OpenJDK / jdk-updates / jdk12u

changeset 25960:729cd80956ae

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Merge
author jmasa
date Thu, 14 Aug 2014 18:42:08 +0000
parents 6c11a6272b60 100a882dcffa
children 983a1ebcc848 63cbacedb1f1
files hotspot/src/share/vm/prims/whitebox.cpp hotspot/src/share/vm/runtime/arguments.cpp hotspot/src/share/vm/runtime/globals.hpp hotspot/src/share/vm/services/management.cpp hotspot/src/share/vm/services/memPtr.cpp hotspot/src/share/vm/services/memPtr.hpp hotspot/src/share/vm/services/memPtrArray.hpp hotspot/src/share/vm/services/memRecorder.cpp hotspot/src/share/vm/services/memRecorder.hpp hotspot/src/share/vm/services/memSnapshot.cpp hotspot/src/share/vm/services/memSnapshot.hpp hotspot/src/share/vm/services/memTrackWorker.cpp hotspot/src/share/vm/services/memTrackWorker.hpp hotspot/test/runtime/NMT/MallocTestType.java hotspot/test/runtime/NMT/PrintNMTStatistics.java hotspot/test/runtime/NMT/ReleaseCommittedMemory.java hotspot/test/runtime/NMT/SummarySanityCheck.java hotspot/test/runtime/NMT/ThreadedMallocTestType.java hotspot/test/runtime/NMT/ThreadedVirtualAllocTestType.java hotspot/test/runtime/NMT/VirtualAllocTestType.java hotspot/test/testlibrary/whitebox/sun/hotspot/WhiteBox.java
diffstat 152 files changed, 6741 insertions(+), 7952 deletions(-) [+]
line wrap: on
line diff
--- a/hotspot/agent/src/os/solaris/proc/saproc.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/agent/src/os/solaris/proc/saproc.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -314,7 +314,7 @@
     handle = dlopen(name, mode);
   }
   if (_libsaproc_debug) {
-    printf("libsaproc DEBUG: pathmap_dlopen %s return 0x%x\n", name, handle);
+    printf("libsaproc DEBUG: pathmap_dlopen %s return 0x%lx\n", name, (unsigned long) handle);
   }
   return handle;
 }
--- a/hotspot/make/excludeSrc.make	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/make/excludeSrc.make	Thu Aug 14 18:42:08 2014 +0000
@@ -119,8 +119,8 @@
       CFLAGS += -DINCLUDE_NMT=0
 
       Src_Files_EXCLUDE += \
-	 memBaseline.cpp memPtr.cpp memRecorder.cpp memReporter.cpp memSnapshot.cpp memTrackWorker.cpp \
-	 memTracker.cpp nmtDCmd.cpp
+	 memBaseline.cpp memReporter.cpp mallocTracker.cpp virtualMemoryTracker.cpp nmtCommon.cpp \
+	 memTracker.cpp nmtDCmd.cpp mallocSiteTable.cpp
 endif
 
 -include $(HS_ALT_MAKE)/excludeSrc.make
--- a/hotspot/src/cpu/ppc/vm/cppInterpreterGenerator_ppc.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/ppc/vm/cppInterpreterGenerator_ppc.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2014, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2012, 2013 SAP AG. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -26,8 +26,9 @@
 #ifndef CPU_PPC_VM_CPPINTERPRETERGENERATOR_PPC_HPP
 #define CPU_PPC_VM_CPPINTERPRETERGENERATOR_PPC_HPP
 
-  address generate_normal_entry(void);
-  address generate_native_entry(void);
+  address generate_normal_entry(bool synchronized);
+  address generate_native_entry(bool synchronized);
+  address generate_math_entry(AbstractInterpreter::MethodKind kind) { return NULL; }
 
   void lock_method(void);
   void unlock_method(void);
--- a/hotspot/src/cpu/ppc/vm/cppInterpreter_ppc.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/ppc/vm/cppInterpreter_ppc.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -938,8 +938,9 @@
 // Interpreter stub for calling a native method. (C++ interpreter)
 // This sets up a somewhat different looking stack for calling the native method
 // than the typical interpreter frame setup.
+// The synchronized parameter is ignored.
 //
-address CppInterpreterGenerator::generate_native_entry(void) {
+address CppInterpreterGenerator::generate_native_entry(bool synchronized) {
   if (native_entry != NULL) return native_entry;
   address entry = __ pc();
 
@@ -1729,7 +1730,8 @@
   __ std(R0, BasicObjectLock::obj_offset_in_bytes(), stack_base);  // Mark lock as unused
 }
 
-address CppInterpreterGenerator::generate_normal_entry(void) {
+// The synchronized parameter is ignored
+address CppInterpreterGenerator::generate_normal_entry(bool synchronized) {
   if (interpreter_frame_manager != NULL) return interpreter_frame_manager;
 
   address entry = __ pc();
@@ -2789,38 +2791,6 @@
   return interpreter_frame_manager;
 }
 
-// Generate code for various sorts of method entries
-//
-address AbstractInterpreterGenerator::generate_method_entry(AbstractInterpreter::MethodKind kind) {
-  address entry_point = NULL;
-
-  switch (kind) {
-    case Interpreter::zerolocals                 :                                                                              break;
-    case Interpreter::zerolocals_synchronized    :                                                                              break;
-    case Interpreter::native                     : // Fall thru
-    case Interpreter::native_synchronized        : entry_point = ((CppInterpreterGenerator*)this)->generate_native_entry();     break;
-    case Interpreter::empty                      :                                                                              break;
-    case Interpreter::accessor                   : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry();      break;
-    case Interpreter::abstract                   : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry();      break;
-    // These are special interpreter intrinsics which we don't support so far.
-    case Interpreter::java_lang_math_sin         :                                                                              break;
-    case Interpreter::java_lang_math_cos         :                                                                              break;
-    case Interpreter::java_lang_math_tan         :                                                                              break;
-    case Interpreter::java_lang_math_abs         :                                                                              break;
-    case Interpreter::java_lang_math_log         :                                                                              break;
-    case Interpreter::java_lang_math_log10       :                                                                              break;
-    case Interpreter::java_lang_math_sqrt        :                                                                              break;
-    case Interpreter::java_lang_math_pow         :                                                                              break;
-    case Interpreter::java_lang_math_exp         :                                                                              break;
-    case Interpreter::java_lang_ref_reference_get: entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break;
-    default                                      : ShouldNotReachHere();                                                        break;
-  }
-
-  if (entry_point) {
-    return entry_point;
-  }
-  return ((InterpreterGenerator*)this)->generate_normal_entry();
-}
 
 InterpreterGenerator::InterpreterGenerator(StubQueue* code)
  : CppInterpreterGenerator(code) {
--- a/hotspot/src/cpu/ppc/vm/interpreterGenerator_ppc.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/ppc/vm/interpreterGenerator_ppc.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 2014, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2012, 2013 SAP AG. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -31,7 +31,12 @@
  private:
 
   address generate_abstract_entry(void);
-  address generate_accessor_entry(void);
+  address generate_jump_to_normal_entry(void);
+  address generate_accessor_entry(void) { return generate_jump_to_normal_entry(); }
+  address generate_empty_entry(void) { return generate_jump_to_normal_entry(); }
   address generate_Reference_get_entry(void);
 
+  // Not supported
+  address generate_CRC32_update_entry() { return NULL; }
+  address generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) { return NULL; }
 #endif // CPU_PPC_VM_INTERPRETERGENERATOR_PPC_HPP
--- a/hotspot/src/cpu/ppc/vm/interpreter_ppc.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/ppc/vm/interpreter_ppc.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -428,6 +428,19 @@
   return entry;
 }
 
+
+// Call an accessor method (assuming it is resolved, otherwise drop into
+// vanilla (slow path) entry.
+address InterpreterGenerator::generate_jump_to_normal_entry(void) {
+  address entry = __ pc();
+  address normal_entry = Interpreter::entry_for_kind(Interpreter::zerolocals);
+  assert(normal_entry != NULL, "should already be generated.");
+  __ branch_to_entry(normal_entry, R11_scratch1);
+  __ flush();
+
+  return entry;
+}
+
 // Abstract method entry.
 //
 address InterpreterGenerator::generate_abstract_entry(void) {
@@ -485,203 +498,6 @@
   return entry;
 }
 
-// Call an accessor method (assuming it is resolved, otherwise drop into
-// vanilla (slow path) entry.
-address InterpreterGenerator::generate_accessor_entry(void) {
-  if (!UseFastAccessorMethods && (!FLAG_IS_ERGO(UseFastAccessorMethods))) {
-    return NULL;
-  }
-
-  Label Lslow_path, Lacquire;
-
-  const Register
-         Rclass_or_obj = R3_ARG1,
-         Rconst_method = R4_ARG2,
-         Rcodes        = Rconst_method,
-         Rcpool_cache  = R5_ARG3,
-         Rscratch      = R11_scratch1,
-         Rjvmti_mode   = Rscratch,
-         Roffset       = R12_scratch2,
-         Rflags        = R6_ARG4,
-         Rbtable       = R7_ARG5;
-
-  static address branch_table[number_of_states];
-
-  address entry = __ pc();
-
-  // Check for safepoint:
-  // Ditch this, real man don't need safepoint checks.
-
-  // Also check for JVMTI mode
-  // Check for null obj, take slow path if so.
-  __ ld(Rclass_or_obj, Interpreter::stackElementSize, CC_INTERP_ONLY(R17_tos) NOT_CC_INTERP(R15_esp));
-  __ lwz(Rjvmti_mode, thread_(interp_only_mode));
-  __ cmpdi(CCR1, Rclass_or_obj, 0);
-  __ cmpwi(CCR0, Rjvmti_mode, 0);
-  __ crorc(/*CCR0 eq*/2, /*CCR1 eq*/4+2, /*CCR0 eq*/2);
-  __ beq(CCR0, Lslow_path); // this==null or jvmti_mode!=0
-
-  // Do 2 things in parallel:
-  // 1. Load the index out of the first instruction word, which looks like this:
-  //    <0x2a><0xb4><index (2 byte, native endianess)>.
-  // 2. Load constant pool cache base.
-  __ ld(Rconst_method, in_bytes(Method::const_offset()), R19_method);
-  __ ld(Rcpool_cache, in_bytes(ConstMethod::constants_offset()), Rconst_method);
-
-  __ lhz(Rcodes, in_bytes(ConstMethod::codes_offset()) + 2, Rconst_method); // Lower half of 32 bit field.
-  __ ld(Rcpool_cache, ConstantPool::cache_offset_in_bytes(), Rcpool_cache);
-
-  // Get the const pool entry by means of <index>.
-  const int codes_shift = exact_log2(in_words(ConstantPoolCacheEntry::size()) * BytesPerWord);
-  __ slwi(Rscratch, Rcodes, codes_shift); // (codes&0xFFFF)<<codes_shift
-  __ add(Rcpool_cache, Rscratch, Rcpool_cache);
-
-  // Check if cpool cache entry is resolved.
-  // We are resolved if the indices offset contains the current bytecode.
-  ByteSize cp_base_offset = ConstantPoolCache::base_offset();
-  // Big Endian:
-  __ lbz(Rscratch, in_bytes(cp_base_offset) + in_bytes(ConstantPoolCacheEntry::indices_offset()) + 7 - 2, Rcpool_cache);
-  __ cmpwi(CCR0, Rscratch, Bytecodes::_getfield);
-  __ bne(CCR0, Lslow_path);
-  __ isync(); // Order succeeding loads wrt. load of _indices field from cpool_cache.
-
-  // Finally, start loading the value: Get cp cache entry into regs.
-  __ ld(Rflags, in_bytes(cp_base_offset) + in_bytes(ConstantPoolCacheEntry::flags_offset()), Rcpool_cache);
-  __ ld(Roffset, in_bytes(cp_base_offset) + in_bytes(ConstantPoolCacheEntry::f2_offset()), Rcpool_cache);
-
-  // Following code is from templateTable::getfield_or_static
-  // Load pointer to branch table
-  __ load_const_optimized(Rbtable, (address)branch_table, Rscratch);
-
-  // Get volatile flag
-  __ rldicl(Rscratch, Rflags, 64-ConstantPoolCacheEntry::is_volatile_shift, 63); // extract volatile bit
-  // note: sync is needed before volatile load on PPC64
-
-  // Check field type
-  __ rldicl(Rflags, Rflags, 64-ConstantPoolCacheEntry::tos_state_shift, 64-ConstantPoolCacheEntry::tos_state_bits);
-
-#ifdef ASSERT
-  Label LFlagInvalid;
-  __ cmpldi(CCR0, Rflags, number_of_states);
-  __ bge(CCR0, LFlagInvalid);
-
-  __ ld(R9_ARG7, 0, R1_SP);
-  __ ld(R10_ARG8, 0, R21_sender_SP);
-  __ cmpd(CCR0, R9_ARG7, R10_ARG8);
-  __ asm_assert_eq("backlink", 0x543);
-#endif // ASSERT
-  __ mr(R1_SP, R21_sender_SP); // Cut the stack back to where the caller started.
-
-  // Load from branch table and dispatch (volatile case: one instruction ahead)
-  __ sldi(Rflags, Rflags, LogBytesPerWord);
-  __ cmpwi(CCR6, Rscratch, 1); // volatile?
-  if (support_IRIW_for_not_multiple_copy_atomic_cpu) {
-    __ sldi(Rscratch, Rscratch, exact_log2(BytesPerInstWord)); // volatile ? size of 1 instruction : 0
-  }
-  __ ldx(Rbtable, Rbtable, Rflags);
-
-  if (support_IRIW_for_not_multiple_copy_atomic_cpu) {
-    __ subf(Rbtable, Rscratch, Rbtable); // point to volatile/non-volatile entry point
-  }
-  __ mtctr(Rbtable);
-  __ bctr();
-
-#ifdef ASSERT
-  __ bind(LFlagInvalid);
-  __ stop("got invalid flag", 0x6541);
-
-  bool all_uninitialized = true,
-       all_initialized   = true;
-  for (int i = 0; i<number_of_states; ++i) {
-    all_uninitialized = all_uninitialized && (branch_table[i] == NULL);
-    all_initialized   = all_initialized   && (branch_table[i] != NULL);
-  }
-  assert(all_uninitialized != all_initialized, "consistency"); // either or
-
-  __ fence(); // volatile entry point (one instruction before non-volatile_entry point)
-  if (branch_table[vtos] == 0) branch_table[vtos] = __ pc(); // non-volatile_entry point
-  if (branch_table[dtos] == 0) branch_table[dtos] = __ pc(); // non-volatile_entry point
-  if (branch_table[ftos] == 0) branch_table[ftos] = __ pc(); // non-volatile_entry point
-  __ stop("unexpected type", 0x6551);
-#endif
-
-  if (branch_table[itos] == 0) { // generate only once
-    __ align(32, 28, 28); // align load
-    __ fence(); // volatile entry point (one instruction before non-volatile_entry point)
-    branch_table[itos] = __ pc(); // non-volatile_entry point
-    __ lwax(R3_RET, Rclass_or_obj, Roffset);
-    __ beq(CCR6, Lacquire);
-    __ blr();
-  }
-
-  if (branch_table[ltos] == 0) { // generate only once
-    __ align(32, 28, 28); // align load
-    __ fence(); // volatile entry point (one instruction before non-volatile_entry point)
-    branch_table[ltos] = __ pc(); // non-volatile_entry point
-    __ ldx(R3_RET, Rclass_or_obj, Roffset);
-    __ beq(CCR6, Lacquire);
-    __ blr();
-  }
-
-  if (branch_table[btos] == 0) { // generate only once
-    __ align(32, 28, 28); // align load
-    __ fence(); // volatile entry point (one instruction before non-volatile_entry point)
-    branch_table[btos] = __ pc(); // non-volatile_entry point
-    __ lbzx(R3_RET, Rclass_or_obj, Roffset);
-    __ extsb(R3_RET, R3_RET);
-    __ beq(CCR6, Lacquire);
-    __ blr();
-  }
-
-  if (branch_table[ctos] == 0) { // generate only once
-    __ align(32, 28, 28); // align load
-    __ fence(); // volatile entry point (one instruction before non-volatile_entry point)
-    branch_table[ctos] = __ pc(); // non-volatile_entry point
-    __ lhzx(R3_RET, Rclass_or_obj, Roffset);
-    __ beq(CCR6, Lacquire);
-    __ blr();
-  }
-
-  if (branch_table[stos] == 0) { // generate only once
-    __ align(32, 28, 28); // align load
-    __ fence(); // volatile entry point (one instruction before non-volatile_entry point)
-    branch_table[stos] = __ pc(); // non-volatile_entry point
-    __ lhax(R3_RET, Rclass_or_obj, Roffset);
-    __ beq(CCR6, Lacquire);
-    __ blr();
-  }
-
-  if (branch_table[atos] == 0) { // generate only once
-    __ align(32, 28, 28); // align load
-    __ fence(); // volatile entry point (one instruction before non-volatile_entry point)
-    branch_table[atos] = __ pc(); // non-volatile_entry point
-    __ load_heap_oop(R3_RET, (RegisterOrConstant)Roffset, Rclass_or_obj);
-    __ verify_oop(R3_RET);
-    //__ dcbt(R3_RET); // prefetch
-    __ beq(CCR6, Lacquire);
-    __ blr();
-  }
-
-  __ align(32, 12);
-  __ bind(Lacquire);
-  __ twi_0(R3_RET);
-  __ isync(); // acquire
-  __ blr();
-
-#ifdef ASSERT
-  for (int i = 0; i<number_of_states; ++i) {
-    assert(branch_table[i], "accessor_entry initialization");
-    //tty->print_cr("accessor_entry: branch_table[%d] = 0x%llx (opcode 0x%llx)", i, branch_table[i], *((unsigned int*)branch_table[i]));
-  }
-#endif
-
-  __ bind(Lslow_path);
-  __ branch_to_entry(Interpreter::entry_for_kind(Interpreter::zerolocals), Rscratch);
-  __ flush();
-
-  return entry;
-}
-
 // Interpreter intrinsic for WeakReference.get().
 // 1. Don't push a full blown frame and go on dispatching, but fetch the value
 //    into R8 and return quickly
@@ -713,7 +529,6 @@
   //   and so we don't need to call the G1 pre-barrier. Thus we can use the
   //   regular method entry code to generate the NPE.
   //
-  // This code is based on generate_accessor_enty.
 
   address entry = __ pc();
 
@@ -768,7 +583,7 @@
 
     return entry;
   } else {
-    return generate_accessor_entry();
+    return generate_jump_to_normal_entry();
   }
 }
 
--- a/hotspot/src/cpu/ppc/vm/templateInterpreterGenerator_ppc.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/ppc/vm/templateInterpreterGenerator_ppc.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -30,7 +30,6 @@
   address generate_normal_entry(bool synchronized);
   address generate_native_entry(bool synchronized);
   address generate_math_entry(AbstractInterpreter::MethodKind kind);
-  address generate_empty_entry(void);
 
   void lock_method(Register Rflags, Register Rscratch1, Register Rscratch2, bool flags_preloaded=false);
   void unlock_method(bool check_exceptions = true);
--- a/hotspot/src/cpu/ppc/vm/templateInterpreter_ppc.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/ppc/vm/templateInterpreter_ppc.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -602,48 +602,6 @@
 
 // End of helpers
 
-// ============================================================================
-// Various method entries
-//
-
-// Empty method, generate a very fast return. We must skip this entry if
-// someone's debugging, indicated by the flag
-// "interp_mode" in the Thread obj.
-// Note: empty methods are generated mostly methods that do assertions, which are
-// disabled in the "java opt build".
-address TemplateInterpreterGenerator::generate_empty_entry(void) {
-  if (!UseFastEmptyMethods) {
-    NOT_PRODUCT(__ should_not_reach_here();)
-    return Interpreter::entry_for_kind(Interpreter::zerolocals);
-  }
-
-  Label Lslow_path;
-  const Register Rjvmti_mode = R11_scratch1;
-  address entry = __ pc();
-
-  __ lwz(Rjvmti_mode, thread_(interp_only_mode));
-  __ cmpwi(CCR0, Rjvmti_mode, 0);
-  __ bne(CCR0, Lslow_path); // jvmti_mode!=0
-
-  // Noone's debuggin: Simply return.
-  // Pop c2i arguments (if any) off when we return.
-#ifdef ASSERT
-    __ ld(R9_ARG7, 0, R1_SP);
-    __ ld(R10_ARG8, 0, R21_sender_SP);
-    __ cmpd(CCR0, R9_ARG7, R10_ARG8);
-    __ asm_assert_eq("backlink", 0x545);
-#endif // ASSERT
-  __ mr(R1_SP, R21_sender_SP); // Cut the stack back to where the caller started.
-
-  // And we're done.
-  __ blr();
-
-  __ bind(Lslow_path);
-  __ branch_to_entry(Interpreter::entry_for_kind(Interpreter::zerolocals), R11_scratch1);
-  __ flush();
-
-  return entry;
-}
 
 // Support abs and sqrt like in compiler.
 // For others we can use a normal (native) entry.
@@ -1289,45 +1247,6 @@
   return entry;
 }
 
-// =============================================================================
-// Entry points
-
-address AbstractInterpreterGenerator::generate_method_entry(
-                                        AbstractInterpreter::MethodKind kind) {
-  // Determine code generation flags.
-  bool synchronized = false;
-  address entry_point = NULL;
-
-  switch (kind) {
-  case Interpreter::zerolocals             :                                                                             break;
-  case Interpreter::zerolocals_synchronized: synchronized = true;                                                        break;
-  case Interpreter::native                 : entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); break;
-  case Interpreter::native_synchronized    : entry_point = ((InterpreterGenerator*) this)->generate_native_entry(true);  break;
-  case Interpreter::empty                  : entry_point = ((InterpreterGenerator*) this)->generate_empty_entry();       break;
-  case Interpreter::accessor               : entry_point = ((InterpreterGenerator*) this)->generate_accessor_entry();    break;
-  case Interpreter::abstract               : entry_point = ((InterpreterGenerator*) this)->generate_abstract_entry();    break;
-
-  case Interpreter::java_lang_math_sin     : // fall thru
-  case Interpreter::java_lang_math_cos     : // fall thru
-  case Interpreter::java_lang_math_tan     : // fall thru
-  case Interpreter::java_lang_math_abs     : // fall thru
-  case Interpreter::java_lang_math_log     : // fall thru
-  case Interpreter::java_lang_math_log10   : // fall thru
-  case Interpreter::java_lang_math_sqrt    : // fall thru
-  case Interpreter::java_lang_math_pow     : // fall thru
-  case Interpreter::java_lang_math_exp     : entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind);    break;
-  case Interpreter::java_lang_ref_reference_get
-                                           : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break;
-  default                                  : ShouldNotReachHere();                                                       break;
-  }
-
-  if (entry_point) {
-    return entry_point;
-  }
-
-  return ((InterpreterGenerator*) this)->generate_normal_entry(synchronized);
-}
-
 // These should never be compiled since the interpreter will prefer
 // the compiled version to the intrinsic version.
 bool AbstractInterpreter::can_be_compiled(methodHandle m) {
@@ -1355,7 +1274,7 @@
                                          int callee_locals,
                                          bool is_top_frame) {
   // Note: This calculation must exactly parallel the frame setup
-  // in AbstractInterpreterGenerator::generate_method_entry.
+  // in InterpreterGenerator::generate_fixed_frame.
   assert(Interpreter::stackElementWords == 1, "sanity");
   const int max_alignment_space = StackAlignmentInBytes / Interpreter::stackElementSize;
   const int abi_scratch = is_top_frame ? (frame::abi_reg_args_size / Interpreter::stackElementSize) :
--- a/hotspot/src/cpu/ppc/vm/vm_version_ppc.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/ppc/vm/vm_version_ppc.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -29,6 +29,7 @@
 #include "compiler/disassembler.hpp"
 #include "memory/resourceArea.hpp"
 #include "runtime/java.hpp"
+#include "runtime/os.hpp"
 #include "runtime/stubCodeGenerator.hpp"
 #include "utilities/defaultStream.hpp"
 #include "vm_version_ppc.hpp"
@@ -108,7 +109,7 @@
                (has_vand()    ? " vand"    : "")
                // Make sure number of %s matches num_features!
               );
-  _features_str = strdup(buf);
+  _features_str = os::strdup(buf);
   NOT_PRODUCT(if (Verbose) print_features(););
 
   // PPC64 supports 8-byte compare-exchange operations (see
--- a/hotspot/src/cpu/sparc/vm/cppInterpreter_sparc.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/sparc/vm/cppInterpreter_sparc.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -29,6 +29,7 @@
 #include "interpreter/interpreter.hpp"
 #include "interpreter/interpreterGenerator.hpp"
 #include "interpreter/interpreterRuntime.hpp"
+#include "interpreter/interp_masm.hpp"
 #include "oops/arrayOop.hpp"
 #include "oops/methodData.hpp"
 #include "oops/method.hpp"
@@ -68,9 +69,7 @@
 #define STATE(field_name) Lstate, in_bytes(byte_offset_of(BytecodeInterpreter, field_name))
 #define __ _masm->
 
-Label frame_manager_entry;
-Label fast_accessor_slow_entry_path;  // fast accessor methods need to be able to jmp to unsynchronized
-                                      // c++ interpreter entry point this holds that entry point label.
+Label frame_manager_entry; // c++ interpreter entry point this holds that entry point label.
 
 static address unctrap_frame_manager_entry  = NULL;
 
@@ -452,110 +451,6 @@
   return NULL;
 }
 
-// Call an accessor method (assuming it is resolved, otherwise drop into
-// vanilla (slow path) entry
-
-// Generates code to elide accessor methods
-// Uses G3_scratch and G1_scratch as scratch
-address InterpreterGenerator::generate_accessor_entry(void) {
-
-  // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites thereof;
-  // parameter size = 1
-  // Note: We can only use this code if the getfield has been resolved
-  //       and if we don't have a null-pointer exception => check for
-  //       these conditions first and use slow path if necessary.
-  address entry = __ pc();
-  Label slow_path;
-
-  if ( UseFastAccessorMethods) {
-    // Check if we need to reach a safepoint and generate full interpreter
-    // frame if so.
-    AddressLiteral sync_state(SafepointSynchronize::address_of_state());
-    __ load_contents(sync_state, G3_scratch);
-    __ cmp(G3_scratch, SafepointSynchronize::_not_synchronized);
-    __ br(Assembler::notEqual, false, Assembler::pn, slow_path);
-    __ delayed()->nop();
-
-    // Check if local 0 != NULL
-    __ ld_ptr(Gargs, G0, Otos_i ); // get local 0
-    __ tst(Otos_i);  // check if local 0 == NULL and go the slow path
-    __ brx(Assembler::zero, false, Assembler::pn, slow_path);
-    __ delayed()->nop();
-
-
-    // read first instruction word and extract bytecode @ 1 and index @ 2
-    // get first 4 bytes of the bytecodes (big endian!)
-    __ ld_ptr(Address(G5_method, in_bytes(Method::const_offset())), G1_scratch);
-    __ ld(Address(G1_scratch, in_bytes(ConstMethod::codes_offset())), G1_scratch);
-
-    // move index @ 2 far left then to the right most two bytes.
-    __ sll(G1_scratch, 2*BitsPerByte, G1_scratch);
-    __ srl(G1_scratch, 2*BitsPerByte - exact_log2(in_words(
-                      ConstantPoolCacheEntry::size()) * BytesPerWord), G1_scratch);
-
-    // get constant pool cache
-    __ ld_ptr(G5_method, in_bytes(Method::const_offset()), G3_scratch);
-    __ ld_ptr(G3_scratch, in_bytes(ConstMethod::constants_offset()), G3_scratch);
-    __ ld_ptr(G3_scratch, ConstantPool::cache_offset_in_bytes(), G3_scratch);
-
-    // get specific constant pool cache entry
-    __ add(G3_scratch, G1_scratch, G3_scratch);
-
-    // Check the constant Pool cache entry to see if it has been resolved.
-    // If not, need the slow path.
-    ByteSize cp_base_offset = ConstantPoolCache::base_offset();
-    __ ld_ptr(G3_scratch, in_bytes(cp_base_offset + ConstantPoolCacheEntry::indices_offset()), G1_scratch);
-    __ srl(G1_scratch, 2*BitsPerByte, G1_scratch);
-    __ and3(G1_scratch, 0xFF, G1_scratch);
-    __ cmp(G1_scratch, Bytecodes::_getfield);
-    __ br(Assembler::notEqual, false, Assembler::pn, slow_path);
-    __ delayed()->nop();
-
-    // Get the type and return field offset from the constant pool cache
-    __ ld_ptr(G3_scratch, in_bytes(cp_base_offset + ConstantPoolCacheEntry::flags_offset()), G1_scratch);
-    __ ld_ptr(G3_scratch, in_bytes(cp_base_offset + ConstantPoolCacheEntry::f2_offset()), G3_scratch);
-
-    Label xreturn_path;
-    // Need to differentiate between igetfield, agetfield, bgetfield etc.
-    // because they are different sizes.
-    // Get the type from the constant pool cache
-    __ srl(G1_scratch, ConstantPoolCacheEntry::tos_state_shift, G1_scratch);
-    // Make sure we don't need to mask G1_scratch after the above shift
-    ConstantPoolCacheEntry::verify_tos_state_shift();
-    __ cmp(G1_scratch, atos );
-    __ br(Assembler::equal, true, Assembler::pt, xreturn_path);
-    __ delayed()->ld_ptr(Otos_i, G3_scratch, Otos_i);
-    __ cmp(G1_scratch, itos);
-    __ br(Assembler::equal, true, Assembler::pt, xreturn_path);
-    __ delayed()->ld(Otos_i, G3_scratch, Otos_i);
-    __ cmp(G1_scratch, stos);
-    __ br(Assembler::equal, true, Assembler::pt, xreturn_path);
-    __ delayed()->ldsh(Otos_i, G3_scratch, Otos_i);
-    __ cmp(G1_scratch, ctos);
-    __ br(Assembler::equal, true, Assembler::pt, xreturn_path);
-    __ delayed()->lduh(Otos_i, G3_scratch, Otos_i);
-#ifdef ASSERT
-    __ cmp(G1_scratch, btos);
-    __ br(Assembler::equal, true, Assembler::pt, xreturn_path);
-    __ delayed()->ldsb(Otos_i, G3_scratch, Otos_i);
-    __ should_not_reach_here();
-#endif
-    __ ldsb(Otos_i, G3_scratch, Otos_i);
-    __ bind(xreturn_path);
-
-    // _ireturn/_areturn
-    __ retl();                      // return from leaf routine
-    __ delayed()->mov(O5_savedSP, SP);
-
-    // Generate regular method entry
-    __ bind(slow_path);
-    __ ba(fast_accessor_slow_entry_path);
-    __ delayed()->nop();
-    return entry;
-  }
-  return NULL;
-}
-
 address InterpreterGenerator::generate_Reference_get_entry(void) {
 #if INCLUDE_ALL_GCS
   if (UseG1GC) {
@@ -573,7 +468,7 @@
 
   // If G1 is not enabled then attempt to go through the accessor entry point
   // Reference.get is an accessor
-  return generate_accessor_entry();
+  return generate_jump_to_normal_entry();
 }
 
 //
@@ -1870,23 +1765,6 @@
   __ ba(call_interpreter_2);
   __ delayed()->st_ptr(O1, STATE(_stack));
 
-
-  // Fast accessor methods share this entry point.
-  // This works because frame manager is in the same codelet
-  // This can either be an entry via call_stub/c1/c2 or a recursive interpreter call
-  // we need to do a little register fixup here once we distinguish the two of them
-  if (UseFastAccessorMethods && !synchronized) {
-  // Call stub_return address still in O7
-    __ bind(fast_accessor_slow_entry_path);
-    __ set((intptr_t)return_from_native_method - 8, Gtmp1);
-    __ cmp(Gtmp1, O7);                                                // returning to interpreter?
-    __ brx(Assembler::equal, true, Assembler::pt, re_dispatch);       // yep
-    __ delayed()->nop();
-    __ ba(re_dispatch);
-    __ delayed()->mov(G0, prevState);                                 // initial entry
-
-  }
-
   // interpreter returning to native code (call_stub/c1/c2)
   // convert result and unwind initial activation
   // L2_scratch - scaled result type index
--- a/hotspot/src/cpu/sparc/vm/interpreterGenerator_sparc.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/sparc/vm/interpreterGenerator_sparc.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -32,9 +32,11 @@
   address generate_normal_entry(bool synchronized);
   address generate_native_entry(bool synchronized);
   address generate_abstract_entry(void);
-  address generate_math_entry(AbstractInterpreter::MethodKind kind);
-  address generate_empty_entry(void);
-  address generate_accessor_entry(void);
+  // there are no math intrinsics on sparc
+  address generate_math_entry(AbstractInterpreter::MethodKind kind) { return NULL; }
+  address generate_jump_to_normal_entry(void);
+  address generate_accessor_entry(void) { return generate_jump_to_normal_entry(); }
+  address generate_empty_entry(void) { return generate_jump_to_normal_entry(); }
   address generate_Reference_get_entry(void);
   void lock_method(void);
   void save_native_result(void);
@@ -43,4 +45,7 @@
   void generate_counter_incr(Label* overflow, Label* profile_method, Label* profile_method_continue);
   void generate_counter_overflow(Label& Lcontinue);
 
+  // Not supported
+  address generate_CRC32_update_entry() { return NULL; }
+  address generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) { return NULL; }
 #endif // CPU_SPARC_VM_INTERPRETERGENERATOR_SPARC_HPP
--- a/hotspot/src/cpu/sparc/vm/interpreter_sparc.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/sparc/vm/interpreter_sparc.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -241,6 +241,15 @@
 
 // Various method entries
 
+address InterpreterGenerator::generate_jump_to_normal_entry(void) {
+  address entry = __ pc();
+  assert(Interpreter::entry_for_kind(Interpreter::zerolocals) != NULL, "should already be generated");
+  AddressLiteral al(Interpreter::entry_for_kind(Interpreter::zerolocals));
+  __ jump_to(al, G3_scratch);
+  __ delayed()->nop();
+  return entry;
+}
+
 // Abstract method entry
 // Attempt to execute abstract method. Throw exception
 //
@@ -255,159 +264,6 @@
 
 }
 
-
-//----------------------------------------------------------------------------------------------------
-// Entry points & stack frame layout
-//
-// Here we generate the various kind of entries into the interpreter.
-// The two main entry type are generic bytecode methods and native call method.
-// These both come in synchronized and non-synchronized versions but the
-// frame layout they create is very similar. The other method entry
-// types are really just special purpose entries that are really entry
-// and interpretation all in one. These are for trivial methods like
-// accessor, empty, or special math methods.
-//
-// When control flow reaches any of the entry types for the interpreter
-// the following holds ->
-//
-// C2 Calling Conventions:
-//
-// The entry code below assumes that the following registers are set
-// when coming in:
-//    G5_method: holds the Method* of the method to call
-//    Lesp:    points to the TOS of the callers expression stack
-//             after having pushed all the parameters
-//
-// The entry code does the following to setup an interpreter frame
-//   pop parameters from the callers stack by adjusting Lesp
-//   set O0 to Lesp
-//   compute X = (max_locals - num_parameters)
-//   bump SP up by X to accomadate the extra locals
-//   compute X = max_expression_stack
-//               + vm_local_words
-//               + 16 words of register save area
-//   save frame doing a save sp, -X, sp growing towards lower addresses
-//   set Lbcp, Lmethod, LcpoolCache
-//   set Llocals to i0
-//   set Lmonitors to FP - rounded_vm_local_words
-//   set Lesp to Lmonitors - 4
-//
-//  The frame has now been setup to do the rest of the entry code
-
-// Try this optimization:  Most method entries could live in a
-// "one size fits all" stack frame without all the dynamic size
-// calculations.  It might be profitable to do all this calculation
-// statically and approximately for "small enough" methods.
-
-//-----------------------------------------------------------------------------------------------
-
-// C1 Calling conventions
-//
-// Upon method entry, the following registers are setup:
-//
-// g2 G2_thread: current thread
-// g5 G5_method: method to activate
-// g4 Gargs  : pointer to last argument
-//
-//
-// Stack:
-//
-// +---------------+ <--- sp
-// |               |
-// : reg save area :
-// |               |
-// +---------------+ <--- sp + 0x40
-// |               |
-// : extra 7 slots :      note: these slots are not really needed for the interpreter (fix later)
-// |               |
-// +---------------+ <--- sp + 0x5c
-// |               |
-// :     free      :
-// |               |
-// +---------------+ <--- Gargs
-// |               |
-// :   arguments   :
-// |               |
-// +---------------+
-// |               |
-//
-//
-//
-// AFTER FRAME HAS BEEN SETUP for method interpretation the stack looks like:
-//
-// +---------------+ <--- sp
-// |               |
-// : reg save area :
-// |               |
-// +---------------+ <--- sp + 0x40
-// |               |
-// : extra 7 slots :      note: these slots are not really needed for the interpreter (fix later)
-// |               |
-// +---------------+ <--- sp + 0x5c
-// |               |
-// :               :
-// |               | <--- Lesp
-// +---------------+ <--- Lmonitors (fp - 0x18)
-// |   VM locals   |
-// +---------------+ <--- fp
-// |               |
-// : reg save area :
-// |               |
-// +---------------+ <--- fp + 0x40
-// |               |
-// : extra 7 slots :      note: these slots are not really needed for the interpreter (fix later)
-// |               |
-// +---------------+ <--- fp + 0x5c
-// |               |
-// :     free      :
-// |               |
-// +---------------+
-// |               |
-// : nonarg locals :
-// |               |
-// +---------------+
-// |               |
-// :   arguments   :
-// |               | <--- Llocals
-// +---------------+ <--- Gargs
-// |               |
-
-address AbstractInterpreterGenerator::generate_method_entry(AbstractInterpreter::MethodKind kind) {
-  // determine code generation flags
-  bool synchronized = false;
-  address entry_point = NULL;
-
-  switch (kind) {
-    case Interpreter::zerolocals             :                                                                             break;
-    case Interpreter::zerolocals_synchronized: synchronized = true;                                                        break;
-    case Interpreter::native                 : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false);  break;
-    case Interpreter::native_synchronized    : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true);   break;
-    case Interpreter::empty                  : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry();        break;
-    case Interpreter::accessor               : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry();     break;
-    case Interpreter::abstract               : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry();     break;
-
-    case Interpreter::java_lang_math_sin     :                                                                             break;
-    case Interpreter::java_lang_math_cos     :                                                                             break;
-    case Interpreter::java_lang_math_tan     :                                                                             break;
-    case Interpreter::java_lang_math_sqrt    :                                                                             break;
-    case Interpreter::java_lang_math_abs     :                                                                             break;
-    case Interpreter::java_lang_math_log     :                                                                             break;
-    case Interpreter::java_lang_math_log10   :                                                                             break;
-    case Interpreter::java_lang_math_pow     :                                                                             break;
-    case Interpreter::java_lang_math_exp     :                                                                             break;
-    case Interpreter::java_lang_ref_reference_get
-                                             : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break;
-    default:
-      fatal(err_msg("unexpected method kind: %d", kind));
-      break;
-  }
-
-  if (entry_point) return entry_point;
-
-  return ((InterpreterGenerator*)this)->generate_normal_entry(synchronized);
-}
-
-
 bool AbstractInterpreter::can_be_compiled(methodHandle m) {
   // No special entry points that preclude compilation
   return true;
--- a/hotspot/src/cpu/sparc/vm/templateInterpreter_sparc.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/sparc/vm/templateInterpreter_sparc.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -456,6 +456,115 @@
 // Generate a fixed interpreter frame. This is identical setup for interpreted
 // methods and for native methods hence the shared code.
 
+
+//----------------------------------------------------------------------------------------------------
+// Stack frame layout
+//
+// When control flow reaches any of the entry types for the interpreter
+// the following holds ->
+//
+// C2 Calling Conventions:
+//
+// The entry code below assumes that the following registers are set
+// when coming in:
+//    G5_method: holds the Method* of the method to call
+//    Lesp:    points to the TOS of the callers expression stack
+//             after having pushed all the parameters
+//
+// The entry code does the following to setup an interpreter frame
+//   pop parameters from the callers stack by adjusting Lesp
+//   set O0 to Lesp
+//   compute X = (max_locals - num_parameters)
+//   bump SP up by X to accomadate the extra locals
+//   compute X = max_expression_stack
+//               + vm_local_words
+//               + 16 words of register save area
+//   save frame doing a save sp, -X, sp growing towards lower addresses
+//   set Lbcp, Lmethod, LcpoolCache
+//   set Llocals to i0
+//   set Lmonitors to FP - rounded_vm_local_words
+//   set Lesp to Lmonitors - 4
+//
+//  The frame has now been setup to do the rest of the entry code
+
+// Try this optimization:  Most method entries could live in a
+// "one size fits all" stack frame without all the dynamic size
+// calculations.  It might be profitable to do all this calculation
+// statically and approximately for "small enough" methods.
+
+//-----------------------------------------------------------------------------------------------
+
+// C1 Calling conventions
+//
+// Upon method entry, the following registers are setup:
+//
+// g2 G2_thread: current thread
+// g5 G5_method: method to activate
+// g4 Gargs  : pointer to last argument
+//
+//
+// Stack:
+//
+// +---------------+ <--- sp
+// |               |
+// : reg save area :
+// |               |
+// +---------------+ <--- sp + 0x40
+// |               |
+// : extra 7 slots :      note: these slots are not really needed for the interpreter (fix later)
+// |               |
+// +---------------+ <--- sp + 0x5c
+// |               |
+// :     free      :
+// |               |
+// +---------------+ <--- Gargs
+// |               |
+// :   arguments   :
+// |               |
+// +---------------+
+// |               |
+//
+//
+//
+// AFTER FRAME HAS BEEN SETUP for method interpretation the stack looks like:
+//
+// +---------------+ <--- sp
+// |               |
+// : reg save area :
+// |               |
+// +---------------+ <--- sp + 0x40
+// |               |
+// : extra 7 slots :      note: these slots are not really needed for the interpreter (fix later)
+// |               |
+// +---------------+ <--- sp + 0x5c
+// |               |
+// :               :
+// |               | <--- Lesp
+// +---------------+ <--- Lmonitors (fp - 0x18)
+// |   VM locals   |
+// +---------------+ <--- fp
+// |               |
+// : reg save area :
+// |               |
+// +---------------+ <--- fp + 0x40
+// |               |
+// : extra 7 slots :      note: these slots are not really needed for the interpreter (fix later)
+// |               |
+// +---------------+ <--- fp + 0x5c
+// |               |
+// :     free      :
+// |               |
+// +---------------+
+// |               |
+// : nonarg locals :
+// |               |
+// +---------------+
+// |               |
+// :   arguments   :
+// |               | <--- Llocals
+// +---------------+ <--- Gargs
+// |               |
+
 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) {
   //
   //
@@ -599,136 +708,6 @@
 
 }
 
-// Empty method, generate a very fast return.
-
-address InterpreterGenerator::generate_empty_entry(void) {
-
-  // A method that does nother but return...
-
-  address entry = __ pc();
-  Label slow_path;
-
-  // do nothing for empty methods (do not even increment invocation counter)
-  if ( UseFastEmptyMethods) {
-    // If we need a safepoint check, generate full interpreter entry.
-    AddressLiteral sync_state(SafepointSynchronize::address_of_state());
-    __ set(sync_state, G3_scratch);
-    __ cmp_and_br_short(G3_scratch, SafepointSynchronize::_not_synchronized, Assembler::notEqual, Assembler::pn, slow_path);
-
-    // Code: _return
-    __ retl();
-    __ delayed()->mov(O5_savedSP, SP);
-
-    __ bind(slow_path);
-    (void) generate_normal_entry(false);
-
-    return entry;
-  }
-  return NULL;
-}
-
-// Call an accessor method (assuming it is resolved, otherwise drop into
-// vanilla (slow path) entry
-
-// Generates code to elide accessor methods
-// Uses G3_scratch and G1_scratch as scratch
-address InterpreterGenerator::generate_accessor_entry(void) {
-
-  // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites thereof;
-  // parameter size = 1
-  // Note: We can only use this code if the getfield has been resolved
-  //       and if we don't have a null-pointer exception => check for
-  //       these conditions first and use slow path if necessary.
-  address entry = __ pc();
-  Label slow_path;
-
-
-  // XXX: for compressed oops pointer loading and decoding doesn't fit in
-  // delay slot and damages G1
-  if ( UseFastAccessorMethods && !UseCompressedOops ) {
-    // Check if we need to reach a safepoint and generate full interpreter
-    // frame if so.
-    AddressLiteral sync_state(SafepointSynchronize::address_of_state());
-    __ load_contents(sync_state, G3_scratch);
-    __ cmp(G3_scratch, SafepointSynchronize::_not_synchronized);
-    __ cmp_and_br_short(G3_scratch, SafepointSynchronize::_not_synchronized, Assembler::notEqual, Assembler::pn, slow_path);
-
-    // Check if local 0 != NULL
-    __ ld_ptr(Gargs, G0, Otos_i ); // get local 0
-    // check if local 0 == NULL and go the slow path
-    __ br_null_short(Otos_i, Assembler::pn, slow_path);
-
-
-    // read first instruction word and extract bytecode @ 1 and index @ 2
-    // get first 4 bytes of the bytecodes (big endian!)
-    __ ld_ptr(G5_method, Method::const_offset(), G1_scratch);
-    __ ld(G1_scratch, ConstMethod::codes_offset(), G1_scratch);
-
-    // move index @ 2 far left then to the right most two bytes.
-    __ sll(G1_scratch, 2*BitsPerByte, G1_scratch);
-    __ srl(G1_scratch, 2*BitsPerByte - exact_log2(in_words(
-                      ConstantPoolCacheEntry::size()) * BytesPerWord), G1_scratch);
-
-    // get constant pool cache
-    __ ld_ptr(G5_method, Method::const_offset(), G3_scratch);
-    __ ld_ptr(G3_scratch, ConstMethod::constants_offset(), G3_scratch);
-    __ ld_ptr(G3_scratch, ConstantPool::cache_offset_in_bytes(), G3_scratch);
-
-    // get specific constant pool cache entry
-    __ add(G3_scratch, G1_scratch, G3_scratch);
-
-    // Check the constant Pool cache entry to see if it has been resolved.
-    // If not, need the slow path.
-    ByteSize cp_base_offset = ConstantPoolCache::base_offset();
-    __ ld_ptr(G3_scratch, cp_base_offset + ConstantPoolCacheEntry::indices_offset(), G1_scratch);
-    __ srl(G1_scratch, 2*BitsPerByte, G1_scratch);
-    __ and3(G1_scratch, 0xFF, G1_scratch);
-    __ cmp_and_br_short(G1_scratch, Bytecodes::_getfield, Assembler::notEqual, Assembler::pn, slow_path);
-
-    // Get the type and return field offset from the constant pool cache
-    __ ld_ptr(G3_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), G1_scratch);
-    __ ld_ptr(G3_scratch, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), G3_scratch);
-
-    Label xreturn_path;
-    // Need to differentiate between igetfield, agetfield, bgetfield etc.
-    // because they are different sizes.
-    // Get the type from the constant pool cache
-    __ srl(G1_scratch, ConstantPoolCacheEntry::tos_state_shift, G1_scratch);
-    // Make sure we don't need to mask G1_scratch after the above shift
-    ConstantPoolCacheEntry::verify_tos_state_shift();
-    __ cmp(G1_scratch, atos );
-    __ br(Assembler::equal, true, Assembler::pt, xreturn_path);
-    __ delayed()->ld_ptr(Otos_i, G3_scratch, Otos_i);
-    __ cmp(G1_scratch, itos);
-    __ br(Assembler::equal, true, Assembler::pt, xreturn_path);
-    __ delayed()->ld(Otos_i, G3_scratch, Otos_i);
-    __ cmp(G1_scratch, stos);
-    __ br(Assembler::equal, true, Assembler::pt, xreturn_path);
-    __ delayed()->ldsh(Otos_i, G3_scratch, Otos_i);
-    __ cmp(G1_scratch, ctos);
-    __ br(Assembler::equal, true, Assembler::pt, xreturn_path);
-    __ delayed()->lduh(Otos_i, G3_scratch, Otos_i);
-#ifdef ASSERT
-    __ cmp(G1_scratch, btos);
-    __ br(Assembler::equal, true, Assembler::pt, xreturn_path);
-    __ delayed()->ldsb(Otos_i, G3_scratch, Otos_i);
-    __ should_not_reach_here();
-#endif
-    __ ldsb(Otos_i, G3_scratch, Otos_i);
-    __ bind(xreturn_path);
-
-    // _ireturn/_areturn
-    __ retl();                      // return from leaf routine
-    __ delayed()->mov(O5_savedSP, SP);
-
-    // Generate regular method entry
-    __ bind(slow_path);
-    (void) generate_normal_entry(false);
-    return entry;
-  }
-  return NULL;
-}
-
 // Method entry for java.lang.ref.Reference.get.
 address InterpreterGenerator::generate_Reference_get_entry(void) {
 #if INCLUDE_ALL_GCS
@@ -806,7 +785,7 @@
 
   // If G1 is not enabled then attempt to go through the accessor entry point
   // Reference.get is an accessor
-  return generate_accessor_entry();
+  return generate_jump_to_normal_entry();
 }
 
 //
@@ -1242,8 +1221,6 @@
 
 
 // Generic method entry to (asm) interpreter
-//------------------------------------------------------------------------------------------------------------------------
-//
 address InterpreterGenerator::generate_normal_entry(bool synchronized) {
   address entry = __ pc();
 
@@ -1410,123 +1387,6 @@
   return entry;
 }
 
-
-//----------------------------------------------------------------------------------------------------
-// Entry points & stack frame layout
-//
-// Here we generate the various kind of entries into the interpreter.
-// The two main entry type are generic bytecode methods and native call method.
-// These both come in synchronized and non-synchronized versions but the
-// frame layout they create is very similar. The other method entry
-// types are really just special purpose entries that are really entry
-// and interpretation all in one. These are for trivial methods like
-// accessor, empty, or special math methods.
-//
-// When control flow reaches any of the entry types for the interpreter
-// the following holds ->
-//
-// C2 Calling Conventions:
-//
-// The entry code below assumes that the following registers are set
-// when coming in:
-//    G5_method: holds the Method* of the method to call
-//    Lesp:    points to the TOS of the callers expression stack
-//             after having pushed all the parameters
-//
-// The entry code does the following to setup an interpreter frame
-//   pop parameters from the callers stack by adjusting Lesp
-//   set O0 to Lesp
-//   compute X = (max_locals - num_parameters)
-//   bump SP up by X to accomadate the extra locals
-//   compute X = max_expression_stack
-//               + vm_local_words
-//               + 16 words of register save area
-//   save frame doing a save sp, -X, sp growing towards lower addresses
-//   set Lbcp, Lmethod, LcpoolCache
-//   set Llocals to i0
-//   set Lmonitors to FP - rounded_vm_local_words
-//   set Lesp to Lmonitors - 4
-//
-//  The frame has now been setup to do the rest of the entry code
-
-// Try this optimization:  Most method entries could live in a
-// "one size fits all" stack frame without all the dynamic size
-// calculations.  It might be profitable to do all this calculation
-// statically and approximately for "small enough" methods.
-
-//-----------------------------------------------------------------------------------------------
-
-// C1 Calling conventions
-//
-// Upon method entry, the following registers are setup:
-//
-// g2 G2_thread: current thread
-// g5 G5_method: method to activate
-// g4 Gargs  : pointer to last argument
-//
-//
-// Stack:
-//
-// +---------------+ <--- sp
-// |               |
-// : reg save area :
-// |               |
-// +---------------+ <--- sp + 0x40
-// |               |
-// : extra 7 slots :      note: these slots are not really needed for the interpreter (fix later)
-// |               |
-// +---------------+ <--- sp + 0x5c
-// |               |
-// :     free      :
-// |               |
-// +---------------+ <--- Gargs
-// |               |
-// :   arguments   :
-// |               |
-// +---------------+
-// |               |
-//
-//
-//
-// AFTER FRAME HAS BEEN SETUP for method interpretation the stack looks like:
-//
-// +---------------+ <--- sp
-// |               |
-// : reg save area :
-// |               |
-// +---------------+ <--- sp + 0x40
-// |               |
-// : extra 7 slots :      note: these slots are not really needed for the interpreter (fix later)
-// |               |
-// +---------------+ <--- sp + 0x5c
-// |               |
-// :               :
-// |               | <--- Lesp
-// +---------------+ <--- Lmonitors (fp - 0x18)
-// |   VM locals   |
-// +---------------+ <--- fp
-// |               |
-// : reg save area :
-// |               |
-// +---------------+ <--- fp + 0x40
-// |               |
-// : extra 7 slots :      note: these slots are not really needed for the interpreter (fix later)
-// |               |
-// +---------------+ <--- fp + 0x5c
-// |               |
-// :     free      :
-// |               |
-// +---------------+
-// |               |
-// : nonarg locals :
-// |               |
-// +---------------+
-// |               |
-// :   arguments   :
-// |               | <--- Llocals
-// +---------------+ <--- Gargs
-// |               |
-
 static int size_activation_helper(int callee_extra_locals, int max_stack, int monitor_size) {
 
   // Figure out the size of an interpreter frame (in words) given that we have a fully allocated
--- a/hotspot/src/cpu/sparc/vm/vm_version_sparc.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/sparc/vm/vm_version_sparc.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -26,6 +26,7 @@
 #include "asm/macroAssembler.inline.hpp"
 #include "memory/resourceArea.hpp"
 #include "runtime/java.hpp"
+#include "runtime/os.hpp"
 #include "runtime/stubCodeGenerator.hpp"
 #include "vm_version_sparc.hpp"
 
@@ -249,7 +250,7 @@
                (!has_hardware_fsmuld() ? ", no-fsmuld" : ""));
 
   // buf is started with ", " or is empty
-  _features_str = strdup(strlen(buf) > 2 ? buf + 2 : buf);
+  _features_str = os::strdup(strlen(buf) > 2 ? buf + 2 : buf);
 
   // There are three 64-bit SPARC families that do not overlap, e.g.,
   // both is_ultra3() and is_sparc64() cannot be true at the same time.
--- a/hotspot/src/cpu/x86/vm/cppInterpreterGenerator_x86.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/x86/vm/cppInterpreterGenerator_x86.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -27,21 +27,6 @@
 
  protected:
 
-#if 0
-  address generate_asm_interpreter_entry(bool synchronized);
-  address generate_native_entry(bool synchronized);
-  address generate_abstract_entry(void);
-  address generate_math_entry(AbstractInterpreter::MethodKind kind);
-  address generate_empty_entry(void);
-  address generate_accessor_entry(void);
-  address generate_Reference_get_entry(void);
-  void lock_method(void);
-  void generate_stack_overflow_check(void);
-
-  void generate_counter_incr(Label* overflow, Label* profile_method, Label* profile_method_continue);
-  void generate_counter_overflow(Label* do_continue);
-#endif
-
   void generate_more_monitors();
   void generate_deopt_handling();
   address generate_interpreter_frame_manager(bool synchronized); // C++ interpreter only
--- a/hotspot/src/cpu/x86/vm/cppInterpreter_x86.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/x86/vm/cppInterpreter_x86.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -66,9 +66,6 @@
 #define __ _masm->
 #define STATE(field_name) (Address(state, byte_offset_of(BytecodeInterpreter, field_name)))
 
-Label fast_accessor_slow_entry_path;  // fast accessor methods need to be able to jmp to unsynchronized
-                                      // c++ interpreter entry point this holds that entry point label.
-
 // default registers for state and sender_sp
 // state and sender_sp are the same on 32bit because we have no choice.
 // state could be rsi on 64bit but it is an arg reg and not callee save
@@ -660,7 +657,6 @@
   // generate_method_entry) so the guard should work for them too.
   //
 
-  // monitor entry size: see picture of stack set (generate_method_entry) and frame_i486.hpp
   const int entry_size    = frame::interpreter_frame_monitor_size() * wordSize;
 
   // total overhead size: entry_size + (saved rbp, thru expr stack bottom).
@@ -794,156 +790,6 @@
   __ lock_object(monitor);
 }
 
-// Call an accessor method (assuming it is resolved, otherwise drop into vanilla (slow path) entry
-
-address InterpreterGenerator::generate_accessor_entry(void) {
-
-  // rbx: Method*
-
-  // rsi/r13: senderSP must preserved for slow path, set SP to it on fast path
-
-  Label xreturn_path;
-
-  // do fastpath for resolved accessor methods
-  if (UseFastAccessorMethods) {
-
-    address entry_point = __ pc();
-
-    Label slow_path;
-    // If we need a safepoint check, generate full interpreter entry.
-    ExternalAddress state(SafepointSynchronize::address_of_state());
-    __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
-             SafepointSynchronize::_not_synchronized);
-
-    __ jcc(Assembler::notEqual, slow_path);
-    // ASM/C++ Interpreter
-    // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites thereof; parameter size = 1
-    // Note: We can only use this code if the getfield has been resolved
-    //       and if we don't have a null-pointer exception => check for
-    //       these conditions first and use slow path if necessary.
-    // rbx,: method
-    // rcx: receiver
-    __ movptr(rax, Address(rsp, wordSize));
-
-    // check if local 0 != NULL and read field
-    __ testptr(rax, rax);
-    __ jcc(Assembler::zero, slow_path);
-
-    // read first instruction word and extract bytecode @ 1 and index @ 2
-    __ movptr(rdx, Address(rbx, Method::const_offset()));
-    __ movptr(rdi, Address(rdx, ConstMethod::constants_offset()));
-    __ movl(rdx, Address(rdx, ConstMethod::codes_offset()));
-    // Shift codes right to get the index on the right.
-    // The bytecode fetched looks like <index><0xb4><0x2a>
-    __ shrl(rdx, 2*BitsPerByte);
-    __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size())));
-    __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes()));
-
-    // rax,: local 0
-    // rbx,: method
-    // rcx: receiver - do not destroy since it is needed for slow path!
-    // rcx: scratch
-    // rdx: constant pool cache index
-    // rdi: constant pool cache
-    // rsi/r13: sender sp
-
-    // check if getfield has been resolved and read constant pool cache entry
-    // check the validity of the cache entry by testing whether _indices field
-    // contains Bytecode::_getfield in b1 byte.
-    assert(in_words(ConstantPoolCacheEntry::size()) == 4, "adjust shift below");
-    __ movl(rcx,
-            Address(rdi,
-                    rdx,
-                    Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset()));
-    __ shrl(rcx, 2*BitsPerByte);
-    __ andl(rcx, 0xFF);
-    __ cmpl(rcx, Bytecodes::_getfield);
-    __ jcc(Assembler::notEqual, slow_path);
-
-    // Note: constant pool entry is not valid before bytecode is resolved
-    __ movptr(rcx,
-            Address(rdi,
-                    rdx,
-                    Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset()));
-    __ movl(rdx,
-            Address(rdi,
-                    rdx,
-                    Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset()));
-
-    Label notByte, notShort, notChar;
-    const Address field_address (rax, rcx, Address::times_1);
-
-    // Need to differentiate between igetfield, agetfield, bgetfield etc.
-    // because they are different sizes.
-    // Use the type from the constant pool cache
-    __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift);
-    // Make sure we don't need to mask rdx after the above shift
-    ConstantPoolCacheEntry::verify_tos_state_shift();
-#ifdef _LP64
-    Label notObj;
-    __ cmpl(rdx, atos);
-    __ jcc(Assembler::notEqual, notObj);
-    // atos
-    __ movptr(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notObj);
-#endif // _LP64
-    __ cmpl(rdx, btos);
-    __ jcc(Assembler::notEqual, notByte);
-    __ load_signed_byte(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notByte);
-    __ cmpl(rdx, stos);
-    __ jcc(Assembler::notEqual, notShort);
-    __ load_signed_short(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notShort);
-    __ cmpl(rdx, ctos);
-    __ jcc(Assembler::notEqual, notChar);
-    __ load_unsigned_short(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notChar);
-#ifdef ASSERT
-    Label okay;
-#ifndef _LP64
-    __ cmpl(rdx, atos);
-    __ jcc(Assembler::equal, okay);
-#endif // _LP64
-    __ cmpl(rdx, itos);
-    __ jcc(Assembler::equal, okay);
-    __ stop("what type is this?");
-    __ bind(okay);
-#endif // ASSERT
-    // All the rest are a 32 bit wordsize
-    __ movl(rax, field_address);
-
-    __ bind(xreturn_path);
-
-    // _ireturn/_areturn
-    __ pop(rdi);                               // get return address
-    __ mov(rsp, sender_sp_on_entry);           // set sp to sender sp
-    __ jmp(rdi);
-
-    // generate a vanilla interpreter entry as the slow path
-    __ bind(slow_path);
-    // We will enter c++ interpreter looking like it was
-    // called by the call_stub this will cause it to return
-    // a tosca result to the invoker which might have been
-    // the c++ interpreter itself.
-
-    __ jmp(fast_accessor_slow_entry_path);
-    return entry_point;
-
-  } else {
-    return NULL;
-  }
-
-}
-
 address InterpreterGenerator::generate_Reference_get_entry(void) {
 #if INCLUDE_ALL_GCS
   if (UseG1GC) {
@@ -961,7 +807,7 @@
 
   // If G1 is not enabled then attempt to go through the accessor entry point
   // Reference.get is an accessor
-  return generate_accessor_entry();
+  return generate_jump_to_normal_entry();
 }
 
 //
@@ -1670,10 +1516,6 @@
 
   address entry_point = __ pc();
 
-  // Fast accessor methods share this entry point.
-  // This works because frame manager is in the same codelet
-  if (UseFastAccessorMethods && !synchronized) __ bind(fast_accessor_slow_entry_path);
-
   Label dispatch_entry_2;
   __ movptr(rcx, sender_sp_on_entry);
   __ movptr(state, (int32_t)NULL_WORD);                              // no current activation
@@ -2212,40 +2054,6 @@
   return entry_point;
 }
 
-address AbstractInterpreterGenerator::generate_method_entry(AbstractInterpreter::MethodKind kind) {
-  // determine code generation flags
-  bool synchronized = false;
-  address entry_point = NULL;
-
-  switch (kind) {
-    case Interpreter::zerolocals             :                                                                             break;
-    case Interpreter::zerolocals_synchronized: synchronized = true;                                                        break;
-    case Interpreter::native                 : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false);  break;
-    case Interpreter::native_synchronized    : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true);   break;
-    case Interpreter::empty                  : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry();        break;
-    case Interpreter::accessor               : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry();     break;
-    case Interpreter::abstract               : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry();     break;
-
-    case Interpreter::java_lang_math_sin     : // fall thru
-    case Interpreter::java_lang_math_cos     : // fall thru
-    case Interpreter::java_lang_math_tan     : // fall thru
-    case Interpreter::java_lang_math_abs     : // fall thru
-    case Interpreter::java_lang_math_log     : // fall thru
-    case Interpreter::java_lang_math_log10   : // fall thru
-    case Interpreter::java_lang_math_sqrt    : // fall thru
-    case Interpreter::java_lang_math_pow     : // fall thru
-    case Interpreter::java_lang_math_exp     : // fall thru
-      entry_point = ((InterpreterGenerator*)this)->generate_math_entry(kind);     break;
-    case Interpreter::java_lang_ref_reference_get
-                                             : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break;
-    default                                  : ShouldNotReachHere();                                                       break;
-  }
-
-  if (entry_point) return entry_point;
-
-  return ((InterpreterGenerator*)this)->generate_normal_entry(synchronized);
-
-}
 
 InterpreterGenerator::InterpreterGenerator(StubQueue* code)
  : CppInterpreterGenerator(code) {
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/cpu/x86/vm/interpreterGenerator_x86.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "asm/macroAssembler.hpp"
+#include "interpreter/interpreter.hpp"
+#include "interpreter/interpreterGenerator.hpp"
+#include "interpreter/interpreterRuntime.hpp"
+#include "interpreter/interp_masm.hpp"
+
+#define __ _masm->
+
+// Jump into normal path for accessor and empty entry to jump to normal entry
+// The "fast" optimization don't update compilation count therefore can disable inlining
+// for these functions that should be inlined.
+address InterpreterGenerator::generate_jump_to_normal_entry(void) {
+  address entry_point = __ pc();
+
+  assert(Interpreter::entry_for_kind(Interpreter::zerolocals) != NULL, "should already be generated");
+  __ jump(RuntimeAddress(Interpreter::entry_for_kind(Interpreter::zerolocals)));
+  return entry_point;
+}
+
+// Abstract method entry
+// Attempt to execute abstract method. Throw exception
+address InterpreterGenerator::generate_abstract_entry(void) {
+
+  address entry_point = __ pc();
+
+  // abstract method entry
+
+#ifndef CC_INTERP
+  //  pop return address, reset last_sp to NULL
+  __ empty_expression_stack();
+  __ restore_bcp();      // rsi must be correct for exception handler   (was destroyed)
+  __ restore_locals();   // make sure locals pointer is correct as well (was destroyed)
+#endif
+
+  // throw exception
+  __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError));
+  // the call_VM checks for exception, so we should never return here.
+  __ should_not_reach_here();
+
+  return entry_point;
+}
--- a/hotspot/src/cpu/x86/vm/interpreterGenerator_x86.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/x86/vm/interpreterGenerator_x86.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -36,8 +36,9 @@
   address generate_native_entry(bool synchronized);
   address generate_abstract_entry(void);
   address generate_math_entry(AbstractInterpreter::MethodKind kind);
-  address generate_empty_entry(void);
-  address generate_accessor_entry(void);
+  address generate_jump_to_normal_entry(void);
+  address generate_accessor_entry(void) { return generate_jump_to_normal_entry(); }
+  address generate_empty_entry(void) { return generate_jump_to_normal_entry(); }
   address generate_Reference_get_entry();
   address generate_CRC32_update_entry();
   address generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind);
--- a/hotspot/src/cpu/x86/vm/interpreter_x86_32.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/x86/vm/interpreter_x86_32.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -67,45 +67,6 @@
 }
 
 
-//
-// Various method entries (that c++ and asm interpreter agree upon)
-//------------------------------------------------------------------------------------------------------------------------
-//
-//
-
-// Empty method, generate a very fast return.
-
-address InterpreterGenerator::generate_empty_entry(void) {
-
-  // rbx,: Method*
-  // rcx: receiver (unused)
-  // rsi: previous interpreter state (C++ interpreter) must preserve
-  // rsi: sender sp must set sp to this value on return
-
-  if (!UseFastEmptyMethods) return NULL;
-
-  address entry_point = __ pc();
-
-  // If we need a safepoint check, generate full interpreter entry.
-  Label slow_path;
-  ExternalAddress state(SafepointSynchronize::address_of_state());
-  __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
-           SafepointSynchronize::_not_synchronized);
-  __ jcc(Assembler::notEqual, slow_path);
-
-  // do nothing for empty methods (do not even increment invocation counter)
-  // Code: _return
-  // _return
-  // return w/o popping parameters
-  __ pop(rax);
-  __ mov(rsp, rsi);
-  __ jmp(rax);
-
-  __ bind(slow_path);
-  (void) generate_normal_entry(false);
-  return entry_point;
-}
-
 address InterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) {
 
   // rbx,: Method*
@@ -216,36 +177,6 @@
 }
 
 
-// Abstract method entry
-// Attempt to execute abstract method. Throw exception
-address InterpreterGenerator::generate_abstract_entry(void) {
-
-  // rbx,: Method*
-  // rcx: receiver (unused)
-  // rsi: previous interpreter state (C++ interpreter) must preserve
-
-  // rsi: sender SP
-
-  address entry_point = __ pc();
-
-  // abstract method entry
-
-#ifndef CC_INTERP
-  //  pop return address, reset last_sp to NULL
-  __ empty_expression_stack();
-  __ restore_bcp();      // rsi must be correct for exception handler   (was destroyed)
-  __ restore_locals();   // make sure locals pointer is correct as well (was destroyed)
-#endif
-
-  // throw exception
-  __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError));
-  // the call_VM checks for exception, so we should never return here.
-  __ should_not_reach_here();
-
-  return entry_point;
-}
-
-
 void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) {
 
   // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in
--- a/hotspot/src/cpu/x86/vm/interpreter_x86_64.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/x86/vm/interpreter_x86_64.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -301,66 +301,6 @@
   return entry_point;
 }
 
-
-// Abstract method entry
-// Attempt to execute abstract method. Throw exception
-address InterpreterGenerator::generate_abstract_entry(void) {
-  // rbx: Method*
-  // r13: sender SP
-
-  address entry_point = __ pc();
-
-  // abstract method entry
-
-#ifndef CC_INTERP
-  //  pop return address, reset last_sp to NULL
-  __ empty_expression_stack();
-  __ restore_bcp();      // rsi must be correct for exception handler   (was destroyed)
-  __ restore_locals();   // make sure locals pointer is correct as well (was destroyed)
-#endif
-
-  // throw exception
-  __ call_VM(noreg, CAST_FROM_FN_PTR(address,
-                             InterpreterRuntime::throw_AbstractMethodError));
-  // the call_VM checks for exception, so we should never return here.
-  __ should_not_reach_here();
-
-  return entry_point;
-}
-
-
-// Empty method, generate a very fast return.
-
-address InterpreterGenerator::generate_empty_entry(void) {
-  // rbx: Method*
-  // r13: sender sp must set sp to this value on return
-
-  if (!UseFastEmptyMethods) {
-    return NULL;
-  }
-
-  address entry_point = __ pc();
-
-  // If we need a safepoint check, generate full interpreter entry.
-  Label slow_path;
-  __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
-           SafepointSynchronize::_not_synchronized);
-  __ jcc(Assembler::notEqual, slow_path);
-
-  // do nothing for empty methods (do not even increment invocation counter)
-  // Code: _return
-  // _return
-  // return w/o popping parameters
-  __ pop(rax);
-  __ mov(rsp, r13);
-  __ jmp(rax);
-
-  __ bind(slow_path);
-  (void) generate_normal_entry(false);
-  return entry_point;
-
-}
-
 void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) {
 
   // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in
--- a/hotspot/src/cpu/x86/vm/templateInterpreter_x86.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/x86/vm/templateInterpreter_x86.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -38,7 +38,7 @@
                                          int callee_locals,
                                          bool is_top_frame) {
   // Note: This calculation must exactly parallel the frame setup
-  // in AbstractInterpreterGenerator::generate_method_entry.
+  // in InterpreterGenerator::generate_fixed_frame.
 
   // fixed size of an interpreter frame:
   int overhead = frame::sender_sp_offset -
--- a/hotspot/src/cpu/x86/vm/templateInterpreter_x86_32.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/x86/vm/templateInterpreter_x86_32.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -468,10 +468,10 @@
   // rax,
 
   // NOTE:  since the additional locals are also always pushed (wasn't obvious in
-  // generate_method_entry) so the guard should work for them too.
+  // generate_fixed_frame) so the guard should work for them too.
   //
 
-  // monitor entry size: see picture of stack set (generate_method_entry) and frame_x86.hpp
+  // monitor entry size: see picture of stack in frame_x86.hpp
   const int entry_size    = frame::interpreter_frame_monitor_size() * wordSize;
 
   // total overhead size: entry_size + (saved rbp, thru expr stack bottom).
@@ -633,145 +633,6 @@
   __ movptr(Address(rsp, 0), rsp);                    // set expression stack bottom
 }
 
-// End of helpers
-
-//
-// Various method entries
-//------------------------------------------------------------------------------------------------------------------------
-//
-//
-
-// Call an accessor method (assuming it is resolved, otherwise drop into vanilla (slow path) entry
-
-address InterpreterGenerator::generate_accessor_entry(void) {
-
-  // rbx,: Method*
-  // rcx: receiver (preserve for slow entry into asm interpreter)
-
-  // rsi: senderSP must preserved for slow path, set SP to it on fast path
-
-  address entry_point = __ pc();
-  Label xreturn_path;
-
-  // do fastpath for resolved accessor methods
-  if (UseFastAccessorMethods) {
-    Label slow_path;
-    // If we need a safepoint check, generate full interpreter entry.
-    ExternalAddress state(SafepointSynchronize::address_of_state());
-    __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
-             SafepointSynchronize::_not_synchronized);
-
-    __ jcc(Assembler::notEqual, slow_path);
-    // ASM/C++ Interpreter
-    // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites thereof; parameter size = 1
-    // Note: We can only use this code if the getfield has been resolved
-    //       and if we don't have a null-pointer exception => check for
-    //       these conditions first and use slow path if necessary.
-    // rbx,: method
-    // rcx: receiver
-    __ movptr(rax, Address(rsp, wordSize));
-
-    // check if local 0 != NULL and read field
-    __ testptr(rax, rax);
-    __ jcc(Assembler::zero, slow_path);
-
-    // read first instruction word and extract bytecode @ 1 and index @ 2
-    __ movptr(rdx, Address(rbx, Method::const_offset()));
-    __ movptr(rdi, Address(rdx, ConstMethod::constants_offset()));
-    __ movl(rdx, Address(rdx, ConstMethod::codes_offset()));
-    // Shift codes right to get the index on the right.
-    // The bytecode fetched looks like <index><0xb4><0x2a>
-    __ shrl(rdx, 2*BitsPerByte);
-    __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size())));
-    __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes()));
-
-    // rax,: local 0
-    // rbx,: method
-    // rcx: receiver - do not destroy since it is needed for slow path!
-    // rcx: scratch
-    // rdx: constant pool cache index
-    // rdi: constant pool cache
-    // rsi: sender sp
-
-    // check if getfield has been resolved and read constant pool cache entry
-    // check the validity of the cache entry by testing whether _indices field
-    // contains Bytecode::_getfield in b1 byte.
-    assert(in_words(ConstantPoolCacheEntry::size()) == 4, "adjust shift below");
-    __ movl(rcx,
-            Address(rdi,
-                    rdx,
-                    Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset()));
-    __ shrl(rcx, 2*BitsPerByte);
-    __ andl(rcx, 0xFF);
-    __ cmpl(rcx, Bytecodes::_getfield);
-    __ jcc(Assembler::notEqual, slow_path);
-
-    // Note: constant pool entry is not valid before bytecode is resolved
-    __ movptr(rcx,
-              Address(rdi,
-                      rdx,
-                      Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset()));
-    __ movl(rdx,
-            Address(rdi,
-                    rdx,
-                    Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset()));
-
-    Label notByte, notShort, notChar;
-    const Address field_address (rax, rcx, Address::times_1);
-
-    // Need to differentiate between igetfield, agetfield, bgetfield etc.
-    // because they are different sizes.
-    // Use the type from the constant pool cache
-    __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift);
-    // Make sure we don't need to mask rdx after the above shift
-    ConstantPoolCacheEntry::verify_tos_state_shift();
-    __ cmpl(rdx, btos);
-    __ jcc(Assembler::notEqual, notByte);
-    __ load_signed_byte(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notByte);
-    __ cmpl(rdx, stos);
-    __ jcc(Assembler::notEqual, notShort);
-    __ load_signed_short(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notShort);
-    __ cmpl(rdx, ctos);
-    __ jcc(Assembler::notEqual, notChar);
-    __ load_unsigned_short(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notChar);
-#ifdef ASSERT
-    Label okay;
-    __ cmpl(rdx, atos);
-    __ jcc(Assembler::equal, okay);
-    __ cmpl(rdx, itos);
-    __ jcc(Assembler::equal, okay);
-    __ stop("what type is this?");
-    __ bind(okay);
-#endif // ASSERT
-    // All the rest are a 32 bit wordsize
-    // This is ok for now. Since fast accessors should be going away
-    __ movptr(rax, field_address);
-
-    __ bind(xreturn_path);
-
-    // _ireturn/_areturn
-    __ pop(rdi);                               // get return address
-    __ mov(rsp, rsi);                          // set sp to sender sp
-    __ jmp(rdi);
-
-    // generate a vanilla interpreter entry as the slow path
-    __ bind(slow_path);
-
-    (void) generate_normal_entry(false);
-    return entry_point;
-  }
-  return NULL;
-
-}
 
 // Method entry for java.lang.ref.Reference.get.
 address InterpreterGenerator::generate_Reference_get_entry(void) {
@@ -862,7 +723,7 @@
 
   // If G1 is not enabled then attempt to go through the accessor entry point
   // Reference.get is an accessor
-  return generate_accessor_entry();
+  return generate_jump_to_normal_entry();
 }
 
 /**
@@ -1557,100 +1418,6 @@
   return entry_point;
 }
 
-//------------------------------------------------------------------------------------------------------------------------
-// Entry points
-//
-// Here we generate the various kind of entries into the interpreter.
-// The two main entry type are generic bytecode methods and native call method.
-// These both come in synchronized and non-synchronized versions but the
-// frame layout they create is very similar. The other method entry
-// types are really just special purpose entries that are really entry
-// and interpretation all in one. These are for trivial methods like
-// accessor, empty, or special math methods.
-//
-// When control flow reaches any of the entry types for the interpreter
-// the following holds ->
-//
-// Arguments:
-//
-// rbx,: Method*
-// rcx: receiver
-//
-//
-// Stack layout immediately at entry
-//
-// [ return address     ] <--- rsp
-// [ parameter n        ]
-//   ...
-// [ parameter 1        ]
-// [ expression stack   ] (caller's java expression stack)
-
-// Assuming that we don't go to one of the trivial specialized
-// entries the stack will look like below when we are ready to execute
-// the first bytecode (or call the native routine). The register usage
-// will be as the template based interpreter expects (see interpreter_x86.hpp).
-//
-// local variables follow incoming parameters immediately; i.e.
-// the return address is moved to the end of the locals).
-//
-// [ monitor entry      ] <--- rsp
-//   ...
-// [ monitor entry      ]
-// [ expr. stack bottom ]
-// [ saved rsi          ]
-// [ current rdi        ]
-// [ Method*            ]
-// [ saved rbp,          ] <--- rbp,
-// [ return address     ]
-// [ local variable m   ]
-//   ...
-// [ local variable 1   ]
-// [ parameter n        ]
-//   ...
-// [ parameter 1        ] <--- rdi
-
-address AbstractInterpreterGenerator::generate_method_entry(AbstractInterpreter::MethodKind kind) {
-  // determine code generation flags
-  bool synchronized = false;
-  address entry_point = NULL;
-  InterpreterGenerator* ig_this = (InterpreterGenerator*)this;
-
-  switch (kind) {
-    case Interpreter::zerolocals             :                                                       break;
-    case Interpreter::zerolocals_synchronized: synchronized = true;                                  break;
-    case Interpreter::native                 : entry_point = ig_this->generate_native_entry(false);  break;
-    case Interpreter::native_synchronized    : entry_point = ig_this->generate_native_entry(true);   break;
-    case Interpreter::empty                  : entry_point = ig_this->generate_empty_entry();        break;
-    case Interpreter::accessor               : entry_point = ig_this->generate_accessor_entry();     break;
-    case Interpreter::abstract               : entry_point = ig_this->generate_abstract_entry();     break;
-
-    case Interpreter::java_lang_math_sin     : // fall thru
-    case Interpreter::java_lang_math_cos     : // fall thru
-    case Interpreter::java_lang_math_tan     : // fall thru
-    case Interpreter::java_lang_math_abs     : // fall thru
-    case Interpreter::java_lang_math_log     : // fall thru
-    case Interpreter::java_lang_math_log10   : // fall thru
-    case Interpreter::java_lang_math_sqrt    : // fall thru
-    case Interpreter::java_lang_math_pow     : // fall thru
-    case Interpreter::java_lang_math_exp     : entry_point = ig_this->generate_math_entry(kind);      break;
-    case Interpreter::java_lang_ref_reference_get
-                                             : entry_point = ig_this->generate_Reference_get_entry(); break;
-    case Interpreter::java_util_zip_CRC32_update
-                                             : entry_point = ig_this->generate_CRC32_update_entry();  break;
-    case Interpreter::java_util_zip_CRC32_updateBytes
-                                             : // fall thru
-    case Interpreter::java_util_zip_CRC32_updateByteBuffer
-                                             : entry_point = ig_this->generate_CRC32_updateBytes_entry(kind); break;
-    default:
-      fatal(err_msg("unexpected method kind: %d", kind));
-      break;
-  }
-
-  if (entry_point) return entry_point;
-
-  return ig_this->generate_normal_entry(synchronized);
-
-}
 
 // These should never be compiled since the interpreter will prefer
 // the compiled version to the intrinsic version.
--- a/hotspot/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -400,7 +400,7 @@
 // page mechanism will work for that.
 //
 // NOTE: Since the additional locals are also always pushed (wasn't
-// obvious in generate_method_entry) so the guard should work for them
+// obvious in generate_fixed_frame) so the guard should work for them
 // too.
 //
 // Args:
@@ -411,8 +411,7 @@
 //      rax
 void InterpreterGenerator::generate_stack_overflow_check(void) {
 
-  // monitor entry size: see picture of stack set
-  // (generate_method_entry) and frame_amd64.hpp
+  // monitor entry size: see picture of stack in frame_x86.hpp
   const int entry_size = frame::interpreter_frame_monitor_size() * wordSize;
 
   // total overhead size: entry_size + (saved rbp through expr stack
@@ -600,153 +599,6 @@
 
 // End of helpers
 
-// Various method entries
-//------------------------------------------------------------------------------------------------------------------------
-//
-//
-
-// Call an accessor method (assuming it is resolved, otherwise drop
-// into vanilla (slow path) entry
-address InterpreterGenerator::generate_accessor_entry(void) {
-  // rbx: Method*
-
-  // r13: senderSP must preserver for slow path, set SP to it on fast path
-
-  address entry_point = __ pc();
-  Label xreturn_path;
-
-  // do fastpath for resolved accessor methods
-  if (UseFastAccessorMethods) {
-    // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites
-    //       thereof; parameter size = 1
-    // Note: We can only use this code if the getfield has been resolved
-    //       and if we don't have a null-pointer exception => check for
-    //       these conditions first and use slow path if necessary.
-    Label slow_path;
-    // If we need a safepoint check, generate full interpreter entry.
-    __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
-             SafepointSynchronize::_not_synchronized);
-
-    __ jcc(Assembler::notEqual, slow_path);
-    // rbx: method
-    __ movptr(rax, Address(rsp, wordSize));
-
-    // check if local 0 != NULL and read field
-    __ testptr(rax, rax);
-    __ jcc(Assembler::zero, slow_path);
-
-    // read first instruction word and extract bytecode @ 1 and index @ 2
-    __ movptr(rdx, Address(rbx, Method::const_offset()));
-    __ movptr(rdi, Address(rdx, ConstMethod::constants_offset()));
-    __ movl(rdx, Address(rdx, ConstMethod::codes_offset()));
-    // Shift codes right to get the index on the right.
-    // The bytecode fetched looks like <index><0xb4><0x2a>
-    __ shrl(rdx, 2 * BitsPerByte);
-    __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size())));
-    __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes()));
-
-    // rax: local 0
-    // rbx: method
-    // rdx: constant pool cache index
-    // rdi: constant pool cache
-
-    // check if getfield has been resolved and read constant pool cache entry
-    // check the validity of the cache entry by testing whether _indices field
-    // contains Bytecode::_getfield in b1 byte.
-    assert(in_words(ConstantPoolCacheEntry::size()) == 4,
-           "adjust shift below");
-    __ movl(rcx,
-            Address(rdi,
-                    rdx,
-                    Address::times_8,
-                    ConstantPoolCache::base_offset() +
-                    ConstantPoolCacheEntry::indices_offset()));
-    __ shrl(rcx, 2 * BitsPerByte);
-    __ andl(rcx, 0xFF);
-    __ cmpl(rcx, Bytecodes::_getfield);
-    __ jcc(Assembler::notEqual, slow_path);
-
-    // Note: constant pool entry is not valid before bytecode is resolved
-    __ movptr(rcx,
-              Address(rdi,
-                      rdx,
-                      Address::times_8,
-                      ConstantPoolCache::base_offset() +
-                      ConstantPoolCacheEntry::f2_offset()));
-    // edx: flags
-    __ movl(rdx,
-            Address(rdi,
-                    rdx,
-                    Address::times_8,
-                    ConstantPoolCache::base_offset() +
-                    ConstantPoolCacheEntry::flags_offset()));
-
-    Label notObj, notInt, notByte, notShort;
-    const Address field_address(rax, rcx, Address::times_1);
-
-    // Need to differentiate between igetfield, agetfield, bgetfield etc.
-    // because they are different sizes.
-    // Use the type from the constant pool cache
-    __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift);
-    // Make sure we don't need to mask edx after the above shift
-    ConstantPoolCacheEntry::verify_tos_state_shift();
-
-    __ cmpl(rdx, atos);
-    __ jcc(Assembler::notEqual, notObj);
-    // atos
-    __ load_heap_oop(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notObj);
-    __ cmpl(rdx, itos);
-    __ jcc(Assembler::notEqual, notInt);
-    // itos
-    __ movl(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notInt);
-    __ cmpl(rdx, btos);
-    __ jcc(Assembler::notEqual, notByte);
-    // btos
-    __ load_signed_byte(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notByte);
-    __ cmpl(rdx, stos);
-    __ jcc(Assembler::notEqual, notShort);
-    // stos
-    __ load_signed_short(rax, field_address);
-    __ jmp(xreturn_path);
-
-    __ bind(notShort);
-#ifdef ASSERT
-    Label okay;
-    __ cmpl(rdx, ctos);
-    __ jcc(Assembler::equal, okay);
-    __ stop("what type is this?");
-    __ bind(okay);
-#endif
-    // ctos
-    __ load_unsigned_short(rax, field_address);
-
-    __ bind(xreturn_path);
-
-    // _ireturn/_areturn
-    __ pop(rdi);
-    __ mov(rsp, r13);
-    __ jmp(rdi);
-    __ ret(0);
-
-    // generate a vanilla interpreter entry as the slow path
-    __ bind(slow_path);
-    (void) generate_normal_entry(false);
-  } else {
-    (void) generate_normal_entry(false);
-  }
-
-  return entry_point;
-}
-
 // Method entry for java.lang.ref.Reference.get.
 address InterpreterGenerator::generate_Reference_get_entry(void) {
 #if INCLUDE_ALL_GCS
@@ -773,8 +625,6 @@
   //   and so we don't need to call the G1 pre-barrier. Thus we can use the
   //   regular method entry code to generate the NPE.
   //
-  // This code is based on generate_accessor_enty.
-  //
   // rbx: Method*
 
   // r13: senderSP must preserve for slow path, set SP to it on fast path
@@ -832,7 +682,7 @@
 
   // If G1 is not enabled then attempt to go through the accessor entry point
   // Reference.get is an accessor
-  return generate_accessor_entry();
+  return generate_jump_to_normal_entry();
 }
 
 /**
@@ -1566,100 +1416,6 @@
   return entry_point;
 }
 
-// Entry points
-//
-// Here we generate the various kind of entries into the interpreter.
-// The two main entry type are generic bytecode methods and native
-// call method.  These both come in synchronized and non-synchronized
-// versions but the frame layout they create is very similar. The
-// other method entry types are really just special purpose entries
-// that are really entry and interpretation all in one. These are for
-// trivial methods like accessor, empty, or special math methods.
-//
-// When control flow reaches any of the entry types for the interpreter
-// the following holds ->
-//
-// Arguments:
-//
-// rbx: Method*
-//
-// Stack layout immediately at entry
-//
-// [ return address     ] <--- rsp
-// [ parameter n        ]
-//   ...
-// [ parameter 1        ]
-// [ expression stack   ] (caller's java expression stack)
-
-// Assuming that we don't go to one of the trivial specialized entries
-// the stack will look like below when we are ready to execute the
-// first bytecode (or call the native routine). The register usage
-// will be as the template based interpreter expects (see
-// interpreter_amd64.hpp).
-//
-// local variables follow incoming parameters immediately; i.e.
-// the return address is moved to the end of the locals).
-//
-// [ monitor entry      ] <--- rsp
-//   ...
-// [ monitor entry      ]
-// [ expr. stack bottom ]
-// [ saved r13          ]
-// [ current r14        ]
-// [ Method*            ]
-// [ saved ebp          ] <--- rbp
-// [ return address     ]
-// [ local variable m   ]
-//   ...
-// [ local variable 1   ]
-// [ parameter n        ]
-//   ...
-// [ parameter 1        ] <--- r14
-
-address AbstractInterpreterGenerator::generate_method_entry(
-                                        AbstractInterpreter::MethodKind kind) {
-  // determine code generation flags
-  bool synchronized = false;
-  address entry_point = NULL;
-  InterpreterGenerator* ig_this = (InterpreterGenerator*)this;
-
-  switch (kind) {
-  case Interpreter::zerolocals             :                                                      break;
-  case Interpreter::zerolocals_synchronized: synchronized = true;                                 break;
-  case Interpreter::native                 : entry_point = ig_this->generate_native_entry(false); break;
-  case Interpreter::native_synchronized    : entry_point = ig_this->generate_native_entry(true);  break;
-  case Interpreter::empty                  : entry_point = ig_this->generate_empty_entry();       break;
-  case Interpreter::accessor               : entry_point = ig_this->generate_accessor_entry();    break;
-  case Interpreter::abstract               : entry_point = ig_this->generate_abstract_entry();    break;
-
-  case Interpreter::java_lang_math_sin     : // fall thru
-  case Interpreter::java_lang_math_cos     : // fall thru
-  case Interpreter::java_lang_math_tan     : // fall thru
-  case Interpreter::java_lang_math_abs     : // fall thru
-  case Interpreter::java_lang_math_log     : // fall thru
-  case Interpreter::java_lang_math_log10   : // fall thru
-  case Interpreter::java_lang_math_sqrt    : // fall thru
-  case Interpreter::java_lang_math_pow     : // fall thru
-  case Interpreter::java_lang_math_exp     : entry_point = ig_this->generate_math_entry(kind);      break;
-  case Interpreter::java_lang_ref_reference_get
-                                           : entry_point = ig_this->generate_Reference_get_entry(); break;
-  case Interpreter::java_util_zip_CRC32_update
-                                           : entry_point = ig_this->generate_CRC32_update_entry();  break;
-  case Interpreter::java_util_zip_CRC32_updateBytes
-                                           : // fall thru
-  case Interpreter::java_util_zip_CRC32_updateByteBuffer
-                                           : entry_point = ig_this->generate_CRC32_updateBytes_entry(kind); break;
-  default:
-    fatal(err_msg("unexpected method kind: %d", kind));
-    break;
-  }
-
-  if (entry_point) {
-    return entry_point;
-  }
-
-  return ig_this->generate_normal_entry(synchronized);
-}
 
 // These should never be compiled since the interpreter will prefer
 // the compiled version to the intrinsic version.
--- a/hotspot/src/cpu/x86/vm/vm_version_x86.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/x86/vm/vm_version_x86.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -27,6 +27,7 @@
 #include "asm/macroAssembler.inline.hpp"
 #include "memory/resourceArea.hpp"
 #include "runtime/java.hpp"
+#include "runtime/os.hpp"
 #include "runtime/stubCodeGenerator.hpp"
 #include "vm_version_x86.hpp"
 
@@ -514,7 +515,7 @@
                (supports_tscinv() ? ", tscinv": ""),
                (supports_bmi1() ? ", bmi1" : ""),
                (supports_bmi2() ? ", bmi2" : ""));
-  _features_str = strdup(buf);
+  _features_str = os::strdup(buf);
 
   // UseSSE is set to the smaller of what hardware supports and what
   // the command line requires.  I.e., you cannot set UseSSE to 2 on
--- a/hotspot/src/cpu/zero/vm/cppInterpreter_zero.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/zero/vm/cppInterpreter_zero.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -831,60 +831,6 @@
   return generate_entry((address) CppInterpreter::normal_entry);
 }
 
-address AbstractInterpreterGenerator::generate_method_entry(
-    AbstractInterpreter::MethodKind kind) {
-  address entry_point = NULL;
-
-  switch (kind) {
-  case Interpreter::zerolocals:
-  case Interpreter::zerolocals_synchronized:
-    break;
-
-  case Interpreter::native:
-    entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false);
-    break;
-
-  case Interpreter::native_synchronized:
-    entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false);
-    break;
-
-  case Interpreter::empty:
-    entry_point = ((InterpreterGenerator*) this)->generate_empty_entry();
-    break;
-
-  case Interpreter::accessor:
-    entry_point = ((InterpreterGenerator*) this)->generate_accessor_entry();
-    break;
-
-  case Interpreter::abstract:
-    entry_point = ((InterpreterGenerator*) this)->generate_abstract_entry();
-    break;
-
-  case Interpreter::java_lang_math_sin:
-  case Interpreter::java_lang_math_cos:
-  case Interpreter::java_lang_math_tan:
-  case Interpreter::java_lang_math_abs:
-  case Interpreter::java_lang_math_log:
-  case Interpreter::java_lang_math_log10:
-  case Interpreter::java_lang_math_sqrt:
-  case Interpreter::java_lang_math_pow:
-  case Interpreter::java_lang_math_exp:
-    entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind);
-    break;
-
-  case Interpreter::java_lang_ref_reference_get:
-    entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry();
-    break;
-
-  default:
-    ShouldNotReachHere();
-  }
-
-  if (entry_point == NULL)
-    entry_point = ((InterpreterGenerator*) this)->generate_normal_entry(false);
-
-  return entry_point;
-}
 
 InterpreterGenerator::InterpreterGenerator(StubQueue* code)
  : CppInterpreterGenerator(code) {
--- a/hotspot/src/cpu/zero/vm/globals_zero.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/zero/vm/globals_zero.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -61,6 +61,12 @@
 
 define_pd_global(uintx, TypeProfileLevel, 0);
 
-#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct)
+#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct)  \
+  product(bool, UseFastEmptyMethods, true,                                  \
+          "Use fast method entry code for empty methods")                   \
+                                                                            \
+  product(bool, UseFastAccessorMethods, true,                               \
+          "Use fast method entry code for accessor methods")                \
+                                                                            \
 
 #endif // CPU_ZERO_VM_GLOBALS_ZERO_HPP
--- a/hotspot/src/cpu/zero/vm/interpreterGenerator_zero.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/cpu/zero/vm/interpreterGenerator_zero.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2007 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -39,4 +39,7 @@
   address generate_accessor_entry();
   address generate_Reference_get_entry();
 
+  // Not supported
+  address generate_CRC32_update_entry() { return NULL; }
+  address generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) { return NULL; }
 #endif // CPU_ZERO_VM_INTERPRETERGENERATOR_ZERO_HPP
--- a/hotspot/src/os/aix/vm/os_aix.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/aix/vm/os_aix.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -58,6 +58,7 @@
 #include "runtime/mutexLocker.hpp"
 #include "runtime/objectMonitor.hpp"
 #include "runtime/orderAccess.inline.hpp"
+#include "runtime/os.hpp"
 #include "runtime/osThread.hpp"
 #include "runtime/perfMemory.hpp"
 #include "runtime/sharedRuntime.hpp"
@@ -378,10 +379,10 @@
   // default should be 4K.
   size_t data_page_size = SIZE_4K;
   {
-    void* p = ::malloc(SIZE_16M);
+    void* p = os::malloc(SIZE_16M, mtInternal);
     guarantee(p != NULL, "malloc failed");
     data_page_size = os::Aix::query_pagesize(p);
-    ::free(p);
+    os::free(p);
   }
 
   // query default shm page size (LDR_CNTRL SHMPSIZE)
--- a/hotspot/src/os/aix/vm/porting_aix.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/aix/vm/porting_aix.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -24,6 +24,8 @@
 
 #include "asm/assembler.hpp"
 #include "memory/allocation.hpp"
+#include "memory/allocation.inline.hpp"
+#include "runtime/os.hpp"
 #include "loadlib_aix.hpp"
 #include "porting_aix.hpp"
 #include "utilities/debug.hpp"
@@ -83,7 +85,7 @@
     while (n) {
       node* p = n;
       n = n->next;
-      free(p->v);
+      os::free(p->v);
       delete p;
     }
   }
@@ -95,7 +97,7 @@
       }
     }
     node* p = new node;
-    p->v = strdup(s);
+    p->v = os::strdup_check_oom(s);
     p->next = first;
     first = p;
     return p->v;
--- a/hotspot/src/os/bsd/vm/os_bsd.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/bsd/vm/os_bsd.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -2439,23 +2439,25 @@
   }
 
   // The memory is committed
-  MemTracker::record_virtual_memory_reserve_and_commit((address)addr, bytes, mtNone, CALLER_PC);
+  MemTracker::record_virtual_memory_reserve_and_commit((address)addr, bytes, CALLER_PC);
 
   return addr;
 }
 
 bool os::release_memory_special(char* base, size_t bytes) {
-  MemTracker::Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
-  // detaching the SHM segment will also delete it, see reserve_memory_special()
-  int rslt = shmdt(base);
-  if (rslt == 0) {
-    tkr.record((address)base, bytes);
-    return true;
+  if (MemTracker::tracking_level() > NMT_minimal) {
+    Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
+    // detaching the SHM segment will also delete it, see reserve_memory_special()
+    int rslt = shmdt(base);
+    if (rslt == 0) {
+      tkr.record((address)base, bytes);
+      return true;
+    } else {
+      return false;
+    }
   } else {
-    tkr.discard();
-    return false;
+    return shmdt(base) == 0;
   }
-
 }
 
 size_t os::large_page_size() {
--- a/hotspot/src/os/bsd/vm/perfMemory_bsd.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/bsd/vm/perfMemory_bsd.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -753,7 +753,7 @@
   (void)::memset((void*) mapAddress, 0, size);
 
   // it does not go through os api, the operation has to record from here
-  MemTracker::record_virtual_memory_reserve((address)mapAddress, size, mtInternal, CURRENT_PC);
+  MemTracker::record_virtual_memory_reserve_and_commit((address)mapAddress, size, CURRENT_PC, mtInternal);
 
   return mapAddress;
 }
@@ -918,7 +918,7 @@
   }
 
   // it does not go through os api, the operation has to record from here
-  MemTracker::record_virtual_memory_reserve((address)mapAddress, size, mtInternal, CURRENT_PC);
+  MemTracker::record_virtual_memory_reserve_and_commit((address)mapAddress, size, CURRENT_PC, mtInternal);
 
   *addr = mapAddress;
   *sizep = size;
--- a/hotspot/src/os/linux/vm/os_linux.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/linux/vm/os_linux.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -3504,9 +3504,12 @@
 
   assert(is_ptr_aligned(start, alignment), "Must be");
 
-  // os::reserve_memory_special will record this memory area.
-  // Need to release it here to prevent overlapping reservations.
-  MemTracker::record_virtual_memory_release((address)start, bytes);
+  if (MemTracker::tracking_level() > NMT_minimal) {
+    // os::reserve_memory_special will record this memory area.
+    // Need to release it here to prevent overlapping reservations.
+    Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
+    tkr.record((address)start, bytes);
+  }
 
   char* end = start + bytes;
 
@@ -3601,7 +3604,7 @@
     }
 
     // The memory is committed
-    MemTracker::record_virtual_memory_reserve_and_commit((address)addr, bytes, mtNone, CALLER_PC);
+    MemTracker::record_virtual_memory_reserve_and_commit((address)addr, bytes, CALLER_PC);
   }
 
   return addr;
@@ -3617,24 +3620,30 @@
 }
 
 bool os::release_memory_special(char* base, size_t bytes) {
+  bool res;
+  if (MemTracker::tracking_level() > NMT_minimal) {
+    Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
+    res = os::Linux::release_memory_special_impl(base, bytes);
+    if (res) {
+      tkr.record((address)base, bytes);
+    }
+
+  } else {
+    res = os::Linux::release_memory_special_impl(base, bytes);
+  }
+  return res;
+}
+
+bool os::Linux::release_memory_special_impl(char* base, size_t bytes) {
   assert(UseLargePages, "only for large pages");
-
-  MemTracker::Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
-
   bool res;
+
   if (UseSHM) {
     res = os::Linux::release_memory_special_shm(base, bytes);
   } else {
     assert(UseHugeTLBFS, "must be");
     res = os::Linux::release_memory_special_huge_tlbfs(base, bytes);
   }
-
-  if (res) {
-    tkr.record((address)base, bytes);
-  } else {
-    tkr.discard();
-  }
-
   return res;
 }
 
--- a/hotspot/src/os/linux/vm/os_linux.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/linux/vm/os_linux.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -108,6 +108,7 @@
   static char* reserve_memory_special_huge_tlbfs_only(size_t bytes, char* req_addr, bool exec);
   static char* reserve_memory_special_huge_tlbfs_mixed(size_t bytes, size_t alignment, char* req_addr, bool exec);
 
+  static bool release_memory_special_impl(char* base, size_t bytes);
   static bool release_memory_special_shm(char* base, size_t bytes);
   static bool release_memory_special_huge_tlbfs(char* base, size_t bytes);
 
--- a/hotspot/src/os/linux/vm/perfMemory_linux.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/linux/vm/perfMemory_linux.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -753,7 +753,7 @@
   (void)::memset((void*) mapAddress, 0, size);
 
   // it does not go through os api, the operation has to record from here
-  MemTracker::record_virtual_memory_reserve((address)mapAddress, size, mtInternal, CURRENT_PC);
+  MemTracker::record_virtual_memory_reserve_and_commit((address)mapAddress, size, CURRENT_PC, mtInternal);
 
   return mapAddress;
 }
@@ -924,7 +924,7 @@
   }
 
   // it does not go through os api, the operation has to record from here
-  MemTracker::record_virtual_memory_reserve((address)mapAddress, size, mtInternal, CURRENT_PC);
+  MemTracker::record_virtual_memory_reserve_and_commit((address)mapAddress, size, CURRENT_PC, mtInternal);
 
   *addr = mapAddress;
   *sizep = size;
--- a/hotspot/src/os/posix/vm/os_posix.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/posix/vm/os_posix.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -75,21 +75,41 @@
   VMError::report_coredump_status(buffer, success);
 }
 
-address os::get_caller_pc(int n) {
+int os::get_native_stack(address* stack, int frames, int toSkip) {
 #ifdef _NMT_NOINLINE_
-  n ++;
+  toSkip++;
 #endif
+
+  int frame_idx = 0;
+  int num_of_frames;  // number of frames captured
   frame fr = os::current_frame();
-  while (n > 0 && fr.pc() &&
-    !os::is_first_C_frame(&fr) && fr.sender_pc()) {
-    fr = os::get_sender_for_C_frame(&fr);
-    n --;
+  while (fr.pc() && frame_idx < frames) {
+    if (toSkip > 0) {
+      toSkip --;
+    } else {
+      stack[frame_idx ++] = fr.pc();
+    }
+    if (fr.fp() == NULL || os::is_first_C_frame(&fr)
+        ||fr.sender_pc() == NULL || fr.cb() != NULL) break;
+
+    if (fr.sender_pc() && !os::is_first_C_frame(&fr)) {
+      fr = os::get_sender_for_C_frame(&fr);
+    } else {
+      break;
+    }
   }
-  if (n == 0) {
-    return fr.pc();
-  } else {
-    return NULL;
+  num_of_frames = frame_idx;
+  for (; frame_idx < frames; frame_idx ++) {
+    stack[frame_idx] = NULL;
   }
+
+  return num_of_frames;
+}
+
+
+bool os::unsetenv(const char* name) {
+  assert(name != NULL, "Null pointer");
+  return (::unsetenv(name) == 0);
 }
 
 int os::get_last_error() {
--- a/hotspot/src/os/solaris/vm/perfMemory_solaris.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/solaris/vm/perfMemory_solaris.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -770,7 +770,8 @@
   (void)::memset((void*) mapAddress, 0, size);
 
   // it does not go through os api, the operation has to record from here
-  MemTracker::record_virtual_memory_reserve((address)mapAddress, size, mtInternal, CURRENT_PC);
+  MemTracker::record_virtual_memory_reserve_and_commit((address)mapAddress,
+    size, CURRENT_PC, mtInternal);
 
   return mapAddress;
 }
@@ -941,7 +942,8 @@
   }
 
   // it does not go through os api, the operation has to record from here
-  MemTracker::record_virtual_memory_reserve((address)mapAddress, size, mtInternal, CURRENT_PC);
+  MemTracker::record_virtual_memory_reserve_and_commit((address)mapAddress,
+    size, CURRENT_PC, mtInternal);
 
   *addr = mapAddress;
   *sizep = size;
--- a/hotspot/src/os/windows/vm/os_windows.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/windows/vm/os_windows.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -138,9 +138,8 @@
       // Workaround for issue when a custom launcher doesn't call
       // DestroyJavaVM and NMT is trying to track memory when free is
       // called from a static destructor
-      if (MemTracker::is_on()) {
-          MemTracker::shutdown(MemTracker::NMT_normal);
-      }
+      MemTracker::shutdown();
+
       break;
     default:
       break;
@@ -163,6 +162,10 @@
  return result > 0 && result < len;
 }
 
+bool os::unsetenv(const char* name) {
+  assert(name != NULL, "Null pointer");
+  return (SetEnvironmentVariable(name, NULL) == TRUE);
+}
 
 // No setuid programs under Windows.
 bool os::have_special_privileges() {
@@ -319,15 +322,16 @@
  * So far, this method is only used by Native Memory Tracking, which is
  * only supported on Windows XP or later.
  */
-address os::get_caller_pc(int n) {
+int os::get_native_stack(address* stack, int frames, int toSkip) {
 #ifdef _NMT_NOINLINE_
-  n++;
+  toSkip ++;
 #endif
-  address pc;
-  if (os::Kernel32Dll::RtlCaptureStackBackTrace(n + 1, 1, (PVOID*)&pc, NULL) == 1) {
-    return pc;
-  }
-  return NULL;
+  int captured = Kernel32Dll::RtlCaptureStackBackTrace(toSkip + 1, frames,
+    (PVOID*)stack, NULL);
+  for (int index = captured; index < frames; index ++) {
+    stack[index] = NULL;
+  }
+  return captured;
 }
 
 
@@ -2901,7 +2905,7 @@
                                 PAGE_READWRITE);
   // If reservation failed, return NULL
   if (p_buf == NULL) return NULL;
-  MemTracker::record_virtual_memory_reserve((address)p_buf, size_of_reserve, mtNone, CALLER_PC);
+  MemTracker::record_virtual_memory_reserve((address)p_buf, size_of_reserve, CALLER_PC);
   os::release_memory(p_buf, bytes + chunk_size);
 
   // we still need to round up to a page boundary (in case we are using large pages)
@@ -2967,7 +2971,7 @@
         // need to create a dummy 'reserve' record to match
         // the release.
         MemTracker::record_virtual_memory_reserve((address)p_buf,
-          bytes_to_release, mtNone, CALLER_PC);
+          bytes_to_release, CALLER_PC);
         os::release_memory(p_buf, bytes_to_release);
       }
 #ifdef ASSERT
@@ -2986,11 +2990,10 @@
   }
   // Although the memory is allocated individually, it is returned as one.
   // NMT records it as one block.
-  address pc = CALLER_PC;
   if ((flags & MEM_COMMIT) != 0) {
-    MemTracker::record_virtual_memory_reserve_and_commit((address)p_buf, bytes, mtNone, pc);
+    MemTracker::record_virtual_memory_reserve_and_commit((address)p_buf, bytes, CALLER_PC);
   } else {
-    MemTracker::record_virtual_memory_reserve((address)p_buf, bytes, mtNone, pc);
+    MemTracker::record_virtual_memory_reserve((address)p_buf, bytes, CALLER_PC);
   }
 
   // made it this far, success
@@ -3188,8 +3191,7 @@
     DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES;
     char * res = (char *)VirtualAlloc(addr, bytes, flag, prot);
     if (res != NULL) {
-      address pc = CALLER_PC;
-      MemTracker::record_virtual_memory_reserve_and_commit((address)res, bytes, mtNone, pc);
+      MemTracker::record_virtual_memory_reserve_and_commit((address)res, bytes, CALLER_PC);
     }
 
     return res;
--- a/hotspot/src/os/windows/vm/perfMemory_windows.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os/windows/vm/perfMemory_windows.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -29,6 +29,7 @@
 #include "oops/oop.inline.hpp"
 #include "os_windows.inline.hpp"
 #include "runtime/handles.inline.hpp"
+#include "runtime/os.hpp"
 #include "runtime/perfMemory.hpp"
 #include "services/memTracker.hpp"
 #include "utilities/exceptions.hpp"
@@ -1388,7 +1389,7 @@
   // the file has been successfully created and the file mapping
   // object has been created.
   sharedmem_fileHandle = fh;
-  sharedmem_fileName = strdup(filename);
+  sharedmem_fileName = os::strdup(filename);
 
   return fmh;
 }
@@ -1498,7 +1499,8 @@
   (void)memset(mapAddress, '\0', size);
 
   // it does not go through os api, the operation has to record from here
-  MemTracker::record_virtual_memory_reserve((address)mapAddress, size, mtInternal, CURRENT_PC);
+  MemTracker::record_virtual_memory_reserve_and_commit((address)mapAddress,
+    size, CURRENT_PC, mtInternal);
 
   return (char*) mapAddress;
 }
@@ -1680,7 +1682,8 @@
   }
 
   // it does not go through os api, the operation has to record from here
-  MemTracker::record_virtual_memory_reserve((address)mapAddress, size, mtInternal, CURRENT_PC);
+  MemTracker::record_virtual_memory_reserve_and_commit((address)mapAddress, size,
+    CURRENT_PC, mtInternal);
 
 
   *addrp = (char*)mapAddress;
@@ -1834,10 +1837,14 @@
     return;
   }
 
-  MemTracker::Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
-  remove_file_mapping(addr);
-  // it does not go through os api, the operation has to record from here
-  tkr.record((address)addr, bytes);
+  if (MemTracker::tracking_level() > NMT_minimal) {
+    // it does not go through os api, the operation has to record from here
+    Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
+    remove_file_mapping(addr);
+    tkr.record((address)addr, bytes);
+  } else {
+    remove_file_mapping(addr);
+  }
 }
 
 char* PerfMemory::backing_store_filename() {
--- a/hotspot/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -23,6 +23,8 @@
  */
 
 #include "precompiled.hpp"
+#include "memory/allocation.hpp"
+#include "memory/allocation.inline.hpp"
 #include "runtime/os.hpp"
 #include "vm_version_sparc.hpp"
 
@@ -48,7 +50,7 @@
   // All SI defines used below must be supported.
   guarantee(bufsize != -1, "must be supported");
 
-  char* buf = (char*) malloc(bufsize);
+  char* buf = (char*) os::malloc(bufsize, mtInternal);
 
   if (buf == NULL)
     return;
@@ -60,7 +62,7 @@
     }
   }
 
-  free(buf);
+  os::free(buf);
 }
 
 int VM_Version::platform_features(int features) {
@@ -161,7 +163,7 @@
 
     char   tmp;
     size_t bufsize = sysinfo(SI_ISALIST, &tmp, 1);
-    char*  buf     = (char*) malloc(bufsize);
+    char*  buf     = (char*) os::malloc(bufsize, mtInternal);
 
     if (buf != NULL) {
       if (sysinfo(SI_ISALIST, buf, bufsize) == bufsize) {
@@ -184,7 +186,7 @@
           if (vis[3] == '2')                     features |= vis2_instructions_m;
         }
       }
-      free(buf);
+      os::free(buf);
     }
   }
 
@@ -228,7 +230,7 @@
             }
 #endif
             // Convert to UPPER case before compare.
-            char* impl = strdup(implementation);
+            char* impl = os::strdup_check_oom(implementation);
 
             for (int i = 0; impl[i] != 0; i++)
               impl[i] = (char)toupper((uint)impl[i]);
@@ -252,7 +254,7 @@
                 implementation = "SPARC";
               }
             }
-            free((void*)impl);
+            os::free((void*)impl);
             break;
           }
         } // for(
--- a/hotspot/src/share/vm/asm/codeBuffer.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/asm/codeBuffer.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -269,7 +269,7 @@
 
 GrowableArray<int>* CodeBuffer::create_patch_overflow() {
   if (_overflow_arena == NULL) {
-    _overflow_arena = new (mtCode) Arena();
+    _overflow_arena = new (mtCode) Arena(mtCode);
   }
   return new (_overflow_arena) GrowableArray<int>(_overflow_arena, 8, 0, 0);
 }
--- a/hotspot/src/share/vm/c1/c1_Compiler.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/c1/c1_Compiler.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -48,7 +48,7 @@
 
 void Compiler::init_c1_runtime() {
   BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
-  Arena* arena = new (mtCompiler) Arena();
+  Arena* arena = new (mtCompiler) Arena(mtCompiler);
   Runtime1::initialize(buffer_blob);
   FrameMap::initialize();
   // initialize data structures
--- a/hotspot/src/share/vm/c1/c1_LIRAssembler.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/c1/c1_LIRAssembler.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -30,6 +30,7 @@
 #include "c1/c1_MacroAssembler.hpp"
 #include "c1/c1_ValueStack.hpp"
 #include "ci/ciInstance.hpp"
+#include "runtime/os.hpp"
 
 void LIR_Assembler::patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info) {
   // we must have enough patching space so that call can be inserted
@@ -848,7 +849,7 @@
           stringStream st;
           st.print("bad oop %s at %d", r->as_Register()->name(), _masm->offset());
 #ifdef SPARC
-          _masm->_verify_oop(r->as_Register(), strdup(st.as_string()), __FILE__, __LINE__);
+          _masm->_verify_oop(r->as_Register(), os::strdup(st.as_string(), mtCompiler), __FILE__, __LINE__);
 #else
           _masm->verify_oop(r->as_Register());
 #endif
--- a/hotspot/src/share/vm/ci/ciEnv.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/ci/ciEnv.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -86,7 +86,8 @@
 
 // ------------------------------------------------------------------
 // ciEnv::ciEnv
-ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter) {
+ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter)
+  : _ciEnv_arena(mtCompiler) {
   VM_ENTRY_MARK;
 
   // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
@@ -144,7 +145,7 @@
   _jvmti_can_pop_frame = false;
 }
 
-ciEnv::ciEnv(Arena* arena) {
+ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
   ASSERT_IN_VM;
 
   // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
--- a/hotspot/src/share/vm/ci/ciObjectFactory.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/ci/ciObjectFactory.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -112,7 +112,7 @@
   // This Arena is long lived and exists in the resource mark of the
   // compiler thread that initializes the initial ciObjectFactory which
   // creates the shared ciObjects that all later ciObjectFactories use.
-  Arena* arena = new (mtCompiler) Arena();
+  Arena* arena = new (mtCompiler) Arena(mtCompiler);
   ciEnv initial(arena);
   ciEnv* env = ciEnv::current();
   env->_factory->init_shared_objects();
--- a/hotspot/src/share/vm/classfile/classLoader.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/classfile/classLoader.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -273,13 +273,17 @@
 }
 
 LazyClassPathEntry::LazyClassPathEntry(char* path, const struct stat* st) : ClassPathEntry() {
-  _path = strdup(path);
+  _path = os::strdup_check_oom(path);
   _st = *st;
   _meta_index = NULL;
   _resolved_entry = NULL;
   _has_error = false;
 }
 
+LazyClassPathEntry::~LazyClassPathEntry() {
+  os::free(_path);
+}
+
 bool LazyClassPathEntry::is_jar_file() {
   return ((_st.st_mode & S_IFREG) == S_IFREG);
 }
@@ -416,7 +420,7 @@
         default:
         {
           if (!skipCurrentJar && cur_entry != NULL) {
-            char* new_name = strdup(package_name);
+            char* new_name = os::strdup_check_oom(package_name);
             boot_class_path_packages.append(new_name);
           }
         }
@@ -438,7 +442,7 @@
 
 void ClassLoader::setup_bootstrap_search_path() {
   assert(_first_entry == NULL, "should not setup bootstrap class search path twice");
-  char* sys_class_path = os::strdup(Arguments::get_sysclasspath());
+  char* sys_class_path = os::strdup_check_oom(Arguments::get_sysclasspath());
   if (TraceClassLoading && Verbose) {
     tty->print_cr("[Bootstrap loader class path=%s]", sys_class_path);
   }
@@ -460,6 +464,7 @@
       end++;
     }
   }
+  os::free(sys_class_path);
 }
 
 ClassPathEntry* ClassLoader::create_class_path_entry(char *path, const struct stat* st, bool lazy, TRAPS) {
--- a/hotspot/src/share/vm/classfile/classLoader.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/classfile/classLoader.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -128,6 +128,8 @@
   bool is_jar_file();
   const char* name()  { return _path; }
   LazyClassPathEntry(char* path, const struct stat* st);
+  virtual ~LazyClassPathEntry();
+
   ClassFileStream* open_stream(const char* name, TRAPS);
   void set_meta_index(MetaIndex* meta_index) { _meta_index = meta_index; }
   virtual bool is_lazy();
--- a/hotspot/src/share/vm/classfile/symbolTable.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/classfile/symbolTable.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -70,9 +70,9 @@
 void SymbolTable::initialize_symbols(int arena_alloc_size) {
   // Initialize the arena for global symbols, size passed in depends on CDS.
   if (arena_alloc_size == 0) {
-    _arena = new (mtSymbol) Arena();
+    _arena = new (mtSymbol) Arena(mtSymbol);
   } else {
-    _arena = new (mtSymbol) Arena(arena_alloc_size);
+    _arena = new (mtSymbol) Arena(mtSymbol, arena_alloc_size);
   }
 }
 
--- a/hotspot/src/share/vm/classfile/verifier.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/classfile/verifier.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -2217,6 +2217,181 @@
   }
 }
 
+// Look at the method's handlers.  If the bci is in the handler's try block
+// then check if the handler_pc is already on the stack.  If not, push it.
+void ClassVerifier::push_handlers(ExceptionTable* exhandlers,
+                                  GrowableArray<u4>* handler_stack,
+                                  u4 bci) {
+  int exlength = exhandlers->length();
+  for(int x = 0; x < exlength; x++) {
+    if (bci >= exhandlers->start_pc(x) && bci < exhandlers->end_pc(x)) {
+      handler_stack->append_if_missing(exhandlers->handler_pc(x));
+    }
+  }
+}
+
+// Return TRUE if all code paths starting with start_bc_offset end in
+// bytecode athrow or loop.
+bool ClassVerifier::ends_in_athrow(u4 start_bc_offset) {
+  ResourceMark rm;
+  // Create bytecode stream.
+  RawBytecodeStream bcs(method());
+  u4 code_length = method()->code_size();
+  bcs.set_start(start_bc_offset);
+  u4 target;
+  // Create stack for storing bytecode start offsets for if* and *switch.
+  GrowableArray<u4>* bci_stack = new GrowableArray<u4>(30);
+  // Create stack for handlers for try blocks containing this handler.
+  GrowableArray<u4>* handler_stack = new GrowableArray<u4>(30);
+  // Create list of visited branch opcodes (goto* and if*).
+  GrowableArray<u4>* visited_branches = new GrowableArray<u4>(30);
+  ExceptionTable exhandlers(_method());
+
+  while (true) {
+    if (bcs.is_last_bytecode()) {
+      // if no more starting offsets to parse or if at the end of the
+      // method then return false.
+      if ((bci_stack->is_empty()) || ((u4)bcs.end_bci() == code_length))
+        return false;
+      // Pop a bytecode starting offset and scan from there.
+      bcs.set_start(bci_stack->pop());
+    }
+    Bytecodes::Code opcode = bcs.raw_next();
+    u4 bci = bcs.bci();
+
+    // If the bytecode is in a TRY block, push its handlers so they
+    // will get parsed.
+    push_handlers(&exhandlers, handler_stack, bci);
+
+    switch (opcode) {
+      case Bytecodes::_if_icmpeq:
+      case Bytecodes::_if_icmpne:
+      case Bytecodes::_if_icmplt:
+      case Bytecodes::_if_icmpge:
+      case Bytecodes::_if_icmpgt:
+      case Bytecodes::_if_icmple:
+      case Bytecodes::_ifeq:
+      case Bytecodes::_ifne:
+      case Bytecodes::_iflt:
+      case Bytecodes::_ifge:
+      case Bytecodes::_ifgt:
+      case Bytecodes::_ifle:
+      case Bytecodes::_if_acmpeq:
+      case Bytecodes::_if_acmpne:
+      case Bytecodes::_ifnull:
+      case Bytecodes::_ifnonnull:
+        target = bcs.dest();
+        if (visited_branches->contains(bci)) {
+          if (bci_stack->is_empty()) return true;
+          // Pop a bytecode starting offset and scan from there.
+          bcs.set_start(bci_stack->pop());
+        } else {
+          if (target > bci) { // forward branch
+            if (target >= code_length) return false;
+            // Push the branch target onto the stack.
+            bci_stack->push(target);
+            // then, scan bytecodes starting with next.
+            bcs.set_start(bcs.next_bci());
+          } else { // backward branch
+            // Push bytecode offset following backward branch onto the stack.
+            bci_stack->push(bcs.next_bci());
+            // Check bytecodes starting with branch target.
+            bcs.set_start(target);
+          }
+          // Record target so we don't branch here again.
+          visited_branches->append(bci);
+        }
+        break;
+
+      case Bytecodes::_goto:
+      case Bytecodes::_goto_w:
+        target = (opcode == Bytecodes::_goto ? bcs.dest() : bcs.dest_w());
+        if (visited_branches->contains(bci)) {
+          if (bci_stack->is_empty()) return true;
+          // Been here before, pop new starting offset from stack.
+          bcs.set_start(bci_stack->pop());
+        } else {
+          if (target >= code_length) return false;
+          // Continue scanning from the target onward.
+          bcs.set_start(target);
+          // Record target so we don't branch here again.
+          visited_branches->append(bci);
+        }
+        break;
+
+      // Check that all switch alternatives end in 'athrow' bytecodes. Since it
+      // is  difficult to determine where each switch alternative ends, parse
+      // each switch alternative until either hit a 'return', 'athrow', or reach
+      // the end of the method's bytecodes.  This is gross but should be okay
+      // because:
+      // 1. tableswitch and lookupswitch byte codes in handlers for ctor explicit
+      //    constructor invocations should be rare.
+      // 2. if each switch alternative ends in an athrow then the parsing should be
+      //    short.  If there is no athrow then it is bogus code, anyway.
+      case Bytecodes::_lookupswitch:
+      case Bytecodes::_tableswitch:
+        {
+          address aligned_bcp = (address) round_to((intptr_t)(bcs.bcp() + 1), jintSize);
+          u4 default_offset = Bytes::get_Java_u4(aligned_bcp) + bci;
+          int keys, delta;
+          if (opcode == Bytecodes::_tableswitch) {
+            jint low = (jint)Bytes::get_Java_u4(aligned_bcp + jintSize);
+            jint high = (jint)Bytes::get_Java_u4(aligned_bcp + 2*jintSize);
+            // This is invalid, but let the regular bytecode verifier
+            // report this because the user will get a better error message.
+            if (low > high) return true;
+            keys = high - low + 1;
+            delta = 1;
+          } else {
+            keys = (int)Bytes::get_Java_u4(aligned_bcp + jintSize);
+            delta = 2;
+          }
+          // Invalid, let the regular bytecode verifier deal with it.
+          if (keys < 0) return true;
+
+          // Push the offset of the next bytecode onto the stack.
+          bci_stack->push(bcs.next_bci());
+
+          // Push the switch alternatives onto the stack.
+          for (int i = 0; i < keys; i++) {
+            u4 target = bci + (jint)Bytes::get_Java_u4(aligned_bcp+(3+i*delta)*jintSize);
+            if (target > code_length) return false;
+            bci_stack->push(target);
+          }
+
+          // Start bytecode parsing for the switch at the default alternative.
+          if (default_offset > code_length) return false;
+          bcs.set_start(default_offset);
+          break;
+        }
+
+      case Bytecodes::_return:
+        return false;
+
+      case Bytecodes::_athrow:
+        {
+          if (bci_stack->is_empty()) {
+            if (handler_stack->is_empty()) {
+              return true;
+            } else {
+              // Parse the catch handlers for try blocks containing athrow.
+              bcs.set_start(handler_stack->pop());
+            }
+          } else {
+            // Pop a bytecode offset and starting scanning from there.
+            bcs.set_start(bci_stack->pop());
+          }
+        }
+        break;
+
+      default:
+        ;
+    } // end switch
+  } // end while loop
+
+  return false;
+}
+
 void ClassVerifier::verify_invoke_init(
     RawBytecodeStream* bcs, u2 ref_class_index, VerificationType ref_class_type,
     StackMapFrame* current_frame, u4 code_length, bool *this_uninit,
@@ -2236,18 +2411,26 @@
       return;
     }
 
-    // Make sure that this call is not done from within a TRY block because
-    // that can result in returning an incomplete object.  Simply checking
-    // (bci >= start_pc) also ensures that this call is not done after a TRY
-    // block.  That is also illegal because this call must be the first Java
-    // statement in the constructor.
+    // Check if this call is done from inside of a TRY block.  If so, make
+    // sure that all catch clause paths end in a throw.  Otherwise, this
+    // can result in returning an incomplete object.
     ExceptionTable exhandlers(_method());
     int exlength = exhandlers.length();
     for(int i = 0; i < exlength; i++) {
-      if (bci >= exhandlers.start_pc(i)) {
-        verify_error(ErrorContext::bad_code(bci),
-                     "Bad <init> method call from after the start of a try block");
-        return;
+      u2 start_pc = exhandlers.start_pc(i);
+      u2 end_pc = exhandlers.end_pc(i);
+
+      if (bci >= start_pc && bci < end_pc) {
+        if (!ends_in_athrow(exhandlers.handler_pc(i))) {
+          verify_error(ErrorContext::bad_code(bci),
+            "Bad <init> method call from after the start of a try block");
+          return;
+        } else if (VerboseVerification) {
+          ResourceMark rm;
+          tty->print_cr(
+            "Survived call to ends_in_athrow(): %s",
+                        current_class()->name()->as_C_string());
+        }
       }
     }
 
--- a/hotspot/src/share/vm/classfile/verifier.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/classfile/verifier.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -30,6 +30,7 @@
 #include "oops/klass.hpp"
 #include "oops/method.hpp"
 #include "runtime/handles.hpp"
+#include "utilities/growableArray.hpp"
 #include "utilities/exceptions.hpp"
 
 // The verifier class
@@ -303,6 +304,16 @@
     StackMapFrame* current_frame, u4 code_length, bool* this_uninit,
     constantPoolHandle cp, TRAPS);
 
+  // Used by ends_in_athrow() to push all handlers that contain bci onto
+  // the handler_stack, if the handler is not already on the stack.
+  void push_handlers(ExceptionTable* exhandlers,
+                     GrowableArray<u4>* handler_stack,
+                     u4 bci);
+
+  // Returns true if all paths starting with start_bc_offset end in athrow
+  // bytecode or loop.
+  bool ends_in_athrow(u4 start_bc_offset);
+
   void verify_invoke_instructions(
     RawBytecodeStream* bcs, u4 code_length, StackMapFrame* current_frame,
     bool* this_uninit, VerificationType return_type,
--- a/hotspot/src/share/vm/compiler/compilerOracle.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/compiler/compilerOracle.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -33,6 +33,7 @@
 #include "oops/symbol.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/jniHandles.hpp"
+#include "runtime/os.hpp"
 
 class MethodMatcher : public CHeapObj<mtCompiler> {
  public:
@@ -175,7 +176,11 @@
                              Symbol* method_name, Mode method_mode,
                              Symbol* signature, const char * opt, MethodMatcher* next):
     MethodMatcher(class_name, class_mode, method_name, method_mode, signature, next) {
-    option = opt;
+    option = os::strdup_check_oom(opt);
+  }
+
+  virtual ~MethodOptionMatcher() {
+    os::free((void*)option);
   }
 
   bool match(methodHandle method, const char* opt) {
@@ -498,7 +503,7 @@
           tty->print("CompilerOracle: %s ", command_names[command]);
           match->print();
         }
-        match = add_option_string(c_name, c_match, m_name, m_match, signature, strdup(option));
+        match = add_option_string(c_name, c_match, m_name, m_match, signature, option);
         line += bytes_read;
       }
     } else {
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -52,7 +52,8 @@
 }
 
 void ConcurrentMarkSweepPolicy::initialize_generations() {
-  _generations = NEW_C_HEAP_ARRAY3(GenerationSpecPtr, number_of_generations(), mtGC, 0, AllocFailStrategy::RETURN_NULL);
+  _generations = NEW_C_HEAP_ARRAY3(GenerationSpecPtr, number_of_generations(), mtGC,
+    CURRENT_PC, AllocFailStrategy::RETURN_NULL);
   if (_generations == NULL)
     vm_exit_during_initialization("Unable to allocate gen spec");
 
--- a/hotspot/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -289,7 +289,7 @@
   }
 
   _fine_grain_regions = NEW_C_HEAP_ARRAY3(PerRegionTablePtr, _max_fine_entries,
-                        mtGC, 0, AllocFailStrategy::RETURN_NULL);
+                        mtGC, CURRENT_PC, AllocFailStrategy::RETURN_NULL);
 
   if (_fine_grain_regions == NULL) {
     vm_exit_out_of_memory(sizeof(void*)*_max_fine_entries, OOM_MALLOC_ERROR,
--- a/hotspot/src/share/vm/interpreter/abstractInterpreter.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/interpreter/abstractInterpreter.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -280,9 +280,6 @@
   address generate_result_handler_for(BasicType type);
   address generate_slow_signature_handler();
 
-  // entry point generator
-  address generate_method_entry(AbstractInterpreter::MethodKind kind);
-
   void bang_stack_shadow_pages(bool native_call);
 
   void generate_all();
--- a/hotspot/src/share/vm/interpreter/cppInterpreter.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/interpreter/cppInterpreter.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -108,7 +108,7 @@
   }
 
 
-#define method_entry(kind) Interpreter::_entry_table[Interpreter::kind] = generate_method_entry(Interpreter::kind)
+#define method_entry(kind) Interpreter::_entry_table[Interpreter::kind] = ((InterpreterGenerator*)this)->generate_method_entry(Interpreter::kind)
 
   { CodeletMark cm(_masm, "(kind = frame_manager)");
     // all non-native method kinds
--- a/hotspot/src/share/vm/interpreter/interpreter.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/interpreter/interpreter.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -29,6 +29,7 @@
 #include "interpreter/bytecodeHistogram.hpp"
 #include "interpreter/bytecodeInterpreter.hpp"
 #include "interpreter/interpreter.hpp"
+#include "interpreter/interpreterGenerator.hpp"
 #include "interpreter/interpreterRuntime.hpp"
 #include "interpreter/interp_masm.hpp"
 #include "interpreter/templateTable.hpp"
@@ -261,7 +262,7 @@
   // Special intrinsic method?
   // Note: This test must come _after_ the test for native methods,
   //       otherwise we will run into problems with JDK 1.2, see also
-  //       AbstractInterpreterGenerator::generate_method_entry() for
+  //       InterpreterGenerator::generate_method_entry() for
   //       for details.
   switch (m->intrinsic_id()) {
     case vmIntrinsics::_dsin  : return java_lang_math_sin  ;
@@ -521,3 +522,50 @@
     Interpreter::_entry_table[kind] = Interpreter::_entry_table[Interpreter::abstract];
   }
 }
+
+// Generate method entries
+address InterpreterGenerator::generate_method_entry(
+                                        AbstractInterpreter::MethodKind kind) {
+  // determine code generation flags
+  bool synchronized = false;
+  address entry_point = NULL;
+
+  switch (kind) {
+  case Interpreter::zerolocals             :                                                      break;
+  case Interpreter::zerolocals_synchronized: synchronized = true;                                 break;
+  case Interpreter::native                 : entry_point = generate_native_entry(false); break;
+  case Interpreter::native_synchronized    : entry_point = generate_native_entry(true);  break;
+  case Interpreter::empty                  : entry_point = generate_empty_entry(); break;
+  case Interpreter::accessor               : entry_point = generate_accessor_entry(); break;
+  case Interpreter::abstract               : entry_point = generate_abstract_entry();    break;
+
+  case Interpreter::java_lang_math_sin     : // fall thru
+  case Interpreter::java_lang_math_cos     : // fall thru
+  case Interpreter::java_lang_math_tan     : // fall thru
+  case Interpreter::java_lang_math_abs     : // fall thru
+  case Interpreter::java_lang_math_log     : // fall thru
+  case Interpreter::java_lang_math_log10   : // fall thru
+  case Interpreter::java_lang_math_sqrt    : // fall thru
+  case Interpreter::java_lang_math_pow     : // fall thru
+  case Interpreter::java_lang_math_exp     : entry_point = generate_math_entry(kind);      break;
+  case Interpreter::java_lang_ref_reference_get
+                                           : entry_point = generate_Reference_get_entry(); break;
+#ifndef CC_INTERP
+  case Interpreter::java_util_zip_CRC32_update
+                                           : entry_point = generate_CRC32_update_entry();  break;
+  case Interpreter::java_util_zip_CRC32_updateBytes
+                                           : // fall thru
+  case Interpreter::java_util_zip_CRC32_updateByteBuffer
+                                           : entry_point = generate_CRC32_updateBytes_entry(kind); break;
+#endif // CC_INTERP
+  default:
+    fatal(err_msg("unexpected method kind: %d", kind));
+    break;
+  }
+
+  if (entry_point) {
+    return entry_point;
+  }
+
+  return generate_normal_entry(synchronized);
+}
--- a/hotspot/src/share/vm/interpreter/interpreterGenerator.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/interpreter/interpreterGenerator.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -37,9 +37,11 @@
 class InterpreterGenerator: public CC_INTERP_ONLY(CppInterpreterGenerator)
                                    NOT_CC_INTERP(TemplateInterpreterGenerator) {
 
-public:
+ public:
 
-InterpreterGenerator(StubQueue* _code);
+  InterpreterGenerator(StubQueue* _code);
+  // entry point generator
+  address generate_method_entry(AbstractInterpreter::MethodKind kind);
 
 #ifdef TARGET_ARCH_x86
 # include "interpreterGenerator_x86.hpp"
--- a/hotspot/src/share/vm/interpreter/templateInterpreter.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/interpreter/templateInterpreter.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -364,7 +364,7 @@
 
 #define method_entry(kind)                                                                    \
   { CodeletMark cm(_masm, "method entry point (kind = " #kind ")");                    \
-    Interpreter::_entry_table[Interpreter::kind] = generate_method_entry(Interpreter::kind);  \
+    Interpreter::_entry_table[Interpreter::kind] = ((InterpreterGenerator*)this)->generate_method_entry(Interpreter::kind);  \
   }
 
   // all non-native method kinds
--- a/hotspot/src/share/vm/interpreter/templateInterpreterGenerator.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/interpreter/templateInterpreterGenerator.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -59,9 +59,6 @@
   address generate_safept_entry_for(TosState state, address runtime_entry);
   void    generate_throw_exception();
 
-  // entry point generator
-//   address generate_method_entry(AbstractInterpreter::MethodKind kind);
-
   // Instruction generation
   void generate_and_dispatch (Template* t, TosState tos_out = ilgl);
   void set_vtos_entry_points (Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep);
--- a/hotspot/src/share/vm/memory/allocation.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/memory/allocation.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -422,26 +422,23 @@
 }
 
 //------------------------------Arena------------------------------------------
-NOT_PRODUCT(volatile jint Arena::_instance_count = 0;)
 
-Arena::Arena(size_t init_size) {
+Arena::Arena(MEMFLAGS flag, size_t init_size) : _flags(flag), _size_in_bytes(0)  {
   size_t round_size = (sizeof (char *)) - 1;
   init_size = (init_size+round_size) & ~round_size;
   _first = _chunk = new (AllocFailStrategy::EXIT_OOM, init_size) Chunk(init_size);
   _hwm = _chunk->bottom();      // Save the cached hwm, max
   _max = _chunk->top();
-  _size_in_bytes = 0;
+  MemTracker::record_new_arena(flag);
   set_size_in_bytes(init_size);
-  NOT_PRODUCT(Atomic::inc(&_instance_count);)
 }
 
-Arena::Arena() {
+Arena::Arena(MEMFLAGS flag) : _flags(flag), _size_in_bytes(0) {
   _first = _chunk = new (AllocFailStrategy::EXIT_OOM, Chunk::init_size) Chunk(Chunk::init_size);
   _hwm = _chunk->bottom();      // Save the cached hwm, max
   _max = _chunk->top();
-  _size_in_bytes = 0;
+  MemTracker::record_new_arena(flag);
   set_size_in_bytes(Chunk::init_size);
-  NOT_PRODUCT(Atomic::inc(&_instance_count);)
 }
 
 Arena *Arena::move_contents(Arena *copy) {
@@ -463,7 +460,7 @@
 
 Arena::~Arena() {
   destruct_contents();
-  NOT_PRODUCT(Atomic::dec(&_instance_count);)
+  MemTracker::record_arena_free(_flags);
 }
 
 void* Arena::operator new(size_t size) throw() {
@@ -479,21 +476,21 @@
   // dynamic memory type binding
 void* Arena::operator new(size_t size, MEMFLAGS flags) throw() {
 #ifdef ASSERT
-  void* p = (void*)AllocateHeap(size, flags|otArena, CALLER_PC);
+  void* p = (void*)AllocateHeap(size, flags, CALLER_PC);
   if (PrintMallocFree) trace_heap_malloc(size, "Arena-new", p);
   return p;
 #else
-  return (void *) AllocateHeap(size, flags|otArena, CALLER_PC);
+  return (void *) AllocateHeap(size, flags, CALLER_PC);
 #endif
 }
 
 void* Arena::operator new(size_t size, const std::nothrow_t& nothrow_constant, MEMFLAGS flags) throw() {
 #ifdef ASSERT
-  void* p = os::malloc(size, flags|otArena, CALLER_PC);
+  void* p = os::malloc(size, flags, CALLER_PC);
   if (PrintMallocFree) trace_heap_malloc(size, "Arena-new", p);
   return p;
 #else
-  return os::malloc(size, flags|otArena, CALLER_PC);
+  return os::malloc(size, flags, CALLER_PC);
 #endif
 }
 
@@ -518,8 +515,9 @@
 // change the size
 void Arena::set_size_in_bytes(size_t size) {
   if (_size_in_bytes != size) {
+    long delta = (long)(size - size_in_bytes());
     _size_in_bytes = size;
-    MemTracker::record_arena_size((address)this, size);
+    MemTracker::record_arena_size_change(delta, _flags);
   }
 }
 
--- a/hotspot/src/share/vm/memory/allocation.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/memory/allocation.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -133,51 +133,34 @@
 
 
 /*
- * MemoryType bitmap layout:
- * | 16 15 14 13 12 11 10 09 | 08 07 06 05 | 04 03 02 01 |
- * |      memory type        |   object    | reserved    |
- * |                         |     type    |             |
+ * Memory types
  */
 enum MemoryType {
   // Memory type by sub systems. It occupies lower byte.
-  mtNone              = 0x0000,  // undefined
-  mtClass             = 0x0100,  // memory class for Java classes
-  mtThread            = 0x0200,  // memory for thread objects
-  mtThreadStack       = 0x0300,
-  mtCode              = 0x0400,  // memory for generated code
-  mtGC                = 0x0500,  // memory for GC
-  mtCompiler          = 0x0600,  // memory for compiler
-  mtInternal          = 0x0700,  // memory used by VM, but does not belong to
+  mtJavaHeap          = 0x00,  // Java heap
+  mtClass             = 0x01,  // memory class for Java classes
+  mtThread            = 0x02,  // memory for thread objects
+  mtThreadStack       = 0x03,
+  mtCode              = 0x04,  // memory for generated code
+  mtGC                = 0x05,  // memory for GC
+  mtCompiler          = 0x06,  // memory for compiler
+  mtInternal          = 0x07,  // memory used by VM, but does not belong to
                                  // any of above categories, and not used for
                                  // native memory tracking
-  mtOther             = 0x0800,  // memory not used by VM
-  mtSymbol            = 0x0900,  // symbol
-  mtNMT               = 0x0A00,  // memory used by native memory tracking
-  mtChunk             = 0x0B00,  // chunk that holds content of arenas
-  mtJavaHeap          = 0x0C00,  // Java heap
-  mtClassShared       = 0x0D00,  // class data sharing
-  mtTest              = 0x0E00,  // Test type for verifying NMT
-  mtTracing           = 0x0F00,  // memory used for Tracing
-  mt_number_of_types  = 0x000F,  // number of memory types (mtDontTrack
+  mtOther             = 0x08,  // memory not used by VM
+  mtSymbol            = 0x09,  // symbol
+  mtNMT               = 0x0A,  // memory used by native memory tracking
+  mtClassShared       = 0x0B,  // class data sharing
+  mtChunk             = 0x0C,  // chunk that holds content of arenas
+  mtTest              = 0x0D,  // Test type for verifying NMT
+  mtTracing           = 0x0E,  // memory used for Tracing
+  mtNone              = 0x0F,  // undefined
+  mt_number_of_types  = 0x10   // number of memory types (mtDontTrack
                                  // is not included as validate type)
-  mtDontTrack         = 0x0F00,  // memory we do not or cannot track
-  mt_masks            = 0x7F00,
-
-  // object type mask
-  otArena             = 0x0010, // an arena object
-  otNMTRecorder       = 0x0020, // memory recorder object
-  ot_masks            = 0x00F0
 };
 
-#define IS_MEMORY_TYPE(flags, type) ((flags & mt_masks) == type)
-#define HAS_VALID_MEMORY_TYPE(flags)((flags & mt_masks) != mtNone)
-#define FLAGS_TO_MEMORY_TYPE(flags) (flags & mt_masks)
+typedef MemoryType MEMFLAGS;
 
-#define IS_ARENA_OBJ(flags)         ((flags & ot_masks) == otArena)
-#define IS_NMT_RECORDER(flags)      ((flags & ot_masks) == otNMTRecorder)
-#define NMT_CAN_TRACK(flags)        (!IS_NMT_RECORDER(flags) && !(IS_MEMORY_TYPE(flags, mtDontTrack)))
-
-typedef unsigned short MEMFLAGS;
 
 #if INCLUDE_NMT
 
@@ -189,27 +172,23 @@
 
 #endif // INCLUDE_NMT
 
-// debug build does not inline
-#if defined(_NMT_NOINLINE_)
-  #define CURRENT_PC       (NMT_track_callsite ? os::get_caller_pc(1) : 0)
-  #define CALLER_PC        (NMT_track_callsite ? os::get_caller_pc(2) : 0)
-  #define CALLER_CALLER_PC (NMT_track_callsite ? os::get_caller_pc(3) : 0)
-#else
-  #define CURRENT_PC      (NMT_track_callsite? os::get_caller_pc(0) : 0)
-  #define CALLER_PC       (NMT_track_callsite ? os::get_caller_pc(1) : 0)
-  #define CALLER_CALLER_PC (NMT_track_callsite ? os::get_caller_pc(2) : 0)
-#endif
-
+class NativeCallStack;
 
 
 template <MEMFLAGS F> class CHeapObj ALLOCATION_SUPER_CLASS_SPEC {
  public:
-  _NOINLINE_ void* operator new(size_t size, address caller_pc = 0) throw();
+  _NOINLINE_ void* operator new(size_t size, const NativeCallStack& stack) throw();
+  _NOINLINE_ void* operator new(size_t size) throw();
   _NOINLINE_ void* operator new (size_t size, const std::nothrow_t&  nothrow_constant,
-                               address caller_pc = 0) throw();
-  _NOINLINE_ void* operator new [](size_t size, address caller_pc = 0) throw();
+                               const NativeCallStack& stack) throw();
+  _NOINLINE_ void* operator new (size_t size, const std::nothrow_t&  nothrow_constant)
+                               throw();
+  _NOINLINE_ void* operator new [](size_t size, const NativeCallStack& stack) throw();
+  _NOINLINE_ void* operator new [](size_t size) throw();
   _NOINLINE_ void* operator new [](size_t size, const std::nothrow_t&  nothrow_constant,
-                               address caller_pc = 0) throw();
+                               const NativeCallStack& stack) throw();
+  _NOINLINE_ void* operator new [](size_t size, const std::nothrow_t&  nothrow_constant)
+                               throw();
   void  operator delete(void* p);
   void  operator delete [] (void* p);
 };
@@ -384,13 +363,15 @@
 
 //------------------------------Arena------------------------------------------
 // Fast allocation of memory
-class Arena : public CHeapObj<mtNone|otArena> {
+class Arena : public CHeapObj<mtNone> {
 protected:
   friend class ResourceMark;
   friend class HandleMark;
   friend class NoHandleMark;
   friend class VMStructs;
 
+  MEMFLAGS    _flags;           // Memory tracking flags
+
   Chunk *_first;                // First chunk
   Chunk *_chunk;                // current chunk
   char *_hwm, *_max;            // High water mark and max in current chunk
@@ -418,8 +399,8 @@
  }
 
  public:
-  Arena();
-  Arena(size_t init_size);
+  Arena(MEMFLAGS memflag);
+  Arena(MEMFLAGS memflag, size_t init_size);
   ~Arena();
   void  destruct_contents();
   char* hwm() const             { return _hwm; }
@@ -518,8 +499,6 @@
   static void free_malloced_objects(Chunk* chunk, char* hwm, char* max, char* hwm2)  PRODUCT_RETURN;
   static void free_all(char** start, char** end)                                     PRODUCT_RETURN;
 
-  // how many arena instances
-  NOT_PRODUCT(static volatile jint _instance_count;)
 private:
   // Reset this Arena to empty, access will trigger grow if necessary
   void   reset(void) {
@@ -681,7 +660,7 @@
   NEW_C_HEAP_ARRAY3(type, (size), memflags, pc, AllocFailStrategy::RETURN_NULL)
 
 #define NEW_C_HEAP_ARRAY_RETURN_NULL(type, size, memflags)\
-  NEW_C_HEAP_ARRAY3(type, (size), memflags, (address)0, AllocFailStrategy::RETURN_NULL)
+  NEW_C_HEAP_ARRAY3(type, (size), memflags, CURRENT_PC, AllocFailStrategy::RETURN_NULL)
 
 #define REALLOC_C_HEAP_ARRAY(type, old, size, memflags)\
   (type*) (ReallocateHeap((char*)(old), (size) * sizeof(type), memflags))
--- a/hotspot/src/share/vm/memory/allocation.inline.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/memory/allocation.inline.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -27,6 +27,7 @@
 
 #include "runtime/atomic.inline.hpp"
 #include "runtime/os.hpp"
+#include "services/memTracker.hpp"
 
 // Explicit C-heap memory management
 
@@ -49,12 +50,10 @@
 #endif
 
 // allocate using malloc; will fail if no memory available
-inline char* AllocateHeap(size_t size, MEMFLAGS flags, address pc = 0,
+inline char* AllocateHeap(size_t size, MEMFLAGS flags,
+    const NativeCallStack& stack,
     AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM) {
-  if (pc == 0) {
-    pc = CURRENT_PC;
-  }
-  char* p = (char*) os::malloc(size, flags, pc);
+  char* p = (char*) os::malloc(size, flags, stack);
   #ifdef ASSERT
   if (PrintMallocFree) trace_heap_malloc(size, "AllocateHeap", p);
   #endif
@@ -63,10 +62,14 @@
   }
   return p;
 }
+inline char* AllocateHeap(size_t size, MEMFLAGS flags,
+    AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM) {
+  return AllocateHeap(size, flags, CURRENT_PC, alloc_failmode);
+}
 
-inline char* ReallocateHeap(char *old, size_t size, MEMFLAGS flags,
+inline char* ReallocateHeap(char *old, size_t size, MEMFLAGS flag,
     AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM) {
-  char* p = (char*) os::realloc(old, size, flags, CURRENT_PC);
+  char* p = (char*) os::realloc(old, size, flag, CURRENT_PC);
   #ifdef ASSERT
   if (PrintMallocFree) trace_heap_malloc(size, "ReallocateHeap", p);
   #endif
@@ -85,8 +88,22 @@
 
 
 template <MEMFLAGS F> void* CHeapObj<F>::operator new(size_t size,
-      address caller_pc) throw() {
-    void* p = (void*)AllocateHeap(size, F, (caller_pc != 0 ? caller_pc : CALLER_PC));
+      const NativeCallStack& stack) throw() {
+  void* p = (void*)AllocateHeap(size, F, stack);
+#ifdef ASSERT
+  if (PrintMallocFree) trace_heap_malloc(size, "CHeapObj-new", p);
+#endif
+  return p;
+}
+
+template <MEMFLAGS F> void* CHeapObj<F>::operator new(size_t size) throw() {
+  return CHeapObj<F>::operator new(size, CALLER_PC);
+}
+
+template <MEMFLAGS F> void* CHeapObj<F>::operator new (size_t size,
+  const std::nothrow_t&  nothrow_constant, const NativeCallStack& stack) throw() {
+  void* p = (void*)AllocateHeap(size, F, stack,
+      AllocFailStrategy::RETURN_NULL);
 #ifdef ASSERT
     if (PrintMallocFree) trace_heap_malloc(size, "CHeapObj-new", p);
 #endif
@@ -94,23 +111,28 @@
   }
 
 template <MEMFLAGS F> void* CHeapObj<F>::operator new (size_t size,
-  const std::nothrow_t&  nothrow_constant, address caller_pc) throw() {
-  void* p = (void*)AllocateHeap(size, F, (caller_pc != 0 ? caller_pc : CALLER_PC),
-      AllocFailStrategy::RETURN_NULL);
-#ifdef ASSERT
-    if (PrintMallocFree) trace_heap_malloc(size, "CHeapObj-new", p);
-#endif
-    return p;
+  const std::nothrow_t& nothrow_constant) throw() {
+  return CHeapObj<F>::operator new(size, nothrow_constant, CALLER_PC);
 }
 
 template <MEMFLAGS F> void* CHeapObj<F>::operator new [](size_t size,
-      address caller_pc) throw() {
-    return CHeapObj<F>::operator new(size, caller_pc);
+      const NativeCallStack& stack) throw() {
+  return CHeapObj<F>::operator new(size, stack);
+}
+
+template <MEMFLAGS F> void* CHeapObj<F>::operator new [](size_t size)
+  throw() {
+  return CHeapObj<F>::operator new(size, CALLER_PC);
 }
 
 template <MEMFLAGS F> void* CHeapObj<F>::operator new [](size_t size,
-  const std::nothrow_t&  nothrow_constant, address caller_pc) throw() {
-    return CHeapObj<F>::operator new(size, nothrow_constant, caller_pc);
+  const std::nothrow_t&  nothrow_constant, const NativeCallStack& stack) throw() {
+  return CHeapObj<F>::operator new(size, nothrow_constant, stack);
+}
+
+template <MEMFLAGS F> void* CHeapObj<F>::operator new [](size_t size,
+  const std::nothrow_t& nothrow_constant) throw() {
+  return CHeapObj<F>::operator new(size, nothrow_constant, CALLER_PC);
 }
 
 template <MEMFLAGS F> void CHeapObj<F>::operator delete(void* p){
--- a/hotspot/src/share/vm/memory/cardTableRS.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/memory/cardTableRS.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -56,7 +56,7 @@
 #endif
   set_bs(_ct_bs);
   _last_cur_val_in_gen = NEW_C_HEAP_ARRAY3(jbyte, GenCollectedHeap::max_gens + 1,
-                         mtGC, 0, AllocFailStrategy::RETURN_NULL);
+                         mtGC, CURRENT_PC, AllocFailStrategy::RETURN_NULL);
   if (_last_cur_val_in_gen == NULL) {
     vm_exit_during_initialization("Could not create last_cur_val_in_gen array.");
   }
--- a/hotspot/src/share/vm/memory/collectorPolicy.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/memory/collectorPolicy.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -905,7 +905,8 @@
 }
 
 void MarkSweepPolicy::initialize_generations() {
-  _generations = NEW_C_HEAP_ARRAY3(GenerationSpecPtr, number_of_generations(), mtGC, 0, AllocFailStrategy::RETURN_NULL);
+  _generations = NEW_C_HEAP_ARRAY3(GenerationSpecPtr, number_of_generations(), mtGC, CURRENT_PC,
+    AllocFailStrategy::RETURN_NULL);
   if (_generations == NULL) {
     vm_exit_during_initialization("Unable to allocate gen spec");
   }
--- a/hotspot/src/share/vm/memory/heapInspection.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/memory/heapInspection.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -135,7 +135,7 @@
   _ref = (HeapWord*) Universe::boolArrayKlassObj();
   _buckets =
     (KlassInfoBucket*)  AllocateHeap(sizeof(KlassInfoBucket) * _num_buckets,
-                                            mtInternal, 0, AllocFailStrategy::RETURN_NULL);
+       mtInternal, CURRENT_PC, AllocFailStrategy::RETURN_NULL);
   if (_buckets != NULL) {
     _size = _num_buckets;
     for (int index = 0; index < _size; index++) {
--- a/hotspot/src/share/vm/memory/memRegion.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/memory/memRegion.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -103,11 +103,13 @@
 }
 
 void* MemRegion::operator new(size_t size) throw() {
-  return (address)AllocateHeap(size, mtGC, 0, AllocFailStrategy::RETURN_NULL);
+  return (address)AllocateHeap(size, mtGC, CURRENT_PC,
+    AllocFailStrategy::RETURN_NULL);
 }
 
 void* MemRegion::operator new [](size_t size) throw() {
-  return (address)AllocateHeap(size, mtGC, 0, AllocFailStrategy::RETURN_NULL);
+  return (address)AllocateHeap(size, mtGC, CURRENT_PC,
+    AllocFailStrategy::RETURN_NULL);
 }
 void  MemRegion::operator delete(void* p) {
   FreeHeap(p, mtGC);
--- a/hotspot/src/share/vm/memory/resourceArea.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/memory/resourceArea.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -49,11 +49,11 @@
   debug_only(static int _warned;)       // to suppress multiple warnings
 
 public:
-  ResourceArea() {
+  ResourceArea() : Arena(mtThread) {
     debug_only(_nesting = 0;)
   }
 
-  ResourceArea(size_t init_size) : Arena(init_size) {
+  ResourceArea(size_t init_size) : Arena(mtThread, init_size) {
     debug_only(_nesting = 0;);
   }
 
@@ -64,7 +64,7 @@
     if (UseMallocOnly) {
       // use malloc, but save pointer in res. area for later freeing
       char** save = (char**)internal_malloc_4(sizeof(char*));
-      return (*save = (char*)os::malloc(size, mtThread));
+      return (*save = (char*)os::malloc(size, mtThread, CURRENT_PC));
     }
 #endif
     return (char*)Amalloc(size, alloc_failmode);
--- a/hotspot/src/share/vm/opto/compile.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/opto/compile.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -647,6 +647,10 @@
                   _printer(IdealGraphPrinter::printer()),
 #endif
                   _congraph(NULL),
+                  _comp_arena(mtCompiler),
+                  _node_arena(mtCompiler),
+                  _old_arena(mtCompiler),
+                  _Compile_types(mtCompiler),
                   _replay_inline_data(NULL),
                   _late_inlines(comp_arena(), 2, 0, NULL),
                   _string_late_inlines(comp_arena(), 2, 0, NULL),
@@ -954,6 +958,10 @@
     _in_dump_cnt(0),
     _printer(NULL),
 #endif
+    _comp_arena(mtCompiler),
+    _node_arena(mtCompiler),
+    _old_arena(mtCompiler),
+    _Compile_types(mtCompiler),
     _dead_node_list(comp_arena()),
     _dead_node_count(0),
     _congraph(NULL),
--- a/hotspot/src/share/vm/opto/runtime.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/opto/runtime.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1381,11 +1381,11 @@
   }
   NamedCounter* c;
   if (tag == NamedCounter::BiasedLockingCounter) {
-    c = new BiasedLockingNamedCounter(strdup(st.as_string()));
+    c = new BiasedLockingNamedCounter(st.as_string());
   } else if (tag == NamedCounter::RTMLockingCounter) {
-    c = new RTMLockingNamedCounter(strdup(st.as_string()));
+    c = new RTMLockingNamedCounter(st.as_string());
   } else {
-    c = new NamedCounter(strdup(st.as_string()), tag);
+    c = new NamedCounter(st.as_string(), tag);
   }
 
   // atomically add the new counter to the head of the list.  We only
--- a/hotspot/src/share/vm/opto/runtime.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/opto/runtime.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -75,11 +75,17 @@
 
  public:
   NamedCounter(const char *n, CounterTag tag = NoTag):
-    _name(n),
+    _name(n == NULL ? NULL : os::strdup(n)),
     _count(0),
     _next(NULL),
     _tag(tag) {}
 
+  ~NamedCounter() {
+    if (_name != NULL) {
+      os::free((void*)_name);
+    }
+  }
+
   const char * name() const     { return _name; }
   int count() const             { return _count; }
   address addr()                { return (address)&_count; }
--- a/hotspot/src/share/vm/opto/type.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/opto/type.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -265,7 +265,7 @@
   // locking.
 
   Arena* save = current->type_arena();
-  Arena* shared_type_arena = new (mtCompiler)Arena();
+  Arena* shared_type_arena = new (mtCompiler)Arena(mtCompiler);
 
   current->set_type_arena(shared_type_arena);
   _shared_type_dict =
--- a/hotspot/src/share/vm/precompiled/precompiled.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/precompiled/precompiled.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -222,10 +222,17 @@
 # include "runtime/vmThread.hpp"
 # include "runtime/vm_operations.hpp"
 # include "runtime/vm_version.hpp"
+# include "services/allocationSite.hpp"
 # include "services/lowMemoryDetector.hpp"
+# include "services/mallocTracker.hpp"
+# include "services/memBaseline.hpp"
 # include "services/memoryPool.hpp"
 # include "services/memoryService.hpp"
 # include "services/memoryUsage.hpp"
+# include "services/memReporter.hpp"
+# include "services/memTracker.hpp"
+# include "services/nmtCommon.hpp"
+# include "services/virtualMemoryTracker.hpp"
 # include "utilities/accessFlags.hpp"
 # include "utilities/array.hpp"
 # include "utilities/bitMap.hpp"
@@ -240,6 +247,7 @@
 # include "utilities/hashtable.hpp"
 # include "utilities/histogram.hpp"
 # include "utilities/macros.hpp"
+# include "utilities/nativeCallStack.hpp"
 # include "utilities/numberSeq.hpp"
 # include "utilities/ostream.hpp"
 # include "utilities/preserveException.hpp"
--- a/hotspot/src/share/vm/prims/jni.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/prims/jni.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -74,6 +74,7 @@
 #include "runtime/signature.hpp"
 #include "runtime/thread.inline.hpp"
 #include "runtime/vm_operations.hpp"
+#include "services/memTracker.hpp"
 #include "services/runtimeService.hpp"
 #include "trace/tracing.hpp"
 #include "utilities/defaultStream.hpp"
@@ -2697,6 +2698,7 @@
     if (bad_address != NULL) {
       os::protect_memory(bad_address, size, os::MEM_PROT_READ,
                          /*is_committed*/false);
+      MemTracker::record_virtual_memory_type((void*)bad_address, mtInternal);
     }
   }
   return bad_address;
@@ -3857,6 +3859,7 @@
 void TestKlass_test();
 void TestBitMap_test();
 void TestAsUtf8();
+void Test_linked_list();
 #if INCLUDE_ALL_GCS
 void TestOldFreeSpaceCalculation_test();
 void TestG1BiasedArray_test();
@@ -3887,6 +3890,7 @@
     run_unit_test(TestBitMap_test());
     run_unit_test(TestAsUtf8());
     run_unit_test(ObjectMonitor::sanity_checks());
+    run_unit_test(Test_linked_list());
 #if INCLUDE_VM_STRUCTS
     run_unit_test(VMStructs::test());
 #endif
--- a/hotspot/src/share/vm/prims/jvmtiManageCapabilities.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/prims/jvmtiManageCapabilities.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -316,6 +316,7 @@
     avail.can_generate_frame_pop_events ||
     avail.can_generate_method_entry_events ||
     avail.can_generate_method_exit_events;
+#ifdef ZERO
   bool enter_all_methods =
     interp_events ||
     avail.can_generate_breakpoint_events;
@@ -324,6 +325,7 @@
     UseFastEmptyMethods = false;
     UseFastAccessorMethods = false;
   }
+#endif // ZERO
 
   if (avail.can_generate_breakpoint_events) {
     RewriteFrequentPairs = false;
--- a/hotspot/src/share/vm/prims/whitebox.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/prims/whitebox.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -52,8 +52,10 @@
 #include "gc_implementation/g1/heapRegionRemSet.hpp"
 #endif // INCLUDE_ALL_GCS
 
-#ifdef INCLUDE_NMT
+#if INCLUDE_NMT
+#include "services/mallocSiteTable.hpp"
 #include "services/memTracker.hpp"
+#include "utilities/nativeCallStack.hpp"
 #endif // INCLUDE_NMT
 
 #include "compiler/compileBroker.hpp"
@@ -255,12 +257,16 @@
 // NMT picks it up correctly
 WB_ENTRY(jlong, WB_NMTMalloc(JNIEnv* env, jobject o, jlong size))
   jlong addr = 0;
+    addr = (jlong)(uintptr_t)os::malloc(size, mtTest);
+  return addr;
+WB_END
 
-  if (MemTracker::is_on() && !MemTracker::shutdown_in_progress()) {
-    addr = (jlong)(uintptr_t)os::malloc(size, mtTest);
-  }
-
-  return addr;
+// Alloc memory with pseudo call stack. The test can create psudo malloc
+// allocation site to stress the malloc tracking.
+WB_ENTRY(jlong, WB_NMTMallocWithPseudoStack(JNIEnv* env, jobject o, jlong size, jint pseudo_stack))
+  address pc = (address)(size_t)pseudo_stack;
+  NativeCallStack stack(&pc, 1);
+  return (jlong)os::malloc(size, mtTest, stack);
 WB_END
 
 // Free the memory allocated by NMTAllocTest
@@ -271,10 +277,8 @@
 WB_ENTRY(jlong, WB_NMTReserveMemory(JNIEnv* env, jobject o, jlong size))
   jlong addr = 0;
 
-  if (MemTracker::is_on() && !MemTracker::shutdown_in_progress()) {
     addr = (jlong)(uintptr_t)os::reserve_memory(size);
     MemTracker::record_virtual_memory_type((address)addr, mtTest);
-  }
 
   return addr;
 WB_END
@@ -293,20 +297,20 @@
   os::release_memory((char *)(uintptr_t)addr, size);
 WB_END
 
-// Block until the current generation of NMT data to be merged, used to reliably test the NMT feature
-WB_ENTRY(jboolean, WB_NMTWaitForDataMerge(JNIEnv* env))
-
-  if (!MemTracker::is_on() || MemTracker::shutdown_in_progress()) {
-    return false;
-  }
-
-  return MemTracker::wbtest_wait_for_data_merge();
+WB_ENTRY(jboolean, WB_NMTIsDetailSupported(JNIEnv* env))
+  return MemTracker::tracking_level() == NMT_detail;
 WB_END
 
-WB_ENTRY(jboolean, WB_NMTIsDetailSupported(JNIEnv* env))
-  return MemTracker::tracking_level() == MemTracker::NMT_detail;
+WB_ENTRY(void, WB_NMTOverflowHashBucket(JNIEnv* env, jobject o, jlong num))
+  address pc = (address)1;
+  for (jlong index = 0; index < num; index ++) {
+    NativeCallStack stack(&pc, 1);
+    os::malloc(0, mtTest, stack);
+    pc += MallocSiteTable::hash_buckets();
+  }
 WB_END
 
+
 #endif // INCLUDE_NMT
 
 static jmethodID reflected_method_to_jmid(JavaThread* thread, JNIEnv* env, jobject method) {
@@ -857,12 +861,13 @@
 #endif // INCLUDE_ALL_GCS
 #if INCLUDE_NMT
   {CC"NMTMalloc",           CC"(J)J",                 (void*)&WB_NMTMalloc          },
+  {CC"NMTMallocWithPseudoStack", CC"(JI)J",           (void*)&WB_NMTMallocWithPseudoStack},
   {CC"NMTFree",             CC"(J)V",                 (void*)&WB_NMTFree            },
   {CC"NMTReserveMemory",    CC"(J)J",                 (void*)&WB_NMTReserveMemory   },
   {CC"NMTCommitMemory",     CC"(JJ)V",                (void*)&WB_NMTCommitMemory    },
   {CC"NMTUncommitMemory",   CC"(JJ)V",                (void*)&WB_NMTUncommitMemory  },
   {CC"NMTReleaseMemory",    CC"(JJ)V",                (void*)&WB_NMTReleaseMemory   },
-  {CC"NMTWaitForDataMerge", CC"()Z",                  (void*)&WB_NMTWaitForDataMerge},
+  {CC"NMTOverflowHashBucket", CC"(J)V",               (void*)&WB_NMTOverflowHashBucket},
   {CC"NMTIsDetailSupported",CC"()Z",                  (void*)&WB_NMTIsDetailSupported},
 #endif // INCLUDE_NMT
   {CC"deoptimizeAll",      CC"()V",                   (void*)&WB_DeoptimizeAll     },
--- a/hotspot/src/share/vm/runtime/arguments.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/arguments.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -300,6 +300,11 @@
   { "UseNewReflection",              JDK_Version::jdk(9), JDK_Version::jdk(10) },
   { "ReflectionWrapResolutionErrors",JDK_Version::jdk(9), JDK_Version::jdk(10) },
   { "VerifyReflectionBytecodes",     JDK_Version::jdk(9), JDK_Version::jdk(10) },
+  { "AutoShutdownNMT",               JDK_Version::jdk(9), JDK_Version::jdk(10) },
+#ifndef ZERO
+  { "UseFastAccessorMethods",        JDK_Version::jdk(9), JDK_Version::jdk(10) },
+  { "UseFastEmptyMethods",           JDK_Version::jdk(9), JDK_Version::jdk(10) },
+#endif // ZERO
   { NULL, JDK_Version(0), JDK_Version(0) }
 };
 
@@ -803,7 +808,7 @@
   } else {
     *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, new_count, mtInternal);
   }
-  (*bldarray)[*count] = strdup(arg);
+  (*bldarray)[*count] = os::strdup_check_oom(arg);
   *count = new_count;
 }
 
@@ -1074,16 +1079,6 @@
   UseCompiler                = true;
   UseLoopCounter             = true;
 
-#ifndef ZERO
-  // Turn these off for mixed and comp.  Leave them on for Zero.
-  if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) {
-    UseFastAccessorMethods = (mode == _int);
-  }
-  if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) {
-    UseFastEmptyMethods = (mode == _int);
-  }
-#endif
-
   // Default values may be platform/compiler dependent -
   // use the saved values
   ClipInlining               = Arguments::_ClipInlining;
@@ -1889,7 +1884,7 @@
 }
 
 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) {
-  _sun_java_launcher = strdup(launcher);
+  _sun_java_launcher = os::strdup_check_oom(launcher);
 }
 
 bool Arguments::created_by_java_launcher() {
@@ -2392,7 +2387,7 @@
 
   if (PrintNMTStatistics) {
 #if INCLUDE_NMT
-    if (MemTracker::tracking_level() == MemTracker::NMT_off) {
+    if (MemTracker::tracking_level() == NMT_off) {
 #endif // INCLUDE_NMT
       warning("PrintNMTStatistics is disabled, because native memory tracking is not enabled");
       PrintNMTStatistics = false;
@@ -2999,7 +2994,7 @@
       // Redirect GC output to the file. -Xloggc:<filename>
       // ostream_init_log(), when called will use this filename
       // to initialize a fileStream.
-      _gc_log_filename = strdup(tail);
+      _gc_log_filename = os::strdup_check_oom(tail);
      if (!is_filename_valid(_gc_log_filename)) {
        jio_fprintf(defaultStream::output_stream(),
                   "Invalid file name for use with -Xloggc: Filename can only contain the "
@@ -3602,15 +3597,24 @@
       CommandLineFlags::printFlags(tty, false);
       vm_exit(0);
     }
+#if INCLUDE_NMT
     if (match_option(option, "-XX:NativeMemoryTracking", &tail)) {
-#if INCLUDE_NMT
-      MemTracker::init_tracking_options(tail);
-#else
-      jio_fprintf(defaultStream::error_stream(),
-        "Native Memory Tracking is not supported in this VM\n");
-      return JNI_ERR;
+      // The launcher did not setup nmt environment variable properly.
+//      if (!MemTracker::check_launcher_nmt_support(tail)) {
+//        warning("Native Memory Tracking did not setup properly, using wrong launcher?");
+//      }
+
+      // Verify if nmt option is valid.
+      if (MemTracker::verify_nmt_option()) {
+        // Late initialization, still in single-threaded mode.
+        if (MemTracker::tracking_level() >= NMT_summary) {
+          MemTracker::init();
+        }
+      } else {
+        vm_exit_during_initialization("Syntax error, expecting -XX:NativeMemoryTracking=[off|summary|detail]", NULL);
+      }
+    }
 #endif
-    }
 
 
 #ifndef PRODUCT
--- a/hotspot/src/share/vm/runtime/fprofiler.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/fprofiler.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -629,10 +629,16 @@
   }
 
   vmNode(const char* name, const TickPosition where) : ProfilerNode() {
-    _name = name;
+    _name = os::strdup(name);
     update(where);
   }
 
+  ~vmNode() {
+    if (_name != NULL) {
+      os::free((void*)_name);
+    }
+  }
+
   const char *name()    const { return _name; }
   bool is_compiled()    const { return true; }
 
@@ -784,7 +790,7 @@
   assert(index >= 0, "Must be positive");
   // Note that we call strdup below since the symbol may be resource allocated
   if (!table[index]) {
-    table[index] = new (this) vmNode(os::strdup(name), where);
+    table[index] = new (this) vmNode(name, where);
   } else {
     ProfilerNode* prev = table[index];
     for(ProfilerNode* node = prev; node; node = node->next()) {
@@ -794,7 +800,7 @@
       }
       prev = node;
     }
-    prev->set_next(new (this) vmNode(os::strdup(name), where));
+    prev->set_next(new (this) vmNode(name, where));
   }
 }
 
--- a/hotspot/src/share/vm/runtime/globals.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/globals.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -961,11 +961,6 @@
   diagnostic(bool, PrintNMTStatistics, false,                               \
           "Print native memory tracking summary data if it is on")          \
                                                                             \
-  diagnostic(bool, AutoShutdownNMT, true,                                   \
-          "Automatically shutdown native memory tracking under stress "     \
-          "situations. When set to false, native memory tracking tries to " \
-          "stay alive at the expense of JVM performance")                   \
-                                                                            \
   diagnostic(bool, LogCompilation, false,                                   \
           "Log compilation activity in detail to LogFile")                  \
                                                                             \
@@ -2805,12 +2800,6 @@
   product(bool, UseLoopCounter, true,                                       \
           "Increment invocation counter on backward branch")                \
                                                                             \
-  product(bool, UseFastEmptyMethods, true,                                  \
-          "Use fast method entry code for empty methods")                   \
-                                                                            \
-  product(bool, UseFastAccessorMethods, true,                               \
-          "Use fast method entry code for accessor methods")                \
-                                                                            \
   product_pd(bool, UseOnStackReplacement,                                   \
           "Use on stack replacement, calls runtime if invoc. counter "      \
           "overflows in loop")                                              \
--- a/hotspot/src/share/vm/runtime/handles.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/handles.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -227,7 +227,7 @@
   HandleArea* _prev;          // link to outer (older) area
  public:
   // Constructor
-  HandleArea(HandleArea* prev) : Arena(Chunk::tiny_size) {
+  HandleArea(HandleArea* prev) : Arena(mtThread, Chunk::tiny_size) {
     debug_only(_handle_mark_nesting    = 0);
     debug_only(_no_handle_mark_nesting = 0);
     _prev = prev;
--- a/hotspot/src/share/vm/runtime/init.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/init.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -34,8 +34,10 @@
 #include "runtime/init.hpp"
 #include "runtime/safepoint.hpp"
 #include "runtime/sharedRuntime.hpp"
+#include "services/memTracker.hpp"
 #include "utilities/macros.hpp"
 
+
 // Initialization done by VM thread in vm_init_globals()
 void check_ThreadShadow();
 void eventlog_init();
@@ -131,6 +133,12 @@
   javaClasses_init();   // must happen after vtable initialization
   stubRoutines_init2(); // note: StubRoutines need 2-phase init
 
+#if INCLUDE_NMT
+  // Solaris stack is walkable only after stubRoutines are set up.
+  // On Other platforms, the stack is always walkable.
+  NMT_stack_walkable = true;
+#endif // INCLUDE_NMT
+
   // All the flags that get adjusted by VM_Version_init and os::init_2
   // have been set so dump the flags now.
   if (PrintFlagsFinal) {
--- a/hotspot/src/share/vm/runtime/java.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/java.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -57,7 +57,6 @@
 #include "runtime/thread.inline.hpp"
 #include "runtime/timer.hpp"
 #include "runtime/vm_operations.hpp"
-#include "services/memReporter.hpp"
 #include "services/memTracker.hpp"
 #include "trace/tracing.hpp"
 #include "utilities/dtrace.hpp"
@@ -349,12 +348,7 @@
 #endif // ENABLE_ZAP_DEAD_LOCALS
   // Native memory tracking data
   if (PrintNMTStatistics) {
-    if (MemTracker::is_on()) {
-      BaselineTTYOutputer outputer(tty);
-      MemTracker::print_memory_usage(outputer, K, false);
-    } else {
-      tty->print_cr("%s", MemTracker::reason());
-    }
+    MemTracker::final_report(tty);
   }
 }
 
@@ -390,12 +384,7 @@
 
   // Native memory tracking data
   if (PrintNMTStatistics) {
-    if (MemTracker::is_on()) {
-      BaselineTTYOutputer outputer(tty);
-      MemTracker::print_memory_usage(outputer, K, false);
-    } else {
-      tty->print_cr("%s", MemTracker::reason());
-    }
+    MemTracker::final_report(tty);
   }
 }
 
@@ -544,10 +533,6 @@
     BeforeExit_lock->notify_all();
   }
 
-  // Shutdown NMT before exit. Otherwise,
-  // it will run into trouble when system destroys static variables.
-  MemTracker::shutdown(MemTracker::NMT_normal);
-
   if (VerifyStringTableAtExit) {
     int fail_cnt = 0;
     {
--- a/hotspot/src/share/vm/runtime/os.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/os.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -52,6 +52,7 @@
 #include "runtime/thread.inline.hpp"
 #include "runtime/vm_version.hpp"
 #include "services/attachListener.hpp"
+#include "services/nmtCommon.hpp"
 #include "services/memTracker.hpp"
 #include "services/threadService.hpp"
 #include "utilities/defaultStream.hpp"
@@ -516,6 +517,14 @@
   return dup_str;
 }
 
+char* os::strdup_check_oom(const char* str, MEMFLAGS flags) {
+  char* p = os::strdup(str, flags);
+  if (p == NULL) {
+    vm_exit_out_of_memory(strlen(str) + 1, OOM_MALLOC_ERROR, "os::strdup_check_oom");
+  }
+  return p;
+}
+
 
 #define paranoid                 0  /* only set to 1 if you suspect checking code has bug */
 
@@ -553,7 +562,11 @@
   return ptr;
 }
 
-void* os::malloc(size_t size, MEMFLAGS memflags, address caller) {
+void* os::malloc(size_t size, MEMFLAGS flags) {
+  return os::malloc(size, flags, CALLER_PC);
+}
+
+void* os::malloc(size_t size, MEMFLAGS memflags, const NativeCallStack& stack) {
   NOT_PRODUCT(inc_stat_counter(&num_mallocs, 1));
   NOT_PRODUCT(inc_stat_counter(&alloc_bytes, size));
 
@@ -579,11 +592,15 @@
     size = 1;
   }
 
+  // NMT support
+  NMT_TrackingLevel level = MemTracker::tracking_level();
+  size_t            nmt_header_size = MemTracker::malloc_header_size(level);
+
 #ifndef ASSERT
-  const size_t alloc_size = size;
+  const size_t alloc_size = size + nmt_header_size;
 #else
-  const size_t alloc_size = GuardedMemory::get_total_size(size);
-  if (size > alloc_size) { // Check for rollover.
+  const size_t alloc_size = GuardedMemory::get_total_size(size + nmt_header_size);
+  if (size + nmt_header_size > alloc_size) { // Check for rollover.
     return NULL;
   }
 #endif
@@ -602,7 +619,7 @@
     return NULL;
   }
   // Wrap memory with guard
-  GuardedMemory guarded(ptr, size);
+  GuardedMemory guarded(ptr, size + nmt_header_size);
   ptr = guarded.get_user_ptr();
 #endif
   if ((intptr_t)ptr == (intptr_t)MallocCatchPtr) {
@@ -615,48 +632,50 @@
   }
 
   // we do not track guard memory
-  MemTracker::record_malloc((address)ptr, size, memflags, caller == 0 ? CALLER_PC : caller);
-
-  return ptr;
+  return MemTracker::record_malloc((address)ptr, size, memflags, stack, level);
 }
 
+void* os::realloc(void *memblock, size_t size, MEMFLAGS flags) {
+  return os::realloc(memblock, size, flags, CALLER_PC);
+}
 
-void* os::realloc(void *memblock, size_t size, MEMFLAGS memflags, address caller) {
+void* os::realloc(void *memblock, size_t size, MEMFLAGS memflags, const NativeCallStack& stack) {
 #ifndef ASSERT
   NOT_PRODUCT(inc_stat_counter(&num_mallocs, 1));
   NOT_PRODUCT(inc_stat_counter(&alloc_bytes, size));
-  MemTracker::Tracker tkr = MemTracker::get_realloc_tracker();
-  void* ptr = ::realloc(memblock, size);
-  if (ptr != NULL) {
-    tkr.record((address)memblock, (address)ptr, size, memflags,
-     caller == 0 ? CALLER_PC : caller);
-  } else {
-    tkr.discard();
-  }
-  return ptr;
+   // NMT support
+  void* membase = MemTracker::record_free(memblock);
+  NMT_TrackingLevel level = MemTracker::tracking_level();
+  size_t  nmt_header_size = MemTracker::malloc_header_size(level);
+  void* ptr = ::realloc(membase, size + nmt_header_size);
+  return MemTracker::record_malloc(ptr, size, memflags, stack, level);
 #else
   if (memblock == NULL) {
-    return os::malloc(size, memflags, (caller == 0 ? CALLER_PC : caller));
+    return os::malloc(size, memflags, stack);
   }
   if ((intptr_t)memblock == (intptr_t)MallocCatchPtr) {
     tty->print_cr("os::realloc caught " PTR_FORMAT, memblock);
     breakpoint();
   }
-  verify_memory(memblock);
+  // NMT support
+  void* membase = MemTracker::malloc_base(memblock);
+  verify_memory(membase);
   NOT_PRODUCT(if (MallocVerifyInterval > 0) check_heap());
   if (size == 0) {
     return NULL;
   }
   // always move the block
-  void* ptr = os::malloc(size, memflags, caller == 0 ? CALLER_PC : caller);
+  void* ptr = os::malloc(size, memflags, stack);
   if (PrintMalloc) {
     tty->print_cr("os::remalloc " SIZE_FORMAT " bytes, " PTR_FORMAT " --> " PTR_FORMAT, size, memblock, ptr);
   }
   // Copy to new memory if malloc didn't fail
   if ( ptr != NULL ) {
-    GuardedMemory guarded(memblock);
-    memcpy(ptr, memblock, MIN2(size, guarded.get_user_size()));
-    if (paranoid) verify_memory(ptr);
+    GuardedMemory guarded(MemTracker::malloc_base(memblock));
+    // Guard's user data contains NMT header
+    size_t memblock_size = guarded.get_user_size() - MemTracker::malloc_header_size(memblock);
+    memcpy(ptr, memblock, MIN2(size, memblock_size));
+    if (paranoid) verify_memory(MemTracker::malloc_base(ptr));
     if ((intptr_t)ptr == (intptr_t)MallocCatchPtr) {
       tty->print_cr("os::realloc caught, " SIZE_FORMAT " bytes --> " PTR_FORMAT, size, ptr);
       breakpoint();
@@ -669,7 +688,6 @@
 
 
 void  os::free(void *memblock, MEMFLAGS memflags) {
-  address trackp = (address) memblock;
   NOT_PRODUCT(inc_stat_counter(&num_frees, 1));
 #ifdef ASSERT
   if (memblock == NULL) return;
@@ -677,20 +695,22 @@
     if (tty != NULL) tty->print_cr("os::free caught " PTR_FORMAT, memblock);
     breakpoint();
   }
-  verify_memory(memblock);
+  void* membase = MemTracker::record_free(memblock);
+  verify_memory(membase);
   NOT_PRODUCT(if (MallocVerifyInterval > 0) check_heap());
 
-  GuardedMemory guarded(memblock);
+  GuardedMemory guarded(membase);
   size_t size = guarded.get_user_size();
   inc_stat_counter(&free_bytes, size);
-  memblock = guarded.release_for_freeing();
+  membase = guarded.release_for_freeing();
   if (PrintMalloc && tty != NULL) {
-      fprintf(stderr, "os::free " SIZE_FORMAT " bytes --> " PTR_FORMAT "\n", size, (uintptr_t)memblock);
+      fprintf(stderr, "os::free " SIZE_FORMAT " bytes --> " PTR_FORMAT "\n", size, (uintptr_t)membase);
   }
+  ::free(membase);
+#else
+  void* membase = MemTracker::record_free(memblock);
+  ::free(membase);
 #endif
-  MemTracker::record_free(trackp, memflags);
-
-  ::free(memblock);
 }
 
 void os::init_random(long initval) {
@@ -1404,7 +1424,7 @@
 char* os::reserve_memory(size_t bytes, char* addr, size_t alignment_hint) {
   char* result = pd_reserve_memory(bytes, addr, alignment_hint);
   if (result != NULL) {
-    MemTracker::record_virtual_memory_reserve((address)result, bytes, mtNone, CALLER_PC);
+    MemTracker::record_virtual_memory_reserve((address)result, bytes, CALLER_PC);
   }
 
   return result;
@@ -1414,7 +1434,7 @@
    MEMFLAGS flags) {
   char* result = pd_reserve_memory(bytes, addr, alignment_hint);
   if (result != NULL) {
-    MemTracker::record_virtual_memory_reserve((address)result, bytes, mtNone, CALLER_PC);
+    MemTracker::record_virtual_memory_reserve((address)result, bytes, CALLER_PC);
     MemTracker::record_virtual_memory_type((address)result, flags);
   }
 
@@ -1424,7 +1444,7 @@
 char* os::attempt_reserve_memory_at(size_t bytes, char* addr) {
   char* result = pd_attempt_reserve_memory_at(bytes, addr);
   if (result != NULL) {
-    MemTracker::record_virtual_memory_reserve((address)result, bytes, mtNone, CALLER_PC);
+    MemTracker::record_virtual_memory_reserve((address)result, bytes, CALLER_PC);
   }
   return result;
 }
@@ -1464,23 +1484,29 @@
 }
 
 bool os::uncommit_memory(char* addr, size_t bytes) {
-  MemTracker::Tracker tkr = MemTracker::get_virtual_memory_uncommit_tracker();
-  bool res = pd_uncommit_memory(addr, bytes);
-  if (res) {
-    tkr.record((address)addr, bytes);
+  bool res;
+  if (MemTracker::tracking_level() > NMT_minimal) {
+    Tracker tkr = MemTracker::get_virtual_memory_uncommit_tracker();
+    res = pd_uncommit_memory(addr, bytes);
+    if (res) {
+      tkr.record((address)addr, bytes);
+    }
   } else {
-    tkr.discard();
+    res = pd_uncommit_memory(addr, bytes);
   }
   return res;
 }
 
 bool os::release_memory(char* addr, size_t bytes) {
-  MemTracker::Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
-  bool res = pd_release_memory(addr, bytes);
-  if (res) {
-    tkr.record((address)addr, bytes);
+  bool res;
+  if (MemTracker::tracking_level() > NMT_minimal) {
+    Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
+    res = pd_release_memory(addr, bytes);
+    if (res) {
+      tkr.record((address)addr, bytes);
+    }
   } else {
-    tkr.discard();
+    res = pd_release_memory(addr, bytes);
   }
   return res;
 }
@@ -1491,7 +1517,7 @@
                            bool allow_exec) {
   char* result = pd_map_memory(fd, file_name, file_offset, addr, bytes, read_only, allow_exec);
   if (result != NULL) {
-    MemTracker::record_virtual_memory_reserve_and_commit((address)result, bytes, mtNone, CALLER_PC);
+    MemTracker::record_virtual_memory_reserve_and_commit((address)result, bytes, CALLER_PC);
   }
   return result;
 }
@@ -1504,12 +1530,15 @@
 }
 
 bool os::unmap_memory(char *addr, size_t bytes) {
-  MemTracker::Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
-  bool result = pd_unmap_memory(addr, bytes);
-  if (result) {
-    tkr.record((address)addr, bytes);
+  bool result;
+  if (MemTracker::tracking_level() > NMT_minimal) {
+    Tracker tkr = MemTracker::get_virtual_memory_release_tracker();
+    result = pd_unmap_memory(addr, bytes);
+    if (result) {
+      tkr.record((address)addr, bytes);
+    }
   } else {
-    tkr.discard();
+    result = pd_unmap_memory(addr, bytes);
   }
   return result;
 }
--- a/hotspot/src/share/vm/runtime/os.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/os.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -65,6 +65,8 @@
 class Event;
 class DLL;
 class FileHandle;
+class NativeCallStack;
+
 template<class E> class GrowableArray;
 
 // %%%%% Moved ThreadState, START_FN, OSThread to new osThread.hpp. -- Rose
@@ -96,9 +98,11 @@
 // Typedef for structured exception handling support
 typedef void (*java_call_t)(JavaValue* value, methodHandle* method, JavaCallArguments* args, Thread* thread);
 
+class MallocTracker;
+
 class os: AllStatic {
   friend class VMStructs;
-
+  friend class MallocTracker;
  public:
   enum { page_sizes_max = 9 }; // Size of _page_sizes array (8 plus a sentinel)
 
@@ -160,7 +164,10 @@
   // Override me as needed
   static int    file_name_strcmp(const char* s1, const char* s2);
 
+  // get/unset environment variable
   static bool getenv(const char* name, char* buffer, int len);
+  static bool unsetenv(const char* name);
+
   static bool have_special_privileges();
 
   static jlong  javaTimeMillis();
@@ -207,8 +214,13 @@
 
   // Interface for detecting multiprocessor system
   static inline bool is_MP() {
+#if !INCLUDE_NMT
     assert(_processor_count > 0, "invalid processor count");
     return _processor_count > 1 || AssumeMP;
+#else
+    // NMT needs atomic operations before this initialization.
+    return true;
+#endif
   }
   static julong available_memory();
   static julong physical_memory();
@@ -635,15 +647,25 @@
   static void* thread_local_storage_at(int index);
   static void  free_thread_local_storage(int index);
 
-  // Stack walk
-  static address get_caller_pc(int n = 0);
+  // Retrieve native stack frames.
+  // Parameter:
+  //   stack:  an array to storage stack pointers.
+  //   frames: size of above array.
+  //   toSkip: number of stack frames to skip at the beginning.
+  // Return: number of stack frames captured.
+  static int get_native_stack(address* stack, int size, int toSkip = 0);
 
   // General allocation (must be MT-safe)
-  static void* malloc  (size_t size, MEMFLAGS flags, address caller_pc = 0);
-  static void* realloc (void *memblock, size_t size, MEMFLAGS flags, address caller_pc = 0);
+  static void* malloc  (size_t size, MEMFLAGS flags, const NativeCallStack& stack);
+  static void* malloc  (size_t size, MEMFLAGS flags);
+  static void* realloc (void *memblock, size_t size, MEMFLAGS flag, const NativeCallStack& stack);
+  static void* realloc (void *memblock, size_t size, MEMFLAGS flag);
+
   static void  free    (void *memblock, MEMFLAGS flags = mtNone);
   static bool  check_heap(bool force = false);      // verify C heap integrity
   static char* strdup(const char *, MEMFLAGS flags = mtInternal);  // Like strdup
+  // Like strdup, but exit VM when strdup() returns NULL
+  static char* strdup_check_oom(const char*, MEMFLAGS flags = mtInternal);
 
 #ifndef PRODUCT
   static julong num_mallocs;         // # of calls to malloc/realloc
--- a/hotspot/src/share/vm/runtime/safepoint.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/safepoint.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -52,7 +52,6 @@
 #include "runtime/sweeper.hpp"
 #include "runtime/synchronizer.hpp"
 #include "runtime/thread.inline.hpp"
-#include "services/memTracker.hpp"
 #include "services/runtimeService.hpp"
 #include "utilities/events.hpp"
 #include "utilities/macros.hpp"
@@ -527,10 +526,6 @@
     TraceTime t7("purging class loader data graph", TraceSafepointCleanupTime);
     ClassLoaderDataGraph::purge_if_needed();
   }
-
-  if (MemTracker::is_on()) {
-    MemTracker::sync();
-  }
 }
 
 
--- a/hotspot/src/share/vm/runtime/thread.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/thread.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -297,8 +297,7 @@
 #if INCLUDE_NMT
   // record thread's native stack, stack grows downward
   address stack_low_addr = stack_base() - stack_size();
-  MemTracker::record_thread_stack(stack_low_addr, stack_size(), this,
-      CURRENT_PC);
+  MemTracker::record_thread_stack(stack_low_addr, stack_size());
 #endif // INCLUDE_NMT
 }
 
@@ -316,7 +315,7 @@
 #if INCLUDE_NMT
   if (_stack_base != NULL) {
     address low_stack_addr = stack_base() - stack_size();
-    MemTracker::release_thread_stack(low_stack_addr, stack_size(), this);
+    MemTracker::release_thread_stack(low_stack_addr, stack_size());
 #ifdef ASSERT
     set_stack_base(NULL);
 #endif
@@ -1425,9 +1424,6 @@
   set_monitor_chunks(NULL);
   set_next(NULL);
   set_thread_state(_thread_new);
-#if INCLUDE_NMT
-  set_recorder(NULL);
-#endif
   _terminated = _not_terminated;
   _privileged_stack_top = NULL;
   _array_for_gc = NULL;
@@ -1503,7 +1499,6 @@
     _jni_attach_state = _not_attaching_via_jni;
   }
   assert(deferred_card_mark().is_empty(), "Default MemRegion ctor");
-  _safepoint_visible = false;
 }
 
 bool JavaThread::reguard_stack(address cur_sp) {
@@ -1566,7 +1561,6 @@
   thr_type = entry_point == &compiler_thread_entry ? os::compiler_thread :
                                                      os::java_thread;
   os::create_thread(this, thr_type, stack_sz);
-  _safepoint_visible = false;
   // The _osthread may be NULL here because we ran out of memory (too many threads active).
   // We need to throw and OutOfMemoryError - however we cannot do this here because the caller
   // may hold a lock and all locks must be unlocked before throwing the exception (throwing
@@ -1584,13 +1578,6 @@
       tty->print_cr("terminate thread %p", this);
   }
 
-  // By now, this thread should already be invisible to safepoint,
-  // and its per-thread recorder also collected.
-  assert(!is_safepoint_visible(), "wrong state");
-#if INCLUDE_NMT
-  assert(get_recorder() == NULL, "Already collected");
-#endif // INCLUDE_NMT
-
   // JSR166 -- return the parker to the free list
   Parker::Release(_parker);
   _parker = NULL;
@@ -3359,11 +3346,6 @@
   // initialize TLS
   ThreadLocalStorage::init();
 
-  // Bootstrap native memory tracking, so it can start recording memory
-  // activities before worker thread is started. This is the first phase
-  // of bootstrapping, VM is currently running in single-thread mode.
-  MemTracker::bootstrap_single_thread();
-
   // Initialize output stream logging
   ostream_init_log();
 
@@ -3414,9 +3396,6 @@
   // Initialize Java-Level synchronization subsystem
   ObjectMonitor::Initialize();
 
-  // Second phase of bootstrapping, VM is about entering multi-thread mode
-  MemTracker::bootstrap_multi_thread();
-
   // Initialize global modules
   jint status = init_globals();
   if (status != JNI_OK) {
@@ -3438,9 +3417,6 @@
   // real raw monitor. VM is setup enough here for raw monitor enter.
   JvmtiExport::transition_pending_onload_raw_monitors();
 
-  // Fully start NMT
-  MemTracker::start();
-
   // Create the VMThread
   { TraceTime timer("Start VMThread", TraceStartupTime);
     VMThread::create();
@@ -3995,8 +3971,6 @@
     daemon = false;
   }
 
-  p->set_safepoint_visible(true);
-
   ThreadService::add_thread(p, daemon);
 
   // Possible GC point.
@@ -4042,13 +4016,6 @@
     // to do callbacks into the safepoint code. However, the safepoint code is not aware
     // of this thread since it is removed from the queue.
     p->set_terminated_value();
-
-    // Now, this thread is not visible to safepoint
-    p->set_safepoint_visible(false);
-    // once the thread becomes safepoint invisible, we can not use its per-thread
-    // recorder. And Threads::do_threads() no longer walks this thread, so we have
-    // to release its per-thread recorder here.
-    MemTracker::thread_exiting(p);
   } // unlock Threads_lock
 
   // Since Events::log uses a lock, we grab it outside the Threads_lock
--- a/hotspot/src/share/vm/runtime/thread.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/thread.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -43,10 +43,6 @@
 #include "runtime/unhandledOops.hpp"
 #include "utilities/macros.hpp"
 
-#if INCLUDE_NMT
-#include "services/memRecorder.hpp"
-#endif // INCLUDE_NMT
-
 #include "trace/traceBackend.hpp"
 #include "trace/traceMacros.hpp"
 #include "utilities/exceptions.hpp"
@@ -1036,16 +1032,6 @@
   bool do_not_unlock_if_synchronized()             { return _do_not_unlock_if_synchronized; }
   void set_do_not_unlock_if_synchronized(bool val) { _do_not_unlock_if_synchronized = val; }
 
-#if INCLUDE_NMT
-  // native memory tracking
-  inline MemRecorder* get_recorder() const          { return (MemRecorder*)_recorder; }
-  inline void         set_recorder(MemRecorder* rc) { _recorder = rc; }
-
- private:
-  // per-thread memory recorder
-  MemRecorder* volatile _recorder;
-#endif // INCLUDE_NMT
-
   // Suspend/resume support for JavaThread
  private:
   inline void set_ext_suspended();
@@ -1485,19 +1471,6 @@
      return result;
    }
 
- // NMT (Native memory tracking) support.
- // This flag helps NMT to determine if this JavaThread will be blocked
- // at safepoint. If not, ThreadCritical is needed for writing memory records.
- // JavaThread is only safepoint visible when it is in Threads' thread list,
- // it is not visible until it is added to the list and becomes invisible
- // once it is removed from the list.
- public:
-  bool is_safepoint_visible() const { return _safepoint_visible; }
-  void set_safepoint_visible(bool visible) { _safepoint_visible = visible; }
- private:
-  bool _safepoint_visible;
-
-  // Static operations
  public:
   // Returns the running thread as a JavaThread
   static inline JavaThread* current();
--- a/hotspot/src/share/vm/runtime/vmStructs.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/runtime/vmStructs.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -52,6 +52,7 @@
 #include "interpreter/bytecodes.hpp"
 #include "interpreter/interpreter.hpp"
 #include "memory/allocation.hpp"
+#include "memory/allocation.inline.hpp"
 #include "memory/cardTableRS.hpp"
 #include "memory/defNewGeneration.hpp"
 #include "memory/freeBlockDictionary.hpp"
@@ -93,6 +94,7 @@
 #include "runtime/globals.hpp"
 #include "runtime/java.hpp"
 #include "runtime/javaCalls.hpp"
+#include "runtime/os.hpp"
 #include "runtime/perfMemory.hpp"
 #include "runtime/serviceThread.hpp"
 #include "runtime/sharedRuntime.hpp"
@@ -3296,14 +3298,14 @@
     }
   }
   if (strstr(typeName, " const") == typeName + len - 6) {
-    char * s = strdup(typeName);
+    char * s = os::strdup_check_oom(typeName);
     s[len - 6] = '\0';
     // tty->print_cr("checking \"%s\" for \"%s\"", s, typeName);
     if (recursiveFindType(origtypes, s, true) == 1) {
-      free(s);
+      os::free(s);
       return 1;
     }
-    free(s);
+    os::free(s);
   }
   if (!isRecurse) {
     tty->print_cr("type \"%s\" not found", typeName);
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/services/allocationSite.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_SERVICES_ALLOCATION_SITE_HPP
+#define SHARE_VM_SERVICES_ALLOCATION_SITE_HPP
+
+#include "memory/allocation.hpp"
+#include "utilities/nativeCallStack.hpp"
+
+// Allocation site represents a code path that makes a memory
+// allocation
+template <class E> class AllocationSite VALUE_OBJ_CLASS_SPEC {
+ private:
+  NativeCallStack  _call_stack;
+  E                e;
+ public:
+  AllocationSite(const NativeCallStack& stack) : _call_stack(stack) { }
+  int hash() const { return _call_stack.hash(); }
+  bool equals(const NativeCallStack& stack) const {
+    return _call_stack.equals(stack);
+  }
+
+  bool equals(const AllocationSite<E>& other) const {
+    return other.equals(_call_stack);
+  }
+
+  const NativeCallStack* call_stack() const {
+    return &_call_stack;
+  }
+
+  // Information regarding this allocation
+  E* data()             { return &e; }
+  const E* peek() const { return &e; }
+};
+
+#endif  // SHARE_VM_SERVICES_ALLOCATION_SITE_HPP
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/services/mallocSiteTable.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -0,0 +1,261 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+#include "precompiled.hpp"
+
+
+#include "memory/allocation.inline.hpp"
+#include "runtime/atomic.hpp"
+#include "services/mallocSiteTable.hpp"
+
+/*
+ * Early os::malloc() calls come from initializations of static variables, long before entering any
+ * VM code. Upon the arrival of the first os::malloc() call, malloc site hashtable has to be
+ * initialized, along with the allocation site for the hashtable entries.
+ * To ensure that malloc site hashtable can be initialized without triggering any additional os::malloc()
+ * call, the hashtable bucket array and hashtable entry allocation site have to be static.
+ * It is not a problem for hashtable bucket, since it is an array of pointer type, C runtime just
+ * allocates a block memory and zero the memory for it.
+ * But for hashtable entry allocation site object, things get tricky. C runtime not only allocates
+ * memory for it, but also calls its constructor at some later time. If we initialize the allocation site
+ * at the first os::malloc() call, the object will be reinitialized when its constructor is called
+ * by C runtime.
+ * To workaround above issue, we declare a static size_t array with the size of the CallsiteHashtableEntry,
+ * the memory is used to instantiate CallsiteHashtableEntry for the hashtable entry allocation site.
+ * Given it is a primitive type array, C runtime will do nothing other than assign the memory block for the variable,
+ * which is exactly what we want.
+ * The same trick is also applied to create NativeCallStack object for CallsiteHashtableEntry memory allocation.
+ *
+ * Note: C++ object usually aligns to particular alignment, depends on compiler implementation, we declare
+ * the memory as size_t arrays, to ensure the memory is aligned to native machine word alignment.
+ */
+
+// Reserve enough memory for NativeCallStack and MallocSiteHashtableEntry objects
+size_t MallocSiteTable::_hash_entry_allocation_stack[CALC_OBJ_SIZE_IN_TYPE(NativeCallStack, size_t)];
+size_t MallocSiteTable::_hash_entry_allocation_site[CALC_OBJ_SIZE_IN_TYPE(MallocSiteHashtableEntry, size_t)];
+
+// Malloc site hashtable buckets
+MallocSiteHashtableEntry*  MallocSiteTable::_table[MallocSiteTable::table_size];
+
+// concurrent access counter
+volatile int MallocSiteTable::_access_count = 0;
+
+// Tracking hashtable contention
+NOT_PRODUCT(int MallocSiteTable::_peak_count = 0;)
+
+
+/*
+ * Initialize malloc site table.
+ * Hashtable entry is malloc'd, so it can cause infinite recursion.
+ * To avoid above problem, we pre-initialize a hash entry for
+ * this allocation site.
+ * The method is called during C runtime static variable initialization
+ * time, it is in single-threaded mode from JVM perspective.
+ */
+bool MallocSiteTable::initialize() {
+  assert(sizeof(_hash_entry_allocation_stack) >= sizeof(NativeCallStack), "Sanity Check");
+  assert(sizeof(_hash_entry_allocation_site) >= sizeof(MallocSiteHashtableEntry),
+    "Sanity Check");
+  assert((size_t)table_size <= MAX_MALLOCSITE_TABLE_SIZE, "Hashtable overflow");
+
+  // Fake the call stack for hashtable entry allocation
+  assert(NMT_TrackingStackDepth > 1, "At least one tracking stack");
+
+  // Create pseudo call stack for hashtable entry allocation
+  address pc[3];
+  if (NMT_TrackingStackDepth >= 3) {
+    pc[2] = (address)MallocSiteTable::allocation_at;
+  }
+  if (NMT_TrackingStackDepth >= 2) {
+    pc[1] = (address)MallocSiteTable::lookup_or_add;
+  }
+  pc[0] = (address)MallocSiteTable::new_entry;
+
+  // Instantiate NativeCallStack object, have to use placement new operator. (see comments above)
+  NativeCallStack* stack = ::new ((void*)_hash_entry_allocation_stack)
+    NativeCallStack(pc, MIN2(((int)(sizeof(pc) / sizeof(address))), ((int)NMT_TrackingStackDepth)));
+
+  // Instantiate hash entry for hashtable entry allocation callsite
+  MallocSiteHashtableEntry* entry = ::new ((void*)_hash_entry_allocation_site)
+    MallocSiteHashtableEntry(*stack);
+
+  // Add the allocation site to hashtable.
+  int index = hash_to_index(stack->hash());
+  _table[index] = entry;
+
+  return true;
+}
+
+// Walks entries in the hashtable.
+// It stops walk if the walker returns false.
+bool MallocSiteTable::walk(MallocSiteWalker* walker) {
+  MallocSiteHashtableEntry* head;
+  for (int index = 0; index < table_size; index ++) {
+    head = _table[index];
+    while (head != NULL) {
+      if (!walker->do_malloc_site(head->peek())) {
+        return false;
+      }
+      head = (MallocSiteHashtableEntry*)head->next();
+    }
+  }
+  return true;
+}
+
+/*
+ *  The hashtable does not have deletion policy on individual entry,
+ *  and each linked list node is inserted via compare-and-swap,
+ *  so each linked list is stable, the contention only happens
+ *  at the end of linked list.
+ *  This method should not return NULL under normal circumstance.
+ *  If NULL is returned, it indicates:
+ *    1. Out of memory, it cannot allocate new hash entry.
+ *    2. Overflow hash bucket.
+ *  Under any of above circumstances, caller should handle the situation.
+ */
+MallocSite* MallocSiteTable::lookup_or_add(const NativeCallStack& key, size_t* bucket_idx,
+  size_t* pos_idx) {
+  int index = hash_to_index(key.hash());
+  assert(index >= 0, "Negative index");
+  *bucket_idx = (size_t)index;
+  *pos_idx = 0;
+
+  // First entry for this hash bucket
+  if (_table[index] == NULL) {
+    MallocSiteHashtableEntry* entry = new_entry(key);
+    // OOM check
+    if (entry == NULL) return NULL;
+
+    // swap in the head
+    if (Atomic::cmpxchg_ptr((void*)entry, (volatile void *)&_table[index], NULL) == NULL) {
+      return entry->data();
+    }
+
+    delete entry;
+  }
+
+  MallocSiteHashtableEntry* head = _table[index];
+  while (head != NULL && (*pos_idx) <= MAX_BUCKET_LENGTH) {
+    MallocSite* site = head->data();
+    if (site->equals(key)) {
+      // found matched entry
+      return head->data();
+    }
+
+    if (head->next() == NULL && (*pos_idx) < MAX_BUCKET_LENGTH) {
+      MallocSiteHashtableEntry* entry = new_entry(key);
+      // OOM check
+      if (entry == NULL) return NULL;
+      if (head->atomic_insert(entry)) {
+        (*pos_idx) ++;
+        return entry->data();
+      }
+      // contended, other thread won
+      delete entry;
+    }
+    head = (MallocSiteHashtableEntry*)head->next();
+    (*pos_idx) ++;
+  }
+  return NULL;
+}
+
+// Access malloc site
+MallocSite* MallocSiteTable::malloc_site(size_t bucket_idx, size_t pos_idx) {
+  assert(bucket_idx < table_size, "Invalid bucket index");
+  MallocSiteHashtableEntry* head = _table[bucket_idx];
+  for (size_t index = 0; index < pos_idx && head != NULL;
+    index ++, head = (MallocSiteHashtableEntry*)head->next());
+  assert(head != NULL, "Invalid position index");
+  return head->data();
+}
+
+// Allocates MallocSiteHashtableEntry object. Special call stack
+// (pre-installed allocation site) has to be used to avoid infinite
+// recursion.
+MallocSiteHashtableEntry* MallocSiteTable::new_entry(const NativeCallStack& key) {
+  void* p = AllocateHeap(sizeof(MallocSiteHashtableEntry), mtNMT,
+    *hash_entry_allocation_stack(), AllocFailStrategy::RETURN_NULL);
+  return ::new (p) MallocSiteHashtableEntry(key);
+}
+
+void MallocSiteTable::reset() {
+  for (int index = 0; index < table_size; index ++) {
+    MallocSiteHashtableEntry* head = _table[index];
+    _table[index] = NULL;
+    delete_linked_list(head);
+  }
+}
+
+void MallocSiteTable::delete_linked_list(MallocSiteHashtableEntry* head) {
+  MallocSiteHashtableEntry* p;
+  while (head != NULL) {
+    p = head;
+    head = (MallocSiteHashtableEntry*)head->next();
+    if (p != (MallocSiteHashtableEntry*)_hash_entry_allocation_site) {
+      delete p;
+    }
+  }
+}
+
+void MallocSiteTable::shutdown() {
+  AccessLock locker(&_access_count);
+  locker.exclusiveLock();
+  reset();
+}
+
+bool MallocSiteTable::walk_malloc_site(MallocSiteWalker* walker) {
+  assert(walker != NULL, "NuLL walker");
+  AccessLock locker(&_access_count);
+  if (locker.sharedLock()) {
+    NOT_PRODUCT(_peak_count = MAX2(_peak_count, _access_count);)
+    return walk(walker);
+  }
+  return false;
+}
+
+
+void MallocSiteTable::AccessLock::exclusiveLock() {
+  jint target;
+  jint val;
+
+  assert(_lock_state != ExclusiveLock, "Can only call once");
+  assert(*_lock >= 0, "Can not content exclusive lock");
+
+  // make counter negative to block out shared locks
+  do {
+    val = *_lock;
+    target = _MAGIC_ + *_lock;
+  } while (Atomic::cmpxchg(target, _lock, val) != val);
+
+  // wait for all readers to exit
+  while (*_lock != _MAGIC_) {
+#ifdef _WINDOWS
+    os::naked_short_sleep(1);
+#else
+    os::naked_yield();
+#endif
+  }
+  _lock_state = ExclusiveLock;
+}
+
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/services/mallocSiteTable.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -0,0 +1,268 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_SERVICES_MALLOC_SITE_TABLE_HPP
+#define SHARE_VM_SERVICES_MALLOC_SITE_TABLE_HPP
+
+#if INCLUDE_NMT
+
+#include "memory/allocation.hpp"
+#include "runtime/atomic.hpp"
+#include "services/allocationSite.hpp"
+#include "services/mallocTracker.hpp"
+#include "services/nmtCommon.hpp"
+
+// MallocSite represents a code path that eventually calls
+// os::malloc() to allocate memory
+class MallocSite : public AllocationSite<MemoryCounter> {
+ public:
+  MallocSite() :
+    AllocationSite<MemoryCounter>(emptyStack) { }
+
+  MallocSite(const NativeCallStack& stack) :
+    AllocationSite<MemoryCounter>(stack) { }
+
+  void allocate(size_t size)      { data()->allocate(size);   }
+  void deallocate(size_t size)    { data()->deallocate(size); }
+
+  // Memory allocated from this code path
+  size_t size()  const { return peek()->size(); }
+  // The number of calls were made
+  size_t count() const { return peek()->count(); }
+};
+
+// Malloc site hashtable entry
+class MallocSiteHashtableEntry : public CHeapObj<mtNMT> {
+ private:
+  MallocSite                _malloc_site;
+  MallocSiteHashtableEntry* _next;
+
+ public:
+  MallocSiteHashtableEntry() : _next(NULL) { }
+
+  MallocSiteHashtableEntry(NativeCallStack stack):
+    _malloc_site(stack), _next(NULL) { }
+
+  inline const MallocSiteHashtableEntry* next() const {
+    return _next;
+  }
+
+  // Insert an entry atomically.
+  // Return true if the entry is inserted successfully.
+  // The operation can be failed due to contention from other thread.
+  bool atomic_insert(const MallocSiteHashtableEntry* entry) {
+    return (Atomic::cmpxchg_ptr((void*)entry, (volatile void*)&_next,
+      NULL) == NULL);
+  }
+
+  void set_callsite(const MallocSite& site) {
+    _malloc_site = site;
+  }
+
+  inline const MallocSite* peek() const { return &_malloc_site; }
+  inline MallocSite* data()             { return &_malloc_site; }
+
+  inline long hash() const { return _malloc_site.hash(); }
+  inline bool equals(const NativeCallStack& stack) const {
+    return _malloc_site.equals(stack);
+  }
+  // Allocation/deallocation on this allocation site
+  inline void allocate(size_t size)   { _malloc_site.allocate(size);   }
+  inline void deallocate(size_t size) { _malloc_site.deallocate(size); }
+  // Memory counters
+  inline size_t size() const  { return _malloc_site.size();  }
+  inline size_t count() const { return _malloc_site.count(); }
+};
+
+// The walker walks every entry on MallocSiteTable
+class MallocSiteWalker : public StackObj {
+ public:
+   virtual bool do_malloc_site(const MallocSite* e) { return false; }
+};
+
+/*
+ * Native memory tracking call site table.
+ * The table is only needed when detail tracking is enabled.
+ */
+class MallocSiteTable : AllStatic {
+ private:
+  // The number of hash bucket in this hashtable. The number should
+  // be tuned if malloc activities changed significantly.
+  // The statistics data can be obtained via Jcmd
+  // jcmd <pid> VM.native_memory statistics.
+
+  // Currently, (number of buckets / number of entires) ratio is
+  // about 1 / 6
+  enum {
+    table_base_size = 128,   // The base size is calculated from statistics to give
+                             // table ratio around 1:6
+    table_size = (table_base_size * NMT_TrackingStackDepth - 1)
+  };
+
+
+  // This is a very special lock, that allows multiple shared accesses (sharedLock), but
+  // once exclusive access (exclusiveLock) is requested, all shared accesses are
+  // rejected forever.
+  class AccessLock : public StackObj {
+    enum LockState {
+      NoLock,
+      SharedLock,
+      ExclusiveLock
+    };
+
+   private:
+    // A very large negative number. The only possibility to "overflow"
+    // this number is when there are more than -min_jint threads in
+    // this process, which is not going to happen in foreseeable future.
+    const static int _MAGIC_ = min_jint;
+
+    LockState      _lock_state;
+    volatile int*  _lock;
+   public:
+    AccessLock(volatile int* lock) :
+      _lock(lock), _lock_state(NoLock) {
+    }
+
+    ~AccessLock() {
+      if (_lock_state == SharedLock) {
+        Atomic::dec((volatile jint*)_lock);
+      }
+    }
+    // Acquire shared lock.
+    // Return true if shared access is granted.
+    inline bool sharedLock() {
+      jint res = Atomic::add(1, _lock);
+      if (res < 0) {
+        Atomic::add(-1, _lock);
+        return false;
+      }
+      _lock_state = SharedLock;
+      return true;
+    }
+    // Acquire exclusive lock
+    void exclusiveLock();
+ };
+
+ public:
+  static bool initialize();
+  static void shutdown();
+
+  NOT_PRODUCT(static int access_peak_count() { return _peak_count; })
+
+  // Number of hash buckets
+  static inline int hash_buckets()      { return (int)table_size; }
+
+  // Access and copy a call stack from this table. Shared lock should be
+  // acquired before access the entry.
+  static inline bool access_stack(NativeCallStack& stack, size_t bucket_idx,
+    size_t pos_idx) {
+    AccessLock locker(&_access_count);
+    if (locker.sharedLock()) {
+      NOT_PRODUCT(_peak_count = MAX2(_peak_count, _access_count);)
+      MallocSite* site = malloc_site(bucket_idx, pos_idx);
+      if (site != NULL) {
+        stack = *site->call_stack();
+        return true;
+      }
+    }
+    return false;
+  }
+
+  // Record a new allocation from specified call path.
+  // Return true if the allocation is recorded successfully, bucket_idx
+  // and pos_idx are also updated to indicate the entry where the allocation
+  // information was recorded.
+  // Return false only occurs under rare scenarios:
+  //  1. out of memory
+  //  2. overflow hash bucket
+  static inline bool allocation_at(const NativeCallStack& stack, size_t size,
+    size_t* bucket_idx, size_t* pos_idx) {
+    AccessLock locker(&_access_count);
+    if (locker.sharedLock()) {
+      NOT_PRODUCT(_peak_count = MAX2(_peak_count, _access_count);)
+      MallocSite* site = lookup_or_add(stack, bucket_idx, pos_idx);
+      if (site != NULL) site->allocate(size);
+      return site != NULL;
+    }
+    return false;
+  }
+
+  // Record memory deallocation. bucket_idx and pos_idx indicate where the allocation
+  // information was recorded.
+  static inline bool deallocation_at(size_t size, size_t bucket_idx, size_t pos_idx) {
+    AccessLock locker(&_access_count);
+    if (locker.sharedLock()) {
+      NOT_PRODUCT(_peak_count = MAX2(_peak_count, _access_count);)
+      MallocSite* site = malloc_site(bucket_idx, pos_idx);
+      if (site != NULL) {
+        site->deallocate(size);
+        return true;
+      }
+    }
+    return false;
+  }
+
+  // Walk this table.
+  static bool walk_malloc_site(MallocSiteWalker* walker);
+
+ private:
+  static MallocSiteHashtableEntry* new_entry(const NativeCallStack& key);
+  static void reset();
+
+  // Delete a bucket linked list
+  static void delete_linked_list(MallocSiteHashtableEntry* head);
+
+  static MallocSite* lookup_or_add(const NativeCallStack& key, size_t* bucket_idx, size_t* pos_idx);
+  static MallocSite* malloc_site(size_t bucket_idx, size_t pos_idx);
+  static bool walk(MallocSiteWalker* walker);
+
+  static inline int hash_to_index(int  hash) {
+    hash = (hash > 0) ? hash : (-hash);
+    return (hash % table_size);
+  }
+
+  static inline const NativeCallStack* hash_entry_allocation_stack() {
+    return (NativeCallStack*)_hash_entry_allocation_stack;
+  }
+
+ private:
+  // Counter for counting concurrent access
+  static volatile int                _access_count;
+
+  // The callsite hashtable. It has to be a static table,
+  // since malloc call can come from C runtime linker.
+  static MallocSiteHashtableEntry*   _table[table_size];
+
+
+  // Reserve enough memory for placing the objects
+
+  // The memory for hashtable entry allocation stack object
+  static size_t _hash_entry_allocation_stack[CALC_OBJ_SIZE_IN_TYPE(NativeCallStack, size_t)];
+  // The memory for hashtable entry allocation callsite object
+  static size_t _hash_entry_allocation_site[CALC_OBJ_SIZE_IN_TYPE(MallocSiteHashtableEntry, size_t)];
+  NOT_PRODUCT(static int     _peak_count;)
+};
+
+#endif // INCLUDE_NMT
+#endif // SHARE_VM_SERVICES_MALLOC_SITE_TABLE_HPP
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/services/mallocTracker.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -0,0 +1,200 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+#include "precompiled.hpp"
+
+#include "runtime/atomic.hpp"
+#include "runtime/atomic.inline.hpp"
+#include "services/mallocSiteTable.hpp"
+#include "services/mallocTracker.hpp"
+#include "services/mallocTracker.inline.hpp"
+#include "services/memTracker.hpp"
+
+size_t MallocMemorySummary::_snapshot[CALC_OBJ_SIZE_IN_TYPE(MallocMemorySnapshot, size_t)];
+
+// Total malloc'd memory amount
+size_t MallocMemorySnapshot::total() const {
+  size_t amount = 0;
+  for (int index = 0; index < mt_number_of_types; index ++) {
+    amount += _malloc[index].malloc_size();
+  }
+  amount += _tracking_header.size() + total_arena();
+  return amount;
+}
+
+// Total malloc'd memory used by arenas
+size_t MallocMemorySnapshot::total_arena() const {
+  size_t amount = 0;
+  for (int index = 0; index < mt_number_of_types; index ++) {
+    amount += _malloc[index].arena_size();
+  }
+  return amount;
+}
+
+
+void MallocMemorySnapshot::reset() {
+  _tracking_header.reset();
+  for (int index = 0; index < mt_number_of_types; index ++) {
+    _malloc[index].reset();
+  }
+}
+
+// Make adjustment by subtracting chunks used by arenas
+// from total chunks to get total free chunck size
+void MallocMemorySnapshot::make_adjustment() {
+  size_t arena_size = total_arena();
+  int chunk_idx = NMTUtil::flag_to_index(mtChunk);
+  _malloc[chunk_idx].record_free(arena_size);
+}
+
+
+void MallocMemorySummary::initialize() {
+  assert(sizeof(_snapshot) >= sizeof(MallocMemorySnapshot), "Sanity Check");
+  // Uses placement new operator to initialize static area.
+  ::new ((void*)_snapshot)MallocMemorySnapshot();
+}
+
+void MallocHeader::release() const {
+  // Tracking already shutdown, no housekeeping is needed anymore
+  if (MemTracker::tracking_level() <= NMT_minimal) return;
+
+  MallocMemorySummary::record_free(size(), flags());
+  MallocMemorySummary::record_free_malloc_header(sizeof(MallocHeader));
+  if (tracking_level() == NMT_detail) {
+    MallocSiteTable::deallocation_at(size(), _bucket_idx, _pos_idx);
+  }
+}
+
+bool MallocHeader::record_malloc_site(const NativeCallStack& stack, size_t size,
+  size_t* bucket_idx, size_t* pos_idx) const {
+  bool ret =  MallocSiteTable::allocation_at(stack, size, bucket_idx, pos_idx);
+
+  // Something went wrong, could be OOM or overflow malloc site table.
+  // We want to keep tracking data under OOM circumstance, so transition to
+  // summary tracking.
+  if (!ret) {
+    MemTracker::transition_to(NMT_summary);
+  }
+  return ret;
+}
+
+bool MallocHeader::get_stack(NativeCallStack& stack) const {
+  return MallocSiteTable::access_stack(stack, _bucket_idx, _pos_idx);
+}
+
+bool MallocTracker::initialize(NMT_TrackingLevel level) {
+  if (level >= NMT_summary) {
+    MallocMemorySummary::initialize();
+  }
+
+  if (level == NMT_detail) {
+    return MallocSiteTable::initialize();
+  }
+  return true;
+}
+
+bool MallocTracker::transition(NMT_TrackingLevel from, NMT_TrackingLevel to) {
+  assert(from != NMT_off, "Can not transition from off state");
+  assert(to != NMT_off, "Can not transition to off state");
+  if (from == NMT_minimal) {
+    MallocMemorySummary::reset();
+  }
+
+  if (to == NMT_detail) {
+    assert(from == NMT_minimal || from == NMT_summary, "Just check");
+    return MallocSiteTable::initialize();
+  } else if (from == NMT_detail) {
+    assert(to == NMT_minimal || to == NMT_summary, "Just check");
+    MallocSiteTable::shutdown();
+  }
+  return true;
+}
+
+// Record a malloc memory allocation
+void* MallocTracker::record_malloc(void* malloc_base, size_t size, MEMFLAGS flags,
+  const NativeCallStack& stack, NMT_TrackingLevel level) {
+  void*         memblock;      // the address for user data
+  MallocHeader* header = NULL;
+
+  if (malloc_base == NULL) {
+    return NULL;
+  }
+
+  // Check malloc size, size has to <= MAX_MALLOC_SIZE. This is only possible on 32-bit
+  // systems, when malloc size >= 1GB, but is is safe to assume it won't happen.
+  if (size > MAX_MALLOC_SIZE) {
+    fatal("Should not use malloc for big memory block, use virtual memory instead");
+  }
+  // Uses placement global new operator to initialize malloc header
+  switch(level) {
+    case NMT_off:
+      return malloc_base;
+    case NMT_minimal: {
+      MallocHeader* hdr = ::new (malloc_base) MallocHeader();
+      break;
+    }
+    case NMT_summary: {
+      header = ::new (malloc_base) MallocHeader(size, flags);
+      break;
+    }
+    case NMT_detail: {
+      header = ::new (malloc_base) MallocHeader(size, flags, stack);
+      break;
+    }
+    default:
+      ShouldNotReachHere();
+  }
+  memblock = (void*)((char*)malloc_base + sizeof(MallocHeader));
+
+  // The alignment check: 8 bytes alignment for 32 bit systems.
+  //                      16 bytes alignment for 64-bit systems.
+  assert(((size_t)memblock & (sizeof(size_t) * 2 - 1)) == 0, "Alignment check");
+
+  // Sanity check
+  assert(get_memory_tracking_level(memblock) == level,
+    "Wrong tracking level");
+
+#ifdef ASSERT
+  if (level > NMT_minimal) {
+    // Read back
+    assert(get_size(memblock) == size,   "Wrong size");
+    assert(get_flags(memblock) == flags, "Wrong flags");
+  }
+#endif
+
+  return memblock;
+}
+
+void* MallocTracker::record_free(void* memblock) {
+  // Never turned on
+  if (MemTracker::tracking_level() == NMT_off ||
+      memblock == NULL) {
+    return memblock;
+  }
+  MallocHeader* header = malloc_header(memblock);
+  header->release();
+
+  return (void*)header;
+}
+
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/services/mallocTracker.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -0,0 +1,424 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_SERVICES_MALLOC_TRACKER_HPP
+#define SHARE_VM_SERVICES_MALLOC_TRACKER_HPP
+
+#if INCLUDE_NMT
+
+#include "memory/allocation.hpp"
+#include "runtime/atomic.hpp"
+#include "services/nmtCommon.hpp"
+#include "utilities/nativeCallStack.hpp"
+
+/*
+ * This counter class counts memory allocation and deallocation,
+ * records total memory allocation size and number of allocations.
+ * The counters are updated atomically.
+ */
+class MemoryCounter VALUE_OBJ_CLASS_SPEC {
+ private:
+  size_t   _count;
+  size_t   _size;
+
+  DEBUG_ONLY(size_t   _peak_count;)
+  DEBUG_ONLY(size_t   _peak_size; )
+
+ public:
+  MemoryCounter() : _count(0), _size(0) {
+    DEBUG_ONLY(_peak_count = 0;)
+    DEBUG_ONLY(_peak_size  = 0;)
+  }
+
+  // Reset counters
+  void reset() {
+    _size  = 0;
+    _count = 0;
+    DEBUG_ONLY(_peak_size = 0;)
+    DEBUG_ONLY(_peak_count = 0;)
+  }
+
+  inline void allocate(size_t sz) {
+    Atomic::add(1, (volatile MemoryCounterType*)&_count);
+    if (sz > 0) {
+      Atomic::add((MemoryCounterType)sz, (volatile MemoryCounterType*)&_size);
+      DEBUG_ONLY(_peak_size = MAX2(_peak_size, _size));
+    }
+    DEBUG_ONLY(_peak_count = MAX2(_peak_count, _count);)
+  }
+
+  inline void deallocate(size_t sz) {
+    assert(_count > 0, "Negative counter");
+    assert(_size >= sz, "Negative size");
+    Atomic::add(-1, (volatile MemoryCounterType*)&_count);
+    if (sz > 0) {
+      Atomic::add(-(MemoryCounterType)sz, (volatile MemoryCounterType*)&_size);
+    }
+  }
+
+  inline void resize(long sz) {
+    if (sz != 0) {
+      Atomic::add((MemoryCounterType)sz, (volatile MemoryCounterType*)&_size);
+      DEBUG_ONLY(_peak_size = MAX2(_size, _peak_size);)
+    }
+  }
+
+  inline size_t count() const { return _count; }
+  inline size_t size()  const { return _size;  }
+  DEBUG_ONLY(inline size_t peak_count() const { return _peak_count; })
+  DEBUG_ONLY(inline size_t peak_size()  const { return _peak_size; })
+
+};
+
+/*
+ * Malloc memory used by a particular subsystem.
+ * It includes the memory acquired through os::malloc()
+ * call and arena's backing memory.
+ */
+class MallocMemory VALUE_OBJ_CLASS_SPEC {
+ private:
+  MemoryCounter _malloc;
+  MemoryCounter _arena;
+
+ public:
+  MallocMemory() { }
+
+  inline void record_malloc(size_t sz) {
+    _malloc.allocate(sz);
+  }
+
+  inline void record_free(size_t sz) {
+    _malloc.deallocate(sz);
+  }
+
+  inline void record_new_arena() {
+    _arena.allocate(0);
+  }
+
+  inline void record_arena_free() {
+    _arena.deallocate(0);
+  }
+
+  inline void record_arena_size_change(long sz) {
+    _arena.resize(sz);
+  }
+
+  void reset() {
+    _malloc.reset();
+    _arena.reset();
+  }
+
+  inline size_t malloc_size()  const { return _malloc.size(); }
+  inline size_t malloc_count() const { return _malloc.count();}
+  inline size_t arena_size()   const { return _arena.size();  }
+  inline size_t arena_count()  const { return _arena.count(); }
+
+  DEBUG_ONLY(inline const MemoryCounter& malloc_counter() const { return _malloc; })
+  DEBUG_ONLY(inline const MemoryCounter& arena_counter()  const { return _arena;  })
+};
+
+class MallocMemorySummary;
+
+// A snapshot of malloc'd memory, includes malloc memory
+// usage by types and memory used by tracking itself.
+class MallocMemorySnapshot : public ResourceObj {
+  friend class MallocMemorySummary;
+
+ private:
+  MallocMemory      _malloc[mt_number_of_types];
+  MemoryCounter     _tracking_header;
+
+
+ public:
+  inline MallocMemory*  by_type(MEMFLAGS flags) {
+    int index = NMTUtil::flag_to_index(flags);
+    return &_malloc[index];
+  }
+
+  inline MallocMemory* by_index(int index) {
+    assert(index >= 0, "Index out of bound");
+    assert(index < mt_number_of_types, "Index out of bound");
+    return &_malloc[index];
+  }
+
+  inline MemoryCounter* malloc_overhead() {
+    return &_tracking_header;
+  }
+
+  // Total malloc'd memory amount
+  size_t total() const;
+  // Total malloc'd memory used by arenas
+  size_t total_arena() const;
+
+  inline size_t thread_count() {
+    return by_type(mtThreadStack)->malloc_count();
+  }
+
+  void reset();
+
+  void copy_to(MallocMemorySnapshot* s) {
+    s->_tracking_header = _tracking_header;
+    for (int index = 0; index < mt_number_of_types; index ++) {
+      s->_malloc[index] = _malloc[index];
+    }
+  }
+
+  // Make adjustment by subtracting chunks used by arenas
+  // from total chunks to get total free chunk size
+  void make_adjustment();
+};
+
+/*
+ * This class is for collecting malloc statistics at summary level
+ */
+class MallocMemorySummary : AllStatic {
+ private:
+  // Reserve memory for placement of MallocMemorySnapshot object
+  static size_t _snapshot[CALC_OBJ_SIZE_IN_TYPE(MallocMemorySnapshot, size_t)];
+
+ public:
+   static void initialize();
+
+   static inline void record_malloc(size_t size, MEMFLAGS flag) {
+     as_snapshot()->by_type(flag)->record_malloc(size);
+   }
+
+   static inline void record_free(size_t size, MEMFLAGS flag) {
+     as_snapshot()->by_type(flag)->record_free(size);
+   }
+
+   static inline void record_new_arena(MEMFLAGS flag) {
+     as_snapshot()->by_type(flag)->record_new_arena();
+   }
+
+   static inline void record_arena_free(MEMFLAGS flag) {
+     as_snapshot()->by_type(flag)->record_arena_free();
+   }
+
+   static inline void record_arena_size_change(long size, MEMFLAGS flag) {
+     as_snapshot()->by_type(flag)->record_arena_size_change(size);
+   }
+
+   static void snapshot(MallocMemorySnapshot* s) {
+     as_snapshot()->copy_to(s);
+     s->make_adjustment();
+   }
+
+   // Record memory used by malloc tracking header
+   static inline void record_new_malloc_header(size_t sz) {
+     as_snapshot()->malloc_overhead()->allocate(sz);
+   }
+
+   static inline void record_free_malloc_header(size_t sz) {
+     as_snapshot()->malloc_overhead()->deallocate(sz);
+   }
+
+   // The memory used by malloc tracking headers
+   static inline size_t tracking_overhead() {
+     return as_snapshot()->malloc_overhead()->size();
+   }
+
+   // Reset all counters to zero
+   static void reset() {
+     as_snapshot()->reset();
+   }
+
+  static MallocMemorySnapshot* as_snapshot() {
+    return (MallocMemorySnapshot*)_snapshot;
+  }
+};
+
+
+/*
+ * Malloc tracking header.
+ * To satisfy malloc alignment requirement, NMT uses 2 machine words for tracking purpose,
+ * which ensures 8-bytes alignment on 32-bit systems and 16-bytes on 64-bit systems (Product build).
+ */
+
+class MallocHeader VALUE_OBJ_CLASS_SPEC {
+#ifdef _LP64
+  size_t           _size      : 62;
+  size_t           _level     : 2;
+  size_t           _flags     : 8;
+  size_t           _pos_idx   : 16;
+  size_t           _bucket_idx: 40;
+#define MAX_MALLOCSITE_TABLE_SIZE ((size_t)1 << 40)
+#define MAX_BUCKET_LENGTH         ((size_t)(1 << 16))
+#define MAX_MALLOC_SIZE           (((size_t)1 << 62) - 1)
+#else
+  size_t           _size      : 30;
+  size_t           _level     : 2;
+  size_t           _flags     : 8;
+  size_t           _pos_idx   : 8;
+  size_t           _bucket_idx: 16;
+#define MAX_MALLOCSITE_TABLE_SIZE  ((size_t)(1 << 16))
+#define MAX_BUCKET_LENGTH          ((size_t)(1 << 8))
+// Max malloc size = 1GB - 1 on 32 bit system, such has total 4GB memory
+#define MAX_MALLOC_SIZE            ((size_t)(1 << 30) - 1)
+#endif  // _LP64
+
+ public:
+  // Summary tracking header
+  MallocHeader(size_t size, MEMFLAGS flags) {
+    assert(sizeof(MallocHeader) == sizeof(void*) * 2,
+      "Wrong header size");
+
+    _level = NMT_summary;
+    _flags = flags;
+    set_size(size);
+    MallocMemorySummary::record_malloc(size, flags);
+    MallocMemorySummary::record_new_malloc_header(sizeof(MallocHeader));
+  }
+  // Detail tracking header
+  MallocHeader(size_t size, MEMFLAGS flags, const NativeCallStack& stack) {
+    assert(sizeof(MallocHeader) == sizeof(void*) * 2,
+      "Wrong header size");
+
+    _level = NMT_detail;
+    _flags = flags;
+    set_size(size);
+    size_t bucket_idx;
+    size_t pos_idx;
+    if (record_malloc_site(stack, size, &bucket_idx, &pos_idx)) {
+      assert(bucket_idx <= MAX_MALLOCSITE_TABLE_SIZE, "Overflow bucket index");
+      assert(pos_idx <= MAX_BUCKET_LENGTH, "Overflow bucket position index");
+      _bucket_idx = bucket_idx;
+      _pos_idx = pos_idx;
+    }
+    MallocMemorySummary::record_malloc(size, flags);
+    MallocMemorySummary::record_new_malloc_header(sizeof(MallocHeader));
+  }
+  // Minimal tracking header
+  MallocHeader() {
+    assert(sizeof(MallocHeader) == sizeof(void*) * 2,
+      "Wrong header size");
+
+    _level = (unsigned short)NMT_minimal;
+  }
+
+  inline NMT_TrackingLevel tracking_level() const {
+    return (NMT_TrackingLevel)_level;
+  }
+
+  inline size_t   size()  const { return _size; }
+  inline MEMFLAGS flags() const { return (MEMFLAGS)_flags; }
+  bool get_stack(NativeCallStack& stack) const;
+
+  // Cleanup tracking information before the memory is released.
+  void release() const;
+
+ private:
+  inline void set_size(size_t size) {
+    assert(size <= MAX_MALLOC_SIZE, "Malloc size too large, should use virtual memory?");
+    _size = size;
+  }
+  bool record_malloc_site(const NativeCallStack& stack, size_t size,
+    size_t* bucket_idx, size_t* pos_idx) const;
+};
+
+
+// Main class called from MemTracker to track malloc activities
+class MallocTracker : AllStatic {
+ public:
+  // Initialize malloc tracker for specific tracking level
+  static bool initialize(NMT_TrackingLevel level);
+
+  static bool transition(NMT_TrackingLevel from, NMT_TrackingLevel to);
+
+  // malloc tracking header size for specific tracking level
+  static inline size_t malloc_header_size(NMT_TrackingLevel level) {
+    return (level == NMT_off) ? 0 : sizeof(MallocHeader);
+  }
+
+  // Parameter name convention:
+  // memblock :   the beginning address for user data
+  // malloc_base: the beginning address that includes malloc tracking header
+  //
+  // The relationship:
+  // memblock = (char*)malloc_base + sizeof(nmt header)
+  //
+
+  // Record  malloc on specified memory block
+  static void* record_malloc(void* malloc_base, size_t size, MEMFLAGS flags,
+    const NativeCallStack& stack, NMT_TrackingLevel level);
+
+  // Record free on specified memory block
+  static void* record_free(void* memblock);
+
+  // Get tracking level of specified memory block
+  static inline NMT_TrackingLevel get_memory_tracking_level(void* memblock);
+
+
+  // Offset memory address to header address
+  static inline void* get_base(void* memblock);
+  static inline void* get_base(void* memblock, NMT_TrackingLevel level) {
+    if (memblock == NULL || level == NMT_off) return memblock;
+    return (char*)memblock - malloc_header_size(level);
+  }
+
+  // Get memory size
+  static inline size_t get_size(void* memblock) {
+    MallocHeader* header = malloc_header(memblock);
+    assert(header->tracking_level() >= NMT_summary,
+      "Wrong tracking level");
+    return header->size();
+  }
+
+  // Get memory type
+  static inline MEMFLAGS get_flags(void* memblock) {
+    MallocHeader* header = malloc_header(memblock);
+    assert(header->tracking_level() >= NMT_summary,
+      "Wrong tracking level");
+    return header->flags();
+  }
+
+  // Get header size
+  static inline size_t get_header_size(void* memblock) {
+    return (memblock == NULL) ? 0 : sizeof(MallocHeader);
+  }
+
+  static inline void record_new_arena(MEMFLAGS flags) {
+    MallocMemorySummary::record_new_arena(flags);
+  }
+
+  static inline void record_arena_free(MEMFLAGS flags) {
+    MallocMemorySummary::record_arena_free(flags);
+  }
+
+  static inline void record_arena_size_change(int size, MEMFLAGS flags) {
+    MallocMemorySummary::record_arena_size_change(size, flags);
+  }
+ private:
+  static inline MallocHeader* malloc_header(void *memblock) {
+    assert(memblock != NULL, "NULL pointer");
+    MallocHeader* header = (MallocHeader*)((char*)memblock - sizeof(MallocHeader));
+    assert(header->tracking_level() >= NMT_minimal, "Bad header");
+    return header;
+  }
+};
+
+#endif // INCLUDE_NMT
+
+
+#endif //SHARE_VM_SERVICES_MALLOC_TRACKER_HPP
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/services/mallocTracker.inline.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_SERVICES_MALLOC_TRACKER_INLINE_HPP
+#define SHARE_VM_SERVICES_MALLOC_TRACKER_INLINE_HPP
+
+#include "services/mallocTracker.hpp"
+#include "services/memTracker.hpp"
+
+inline NMT_TrackingLevel MallocTracker::get_memory_tracking_level(void* memblock) {
+  assert(memblock != NULL, "Sanity check");
+  if (MemTracker::tracking_level() == NMT_off) return NMT_off;
+  MallocHeader* header = malloc_header(memblock);
+  return header->tracking_level();
+}
+
+inline void* MallocTracker::get_base(void* memblock){
+  return get_base(memblock, MemTracker::tracking_level());
+}
+
+#endif // SHARE_VM_SERVICES_MALLOC_TRACKER_INLINE_HPP
+
--- a/hotspot/src/share/vm/services/management.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/services/management.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1920,7 +1920,7 @@
   ResourceMark rm(THREAD); // thread->name() uses ResourceArea
 
   assert(thread->name() != NULL, "All threads should have a name");
-  _names_chars[_count] = strdup(thread->name());
+  _names_chars[_count] = os::strdup(thread->name());
   _times->long_at_put(_count, os::is_thread_cpu_time_supported() ?
                         os::thread_cpu_time(thread) : -1);
   _count++;
@@ -1938,7 +1938,7 @@
 
 ThreadTimesClosure::~ThreadTimesClosure() {
   for (int i = 0; i < _count; i++) {
-    free(_names_chars[i]);
+    os::free(_names_chars[i]);
   }
   FREE_C_HEAP_ARRAY(char *, _names_chars, mtInternal);
 }
--- a/hotspot/src/share/vm/services/memBaseline.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/services/memBaseline.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -22,471 +22,301 @@
  *
  */
 #include "precompiled.hpp"
+
 #include "memory/allocation.hpp"
 #include "runtime/safepoint.hpp"
 #include "runtime/thread.inline.hpp"
 #include "services/memBaseline.hpp"
 #include "services/memTracker.hpp"
 
-
-MemType2Name MemBaseline::MemType2NameMap[NUMBER_OF_MEMORY_TYPE] = {
-  {mtJavaHeap,   "Java Heap"},
-  {mtClass,      "Class"},
-  {mtThreadStack,"Thread Stack"},
-  {mtThread,     "Thread"},
-  {mtCode,       "Code"},
-  {mtGC,         "GC"},
-  {mtCompiler,   "Compiler"},
-  {mtInternal,   "Internal"},
-  {mtOther,      "Other"},
-  {mtSymbol,     "Symbol"},
-  {mtNMT,        "Memory Tracking"},
-  {mtTracing,    "Tracing"},
-  {mtChunk,      "Pooled Free Chunks"},
-  {mtClassShared,"Shared spaces for classes"},
-  {mtTest,       "Test"},
-  {mtNone,       "Unknown"}  // It can happen when type tagging records are lagging
-                             // behind
-};
-
-MemBaseline::MemBaseline() {
-  _baselined = false;
-
-  for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
-    _malloc_data[index].set_type(MemType2NameMap[index]._flag);
-    _vm_data[index].set_type(MemType2NameMap[index]._flag);
-    _arena_data[index].set_type(MemType2NameMap[index]._flag);
+/*
+ * Sizes are sorted in descenting order for reporting
+ */
+int compare_malloc_size(const MallocSite& s1, const MallocSite& s2) {
+  if (s1.size() == s2.size()) {
+    return 0;
+  } else if (s1.size() > s2.size()) {
+    return -1;
+  } else {
+    return 1;
   }
-
-  _malloc_cs = NULL;
-  _vm_cs = NULL;
-  _vm_map = NULL;
-
-  _number_of_classes = 0;
-  _number_of_threads = 0;
 }
 
 
-void MemBaseline::clear() {
-  if (_malloc_cs != NULL) {
-    delete _malloc_cs;
-    _malloc_cs = NULL;
+int compare_virtual_memory_size(const VirtualMemoryAllocationSite& s1,
+  const VirtualMemoryAllocationSite& s2) {
+  if (s1.reserved() == s2.reserved()) {
+    return 0;
+  } else if (s1.reserved() > s2.reserved()) {
+    return -1;
+  } else {
+    return 1;
   }
+}
 
-  if (_vm_cs != NULL) {
-    delete _vm_cs;
-    _vm_cs = NULL;
-  }
-
-  if (_vm_map != NULL) {
-    delete _vm_map;
-    _vm_map = NULL;
-  }
-
-  reset();
+// Sort into allocation site addresses order for baseline comparison
+int compare_malloc_site(const MallocSite& s1, const MallocSite& s2) {
+  return s1.call_stack()->compare(*s2.call_stack());
 }
 
 
-void MemBaseline::reset() {
-  _baselined = false;
-  _total_vm_reserved = 0;
-  _total_vm_committed = 0;
-  _total_malloced = 0;
-  _number_of_classes = 0;
-
-  if (_malloc_cs != NULL) _malloc_cs->clear();
-  if (_vm_cs != NULL) _vm_cs->clear();
-  if (_vm_map != NULL) _vm_map->clear();
-
-  for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
-    _malloc_data[index].clear();
-    _vm_data[index].clear();
-    _arena_data[index].clear();
-  }
+int compare_virtual_memory_site(const VirtualMemoryAllocationSite& s1,
+  const VirtualMemoryAllocationSite& s2) {
+  return s1.call_stack()->compare(*s2.call_stack());
 }
 
-MemBaseline::~MemBaseline() {
-  clear();
+/*
+ * Walker to walk malloc allocation site table
+ */
+class MallocAllocationSiteWalker : public MallocSiteWalker {
+ private:
+  SortedLinkedList<MallocSite, compare_malloc_size, ResourceObj::ARENA>
+                 _malloc_sites;
+  size_t         _count;
+
+  // Entries in MallocSiteTable with size = 0 and count = 0,
+  // when the malloc site is not longer there.
+ public:
+  MallocAllocationSiteWalker(Arena* arena) : _count(0), _malloc_sites(arena) {
+  }
+
+  inline size_t count() const { return _count; }
+
+  LinkedList<MallocSite>* malloc_sites() {
+    return &_malloc_sites;
+  }
+
+  bool do_malloc_site(const MallocSite* site) {
+    if (site->size() >= MemBaseline::SIZE_THRESHOLD) {
+      if (_malloc_sites.add(*site) != NULL) {
+        _count++;
+        return true;
+      } else {
+        return false;  // OOM
+      }
+    } else {
+      // malloc site does not meet threshold, ignore and continue
+      return true;
+    }
+  }
+};
+
+// Compare virtual memory region's base address
+int compare_virtual_memory_base(const ReservedMemoryRegion& r1, const ReservedMemoryRegion& r2) {
+  return r1.compare(r2);
 }
 
-// baseline malloc'd memory records, generate overall summary and summaries by
-// memory types
-bool MemBaseline::baseline_malloc_summary(const MemPointerArray* malloc_records) {
-  MemPointerArrayIteratorImpl malloc_itr((MemPointerArray*)malloc_records);
-  MemPointerRecord* malloc_ptr = (MemPointerRecord*)malloc_itr.current();
-  size_t used_arena_size = 0;
-  int index;
-  while (malloc_ptr != NULL) {
-    index = flag2index(FLAGS_TO_MEMORY_TYPE(malloc_ptr->flags()));
-    size_t size = malloc_ptr->size();
-    if (malloc_ptr->is_arena_memory_record()) {
-      // We do have anonymous arenas, they are either used as value objects,
-      // which are embedded inside other objects, or used as stack objects.
-      _arena_data[index].inc(size);
-      used_arena_size += size;
-    } else {
-      _total_malloced += size;
-      _malloc_data[index].inc(size);
-      if (malloc_ptr->is_arena_record()) {
-        // see if arena memory record present
-        MemPointerRecord* next_malloc_ptr = (MemPointerRecordEx*)malloc_itr.peek_next();
-        if (next_malloc_ptr != NULL && next_malloc_ptr->is_arena_memory_record()) {
-          assert(next_malloc_ptr->is_memory_record_of_arena(malloc_ptr),
-             "Arena records do not match");
-          size = next_malloc_ptr->size();
-          _arena_data[index].inc(size);
-          used_arena_size += size;
-          malloc_itr.next();
-        }
+// Walk all virtual memory regions for baselining
+class VirtualMemoryAllocationWalker : public VirtualMemoryWalker {
+ private:
+  SortedLinkedList<ReservedMemoryRegion, compare_virtual_memory_base, ResourceObj::ARENA>
+                _virtual_memory_regions;
+  size_t        _count;
+
+ public:
+  VirtualMemoryAllocationWalker(Arena* a) : _count(0), _virtual_memory_regions(a) {
+  }
+
+  bool do_allocation_site(const ReservedMemoryRegion* rgn)  {
+    if (rgn->size() >= MemBaseline::SIZE_THRESHOLD) {
+      if (_virtual_memory_regions.add(*rgn) != NULL) {
+        _count ++;
+        return true;
+      } else {
+        return false;
       }
     }
-    malloc_ptr = (MemPointerRecordEx*)malloc_itr.next();
+    return true;
   }
 
-  // substract used arena size to get size of arena chunk in free list
-  index = flag2index(mtChunk);
-  _malloc_data[index].reduce(used_arena_size);
-  // we really don't know how many chunks in free list, so just set to
-  // 0
-  _malloc_data[index].overwrite_counter(0);
+  LinkedList<ReservedMemoryRegion>* virtual_memory_allocations() {
+    return &_virtual_memory_regions;
+  }
+};
+
+
+bool MemBaseline::baseline_summary() {
+  assert(_malloc_memory_snapshot == NULL, "Malloc baseline not yet reset");
+  assert(_virtual_memory_snapshot == NULL, "Virtual baseline not yet reset");
+
+  _malloc_memory_snapshot =  new (arena()) MallocMemorySnapshot();
+  _virtual_memory_snapshot = new (arena()) VirtualMemorySnapshot();
+  if (_malloc_memory_snapshot == NULL || _virtual_memory_snapshot == NULL) {
+    return false;
+  }
+  MallocMemorySummary::snapshot(_malloc_memory_snapshot);
+  VirtualMemorySummary::snapshot(_virtual_memory_snapshot);
+  return true;
+}
+
+bool MemBaseline::baseline_allocation_sites() {
+  assert(arena() != NULL, "Just check");
+  // Malloc allocation sites
+  MallocAllocationSiteWalker malloc_walker(arena());
+  if (!MallocSiteTable::walk_malloc_site(&malloc_walker)) {
+    return false;
+  }
+
+  _malloc_sites.set_head(malloc_walker.malloc_sites()->head());
+  // The malloc sites are collected in size order
+  _malloc_sites_order = by_size;
+
+  // Virtual memory allocation sites
+  VirtualMemoryAllocationWalker virtual_memory_walker(arena());
+  if (!VirtualMemoryTracker::walk_virtual_memory(&virtual_memory_walker)) {
+    return false;
+  }
+
+  // Virtual memory allocations are collected in call stack order
+  _virtual_memory_allocations.set_head(virtual_memory_walker.virtual_memory_allocations()->head());
+
+  if (!aggregate_virtual_memory_allocation_sites()) {
+    return false;
+  }
+  // Virtual memory allocation sites are aggregrated in call stack order
+  _virtual_memory_sites_order = by_address;
 
   return true;
 }
 
-// check if there is a safepoint in progress, if so, block the thread
-// for the safepoint
-void MemBaseline::check_safepoint(JavaThread* thr) {
-  if (SafepointSynchronize::is_synchronizing()) {
-    // grab and drop the SR_lock to honor the safepoint protocol
-    MutexLocker ml(thr->SR_lock());
-  }
-}
-
-// baseline mmap'd memory records, generate overall summary and summaries by
-// memory types
-bool MemBaseline::baseline_vm_summary(const MemPointerArray* vm_records) {
-  MemPointerArrayIteratorImpl vm_itr((MemPointerArray*)vm_records);
-  VMMemRegion* vm_ptr = (VMMemRegion*)vm_itr.current();
-  int index;
-  while (vm_ptr != NULL) {
-    if (vm_ptr->is_reserved_region()) {
-      index = flag2index(FLAGS_TO_MEMORY_TYPE(vm_ptr->flags()));
-    // we use the number of thread stack to count threads
-      if (IS_MEMORY_TYPE(vm_ptr->flags(), mtThreadStack)) {
-      _number_of_threads ++;
-    }
-      _total_vm_reserved += vm_ptr->size();
-      _vm_data[index].inc(vm_ptr->size(), 0);
-    } else {
-      _total_vm_committed += vm_ptr->size();
-      _vm_data[index].inc(0, vm_ptr->size());
-    }
-    vm_ptr = (VMMemRegion*)vm_itr.next();
-  }
-  return true;
-}
-
-// baseline malloc'd memory by callsites, but only the callsites with memory allocation
-// over 1KB are stored.
-bool MemBaseline::baseline_malloc_details(const MemPointerArray* malloc_records) {
-  assert(MemTracker::track_callsite(), "detail tracking is off");
-
-  MemPointerArrayIteratorImpl malloc_itr(const_cast<MemPointerArray*>(malloc_records));
-  MemPointerRecordEx* malloc_ptr = (MemPointerRecordEx*)malloc_itr.current();
-  MallocCallsitePointer malloc_callsite;
-
-  // initailize malloc callsite array
-  if (_malloc_cs == NULL) {
-    _malloc_cs = new (std::nothrow) MemPointerArrayImpl<MallocCallsitePointer>(64);
-    // out of native memory
-    if (_malloc_cs == NULL || _malloc_cs->out_of_memory()) {
-      return false;
-    }
-  } else {
-    _malloc_cs->clear();
-  }
-
-  MemPointerArray* malloc_data = const_cast<MemPointerArray*>(malloc_records);
-
-  // sort into callsite pc order. Details are aggregated by callsites
-  malloc_data->sort((FN_SORT)malloc_sort_by_pc);
-  bool ret = true;
-
-  // baseline memory that is totaled over 1 KB
-  while (malloc_ptr != NULL) {
-    if (!MemPointerRecord::is_arena_memory_record(malloc_ptr->flags())) {
-      // skip thread stacks
-      if (!IS_MEMORY_TYPE(malloc_ptr->flags(), mtThreadStack)) {
-        if (malloc_callsite.addr() != malloc_ptr->pc()) {
-          if ((malloc_callsite.amount()/K) > 0) {
-            if (!_malloc_cs->append(&malloc_callsite)) {
-              ret = false;
-              break;
-            }
-          }
-          malloc_callsite = MallocCallsitePointer(malloc_ptr->pc());
-        }
-        malloc_callsite.inc(malloc_ptr->size());
-      }
-    }
-    malloc_ptr = (MemPointerRecordEx*)malloc_itr.next();
+bool MemBaseline::baseline(bool summaryOnly) {
+  if (arena() == NULL) {
+    _arena = new (std::nothrow, mtNMT) Arena(mtNMT);
+    if (arena() == NULL) return false;
   }
 
-  // restore to address order. Snapshot malloc data is maintained in memory
-  // address order.
-  malloc_data->sort((FN_SORT)malloc_sort_by_addr);
-
-  if (!ret) {
-              return false;
-            }
-  // deal with last record
-  if (malloc_callsite.addr() != 0 && (malloc_callsite.amount()/K) > 0) {
-    if (!_malloc_cs->append(&malloc_callsite)) {
-      return false;
-    }
-  }
-  return true;
-}
-
-// baseline mmap'd memory by callsites
-bool MemBaseline::baseline_vm_details(const MemPointerArray* vm_records) {
-  assert(MemTracker::track_callsite(), "detail tracking is off");
-
-  VMCallsitePointer  vm_callsite;
-  VMCallsitePointer* cur_callsite = NULL;
-  MemPointerArrayIteratorImpl vm_itr((MemPointerArray*)vm_records);
-  VMMemRegionEx* vm_ptr = (VMMemRegionEx*)vm_itr.current();
-
-  // initialize virtual memory map array
-  if (_vm_map == NULL) {
-    _vm_map = new (std::nothrow) MemPointerArrayImpl<VMMemRegionEx>(vm_records->length());
-   if (_vm_map == NULL || _vm_map->out_of_memory()) {
-     return false;
-   }
-  } else {
-    _vm_map->clear();
-  }
-
-  // initialize virtual memory callsite array
-  if (_vm_cs == NULL) {
-    _vm_cs = new (std::nothrow) MemPointerArrayImpl<VMCallsitePointer>(64);
-    if (_vm_cs == NULL || _vm_cs->out_of_memory()) {
-      return false;
-    }
-  } else {
-    _vm_cs->clear();
-  }
-
-  // consolidate virtual memory data
-  VMMemRegionEx*     reserved_rec = NULL;
-  VMMemRegionEx*     committed_rec = NULL;
+  reset();
 
-  // vm_ptr is coming in increasing base address order
-  while (vm_ptr != NULL) {
-    if (vm_ptr->is_reserved_region()) {
-      // consolidate reserved memory regions for virtual memory map.
-      // The criteria for consolidation is:
-      // 1. two adjacent reserved memory regions
-      // 2. belong to the same memory type
-      // 3. reserved from the same callsite
-      if (reserved_rec == NULL ||
-        reserved_rec->base() + reserved_rec->size() != vm_ptr->addr() ||
-        FLAGS_TO_MEMORY_TYPE(reserved_rec->flags()) != FLAGS_TO_MEMORY_TYPE(vm_ptr->flags()) ||
-        reserved_rec->pc() != vm_ptr->pc()) {
-        if (!_vm_map->append(vm_ptr)) {
-        return false;
-      }
-        // inserted reserved region, we need the pointer to the element in virtual
-        // memory map array.
-        reserved_rec = (VMMemRegionEx*)_vm_map->at(_vm_map->length() - 1);
-      } else {
-        reserved_rec->expand_region(vm_ptr->addr(), vm_ptr->size());
-    }
+  _class_count = InstanceKlass::number_of_instance_classes();
 
-      if (cur_callsite != NULL && !_vm_cs->append(cur_callsite)) {
-      return false;
-    }
-      vm_callsite = VMCallsitePointer(vm_ptr->pc());
-      cur_callsite = &vm_callsite;
-      vm_callsite.inc(vm_ptr->size(), 0);
-    } else {
-      // consolidate committed memory regions for virtual memory map
-      // The criterial is:
-      // 1. two adjacent committed memory regions
-      // 2. committed from the same callsite
-      if (committed_rec == NULL ||
-        committed_rec->base() + committed_rec->size() != vm_ptr->addr() ||
-        committed_rec->pc() != vm_ptr->pc()) {
-        if (!_vm_map->append(vm_ptr)) {
-          return false;
-        }
-        committed_rec = (VMMemRegionEx*)_vm_map->at(_vm_map->length() - 1);
-    } else {
-        committed_rec->expand_region(vm_ptr->addr(), vm_ptr->size());
-      }
-      vm_callsite.inc(0, vm_ptr->size());
-    }
-    vm_ptr = (VMMemRegionEx*)vm_itr.next();
-  }
-  // deal with last record
-  if (cur_callsite != NULL && !_vm_cs->append(cur_callsite)) {
+  if (!baseline_summary()) {
     return false;
   }
 
-  // sort it into callsite pc order. Details are aggregated by callsites
-  _vm_cs->sort((FN_SORT)bl_vm_sort_by_pc);
+  _baseline_type = Summary_baselined;
 
-  // walk the array to consolidate record by pc
-  MemPointerArrayIteratorImpl itr(_vm_cs);
-  VMCallsitePointer* callsite_rec = (VMCallsitePointer*)itr.current();
-  VMCallsitePointer* next_rec = (VMCallsitePointer*)itr.next();
-  while (next_rec != NULL) {
-    assert(callsite_rec != NULL, "Sanity check");
-    if (next_rec->addr() == callsite_rec->addr()) {
-      callsite_rec->inc(next_rec->reserved_amount(), next_rec->committed_amount());
-      itr.remove();
-      next_rec = (VMCallsitePointer*)itr.current();
-    } else {
-      callsite_rec = next_rec;
-      next_rec = (VMCallsitePointer*)itr.next();
-    }
+  // baseline details
+  if (!summaryOnly &&
+      MemTracker::tracking_level() == NMT_detail) {
+    baseline_allocation_sites();
+    _baseline_type = Detail_baselined;
   }
 
   return true;
 }
 
-// baseline a snapshot. If summary_only = false, memory usages aggregated by
-// callsites are also baselined.
-// The method call can be lengthy, especially when detail tracking info is
-// requested. So the method checks for safepoint explicitly.
-bool MemBaseline::baseline(MemSnapshot& snapshot, bool summary_only) {
-  Thread* THREAD = Thread::current();
-  assert(THREAD->is_Java_thread(), "must be a JavaThread");
-  MutexLocker snapshot_locker(snapshot._lock);
-  reset();
-  _baselined = baseline_malloc_summary(snapshot._alloc_ptrs);
-  if (_baselined) {
-    check_safepoint((JavaThread*)THREAD);
-    _baselined = baseline_vm_summary(snapshot._vm_ptrs);
+int compare_allocation_site(const VirtualMemoryAllocationSite& s1,
+  const VirtualMemoryAllocationSite& s2) {
+  return s1.call_stack()->compare(*s2.call_stack());
+}
+
+bool MemBaseline::aggregate_virtual_memory_allocation_sites() {
+  SortedLinkedList<VirtualMemoryAllocationSite, compare_allocation_site, ResourceObj::ARENA>
+    allocation_sites(arena());
+
+  VirtualMemoryAllocationIterator itr = virtual_memory_allocations();
+  const ReservedMemoryRegion* rgn;
+  VirtualMemoryAllocationSite* site;
+  while ((rgn = itr.next()) != NULL) {
+    VirtualMemoryAllocationSite tmp(*rgn->call_stack());
+    site = allocation_sites.find(tmp);
+    if (site == NULL) {
+      LinkedListNode<VirtualMemoryAllocationSite>* node =
+        allocation_sites.add(tmp);
+      if (node == NULL) return false;
+      site = node->data();
+    }
+    site->reserve_memory(rgn->size());
+    site->commit_memory(rgn->committed_size());
   }
-  _number_of_classes = snapshot.number_of_classes();
 
-  if (!summary_only && MemTracker::track_callsite() && _baselined) {
-    check_safepoint((JavaThread*)THREAD);
-    _baselined =  baseline_malloc_details(snapshot._alloc_ptrs);
-    if (_baselined) {
-      check_safepoint((JavaThread*)THREAD);
-      _baselined =  baseline_vm_details(snapshot._vm_ptrs);
-    }
-  }
-  return _baselined;
+  _virtual_memory_sites.set_head(allocation_sites.head());
+  return true;
 }
 
-
-int MemBaseline::flag2index(MEMFLAGS flag) const {
-  for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
-    if (MemType2NameMap[index]._flag == flag) {
-      return index;
-    }
+MallocSiteIterator MemBaseline::malloc_sites(SortingOrder order) {
+  assert(!_malloc_sites.is_empty(), "Detail baseline?");
+  switch(order) {
+    case by_size:
+      malloc_sites_to_size_order();
+      break;
+    case by_site:
+      malloc_sites_to_allocation_site_order();
+      break;
+    case by_address:
+    default:
+      ShouldNotReachHere();
   }
-  assert(false, "no type");
-  return -1;
+  return MallocSiteIterator(_malloc_sites.head());
 }
 
-const char* MemBaseline::type2name(MEMFLAGS type) {
-  for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
-    if (MemType2NameMap[index]._flag == type) {
-      return MemType2NameMap[index]._name;
-    }
+VirtualMemorySiteIterator MemBaseline::virtual_memory_sites(SortingOrder order) {
+  assert(!_virtual_memory_sites.is_empty(), "Detail baseline?");
+  switch(order) {
+    case by_size:
+      virtual_memory_sites_to_size_order();
+      break;
+    case by_site:
+      virtual_memory_sites_to_reservation_site_order();
+      break;
+    case by_address:
+    default:
+      ShouldNotReachHere();
   }
-  assert(false, err_msg("bad type %x", type));
-  return NULL;
+  return VirtualMemorySiteIterator(_virtual_memory_sites.head());
 }
 
 
-MemBaseline& MemBaseline::operator=(const MemBaseline& other) {
-  _total_malloced = other._total_malloced;
-  _total_vm_reserved = other._total_vm_reserved;
-  _total_vm_committed = other._total_vm_committed;
-
-  _baselined = other._baselined;
-  _number_of_classes = other._number_of_classes;
-
-  for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
-    _malloc_data[index] = other._malloc_data[index];
-    _vm_data[index] = other._vm_data[index];
-    _arena_data[index] = other._arena_data[index];
-  }
+// Sorting allocations sites in different orders
+void MemBaseline::malloc_sites_to_size_order() {
+  if (_malloc_sites_order != by_size) {
+    SortedLinkedList<MallocSite, compare_malloc_size, ResourceObj::ARENA>
+      tmp(arena());
 
-  if (MemTracker::track_callsite()) {
-    assert(_malloc_cs != NULL && _vm_cs != NULL, "out of memory");
-    assert(other._malloc_cs != NULL && other._vm_cs != NULL,
-           "not properly baselined");
-    _malloc_cs->clear();
-    _vm_cs->clear();
-    int index;
-    for (index = 0; index < other._malloc_cs->length(); index ++) {
-      _malloc_cs->append(other._malloc_cs->at(index));
-    }
-
-    for (index = 0; index < other._vm_cs->length(); index ++) {
-      _vm_cs->append(other._vm_cs->at(index));
-    }
+    // Add malloc sites to sorted linked list to sort into size order
+    tmp.move(&_malloc_sites);
+    _malloc_sites.set_head(tmp.head());
+    tmp.set_head(NULL);
+    _malloc_sites_order = by_size;
   }
-  return *this;
 }
 
-/* compare functions for sorting */
-
-// sort snapshot malloc'd records in callsite pc order
-int MemBaseline::malloc_sort_by_pc(const void* p1, const void* p2) {
-  assert(MemTracker::track_callsite(),"Just check");
-  const MemPointerRecordEx* mp1 = (const MemPointerRecordEx*)p1;
-  const MemPointerRecordEx* mp2 = (const MemPointerRecordEx*)p2;
-  return UNSIGNED_COMPARE(mp1->pc(), mp2->pc());
+void MemBaseline::malloc_sites_to_allocation_site_order() {
+  if (_malloc_sites_order != by_site) {
+    SortedLinkedList<MallocSite, compare_malloc_site, ResourceObj::ARENA>
+      tmp(arena());
+    // Add malloc sites to sorted linked list to sort into site (address) order
+    tmp.move(&_malloc_sites);
+    _malloc_sites.set_head(tmp.head());
+    tmp.set_head(NULL);
+    _malloc_sites_order = by_site;
+  }
 }
 
-// sort baselined malloc'd records in size order
-int MemBaseline::bl_malloc_sort_by_size(const void* p1, const void* p2) {
-  assert(MemTracker::is_on(), "Just check");
-  const MallocCallsitePointer* mp1 = (const MallocCallsitePointer*)p1;
-  const MallocCallsitePointer* mp2 = (const MallocCallsitePointer*)p2;
-  return UNSIGNED_COMPARE(mp2->amount(), mp1->amount());
-}
+void MemBaseline::virtual_memory_sites_to_size_order() {
+  if (_virtual_memory_sites_order != by_size) {
+    SortedLinkedList<VirtualMemoryAllocationSite, compare_virtual_memory_size, ResourceObj::ARENA>
+      tmp(arena());
 
-// sort baselined malloc'd records in callsite pc order
-int MemBaseline::bl_malloc_sort_by_pc(const void* p1, const void* p2) {
-  assert(MemTracker::is_on(), "Just check");
-  const MallocCallsitePointer* mp1 = (const MallocCallsitePointer*)p1;
-  const MallocCallsitePointer* mp2 = (const MallocCallsitePointer*)p2;
-  return UNSIGNED_COMPARE(mp1->addr(), mp2->addr());
+    tmp.move(&_virtual_memory_sites);
+
+    _virtual_memory_sites.set_head(tmp.head());
+    tmp.set_head(NULL);
+    _virtual_memory_sites_order = by_size;
+  }
 }
 
+void MemBaseline::virtual_memory_sites_to_reservation_site_order() {
+  if (_virtual_memory_sites_order != by_size) {
+    SortedLinkedList<VirtualMemoryAllocationSite, compare_virtual_memory_site, ResourceObj::ARENA>
+      tmp(arena());
 
-// sort baselined mmap'd records in size (reserved size) order
-int MemBaseline::bl_vm_sort_by_size(const void* p1, const void* p2) {
-  assert(MemTracker::is_on(), "Just check");
-  const VMCallsitePointer* mp1 = (const VMCallsitePointer*)p1;
-  const VMCallsitePointer* mp2 = (const VMCallsitePointer*)p2;
-  return UNSIGNED_COMPARE(mp2->reserved_amount(), mp1->reserved_amount());
+    tmp.add(&_virtual_memory_sites);
+
+    _virtual_memory_sites.set_head(tmp.head());
+    tmp.set_head(NULL);
+
+    _virtual_memory_sites_order = by_size;
+  }
 }
 
-// sort baselined mmap'd records in callsite pc order
-int MemBaseline::bl_vm_sort_by_pc(const void* p1, const void* p2) {
-  assert(MemTracker::is_on(), "Just check");
-  const VMCallsitePointer* mp1 = (const VMCallsitePointer*)p1;
-  const VMCallsitePointer* mp2 = (const VMCallsitePointer*)p2;
-  return UNSIGNED_COMPARE(mp1->addr(), mp2->addr());
-}
-
-
-// sort snapshot malloc'd records in memory block address order
-int MemBaseline::malloc_sort_by_addr(const void* p1, const void* p2) {
-  assert(MemTracker::is_on(), "Just check");
-  const MemPointerRecord* mp1 = (const MemPointerRecord*)p1;
-  const MemPointerRecord* mp2 = (const MemPointerRecord*)p2;
-  int delta = UNSIGNED_COMPARE(mp1->addr(), mp2->addr());
-  assert(p1 == p2 || delta != 0, "dup pointer");
-  return delta;
-}
-
--- a/hotspot/src/share/vm/services/memBaseline.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/services/memBaseline.hpp	Thu Aug 14 18:42:08 2014 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -25,425 +25,205 @@
 #ifndef SHARE_VM_SERVICES_MEM_BASELINE_HPP
 #define SHARE_VM_SERVICES_MEM_BASELINE_HPP
 
+#if INCLUDE_NMT
+
 #include "memory/allocation.hpp"
 #include "runtime/mutex.hpp"
-#include "services/memPtr.hpp"
-#include "services/memSnapshot.hpp"
+#include "services/mallocSiteTable.hpp"
+#include "services/mallocTracker.hpp"
+#include "services/nmtCommon.hpp"
+#include "services/virtualMemoryTracker.hpp"
+#include "utilities/linkedlist.hpp"
 
-// compare unsigned number
-#define UNSIGNED_COMPARE(a, b)  ((a > b) ? 1 : ((a == b) ? 0 : -1))
+typedef LinkedListIterator<MallocSite>                   MallocSiteIterator;
+typedef LinkedListIterator<VirtualMemoryAllocationSite>  VirtualMemorySiteIterator;
+typedef LinkedListIterator<ReservedMemoryRegion>         VirtualMemoryAllocationIterator;
 
 /*
- * MallocCallsitePointer and VMCallsitePointer are used
- * to baseline memory blocks with their callsite information.
- * They are only available when detail tracking is turned
- * on.
+ * Baseline a memory snapshot
  */
-
-/* baselined malloc record aggregated by callsite */
-class MallocCallsitePointer : public MemPointer {
- private:
-  size_t    _count;   // number of malloc invocation from this callsite
-  size_t    _amount;  // total amount of memory malloc-ed from this callsite
-
+class MemBaseline VALUE_OBJ_CLASS_SPEC {
  public:
-  MallocCallsitePointer() {
-    _count = 0;
-    _amount = 0;
-  }
-
-  MallocCallsitePointer(address pc) : MemPointer(pc) {
-    _count = 0;
-    _amount = 0;
-  }
+  enum BaselineThreshold {
+    SIZE_THRESHOLD = K        // Only allocation size over this threshold will be baselined.
+  };
 
-  MallocCallsitePointer& operator=(const MallocCallsitePointer& p) {
-    MemPointer::operator=(p);
-    _count = p.count();
-    _amount = p.amount();
-    return *this;
-  }
+  enum BaselineType {
+    Not_baselined,
+    Summary_baselined,
+    Detail_baselined
+  };
 
-  inline void inc(size_t size) {
-    _count ++;
-    _amount += size;
+  enum SortingOrder {
+    by_address,   // by memory address
+    by_size,      // by memory size
+    by_site       // by call site where the memory is allocated from
   };
 
-  inline size_t count() const {
-    return _count;
-  }
+ private:
+  // All baseline data is stored in this arena
+  Arena*                  _arena;
+
+  // Summary information
+  MallocMemorySnapshot*   _malloc_memory_snapshot;
+  VirtualMemorySnapshot*  _virtual_memory_snapshot;
+
+  size_t               _class_count;
 
-  inline size_t amount() const {
-    return _amount;
-  }
-};
+  // Allocation sites information
+  // Malloc allocation sites
+  LinkedListImpl<MallocSite, ResourceObj::ARENA>
+                       _malloc_sites;
+
+  // All virtual memory allocations
+  LinkedListImpl<ReservedMemoryRegion, ResourceObj::ARENA>
+                       _virtual_memory_allocations;
 
-// baselined virtual memory record aggregated by callsite
-class VMCallsitePointer : public MemPointer {
- private:
-  size_t     _count;              // number of invocation from this callsite
-  size_t     _reserved_amount;    // total reserved amount
-  size_t     _committed_amount;   // total committed amount
+  // Virtual memory allocations by allocation sites, always in by_address
+  // order
+  LinkedListImpl<VirtualMemoryAllocationSite, ResourceObj::ARENA>
+                       _virtual_memory_sites;
+
+  SortingOrder         _malloc_sites_order;
+  SortingOrder         _virtual_memory_sites_order;
+
+  BaselineType         _baseline_type;
 
  public:
-  VMCallsitePointer() {
-    _count = 0;
-    _reserved_amount = 0;
-    _committed_amount = 0;
-  }
-
-  VMCallsitePointer(address pc) : MemPointer(pc) {
-    _count = 0;
-    _reserved_amount = 0;
-    _committed_amount = 0;
-  }
-
-  VMCallsitePointer& operator=(const VMCallsitePointer& p) {
-    MemPointer::operator=(p);
-    _count = p.count();
-    _reserved_amount = p.reserved_amount();
-    _committed_amount = p.committed_amount();
-    return *this;
-  }
-
-  inline void inc(size_t reserved, size_t committed) {
-    _count ++;
-    _reserved_amount += reserved;
-    _committed_amount += committed;
-  }
-
-  inline size_t count() const {
-    return _count;
-  }
-
-  inline size_t reserved_amount() const {
-    return _reserved_amount;
+  // create a memory baseline
+  MemBaseline():
+    _baseline_type(Not_baselined),
+    _class_count(0),
+    _arena(NULL),
+    _malloc_memory_snapshot(NULL),
+    _virtual_memory_snapshot(NULL),
+    _malloc_sites(NULL) {
   }
 
-  inline size_t committed_amount() const {
-    return _committed_amount;
-  }
-};
-
-// maps a memory type flag to readable name
-typedef struct _memType2Name {
-  MEMFLAGS     _flag;
-  const char*  _name;
-} MemType2Name;
-
-
-// This class aggregates malloc'd records by memory type
-class MallocMem VALUE_OBJ_CLASS_SPEC {
- private:
-  MEMFLAGS       _type;
-
-  size_t         _count;
-  size_t         _amount;
-
- public:
-  MallocMem() {
-    _type = mtNone;
-    _count = 0;
-    _amount = 0;
+  ~MemBaseline() {
+    reset();
+    if (_arena != NULL) {
+      delete _arena;
+    }
   }
 
-  MallocMem(MEMFLAGS flags) {
-    assert(HAS_VALID_MEMORY_TYPE(flags), "no type");
-    _type = FLAGS_TO_MEMORY_TYPE(flags);
-    _count = 0;
-    _amount = 0;
-  }
+  bool baseline(bool summaryOnly = true);
 
-  inline void set_type(MEMFLAGS flag) {
-    _type = flag;
-  }
+  BaselineType baseline_type() const { return _baseline_type; }
 
-  inline void clear() {
-    _count = 0;
-    _amount = 0;
-    _type = mtNone;
+  MallocMemorySnapshot* malloc_memory_snapshot() const {
+    return _malloc_memory_snapshot;
   }
 
-  MallocMem& operator=(const MallocMem& m) {
-    assert(_type == m.type(), "different type");
-    _count = m.count();
-    _amount = m.amount();
-    return *this;
+  VirtualMemorySnapshot* virtual_memory_snapshot() const {
+    return _virtual_memory_snapshot;
   }
 
-  inline void inc(size_t amt) {
-    _amount += amt;
-    _count ++;
-  }
+  MallocSiteIterator malloc_sites(SortingOrder order);
+  VirtualMemorySiteIterator virtual_memory_sites(SortingOrder order);
 
-  inline void reduce(size_t amt) {
-    assert(_amount >= amt, "Just check");
-    _amount -= amt;
-  }
-
-  inline void overwrite_counter(size_t count) {
-    _count = count;
+  // Virtual memory allocation iterator always returns in virtual memory
+  // base address order.
+  VirtualMemoryAllocationIterator virtual_memory_allocations() {
+    assert(!_virtual_memory_allocations.is_empty(), "Not detail baseline");
+    return VirtualMemoryAllocationIterator(_virtual_memory_allocations.head());
   }
 
-  inline MEMFLAGS type() const {
-    return _type;
-  }
-
-  inline bool is_type(MEMFLAGS flags) const {
-    return FLAGS_TO_MEMORY_TYPE(flags) == _type;
-  }
-
-  inline size_t count() const {
-    return _count;
+  // Total reserved memory = total malloc'd memory + total reserved virtual
+  // memory
+  size_t total_reserved_memory() const {
+    assert(baseline_type() != Not_baselined, "Not yet baselined");
+    assert(_virtual_memory_snapshot != NULL, "No virtual memory snapshot");
+    assert(_malloc_memory_snapshot != NULL,  "No malloc memory snapshot");
+    size_t amount = _malloc_memory_snapshot->total() +
+           _virtual_memory_snapshot->total_reserved();
+    return amount;
   }
 
-  inline size_t amount() const {
-    return _amount;
-  }
-};
-
-// This class records live arena's memory usage
-class ArenaMem : public MallocMem {
- public:
-  ArenaMem(MEMFLAGS typeflag): MallocMem(typeflag) {
-  }
-  ArenaMem() { }
-};
-
-// This class aggregates virtual memory by its memory type
-class VMMem VALUE_OBJ_CLASS_SPEC {
- private:
-  MEMFLAGS       _type;
-
-  size_t         _count;
-  size_t         _reserved_amount;
-  size_t         _committed_amount;
-
- public:
-  VMMem() {
-    _type = mtNone;
-    _count = 0;
-    _reserved_amount = 0;
-    _committed_amount = 0;
+  // Total committed memory = total malloc'd memory + total committed
+  // virtual memory
+  size_t total_committed_memory() const {
+    assert(baseline_type() != Not_baselined, "Not yet baselined");
+    assert(_virtual_memory_snapshot != NULL,
+      "Not a snapshot");
+    size_t amount = _malloc_memory_snapshot->total() +
+           _virtual_memory_snapshot->total_committed();
+    return amount;
   }
 
-  VMMem(MEMFLAGS flags) {
-    assert(HAS_VALID_MEMORY_TYPE(flags), "no type");
-    _type = FLAGS_TO_MEMORY_TYPE(flags);
-    _count = 0;
-    _reserved_amount = 0;
-    _committed_amount = 0;
+  size_t total_arena_memory() const {
+    assert(baseline_type() != Not_baselined, "Not yet baselined");
+    assert(_malloc_memory_snapshot != NULL, "Not yet baselined");
+    return _malloc_memory_snapshot->total_arena();
   }
 
-  inline void clear() {
-    _type = mtNone;
-    _count = 0;
-    _reserved_amount = 0;
-    _committed_amount = 0;
+  size_t malloc_tracking_overhead() const {
+    assert(baseline_type() != Not_baselined, "Not yet baselined");
+    return _malloc_memory_snapshot->malloc_overhead()->size();
   }
 
-  inline void set_type(MEMFLAGS flags) {
-    _type = FLAGS_TO_MEMORY_TYPE(flags);
+  const MallocMemory* malloc_memory(MEMFLAGS flag) const {
+    assert(_malloc_memory_snapshot != NULL, "Not a snapshot");
+    return _malloc_memory_snapshot->by_type(flag);
   }
 
-  VMMem& operator=(const VMMem& m) {
-    assert(_type == m.type(), "different type");
-
-    _count = m.count();
-    _reserved_amount = m.reserved_amount();
-    _committed_amount = m.committed_amount();
-    return *this;
+  const VirtualMemory* virtual_memory(MEMFLAGS flag) const {
+    assert(_virtual_memory_snapshot != NULL, "Not a snapshot");
+    return _virtual_memory_snapshot->by_type(flag);
   }
 
 
-  inline MEMFLAGS type() const {
-    return _type;
-  }
-
-  inline bool is_type(MEMFLAGS flags) const {
-    return FLAGS_TO_MEMORY_TYPE(flags) == _type;
-  }
-
-  inline void inc(size_t reserved_amt, size_t committed_amt) {
-    _reserved_amount += reserved_amt;
-    _committed_amount += committed_amt;
-    _count ++;
-  }
-
-  inline size_t count() const {
-    return _count;
-  }
-
-  inline size_t reserved_amount() const {
-    return _reserved_amount;
+  size_t class_count() const {
+    assert(baseline_type() != Not_baselined, "Not yet baselined");
+    return _class_count;
   }
 
-  inline size_t committed_amount() const {
-    return _committed_amount;
+  size_t thread_count() const {
+    assert(baseline_type() != Not_baselined, "Not yet baselined");
+    assert(_malloc_memory_snapshot != NULL, "Baselined?");
+    return _malloc_memory_snapshot->thread_count();
   }
-};
-
-
-
-#define NUMBER_OF_MEMORY_TYPE    (mt_number_of_types + 1)
-
-class BaselineReporter;
-class BaselineComparisonReporter;
-
-/*
- * This class baselines current memory snapshot.
- * A memory baseline summarizes memory usage by memory type,
- * aggregates memory usage by callsites when detail tracking
- * is on.
- */
-class MemBaseline VALUE_OBJ_CLASS_SPEC {
-  friend class BaselineReporter;
-  friend class BaselineComparisonReporter;
-
- private:
-  // overall summaries
-  size_t        _total_malloced;
-  size_t        _total_vm_reserved;
-  size_t        _total_vm_committed;
-  size_t        _number_of_classes;
-  size_t        _number_of_threads;
-
-  // if it has properly baselined
-  bool          _baselined;
-
-  // we categorize memory into three categories within the memory type
-  MallocMem     _malloc_data[NUMBER_OF_MEMORY_TYPE];
-  VMMem         _vm_data[NUMBER_OF_MEMORY_TYPE];
-  ArenaMem      _arena_data[NUMBER_OF_MEMORY_TYPE];
-
-  // memory records that aggregate memory usage by callsites.
-  // only available when detail tracking is on.
-  MemPointerArray*  _malloc_cs;
-  MemPointerArray*  _vm_cs;
-  // virtual memory map
-  MemPointerArray*  _vm_map;
-
- private:
-  static MemType2Name  MemType2NameMap[NUMBER_OF_MEMORY_TYPE];
-
- private:
-  // should not use copy constructor
-  MemBaseline(MemBaseline& copy) { ShouldNotReachHere(); }
-
-  // check and block at a safepoint
-  static inline void check_safepoint(JavaThread* thr);
-
- public:
-  // create a memory baseline
-  MemBaseline();
-
-  ~MemBaseline();
-
-  inline bool baselined() const {
-    return _baselined;
-  }
-
-  MemBaseline& operator=(const MemBaseline& other);
 
   // reset the baseline for reuse
-  void clear();
-
-  // baseline the snapshot
-  bool baseline(MemSnapshot& snapshot, bool summary_only = true);
-
-  bool baseline(const MemPointerArray* malloc_records,
-                const MemPointerArray* vm_records,
-                bool summary_only = true);
+  void reset() {
+    _baseline_type = Not_baselined;
+    _malloc_memory_snapshot = NULL;
+    _virtual_memory_snapshot = NULL;
+    _class_count  = 0;
 
-  // total malloc'd memory of specified memory type
-  inline size_t malloc_amount(MEMFLAGS flag) const {
-    return _malloc_data[flag2index(flag)].amount();
-  }
-  // number of malloc'd memory blocks of specified memory type
-  inline size_t malloc_count(MEMFLAGS flag) const {
-    return _malloc_data[flag2index(flag)].count();
-  }
-  // total memory used by arenas of specified memory type
-  inline size_t arena_amount(MEMFLAGS flag) const {
-    return _arena_data[flag2index(flag)].amount();
-  }
-  // number of arenas of specified memory type
-  inline size_t arena_count(MEMFLAGS flag) const {
-    return _arena_data[flag2index(flag)].count();
-  }
-  // total reserved memory of specified memory type
-  inline size_t reserved_amount(MEMFLAGS flag) const {
-    return _vm_data[flag2index(flag)].reserved_amount();
-  }
-  // total committed memory of specified memory type
-  inline size_t committed_amount(MEMFLAGS flag) const {
-    return _vm_data[flag2index(flag)].committed_amount();
-  }
-  // total memory (malloc'd + mmap'd + arena) of specified
-  // memory type
-  inline size_t total_amount(MEMFLAGS flag) const {
-    int index = flag2index(flag);
-    return _malloc_data[index].amount() +
-           _vm_data[index].reserved_amount() +
-           _arena_data[index].amount();
+    _malloc_sites = NULL;
+    _virtual_memory_sites = NULL;
+    _virtual_memory_allocations = NULL;
+
+    if (_arena != NULL) {
+      _arena->destruct_contents();
+    }
   }
 
-  /* overall summaries */
+ private:
+  // Baseline summary information
+  bool baseline_summary();
 
-  // total malloc'd memory in snapshot
-  inline size_t total_malloc_amount() const {
-    return _total_malloced;
-  }
-  // total mmap'd memory in snapshot
-  inline size_t total_reserved_amount() const {
-    return _total_vm_reserved;
-  }
-  // total committed memory in snapshot
-  inline size_t total_committed_amount() const {
-    return _total_vm_committed;
-  }
-  // number of loaded classes
-  inline size_t number_of_classes() const {
-    return _number_of_classes;
-  }
-  // number of running threads
-  inline size_t number_of_threads() const {
-    return _number_of_threads;
-  }
-  // lookup human readable name of a memory type
-  static const char* type2name(MEMFLAGS type);
+  // Baseline allocation sites (detail tracking only)
+  bool baseline_allocation_sites();
+
+  // Aggregate virtual memory allocation by allocation sites
+  bool aggregate_virtual_memory_allocation_sites();
 
- private:
-  // convert memory flag to the index to mapping table
-  int         flag2index(MEMFLAGS flag) const;
-
-  // reset baseline values
-  void reset();
-
-  // summarize the records in global snapshot
-  bool baseline_malloc_summary(const MemPointerArray* malloc_records);
-  bool baseline_vm_summary(const MemPointerArray* vm_records);
-  bool baseline_malloc_details(const MemPointerArray* malloc_records);
-  bool baseline_vm_details(const MemPointerArray* vm_records);
+  Arena* arena() { return _arena; }
 
-  // print a line of malloc'd memory aggregated by callsite
-  void print_malloc_callsite(outputStream* st, address pc, size_t size,
-    size_t count, int diff_amt, int diff_count) const;
-  // print a line of mmap'd memory aggregated by callsite
-  void print_vm_callsite(outputStream* st, address pc, size_t rsz,
-    size_t csz, int diff_rsz, int diff_csz) const;
+  // Sorting allocation sites in different orders
+  // Sort allocation sites in size order
+  void malloc_sites_to_size_order();
+  // Sort allocation sites in call site address order
+  void malloc_sites_to_allocation_site_order();
 
-  // sorting functions for raw records
-  static int malloc_sort_by_pc(const void* p1, const void* p2);
-  static int malloc_sort_by_addr(const void* p1, const void* p2);
-
- private:
-  // sorting functions for baselined records
-  static int bl_malloc_sort_by_size(const void* p1, const void* p2);
-  static int bl_vm_sort_by_size(const void* p1, const void* p2);
-  static int bl_malloc_sort_by_pc(const void* p1, const void* p2);
-  static int bl_vm_sort_by_pc(const void* p1, const void* p2);
+  // Sort allocation sites in reserved size order
+  void virtual_memory_sites_to_size_order();
+  // Sort allocation sites in call site address order
+  void virtual_memory_sites_to_reservation_site_order();
 };
 
+#endif // INCLUDE_NMT
 
 #endif // SHARE_VM_SERVICES_MEM_BASELINE_HPP
--- a/hotspot/src/share/vm/services/memPtr.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,43 +0,0 @@
-/*
- * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "runtime/atomic.inline.hpp"
-#include "services/memPtr.hpp"
-#include "services/memTracker.hpp"
-
-volatile jint SequenceGenerator::_seq_number = 1;
-volatile unsigned long SequenceGenerator::_generation = 1;
-NOT_PRODUCT(jint SequenceGenerator::_max_seq_number = 1;)
-
-jint SequenceGenerator::next() {
-  jint seq = Atomic::add(1, &_seq_number);
-  if (seq < 0) {
-    MemTracker::shutdown(MemTracker::NMT_sequence_overflow);
-  } else {
-    NOT_PRODUCT(_max_seq_number = (seq > _max_seq_number) ? seq : _max_seq_number;)
-  }
-  return seq;
-}
-
--- a/hotspot/src/share/vm/services/memPtr.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,509 +0,0 @@
-/*
- * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef SHARE_VM_SERVICES_MEM_PTR_HPP
-#define SHARE_VM_SERVICES_MEM_PTR_HPP
-
-#include "memory/allocation.hpp"
-#include "runtime/os.hpp"
-#include "runtime/safepoint.hpp"
-
-/*
- * global sequence generator that generates sequence numbers to serialize
- * memory records.
- */
-class SequenceGenerator : AllStatic {
- public:
-  static jint next();
-
-  // peek last sequence number
-  static jint peek() {
-    return _seq_number;
-  }
-
-  // reset sequence number
-  static void reset() {
-    assert(SafepointSynchronize::is_at_safepoint(), "Safepoint required");
-    _seq_number = 1;
-    _generation ++;
-  };
-
-  static unsigned long current_generation() { return _generation; }
-  NOT_PRODUCT(static jint max_seq_num() { return _max_seq_number; })
-
- private:
-  static volatile jint             _seq_number;
-  static volatile unsigned long    _generation;
-  NOT_PRODUCT(static jint          _max_seq_number; )
-};
-
-/*
- * followings are the classes that are used to hold memory activity records in different stages.
- *   MemPointer
- *     |--------MemPointerRecord
- *                     |
- *                     |----MemPointerRecordEx
- *                     |           |
- *                     |           |-------SeqMemPointerRecordEx
- *                     |
- *                     |----SeqMemPointerRecord
- *                     |
- *                     |----VMMemRegion
- *                               |
- *                               |-----VMMemRegionEx
- *
- *
- *  prefix 'Seq' - sequenced, the record contains a sequence number
- *  surfix 'Ex'  - extension, the record contains a caller's pc
- *
- *  per-thread recorder : SeqMemPointerRecord(Ex)
- *  snapshot staging    : SeqMemPointerRecord(Ex)
- *  snapshot            : MemPointerRecord(Ex) and VMMemRegion(Ex)
- *
- */
-
-/*
- * class that wraps an address to a memory block,
- * the memory pointer either points to a malloc'd
- * memory block, or a mmap'd memory block
- */
-class MemPointer VALUE_OBJ_CLASS_SPEC {
- public:
-  MemPointer(): _addr(0) { }
-  MemPointer(address addr): _addr(addr) { }
-
-  MemPointer(const MemPointer& copy_from) {
-    _addr = copy_from.addr();
-  }
-
-  inline address addr() const {
-    return _addr;
-  }
-
-  inline operator address() const {
-    return addr();
-  }
-
-  inline bool operator == (const MemPointer& other) const {
-    return addr() == other.addr();
-  }
-
-  inline MemPointer& operator = (const MemPointer& other) {
-    _addr = other.addr();
-    return *this;
-  }
-
- protected:
-  inline void set_addr(address addr) { _addr = addr; }
-
- protected:
-  // memory address
-  address    _addr;
-};
-
-/* MemPointerRecord records an activityand associated
- * attributes on a memory block.
- */
-class MemPointerRecord : public MemPointer {
- private:
-  MEMFLAGS       _flags;
-  size_t         _size;
-
-public:
-  /* extension of MemoryType enum
-   * see share/vm/memory/allocation.hpp for details.
-   *
-   * The tag values are associated to sorting orders, so be
-   * careful if changes are needed.
-   * The allocation records should be sorted ahead of tagging
-   * records, which in turn ahead of deallocation records
-   */
-  enum MemPointerTags {
-    tag_alloc            = 0x0001, // malloc or reserve record
-    tag_commit           = 0x0002, // commit record
-    tag_type             = 0x0003, // tag virtual memory to a memory type
-    tag_uncommit         = 0x0004, // uncommit record
-    tag_release          = 0x0005, // free or release record
-    tag_size             = 0x0006, // arena size
-    tag_masks            = 0x0007, // all tag bits
-    vmBit                = 0x0008
-  };
-
-  /* helper functions to interpret the tagging flags */
-
-  inline static bool is_allocation_record(MEMFLAGS flags) {
-    return (flags & tag_masks) == tag_alloc;
-  }
-
-  inline static bool is_deallocation_record(MEMFLAGS flags) {
-    return (flags & tag_masks) == tag_release;
-  }
-
-  inline static bool is_arena_record(MEMFLAGS flags) {
-    return (flags & (otArena | tag_size)) == otArena;
-  }
-
-  inline static bool is_arena_memory_record(MEMFLAGS flags) {
-    return (flags & (otArena | tag_size)) == (otArena | tag_size);
-  }
-
-  inline static bool is_virtual_memory_record(MEMFLAGS flags) {
-    return (flags & vmBit) != 0;
-  }
-
-  inline static bool is_virtual_memory_reserve_record(MEMFLAGS flags) {
-    return (flags & 0x0F) == (tag_alloc | vmBit);
-  }
-
-  inline static bool is_virtual_memory_commit_record(MEMFLAGS flags) {
-    return (flags & 0x0F) == (tag_commit | vmBit);
-  }
-
-  inline static bool is_virtual_memory_uncommit_record(MEMFLAGS flags) {
-    return (flags & 0x0F) == (tag_uncommit | vmBit);
-  }
-
-  inline static bool is_virtual_memory_release_record(MEMFLAGS flags) {
-    return (flags & 0x0F) == (tag_release | vmBit);
-  }
-
-  inline static bool is_virtual_memory_type_record(MEMFLAGS flags) {
-    return (flags & 0x0F) == (tag_type | vmBit);
-  }
-
-  /* tagging flags */
-  inline static MEMFLAGS malloc_tag()                 { return tag_alloc;   }
-  inline static MEMFLAGS free_tag()                   { return tag_release; }
-  inline static MEMFLAGS arena_size_tag()             { return tag_size | otArena; }
-  inline static MEMFLAGS virtual_memory_tag()         { return vmBit; }
-  inline static MEMFLAGS virtual_memory_reserve_tag() { return (tag_alloc | vmBit); }
-  inline static MEMFLAGS virtual_memory_commit_tag()  { return (tag_commit | vmBit); }
-  inline static MEMFLAGS virtual_memory_uncommit_tag(){ return (tag_uncommit | vmBit); }
-  inline static MEMFLAGS virtual_memory_release_tag() { return (tag_release | vmBit); }
-  inline static MEMFLAGS virtual_memory_type_tag()    { return (tag_type | vmBit); }
-
- public:
-  MemPointerRecord(): _size(0), _flags(mtNone) { }
-
-  MemPointerRecord(address addr, MEMFLAGS memflags, size_t size = 0):
-      MemPointer(addr), _flags(memflags), _size(size) { }
-
-  MemPointerRecord(const MemPointerRecord& copy_from):
-    MemPointer(copy_from), _flags(copy_from.flags()),
-    _size(copy_from.size()) {
-  }
-
-  /* MemPointerRecord is not sequenced, it always return
-   * 0 to indicate non-sequenced
-   */
-  virtual jint seq() const               { return 0; }
-
-  inline size_t   size()  const          { return _size; }
-  inline void set_size(size_t size)      { _size = size; }
-
-  inline MEMFLAGS flags() const          { return _flags; }
-  inline void set_flags(MEMFLAGS flags)  { _flags = flags; }
-
-  MemPointerRecord& operator= (const MemPointerRecord& ptr) {
-    MemPointer::operator=(ptr);
-    _flags = ptr.flags();
-#ifdef ASSERT
-    if (IS_ARENA_OBJ(_flags)) {
-      assert(!is_vm_pointer(), "wrong flags");
-      assert((_flags & ot_masks) == otArena, "wrong flags");
-    }
-#endif
-    _size = ptr.size();
-    return *this;
-  }
-
-  // if the pointer represents a malloc-ed memory address
-  inline bool is_malloced_pointer() const {
-    return !is_vm_pointer();
-  }
-
-  // if the pointer represents a virtual memory address
-  inline bool is_vm_pointer() const {
-    return is_virtual_memory_record(_flags);
-  }
-
-  // if this record records a 'malloc' or virtual memory
-  // 'reserve' call
-  inline bool is_allocation_record() const {
-    return is_allocation_record(_flags);
-  }
-
-  // if this record records a size information of an arena
-  inline bool is_arena_memory_record() const {
-    return is_arena_memory_record(_flags);
-  }
-
-  // if this pointer represents an address to an arena object
-  inline bool is_arena_record() const {
-    return is_arena_record(_flags);
-  }
-
-  // if this record represents a size information of specific arena
-  inline bool is_memory_record_of_arena(const MemPointerRecord* arena_rc) {
-    assert(is_arena_memory_record(), "not size record");
-    assert(arena_rc->is_arena_record(), "not arena record");
-    return (arena_rc->addr() + sizeof(void*)) == addr();
-  }
-
-  // if this record records a 'free' or virtual memory 'free' call
-  inline bool is_deallocation_record() const {
-    return is_deallocation_record(_flags);
-  }
-
-  // if this record records a virtual memory 'commit' call
-  inline bool is_commit_record() const {
-    return is_virtual_memory_commit_record(_flags);
-  }
-
-  // if this record records a virtual memory 'uncommit' call
-  inline bool is_uncommit_record() const {
-    return is_virtual_memory_uncommit_record(_flags);
-  }
-
-  // if this record is a tagging record of a virtual memory block
-  inline bool is_type_tagging_record() const {
-    return is_virtual_memory_type_record(_flags);
-  }
-
-  // if the two memory pointer records actually represent the same
-  // memory block
-  inline bool is_same_region(const MemPointerRecord* other) const {
-    return (addr() == other->addr() && size() == other->size());
-  }
-
-  // if this memory region fully contains another one
-  inline bool contains_region(const MemPointerRecord* other) const {
-    return contains_region(other->addr(), other->size());
-  }
-
-  // if this memory region fully contains specified memory range
-  inline bool contains_region(address add, size_t sz) const {
-    return (addr() <= add && addr() + size() >= add + sz);
-  }
-
-  inline bool contains_address(address add) const {
-    return (addr() <= add && addr() + size() > add);
-  }
-
-  // if this memory region overlaps another region
-  inline bool overlaps_region(const MemPointerRecord* other) const {
-    assert(other != NULL, "Just check");
-    assert(size() > 0 && other->size() > 0, "empty range");
-    return contains_address(other->addr()) ||
-           contains_address(other->addr() + other->size() - 1) || // exclude end address
-           other->contains_address(addr()) ||
-           other->contains_address(addr() + size() - 1); // exclude end address
-  }
-
-};
-
-// MemPointerRecordEx also records callsite pc, from where
-// the memory block is allocated
-class MemPointerRecordEx : public MemPointerRecord {
- private:
-  address      _pc;  // callsite pc
-
- public:
-  MemPointerRecordEx(): _pc(0) { }
-
-  MemPointerRecordEx(address addr, MEMFLAGS memflags, size_t size = 0, address pc = 0):
-    MemPointerRecord(addr, memflags, size), _pc(pc) {}
-
-  MemPointerRecordEx(const MemPointerRecordEx& copy_from):
-    MemPointerRecord(copy_from), _pc(copy_from.pc()) {}
-
-  inline address pc() const { return _pc; }
-
-  void init(const MemPointerRecordEx* mpe) {
-    MemPointerRecord::operator=(*mpe);
-    _pc = mpe->pc();
-  }
-
-  void init(const MemPointerRecord* mp) {
-    MemPointerRecord::operator=(*mp);
-    _pc = 0;
-  }
-};
-
-// a virtual memory region. The region can represent a reserved
-// virtual memory region or a committed memory region
-class VMMemRegion : public MemPointerRecord {
-public:
-  VMMemRegion() { }
-
-  void init(const MemPointerRecord* mp) {
-    assert(mp->is_vm_pointer(), "Sanity check");
-    _addr = mp->addr();
-      set_size(mp->size());
-    set_flags(mp->flags());
-  }
-
-  VMMemRegion& operator=(const VMMemRegion& other) {
-    MemPointerRecord::operator=(other);
-    return *this;
-  }
-
-  inline bool is_reserved_region() const {
-    return is_allocation_record();
-  }
-
-  inline bool is_committed_region() const {
-    return is_commit_record();
-  }
-
-  /* base address of this virtual memory range */
-  inline address base() const {
-    return addr();
-  }
-
-  /* tag this virtual memory range to the specified memory type */
-  inline void tag(MEMFLAGS f) {
-    set_flags(flags() | (f & mt_masks));
-  }
-
-  // expand this region to also cover specified range.
-  // The range has to be on either end of the memory region.
-  void expand_region(address addr, size_t sz) {
-    if (addr < base()) {
-      assert(addr + sz == base(), "Sanity check");
-      _addr = addr;
-      set_size(size() + sz);
-    } else {
-      assert(base() + size() == addr, "Sanity check");
-      set_size(size() + sz);
-    }
-  }
-
-  // exclude the specified address range from this region.
-  // The excluded memory range has to be on either end of this memory
-  // region.
-  inline void exclude_region(address add, size_t sz) {
-    assert(is_reserved_region() || is_committed_region(), "Sanity check");
-    assert(addr() != NULL && size() != 0, "Sanity check");
-    assert(add >= addr() && add < addr() + size(), "Sanity check");
-    assert(add == addr() || (add + sz) == (addr() + size()),
-      "exclude in the middle");
-    if (add == addr()) {
-      set_addr(add + sz);
-      set_size(size() - sz);
-    } else {
-      set_size(size() - sz);
-    }
-  }
-};
-
-class VMMemRegionEx : public VMMemRegion {
- private:
-  jint   _seq;  // sequence number
-
- public:
-  VMMemRegionEx(): _pc(0) { }
-
-  void init(const MemPointerRecordEx* mpe) {
-    VMMemRegion::init(mpe);
-    _pc = mpe->pc();
-  }
-
-  void init(const MemPointerRecord* mpe) {
-    VMMemRegion::init(mpe);
-    _pc = 0;
-  }
-
-  VMMemRegionEx& operator=(const VMMemRegionEx& other) {
-    VMMemRegion::operator=(other);
-    _pc = other.pc();
-    return *this;
-  }
-
-  inline address pc() const { return _pc; }
- private:
-  address   _pc;
-};
-
-/*
- * Sequenced memory record
- */
-class SeqMemPointerRecord : public MemPointerRecord {
- private:
-   jint _seq;  // sequence number
-
- public:
-  SeqMemPointerRecord(): _seq(0){ }
-
-  SeqMemPointerRecord(address addr, MEMFLAGS flags, size_t size, jint seq)
-    : MemPointerRecord(addr, flags, size), _seq(seq)  {
-  }
-
-  SeqMemPointerRecord(const SeqMemPointerRecord& copy_from)
-    : MemPointerRecord(copy_from) {
-    _seq = copy_from.seq();
-  }
-
-  SeqMemPointerRecord& operator= (const SeqMemPointerRecord& ptr) {
-    MemPointerRecord::operator=(ptr);
-    _seq = ptr.seq();
-    return *this;
-  }
-
-  inline jint seq() const {
-    return _seq;
-  }
-};
-
-
-
-class SeqMemPointerRecordEx : public MemPointerRecordEx {
- private:
-  jint    _seq;  // sequence number
-
- public:
-  SeqMemPointerRecordEx(): _seq(0) { }
-
-  SeqMemPointerRecordEx(address addr, MEMFLAGS flags, size_t size,
-    jint seq, address pc):
-    MemPointerRecordEx(addr, flags, size, pc), _seq(seq)  {
-  }
-
-  SeqMemPointerRecordEx(const SeqMemPointerRecordEx& copy_from)
-    : MemPointerRecordEx(copy_from) {
-    _seq = copy_from.seq();
-  }
-
-  SeqMemPointerRecordEx& operator= (const SeqMemPointerRecordEx& ptr) {
-    MemPointerRecordEx::operator=(ptr);
-    _seq = ptr.seq();
-    return *this;
-  }
-
-  inline jint seq() const {
-    return _seq;
-  }
-};
-
-#endif // SHARE_VM_SERVICES_MEM_PTR_HPP
--- a/hotspot/src/share/vm/services/memPtrArray.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,306 +0,0 @@
-/*
- * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-#ifndef SHARE_VM_UTILITIES_MEM_PTR_ARRAY_HPP
-#define SHARE_VM_UTILITIES_MEM_PTR_ARRAY_HPP
-
-#include "memory/allocation.hpp"
-#include "services/memPtr.hpp"
-
-class MemPtr;
-class MemRecorder;
-class ArenaInfo;
-class MemSnapshot;
-
-extern "C" {
-  typedef int (*FN_SORT)(const void *, const void *);
-}
-
-
-// Memory pointer array interface. This array is used by NMT to hold
-// various memory block information.
-// The memory pointer arrays are usually walked with their iterators.
-
-class MemPointerArray : public CHeapObj<mtNMT> {
- public:
-  virtual ~MemPointerArray() { }
-
-  // return true if it can not allocate storage for the data
-  virtual bool out_of_memory() const = 0;
-  virtual bool is_empty() const = 0;
-  virtual bool is_full() = 0;
-  virtual int  length() const = 0;
-  virtual void clear() = 0;
-  virtual bool append(MemPointer* ptr) = 0;
-  virtual bool insert_at(MemPointer* ptr, int pos) = 0;
-  virtual bool remove_at(int pos) = 0;
-  virtual MemPointer* at(int index) const = 0;
-  virtual void sort(FN_SORT fn) = 0;
-  virtual size_t instance_size() const = 0;
-  virtual bool shrink() = 0;
-
-  NOT_PRODUCT(virtual int capacity() const = 0;)
-};
-
-// Iterator interface
-class MemPointerArrayIterator VALUE_OBJ_CLASS_SPEC {
- public:
-  // return the pointer at current position
-  virtual MemPointer* current() const = 0;
-  // return the next pointer and advance current position
-  virtual MemPointer* next() = 0;
-  // return next pointer without advancing current position
-  virtual MemPointer* peek_next() const = 0;
-  // return previous pointer without changing current position
-  virtual MemPointer* peek_prev() const = 0;
-  // remove the pointer at current position
-  virtual void        remove() = 0;
-  // insert the pointer at current position
-  virtual bool        insert(MemPointer* ptr) = 0;
-  // insert specified element after current position and
-  // move current position to newly inserted position
-  virtual bool        insert_after(MemPointer* ptr) = 0;
-};
-
-// implementation class
-class MemPointerArrayIteratorImpl : public MemPointerArrayIterator {
- protected:
-  MemPointerArray*  _array;
-  int               _pos;
-
- public:
-  MemPointerArrayIteratorImpl(MemPointerArray* arr) {
-    assert(arr != NULL, "Parameter check");
-    _array = arr;
-    _pos = 0;
-  }
-
-  virtual MemPointer* current() const {
-    if (_pos < _array->length()) {
-      return _array->at(_pos);
-    }
-    return NULL;
-  }
-
-  virtual MemPointer* next() {
-    if (_pos + 1 < _array->length()) {
-      return _array->at(++_pos);
-    }
-    _pos = _array->length();
-    return NULL;
-  }
-
-  virtual MemPointer* peek_next() const {
-    if (_pos + 1 < _array->length()) {
-      return _array->at(_pos + 1);
-    }
-    return NULL;
-  }
-
-  virtual MemPointer* peek_prev() const {
-    if (_pos > 0) {
-      return _array->at(_pos - 1);
-    }
-    return NULL;
-  }
-
-  virtual void remove() {
-    if (_pos < _array->length()) {
-      _array->remove_at(_pos);
-    }
-  }
-
-  virtual bool insert(MemPointer* ptr) {
-    return _array->insert_at(ptr, _pos);
-  }
-
-  virtual bool insert_after(MemPointer* ptr) {
-    if (_array->insert_at(ptr, _pos + 1)) {
-      _pos ++;
-      return true;
-    }
-    return false;
-  }
-};
-
-
-
-// Memory pointer array implementation.
-// This implementation implements expandable array
-#define DEFAULT_PTR_ARRAY_SIZE 1024
-
-template <class E> class MemPointerArrayImpl : public MemPointerArray {
- private:
-  int                   _max_size;
-  int                   _size;
-  bool                  _init_elements;
-  E*                    _data;
-
- public:
-  MemPointerArrayImpl(int initial_size = DEFAULT_PTR_ARRAY_SIZE, bool init_elements = true):
-   _max_size(initial_size), _size(0), _init_elements(init_elements) {
-    _data = (E*)raw_allocate(sizeof(E), initial_size);
-    if (_init_elements) {
-      for (int index = 0; index < _max_size; index ++) {
-        ::new ((void*)&_data[index]) E();
-      }
-    }
-  }
-
-  virtual ~MemPointerArrayImpl() {
-    if (_data != NULL) {
-      raw_free(_data);
-    }
-  }
-
- public:
-  bool out_of_memory() const {
-    return (_data == NULL);
-  }
-
-  size_t instance_size() const {
-    return sizeof(MemPointerArrayImpl<E>) + _max_size * sizeof(E);
-  }
-
-  bool is_empty() const {
-    assert(_data != NULL, "Just check");
-    return _size == 0;
-  }
-
-  bool is_full() {
-    assert(_data != NULL, "Just check");
-    if (_size < _max_size) {
-      return false;
-    } else {
-      return !expand_array();
-    }
-  }
-
-  int length() const {
-    assert(_data != NULL, "Just check");
-    return _size;
-  }
-
-  NOT_PRODUCT(int capacity() const { return _max_size; })
-
-  void clear() {
-    assert(_data != NULL, "Just check");
-    _size = 0;
-  }
-
-  bool append(MemPointer* ptr) {
-    assert(_data != NULL, "Just check");
-    if (is_full()) {
-      return false;
-    }
-    _data[_size ++] = *(E*)ptr;
-    return true;
-  }
-
-  bool insert_at(MemPointer* ptr, int pos) {
-    assert(_data != NULL, "Just check");
-    if (is_full()) {
-      return false;
-    }
-    for (int index = _size; index > pos; index --) {
-      _data[index] = _data[index - 1];
-    }
-    _data[pos] = *(E*)ptr;
-    _size ++;
-    return true;
-  }
-
-  bool remove_at(int pos) {
-    assert(_data != NULL, "Just check");
-    if (_size <= pos && pos >= 0) {
-      return false;
-    }
-    -- _size;
-
-    for (int index = pos; index < _size; index ++) {
-      _data[index] = _data[index + 1];
-    }
-    return true;
-  }
-
-  MemPointer* at(int index) const {
-    assert(_data != NULL, "Just check");
-    assert(index >= 0 && index < _size, "illegal index");
-    return &_data[index];
-  }
-
-  bool shrink() {
-    float used = ((float)_size) / ((float)_max_size);
-    if (used < 0.40) {
-      E* old_ptr = _data;
-      int new_size = ((_max_size) / (2 * DEFAULT_PTR_ARRAY_SIZE) + 1) * DEFAULT_PTR_ARRAY_SIZE;
-      _data = (E*)raw_reallocate(_data, sizeof(E), new_size);
-      if (_data == NULL) {
-        _data = old_ptr;
-        return false;
-      } else {
-        _max_size = new_size;
-        return true;
-      }
-    }
-    return false;
-  }
-
-  void sort(FN_SORT fn) {
-    assert(_data != NULL, "Just check");
-    qsort((void*)_data, _size, sizeof(E), fn);
-  }
-
- private:
-  bool  expand_array() {
-    assert(_data != NULL, "Not yet allocated");
-    E* old_ptr = _data;
-    if ((_data = (E*)raw_reallocate((void*)_data, sizeof(E),
-      _max_size + DEFAULT_PTR_ARRAY_SIZE)) == NULL) {
-      _data = old_ptr;
-      return false;
-    } else {
-      _max_size += DEFAULT_PTR_ARRAY_SIZE;
-      if (_init_elements) {
-        for (int index = _size; index < _max_size; index ++) {
-          ::new ((void*)&_data[index]) E();
-        }
-      }
-      return true;
-    }
-  }
-
-  void* raw_allocate(size_t elementSize, int items) {
-    return os::malloc(elementSize * items, mtNMT);
-  }
-
-  void* raw_reallocate(void* ptr, size_t elementSize, int items) {
-    return os::realloc(ptr, elementSize * items, mtNMT);
-  }
-
-  void  raw_free(void* ptr) {
-    os::free(ptr, mtNMT);
-  }
-};
-
-#endif // SHARE_VM_UTILITIES_MEM_PTR_ARRAY_HPP
--- a/hotspot/src/share/vm/services/memRecorder.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,171 +0,0 @@
-/*
- * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-
-#include "runtime/atomic.inline.hpp"
-#include "services/memBaseline.hpp"
-#include "services/memRecorder.hpp"
-#include "services/memPtr.hpp"
-#include "services/memTracker.hpp"
-
-MemPointer* SequencedRecordIterator::next_record() {
-  MemPointerRecord* itr_cur = (MemPointerRecord*)_itr.current();
-  if (itr_cur == NULL)  {
-    return itr_cur;
-  }
-
-  MemPointerRecord* itr_next = (MemPointerRecord*)_itr.next();
-
-  // don't collapse virtual memory records
-  while (itr_next != NULL && !itr_cur->is_vm_pointer() &&
-    !itr_next->is_vm_pointer() &&
-    same_kind(itr_cur, itr_next)) {
-    itr_cur = itr_next;
-    itr_next = (MemPointerRecord*)_itr.next();
-  }
-
-  return itr_cur;
-}
-
-
-volatile jint MemRecorder::_instance_count = 0;
-
-MemRecorder::MemRecorder() {
-  assert(MemTracker::is_on(), "Native memory tracking is off");
-  Atomic::inc(&_instance_count);
-  set_generation();
-
-  if (MemTracker::track_callsite()) {
-    _pointer_records = new (std::nothrow)FixedSizeMemPointerArray<SeqMemPointerRecordEx,
-        DEFAULT_RECORDER_PTR_ARRAY_SIZE>();
-  } else {
-    _pointer_records = new (std::nothrow)FixedSizeMemPointerArray<SeqMemPointerRecord,
-        DEFAULT_RECORDER_PTR_ARRAY_SIZE>();
-  }
-  _next = NULL;
-
-
-  if (_pointer_records != NULL) {
-    // recode itself
-    address pc = CURRENT_PC;
-    record((address)this, (MemPointerRecord::malloc_tag()|mtNMT|otNMTRecorder),
-        sizeof(MemRecorder), SequenceGenerator::next(), pc);
-    record((address)_pointer_records, (MemPointerRecord::malloc_tag()|mtNMT|otNMTRecorder),
-        _pointer_records->instance_size(), SequenceGenerator::next(), pc);
-  }
-}
-
-MemRecorder::~MemRecorder() {
-  if (_pointer_records != NULL) {
-    if (MemTracker::is_on()) {
-      MemTracker::record_free((address)_pointer_records, mtNMT);
-      MemTracker::record_free((address)this, mtNMT);
-    }
-    delete _pointer_records;
-  }
-  // delete all linked recorders
-  while (_next != NULL) {
-    MemRecorder* tmp = _next;
-    _next = _next->next();
-    tmp->set_next(NULL);
-    delete tmp;
-  }
-  Atomic::dec(&_instance_count);
-}
-
-// Sorting order:
-//   1. memory block address
-//   2. mem pointer record tags
-//   3. sequence number
-int MemRecorder::sort_record_fn(const void* e1, const void* e2) {
-  const MemPointerRecord* p1 = (const MemPointerRecord*)e1;
-  const MemPointerRecord* p2 = (const MemPointerRecord*)e2;
-  int delta = UNSIGNED_COMPARE(p1->addr(), p2->addr());
-  if (delta == 0) {
-    int df = UNSIGNED_COMPARE((p1->flags() & MemPointerRecord::tag_masks),
-                              (p2->flags() & MemPointerRecord::tag_masks));
-    if (df == 0) {
-      assert(p1->seq() != p2->seq(), "dup seq");
-      return p1->seq() - p2->seq();
-    } else {
-      return df;
-    }
-  } else {
-    return delta;
-  }
-}
-
-bool MemRecorder::record(address p, MEMFLAGS flags, size_t size, jint seq, address pc) {
-  assert(seq > 0, "No sequence number");
-#ifdef ASSERT
-  if (MemPointerRecord::is_virtual_memory_record(flags)) {
-    assert((flags & MemPointerRecord::tag_masks) != 0, "bad virtual memory record");
-  } else {
-    assert((flags & MemPointerRecord::tag_masks) == MemPointerRecord::malloc_tag() ||
-           (flags & MemPointerRecord::tag_masks) == MemPointerRecord::free_tag() ||
-           IS_ARENA_OBJ(flags),
-           "bad malloc record");
-  }
-  // a recorder should only hold records within the same generation
-  unsigned long cur_generation = SequenceGenerator::current_generation();
-  assert(cur_generation == _generation,
-         "this thread did not enter sync point");
-#endif
-
-  if (MemTracker::track_callsite()) {
-    SeqMemPointerRecordEx ap(p, flags, size, seq, pc);
-    debug_only(check_dup_seq(ap.seq());)
-    return _pointer_records->append(&ap);
-  } else {
-    SeqMemPointerRecord ap(p, flags, size, seq);
-    debug_only(check_dup_seq(ap.seq());)
-    return _pointer_records->append(&ap);
-  }
-}
-
-  // iterator for alloc pointers
-SequencedRecordIterator MemRecorder::pointer_itr() {
-  assert(_pointer_records != NULL, "just check");
-  _pointer_records->sort((FN_SORT)sort_record_fn);
-  return SequencedRecordIterator(_pointer_records);
-}
-
-
-void MemRecorder::set_generation() {
-  _generation = SequenceGenerator::current_generation();
-}
-
-#ifdef ASSERT
-
-void MemRecorder::check_dup_seq(jint seq) const {
-  MemPointerArrayIteratorImpl itr(_pointer_records);
-  MemPointerRecord* rc = (MemPointerRecord*)itr.current();
-  while (rc != NULL) {
-    assert(rc->seq() != seq, "dup seq");
-    rc = (MemPointerRecord*)itr.next();
-  }
-}
-
-#endif
--- a/hotspot/src/share/vm/services/memRecorder.hpp	Mon Aug 11 14:03:06 2014 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,271 +0,0 @@
-/*
- * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef SHARE_VM_SERVICES_MEM_RECORDER_HPP
-#define SHARE_VM_SERVICES_MEM_RECORDER_HPP
-
-#include "memory/allocation.hpp"
-#include "runtime/os.hpp"
-#include "services/memPtrArray.hpp"
-
-class MemSnapshot;
-class MemTracker;
-class MemTrackWorker;
-
-// Fixed size memory pointer array implementation
-template <class E, int SIZE> class FixedSizeMemPointerArray :
-  public MemPointerArray {
-  // This implementation is for memory recorder only
-  friend class MemRecorder;
-
- private:
-  E      _data[SIZE];
-  int    _size;
-
- protected:
-  FixedSizeMemPointerArray(bool init_elements = false):
-   _size(0){
-    if (init_elements) {
-      for (int index = 0; index < SIZE; index ++) {
-        ::new ((void*)&_data[index]) E();
-      }
-    }
-  }
-
-  void* operator new(size_t size, const std::nothrow_t& nothrow_constant) throw() {
-    // the instance is part of memRecorder, needs to be tagged with 'otNMTRecorder'
-    // to avoid recursion
-    return os::malloc(size, (mtNMT | otNMTRecorder));
-  }
-
-  void* operator new(size_t size) throw() {
-    assert(false, "use nothrow version");
-    return NULL;
-  }
-
-  void operator delete(void* p) {
-    os::free(p, (mtNMT | otNMTRecorder));
-  }
-
-  // instance size
-  inline size_t instance_size() const {
-    return sizeof(FixedSizeMemPointerArray<E, SIZE>);
-  }
-
-  NOT_PRODUCT(int capacity() const { return SIZE; })
-
- public:
-  // implementation of public interface
-  bool out_of_memory() const { return false; }
-  bool is_empty()      const { return _size == 0; }
-  bool is_full()             { return length() >= SIZE; }
-  int  length()        const { return _size; }
-
-  void clear() {
-    _size = 0;
-  }
-
-  bool append(MemPointer* ptr) {
-    if (is_full()) return false;
-    _data[_size ++] = *(E*)ptr;
-    return true;
-  }
-
-  virtual bool insert_at(MemPointer* p, int pos) {
-    assert(false, "append only");
-    return false;
-  }
-
-  virtual bool remove_at(int pos) {
-    assert(false, "not supported");
-    return false;
-  }
-
-  MemPointer* at(int index) const {
-    assert(index >= 0 && index < length(),
-      "parameter check");
-    return ((E*)&_data[index]);
-  }
-
-  void sort(FN_SORT fn) {
-    qsort((void*)_data, _size, sizeof(E), fn);
-  }
-
-  bool shrink() {
-    return false;
-  }
-};
-
-
-// This iterator requires pre-sorted MemPointerArray, which is sorted by:
-//  1. address
-//  2. allocation type
-//  3. sequence number
-// During the array walking, iterator collapses pointers with the same
-// address and allocation type, and only returns the one with highest
-// sequence number.
-//
-// This is read-only iterator, update methods are asserted.
-class SequencedRecordIterator : public MemPointerArrayIterator {
- private:
-   MemPointerArrayIteratorImpl _itr;
-   MemPointer*                 _cur;
-
- public:
-  SequencedRecordIterator(const MemPointerArray* arr):
-    _itr(const_cast<MemPointerArray*>(arr)) {
-    _cur = next_record();
-  }
-
-  SequencedRecordIterator(const SequencedRecordIterator& itr):
-    _itr(itr._itr) {
-    _cur = next_record();
-  }
-
-  // return the pointer at current position
-  virtual MemPointer* current() const {
-    return _cur;
-  };
-
-  // return the next pointer and advance current position
-  virtual MemPointer* next() {
-    _cur = next_record();
-    return _cur;
-  }
-
-  // return the next pointer without advancing current position
-  virtual MemPointer* peek_next() const {
-    assert(false, "not implemented");
-    return NULL;
-
-  }
-  // return the previous pointer without changing current position
-  virtual MemPointer* peek_prev() const {
-    assert(false, "not implemented");
-    return NULL;
-  }
-
-  // remove the pointer at current position
-  virtual void remove() {
-    assert(false, "read-only iterator");
-  };
-  // insert the pointer at current position
-  virtual bool insert(MemPointer* ptr) {
-    assert(false, "read-only iterator");
-    return false;
-  }
-
-  virtual bool insert_after(MemPointer* ptr) {
-    assert(false, "read-only iterator");
-    return false;
-  }
- private:
-  // collapse the 'same kind' of records, and return this 'kind' of
-  // record with highest sequence number
-  MemPointer* next_record();
-
-  // Test if the two records are the same kind: the same memory block and allocation
-  // type.
-  inline bool same_kind(const MemPointerRecord* p1, const MemPointerRecord* p2) const {
-    assert(!p1->is_vm_pointer() && !p2->is_vm_pointer(), "malloc pointer only");
-    return (p1->addr() == p2->addr() &&
-      (p1->flags() &MemPointerRecord::tag_masks) ==
-      (p2->flags() & MemPointerRecord::tag_masks));
-  }
-};
-
-
-
-#define DEFAULT_RECORDER_PTR_ARRAY_SIZE 512
-
-class MemRecorder : public CHeapObj<mtNMT|otNMTRecorder> {
-  friend class MemSnapshot;
-  friend class MemTracker;
-  friend class MemTrackWorker;
-  friend class GenerationData;
-
- protected:
-  // the array that holds memory records
-  MemPointerArray*         _pointer_records;
-
- private:
-  // used for linked list
-  MemRecorder*             _next;
-  // active recorder can only record a certain generation data
-  unsigned long            _generation;
-
- protected:
-  _NOINLINE_ MemRecorder();
-  ~MemRecorder();
-
-  // record a memory operation
-  bool record(address addr, MEMFLAGS flags, size_t size, jint seq, address caller_pc = 0);
-
-  // linked list support
-  inline void set_next(MemRecorder* rec) {
-    _next = rec;
-  }
-
-  inline MemRecorder* next() const {
-    return _next;
-  }
-
-  // if the recorder is full
-  inline bool is_full() const {
-    assert(_pointer_records != NULL, "just check");
-    return _pointer_records->is_full();
-  }
-
-  // if running out of memory when initializing recorder's internal
-  // data
-  inline bool out_of_memory() const {
-    return (_pointer_records == NULL ||
-      _pointer_records->out_of_memory());
-  }
-
-  inline void clear() {
-    assert(_pointer_records != NULL, "Just check");
-    _pointer_records->clear();
-  }
-
-  SequencedRecordIterator pointer_itr();
-
-  // return the generation of this recorder which it belongs to
-  unsigned long get_generation() const { return _generation; }
- protected:
-  // number of MemRecorder instance
-  static volatile jint _instance_count;
-
- private:
-  // sorting function, sort records into following order
-  // 1. memory address
-  // 2. allocation type
-  // 3. sequence number
-  static int sort_record_fn(const void* e1, const void* e2);
-
-  debug_only(void check_dup_seq(jint seq) const;)
-  void set_generation();
-};
-
-#endif // SHARE_VM_SERVICES_MEM_RECORDER_HPP
--- a/hotspot/src/share/vm/services/memReporter.cpp	Mon Aug 11 14:03:06 2014 +0200
+++ b/hotspot/src/share/vm/services/memReporter.cpp	Thu Aug 14 18:42:08 2014 +0000
@@ -22,618 +22,595 @@
  *
  */
 #include "precompiled.hpp"
-#include "classfile/systemDictionary.hpp"
-#include "runtime/os.hpp"
+
+#include "memory/allocation.hpp"
+#include "services/mallocTracker.hpp"
 #include "services/memReporter.hpp"
-#include "services/memPtrArray.hpp"
-#include "services/memTracker.hpp"
+#include "services/virtualMemoryTracker.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+size_t MemReporterBase::reserved_total(const MallocMemory* malloc, const VirtualMemory* vm) const {
+  return malloc->malloc_size() + malloc->arena_size() + vm->reserved();
+}
+
+size_t MemReporterBase::committed_total(const MallocMemory* malloc, const VirtualMemory* vm) const {
+  return malloc->malloc_size() + malloc->arena_size() + vm->committed();
+}
 
-PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
+void MemReporterBase::print_total(size_t reserved, size_t committed) const {
+  const char* scale = current_scale();
+  output()->print("reserved=" SIZE_FORMAT "%s, committed=" SIZE_FORMAT "%s",
+    amount_in_current_scale(reserved), scale, amount_in_current_scale(committed), scale);
+}
+
+void MemReporterBase::print_malloc(size_t amount, size_t count) const {
+  const char* scale = current_scale();
+  outputStream* out = output();
+  out->print("(malloc=" SIZE_FORMAT "%s",
+    amount_in_current_scale(amount), scale);
+
+  if (count > 0) {
+    out->print(" #" SIZE_FORMAT "", count);
+  }
 
-const char* BaselineOutputer::memory_unit(size_t scale) {
-  switch(scale) {
-    case K: return "KB";
-    case M: return "MB";
-    case G: return "GB";
-  }
-  ShouldNotReachHere();
-  return NULL;
+  out->print(")");
+}
+
+void MemReporterBase::print_virtual_memory(size_t reserved, size_t committed) const {
+  const char* scale = current_scale();
+  output()->print("(mmap: reserved=" SIZE_FORMAT "%s, committed=" SIZE_FORMAT "%s)",
+    amount_in_current_scale(reserved), scale, amount_in_current_scale(committed), scale);
+}
+
+void MemReporterBase::print_malloc_line(size_t amount, size_t count) const {
+  output()->print("%28s", " ");
+  print_malloc(amount, count);
+  output()->print_cr(" ");
+}
+
+void MemReporterBase::print_virtual_memory_line(size_t reserved, size_t committed) const {
+  output()->print("%28s", " ");
+  print_virtual_memory(reserved, committed);
+  output()->print_cr(" ");
+}
+
+void MemReporterBase::print_arena_line(size_t amount, size_t count) const {
+  const char* scale = current_scale();
+  output()->print_cr("%27s (arena=" SIZE_FORMAT "%s #" SIZE_FORMAT ")", " ",
+    amount_in_current_scale(amount), scale, count);
+}
+
+void MemReporterBase::print_virtual_memory_region(const char* type, address base, size_t size) const {
+  const char* scale = current_scale();
+  output()->print("[" PTR_FORMAT " - " PTR_FORMAT "] %s " SIZE_FORMAT "%s",
+    p2i(base), p2i(base + size), type, amount_in_current_scale(size), scale);
 }
 
 
-void BaselineReporter::report_baseline(const MemBaseline& baseline, bool summary_only) {
-  assert(MemTracker::is_on(), "Native memory tracking is off");
-  _outputer.start(scale());
-  _outputer.total_usage(
-    amount_in_current_scale(baseline.total_malloc_amount() + baseline.total_reserved_amount()),
-    amount_in_current_scale(baseline.total_malloc_amount() + baseline.total_committed_amount()));
-
-  _outputer.num_of_classes(baseline.number_of_classes());
-  _outputer.num_of_threads(baseline.number_of_threads());
-
-  report_summaries(baseline);
-  if (!summary_only && MemTracker::track_callsite()) {
-    report_virtual_memory_map(baseline);
-    report_callsites(baseline);
-  }
-  _outputer.done();
-}
-
-void BaselineReporter::report_summaries(const MemBaseline& baseline) {
-  _outputer.start_category_summary();
-  MEMFLAGS type;
+void MemSummaryReporter::report() {
+  const char* scale = current_scale();
+  outputStream* out = output();
+  size_t total_reserved_amount = _malloc_snapshot->total() +
+    _vm_snapshot->total_reserved();
+  size_t total_committed_amount = _malloc_snapshot->total() +
+    _vm_snapshot->total_committed();
 
-  for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
-    type = MemBaseline::MemType2NameMap[index]._flag;
-    _outputer.category_summary(type,
-      amount_in_current_scale(baseline.reserved_amount(type)),
-      amount_in_current_scale(baseline.committed_amount(type)),
-      amount_in_current_scale(baseline.malloc_amount(type)),
-      baseline.malloc_count(type),
-      amount_in_current_scale(baseline.arena_amount(type)),
-      baseline.arena_count(type));
-  }
-
-  _outputer.done_category_summary();
-}
+  // Overall total
+  out->print_cr("\nNative Memory Tracking:\n");
+  out->print("Total: ");
+  print_total(total_reserved_amount, total_committed_amount);
+  out->print("\n");
 
-void BaselineReporter::report_virtual_memory_map(const MemBaseline& baseline) {
-  _outputer.start_virtual_memory_map();
-  MemBaseline* pBL = const_cast<MemBaseline*>(&baseline);
-  MemPointerArrayIteratorImpl itr = MemPointerArrayIteratorImpl(pBL->_vm_map);
-  VMMemRegionEx* rgn = (VMMemRegionEx*)itr.current();
-  while (rgn != NULL) {
-    if (rgn->is_reserved_region()) {
-      _outputer.reserved_memory_region(FLAGS_TO_MEMORY_TYPE(rgn->flags()),
-        rgn->base(), rgn->base() + rgn->size(), amount_in_current_scale(rgn->size()), rgn->pc());
-    } else {
-      _outputer.committed_memory_region(rgn->base(), rgn->base() + rgn->size(),
-        amount_in_current_scale(rgn->size()), rgn->pc());
-    }
-    rgn = (VMMemRegionEx*)itr.next();
+  // Summary by memory type
+  for (int index = 0; index < mt_number_of_types; index ++) {
+    MEMFLAGS flag = NMTUtil::index_to_flag(index);
+    // thread stack is reported as part of thread category
+    if (flag == mtThreadStack) continue;
+    MallocMemory* malloc_memory = _malloc_snapshot->by_type(flag);
+    VirtualMemory* virtual_memory = _vm_snapshot->by_type(flag);
+
+    report_summary_of_type(flag, malloc_memory, virtual_memory);
   }
-
-  _outputer.done_virtual_memory_map();
 }
 
-void BaselineReporter::report_callsites(const MemBaseline& baseline) {
-  _outputer.start_callsite();
-  MemBaseline* pBL = const_cast<MemBaseline*>(&baseline);
+void MemSummaryReporter::report_summary_of_type(MEMFLAGS flag,
+  MallocMemory*  malloc_memory, VirtualMemory* virtual_memory) {
 
-  pBL->_malloc_cs->sort((FN_SORT)MemBaseline::bl_malloc_sort_by_size);
-  pBL->_vm_cs->sort((FN_SORT)MemBaseline::bl_vm_sort_by_size);
+  size_t reserved_amount  = reserved_total (malloc_memory, virtual_memory);
+  size_t committed_amount = committed_total(malloc_memory, virtual_memory);
 
-  // walk malloc callsites
-  MemPointerArrayIteratorImpl malloc_itr(pBL->_malloc_cs);
-  MallocCallsitePointer*      malloc_callsite =
-                  (MallocCallsitePointer*)malloc_itr.current();
-  while (malloc_callsite != NULL) {
-    _outputer.malloc_callsite(malloc_callsite->addr(),
-        amount_in_current_scale(malloc_callsite->amount()), malloc_callsite->count());
-    malloc_callsite = (MallocCallsitePointer*)malloc_itr.next();
+  // Count thread's native stack in "Thread" category
+  if (flag == mtThread) {
+    const VirtualMemory* thread_stack_usage =
+      (const VirtualMemory*)_vm_snapshot->by_type(mtThreadStack);
+    reserved_amount  += thread_stack_usage->reserved();
+    committed_amount += thread_stack_usage->committed();
+  } else if (flag == mtNMT) {
+    // Count malloc headers in "NMT" category
+    reserved_amount  += _malloc_snapshot->malloc_overhead()->size();
+    committed_amount += _malloc_snapshot->malloc_overhead()->size();
   }
 
-  // walk virtual memory callsite
-  MemPointerArrayIteratorImpl vm_itr(pBL->_vm_cs);
-  VMCallsitePointer*          vm_callsite = (VMCallsitePointer*)vm_itr.current();
-  while (vm_callsite != NULL) {
-    _outputer.virtual_memory_callsite(vm_callsite->addr(),
-      amount_in_current_scale(vm_callsite->reserved_amount()),
-      amount_in_current_scale(vm_callsite->committed_amount()));
-    vm_callsite = (VMCallsitePointer*)vm_itr.next();
-  }
-  pBL->_malloc_cs->sort((FN_SORT)MemBaseline::bl_malloc_sort_by_pc);
-  pBL->_vm_cs->sort((FN_SORT)MemBaseline::bl_vm_sort_by_pc);
-  _outputer.done_callsite();
-}
+  if (amount_in_current_scale(reserved_amount) > 0) {
+    outputStream* out   = output();
+    const char*   scale = current_scale();
+    out->print("-%26s (", NMTUtil::flag_to_name(flag));
+    print_total(reserved_amount, committed_amount);
+    out->print_cr(")");
 
-void BaselineReporter::diff_baselines(const MemBaseline& cur, const MemBaseline& prev,
-  bool summary_only) {
-  assert(MemTracker::is_on(), "Native memory tracking is off");
-  _outputer.start(scale());
-  size_t total_reserved = cur.total_malloc_amount() + cur.total_reserved_amount();
-  size_t total_committed = cur.total_malloc_amount() + cur.total_committed_amount();
-
-  _outputer.diff_total_usage(
-    amount_in_current_scale(total_reserved), amount_in_current_scale(total_committed),
-    diff_in_current_scale(total_reserved,  (prev.total_malloc_amount() + prev.total_reserved_amount())),
-    diff_in_current_scale(total_committed, (prev.total_committed_amount() + prev.total_malloc_amount())));
+    if (flag == mtClass) {
+      // report class count
+      out->print_cr("%27s (classes #" SIZE_FORMAT ")", " ", _class_count);
+    } else if (flag == mtThread) {
+      // report thread count
+      out->print_cr("%27s (thread #" SIZE_FORMAT ")", " ", _malloc_snapshot->thread_count());
+      const VirtualMemory* thread_stack_usage =
+       _vm_snapshot->by_type(mtThreadStack);
+      out->print("%27s (stack: ", " ");
+      print_total(thread_stack_usage->reserved(), thread_stack_usage->committed());
+      out->print_cr(")");
+    }
 
-  _outputer.diff_num_of_classes(cur.number_of_classes(),
-       diff(cur.number_of_classes(), prev.number_of_classes()));
-  _outputer.diff_num_of_threads(cur.number_of_threads(),
-       diff(cur.number_of_threads(), prev.number_of_threads()));
+     // report malloc'd memory
+    if (amount_in_current_scale(malloc_memory->malloc_size()) > 0) {
+      // We don't know how many arena chunks are in used, so don't report the count
+      size_t count = (flag == mtChunk) ? 0 : malloc_memory->malloc_count();
+      print_malloc_line(malloc_memory->malloc_size(), count);
+    }
 
-  diff_summaries(cur, prev);
-  if (!summary_only && MemTracker::track_callsite()) {
-    diff_callsites(cur, prev);
-  }
-  _outputer.done();
-}
-
-void BaselineReporter::diff_summaries(const MemBaseline& cur, const MemBaseline& prev) {
-  _outputer.start_category_summary();
-  MEMFLAGS type;
+    if (amount_in_current_scale(virtual_memory->reserved()) > 0) {
+      print_virtual_memory_line(virtual_memory->reserved(), virtual_memory->committed());
+    }
 
-  for (int index = 0; index < NUMBER_OF_MEMORY_TYPE; index ++) {
-    type = MemBaseline::MemType2NameMap[index]._flag;
-    _outputer.diff_category_summary(type,
-      amount_in_current_scale(cur.reserved_amount(type)),
-      amount_in_current_scale(cur.committed_amount(type)),
-      amount_in_current_scale(cur.malloc_amount(type)),
-      cur.malloc_count(type),
-      amount_in_current_scale(cur.arena_amount(type)),
-      cur.arena_count(type),
-      diff_in_current_scale(cur.reserved_amount(type), prev.reserved_amount(type)),
-      diff_in_current_scale(cur.committed_amount(type), prev.committed_amount(type)),
-      diff_in_current_scale(cur.malloc_amount(type), prev.malloc_amount(type)),
-      diff(cur.malloc_count(type), prev.malloc_count(type)),
-      diff_in_current_scale(cur.arena_amount(type), prev.arena_amount(type)),
-      diff(cur.arena_count(type), prev.arena_count(type)));
+    if (amount_in_current_scale(malloc_memory->arena_size()) > 0) {
+      print_arena_line(malloc_memory->arena_size(), malloc_memory->arena_count());
+    }
+
+    if (flag == mtNMT &&
+      amount_in_current_scale(_malloc_snapshot->malloc_overhead()->size()) > 0) {
+      out->print_cr("%27s (tracking overhead=" SIZE_FORMAT "%s)", " ",
+        amount_in_current_scale(_malloc_snapshot->malloc_overhead()->size()), scale);
+    }
+
+    out->print_cr(" ");
   }
-
-  _outputer.done_category_summary();
 }
 
-void BaselineReporter::diff_callsites(const MemBaseline& cur, const MemBaseline& prev) {
-  _outputer.start_callsite();
-  MemBaseline* pBL_cur = const_cast<MemBaseline*>(&cur);
-  MemBaseline* pBL_prev = const_cast<MemBaseline*>(&prev);
+void MemDetailReporter::report_detail() {
+  // Start detail report
+  outputStream* out = output();
+  out->print_cr("Details:\n");
+
+  report_malloc_sites();
+  report_virtual_memory_allocation_sites();
+}
+
+void MemDetailReporter::report_malloc_sites() {
+  MallocSiteIterator         malloc_itr = _baseline.malloc_sites(MemBaseline::by_size);
+  if (malloc_itr.is_empty()) return;
+
+  outputStream* out = output();
 
-  // walk malloc callsites
-  MemPointerArrayIteratorImpl cur_malloc_itr(pBL_cur->_malloc_cs);
-  MemPointerArrayIteratorImpl prev_malloc_itr(pBL_prev->_malloc_cs);
+  const MallocSite* malloc_site;
+  while ((malloc_site = malloc_itr.next()) != NULL) {
+    // Don't report if size is too small
+    if (amount_in_current_scale(malloc_site->size()) == 0)
+      continue;
 
-  MallocCallsitePointer*      cur_malloc_callsite =
-                  (MallocCallsitePointer*)cur_malloc_itr.current();
-  MallocCallsitePointer*      prev_malloc_callsite =
-                  (MallocCallsitePointer*)prev_malloc_itr.current();
+    const NativeCallStack* stack = malloc_site->call_stack();
+    stack->print_on(out);
+    out->print("%29s", " ");
+    print_malloc(malloc_site->size(), malloc_site->count());
+    out->print_cr("\n");
+  }
+}
+
+void MemDetailReporter::report_virtual_memory_allocation_sites()  {
+  VirtualMemorySiteIterator  virtual_memory_itr =
+    _baseline.virtual_memory_sites(MemBaseline::by_size);
+
+  if (virtual_memory_itr.is_empty()) return;
+
+  outputStream* out = output();
+  const VirtualMemoryAllocationSite*  virtual_memory_site;
 
-  while (cur_malloc_callsite != NULL || prev_malloc_callsite != NULL) {
-    if (prev_malloc_callsite == NULL) {
-      assert(cur_malloc_callsite != NULL, "sanity check");
-      // this is a new callsite
-      _outputer.diff_malloc_callsite(cur_malloc_callsite->addr(),
-        amount_in_current_scale(cur_malloc_callsite->amount()),
-        cur_malloc_callsite->count(),
-        diff_in_current_scale(cur_malloc_callsite->amount(), 0),
-        diff(cur_malloc_callsite->count(), 0));
-      cur_malloc_callsite = (MallocCallsitePointer*)cur_malloc_itr.next();
-    } else if (cur_malloc_callsite == NULL) {
-      assert(prev_malloc_callsite != NULL, "Sanity check");
-      // this callsite is already gone
-      _outputer.diff_malloc_callsite(prev_malloc_callsite->addr(),
-        0, 0,
-        diff_in_current_scale(0, prev_malloc_callsite->amount()),
-        diff(0, prev_malloc_callsite->count()));
-      prev_malloc_callsite = (MallocCallsitePointer*)prev_malloc_itr.next();
-    } else {
-      assert(cur_malloc_callsite  != NULL,  "Sanity check");
-      assert(prev_malloc_callsite != NULL,  "Sanity check");
-      if (cur_malloc_callsite->addr() < prev_malloc_callsite->addr()) {
-        // this is a new callsite
-        _outputer.diff_malloc_callsite(cur_malloc_callsite->addr(),
-          amount_in_current_scale(cur_malloc_callsite->amount()),
-          cur_malloc_callsite->count(),
-          diff_in_current_scale(cur_malloc_callsite->amount(), 0),
-          diff(cur_malloc_callsite->count(), 0));
-          cur_malloc_callsite = (MallocCallsitePointer*)cur_malloc_itr.next();
-      } else if (cur_malloc_callsite->addr() > prev_malloc_callsite->addr()) {
-        // this callsite is already gone
-        _outputer.diff_malloc_callsite(prev_malloc_callsite->addr(),
-          0, 0,
-          diff_in_current_scale(0, prev_malloc_callsite->amount()),
-          diff(0, prev_malloc_callsite->count()));
-        prev_malloc_callsite = (MallocCallsitePointer*)prev_malloc_itr.next();
-      } else {
-        // the same callsite
-        _outputer.diff_malloc_callsite(cur_malloc_callsite->addr(),
-          amount_in_current_scale(cur_malloc_callsite->amount()),
-          cur_malloc_callsite->count(),
-          diff_in_current_scale(cur_malloc_callsite->amount(), prev_malloc_callsite->amount()),
-          diff(cur_malloc_callsite->count(), prev_malloc_callsite->count()));
-        cur_malloc_callsite = (MallocCallsitePointer*)cur_malloc_itr.next();
-        prev_malloc_callsite = (MallocCallsitePointer*)prev_malloc_itr.next();
-      }
-    }
+  while ((virtual_memory_site = virtual_memory_itr.next()) != NULL) {
+    // Don't report if size is too small
+    if (amount_in_current_scale(virtual_memory_site->reserved()) == 0)
+      continue;
+
+    const NativeCallStack* stack = virtual_memory_site->call_stack();
+    stack->print_on(out);
+    out->print("%28s (", " ");
+    print_total(virtual_memory_site->reserved(), virtual_memory_site->committed());
+    out->print_cr(")\n");
+  }
+}
+
+
+void MemDetailReporter::report_virtual_memory_map() {
+  // Virtual memory map always in base address order
+  VirtualMemoryAllocationIterator itr = _baseline.virtual_memory_allocations();
+  const ReservedMemoryRegion* rgn;
+
+  output()->print_cr("Virtual memory map:");
+  while ((rgn = itr.next()) != NULL) {
+    report_virtual_memory_region(rgn);
+  }
+}
+
+void MemDetailReporter::report_virtual_memory_region(const ReservedMemoryRegion* reserved_rgn) {
+  assert(reserved_rgn != NULL, "NULL pointer");
+
+  // Don't report if size is too small
+  if (amount_in_current_scale(reserved_rgn->size()) == 0) return;
+
+  outputStream* out = output();
+  const char* scale = current_scale();
+  const NativeCallStack*  stack = reserved_rgn->call_stack();
+  bool all_committed = reserved_rgn->all_committed();
+  const char* region_type = (all_committed ? "reserved and committed" : "reserved");
+  out->print_cr(" ");
+  print_virtual_memory_region(region_type, reserved_rgn->base(), reserved_rgn->size());
+  out->print(" for %s", NMTUtil::flag_to_name(reserved_rgn->flag()));
+  if (stack->is_empty()) {
+    out->print_cr(" ");
+  } else {
+    out->print_cr(" from");
+    stack->print_on(out, 4);
   }
 
-  // walk virtual memory callsite
-  MemPointerArrayIteratorImpl cur_vm_itr(pBL_cur->_vm_cs);
-  MemPointerArrayIteratorImpl prev_vm_itr(pBL_prev->_vm_cs);
-  VMCallsitePointer*          cur_vm_callsite = (VMCallsitePointer*)cur_vm_itr.current();
-  VMCallsitePointer*          prev_vm_callsite = (VMCallsitePointer*)prev_vm_itr.current();
-  while (cur_vm_callsite != NULL || prev_vm_callsite != NULL) {
-    if (prev_vm_callsite == NULL || cur_vm_callsite->addr() < prev_vm_callsite->addr()) {
-      // this is a new callsite
-      _outputer.diff_virtual_memory_callsite(cur_vm_callsite->addr(),
-        amount_in_current_scale(cur_vm_callsite->reserved_amount()),
-        amount_in_current_scale(cur_vm_callsite->committed_amount()),
-        diff_in_current_scale(cur_vm_callsite->reserved_amount(), 0),
-        diff_in_current_scale(cur_vm_callsite->committed_amount(), 0));
-      cur_vm_callsite = (VMCallsitePointer*)cur_vm_itr.next();
-    } else if (cur_vm_callsite == NULL || cur_vm_callsite->addr() > prev_vm_callsite->addr()) {
-      // this callsite is already gone
-      _outputer.diff_virtual_memory_callsite(prev_vm_callsite->addr(),
-        amount_in_current_scale(0),
-        amount_in_current_scale(0),
-        diff_in_current_scale(0, prev_vm_callsite->reserved_amount()),
-        diff_in_current_scale(0, prev_vm_callsite->committed_amount()));
-      prev_vm_callsite = (VMCallsitePointer*)prev_vm_itr.next();
-    } else { // the same callsite
-      _outputer.diff_virtual_memory_callsite(cur_vm_callsite->addr(),
-        amount_in_current_scale(cur_vm_callsite->reserved_amount()),
-        amount_in_current_scale(cur_vm_callsite->committed_amount()),
-        diff_in_current_scale(cur_vm_callsite->reserved_amount(), prev_vm_callsite->reserved_amount()),
-        diff_in_current_scale(cur_vm_callsite->committed_amount(), prev_vm_callsite->committed_amount()));
-      cur_vm_callsite  = (VMCallsitePointer*)cur_vm_itr.next();
-      prev_vm_callsite = (VMCallsitePointer*)prev_vm_itr.next();
-    }
-  }
-
-  _outputer.done_callsite();
-}
-
-size_t BaselineReporter::amount_in_current_scale(size_t amt) const {
-  return (size_t)(((float)amt/(float)_scale) + 0.5);
-}
-
-int BaselineReporter::diff_in_current_scale(size_t value1, size_t value2) const {
-  return (int)(((float)value1 - (float)value2)/((float)_scale) + 0.5);
-}
-
-int BaselineReporter::diff(size_t value1, size_t value2) const {
-  return ((int)value1 - (int)value2);
-}
-
-void BaselineTTYOutputer::start(size_t scale, bool report_diff) {
-  _scale = scale;
-  _output->print_cr(" ");
-  _output->print_cr("Native Memory Tracking:");
-  _output->print_cr(" ");
-}
-
-void BaselineTTYOutputer::done() {
-
-}
+  if (all_committed) return;
 
-void BaselineTTYOutputer::total_usage(size_t total_reserved, size_t total_committed) {
-  const char* unit = memory_unit(_scale);
-  _output->print_cr("Total:  reserved=%d%s,  committed=%d%s",
-    total_reserved, unit, total_committed, unit);
-}
-
-void BaselineTTYOutputer::start_category_summary() {
-  _output->print_cr(" ");
-}
-
-/**
- * report a summary of memory type
- */
-void BaselineTTYOutputer::category_summary(MEMFLAGS type,
-  size_t reserved_amt, size_t committed_amt, size_t malloc_amt,
-  size_t malloc_count, size_t arena_amt, size_t arena_count) {
-
-  // we report mtThreadStack under mtThread category
-  if (type == mtThreadStack) {
-    assert(malloc_amt == 0 && malloc_count == 0 && arena_amt == 0,
-      "Just check");
-    _thread_stack_reserved = reserved_amt;
-    _thread_stack_committed = committed_amt;
-  } else {
-    const char* unit = memory_unit(_scale);
-    size_t total_reserved = (reserved_amt + malloc_amt + arena_amt);
-    size_t total_committed = (committed_amt + malloc_amt + arena_amt);
-    if (type == mtThread) {
-      total_reserved += _thread_stack_reserved;
-      total_committed += _thread_stack_committed;
-    }
-
-    if (total_reserved > 0) {
-      _output->print_cr("-%26s (reserved=%d%s, committed=%d%s)",
-        MemBaseline::type2name(type), total_reserved, unit,
-        total_committed, unit);
-
-      if (type == mtClass) {
-        _output->print_cr("%27s (classes #%d)", " ", _num_of_classes);
-      } else if (type == mtThread) {
-        _output->print_cr("%27s (thread #%d)", " ", _num_of_threads);
-        _output->print_cr("%27s (stack: reserved=%d%s, committed=%d%s)", " ",
-          _thread_stack_reserved, unit, _thread_stack_committed, unit);
-      }
-
-      if (malloc_amt > 0) {
-        if (type != mtChunk) {
-          _output->print_cr("%27s (malloc=%d%s, #%d)", " ", malloc_amt, unit,
-            malloc_count);
-        } else {
-          _output->print_cr("%27s (malloc=%d%s)", " ", malloc_amt, unit);
-        }
-      }
-
-      if (reserved_amt > 0) {
-        _output->print_cr("%27s (mmap: reserved=%d%s, committed=%d%s)",
-          " ", reserved_amt, unit, committed_amt, unit);
-      }
-
-      if (arena_amt > 0) {
-        _output->print_cr("%27s (arena=%d%s, #%d)", " ", arena_amt, unit, arena_count);
-      }
-
-      _output->print_cr(" ");
+  CommittedRegionIterator itr = reserved_rgn->iterate_committed_regions();
+  const CommittedMemoryRegion* committed_rgn;
+  while ((committed_rgn = itr.next()) != NULL) {
+    // Don't report if size is too small
+    if (amount_in_current_scale(committed_rgn->size()) == 0) continue;
+    stack = committed_rgn->call_stack();
+    out->print("\n\t");
+    print_virtual_memory_region("committed", committed_rgn->base(), committed_rgn->size());
+    if (stack->is_empty()) {
+      out->print_cr(" ");
+    } else {
+      out->print_cr(" from");
+      stack->print_on(out, 12);
     }
   }
 }
 
-void BaselineTTYOutputer::done_category_summary() {
-  _output->print_cr(" ");
-}
+void MemSummaryDiffReporter::report_diff() {
+  const char* scale = current_scale();
+  outputStream* out = output();
+  out->print_cr("\nNative Memory Tracking:\n");
 
-
-void BaselineTTYOutputer::start_virtual_memory_map() {
-  _output->print_cr("Virtual memory map:");
-}
+  // Overall diff
+  out->print("Total: ");
+  print_virtual_memory_diff(_current_baseline.total_reserved_memory(),
+    _current_baseline.total_committed_memory(), _early_baseline.total_reserved_memory(),
+    _early_baseline.total_committed_memory());
 
-void BaselineTTYOutputer::reserved_memory_region(MEMFLAGS type, address base, address end,
-                                                 size_t size, address pc) {
-  const char* unit = memory_unit(_scale);
-  char buf[128];
-  int  offset;
-  _output->print_cr(" ");
-  _output->print_cr("[" PTR_FORMAT " - " PTR_FORMAT "] reserved %d%s for %s", base, end, size, unit,
-            MemBaseline::type2name(type));
-  if (os::dll_address_to_function_name(pc, buf, sizeof(buf), &offset)) {
-      _output->print_cr("\t\tfrom [%s+0x%x]", buf, offset);
-  }
-}
+  out->print_cr("\n");
 
-void BaselineTTYOutputer::committed_memory_region(address base, address end, size_t size, address pc) {
-  const char* unit = memory_unit(_scale);
-  char buf[128];
-  int  offset;
-  _output->print("\t[" PTR_FORMAT " - " PTR_FORMAT "] committed %d%s", base, end, size, unit);
-  if (os::dll_address_to_function_name(pc, buf, sizeof(buf), &offset)) {
-      _output->print_cr(" from [%s+0x%x]", buf, offset);
+  // Summary diff by memory type
+  for (int index = 0; index < mt_number_of_types; index ++) {
+    MEMFLAGS flag = NMTUtil::index_to_flag(index);
+    // thread stack is reported as part of thread category
+    if (flag == mtThreadStack) continue;
+    diff_summary_of_type(flag, _early_baseline.malloc_memory(flag),
+      _early_baseline.virtual_memory(flag), _current_baseline.malloc_memory(flag),
+      _current_baseline.virtual_memory(flag));
   }
 }
 
-void BaselineTTYOutputer::done_virtual_memory_map() {
-  _output->print_cr(" ");
-}
-
-
-
-void BaselineTTYOutputer::start_callsite() {
-  _output->print_cr("Details:");
-  _output->print_cr(" ");
-}
-
-void BaselineTTYOutputer::done_callsite() {
-  _output->print_cr(" ");
-}
+void MemSummaryDiffReporter::print_malloc_diff(size_t current_amount, size_t current_count,
+    size_t early_amount, size_t early_count) const {
+  const char* scale = current_scale();
+  outputStream* out = output();
 
-void BaselineTTYOutputer::malloc_callsite(address pc, size_t malloc_amt,
-  size_t malloc_count) {
-  if (malloc_amt > 0) {
-    const char* unit = memory_unit(_scale);
-    char buf[128];
-    int  offset;
-    if (pc == 0) {
-      _output->print("[BOOTSTRAP]%18s", " ");
-    } else if (os::dll_address_to_function_name(pc, buf, sizeof(buf), &offset)) {
-      _output->print_cr("[" PTR_FORMAT "] %s+0x%x", pc, buf, offset);
-      _output->print("%28s", " ");
-    } else {
-      _output->print("[" PTR_FORMAT "]%18s", pc, " ");
+  out->print("malloc=" SIZE_FORMAT "%s", amount_in_current_scale(current_amount), scale);
+  long amount_diff = diff_in_current_scale(current_amount, early_amount);
+  if (amount_diff != 0) {
+    out->print(" %+ld%s", amount_diff, scale);
+  }
+  if (current_count > 0) {
+    out->print(" #" SIZE_FORMAT "", current_count);
+    if (current_count != early_count) {
+      out->print(" %+d", (int)(current_count - early_count));
     }
-
-    _output->print_cr("(malloc=%d%s #%d)", malloc_amt, unit, malloc_count);
-    _output->print_cr(" ");
   }
 }
 
-void BaselineTTYOutputer::virtual_memory_callsite(address pc, size_t reserved_amt,
-  size_t committed_amt) {
-  if (reserved_amt > 0) {
-    const char* unit = memory_unit(_scale);
-    char buf[128];
-    int  offset;
-    if (pc == 0) {
-      _output->print("[BOOTSTRAP]%18s", " ");
-    } else if (os::dll_address_to_function_name(pc, buf, sizeof(buf), &offset)) {
-      _output->print_cr("[" PTR_FORMAT "] %s+0x%x", pc, buf, offset);
-      _output->print("%28s", " ");
-    } else {
-      _output->print("[" PTR_FORMAT "]%18s", pc, " ");
-    }
+void MemSummaryDiffReporter::print_arena_diff(size_t current_amount, size_t current_count,
+  size_t early_amount, size_t early_count) const {
+  const char* scale = current_scale();
+  outputStream* out = output();</