OpenJDK / haiku / haiku / hotspot
changeset 1015:c93664c68ae5
launcher from linux, with patch for gethrtime
| author | bachmann |
|---|---|
| date | Fri, 23 Oct 2009 10:48:33 -0700 |
| parents | fc2f92c37235 |
| children | 0512bf73ad56 |
| files | src/os/haiku/launcher/java.c src/os/haiku/launcher/java.h src/os/haiku/launcher/java_md.c src/os/haiku/launcher/java_md.h |
| diffstat | 4 files changed, 3883 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/os/haiku/launcher/java.c Fri Oct 23 10:48:33 2009 -0700 @@ -0,0 +1,1842 @@ +/* + * Copyright 1999-2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +/* + * Gamma (Hotspot internal engineering test) launcher based on 1.6.0-b28 JDK, + * search "GAMMA" for gamma specific changes. + * + * GAMMA: gamma launcher is much simpler than regular java launcher in that + * JVM is either statically linked in or it is installed in the + * same directory where the launcher exists, so we don't have to + * worry about choosing the right JVM based on command line flag, jar + * file and/or ergonomics. Intead of removing unused logic from source + * they are commented out with #ifndef GAMMA, hopefully it'll be easier + * to maintain this file in sync with regular JDK launcher. + */ + +/* + * Shared source for 'java' command line tool. + * + * If JAVA_ARGS is defined, then acts as a launcher for applications. For + * instance, the JDK command line tools such as javac and javadoc (see + * makefiles for more details) are built with this program. Any arguments + * prefixed with '-J' will be passed directly to the 'java' command. + */ + +#ifdef GAMMA +# ifdef JAVA_ARGS +# error Do NOT define JAVA_ARGS when building gamma launcher +# endif +# if !defined(LINK_INTO_AOUT) && !defined(LINK_INTO_LIBJVM) +# error Either LINK_INTO_AOUT or LINK_INTO_LIBJVM must be defined +# endif +#endif + +/* + * One job of the launcher is to remove command line options which the + * vm does not understand and will not process. These options include + * options which select which style of vm is run (e.g. -client and + * -server) as well as options which select the data model to use. + * Additionally, for tools which invoke an underlying vm "-J-foo" + * options are turned into "-foo" options to the vm. This option + * filtering is handled in a number of places in the launcher, some of + * it in machine-dependent code. In this file, the function + * CheckJVMType removes vm style options and TranslateDashJArgs + * removes "-J" prefixes. On unix platforms, the + * CreateExecutionEnvironment function from the unix java_md.c file + * processes and removes -d<n> options. However, in case + * CreateExecutionEnvironment does not need to exec because + * LD_LIBRARY_PATH is set acceptably and the data model does not need + * to be changed, ParseArguments will screen out the redundant -d<n> + * options and prevent them from being passed to the vm; this is done + * by using the machine-dependent call + * RemovableMachineDependentOption. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <jni.h> +#include "java.h" + +#ifndef GAMMA +#include "manifest_info.h" +#include "version_comp.h" +#endif + +#ifndef FULL_VERSION +#define FULL_VERSION JDK_MAJOR_VERSION "." JDK_MINOR_VERSION +#endif + +/* + * The following environment variable is used to influence the behavior + * of the jre exec'd through the SelectVersion routine. The command line + * options which specify the version are not passed to the exec'd version, + * because that jre may be an older version which wouldn't recognize them. + * This environment variable is known to this (and later) version and serves + * to suppress the version selection code. This is not only for efficiency, + * but also for correctness, since any command line options have been + * removed which would cause any value found in the manifest to be used. + * This would be incorrect because the command line options are defined + * to take precedence. + * + * The value associated with this environment variable is the MainClass + * name from within the executable jar file (if any). This is strictly a + * performance enhancement to avoid re-reading the jar file manifest. + * + * A NOTE TO DEVELOPERS: For performance reasons it is important that + * the program image remain relatively small until after SelectVersion + * CreateExecutionEnvironment have finished their possibly recursive + * processing. Watch everything, but resist all temptations to use Java + * interfaces. + */ +#define ENV_ENTRY "_JAVA_VERSION_SET" + +static jboolean printVersion = JNI_FALSE; /* print and exit */ +static jboolean showVersion = JNI_FALSE; /* print but continue */ +static char *progname; +jboolean _launcher_debug = JNI_FALSE; + +/* + * List of VM options to be specified when the VM is created. + */ +static JavaVMOption *options; +static int numOptions, maxOptions; + +/* + * Prototypes for functions internal to launcher. + */ +static void AddOption(char *str, void *info); +static void SetClassPath(char *s); +static void SelectVersion(int argc, char **argv, char **main_class); +static jboolean ParseArguments(int *pargc, char ***pargv, char **pjarfile, + char **pclassname, int *pret); +static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, + InvocationFunctions *ifn); +static jstring NewPlatformString(JNIEnv *env, char *s); +static jobjectArray NewPlatformStringArray(JNIEnv *env, char **strv, int strc); +static jclass LoadClass(JNIEnv *env, char *name); +static jstring GetMainClassName(JNIEnv *env, char *jarname); +static void SetJavaCommandLineProp(char* classname, char* jarfile, int argc, char** argv); +#ifdef GAMMA +static void SetJavaLauncherProp(void); +#endif + +#ifdef JAVA_ARGS +static void TranslateDashJArgs(int *pargc, char ***pargv); +static jboolean AddApplicationOptions(void); +#endif + +static void PrintJavaVersion(JNIEnv *env); +static void PrintUsage(void); +static jint PrintXUsage(void); + +static void SetPaths(int argc, char **argv); + +/* Maximum supported entries from jvm.cfg. */ +#define INIT_MAX_KNOWN_VMS 10 +/* Values for vmdesc.flag */ +#define VM_UNKNOWN -1 +#define VM_KNOWN 0 +#define VM_ALIASED_TO 1 +#define VM_WARN 2 +#define VM_ERROR 3 +#define VM_IF_SERVER_CLASS 4 +#define VM_IGNORE 5 +struct vmdesc { + char *name; + int flag; + char *alias; + char *server_class; +}; +static struct vmdesc *knownVMs = NULL; +static int knownVMsCount = 0; +static int knownVMsLimit = 0; + +static void GrowKnownVMs(); +static int KnownVMIndex(const char* name); +static void FreeKnownVMs(); + +jboolean ServerClassMachine(); + +/* flag which if set suppresses error messages from the launcher */ +static int noExitErrorMessage = 0; + +/* + * Entry point. + */ +int +main(int argc, char ** argv) +{ + JavaVM *vm = 0; + JNIEnv *env = 0; + char *jarfile = 0; + char *classname = 0; + char *s = 0; + char *main_class = NULL; + jstring mainClassName; + jclass mainClass; + jmethodID mainID; + jobjectArray mainArgs; + int ret; + InvocationFunctions ifn; + jlong start, end; + char jrepath[MAXPATHLEN], jvmpath[MAXPATHLEN]; + char ** original_argv = argv; + + /* + * Error message to print or display; by default the message will + * only be displayed in a window. + */ + char * message = "Fatal exception occurred. Program will exit."; + jboolean messageDest = JNI_FALSE; + + if (getenv("_JAVA_LAUNCHER_DEBUG") != 0) { + _launcher_debug = JNI_TRUE; + printf("----_JAVA_LAUNCHER_DEBUG----\n"); + } + +#ifndef GAMMA + /* + * Make sure the specified version of the JRE is running. + * + * There are three things to note about the SelectVersion() routine: + * 1) If the version running isn't correct, this routine doesn't + * return (either the correct version has been exec'd or an error + * was issued). + * 2) Argc and Argv in this scope are *not* altered by this routine. + * It is the responsibility of subsequent code to ignore the + * arguments handled by this routine. + * 3) As a side-effect, the variable "main_class" is guaranteed to + * be set (if it should ever be set). This isn't exactly the + * poster child for structured programming, but it is a small + * price to pay for not processing a jar file operand twice. + * (Note: This side effect has been disabled. See comment on + * bugid 5030265 below.) + */ + SelectVersion(argc, argv, &main_class); +#endif /* ifndef GAMMA */ + + /* copy original argv */ + { + int i; + original_argv = (char**)MemAlloc(sizeof(char*)*(argc+1)); + for(i = 0; i < argc+1; i++) + original_argv[i] = argv[i]; + } + + CreateExecutionEnvironment(&argc, &argv, + jrepath, sizeof(jrepath), + jvmpath, sizeof(jvmpath), + original_argv); + ifn.CreateJavaVM = 0; + ifn.GetDefaultJavaVMInitArgs = 0; + + if (_launcher_debug) + start = CounterGet(); + if (!LoadJavaVM(jvmpath, &ifn)) { + exit(6); + } + if (_launcher_debug) { + end = CounterGet(); + printf("%ld micro seconds to LoadJavaVM\n", + (long)(jint)Counter2Micros(end-start)); + } + +#ifdef JAVA_ARGS /* javac, jar and friends. */ + progname = "java"; +#else /* java, oldjava, javaw and friends */ +#ifdef PROGNAME + progname = PROGNAME; +#else + progname = *argv; + if ((s = strrchr(progname, FILE_SEPARATOR)) != 0) { + progname = s + 1; + } +#endif /* PROGNAME */ +#endif /* JAVA_ARGS */ + ++argv; + --argc; + +#ifdef JAVA_ARGS + /* Preprocess wrapper arguments */ + TranslateDashJArgs(&argc, &argv); + if (!AddApplicationOptions()) { + exit(1); + } +#endif + + /* Set default CLASSPATH */ + if ((s = getenv("CLASSPATH")) == 0) { + s = "."; + } +#ifndef JAVA_ARGS + SetClassPath(s); +#endif + + /* + * Parse command line options; if the return value of + * ParseArguments is false, the program should exit. + */ + if (!ParseArguments(&argc, &argv, &jarfile, &classname, &ret)) { + exit(ret); + } + + /* Override class path if -jar flag was specified */ + if (jarfile != 0) { + SetClassPath(jarfile); + } + + /* set the -Dsun.java.command pseudo property */ + SetJavaCommandLineProp(classname, jarfile, argc, argv); + +#ifdef GAMMA + /* Set the -Dsun.java.launcher pseudo property */ + SetJavaLauncherProp(); +#endif + + /* + * Done with all command line processing and potential re-execs so + * clean up the environment. + */ + (void)UnsetEnv(ENV_ENTRY); + + /* Initialize the virtual machine */ + + if (_launcher_debug) + start = CounterGet(); + if (!InitializeJVM(&vm, &env, &ifn)) { + ReportErrorMessage("Could not create the Java virtual machine.", + JNI_TRUE); + exit(1); + } + + if (printVersion || showVersion) { + PrintJavaVersion(env); + if ((*env)->ExceptionOccurred(env)) { + ReportExceptionDescription(env); + goto leave; + } + if (printVersion) { + ret = 0; + message = NULL; + goto leave; + } + if (showVersion) { + fprintf(stderr, "\n"); + } + } + + /* If the user specified neither a class name nor a JAR file */ + if (jarfile == 0 && classname == 0) { + PrintUsage(); + message = NULL; + goto leave; + } + +#ifndef GAMMA + FreeKnownVMs(); /* after last possible PrintUsage() */ +#endif + + if (_launcher_debug) { + end = CounterGet(); + printf("%ld micro seconds to InitializeJVM\n", + (long)(jint)Counter2Micros(end-start)); + } + + /* At this stage, argc/argv have the applications' arguments */ + if (_launcher_debug) { + int i = 0; + printf("Main-Class is '%s'\n", classname ? classname : ""); + printf("Apps' argc is %d\n", argc); + for (; i < argc; i++) { + printf(" argv[%2d] = '%s'\n", i, argv[i]); + } + } + + ret = 1; + + /* + * Get the application's main class. + * + * See bugid 5030265. The Main-Class name has already been parsed + * from the manifest, but not parsed properly for UTF-8 support. + * Hence the code here ignores the value previously extracted and + * uses the pre-existing code to reextract the value. This is + * possibly an end of release cycle expedient. However, it has + * also been discovered that passing some character sets through + * the environment has "strange" behavior on some variants of + * Windows. Hence, maybe the manifest parsing code local to the + * launcher should never be enhanced. + * + * Hence, future work should either: + * 1) Correct the local parsing code and verify that the + * Main-Class attribute gets properly passed through + * all environments, + * 2) Remove the vestages of maintaining main_class through + * the environment (and remove these comments). + */ + if (jarfile != 0) { + mainClassName = GetMainClassName(env, jarfile); + if ((*env)->ExceptionOccurred(env)) { + ReportExceptionDescription(env); + goto leave; + } + if (mainClassName == NULL) { + const char * format = "Failed to load Main-Class manifest " + "attribute from\n%s"; + message = (char*)MemAlloc((strlen(format) + strlen(jarfile)) * + sizeof(char)); + sprintf(message, format, jarfile); + messageDest = JNI_TRUE; + goto leave; + } + classname = (char *)(*env)->GetStringUTFChars(env, mainClassName, 0); + if (classname == NULL) { + ReportExceptionDescription(env); + goto leave; + } + mainClass = LoadClass(env, classname); + if(mainClass == NULL) { /* exception occurred */ + ReportExceptionDescription(env); + message = "Could not find the main class. Program will exit."; + goto leave; + } + (*env)->ReleaseStringUTFChars(env, mainClassName, classname); + } else { + mainClassName = NewPlatformString(env, classname); + if (mainClassName == NULL) { + const char * format = "Failed to load Main Class: %s"; + message = (char *)MemAlloc((strlen(format) + strlen(classname)) * + sizeof(char) ); + sprintf(message, format, classname); + messageDest = JNI_TRUE; + goto leave; + } + classname = (char *)(*env)->GetStringUTFChars(env, mainClassName, 0); + if (classname == NULL) { + ReportExceptionDescription(env); + goto leave; + } + mainClass = LoadClass(env, classname); + if(mainClass == NULL) { /* exception occurred */ + ReportExceptionDescription(env); + message = "Could not find the main class. Program will exit."; + goto leave; + } + (*env)->ReleaseStringUTFChars(env, mainClassName, classname); + } + + /* Get the application's main method */ + mainID = (*env)->GetStaticMethodID(env, mainClass, "main", + "([Ljava/lang/String;)V"); + if (mainID == NULL) { + if ((*env)->ExceptionOccurred(env)) { + ReportExceptionDescription(env); + } else { + message = "No main method found in specified class."; + messageDest = JNI_TRUE; + } + goto leave; + } + + { /* Make sure the main method is public */ + jint mods; + jmethodID mid; + jobject obj = (*env)->ToReflectedMethod(env, mainClass, + mainID, JNI_TRUE); + + if( obj == NULL) { /* exception occurred */ + ReportExceptionDescription(env); + goto leave; + } + + mid = + (*env)->GetMethodID(env, + (*env)->GetObjectClass(env, obj), + "getModifiers", "()I"); + if ((*env)->ExceptionOccurred(env)) { + ReportExceptionDescription(env); + goto leave; + } + + mods = (*env)->CallIntMethod(env, obj, mid); + if ((mods & 1) == 0) { /* if (!Modifier.isPublic(mods)) ... */ + message = "Main method not public."; + messageDest = JNI_TRUE; + goto leave; + } + } + + /* Build argument array */ + mainArgs = NewPlatformStringArray(env, argv, argc); + if (mainArgs == NULL) { + ReportExceptionDescription(env); + goto leave; + } + + /* Invoke main method. */ + (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); + + /* + * The launcher's exit code (in the absence of calls to + * System.exit) will be non-zero if main threw an exception. + */ + ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; + + /* + * Detach the main thread so that it appears to have ended when + * the application's main method exits. This will invoke the + * uncaught exception handler machinery if main threw an + * exception. An uncaught exception handler cannot change the + * launcher's return code except by calling System.exit. + */ + if ((*vm)->DetachCurrentThread(vm) != 0) { + message = "Could not detach main thread."; + messageDest = JNI_TRUE; + ret = 1; + goto leave; + } + + message = NULL; + + leave: + /* + * Wait for all non-daemon threads to end, then destroy the VM. + * This will actually create a trivial new Java waiter thread + * named "DestroyJavaVM", but this will be seen as a different + * thread from the one that executed main, even though they are + * the same C thread. This allows mainThread.join() and + * mainThread.isAlive() to work as expected. + */ + (*vm)->DestroyJavaVM(vm); + + if(message != NULL && !noExitErrorMessage) + ReportErrorMessage(message, messageDest); + return ret; +} + + +#ifndef GAMMA +/* + * Checks the command line options to find which JVM type was + * specified. If no command line option was given for the JVM type, + * the default type is used. The environment variable + * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also + * checked as ways of specifying which JVM type to invoke. + */ +char * +CheckJvmType(int *pargc, char ***argv, jboolean speculative) { + int i, argi; + int argc; + char **newArgv; + int newArgvIdx = 0; + int isVMType; + int jvmidx = -1; + char *jvmtype = getenv("JDK_ALTERNATE_VM"); + + argc = *pargc; + + /* To make things simpler we always copy the argv array */ + newArgv = MemAlloc((argc + 1) * sizeof(char *)); + + /* The program name is always present */ + newArgv[newArgvIdx++] = (*argv)[0]; + + for (argi = 1; argi < argc; argi++) { + char *arg = (*argv)[argi]; + isVMType = 0; + +#ifdef JAVA_ARGS + if (arg[0] != '-') { + newArgv[newArgvIdx++] = arg; + continue; + } +#else + if (strcmp(arg, "-classpath") == 0 || + strcmp(arg, "-cp") == 0) { + newArgv[newArgvIdx++] = arg; + argi++; + if (argi < argc) { + newArgv[newArgvIdx++] = (*argv)[argi]; + } + continue; + } + if (arg[0] != '-') break; +#endif + + /* Did the user pass an explicit VM type? */ + i = KnownVMIndex(arg); + if (i >= 0) { + jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ + isVMType = 1; + *pargc = *pargc - 1; + } + + /* Did the user specify an "alternate" VM? */ + else if (strncmp(arg, "-XXaltjvm=", 10) == 0 || strncmp(arg, "-J-XXaltjvm=", 12) == 0) { + isVMType = 1; + jvmtype = arg+((arg[1]=='X')? 10 : 12); + jvmidx = -1; + } + + if (!isVMType) { + newArgv[newArgvIdx++] = arg; + } + } + + /* + * Finish copying the arguments if we aborted the above loop. + * NOTE that if we aborted via "break" then we did NOT copy the + * last argument above, and in addition argi will be less than + * argc. + */ + while (argi < argc) { + newArgv[newArgvIdx++] = (*argv)[argi]; + argi++; + } + + /* argv is null-terminated */ + newArgv[newArgvIdx] = 0; + + /* Copy back argv */ + *argv = newArgv; + *pargc = newArgvIdx; + + /* use the default VM type if not specified (no alias processing) */ + if (jvmtype == NULL) { + char* result = knownVMs[0].name+1; + /* Use a different VM type if we are on a server class machine? */ + if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && + (ServerClassMachine() == JNI_TRUE)) { + result = knownVMs[0].server_class+1; + } + if (_launcher_debug) { + printf("Default VM: %s\n", result); + } + return result; + } + + /* if using an alternate VM, no alias processing */ + if (jvmidx < 0) + return jvmtype; + + /* Resolve aliases first */ + { + int loopCount = 0; + while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { + int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); + + if (loopCount > knownVMsCount) { + if (!speculative) { + ReportErrorMessage("Error: Corrupt jvm.cfg file; cycle in alias list.", + JNI_TRUE); + exit(1); + } else { + return "ERROR"; + /* break; */ + } + } + + if (nextIdx < 0) { + if (!speculative) { + ReportErrorMessage2("Error: Unable to resolve VM alias %s", + knownVMs[jvmidx].alias, JNI_TRUE); + exit(1); + } else { + return "ERROR"; + } + } + jvmidx = nextIdx; + jvmtype = knownVMs[jvmidx].name+1; + loopCount++; + } + } + + switch (knownVMs[jvmidx].flag) { + case VM_WARN: + if (!speculative) { + fprintf(stderr, "Warning: %s VM not supported; %s VM will be used\n", + jvmtype, knownVMs[0].name + 1); + } + /* fall through */ + case VM_IGNORE: + jvmtype = knownVMs[jvmidx=0].name + 1; + /* fall through */ + case VM_KNOWN: + break; + case VM_ERROR: + if (!speculative) { + ReportErrorMessage2("Error: %s VM not supported", jvmtype, JNI_TRUE); + exit(1); + } else { + return "ERROR"; + } + } + + return jvmtype; +} +#endif /* ifndef GAMMA */ + +/* + * Adds a new VM option with the given given name and value. + */ +static void +AddOption(char *str, void *info) +{ + /* + * Expand options array if needed to accommodate at least one more + * VM option. + */ + if (numOptions >= maxOptions) { + if (options == 0) { + maxOptions = 4; + options = MemAlloc(maxOptions * sizeof(JavaVMOption)); + } else { + JavaVMOption *tmp; + maxOptions *= 2; + tmp = MemAlloc(maxOptions * sizeof(JavaVMOption)); + memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); + free(options); + options = tmp; + } + } + options[numOptions].optionString = str; + options[numOptions++].extraInfo = info; +} + +static void +SetClassPath(char *s) +{ + char *def = MemAlloc(strlen(s) + 40); + sprintf(def, "-Djava.class.path=%s", s); + AddOption(def, NULL); +} + +#ifndef GAMMA +/* + * The SelectVersion() routine ensures that an appropriate version of + * the JRE is running. The specification for the appropriate version + * is obtained from either the manifest of a jar file (preferred) or + * from command line options. + */ +static void +SelectVersion(int argc, char **argv, char **main_class) +{ + char *arg; + char **new_argv; + char **new_argp; + char *operand; + char *version = NULL; + char *jre = NULL; + int jarflag = 0; + int restrict_search = -1; /* -1 implies not known */ + manifest_info info; + char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; + char *env_in; + int res; + + /* + * If the version has already been selected, set *main_class + * with the value passed through the environment (if any) and + * simply return. + */ + if ((env_in = getenv(ENV_ENTRY)) != NULL) { + if (*env_in != '\0') + *main_class = strdup(env_in); + return; + } + + /* + * Scan through the arguments for options relevant to multiple JRE + * support. For reference, the command line syntax is defined as: + * + * SYNOPSIS + * java [options] class [argument...] + * + * java [options] -jar file.jar [argument...] + * + * As the scan is performed, make a copy of the argument list with + * the version specification options (new to 1.5) removed, so that + * a version less than 1.5 can be exec'd. + */ + new_argv = MemAlloc((argc + 1) * sizeof(char*)); + new_argv[0] = argv[0]; + new_argp = &new_argv[1]; + argc--; + argv++; + while ((arg = *argv) != 0 && *arg == '-') { + if (strncmp(arg, "-version:", 9) == 0) { + version = arg + 9; + } else if (strcmp(arg, "-jre-restrict-search") == 0) { + restrict_search = 1; + } else if (strcmp(arg, "-no-jre-restrict-search") == 0) { + restrict_search = 0; + } else { + if (strcmp(arg, "-jar") == 0) + jarflag = 1; + /* deal with "unfortunate" classpath syntax */ + if ((strcmp(arg, "-classpath") == 0 || strcmp(arg, "-cp") == 0) && + (argc >= 2)) { + *new_argp++ = arg; + argc--; + argv++; + arg = *argv; + } + *new_argp++ = arg; + } + argc--; + argv++; + } + if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ + operand = NULL; + } else { + argc--; + *new_argp++ = operand = *argv++; + } + while (argc-- > 0) /* Copy over [argument...] */ + *new_argp++ = *argv++; + *new_argp = NULL; + + /* + * If there is a jar file, read the manifest. If the jarfile can't be + * read, the manifest can't be read from the jar file, or the manifest + * is corrupt, issue the appropriate error messages and exit. + * + * Even if there isn't a jar file, construct a manifest_info structure + * containing the command line information. It's a convenient way to carry + * this data around. + */ + if (jarflag && operand) { + if ((res = parse_manifest(operand, &info)) != 0) { + if (res == -1) + ReportErrorMessage2("Unable to access jarfile %s", + operand, JNI_TRUE); + else + ReportErrorMessage2("Invalid or corrupt jarfile %s", + operand, JNI_TRUE); + exit(1); + } + } else { + info.manifest_version = NULL; + info.main_class = NULL; + info.jre_version = NULL; + info.jre_restrict_search = 0; + } + + /* + * The JRE-Version and JRE-Restrict-Search values (if any) from the + * manifest are overwritten by any specified on the command line. + */ + if (version != NULL) + info.jre_version = version; + if (restrict_search != -1) + info.jre_restrict_search = restrict_search; + + /* + * "Valid" returns (other than unrecoverable errors) follow. Set + * main_class as a side-effect of this routine. + */ + if (info.main_class != NULL) + *main_class = strdup(info.main_class); + + /* + * If no version selection information is found either on the command + * line or in the manifest, simply return. + */ + if (info.jre_version == NULL) { + free_manifest(); + free(new_argv); + return; + } + + /* + * Check for correct syntax of the version specification (JSR 56). + */ + if (!valid_version_string(info.jre_version)) { + ReportErrorMessage2("Syntax error in version specification \"%s\"", + info.jre_version, JNI_TRUE); + exit(1); + } + + /* + * Find the appropriate JVM on the system. Just to be as forgiving as + * possible, if the standard algorithms don't locate an appropriate + * jre, check to see if the one running will satisfy the requirements. + * This can happen on systems which haven't been set-up for multiple + * JRE support. + */ + jre = LocateJRE(&info); + if (_launcher_debug) + printf("JRE-Version = %s, JRE-Restrict-Search = %s Selected = %s\n", + (info.jre_version?info.jre_version:"null"), + (info.jre_restrict_search?"true":"false"), (jre?jre:"null")); + if (jre == NULL) { + if (acceptable_release(FULL_VERSION, info.jre_version)) { + free_manifest(); + free(new_argv); + return; + } else { + ReportErrorMessage2( + "Unable to locate JRE meeting specification \"%s\"", + info.jre_version, JNI_TRUE); + exit(1); + } + } + + /* + * If I'm not the chosen one, exec the chosen one. Returning from + * ExecJRE indicates that I am indeed the chosen one. + * + * The private environment variable _JAVA_VERSION_SET is used to + * prevent the chosen one from re-reading the manifest file and + * using the values found within to override the (potential) command + * line flags stripped from argv (because the target may not + * understand them). Passing the MainClass value is an optimization + * to avoid locating, expanding and parsing the manifest extra + * times. + */ + if (info.main_class != NULL) + (void)strcat(env_entry, info.main_class); + (void)putenv(env_entry); + ExecJRE(jre, new_argv); + free_manifest(); + free(new_argv); + return; +} +#endif /* ifndef GAMMA */ + +/* + * Parses command line arguments. Returns JNI_FALSE if launcher + * should exit without starting vm (e.g. certain version and usage + * options); returns JNI_TRUE if vm needs to be started to process + * given options. *pret (the launcher process return value) is set to + * 0 for a normal exit. + */ +static jboolean +ParseArguments(int *pargc, char ***pargv, char **pjarfile, + char **pclassname, int *pret) +{ + int argc = *pargc; + char **argv = *pargv; + jboolean jarflag = JNI_FALSE; + char *arg; + + *pret = 1; + while ((arg = *argv) != 0 && *arg == '-') { + argv++; --argc; + if (strcmp(arg, "-classpath") == 0 || strcmp(arg, "-cp") == 0) { + if (argc < 1) { + ReportErrorMessage2("%s requires class path specification", + arg, JNI_TRUE); + PrintUsage(); + return JNI_FALSE; + } + SetClassPath(*argv); + argv++; --argc; + } else if (strcmp(arg, "-jar") == 0) { + jarflag = JNI_TRUE; + } else if (strcmp(arg, "-help") == 0 || + strcmp(arg, "-h") == 0 || + strcmp(arg, "-?") == 0) { + PrintUsage(); + *pret = 0; + return JNI_FALSE; + } else if (strcmp(arg, "-version") == 0) { + printVersion = JNI_TRUE; + return JNI_TRUE; + } else if (strcmp(arg, "-showversion") == 0) { + showVersion = JNI_TRUE; + } else if (strcmp(arg, "-X") == 0) { + *pret = PrintXUsage(); + return JNI_FALSE; +/* + * The following case provide backward compatibility with old-style + * command line options. + */ + } else if (strcmp(arg, "-fullversion") == 0) { + fprintf(stderr, "%s full version \"%s\"\n", progname, + FULL_VERSION); + *pret = 0; + return JNI_FALSE; + } else if (strcmp(arg, "-verbosegc") == 0) { + AddOption("-verbose:gc", NULL); + } else if (strcmp(arg, "-t") == 0) { + AddOption("-Xt", NULL); + } else if (strcmp(arg, "-tm") == 0) { + AddOption("-Xtm", NULL); + } else if (strcmp(arg, "-debug") == 0) { + AddOption("-Xdebug", NULL); + } else if (strcmp(arg, "-noclassgc") == 0) { + AddOption("-Xnoclassgc", NULL); + } else if (strcmp(arg, "-Xfuture") == 0) { + AddOption("-Xverify:all", NULL); + } else if (strcmp(arg, "-verify") == 0) { + AddOption("-Xverify:all", NULL); + } else if (strcmp(arg, "-verifyremote") == 0) { + AddOption("-Xverify:remote", NULL); + } else if (strcmp(arg, "-noverify") == 0) { + AddOption("-Xverify:none", NULL); + } else if (strcmp(arg, "-XXsuppressExitMessage") == 0) { + noExitErrorMessage = 1; + } else if (strncmp(arg, "-prof", 5) == 0) { + char *p = arg + 5; + char *tmp = MemAlloc(strlen(arg) + 50); + if (*p) { + sprintf(tmp, "-Xrunhprof:cpu=old,file=%s", p + 1); + } else { + sprintf(tmp, "-Xrunhprof:cpu=old,file=java.prof"); + } + AddOption(tmp, NULL); + } else if (strncmp(arg, "-ss", 3) == 0 || + strncmp(arg, "-oss", 4) == 0 || + strncmp(arg, "-ms", 3) == 0 || + strncmp(arg, "-mx", 3) == 0) { + char *tmp = MemAlloc(strlen(arg) + 6); + sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ + AddOption(tmp, NULL); + } else if (strcmp(arg, "-checksource") == 0 || + strcmp(arg, "-cs") == 0 || + strcmp(arg, "-noasyncgc") == 0) { + /* No longer supported */ + fprintf(stderr, + "Warning: %s option is no longer supported.\n", + arg); + } else if (strncmp(arg, "-version:", 9) == 0 || + strcmp(arg, "-no-jre-restrict-search") == 0 || + strcmp(arg, "-jre-restrict-search") == 0) { + ; /* Ignore machine independent options already handled */ + } else if (RemovableMachineDependentOption(arg) ) { + ; /* Do not pass option to vm. */ + } + else { + AddOption(arg, NULL); + } + } + + if (--argc >= 0) { + if (jarflag) { + *pjarfile = *argv++; + *pclassname = 0; + } else { + *pjarfile = 0; + *pclassname = *argv++; + } + *pargc = argc; + *pargv = argv; + } + + return JNI_TRUE; +} + +/* + * Initializes the Java Virtual Machine. Also frees options array when + * finished. + */ +static jboolean +InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) +{ + JavaVMInitArgs args; + jint r; + + memset(&args, 0, sizeof(args)); + args.version = JNI_VERSION_1_2; + args.nOptions = numOptions; + args.options = options; + args.ignoreUnrecognized = JNI_FALSE; + + if (_launcher_debug) { + int i = 0; + printf("JavaVM args:\n "); + printf("version 0x%08lx, ", (long)args.version); + printf("ignoreUnrecognized is %s, ", + args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); + printf("nOptions is %ld\n", (long)args.nOptions); + for (i = 0; i < numOptions; i++) + printf(" option[%2d] = '%s'\n", + i, args.options[i].optionString); + } + + r = ifn->CreateJavaVM(pvm, (void **)penv, &args); + free(options); + return r == JNI_OK; +} + + +#define NULL_CHECK0(e) if ((e) == 0) return 0 +#define NULL_CHECK(e) if ((e) == 0) return + +/* + * Returns a pointer to a block of at least 'size' bytes of memory. + * Prints error message and exits if the memory could not be allocated. + */ +void * +MemAlloc(size_t size) +{ + void *p = malloc(size); + if (p == 0) { + perror("malloc"); + exit(1); + } + return p; +} + +static jstring platformEncoding = NULL; +static jstring getPlatformEncoding(JNIEnv *env) { + if (platformEncoding == NULL) { + jstring propname = (*env)->NewStringUTF(env, "sun.jnu.encoding"); + if (propname) { + jclass cls; + jmethodID mid; + NULL_CHECK0 (cls = FindBootStrapClass(env, "java/lang/System")); + NULL_CHECK0 (mid = (*env)->GetStaticMethodID( + env, cls, + "getProperty", + "(Ljava/lang/String;)Ljava/lang/String;")); + platformEncoding = (*env)->CallStaticObjectMethod ( + env, cls, mid, propname); + } + } + return platformEncoding; +} + +static jboolean isEncodingSupported(JNIEnv *env, jstring enc) { + jclass cls; + jmethodID mid; + NULL_CHECK0 (cls = FindBootStrapClass(env, "java/nio/charset/Charset")); + NULL_CHECK0 (mid = (*env)->GetStaticMethodID( + env, cls, + "isSupported", + "(Ljava/lang/String;)Z")); + return (*env)->CallStaticBooleanMethod (env, cls, mid, enc); +} + +/* + * Returns a new Java string object for the specified platform string. + */ +static jstring +NewPlatformString(JNIEnv *env, char *s) +{ + int len = (int)strlen(s); + jclass cls; + jmethodID mid; + jbyteArray ary; + jstring enc; + + if (s == NULL) + return 0; + enc = getPlatformEncoding(env); + + ary = (*env)->NewByteArray(env, len); + if (ary != 0) { + jstring str = 0; + (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); + if (!(*env)->ExceptionOccurred(env)) { +#ifdef GAMMA + /* We support running JVM with older JDK, so here we have to deal */ + /* with the case that sun.jnu.encoding is undefined (enc == NULL) */ + if (enc != NULL && isEncodingSupported(env, enc) == JNI_TRUE) { +#else + if (isEncodingSupported(env, enc) == JNI_TRUE) { +#endif + NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); + NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", + "([BLjava/lang/String;)V")); + str = (*env)->NewObject(env, cls, mid, ary, enc); + } else { + /*If the encoding specified in sun.jnu.encoding is not + endorsed by "Charset.isSupported" we have to fall back + to use String(byte[]) explicitly here without specifying + the encoding name, in which the StringCoding class will + pickup the iso-8859-1 as the fallback converter for us. + */ + NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); + NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", + "([B)V")); + str = (*env)->NewObject(env, cls, mid, ary); + } + (*env)->DeleteLocalRef(env, ary); + return str; + } + } + return 0; +} + +/* + * Returns a new array of Java string objects for the specified + * array of platform strings. + */ +static jobjectArray +NewPlatformStringArray(JNIEnv *env, char **strv, int strc) +{ + jarray cls; + jarray ary; + int i; + + NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); + NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); + for (i = 0; i < strc; i++) { + jstring str = NewPlatformString(env, *strv++); + NULL_CHECK0(str); + (*env)->SetObjectArrayElement(env, ary, i, str); + (*env)->DeleteLocalRef(env, str); + } + return ary; +} + +/* + * Loads a class, convert the '.' to '/'. + */ +static jclass +LoadClass(JNIEnv *env, char *name) +{ + char *buf = MemAlloc(strlen(name) + 1); + char *s = buf, *t = name, c; + jclass cls; + jlong start, end; + + if (_launcher_debug) + start = CounterGet(); + + do { + c = *t++; + *s++ = (c == '.') ? '/' : c; + } while (c != '\0'); + // use the application class loader for main-class + cls = (*env)->FindClass(env, buf); + free(buf); + + if (_launcher_debug) { + end = CounterGet(); + printf("%ld micro seconds to load main class\n", + (long)(jint)Counter2Micros(end-start)); + printf("----_JAVA_LAUNCHER_DEBUG----\n"); + } + + return cls; +} + + +/* + * Returns the main class name for the specified jar file. + */ +static jstring +GetMainClassName(JNIEnv *env, char *jarname) +{ +#define MAIN_CLASS "Main-Class" + jclass cls; + jmethodID mid; + jobject jar, man, attr; + jstring str, result = 0; + + NULL_CHECK0(cls = FindBootStrapClass(env, "java/util/jar/JarFile")); + NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", + "(Ljava/lang/String;)V")); + NULL_CHECK0(str = NewPlatformString(env, jarname)); + NULL_CHECK0(jar = (*env)->NewObject(env, cls, mid, str)); + NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "getManifest", + "()Ljava/util/jar/Manifest;")); + man = (*env)->CallObjectMethod(env, jar, mid); + if (man != 0) { + NULL_CHECK0(mid = (*env)->GetMethodID(env, + (*env)->GetObjectClass(env, man), + "getMainAttributes", + "()Ljava/util/jar/Attributes;")); + attr = (*env)->CallObjectMethod(env, man, mid); + if (attr != 0) { + NULL_CHECK0(mid = (*env)->GetMethodID(env, + (*env)->GetObjectClass(env, attr), + "getValue", + "(Ljava/lang/String;)Ljava/lang/String;")); + NULL_CHECK0(str = NewPlatformString(env, MAIN_CLASS)); + result = (*env)->CallObjectMethod(env, attr, mid, str); + } + } + return result; +} + +#ifdef JAVA_ARGS +static char *java_args[] = JAVA_ARGS; +static char *app_classpath[] = APP_CLASSPATH; + +/* + * For tools convert 'javac -J-ms32m' to 'java -ms32m ...' + */ +static void +TranslateDashJArgs(int *pargc, char ***pargv) +{ + const int NUM_ARGS = (sizeof(java_args) / sizeof(char *)); + int argc = *pargc; + char **argv = *pargv; + int nargc = argc + NUM_ARGS; + char **nargv = MemAlloc((nargc + 1) * sizeof(char *)); + int i; + + *pargc = nargc; + *pargv = nargv; + + /* Copy the VM arguments (i.e. prefixed with -J) */ + for (i = 0; i < NUM_ARGS; i++) { + char *arg = java_args[i]; + if (arg[0] == '-' && arg[1] == 'J') { + *nargv++ = arg + 2; + } + } + + for (i = 0; i < argc; i++) { + char *arg = argv[i]; + if (arg[0] == '-' && arg[1] == 'J') { + if (arg[2] == '\0') { + ReportErrorMessage("Error: the -J option should not be " + "followed by a space.", JNI_TRUE); + exit(1); + } + *nargv++ = arg + 2; + } + } + + /* Copy the rest of the arguments */ + for (i = 0; i < NUM_ARGS; i++) { + char *arg = java_args[i]; + if (arg[0] != '-' || arg[1] != 'J') { + *nargv++ = arg; + } + } + for (i = 0; i < argc; i++) { + char *arg = argv[i]; + if (arg[0] != '-' || arg[1] != 'J') { + *nargv++ = arg; + } + } + *nargv = 0; +} + +/* + * For our tools, we try to add 3 VM options: + * -Denv.class.path=<envcp> + * -Dapplication.home=<apphome> + * -Djava.class.path=<appcp> + * <envcp> is the user's setting of CLASSPATH -- for instance the user + * tells javac where to find binary classes through this environment + * variable. Notice that users will be able to compile against our + * tools classes (sun.tools.javac.Main) only if they explicitly add + * tools.jar to CLASSPATH. + * <apphome> is the directory where the application is installed. + * <appcp> is the classpath to where our apps' classfiles are. + */ +static jboolean +AddApplicationOptions() +{ + const int NUM_APP_CLASSPATH = (sizeof(app_classpath) / sizeof(char *)); + char *s, *envcp, *appcp, *apphome; + char home[MAXPATHLEN]; /* application home */ + char separator[] = { PATH_SEPARATOR, '\0' }; + int size, i; + int strlenHome; + + s = getenv("CLASSPATH"); + if (s) { + /* 40 for -Denv.class.path= */ + envcp = (char *)MemAlloc(strlen(s) + 40); + sprintf(envcp, "-Denv.class.path=%s", s); + AddOption(envcp, NULL); + } + + if (!GetApplicationHome(home, sizeof(home))) { + ReportErrorMessage("Can't determine application home", JNI_TRUE); + return JNI_FALSE; + } + + /* 40 for '-Dapplication.home=' */ + apphome = (char *)MemAlloc(strlen(home) + 40); + sprintf(apphome, "-Dapplication.home=%s", home); + AddOption(apphome, NULL); + + /* How big is the application's classpath? */ + size = 40; /* 40: "-Djava.class.path=" */ + strlenHome = (int)strlen(home); + for (i = 0; i < NUM_APP_CLASSPATH; i++) { + size += strlenHome + (int)strlen(app_classpath[i]) + 1; /* 1: separator */ + } + appcp = (char *)MemAlloc(size + 1); + strcpy(appcp, "-Djava.class.path="); + for (i = 0; i < NUM_APP_CLASSPATH; i++) { + strcat(appcp, home); /* c:\program files\myapp */ + strcat(appcp, app_classpath[i]); /* \lib\myapp.jar */ + strcat(appcp, separator); /* ; */ + } + appcp[strlen(appcp)-1] = '\0'; /* remove trailing path separator */ + AddOption(appcp, NULL); + return JNI_TRUE; +} +#endif + +/* + * inject the -Dsun.java.command pseudo property into the args structure + * this pseudo property is used in the HotSpot VM to expose the + * Java class name and arguments to the main method to the VM. The + * HotSpot VM uses this pseudo property to store the Java class name + * (or jar file name) and the arguments to the class's main method + * to the instrumentation memory region. The sun.java.command pseudo + * property is not exported by HotSpot to the Java layer. + */ +void +SetJavaCommandLineProp(char *classname, char *jarfile, + int argc, char **argv) +{ + + int i = 0; + size_t len = 0; + char* javaCommand = NULL; + char* dashDstr = "-Dsun.java.command="; + + if (classname == NULL && jarfile == NULL) { + /* unexpected, one of these should be set. just return without + * setting the property + */ + return; + } + + /* if the class name is not set, then use the jarfile name */ + if (classname == NULL) { + classname = jarfile; + } + + /* determine the amount of memory to allocate assuming + * the individual components will be space separated + */ + len = strlen(classname); + for (i = 0; i < argc; i++) { + len += strlen(argv[i]) + 1; + } + + /* allocate the memory */ + javaCommand = (char*) MemAlloc(len + strlen(dashDstr) + 1); + + /* build the -D string */ + *javaCommand = '\0'; + strcat(javaCommand, dashDstr); + strcat(javaCommand, classname); + + for (i = 0; i < argc; i++) { + /* the components of the string are space separated. In + * the case of embedded white space, the relationship of + * the white space separated components to their true + * positional arguments will be ambiguous. This issue may + * be addressed in a future release. + */ + strcat(javaCommand, " "); + strcat(javaCommand, argv[i]); + } + + AddOption(javaCommand, NULL); +} + +/* + * JVM wants to know launcher type, so tell it. + */ +#ifdef GAMMA +void SetJavaLauncherProp() { + AddOption("-Dsun.java.launcher=" LAUNCHER_TYPE, NULL); +} +#endif + +/* + * Prints the version information from the java.version and other properties. + */ +static void +PrintJavaVersion(JNIEnv *env) +{ + jclass ver; + jmethodID print; + + NULL_CHECK(ver = FindBootStrapClass(env, "sun/misc/Version")); + NULL_CHECK(print = (*env)->GetStaticMethodID(env, ver, "print", "()V")); + + (*env)->CallStaticVoidMethod(env, ver, print); +} + +/* + * Prints default usage message. + */ +static void +PrintUsage(void) +{ + int i; + + fprintf(stdout, + "Usage: %s [-options] class [args...]\n" + " (to execute a class)\n" + " or %s [-options] -jar jarfile [args...]\n" + " (to execute a jar file)\n" + "\n" + "where options include:\n", + progname, + progname); + +#ifndef GAMMA + PrintMachineDependentOptions(); + + if ((knownVMs[0].flag == VM_KNOWN) || + (knownVMs[0].flag == VM_IF_SERVER_CLASS)) { + fprintf(stdout, " %s\t to select the \"%s\" VM\n", + knownVMs[0].name, knownVMs[0].name+1); + } + for (i=1; i<knownVMsCount; i++) { + if (knownVMs[i].flag == VM_KNOWN) + fprintf(stdout, " %s\t to select the \"%s\" VM\n", + knownVMs[i].name, knownVMs[i].name+1); + } + for (i=1; i<knownVMsCount; i++) { + if (knownVMs[i].flag == VM_ALIASED_TO) + fprintf(stdout, " %s\t is a synonym for " + "the \"%s\" VM [deprecated]\n", + knownVMs[i].name, knownVMs[i].alias+1); + } + + /* The first known VM is the default */ + { + const char* defaultVM = knownVMs[0].name+1; + const char* punctuation = "."; + const char* reason = ""; + if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && + (ServerClassMachine() == JNI_TRUE)) { + defaultVM = knownVMs[0].server_class+1; + punctuation = ", "; + reason = "because you are running on a server-class machine.\n"; + } + fprintf(stdout, " The default VM is %s%s\n", + defaultVM, punctuation); + fprintf(stdout, " %s\n", + reason); + } +#endif /* ifndef GAMMA */ + + fprintf(stdout, +" -cp <class search path of directories and zip/jar files>\n" +" -classpath <class search path of directories and zip/jar files>\n" +" A %c separated list of directories, JAR archives,\n" +" and ZIP archives to search for class files.\n" +" -D<name>=<value>\n" +" set a system property\n" +" -verbose[:class|gc|jni]\n" +" enable verbose output\n" +" -version print product version and exit\n" +" -version:<value>\n" +" require the specified version to run\n" +" -showversion print product version and continue\n" +" -jre-restrict-search | -jre-no-restrict-search\n" +" include/exclude user private JREs in the version search\n" +" -? -help print this help message\n" +" -X print help on non-standard options\n" +" -ea[:<packagename>...|:<classname>]\n" +" -enableassertions[:<packagename>...|:<classname>]\n" +" enable assertions\n" +" -da[:<packagename>...|:<classname>]\n" +" -disableassertions[:<packagename>...|:<classname>]\n" +" disable assertions\n" +" -esa | -enablesystemassertions\n" +" enable system assertions\n" +" -dsa | -disablesystemassertions\n" +" disable system assertions\n" +" -agentlib:<libname>[=<options>]\n" +" load native agent library <libname>, e.g. -agentlib:hprof\n" +" see also, -agentlib:jdwp=help and -agentlib:hprof=help\n" +" -agentpath:<pathname>[=<options>]\n" +" load native agent library by full pathname\n" +" -javaagent:<jarpath>[=<options>]\n" +" load Java programming language agent, see java.lang.instrument\n" + + ,PATH_SEPARATOR); +} + +/* + * Print usage message for -X options. + */ +static jint +PrintXUsage(void) +{ + char path[MAXPATHLEN]; + char buf[128]; + size_t n; + FILE *fp; + + GetXUsagePath(path, sizeof(path)); + fp = fopen(path, "r"); + if (fp == 0) { + fprintf(stderr, "Can't open %s\n", path); + return 1; + } + while ((n = fread(buf, 1, sizeof(buf), fp)) != 0) { + fwrite(buf, 1, n, stdout); + } + fclose(fp); + return 0; +} + +#ifndef GAMMA + +/* + * Read the jvm.cfg file and fill the knownJVMs[] array. + * + * The functionality of the jvm.cfg file is subject to change without + * notice and the mechanism will be removed in the future. + * + * The lexical structure of the jvm.cfg file is as follows: + * + * jvmcfg := { vmLine } + * vmLine := knownLine + * | aliasLine + * | warnLine + * | ignoreLine + * | errorLine + * | predicateLine + * | commentLine + * knownLine := flag "KNOWN" EOL + * warnLine := flag "WARN" EOL + * ignoreLine := flag "IGNORE" EOL + * errorLine := flag "ERROR" EOL + * aliasLine := flag "ALIASED_TO" flag EOL + * predicateLine := flag "IF_SERVER_CLASS" flag EOL + * commentLine := "#" text EOL + * flag := "-" identifier + * + * The semantics are that when someone specifies a flag on the command line: + * - if the flag appears on a knownLine, then the identifier is used as + * the name of the directory holding the JVM library (the name of the JVM). + * - if the flag appears as the first flag on an aliasLine, the identifier + * of the second flag is used as the name of the JVM. + * - if the flag appears on a warnLine, the identifier is used as the + * name of the JVM, but a warning is generated. + * - if the flag appears on an ignoreLine, the identifier is recognized as the + * name of a JVM, but the identifier is ignored and the default vm used + * - if the flag appears on an errorLine, an error is generated. + * - if the flag appears as the first flag on a predicateLine, and + * the machine on which you are running passes the predicate indicated, + * then the identifier of the second flag is used as the name of the JVM, + * otherwise the identifier of the first flag is used as the name of the JVM. + * If no flag is given on the command line, the first vmLine of the jvm.cfg + * file determines the name of the JVM. + * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, + * since they only make sense if someone hasn't specified the name of the + * JVM on the command line. + * + * The intent of the jvm.cfg file is to allow several JVM libraries to + * be installed in different subdirectories of a single JRE installation, + * for space-savings and convenience in testing. + * The intent is explicitly not to provide a full aliasing or predicate + * mechanism. + */ +jint +ReadKnownVMs(const char *jrepath, char * arch, jboolean speculative) +{ + FILE *jvmCfg; + char jvmCfgName[MAXPATHLEN+20]; + char line[MAXPATHLEN+20]; + int cnt = 0; + int lineno = 0; + jlong start, end; + int vmType; + char *tmpPtr; + char *altVMName; + char *serverClassVMName; + static char *whiteSpace = " \t"; + if (_launcher_debug) { + start = CounterGet(); + } + + strcpy(jvmCfgName, jrepath); + strcat(jvmCfgName, FILESEP "lib" FILESEP); + strcat(jvmCfgName, arch); + strcat(jvmCfgName, FILESEP "jvm.cfg"); + + jvmCfg = fopen(jvmCfgName, "r"); + if (jvmCfg == NULL) { + if (!speculative) { + ReportErrorMessage2("Error: could not open `%s'", jvmCfgName, + JNI_TRUE); + exit(1); + } else { + return -1; + } + } + while (fgets(line, sizeof(line), jvmCfg) != NULL) { + vmType = VM_UNKNOWN; + lineno++; + if (line[0] == '#') + continue; + if (line[0] != '-') { + fprintf(stderr, "Warning: no leading - on line %d of `%s'\n", + lineno, jvmCfgName); + } + if (cnt >= knownVMsLimit) { + GrowKnownVMs(cnt); + } + line[strlen(line)-1] = '\0'; /* remove trailing newline */ + tmpPtr = line + strcspn(line, whiteSpace); + if (*tmpPtr == 0) { + fprintf(stderr, "Warning: missing VM type on line %d of `%s'\n", + lineno, jvmCfgName); + } else { + /* Null-terminate this string for strdup below */ + *tmpPtr++ = 0; + tmpPtr += strspn(tmpPtr, whiteSpace); + if (*tmpPtr == 0) { + fprintf(stderr, "Warning: missing VM type on line %d of `%s'\n", + lineno, jvmCfgName); + } else { + if (!strncmp(tmpPtr, "KNOWN", strlen("KNOWN"))) { + vmType = VM_KNOWN; + } else if (!strncmp(tmpPtr, "ALIASED_TO", strlen("ALIASED_TO"))) { + tmpPtr += strcspn(tmpPtr, whiteSpace); + if (*tmpPtr != 0) { + tmpPtr += strspn(tmpPtr, whiteSpace); + } + if (*tmpPtr == 0) { + fprintf(stderr, "Warning: missing VM alias on line %d of `%s'\n", + lineno, jvmCfgName); + } else { + /* Null terminate altVMName */ + altVMName = tmpPtr; + tmpPtr += strcspn(tmpPtr, whiteSpace); + *tmpPtr = 0; + vmType = VM_ALIASED_TO; + } + } else if (!strncmp(tmpPtr, "WARN", strlen("WARN"))) { + vmType = VM_WARN; + } else if (!strncmp(tmpPtr, "IGNORE", strlen("IGNORE"))) { + vmType = VM_IGNORE; + } else if (!strncmp(tmpPtr, "ERROR", strlen("ERROR"))) { + vmType = VM_ERROR; + } else if (!strncmp(tmpPtr, + "IF_SERVER_CLASS", + strlen("IF_SERVER_CLASS"))) { + tmpPtr += strcspn(tmpPtr, whiteSpace); + if (*tmpPtr != 0) { + tmpPtr += strspn(tmpPtr, whiteSpace); + } + if (*tmpPtr == 0) { + fprintf(stderr, "Warning: missing server class VM on line %d of `%s'\n", + lineno, jvmCfgName); + } else { + /* Null terminate server class VM name */ + serverClassVMName = tmpPtr; + tmpPtr += strcspn(tmpPtr, whiteSpace); + *tmpPtr = 0; + vmType = VM_IF_SERVER_CLASS; + } + } else { + fprintf(stderr, "Warning: unknown VM type on line %d of `%s'\n", + lineno, &jvmCfgName[0]); + vmType = VM_KNOWN; + } + } + } + + if (_launcher_debug) + printf("jvm.cfg[%d] = ->%s<-\n", cnt, line); + if (vmType != VM_UNKNOWN) { + knownVMs[cnt].name = strdup(line); + knownVMs[cnt].flag = vmType; + switch (vmType) { + default: + break; + case VM_ALIASED_TO: + knownVMs[cnt].alias = strdup(altVMName); + if (_launcher_debug) { + printf(" name: %s vmType: %s alias: %s\n", + knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); + } + break; + case VM_IF_SERVER_CLASS: + knownVMs[cnt].server_class = strdup(serverClassVMName); + if (_launcher_debug) { + printf(" name: %s vmType: %s server_class: %s\n", + knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class); + } + break; + } + cnt++; + } + } + fclose(jvmCfg); + knownVMsCount = cnt; + + if (_launcher_debug) { + end = CounterGet(); + printf("%ld micro seconds to parse jvm.cfg\n", + (long)(jint)Counter2Micros(end-start)); + } + + return cnt; +} + + +static void +GrowKnownVMs(int minimum) +{ + struct vmdesc* newKnownVMs; + int newMax; + + newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); + if (newMax <= minimum) { + newMax = minimum; + } + newKnownVMs = (struct vmdesc*) MemAlloc(newMax * sizeof(struct vmdesc)); + if (knownVMs != NULL) { + memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); + } + free(knownVMs); + knownVMs = newKnownVMs; + knownVMsLimit = newMax; +} + + +/* Returns index of VM or -1 if not found */ +static int +KnownVMIndex(const char* name) +{ + int i; + if (strncmp(name, "-J", 2) == 0) name += 2; + for (i = 0; i < knownVMsCount; i++) { + if (!strcmp(name, knownVMs[i].name)) { + return i; + } + } + return -1; +} + +static void +FreeKnownVMs() +{ + int i; + for (i = 0; i < knownVMsCount; i++) { + free(knownVMs[i].name); + knownVMs[i].name = NULL; + } + free(knownVMs); +} + +#endif /* ifndef GAMMA */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/os/haiku/launcher/java.h Fri Oct 23 10:48:33 2009 -0700 @@ -0,0 +1,114 @@ +/* + * Copyright 1999-2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +/* + * Gamma (Hotspot internal engineering test) launcher based on 1.6.0-b28 JDK, + * search "GAMMA" for gamma specific changes. + */ + +#ifndef _JAVA_H_ +#define _JAVA_H_ + +/* + * Get system specific defines. + */ +#include "jni.h" +#include "java_md.h" + +/* + * Pointers to the needed JNI invocation API, initialized by LoadJavaVM. + */ +typedef jint (JNICALL *CreateJavaVM_t)(JavaVM **pvm, void **env, void *args); +typedef jint (JNICALL *GetDefaultJavaVMInitArgs_t)(void *args); + +typedef struct { + CreateJavaVM_t CreateJavaVM; + GetDefaultJavaVMInitArgs_t GetDefaultJavaVMInitArgs; +} InvocationFunctions; + +/* + * Prototypes for launcher functions in the system specific java_md.c. + */ + +jboolean +LoadJavaVM(const char *jvmpath, InvocationFunctions *ifn); + +void +GetXUsagePath(char *buf, jint bufsize); + +jboolean +GetApplicationHome(char *buf, jint bufsize); + +const char * +GetArch(); + +void CreateExecutionEnvironment(int *_argc, + char ***_argv, + char jrepath[], + jint so_jrepath, + char jvmpath[], + jint so_jvmpath, + char **original_argv); + +/* + * Report an error message to stderr or a window as appropriate. The + * flag always is set to JNI_TRUE if message is to be reported to both + * strerr and windows and set to JNI_FALSE if the message should only + * be sent to a window. + */ +void ReportErrorMessage(char * message, jboolean always); +void ReportErrorMessage2(char * format, char * string, jboolean always); + +/* + * Report an exception which terminates the vm to stderr or a window + * as appropriate. + */ +void ReportExceptionDescription(JNIEnv * env); + +jboolean RemovableMachineDependentOption(char * option); +void PrintMachineDependentOptions(); + +/* + * Functions defined in java.c and used in java_md.c. + */ +jint ReadKnownVMs(const char *jrepath, char * arch, jboolean speculative); +char *CheckJvmType(int *argc, char ***argv, jboolean speculative); +void* MemAlloc(size_t size); + +/* + * Make launcher spit debug output. + */ +extern jboolean _launcher_debug; +/* + * This allows for finding classes from the VM's bootstrap class loader + * directly, FindClass uses the application class loader internally, this will + * cause unnecessary searching of the classpath for the required classes. + */ +typedef jclass (JNICALL FindClassFromBootLoader_t(JNIEnv *env, + const char *name, + jboolean throwError)); + +jclass FindBootStrapClass(JNIEnv *env, const char *classname); + +#endif /* _JAVA_H_ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/os/haiku/launcher/java_md.c Fri Oct 23 10:48:33 2009 -0700 @@ -0,0 +1,1848 @@ +/* + * Copyright 1999-2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +/* + * Gamma (Hotspot internal engineering test) launcher based on 1.6.0-b28 JDK, + * search "GAMMA" for gamma specific changes. + */ + +#include "java.h" +#include <dirent.h> +#include <dlfcn.h> +#include <fcntl.h> +#include <inttypes.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <limits.h> +#include <sys/stat.h> +#include <unistd.h> +#include <sys/types.h> + +#ifndef GAMMA +#include "manifest_info.h" +#include "version_comp.h" +#endif + +#define JVM_DLL "libjvm.so" +#define JAVA_DLL "libjava.so" + +#ifndef GAMMA /* launcher.make defines ARCH */ + +/* + * If a processor / os combination has the ability to run binaries of + * two data models and cohabitation of jre/jdk bits with both data + * models is supported, then DUAL_MODE is defined. When DUAL_MODE is + * defined, the architecture names for the narrow and wide version of + * the architecture are defined in BIG_ARCH and SMALL_ARCH. Currently + * only Solaris on sparc/sparcv9 and i586/amd64 is DUAL_MODE; linux + * i586/amd64 could be defined as DUAL_MODE but that is not the + * current policy. + */ + +#ifdef _LP64 + +# ifdef ia64 +# define ARCH "ia64" +# elif defined(amd64) +# define ARCH "amd64" +# elif defined(__sparc) +# define ARCH "sparcv9" +# else +# define ARCH "unknown" /* unknown 64-bit architecture */ +# endif + +#else /* 32-bit data model */ + +# ifdef i586 +# define ARCH "i386" +# elif defined(__sparc) +# define ARCH "sparc" +# endif + +#endif /* _LP64 */ + +#ifdef __sun +# define DUAL_MODE +# ifdef __sparc +# define BIG_ARCH "sparcv9" +# define SMALL_ARCH "sparc" +# else +# define BIG_ARCH "amd64" +# define SMALL_ARCH "i386" +# endif +# include <sys/systeminfo.h> +# include <sys/elf.h> +# include <stdio.h> +#else +# ifndef ARCH +# include <sys/systeminfo.h> +# endif +#endif + +#endif /* ifndef GAMMA */ + +/* pointer to environment */ +extern char **environ; + +#ifndef GAMMA + +/* + * A collection of useful strings. One should think of these as #define + * entries, but actual strings can be more efficient (with many compilers). + */ +#ifdef __linux__ +static const char *system_dir = "/usr/java"; +static const char *user_dir = "/java"; +#else /* Solaris */ +static const char *system_dir = "/usr/jdk"; +static const char *user_dir = "/jdk"; +#endif + +#endif /* ifndef GAMMA */ + +/* + * Flowchart of launcher execs and options processing on unix + * + * The selection of the proper vm shared library to open depends on + * several classes of command line options, including vm "flavor" + * options (-client, -server) and the data model options, -d32 and + * -d64, as well as a version specification which may have come from + * the command line or from the manifest of an executable jar file. + * The vm selection options are not passed to the running + * virtual machine; they must be screened out by the launcher. + * + * The version specification (if any) is processed first by the + * platform independent routine SelectVersion. This may result in + * the exec of the specified launcher version. + * + * Typically, the launcher execs at least once to ensure a suitable + * LD_LIBRARY_PATH is in effect for the process. The first exec + * screens out all the data model options; leaving the choice of data + * model implicit in the binary selected to run. However, in case no + * exec is done, the data model options are screened out before the vm + * is invoked. + * + * incoming argv ------------------------------ + * | | + * \|/ | + * CheckJVMType | + * (removes -client, -server, etc.) | + * \|/ + * CreateExecutionEnvironment + * (removes -d32 and -d64, + * determines desired data model, + * sets up LD_LIBRARY_PATH, + * and exec's) + * | + * -------------------------------------------- + * | + * \|/ + * exec child 1 incoming argv ----------------- + * | | + * \|/ | + * CheckJVMType | + * (removes -client, -server, etc.) | + * | \|/ + * | CreateExecutionEnvironment + * | (verifies desired data model + * | is running and acceptable + * | LD_LIBRARY_PATH; + * | no-op in child) + * | + * \|/ + * TranslateDashJArgs... + * (Prepare to pass args to vm) + * | + * | + * | + * \|/ + * ParseArguments + * (ignores -d32 and -d64, + * processes version options, + * creates argument list for vm, + * etc.) + * + */ + +static char *SetExecname(char **argv); +static char * GetExecname(); +static jboolean GetJVMPath(const char *jrepath, const char *jvmtype, + char *jvmpath, jint jvmpathsize, char * arch); +static jboolean GetJREPath(char *path, jint pathsize, char * arch, jboolean speculative); + +const char * +GetArch() +{ + static char *arch = NULL; + static char buf[12]; + if (arch) { + return arch; + } + +#ifdef ARCH + strcpy(buf, ARCH); +#else + sysinfo(SI_ARCHITECTURE, buf, sizeof(buf)); +#endif + arch = buf; + return arch; +} + +void +CreateExecutionEnvironment(int *_argcp, + char ***_argvp, + char jrepath[], + jint so_jrepath, + char jvmpath[], + jint so_jvmpath, + char **original_argv) { + /* + * First, determine if we are running the desired data model. If we + * are running the desired data model, all the error messages + * associated with calling GetJREPath, ReadKnownVMs, etc. should be + * output. However, if we are not running the desired data model, + * some of the errors should be suppressed since it is more + * informative to issue an error message based on whether or not the + * os/processor combination has dual mode capabilities. + */ + + char *execname = NULL; + int original_argc = *_argcp; + jboolean jvmpathExists; + + /* Compute the name of the executable */ + execname = SetExecname(*_argvp); + +#ifndef GAMMA + /* Set the LD_LIBRARY_PATH environment variable, check data model + flags, and exec process, if needed */ + { + char *arch = (char *)GetArch(); /* like sparc or sparcv9 */ + char * jvmtype = NULL; + int argc = *_argcp; + char **argv = original_argv; + + char *runpath = NULL; /* existing effective LD_LIBRARY_PATH + setting */ + + int running = /* What data model is being ILP32 => + 32 bit vm; LP64 => 64 bit vm */ +#ifdef _LP64 + 64; +#else + 32; +#endif + + int wanted = running; /* What data mode is being + asked for? Current model is + fine unless another model + is asked for */ + + char* new_runpath = NULL; /* desired new LD_LIBRARY_PATH string */ + char* newpath = NULL; /* path on new LD_LIBRARY_PATH */ + char* lastslash = NULL; + + char** newenvp = NULL; /* current environment */ + + char** newargv = NULL; + int newargc = 0; +#ifdef __sun + char* dmpath = NULL; /* data model specific LD_LIBRARY_PATH, + Solaris only */ +#endif + + /* + * Starting in 1.5, all unix platforms accept the -d32 and -d64 + * options. On platforms where only one data-model is supported + * (e.g. ia-64 Linux), using the flag for the other data model is + * an error and will terminate the program. + */ + + { /* open new scope to declare local variables */ + int i; + + newargv = (char **)MemAlloc((argc+1) * sizeof(*newargv)); + newargv[newargc++] = argv[0]; + + /* scan for data model arguments and remove from argument list; + last occurrence determines desired data model */ + for (i=1; i < argc; i++) { + + if (strcmp(argv[i], "-J-d64") == 0 || strcmp(argv[i], "-d64") == 0) { + wanted = 64; + continue; + } + if (strcmp(argv[i], "-J-d32") == 0 || strcmp(argv[i], "-d32") == 0) { + wanted = 32; + continue; + } + newargv[newargc++] = argv[i]; + +#ifdef JAVA_ARGS + if (argv[i][0] != '-') + continue; +#else + if (strcmp(argv[i], "-classpath") == 0 || strcmp(argv[i], "-cp") == 0) { + i++; + if (i >= argc) break; + newargv[newargc++] = argv[i]; + continue; + } + if (argv[i][0] != '-') { i++; break; } +#endif + } + + /* copy rest of args [i .. argc) */ + while (i < argc) { + newargv[newargc++] = argv[i++]; + } + newargv[newargc] = NULL; + + /* + * newargv has all proper arguments here + */ + + argc = newargc; + argv = newargv; + } + + /* If the data model is not changing, it is an error if the + jvmpath does not exist */ + if (wanted == running) { + /* Find out where the JRE is that we will be using. */ + if (!GetJREPath(jrepath, so_jrepath, arch, JNI_FALSE) ) { + fprintf(stderr, "Error: could not find Java 2 Runtime Environment.\n"); + exit(2); + } + + /* Find the specified JVM type */ + if (ReadKnownVMs(jrepath, arch, JNI_FALSE) < 1) { + fprintf(stderr, "Error: no known VMs. (check for corrupt jvm.cfg file)\n"); + exit(1); + } + + jvmpath[0] = '\0'; + jvmtype = CheckJvmType(_argcp, _argvp, JNI_FALSE); + + if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, arch )) { + fprintf(stderr, "Error: no `%s' JVM at `%s'.\n", jvmtype, jvmpath); + exit(4); + } + } else { /* do the same speculatively or exit */ +#ifdef DUAL_MODE + if (running != wanted) { + /* Find out where the JRE is that we will be using. */ + if (!GetJREPath(jrepath, so_jrepath, ((wanted==64)?BIG_ARCH:SMALL_ARCH), JNI_TRUE)) { + goto EndDataModelSpeculate; + } + + /* + * Read in jvm.cfg for target data model and process vm + * selection options. + */ + if (ReadKnownVMs(jrepath, ((wanted==64)?BIG_ARCH:SMALL_ARCH), JNI_TRUE) < 1) { + goto EndDataModelSpeculate; + } + jvmpath[0] = '\0'; + jvmtype = CheckJvmType(_argcp, _argvp, JNI_TRUE); + /* exec child can do error checking on the existence of the path */ + jvmpathExists = GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, + ((wanted==64)?BIG_ARCH:SMALL_ARCH)); + + } + EndDataModelSpeculate: /* give up and let other code report error message */ + ; +#else + fprintf(stderr, "Running a %d-bit JVM is not supported on this platform.\n", wanted); + exit(1); +#endif + } + + /* + * We will set the LD_LIBRARY_PATH as follows: + * + * o $JVMPATH (directory portion only) + * o $JRE/lib/$ARCH + * o $JRE/../lib/$ARCH + * + * followed by the user's previous effective LD_LIBRARY_PATH, if + * any. + */ + +#ifdef __sun + /* + * Starting in Solaris 7, ld.so.1 supports three LD_LIBRARY_PATH + * variables: + * + * 1. LD_LIBRARY_PATH -- used for 32 and 64 bit searches if + * data-model specific variables are not set. + * + * 2. LD_LIBRARY_PATH_64 -- overrides and replaces LD_LIBRARY_PATH + * for 64-bit binaries. + * + * 3. LD_LIBRARY_PATH_32 -- overrides and replaces LD_LIBRARY_PATH + * for 32-bit binaries. + * + * The vm uses LD_LIBRARY_PATH to set the java.library.path system + * property. To shield the vm from the complication of multiple + * LD_LIBRARY_PATH variables, if the appropriate data model + * specific variable is set, we will act as if LD_LIBRARY_PATH had + * the value of the data model specific variant and the data model + * specific variant will be unset. Note that the variable for the + * *wanted* data model must be used (if it is set), not simply the + * current running data model. + */ + + switch(wanted) { + case 0: + if(running == 32) { + dmpath = getenv("LD_LIBRARY_PATH_32"); + wanted = 32; + } + else { + dmpath = getenv("LD_LIBRARY_PATH_64"); + wanted = 64; + } + break; + + case 32: + dmpath = getenv("LD_LIBRARY_PATH_32"); + break; + + case 64: + dmpath = getenv("LD_LIBRARY_PATH_64"); + break; + + default: + fprintf(stderr, "Improper value at line %d.", __LINE__); + exit(1); /* unknown value in wanted */ + break; + } + + /* + * If dmpath is NULL, the relevant data model specific variable is + * not set and normal LD_LIBRARY_PATH should be used. + */ + if( dmpath == NULL) { + runpath = getenv("LD_LIBRARY_PATH"); + } + else { + runpath = dmpath; + } +#else + /* + * If not on Solaris, assume only a single LD_LIBRARY_PATH + * variable. + */ + runpath = getenv("LD_LIBRARY_PATH"); +#endif /* __sun */ + +#ifdef __linux + /* + * On linux, if a binary is running as sgid or suid, glibc sets + * LD_LIBRARY_PATH to the empty string for security purposes. (In + * contrast, on Solaris the LD_LIBRARY_PATH variable for a + * privileged binary does not lose its settings; but the dynamic + * linker does apply more scrutiny to the path.) The launcher uses + * the value of LD_LIBRARY_PATH to prevent an exec loop. + * Therefore, if we are running sgid or suid, this function's + * setting of LD_LIBRARY_PATH will be ineffective and we should + * return from the function now. Getting the right libraries to + * be found must be handled through other mechanisms. + */ + if((getgid() != getegid()) || (getuid() != geteuid()) ) { + return; + } +#endif + + /* runpath contains current effective LD_LIBRARY_PATH setting */ + + jvmpath = strdup(jvmpath); + new_runpath = MemAlloc( ((runpath!=NULL)?strlen(runpath):0) + + 2*strlen(jrepath) + 2*strlen(arch) + + strlen(jvmpath) + 52); + newpath = new_runpath + strlen("LD_LIBRARY_PATH="); + + + /* + * Create desired LD_LIBRARY_PATH value for target data model. + */ + { + /* remove the name of the .so from the JVM path */ + lastslash = strrchr(jvmpath, '/'); + if (lastslash) + *lastslash = '\0'; + + + /* jvmpath, ((running != wanted)?((wanted==64)?"/"BIG_ARCH:"/.."):""), */ + + sprintf(new_runpath, "LD_LIBRARY_PATH=" + "%s:" + "%s/lib/%s:" + "%s/../lib/%s", + jvmpath, +#ifdef DUAL_MODE + jrepath, ((wanted==64)?BIG_ARCH:SMALL_ARCH), + jrepath, ((wanted==64)?BIG_ARCH:SMALL_ARCH) +#else + jrepath, arch, + jrepath, arch +#endif + ); + + + /* + * Check to make sure that the prefix of the current path is the + * desired environment variable setting. + */ + if (runpath != NULL && + strncmp(newpath, runpath, strlen(newpath))==0 && + (runpath[strlen(newpath)] == 0 || runpath[strlen(newpath)] == ':') && + (running == wanted) /* data model does not have to be changed */ +#ifdef __sun + && (dmpath == NULL) /* data model specific variables not set */ +#endif + ) { + + return; + + } + } + + /* + * Place the desired environment setting onto the prefix of + * LD_LIBRARY_PATH. Note that this prevents any possible infinite + * loop of execv() because we test for the prefix, above. + */ + if (runpath != 0) { + strcat(new_runpath, ":"); + strcat(new_runpath, runpath); + } + + if( putenv(new_runpath) != 0) { + exit(1); /* problem allocating memory; LD_LIBRARY_PATH not set + properly */ + } + + /* + * Unix systems document that they look at LD_LIBRARY_PATH only + * once at startup, so we have to re-exec the current executable + * to get the changed environment variable to have an effect. + */ + +#ifdef __sun + /* + * If dmpath is not NULL, remove the data model specific string + * in the environment for the exec'ed child. + */ + + if( dmpath != NULL) + (void)UnsetEnv((wanted==32)?"LD_LIBRARY_PATH_32":"LD_LIBRARY_PATH_64"); +#endif + + newenvp = environ; + + { + char *newexec = execname; +#ifdef DUAL_MODE + /* + * If the data model is being changed, the path to the + * executable must be updated accordingly; the executable name + * and directory the executable resides in are separate. In the + * case of 32 => 64, the new bits are assumed to reside in, e.g. + * "olddir/BIGARCH/execname"; in the case of 64 => 32, + * the bits are assumed to be in "olddir/../execname". For example, + * + * olddir/sparcv9/execname + * olddir/amd64/execname + * + * for Solaris SPARC and Linux amd64, respectively. + */ + + if (running != wanted) { + char *oldexec = strcpy(MemAlloc(strlen(execname) + 1), execname); + char *olddir = oldexec; + char *oldbase = strrchr(oldexec, '/'); + + + newexec = MemAlloc(strlen(execname) + 20); + *oldbase++ = 0; + sprintf(newexec, "%s/%s/%s", olddir, + ((wanted==64) ? BIG_ARCH : ".."), oldbase); + argv[0] = newexec; + } +#endif + + execve(newexec, argv, newenvp); + perror("execve()"); + + fprintf(stderr, "Error trying to exec %s.\n", newexec); + fprintf(stderr, "Check if file exists and permissions are set correctly.\n"); + +#ifdef DUAL_MODE + if (running != wanted) { + fprintf(stderr, "Failed to start a %d-bit JVM process from a %d-bit JVM.\n", + wanted, running); +# ifdef __sun + +# ifdef __sparc + fprintf(stderr, "Verify all necessary J2SE components have been installed.\n" ); + fprintf(stderr, + "(Solaris SPARC 64-bit components must be installed after 32-bit components.)\n" ); +# else + fprintf(stderr, "Either 64-bit processes are not supported by this platform\n"); + fprintf(stderr, "or the 64-bit components have not been installed.\n"); +# endif + } +# endif +#endif + + } + + exit(1); + } + +#else /* ifndef GAMMA */ + + /* gamma launcher is simpler in that it doesn't handle VM flavors, data */ + /* model, LD_LIBRARY_PATH, etc. Assuming everything is set-up correctly */ + /* all we need to do here is to return correct path names. See also */ + /* GetJVMPath() and GetApplicationHome(). */ + + { char *arch = (char *)GetArch(); /* like sparc or sparcv9 */ + char *p; + + if (!GetJREPath(jrepath, so_jrepath, arch, JNI_FALSE) ) { + fprintf(stderr, "Error: could not find Java 2 Runtime Environment.\n"); + exit(2); + } + + if (!GetJVMPath(jrepath, NULL, jvmpath, so_jvmpath, arch )) { + fprintf(stderr, "Error: no JVM at `%s'.\n", jvmpath); + exit(4); + } + } + +#endif /* ifndef GAMMA */ +} + + +/* + * On Solaris VM choosing is done by the launcher (java.c). + */ +static jboolean +GetJVMPath(const char *jrepath, const char *jvmtype, + char *jvmpath, jint jvmpathsize, char * arch) +{ + struct stat s; + +#ifndef GAMMA + if (strchr(jvmtype, '/')) { + sprintf(jvmpath, "%s/" JVM_DLL, jvmtype); + } else { + sprintf(jvmpath, "%s/lib/%s/%s/" JVM_DLL, jrepath, arch, jvmtype); + } +#else + /* For gamma launcher, JVM is either built-in or in the same directory. */ + /* Either way we return "<exe_path>/libjvm.so" where <exe_path> is the */ + /* directory where gamma launcher is located. */ + + char *p; + + snprintf(jvmpath, jvmpathsize, "%s", GetExecname()); + p = strrchr(jvmpath, '/'); + if (p) { + /* replace executable name with libjvm.so */ + snprintf(p + 1, jvmpathsize - (p + 1 - jvmpath), "%s", JVM_DLL); + } else { + /* this case shouldn't happen */ + snprintf(jvmpath, jvmpathsize, "%s", JVM_DLL); + } +#endif + + if (_launcher_debug) + printf("Does `%s' exist ... ", jvmpath); + + if (stat(jvmpath, &s) == 0) { + if (_launcher_debug) + printf("yes.\n"); + return JNI_TRUE; + } else { + if (_launcher_debug) + printf("no.\n"); + return JNI_FALSE; + } +} + +/* + * Find path to JRE based on .exe's location or registry settings. + */ +static jboolean +GetJREPath(char *path, jint pathsize, char * arch, jboolean speculative) +{ + char libjava[MAXPATHLEN]; + + if (GetApplicationHome(path, pathsize)) { + /* Is JRE co-located with the application? */ + sprintf(libjava, "%s/lib/%s/" JAVA_DLL, path, arch); + if (access(libjava, F_OK) == 0) { + goto found; + } + + /* Does the app ship a private JRE in <apphome>/jre directory? */ + sprintf(libjava, "%s/jre/lib/%s/" JAVA_DLL, path, arch); + if (access(libjava, F_OK) == 0) { + strcat(path, "/jre"); + goto found; + } + } + + if (!speculative) + fprintf(stderr, "Error: could not find " JAVA_DLL "\n"); + return JNI_FALSE; + + found: + if (_launcher_debug) + printf("JRE path is %s\n", path); + return JNI_TRUE; +} + +jboolean +LoadJavaVM(const char *jvmpath, InvocationFunctions *ifn) +{ +#ifdef GAMMA + /* JVM is directly linked with gamma launcher; no dlopen() */ + ifn->CreateJavaVM = JNI_CreateJavaVM; + ifn->GetDefaultJavaVMInitArgs = JNI_GetDefaultJavaVMInitArgs; + return JNI_TRUE; +#else + Dl_info dlinfo; + void *libjvm; + + if (_launcher_debug) { + printf("JVM path is %s\n", jvmpath); + } + + libjvm = dlopen(jvmpath, RTLD_NOW + RTLD_GLOBAL); + if (libjvm == NULL) { +#if defined(__sparc) && !defined(_LP64) /* i.e. 32-bit sparc */ + FILE * fp; + Elf32_Ehdr elf_head; + int count; + int location; + + fp = fopen(jvmpath, "r"); + if(fp == NULL) + goto error; + + /* read in elf header */ + count = fread((void*)(&elf_head), sizeof(Elf32_Ehdr), 1, fp); + fclose(fp); + if(count < 1) + goto error; + + /* + * Check for running a server vm (compiled with -xarch=v8plus) + * on a stock v8 processor. In this case, the machine type in + * the elf header would not be included the architecture list + * provided by the isalist command, which is turn is gotten from + * sysinfo. This case cannot occur on 64-bit hardware and thus + * does not have to be checked for in binaries with an LP64 data + * model. + */ + if(elf_head.e_machine == EM_SPARC32PLUS) { + char buf[257]; /* recommended buffer size from sysinfo man + page */ + long length; + char* location; + + length = sysinfo(SI_ISALIST, buf, 257); + if(length > 0) { + location = strstr(buf, "sparcv8plus "); + if(location == NULL) { + fprintf(stderr, "SPARC V8 processor detected; Server compiler requires V9 or better.\n"); + fprintf(stderr, "Use Client compiler on V8 processors.\n"); + fprintf(stderr, "Could not create the Java virtual machine.\n"); + return JNI_FALSE; + } + } + } +#endif + fprintf(stderr, "dl failure on line %d", __LINE__); + goto error; + } + + ifn->CreateJavaVM = (CreateJavaVM_t) + dlsym(libjvm, "JNI_CreateJavaVM"); + if (ifn->CreateJavaVM == NULL) + goto error; + + ifn->GetDefaultJavaVMInitArgs = (GetDefaultJavaVMInitArgs_t) + dlsym(libjvm, "JNI_GetDefaultJavaVMInitArgs"); + if (ifn->GetDefaultJavaVMInitArgs == NULL) + goto error; + + return JNI_TRUE; + +error: + fprintf(stderr, "Error: failed %s, because %s\n", jvmpath, dlerror()); + return JNI_FALSE; +#endif /* GAMMA */ +} + +/* + * Get the path to the file that has the usage message for -X options. + */ +void +GetXUsagePath(char *buf, jint bufsize) +{ + static const char Xusage_txt[] = "/Xusage.txt"; + Dl_info dlinfo; + + /* we use RTLD_NOW because of problems with ld.so.1 and green threads */ + dladdr(dlsym(dlopen(JVM_DLL, RTLD_NOW), "JNI_CreateJavaVM"), &dlinfo); + strncpy(buf, (char *)dlinfo.dli_fname, bufsize - sizeof(Xusage_txt)); + + buf[bufsize-1] = '\0'; + strcpy(strrchr(buf, '/'), Xusage_txt); +} + +/* + * If app is "/foo/bin/javac", or "/foo/bin/sparcv9/javac" then put + * "/foo" into buf. + */ +jboolean +GetApplicationHome(char *buf, jint bufsize) +{ +#ifdef __linux__ + char *execname = GetExecname(); + if (execname) { + strncpy(buf, execname, bufsize-1); + buf[bufsize-1] = '\0'; + } else { + return JNI_FALSE; + } +#else + Dl_info dlinfo; + + dladdr((void *)GetApplicationHome, &dlinfo); + if (realpath(dlinfo.dli_fname, buf) == NULL) { + fprintf(stderr, "Error: realpath(`%s') failed.\n", dlinfo.dli_fname); + return JNI_FALSE; + } +#endif + +#ifdef GAMMA + { + /* gamma launcher uses JAVA_HOME environment variable to find JDK/JRE */ + char* java_home_var = getenv("JAVA_HOME"); + if (java_home_var == NULL) { + printf("JAVA_HOME must point to a valid JDK/JRE to run gamma\n"); + return JNI_FALSE; + } + snprintf(buf, bufsize, "%s", java_home_var); + } +#else + if (strrchr(buf, '/') == 0) { + buf[0] = '\0'; + return JNI_FALSE; + } + *(strrchr(buf, '/')) = '\0'; /* executable file */ + if (strlen(buf) < 4 || strrchr(buf, '/') == 0) { + buf[0] = '\0'; + return JNI_FALSE; + } + if (strcmp("/bin", buf + strlen(buf) - 4) != 0) + *(strrchr(buf, '/')) = '\0'; /* sparcv9 or amd64 */ + if (strlen(buf) < 4 || strcmp("/bin", buf + strlen(buf) - 4) != 0) { + buf[0] = '\0'; + return JNI_FALSE; + } + *(strrchr(buf, '/')) = '\0'; /* bin */ +#endif /* GAMMA */ + + return JNI_TRUE; +} + + +/* + * Return true if the named program exists + */ +static int +ProgramExists(char *name) +{ + struct stat sb; + if (stat(name, &sb) != 0) return 0; + if (S_ISDIR(sb.st_mode)) return 0; + return (sb.st_mode & S_IEXEC) != 0; +} + + +/* + * Find a command in a directory, returning the path. + */ +static char * +Resolve(char *indir, char *cmd) +{ + char name[PATH_MAX + 2], *real; + + if ((strlen(indir) + strlen(cmd) + 1) > PATH_MAX) return 0; + sprintf(name, "%s%c%s", indir, FILE_SEPARATOR, cmd); + if (!ProgramExists(name)) return 0; + real = MemAlloc(PATH_MAX + 2); + if (!realpath(name, real)) + strcpy(real, name); + return real; +} + + +/* + * Find a path for the executable + */ +static char * +FindExecName(char *program) +{ + char cwdbuf[PATH_MAX+2]; + char *path; + char *tmp_path; + char *f; + char *result = NULL; + + /* absolute path? */ + if (*program == FILE_SEPARATOR || + (FILE_SEPARATOR=='\\' && strrchr(program, ':'))) + return Resolve("", program+1); + + /* relative path? */ + if (strrchr(program, FILE_SEPARATOR) != 0) { + char buf[PATH_MAX+2]; + return Resolve(getcwd(cwdbuf, sizeof(cwdbuf)), program); + } + + /* from search path? */ + path = getenv("PATH"); + if (!path || !*path) path = "."; + tmp_path = MemAlloc(strlen(path) + 2); + strcpy(tmp_path, path); + + for (f=tmp_path; *f && result==0; ) { + char *s = f; + while (*f && (*f != PATH_SEPARATOR)) ++f; + if (*f) *f++ = 0; + if (*s == FILE_SEPARATOR) + result = Resolve(s, program); + else { + /* relative path element */ + char dir[2*PATH_MAX]; + sprintf(dir, "%s%c%s", getcwd(cwdbuf, sizeof(cwdbuf)), + FILE_SEPARATOR, s); + result = Resolve(dir, program); + } + if (result != 0) break; + } + + free(tmp_path); + return result; +} + + +/* Store the name of the executable once computed */ +static char *execname = NULL; + +/* + * Compute the name of the executable + * + * In order to re-exec securely we need the absolute path of the + * executable. On Solaris getexecname(3c) may not return an absolute + * path so we use dladdr to get the filename of the executable and + * then use realpath to derive an absolute path. From Solaris 9 + * onwards the filename returned in DL_info structure from dladdr is + * an absolute pathname so technically realpath isn't required. + * On Linux we read the executable name from /proc/self/exe. + * As a fallback, and for platforms other than Solaris and Linux, + * we use FindExecName to compute the executable name. + */ +static char * +SetExecname(char **argv) +{ + char* exec_path = NULL; + + if (execname != NULL) /* Already determined */ + return (execname); + +#if defined(__sun) + { + Dl_info dlinfo; + if (dladdr((void*)&SetExecname, &dlinfo)) { + char *resolved = (char*)MemAlloc(PATH_MAX+1); + if (resolved != NULL) { + exec_path = realpath(dlinfo.dli_fname, resolved); + if (exec_path == NULL) { + free(resolved); + } + } + } + } +#elif defined(__linux__) + { + const char* self = "/proc/self/exe"; + char buf[PATH_MAX+1]; + int len = readlink(self, buf, PATH_MAX); + if (len >= 0) { + buf[len] = '\0'; /* readlink doesn't nul terminate */ + exec_path = strdup(buf); + } + } +#else /* !__sun && !__linux */ + { + /* Not implemented */ + } +#endif + + if (exec_path == NULL) { + exec_path = FindExecName(argv[0]); + } + execname = exec_path; + return exec_path; +} + +/* + * Return the name of the executable. Used in java_md.c to find the JRE area. + */ +static char * +GetExecname() { + return execname; +} + +void ReportErrorMessage(char * message, jboolean always) { + if (always) { + fprintf(stderr, "%s\n", message); + } +} + +void ReportErrorMessage2(char * format, char * string, jboolean always) { + if (always) { + fprintf(stderr, format, string); + fprintf(stderr, "\n"); + } +} + +void ReportExceptionDescription(JNIEnv * env) { + (*env)->ExceptionDescribe(env); +} + +/* + * Return JNI_TRUE for an option string that has no effect but should + * _not_ be passed on to the vm; return JNI_FALSE otherwise. On + * Solaris SPARC, this screening needs to be done if: + * 1) LD_LIBRARY_PATH does _not_ need to be reset and + * 2) -d32 or -d64 is passed to a binary with a matching data model + * (the exec in SetLibraryPath removes -d<n> options and points the + * exec to the proper binary). When this exec is not done, these options + * would end up getting passed onto the vm. + */ +jboolean RemovableMachineDependentOption(char * option) { + /* + * Unconditionally remove both -d32 and -d64 options since only + * the last such options has an effect; e.g. + * java -d32 -d64 -d32 -version + * is equivalent to + * java -d32 -version + */ + + if( (strcmp(option, "-d32") == 0 ) || + (strcmp(option, "-d64") == 0 )) + return JNI_TRUE; + else + return JNI_FALSE; +} + +void PrintMachineDependentOptions() { + fprintf(stdout, + " -d32 use a 32-bit data model if available\n" + "\n" + " -d64 use a 64-bit data model if available\n"); + return; +} + +#ifndef GAMMA /* gamma launcher does not have ergonomics */ + +/* + * The following methods (down to ServerClassMachine()) answer + * the question about whether a machine is a "server-class" + * machine. A server-class machine is loosely defined as one + * with 2 or more processors and 2 gigabytes or more physical + * memory. The definition of a processor is a physical package, + * not a hyperthreaded chip masquerading as a multi-processor. + * The definition of memory is also somewhat fuzzy, since x86 + * machines seem not to report all the memory in their DIMMs, we + * think because of memory mapping of graphics cards, etc. + * + * This code is somewhat more confused with #ifdef's than we'd + * like because this file is used by both Solaris and Linux + * platforms, and so needs to be parameterized for SPARC and + * i586 hardware. The other Linux platforms (amd64 and ia64) + * don't even ask this question, because they only come with + * server JVMs. */ + +# define KB (1024UL) +# define MB (1024UL * KB) +# define GB (1024UL * MB) + +/* Compute physical memory by asking the OS */ +uint64_t +physical_memory(void) { + const uint64_t pages = (uint64_t) sysconf(_SC_PHYS_PAGES); + const uint64_t page_size = (uint64_t) sysconf(_SC_PAGESIZE); + const uint64_t result = pages * page_size; +# define UINT64_FORMAT "%" PRIu64 + + if (_launcher_debug) { + printf("pages: " UINT64_FORMAT + " page_size: " UINT64_FORMAT + " physical memory: " UINT64_FORMAT " (%.3fGB)\n", + pages, page_size, result, result / (double) GB); + } + return result; +} + +#if defined(__sun) && defined(__sparc) + +/* Methods for solaris-sparc: these are easy. */ + +/* Ask the OS how many processors there are. */ +unsigned long +physical_processors(void) { + const unsigned long sys_processors = sysconf(_SC_NPROCESSORS_CONF); + + if (_launcher_debug) { + printf("sysconf(_SC_NPROCESSORS_CONF): %lu\n", sys_processors); + } + return sys_processors; +} + +/* The solaris-sparc version of the "server-class" predicate. */ +jboolean +solaris_sparc_ServerClassMachine(void) { + jboolean result = JNI_FALSE; + /* How big is a server class machine? */ + const unsigned long server_processors = 2UL; + const uint64_t server_memory = 2UL * GB; + const uint64_t actual_memory = physical_memory(); + + /* Is this a server class machine? */ + if (actual_memory >= server_memory) { + const unsigned long actual_processors = physical_processors(); + if (actual_processors >= server_processors) { + result = JNI_TRUE; + } + } + if (_launcher_debug) { + printf("solaris_" ARCH "_ServerClassMachine: %s\n", + (result == JNI_TRUE ? "JNI_TRUE" : "JNI_FALSE")); + } + return result; +} + +#endif /* __sun && __sparc */ + +#if defined(__sun) && defined(i586) + +/* + * A utility method for asking the CPU about itself. + * There's a corresponding version of linux-i586 + * because the compilers are different. + */ +void +get_cpuid(uint32_t arg, + uint32_t* eaxp, + uint32_t* ebxp, + uint32_t* ecxp, + uint32_t* edxp) { +#ifdef _LP64 + asm( + /* rbx is a callee-saved register */ + " movq %rbx, %r11 \n" + /* rdx and rcx are 3rd and 4th argument registers */ + " movq %rdx, %r10 \n" + " movq %rcx, %r9 \n" + " movl %edi, %eax \n" + " cpuid \n" + " movl %eax, (%rsi)\n" + " movl %ebx, (%r10)\n" + " movl %ecx, (%r9) \n" + " movl %edx, (%r8) \n" + /* Restore rbx */ + " movq %r11, %rbx"); +#else + /* EBX is a callee-saved register */ + asm(" pushl %ebx"); + /* Need ESI for storing through arguments */ + asm(" pushl %esi"); + asm(" movl 8(%ebp), %eax \n" + " cpuid \n" + " movl 12(%ebp), %esi \n" + " movl %eax, (%esi) \n" + " movl 16(%ebp), %esi \n" + " movl %ebx, (%esi) \n" + " movl 20(%ebp), %esi \n" + " movl %ecx, (%esi) \n" + " movl 24(%ebp), %esi \n" + " movl %edx, (%esi) "); + /* Restore ESI and EBX */ + asm(" popl %esi"); + /* Restore EBX */ + asm(" popl %ebx"); +#endif +} + +#endif /* __sun && i586 */ + +#if defined(__linux__) && defined(i586) + +/* + * A utility method for asking the CPU about itself. + * There's a corresponding version of solaris-i586 + * because the compilers are different. + */ +void +get_cpuid(uint32_t arg, + uint32_t* eaxp, + uint32_t* ebxp, + uint32_t* ecxp, + uint32_t* edxp) { +#ifdef _LP64 + __asm__ volatile (/* Instructions */ + " movl %4, %%eax \n" + " cpuid \n" + " movl %%eax, (%0)\n" + " movl %%ebx, (%1)\n" + " movl %%ecx, (%2)\n" + " movl %%edx, (%3)\n" + : /* Outputs */ + : /* Inputs */ + "r" (eaxp), + "r" (ebxp), + "r" (ecxp), + "r" (edxp), + "r" (arg) + : /* Clobbers */ + "%rax", "%rbx", "%rcx", "%rdx", "memory" + ); +#else + uint32_t value_of_eax = 0; + uint32_t value_of_ebx = 0; + uint32_t value_of_ecx = 0; + uint32_t value_of_edx = 0; + __asm__ volatile (/* Instructions */ + /* ebx is callee-save, so push it */ + /* even though it's in the clobbers section */ + " pushl %%ebx \n" + " movl %4, %%eax \n" + " cpuid \n" + " movl %%eax, %0 \n" + " movl %%ebx, %1 \n" + " movl %%ecx, %2 \n" + " movl %%edx, %3 \n" + /* restore ebx */ + " popl %%ebx \n" + + : /* Outputs */ + "=m" (value_of_eax), + "=m" (value_of_ebx), + "=m" (value_of_ecx), + "=m" (value_of_edx) + : /* Inputs */ + "m" (arg) + : /* Clobbers */ + "%eax", "%ebx", "%ecx", "%edx" + ); + *eaxp = value_of_eax; + *ebxp = value_of_ebx; + *ecxp = value_of_ecx; + *edxp = value_of_edx; +#endif +} + +#endif /* __linux__ && i586 */ + +#ifdef i586 +/* + * Routines shared by solaris-i586 and linux-i586. + */ + +enum HyperThreadingSupport_enum { + hts_supported = 1, + hts_too_soon_to_tell = 0, + hts_not_supported = -1, + hts_not_pentium4 = -2, + hts_not_intel = -3 +}; +typedef enum HyperThreadingSupport_enum HyperThreadingSupport; + +/* Determine if hyperthreading is supported */ +HyperThreadingSupport +hyperthreading_support(void) { + HyperThreadingSupport result = hts_too_soon_to_tell; + /* Bits 11 through 8 is family processor id */ +# define FAMILY_ID_SHIFT 8 +# define FAMILY_ID_MASK 0xf + /* Bits 23 through 20 is extended family processor id */ +# define EXT_FAMILY_ID_SHIFT 20 +# define EXT_FAMILY_ID_MASK 0xf + /* Pentium 4 family processor id */ +# define PENTIUM4_FAMILY_ID 0xf + /* Bit 28 indicates Hyper-Threading Technology support */ +# define HT_BIT_SHIFT 28 +# define HT_BIT_MASK 1 + uint32_t vendor_id[3] = { 0U, 0U, 0U }; + uint32_t value_of_eax = 0U; + uint32_t value_of_edx = 0U; + uint32_t dummy = 0U; + + /* Yes, this is supposed to be [0], [2], [1] */ + get_cpuid(0, &dummy, &vendor_id[0], &vendor_id[2], &vendor_id[1]); + if (_launcher_debug) { + printf("vendor: %c %c %c %c %c %c %c %c %c %c %c %c \n", + ((vendor_id[0] >> 0) & 0xff), + ((vendor_id[0] >> 8) & 0xff), + ((vendor_id[0] >> 16) & 0xff), + ((vendor_id[0] >> 24) & 0xff), + ((vendor_id[1] >> 0) & 0xff), + ((vendor_id[1] >> 8) & 0xff), + ((vendor_id[1] >> 16) & 0xff), + ((vendor_id[1] >> 24) & 0xff), + ((vendor_id[2] >> 0) & 0xff), + ((vendor_id[2] >> 8) & 0xff), + ((vendor_id[2] >> 16) & 0xff), + ((vendor_id[2] >> 24) & 0xff)); + } + get_cpuid(1, &value_of_eax, &dummy, &dummy, &value_of_edx); + if (_launcher_debug) { + printf("value_of_eax: 0x%x value_of_edx: 0x%x\n", + value_of_eax, value_of_edx); + } + if ((((value_of_eax >> FAMILY_ID_SHIFT) & FAMILY_ID_MASK) == PENTIUM4_FAMILY_ID) || + (((value_of_eax >> EXT_FAMILY_ID_SHIFT) & EXT_FAMILY_ID_MASK) != 0)) { + if ((((vendor_id[0] >> 0) & 0xff) == 'G') && + (((vendor_id[0] >> 8) & 0xff) == 'e') && + (((vendor_id[0] >> 16) & 0xff) == 'n') && + (((vendor_id[0] >> 24) & 0xff) == 'u') && + (((vendor_id[1] >> 0) & 0xff) == 'i') && + (((vendor_id[1] >> 8) & 0xff) == 'n') && + (((vendor_id[1] >> 16) & 0xff) == 'e') && + (((vendor_id[1] >> 24) & 0xff) == 'I') && + (((vendor_id[2] >> 0) & 0xff) == 'n') && + (((vendor_id[2] >> 8) & 0xff) == 't') && + (((vendor_id[2] >> 16) & 0xff) == 'e') && + (((vendor_id[2] >> 24) & 0xff) == 'l')) { + if (((value_of_edx >> HT_BIT_SHIFT) & HT_BIT_MASK) == HT_BIT_MASK) { + if (_launcher_debug) { + printf("Hyperthreading supported\n"); + } + result = hts_supported; + } else { + if (_launcher_debug) { + printf("Hyperthreading not supported\n"); + } + result = hts_not_supported; + } + } else { + if (_launcher_debug) { + printf("Not GenuineIntel\n"); + } + result = hts_not_intel; + } + } else { + if (_launcher_debug) { + printf("not Pentium 4 or extended\n"); + } + result = hts_not_pentium4; + } + return result; +} + +/* Determine how many logical processors there are per CPU */ +unsigned int +logical_processors_per_package(void) { + /* + * After CPUID with EAX==1, register EBX bits 23 through 16 + * indicate the number of logical processors per package + */ +# define NUM_LOGICAL_SHIFT 16 +# define NUM_LOGICAL_MASK 0xff + unsigned int result = 1U; + const HyperThreadingSupport hyperthreading = hyperthreading_support(); + + if (hyperthreading == hts_supported) { + uint32_t value_of_ebx = 0U; + uint32_t dummy = 0U; + + get_cpuid(1, &dummy, &value_of_ebx, &dummy, &dummy); + result = (value_of_ebx >> NUM_LOGICAL_SHIFT) & NUM_LOGICAL_MASK; + if (_launcher_debug) { + printf("logical processors per package: %u\n", result); + } + } + return result; +} + +/* Compute the number of physical processors, not logical processors */ +unsigned long +physical_processors(void) { + const long sys_processors = sysconf(_SC_NPROCESSORS_CONF); + unsigned long result = sys_processors; + + if (_launcher_debug) { + printf("sysconf(_SC_NPROCESSORS_CONF): %lu\n", sys_processors); + } + if (sys_processors > 1) { + unsigned int logical_processors = logical_processors_per_package(); + if (logical_processors > 1) { + result = (unsigned long) sys_processors / logical_processors; + } + } + if (_launcher_debug) { + printf("physical processors: %lu\n", result); + } + return result; +} + +#endif /* i586 */ + +#if defined(__sun) && defined(i586) + +/* The definition of a server-class machine for solaris-i586/amd64 */ +jboolean +solaris_i586_ServerClassMachine(void) { + jboolean result = JNI_FALSE; + /* How big is a server class machine? */ + const unsigned long server_processors = 2UL; + const uint64_t server_memory = 2UL * GB; + /* + * We seem not to get our full complement of memory. + * We allow some part (1/8?) of the memory to be "missing", + * based on the sizes of DIMMs, and maybe graphics cards. + */ + const uint64_t missing_memory = 256UL * MB; + const uint64_t actual_memory = physical_memory(); + + /* Is this a server class machine? */ + if (actual_memory >= (server_memory - missing_memory)) { + const unsigned long actual_processors = physical_processors(); + if (actual_processors >= server_processors) { + result = JNI_TRUE; + } + } + if (_launcher_debug) { + printf("solaris_" ARCH "_ServerClassMachine: %s\n", + (result == JNI_TRUE ? "true" : "false")); + } + return result; +} + +#endif /* __sun && i586 */ + +#if defined(__linux__) && defined(i586) + +/* The definition of a server-class machine for linux-i586 */ +jboolean +linux_i586_ServerClassMachine(void) { + jboolean result = JNI_FALSE; + /* How big is a server class machine? */ + const unsigned long server_processors = 2UL; + const uint64_t server_memory = 2UL * GB; + /* + * We seem not to get our full complement of memory. + * We allow some part (1/8?) of the memory to be "missing", + * based on the sizes of DIMMs, and maybe graphics cards. + */ + const uint64_t missing_memory = 256UL * MB; + const uint64_t actual_memory = physical_memory(); + + /* Is this a server class machine? */ + if (actual_memory >= (server_memory - missing_memory)) { + const unsigned long actual_processors = physical_processors(); + if (actual_processors >= server_processors) { + result = JNI_TRUE; + } + } + if (_launcher_debug) { + printf("linux_" ARCH "_ServerClassMachine: %s\n", + (result == JNI_TRUE ? "true" : "false")); + } + return result; +} + +#endif /* __linux__ && i586 */ + +/* Dispatch to the platform-specific definition of "server-class" */ +jboolean +ServerClassMachine(void) { + jboolean result = JNI_FALSE; +#if defined(__sun) && defined(__sparc) + result = solaris_sparc_ServerClassMachine(); +#elif defined(__sun) && defined(i586) + result = solaris_i586_ServerClassMachine(); +#elif defined(__linux__) && defined(i586) + result = linux_i586_ServerClassMachine(); +#else + if (_launcher_debug) { + printf("ServerClassMachine: returns default value of %s\n", + (result == JNI_TRUE ? "true" : "false")); + } +#endif + return result; +} + +#endif /* ifndef GAMMA */ + +#ifndef GAMMA /* gamma launcher does not choose JDK/JRE/JVM */ + +/* + * Since using the file system as a registry is a bit risky, perform + * additional sanity checks on the identified directory to validate + * it as a valid jre/sdk. + * + * Return 0 if the tests fail; otherwise return non-zero (true). + * + * Note that checking for anything more than the existence of an + * executable object at bin/java relative to the path being checked + * will break the regression tests. + */ +static int +CheckSanity(char *path, char *dir) +{ + char buffer[PATH_MAX]; + + if (strlen(path) + strlen(dir) + 11 > PATH_MAX) + return (0); /* Silently reject "impossibly" long paths */ + + (void)strcat(strcat(strcat(strcpy(buffer, path), "/"), dir), "/bin/java"); + return ((access(buffer, X_OK) == 0) ? 1 : 0); +} + +/* + * Determine if there is an acceptable JRE in the directory dirname. + * Upon locating the "best" one, return a fully qualified path to + * it. "Best" is defined as the most advanced JRE meeting the + * constraints contained in the manifest_info. If no JRE in this + * directory meets the constraints, return NULL. + * + * Note that we don't check for errors in reading the directory + * (which would be done by checking errno). This is because it + * doesn't matter if we get an error reading the directory, or + * we just don't find anything interesting in the directory. We + * just return NULL in either case. + * + * The historical names of j2sdk and j2re were changed to jdk and + * jre respecively as part of the 1.5 rebranding effort. Since the + * former names are legacy on Linux, they must be recognized for + * all time. Fortunately, this is a minor cost. + */ +static char +*ProcessDir(manifest_info *info, char *dirname) +{ + DIR *dirp; + struct dirent *dp; + char *best = NULL; + int offset; + int best_offset = 0; + char *ret_str = NULL; + char buffer[PATH_MAX]; + + if ((dirp = opendir(dirname)) == NULL) + return (NULL); + + do { + if ((dp = readdir(dirp)) != NULL) { + offset = 0; + if ((strncmp(dp->d_name, "jre", 3) == 0) || + (strncmp(dp->d_name, "jdk", 3) == 0)) + offset = 3; + else if (strncmp(dp->d_name, "j2re", 4) == 0) + offset = 4; + else if (strncmp(dp->d_name, "j2sdk", 5) == 0) + offset = 5; + if (offset > 0) { + if ((acceptable_release(dp->d_name + offset, + info->jre_version)) && CheckSanity(dirname, dp->d_name)) + if ((best == NULL) || (exact_version_id( + dp->d_name + offset, best + best_offset) > 0)) { + if (best != NULL) + free(best); + best = strdup(dp->d_name); + best_offset = offset; + } + } + } + } while (dp != NULL); + (void) closedir(dirp); + if (best == NULL) + return (NULL); + else { + ret_str = MemAlloc(strlen(dirname) + strlen(best) + 2); + ret_str = strcat(strcat(strcpy(ret_str, dirname), "/"), best); + free(best); + return (ret_str); + } +} + +/* + * This is the global entry point. It examines the host for the optimal + * JRE to be used by scanning a set of directories. The set of directories + * is platform dependent and can be overridden by the environment + * variable JAVA_VERSION_PATH. + * + * This routine itself simply determines the set of appropriate + * directories before passing control onto ProcessDir(). + */ +char* +LocateJRE(manifest_info* info) +{ + char *path; + char *home; + char *target = NULL; + char *dp; + char *cp; + + /* + * Start by getting JAVA_VERSION_PATH + */ + if (info->jre_restrict_search) + path = strdup(system_dir); + else if ((path = getenv("JAVA_VERSION_PATH")) != NULL) + path = strdup(path); + else + if ((home = getenv("HOME")) != NULL) { + path = (char *)MemAlloc(strlen(home) + 13); + path = strcat(strcat(strcat(strcpy(path, home), + user_dir), ":"), system_dir); + } else + path = strdup(system_dir); + + /* + * Step through each directory on the path. Terminate the scan with + * the first directory with an acceptable JRE. + */ + cp = dp = path; + while (dp != NULL) { + cp = strchr(dp, (int)':'); + if (cp != NULL) + *cp = (char)NULL; + if ((target = ProcessDir(info, dp)) != NULL) + break; + dp = cp; + if (dp != NULL) + dp++; + } + free(path); + return (target); +} + +/* + * Given a path to a jre to execute, this routine checks if this process + * is indeed that jre. If not, it exec's that jre. + * + * We want to actually check the paths rather than just the version string + * built into the executable, so that given version specification (and + * JAVA_VERSION_PATH) will yield the exact same Java environment, regardless + * of the version of the arbitrary launcher we start with. + */ +void +ExecJRE(char *jre, char **argv) +{ + char wanted[PATH_MAX]; + char *execname; + char *progname; + + /* + * Resolve the real path to the directory containing the selected JRE. + */ + if (realpath(jre, wanted) == NULL) { + fprintf(stderr, "Unable to resolve %s\n", jre); + exit(1); + } + + /* + * Resolve the real path to the currently running launcher. + */ + execname = SetExecname(argv); + if (execname == NULL) { + fprintf(stderr, "Unable to resolve current executable\n"); + exit(1); + } + + /* + * If the path to the selected JRE directory is a match to the initial + * portion of the path to the currently executing JRE, we have a winner! + * If so, just return. + */ + if (strncmp(wanted, execname, strlen(wanted)) == 0) + return; /* I am the droid you were looking for */ + + /* + * If this isn't the selected version, exec the selected version. + */ +#ifdef JAVA_ARGS /* javac, jar and friends. */ + progname = "java"; +#else /* java, oldjava, javaw and friends */ +#ifdef PROGNAME + progname = PROGNAME; +#else + progname = *argv; + if ((s = strrchr(progname, FILE_SEPARATOR)) != 0) { + progname = s + 1; + } +#endif /* PROGNAME */ +#endif /* JAVA_ARGS */ + + /* + * This should never happen (because of the selection code in SelectJRE), + * but check for "impossibly" long path names just because buffer overruns + * can be so deadly. + */ + if (strlen(wanted) + strlen(progname) + 6 > PATH_MAX) { + fprintf(stderr, "Path length exceeds maximum length (PATH_MAX)\n"); + exit(1); + } + + /* + * Construct the path and exec it. + */ + (void)strcat(strcat(wanted, "/bin/"), progname); + argv[0] = progname; + if (_launcher_debug) { + int i; + printf("execv(\"%s\"", wanted); + for (i = 0; argv[i] != NULL; i++) + printf(", \"%s\"", argv[i]); + printf(")\n"); + } + execv(wanted, argv); + fprintf(stderr, "Exec of %s failed\n", wanted); + exit(1); +} + +#endif /* ifndef GAMMA */ + +/* + * "Borrowed" from Solaris 10 where the unsetenv() function is being added + * to libc thanks to SUSv3 (Standard Unix Specification, version 3). As + * such, in the fullness of time this will appear in libc on all relevant + * Solaris/Linux platforms and maybe even the Windows platform. At that + * time, this stub can be removed. + * + * This implementation removes the environment locking for multithreaded + * applications. (We don't have access to these mutexes within libc and + * the launcher isn't multithreaded.) Note that what remains is platform + * independent, because it only relies on attributes that a POSIX environment + * defines. + * + * Returns 0 on success, -1 on failure. + * + * Also removed was the setting of errno. The only value of errno set + * was EINVAL ("Invalid Argument"). + */ + +/* + * s1(environ) is name=value + * s2(name) is name(not the form of name=value). + * if names match, return value of 1, else return 0 + */ +static int +match_noeq(const char *s1, const char *s2) +{ + while (*s1 == *s2++) { + if (*s1++ == '=') + return (1); + } + if (*s1 == '=' && s2[-1] == '\0') + return (1); + return (0); +} + +/* + * added for SUSv3 standard + * + * Delete entry from environ. + * Do not free() memory! Other threads may be using it. + * Keep it around forever. + */ +static int +borrowed_unsetenv(const char *name) +{ + long idx; /* index into environ */ + + if (name == NULL || *name == '\0' || + strchr(name, '=') != NULL) { + return (-1); + } + + for (idx = 0; environ[idx] != NULL; idx++) { + if (match_noeq(environ[idx], name)) + break; + } + if (environ[idx] == NULL) { + /* name not found but still a success */ + return (0); + } + /* squeeze up one entry */ + do { + environ[idx] = environ[idx+1]; + } while (environ[++idx] != NULL); + + return (0); +} +/* --- End of "borrowed" code --- */ + +/* + * Wrapper for unsetenv() function. + */ +int +UnsetEnv(char *name) +{ + return(borrowed_unsetenv(name)); +} +/* + * The implementation for finding classes from the bootstrap + * class loader, refer to java.h + */ +static FindClassFromBootLoader_t *findBootClass = NULL; + +jclass +FindBootStrapClass(JNIEnv *env, const char* classname) +{ + if (findBootClass == NULL) { + findBootClass = (FindClassFromBootLoader_t *)dlsym(RTLD_DEFAULT, + "JVM_FindClassFromBootLoader"); + if (findBootClass == NULL) { + fprintf(stderr, "Error: could load method JVM_FindClassFromBootLoader"); + return NULL; + } + } + return findBootClass(env, classname, JNI_FALSE); +} +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/os/haiku/launcher/java_md.h Fri Oct 23 10:48:33 2009 -0700 @@ -0,0 +1,79 @@ +/* + * Copyright 1999-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +/* + * Gamma (Hotspot internal engineering test) launcher based on 1.6.0-b28 JDK, + * search "GAMMA" for gamma specific changes. + */ + +#ifndef JAVA_MD_H +#define JAVA_MD_H + +#include <limits.h> +#include <unistd.h> +#include <sys/param.h> +#ifndef GAMMA +#include "manifest_info.h" +#endif + +#define PATH_SEPARATOR ':' +#define FILESEP "/" +#define FILE_SEPARATOR '/' +#ifndef MAXNAMELEN +#define MAXNAMELEN PATH_MAX +#endif + +#ifdef JAVA_ARGS +/* + * ApplicationHome is prepended to each of these entries; the resulting + * strings are concatenated (separated by PATH_SEPARATOR) and used as the + * value of -cp option to the launcher. + */ +#ifndef APP_CLASSPATH +#define APP_CLASSPATH { "/lib/tools.jar", "/classes" } +#endif +#endif + +#ifdef HAVE_GETHRTIME +/* + * Support for doing cheap, accurate interval timing. + */ +#include <sys/time.h> +#define CounterGet() (gethrtime()/1000) +#define Counter2Micros(counts) (counts) +#else +#define CounterGet() (system_time()) +#define Counter2Micros(counts) (counts) +#endif /* HAVE_GETHRTIME */ + +/* + * Function prototypes. + */ +#ifndef GAMMA +char *LocateJRE(manifest_info* info); +void ExecJRE(char *jre, char **argv); +#endif +int UnsetEnv(char *name); + +#endif