OpenJDK / jdk-updates / jdk12u
changeset 8490:d58c5dbf8c7b
7012072: CompileTheWorld causes incorrect class initialization
Reviewed-by: kvn, twisti
| author | never |
|---|---|
| date | Wed, 23 Feb 2011 19:09:16 -0800 |
| parents | 7ab03c615436 |
| children | 058b35a9d008 e93bfdd91c63 |
| files | hotspot/src/share/vm/prims/unsafe.cpp |
| diffstat | 1 files changed, 2 insertions(+), 0 deletions(-) [+] |
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--- a/hotspot/src/share/vm/prims/unsafe.cpp Wed Feb 23 12:28:23 2011 -0800 +++ b/hotspot/src/share/vm/prims/unsafe.cpp Wed Feb 23 19:09:16 2011 -0800 @@ -110,6 +110,8 @@ inline void* index_oop_from_field_offset_long(oop p, jlong field_offset) { jlong byte_offset = field_offset_to_byte_offset(field_offset); + // Don't allow unsafe to be used to read or write the header word of oops + assert(p == NULL || field_offset >= oopDesc::header_size(), "offset must be outside of header"); #ifdef ASSERT if (p != NULL) { assert(byte_offset >= 0 && byte_offset <= (jlong)MAX_OBJECT_SIZE, "sane offset");