Mercurial > hg > truffle
changeset 6889:e81a8af10cd9
8001071: Add simple range check into VM implemenation of Unsafe access methods
Summary: Add simple check in debug version of VM.
Reviewed-by: twisti, johnc
author | kvn |
---|---|
date | Thu, 18 Oct 2012 07:06:31 -0700 |
parents | cfe522e6461c |
children | aaeb9add1ab3 |
files | src/share/vm/prims/unsafe.cpp |
diffstat | 1 files changed, 2 insertions(+), 0 deletions(-) [+] |
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--- a/src/share/vm/prims/unsafe.cpp Wed Oct 17 12:09:32 2012 -0700 +++ b/src/share/vm/prims/unsafe.cpp Thu Oct 18 07:06:31 2012 -0700 @@ -124,6 +124,8 @@ assert((void*)p->obj_field_addr<oop>((jint)byte_offset) == ptr_plus_disp, "raw [ptr+disp] must be consistent with oop::field_base"); } + jlong p_size = HeapWordSize * (jlong)(p->size()); + assert(byte_offset < p_size, err_msg("Unsafe access: offset " INT64_FORMAT " > object's size " INT64_FORMAT, byte_offset, p_size)); } #endif if (sizeof(char*) == sizeof(jint)) // (this constant folds!)