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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2015-01-22 13:33:16 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2015-01-22 13:33:16 +0000 |
| commit | d38af30b74841a51cad519e0d04ec3c9515d0ccb (patch) | |
| tree | 28e21e14b2c0a3d216f1f53d65d560dbee84bf44 /compiler-rt/lib/asan/asan_debugging.cc | |
| parent | a713fce5399276459d7c5881619b5349739a10c0 (diff) | |
| download | bcm5719-llvm-d38af30b74841a51cad519e0d04ec3c9515d0ccb.tar.gz bcm5719-llvm-d38af30b74841a51cad519e0d04ec3c9515d0ccb.zip | |
[msan] Better use-after-free reports.
By attaching an extra integer tag to heap origins, we are able
to distinguish between uninits
- created by heap allocation,
- created by heap deallocation (i.e. use-after-free),
- created by __msan_allocated_memory call,
- etc.
See https://code.google.com/p/memory-sanitizer/issues/detail?id=35.
llvm-svn: 226821
Diffstat (limited to 'compiler-rt/lib/asan/asan_debugging.cc')
| -rw-r--r-- | compiler-rt/lib/asan/asan_debugging.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/compiler-rt/lib/asan/asan_debugging.cc b/compiler-rt/lib/asan/asan_debugging.cc index 2b66dd5265f..6fc5b690de9 100644 --- a/compiler-rt/lib/asan/asan_debugging.cc +++ b/compiler-rt/lib/asan/asan_debugging.cc @@ -81,8 +81,8 @@ void AsanLocateAddress(uptr addr, AddressDescription *descr) { GetInfoForHeapAddress(addr, descr); } -uptr AsanGetStack(uptr addr, uptr *trace, uptr size, u32 *thread_id, - bool alloc_stack) { +static uptr AsanGetStack(uptr addr, uptr *trace, u32 size, u32 *thread_id, + bool alloc_stack) { AsanChunkView chunk = FindHeapChunkByAddress(addr); if (!chunk.IsValid()) return 0; |
