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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2013-02-04 07:03:24 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2013-02-04 07:03:24 +0000 |
| commit | 9c02a276049cbd1d1511a88ebc7a22bb33658237 (patch) | |
| tree | fe1428d48ffb3a0f8dc06216ea2dfe493e7369a7 /lib/Target/X86/X86JITInfo.cpp | |
| parent | f839eed5ea2bfd395256d60e15d1e31dbad6ca8b (diff) | |
| download | llvm-9c02a276049cbd1d1511a88ebc7a22bb33658237.tar.gz llvm-9c02a276049cbd1d1511a88ebc7a22bb33658237.tar.bz2 llvm-9c02a276049cbd1d1511a88ebc7a22bb33658237.tar.xz | |
More MSan/ASan annotations.
This change lets us bootstrap LLVM/Clang under ASan and MSan. It contains
fixes for 2 issues:
- X86JIT reads return address from stack, which MSan does not know is
initialized.
- bugpoint tests run binaries with RLIMIT_AS. This does not work with certain
Sanitizers.
We are no longer including config.h in Compiler.h with this change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174306 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86JITInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86JITInfo.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Target/X86/X86JITInfo.cpp b/lib/Target/X86/X86JITInfo.cpp index cca391f647..0a4accee99 100644 --- a/lib/Target/X86/X86JITInfo.cpp +++ b/lib/Target/X86/X86JITInfo.cpp @@ -351,6 +351,9 @@ static void LLVM_ATTRIBUTE_USED X86CompilationCallback2(intptr_t *StackPtr, intptr_t RetAddr) { intptr_t *RetAddrLoc = &StackPtr[1]; + // We are reading raw stack data here. Tell MemorySanitizer that it is + // sufficiently initialized. + __msan_unpoison(RetAddrLoc, sizeof(*RetAddrLoc)); assert(*RetAddrLoc == RetAddr && "Could not find return address on the stack!"); |