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[msan] Add source file:line to stack origin reports. 

Compiler part.

llvm-svn: 190689
This commit is contained in:
Evgeniy Stepanov 2013-09-13 12:54:49 +00:00
parent 95b3be36e0
commit 0435ecd18f
1 changed files with 8 additions and 6 deletions
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14
llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
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@ -213,7 +213,7 @@ class MemorySanitizer : public FunctionPass {
Value *MsanCopyOriginFn;
/// \brief Run-time helper that generates a new origin value for a stack
/// allocation.
Value *MsanSetAllocaOriginFn;
Value *MsanSetAllocaOrigin4Fn;
/// \brief Run-time helper that poisons stack on function entry.
Value *MsanPoisonStackFn;
/// \brief MSan runtime replacements for memmove, memcpy and memset.
@ -281,9 +281,9 @@ void MemorySanitizer::initializeCallbacks(Module &M) {
MsanCopyOriginFn = M.getOrInsertFunction(
"__msan_copy_origin", IRB.getVoidTy(), IRB.getInt8PtrTy(),
IRB.getInt8PtrTy(), IntptrTy, NULL);
MsanSetAllocaOriginFn = M.getOrInsertFunction(
"__msan_set_alloca_origin", IRB.getVoidTy(), IRB.getInt8PtrTy(), IntptrTy,
IRB.getInt8PtrTy(), NULL);
MsanSetAllocaOrigin4Fn = M.getOrInsertFunction(
"__msan_set_alloca_origin4", IRB.getVoidTy(), IRB.getInt8PtrTy(), IntptrTy,
IRB.getInt8PtrTy(), IntptrTy, NULL);
MsanPoisonStackFn = M.getOrInsertFunction(
"__msan_poison_stack", IRB.getVoidTy(), IRB.getInt8PtrTy(), IntptrTy, NULL);
MemmoveFn = M.getOrInsertFunction(
@ -1734,10 +1734,12 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
Value *Descr =
createPrivateNonConstGlobalForString(*F.getParent(),
StackDescription.str());
IRB.CreateCall3(MS.MsanSetAllocaOriginFn,
IRB.CreateCall4(MS.MsanSetAllocaOrigin4Fn,
IRB.CreatePointerCast(&I, IRB.getInt8PtrTy()),
ConstantInt::get(MS.IntptrTy, Size),
IRB.CreatePointerCast(Descr, IRB.getInt8PtrTy()));
IRB.CreatePointerCast(Descr, IRB.getInt8PtrTy()),
IRB.CreatePointerCast(&F, MS.IntptrTy));
}
}