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[asan] remove .preinit_array from the compiler module (it breaks .so builds). This should be done in the run-time.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146527 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kostya Serebryany
2011-12-14 00:01:51 +00:00
parent a740e19e7e
commit bd7910d158
1 changed files with 0 additions and 16 deletions
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16
lib/Transforms/Instrumentation/AddressSanitizer.cpp
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@@ -163,8 +163,6 @@ struct AddressSanitizer : public ModulePass {
private: private:
void appendToPreinitArray(Module &M, Function *F);
uint64_t getAllocaSizeInBytes(AllocaInst *AI) { uint64_t getAllocaSizeInBytes(AllocaInst *AI) {
Type *Ty = AI->getAllocatedType(); Type *Ty = AI->getAllocatedType();
uint64_t SizeInBytes = TD->getTypeStoreSizeInBits(Ty) / 8; uint64_t SizeInBytes = TD->getTypeStoreSizeInBits(Ty) / 8;
@@ -565,17 +563,6 @@ bool AddressSanitizer::insertGlobalRedzones(Module &M) {
return true; return true;
} }
// .preinit_array is something that hapens before all other inits.
// On systems where .preinit_array is honored, we will call __asan_init early.
void AddressSanitizer::appendToPreinitArray(Module &M, Function *F) {
IRBuilder<> IRB(M.getContext());
GlobalVariable *Var =
new GlobalVariable(M, PointerType::getUnqual(F->getFunctionType()),
false, GlobalValue::PrivateLinkage,
F, "__asan_preinit_private");
Var->setSection(".preinit_array");
}
// virtual // virtual
bool AddressSanitizer::runOnModule(Module &M) { bool AddressSanitizer::runOnModule(Module &M) {
// Initialize the private fields. No one has accessed them before. // Initialize the private fields. No one has accessed them before.
@@ -647,9 +634,6 @@ bool AddressSanitizer::runOnModule(Module &M) {
appendToGlobalCtors(M, AsanCtorFunction, 1 /*high priority*/); appendToGlobalCtors(M, AsanCtorFunction, 1 /*high priority*/);
if (M.getTargetTriple().find("linux") != std::string::npos)
appendToPreinitArray(M, AsanInitFunction);
return Res; return Res;
} }