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Diffstat (limited to 'lib/Transforms/Instrumentation/AddressSanitizer.cpp')
-rw-r--r--lib/Transforms/Instrumentation/AddressSanitizer.cpp32
1 files changed, 16 insertions, 16 deletions
diff --git a/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index 036dd8d39a08..b866958e3c4b 100644
--- a/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -265,11 +265,10 @@ static cl::opt<bool>
cl::Hidden, cl::init(false));
static cl::opt<bool>
- ClUseMachOGlobalsSection("asan-globals-live-support",
- cl::desc("Use linker features to support dead "
- "code stripping of globals "
- "(Mach-O only)"),
- cl::Hidden, cl::init(true));
+ ClUseGlobalsGC("asan-globals-live-support",
+ cl::desc("Use linker features to support dead "
+ "code stripping of globals"),
+ cl::Hidden, cl::init(true));
// Debug flags.
static cl::opt<int> ClDebug("asan-debug", cl::desc("debug"), cl::Hidden,
@@ -594,13 +593,15 @@ struct AddressSanitizer : public FunctionPass {
};
class AddressSanitizerModule : public ModulePass {
- public:
+public:
explicit AddressSanitizerModule(bool CompileKernel = false,
- bool Recover = false)
+ bool Recover = false,
+ bool UseGlobalsGC = true)
: ModulePass(ID), CompileKernel(CompileKernel || ClEnableKasan),
- Recover(Recover || ClRecover) {}
+ Recover(Recover || ClRecover),
+ UseGlobalsGC(UseGlobalsGC && ClUseGlobalsGC) {}
bool runOnModule(Module &M) override;
- static char ID; // Pass identification, replacement for typeid
+ static char ID; // Pass identification, replacement for typeid
StringRef getPassName() const override { return "AddressSanitizerModule"; }
private:
@@ -635,6 +636,7 @@ private:
GlobalsMetadata GlobalsMD;
bool CompileKernel;
bool Recover;
+ bool UseGlobalsGC;
Type *IntptrTy;
LLVMContext *C;
Triple TargetTriple;
@@ -913,9 +915,10 @@ INITIALIZE_PASS(
"ModulePass",
false, false)
ModulePass *llvm::createAddressSanitizerModulePass(bool CompileKernel,
- bool Recover) {
+ bool Recover,
+ bool UseGlobalsGC) {
assert(!CompileKernel || Recover);
- return new AddressSanitizerModule(CompileKernel, Recover);
+ return new AddressSanitizerModule(CompileKernel, Recover, UseGlobalsGC);
}
static size_t TypeSizeToSizeIndex(uint32_t TypeSize) {
@@ -1537,9 +1540,6 @@ bool AddressSanitizerModule::ShouldInstrumentGlobal(GlobalVariable *G) {
// binary in order to allow the linker to properly dead strip. This is only
// supported on recent versions of ld64.
bool AddressSanitizerModule::ShouldUseMachOGlobalsSection() const {
- if (!ClUseMachOGlobalsSection)
- return false;
-
if (!TargetTriple.isOSBinFormatMachO())
return false;
@@ -1911,9 +1911,9 @@ bool AddressSanitizerModule::InstrumentGlobals(IRBuilder<> &IRB, Module &M) {
Initializers[i] = Initializer;
}
- if (TargetTriple.isOSBinFormatCOFF()) {
+ if (UseGlobalsGC && TargetTriple.isOSBinFormatCOFF()) {
InstrumentGlobalsCOFF(IRB, M, NewGlobals, Initializers);
- } else if (ShouldUseMachOGlobalsSection()) {
+ } else if (UseGlobalsGC && ShouldUseMachOGlobalsSection()) {
InstrumentGlobalsMachO(IRB, M, NewGlobals, Initializers);
} else {
InstrumentGlobalsWithMetadataArray(IRB, M, NewGlobals, Initializers);