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Differential D142708 Diff 493582 llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp

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llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp

Show First 20 Lines • Show All 2,300 Lines • ▼ Show 20 Lines for (size_t i = 0; i < n; i++) {
GlobalValue::LinkageTypes Linkage = G->getLinkage(); GlobalValue::LinkageTypes Linkage = G->getLinkage();
if (G->isConstant() && Linkage == GlobalValue::PrivateLinkage) if (G->isConstant() && Linkage == GlobalValue::PrivateLinkage)
Linkage = GlobalValue::InternalLinkage; Linkage = GlobalValue::InternalLinkage;
GlobalVariable *NewGlobal = new GlobalVariable( GlobalVariable *NewGlobal = new GlobalVariable(
M, NewTy, G->isConstant(), Linkage, NewInitializer, "", G, M, NewTy, G->isConstant(), Linkage, NewInitializer, "", G,
G->getThreadLocalMode(), G->getAddressSpace()); G->getThreadLocalMode(), G->getAddressSpace());
NewGlobal->copyAttributesFrom(G); NewGlobal->copyAttributesFrom(G);
NewGlobal->setComdat(G->getComdat()); NewGlobal->setComdat(G->getComdat());
NewGlobal->setAlignment(MaybeAlign(getMinRedzoneSizeForGlobal())); NewGlobal->setAlignment(Align(getMinRedzoneSizeForGlobal()));
// Don't fold globals with redzones. ODR violation detector and redzone // Don't fold globals with redzones. ODR violation detector and redzone
// poisoning implicitly creates a dependence on the global's address, so it // poisoning implicitly creates a dependence on the global's address, so it
// is no longer valid for it to be marked unnamed_addr. // is no longer valid for it to be marked unnamed_addr.
NewGlobal->setUnnamedAddr(GlobalValue::UnnamedAddr::None); NewGlobal->setUnnamedAddr(GlobalValue::UnnamedAddr::None);
// Move null-terminated C strings to "__asan_cstring" section on Darwin. // Move null-terminated C strings to "__asan_cstring" section on Darwin.
if (TargetTriple.isOSBinFormatMachO() && !G->hasSection() && if (TargetTriple.isOSBinFormatMachO() && !G->hasSection() &&
G->isConstant()) { G->isConstant()) {
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