new llvm::GlobalVariable(module,
stringConstant->getType(),
true,
- llvm::GlobalValue::PrivateLinkage,
+ llvm::GlobalValue::LinkerPrivateLinkage,
stringConstant,
"");
}
new llvm::GlobalVariable(module,
stringConstant->getType(),
true,
- llvm::GlobalValue::PrivateLinkage,
+ llvm::GlobalValue::LinkerPrivateLinkage,
stringConstant,
"");
}
static GlobalVariable *createPrivateGlobalForString(
Module &M, StringRef Str, bool AllowMerging) {
Constant *StrConst = ConstantDataArray::getString(M.getContext(), Str);
- // We use private linkage for module-local strings. If they can be merged
- // with another one, we set the unnamed_addr attribute.
+ // For module-local strings that can be merged with another one we set the
+ // private linkage and the unnamed_addr attribute.
+ // Non-mergeable strings are made linker_private to remove them from the
+ // symbol table. "private" linkage doesn't work for Darwin, where the
+ // "L"-prefixed globals end up in __TEXT,__const section
+ // (see http://llvm.org/bugs/show_bug.cgi?id=17976 for more info).
+ GlobalValue::LinkageTypes linkage =
+ AllowMerging ? GlobalValue::PrivateLinkage
+ : GlobalValue::LinkerPrivateLinkage;
GlobalVariable *GV =
new GlobalVariable(M, StrConst->getType(), true,
- GlobalValue::PrivateLinkage, StrConst, kAsanGenPrefix);
- if (AllowMerging)
- GV->setUnnamedAddr(true);
+ linkage, StrConst, kAsanGenPrefix);
+ if (AllowMerging) GV->setUnnamedAddr(true);
GV->setAlignment(1); // Strings may not be merged w/o setting align 1.
return GV;
}