diff options
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenModule.cpp | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp index e490b1c..3746bc04 100644 --- a/clang/lib/CodeGen/CodeGenModule.cpp +++ b/clang/lib/CodeGen/CodeGenModule.cpp @@ -1325,22 +1325,29 @@ void CodeGenModule::Release() { "tag-stack-memory-buildattr", 1); if (T.isARM() || T.isThumb() || T.isAArch64()) { + // Previously 1 is used and meant for the backed to derive the function + // attribute form it. 2 now means function attributes already set for all + // functions in this module, so no need to propagate those from the module + // flag. Value is only used in case of LTO module merge because the backend + // will see all required function attribute set already. Value is used + // before modules got merged. Any posive value means the feature is active + // and required binary markings need to be emit accordingly. if (LangOpts.BranchTargetEnforcement) getModule().addModuleFlag(llvm::Module::Min, "branch-target-enforcement", - 1); + 2); if (LangOpts.BranchProtectionPAuthLR) getModule().addModuleFlag(llvm::Module::Min, "branch-protection-pauth-lr", - 1); + 2); if (LangOpts.GuardedControlStack) - getModule().addModuleFlag(llvm::Module::Min, "guarded-control-stack", 1); + getModule().addModuleFlag(llvm::Module::Min, "guarded-control-stack", 2); if (LangOpts.hasSignReturnAddress()) - getModule().addModuleFlag(llvm::Module::Min, "sign-return-address", 1); + getModule().addModuleFlag(llvm::Module::Min, "sign-return-address", 2); if (LangOpts.isSignReturnAddressScopeAll()) getModule().addModuleFlag(llvm::Module::Min, "sign-return-address-all", - 1); + 2); if (!LangOpts.isSignReturnAddressWithAKey()) getModule().addModuleFlag(llvm::Module::Min, - "sign-return-address-with-bkey", 1); + "sign-return-address-with-bkey", 2); if (LangOpts.PointerAuthELFGOT) getModule().addModuleFlag(llvm::Module::Min, "ptrauth-elf-got", 1); |