[PATCH] D75181: [AArch64] Handle BTI/PAC in case of generated functions.

[Daniel Kiss via Phabricator via llvm-commits]

danielkiss updated this revision to Diff 247201.
danielkiss retitled this revision from "[Clang][AArch64] Add default arguments to runtime functions." to "[AArch64] Handle BTI/PAC in case of generated functions.".
danielkiss edited the summary of this revision.
danielkiss added a project: LLVM.
danielkiss added a comment.
Herald added subscribers: llvm-commits, hiraditya.

Previous version of the patch handled only the functions that are created in clang. Sanitizers can't see the codegen options therefore they also disables BTI.
This version of the patch is less invasive in my opinion, effects only aarch64.
branch-target-enforcement(BTI) and sign-return-address(PAC) are added to all function that comes from clang frontend.
If the backend encounters with the function without BTI attribute but the module is compiled with BTI then it assumes it should be made BTI compatible.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D75181/new/

https://reviews.llvm.org/D75181

Files:
  clang/lib/CodeGen/CGCall.cpp
  clang/lib/CodeGen/CGDeclCXX.cpp
  clang/lib/CodeGen/CodeGenModule.cpp
  clang/lib/CodeGen/TargetInfo.cpp
  clang/test/CodeGen/aarch64-branch-protection-attr.c
  clang/test/CodeGen/aarch64-sign-return-address.c
  clang/test/CodeGenCXX/aarch64-branch-target_clang_call_terminate.cpp
  clang/test/CodeGenCXX/aarch64-sign-return-address-static-ctor.cpp
  llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
  llvm/lib/Target/AArch64/AArch64BranchTargets.cpp
  llvm/lib/Target/AArch64/AArch64CallLowering.cpp
  llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/test/CodeGen/AArch64/branch-target-enforcement-indirect-calls.ll
  llvm/test/CodeGen/AArch64/branch-target-enforcement.mir
  llvm/test/CodeGen/AArch64/bti-branch-relaxation.ll
  llvm/test/CodeGen/AArch64/machine-outliner-bti.mir
  llvm/test/CodeGen/AArch64/machine-outliner-outline-bti.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-0.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-1.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-2.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-3.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-4.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-5.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-6.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-7.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-8.ll
  llvm/test/CodeGen/AArch64/note-gnu-property-pac-bti-9.ll
  llvm/test/CodeGen/AArch64/patchable-function-entry-bti.ll

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