[PATCH] D72215: [AArch64] Add function attribute "patchable-function-entry" to add NOPs at function entry

[Fangrui Song via Phabricator via llvm-commits]

MaskRay updated this revision to Diff 236485.
MaskRay added a comment.

Address comments.

The section __patchable_function_entries needs more thoughts so it is not
implemented. I'll probably use SHF_LINK_ORDER when -ffunction-sections, and add
SHF_WRITE (to prevent text relocations; apparently GCC does not consider these
issues).


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D72215/new/

https://reviews.llvm.org/D72215

Files:
  llvm/lib/CodeGen/PatchableFunction.cpp
  llvm/lib/IR/Verifier.cpp
  llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp
  llvm/test/CodeGen/AArch64/patchable-function-entry.ll
  llvm/test/Verifier/invalid-patchable-function-entry.ll

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