[PATCH] D102126: [lld-macho] place __TEXT,__stubs before __TEXT,__text

Greg McGary via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sun May 9 00:25:38 PDT 2021


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The thunk placement algorithm is better (lower cost, better results) when __stubs immediatelly precedes __text.

Also, when __stubs comes first AND PGO/FDO places hot code at the front of __text, then stubs are reachable without thunks from low __text addresses.

The test cases now work with either layout.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102126

Files:
  lld/MachO/InputSection.h
  lld/MachO/SyntheticSections.cpp
  lld/MachO/Writer.cpp
  lld/test/MachO/invalid/range-check.s
  lld/test/MachO/symtab.s
  lld/test/MachO/x86-64-stubs.s

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