[PATCH] D80392: [mips][mc][clang] Use pc-relative relocations in .eh_frame

[Simon Atanasyan via Phabricator via llvm-commits]

atanasyan updated this revision to Diff 367472.
atanasyan retitled this revision from "[WIP][mips] Use pc-relative relocations in .eh_frame" to "[mips][mc][clang] Use pc-relative relocations in .eh_frame".
atanasyan edited the summary of this revision.
atanasyan edited reviewers, added: emaste, grosbach; removed: sdardis, dsanders, espindola.
atanasyan added a project: clang.
atanasyan added a comment.
Herald added subscribers: cfe-commits, dang, sdardis.

For compatibility with tools unsupported 64-bit pc-relative relocations the patch introduces new command line options in Clang: `mmips-pc64-rel` and `mno-mips-pc64-rel`. These options passed to LLVM by Clang driver as `-mmips-pc64-rel={true|false}`. I could not find any better way to pass the option into `MC` layer.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D80392/new/

https://reviews.llvm.org/D80392

Files:
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/test/Driver/mips-features.c
  lld/test/ELF/mips-eh_frame-pic.s
  llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
  llvm/lib/MC/MCObjectFileInfo.cpp
  llvm/test/CodeGen/Mips/ehframe-indirect.ll
  llvm/test/DebugInfo/Mips/eh_frame.ll
  llvm/test/MC/Mips/eh-frame.s

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