[PATCH] D70798: [XCOFF][AIX] Emit TOC entries for object file generation

[Jason Liu via Phabricator via llvm-commits]

jasonliu created this revision.
jasonliu added reviewers: daltenty, DiggerLin, sfertile, hubert.reinterpretcast.
Herald added subscribers: llvm-commits, jsji, kbarton, hiraditya, nemanjai.
Herald added a project: LLVM.

Implement emitTCEntry for PPCTargetXCOFFStreamer.
Add TC csects to TOCCsects for object file writing.

Note:

1. I did not include any raw data testing for this object file generation because TC entries raw data will all be 0 without relocation implemented. I will add raw data testing as part of relocation testing later.
2. I removed "Symbol->setFragment(F);" for common symbols because we don't need it, and if we have it then we would hit assertions below:

Assertion `(SymbolContents == SymContentsUnset || SymbolContents == SymContentsOffset) && "Cannot get offset for a common/variable symbol"' failed.


https://reviews.llvm.org/D70798

Files:
  llvm/lib/MC/MCXCOFFStreamer.cpp
  llvm/lib/MC/XCOFFObjectWriter.cpp
  llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp
  llvm/test/CodeGen/PowerPC/aix-xcoff-data-only-notoc.ll
  llvm/test/CodeGen/PowerPC/aix-xcoff-toc.ll

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