[PATCH] D58910: [LLD][COFF] More detailed information for /failifmismatch

[Alexandre Ganea via Phabricator via llvm-commits]

aganea created this revision.
aganea added reviewers: ruiu, rnk.
Herald added a project: LLVM.

When mismatched `#pragma detect_mismatch` declarations occur, now print the location of the conflicting OBJs.

MSVC prints:

  test2.obj : error LNK2038: mismatch detected for 'TEST': value '2' doesn't match value '1' in test.obj
  test.exe : fatal error LNK1319: 1 mismatches detected

LLD now prints:

  lld-link: error: /failifmismatch: mismatch detected for 'TEST':
  >>> test.obj: has value 1
  >>> test2.obj: has value 2

Fixes PR38579


Repository:
  rLLD LLVM Linker

https://reviews.llvm.org/D58910

Files:
  COFF/Config.h
  COFF/Driver.cpp
  COFF/Driver.h
  COFF/DriverUtils.cpp
  COFF/SymbolTable.cpp
  test/COFF/Inputs/failmismatch1.bc
  test/COFF/Inputs/failmismatch2.bc
  test/COFF/failifmismatch.test

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