[all-commits] [llvm/llvm-project] 0e2ed9: [AIX][PGO] Teach profile runtime to read build-id

[Wael Yehia via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0e2ed90516ee834ca78f4974a7aebcba1a302eb0
      https://github.com/llvm/llvm-project/commit/0e2ed90516ee834ca78f4974a7aebcba1a302eb0
  Author: Wael Yehia <wyehia at ca.ibm.com>
  Date:   2023-03-29 (Wed, 29 Mar 2023)

  Changed paths:
    M compiler-rt/lib/profile/InstrProfilingInternal.h
    M compiler-rt/lib/profile/InstrProfilingPlatformAIX.c
    M compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
    M compiler-rt/lib/profile/InstrProfilingWriter.c
    A compiler-rt/test/profile/AIX/binary-id-shared.c
    A compiler-rt/test/profile/AIX/binary-id.c

  Log Message:
  -----------
  [AIX][PGO] Teach profile runtime to read build-id

On AIX, the build-id can be embedded in a binary using the -mxcoff-build-id
compiler option. When present, the build id is stored as an ascii string at the
beginning of the string table in the loader section of the XCOFF file.

Reviewed By: stephenpeckham, daltenty

Differential Revision: https://reviews.llvm.org/D146976