[all-commits] [llvm/llvm-project] 86b093: [llvm-readobj] Allow syms from all sections to mat...

[James Henderson via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 86b093d1a18c1d4ccd3578e70e738a0f249ab19e
      https://github.com/llvm/llvm-project/commit/86b093d1a18c1d4ccd3578e70e738a0f249ab19e
  Author: James Henderson <james.henderson at sony.com>
  Date:   2020-03-20 (Fri, 20 Mar 2020)

  Changed paths:
    M llvm/test/tools/llvm-readobj/ELF/stack-sizes.test
    M llvm/tools/llvm-readobj/ELFDumper.cpp

  Log Message:
  -----------
  [llvm-readobj] Allow syms from all sections to match stack size entries

Prior to this change, for non-relocatable objects llvm-readobj would
assume that all symbols that corresponded to a stack size section's
entries were in the section specified by the section's sh_link field.
In the presence of an output section description combining
SHF_LINK_ORDER sections linking different output sections, this cannot
be respected, since linker script section patterns are "by name" by
nature. Consequently, the sh_link value would not be correct for all
section entries.

This patch changes llvm-readobj to ignore the section of symbols in a
non-relocatable object.

Fixes https://bugs.llvm.org/show_bug.cgi?id=45228.

Reviewed by: grimar, MaskRay

Differential Revision: https://reviews.llvm.org/D76425