[all-commits] [llvm/llvm-project] 3d039f: [compiler-rt] PR#39514 Support versioned llvm-symb...

[Andrzej Hunt via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3d039f65015f0e7878b77c542a89493dcdd755d0
      https://github.com/llvm/llvm-project/commit/3d039f65015f0e7878b77c542a89493dcdd755d0
  Author: Andrzej Hunt <ajrhunt at google.com>
  Date:   2021-03-11 (Thu, 11 Mar 2021)

  Changed paths:
    M compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_posix_libcdep.cpp

  Log Message:
  -----------
  [compiler-rt] PR#39514 Support versioned llvm-symbolizer binaries

Some linux distributions produce versioned llvm-symbolizer binaries,
e.g. my llvm-11 installation puts the symbolizer binary at
/usr/bin/llvm-symbolizer-11.0.0 . However if you then try to run
a binary containing ASAN with
ASAN_SYMBOLIZER_PATH=..../llvm-symbolizer-FOO , it will fail on startup
with "isn't a known symbolizer".

Although it is possible to work around this by setting up symlinks,
that's kindof ugly - supporting versioned binaries is a nicer solution.
(There are now multiple stack overflow and blog posts talking about
 this exact issue :) .)

Originally added in:
https://reviews.llvm.org/D8285

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D97682