[PATCH] D32886: [asan] A clang flag to enable ELF globals-gc

[Evgenii Stepanov via Phabricator via cfe-commits]

eugenis created this revision.

This feature is subtly broken when the linker is gold 2.26 or
earlier. See the following bug for details:

  https://sourceware.org/bugzilla/show_bug.cgi?id=19002

Since the decision needs to be made at compilation time, we can not
test the linker version. The flag is off by default on ELF targets,
and on otherwise.


Repository:
  rL LLVM

https://reviews.llvm.org/D32886

Files:
  include/clang/Driver/Options.td
  include/clang/Driver/SanitizerArgs.h
  include/clang/Frontend/CodeGenOptions.def
  lib/CodeGen/BackendUtil.cpp
  lib/Driver/SanitizerArgs.cpp
  lib/Frontend/CompilerInvocation.cpp
  test/CodeGen/asan-globals-gc.cpp
  test/Driver/fsanitize.c

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