diff options
Diffstat (limited to 'clang/lib/Driver/SanitizerArgs.cpp')
| -rw-r--r-- | clang/lib/Driver/SanitizerArgs.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp index b6fc9e9ba4f..9ab2e176845 100644 --- a/clang/lib/Driver/SanitizerArgs.cpp +++ b/clang/lib/Driver/SanitizerArgs.cpp @@ -566,6 +566,13 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC, AsanUseAfterScope = Args.hasFlag( options::OPT_fsanitize_address_use_after_scope, options::OPT_fno_sanitize_address_use_after_scope, AsanUseAfterScope); + + // As a workaround for a bug in gold 2.26 and earlier, dead stripping of + // globals in ASan is disabled by default on ELF targets. + // See https://sourceware.org/bugzilla/show_bug.cgi?id=19002 + AsanGlobalsDeadStripping = + !TC.getTriple().isOSBinFormatELF() || + Args.hasArg(options::OPT_fsanitize_address_globals_dead_stripping); } else { AsanUseAfterScope = false; } @@ -717,6 +724,9 @@ void SanitizerArgs::addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, if (AsanUseAfterScope) CmdArgs.push_back("-fsanitize-address-use-after-scope"); + if (AsanGlobalsDeadStripping) + CmdArgs.push_back("-fsanitize-address-globals-dead-stripping"); + // MSan: Workaround for PR16386. // ASan: This is mainly to help LSan with cases such as // https://code.google.com/p/address-sanitizer/issues/detail?id=373 |
