diff options
Diffstat (limited to 'lib/Driver/Tools.cpp')
| -rw-r--r-- | lib/Driver/Tools.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp index 887c64cff0..fcfee50859 100644 --- a/lib/Driver/Tools.cpp +++ b/lib/Driver/Tools.cpp @@ -1304,6 +1304,27 @@ static void addAsanRTLinux(const ToolChain &TC, const ArgList &Args, } } +/// If ThreadSanitizer is enabled, add appropriate linker flags (Linux). +/// This needs to be called before we add the C run-time (malloc, etc). +static void addTsanRTLinux(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs) { + if (!Args.hasFlag(options::OPT_fthread_sanitizer, + options::OPT_fno_thread_sanitizer, false)) + return; + if (!Args.hasArg(options::OPT_shared)) { + // LibTsan is "libclang_rt.tsan-<ArchName>.a" in the Linux library + // resource directory. + SmallString<128> LibTsan(TC.getDriver().ResourceDir); + llvm::sys::path::append(LibTsan, "lib", "linux", + (Twine("libclang_rt.tsan-") + + TC.getArchName() + ".a")); + CmdArgs.push_back(Args.MakeArgString(LibTsan)); + CmdArgs.push_back("-lpthread"); + CmdArgs.push_back("-ldl"); + CmdArgs.push_back("-export-dynamic"); + } +} + static bool shouldUseFramePointer(const ArgList &Args, const llvm::Triple &Triple) { if (Arg *A = Args.getLastArg(options::OPT_fno_omit_frame_pointer, @@ -5330,6 +5351,7 @@ void linuxtools::Link::ConstructJob(Compilation &C, const JobAction &JA, // Call this before we add the C run-time. addAsanRTLinux(getToolChain(), Args, CmdArgs); + addTsanRTLinux(getToolChain(), Args, CmdArgs); if (!Args.hasArg(options::OPT_nostdlib)) { if (!Args.hasArg(options::OPT_nodefaultlibs)) { |