Driver: CrossWindows sanitizers link support
Add the required libraries to the linker invocation when building with
sanitizers.
llvm-svn: 251600
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 1b5d2ce..3e4cb31 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -9746,6 +9746,22 @@
}
}
+ if (TC.getSanitizerArgs().needsAsanRt()) {
+ // TODO handle /MT[d] /MD[d]
+ if (Args.hasArg(options::OPT_shared)) {
+ CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dll_thunk"));
+ } else {
+ for (const auto &Lib : {"asan_dynamic", "asan_dynamic_runtime_thunk"})
+ CmdArgs.push_back(TC.getCompilerRTArgString(Args, Lib));
+ // Make sure the dynamic runtime thunk is not optimized out at link time
+ // to ensure proper SEH handling.
+ CmdArgs.push_back(Args.MakeArgString("--undefined"));
+ CmdArgs.push_back(Args.MakeArgString(TC.getArch() == llvm::Triple::x86
+ ? "___asan_seh_interceptor"
+ : "__asan_seh_interceptor"));
+ }
+ }
+
Exec = Args.MakeArgString(TC.GetLinkerPath());
C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));