[tsan] Add environment variable TSAN_SYMBOLIZER_PATH as we do in other sanitizers

ASan, LSan, MSan and UBSan all allow to use environment variable `*SAN_SYMBOLIZER_PATH` to pass the symbolizer path, this patch add `TSAN_SYMBOLIZER_PATH` to TSan.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D108911

diff --git a/compiler-rt/lib/tsan/rtl/tsan_flags.cpp b/compiler-rt/lib/tsan/rtl/tsan_flags.cpp
index 49e4a9c..ee89862 100644 (file)
--- a/compiler-rt/lib/tsan/rtl/tsan_flags.cpp
+++ b/compiler-rt/lib/tsan/rtl/tsan_flags.cpp
@@ -55,6 +55,7 @@ void InitializeFlags(Flags *f, const char *env, const char *env_option_name) {
     // Override some common flags defaults.
     CommonFlags cf;
     cf.CopyFrom(*common_flags());
+    cf.external_symbolizer_path = GetEnv("TSAN_SYMBOLIZER_PATH");
     cf.allow_addr2line = true;
     if (SANITIZER_GO) {
       // Does not work as expected for Go: runtime handles SIGABRT and crashes.