tsan: remove everything related to rss/background thread in Go mode

In Go mode the background thread is not started (internal_thread_start is empty).
There is no sense in having this code compiled in.
Also removes dependency on sanitizer_linux_libcdep.cc which is good,
ideally Go runtime does not depend on libc at all.

llvm-svn: 229396

1 files changed, 2 insertions, 0 deletions

diff --git a/compiler-rt/lib/tsan/rtl/tsan_rtl_thread.cc b/compiler-rt/lib/tsan/rtl/tsan_rtl_thread.cc
index 0cb2fcbde00..3ca9793e699 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_rtl_thread.cc
+++ b/compiler-rt/lib/tsan/rtl/tsan_rtl_thread.cc
@@ -241,6 +241,7 @@ void ThreadStart(ThreadState *thr, int tid, uptr os_id) {
   uptr stk_size = 0;
   uptr tls_addr = 0;
   uptr tls_size = 0;
+#ifndef SANITIZER_GO
   GetThreadStackAndTls(tid == 0, &stk_addr, &stk_size, &tls_addr, &tls_size);
 
   if (tid) {
@@ -261,6 +262,7 @@ void ThreadStart(ThreadState *thr, int tid, uptr os_id) {
           thr_end, tls_addr + tls_size - thr_end);
     }
   }
+#endif
 
   ThreadRegistry *tr = ctx->thread_registry;
   OnStartedArgs args = { thr, stk_addr, stk_size, tls_addr, tls_size };