[MSAN] Fix test SmallPreAllocatedStackThread for MIPS

[slthakur]

Summary

Msan was intercepting version 2.1 of the pthread_create function which was making it to crash in libc because __pthread_create_2_1 modifies the stack attributes of the thread. Intercepting the correct version fixes the test SmallPreAllocatedStackThread.

[samsonov]

LGTM

[slthakur]

Committed in revision 261980

lib/msan/msan_interceptors.cc

void InitializeInterceptors() {
   INTERCEPT_FUNCTION(recv);
   INTERCEPT_FUNCTION(recvfrom);
   INTERCEPT_FUNCTION(dladdr);
   INTERCEPT_FUNCTION(dlerror);
   INTERCEPT_FUNCTION(dl_iterate_phdr);
   INTERCEPT_FUNCTION(getrusage);
   INTERCEPT_FUNCTION(sigaction);
   INTERCEPT_FUNCTION(signal);
+#if defined(__mips__)
+  INTERCEPT_FUNCTION_VER(pthread_create, "GLIBC_2.2");
+#else
   INTERCEPT_FUNCTION(pthread_create);
+#endif
   INTERCEPT_FUNCTION(pthread_key_create);
   INTERCEPT_FUNCTION(pthread_join);
   INTERCEPT_FUNCTION(tzset);
   INTERCEPT_FUNCTION(__cxa_atexit);
   INTERCEPT_FUNCTION(shmat);
   INTERCEPT_FUNCTION(fork);
   INTERCEPT_FUNCTION(openpty);
   INTERCEPT_FUNCTION(forkpty);
 
   inited = 1;
 }
 } // namespace __msan