[MSAN] Add result printing for failed call in pthread_getaffinity_np. Will be reverted when test failure is diagnosed. Depends on: https://reviews.llvm.org/D127185

[vitalybuka]

compiler-rt/test/sanitizer_common/TestCases/Linux/pthread_getaffinity_np.cpp

3

unless you already know the reason, maybe enable android as well?

[kda]

compiler-rt/test/sanitizer_common/TestCases/Linux/pthread_getaffinity_np.cpp

3

Yes. This test broke android build, as libc (where android keeps libresolv) does not implement pthread_getaffinity_np. (In fact, the build indicated that it might think I wanted to use 'sched_getaffinity', which is already intercepted.)

compiler-rt/test/sanitizer_common/TestCases/Linux/pthread_getaffinity_np.cpp

 // RUN: %clangxx -O0 %s -o %t && %run %t
 
 // UNSUPPORTED: android
 
 #include <assert.h>
 #include <pthread.h>
+#include <stdio.h>
 #include <sys/sysinfo.h>
 
 #include <sanitizer/msan_interface.h>
 
 int main() {
   cpu_set_t set_x;
   int res = pthread_getaffinity_np(pthread_self(), sizeof(set_x), &set_x);
+  if (res != 0)
+    printf("res: %d\n", res);
   assert(res == 0);
   assert(CPU_COUNT_S(sizeof(set_x), &set_x) == get_nprocs());
 
   return 0;
 }