test/msan/mktime.cc

   1 // RUN: %clangxx_msan -m64 -O0 -g %s -o %t && %run %t
   2 // RUN: %clangxx_msan -m64 -O0 -g -DUNINIT %s -o %t && not %run %t 2>&1 | FileCheck %s
   3
   4 #include <assert.h>
   5 #include <time.h>
   6
   7 #include <sanitizer/msan_interface.h>
   8
   9 int main(void) {
  10   struct tm tm;
  11   tm.tm_year = 2014;
  12   tm.tm_mon = 3;
  13   tm.tm_mday = 28;
  14 #ifndef UNINIT
  15   tm.tm_hour = 13;
  16 #endif
  17   tm.tm_min = 4;
  18   tm.tm_sec = 42;
  19   tm.tm_isdst = -1;
  20   time_t t = mktime(&tm);
  21   // CHECK: MemorySanitizer: use-of-uninitialized-value
  22   // CHECK: in main{{.*}}mktime.cc:[[@LINE-2]]
  23   assert(t != -1);
  24   assert(__msan_test_shadow(&tm, sizeof(tm)) == -1);
  25   return 0;
  26 }