compiler-rt/test/dfsan/flush.c

   1 // Tests dfsan_flush().
   2 // RUN: %clang_dfsan %s -o %t && %run %t
   3 // RUN: %clang_dfsan -DORIGIN_TRACKING -mllvm -dfsan-track-origins=1 %s -o %t && %run %t
   4
   5 #include <sanitizer/dfsan_interface.h>
   6 #include <assert.h>
   7 #include <stdlib.h>
   8
   9 int global;
  10
  11 int main() {
  12   int local;
  13   int *heap = (int*)malloc(sizeof(int));
  14
  15   dfsan_set_label(10, &global, sizeof(global));
  16   dfsan_set_label(20, &local, sizeof(local));
  17   dfsan_set_label(30, heap, sizeof(*heap));
  18
  19   assert(dfsan_get_label(global) == 10);
  20   assert(dfsan_get_label(local) == 20);
  21   assert(dfsan_get_label(*heap) == 30);
  22 #ifdef ORIGIN_TRACKING
  23   assert(dfsan_get_origin(global));
  24   assert(dfsan_get_origin(local));
  25   assert(dfsan_get_origin(*heap));
  26 #endif
  27
  28   dfsan_flush();
  29
  30   assert(dfsan_get_label(global) == 0);
  31   assert(dfsan_get_label(local) == 0);
  32   assert(dfsan_get_label(*heap) == 0);
  33   assert(dfsan_get_origin(global) == 0);
  34   assert(dfsan_get_origin(local) == 0);
  35   assert(dfsan_get_origin(*heap) == 0);
  36
  37   free(heap);
  38 }