1 // https://github.com/google/sanitizers/issues/925
2 // RUN: %clang_hwasan -O0 %s -o %t && %run %t 2>&1
3 
4 // REQUIRES: aarch64-target-arch || x86_64-target-arch
5 // REQUIRES: pointer-tagging
6 
7 #include <assert.h>
8 #include <sys/types.h>
9 #include <sys/wait.h>
10 #include <unistd.h>
11 #include <stdio.h>
12 #include <sanitizer/hwasan_interface.h>
13 
child()14 __attribute__((noinline, no_sanitize("hwaddress"))) void child() {
15   char x[10000];
16   __hwasan_tag_memory(x, 0xAA, sizeof(x));
17   _exit(0);
18 }
19 
parent()20 __attribute__((noinline, no_sanitize("hwaddress"))) void parent() {
21   char x[10000];
22   __hwasan_print_shadow(&x, sizeof(x));
23   assert(__hwasan_test_shadow(x, sizeof(x)) == -1);
24 }
25 
main(int argc,char ** argv)26 int main(int argc, char **argv) {
27   if (vfork())
28     parent();
29   else
30     child();
31 
32   return 0;
33 }
34