1673dc3d4SNico Weber // https://github.com/google/sanitizers/issues/925
2673dc3d4SNico Weber // RUN: %clang_asan -O0 %s -o %t && %run %t 2>&1
3673dc3d4SNico Weber 
4*cf4aa683SAlexey Baturo // REQUIRES: aarch64-target-arch || x86_64-target-arch || i386-target-arch || arm-target-arch || riscv64-target-arch
5673dc3d4SNico Weber 
6673dc3d4SNico Weber #include <assert.h>
7673dc3d4SNico Weber #include <sys/types.h>
8673dc3d4SNico Weber #include <sys/wait.h>
9673dc3d4SNico Weber #include <unistd.h>
10673dc3d4SNico Weber #include <stdio.h>
11673dc3d4SNico Weber #include <sanitizer/asan_interface.h>
12673dc3d4SNico Weber 
child()13673dc3d4SNico Weber __attribute__((noinline, no_sanitize("address"))) void child() {
14673dc3d4SNico Weber   alignas(8) char x[100000];
15673dc3d4SNico Weber   __asan_poison_memory_region(x, sizeof(x));
16673dc3d4SNico Weber   _exit(0);
17673dc3d4SNico Weber }
18673dc3d4SNico Weber 
parent()19673dc3d4SNico Weber __attribute__((noinline, no_sanitize("address"))) void parent() {
20673dc3d4SNico Weber   alignas(8) char x[100000];
21673dc3d4SNico Weber   assert(__asan_address_is_poisoned(x + 5000) == 0);
22673dc3d4SNico Weber }
23673dc3d4SNico Weber 
main(int argc,char ** argv)24673dc3d4SNico Weber int main(int argc, char **argv) {
25673dc3d4SNico Weber   if (vfork())
26673dc3d4SNico Weber     parent();
27673dc3d4SNico Weber   else
28673dc3d4SNico Weber     child();
29673dc3d4SNico Weber 
30673dc3d4SNico Weber   return 0;
31673dc3d4SNico Weber }
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