compiler-rt/test/asan/TestCases/longjmp.cpp

   1 // RUN: %clangxx_asan -fsanitize-address-use-after-return=never -O %s -o %t && %run %t
   2
   3 #include <assert.h>
   4 #include <setjmp.h>
   5 #include <stdio.h>
   6 #include <sanitizer/asan_interface.h>
   7
   8 static jmp_buf buf;
   9
  10 int main() {
  11   char x[32];
  12   fprintf(stderr, "\nTestLongJmp\n");
  13   fprintf(stderr, "Before: %p poisoned: %d\n", &x,
  14           __asan_address_is_poisoned(x + 32));
  15   assert(__asan_address_is_poisoned(x + 32));
  16   if (0 == setjmp(buf))
  17     longjmp(buf, 1);
  18   fprintf(stderr, "After:  %p poisoned: %d\n",  &x,
  19           __asan_address_is_poisoned(x + 32));
  20   assert(!__asan_address_is_poisoned(x + 32));
  21 }