test/asan/TestCases/Posix/posix_memalign-alignment.cc


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

// RUN: %clangxx_asan -O0 %s -o %t
// RUN: %env_asan_opts=allocator_may_return_null=0 not %run %t 2>&1 | FileCheck %s
// RUN: %env_asan_opts=allocator_may_return_null=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-NULL

// REQUIRES: stable-runtime

#include <stdio.h>
#include <stdlib.h>

int main() {
  void *p = reinterpret_cast<void*>(42);
  int res = posix_memalign(&p, 17, 100);
  // CHECK: ERROR: AddressSanitizer: invalid alignment requested in posix_memalign: 17
  // CHECK: {{#0 0x.* in .*posix_memalign}}
  // CHECK: {{#1 0x.* in main .*posix_memalign-alignment.cc:}}[[@LINE-3]]
  // CHECK: SUMMARY: AddressSanitizer: invalid-posix-memalign-alignment

  printf("pointer after failed posix_memalign: %zd\n", (size_t)p);
  // CHECK-NULL: pointer after failed posix_memalign: 42

  return 0;
}