compiler-rt/test/hwasan/TestCases/Posix/posix_memalign-alignment.cpp

   1 // RUN: %clangxx_hwasan -O0 %s -o %t
   2 // RUN: %env_hwasan_opts=allocator_may_return_null=0 not %run %t 2>&1 | FileCheck %s
   3 // RUN: %env_hwasan_opts=allocator_may_return_null=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-NULL
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7
   8 int main() {
   9   void *p = reinterpret_cast<void*>(42);
  10   int res = posix_memalign(&p, 17, 100);
  11   // CHECK: ERROR: HWAddressSanitizer: invalid alignment requested in posix_memalign: 17
  12   // CHECK: {{#0 0x.* in .*posix_memalign}}
  13   // CHECK: {{#1 0x.* in main .*posix_memalign-alignment.cpp:}}[[@LINE-3]]
  14   // CHECK: SUMMARY: HWAddressSanitizer: invalid-posix-memalign-alignment {{.*}} in main
  15
  16   printf("pointer after failed posix_memalign: %zd\n", (size_t)p);
  17   // CHECK-NULL: pointer after failed posix_memalign: 42
  18
  19   return 0;
  20 }