compiler-rt/test/sanitizer_common/TestCases/Linux/aligned_alloc-alignment.cpp

   1 // RUN: %clangxx %collect_stack_traces -O0 %s -o %t
   2
   3 // Alignment is not a power of 2:
   4 // RUN: %env_tool_opts=allocator_may_return_null=0 not %run %t 17 2>&1 | FileCheck %s
   5 // Size is not a multiple of alignment:
   6 // RUN: %env_tool_opts=allocator_may_return_null=0 not %run %t 8 2>&1 | FileCheck %s
   7 // Alignment is 0:
   8 // RUN: %env_tool_opts=allocator_may_return_null=0 not %run %t 0 2>&1 | FileCheck %s
   9
  10 // The same for allocator_may_return_null=1:
  11 // RUN: %env_tool_opts=allocator_may_return_null=1 %run %t 17 2>&1 | FileCheck %s --check-prefix=CHECK-NULL
  12 // RUN: %env_tool_opts=allocator_may_return_null=1 %run %t 8 2>&1 | FileCheck %s --check-prefix=CHECK-NULL
  13 // RUN: %env_tool_opts=allocator_may_return_null=1 %run %t 0 2>&1 | FileCheck %s --check-prefix=CHECK-NULL
  14
  15 // REQUIRES: stable-runtime
  16
  17 // UNSUPPORTED: android, ubsan
  18
  19 #include <assert.h>
  20 #include <errno.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23
  24 extern void *aligned_alloc(size_t alignment, size_t size);
  25
  26 int main(int argc, char **argv) {
  27   assert(argc == 2);
  28   const int alignment = atoi(argv[1]);
  29
  30   void *p = aligned_alloc(alignment, 100);
  31   // CHECK: {{ERROR: .*Sanitizer: invalid alignment requested in aligned_alloc}}
  32   // Handle a case when aligned_alloc is aliased by memalign.
  33   // CHECK: {{#0 .*}}{{aligned_alloc|memalign}}
  34   // CHECK: {{#[12] .*main .*aligned_alloc-alignment.cpp:}}[[@LINE-4]]
  35   // CHECK: {{SUMMARY: .*Sanitizer: invalid-aligned-alloc-alignment}}
  36
  37   // The NULL pointer is printed differently on different systems, while (long)0
  38   // is always the same.
  39   fprintf(stderr, "errno: %d, p: %lx\n", errno, (long)p);
  40   // CHECK-NULL: errno: 22, p: 0
  41
  42   return 0;
  43 }