memcheck/tests/clireq_nofill.c

   1 #include <string.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <assert.h>
   5 #include "valgrind.h"
   6 #include "../memcheck.h"
   7
   8 struct super { int x; };
   9 static struct super superblock = { 12345 };
  10
  11 /* run with `valgrind -q --malloc-fill=0xaf --free-fill=0xdb` */
  12 int main(int argc, char **argv)
  13 {
  14     unsigned char *s;
  15     VALGRIND_CREATE_MEMPOOL(&superblock, /*rzB=*/0, /*is_zeroed=*/0);
  16     s = malloc(40);
  17     assert(s);
  18     assert(*s == 0xaf);
  19     *s = 0x05;
  20     VALGRIND_MEMPOOL_ALLOC(&superblock, s, 40);
  21     printf("*s=%#hhx after MEMPOOL_ALLOC\n", *s);
  22     VALGRIND_MEMPOOL_FREE(&superblock, s);
  23     printf("*s=%#hhx after MEMPOOL_FREE\n", *s);
  24     VALGRIND_MEMPOOL_ALLOC(&superblock, s, 40);
  25     printf("*s=%#hhx after second MEMPOOL_ALLOC\n", *s);
  26     free(s);
  27     VALGRIND_DESTROY_MEMPOOL(&superblock);
  28
  29     s = malloc(40);
  30     assert(s);
  31     assert(*s == 0xaf);
  32     *s = 0x05;
  33     VALGRIND_MALLOCLIKE_BLOCK(s, 40, 0/*rzB*/, 0/*is_zeroed*/);
  34     printf("*s=%#hhx after MALLOCLIKE_BLOCK\n", *s);
  35     VALGRIND_FREELIKE_BLOCK(s, 0/*rzB*/);
  36     printf("*s=%#hhx after FREELIKE_BLOCK\n", *s);
  37     VALGRIND_MALLOCLIKE_BLOCK(s, 40, 0/*rzB*/, 0/*is_zeroed*/);
  38     printf("*s=%#hhx after second MALLOCLIKE_BLOCK\n", *s);
  39
  40     return 0;
  41 }
  42