1 
2 /* Test for correct functioning of the --malloc-fill and --free-fill
3    flags.  Needs --malloc-fill=0x55 and --free-fill=0x77. */
4 
5 #include <stdio.h>
6 #include <assert.h>
7 #include <stdlib.h>
8 #include "../memcheck.h"
9 
10 int main ( void )
11 {
12   int *r, *oldr, *a;
13 
14 #define TEST(x, exp_x, desc) \
15   (void)VALGRIND_MAKE_MEM_DEFINED(&x, sizeof(int));     \
16   if (x == exp_x) { \
17      fprintf(stderr, "PASSED: " desc "\n"); \
18   } else { \
19      fprintf(stderr, "FAILED: " desc "\n"); \
20   }
21 
22   //-------------------------------------------------------------
23   fprintf(stderr, "test simple malloc/free:\n");
24 
25   a = malloc(10 * sizeof(int)); assert(a);
26   TEST(a[4], 0x55555555, "malloc-filled");
27 
28   free(a);
29   TEST(a[5], 0x77777777, "  free-filled");
30 
31   //-------------------------------------------------------------
32   fprintf(stderr, "\ntest realloc-larger:\n");
33 
34   r = malloc(30 * sizeof(int)); assert(r);
35   TEST(r[25], 0x55555555, "malloc-filled");
36 
37   /* Make larger */
38   oldr = r;
39   r = realloc(r, 40 * sizeof(int)); assert(r);
40 
41   TEST(oldr[26], 0x77777777, "  free-filled");
42   TEST(   r[35], 0x55555555, "malloc-filled");
43 
44   free(r);
45 
46   //-------------------------------------------------------------
47   fprintf(stderr, "\ntest realloc-smaller:\n");
48 
49   r = malloc(30 * sizeof(int)); assert(r);
50   TEST(r[25], 0x55555555,   "malloc-filled");
51 
52   /* Make smaller */
53   oldr = r;
54   r = realloc(r, 20 * sizeof(int)); assert(r);
55 
56   TEST(oldr[26], 0x77777777, "  free-filled");
57 
58   free(r);
59 
60   //-------------------------------------------------------------
61   fprintf(stderr, "\ntest calloc:\n");
62   a = calloc(100, sizeof(int)); assert(r);
63 
64   TEST(a[42], 0x00000000, "zero");
65 
66   free(a);
67 
68   return 0;
69 }
70