sewardj | 3b29048 | 2011-05-06 21:02:55 +0000 | [diff] [blame] | 1 | #include <stdlib.h> |
| 2 | #include <stdio.h> |
| 3 | #include <string.h> |
| 4 | |
| 5 | static void breakme(int line) |
| 6 | { |
| 7 | fprintf(stderr, "breakme function called from line %d\n", line); |
| 8 | fflush(stderr); |
| 9 | } |
| 10 | static char undefined[10] = "undefined"; |
| 11 | int main (int argc, char *argv[]) |
| 12 | { |
| 13 | |
| 14 | /* we will test |
| 15 | read watchpoint at 0, |
| 16 | read/write watchpoints at 4 |
| 17 | write watchpoints at 8 */ |
| 18 | |
| 19 | breakme(__LINE__); //break1 |
| 20 | |
| 21 | /* We verify read watchpoints are triggered at 0 and 4, not at 8 */ |
| 22 | fprintf(stderr, "before reading 0/4/8\n"); |
| 23 | if (undefined[0] == 'u') |
| 24 | fprintf(stderr, "u: Expected value at 0\n"); |
| 25 | else |
| 26 | fprintf(stderr, "u: Unexpected value at 0\n"); |
| 27 | |
| 28 | if (undefined[4] == 'f') |
| 29 | fprintf(stderr, "f: Expected value at 4\n"); |
| 30 | else |
| 31 | fprintf(stderr, "f: Unexpected value at 4\n"); |
| 32 | |
| 33 | if (undefined[8] == 'd') |
| 34 | fprintf(stderr, "d: Expected value at 8\n"); |
| 35 | else |
| 36 | fprintf(stderr, "d: Unexpected value at 8\n"); |
| 37 | |
| 38 | |
| 39 | /* We verify write watchpoints are triggered at 4 and 8, not at 0 */ |
| 40 | fprintf(stderr, "before writing 0\n"); |
| 41 | undefined[0] = 'U'; |
| 42 | |
| 43 | fprintf(stderr, "before writing 4\n"); |
| 44 | undefined[4] = 'F'; |
| 45 | |
| 46 | fprintf(stderr, "before writing 8\n"); |
| 47 | undefined[8] = 'D'; |
| 48 | |
| 49 | fprintf(stderr, "after writing 8\n"); |
| 50 | |
| 51 | /* after having remove the watchpoints, check we can read and write |
| 52 | without break. */ |
| 53 | fprintf(stderr, "value %s\n", undefined); |
| 54 | |
| 55 | fprintf(stderr, "before rewriting 0\n"); |
| 56 | undefined[0] = '0'; |
| 57 | |
| 58 | fprintf(stderr, "before rewriting 4\n"); |
| 59 | undefined[4] = '4'; |
| 60 | |
| 61 | fprintf(stderr, "before rewriting 8\n"); |
| 62 | undefined[8] = '8'; |
| 63 | |
| 64 | fprintf(stderr, "value %s\n", undefined); |
| 65 | |
philippe | 01a492e | 2013-07-30 20:26:06 +0000 | [diff] [blame] | 66 | { |
| 67 | char *k50 = malloc(50000); |
| 68 | memset (k50, 'p', 50000); |
| 69 | fprintf(stderr, "value of k50[1000] %c\n", k50[1000]); |
| 70 | free(k50); //break2 |
| 71 | } |
| 72 | |
sewardj | 3b29048 | 2011-05-06 21:02:55 +0000 | [diff] [blame] | 73 | exit(0); |
| 74 | } |