| #include <stdio.h> |
| #include "tests/sys_mman.h" |
| #include <stdlib.h> |
| #include <unistd.h> |
| |
| int main() |
| { |
| |
| void *first = NULL; |
| void *last; |
| void *res; |
| |
| while (1) { |
| res = mmap (NULL, 64 * 1024, |
| PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_32BIT, |
| -1, 0); |
| if (first == NULL) { |
| first = res; |
| if (first == (void *)-1) { |
| perror ("first mmap"); |
| exit (1); |
| } |
| fprintf(stderr, "first mmap : %p\n", first); |
| } |
| if (res == (void *)-1) { |
| fprintf(stderr, "last mmap ok: %p\n", last); |
| break; |
| } |
| last = res; |
| } |
| |
| /* And now, retry without MAP_32BIT */ |
| res = mmap (NULL, 64 * 1024, |
| PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, |
| -1, 0); |
| if (res == (void *)-1) { |
| perror ("retry mmap"); |
| exit (1); |
| } |
| fprintf(stderr, "retry mmap ok: %p\n", res); |
| |
| return 0; |
| } |