1 #include <stdio.h> 2 #include <stdlib.h> 3 #include "tests/sys_mman.h" 4 5 int main(int argc, char **argv) 6 { 7 void *a1; 8 9 if ((a1 = mmap((void *)0x200000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0)) == MAP_FAILED) 10 { 11 perror("mmap1"); 12 exit(1); 13 } 14 15 if (munmap(a1, 4096) < 0) 16 { 17 perror("munmap1"); 18 exit(1); 19 } 20 21 if (mmap((void *)0x100000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) == MAP_FAILED) 22 { 23 perror("mmap2"); 24 exit(1); 25 } 26 27 if (mmap((void *)0x100000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) == MAP_FAILED) 28 { 29 perror("mmap2"); 30 exit(1); 31 } 32 33 printf("success\n"); 34 exit(0); 35 } 36
