memcheck/tests/x86-linux/bug133694.c

   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 }