qemu/tests/tcg/cris/check_mmap3.c
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   1/*
   2#notarget: cris*-*-elf
   3*/
   4
   5#define _GNU_SOURCE
   6#include <string.h>
   7#include <stdlib.h>
   8#include <stdio.h>
   9#include <sys/types.h>
  10#include <sys/stat.h>
  11#include <unistd.h>
  12#include <sys/mman.h>
  13
  14int main (int argc, char *argv[])
  15{
  16  volatile unsigned char *a;
  17
  18  /* Check that we can map a non-multiple of a page and still get a full page.  */
  19  a = mmap (NULL, 0x4c, PROT_READ | PROT_WRITE | PROT_EXEC,
  20            MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
  21  if (a == NULL || a == (unsigned char *) -1)
  22    abort ();
  23
  24  a[0] = 0xbe;
  25  a[8191] = 0xef;
  26  memset ((char *) a + 1, 0, 8190);
  27
  28  if (a[0] != 0xbe || a[8191] != 0xef)
  29    abort ();
  30
  31  printf ("pass\n");
  32  exit (0);
  33}
  34