diff options
Diffstat (limited to 'tests/cris/check_mmap2.c')
-rw-r--r-- | tests/cris/check_mmap2.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/tests/cris/check_mmap2.c b/tests/cris/check_mmap2.c new file mode 100644 index 0000000000..35139a0ed9 --- /dev/null +++ b/tests/cris/check_mmap2.c @@ -0,0 +1,48 @@ +/* +#notarget: cris*-*-elf +*/ + +#define _GNU_SOURCE +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/mman.h> + +int main (int argc, char *argv[]) +{ + int fd = open (argv[0], O_RDONLY); + struct stat sb; + int size; + void *a; + const char *str = "a string you'll only find in the program"; + + if (fd == -1) + { + perror ("open"); + abort (); + } + + if (fstat (fd, &sb) < 0) + { + perror ("fstat"); + abort (); + } + + size = sb.st_size; + + /* We want to test mmapping a size that isn't exactly a page. */ + if ((size & 8191) == 0) + size--; + + a = mmap (NULL, size, PROT_READ, MAP_SHARED, fd, 0); + + if (memmem (a, size, str, strlen (str) + 1) == NULL) + abort (); + + printf ("pass\n"); + exit (0); +} |