49 lines
833 B
C
49 lines
833 B
C
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/*
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#notarget: cris*-*-elf
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*/
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#define _GNU_SOURCE
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mman.h>
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int main (int argc, char *argv[])
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{
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int fd = open (argv[0], O_RDONLY);
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struct stat sb;
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int size;
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void *a;
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const char *str = "a string you'll only find in the program";
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if (fd == -1)
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{
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perror ("open");
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abort ();
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}
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if (fstat (fd, &sb) < 0)
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{
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perror ("fstat");
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abort ();
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}
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size = sb.st_size;
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/* We want to test mmapping a size that isn't exactly a page. */
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if ((size & 8191) == 0)
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size--;
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a = mmap (NULL, size, PROT_READ, MAP_SHARED, fd, 0);
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if (memmem (a, size, str, strlen (str) + 1) == NULL)
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abort ();
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printf ("pass\n");
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exit (0);
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}
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