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[/] [openrisc/] [tags/] [gnu-src/] [gdb-7.2/] [gdb-7.2-or32-1.0rc1/] [sim/] [testsuite/] [sim/] [cris/] [c/] [mmap5.c] - Rev 341
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/* #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; void *b; 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 = 8192; #ifdef MMAP_SIZE1 size = MMAP_SIZE1; #endif #ifndef MMAP_PROT1 #define MMAP_PROT1 PROT_READ | PROT_WRITE | PROT_EXEC #endif #ifndef MMAP_FLAGS1 #define MMAP_FLAGS1 MAP_PRIVATE | MAP_ANONYMOUS #endif /* Get a page, any page. */ b = mmap (NULL, size, MMAP_PROT1, MMAP_FLAGS1, -1, 0); if (b == MAP_FAILED) abort (); /* Remember it, unmap it. */ #ifndef NO_MUNMAP if (munmap (b, size) != 0) abort (); #endif #ifdef MMAP_ADDR2 b = MMAP_ADDR2; #endif #ifndef MMAP_PROT2 #define MMAP_PROT2 PROT_READ | PROT_EXEC #endif #ifndef MMAP_FLAGS2 #define MMAP_FLAGS2 MAP_DENYWRITE | MAP_FIXED | MAP_PRIVATE #endif size = sb.st_size; #ifdef MMAP_SIZE2 size = MMAP_SIZE2; #endif #define MMAP_TEST_BAD_ORIG \ (a == MAP_FAILED || memmem (a, size, str, strlen (str) + 1) == NULL) #ifndef MMAP_TEST_BAD #define MMAP_TEST_BAD MMAP_TEST_BAD_ORIG #endif /* Try mapping the now non-mapped page fixed. */ a = mmap (b, size, MMAP_PROT2, MMAP_FLAGS2, fd, 0); if (MMAP_TEST_BAD) abort (); printf ("pass\n"); exit (0); }