sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
njn | 83b62cb | 2009-04-15 03:12:43 +0000 | [diff] [blame] | 3 | #include "tests/sys_mman.h" |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 4 | |
| 5 | int main(int argc, char **argv) |
| 6 | { |
njn | 9105a3e | 2009-03-16 04:29:12 +0000 | [diff] [blame] | 7 | void *p1; |
| 8 | void *p2; |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 9 | |
njn | 9105a3e | 2009-03-16 04:29:12 +0000 | [diff] [blame] | 10 | if ( ( p1 = mmap( 0, 4096, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0 ) ) == MAP_FAILED ) |
| 11 | { |
| 12 | perror( "aligned mmap failed" ); |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 13 | exit( 1 ); |
njn | 9105a3e | 2009-03-16 04:29:12 +0000 | [diff] [blame] | 14 | } |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 15 | |
njn | 9105a3e | 2009-03-16 04:29:12 +0000 | [diff] [blame] | 16 | if ( munmap( p1, 4096 ) != 0 ) |
| 17 | { |
| 18 | perror( "aligned munmap failed" ); |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 19 | exit( 1 ); |
njn | 9105a3e | 2009-03-16 04:29:12 +0000 | [diff] [blame] | 20 | } |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 21 | |
njn | 9105a3e | 2009-03-16 04:29:12 +0000 | [diff] [blame] | 22 | // This fails because MAP_FIXED is specified and p1+1 isn't page-aligned. |
| 23 | // (On Linux, just non-page-alignment is enough for failure, but on Darwin |
| 24 | // MAP_FIXED has to also be specified.) |
| 25 | if ( ( p2 = mmap( p1 + 1, 4096, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0 ) ) == MAP_FAILED ) |
| 26 | { |
| 27 | perror( "unaligned mmap failed" ); |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 28 | exit( 1 ); |
njn | 9105a3e | 2009-03-16 04:29:12 +0000 | [diff] [blame] | 29 | } |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 30 | |
njn | 9105a3e | 2009-03-16 04:29:12 +0000 | [diff] [blame] | 31 | if ( munmap( p2, 4096 ) != 0 ) |
| 32 | { |
| 33 | perror( "unaligned munmap failed" ); |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 34 | exit( 1 ); |
njn | 9105a3e | 2009-03-16 04:29:12 +0000 | [diff] [blame] | 35 | } |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 36 | |
njn | 9105a3e | 2009-03-16 04:29:12 +0000 | [diff] [blame] | 37 | exit( 0 ); |
sewardj | cbdddcf | 2005-03-10 23:23:45 +0000 | [diff] [blame] | 38 | } |