| Jens Axboe | 4fee809 | 2007-03-29 09:33:03 +0200 | [diff] [blame] | 1 | #ifndef FIO_COMPILER_H |
| 2 | #define FIO_COMPILER_H |
| 3 | |
| 4 | #if __GNUC__ >= 4 |
| 5 | #include "compiler-gcc4.h" |
| Jens Axboe | 73e07ac | 2007-03-29 09:33:46 +0200 | [diff] [blame] | 6 | #elif __GNUC__ == 3 |
| Jens Axboe | 4fee809 | 2007-03-29 09:33:03 +0200 | [diff] [blame] | 7 | #include "compiler-gcc3.h" |
| 8 | #else |
| 9 | #error Compiler too old, need gcc at least gcc 3.x |
| 10 | #endif |
| 11 | |
| Jens Axboe | 993cca0 | 2007-03-29 09:35:35 +0200 | [diff] [blame] | 12 | #ifndef __must_check |
| 13 | #define __must_check |
| 14 | #endif |
| 15 | |
| Jens Axboe | 7b4203d | 2013-04-17 19:29:37 +0200 | [diff] [blame] | 16 | /* |
| 17 | * Mark unused variables passed to ops functions as unused, to silence gcc |
| 18 | */ |
| 19 | #define fio_unused __attribute__((__unused__)) |
| 20 | #define fio_init __attribute__((constructor)) |
| 21 | #define fio_exit __attribute__((destructor)) |
| 22 | |
| Jens Axboe | 225ba9e | 2014-02-26 14:31:15 -0800 | [diff] [blame^] | 23 | #define fio_unlikely(x) __builtin_expect(!!(x), 0) |
| 24 | |
| Jens Axboe | 4fee809 | 2007-03-29 09:33:03 +0200 | [diff] [blame] | 25 | #endif |