| Luiz Capitulino | 5c02632 | 2011-07-11 14:24:44 -0300 | [diff] [blame] | 1 | /* public domain */ |
| 2 | |
| 3 | #ifndef COMPILER_H |
| 4 | #define COMPILER_H |
| 5 | |
| 6 | #include "config-host.h" |
| 7 | |
| 8 | #define QEMU_NORETURN __attribute__ ((__noreturn__)) |
| 9 | #ifdef CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT |
| 10 | #define QEMU_WARN_UNUSED_RESULT __attribute__((warn_unused_result)) |
| 11 | #else |
| 12 | #define QEMU_WARN_UNUSED_RESULT |
| 13 | #endif |
| 14 | |
| 15 | #define QEMU_BUILD_BUG_ON(x) \ |
| 16 | typedef char qemu_build_bug_on__##__LINE__[(x)?-1:1]; |
| 17 | |
| 18 | #if defined __GNUC__ |
| 19 | # if (__GNUC__ < 4) || \ |
| 20 | defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4) |
| 21 | /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */ |
| 22 | # define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2))) |
| 23 | # define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m))) |
| 24 | # else |
| 25 | /* Use gnu_printf when supported (qemu uses standard format strings). */ |
| 26 | # define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2))) |
| 27 | # define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m))) |
| 28 | # endif |
| 29 | #else |
| 30 | #define GCC_ATTR /**/ |
| 31 | #define GCC_FMT_ATTR(n, m) |
| 32 | #endif |
| 33 | |
| 34 | #endif /* COMPILER_H */ |