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5c026320 LC |
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 | ||
0f7fdd34 SW |
15 | #if defined(_WIN32) |
16 | # define QEMU_PACKED __attribute__((gcc_struct, packed)) | |
17 | #else | |
18 | # define QEMU_PACKED __attribute__((packed)) | |
19 | #endif | |
20 | ||
5c026320 LC |
21 | #define QEMU_BUILD_BUG_ON(x) \ |
22 | typedef char qemu_build_bug_on__##__LINE__[(x)?-1:1]; | |
23 | ||
24 | #if defined __GNUC__ | |
25 | # if (__GNUC__ < 4) || \ | |
26 | defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4) | |
27 | /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */ | |
28 | # define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2))) | |
29 | # define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m))) | |
30 | # else | |
31 | /* Use gnu_printf when supported (qemu uses standard format strings). */ | |
32 | # define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2))) | |
33 | # define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m))) | |
34 | # endif | |
35 | #else | |
36 | #define GCC_ATTR /**/ | |
37 | #define GCC_FMT_ATTR(n, m) | |
38 | #endif | |
39 | ||
40 | #endif /* COMPILER_H */ |