diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2012-01-12 13:11:43 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2012-01-12 13:11:43 +0900 |
| commit | b1bdd255661369cb6eb90b6e181169b5e6d0f9b6 (patch) | |
| tree | 17d15f3a6dc5bdd6205070dbef0e339421b13d25 /include/linux/kernel.h | |
| parent | 9d14070f656addddce3d63fd483de46930b51850 (diff) | |
| parent | c1537b4863da620f12f5b42ece61bf65314148ed (diff) | |
Merge branch 'sh/nommu' into sh-latest
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index e8b1597b5cf2..f48e8a528544 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -665,6 +665,7 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { } #define BUILD_BUG_ON_ZERO(e) (0) #define BUILD_BUG_ON_NULL(e) ((void*)0) #define BUILD_BUG_ON(condition) +#define BUILD_BUG() (0) #else /* __CHECKER__ */ /* Force a compilation error if a constant expression is not a power of 2 */ @@ -703,6 +704,21 @@ extern int __build_bug_on_failed; if (condition) __build_bug_on_failed = 1; \ } while(0) #endif + +/** + * BUILD_BUG - break compile if used. + * + * If you have some code that you expect the compiler to eliminate at + * build time, you should use BUILD_BUG to detect if it is + * unexpectedly used. + */ +#define BUILD_BUG() \ + do { \ + extern void __build_bug_failed(void) \ + __linktime_error("BUILD_BUG failed"); \ + __build_bug_failed(); \ + } while (0) + #endif /* __CHECKER__ */ /* Trap pasters of __FUNCTION__ at compile-time */ |