diff options
| author | Marco Elver <elver@google.com> | 2020-05-21 16:20:46 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 20:04:04 +0200 |
| commit | eb73876c74313231c35cee6310f8ad62c56fa2b3 (patch) | |
| tree | 38e7e0b5d62ab92b9dfc03e2f2c135fe06cf400e /include/linux/compiler_types.h | |
| parent | 95c094fccb85422eff3c12930ebebbda9278f76b (diff) | |
compiler.h: Move function attributes to compiler_types.h
Cleanup and move the KASAN and KCSAN related function attributes to
compiler_types.h, where the rest of the same kind live.
No functional change intended.
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20200521142047.169334-11-elver@google.com
Diffstat (limited to 'include/linux/compiler_types.h')
| -rw-r--r-- | include/linux/compiler_types.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h index d4e1956f903f..725cec6f56ea 100644 --- a/include/linux/compiler_types.h +++ b/include/linux/compiler_types.h @@ -171,6 +171,35 @@ struct ftrace_likely_data { */ #define noinline_for_stack noinline +#ifdef CONFIG_KASAN +/* + * We can't declare function 'inline' because __no_sanitize_address conflicts + * with inlining. Attempt to inline it may cause a build failure. + * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368 + * '__maybe_unused' allows us to avoid defined-but-not-used warnings. + */ +# define __no_kasan_or_inline __no_sanitize_address notrace __maybe_unused +# define __no_sanitize_or_inline __no_kasan_or_inline +#else +# define __no_kasan_or_inline __always_inline +#endif + +#define __no_kcsan __no_sanitize_thread +#ifdef __SANITIZE_THREAD__ +/* + * Rely on __SANITIZE_THREAD__ instead of CONFIG_KCSAN, to avoid not inlining in + * compilation units where instrumentation is disabled. + */ +# define __no_kcsan_or_inline __no_kcsan notrace __maybe_unused +# define __no_sanitize_or_inline __no_kcsan_or_inline +#else +# define __no_kcsan_or_inline __always_inline +#endif + +#ifndef __no_sanitize_or_inline +#define __no_sanitize_or_inline __always_inline +#endif + #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ |