diff options
Diffstat (limited to 'include/linux/compiler-gcc.h')
| -rw-r--r-- | include/linux/compiler-gcc.h | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index 0efef9cf014f..cd4bbe8242bd 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -66,18 +66,22 @@ /* * Force always-inline if the user requests it so via the .config, - * or if gcc is too old: + * or if gcc is too old. + * GCC does not warn about unused static inline functions for + * -Wunused-function. This turns out to avoid the need for complex #ifdef + * directives. Suppress the warning in clang as well by using "unused" + * function attribute, which is redundant but not harmful for gcc. */ #if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \ !defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4) -#define inline inline __attribute__((always_inline)) notrace -#define __inline__ __inline__ __attribute__((always_inline)) notrace -#define __inline __inline __attribute__((always_inline)) notrace +#define inline inline __attribute__((always_inline,unused)) notrace +#define __inline__ __inline__ __attribute__((always_inline,unused)) notrace +#define __inline __inline __attribute__((always_inline,unused)) notrace #else /* A lot of inline functions can cause havoc with function tracing */ -#define inline inline notrace -#define __inline__ __inline__ notrace -#define __inline __inline notrace +#define inline inline __attribute__((unused)) notrace +#define __inline__ __inline__ __attribute__((unused)) notrace +#define __inline __inline __attribute__((unused)) notrace #endif #define __always_inline inline __attribute__((always_inline)) @@ -223,6 +227,11 @@ /* Mark a function definition as prohibited from being cloned. */ #define __noclone __attribute__((__noclone__, __optimize__("no-tracer"))) +#ifdef RANDSTRUCT_PLUGIN +#define __randomize_layout __attribute__((randomize_layout)) +#define __no_randomize_layout __attribute__((no_randomize_layout)) +#endif + #endif /* GCC_VERSION >= 40500 */ #if GCC_VERSION >= 40600 @@ -294,6 +303,14 @@ #define __no_sanitize_address __attribute__((no_sanitize_address)) #endif +#if GCC_VERSION >= 50100 +/* + * Mark structures as requiring designated initializers. + * https://gcc.gnu.org/onlinedocs/gcc/Designated-Inits.html + */ +#define __designated_init __attribute__((designated_init)) +#endif + #endif /* gcc version >= 40000 specific checks */ #if !defined(__noclone) |