diff options
Diffstat (limited to 'include/linux/compiler_types.h')
| -rw-r--r-- | include/linux/compiler_types.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h index 981cc3d7e3aa..501cffddc2f4 100644 --- a/include/linux/compiler_types.h +++ b/include/linux/compiler_types.h @@ -57,7 +57,7 @@ static inline void __chk_io_ptr(const volatile void __iomem *ptr) { } # define __user BTF_TYPE_TAG(user) # endif # define __iomem -# define __percpu BTF_TYPE_TAG(percpu) +# define __percpu __percpu_qual BTF_TYPE_TAG(percpu) # define __rcu BTF_TYPE_TAG(rcu) # define __chk_user_ptr(x) (void)0 @@ -349,6 +349,18 @@ struct ftrace_likely_data { #endif /* + * Optional: only supported since gcc >= 15 + * Optional: not supported by Clang + * + * gcc: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117178 + */ +#ifdef CONFIG_CC_HAS_MULTIDIMENSIONAL_NONSTRING +# define __nonstring_array __attribute__((__nonstring__)) +#else +# define __nonstring_array +#endif + +/* * Apply __counted_by() when the Endianness matches to increase test coverage. */ #ifdef __LITTLE_ENDIAN @@ -360,7 +372,7 @@ struct ftrace_likely_data { #endif /* Do not trap wrapping arithmetic within an annotated function. */ -#ifdef CONFIG_UBSAN_SIGNED_WRAP +#ifdef CONFIG_UBSAN_INTEGER_WRAP # define __signed_wrap __attribute__((no_sanitize("signed-integer-overflow"))) #else # define __signed_wrap @@ -446,11 +458,14 @@ struct ftrace_likely_data { #define __member_size(p) __builtin_object_size(p, 1) #endif -/* Determine if an attribute has been applied to a variable. */ +/* + * Determine if an attribute has been applied to a variable. + * Using __annotated needs to check for __annotated being available, + * or negative tests may fail when annotation cannot be checked. For + * example, see the definition of __is_cstr(). + */ #if __has_builtin(__builtin_has_attribute) #define __annotated(var, attr) __builtin_has_attribute(var, attr) -#else -#define __annotated(var, attr) (false) #endif /* |