diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-12 16:09:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-12 16:09:26 -0700 |
| commit | c3e46874dfb9a2ef08085bb147dc371e72738673 (patch) | |
| tree | bef2b1c2aa18123cf30875fa2c4ae2a6ed413bc0 /include/linux/compiler_attributes.h | |
| parent | d41adc4e22c62640fa7de93f713a3c5b3638ab2e (diff) | |
| parent | b83a908498d68fafca931e1276e145b339cac5fb (diff) | |
Merge tag 'compiler-attributes-for-linus-v5.15-rc1-v2' of git://github.com/ojeda/linux
Pull compiler attributes updates from Miguel Ojeda:
- Fix __has_attribute(__no_sanitize_coverage__) for GCC 4 (Marco Elver)
- Add Nick as Reviewer for compiler_attributes.h (Nick Desaulniers)
- Move __compiletime_{error|warning} (Nick Desaulniers)
* tag 'compiler-attributes-for-linus-v5.15-rc1-v2' of git://github.com/ojeda/linux:
compiler_attributes.h: move __compiletime_{error|warning}
MAINTAINERS: add Nick as Reviewer for compiler_attributes.h
Compiler Attributes: fix __has_attribute(__no_sanitize_coverage__) for GCC 4
Diffstat (limited to 'include/linux/compiler_attributes.h')
| -rw-r--r-- | include/linux/compiler_attributes.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/compiler_attributes.h b/include/linux/compiler_attributes.h index 2487be0e7199..8f2106e9e5c1 100644 --- a/include/linux/compiler_attributes.h +++ b/include/linux/compiler_attributes.h @@ -30,6 +30,7 @@ # define __GCC4_has_attribute___assume_aligned__ 1 # define __GCC4_has_attribute___copy__ 0 # define __GCC4_has_attribute___designated_init__ 0 +# define __GCC4_has_attribute___error__ 1 # define __GCC4_has_attribute___externally_visible__ 1 # define __GCC4_has_attribute___no_caller_saved_registers__ 0 # define __GCC4_has_attribute___noclone__ 1 @@ -37,7 +38,9 @@ # define __GCC4_has_attribute___nonstring__ 0 # define __GCC4_has_attribute___no_sanitize_address__ 1 # define __GCC4_has_attribute___no_sanitize_undefined__ 1 +# define __GCC4_has_attribute___no_sanitize_coverage__ 0 # define __GCC4_has_attribute___fallthrough__ 0 +# define __GCC4_has_attribute___warning__ 1 #endif /* @@ -138,6 +141,17 @@ #endif /* + * Optional: only supported since clang >= 14.0 + * + * gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-error-function-attribute + */ +#if __has_attribute(__error__) +# define __compiletime_error(msg) __attribute__((__error__(msg))) +#else +# define __compiletime_error(msg) +#endif + +/* * Optional: not supported by clang * * gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-externally_005fvisible-function-attribute @@ -299,6 +313,17 @@ #define __must_check __attribute__((__warn_unused_result__)) /* + * Optional: only supported since clang >= 14.0 + * + * gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-warning-function-attribute + */ +#if __has_attribute(__warning__) +# define __compiletime_warning(msg) __attribute__((__warning__(msg))) +#else +# define __compiletime_warning(msg) +#endif + +/* * gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-weak-function-attribute * gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html#index-weak-variable-attribute */ |