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| author | Nathan Chancellor <nathan@kernel.org> | 2022-03-05 01:46:42 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-03-06 02:29:36 +0300 |
| commit | f014a00bbeb09cea16017b82448d32a468a6b96f (patch) | |
| tree | 2008d36f755472ce76dd3ef7ae72914d71e3c408 /include/linux/compiler-clang.h | |
| parent | 24d5bb806c7e2c0b9972564fd493069f612d90dd (diff) | |
| download | linux-f014a00bbeb09cea16017b82448d32a468a6b96f.tar.xz | |
compiler-clang.h: Add __diag infrastructure for clang
Add __diag macros similar to those in compiler-gcc.h, so that warnings
that need to be adjusted for specific cases but not globally can be
ignored when building with clang.
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220304224645.3677453-6-memxor@gmail.com
[ Kartikeya: wrote commit message ]
Diffstat (limited to 'include/linux/compiler-clang.h')
| -rw-r--r-- | include/linux/compiler-clang.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h index 3c4de9b6c6e3..f1aa41d520bd 100644 --- a/include/linux/compiler-clang.h +++ b/include/linux/compiler-clang.h @@ -68,3 +68,25 @@ #define __nocfi __attribute__((__no_sanitize__("cfi"))) #define __cficanonical __attribute__((__cfi_canonical_jump_table__)) + +/* + * Turn individual warnings and errors on and off locally, depending + * on version. + */ +#define __diag_clang(version, severity, s) \ + __diag_clang_ ## version(__diag_clang_ ## severity s) + +/* Severity used in pragma directives */ +#define __diag_clang_ignore ignored +#define __diag_clang_warn warning +#define __diag_clang_error error + +#define __diag_str1(s) #s +#define __diag_str(s) __diag_str1(s) +#define __diag(s) _Pragma(__diag_str(clang diagnostic s)) + +#if CONFIG_CLANG_VERSION >= 110000 +#define __diag_clang_11(s) __diag(s) +#else +#define __diag_clang_11(s) +#endif |