Commit f014a00b authored by Nathan Chancellor's avatar Nathan Chancellor Committed by Alexei Starovoitov
Browse files

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: default avatarNathan Chancellor <nathan@kernel.org>
Signed-off-by: default avatarKumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220304224645.3677453-6-memxor@gmail.com

[ Kartikeya: wrote commit message ]
parent 24d5bb80

include/linux/compiler-clang.h

+22 −0
Original line number Diff line number Diff line
@@ -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