Commit ae596de1 authored by Miguel Ojeda's avatar Miguel Ojeda Committed by Greg Kroah-Hartman

Compiler Attributes: naked can be shared

The naked attribute is supported by at least gcc >= 4.6 (for ARM,
which is the only current user), gcc >= 8 (for x86), clang >= 3.1
and icc >= 13. See https://godbolt.org/z/350Dyc

Therefore, move it out of compiler-gcc.h so that the definition
is shared by all compilers.

This also fixes Clang support for ARM32 --- 815f0ddb
("include/linux/compiler*.h: make compiler-*.h mutually exclusive").

Fixes: 815f0ddb ("include/linux/compiler*.h: make compiler-*.h mutually exclusive")
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Eli Friedman <efriedma@codeaurora.org>
Cc: Christopher Li <sparse@chrisli.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Joe Perches <joe@perches.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-sparse@vger.kernel.org
Suggested-by: default avatarArnd Bergmann <arnd@arndb.de>
Tested-by: default avatarStefan Agner <stefan@agner.ch>
Reviewed-by: default avatarStefan Agner <stefan@agner.ch>
Reviewed-by: default avatarLuc Van Oostenryck <luc.vanoostenryck@gmail.com>
Reviewed-by: default avatarNick Desaulniers <ndesaulniers@google.com>
Signed-off-by: default avatarMiguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d124b44f
...@@ -79,14 +79,6 @@ ...@@ -79,14 +79,6 @@
#define __noretpoline __attribute__((indirect_branch("keep"))) #define __noretpoline __attribute__((indirect_branch("keep")))
#endif #endif
/*
* it doesn't make sense on ARM (currently the only user of __naked)
* to trace naked functions because then mcount is called without
* stack and frame pointer being set up and there is no chance to
* restore the lr register to the value before mcount was called.
*/
#define __naked __attribute__((naked)) notrace
#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
#define __optimize(level) __attribute__((__optimize__(level))) #define __optimize(level) __attribute__((__optimize__(level)))
......
...@@ -226,6 +226,14 @@ struct ftrace_likely_data { ...@@ -226,6 +226,14 @@ struct ftrace_likely_data {
#define notrace __attribute__((no_instrument_function)) #define notrace __attribute__((no_instrument_function))
#endif #endif
/*
* it doesn't make sense on ARM (currently the only user of __naked)
* to trace naked functions because then mcount is called without
* stack and frame pointer being set up and there is no chance to
* restore the lr register to the value before mcount was called.
*/
#define __naked __attribute__((naked)) notrace
#define __compiler_offsetof(a, b) __builtin_offsetof(a, b) #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
/* /*
......
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