diff options
Diffstat (limited to 'include/linux/compiler-gcc.h')
| -rw-r--r-- | include/linux/compiler-gcc.h | 38 |
1 files changed, 5 insertions, 33 deletions
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index aff92b1d284f..c9b58188ec61 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ #ifndef __LINUX_COMPILER_TYPES_H -#error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead." +#error "Please do not include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead." #endif /* @@ -52,38 +52,6 @@ */ #define barrier_before_unreachable() asm volatile("") -/* - * Mark a position in code as unreachable. This can be used to - * suppress control flow warnings after asm blocks that transfer - * control elsewhere. - */ -#define unreachable() \ - do { \ - annotate_unreachable(); \ - barrier_before_unreachable(); \ - __builtin_unreachable(); \ - } while (0) - -/* - * GCC 'asm goto' with outputs miscompiles certain code sequences: - * - * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113921 - * - * Work around it via the same compiler barrier quirk that we used - * to use for the old 'asm goto' workaround. - * - * Also, always mark such 'asm goto' statements as volatile: all - * asm goto statements are supposed to be volatile as per the - * documentation, but some versions of gcc didn't actually do - * that for asms with outputs: - * - * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98619 - */ -#ifdef CONFIG_GCC_ASM_GOTO_OUTPUT_WORKAROUND -#define asm_goto_output(x...) \ - do { asm volatile goto(x); asm (""); } while (0) -#endif - #if defined(CONFIG_ARCH_USE_BUILTIN_BSWAP) #define __HAVE_BUILTIN_BSWAP32__ #define __HAVE_BUILTIN_BSWAP64__ @@ -100,7 +68,11 @@ #define __noscs __attribute__((__no_sanitize__("shadow-call-stack"))) #endif +#ifdef __SANITIZE_HWADDRESS__ +#define __no_sanitize_address __attribute__((__no_sanitize__("hwaddress"))) +#else #define __no_sanitize_address __attribute__((__no_sanitize_address__)) +#endif #if defined(__SANITIZE_THREAD__) #define __no_sanitize_thread __attribute__((__no_sanitize_thread__)) |