diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/compiler.h | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 7be80897a62f..3d9a0e483e51 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -109,35 +109,9 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val, /* Unreachable code */ #ifdef CONFIG_OBJTOOL -/* - * These macros help objtool understand GCC code flow for unreachable code. - * The __COUNTER__ based labels are a hack to make each instance of the macros - * unique, to convince GCC not to merge duplicate inline asm statements. - */ -#define __stringify_label(n) #n - -#define __annotate_reachable(c) ({ \ - asm volatile(__stringify_label(c) ":\n\t" \ - ".pushsection .discard.reachable\n\t" \ - ".long " __stringify_label(c) "b - .\n\t" \ - ".popsection\n\t"); \ -}) -#define annotate_reachable() __annotate_reachable(__COUNTER__) - -#define __annotate_unreachable(c) ({ \ - asm volatile(__stringify_label(c) ":\n\t" \ - ".pushsection .discard.unreachable\n\t" \ - ".long " __stringify_label(c) "b - .\n\t" \ - ".popsection\n\t" : : "i" (c)); \ -}) -#define annotate_unreachable() __annotate_unreachable(__COUNTER__) - /* Annotate a C jump table to allow objtool to follow the code flow */ #define __annotate_jump_table __section(".rodata..c_jump_table,\"a\",@progbits #") - #else /* !CONFIG_OBJTOOL */ -#define annotate_reachable() -#define annotate_unreachable() #define __annotate_jump_table #endif /* CONFIG_OBJTOOL */ @@ -147,7 +121,6 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val, * control elsewhere. */ #define unreachable() do { \ - annotate_unreachable(); \ barrier_before_unreachable(); \ __builtin_unreachable(); \ } while (0) |