diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/objtool.h | 18 | ||||
| -rw-r--r-- | include/linux/objtool_types.h | 1 |
2 files changed, 8 insertions, 11 deletions
diff --git a/include/linux/objtool.h b/include/linux/objtool.h index fd487d466bb2..e3cb13583fba 100644 --- a/include/linux/objtool.h +++ b/include/linux/objtool.h @@ -111,14 +111,6 @@ #endif .endm - -.macro REACHABLE -.Lhere_\@: - .pushsection .discard.reachable - .long .Lhere_\@ - .popsection -.endm - .macro ANNOTATE type:req .Lhere_\@: .pushsection .discard.annotate_insn,"M",@progbits,8 @@ -138,14 +130,11 @@ #define STACK_FRAME_NON_STANDARD_FP(func) #define __ASM_ANNOTATE(label, type) #define ASM_ANNOTATE(type) -#define ASM_REACHABLE #else .macro UNWIND_HINT type:req sp_reg=0 sp_offset=0 signal=0 .endm .macro STACK_FRAME_NON_STANDARD func:req .endm -.macro REACHABLE -.endm .macro ANNOTATE type:req .endm #endif @@ -187,6 +176,12 @@ * it will be ignored. */ #define ANNOTATE_UNRET_BEGIN ASM_ANNOTATE(ANNOTYPE_UNRET_BEGIN) +/* + * This should be used directly after an instruction that is considered + * terminating, like a noreturn CALL or UD2 when we know they are not -- eg + * WARN using UD2. + */ +#define ANNOTATE_REACHABLE ASM_ANNOTATE(ANNOTYPE_REACHABLE) #else #define ANNOTATE_NOENDBR ANNOTATE type=ANNOTYPE_NOENDBR @@ -196,6 +191,7 @@ #define ANNOTATE_IGNORE_ALTERNATIVE ANNOTATE type=ANNOTYPE_IGNORE_ALTS #define ANNOTATE_INTRA_FUNCTION_CALL ANNOTATE type=ANNOTYPE_INTRA_FUNCTION_CALL #define ANNOTATE_UNRET_BEGIN ANNOTATE type=ANNOTYPE_UNRET_BEGIN +#define ANNOTATE_REACHABLE ANNOTATE type=ANNOTYPE_REACHABLE #endif #if defined(CONFIG_NOINSTR_VALIDATION) && \ diff --git a/include/linux/objtool_types.h b/include/linux/objtool_types.h index 23d6fb6d04c7..df5d9fa84dba 100644 --- a/include/linux/objtool_types.h +++ b/include/linux/objtool_types.h @@ -64,5 +64,6 @@ struct unwind_hint { #define ANNOTYPE_UNRET_BEGIN 5 #define ANNOTYPE_IGNORE_ALTS 6 #define ANNOTYPE_INTRA_FUNCTION_CALL 7 +#define ANNOTYPE_REACHABLE 8 #endif /* _LINUX_OBJTOOL_TYPES_H */ |