diff options
Diffstat (limited to 'arch/arm64/include/asm/alternative-asm.h')
| -rw-r--r-- | arch/arm64/include/asm/alternative-asm.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/alternative-asm.h b/arch/arm64/include/asm/alternative-asm.h index 5ee9340..919a678 100644 --- a/arch/arm64/include/asm/alternative-asm.h +++ b/arch/arm64/include/asm/alternative-asm.h @@ -11,6 +11,19 @@ .byte \alt_len .endm +.macro alternative_insn insn1 insn2 cap +661: \insn1 +662: .pushsection .altinstructions, "a" + altinstruction_entry 661b, 663f, \cap, 662b-661b, 664f-663f + .popsection + .pushsection .altinstr_replacement, "ax" +663: \insn2 +664: .popsection + .if ((664b-663b) != (662b-661b)) + .error "Alternatives instruction length mismatch" + .endif +.endm + #endif /* __ASSEMBLY__ */ #endif /* __ASM_ALTERNATIVE_ASM_H */ |