| #ifndef __ASM_ALTERNATIVE_ASM_H | |
| #define __ASM_ALTERNATIVE_ASM_H | |
| #ifdef __ASSEMBLY__ | |
| .macro altinstruction_entry orig_offset alt_offset feature orig_len alt_len | |
| .word \orig_offset - . | |
| .word \alt_offset - . | |
| .hword \feature | |
| .byte \orig_len | |
| .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 */ |