| /* SPDX-License-Identifier: GPL-2.0+ */ | |
| /* | |
| * (C) 2017 Theobroma Systems Design und Consulting GmbH | |
| */ | |
| #include <config.h> | |
| #include <asm/assembler.h> | |
| #include <linux/linkage.h> | |
| .pushsection .text.setjmp, "ax" | |
| ENTRY(setjmp) | |
| /* | |
| * A subroutine must preserve the contents of the registers | |
| * r4-r8, r10, r11 (v1-v5, v7 and v8) and SP (and r9 in PCS | |
| * variants that designate r9 as v6). | |
| */ | |
| mov ip, sp | |
| stm a1, {v1-v8, ip, lr} | |
| mov a1, #0 | |
| ret lr | |
| ENDPROC(setjmp) | |
| .popsection | |
| .pushsection .text.longjmp, "ax" | |
| ENTRY(longjmp) | |
| ldm a1, {v1-v8, ip, lr} | |
| mov sp, ip | |
| mov a1, a2 | |
| /* If we were passed a return value of zero, return one instead */ | |
| cmp a1, #0 | |
| bne 1f | |
| mov a1, #1 | |
| 1: | |
| ret lr | |
| ENDPROC(longjmp) | |
| .popsection |