| /* 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 |
| bx 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: |
| bx lr |
| ENDPROC(longjmp) |
| .popsection |
