1/* SPDX-License-Identifier: GPL-2.0+ */ 2/* 3 * (C) 2017 Theobroma Systems Design und Consulting GmbH 4 */ 5 6#include <config.h> 7#include <asm/assembler.h> 8#include <linux/linkage.h> 9 10.pushsection .text.setjmp, "ax" 11ENTRY(setjmp) 12 /* 13 * A subroutine must preserve the contents of the registers 14 * r4-r8, r10, r11 (v1-v5, v7 and v8) and SP (and r9 in PCS 15 * variants that designate r9 as v6). 16 */ 17 mov ip, sp 18 stm a1, {v1-v8, ip, lr} 19 mov a1, #0 20 bx lr 21ENDPROC(setjmp) 22.popsection 23 24.pushsection .text.longjmp, "ax" 25ENTRY(longjmp) 26 ldm a1, {v1-v8, ip, lr} 27 mov sp, ip 28 mov a1, a2 29 /* If we were passed a return value of zero, return one instead */ 30 cmp a1, #0 31 bne 1f 32 mov a1, #1 331: 34 bx lr 35ENDPROC(longjmp) 36.popsection 37