1*ea952cb8Sskrll/* $NetBSD: __setjmp14.S,v 1.2 2023/10/11 09:12:21 skrll Exp $ */ 227620987Smatt 327620987Smatt#include "SYS.h" 427620987Smatt#include "assym.h" 527620987Smatt 627620987Smatt#if defined(LIBC_SCCS) 7*ea952cb8Sskrll__RCSID("$NetBSD: __setjmp14.S,v 1.2 2023/10/11 09:12:21 skrll Exp $") 827620987Smatt#endif 927620987Smatt 1027620987Smatt/* 1127620987Smatt * C library -- _setjmp, _longjmp 1227620987Smatt * 1327620987Smatt * longjmp(a,v) 1427620987Smatt * will generate a "return(v?v:1)" from the last call to 1527620987Smatt * setjmp(a) 1627620987Smatt * by restoring registers from the stack. 1727620987Smatt * The previous signal state is restored. 1827620987Smatt */ 1927620987Smatt 2027620987SmattENTRY(__setjmp14) 2127620987Smatt l.sw JB_PC(r3), lr /* save return address */ 2227620987Smatt l.sw JB_LR(r3), lr /* save return address */ 2327620987Smatt l.sw JB_SP(r3), r1 /* save stack pointer */ 2427620987Smatt l.sw JB_FP(r3), r2 /* save frame pointer */ 2527620987Smatt l.sw JB_R10(r3), r10 /* save callee saved register */ 2627620987Smatt l.sw JB_R14(r3), r14 /* save callee saved register */ 2727620987Smatt l.sw JB_R16(r3), r16 /* save callee saved register */ 2827620987Smatt l.sw JB_R18(r3), r18 /* save callee saved register */ 2927620987Smatt l.sw JB_R20(r3), r20 /* save callee saved register */ 3027620987Smatt l.sw JB_R22(r3), r22 /* save callee saved register */ 3127620987Smatt l.sw JB_R24(r3), r24 /* save callee saved register */ 3227620987Smatt l.sw JB_R26(r3), r26 /* save callee saved register */ 3327620987Smatt l.sw JB_R28(r3), r28 /* save callee saved register */ 3427620987Smatt l.sw JB_R30(r3), r30 /* save callee saved register */ 3527620987Smatt l.addi r4, r0, 1 3627620987Smatt l.sw JB_MAGIC(r3), r4 /* note we saved sigmask */ 3727620987Smatt l.addi r5, r3, JB_SIGMASK # &sigmask 3827620987Smatt l.xor r4, r4, r4 39*ea952cb8Sskrll l.addi r3, r0, 0 4027620987Smatt _DOSYSCALL(__sigprocmask14) # assume no error XXX 4127620987Smatt l.xor r11, r11, r11 4227620987Smatt l.jr lr 4327620987Smatt l.nop 4427620987SmattEND(__setjmp14) 4527620987Smatt 4627620987SmattENTRY(__longjmp14) 4727620987Smatt l.lwz lr, JB_LR(r3) /* get return address */ 4827620987Smatt l.lwz r1, JB_SP(r3) /* get stack pointer */ 4927620987Smatt l.lwz r2, JB_FP(r3) /* get frame pointer */ 5027620987Smatt l.lwz r10, JB_R10(r3) /* get callee saved register */ 5127620987Smatt l.lwz r14, JB_R14(r3) /* get callee saved register */ 5227620987Smatt l.lwz r16, JB_R16(r3) /* get callee saved register */ 5327620987Smatt l.lwz r18, JB_R18(r3) /* get callee saved register */ 5427620987Smatt l.lwz r20, JB_R20(r3) /* get callee saved register */ 5527620987Smatt l.lwz r22, JB_R22(r3) /* get callee saved register */ 5627620987Smatt l.lwz r24, JB_R24(r3) /* get callee saved register */ 5727620987Smatt l.lwz r26, JB_R26(r3) /* get callee saved register */ 5827620987Smatt l.lwz r28, JB_R28(r3) /* get callee saved register */ 5927620987Smatt l.lwz r30, JB_R30(r3) /* get callee saved register */ 6027620987Smatt l.ori r11, r4, 0 6127620987Smatt l.xor r5, r5, r5 6227620987Smatt l.addi r4, r3, JB_SIGMASK # &sigmask 6327620987Smatt l.addi r3, r0, SIG_SETMASK 6427620987Smatt _DOSYSCALL(__sigprocmask14) # assume no error XXX 6527620987Smatt l.addi r6, r0, 1 6627620987Smatt l.sfeqi r11, 0 6727620987Smatt l.cmov r11, r6, r11 6827620987Smatt l.jr lr 6927620987Smatt l.nop 7027620987SmattEND(__longjmp14) 71