1// SPDX-License-Identifier: BSD-3-Clause 2/* 3 * Copyright (c) 1992, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This software was developed by the Computer Systems Engineering group 7 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 8 * contributed to Berkeley. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $Header: _setjmp.s,v 1.1 91/07/06 16:45:53 torek Exp 35 */ 36 37#if defined(LIBC_SCCS) && !defined(lint) 38#if 0 39 .asciz "@(#)_setjmp.s 8.1 (Berkeley) 6/4/93" 40#else 41 RCSID("$NetBSD: _setjmp.S,v 1.4 1998/10/08 02:27:59 eeh Exp $") 42#endif 43#endif /* LIBC_SCCS and not lint */ 44 45#define _JB_FP 0x0 46#define _JB_PC 0x8 47#define _JB_SP 0x10 48 49 .register %g2,#ignore 50 .register %g3,#ignore 51 52#define ENTRY(x) \ 53 .text ; \ 54 .balign 32 ; \ 55 .globl x ; \ 56 .type x,@function ; \ 57x: 58 59#define END(x) \ 60 .size x, . - x 61 62/* 63 * C library -- setjmp, longjmp 64 * 65 * longjmp(a,v) 66 * will generate a "return(v?v:1)" from 67 * the last call to 68 * setjmp(a) 69 * by restoring the previous context. 70 */ 71 72ENTRY(setjmp) 73 stx %sp, [%o0 + _JB_SP] 74 stx %o7, [%o0 + _JB_PC] 75 stx %fp, [%o0 + _JB_FP] 76 retl 77 clr %o0 78END(setjmp) 79 80ENTRY(longjmp) 81 mov 1, %g1 82 movrnz %o1, %o1, %g1 83 mov %o0, %g2 84 ldx [%g2 + _JB_FP], %g3 851: cmp %fp, %g3 86 bl,a 1b 87 restore 88 be,a 2f 89 ldx [%g2 + _JB_SP], %o0 90 91.Lbotch: 92 illtrap 93 942: cmp %o0, %sp 95 bge,a 3f 96 mov %o0, %sp 97 b,a .Lbotch 98 nop 993: ldx [%g2 + _JB_PC], %o7 100 retl 101 mov %g1, %o0 102END(longjmp) 103 104#ifdef __ELF__ 105.section .note.GNU-stack,"",%progbits 106#endif 107