_setjmp.S revision 285830
1/* 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This software was developed by the Computer Systems Engineering group 6 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 7 * contributed to Berkeley. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: Header: _setjmp.s,v 1.1 91/07/06 16:45:53 torek Exp 34 */ 35 36#if defined(LIBC_SCCS) && !defined(lint) 37 .asciz "@(#)_setjmp.s 8.1 (Berkeley) 6/4/93" 38#if 0 39 RCSID("$NetBSD: _setjmp.S,v 1.4 1998/10/08 02:27:59 eeh Exp $") 40#endif 41#endif /* LIBC_SCCS and not lint */ 42#include <machine/asm.h> 43__FBSDID("$FreeBSD: releng/10.2/lib/libc/sparc64/gen/_setjmp.S 165903 2007-01-09 00:28:16Z imp $"); 44 45#include "assym.s" 46 47 .register %g2,#ignore 48 .register %g3,#ignore 49 50/* 51 * C library -- _setjmp, _longjmp 52 * 53 * _longjmp(a,v) 54 * will generate a "return(v?v:1)" from 55 * the last call to 56 * _setjmp(a) 57 * by restoring the previous context. 58 * The previous signal state is NOT restored. 59 */ 60 61ENTRY(_setjmp) 62 stx %sp, [%o0 + _JB_SP] 63 stx %o7, [%o0 + _JB_PC] 64 retl 65 clr %o0 66END(_setjmp) 67 68 .weak CNAME(_longjmp) 69 .set CNAME(_longjmp),CNAME(___longjmp) 70ENTRY(___longjmp) 71 save %sp, -CCFSZ, %sp 72 flushw 73 ldx [%i0 + _JB_SP], %fp 74 ldx [%i0 + _JB_PC], %i7 75 mov 1, %i0 76 movrnz %i1, %i1, %i0 77 ret 78 restore 79END(___longjmp) 80