1*a5f181b9Smiod/* $OpenBSD: _setjmp.S,v 1.3 2004/05/04 15:57:06 miod Exp $ */ 27e2260f1Sart/* $NetBSD: _setjmp.S,v 1.4 1998/10/08 02:27:59 eeh Exp $ */ 37e2260f1Sart 47e2260f1Sart/* 57e2260f1Sart * Copyright (c) 1992, 1993 67e2260f1Sart * The Regents of the University of California. All rights reserved. 77e2260f1Sart * 87e2260f1Sart * This software was developed by the Computer Systems Engineering group 97e2260f1Sart * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 107e2260f1Sart * contributed to Berkeley. 117e2260f1Sart * 127e2260f1Sart * Redistribution and use in source and binary forms, with or without 137e2260f1Sart * modification, are permitted provided that the following conditions 147e2260f1Sart * are met: 157e2260f1Sart * 1. Redistributions of source code must retain the above copyright 167e2260f1Sart * notice, this list of conditions and the following disclaimer. 177e2260f1Sart * 2. Redistributions in binary form must reproduce the above copyright 187e2260f1Sart * notice, this list of conditions and the following disclaimer in the 197e2260f1Sart * documentation and/or other materials provided with the distribution. 206580fee3Smillert * 3. Neither the name of the University nor the names of its contributors 217e2260f1Sart * may be used to endorse or promote products derived from this software 227e2260f1Sart * without specific prior written permission. 237e2260f1Sart * 247e2260f1Sart * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 257e2260f1Sart * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 267e2260f1Sart * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 277e2260f1Sart * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 287e2260f1Sart * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 297e2260f1Sart * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 307e2260f1Sart * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 317e2260f1Sart * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 327e2260f1Sart * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 337e2260f1Sart * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 347e2260f1Sart * SUCH DAMAGE. 357e2260f1Sart */ 367e2260f1Sart 377e2260f1Sart#include <machine/asm.h> 387e2260f1Sart 39*a5f181b9Smiod .register %g2,#ignore 40*a5f181b9Smiod .register %g3,#ignore 41*a5f181b9Smiod 427e2260f1Sart/* 437e2260f1Sart * C library -- _setjmp, _longjmp 447e2260f1Sart * 457e2260f1Sart * _longjmp(a,v) 467e2260f1Sart * will generate a "return(v?v:1)" from 477e2260f1Sart * the last call to 487e2260f1Sart * _setjmp(a) 49*a5f181b9Smiod * by restoring the previous context. 507e2260f1Sart * The previous signal state is NOT restored. 517e2260f1Sart */ 527e2260f1Sart 537e2260f1SartENTRY(_setjmp) 547e2260f1Sart stx %sp, [%o0 + 0x00] /* store caller's stack pointer */ 55*a5f181b9Smiod stx %o7, [%o0 + 0x08] /* ... and return pc */ 567e2260f1Sart retl 577e2260f1Sart clr %o0 ! return 0 587e2260f1Sart 597e2260f1SartENTRY(_longjmp) 60*a5f181b9Smiod save %sp, -CC64FSZ, %sp 61*a5f181b9Smiod flushw 62*a5f181b9Smiod ldx [%i0 + 0x00], %fp 63*a5f181b9Smiod ldx [%i0 + 0x08], %i7 64*a5f181b9Smiod mov 1, %i0 65*a5f181b9Smiod movrnz %i1, %i1, %i0 ! compute v ? v : 1 66*a5f181b9Smiod ret 67*a5f181b9Smiod restore 68