1/* $NetBSD: compat_sigsetjmp.S,v 1.3 2020/10/15 05:27:53 skrll Exp $ */ 2 3/*- 4 * Copyright (c) 1991, 1993, 1995, 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Havard Eidnes. 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 * 3. 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 35#include <sys/syscall.h> 36#include <mips/asm.h> 37#include <mips/regdef.h> 38 39#include "assym.h" 40 41#if defined(LIBC_SCCS) && !defined(lint) 42#if 0 43 ASMSTR("from: @(#)setjmp.s 8.1 (Berkeley) 6/4/93") 44#else 45 ASMSTR("$NetBSD: compat_sigsetjmp.S,v 1.3 2020/10/15 05:27:53 skrll Exp $") 46#endif 47#endif /* LIBC_SCCS and not lint */ 48 49/* 50 * C library -- sigsetjmp, siglongjmp 51 * 52 * siglongjmp(a,v) 53 * will generate a "return(v)" from 54 * the last call to 55 * sigsetjmp(a, savemask) 56 * by restoring registers from the stack, 57 * and dependent on savemask restores the 58 * signal mask. 59 */ 60 61LEAF(sigsetjmp) 62 SETUP_GP 63 SETUP_GP64(t0, sigsetjmp) 64 INT_S a1, _SC_MASK13(a0) # save "savemask" 65 bne a1, 0x0, 1f # do saving of signal mask? 66 PTR_LA t9, _C_LABEL(_setjmp) 67 jr t9 68 691: PTR_LA t9, _C_LABEL(setjmp) 70 jr t9 71END(sigsetjmp) 72 73LEAF(siglongjmp) 74 SETUP_GP 75 SETUP_GP64(t0, siglongjmp) 76 INT_L t1, _SC_MASK13(a0) # get "savemask" 77 bne t1, 0x0, 1f # restore signal mask? 78 PTR_LA t9, _C_LABEL(_longjmp) 79 jr t9 80 811: PTR_LA t9, _C_LABEL(longjmp) 82 jr t9 83END(siglongjmp) 84