1/* $NetBSD: compat_sigprocmask.S,v 1.2 2013/09/12 15:36:16 joerg Exp $ */ 2 3/*- 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 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 * from: @(#)sigprocmask.s 5.2 (Berkeley) 12/17/90 35 */ 36 37#include <machine/asm.h> 38#if defined(SYSLIBC_SCCS) && !defined(lint) 39 RCSID("$NetBSD: compat_sigprocmask.S,v 1.2 2013/09/12 15:36:16 joerg Exp $") 40#endif /* SYSLIBC_SCCS and not lint */ 41 42#include "SYS.h" 43 44WARN_REFERENCES(sigprocmask, \ 45 "warning: reference to compatibility sigprocmask(); include <signal.h> for correct reference") 46 47ENTRY(sigprocmask) 48 movl 8(%esp),%ecx # fetch new sigset pointer 49 testl %ecx,%ecx # check new sigset pointer 50 jnz 1f # if not null, indirect 51/* movl $0,8(%esp) # null mask pointer: block empty set */ 52 movl $1,4(%esp) # SIG_BLOCK 53 jmp 2f 541: movl (%ecx),%ecx # fetch indirect ... 55 movl %ecx,8(%esp) # to new mask arg 562: SYSTRAP(compat_13_sigprocmask13) 57 jc err 58 movl 12(%esp),%ecx # fetch old mask requested 59 testl %ecx,%ecx # test if old mask requested 60 jz out 61 movl %eax,(%ecx) # store old mask 62out: 63 xorl %eax,%eax 64 ret 65err: 66#ifdef __PIC__ 67 PIC_PROLOGUE 68 mov PIC_GOT(CERROR), %ecx 69 PIC_EPILOGUE 70 jmp *%ecx 71#else 72 jmp CERROR 73#endif 74