/* $NetBSD: compat_sigprocmask.S,v 1.3 2014/05/23 02:34:33 uebayasi Exp $ */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: @(#)sigprocmask.s 5.2 (Berkeley) 12/17/90 */ #include <machine/asm.h> #if defined(SYSLIBC_SCCS) && !defined(lint) RCSID("$NetBSD: compat_sigprocmask.S,v 1.3 2014/05/23 02:34:33 uebayasi Exp $") #endif /* SYSLIBC_SCCS and not lint */ #include "SYS.h" WARN_REFERENCES(sigprocmask, \ "warning: reference to compatibility sigprocmask(); include <signal.h> for correct reference") ENTRY(sigprocmask) movl 8(%esp),%ecx # fetch new sigset pointer testl %ecx,%ecx # check new sigset pointer jnz 1f # if not null, indirect /* movl $0,8(%esp) # null mask pointer: block empty set */ movl $1,4(%esp) # SIG_BLOCK jmp 2f 1: movl (%ecx),%ecx # fetch indirect ... movl %ecx,8(%esp) # to new mask arg 2: SYSTRAP(compat_13_sigprocmask13) jc err movl 12(%esp),%ecx # fetch old mask requested testl %ecx,%ecx # test if old mask requested jz out movl %eax,(%ecx) # store old mask out: xorl %eax,%eax ret err: #ifdef __PIC__ PIC_PROLOGUE mov PIC_GOT(CERROR), %ecx PIC_EPILOGUE jmp *%ecx #else jmp CERROR #endif END(sigprocmask) |