/*      $NetBSD: compat_sigprocmask.S,v 1.3 2014/05/22 15:21:13 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 2014/05/22 15:21:13 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)
        testq   %rsi,%rsi               # check new sigset pointer
        jnz     1f                      # if not null, indirect
        movl    $1,%edi                 # SIG_BLOCK
        jmp     2f
1:      movl    (%rsi),%esi             # fetch indirect  ...
2:      SYSTRAP(compat_13_sigprocmask13)
        jc      err
        testq   %rdx,%rdx               # test if old mask requested
        jz      out
        movq    %rax,(%rdx)             # store old mask
out:
        xorl    %eax,%eax
        ret
err:
#ifdef __PIC__
        movq    PIC_GOT(CERROR), %rcx
        jmp     *%rcx
#else
        jmp     CERROR
#endif
END(sigprocmask)