sigaction1.S revision 279258 
1/*-
2 * Copyright (c) 2002 Jake Burkholder.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <machine/asm.h>
28__FBSDID("$FreeBSD: stable/10/lib/libc/sparc64/sys/sigaction1.S 279258 2015-02-24 22:28:44Z marius $");
29
30#include "SYS.h"
31
32	WEAK_REFERENCE(__sys_sigaction, _sigaction)
33ENTRY(__sys_sigaction)
34	PIC_PROLOGUE(%o3, %o4)
35	SET(sigcode_installed, %o4, %o3)
36	lduw	[%o3], %o4
37	brnz,a,pt %o4, 1f
38	 nop
39	save	%sp, -CCFSZ, %sp
40	call	__sparc_sigtramp_setup
41	 nop
42	restore
43	mov	1, %o4
44	stw	%o4, [%o3]
451:	_SYSCALL(sigaction)
46	retl
47	 nop
48END(__sys_sigaction)
49
50	.comm	sigcode_installed, 4, 4
51