xref: /minix3/lib/csu/arch/powerpc/crtn.S (revision 0a6a1f1d05b60e214de2f05a7310ddd1f0e590e7)
1f14fb602SLionel Sambuc/*-
2f14fb602SLionel Sambuc * Copyright (c) 2011 The NetBSD Foundation, Inc.
3f14fb602SLionel Sambuc * All rights reserved.
4f14fb602SLionel Sambuc *
5f14fb602SLionel Sambuc * This code is derived from software contributed to The NetBSD Foundation
6f14fb602SLionel Sambuc * by Matt Thomas of 3am Software Foundry.
7f14fb602SLionel Sambuc *
8f14fb602SLionel Sambuc * Redistribution and use in source and binary forms, with or without
9f14fb602SLionel Sambuc * modification, are permitted provided that the following conditions
10f14fb602SLionel Sambuc * are met:
11f14fb602SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
12f14fb602SLionel Sambuc *    notice, this list of conditions and the following disclaimer.
13f14fb602SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
14f14fb602SLionel Sambuc *    notice, this list of conditions and the following disclaimer in the
15f14fb602SLionel Sambuc *    documentation and/or other materials provided with the distribution.
16f14fb602SLionel Sambuc *
17f14fb602SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18f14fb602SLionel Sambuc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19f14fb602SLionel Sambuc * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20f14fb602SLionel Sambuc * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21f14fb602SLionel Sambuc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22f14fb602SLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23f14fb602SLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24f14fb602SLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25f14fb602SLionel Sambuc * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26f14fb602SLionel Sambuc * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27f14fb602SLionel Sambuc * POSSIBILITY OF SUCH DAMAGE.
28f14fb602SLionel Sambuc */
29f14fb602SLionel Sambuc
30f14fb602SLionel Sambuc#include <powerpc/asm.h>
31f14fb602SLionel Sambuc
32*0a6a1f1dSLionel SambucRCSID("$NetBSD: crtn.S,v 1.2 2014/02/27 16:47:48 matt Exp $")
33f14fb602SLionel Sambuc
34f14fb602SLionel Sambuc	.section ".init", "ax", @progbits
35*0a6a1f1dSLionel Sambuc#ifdef _LP64
36*0a6a1f1dSLionel Sambuc	ldreg	%r0, (2*SZREG)(%r1)
37*0a6a1f1dSLionel Sambuc	addi	%r1, %r1, (6*SZREG)
38*0a6a1f1dSLionel Sambuc#else
39f14fb602SLionel Sambuc	addi	%r1, %r1, (4*SZREG)
40f14fb602SLionel Sambuc	lwz	%r0, (1*SZREG)(%r1)
41*0a6a1f1dSLionel Sambuc#endif
42f14fb602SLionel Sambuc	mtlr	%r0
43f14fb602SLionel Sambuc	blr
44f14fb602SLionel Sambuc
45f14fb602SLionel Sambuc	.section ".fini", "ax", @progbits
46*0a6a1f1dSLionel Sambuc#ifdef _LP64
47*0a6a1f1dSLionel Sambuc	ldreg	%r0, (2*SZREG)(%r1)
48*0a6a1f1dSLionel Sambuc	addi	%r1, %r1, (6*SZREG)
49*0a6a1f1dSLionel Sambuc#else
50f14fb602SLionel Sambuc	addi	%r1, %r1, (4*SZREG)
51f14fb602SLionel Sambuc	lwz	%r0, (1*SZREG)(%r1)
52*0a6a1f1dSLionel Sambuc#endif
53f14fb602SLionel Sambuc	mtlr	%r0
54f14fb602SLionel Sambuc	blr
55