summaryrefslogtreecommitdiff
path: root/sys/arch/sh3/include/asm.h
blob: 3c74d29295c89de100744e4c909cd6a1bedb0827 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
/*	$NetBSD: asm.h,v 1.16 2003/11/24 04:07:22 uwe 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.
 *
 *	@(#)asm.h	5.5 (Berkeley) 5/7/91
 */

#ifndef _SH3_ASM_H_
#define	_SH3_ASM_H_

#define	PIC_PROLOGUE
#define	PIC_EPILOGUE
#define	PIC_PLT(x)	x
#define	PIC_GOT(x)	x
#define	PIC_GOTOFF(x)	x

/*
 * The old NetBSD/sh3 ELF toolchain used underscores.  The new
 * NetBSD/sh3 ELF toolchain does not.  The C pre-processor
 * defines __NO_LEADING_UNDERSCORES__ for the new ELF toolchain.
 */

#if (defined(__ELF__) && defined(__NO_LEADING_UNDERSCORES__))
# define _C_LABEL(x)	x
#else
#ifdef __STDC__
# define _C_LABEL(x)	_ ## x
#else
# define _C_LABEL(x)	_/**/x
#endif
#endif
#define	_ASM_LABEL(x)	x

/* let kernels and others override entrypoint alignment */
#ifndef _ALIGN_TEXT
# define _ALIGN_TEXT .align 2
#endif

#ifdef __ELF__
#define	_ENTRY(x)							\
	.text								;\
	_ALIGN_TEXT							;\
	.globl x							;\
	.type x,@function						;\
	x:
#else /* __ELF__ */
#define	_ENTRY(x)							\
	.text								;\
	_ALIGN_TEXT							;\
	.globl x							;\
	x:
#endif /* __ELF__ */

#ifdef GPROF
#define	_PROF_PROLOGUE				  \
	mov.l	1f,r1				; \
	mova	2f,r0				; \
	jmp	@r1				; \
	 nop					; \
	.align	2				; \
1:	.long	__mcount			; \
2:
#else  /* !GPROF */
#define	_PROF_PROLOGUE
#endif /* !GPROF */

#define	ENTRY(y)	_ENTRY(_C_LABEL(y))				;\
	_PROF_PROLOGUE
#define	NENTRY(y)	_ENTRY(_C_LABEL(y))
#define	ASENTRY(y)	_ENTRY(_ASM_LABEL(y))				;\
	_PROF_PROLOGUE

#ifdef __ELF__
#define	ALTENTRY(name)	.globl _C_LABEL(name)				;\
	.type _C_LABEL(name),@function					;\
	_C_LABEL(name):
#else
#define	ALTENTRY(name)	.globl _C_LABEL(name)				;\
	_C_LABEL(name):
#endif

#define	ASMSTR		.asciz

#ifdef __ELF__
#define RCSID(x)	.section .ident; .asciz x; .previous
#else
#define	RCSID(x)	.text; .asciz x
#endif

#ifdef NO_KERNEL_RCSIDS
#define	__KERNEL_RCSID(_n, _s)	/* nothing */
#else
#define	__KERNEL_RCSID(_n, _s)	RCSID(_s)
#endif

#ifdef __ELF__
#define	WEAK_ALIAS(alias,sym)						\
	.weak _C_LABEL(alias);						\
	_C_LABEL(alias) = _C_LABEL(sym)
#endif

#ifdef __STDC__
#define	__STRING(x)			#x
#define	WARN_REFERENCES(sym, msg)
#else
#define	__STRING(x)			"x"
#define	WARN_REFERENCES(sym, msg)
#endif /* __STDC__ */

#endif /* !_SH3_ASM_H_ */