1/* $OpenBSD: asm.h,v 1.13 2022/12/08 01:25:44 guenther Exp $ */
2/* $NetBSD: asm.h,v 1.4 2001/07/16 05:43:32 matt Exp $ */
3
4/*
5 * Copyright (c) 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * William Jolitz.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * from: @(#)asm.h 5.5 (Berkeley) 5/7/91
36 */
37
38#ifndef _ARM_ASM_H_
39#define _ARM_ASM_H_
40
41#define _C_LABEL(x) x
42#define _ASM_LABEL(x) x
43
44#ifdef __STDC__
45# define __CONCAT(x,y) x ## y
46# define __STRING(x) #x
47#else
48# define __CONCAT(x,y) x/**/y
49# define __STRING(x) "x"
50#endif
51
52#ifndef _ALIGN_TEXT
53# define _ALIGN_TEXT .align 2
54#endif
55
56/*
57 * gas/arm uses @ as a single comment character and thus cannot be used here
58 * Instead it recognised the # instead of an @ symbols in .type directives
59 * We define a couple of macros so that assembly code will not be dependant
60 * on one or the other.
61 */
62#define _ASM_TYPE_FUNCTION #function
63#define _ASM_TYPE_OBJECT #object
64
65/* NB == No Binding: use .globl or .weak as necessary */
66#define _ENTRY_NB(x) \
67 .text; _ALIGN_TEXT; .type x,_ASM_TYPE_FUNCTION; x:
68#define _ENTRY(x) .globl x; _ENTRY_NB(x)
69
70#if defined(PROF) || defined(GPROF)
71# define _PROF_PROLOGUE \
72 mov ip, lr; bl __mcount
73#else
74# define _PROF_PROLOGUE
75#endif
76
77#define ENTRY(y) _ENTRY(y); _PROF_PROLOGUE
78#define ENTRY_NP(y) _ENTRY(y)
79#define ENTRY_NB(y) _ENTRY_NB(y); _PROF_PROLOGUE
80#define ASENTRY(y) _ENTRY(y); _PROF_PROLOGUE
81#define ASENTRY_NP(y) _ENTRY(y)
82#define END(y) .size y, . - y
83
84#if defined(__PIC__)
85#define PIC_SYM(x,y) x(y)
86#else
87#define PIC_SYM(x,y) x
88#endif
89
90#define STRONG_ALIAS(alias,sym) \
91 .global alias; \
92 alias = sym
93#define WEAK_ALIAS(alias,sym) \
94 .weak alias; \
95 alias = sym
96
97#endif /* !_ARM_ASM_H_ */