xref: /netbsd/sys/arch/vax/include/asm.h (revision c4a72b64)
1 /*	$NetBSD: asm.h,v 1.15 2002/10/02 00:23:29 thorpej Exp $ */
2 /*
3  * Copyright (c) 1982, 1993
4  *	The Regents of the University of California.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *	This product includes software developed by the University of
17  *	California, Berkeley and its contributors.
18  * 4. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  *
34  *	@(#)DEFS.h	8.1 (Berkeley) 6/4/93
35  */
36 
37 #ifndef _VAX_ASM_H_
38 #define _VAX_ASM_H_
39 
40 #define R0	0x001
41 #define R1	0x002
42 #define R2	0x004
43 #define R3	0x008
44 #define R4	0x010
45 #define R5	0x020
46 #define R6	0x040
47 #define R7 	0x080
48 #define R8	0x100
49 #define R9	0x200
50 #define R10	0x400
51 #define R11	0x800
52 
53 #ifdef __ELF__
54 # define _C_LABEL(x)	x
55 #else
56 # ifdef __STDC__
57 #  define _C_LABEL(x)	_ ## x
58 # else
59 #  define _C_LABEL(x)	_/**/x
60 # endif
61 #endif
62 
63 #define	_ASM_LABEL(x)	x
64 
65 #ifdef __STDC__
66 # define __CONCAT(x,y)	x ## y
67 # define __STRING(x)	#x
68 #else
69 # define __CONCAT(x,y)	x/**/y
70 # define __STRING(x)	"x"
71 #endif
72 
73 /* let kernels and others override entrypoint alignment */
74 #ifndef _ALIGN_TEXT
75 # ifdef __ELF__
76 #  define _ALIGN_TEXT .align 4
77 # else
78 #  define _ALIGN_TEXT .align 2
79 # endif
80 #endif
81 
82 #define	_ENTRY(x, regs) \
83 	.text; _ALIGN_TEXT; .globl x; .type x@function; x: .word regs
84 
85 #ifdef GPROF
86 # ifdef __ELF__
87 #  define _PROF_PROLOGUE	\
88 	.data; 1:; .long 0; .text; moval 1b,%r0; jsb _ASM_LABEL(__mcount)
89 # else
90 #  define _PROF_PROLOGUE	\
91 	.data; 1:; .long 0; .text; moval 1b,r0; jsb _ASM_LABEL(mcount)
92 # endif
93 #else
94 # define _PROF_PROLOGUE
95 #endif
96 
97 #define ENTRY(x, regs)		_ENTRY(_C_LABEL(x), regs); _PROF_PROLOGUE
98 #define NENTRY(x, regs)		_ENTRY(_C_LABEL(x), regs)
99 #define ASENTRY(x, regs)	_ENTRY(_ASM_LABEL(x), regs); _PROF_PROLOGUE
100 
101 #define ALTENTRY(x)		.globl _C_LABEL(x); _C_LABEL(x):
102 #define RCSID(x)		.text; .asciz x
103 
104 #ifdef __ELF__
105 #define	WEAK_ALIAS(alias,sym)						\
106 	.weak alias;							\
107 	alias = sym
108 #endif
109 
110 #ifdef __STDC__
111 #define	WARN_REFERENCES(sym,msg)					\
112 	.stabs msg ## ,30,0,0,0 ;					\
113 	.stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0
114 #else
115 #define	WARN_REFERENCES(sym,msg)					\
116 	.stabs msg,30,0,0,0 ;						\
117 	.stabs __STRING(_C_LABEL(sym)),1,0,0,0
118 #endif /* __STDC__ */
119 
120 #endif /* !_VAX_ASM_H_ */
121