xref: /netbsd-src/sys/arch/powerpc/include/asm.h (revision 481fca6e59249d8ffcf24fef7cfbe7b131bfb080)
1 /*	$NetBSD: asm.h,v 1.7 2000/06/23 12:18:49 kleink Exp $	*/
2 
3 /*
4  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
5  * Copyright (C) 1995, 1996 TooLs GmbH.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by TooLs GmbH.
19  * 4. The name of TooLs GmbH may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #ifndef _PPC_ASM_H_
35 #define _PPC_ASM_H_
36 
37 #ifdef PIC
38 #define PIC_PROLOGUE	XXX
39 #define PIC_EPILOGUE	XXX
40 #define PIC_PLT(x)	x@plt
41 #ifdef	__STDC__
42 #define PIC_GOT(x)	XXX
43 #define PIC_GOTOFF(x)	XXX
44 #else	/* not __STDC__ */
45 #define PIC_GOT(x)	XXX
46 #define PIC_GOTOFF(x)	XXX
47 #endif	/* __STDC__ */
48 #else
49 #define PIC_PROLOGUE
50 #define PIC_EPILOGUE
51 #define PIC_PLT(x)	x
52 #define PIC_GOT(x)	x
53 #define PIC_GOTOFF(x)	x
54 #endif
55 
56 #define	_C_LABEL(x)	x
57 #define	_ASM_LABEL(x)	x
58 
59 #define	_GLOBAL(x) \
60 	.data; .align 2; .globl x; x:
61 
62 #define _ENTRY(x) \
63 	.text; .align 2; .globl x; .type x,@function; x:
64 
65 #ifdef GPROF
66 # define _PROF_PROLOGUE	mflr 0; stw 0,4(1); bl _mcount
67 #else
68 # define _PROF_PROLOGUE
69 #endif
70 
71 #define	ENTRY(y)	_ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
72 #define	ASENTRY(y)	_ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
73 #define	GLOBAL(y)	_GLOBAL(_C_LABEL(y))
74 
75 #define	ASMSTR		.asciz
76 
77 #define RCSID(x)	.text; .asciz x
78 
79 #ifdef __ELF__
80 #define	WEAK_ALIAS(alias,sym)						\
81 	.weak alias;							\
82 	alias = sym
83 #endif
84 
85 #ifdef __STDC__
86 #define	WARN_REFERENCES(_sym,_msg)				\
87 	.section .gnu.warning. ## _sym ; .ascii _msg ; .text
88 #else
89 #define	WARN_REFERENCES(_sym,_msg)				\
90 	.section .gnu.warning./**/_sym ; .ascii _msg ; .text
91 #endif /* __STDC__ */
92 
93 #endif /* !_PPC_ASM_H_ */
94