Annotation of funnyos/libkern/asm.h, Revision 1.1.1.1
1.1 init 1: /* $Id: asm.h,v 1.1.1.1 2007/10/12 08:40:43 init Exp $ */
2: /* $OpenBSD: asm.h,v 1.1 2004/02/01 05:09:49 drahn Exp $ */
3: /* $NetBSD: asm.h,v 1.4 2001/07/16 05:43:32 matt Exp $ */
4:
5: /*
6: * Copyright (c) 1990 The Regents of the University of California.
7: * All rights reserved.
8: *
9: * This code is derived from software contributed to Berkeley by
10: * William Jolitz.
11: *
12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions and the following disclaimer.
17: * 2. Redistributions in binary form must reproduce the above copyright
18: * notice, this list of conditions and the following disclaimer in the
19: * documentation and/or other materials provided with the distribution.
20: * 3. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * from: @(#)asm.h 5.5 (Berkeley) 5/7/91
37: */
38:
39: #ifndef _ARM32_ASM_H_
40: #define _ARM32_ASM_H_
41:
42: #ifdef __ELF__
43: # define _C_LABEL(x) x
44: #else
45: # ifdef __STDC__
46: # define _C_LABEL(x) _ ## x
47: # else
48: # define _C_LABEL(x) _/**/x
49: # endif
50: #endif
51: #define _ASM_LABEL(x) x
52:
53: #ifdef __STDC__
54: # define __CONCAT(x,y) x ## y
55: # define __STRING(x) #x
56: #else
57: # define __CONCAT(x,y) x/**/y
58: # define __STRING(x) "x"
59: #endif
60:
61: #ifndef _ALIGN_TEXT
62: # define _ALIGN_TEXT .align 0
63: #endif
64:
65: /*
66: * gas/arm uses @ as a single comment character and thus cannot be used here
67: * Instead it recognised the # instead of an @ symbols in .type directives
68: * We define a couple of macros so that assembly code will not be dependant
69: * on one or the other.
70: */
71: #define _ASM_TYPE_FUNCTION #function
72: #define _ASM_TYPE_OBJECT #object
73: #define _ENTRY(x) \
74: .text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x:
75:
76: #ifdef GPROF
77: # ifdef __ELF__
78: # define _PROF_PROLOGUE \
79: mov ip, lr; bl __mcount
80: # else
81: # define _PROF_PROLOGUE \
82: mov ip,lr; bl mcount
83: # endif
84: #else
85: # define _PROF_PROLOGUE
86: #endif
87:
88: #define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
89: #define ENTRY_NP(y) _ENTRY(_C_LABEL(y))
90: #define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
91: #define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y))
92:
93: #define ASMSTR .asciz
94:
95: #if defined(__ELF__) && defined(PIC)
96: #ifdef __STDC__
97: #define PIC_SYM(x,y) x ## ( ## y ## )
98: #else
99: #define PIC_SYM(x,y) x/**/(/**/y/**/)
100: #endif
101: #else
102: #define PIC_SYM(x,y) x
103: #endif
104:
105: #ifdef __ELF__
106: #define RCSID(x) .section ".ident"; .asciz x
107: #else
108: #define RCSID(x) .text; .asciz x
109: #endif
110:
111: #ifdef __ELF__
112: #define WEAK_ALIAS(alias,sym) \
113: .weak alias; \
114: alias = sym
115: #endif
116:
117: #ifdef __STDC__
118: #define WARN_REFERENCES(sym,msg) \
119: .stabs msg ## ,30,0,0,0 ; \
120: .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0
121: #elif defined(__ELF__)
122: #define WARN_REFERENCES(sym,msg) \
123: .stabs msg,30,0,0,0 ; \
124: .stabs __STRING(sym),1,0,0,0
125: #else
126: #define WARN_REFERENCES(sym,msg) \
127: .stabs msg,30,0,0,0 ; \
128: .stabs __STRING(_/**/sym),1,0,0,0
129: #endif /* __STDC__ */
130:
131: #endif /* !_ARM_ASM_H_ */
CVSweb