asm.h revision 1.8.46.1
1 /* $NetBSD: asm.h,v 1.8.46.1 2007/09/03 16:47:14 jmcneill Exp $ */ 2 3 /* 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. 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 * from: @(#)asm.h 5.5 (Berkeley) 5/7/91 35 */ 36 37 #ifndef _ARM32_ASM_H_ 38 #define _ARM32_ASM_H_ 39 40 #include <arm/cdefs.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 #define _END(x) .size x,.-x 76 #define END(y) _END(_C_LABEL(y)) 77 #define ASEND(y) _END(_ASM_LABEL(y)) 78 79 80 #ifdef GPROF 81 # ifdef __ELF__ 82 # define _PROF_PROLOGUE \ 83 mov ip, lr; bl __mcount 84 # else 85 # define _PROF_PROLOGUE \ 86 mov ip,lr; bl mcount 87 # endif 88 #else 89 # define _PROF_PROLOGUE 90 #endif 91 92 #define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE 93 #define ENTRY_NP(y) _ENTRY(_C_LABEL(y)) 94 #define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE 95 #define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y)) 96 #define END(y) _END(_C_LABEL(y)) 97 #define ASEND(y) _END(_ASM_LABEL(y)) 98 99 #define ASMSTR .asciz 100 101 #if defined(__ELF__) && defined(PIC) 102 #ifdef __STDC__ 103 #define PIC_SYM(x,y) x ## ( ## y ## ) 104 #else 105 #define PIC_SYM(x,y) x/**/(/**/y/**/) 106 #endif 107 #else 108 #define PIC_SYM(x,y) x 109 #endif 110 111 #ifdef __ELF__ 112 #define RCSID(x) .section ".ident"; .asciz x 113 #else 114 #define RCSID(x) .text; .asciz x 115 #endif 116 117 #ifdef __ELF__ 118 #define WEAK_ALIAS(alias,sym) \ 119 .weak alias; \ 120 alias = sym 121 #endif 122 123 /* 124 * STRONG_ALIAS: create a strong alias. 125 */ 126 #define STRONG_ALIAS(alias,sym) \ 127 .globl alias; \ 128 alias = sym 129 130 #ifdef __STDC__ 131 #define WARN_REFERENCES(sym,msg) \ 132 .stabs msg ## ,30,0,0,0 ; \ 133 .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0 134 #elif defined(__ELF__) 135 #define WARN_REFERENCES(sym,msg) \ 136 .stabs msg,30,0,0,0 ; \ 137 .stabs __STRING(sym),1,0,0,0 138 #else 139 #define WARN_REFERENCES(sym,msg) \ 140 .stabs msg,30,0,0,0 ; \ 141 .stabs __STRING(_/**/sym),1,0,0,0 142 #endif /* __STDC__ */ 143 144 #if defined (_ARM_ARCH_6) 145 #define GET_CPUINFO(rX) mrc p15, 0, rX, c13, c0, 4 146 #endif 147 148 #if defined (_ARM_ARCH_4T) 149 # define RET bx lr 150 # ifdef __STDC__ 151 # define RETc(c) bx##c lr 152 # else 153 # define RETc(c) bx/**/c lr 154 # endif 155 #else 156 # define RET mov pc, lr 157 # ifdef __STDC__ 158 # define RETc(c) mov##c pc, lr 159 # else 160 # define RETc(c) mov/**/c pc, lr 161 # endif 162 #endif 163 164 #endif /* !_ARM_ASM_H_ */ 165
Indexes created Thu Oct 02 14:10:14 GMT 2025