1 /* $NetBSD: asm.h,v 1.8 2006/01/20 22:02:40 christos 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 #ifdef __ELF__ 41 # define _C_LABEL(x) x 42 #else 43 # ifdef __STDC__ 44 # define _C_LABEL(x) _ ## x 45 # else 46 # define _C_LABEL(x) _/**/x 47 # endif 48 #endif 49 #define _ASM_LABEL(x) x 50 51 #ifdef __STDC__ 52 # define __CONCAT(x,y) x ## y 53 # define __STRING(x) #x 54 #else 55 # define __CONCAT(x,y) x/**/y 56 # define __STRING(x) "x" 57 #endif 58 59 #ifndef _ALIGN_TEXT 60 # define _ALIGN_TEXT .align 0 61 #endif 62 63 /* 64 * gas/arm uses @ as a single comment character and thus cannot be used here 65 * Instead it recognised the # instead of an @ symbols in .type directives 66 * We define a couple of macros so that assembly code will not be dependant 67 * on one or the other. 68 */ 69 #define _ASM_TYPE_FUNCTION #function 70 #define _ASM_TYPE_OBJECT #object 71 #define _ENTRY(x) \ 72 .text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x: 73 74 #ifdef GPROF 75 # ifdef __ELF__ 76 # define _PROF_PROLOGUE \ 77 mov ip, lr; bl __mcount 78 # else 79 # define _PROF_PROLOGUE \ 80 mov ip,lr; bl mcount 81 # endif 82 #else 83 # define _PROF_PROLOGUE 84 #endif 85 86 #define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE 87 #define ENTRY_NP(y) _ENTRY(_C_LABEL(y)) 88 #define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE 89 #define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y)) 90 91 #define ASMSTR .asciz 92 93 #if defined(__ELF__) && defined(PIC) 94 #ifdef __STDC__ 95 #define PIC_SYM(x,y) x ## ( ## y ## ) 96 #else 97 #define PIC_SYM(x,y) x/**/(/**/y/**/) 98 #endif 99 #else 100 #define PIC_SYM(x,y) x 101 #endif 102 103 #ifdef __ELF__ 104 #define RCSID(x) .section ".ident"; .asciz x 105 #else 106 #define RCSID(x) .text; .asciz x 107 #endif 108 109 #ifdef __ELF__ 110 #define WEAK_ALIAS(alias,sym) \ 111 .weak alias; \ 112 alias = sym 113 #endif 114 115 /* 116 * STRONG_ALIAS: create a strong alias. 117 */ 118 #define STRONG_ALIAS(alias,sym) \ 119 .globl alias; \ 120 alias = sym 121 122 #ifdef __STDC__ 123 #define WARN_REFERENCES(sym,msg) \ 124 .stabs msg ## ,30,0,0,0 ; \ 125 .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0 126 #elif defined(__ELF__) 127 #define WARN_REFERENCES(sym,msg) \ 128 .stabs msg,30,0,0,0 ; \ 129 .stabs __STRING(sym),1,0,0,0 130 #else 131 #define WARN_REFERENCES(sym,msg) \ 132 .stabs msg,30,0,0,0 ; \ 133 .stabs __STRING(_/**/sym),1,0,0,0 134 #endif /* __STDC__ */ 135 136 #if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) 137 #define _ARM_ARCH_6 138 #endif 139 140 #if defined (_ARM_ARCH_6) || defined (__ARM_ARCH_5__) || \ 141 defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5TE__) || \ 142 defined (__ARM_ARCH_5TEJ__) 143 #define _ARM_ARCH_5 144 #endif 145 146 #if defined (_ARM_ARCH_5) || defined (__ARM_ARCH_4T__) 147 #define _ARM_ARCH_4T 148 #endif 149 150 151 #if defined (_ARM_ARCH_4T) 152 # define RET bx lr 153 # ifdef __STDC__ 154 # define RETc(c) bx##c lr 155 # else 156 # define RETc(c) bx/**/c lr 157 # endif 158 #else 159 # define RET mov pc, lr 160 # ifdef __STDC__ 161 # define RETc(c) mov##c pc, lr 162 # else 163 # define RETc(c) mov/**/c pc, lr 164 # endif 165 #endif 166 167 #endif /* !_ARM_ASM_H_ */ 168
