1 /* $NetBSD: asm.h,v 1.5 2003/08/07 16:26:53 agc 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 * $FreeBSD$ 37 */ 38 39 #ifndef _MACHINE_ASM_H_ 40 #define _MACHINE_ASM_H_ 41 #include <sys/cdefs.h> 42 43 #ifdef __ELF__ 44 # define _C_LABEL(x) x 45 #else 46 # ifdef __STDC__ 47 # define _C_LABEL(x) _ ## x 48 # else 49 # define _C_LABEL(x) _/**/x 50 # endif 51 #endif 52 #define _ASM_LABEL(x) x 53 54 #ifndef _JB_MAGIC__SETJMP 55 #define _JB_MAGIC__SETJMP 0x4278f500 56 #define _JB_MAGIC_SETJMP 0x4278f501 57 #endif 58 59 #define I32_bit (1 << 7) /* IRQ disable */ 60 #define F32_bit (1 << 6) /* FIQ disable */ 61 62 #define CPU_CONTROL_32BP_ENABLE 0x00000010 /* P: 32-bit exception handlers */ 63 #define CPU_CONTROL_32BD_ENABLE 0x00000020 /* D: 32-bit addressing */ 64 65 #ifndef _ALIGN_TEXT 66 # define _ALIGN_TEXT .align 0 67 #endif 68 69 /* 70 * gas/arm uses @ as a single comment character and thus cannot be used here 71 * Instead it recognised the # instead of an @ symbols in .type directives 72 * We define a couple of macros so that assembly code will not be dependant 73 * on one or the other. 74 */ 75 #define _ASM_TYPE_FUNCTION #function 76 #define _ASM_TYPE_OBJECT #object 77 #define GLOBAL(X) .globl x 78 #define _ENTRY(x) \ 79 .text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x: 80 81 #ifdef GPROF 82 # define _PROF_PROLOGUE \ 83 mov ip, lr; bl __mcount 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 #undef __FBSDID 106 #if !defined(lint) && !defined(STRIP_FBSDID) 107 #define __FBSDID(s) .ident s 108 #else 109 #define __FBSDID(s) /* nothing */ 110 #endif 111 112 113 #ifdef __ELF__ 114 #define WEAK_ALIAS(alias,sym) \ 115 .weak alias; \ 116 alias = sym 117 #endif 118 119 #ifdef __STDC__ 120 #define WARN_REFERENCES(sym,msg) \ 121 .stabs msg ## ,30,0,0,0 ; \ 122 .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0 123 #elif defined(__ELF__) 124 #define WARN_REFERENCES(sym,msg) \ 125 .stabs msg,30,0,0,0 ; \ 126 .stabs __STRING(sym),1,0,0,0 127 #else 128 #define WARN_REFERENCES(sym,msg) \ 129 .stabs msg,30,0,0,0 ; \ 130 .stabs __STRING(_/**/sym),1,0,0,0 131 #endif /* __STDC__ */ 132 133 134 #if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) 135 #define _ARM_ARCH_6 136 #endif 137 138 #if defined (_ARM_ARCH_6) || defined (__ARM_ARCH_5__) || \ 139 defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5TE__) || \ 140 defined (__ARM_ARCH_5TEJ__) || defined (__ARM_ARCH_5E__) 141 #define _ARM_ARCH_5 142 #endif 143 144 #if defined (_ARM_ARCH_6) || defined(__ARM_ARCH_5TE__) || \ 145 defined(__ARM_ARCH_5TEJ__) || defined(__ARM_ARCH_5E__) 146 #define _ARM_ARCH_5E 147 #endif 148 149 #if defined (_ARM_ARCH_5) || defined (__ARM_ARCH_4T__) 150 #define _ARM_ARCH_4T 151 #endif 152 153 154 #if defined (_ARM_ARCH_4T) 155 # define RET bx lr 156 # define RETeq bxeq lr 157 # define RETne bxne lr 158 # ifdef __STDC__ 159 # define RETc(c) bx##c lr 160 # else 161 # define RETc(c) bx/**/c lr 162 # endif 163 #else 164 # define RET mov pc, lr 165 # define RETeq moveq pc, lr 166 # define RETne movne pc, lr 167 # ifdef __STDC__ 168 # define RETc(c) mov##c pc, lr 169 # else 170 # define RETc(c) mov/**/c pc, lr 171 # endif 172 #endif 173 174 #endif /* !_MACHINE_ASM_H_ */ 175