1 /* $OpenBSD: asm.h,v 1.1 2004/02/01 05:09:49 drahn Exp $ */ 2 /* $NetBSD: asm.h,v 1.4 2001/07/16 05:43:32 matt Exp $ */ 3 4 /* 5 * Copyright (c) 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * William Jolitz. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: @(#)asm.h 5.5 (Berkeley) 5/7/91 36 */ 37 38 #ifndef _ARM32_ASM_H_ 39 #define _ARM32_ASM_H_ 40 41 #ifdef __ELF__ 42 # define _C_LABEL(x) x 43 #else 44 # ifdef __STDC__ 45 # define _C_LABEL(x) _ ## x 46 # else 47 # define _C_LABEL(x) _/**/x 48 # endif 49 #endif 50 #define _ASM_LABEL(x) x 51 52 #ifdef __STDC__ 53 # define __CONCAT(x,y) x ## y 54 # define __STRING(x) #x 55 #else 56 # define __CONCAT(x,y) x/**/y 57 # define __STRING(x) "x" 58 #endif 59 60 #ifndef _ALIGN_TEXT 61 # define _ALIGN_TEXT .align 0 62 #endif 63 64 /* 65 * gas/arm uses @ as a single comment character and thus cannot be used here 66 * Instead it recognised the # instead of an @ symbols in .type directives 67 * We define a couple of macros so that assembly code will not be dependant 68 * on one or the other. 69 */ 70 #define _ASM_TYPE_FUNCTION #function 71 #define _ASM_TYPE_OBJECT #object 72 #define _ENTRY(x) \ 73 .text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x: .fnstart 74 75 #define _ASM_SIZE(x) .size x, .-x; 76 77 #define _END(x) \ 78 .fnend; \ 79 _ASM_SIZE(x) 80 81 #ifdef GPROF 82 # ifdef __ELF__ 83 # define _PROF_PROLOGUE \ 84 mov ip, lr; bl __mcount 85 # else 86 # define _PROF_PROLOGUE \ 87 mov ip,lr; bl mcount 88 # endif 89 #else 90 # define _PROF_PROLOGUE 91 #endif 92 93 #define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE 94 #define ENTRY_NP(y) _ENTRY(_C_LABEL(y)) 95 #define END(y) _END(_C_LABEL(y)) 96 #define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE 97 #define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y)) 98 #define ASEND(y) _END(_ASM_LABEL(y)) 99 100 #ifdef __ELF__ 101 #define ENTRY_PRIVATE(y) ENTRY(y); .hidden _C_LABEL(y) 102 #else 103 #define ENTRY_PRIVATE(y) ENTRY(y) 104 #endif 105 106 #define ASMSTR .asciz 107 108 #if defined(__ELF__) && defined(PIC) 109 #ifdef __STDC__ 110 #define PIC_SYM(x,y) x ## ( ## y ## ) 111 #else 112 #define PIC_SYM(x,y) x/**/(/**/y/**/) 113 #endif 114 #else 115 #define PIC_SYM(x,y) x 116 #endif 117 118 #ifdef __ELF__ 119 #define RCSID(x) .section ".ident"; .asciz x 120 #else 121 #define RCSID(x) .text; .asciz x 122 #endif 123 124 #ifdef __ELF__ 125 #define WEAK_ALIAS(alias,sym) \ 126 .weak alias; \ 127 alias = sym 128 #endif 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 #endif /* !_ARM_ASM_H_ */ 145