/* $NetBSD: asm.h,v 1.8 2006/01/20 22:02:40 christos Exp $ */ | |
/* | |
* Copyright (c) 1990 The Regents of the University of California. | |
* All rights reserved. | |
* | |
* This code is derived from software contributed to Berkeley by | |
* William Jolitz. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* 3. Neither the name of the University nor the names of its contributors | |
* may be used to endorse or promote products derived from this software | |
* without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
* SUCH DAMAGE. | |
* | |
* from: @(#)asm.h 5.5 (Berkeley) 5/7/91 | |
*/ | |
#ifndef _ARM32_ASM_H_ | |
#define _ARM32_ASM_H_ | |
#ifdef __ELF__ | |
# define _C_LABEL(x) x | |
#else | |
# ifdef __STDC__ | |
# define _C_LABEL(x) _ ## x | |
# else | |
# define _C_LABEL(x) _/**/x | |
# endif | |
#endif | |
#define _ASM_LABEL(x) x | |
#ifdef __STDC__ | |
# define __CONCAT(x,y) x ## y | |
# define __STRING(x) #x | |
#else | |
# define __CONCAT(x,y) x/**/y | |
# define __STRING(x) "x" | |
#endif | |
#ifndef _ALIGN_TEXT | |
# define _ALIGN_TEXT .align 0 | |
#endif | |
/* | |
* gas/arm uses @ as a single comment character and thus cannot be used here | |
* Instead it recognised the # instead of an @ symbols in .type directives | |
* We define a couple of macros so that assembly code will not be dependant | |
* on one or the other. | |
*/ | |
#define _ASM_TYPE_FUNCTION #function | |
#define _ASM_TYPE_OBJECT #object | |
#define _ENTRY(x) \ | |
.text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x: | |
#ifdef GPROF | |
# ifdef __ELF__ | |
# define _PROF_PROLOGUE \ | |
mov ip, lr; bl __mcount | |
# else | |
# define _PROF_PROLOGUE \ | |
mov ip,lr; bl mcount | |
# endif | |
#else | |
# define _PROF_PROLOGUE | |
#endif | |
#define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE | |
#define ENTRY_NP(y) _ENTRY(_C_LABEL(y)) | |
#define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE | |
#define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y)) | |
#define ASMSTR .asciz | |
#if defined(__ELF__) && defined(PIC) | |
#ifdef __STDC__ | |
#define PIC_SYM(x,y) x ## ( ## y ## ) | |
#else | |
#define PIC_SYM(x,y) x/**/(/**/y/**/) | |
#endif | |
#else | |
#define PIC_SYM(x,y) x | |
#endif | |
#ifdef __ELF__ | |
#define RCSID(x) .section ".ident"; .asciz x | |
#else | |
#define RCSID(x) .text; .asciz x | |
#endif | |
#ifdef __ELF__ | |
#define WEAK_ALIAS(alias,sym) \ | |
.weak alias; \ | |
alias = sym | |
#endif | |
/* | |
* STRONG_ALIAS: create a strong alias. | |
*/ | |
#define STRONG_ALIAS(alias,sym) \ | |
.globl alias; \ | |
alias = sym | |
#ifdef __STDC__ | |
#define WARN_REFERENCES(sym,msg) \ | |
.stabs msg ## ,30,0,0,0 ; \ | |
.stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0 | |
#elif defined(__ELF__) | |
#define WARN_REFERENCES(sym,msg) \ | |
.stabs msg,30,0,0,0 ; \ | |
.stabs __STRING(sym),1,0,0,0 | |
#else | |
#define WARN_REFERENCES(sym,msg) \ | |
.stabs msg,30,0,0,0 ; \ | |
.stabs __STRING(_/**/sym),1,0,0,0 | |
#endif /* __STDC__ */ | |
#if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) | |
#define _ARM_ARCH_6 | |
#endif | |
#if defined (_ARM_ARCH_6) || defined (__ARM_ARCH_5__) || \ | |
defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5TE__) || \ | |
defined (__ARM_ARCH_5TEJ__) | |
#define _ARM_ARCH_5 | |
#endif | |
#if defined (_ARM_ARCH_5) || defined (__ARM_ARCH_4T__) | |
#define _ARM_ARCH_4T | |
#endif | |
#if defined (_ARM_ARCH_4T) | |
# define RET bx lr | |
# ifdef __STDC__ | |
# define RETc(c) bx##c lr | |
# else | |
# define RETc(c) bx/**/c lr | |
# endif | |
#else | |
# define RET mov pc, lr | |
# ifdef __STDC__ | |
# define RETc(c) mov##c pc, lr | |
# else | |
# define RETc(c) mov/**/c pc, lr | |
# endif | |
#endif | |
#endif /* !_ARM_ASM_H_ */ |