175 lines
4.9 KiB
C
175 lines
4.9 KiB
C
/* $NetBSD: asm.h,v 1.5 2003/08/07 16:26:53 agc Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)asm.h 5.5 (Berkeley) 5/7/91
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*
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* $FreeBSD: src/sys/arm/include/asm.h,v 1.7 2007/10/13 12:04:10 cognet Exp $
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*/
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#ifndef _MACHINE_ASM_H_
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#define _MACHINE_ASM_H_
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#include <sys/cdefs.h>
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#ifdef __ELF__
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# define _C_LABEL(x) x
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#else
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# ifdef __STDC__
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# define _C_LABEL(x) _ ## x
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# else
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# define _C_LABEL(x) _/**/x
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# endif
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#endif
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#define _ASM_LABEL(x) x
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#ifndef _JB_MAGIC__SETJMP
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#define _JB_MAGIC__SETJMP 0x4278f500
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#define _JB_MAGIC_SETJMP 0x4278f501
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#endif
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#define I32_bit (1 << 7) /* IRQ disable */
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#define F32_bit (1 << 6) /* FIQ disable */
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#define CPU_CONTROL_32BP_ENABLE 0x00000010 /* P: 32-bit exception handlers */
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#define CPU_CONTROL_32BD_ENABLE 0x00000020 /* D: 32-bit addressing */
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#ifndef _ALIGN_TEXT
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# define _ALIGN_TEXT .align 0
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#endif
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/*
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* gas/arm uses @ as a single comment character and thus cannot be used here
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* Instead it recognised the # instead of an @ symbols in .type directives
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* We define a couple of macros so that assembly code will not be dependant
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* on one or the other.
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*/
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#define _ASM_TYPE_FUNCTION #function
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#define _ASM_TYPE_OBJECT #object
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#define GLOBAL(X) .globl x
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#define _ENTRY(x) \
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.text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x:
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#ifdef GPROF
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# define _PROF_PROLOGUE \
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mov ip, lr; bl __mcount
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#else
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# define _PROF_PROLOGUE
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#endif
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#define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
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#define ENTRY_NP(y) _ENTRY(_C_LABEL(y))
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#define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
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#define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y))
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#define ASMSTR .asciz
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#if defined(__ELF__) && defined(PIC)
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#ifdef __STDC__
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#define PIC_SYM(x,y) x ## ( ## y ## )
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#else
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#define PIC_SYM(x,y) x/**/(/**/y/**/)
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#endif
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#else
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#define PIC_SYM(x,y) x
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#endif
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#undef __FBSDID
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#if !defined(lint) && !defined(STRIP_FBSDID)
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#define __FBSDID(s) .ident s
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#else
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#define __FBSDID(s) /* nothing */
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#endif
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#ifdef __ELF__
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#define WEAK_ALIAS(alias,sym) \
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.weak alias; \
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alias = sym
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#endif
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#ifdef __STDC__
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#define WARN_REFERENCES(sym,msg) \
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.stabs msg ## ,30,0,0,0 ; \
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.stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0
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#elif defined(__ELF__)
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#define WARN_REFERENCES(sym,msg) \
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.stabs msg,30,0,0,0 ; \
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.stabs __STRING(sym),1,0,0,0
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#else
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#define WARN_REFERENCES(sym,msg) \
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.stabs msg,30,0,0,0 ; \
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.stabs __STRING(_/**/sym),1,0,0,0
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#endif /* __STDC__ */
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#if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__)
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#define _ARM_ARCH_6
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#endif
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#if defined (_ARM_ARCH_6) || defined (__ARM_ARCH_5__) || \
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defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5TE__) || \
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defined (__ARM_ARCH_5TEJ__) || defined (__ARM_ARCH_5E__)
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#define _ARM_ARCH_5
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#endif
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#if defined (_ARM_ARCH_6) || defined(__ARM_ARCH_5TE__) || \
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defined(__ARM_ARCH_5TEJ__) || defined(__ARM_ARCH_5E__)
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#define _ARM_ARCH_5E
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#endif
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#if defined (_ARM_ARCH_5) || defined (__ARM_ARCH_4T__)
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#define _ARM_ARCH_4T
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#endif
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#if defined (_ARM_ARCH_4T)
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# define RET bx lr
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# define RETeq bxeq lr
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# define RETne bxne lr
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# ifdef __STDC__
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# define RETc(c) bx##c lr
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# else
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# define RETc(c) bx/**/c lr
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# endif
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#else
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# define RET mov pc, lr
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# define RETeq moveq pc, lr
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# define RETne movne pc, lr
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# ifdef __STDC__
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# define RETc(c) mov##c pc, lr
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# else
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# define RETc(c) mov/**/c pc, lr
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# endif
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#endif
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#endif /* !_MACHINE_ASM_H_ */
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