2aa62f2bc9
This set of three packages: AppPkg, StdLib, StdLibPrivateInternalFiles; contains the implementation of libraries based upon non-UEFI standards such as ISO/IEC-9899, the library portion of the C Language Standard, POSIX, etc. AppPkg contains applications that make use of the standard libraries defined in the StdLib Package. StdLib contains header (include) files and the implementations of the standard libraries. StdLibPrivateInternalFiles contains files for the exclusive use of the library implementations in StdLib. These files should never be directly referenced from applications or other code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11600 6f19259b-4bc3-4df7-8a09-765794883524
168 lines
4.6 KiB
C
168 lines
4.6 KiB
C
/* $NetBSD: asm.h,v 1.8 2006/01/20 22:02:40 christos 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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#ifndef _ARM32_ASM_H_
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#define _ARM32_ASM_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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#ifdef __STDC__
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# define __CONCAT(x,y) x ## y
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# define __STRING(x) #x
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#else
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# define __CONCAT(x,y) x/**/y
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# define __STRING(x) "x"
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#endif
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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 _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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# ifdef __ELF__
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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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mov ip,lr; bl mcount
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# endif
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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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#ifdef __ELF__
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#define RCSID(x) .section ".ident"; .asciz x
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#else
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#define RCSID(x) .text; .asciz x
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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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/*
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* STRONG_ALIAS: create a strong alias.
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*/
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#define STRONG_ALIAS(alias,sym) \
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.globl alias; \
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alias = sym
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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__)
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#define _ARM_ARCH_5
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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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# 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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# 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 /* !_ARM_ASM_H_ */
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