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