The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/arm/include/asm.h

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    1 /*      $NetBSD: asm.h,v 1.5 2003/08/07 16:26:53 agc Exp $      */
    2 
    3 /*-
    4  * Copyright (c) 1990 The Regents of the University of California.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to Berkeley by
    8  * William Jolitz.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. Neither the name of the University nor the names of its contributors
   19  *    may be used to endorse or promote products derived from this software
   20  *    without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  *      from: @(#)asm.h 5.5 (Berkeley) 5/7/91
   35  *
   36  * $FreeBSD: releng/6.3/sys/arm/include/asm.h 139735 2005-01-05 21:58:49Z imp $
   37  */
   38 
   39 #ifndef _MACHINE_ASM_H_
   40 #define _MACHINE_ASM_H_
   41 #include <sys/cdefs.h>
   42 
   43 #ifdef __ELF__
   44 # define _C_LABEL(x)    x
   45 #else
   46 # ifdef __STDC__
   47 #  define _C_LABEL(x)   _ ## x
   48 # else
   49 #  define _C_LABEL(x)   _/**/x
   50 # endif
   51 #endif
   52 #define _ASM_LABEL(x)   x
   53 
   54 #ifndef _JB_MAGIC__SETJMP
   55 #define _JB_MAGIC__SETJMP       0x4278f500
   56 #define _JB_MAGIC_SETJMP        0x4278f501
   57 #endif
   58 #if 0
   59 #ifdef __STDC__
   60 # define __CONCAT(x,y)  x ## y
   61 # define __STRING(x)    #x
   62 #else
   63 # define __CONCAT(x,y)  x/**/y
   64 # define __STRING(x)    "x"
   65 #endif
   66 #endif
   67 
   68 #define I32_bit (1 << 7)        /* IRQ disable */
   69 #define F32_bit (1 << 6)        /* FIQ disable */
   70 
   71 #define CPU_CONTROL_32BP_ENABLE 0x00000010 /* P: 32-bit exception handlers */
   72 #define CPU_CONTROL_32BD_ENABLE 0x00000020 /* D: 32-bit addressing */
   73 
   74 #ifndef _ALIGN_TEXT
   75 # define _ALIGN_TEXT .align 0
   76 #endif
   77 
   78 /*
   79  * gas/arm uses @ as a single comment character and thus cannot be used here
   80  * Instead it recognised the # instead of an @ symbols in .type directives
   81  * We define a couple of macros so that assembly code will not be dependant
   82  * on one or the other.
   83  */
   84 #define _ASM_TYPE_FUNCTION      #function
   85 #define _ASM_TYPE_OBJECT        #object
   86 #define GLOBAL(X) .globl x
   87 #define _ENTRY(x) \
   88         .text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x:
   89 
   90 #ifdef GPROF
   91 #  define _PROF_PROLOGUE        \
   92         mov ip, lr; bl _mcount
   93 #else
   94 # define _PROF_PROLOGUE
   95 #endif
   96 
   97 #define ENTRY(y)        _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
   98 #define ENTRY_NP(y)     _ENTRY(_C_LABEL(y))
   99 #define ASENTRY(y)      _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
  100 #define ASENTRY_NP(y)   _ENTRY(_ASM_LABEL(y))
  101 
  102 #define ASMSTR          .asciz
  103 
  104 #if defined(__ELF__) && defined(PIC)
  105 #ifdef __STDC__
  106 #define PIC_SYM(x,y)    x ## ( ## y ## )
  107 #else
  108 #define PIC_SYM(x,y)    x/**/(/**/y/**/)
  109 #endif
  110 #else
  111 #define PIC_SYM(x,y)    x
  112 #endif
  113 
  114 #undef __FBSDID
  115 #if !defined(lint) && !defined(STRIP_FBSDID)
  116 #define __FBSDID(s)     .ident s
  117 #else
  118 #define __FBSDID(s)     /* nothing */
  119 #endif
  120         
  121 
  122 #ifdef __ELF__
  123 #define WEAK_ALIAS(alias,sym)                                           \
  124         .weak alias;                                                    \
  125         alias = sym
  126 #endif
  127 
  128 #ifdef __STDC__
  129 #define WARN_REFERENCES(sym,msg)                                        \
  130         .stabs msg ## ,30,0,0,0 ;                                       \
  131         .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0
  132 #elif defined(__ELF__)
  133 #define WARN_REFERENCES(sym,msg)                                        \
  134         .stabs msg,30,0,0,0 ;                                           \
  135         .stabs __STRING(sym),1,0,0,0
  136 #else
  137 #define WARN_REFERENCES(sym,msg)                                        \
  138         .stabs msg,30,0,0,0 ;                                           \
  139         .stabs __STRING(_/**/sym),1,0,0,0
  140 #endif /* __STDC__ */
  141 
  142 
  143 #if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__)
  144 #define _ARM_ARCH_6
  145 #endif
  146 
  147 #if defined (_ARM_ARCH_6) || defined (__ARM_ARCH_5__) || \
  148     defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5TE__) || \
  149     defined (__ARM_ARCH_5TEJ__)
  150 #define _ARM_ARCH_5
  151 #endif
  152 
  153 #if defined (_ARM_ARCH_5) || defined (__ARM_ARCH_4T__)
  154 #define _ARM_ARCH_4T
  155 #endif
  156 
  157 
  158 #if defined (_ARM_ARCH_4T)
  159 # define RET    bx      lr
  160 # define RETeq  bxeq    lr
  161 # define RETne  bxne    lr
  162 # ifdef __STDC__
  163 #  define RETc(c) bx##c lr
  164 # else
  165 #  define RETc(c) bx/**/c       lr
  166 # endif
  167 #else
  168 # define RET    mov     pc, lr
  169 # define RETeq  moveq   pc, lr
  170 # define RETne  movne   pc, lr
  171 # ifdef __STDC__
  172 #  define RETc(c) mov##c        pc, lr
  173 # else
  174 #  define RETc(c) mov/**/c      pc, lr
  175 # endif
  176 #endif
  177 
  178 #endif /* !_MACHINE_ASM_H_ */

Cache object: 31838f421d2a949c018c1a867bb027ef


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