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  * $FreeBSD$
   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 
   59 #define I32_bit (1 << 7)        /* IRQ disable */
   60 #define F32_bit (1 << 6)        /* FIQ disable */
   61 
   62 #define CPU_CONTROL_32BP_ENABLE 0x00000010 /* P: 32-bit exception handlers */
   63 #define CPU_CONTROL_32BD_ENABLE 0x00000020 /* D: 32-bit addressing */
   64 
   65 #ifndef _ALIGN_TEXT
   66 # define _ALIGN_TEXT .align 0
   67 #endif
   68 
   69 /*
   70  * gas/arm uses @ as a single comment character and thus cannot be used here
   71  * Instead it recognised the # instead of an @ symbols in .type directives
   72  * We define a couple of macros so that assembly code will not be dependant
   73  * on one or the other.
   74  */
   75 #define _ASM_TYPE_FUNCTION      #function
   76 #define _ASM_TYPE_OBJECT        #object
   77 #define GLOBAL(X) .globl x
   78 #define _ENTRY(x) \
   79         .text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x:
   80 
   81 #ifdef GPROF
   82 #  define _PROF_PROLOGUE        \
   83         mov ip, lr; bl __mcount
   84 #else
   85 # define _PROF_PROLOGUE
   86 #endif
   87 
   88 #define ENTRY(y)        _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
   89 #define ENTRY_NP(y)     _ENTRY(_C_LABEL(y))
   90 #define ASENTRY(y)      _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
   91 #define ASENTRY_NP(y)   _ENTRY(_ASM_LABEL(y))
   92 
   93 #define ASMSTR          .asciz
   94 
   95 #if defined(__ELF__) && defined(PIC)
   96 #ifdef __STDC__
   97 #define PIC_SYM(x,y)    x ## ( ## y ## )
   98 #else
   99 #define PIC_SYM(x,y)    x/**/(/**/y/**/)
  100 #endif
  101 #else
  102 #define PIC_SYM(x,y)    x
  103 #endif
  104 
  105 #undef __FBSDID
  106 #if !defined(lint) && !defined(STRIP_FBSDID)
  107 #define __FBSDID(s)     .ident s
  108 #else
  109 #define __FBSDID(s)     /* nothing */
  110 #endif
  111         
  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 
  134 #if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__)
  135 #define _ARM_ARCH_6
  136 #endif
  137 
  138 #if defined (_ARM_ARCH_6) || defined (__ARM_ARCH_5__) || \
  139     defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5TE__) || \
  140     defined (__ARM_ARCH_5TEJ__) || defined (__ARM_ARCH_5E__)
  141 #define _ARM_ARCH_5
  142 #endif
  143 
  144 #if defined (_ARM_ARCH_6) || defined(__ARM_ARCH_5TE__) || \
  145     defined(__ARM_ARCH_5TEJ__) || defined(__ARM_ARCH_5E__)
  146 #define _ARM_ARCH_5E
  147 #endif
  148 
  149 #if defined (_ARM_ARCH_5) || defined (__ARM_ARCH_4T__)
  150 #define _ARM_ARCH_4T
  151 #endif
  152 
  153 
  154 #if defined (_ARM_ARCH_4T)
  155 # define RET    bx      lr
  156 # define RETeq  bxeq    lr
  157 # define RETne  bxne    lr
  158 # ifdef __STDC__
  159 #  define RETc(c) bx##c lr
  160 # else
  161 #  define RETc(c) bx/**/c       lr
  162 # endif
  163 #else
  164 # define RET    mov     pc, lr
  165 # define RETeq  moveq   pc, lr
  166 # define RETne  movne   pc, lr
  167 # ifdef __STDC__
  168 #  define RETc(c) mov##c        pc, lr
  169 # else
  170 #  define RETc(c) mov/**/c      pc, lr
  171 # endif
  172 #endif
  173 
  174 #endif /* !_MACHINE_ASM_H_ */

Cache object: 56e70e2c6f22099019d514f361ba8402


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