sys/arch/vax/include/asm.h

   1 /*      $NetBSD: asm.h,v 1.20 2008/08/29 18:25:01 matt Exp $ */
   2 /*
   3  * Copyright (c) 1982, 1993
   4  *      The Regents of the University of California.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. Neither the name of the University nor the names of its contributors
  15  *    may be used to endorse or promote products derived from this software
  16  *    without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  *      @(#)DEFS.h      8.1 (Berkeley) 6/4/93
  31  */
  32
  33 #ifndef _VAX_ASM_H_
  34 #define _VAX_ASM_H_
  35
  36 #define R0      0x001
  37 #define R1      0x002
  38 #define R2      0x004
  39 #define R3      0x008
  40 #define R4      0x010
  41 #define R5      0x020
  42 #define R6      0x040
  43 #define R7      0x080
  44 #define R8      0x100
  45 #define R9      0x200
  46 #define R10     0x400
  47 #define R11     0x800
  48
  49 #define _C_LABEL(x)     x
  50
  51 #define _ASM_LABEL(x)   x
  52
  53 #ifdef __STDC__
  54 # define __CONCAT(x,y)  x ## y
  55 # define __STRING(x)    #x
  56 #else
  57 # define __CONCAT(x,y)  x/**/y
  58 # define __STRING(x)    "x"
  59 #endif
  60
  61 /* let kernels and others override entrypoint alignment */
  62 #ifndef _ALIGN_TEXT
  63 # define _ALIGN_TEXT .align 4
  64 #endif
  65
  66 #define _ENTRY(x, regs) \
  67         .text; _ALIGN_TEXT; .globl x; .type x@function; x: .word regs
  68
  69 #ifdef GPROF
  70 # define _PROF_PROLOGUE \
  71         .data; 1:; .long 0; .text; moval 1b,%r0; jsb _ASM_LABEL(__mcount)
  72 #else
  73 # define _PROF_PROLOGUE
  74 #endif
  75
  76 #define ENTRY(x, regs)          _ENTRY(_C_LABEL(x), regs); _PROF_PROLOGUE
  77 #define NENTRY(x, regs)         _ENTRY(_C_LABEL(x), regs)
  78 #define ASENTRY(x, regs)        _ENTRY(_ASM_LABEL(x), regs); _PROF_PROLOGUE
  79
  80 #define ALTENTRY(x)             .globl _C_LABEL(x); _C_LABEL(x):
  81 #define RCSID(name)             .pushsection ".ident"; .asciz name; .popsection
  82
  83
  84 #define WEAK_ALIAS(alias,sym)                                           \
  85         .weak alias;                                                    \
  86         alias = sym
  87
  88 /*
  89  * STRONG_ALIAS: create a strong alias.
  90  */
  91 #define STRONG_ALIAS(alias,sym)                                         \
  92         .globl alias;                                                   \
  93         alias = sym
  94
  95 #ifdef __STDC__
  96 #define WARN_REFERENCES(sym,msg)                                        \
  97         .stabs msg ## ,30,0,0,0 ;                                       \
  98         .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0
  99 #else
 100 #define WARN_REFERENCES(sym,msg)                                        \
 101         .stabs msg,30,0,0,0 ;                                           \
 102         .stabs __STRING(_C_LABEL(sym)),1,0,0,0
 103 #endif /* __STDC__ */
 104
 105 #endif /* !_VAX_ASM_H_ */