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Annotation of sys/arch/vax/include/asm.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: asm.h,v 1.8 2003/06/02 23:27:57 millert Exp $ */
                      2: /*     $NetBSD: asm.h,v 1.9 1999/01/15 13:31:28 bouyer Exp $ */
                      3: /*
                      4:  * Copyright (c) 1982, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  * 3. Neither the name of the University nor the names of its contributors
                     16:  *    may be used to endorse or promote products derived from this software
                     17:  *    without specific prior written permission.
                     18:  *
                     19:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     29:  * SUCH DAMAGE.
                     30:  *
                     31:  *     @(#)DEFS.h      8.1 (Berkeley) 6/4/93
                     32:  */
                     33:
                     34: #ifndef _MACHINE_ASM_H_
                     35: #define _MACHINE_ASM_H_
                     36:
                     37: #define R0     0x001
                     38: #define R1     0x002
                     39: #define R2     0x004
                     40: #define R3     0x008
                     41: #define R4     0x010
                     42: #define R5     0x020
                     43: #define R6     0x040
                     44: #define R7     0x080
                     45: #define R8     0x100
                     46: #define R9     0x200
                     47: #define R10    0x400
                     48: #define R11    0x800
                     49:
                     50: #ifdef __ELF__
                     51: # define _C_LABEL(x)   x
                     52: #else
                     53: # ifdef __STDC__
                     54: #  define _C_LABEL(x)  _ ## x
                     55: # else
                     56: #  define _C_LABEL(x)  _/**/x
                     57: # endif
                     58: #endif
                     59:
                     60: #define        _ASM_LABEL(x)   x
                     61:
                     62: #ifdef __STDC__
                     63: # define __CONCAT(x,y) x ## y
                     64: # define __STRING(x)   #x
                     65: #else
                     66: # define __CONCAT(x,y) x/**/y
                     67: # define __STRING(x)   "x"
                     68: #endif
                     69:
                     70: /* let kernels and others override entrypoint alignment */
                     71: #ifndef _ALIGN_TEXT
                     72: # ifdef __ELF__
                     73: #  define _ALIGN_TEXT .align 4
                     74: # else
                     75: #  define _ALIGN_TEXT .align 2
                     76: # endif
                     77: #endif
                     78:
                     79: #define        _ENTRY(x, regs) \
                     80:        .text; _ALIGN_TEXT; .globl x; .type x,@function; x: .word regs
                     81:
                     82: #ifdef GPROF
                     83: # ifdef __ELF__
                     84: #  define _PROF_PROLOGUE       \
                     85:        .data; 1:; .long 0; .text; moval 1b,r0; jsb _ASM_LABEL(__mcount)
                     86: # else
                     87: #  define _PROF_PROLOGUE       \
                     88:        .data; 1:; .long 0; .text; moval 1b,r0; jsb _ASM_LABEL(mcount)
                     89: # endif
                     90: #else
                     91: # define _PROF_PROLOGUE
                     92: #endif
                     93:
                     94: #define ENTRY(x, regs)         _ENTRY(_C_LABEL(x), regs); _PROF_PROLOGUE
                     95: #define NENTRY(x, regs)                _ENTRY(_C_LABEL(x), regs)
                     96: #define ASENTRY(x, regs)       _ENTRY(_ASM_LABEL(x), regs); _PROF_PROLOGUE
                     97:
                     98: #define ALTENTRY(x)            .globl _C_LABEL(x); _C_LABEL(x):
                     99: #define RCSID(x)               .text; .asciz x
                    100:
                    101: #ifdef __ELF__
                    102: #define        WEAK_ALIAS(alias,sym)                                           \
                    103:        .weak alias;                                                    \
                    104:        alias = sym
                    105: #else
                    106: #ifdef __STDC__
                    107: #define        WEAK_ALIAS(alias,sym)                                           \
                    108:        .weak _##alias;                                                 \
                    109:        _##alias = _##sym
                    110: #else
                    111: #define        WEAK_ALIAS(alias,sym)                                           \
                    112:        .weak _/**/alias;                                               \
                    113:        _/**/alias = _/**/sym
                    114: #endif
                    115: #endif
                    116:
                    117: #ifdef __STDC__
                    118: #define        WARN_REFERENCES(sym,msg)                                        \
                    119:        .stabs msg ## ,30,0,0,0 ;                                       \
                    120:        .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0
                    121: #else
                    122: #define        WARN_REFERENCES(sym,msg)                                        \
                    123:        .stabs msg,30,0,0,0 ;                                           \
                    124:        .stabs __STRING(_C_LABEL(sym)),1,0,0,0
                    125: #endif /* __STDC__ */
                    126:
                    127: #endif /* _MACHINE_ASM_H_ */