2 * Copyright (c) 1990 The Regents of the University of California.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * from: @(#)DEFS.h 5.1 (Berkeley) 4/23/90
33 * from: FreeBSD: src/sys/i386/include/asm.h,v 1.7 2000/01/25
37 #ifndef _MACHINE_ASM_H_
38 #define _MACHINE_ASM_H_
42 #include <sys/cdefs.h>
45 #define PIC_PROLOGUE(r1, r2) \
46 sethi %hi(_GLOBAL_OFFSET_TABLE_-4), r1 ; \
48 or r1, %lo(_GLOBAL_OFFSET_TABLE_+4), r1 ; \
50 #define SET(name, r1, r2) \
54 #define PIC_PROLOGUE(r1, r2)
55 #define SET(name, r1, r2) \
60 * CNAME and HIDENAME manage the relationship between symbol names in C
61 * and the equivalent assembly language names. CNAME is given a name as
62 * it would be used in a C program. It expands to the equivalent assembly
63 * language name. HIDENAME is given an assembly-language name, and expands
64 * to a possibly-modified form that will be invisible to C programs.
66 #define CNAME(csym) csym
67 #define HIDENAME(asmsym) __CONCAT(.,asmsym)
72 #define _ALIGN_TEXT .align 32
74 #define _START_ENTRY \
79 * Define function entry and alternate entry points.
81 * The compiler produces #function for the .type pseudo-op, but the '#'
82 * character has special meaning in cpp macros, so we use @function like
83 * other architectures. The assembler seems to accept both.
84 * The assembler also accepts a .proc pseudo-op, which is used by the
85 * peep hole optimizer, whose argument is the type code of the return
86 * value. Since this is difficult to predict and its expected that
87 * assembler code is already optimized, we leave it out.
90 #define _ALTENTRY(x) \
92 .type CNAME(x),@function ; \
98 .type CNAME(x),@function ; \
101 #define ALTENTRY(x) _ALTENTRY(x)
102 #define ENTRY(x) _ENTRY(x)
103 #define END(x) .size x, . - x
106 * Kernel RCS ID tag and copyright macros
110 #if !defined(lint) && !defined(STRIP_FBSDID)
111 #define __FBSDID(s) .ident s
113 #define __FBSDID(s) /* nothing */
114 #endif /* not lint and not STRIP_FBSDID */
116 #endif /* !_MACHINE_ASM_H_ */