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)
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32 * from: @(#)DEFS.h 5.1 (Berkeley) 4/23/90
36 #ifndef _MACHINE_ASM_H_
37 #define _MACHINE_ASM_H_
39 #include <sys/cdefs.h>
42 #define PIC_PROLOGUE \
47 addl $_GLOBAL_OFFSET_TABLE_+[.-1b],%ebx
48 #define PIC_EPILOGUE \
50 #define PIC_PLT(x) x@PLT
51 #define PIC_GOT(x) x@GOT(%ebx)
52 #define PIC_GOTOFF(x) x@GOTOFF(%ebx)
57 #define PIC_GOTOFF(x) x
61 * CNAME and HIDENAME manage the relationship between symbol names in C
62 * and the equivalent assembly language names. CNAME is given a name as
63 * it would be used in a C program. It expands to the equivalent assembly
64 * language name. HIDENAME is given an assembly-language name, and expands
65 * to a possibly-modified form that will be invisible to C programs.
67 #define CNAME(csym) csym
68 #define HIDENAME(asmsym) .asmsym
70 /* XXX should use .p2align 4,0x90 for -m486. */
71 #define _START_ENTRY .text; .p2align 2,0x90
73 #define _ENTRY(x) _START_ENTRY; \
74 .globl CNAME(x); .type CNAME(x),@function; CNAME(x):
75 #define END(x) .size x, . - x
78 #define ALTENTRY(x) _ENTRY(x); \
79 pushl %ebp; movl %esp,%ebp; \
80 call PIC_PLT(HIDENAME(mcount)); \
83 #define ENTRY(x) _ENTRY(x); \
84 pushl %ebp; movl %esp,%ebp; \
85 call PIC_PLT(HIDENAME(mcount)); \
89 #define ALTENTRY(x) _ENTRY(x)
90 #define ENTRY(x) _ENTRY(x)
94 * WEAK_ALIAS: create a weak alias.
96 #define WEAK_ALIAS(alias,sym) \
101 * STRONG_ALIAS: create a strong alias.
103 #define STRONG_ALIAS(alias,sym) \
107 #define RCSID(x) .text; .asciz x
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_ */