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 * $FreeBSD: src/sys/i386/include/asm.h,v 1.7 2000/01/25 09:01:55 bde Exp $
34 * $DragonFly: src/sys/cpu/i386/include/asm.h,v 1.4 2006/11/07 06:43:22 dillon Exp $
40 #include <sys/cdefs.h>
43 #define PIC_PROLOGUE \
48 addl $_GLOBAL_OFFSET_TABLE_+[.-1b],%ebx
49 #define PIC_EPILOGUE \
51 #define PIC_PLT(x) x@PLT
52 #define PIC_GOT(x) x@GOT(%ebx)
53 #define PIC_GOTOFF(x) x@GOTOFF(%ebx)
59 #define PIC_GOTOFF(x) x
63 * CNAME and HIDENAME manage the relationship between symbol names in C
64 * and the equivalent assembly language names. CNAME is given a name as
65 * it would be used in a C program. It expands to the equivalent assembly
66 * language name. HIDENAME is given an assembly-language name, and expands
67 * to a possibly-modified form that will be invisible to C programs.
69 #define CNAME(csym) csym
70 #define HIDENAME(asmsym) .asmsym
72 /* XXX should use .p2align 4,0x90 for -m486. */
73 #define _START_ENTRY .text; .p2align 2,0x90
75 #define _ENTRY(x) _START_ENTRY; \
76 .globl CNAME(x); .type CNAME(x),@function; CNAME(x):
79 #define ALTENTRY(x) _ENTRY(x); \
80 pushl %ebp; movl %esp,%ebp; \
81 call PIC_PLT(HIDENAME(mcount)); \
84 #define ENTRY(x) _ENTRY(x); \
85 pushl %ebp; movl %esp,%ebp; \
86 call PIC_PLT(HIDENAME(mcount)); \
90 #define ALTENTRY(x) _ENTRY(x)
91 #define ENTRY(x) _ENTRY(x)
94 #define RCSID(x) .text; .asciz x
96 #endif /* !_CPU_ASM_H_ */