1 /*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
19 *
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
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * from: @(#)DEFS.h 5.1 (Berkeley) 4/23/90
33 * $FreeBSD: src/sys/amd64/include/asm.h,v 1.18 2007/08/22 04:26:07 jkoshy Exp $
34 */
35
36 #ifndef _MACHINE_ASM_H_
37 #define _MACHINE_ASM_H_
38
39 #include <sys/cdefs.h>
40
41 #ifdef PIC
42 #define PIC_PLT(x) x@PLT
43 #define PIC_GOT(x) x@GOTPCREL(%rip)
44 #else
45 #define PIC_PLT(x) x
46 #define PIC_GOT(x) x
47 #endif
48
49 /*
50 * CNAME and HIDENAME manage the relationship between symbol names in C
51 * and the equivalent assembly language names. CNAME is given a name as
52 * it would be used in a C program. It expands to the equivalent assembly
53 * language name. HIDENAME is given an assembly-language name, and expands
54 * to a possibly-modified form that will be invisible to C programs.
55 */
56 #define CNAME(csym) csym
57 #define HIDENAME(asmsym) .asmsym
58
59 #define _START_ENTRY .text; .p2align 4,0x90
60
61 #define _ENTRY(x) _START_ENTRY; \
62 .globl CNAME(x); .type CNAME(x),@function; CNAME(x):
63
64 #ifdef PROF
65 #define ALTENTRY(x) _ENTRY(x); \
66 pushq %rbp; movq %rsp,%rbp; \
67 call PIC_PLT(HIDENAME(mcount)); \
68 popq %rbp; \
69 jmp 9f
70 #define ENTRY(x) _ENTRY(x); \
71 pushq %rbp; movq %rsp,%rbp; \
72 call PIC_PLT(HIDENAME(mcount)); \
73 popq %rbp; \
74 9:
75 #else
76 #define ALTENTRY(x) _ENTRY(x)
77 #define ENTRY(x) _ENTRY(x)
78 #endif
79
80 #define END(x) .size x, . - x
81
82 #define RCSID(x) .text; .asciz x
83
84 #undef __FBSDID
85 #if !defined(lint) && !defined(STRIP_FBSDID)
86 #define __FBSDID(s) .ident s
87 #else
88 #define __FBSDID(s) /* nothing */
89 #endif /* not lint and not STRIP_FBSDID */
90
91 #endif /* !_MACHINE_ASM_H_ */
92 Cache object: cba5320200d7900520110e877f0d468d
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