UbixOS V2 2.0

asmacros.h
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1 /*-
2 * Copyright (c) 2002-2018 The UbixOS Project.
3 * All rights reserved.
4 *
5 * This was developed by Christopher W. Olsen for the UbixOS Project.
6 *
7 * Redistribution and use in source and binary forms, with or without modification, are permitted
8 * provided that the following conditions are met:
9 *
10 * 1) Redistributions of source code must retain the above copyright notice, this list of
11 * conditions, the following disclaimer and the list of authors.
12 * 2) Redistributions in binary form must reproduce the above copyright notice, this list of
13 * conditions, the following disclaimer and the list of authors in the documentation and/or
14 * other materials provided with the distribution.
15 * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to
16 * endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
20 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
24 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 /*
30 * asmacros.h
31 *
32 * Created on: Jan 12, 2018
33 * Author: cwolsen
34 */
35
36 #ifndef _I386_ASMACROS_H_
37 #define _I386_ASMACROS_H_
38
39 /*
40 * CNAME is used to manage the relationship between symbol names in C
41 * and the equivalent assembly language names. CNAME is given a name as
42 * it would be used in a C program. It expands to the equivalent assembly
43 * language name.
44 */
45 #define CNAME(csym) csym
46 #define ALIGN_TEXT .p2align 4,0x90 /* 16-byte alignment, nop filled */
47
48 #define GEN_ENTRY(name) ALIGN_TEXT; .globl CNAME(name); \
49 .type CNAME(name),@function; CNAME(name):
50
51 #define ENTRY(name) GEN_ENTRY(name) ; 9: ; MCOUNT
52 #define MCOUNT nop
53 #define END(name) .size name, . - name
54
55 #endif /* END _I386_ASMACROS_H_ */