RTEMS: cpukit/score/cpu/sparc64/include/rtems/asm.h Source File

| RTEMS 5.4-rc2

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asm.h
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1
17/*
18 * COPYRIGHT:
19 *
20 * This file is based on similar code found in newlib available
21 * from ftp.cygnus.com. The file which was used had no copyright
22 * notice. This file is freely distributable as long as the source
23 * of the file is noted.
24 */
25
26#ifndef _RTEMS_ASM_H
27#define _RTEMS_ASM_H
28
29/*
30 * Indicate we are in an assembly file and get the basic CPU definitions.
31 */
32
33#ifndef ASM
34#define ASM
35#endif
36#ifndef __ASM__
37#define __ASM__
38#endif
39
40#include <rtems/score/cpuopts.h>
41#include <rtems/score/cpu.h>
42
53/*
54 * Recent versions of GNU cpp define variables which indicate the
55 * need for underscores and percents. If not using GNU cpp or
56 * the version does not support this, then you will obviously
57 * have to define these as appropriate.
58 */
59
60/* XXX __USER_LABEL_PREFIX__ and __REGISTER_PREFIX__ do not work on gcc 2.7.0 */
61/* XXX The following ifdef magic fixes the problem but results in a warning */
62/* XXX when compiling assembly code. */
63
64#ifndef __USER_LABEL_PREFIX__
65#define __USER_LABEL_PREFIX__ _
66#endif
67
68#ifndef __REGISTER_PREFIX__
69#define __REGISTER_PREFIX__
70#endif
71
72#include <rtems/concat.h>
73
74/* Use the right prefix for global labels. */
75
76#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
77
78/* Use the right prefix for registers. */
79
80#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
81
82/*
83 * define macros for all of the registers on this CPU
84 *
85 * EXAMPLE: #define d0 REG (d0)
86 */
87
88/*
89 * Define macros to handle section beginning and ends.
90 */
91
92
93#define BEGIN_CODE_DCL .text
94#define END_CODE_DCL
95#define BEGIN_DATA_DCL .data
96#define END_DATA_DCL
97#define BEGIN_CODE .text
98#define END_CODE
99#define BEGIN_DATA
100#define END_DATA
101#define BEGIN_BSS
102#define END_BSS
103#define END
104
105/*
106 * Following must be tailor for a particular flavor of the C compiler.
107 * They may need to put underscores in front of the symbols.
108 */
109
110#define PUBLIC(sym) .globl SYM (sym)
111#define EXTERN(sym) .globl SYM (sym)
112
113#endif
114
concat.h