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[/] [or1k/] [trunk/] [rtems/] [c/] [src/] [exec/] [score/] [cpu/] [no_cpu/] [asm.h] - Blame information for rev 208

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/*  asm.h
 *
 *  This include file attempts to address the problems
 *  caused by incompatible flavors of assemblers and
 *  toolsets.  It primarily addresses variations in the
 *  use of leading underscores on symbols and the requirement
 *  that register names be preceded by a %.
 *
 *
 *  NOTE: The spacing in the use of these macros
 *        is critical to them working as advertised.
 *
 *  COPYRIGHT:
 *
 *  This file is based on similar code found in newlib available
 *  from ftp.cygnus.com.  The file which was used had no copyright
 *  notice.  This file is freely distributable as long as the source
 *  of the file is noted.  This file is:
 *
 *  COPYRIGHT (c) 1994-1997.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  $Id: asm.h,v 1.2 2001-09-27 11:59:28 chris Exp $
 */
 
#ifndef __NO_CPU_ASM_h
#define __NO_CPU_ASM_h
 
/*
 *  Indicate we are in an assembly file and get the basic CPU definitions.
 */
 
#ifndef ASM
#define ASM
#endif
#include <rtems/score/targopts.h>
#include <rtems/score/no_cpu.h>
 
/*
 *  Recent versions of GNU cpp define variables which indicate the
 *  need for underscores and percents.  If not using GNU cpp or
 *  the version does not support this, then you will obviously
 *  have to define these as appropriate.
 */
 
#ifndef __USER_LABEL_PREFIX__
#define __USER_LABEL_PREFIX__ _
#endif
 
#ifndef __REGISTER_PREFIX__
#define __REGISTER_PREFIX__
#endif
 
/* ANSI concatenation macros.  */
 
#define CONCAT1(a, b) CONCAT2(a, b)
#define CONCAT2(a, b) a ## b
 
/* Use the right prefix for global labels.  */
 
#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
 
/* Use the right prefix for registers.  */
 
#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
 
/*
 *  define macros for all of the registers on this CPU
 *
 *  EXAMPLE:     #define d0 REG (d0)
 */
 
/*
 *  Define macros to handle section beginning and ends.
 */
 
 
#define BEGIN_CODE_DCL .text
#define END_CODE_DCL
#define BEGIN_DATA_DCL .data
#define END_DATA_DCL
#define BEGIN_CODE .text
#define END_CODE
#define BEGIN_DATA
#define END_DATA
#define BEGIN_BSS
#define END_BSS
#define END
 
/*
 *  Following must be tailor for a particular flavor of the C compiler.
 *  They may need to put underscores in front of the symbols.
 */
 
#define PUBLIC(sym) .globl SYM (sym)
#define EXTERN(sym) .globl SYM (sym)
 
#endif
/* end of include file */
 
 

Line No.	Rev	Author	Line
1	158	chris	`/* asm.h`
2			`*`
3			`* This include file attempts to address the problems`
4			`* caused by incompatible flavors of assemblers and`
5			`* toolsets. It primarily addresses variations in the`
6			`* use of leading underscores on symbols and the requirement`
7			`* that register names be preceded by a %.`
8			`*`
9			`*`
10			`* NOTE: The spacing in the use of these macros`
11			`* is critical to them working as advertised.`
12			`*`
13			`* COPYRIGHT:`
14			`*`
15			`* This file is based on similar code found in newlib available`
16			`* from ftp.cygnus.com. The file which was used had no copyright`
17			`* notice. This file is freely distributable as long as the source`
18			`* of the file is noted. This file is:`
19			`*`
20			`* COPYRIGHT (c) 1994-1997.`
21			`* On-Line Applications Research Corporation (OAR).`
22			`*`
23	208	chris	`* $Id: asm.h,v 1.2 2001-09-27 11:59:28 chris Exp $`
24	158	chris	`*/`
25
26			`#ifndef __NO_CPU_ASM_h`
27			`#define __NO_CPU_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			`#include <rtems/score/targopts.h>`
37			`#include <rtems/score/no_cpu.h>`
38
39			`/*`
40			`* Recent versions of GNU cpp define variables which indicate the`
41			`* need for underscores and percents. If not using GNU cpp or`
42			`* the version does not support this, then you will obviously`
43			`* have to define these as appropriate.`
44			`*/`
45
46			`#ifndef __USER_LABEL_PREFIX__`
47			`#define __USER_LABEL_PREFIX__ _`
48			`#endif`
49
50			`#ifndef __REGISTER_PREFIX__`
51			`#define __REGISTER_PREFIX__`
52			`#endif`
53
54			`/* ANSI concatenation macros. */`
55
56			`#define CONCAT1(a, b) CONCAT2(a, b)`
57			`#define CONCAT2(a, b) a ## b`
58
59			`/* Use the right prefix for global labels. */`
60
61			`#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)`
62
63			`/* Use the right prefix for registers. */`
64
65			`#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)`
66
67			`/*`
68			`* define macros for all of the registers on this CPU`
69			`*`
70			`* EXAMPLE: #define d0 REG (d0)`
71			`*/`
72
73			`/*`
74			`* Define macros to handle section beginning and ends.`
75			`*/`
76
77
78			`#define BEGIN_CODE_DCL .text`
79			`#define END_CODE_DCL`
80			`#define BEGIN_DATA_DCL .data`
81			`#define END_DATA_DCL`
82			`#define BEGIN_CODE .text`
83			`#define END_CODE`
84			`#define BEGIN_DATA`
85			`#define END_DATA`
86			`#define BEGIN_BSS`
87			`#define END_BSS`
88			`#define END`
89
90			`/*`
91			`* Following must be tailor for a particular flavor of the C compiler.`
92			`* They may need to put underscores in front of the symbols.`
93			`*/`
94
95			`#define PUBLIC(sym) .globl SYM (sym)`
96			`#define EXTERN(sym) .globl SYM (sym)`
97
98			`#endif`
99			`/* end of include file */`
100
101

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[/] [or1k/] [trunk/] [rtems/] [c/] [src/] [exec/] [score/] [cpu/] [no_cpu/] [asm.h] - Blame information for rev 208