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annotate packages/hal/common/current/include/hal_tables.h @ 124:0ec04793409a ecos-sw-2000-09-11

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Merge from eCos master repository on 2000-09-11-03:00:13-BST
author jlarmour
date Mon, 11 Sep 2000 02:42:46 +0000
parents 6bd9d475ed4b
children d60da272beeb
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1 #ifndef CYGONCE_HAL_TABLES_H
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2 #define CYGONCE_HAL_TABLES_H
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3
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4 /*==========================================================================
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5 //
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6 // hal_tables.h
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7 //
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8 // Data table management
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9 //
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10 //==========================================================================
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11 //####COPYRIGHTBEGIN####
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12 //
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13 // -------------------------------------------
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14 // The contents of this file are subject to the Red Hat eCos Public License
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15 // Version 1.1 (the "License"); you may not use this file except in
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16 // compliance with the License. You may obtain a copy of the License at
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17 // http://www.redhat.com/
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18 //
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19 // Software distributed under the License is distributed on an "AS IS"
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20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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21 // License for the specific language governing rights and limitations under
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22 // the License.
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23 //
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24 // The Original Code is eCos - Embedded Configurable Operating System,
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25 // released September 30, 1998.
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26 //
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27 // The Initial Developer of the Original Code is Red Hat.
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28 // Portions created by Red Hat are
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29 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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30 // All Rights Reserved.
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31 // -------------------------------------------
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32 //
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33 //####COPYRIGHTEND####
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34 //==========================================================================
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35 //#####DESCRIPTIONBEGIN####
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36 //
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37 // Author(s): nickg
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38 // Date: 2000-09-04
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39 // Purpose: Provide HAL tables
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40 // Description: This file defines a mechanism to include "tables" of objects
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41 // that are always included in the image no matter what, and are
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42 // constrained between labels.
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43 //
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44 // Usage: #include <cyg/hal/hal_tables.h>
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45 //
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46 //####DESCRIPTIONEND####
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47 //
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48 //========================================================================*/
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49
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50 #include <pkgconf/hal.h>
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51 #include <cyg/infra/cyg_type.h>
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52
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53 #include <cyg/hal/hal_arch.h>
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54
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55 /*------------------------------------------------------------------------*/
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56
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57 #define __string(_x) #_x
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58 #define __xstring(_x) __string(_x)
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59
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60 #ifndef CYG_HAL_TABLE_BEGIN
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61 #define CYG_HAL_TABLE_BEGIN( _label, _name ) \
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62 __asm__(".section \".ecos.table." __xstring(_name) ".begin\",\"aw\"\n" \
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63 ".globl " __xstring(CYG_LABEL_DEFN(_label)) "\n" \
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64 ".type " __xstring(CYG_LABEL_DEFN(_label)) ",@object\n" \
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65 ".p2align " __xstring(CYGARC_P2ALIGNMENT) "\n" \
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66 __xstring(CYG_LABEL_DEFN(_label)) ":\n" \
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67 ".previous\n" \
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68 )
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69 #endif
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70
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71 #ifndef CYG_HAL_TABLE_END
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72 #define CYG_HAL_TABLE_END( _label, _name ) \
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73 __asm__(".section \".ecos.table." __xstring(_name) ".finish\",\"aw\"\n" \
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74 ".globl " __xstring(CYG_LABEL_DEFN(_label)) "\n" \
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75 ".type " __xstring(CYG_LABEL_DEFN(_label)) ",@object\n" \
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76 ".p2align " __xstring(CYGARC_P2ALIGNMENT) "\n" \
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77 __xstring(CYG_LABEL_DEFN(_label)) ":\n" \
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78 ".previous\n" \
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79 )
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80 #endif
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81
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82 // This macro must be applied to any types whose objects are to be placed in
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83 // tables
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84 #ifndef CYG_HAL_TABLE_TYPE
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85 #define CYG_HAL_TABLE_TYPE CYGBLD_ATTRIB_ALIGN( CYGARC_ALIGNMENT )
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86 #endif
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87
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88 #ifndef CYG_HAL_TABLE_EXTRA
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89 #define CYG_HAL_TABLE_EXTRA( _name ) \
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90 CYGBLD_ATTRIB_SECTION(".ecos.table." __xstring(_name) ".extra")
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91 #endif
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92
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93 #ifndef CYG_HAL_TABLE_ENTRY
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94 #define CYG_HAL_TABLE_ENTRY( _name ) \
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95 CYGBLD_ATTRIB_SECTION(".ecos.table." __xstring(_name) ".data")
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96 #endif
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97
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98 #ifndef CYG_HAL_TABLE_QUALIFIED_ENTRY
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99 #define CYG_HAL_TABLE_QUALIFIED_ENTRY( _name, _qual ) \
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100 CYGBLD_ATTRIB_SECTION(".ecos.table." __xstring(_name) ".data." \
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101 __xstring(_qual))
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102 #endif
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103
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104 /*------------------------------------------------------------------------*/
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105 /* EOF hal_tables.h */
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106 #endif // CYGONCE_HAL_TABLES_H