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annotate packages/compat/uitron/current/cdl/tasks.cdl @ 76:435cced73e2f ecos-v1_3_1-release

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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
author jlarmour
date Tue, 28 Mar 2000 14:10:45 +0000
parents
children 511f4dc167f6
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76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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1 # ====================================================================
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2 #
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3 # tasks.cdl
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4 #
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5 # uITRON task related configuration data
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6 #
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7 # ====================================================================
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8 #####COPYRIGHTBEGIN####
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9 #
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10 # -------------------------------------------
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11 # The contents of this file are subject to the Red Hat eCos Public License
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12 # Version 1.1 (the "License"); you may not use this file except in
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13 # compliance with the License. You may obtain a copy of the License at
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14 # http://www.redhat.com/
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15 #
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16 # Software distributed under the License is distributed on an "AS IS"
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17 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 # License for the specific language governing rights and limitations under
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19 # the License.
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20 #
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21 # The Original Code is eCos - Embedded Configurable Operating System,
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22 # released September 30, 1998.
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23 #
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24 # The Initial Developer of the Original Code is Red Hat.
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25 # Portions created by Red Hat are
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26 # Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 # All Rights Reserved.
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28 # -------------------------------------------
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29 #
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30 #####COPYRIGHTEND####
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31 # ====================================================================
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32 ######DESCRIPTIONBEGIN####
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33 #
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34 # Author(s): jskov
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35 # Original data: hmt
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36 # Contributors:
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37 # Date: 1999-07-07
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38 #
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39 #####DESCRIPTIONEND####
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40 #
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41 # ====================================================================
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42
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43 cdl_option CYGNUM_UITRON_TASKS {
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44 display "Number of tasks"
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45 flavor data
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46 legal_values 1 to 65535
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47 default_value 4
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48 description "
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49 The number of uITRON tasks present in the system.
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50 Valid task object IDs will range from 1 to this value."
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51 }
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52 cdl_option CYGNUM_UITRON_START_TASKS {
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53 display "Start tasks"
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54 flavor data
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55 legal_values 0 to 65535
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56 default_value 1
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57 description "
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58 The number of uITRON tasks to start automatically.
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59 Tasks from 1 to this value will be started
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60 at the beginning of application execution.
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61 A value of zero here means to start them all.
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62 Tasks started in this way have a start code of
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63 zero, as if they were started by sta_tsk(i,0).
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64 If create and delete operations are supported,
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65 this number should be no greater than the number
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66 of tasks created initially."
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67 }
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68 cdl_component CYGPKG_UITRON_TASKS_CREATE_DELETE {
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69 display "Support create and delete"
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70 flavor bool
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71 default_value 1
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72 description "
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73 Support task create and delete operations (cre_tsk, del_tsk).
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74 Otherwise all tasks are created, up to the number specified above."
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75
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76 cdl_option CYGNUM_UITRON_TASKS_INITIALLY {
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77 display "Number of tasks created initially"
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78 flavor data
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79 legal_values 1 to 65535
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80 default_value 4
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81 description "
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82 The number of uITRON tasks initially created.
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83 This number should not be more than the number
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84 of tasks in the system, though setting it to a large
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85 value to mean 'all' is acceptable.
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86 Initially, only tasks numbered 1 to this number exist;
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87 higher numbered ones must be created before use."
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88 }
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89 }
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90 cdl_option CYGNUM_UITRON_STACK_SIZE {
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91 display "Default stack size"
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92 flavor data
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93 legal_values 128 to 0x7FFFFFFF
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94 default_value 2048
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95 description "
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96 Define a default stack size for uITRON tasks,
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97 for use in the initialization options below.
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98 This will be overridden where it is used if the
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99 architectural HAL requires a minimum stack size
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100 to handle interrupts correctly."
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101 }
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102 cdl_option CYGDAT_UITRON_TASK_EXTERNS {
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103 display "Externs for initialization"
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104 flavor data
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105 default_value {"extern \"C\" void task1( unsigned int ); \\\n\
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106 extern \"C\" void task2( unsigned int ); \\\n\
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107 extern \"C\" void task3( unsigned int ); \\\n\
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108 extern \"C\" void task4( unsigned int ); \\\n\
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109 static char stack1[ CYGNUM_UITRON_STACK_SIZE ], \\\n\
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110 stack2[ CYGNUM_UITRON_STACK_SIZE ], \\\n\
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111 stack3[ CYGNUM_UITRON_STACK_SIZE ], \\\n\
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112 stack4[ CYGNUM_UITRON_STACK_SIZE ];"}
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113 description "
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114 Task initializers may refer to external objects
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115 such as memory for stack or functions to call.
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116 Use this option to define or declare any external
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117 objects needed by the task static initializer below.
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118 Example: create some memory for a stack using
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119 'static char stack1\[CYGNUM_UITRON_STACK_SIZE\];'
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120 to set up a chunk of memory of the default stack size.
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121 Note: this option is invoked in the 'outermost' context
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122 of C++ source, where global/static objects are created;
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123 it should contain valid, self-contained, C++ source."
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124 }
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125 cdl_option CYGDAT_UITRON_TASK_INITIALIZERS {
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126 display "Static initializers"
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127 flavor data
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128 default_value {"CYG_UIT_TASK( \"t1\", 1, task1, &stack1, CYGNUM_UITRON_STACK_SIZE ), \\\n\
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129 CYG_UIT_TASK( \"t2\", 2, task2, &stack2, CYGNUM_UITRON_STACK_SIZE ), \\\n\
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130 CYG_UIT_TASK( \"t3\", 3, task3, &stack3, CYGNUM_UITRON_STACK_SIZE ), \\\n\
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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131 CYG_UIT_TASK( \"t4\", 4, task4, &stack4, CYGNUM_UITRON_STACK_SIZE ),"}
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132 description "
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133 Tasks must be statically
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134 initialized: enter a list of initializers
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135 separated by commas, one per line.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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136 An initializer is
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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137 'CYG_UIT_TASK(NAME,PRIO,FUNC,STACK,SIZE)'
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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138 where name is a quoted string to name the task,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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139 prio is the initial priority of the task,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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140 func is the name of the entry point,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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141 stack is the address of the task's stack,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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142 and size is the size of the task's stack.
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143 When create and delete operations are supported,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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144 'CYG_UIT_TASK_NOEXS(NAME,STACK,SIZE)' should be
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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145 used for tasks which are not initially created,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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146 in order to tell the system what memory to use
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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147 for stacks when these tasks are created later on.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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148 Using 'CYGNUM_UITRON_STACK_SIZE' for size
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149 is recommended, to use the option defined above,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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150 so long as that truly is the size of your stack(s).
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151 Note: this option is invoked in the context of a
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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152 C++ array initializer, between curly brackets.
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153 Ensure that the number of initializers here exactly
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154 matches the number of tasks specified."
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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155 }