Mercurial > ecos
annotate packages/kernel/current/cdl/kernel.cdl @ 2348:73a01c1a35ba
* src/sched/mlqueue.cxx (add_thread, yield):
* src/sched/sched.cxx (unlock_inner, thread_entry):
* include/mlqueue.hxx (class Cyg_SchedThread_Implementation):
* include/kapidata.h (CYG_SCHEDTHREAD_TIMESLICE_MEMBER):
* include/bitmap.hxx (class Cyg_SchedThread_Implementation):
Reimplement timeslicing code. There is now a timeslice_count field
in each thread which is moved to and from the per-CPU counter
during thread dispatch. This approach has been taken to minimize
the changes needed to SMP code. Scheduler specific thread
functions handle counter save, restore and reset. These functions
are defined (as empty inlines) even when timeslicing is disabled,
or in non-timeslicing schedulers, to avoid adding ifdefs to the
code (this change actually removes some).
* tests/timeslice2.c:
* cdl/kernel.cdl: Added timeslice2 test to test behaviour of
timeslicing while being preempted.
| author | nickg |
|---|---|
| date | Mon, 08 Jan 2007 16:20:13 +0000 |
| parents | 4c13726203c5 |
| children | 74dbf4c3f2e1 |
| rev | line source |
|---|---|
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1 # ==================================================================== |
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2 # |
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3 # kernel.cdl |
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4 # |
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5 # eCos kernel configuration data |
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6 # |
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7 # ==================================================================== |
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8 #####ECOSGPLCOPYRIGHTBEGIN#### |
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9 ## ------------------------------------------- |
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10 ## This file is part of eCos, the Embedded Configurable Operating System. |
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11 ## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
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12 ## |
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13 ## eCos is free software; you can redistribute it and/or modify it under |
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14 ## the terms of the GNU General Public License as published by the Free |
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15 ## Software Foundation; either version 2 or (at your option) any later version. |
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16 ## |
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17 ## eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
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18 ## WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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19 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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20 ## for more details. |
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21 ## |
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22 ## You should have received a copy of the GNU General Public License along |
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23 ## with eCos; if not, write to the Free Software Foundation, Inc., |
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24 ## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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25 ## |
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26 ## As a special exception, if other files instantiate templates or use macros |
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27 ## or inline functions from this file, or you compile this file and link it |
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28 ## with other works to produce a work based on this file, this file does not |
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29 ## by itself cause the resulting work to be covered by the GNU General Public |
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30 ## License. However the source code for this file must still be made available |
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31 ## in accordance with section (3) of the GNU General Public License. |
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32 ## |
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33 ## This exception does not invalidate any other reasons why a work based on |
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34 ## this file might be covered by the GNU General Public License. |
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35 ## |
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36 ## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
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37 ## at http://sources.redhat.com/ecos/ecos-license/ |
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38 ## ------------------------------------------- |
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39 #####ECOSGPLCOPYRIGHTEND#### |
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40 # ==================================================================== |
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41 ######DESCRIPTIONBEGIN#### |
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42 # |
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43 # Author(s): bartv |
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44 # Original data: nickg |
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45 # Contributors: |
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46 # Date: 1999-06-13 |
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47 # |
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48 #####DESCRIPTIONEND#### |
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49 # |
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50 # ==================================================================== |
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51 |
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52 cdl_package CYGPKG_KERNEL { |
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53 display "eCos kernel" |
| 661 | 54 doc ref/kernel.html |
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55 include_dir cyg/kernel |
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56 description " |
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57 This package contains the core functionality of the eCos |
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58 kernel. It relies on functionality provided by various HAL |
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59 packages and by the eCos infrastructure. In turn the eCos |
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60 kernel provides support for other packages such as the device |
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61 drivers and the uITRON compatibility layer." |
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62 # FIXME: The compile statement should be split up and integrated as |
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63 # part of the components - so files only get comiled when they |
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64 # will actually be used. |
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65 compile common/clock.cxx common/timer.cxx common/kapi.cxx \ |
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66 common/thread.cxx common/except.cxx \ |
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67 intr/intr.cxx \ |
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68 sched/bitmap.cxx sched/lottery.cxx sched/mlqueue.cxx \ |
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69 sched/sched.cxx \ |
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70 sync/bin_sem.cxx sync/cnt_sem.cxx sync/flag.cxx \ |
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71 sync/cnt_sem2.cxx sync/mbox.cxx sync/mutex.cxx \ |
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72 debug/dbg-thread-demux.c |
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73 |
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74 # --------------------------------------------------------------------- |
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75 # The first component within the kernel is related to interrupt |
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76 # handling. |
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77 cdl_component CYGPKG_KERNEL_INTERRUPTS { |
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78 display "Kernel interrupt handling" |
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79 flavor none |
| 661 | 80 doc ref/kernel-interrupts.html |
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81 description " |
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82 The majority of configuration options related to interrupt |
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83 handling are in the HAL packages, since usually the code has |
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84 to be platform-specific. There are a number of options |
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85 provided within the kernel related to slightly higher-level |
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86 concepts, for example Delayed Service Routines." |
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87 |
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88 script interrupts.cdl |
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89 } |
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90 |
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91 # --------------------------------------------------------------------- |
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92 # Exceptions. Currently there are only two options. The first |
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93 # determines whether or not exceptions are enabled at all. The |
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94 # second controls whether they apply globally or on a per-thread |
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95 # basis. There should probably be more options, but the boundary |
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96 # between the HAL and kernel becomes blurred. |
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97 cdl_component CYGPKG_KERNEL_EXCEPTIONS { |
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98 display "Exception handling" |
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99 requires CYGPKG_HAL_EXCEPTIONS |
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100 default_value 1 |
| 661 | 101 doc ref/kernel-exceptions.html |
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102 description " |
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103 In the context of the eCos kernel exceptions are unexpected |
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104 events detected by the hardware, for example an attempt to |
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105 execute an illegal instruction. There is no relation with |
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106 other forms of exception, for example the catch and throw |
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107 facilities of languages like C++. It is possible to disable |
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108 all support for exceptions and thus save some memory." |
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109 |
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110 cdl_option CYGSEM_KERNEL_EXCEPTIONS_DECODE { |
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111 display "Decode exception types in kernel" |
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112 default_value 0 |
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113 description " |
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114 On targets where several different types of exception are |
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115 possible, for example executing an illegal instruction and |
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116 division by zero, it is possible for the kernel to do some |
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117 decoding of the exception type and deliver the different |
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118 types of exception to different handlers in the application |
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119 code. Alternatively the kernel can simply pass all |
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120 exceptions directly to application code, leaving the |
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121 decoding to be done by the application" |
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122 } |
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123 |
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124 cdl_option CYGSEM_KERNEL_EXCEPTIONS_GLOBAL { |
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125 display "Use global exception handlers" |
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126 default_value 1 |
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127 description " |
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128 In the context of the eCos kernel exceptions are |
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129 unexpected events detected by the hardware, for |
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130 example an attempt to execute an illegal |
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131 instruction. If the kernel is configured |
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132 to support exceptions then two implementations are |
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133 possible. The default implementation involves a single set |
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134 of exception handlers that are in use for the entire |
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135 system. The alternative implementation allows different |
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136 exception handlers to be specified for each thread." |
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137 } |
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138 } |
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139 |
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140 # --------------------------------------------------------------------- |
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141 cdl_component CYGPKG_KERNEL_SCHED { |
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142 display "Kernel schedulers" |
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143 flavor none |
| 661 | 144 doc ref/kernel-overview.html#KERNEL-OVERVIEW-SCHEDULERS |
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145 description " |
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146 The eCos kernel provides a choice of schedulers. In addition |
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147 there are a number of configuration options to control the |
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148 detailed behaviour of these schedulers." |
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149 |
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150 script scheduler.cdl |
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151 } |
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152 |
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153 # --------------------------------------------------------------------- |
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177
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154 # SMP support |
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155 |
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156 cdl_component CYGPKG_KERNEL_SMP_SUPPORT { |
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157 display "SMP support" |
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158 flavor bool |
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159 requires CYGPKG_HAL_SMP_SUPPORT |
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160 default_value 0 |
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161 } |
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162 |
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163 # --------------------------------------------------------------------- |
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164 cdl_component CYGPKG_KERNEL_COUNTERS { |
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165 display "Counters and clocks" |
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166 flavor none |
| 661 | 167 doc ref/kernel-counters.html |
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168 description " |
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169 The counter objects provided by the kernel provide an |
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170 abstraction of the clock facility that is generally provided. |
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171 Application code can associate alarms with counters, where an |
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172 alarm is identified by the number of ticks until it triggers, |
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173 the action to be taken on triggering, and whether or not the |
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174 alarm should be repeated." |
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175 |
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176 script counters.cdl |
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177 } |
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178 |
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179 # --------------------------------------------------------------------- |
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180 cdl_component CYGPKG_KERNEL_THREADS { |
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181 display "Thread-related options" |
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182 flavor none |
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183 description " |
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184 There are a number of configuration options related to the |
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185 implementation of threads, for example whether or not the |
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186 eCos kernel supports per-thread data." |
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187 |
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188 script thread.cdl |
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189 } |
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190 |
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191 # --------------------------------------------------------------------- |
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192 cdl_component CYGPKG_KERNEL_SYNCH { |
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193 display "Synchronization primitives" |
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194 flavor none |
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195 description " |
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196 The eCos kernel supports a number of different |
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197 synchronization primitives such as mutexes, semaphores, |
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198 condition variables, and message boxes. There are |
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199 configuration options to control the exact behaviour of some |
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200 of these synchronization primitives." |
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201 |
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202 script synch.cdl |
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203 } |
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204 |
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205 # --------------------------------------------------------------------- |
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206 cdl_component CYGPKG_KERNEL_INSTRUMENT { |
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207 display "Kernel instrumentation" |
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208 flavor bool |
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209 default_value 0 |
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210 description " |
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211 The current release of the kernel contains an initial version |
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212 of instrumentation support. The various parts of the kernel |
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213 will invoke instrumentation routines whenever appropriate |
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214 events occur, and these will be stored in a circular buffer |
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215 for later reference." |
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216 |
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182
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217 compile instrmnt/meminst.cxx |
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218 script instrument.cdl |
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219 } |
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220 |
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221 #=================================================================== |
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222 # Options related to source-level debugging and diagnostics. |
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223 cdl_component CYGPKG_KERNEL_DEBUG { |
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224 display "Source-level debugging support" |
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225 flavor none |
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226 description " |
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227 If the source level debugger gdb is to be used for debugging |
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228 application code then it may be necessary to configure in support |
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229 for this in the kernel." |
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230 |
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231 # NOTE: does this require any other support ? |
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232 cdl_option CYGDBG_KERNEL_DEBUG_GDB_THREAD_SUPPORT { |
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233 display "Include GDB multi-threading debug support" |
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234 requires CYGVAR_KERNEL_THREADS_LIST |
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235 requires CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT |
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236 default_value 1 |
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156
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237 compile debug/dbg_gdb.cxx |
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238 description " |
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239 This option enables some extra kernel code which is needed |
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240 to support multi-threaded source level debugging." |
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241 } |
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242 } |
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243 |
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244 # --------------------------------------------------------------------- |
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245 # Kernel API's. The C++ one is the default. A C API is optional. |
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246 # Support for other languages is possible. |
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247 cdl_component CYGPKG_KERNEL_API { |
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248 display "Kernel APIs" |
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249 flavor none |
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250 description " |
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251 The eCos kernel is implemented in C++, so a C++ interface |
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252 to the kernel is always available. There is also an optional |
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253 C API. Additional API's may be provided in future versions." |
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254 |
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255 cdl_option CYGFUN_KERNEL_API_C { |
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256 display "Provide C API" |
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257 default_value 1 |
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258 description " |
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259 The eCos kernel is implemented in C++, but there is an |
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260 optional C API for use by application code. This C API can be |
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261 disabled if the application code does not invoke the kernel |
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262 directly, but instead uses higher level code such as the |
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263 uITRON compatibility layer." |
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264 } |
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265 } |
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266 |
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267 define_proc { |
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268 puts $::cdl_header "/***** proc output start *****/" |
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269 |
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270 # Clients of pkgconf/kernel.h expects system.h to be included. |
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271 puts $::cdl_header "#include <pkgconf/system.h>" |
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272 # FIXME: Some clients may rely on hal.h and infra.h being included. |
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273 # This should go away when any such client has been fixed. |
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274 puts $::cdl_header "#include <pkgconf/hal.h>" |
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275 puts $::cdl_header "#include <pkgconf/infra.h>" |
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276 |
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277 # Include HAL/Platform specifics |
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278 puts $::cdl_header "#include CYGBLD_HAL_PLATFORM_H" |
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279 # Fallback defaults (in case HAL didn't define these) |
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280 puts $::cdl_header "#ifndef CYGNUM_HAL_RTC_NUMERATOR" |
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281 puts $::cdl_header "# define CYGNUM_HAL_RTC_NUMERATOR 1000000000" |
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282 puts $::cdl_header "# define CYGNUM_HAL_RTC_DENOMINATOR 100" |
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283 puts $::cdl_header "# define CYGNUM_HAL_RTC_PERIOD 9999" |
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284 puts $::cdl_header "#endif" |
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285 |
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286 puts $::cdl_header "/***** proc output end *****/" |
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287 } |
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288 |
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289 cdl_component CYGPKG_KERNEL_OPTIONS { |
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290 display "Kernel build options" |
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291 flavor none |
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292 description " |
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293 Package specific build options including control over |
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294 compiler flags used only in building this package, |
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295 and details of which tests are built." |
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296 |
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297 |
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298 cdl_option CYGPKG_KERNEL_CFLAGS_ADD { |
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299 display "Additional compiler flags" |
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300 flavor data |
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301 no_define |
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302 default_value { "" } |
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303 description " |
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304 This option modifies the set of compiler flags for |
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305 building the eCos kernel. These flags are used in addition |
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306 to the set of global flags." |
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307 } |
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308 |
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309 cdl_option CYGPKG_KERNEL_CFLAGS_REMOVE { |
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310 display "Suppressed compiler flags" |
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311 flavor data |
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312 no_define |
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313 default_value { "" } |
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314 description " |
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315 This option modifies the set of compiler flags for |
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316 building the eCos kernel. These flags are removed from |
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317 the set of global flags if present." |
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318 } |
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319 |
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320 cdl_option CYGPKG_KERNEL_TESTS { |
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321 display "Kernel tests" |
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322 flavor data |
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323 no_define |
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324 calculated { |
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325 "tests/bin_sem0 tests/bin_sem1 tests/bin_sem2 tests/bin_sem3 tests/clock0 tests/clock1 tests/clockcnv tests/clocktruth tests/cnt_sem0 tests/cnt_sem1 tests/except1 tests/flag0 tests/flag1 tests/intr0 tests/kill tests/mbox1 tests/mqueue1 tests/mutex0 tests/mutex1 tests/mutex2 tests/mutex3 tests/release tests/sched1 tests/sync2 tests/sync3 tests/thread0 tests/thread1 tests/thread2" |
| 2348 | 326 . ((CYGFUN_KERNEL_API_C) ? " tests/kclock0 tests/kclock1 tests/kexcept1 tests/kflag0 tests/kflag1 tests/kintr0 tests/klock tests/kmbox1 tests/kmutex0 tests/kmutex1 tests/kmutex3 tests/kmutex4 tests/ksched1 tests/ksem0 tests/ksem1 tests/kthread0 tests/kthread1 tests/stress_threads tests/thread_gdb tests/timeslice tests/timeslice2 tests/tm_basic tests/fptest tests/kalarm0" : "") |
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210
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327 . ((!CYGPKG_INFRA_DEBUG && !CYGPKG_KERNEL_INSTRUMENT && CYGFUN_KERNEL_API_C) ? " tests/dhrystone" : "") |
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328 . ((CYGPKG_KERNEL_SMP_SUPPORT && CYGFUN_KERNEL_API_C) ? " tests/smp" : "") |
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329 . ((!CYGINT_HAL_TESTS_NO_CACHES && CYGFUN_KERNEL_API_C) ? " tests/kcache1 tests/kcache2" : "") |
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330 } |
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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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331 description " |
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435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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changeset
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332 This option specifies the set of tests for the eCos kernel." |
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435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
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diff
changeset
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333 } |
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435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
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334 } |
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435cced73e2f
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff
changeset
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335 } |
| 661 | 336 |
| 337 # EOF kernel.cdl |
