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annotate packages/hal/common/current/cdl/hal.cdl @ 449:2f7c7863d579

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Don't claim version string for RAM applications.
author gthomas
date Wed, 04 Dec 2002 14:29:12 +0000
parents 44f818173f96
children ae67364b27ba
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 # hal.cdl
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4 #
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5 # HAL 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 ## Copyright (C) 2002 Gary Thomas
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13 ##
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14 ## eCos is free software; you can redistribute it and/or modify it under
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15 ## the terms of the GNU General Public License as published by the Free
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16 ## Software Foundation; either version 2 or (at your option) any later version.
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17 ##
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18 ## eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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19 ## WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 ## for more details.
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22 ##
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23 ## You should have received a copy of the GNU General Public License along
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24 ## with eCos; if not, write to the Free Software Foundation, Inc.,
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25 ## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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26 ##
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27 ## As a special exception, if other files instantiate templates or use macros
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28 ## or inline functions from this file, or you compile this file and link it
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29 ## with other works to produce a work based on this file, this file does not
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30 ## by itself cause the resulting work to be covered by the GNU General Public
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31 ## License. However the source code for this file must still be made available
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32 ## in accordance with section (3) of the GNU General Public License.
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33 ##
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34 ## This exception does not invalidate any other reasons why a work based on
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35 ## this file might be covered by the GNU General Public License.
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36 ##
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37 ## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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38 ## at http://sources.redhat.com/ecos/ecos-license/
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39 ## -------------------------------------------
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40 #####ECOSGPLCOPYRIGHTEND####
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41 # ====================================================================
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42 ######DESCRIPTIONBEGIN####
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43 #
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44 # Author(s): bartv
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45 # Original data: nickg,jskov,jlarmour
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46 # Contributors: dmoseley
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47 # Date: 1999-06-13
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48 #
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49 #####DESCRIPTIONEND####
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50 #
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51 # ====================================================================
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52
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53 cdl_package CYGPKG_HAL {
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54 display "eCos HAL"
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55 include_dir cyg/hal
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56 description "
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57 The eCos HAL package provide a porting layer for
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58 higher-level parts of the system such as the kernel and the
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59 C library. Each installation should have HAL packages for
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60 one or more architectures, and for each architecture there
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61 may be one or more supported platforms. It is necessary to
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62 select one target architecture and one platform for that
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63 architecture. There are also a number of configuration
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64 options that are common to all HAL packages."
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65 doc redirect/the-ecos-hardware-abstraction-layer-hal.html
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67 compile drv_api.c
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68 compile -library=libextras.a dummy.c
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70 requires CYGPKG_INFRA
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71
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72 make -priority 250 {
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73 <PREFIX>/lib/extras.o: <PREFIX>/lib/libextras.a
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74 $(CC) $(CFLAGS) -nostdlib -Wl,-r -Wl,--whole-archive -o $@ $<
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75 }
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78 cdl_component CYGPKG_HAL_COMMON {
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79 display "Platform-independent HAL options"
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80 flavor none
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81 description "
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82 A number of configuration options are common to most or all
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83 HAL packages, for example options controlling how much state
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84 should be saved during a context switch. The implementations
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85 of these options will vary from architecture to architecture."
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86
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87 script common.cdl
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88 }
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89
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90 cdl_component CYGPKG_HAL_COMMON_INTERRUPTS {
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91 display "HAL interrupt handling"
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92 flavor none
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93 description "
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94 A number of configuration options related to interrupt
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95 handling are common to most or all HAL packages, even though
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96 the implementations will vary from architecture to
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97 architecture."
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98
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99 script interrupts.cdl
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100 }
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101
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102 cdl_component CYGPKG_HAL_COMMON_CONTEXT {
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103 display "HAL context switch support"
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104 flavor none
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105 description "
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106 A number of configuration options related to thread contexts
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107 are common to most or all HAL packages, even though the
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108 implementations will vary from architecture to architecture."
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109
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110 cdl_option CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM {
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111 display "Use minimum thread context"
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112 parent CYGPKG_HAL_COMMON_CONTEXT
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113 default_value 1
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114 description "
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115 The thread context switch code can exploit the calling
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116 conventions defined for a given architecture to reduce the
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117 amount of state that has to be saved during a context
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118 switch. Generally this improves performance and reduces
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119 code size. However it can make source-level debugging more
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120 difficult."
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121 }
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122 }
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123
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124 cdl_component CYGPKG_HAL_CACHE_CONTROL {
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125 display "Explicit control over cache behaviour"
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126 flavor none
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127 no_define
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128 description "
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129 These options let the default behaviour of the caches
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130 be easily configurable."
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131
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132 cdl_component CYGSEM_HAL_ENABLE_DCACHE_ON_STARTUP {
159
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133 display "Enable DATA cache on startup"
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134 default_value 1
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135 description "
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136 Enabling this option will cause the data cache to be enabled
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137 as soon as practicable when eCos starts up. One would choose
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138 to disable this if the data cache cannot safely be turned on,
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139 such as a case where the cache(s) require additional platform
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140 specific setup."
418
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141 cdl_option CYGSEM_HAL_DCACHE_STARTUP_MODE {
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142 display "DATA cache mode on startup"
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143 flavor data
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144 legal_values { "COPYBACK" "WRITETHRU" }
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145 default_value { "COPYBACK" }
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146 description "
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147 This option controls the mode the cache will be set to
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148 when enabled on startup."
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149 }
159
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150 }
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151
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152 cdl_option CYGSEM_HAL_ENABLE_ICACHE_ON_STARTUP {
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153 display "Enable INSTRUCTION cache on startup"
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154 default_value 1
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155 description "
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156 Enabling this option will cause the instruction cache to be enabled
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157 as soon as practicable when eCos starts up. One would choose
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158 to disable this if the instruction cache cannot safely be turned on,
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159 such as a case where the cache(s) require additional platform
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160 specific setup."
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161 }
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162 }
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163
76
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164 cdl_component CYGPKG_HAL_DEBUG {
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165 display "Source-level debugging support"
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166 flavor none
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167 description "
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168 If the source level debugger gdb is to be used for debugging
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169 application code then it may be necessary to configure in support
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170 for this in the HAL."
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171
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172 script debugging.cdl
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173 }
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174
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175 cdl_component CYGPKG_HAL_ROM_MONITOR {
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176 display "ROM monitor support"
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177 flavor none
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178 no_define
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179 description "
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180 Support for ROM monitors can be built in to your application.
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181 It may also be relevant to build your application as a ROM monitor
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182 itself. Such options are contained here if relevant for your chosen
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183 platform. The options and ROM monitors available to choose are
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184 platform-dependent."
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185
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186
101
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187
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188 cdl_interface CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT {
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189 display "Target has virtual vector support"
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190 no_define
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191 }
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192
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193
179
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194 cdl_interface CYGINT_HAL_VIRTUAL_VECTOR_COMM_BAUD_SUPPORT {
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195 display "Target supports baud rate control via vectors"
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196 no_define
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197 description "
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198 Whether this target supports the __COMMCTL_GETBAUD
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199 and __COMMCTL_SETBAUD virtual vector comm control operations."
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200 }
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201
101
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202 cdl_component CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT {
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203 display "Enable use of virtual vector calling interface"
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204 active_if CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT
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205 calculated 1
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206 description "
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207 Virtual vector support allows the HAL to let the ROM
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208 monitor handle certain operations. The virtual vector table
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209 defines a calling interface between applications running in
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210 RAM and the ROM monitor."
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211 compile hal_if.c hal_misc.c
151
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212
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213
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214 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_INHERIT_CONSOLE {
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215 display "Inherit console settings from ROM monitor"
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216 active_if CYGSEM_HAL_USE_ROM_MONITOR
208
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217 default_value { !CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS }
151
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218 description "
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219 When this option is set, the application will inherit
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220 the console as set up by the ROM monitor. This means
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221 that the application will use whatever channel and
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222 mangling style was used by the ROM monitor when
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223 the application was launched."
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224 }
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225
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226 cdl_option CYGPRI_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL_CONFIGURABLE {
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227 display "Debug channel is configurable"
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228 calculated { CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS }
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229 description "
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230 This option is a configuration hint - it is enabled
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231 when the HAL initialization code will make use
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232 of the debug channel configuration option."
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233 }
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234
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235 cdl_option CYGPRI_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_CONFIGURABLE {
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236 display "Console channel is configurable"
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237 calculated { !CYGSEM_HAL_VIRTUAL_VECTOR_INHERIT_CONSOLE \
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238 && !CYGDBG_HAL_DIAG_TO_DEBUG_CHAN }
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239 description "
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240 This option is a configuration hint - it is enabled
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241 when the HAL initialization code will make use
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242 of the console channel configuration option."
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243 }
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244
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245
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246 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE {
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247 display "Initialize whole of virtual vector table"
208
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248 default_value { CYG_HAL_STARTUP != "RAM" || !CYGSEM_HAL_USE_ROM_MONITOR }
151
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249 requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_RESET
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250 requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DELAY_US
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251 requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_CACHE
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252 requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DATA
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253 requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS
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254 description "
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255 This option will cause the whole of the virtual
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256 vector table to be initialized with dummy values on
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257 startup. When this option is enabled, all the
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258 options below must also be enabled - or the
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259 table would be empty when the application
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260 launches.
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261
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262 On targets where older ROM monitors without
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263 virtual vector support may still be in use, it is
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264 necessary for RAM applictions to initialize the
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265 table (since all HAL diagnostics and debug IO
208
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266 happens via the table)."
151
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267 }
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268
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269 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT {
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270 display "Claim virtual vector table entries by default"
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271 active_if !CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE
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272 default_value 1
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273 description "
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274 By default most virtual vectors will be claimed by
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275 RAM startup configurations, meaning that the RAM
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276 application will provide the services. The
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277 exception is COMMS support (HAL
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278 diagnostics/debugging IO) which is left in the
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279 control of the ROM monitor.
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280
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281 The reasoning behind this is to get as much of the
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282 code exercised during regular development so it
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283 is known to be working the few times a new ROM
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284 monitor or a ROM production configuration is used
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285 - COMMS are excluded only by necessity in order to
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286 avoid breaking an existing debugger connections
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287 (there may be ways around this).
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288
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289 For production RAM configurations this option can
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290 be switched off, causing the appliction to rely on
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291 the ROM monitor for these services, thus
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292 saving some space.
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293
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294 Individual vectors may also be left unclaimed,
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295 controlled by the below options (meaning that the
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296 associated service provided by the ROM monitor
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297 will be used)."
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298 }
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299
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300 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_RESET {
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301 display "Claim reset virtual vectors"
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302 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \
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303 || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT }
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304 description "
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305 This option will cause the reset and kill_by_reset
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306 virtual vectors to be claimed."
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307 }
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308
447
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309 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_VERSION {
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310 display "Claim version virtual vectors"
449
2f7c7863d579 Don't claim version string for RAM applications.
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311 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE }
447
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312 description "
44f818173f96 Export RedBoot version via virtual vector table.
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313 This option will cause the version
44f818173f96 Export RedBoot version via virtual vector table.
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314 virtual vectors to be claimed."
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315 }
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316
151
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317 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DELAY_US {
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318 display "Claim delay_us virtual vector"
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319 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \
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320 || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT }
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321 description "
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322 This option will cause the delay_us
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323 virtual vector to be claimed."
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324 }
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325
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326 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_CACHE {
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327 display "Claim cache virtual vectors"
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328 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \
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329 || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT }
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330 description "
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331 This option will cause the cache virtual vectors
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332 to be claimed."
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333 }
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334
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335 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DATA {
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336 display "Claim data virtual vectors"
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337 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \
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338 || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT }
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339 description "
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340 This option will cause the data virtual vectors
179
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341 to be claimed. At present there is only one, used
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342 by the RedBoot ethernet driver to share diag output."
151
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343 }
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344
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345 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS {
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346 display "Claim comms virtual vectors"
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347 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \
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348 || CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS }
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349 description "
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350 This option will cause the communication tables
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351 that are part of the virtual vectors mechanism to
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352 be claimed. Note that doing this may cause an
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353 existing ROM monitor communication connection to
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354 be closed. For this reason, the option is disabled
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355 per default for normal application
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356 configurations."
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357 }
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358
101
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359 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_DIAG {
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360 display "Do diagnostic IO via virtual vector table"
151
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361 calculated 1
101
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362 description "
151
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363 All HAL IO happens via the virtual vector table / comm
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364 tables when those tables are supported by the HAL.
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365
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366 If so desired, the low-level IO functions can
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367 still be provided by the RAM application by
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368 enabling the CLAIM_COMMS option."
101
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369 }
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370 }
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371
76
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372 cdl_option CYGBLD_BUILD_COMMON_GDB_STUBS {
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373 display "Build common GDB stub ROM image"
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374 default_value 0
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375 parent CYGBLD_GLOBAL_OPTIONS
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376 requires CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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377 no_define
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378 description "
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379 Unless a target board has specific requirements to the
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380 stub implementation, it can use a simple common stub.
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381 This option, which gets enabled by platform HALs as
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382 appropriate, controls the building of the common stub."
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383
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384 make -priority 315 {
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385 <PREFIX>/bin/gdb_module.img : <PACKAGE>/src/stubrom/stubrom.c <PREFIX>/lib/extras.o <PREFIX>/lib/libtarget.a <PREFIX>/lib/target.ld <PREFIX>/lib/vectors.o
76
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386 @sh -c "mkdir -p src/stubrom $(dir $@)"
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387 $(CC) -c $(INCLUDE_PATH) -Wp,-MD,deps.tmp -I$(dir $<) $(CFLAGS) -o src/stubrom/gdb_module.o $<
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388 @echo $@ ": \\" > $(notdir $@).deps
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389 @echo $(wildcard $(PREFIX)/lib/*) " \\" >> $(notdir $@).deps
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390 @tail +2 deps.tmp >> $(notdir $@).deps
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391 @echo >> $(notdir $@).deps
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392 @rm deps.tmp
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393 $(CC) $(LDFLAGS) -L$(PREFIX)/lib -Ttarget.ld -o $@ src/stubrom/gdb_module.o
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394 }
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395 }
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396
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397
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398 }
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399
156
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400 # Does platform need special I/O initializations?
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401 cdl_interface CYGINT_HAL_PLF_IF_INIT {
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402 display "Platform defined I/O channels."
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403 description "
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404 Platforms which provide additional I/O channels can implement
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405 this interface, indicating that the function plf_if_init()
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406 needs to be called."
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407 }
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408
174
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409 # Does platform provide IDE I/O macros?
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410 cdl_interface CYGINT_HAL_PLF_IF_IDE {
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411 display "Platform IDE I/O support."
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412 description "
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413 Platforms which provide IDE controllers can implement
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414 this interface, indicating that IDE I/O macros are
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415 available."
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416 }
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417 cdl_option CYGPKG_HAL_GDB_FILEIO {
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418 display "File I/O operations via GDB"
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419 default_value 0
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420 active_if CYGSEM_REDBOOT_BSP_SYSCALLS
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421 requires CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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422 compile gdb-fileio.c
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423 description "This option enables support for various file I/O
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424 operations using the GDB remote protocol to communicate
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425 with GDB. The operations are then performed on the
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426 debugging host by proxy. These operations are only
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427 currently available by using a system call interface
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428 to RedBoot. This may change in the future."
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429 }
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430
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431 define_proc {
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432 puts $::cdl_header "/***** proc output start *****/"
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433 puts $::cdl_header "#include <pkgconf/system.h>"
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434
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435 puts $::cdl_header "#include CYGBLD_HAL_TARGET_H"
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436 puts $::cdl_header "#ifdef CYGBLD_HAL_VARIANT_H"
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437 puts $::cdl_header "#include CYGBLD_HAL_VARIANT_H"
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438 puts $::cdl_header "#endif"
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439 puts $::cdl_header "#include CYGBLD_HAL_PLATFORM_H"
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440
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441 puts $::cdl_header "/****** proc output end ******/"
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442
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443 }
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444
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445 cdl_option CYGPKG_HAL_BUILD_COMPILER_TESTS {
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446 display "Build Compiler sanity checking tests"
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447 description "
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448 Enabling this option causes compiler tests to be built."
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449 }
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450
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451 cdl_component CYGPKG_HAL_TESTS {
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452 display "Common HAL tests"
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453 flavor data
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454 no_define
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455 calculated { "tests/context tests/basic"
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456 . ((!CYGINT_HAL_TESTS_NO_CACHES) ? " tests/cache" : "")
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457 . ((CYGPKG_HAL_BUILD_COMPILER_TESTS) ? " tests/cpp1 tests/vaargs" : "")
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458 . ((!CYGVAR_KERNEL_COUNTERS_CLOCK) ? " tests/intr" : "") }
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459 description "
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460 This option specifies the set of tests for the common HAL."
210
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461
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462
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463 cdl_interface CYGINT_HAL_TESTS_NO_CACHES {
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464 display "Interface for cache presence"
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465 flavor booldata
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466 description "
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467 Some architectures and/or platforms do not have caches. By
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468 implementing this interface, these can disable the various
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469 cache-related tests."
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470 }
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471
76
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472 }
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473 }