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annotate packages/hal/common/current/cdl/hal.cdl @ 101:c37d3a9e1b28 ecos-sw-2000-06-16

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Merge from eCos master repository on 2000-06-16-07:47:03-BST
author jlarmour
date Fri, 16 Jun 2000 16:43:59 +0000
parents b15c60e34c84
children 02ea4320376c
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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 #####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): bartv
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35 # Original data: nickg,jskov,jlarmour
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36 # Contributors:
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37 # Date: 1999-06-13
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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_package CYGPKG_HAL {
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44 display "eCos HAL"
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45 include_dir cyg/hal
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46 description "
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47 The eCos HAL package provide a porting layer for
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48 higher-level parts of the system such as the kernel and the
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49 C library. Each installation should have HAL packages for
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50 one or more architectures, and for each architecture there
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51 may be one or more supported platforms. It is necessary to
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52 select one target architecture and one platform for that
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53 architecture. There are also a number of configuration
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54 options that are common to all HAL packages."
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55 doc redirect/the-ecos-hardware-abstraction-layer-hal.html
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56
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57 compile generic-stub.c thread-packets.c hal_stub.c drv_api.c
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58 compile -library=libextras.a dummy.c
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59
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60 make -priority 250 {
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61 <PREFIX>/lib/extras.o: <PREFIX>/lib/libextras.a
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62 $(CC) $(CFLAGS) -nostdlib -Wl,-r -Wl,--whole-archive -o $@ $<
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63 }
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64
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65
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66 cdl_component CYGPKG_HAL_COMMON {
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67 display "Platform-independent HAL options"
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68 flavor none
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69 description "
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70 A number of configuration options are common to most or all
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71 HAL packages, for example options controlling how much state
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72 should be saved during a context switch. The implementations
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73 of these options will vary from architecture to architecture."
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74
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75 script common.cdl
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76 }
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77
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78 cdl_component CYGPKG_HAL_COMMON_INTERRUPTS {
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79 display "HAL interrupt handling"
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80 flavor none
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81 description "
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82 A number of configuration options related to interrupt
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83 handling are common to most or all HAL packages, even though
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84 the implementations will vary from architecture to
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85 architecture."
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86
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87 script interrupts.cdl
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88 }
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89
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90 cdl_component CYGPKG_HAL_COMMON_CONTEXT {
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91 display "HAL context switch support"
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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 thread contexts
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95 are common to most or all HAL packages, even though the
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96 implementations will vary from architecture to architecture."
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97
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98 cdl_option CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM {
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99 display "Use minimum thread context"
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100 parent CYGPKG_HAL_COMMON_CONTEXT
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101 default_value 1
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102 description "
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103 The thread context switch code can exploit the calling
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104 conventions defined for a given architecture to reduce the
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105 amount of state that has to be saved during a context
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106 switch. Generally this improves performance and reduces
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107 code size. However it can make source-level debugging more
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108 difficult."
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109 }
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110 }
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111
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112 cdl_component CYGPKG_HAL_DEBUG {
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113 display "Source-level debugging support"
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114 flavor none
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115 description "
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116 If the source level debugger gdb is to be used for debugging
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117 application code then it may be necessary to configure in support
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118 for this in the HAL."
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119
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120 script debugging.cdl
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121 }
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122
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123 cdl_component CYGPKG_HAL_ROM_MONITOR {
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124 display "ROM monitor support"
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125 flavor none
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126 no_define
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127 description "
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128 Support for ROM monitors can be built in to your application.
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129 It may also be relevant to build your application as a ROM monitor
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130 itself. Such options are contained here if relevant for your chosen
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131 platform. The options and ROM monitors available to choose are
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132 platform-dependent."
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133
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134
101
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135
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136 cdl_interface CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT {
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137 display "Target has virtual vector support"
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138 no_define
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139 }
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140
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141
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142 cdl_interface CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT_GUARANTEED {
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143 display "The platform port was written with vector support"
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144 no_define
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145 description "
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146 Many platform HALs have adopted the virtual vector support
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147 after its introduction. On those platforms, old ROM
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148 monitors will not provide the necessary services - and
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149 so the use of these services should be disabled per default.
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150 Newer ports, however, guarantee to provide the necessary
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151 services in all ROM monitors, and so default to use the
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152 services."
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153 }
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154
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155 cdl_component CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT {
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156 display "Enable use of virtual vector calling interface"
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157 active_if CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT
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158 calculated 1
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159 description "
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160 Virtual vector support allows the HAL to let the ROM
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161 monitor handle certain operations. The virtual vector table
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162 defines a calling interface between applications running in
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163 RAM and the ROM monitor."
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164 compile hal_if.c hal_misc.c
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165
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166 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_DIAG {
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167 display "Do diagnostic IO via virtual vector table"
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168 default_value { CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT_GUARANTEED }
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169 description "
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170 The virtual vector table provides functions for
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171 diagnostic IO. Using these both reduce the application
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172 size a bit, and allow the ROM monitor to control which
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173 communication intererface to use. Careful when enabling
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174 this option as it may cause output to disappear (if
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175 the ROM monitor does not provide the necessary
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176 services)."
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177 }
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178 }
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179
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180 cdl_option CYGBLD_BUILD_COMMON_GDB_STUBS {
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181 display "Build common GDB stub ROM image"
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182 default_value 0
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183 parent CYGBLD_GLOBAL_OPTIONS
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184 requires CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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185 no_define
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186 description "
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187 Unless a target board has specific requirements to the
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188 stub implementation, it can use a simple common stub.
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189 This option, which gets enabled by platform HALs as
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190 appropriate, controls the building of the common stub."
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191
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192 make -priority 315 {
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193 <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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194 @sh -c "mkdir -p src/stubrom $(dir $@)"
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195 $(CC) -c $(INCLUDE_PATH) -Wp,-MD,deps.tmp -I$(dir $<) $(CFLAGS) -o src/stubrom/gdb_module.o $<
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196 @echo $@ ": \\" > $(notdir $@).deps
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197 @echo $(wildcard $(PREFIX)/lib/*) " \\" >> $(notdir $@).deps
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198 @tail +2 deps.tmp >> $(notdir $@).deps
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199 @echo >> $(notdir $@).deps
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200 @rm deps.tmp
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201 $(CC) $(LDFLAGS) -L$(PREFIX)/lib -Ttarget.ld -o $@ src/stubrom/gdb_module.o
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202 }
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203 }
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204
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205
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206 }
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207
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208 define_proc {
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209 puts $::cdl_header "/***** proc output start *****/"
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210 puts $::cdl_header "#include <pkgconf/system.h>"
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211
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212 puts $::cdl_header "#include CYGBLD_HAL_TARGET_H"
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213 puts $::cdl_header "#ifdef CYGBLD_HAL_VARIANT_H"
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214 puts $::cdl_header "#include CYGBLD_HAL_VARIANT_H"
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215 puts $::cdl_header "#endif"
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216 puts $::cdl_header "#include CYGBLD_HAL_PLATFORM_H"
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217
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218 puts $::cdl_header "/****** proc output end ******/"
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219
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220 }
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221
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222 cdl_option CYGPKG_HAL_TESTS {
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223 display "Common HAL tests"
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224 flavor data
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225 no_define
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226 calculated { "tests/cache tests/context tests/intr" }
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227 description "
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228 This option specifies the set of tests for the common HAL."
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229 }
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230 }