Mercurial > flash_v2
annotate packages/hal/common/current/cdl/hal.cdl @ 198:ea3f0bd33a73
Merge from eCos master repository on 2001-12-07-11:40:47-GMT
| author | jlarmour |
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| date | Fri, 07 Dec 2001 14:15:03 +0000 |
| parents | feb0fcf83327 |
| children | e0c0827131d1 |
| rev | line source |
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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, 2001 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: dmoseley |
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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 drv_api.c |
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58 compile -library=libextras.a dummy.c |
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59 |
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60 requires CYGPKG_INFRA |
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61 |
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62 make -priority 250 { |
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63 <PREFIX>/lib/extras.o: <PREFIX>/lib/libextras.a |
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64 $(CC) $(CFLAGS) -nostdlib -Wl,-r -Wl,--whole-archive -o $@ $< |
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65 } |
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66 |
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67 |
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68 cdl_component CYGPKG_HAL_COMMON { |
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69 display "Platform-independent HAL options" |
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70 flavor none |
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71 description " |
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72 A number of configuration options are common to most or all |
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73 HAL packages, for example options controlling how much state |
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74 should be saved during a context switch. The implementations |
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75 of these options will vary from architecture to architecture." |
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76 |
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77 script common.cdl |
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78 } |
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79 |
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80 cdl_component CYGPKG_HAL_COMMON_INTERRUPTS { |
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81 display "HAL interrupt handling" |
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82 flavor none |
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83 description " |
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84 A number of configuration options related to interrupt |
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85 handling are common to most or all HAL packages, even though |
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86 the implementations will vary from architecture to |
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87 architecture." |
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88 |
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89 script interrupts.cdl |
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90 } |
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91 |
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92 cdl_component CYGPKG_HAL_COMMON_CONTEXT { |
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93 display "HAL context switch support" |
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94 flavor none |
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95 description " |
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96 A number of configuration options related to thread contexts |
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97 are common to most or all HAL packages, even though the |
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98 implementations will vary from architecture to architecture." |
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99 |
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100 cdl_option CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM { |
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101 display "Use minimum thread context" |
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102 parent CYGPKG_HAL_COMMON_CONTEXT |
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103 default_value 1 |
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104 description " |
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105 The thread context switch code can exploit the calling |
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106 conventions defined for a given architecture to reduce the |
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107 amount of state that has to be saved during a context |
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108 switch. Generally this improves performance and reduces |
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109 code size. However it can make source-level debugging more |
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110 difficult." |
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111 } |
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112 } |
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113 |
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114 cdl_component CYGPKG_HAL_CACHE_CONTROL { |
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115 display "Explicit control over cache behaviour" |
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116 flavor none |
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117 no_define |
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118 description " |
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119 These options let the default behaviour of the caches |
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120 be easily configurable." |
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121 |
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122 cdl_option CYGSEM_HAL_ENABLE_DCACHE_ON_STARTUP { |
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123 display "Enable DATA cache on startup" |
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124 default_value 1 |
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125 description " |
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126 Enabling this option will cause the data cache to be enabled |
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127 as soon as practicable when eCos starts up. One would choose |
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128 to disable this if the data cache cannot safely be turned on, |
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129 such as a case where the cache(s) require additional platform |
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130 specific setup." |
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131 } |
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132 |
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133 cdl_option CYGSEM_HAL_ENABLE_ICACHE_ON_STARTUP { |
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134 display "Enable INSTRUCTION cache on startup" |
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135 default_value 1 |
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136 description " |
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137 Enabling this option will cause the instruction cache to be enabled |
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138 as soon as practicable when eCos starts up. One would choose |
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139 to disable this if the instruction cache cannot safely be turned on, |
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140 such as a case where the cache(s) require additional platform |
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141 specific setup." |
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142 } |
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143 } |
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144 |
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145 cdl_component CYGPKG_HAL_DEBUG { |
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146 display "Source-level debugging support" |
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147 flavor none |
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148 description " |
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149 If the source level debugger gdb is to be used for debugging |
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150 application code then it may be necessary to configure in support |
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151 for this in the HAL." |
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152 |
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153 script debugging.cdl |
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154 } |
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155 |
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156 cdl_component CYGPKG_HAL_ROM_MONITOR { |
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157 display "ROM monitor support" |
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158 flavor none |
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159 no_define |
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160 description " |
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161 Support for ROM monitors can be built in to your application. |
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162 It may also be relevant to build your application as a ROM monitor |
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163 itself. Such options are contained here if relevant for your chosen |
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164 platform. The options and ROM monitors available to choose are |
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165 platform-dependent." |
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166 |
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167 |
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168 |
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169 cdl_interface CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT { |
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170 display "Target has virtual vector support" |
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171 no_define |
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172 } |
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173 |
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174 |
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175 cdl_interface CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT_NOT_GUARANTEED { |
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176 display "The platform port predates virtual vectors" |
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177 no_define |
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178 description " |
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179 Many platform HALs have adopted the virtual vector support |
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180 only after its introduction. On those platforms, old ROM |
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181 monitors will not provide the necessary services - and |
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182 so the use of these services should be disabled per default. |
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183 Newer ports, however, guarantee to provide the necessary |
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184 services in all ROM monitors, and so default to use the |
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185 services." |
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186 } |
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187 |
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179
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188 cdl_interface CYGINT_HAL_VIRTUAL_VECTOR_COMM_BAUD_SUPPORT { |
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189 display "Target supports baud rate control via vectors" |
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190 no_define |
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191 description " |
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192 Whether this target supports the __COMMCTL_GETBAUD |
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193 and __COMMCTL_SETBAUD virtual vector comm control operations." |
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194 } |
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195 |
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196 cdl_component CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT { |
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197 display "Enable use of virtual vector calling interface" |
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198 active_if CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT |
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199 calculated 1 |
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200 description " |
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201 Virtual vector support allows the HAL to let the ROM |
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202 monitor handle certain operations. The virtual vector table |
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203 defines a calling interface between applications running in |
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204 RAM and the ROM monitor." |
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205 compile hal_if.c hal_misc.c |
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206 |
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207 |
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208 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_INHERIT_CONSOLE { |
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209 display "Inherit console settings from ROM monitor" |
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210 active_if CYGSEM_HAL_USE_ROM_MONITOR |
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211 default_value { !CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT_NOT_GUARANTEED \ |
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212 && !CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS } |
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213 description " |
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214 When this option is set, the application will inherit |
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215 the console as set up by the ROM monitor. This means |
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216 that the application will use whatever channel and |
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217 mangling style was used by the ROM monitor when |
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218 the application was launched." |
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219 } |
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220 |
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221 cdl_option CYGPRI_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL_CONFIGURABLE { |
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222 display "Debug channel is configurable" |
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223 calculated { CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS } |
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224 description " |
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225 This option is a configuration hint - it is enabled |
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226 when the HAL initialization code will make use |
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227 of the debug channel configuration option." |
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228 } |
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229 |
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230 cdl_option CYGPRI_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_CONFIGURABLE { |
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231 display "Console channel is configurable" |
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232 calculated { !CYGSEM_HAL_VIRTUAL_VECTOR_INHERIT_CONSOLE \ |
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233 && !CYGDBG_HAL_DIAG_TO_DEBUG_CHAN } |
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234 description " |
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235 This option is a configuration hint - it is enabled |
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236 when the HAL initialization code will make use |
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237 of the console channel configuration option." |
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238 } |
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239 |
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240 |
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241 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE { |
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242 display "Initialize whole of virtual vector table" |
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156
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243 default_value { CYG_HAL_STARTUP != "RAM" || !CYGSEM_HAL_USE_ROM_MONITOR || CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT_NOT_GUARANTEED } |
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244 requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_RESET |
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245 requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DELAY_US |
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246 requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_CACHE |
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247 requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DATA |
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248 requires CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS |
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249 description " |
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250 This option will cause the whole of the virtual |
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251 vector table to be initialized with dummy values on |
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252 startup. When this option is enabled, all the |
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253 options below must also be enabled - or the |
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254 table would be empty when the application |
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255 launches. |
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256 |
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257 On targets where older ROM monitors without |
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258 virtual vector support may still be in use, it is |
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259 necessary for RAM applictions to initialize the |
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260 table (since all HAL diagnostics and debug IO |
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261 happens via the table). The default setting of |
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262 this option will see to this, but it is still |
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263 possible to override the option when a target with |
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264 a newer ROM monitor is used." |
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265 } |
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266 |
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267 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT { |
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268 display "Claim virtual vector table entries by default" |
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269 active_if !CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE |
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270 default_value 1 |
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271 description " |
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272 By default most virtual vectors will be claimed by |
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273 RAM startup configurations, meaning that the RAM |
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274 application will provide the services. The |
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275 exception is COMMS support (HAL |
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276 diagnostics/debugging IO) which is left in the |
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277 control of the ROM monitor. |
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278 |
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279 The reasoning behind this is to get as much of the |
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280 code exercised during regular development so it |
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281 is known to be working the few times a new ROM |
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282 monitor or a ROM production configuration is used |
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283 - COMMS are excluded only by necessity in order to |
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284 avoid breaking an existing debugger connections |
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285 (there may be ways around this). |
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286 |
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287 For production RAM configurations this option can |
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288 be switched off, causing the appliction to rely on |
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289 the ROM monitor for these services, thus |
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290 saving some space. |
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291 |
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292 Individual vectors may also be left unclaimed, |
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293 controlled by the below options (meaning that the |
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294 associated service provided by the ROM monitor |
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295 will be used)." |
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296 } |
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297 |
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298 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_RESET { |
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299 display "Claim reset virtual vectors" |
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300 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \ |
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301 || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT } |
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302 description " |
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303 This option will cause the reset and kill_by_reset |
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304 virtual vectors to be claimed." |
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305 } |
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306 |
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307 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DELAY_US { |
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308 display "Claim delay_us virtual vector" |
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309 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \ |
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310 || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT } |
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311 description " |
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312 This option will cause the delay_us |
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313 virtual vector to be claimed." |
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314 } |
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315 |
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316 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_CACHE { |
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317 display "Claim cache virtual vectors" |
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318 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \ |
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319 || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT } |
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320 description " |
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321 This option will cause the cache virtual vectors |
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322 to be claimed." |
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323 } |
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324 |
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325 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DATA { |
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326 display "Claim data virtual vectors" |
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327 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \ |
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328 || CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_DEFAULT } |
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329 description " |
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330 This option will cause the data virtual vectors |
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331 to be claimed. At present there is only one, used |
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332 by the RedBoot ethernet driver to share diag output." |
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333 } |
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334 |
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335 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_CLAIM_COMMS { |
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336 display "Claim comms virtual vectors" |
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337 default_value { CYGSEM_HAL_VIRTUAL_VECTOR_INIT_WHOLE_TABLE \ |
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338 || CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS } |
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339 description " |
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340 This option will cause the communication tables |
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341 that are part of the virtual vectors mechanism to |
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342 be claimed. Note that doing this may cause an |
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343 existing ROM monitor communication connection to |
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344 be closed. For this reason, the option is disabled |
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345 per default for normal application |
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346 configurations." |
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347 } |
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348 |
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349 cdl_option CYGSEM_HAL_VIRTUAL_VECTOR_DIAG { |
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350 display "Do diagnostic IO via virtual vector table" |
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351 calculated 1 |
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352 description " |
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353 All HAL IO happens via the virtual vector table / comm |
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354 tables when those tables are supported by the HAL. |
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355 |
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356 If so desired, the low-level IO functions can |
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357 still be provided by the RAM application by |
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358 enabling the CLAIM_COMMS option." |
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359 } |
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360 } |
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361 |
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362 cdl_option CYGBLD_BUILD_COMMON_GDB_STUBS { |
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363 display "Build common GDB stub ROM image" |
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364 default_value 0 |
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365 parent CYGBLD_GLOBAL_OPTIONS |
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366 requires CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS |
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367 no_define |
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368 description " |
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369 Unless a target board has specific requirements to the |
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370 stub implementation, it can use a simple common stub. |
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371 This option, which gets enabled by platform HALs as |
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372 appropriate, controls the building of the common stub." |
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373 |
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374 make -priority 315 { |
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375 <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 |
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376 @sh -c "mkdir -p src/stubrom $(dir $@)" |
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377 $(CC) -c $(INCLUDE_PATH) -Wp,-MD,deps.tmp -I$(dir $<) $(CFLAGS) -o src/stubrom/gdb_module.o $< |
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378 @echo $@ ": \\" > $(notdir $@).deps |
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379 @echo $(wildcard $(PREFIX)/lib/*) " \\" >> $(notdir $@).deps |
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380 @tail +2 deps.tmp >> $(notdir $@).deps |
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381 @echo >> $(notdir $@).deps |
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382 @rm deps.tmp |
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383 $(CC) $(LDFLAGS) -L$(PREFIX)/lib -Ttarget.ld -o $@ src/stubrom/gdb_module.o |
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384 } |
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385 } |
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386 |
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387 |
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388 } |
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389 |
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390 # Does platform need special I/O initializations? |
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391 cdl_interface CYGINT_HAL_PLF_IF_INIT { |
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392 display "Platform defined I/O channels." |
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393 description " |
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394 Platforms which provide additional I/O channels can implement |
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395 this interface, indicating that the function plf_if_init() |
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396 needs to be called." |
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397 } |
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398 |
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399 # Does platform provide IDE I/O macros? |
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400 cdl_interface CYGINT_HAL_PLF_IF_IDE { |
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401 display "Platform IDE I/O support." |
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402 description " |
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403 Platforms which provide IDE controllers can implement |
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404 this interface, indicating that IDE I/O macros are |
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405 available." |
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406 } |
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407 |
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408 define_proc { |
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409 puts $::cdl_header "/***** proc output start *****/" |
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410 puts $::cdl_header "#include <pkgconf/system.h>" |
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411 |
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412 puts $::cdl_header "#include CYGBLD_HAL_TARGET_H" |
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413 puts $::cdl_header "#ifdef CYGBLD_HAL_VARIANT_H" |
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414 puts $::cdl_header "#include CYGBLD_HAL_VARIANT_H" |
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415 puts $::cdl_header "#endif" |
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416 puts $::cdl_header "#include CYGBLD_HAL_PLATFORM_H" |
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417 |
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418 puts $::cdl_header "/****** proc output end ******/" |
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419 |
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420 } |
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421 |
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422 cdl_option CYGPKG_HAL_BUILD_COMPILER_TESTS { |
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423 display "Build Compiler sanity checking tests" |
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424 description " |
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425 Enabling this option causes compiler tests to be built." |
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426 } |
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427 |
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428 cdl_option CYGPKG_HAL_TESTS { |
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429 display "Common HAL tests" |
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430 flavor data |
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431 no_define |
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432 calculated { (!CYGPKG_HAL_BUILD_COMPILER_TESTS) ? |
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433 "tests/cache tests/context tests/intr tests/basic" : |
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434 "tests/cache tests/context tests/intr tests/basic tests/cpp1 tests/vaargs" } |
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435 description " |
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436 This option specifies the set of tests for the common HAL." |
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437 } |
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438 } |
