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annotate packages/language/c/libc/current/cdl/time.cdl @ 76:435cced73e2f ecos-v1_3_1-release

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eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
author jlarmour
date Tue, 28 Mar 2000 14:10:45 +0000
parents
children 2085233a121a
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76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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1 # ====================================================================
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2 #
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3 # time.cdl
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4 #
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5 # C library time related configuration data
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6 #
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7 # ====================================================================
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8 #####COPYRIGHTBEGIN####
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9 #
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10 # -------------------------------------------
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11 # The contents of this file are subject to the Red Hat eCos Public License
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12 # Version 1.1 (the "License"); you may not use this file except in
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13 # compliance with the License. You may obtain a copy of the License at
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14 # http://www.redhat.com/
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15 #
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16 # Software distributed under the License is distributed on an "AS IS"
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17 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 # License for the specific language governing rights and limitations under
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19 # the License.
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20 #
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21 # The Original Code is eCos - Embedded Configurable Operating System,
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22 # released September 30, 1998.
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23 #
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24 # The Initial Developer of the Original Code is Red Hat.
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25 # Portions created by Red Hat are
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26 # Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 # All Rights Reserved.
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28 # -------------------------------------------
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29 #
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30 #####COPYRIGHTEND####
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31 # ====================================================================
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32 ######DESCRIPTIONBEGIN####
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33 #
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34 # Author(s): jskov
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35 # Original data: jlarmour
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36 # Contributors:
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37 # Date: 1999-07-06
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38 #
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39 #####DESCRIPTIONEND####
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40 #
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41 # ====================================================================
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42
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43 cdl_option CYGSEM_LIBC_TIME_CLOCK_WORKING {
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44 display "Working clock() function"
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45 requires CYGFUN_KERNEL_THREADS_TIMER
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46 requires CYGVAR_KERNEL_COUNTERS_CLOCK
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47 default_value 1
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48 description "
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49 This option controls whether clock() will
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50 actually try and determine the process time
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51 usage. With this option disabled, clock() does
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52 not disappear, but will permanently return
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53 (clock_t)-1 as mandated by the ISO C standard."
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54 }
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55
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56 cdl_option CYGSEM_LIBC_TIME_TIME_WORKING {
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57 display "Working time() function"
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58 requires CYGPKG_DEVICES_WALLCLOCK
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59 default_value 1
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60 description "
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61 This option controls whether time() will
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62 actually try and determine the current calendar
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63 time. With this option disabled, time() does
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64 not disappear, but will permanently return
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65 (time_t)-1 as mandated by the ISO C standard."
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66 }
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67
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68 cdl_option CYGSEM_LIBC_TIME_SETTIME_WORKING {
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69 display "Working cyg_libc_time_settime() function"
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70 requires CYGPKG_DEVICES_WALLCLOCK
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71 default_value 1
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72 description "
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73 This option controls whether cyg_libc_time_settime()
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74 will actually try and set the current calendar
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75 time. With this option disabled,
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76 cyg_libc_time_settime() does not disappear, but
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77 will permanently return an error."
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78 }
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79
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80 cdl_option CYGFUN_LIBC_TIME_POSIX {
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81 display "POSIX time functions"
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82 default_value 1
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83 description "
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84 Enabling this option allows the use of the
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85 following functions defined in POSIX 1003.1:
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86 asctime_r(), ctime_r(), gmtime_r(), and
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87 localtime_r()."
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88 }
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89
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90 cdl_component CYGPKG_LIBC_TIME_ZONES {
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91 display "Time zone offsets"
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92 flavor none
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93 description "
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94 These options control the default STandarD (STD)
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95 and Daylight Savings Time (DST)
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96 time offsets so that dates can be set correctly
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97 for the local environment."
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98
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99 cdl_option CYGNUM_LIBC_TIME_DST_DEFAULT_STATE {
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100 display "Default Daylight Savings Time state"
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101 flavor data
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102 legal_values -- -1 to 1
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103 default_value -- -1
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104 description "
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105 This option controls whether the initial
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106 time environment is set up as STD, DST or
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107 unknown. Use the value 1 for DST, 0 for STD,
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108 and (-1) for unknown. This can also be set at
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109 runtime using the cyg_libc_time_setdst()
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110 function."
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111 }
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112
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113 cdl_option CYGNUM_LIBC_TIME_STD_DEFAULT_OFFSET {
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114 display "Default Standard Time offset"
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115 flavor data
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116 legal_values -- -90000 to 90000
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117 default_value -- 0
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118 description "
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119 This option controls the offset from UTC in
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120 seconds when in local Standard Time. This
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121 value can be positive or negative. It
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122 can also be set at run time using the
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123 cyg_libc_time_setzoneoffsets() function."
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124 }
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125
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126 cdl_option CYGNUM_LIBC_TIME_DST_DEFAULT_OFFSET {
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127 display "Default Daylight Savings Time offset"
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128 flavor data
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129 legal_values -- -90000 to 90000
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130 default_value -- 3600
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131 description "
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132 This option controls the offset from UTC in
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133 seconds when in local Daylight Savings Time. This
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134 value can be positive or negative. It
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135 can also be set at run time using the
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136 cyg_libc_time_setzoneoffsets() function."
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137 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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138 }
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139
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140 cdl_component CYGPKG_LIBC_TIME_INLINES {
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141 display "Inline functions"
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142 flavor none
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143 description "
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144 These options control whether certain functions
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145 are available in inline form. This may lead to
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146 faster code at the expense of code space. But for
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147 some functions, or some functions with constant
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148 arguments, it may in fact lead to smaller code."
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149
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150 cdl_option CYGIMP_LIBC_TIME_ASCTIME_INLINE {
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151 display "asctime()"
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152 default_value 1
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153 description "
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154 Allow the asctime() function to be inlined"
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155 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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156
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157 cdl_option CYGIMP_LIBC_TIME_CTIME_INLINE {
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158 display "ctime()"
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159 default_value 1
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160 description "
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161 Allow the ctime() function to be inlined"
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162 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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163
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164 cdl_option CYGIMP_LIBC_TIME_DIFFTIME_INLINE {
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165 display "difftime()"
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166 default_value 1
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167 description "
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168 Allow the difftime() function to be inlined"
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169 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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170
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171 cdl_option CYGIMP_LIBC_TIME_GMTIME_INLINE {
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172 display "gmtime()"
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173 default_value 1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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174 description "
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175 Allow the gmtime() function to be inlined"
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176 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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177
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178 cdl_option CYGIMP_LIBC_TIME_LOCALTIME_INLINE {
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179 display "localtime()"
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180 default_value 1
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181 description "
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182 Allow the localtime() function to be inlined"
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183 }
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184
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185 cdl_option CYGIMP_LIBC_TIME_MKTIME_INLINE {
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186 display "mktime()"
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187 default_value 1
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188 description "
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189 Allow the mktime() function to be inlined"
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190 }
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191
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192 cdl_option CYGIMP_LIBC_TIME_ASCTIME_R_INLINE {
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193 display "asctime_r()"
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194 requires CYGFUN_LIBC_TIME_POSIX
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195 default_value 1
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196 description "
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197 Allow the asctime_r() function to be inlined"
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198 }
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199
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200 cdl_option CYGIMP_LIBC_TIME_CTIME_R_INLINE {
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201 display "ctime_r()"
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202 requires CYGFUN_LIBC_TIME_POSIX
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203 default_value 1
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204 description "
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205 Allow the ctime_r() function to be inlined"
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206 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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207
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208 cdl_option CYGIMP_LIBC_TIME_GMTIME_R_INLINE {
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209 display "gmtime_r()"
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210 requires CYGFUN_LIBC_TIME_POSIX
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211 default_value 1
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212 description "
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213 Allow the gmtime_r() function to be inlined"
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214 }
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215
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216 cdl_option CYGIMP_LIBC_TIME_LOCALTIME_R_INLINE {
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217 display "localtime_r()"
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218 requires CYGFUN_LIBC_TIME_POSIX
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219 default_value 1
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220 description "
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221 Allow the localtime_r() function to be inlined"
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222 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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223 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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224 # FIXME: Also want "inline all" and "don't inline any" options which requires
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225 # (or not) all the above, but
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226 # if we do that then we will require the ones that also depend on
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227 # CYGFUN_LIBC_TIME_POSIX :-( Wait for full CDL to fix this
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228
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229 cdl_option CYGNUM_LIBC_TIME_CLOCK_TRACE_LEVEL {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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230 display "clock() tracing level"
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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231 flavor data
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232 legal_values 0 to 1
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233 default_value 0
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234 description "
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235 Trace verbosity level for debugging the clock()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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236 function. Increase this value to get
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
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237 additional trace output when tracing is enabled."
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238 }