FreeCalypso > hg > freecalypso-sw
annotate gsm-fw/nucleus/tcf.c @ 1003:9b147d0b2cab
gsm-fw feature tch-reroute: started laying the foundation
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
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date | Fri, 18 Mar 2016 16:37:28 +0000 |
parents | afceeeb2cba1 |
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rev | line source |
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1 /*************************************************************************/ |
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2 /* */ |
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3 /* Copyright Mentor Graphics Corporation 2002 */ |
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4 /* All Rights Reserved. */ |
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5 /* */ |
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6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ |
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7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ |
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8 /* SUBJECT TO LICENSE TERMS. */ |
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9 /* */ |
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10 /*************************************************************************/ |
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11 |
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12 /*************************************************************************/ |
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13 /* */ |
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14 /* FILE NAME VERSION */ |
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15 /* */ |
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16 /* tcf.c Nucleus PLUS 1.14 */ |
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17 /* */ |
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18 /* COMPONENT */ |
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19 /* */ |
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20 /* TC - Thread Control */ |
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21 /* */ |
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22 /* DESCRIPTION */ |
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23 /* */ |
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24 /* This file contains information (fact) routines for the Thread */ |
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25 /* Control component. */ |
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26 /* */ |
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27 /* DATA STRUCTURES */ |
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28 /* */ |
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29 /* None */ |
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30 /* */ |
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31 /* FUNCTIONS */ |
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32 /* */ |
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33 /* TCF_Established_Tasks Number of created tasks */ |
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34 /* TCF_Established_HISRs Number of created HISRs */ |
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35 /* TCF_Task_Pointers Build list of task pointers */ |
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36 /* TCF_HISR_Pointers Build list of HISR pointers */ |
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37 /* TCF_Task_Information Retrieve task information */ |
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38 /* TCF_HISR_Information Retrieve HISR information */ |
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39 /* */ |
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40 /* DEPENDENCIES */ |
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41 /* */ |
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42 /* cs_extr.h Common Service functions */ |
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43 /* tc_extr.h Thread Control functions */ |
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44 /* in_extr.h Initialization/Interrupt */ |
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45 /* functions */ |
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46 /* tm_extr.h Timer Control function */ |
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47 /* er_extr.h Error handling function */ |
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48 /* hi_extr.h History functions */ |
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49 /* */ |
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50 /* HISTORY */ |
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51 /* */ |
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52 /* DATE REMARKS */ |
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53 /* */ |
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54 /* 03-01-1994 Created initial version 1.1 from */ |
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55 /* original 1.0g version of TCC.C */ |
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56 /* */ |
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57 /* 03-18-1994 Verified version 1.1 */ |
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58 /* 04-17-1996 updated to version 1.2 */ |
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59 /* 11-18-1996 Protected Informational service */ |
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60 /* from NULL Control Block pointers */ |
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61 /* creating 1.2a. (SPR220) */ |
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62 /* 03-24-1998 Released version 1.3. */ |
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63 /* 03-26-1999 Released 1.11m (new release */ |
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64 /* numbering scheme) */ |
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65 /* 04-17-2002 Released version 1.13m */ |
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66 /* 11-07-2002 Released version 1.14 */ |
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67 /*************************************************************************/ |
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68 #define NU_SOURCE_FILE |
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69 |
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70 |
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71 #include "cs_extr.h" /* Common service functions */ |
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72 #include "tc_extr.h" /* Thread control functions */ |
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73 #include "in_extr.h" /* Initialization/Interrupt */ |
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74 /* functions */ |
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75 #include "tm_extr.h" /* Timer control functions */ |
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76 #include "er_extr.h" /* Error handling function */ |
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77 #include "hi_extr.h" /* History functions */ |
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78 |
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79 |
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80 /* Define external inner-component global data references. */ |
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81 |
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82 extern CS_NODE *TCD_Created_Tasks_List; |
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83 extern UNSIGNED TCD_Total_Tasks; |
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84 extern TC_TCB *TCD_Priority_List[TC_PRIORITIES]; |
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85 extern UNSIGNED TCD_Priority_Groups; |
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86 extern DATA_ELEMENT TCD_Sub_Priority_Groups[TC_MAX_GROUPS]; |
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87 extern UNSIGNED_CHAR TCD_Lowest_Set_Bit[]; |
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88 extern INT TCD_Highest_Priority; |
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89 extern TC_TCB *TCD_Execute_Task; |
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90 extern VOID *TCD_Current_Thread; |
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91 extern UNSIGNED_CHAR TCD_Registered_LISRs[NU_MAX_VECTORS+1]; |
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92 extern VOID (*TCD_LISR_Pointers[NU_MAX_LISRS+1])(INT vector); |
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93 extern INT TCD_Interrupt_Count; |
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94 extern INT TCD_Stack_Switched; |
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95 extern TC_PROTECT TCD_List_Protect; |
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96 extern TC_PROTECT TCD_Schedule_Protect; |
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97 extern TC_PROTECT TCD_LISR_Protect; |
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98 extern CS_NODE *TCD_Created_HISRs_List; |
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99 extern UNSIGNED TCD_Total_HISRs; |
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100 extern TC_PROTECT TCD_HISR_Protect; |
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101 extern INT TCD_Unhandled_Interrupt; |
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102 |
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103 |
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104 /* Define external inner-component function calls that are not available to |
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105 other components. */ |
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106 |
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107 VOID TCT_Build_Task_Stack(TC_TCB *task_ptr); |
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108 VOID TCT_Build_HISR_Stack(TC_HCB *hisr_ptr); |
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109 VOID TCT_Build_Signal_Frame(TC_TCB *task_ptr); |
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110 VOID TCT_Protect_Switch(TC_TCB *task); |
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111 VOID TCT_Signal_Exit(VOID); |
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112 |
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113 |
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114 |
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115 /*************************************************************************/ |
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116 /* */ |
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117 /* FUNCTION */ |
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118 /* */ |
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119 /* TCF_Established_Tasks */ |
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120 /* */ |
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121 /* DESCRIPTION */ |
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122 /* */ |
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123 /* This function returns the current number of established tasks. */ |
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124 /* Tasks previously deleted are no longer considered established. */ |
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125 /* */ |
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126 /* CALLED BY */ |
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127 /* */ |
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128 /* Application */ |
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129 /* */ |
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130 /* CALLS */ |
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131 /* */ |
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132 /* [TCT_Check_Stack] Stack checking function */ |
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133 /* */ |
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134 /* INPUTS */ |
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135 /* */ |
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136 /* None */ |
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137 /* */ |
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138 /* OUTPUTS */ |
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139 /* */ |
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140 /* TCD_Total_Tasks Number of established tasks */ |
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141 /* */ |
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142 /* HISTORY */ |
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143 /* */ |
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144 /* DATE REMARKS */ |
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145 /* */ |
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146 /* 03-01-1993 Created initial version 1.0 */ |
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147 /* 04-19-1993 Verified version 1.0 */ |
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148 /* */ |
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149 /*************************************************************************/ |
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150 UNSIGNED TCF_Established_Tasks(VOID) |
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151 { |
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152 |
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153 |
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154 #ifdef NU_ENABLE_STACK_CHECK |
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155 |
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156 /* Call stack checking function to check for an overflow condition. */ |
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157 TCT_Check_Stack(); |
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158 |
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159 #endif |
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160 |
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161 /* Return the number of established tasks. */ |
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162 return(TCD_Total_Tasks); |
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163 } |
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164 |
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165 |
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166 /*************************************************************************/ |
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167 /* */ |
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168 /* FUNCTION */ |
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169 /* */ |
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170 /* TCF_Established_HISRs */ |
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171 /* */ |
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172 /* DESCRIPTION */ |
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173 /* */ |
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174 /* This function returns the current number of established HISRs. */ |
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175 /* HISRs previously deleted are no longer considered established. */ |
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176 /* */ |
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177 /* CALLED BY */ |
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178 /* */ |
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179 /* Application */ |
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180 /* */ |
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181 /* CALLS */ |
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182 /* */ |
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183 /* [TCT_Check_Stack] Stack checking function */ |
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184 /* */ |
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185 /* INPUTS */ |
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186 /* */ |
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187 /* None */ |
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188 /* */ |
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189 /* OUTPUTS */ |
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190 /* */ |
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191 /* TCD_Total_HISRs Number of established HISRs */ |
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192 /* */ |
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193 /* HISTORY */ |
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194 /* */ |
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195 /* DATE REMARKS */ |
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196 /* */ |
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197 /* 03-01-1993 Created initial version 1.0 */ |
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198 /* 04-19-1993 Verified version 1.0 */ |
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199 /* */ |
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200 /*************************************************************************/ |
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201 UNSIGNED TCF_Established_HISRs(VOID) |
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202 { |
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203 |
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204 |
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205 #ifdef NU_ENABLE_STACK_CHECK |
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206 |
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207 /* Call stack checking function to check for an overflow condition. */ |
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208 TCT_Check_Stack(); |
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209 |
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210 #endif |
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211 |
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212 /* Return the number of established HISRs. */ |
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213 return(TCD_Total_HISRs); |
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214 } |
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215 |
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216 |
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217 /*************************************************************************/ |
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218 /* */ |
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219 /* FUNCTION */ |
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220 /* */ |
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221 /* TCF_Task_Pointers */ |
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222 /* */ |
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223 /* DESCRIPTION */ |
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224 /* */ |
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225 /* This function builds a list of task pointers, starting at the */ |
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226 /* specified location. The number of task pointers placed in the */ |
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227 /* list is equivalent to the total number of tasks or the maximum */ |
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228 /* number of pointers specified in the call. */ |
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229 /* */ |
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230 /* CALLED BY */ |
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231 /* */ |
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232 /* Application */ |
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233 /* */ |
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234 /* CALLS */ |
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235 /* */ |
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236 /* [TCT_Check_Stack] Stack checking function */ |
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237 /* TCT_System_Protect Protect task created list */ |
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238 /* TCT_Unprotect Release protection of list */ |
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239 /* */ |
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240 /* INPUTS */ |
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241 /* */ |
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242 /* pointer_list Pointer to the list area */ |
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243 /* maximum_pointers Maximum number of pointers */ |
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244 /* */ |
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245 /* OUTPUTS */ |
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246 /* */ |
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247 /* pointers Number of tasks placed in */ |
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248 /* list */ |
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249 /* HISTORY */ |
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250 /* */ |
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251 /* DATE REMARKS */ |
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252 /* */ |
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253 /* 03-01-1993 Created initial version 1.0 */ |
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254 /* 04-19-1993 Verified version 1.0 */ |
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255 /* 08-09-1993 Corrected pointer retrieval */ |
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256 /* loop, resulting in version 1.0c */ |
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257 /* 08-09-1993 Verified version 1.0c */ |
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258 /* 03-01-1994 Modified function interface, */ |
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259 /* resulting in version 1.1 */ |
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260 /* */ |
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261 /* 03-18-1994 Verified version 1.1 */ |
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262 /* */ |
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263 /*************************************************************************/ |
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264 UNSIGNED TCF_Task_Pointers(NU_TASK **pointer_list, UNSIGNED maximum_pointers) |
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265 { |
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266 |
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267 CS_NODE *node_ptr; /* Pointer to each TCB */ |
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268 UNSIGNED pointers; /* Number of pointers in list*/ |
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269 NU_SUPERV_USER_VARIABLES |
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270 |
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271 /* Switch to supervisor mode */ |
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272 NU_SUPERVISOR_MODE(); |
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273 |
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274 #ifdef NU_ENABLE_STACK_CHECK |
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275 |
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276 /* Call stack checking function to check for an overflow condition. */ |
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277 TCT_Check_Stack(); |
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278 |
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279 #endif |
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280 |
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281 /* Initialize the number of pointers returned. */ |
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282 pointers = 0; |
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283 |
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284 /* Protect the task created list. */ |
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285 TCT_Protect(&TCD_List_Protect); |
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286 |
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287 /* Loop until all task pointers are in the list or until the maximum |
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288 list size is reached. */ |
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289 node_ptr = TCD_Created_Tasks_List; |
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290 while ((node_ptr) && (pointers < maximum_pointers)) |
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291 { |
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292 |
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293 /* Place the node into the destination list. */ |
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294 *pointer_list++ = (NU_TASK *) node_ptr; |
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295 |
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296 /* Increment the pointers variable. */ |
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297 pointers++; |
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298 |
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299 /* Position the node pointer to the next node. */ |
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300 node_ptr = node_ptr -> cs_next; |
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301 |
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302 /* Determine if the pointer is at the head of the list. */ |
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303 if (node_ptr == TCD_Created_Tasks_List) |
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304 |
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305 /* The list search is complete. */ |
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306 node_ptr = NU_NULL; |
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307 } |
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308 |
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309 /* Release protection. */ |
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310 TCT_Unprotect(); |
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311 |
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312 /* Return to user mode */ |
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313 NU_USER_MODE(); |
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314 |
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315 /* Return the number of pointers in the list. */ |
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316 return(pointers); |
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317 } |
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318 |
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319 |
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320 /*************************************************************************/ |
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321 /* */ |
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322 /* FUNCTION */ |
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323 /* */ |
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324 /* TCF_HISR_Pointers */ |
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325 /* */ |
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326 /* DESCRIPTION */ |
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327 /* */ |
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328 /* This function builds a list of HISR pointers, starting at the */ |
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329 /* specified location. The number of HISR pointers placed in the */ |
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330 /* list is equivalent to the total number of HISRs or the maximum */ |
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331 /* number of pointers specified in the call. */ |
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332 /* */ |
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333 /* CALLED BY */ |
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334 /* */ |
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335 /* Application */ |
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336 /* */ |
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337 /* CALLS */ |
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338 /* */ |
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339 /* [TCT_Check_Stack] Stack checking function */ |
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340 /* TCT_Protect Protect HISR created list */ |
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341 /* TCT_Unprotect Release protection of list */ |
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342 /* */ |
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343 /* INPUTS */ |
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344 /* */ |
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345 /* pointer_list Pointer to the list area */ |
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346 /* maximum_pointers Maximum number of pointers */ |
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347 /* */ |
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348 /* OUTPUTS */ |
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349 /* */ |
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350 /* Number of HISRs placed in */ |
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351 /* list */ |
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352 /* HISTORY */ |
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353 /* */ |
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354 /* DATE REMARKS */ |
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355 /* */ |
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356 /* 03-01-1993 Created initial version 1.0 */ |
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357 /* 04-19-1993 Verified version 1.0 */ |
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358 /* 08-09-1993 Corrected pointer retrieval */ |
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359 /* loop, resulting in version 1.0c */ |
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360 /* 08-09-1993 Verified version 1.0c */ |
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361 /* 03-01-1994 Modified function interface, */ |
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362 /* resulting in version 1.1 */ |
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363 /* */ |
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364 /* 03-18-1994 Verified version 1.1 */ |
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365 /* */ |
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366 /*************************************************************************/ |
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367 UNSIGNED TCF_HISR_Pointers(NU_HISR **pointer_list, UNSIGNED maximum_pointers) |
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368 { |
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369 |
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370 CS_NODE *node_ptr; /* Pointer to each TCB */ |
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371 UNSIGNED pointers; /* Number of pointers in list*/ |
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372 NU_SUPERV_USER_VARIABLES |
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373 |
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374 /* Switch to supervisor mode */ |
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375 NU_SUPERVISOR_MODE(); |
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376 |
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377 #ifdef NU_ENABLE_STACK_CHECK |
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378 |
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379 /* Call stack checking function to check for an overflow condition. */ |
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380 TCT_Check_Stack(); |
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381 |
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382 #endif |
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383 |
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384 /* Initialize the number of pointers returned. */ |
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385 pointers = 0; |
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386 |
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387 /* Protect the HISR created list. */ |
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388 TCT_Protect(&TCD_HISR_Protect); |
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389 |
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390 /* Loop until all HISR pointers are in the list or until the maximum |
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391 list size is reached. */ |
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392 node_ptr = TCD_Created_HISRs_List; |
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393 while ((node_ptr) && (pointers < maximum_pointers)) |
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394 { |
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395 |
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396 /* Place the node into the destination list. */ |
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397 *pointer_list++ = (NU_HISR *) node_ptr; |
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398 |
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399 /* Increment the pointers variable. */ |
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400 pointers++; |
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401 |
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402 /* Position the node pointer to the next node. */ |
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403 node_ptr = node_ptr -> cs_next; |
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404 |
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405 /* Determine if the pointer is at the head of the list. */ |
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406 if (node_ptr == TCD_Created_HISRs_List) |
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407 |
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408 /* The list search is complete. */ |
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409 node_ptr = NU_NULL; |
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410 } |
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411 |
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412 /* Release protection. */ |
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413 TCT_Unprotect(); |
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414 |
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415 /* Return to user mode */ |
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416 NU_USER_MODE(); |
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417 |
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418 /* Return the number of pointers in the list. */ |
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419 return(pointers); |
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420 } |
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421 |
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422 |
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423 /*************************************************************************/ |
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424 /* */ |
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425 /* FUNCTION */ |
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426 /* */ |
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427 /* TCF_Task_Information */ |
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428 /* */ |
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429 /* DESCRIPTION */ |
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430 /* */ |
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431 /* This function returns information about the specified task. */ |
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432 /* However, if the supplied task pointer is invalid, the function */ |
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433 /* simply returns an error status. */ |
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434 /* */ |
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435 /* CALLED BY */ |
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436 /* */ |
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|
437 /* Application */ |
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|
438 /* */ |
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|
439 /* CALLS */ |
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440 /* */ |
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441 /* [TCT_Check_Stack] Stack checking function */ |
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442 /* TCT_System_Protect Protect scheduling info */ |
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443 /* TCT_Unprotect Release protection */ |
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|
444 /* */ |
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445 /* INPUTS */ |
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|
446 /* */ |
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447 /* task_ptr Pointer to the task */ |
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448 /* name Destination for the name */ |
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449 /* status Destination for task status */ |
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450 /* scheduled_count Destination for scheduled */ |
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|
451 /* count of the task */ |
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|
452 /* priority Destination for task priority*/ |
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453 /* preempt Destination for preempt flag */ |
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|
454 /* time_slice Destination for time slice */ |
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|
455 /* stack_base Destination for pointer to */ |
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|
456 /* base of task's stack */ |
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|
457 /* stack_size Destination for stack size */ |
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|
458 /* minimum_stack Destination for the minimum */ |
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|
459 /* running size of the stack */ |
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|
460 /* */ |
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|
461 /* OUTPUTS */ |
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|
462 /* */ |
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|
463 /* NU_SUCCESS If a valid task pointer is */ |
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|
464 /* supplied */ |
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|
465 /* NU_INVALID_TASK If task pointer is invalid */ |
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|
466 /* */ |
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|
467 /* HISTORY */ |
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|
468 /* */ |
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|
469 /* DATE REMARKS */ |
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parents:
diff
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|
470 /* */ |
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|
471 /* 03-01-1993 Created initial version 1.0 */ |
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|
472 /* 04-19-1993 Verified version 1.0 */ |
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|
473 /* 03-01-1994 Modified function interface, */ |
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|
474 /* added register optimizations, */ |
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parents:
diff
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|
475 /* changed protection logic, */ |
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|
476 /* resulting in version 1.1 */ |
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parents:
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|
477 /* */ |
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|
478 /* 03-18-1994 Verified version 1.1 */ |
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|
479 /* 11-18-1996 Corrected SPR220. */ |
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|
480 /* */ |
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|
481 /*************************************************************************/ |
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|
482 STATUS TCF_Task_Information(NU_TASK *task_ptr, CHAR *name, |
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|
483 DATA_ELEMENT *status, UNSIGNED *scheduled_count, |
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|
484 DATA_ELEMENT *priority, OPTION *preempt, UNSIGNED *time_slice, |
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|
485 VOID **stack_base, UNSIGNED *stack_size, UNSIGNED *minimum_stack) |
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|
486 { |
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|
487 |
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|
488 R1 TC_TCB *task; /* Task control block ptr */ |
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|
489 INT i; /* Working index */ |
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|
490 STATUS completion; /* Completion status */ |
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|
491 NU_SUPERV_USER_VARIABLES |
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|
492 |
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|
493 /* Switch to supervisor mode */ |
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|
494 NU_SUPERVISOR_MODE(); |
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|
495 |
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|
496 /* Move task control block pointer into internal pointer. */ |
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|
497 task = (TC_TCB *) task_ptr; |
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|
498 |
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|
499 |
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|
500 #ifdef NU_ENABLE_STACK_CHECK |
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|
501 |
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|
502 /* Call stack checking function to check for an overflow condition. */ |
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|
503 TCT_Check_Stack(); |
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|
504 |
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|
505 #endif |
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|
506 |
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|
507 /* Determine if this task is valid. */ |
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508 if ((task != NU_NULL) && (task -> tc_id == TC_TASK_ID)) |
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|
509 { |
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|
510 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
511 /* Protect against scheduling changes. */ |
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|
512 TCT_System_Protect(); |
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|
513 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
514 /* The task pointer is successful. Reflect this in the completion |
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parents:
diff
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|
515 status and fill in the actual information. */ |
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|
516 completion = NU_SUCCESS; |
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diff
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|
517 |
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|
518 /* Copy the task's name. */ |
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diff
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|
519 for (i = 0; i < NU_MAX_NAME; i++) |
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diff
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|
520 *name++ = task -> tc_name[i]; |
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diff
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|
521 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
522 /* Determine the preemption posture. */ |
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diff
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|
523 if (task -> tc_preemption) |
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|
524 *preempt = NU_PREEMPT; |
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|
525 else |
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|
526 *preempt = NU_NO_PREEMPT; |
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parents:
diff
changeset
|
527 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
528 /* Setup the remaining fields. */ |
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|
529 *status = task -> tc_status; |
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diff
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|
530 *scheduled_count = task -> tc_scheduled; |
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|
531 *priority = task -> tc_priority; |
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parents:
diff
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|
532 *time_slice = task -> tc_time_slice; |
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|
533 *stack_base = task -> tc_stack_start; |
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|
534 *stack_size = task -> tc_stack_size; |
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|
535 *minimum_stack = task -> tc_stack_minimum; |
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diff
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|
536 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
537 /* Release protection. */ |
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parents:
diff
changeset
|
538 TCT_Unprotect(); |
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parents:
diff
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|
539 } |
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parents:
diff
changeset
|
540 else |
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parents:
diff
changeset
|
541 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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diff
changeset
|
542 /* Indicate that the task pointer is invalid. */ |
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|
543 completion = NU_INVALID_TASK; |
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diff
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|
544 |
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parents:
diff
changeset
|
545 /* Return to user mode */ |
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parents:
diff
changeset
|
546 NU_USER_MODE(); |
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parents:
diff
changeset
|
547 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
548 /* Return the appropriate completion status. */ |
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parents:
diff
changeset
|
549 return(completion); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
550 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
551 |
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beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
552 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
553 /*************************************************************************/ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
554 /* */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
555 /* FUNCTION */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
556 /* */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
557 /* TCF_HISR_Information */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
558 /* */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
559 /* DESCRIPTION */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
560 /* */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
561 /* This function returns information about the specified HISR. */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
562 /* However, if the supplied HISR pointer is invalid, the function */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
563 /* simply returns an error status. */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
564 /* */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
565 /* CALLED BY */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
566 /* */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
567 /* Application */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
568 /* */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
569 /* CALLS */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
570 /* */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
571 /* [TCT_Check_Stack] Stack checking function */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
572 /* TCT_System_Protect Protect scheduling info */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
573 /* TCT_Unprotect Release protection */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
574 /* */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
575 /* INPUTS */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
576 /* */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
577 /* hisr_ptr Pointer to the hisr */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
578 /* name Destination for the name */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
579 /* scheduled_count Destination for scheduled */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
580 /* count of the HISR */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
581 /* priority Destination for HISR priority*/ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
582 /* stack_base Destination for pointer to */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
583 /* base of HISR's stack */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
584 /* stack_size Destination for stack size */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
585 /* minimum_stack Destination for the minimum */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
586 /* running size of the stack */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
587 /* */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
588 /* OUTPUTS */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
589 /* */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
590 /* NU_SUCCESS If a valid HISR pointer is */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
591 /* supplied */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
592 /* NU_INVALID_HISR If HISR pointer is invalid */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
593 /* */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
594 /* HISTORY */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
595 /* */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
596 /* DATE REMARKS */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
597 /* */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
598 /* 03-01-1993 Created initial version 1.0 */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
599 /* 04-19-1993 Verified version 1.0 */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
600 /* 03-01-1994 Modified function interface, */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
601 /* added register optimizations, */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
602 /* changed protection logic, */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
603 /* resulting in version 1.1 */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
604 /* */ |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
605 /* 03-18-1994 Verified version 1.1 */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
606 /* 11-18-1996 Corrected SPR220. */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
607 /* */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
608 /*************************************************************************/ |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
609 STATUS TCF_HISR_Information(NU_HISR *hisr_ptr, CHAR *name, |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
610 UNSIGNED *scheduled_count, DATA_ELEMENT *priority, |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
611 VOID **stack_base, UNSIGNED *stack_size, UNSIGNED *minimum_stack) |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
612 { |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
613 |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
614 R1 TC_HCB *hisr; /* HISR control block ptr */ |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
615 INT i; /* Working index */ |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
616 STATUS completion; /* Completion status */ |
947b1f473960
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parents:
diff
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|
617 NU_SUPERV_USER_VARIABLES |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
618 |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
619 /* Switch to supervisor mode */ |
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parents:
diff
changeset
|
620 NU_SUPERVISOR_MODE(); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
621 |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
622 /* Move input HISR control block pointer into internal pointer. */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
623 hisr = (TC_HCB *) hisr_ptr; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
624 |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
625 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
626 #ifdef NU_ENABLE_STACK_CHECK |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
627 |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
628 /* Call stack checking function to check for an overflow condition. */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
629 TCT_Check_Stack(); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
630 |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
631 #endif |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
632 |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
633 /* Determine if this HISR is valid. */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
634 if ((hisr != NU_NULL) && (hisr -> tc_id == TC_HISR_ID)) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
635 { |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
636 |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
637 /* Protect against scheduling changes. */ |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
638 TCT_System_Protect(); |
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639 |
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640 /* The HISR pointer is successful. Reflect this in the completion |
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641 status and fill in the actual information. */ |
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642 completion = NU_SUCCESS; |
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643 |
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644 /* Copy the hisr's name. */ |
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645 for (i = 0; i < NU_MAX_NAME; i++) |
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646 *name++ = hisr -> tc_name[i]; |
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647 |
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648 /* Setup the remaining fields. */ |
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649 *scheduled_count = hisr -> tc_scheduled; |
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650 *priority = hisr -> tc_priority; |
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651 *stack_base = hisr -> tc_stack_start; |
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652 *stack_size = hisr -> tc_stack_size; |
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653 *minimum_stack = hisr -> tc_stack_minimum; |
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654 |
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655 /* Release protection. */ |
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656 TCT_Unprotect(); |
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657 } |
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658 else |
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659 |
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660 /* Indicate that the HISR pointer is invalid. */ |
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661 completion = NU_INVALID_HISR; |
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662 |
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663 /* Return to user mode */ |
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664 NU_USER_MODE(); |
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665 |
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666 /* Return the appropriate completion status. */ |
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667 return(completion); |
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668 } |
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669 |
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670 |
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671 |
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672 |