FreeCalypso > hg > fc-magnetite
annotate src/cs/services/cst/cst_stack.c @ 519:838eeafb0051
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author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 22 Jul 2018 07:41:05 +0000 |
parents | 945cf7f506b2 |
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1 /******************************************************************************* |
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2 * |
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3 * CST_STACK.C |
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4 * |
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5 * Tasks and HISRs stacks monitoring. |
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6 * |
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7 * (C) Texas Instruments 2000 |
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8 * |
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9 ******************************************************************************/ |
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10 |
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11 #include <stdio.h> |
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12 #include <string.h> |
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13 |
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14 #include "nucleus.h" |
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15 #include "cs_defs.h" |
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16 #include "tc_defs.h" |
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17 |
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18 // The following stack sizes are defined in int.s |
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19 #define IRQ_STACK_SIZE 128 // Number of bytes in IRQ stack |
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20 #define FIQ_STACK_SIZE 512 // Number of bytes in FIQ stack. |
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21 #define SYSTEM_SIZE 1024 // Define the system stack size |
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22 |
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23 int vsi_o_trace (char * caller, unsigned long tclass, char * text); |
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24 int vsi_t_sleep (char * caller, unsigned long tvalue); |
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25 |
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26 void CST_stack_trace() |
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27 { |
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28 int jndex, count, char_count; |
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29 TC_TCB *head, *ptr; |
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30 extern CS_NODE *TCD_Created_Tasks_List; |
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31 extern CS_NODE *TCD_Created_HISRs_List; |
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32 unsigned untouched; |
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33 char *top_stack, *top, *bottom; |
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34 extern char *TCT_System_Limit; |
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35 char result[80]; |
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36 char name[9]; |
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37 |
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38 vsi_o_trace("CST", 0x08, "Stack Info ..."); |
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39 vsi_o_trace("CST", 0x08, " Name top bottom current untouched"); |
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40 vsi_o_trace("CST", 0x08, "-------------------------------------------------"); |
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41 |
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42 for (jndex=0; jndex<2; jndex++) |
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43 { |
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44 // make use of TCB and HCB having same structure from beginning to past stack info |
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45 if (jndex == 0) |
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46 ptr = head = (TC_TCB *)TCD_Created_Tasks_List; |
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47 else { |
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48 ptr = head = (TC_TCB *)TCD_Created_HISRs_List; |
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49 vsi_o_trace("CST", 0x08, "-------------------------------------------------"); |
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50 } |
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51 |
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52 count = 0; |
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53 do |
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54 { |
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55 untouched = 0; |
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56 top_stack = (char *)ptr->tc_stack_start; |
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57 while (*top_stack == 0xFE && top_stack <= (char *)ptr->tc_stack_end) |
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58 { |
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59 untouched++; |
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60 top_stack++; |
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61 } |
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62 |
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63 // Avoid to get a spurious character when tasks names are 8 characters long |
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64 memcpy (name, ptr->tc_name, 8); |
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65 name[8] = 0; |
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66 |
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67 sprintf(result, "%8s: %08x %08x %08x 0x%x", |
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68 name, |
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69 ptr->tc_stack_start, |
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70 ptr->tc_stack_end, |
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71 ptr->tc_stack_pointer, |
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72 untouched); |
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73 vsi_o_trace("CST", 0x08, result); |
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74 vsi_t_sleep("",30); |
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75 |
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76 ptr = (TC_TCB*) ptr->tc_created.cs_next; |
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77 } while (ptr != head && count++ < 50); //count is protection from infinite loops |
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78 } // end of for (jndex=0; jndex<2; jndex++) |
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79 |
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80 // stack allocation algorithm from the int.s function INT_Initialize() |
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81 // |
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82 // \ \ |
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83 // \----------\ |
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84 // \ \ |
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85 // \ \ |
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86 // \ \ |
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87 // \ SYSSTACK \ |
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88 // \ \ |
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89 // \ \ |
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90 // \ \ |
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91 // \----------\ |
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92 // \ \ |
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93 // \ IRQSTACK \ |
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94 // \ \ |
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95 // \----------\ |
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96 // \ \ |
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97 // \ \ |
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98 // \ FIQSTACK \ |
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99 // \ \ |
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100 // \ \ |
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101 // \----------\ |
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102 // \ \ |
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103 |
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104 untouched = 0; |
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105 top_stack = top = (char *)TCT_System_Limit; |
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106 bottom = (char *) ((unsigned)TCT_System_Limit + SYSTEM_SIZE); |
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107 while (*top_stack == 0xFE && top_stack <= bottom) |
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108 { |
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109 untouched++; |
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110 top_stack++; |
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111 } |
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112 |
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113 // "CST" being the current active task with its related CST_Stack, |
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114 // the System Stack is unused (current sp_svc = System Stack Bottom) |
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115 sprintf(result, "SYSSTACK: %08x %08x %08x 0x%x", |
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116 top, |
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117 bottom, |
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118 bottom, // current sp_svc = System Stack Bottom |
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119 untouched); |
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120 vsi_o_trace("CST", 0x08, "-------------------------------------------------"); |
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121 vsi_o_trace("CST", 0x08, result); |
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122 vsi_t_sleep("",30); |
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123 |
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124 untouched = 0; |
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125 top_stack = top = bottom + 4; |
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126 bottom = (char *) ((unsigned)bottom + IRQ_STACK_SIZE); |
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127 while (*top_stack == 0xFE && top_stack <= bottom) |
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128 { |
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129 untouched++; |
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130 top_stack++; |
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131 } |
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132 |
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133 // Since the processor is in supervisor mode (no IRQ & no FIQ), |
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134 // current sp_irq = IRQ Stack bottom |
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135 sprintf(result, "IRQSTACK: %08x %08x %08x 0x%x", |
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136 top, |
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137 bottom, |
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138 bottom, // current sp_irq = IRQ Stack bottom |
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139 untouched); |
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140 vsi_o_trace("CST", 0x08, result); |
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141 vsi_t_sleep("",30); |
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142 |
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143 untouched = 0; |
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144 top_stack = top = bottom + 4; |
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145 bottom = (char *) ((unsigned)bottom + FIQ_STACK_SIZE); |
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146 while (*top_stack == 0xFE && top_stack <= bottom) |
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147 { |
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148 untouched++; |
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149 top_stack++; |
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150 } |
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151 |
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152 // Since the processor is in supervisor mode (no IRQ & no FIQ), |
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153 // current sp_fiq = FIQ Stack bottom |
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154 sprintf(result, "FIQSTACK: %08x %08x %08x 0x%x", |
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155 top, |
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156 bottom, |
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157 bottom, // current sp_fiq = FIQ Stack bottom |
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158 untouched); |
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159 vsi_o_trace("CST", 0x08, result); |
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160 vsi_o_trace("CST", 0x08, "-------------------------------------------------"); |
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161 vsi_t_sleep("",30); |
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162 } |
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163 |