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annotate src/cs/services/cst/cst_stack.c @ 27:cb3f6fe694e1 default tip

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README: document SE K2x0 addition
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 21 Dec 2023 21:44:43 +0000
parents 92470e5d0b9e
children
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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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Mychaela Falconia <falcon@freecalypso.org>
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diff changeset
137 bottom,
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 bottom, // current sp_irq = IRQ Stack bottom
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 untouched);
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 vsi_o_trace("CST", 0x08, result);
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 vsi_t_sleep("",30);
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 untouched = 0;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 top_stack = top = bottom + 4;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 bottom = (char *) ((unsigned)bottom + FIQ_STACK_SIZE);
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 while (*top_stack == 0xFE && top_stack <= bottom)
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 {
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 untouched++;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 top_stack++;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 }
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 // Since the processor is in supervisor mode (no IRQ & no FIQ),
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 // current sp_fiq = FIQ Stack bottom
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 sprintf(result, "FIQSTACK: %08x %08x %08x 0x%x",
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 top,
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 bottom,
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 bottom, // current sp_fiq = FIQ Stack bottom
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 untouched);
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 vsi_o_trace("CST", 0x08, result);
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 vsi_o_trace("CST", 0x08, "-------------------------------------------------");
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 vsi_t_sleep("",30);
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 }
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163