1 | # |
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2 | # RTEMS Classic API Support |
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3 | # Copyright 2010 Chris Johns (chrisj@rtems.org) |
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4 | # |
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5 | # $Id$ |
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6 | # |
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7 | |
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8 | import gdb |
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9 | import itertools |
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10 | import re |
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11 | #ToDo This shouldn't be here |
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12 | import helper |
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13 | |
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14 | import objects |
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15 | import threads |
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16 | import watchdog |
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17 | import heaps |
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18 | import supercore |
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19 | import sparc |
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20 | |
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21 | class attribute: |
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22 | """The Classic API attribute.""" |
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23 | |
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24 | groups = { |
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25 | 'none' : [], |
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26 | 'all' : ['scope', |
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27 | 'priority', |
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28 | 'fpu', |
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29 | 'semaphore-type', |
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30 | 'semaphore-pri', |
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31 | 'semaphore-pri-ceiling', |
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32 | 'barrier', |
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33 | 'task'], |
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34 | 'task' : ['scope', |
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35 | 'priority', |
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36 | 'fpu', |
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37 | 'task'], |
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38 | 'semaphore' : ['scope', |
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39 | 'priority', |
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40 | 'semaphore-type', |
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41 | 'semaphore-pri', |
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42 | 'semaphore-pri-ceiling'], |
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43 | 'barrier' : ['barrier'], |
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44 | 'message_queue' : ['priority', |
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45 | 'scope'], |
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46 | 'partition' : ['scope'], |
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47 | 'region' : ['priority'] |
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48 | } |
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49 | |
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50 | masks = { |
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51 | 'scope' : 0x00000002, |
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52 | 'priority' : 0x00000004, |
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53 | 'fpu' : 0x00000001, |
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54 | 'semaphore-type' : 0x00000030, |
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55 | 'semaphore-pri' : 0x00000040, |
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56 | 'semaphore-pri-ceiling' : 0x00000080, |
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57 | 'barrier' : 0x00000010, |
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58 | 'task' : 0x00008000 |
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59 | } |
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60 | |
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61 | fields = { |
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62 | 'scope' : [(0x00000000, 'local'), |
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63 | (0x00000002, 'global')], |
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64 | 'priority' : [(0x00000000, 'fifo'), |
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65 | (0x00000004, 'pri')], |
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66 | 'fpu' : [(0x00000000, 'no-fpu'), |
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67 | (0x00000001, 'fpu')], |
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68 | 'semaphore-type' : [(0x00000000, 'count-sema'), |
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69 | (0x00000010, 'bin-sema'), |
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70 | (0x00000020, 'simple-bin-sema')], |
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71 | 'semaphore-pri' : [(0x00000000, 'no-inherit-pri'), |
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72 | (0x00000040, 'inherit-pri')], |
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73 | 'semaphore-pri-ceiling' : [(0x00000000, 'no-pri-ceiling'), |
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74 | (0x00000080, 'pri-ceiling')], |
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75 | 'barrier' : [(0x00000010, 'barrier-auto-release'), |
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76 | (0x00000000, 'barrier-manual-release')], |
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77 | 'task' : [(0x00000000, 'app-task'), |
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78 | (0x00008000, 'sys-task')] |
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79 | } |
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80 | |
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81 | def __init__(self, attr, attrtype = 'none'): |
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82 | if attrtype not in self.groups: |
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83 | raise 'invalid attribute type' |
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84 | self.attrtype = attrtype |
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85 | self.attr = attr |
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86 | |
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87 | #ToDo: Move this out |
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88 | def to_string(self): |
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89 | s = '0x%08x,' % (self.attr) |
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90 | if self.attrtype != 'none': |
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91 | for m in self.groups[self.attrtype]: |
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92 | v = self.attr & self.masks[m] |
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93 | for f in self.fields[m]: |
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94 | if f[0] == v: |
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95 | s += f[1] + ',' |
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96 | break |
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97 | return s[:-1] |
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98 | |
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99 | def test(self, mask, value): |
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100 | if self.attrtype != 'none' and \ |
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101 | mask in self.groups[self.attrtype]: |
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102 | v = self.masks[mask] & self.attr |
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103 | for f in self.fields[mask]: |
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104 | if v == f[0] and value == f[1]: |
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105 | return True |
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106 | return False |
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107 | |
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108 | |
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109 | class semaphore: |
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110 | "Print a classic semaphore." |
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111 | |
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112 | def __init__(self, obj): |
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113 | self.object = obj |
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114 | self.object_control = objects.control(self.object['Object']) |
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115 | self.attr = attribute(self.object['attribute_set'], 'semaphore') |
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116 | |
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117 | def show(self, from_tty): |
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118 | print ' Name:', self.object_control.name() |
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119 | print ' Attr:', self.attr.to_string() |
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120 | if self.attr.test('semaphore-type', 'bin-sema') or \ |
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121 | self.attr.test('semaphore-type', 'simple-bin-sema'): |
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122 | core_mutex = self.object['Core_control']['mutex'] |
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123 | locked = core_mutex['lock'] == 0 |
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124 | if locked: |
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125 | s = 'locked' |
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126 | else: |
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127 | s = 'unlocked' |
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128 | print ' Lock:', s |
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129 | print ' Nesting:', core_mutex['nest_count'] |
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130 | print ' Blocked:', core_mutex['blocked_count'] |
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131 | print ' Holder:', |
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132 | holder = core_mutex['holder'] |
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133 | if holder and locked: |
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134 | holder = threads.control(holder.dereference()) |
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135 | print holder.brief() |
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136 | elif holder == 0 and locked: |
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137 | print 'locked but no holder' |
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138 | else: |
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139 | print 'unlocked' |
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140 | wait_queue = threads.queue(core_mutex['Wait_queue']) |
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141 | tasks = wait_queue.tasks() |
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142 | print ' Queue: len = %d, state = %s' % (len(tasks), |
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143 | wait_queue.state()) |
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144 | print ' Tasks:' |
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145 | print ' Name (c:current, r:real), (id)' |
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146 | for t in range(0, len(tasks)): |
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147 | print ' ', tasks[t].brief(), ' (%08x)' % (tasks[t].id()) |
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148 | else: |
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149 | print 'semaphore' |
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150 | |
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151 | class task: |
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152 | "Print a classic task" |
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153 | |
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154 | def __init__(self, obj): |
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155 | self.object = obj |
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156 | self.task = \ |
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157 | threads.control(self.object) |
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158 | self.wait_info = self.task.wait_info() |
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159 | # ToDo: Insert platform dep. code here. |
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160 | self.regs = sparc.register(self.object['Registers']) |
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161 | |
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162 | def show(self, from_tty): |
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163 | print ' Name:', self.task.name() |
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164 | print ' State:', self.task.current_state() |
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165 | print ' Current:', self.task.current_priority() |
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166 | print ' Real:', self.task.real_priority() |
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167 | print ' Preempt:', self.task.preemptible() |
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168 | print ' T Budget:', self.task.cpu_time_budget() |
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169 | print ' Regsters:' |
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170 | self.regs.show() |
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171 | |
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172 | |
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173 | class message_queue: |
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174 | "Print classic messege queue" |
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175 | |
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176 | def __init__(self,obj): |
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177 | self.object = obj |
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178 | self.object_control = objects.control(self.object['Object']) |
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179 | self.attr = attribute(self.object['attribute_set'], \ |
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180 | 'message_queue') |
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181 | self.wait_queue = threads.queue( \ |
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182 | self.object['message_queue']['Wait_queue']) |
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183 | |
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184 | self.core_control = supercore.message_queue(self.object['message_queue']) |
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185 | |
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186 | def show(self, from_tty): |
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187 | print ' Name:', self.object_control.name() |
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188 | print ' Attr:', self.attr.to_string() |
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189 | |
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190 | self.core_control.show() |
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191 | |
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192 | class timer: |
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193 | '''Print a classic timer''' |
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194 | |
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195 | def __init__(self, obj): |
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196 | self.object = obj |
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197 | self.object_control = objects.control(self.object['Object']) |
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198 | self.watchdog = watchdog.control(self.object['Ticker']) |
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199 | |
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200 | def show(self, from_tty): |
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201 | print ' Name:', self.object_control.name() |
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202 | self.watchdog.show() |
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203 | |
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204 | class partition: |
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205 | ''' Print a rtems partition ''' |
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206 | |
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207 | def __init__(self, obj): |
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208 | self.object = obj |
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209 | self.object_control = objects.control(self.object['Object']) |
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210 | self.attr = attribute(self.object['attribute_set'], 'partition') |
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211 | self.starting_addr = self.object['starting_address'] |
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212 | self.length = self.object['length'] |
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213 | self.buffer_size = self.object['buffer_size'] |
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214 | self.used_blocks = self.object['number_of_used_blocks'] |
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215 | |
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216 | def show(self, from_tty): |
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217 | # ToDo: the printing still somewhat crude. |
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218 | print ' Name:', self.object_control.name() |
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219 | print ' Attr:', self.attr.to_string() |
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220 | print ' Length:', self.length |
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221 | print ' B Size:', self.buffer_size |
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222 | print ' U Blocks:', self.used_blocks |
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223 | |
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224 | class region: |
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225 | "prints a classic region" |
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226 | |
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227 | def __init__(self,obj): |
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228 | self.object = obj |
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229 | self.object_control = objects.control(self.object['Object']) |
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230 | self.attr = attribute(self.object['attribute_set'], 'region') |
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231 | self.wait_queue = threads.queue(self.object['Wait_queue']) |
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232 | self.heap = heaps.control(self.object['Memory']) |
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233 | |
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234 | def show(self, from_tty): |
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235 | print ' Name:', self.object_control.name() |
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236 | print ' Attr:', self.attr.to_string() |
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237 | helper.tasks_printer_routine(self.wait_queue) |
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238 | print ' Memory:' |
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239 | self.heap.show() |
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240 | |
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241 | class barrier: |
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242 | '''classic barrier abstraction''' |
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243 | |
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244 | def __init__(self,obj): |
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245 | self.object = obj |
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246 | self.object_control = objects.control(self.object['Object']) |
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247 | self.attr = attribute(self.object['attribute_set'],'barrier') |
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248 | self.core_b_control = supercore.barrier_control(self.object['Barrier']) |
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249 | |
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250 | def show(self,from_tty): |
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251 | print ' Name:',self.object_control.name() |
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252 | print ' Attr:',self.attr.to_string() |
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253 | |
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254 | if self.attr.test('barrier','barrier-auto-release'): |
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255 | max_count = self.core_b_control.max_count() |
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256 | print 'Aut Count:', max_count |
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257 | |
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258 | print ' Waiting:',self.core_b_control.waiting_threads() |
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259 | helper.tasks_printer_routine(self.core_b_control.tasks()) |
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260 | |
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261 | |
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