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45
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1 #!/usr/bin/perl
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2
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3 use Getopt::Std;
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4 use strict;
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5
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6 #
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7 # generrate Gears OS context heaader and initializer from CbC sources
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8 #
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9 # CodeGear
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10 #
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11 # get stub information from # *.c
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12 # __code taskManager_stub(struct Context* context) {
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13 #
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14 # generate CodeGear indexn in context.h
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15 # C_taskManager,
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16 #
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17 # generate CodeGear stub reference in context.h
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18 # extern __code taskManager_stub(struct Context*);
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19 #
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20 # generate CodeGear stub reference in $name-context.h for each module
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21 # context->code[C_taskManager] = taskManager_stub;
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22 #
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23 # DataGear
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24 #
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25 # get DataGear information from context.h
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26 # struct Worker {
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27 # int id;
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28 # struct Context* contexts;
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29 # enum Code execute;
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30 # enum Code taskSend;
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31 # enum Code taskRecive;
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32 # enum Code shutdown;
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33 # struct Queue* tasks;
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34 # } Worker;
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35 #
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36 # generate typedefs and DataGear index in context.h
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37 # typedef struct Worker Worker;
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38 # D_Worker,
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39 #
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40 # generate DataGear allocator in context.h
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41 # ALLOC_DATA(context, Worker);
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42 #
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43
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44 my $ddir = "c";
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45
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46 our($opt_o,$opt_d,$opt_h);
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47 getopts('o:d:h');
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48
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49 my $name = $opt_o?$opt_o:"gears";
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50
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51 if ($opt_d) {
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52 $ddir = $opt_d;
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53 }
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54
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55 if ( ! -d $ddir) {
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56 mkdir $ddir;
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57 }
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58
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59 if ($opt_h) {
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60 print "$0 [-d distdir] [-h]\n";
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61 exit;
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62 }
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63
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64 my %codeGear;
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65 my %dataGear;
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66 my %constructor;
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67
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68 # gather module Information for code table initialization
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69 for (@ARGV) {
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70 next if (/context.c/);
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71 &getStubInfo($_);
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72 }
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73
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74 my (%mCodeGear) = (%codeGear);
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75
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76 # anyway we gather all Gears Information
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77 while (<*.c test/*.c>) {
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78 next if (/context.c/);
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79 &getStubInfo($_);
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80 }
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81
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82 &generateContext();
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83
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84 sub getStubInfo {
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85 my ($filename) = @_;
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86 open my $fd,"<",$filename or die("can't open $filename $!");
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87 while (<$fd>) {
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88 if (/^__code (\w+)_stub\(struct *Context *\* *context\)/) {
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89 $codeGear{$1} = $filename;
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90 } elsif (/^(\w+)(\*)+ *create(\w+)\(([^]]*)\)/) {
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91 my $interface = $1;
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92 my $implementation = $3;
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93 my $constructorArgs = $4;
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94 $constructor{$implementation} = [$interface, $constructorArgs];
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95 }
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96 }
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97
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98 open my $cx,"<","context.h" or die("can't open context.h $!");
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99 my $inUnionData = 0;
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100 while (<$cx>) {
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101 if (! $inUnionData) {
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102 if ( /^union Data/) {
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103 $inUnionData = 1;
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104 }
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105 next;
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106 }
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107 last if (/union Data end/);
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108 if (/struct (\w+) \{/) {
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109 $dataGear{$1} = 'struct';
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110 } elsif (/^\s{4}(\w+) (\w+);/) { # primitive type
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111 $dataGear{$1} = 'primitive';
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112 }
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113 $dataGear{"Context"} = "struct";
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114 }
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115 }
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116
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117 sub generateContext {
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118 $codeGear{"start_code"} = "$ddir/$name-context.c";
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119 $codeGear{"exit_code"} = "$ddir/$name-context.c";
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120 $mCodeGear{"start_code"} = "$ddir/$name-context.c";
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121 $mCodeGear{"exit_code"} = "$ddir/$name-context.c";
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122 open my $fd,">","$ddir/extern.h" or die("can't open $ddir/extern.h $!");
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123 for my $code ( sort keys %codeGear ) {
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124 print $fd "extern __code ${code}_stub(struct Context*);\n";
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125 }
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126 for my $impl ( sort keys %constructor ) {
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127 my ($interface, $constructorArgs) = @{$constructor{$impl}};
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128 print $fd "extern ${interface}* create${impl}($constructorArgs);\n";
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129 }
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130 print $fd "\n";
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131
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132 open my $fd,">","$ddir/enumCode.h" or die("can't open $ddir/enumCode.h $!");
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133 print $fd "enum Code {\n";
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134 for my $code ( sort keys %codeGear ) {
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135 print $fd " C_${code},\n";
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136 }
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137 print $fd "};\n";
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138
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139 my $code_init = '';
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140 for my $code ( sort keys %mCodeGear ) {
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141 $code_init .= " context->code[C_${code}] = ${code}_stub;\n";
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142 }
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143
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144 my $data_num = keys(%dataGear);
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145 $data_num++;
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146 my $context_c = << "EOFEOF";
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147 #include <stdlib.h>
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148
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149 #include "../context.h"
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150
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151 void initContext(struct Context* context) {
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152 context->heapLimit = sizeof(union Data)*ALLOCATE_SIZE;
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153 context->code = (__code(**) (struct Context*)) NEWN(ALLOCATE_SIZE, void*);
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154 context->data = NEWN(ALLOCATE_SIZE, union Data*);
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155 context->heapStart = NEWN(context->heapLimit, char);
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156 context->heap = context->heapStart;
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157 // context->codeNum = Exit;
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158
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159 $code_init
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160
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161 #include "dataGearInit.c"
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162 context->dataNum = $data_num;
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163 }
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164 EOFEOF
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165
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166 open my $fd,">","$ddir/$name-context.c" or die("can't open $ddir/$name-context.c $!");
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167 print $fd $context_c;
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168
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169 my $meta_call = <<"EOFEOF";
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170 __code meta(struct Context* context, enum Code next) {
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171 // printf("meta %d\\n",next);
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172 goto (context->code[next])(context);
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173 }
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174
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175 __code parGotoMeta(struct Context* context, enum Code next) {
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176 context->task = NULL;
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177 context->taskList = NULL;
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178 goto (context->code[Gearef(context, TaskManager)->taskManager->TaskManager.spawnTasks])(context);
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179 }
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180
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181 __code start_code(struct Context* context) {
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182 goto meta(context, context->next);
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183 }
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184
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185 __code start_code_stub(struct Context* context) {
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186 goto start_code(context);
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187 }
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188
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189 __code exit_code(struct Context* context) {
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190 free(context->code);
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191 free(context->data);
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192 free(context->heapStart);
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193 goto exit(0);
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194 }
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195
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196 __code exit_code_stub(struct Context* context) {
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197 goto exit_code(context);
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198 }
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199
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200 // end context_c
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201 EOFEOF
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202
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203 print $fd $meta_call;
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204
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205 open my $fd,">","$ddir/enumData.h" or die("can't open $ddir/enumData.h $!");
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206 print $fd "enum DataType {\n";
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207 print $fd " D_Code,\n";
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208 for my $data ( sort keys %dataGear ) {
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209 print $fd " D_${data},\n";
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210 }
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211 print $fd "};\n\n";
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212
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213 open my $fd,">","$ddir/typedefData.h" or die("can't open $ddir/typedefData.h $!");
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214 for my $data ( sort keys %dataGear ) {
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215 if ($dataGear{$data} eq 'struct') {
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216 print $fd "typedef struct ${data} ${data};\n";
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217 }
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218 }
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219
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220 open my $fd,">","$ddir/dataGearInit.c" or die("can't open $ddir/dataGearInit.c $!");
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221 for my $data ( sort keys %dataGear ) {
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222 print $fd " ALLOC_DATA(context, ${data});\n";
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223 }
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224 }
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225
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226 # end
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