Modules/Filesystems/InitRD/GenerateInitRD.php

   1 <?php
   2 $lGenDate = date("Y-m-d H:i");
   3 $gOutput = <<<EOF
   4 /*
   5  * Acess2 InitRD
   6  * InitRD Data
   7  * Generated $lGenDate
   8  */
   9 #include "initrd.h"
  10
  11 EOF;
  12
  13 $ACESSDIR = getenv("ACESSDIR");
  14 $ARCH = getenv("ARCH");
  15
  16 $gInputFile = $argv[1];
  17 $gOutputFile = $argv[2];
  18 $gDepFile = ($argc > 3 ? $argv[3] : false);
  19
  20 $gDependencies = array();
  21
  22 $lines = file($argv[1]);
  23
  24 $lDepth = 0;
  25 $lTree = array();
  26 $lStack = array( array("",array()) );
  27 foreach($lines as $line)
  28 {
  29         $line = trim($line);
  30         // Directory
  31         if(preg_match('/^Dir\s+"([^"]+)"\s+{$/', $line, $matches))
  32         {
  33                 $new = array($matches[1], array());
  34                 array_push($lStack, $new);
  35                 $lDepth ++;
  36                 continue;
  37         }
  38         // End of a block
  39         if($line == "}")
  40         {
  41                 $lDepth --;
  42                 $lStack[$lDepth][1][] = array_pop($lStack);
  43                 continue;
  44         }
  45         // File
  46         if(preg_match('/^File\s+"([^"]+)"\s+"([^"]+)"$/', $line, $matches))
  47         {
  48                 $lStack[$lDepth][1][] = array($matches[1], $matches[2]);
  49                 continue;
  50         }
  51         echo "ERROR: $line\n";
  52         exit(0);
  53 }
  54
  55 function hd($fp)
  56 {
  57         //return "0x".str_pad( dechex(ord(fgetc($fp))), 8, "0", STR_PAD_LEFT );
  58         $val = unpack("I", fread($fp, 4));
  59         //print_r($val);        exit -1;
  60         return "0x".dechex($val[1]);
  61 }
  62
  63 function hd8($fp)
  64 {
  65         return "0x".str_pad( dechex(ord(fgetc($fp))), 2, "0", STR_PAD_LEFT );
  66 }
  67
  68 $inode = 0;
  69 function ProcessFolder($prefix, $items)
  70 {
  71         global  $gOutput, $gDependencies;
  72         global  $ACESSDIR, $ARCH;
  73         global  $inode;
  74         foreach($items as $i=>$item)
  75         {
  76                 $inode ++;
  77                 if(is_array($item[1]))
  78                 {
  79                         ProcessFolder("{$prefix}_{$i}", $item[1]);
  80
  81                         $gOutput .= "tInitRD_File {$prefix}_{$i}_entries[] = {\n";
  82                         foreach($item[1] as $j=>$child)
  83                         {
  84                                 if($j)  $gOutput .= ",\n";
  85                                 $gOutput .= "\t{\"".addslashes($child[0])."\",&{$prefix}_{$i}_{$j}}";
  86                         }
  87                         $gOutput .= "\n};\n";
  88
  89                         $size = count($item[1]);
  90                         $gOutput .= <<<EOF
  91 tVFS_Node {$prefix}_{$i} = {
  92         .NumACLs = 1,
  93         .ACLs = &gVFS_ACL_EveryoneRX,
  94         .Flags = VFS_FFLAG_DIRECTORY,
  95         .Size = $size,
  96         .Inode = {$inode},
  97         .ImplPtr = {$prefix}_{$i}_entries,
  98         .ReadDir = InitRD_ReadDir,
  99         .FindDir = InitRD_FindDir
 100 };
 101
 102 EOF;
 103                 }
 104                 else
 105                 {
 106                         $path = $item[1];
 107
 108                         // Parse path components
 109                         $path = str_replace("__BIN__", "$ACESSDIR/Usermode/Output/$ARCH", $path);
 110                         $path = str_replace("__FS__", "$ACESSDIR/Usermode/Filesystem", $path);
 111                         echo $path,"\n";
 112                         // ---
 113
 114                         $gDependencies[] = $path;
 115
 116                         if(!file_exists($path)) {
 117                                 echo "ERROR: '{$path}' does not exist\n",
 118                                 exit(1);
 119                         }
 120                         $size = filesize($path);
 121
 122                         $fp = fopen($path, "rb");
 123
 124                         $gOutput .= "Uint8 {$prefix}_{$i}_data[] = {\n";
 125                         for( $j = 0; $j + 16 < $size; $j += 16 ) {
 126                                 $gOutput .= "\t";
 127                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 128                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 129                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 130                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 131                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 132                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 133                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 134                                 $gOutput .= hd8($fp).",".hd8($fp).",\n";
 135                         }
 136                         $gOutput .= "\t";
 137                         for( ; $j < $size; $j ++ ) {
 138                                 if( $j & 15 )   $gOutput .= ",";
 139                                 $gOutput .= hd8($fp);
 140                         }
 141                         fclose($fp);
 142                         $gOutput .= "\n};\n";
 143                         $gOutput .= <<<EOF
 144 tVFS_Node {$prefix}_{$i} = {
 145         .NumACLs = 1,
 146         .ACLs = &gVFS_ACL_EveryoneRX,
 147         .Flags = 0,
 148         .Size = $size,
 149         .Inode = {$inode},
 150         .ImplPtr = {$prefix}_{$i}_data,
 151         .Read = InitRD_ReadFile
 152 };
 153
 154 EOF;
 155                 }
 156         }
 157 }
 158
 159 //print_r($lStack);
 160 //exit(1);
 161
 162 ProcessFolder("gInitRD_Files", $lStack[0][1]);
 163
 164 $gOutput .= "tInitRD_File gInitRD_Root_Files[] = {\n";
 165 foreach($lStack[0][1] as $j=>$child)
 166 {
 167         if($j)  $gOutput .= ",\n";
 168         $gOutput .= "\t{\"".addslashes($child[0])."\",&gInitRD_Files_{$j}}";
 169 }
 170 $gOutput .= "\n};\n";
 171 $nRootFiles = count($lStack[0][1]);
 172 $gOutput .= <<<EOF
 173 tVFS_Node gInitRD_RootNode = {
 174         .NumACLs = 1,
 175         .ACLs = &gVFS_ACL_EveryoneRX,
 176         .Flags = VFS_FFLAG_DIRECTORY,
 177         .Size = $nRootFiles,
 178         .ImplPtr = gInitRD_Root_Files,
 179         .ReadDir = InitRD_ReadDir,
 180         .FindDir = InitRD_FindDir
 181 };
 182 EOF;
 183
 184 $gOutput .= <<<EOF
 185
 186 tVFS_Node * const gInitRD_FileList[] = {
 187 &gInitRD_RootNode
 188 EOF;
 189
 190 function PutNodePointers($prefix, $items)
 191 {
 192         global $gOutput;
 193         foreach($items as $i=>$item)
 194         {
 195                 $gOutput .= ",&{$prefix}_{$i}";
 196                 if(is_array($item[1]))
 197                 {
 198                         PutNodePointers("{$prefix}_{$i}", $item[1]);
 199                 }
 200         }
 201 }
 202
 203 PutNodePointers("gInitRD_Files", $lStack[0][1]);
 204
 205 $gOutput .= <<<EOF
 206 };
 207 const int giInitRD_NumFiles = sizeof(gInitRD_FileList)/sizeof(gInitRD_FileList[0]);
 208
 209 EOF;
 210
 211
 212 $fp = fopen($gOutputFile, "w");
 213 fputs($fp, $gOutput);
 214 fclose($fp);
 215
 216
 217 if($gDepFile !== false)
 218 {
 219         $fp = fopen($gDepFile, "w");
 220         $line = $gOutputFile.":\t".implode(" ", $gDependencies);
 221         fputs($fp, $line);
 222         fclose($fp);
 223 }
 224
 225 ?>