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 $gOutputLDOptsFile = $argv[3];
  19 $gDepFile = ($argc > 4 ? $argv[4] : false);
  20
  21 $gDependencies = array();
  22
  23 $lines = file($argv[1]);
  24
  25 $lDepth = 0;
  26 $lTree = array();
  27 $lStack = array( array("",array()) );
  28 foreach($lines as $line)
  29 {
  30         $line = trim($line);
  31         // Directory
  32         if(preg_match('/^Dir\s+"([^"]+)"\s+{$/', $line, $matches))
  33         {
  34                 $new = array($matches[1], array());
  35                 array_push($lStack, $new);
  36                 $lDepth ++;
  37                 continue;
  38         }
  39         // End of a block
  40         if($line == "}")
  41         {
  42                 $lDepth --;
  43                 $lStack[$lDepth][1][] = array_pop($lStack);
  44                 continue;
  45         }
  46         // File
  47         if(preg_match('/^File\s+"([^"]+)"\s+"([^"]+)"$/', $line, $matches))
  48         {
  49                 $lStack[$lDepth][1][] = array($matches[1], $matches[2]);
  50                 continue;
  51         }
  52         echo "ERROR: $line\n";
  53         exit(0);
  54 }
  55
  56 function hd($fp)
  57 {
  58         //return "0x".str_pad( dechex(ord(fgetc($fp))), 8, "0", STR_PAD_LEFT );
  59         $val = unpack("I", fread($fp, 4));
  60         //print_r($val);        exit -1;
  61         return "0x".dechex($val[1]);
  62 }
  63
  64 function hd8($fp)
  65 {
  66         return "0x".str_pad( dechex(ord(fgetc($fp))), 2, "0", STR_PAD_LEFT );
  67 }
  68
  69 $inode = 0;
  70 $gSymFiles = array();
  71 function ProcessFolder($prefix, $items)
  72 {
  73         global  $gOutput, $gDependencies;
  74         global  $ACESSDIR, $ARCH;
  75         global  $inode;
  76         global  $gSymFiles;
  77         foreach($items as $i=>$item)
  78         {
  79                 $inode ++;
  80                 if(is_array($item[1]))
  81                 {
  82                         ProcessFolder("{$prefix}_{$i}", $item[1]);
  83
  84                         $gOutput .= "tInitRD_File {$prefix}_{$i}_entries[] = {\n";
  85                         foreach($item[1] as $j=>$child)
  86                         {
  87                                 if($j)  $gOutput .= ",\n";
  88                                 $gOutput .= "\t{\"".addslashes($child[0])."\",&{$prefix}_{$i}_{$j}}";
  89                         }
  90                         $gOutput .= "\n};\n";
  91
  92                         $size = count($item[1]);
  93                         $gOutput .= <<<EOF
  94 tVFS_Node {$prefix}_{$i} = {
  95         .NumACLs = 1,
  96         .ACLs = &gVFS_ACL_EveryoneRX,
  97         .Flags = VFS_FFLAG_DIRECTORY,
  98         .Size = $size,
  99         .Inode = {$inode},
 100         .ImplPtr = {$prefix}_{$i}_entries,
 101         .ReadDir = InitRD_ReadDir,
 102         .FindDir = InitRD_FindDir
 103 };
 104
 105 EOF;
 106                 }
 107                 else
 108                 {
 109                         $path = $item[1];
 110
 111                         // Parse path components
 112                         $path = str_replace("__BIN__", "$ACESSDIR/Usermode/Output/$ARCH", $path);
 113                         $path = str_replace("__FS__", "$ACESSDIR/Usermode/Filesystem", $path);
 114                         $path = str_replace("__SRC__", "$ACESSDIR", $path);
 115                         echo $path,"\n";
 116                         // ---
 117
 118                         $gDependencies[] = $path;
 119
 120                         if(!file_exists($path)) {
 121                                 echo "ERROR: '{$path}' does not exist\n",
 122                                 exit(1);
 123                         }
 124                         $size = filesize($path);
 125
 126 /*
 127                         $_sym = $prefix."_".$i."_data";
 128                         $fp = fopen($path, "rb");
 129
 130                         $gOutput .= "Uint8 $_sym[] = {\n";
 131                         for( $j = 0; $j + 16 < $size; $j += 16 ) {
 132                                 $gOutput .= "\t";
 133                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 134                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 135                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 136                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 137                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 138                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 139                                 $gOutput .= hd8($fp).",".hd8($fp).",";
 140                                 $gOutput .= hd8($fp).",".hd8($fp).",\n";
 141                         }
 142                         $gOutput .= "\t";
 143                         for( ; $j < $size; $j ++ ) {
 144                                 if( $j & 15 )   $gOutput .= ",";
 145                                 $gOutput .= hd8($fp);
 146                         }
 147                         fclose($fp);
 148                         $gOutput .= "\n};\n";
 149 */
 150
 151 //*
 152                         $_sym = "_binary_".str_replace(array("/","-","."), "_", $path)."_start";
 153                         $gOutput .= "extern Uint8 {$_sym}[];";
 154                         $gSymFiles[] = $path;
 155 //*/
 156                         $gOutput .= <<<EOF
 157 tVFS_Node {$prefix}_{$i} = {
 158         .NumACLs = 1,
 159         .ACLs = &gVFS_ACL_EveryoneRX,
 160         .Flags = 0,
 161         .Size = $size,
 162         .Inode = {$inode},
 163         .ImplPtr = $_sym,
 164         .Read = InitRD_ReadFile
 165 };
 166
 167 EOF;
 168                 }
 169         }
 170 }
 171
 172 //print_r($lStack);
 173 //exit(1);
 174
 175 ProcessFolder("gInitRD_Files", $lStack[0][1]);
 176
 177 $gOutput .= "tInitRD_File gInitRD_Root_Files[] = {\n";
 178 foreach($lStack[0][1] as $j=>$child)
 179 {
 180         if($j)  $gOutput .= ",\n";
 181         $gOutput .= "\t{\"".addslashes($child[0])."\",&gInitRD_Files_{$j}}";
 182 }
 183 $gOutput .= "\n};\n";
 184 $nRootFiles = count($lStack[0][1]);
 185 $gOutput .= <<<EOF
 186 tVFS_Node gInitRD_RootNode = {
 187         .NumACLs = 1,
 188         .ACLs = &gVFS_ACL_EveryoneRX,
 189         .Flags = VFS_FFLAG_DIRECTORY,
 190         .Size = $nRootFiles,
 191         .ImplPtr = gInitRD_Root_Files,
 192         .ReadDir = InitRD_ReadDir,
 193         .FindDir = InitRD_FindDir
 194 };
 195 EOF;
 196
 197 $gOutput .= <<<EOF
 198
 199 tVFS_Node * const gInitRD_FileList[] = {
 200 &gInitRD_RootNode
 201 EOF;
 202
 203 function PutNodePointers($prefix, $items)
 204 {
 205         global $gOutput;
 206         foreach($items as $i=>$item)
 207         {
 208                 $gOutput .= ",&{$prefix}_{$i}";
 209                 if(is_array($item[1]))
 210                 {
 211                         PutNodePointers("{$prefix}_{$i}", $item[1]);
 212                 }
 213         }
 214 }
 215
 216 PutNodePointers("gInitRD_Files", $lStack[0][1]);
 217
 218 $gOutput .= <<<EOF
 219 };
 220 const int giInitRD_NumFiles = sizeof(gInitRD_FileList)/sizeof(gInitRD_FileList[0]);
 221
 222 EOF;
 223
 224
 225 $fp = fopen($gOutputFile, "w");
 226 fputs($fp, $gOutput);
 227 fclose($fp);
 228
 229 // - Create options call
 230 $fp = fopen($gOutputLDOptsFile, "w");
 231 fputs($fp, "--format binary\n");
 232 foreach($gSymFiles as $sym=>$file)
 233 {
 234         fputs($fp, "$file\n");
 235 //      fputs($fp, "--defsym $sym=_binary_".$sym_filename."_start\n");
 236 }
 237 fclose($fp);
 238
 239 if($gDepFile !== false)
 240 {
 241         $fp = fopen($gDepFile, "w");
 242         $line = $gOutputFile.":\t".implode(" ", $gDependencies);
 243         fputs($fp, $line);
 244         fclose($fp);
 245 }
 246
 247 ?>