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1 # |
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2 # Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 # All rights reserved. |
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4 # This component and the accompanying materials are made available |
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5 # under the terms of the License "Eclipse Public License v1.0" |
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6 # which accompanies this distribution, and is available |
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7 # at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 # |
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9 # Initial Contributors: |
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10 # Nokia Corporation - initial contribution. |
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11 # |
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12 # Contributors: |
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13 # |
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14 # Description: |
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15 # Perl script to dump the ROM root directory |
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16 # |
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17 |
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18 my $imagefile="ba_001.engbuild.img"; |
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19 my $imageoffset=0; |
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20 my $readsortedarrays = 1; |
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21 my $imagetype="none"; |
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22 |
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23 sub usage_and_die |
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24 { |
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25 die "Usage: $0 [-no-sorted-arrays] [imagefile]\n"; |
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26 } |
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27 |
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28 usage_and_die() if (@ARGV>2); |
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29 |
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30 foreach(@ARGV) |
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31 { |
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32 if (uc($_) eq '-NO-SORTED-ARRAYS') |
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33 { |
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34 $readsortedarrays = 0; |
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35 } |
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36 else |
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37 { |
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38 $imagefile = $_; |
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39 } |
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40 } |
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41 |
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42 # |
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43 # |
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44 # |
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45 |
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46 open IMAGE, "<$imagefile" or die "Cannot open $imagefile"; |
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47 binmode IMAGE; |
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48 |
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49 my $imagedata; |
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50 my $errors=0; |
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51 my $romrootdirectory; |
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52 |
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53 read IMAGE, $imagedata, 20; |
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54 if ($imagedata =~ /^EPOC....ROM/) |
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55 { |
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56 $imageoffset -= 256; # compensate for REPRO header |
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57 } |
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58 else |
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59 { |
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60 # No REPRO header, rewind back to the start |
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61 seek(IMAGE,0, 0) |
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62 } |
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63 |
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64 # |
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65 # identify the image type |
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66 # |
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67 |
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68 my $coresize=0; |
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69 my $id=readword(0); |
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70 if ($id == 0x53464f52) # ROFS |
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71 { |
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72 $coresize=readword(0x2c); |
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73 printf "Core ROFS ROM image: %s\n", $imagefile; |
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74 $imagetype="ROFS"; |
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75 $romrootdirectory = readword(8); |
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76 } |
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77 elsif ($id == 0x78464f52) # ROFx |
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78 { |
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79 printf "Extension ROFS ROM image: %s\n", $imagefile; |
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80 $imagetype="ROFx"; |
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81 exit (1); |
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82 } |
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83 else |
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84 { |
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85 printf "Unknown ROM image type: %s\n", $imagefile; |
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86 exit (1); |
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87 } |
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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 my @directories; |
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94 push @directories, $romrootdirectory; |
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95 if (seek(IMAGE, $coresize+8, 0)) |
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96 { |
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97 my $extdir=0; |
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98 $extdir=readword($coresize+8); |
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99 if ($extdir) { |
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100 push @directories, $extdir; |
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101 printf "Extended ROFS @ %08x\n", $coresize; |
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102 } |
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103 } |
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104 |
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105 my $root; |
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106 foreach $root (@directories) |
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107 { |
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108 printf "\n\nDirectory @ 0x%08x:\n", $root; |
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109 print_directory($root, ""); |
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110 } |
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111 |
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112 my %seen_before; |
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113 |
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114 sub print_sortedarrays |
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115 { |
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116 return if (!$readsortedarrays); |
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117 my $entry = shift ; |
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118 my $prefix = shift; |
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119 my $sortedarrayptr=$entry+4; |
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120 my $dircount=readshort($entry); |
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121 my $filecount=readshort($entry+2); |
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122 |
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123 printf "%s dirs[%d]=[",$prefix, $dircount; |
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124 while ($dircount--) |
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125 { |
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126 printf "%04x",readshort($sortedarrayptr); |
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127 printf "," if $dircount; |
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128 $sortedarrayptr+=2; |
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129 } |
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130 print "]\n"; |
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131 |
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132 printf "%s files[%d]=[",$prefix,$filecount; |
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133 while ($filecount--) |
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134 { |
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135 printf "%04x",readshort($sortedarrayptr); |
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136 printf "," if $filecount; |
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137 $sortedarrayptr+=2; |
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138 } |
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139 print "]\n"; |
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140 |
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141 } |
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142 |
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143 sub print_entry |
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144 { |
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145 my ($entry, $prefix) = @_; |
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146 |
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147 my $size = readshort($entry); |
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148 my $nameoffset = readbyte(-1); |
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149 my $attributes = readbyte(-1); |
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150 my $filesize = readword(-1); |
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151 |
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152 my $fileoffset = readword(-1); # fileaddr |
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153 my $attributesextra = readbyte(-1); |
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154 |
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155 my $namelen = readbyte(-1); |
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156 my $name = readimage($namelen*2, -1); |
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157 $name =~ s/(.)./$1/g; # drop high byte of Unicode characters |
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158 |
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159 printf "%s %s\t%08x %02x %3d %08x\n", $prefix,$name, $entry, |
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160 $attributes, $filesize, $fileoffset; |
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161 |
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162 } |
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163 |
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164 sub print_directory |
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165 { |
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166 my ($dir, $prefix) = @_; |
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167 if ($seen_before{$dir} == 1) |
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168 { |
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169 printf "%s ...\n", $prefix; |
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170 return; |
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171 } |
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172 $seen_before{$dir} = 1; |
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173 my $dirstructsize=readshort($dir); |
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174 my $firstentryoffset=readbyte($dir+3); |
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175 my $entry = $dir+$firstentryoffset; |
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176 my $end = $dir+$dirstructsize; |
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177 |
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178 # print the files in this dir |
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179 # |
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180 my $fileblockoffset = readword($dir+4); |
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181 my $fileblocksize = readword($dir+8); |
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182 while ($fileblocksize>0) |
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183 { |
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184 my $fileentrysize=readshort($fileblockoffset); |
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185 print_entry($fileblockoffset, "$prefix"); |
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186 $fileblocksize-=$fileentrysize; |
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187 $fileblockoffset+=$fileentrysize; |
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188 } |
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189 |
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190 # print the sub dirs |
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191 my $firstentry = $entry; |
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192 while ($entry < $end) |
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193 { |
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194 my $size = readshort($entry); |
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195 my $nameoffset = readbyte(-1); |
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196 my $attributes = readbyte(-1); |
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197 my $filesize = readword(-1); |
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198 |
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199 my $fileoffset = readword(-1); # fileaddr |
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200 my $attributesextra = readbyte(-1); |
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201 |
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202 my $namelen = readbyte(-1); |
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203 my $name = readimage($namelen*2, -1); |
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204 $name =~ s/(.)./$1/g; # drop high byte of Unicode characters |
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205 |
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206 printf "%s %s\\\t%08x \n", $prefix, $name, $entry; |
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207 print_directory($fileoffset, "$prefix |"); |
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208 |
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209 $entry += $size; |
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210 $entry = ($entry+3)&~3; |
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211 } |
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212 |
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213 } |
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214 |
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215 |
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216 |
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217 # |
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218 # read image subroutines |
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219 # |
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220 |
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221 sub readimage |
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222 { |
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223 my ($length, $linaddr) = @_; |
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224 my $imagedata; |
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225 |
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226 if ($linaddr>=0) |
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227 { |
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228 if (!seek(IMAGE, $linaddr-$imageoffset, 0)) |
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229 { |
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230 printf "Can't seek to address 0x%x\n", $linaddr; |
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231 $errors++; |
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232 return ""; |
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233 } |
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234 } |
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235 read IMAGE, $imagedata, $length; |
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236 return $imagedata; |
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237 } |
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238 |
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239 sub readbyte |
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240 { |
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241 my ($linaddr) = @_; |
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242 return unpack "C", readimage(1, $linaddr); |
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243 } |
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244 |
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245 sub readword |
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246 { |
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247 my ($linaddr) = @_; |
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248 return unpack "V", readimage(4, $linaddr); |
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249 } |
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250 |
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251 sub readshort |
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252 { |
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253 my ($linaddr) = @_; |
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254 return unpack "v", readimage(2, $linaddr); # unsigned short in little-endian |
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255 } |