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https://github.com/martravi/wiiqt6.git
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* symbolizer: dont do anything with r2 and r13 references for functions that dont match patterns
look for functions with a certain minimum size that only fit 1 place in the dol, then include branches off of that one, and branches off those, and so on until there are no more branches to follow git-svn-id: http://wiiqt.googlecode.com/svn/trunk@111 389f4c8b-5dfe-645f-db0e-df882bc27289
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giantpune
parent
d886066446
commit
fc190bfc93
@ -68,7 +68,7 @@ bool LoadDol( const QString &path )
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}
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else
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{
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//ba.resize( 0x807B3E88 - 0x80004000 );
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ba.resize( 0x807B3E88 - 0x80004000 );
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dol = Dol::FakeDol( ba, 0x80004000 );
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}
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foreach( const DolSection &sec, dol.TextSections() )
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@ -669,14 +669,14 @@ void TryToMatchData()
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}
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knownData << kd;
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/*qDebug() << hex << kd.addr << kd.len << kd.name << "from" << kd.file->Name();
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// print aliases
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foreach( const SymAlias &alias, kd.file->Aliases() )
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{
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if( alias.containerName == kd.name )
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{
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qDebug() << hex << " " << ( kd.addr + alias.offset ) << alias.size << alias.name;
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}
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}*/
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// print aliases
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foreach( const SymAlias &alias, kd.file->Aliases() )
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{
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if( alias.containerName == kd.name )
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{
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qDebug() << hex << " " << ( kd.addr + alias.offset ) << alias.size << alias.name;
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}
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}*/
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}
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RemoveOverlaps();
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}
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@ -1229,6 +1229,79 @@ QList< QPair< const ElfParser::Function *, quint32> > TryToMatchFunctions3( QLis
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return maybeMatches;
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}
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// looks for functions that DO contain a wildcard and only have 1 pattern match
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QList< QPair< const ElfParser::Function *, quint32> > TryToMatchFunctions4( QList< const ElfParser::Function * > &ignoreFunctions, quint32 minLen )
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{
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QMap< const ElfParser::Function *, const ElfParser::File * >fileMap;
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QList< QPair< const ElfParser::Function *, quint32> > maybeMatches;// keep track of functions to check
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foreach( const ElfParser::File &f, libFiles )// search each file
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{
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foreach( const ElfParser::Function &fun, f.Functions() )// search each function in each file
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{
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if( ignoreFunctions.contains( &fun ) || FunctionIsKnown( &fun ) )
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{
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continue;
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}
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quint32 len = fun.Pattern().length() / 2;
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if( len < minLen )
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{
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continue;
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}
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const QList< quint32 > &addrs = PatternMatches( &fun );
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if( addrs.size() != 1 )
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{
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continue;
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}
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quint32 addr = addrs.at( 0 );
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quint32 fEnd = addr + len;
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// see if inserting this function at this address will colide with any existing known data
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bool fail = false;
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foreach( const KnownFunction &kf1, knownFunctions )
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{
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if( !kf1.function )
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{
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continue;
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}
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quint32 start = kf1.addr;
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quint32 end = start + ( kf1.function->Pattern().size() / 2 );
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if( ( start >= addr && end < fEnd )
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|| ( addr >= start && fEnd < end ) )
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{
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fail = true;
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break;
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}
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}
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if( fail )
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{
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continue;
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}
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maybeMatches << QPair< const ElfParser::Function *, quint32 >( &fun, addr );
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fileMap[ &fun ] = &f;
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}
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}
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// cleanup the list
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CleanupList( maybeMatches );
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int s = maybeMatches.size();
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qDebug() << "Functions that only have 1 pattern match, contain wildcards, and are larger than 0x" << hex << minLen << "bytes:";
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for( int i = 0; i < s; i++ )
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{
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const QPair< const ElfParser::Function *, quint32 > &p = maybeMatches.at( i );
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qDebug() << hex << p.second << NStr( p.first->Pattern().size() / 2, 4 ) << p.first->Name();
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AddFunctionToKnownList( p.first, fileMap.find( p.first ).value(), p.second );
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}
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RemoveOverlaps();
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return maybeMatches;
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}
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#define INDENT_TXT QString( " " )
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QString CleanupNameString( const QString &name )// gcc puts the section name at the front of the user-given name
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@ -1259,13 +1332,13 @@ QString CleanupNameString( const QString &name )// gcc puts the section name at
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QString MakeIDC( const QString &dolPath, const QString &libPath, const QMap< const ElfParser::Function *, quint32 > &nonMatchingBranches )
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{
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QString ret = QString(
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"/***********************************************************\n"
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"* This file was created automatically with\n"
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"* DolPath: \"%1\"\n"
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"* LibPath: \"%2\"\n"
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"***********************************************************/\n"
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"\n"
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"#include <idc.idc>\n"
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"/***********************************************************\n"
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"* This file was created automatically with\n"
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"* DolPath: \"%1\"\n"
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"* LibPath: \"%2\"\n"
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"***********************************************************/\n"
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"\n"
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"#include <idc.idc>\n"
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"\n" )
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.arg( QFileInfo( dolPath ).absoluteFilePath() )
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.arg( QFileInfo( libPath ).absoluteFilePath() );
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@ -1339,7 +1412,7 @@ QString MakeIDC( const QString &dolPath, const QString &libPath, const QMap< con
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if( kf.file->Name() != libPath )
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{
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line += QString( "MakeComm( 0x%1, \"File: %2\" );" )
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.arg( kf.addr, 8, 16, QChar( '0' ) ).arg( kf.file->Name() );
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.arg( kf.addr, 8, 16, QChar( '0' ) ).arg( kf.file->Name() );
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}
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line += '\n';
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@ -1384,7 +1457,8 @@ QString MakeIDC( const QString &dolPath, const QString &libPath, const QMap< con
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.arg( it.key()->Pattern().size() / 2, 4, 16, QChar( '0' ) )
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.arg( CleanupNameString( it.key()->Name() ) );
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// do something cool here with the r13/rtoc references
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foreach( const SymRef &ref, it.key()->References() )
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// these cant be trusted since the functions here dont match expected patterns
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/*foreach( const SymRef &ref, it.key()->References() )
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{
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if( ref.type == SymRef::R_PPC_EMB_SDA21 )
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{
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@ -1392,7 +1466,7 @@ QString MakeIDC( const QString &dolPath, const QString &libPath, const QMap< con
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.arg( it.value() + ( ref.off & ~3 ), 8, 16, QChar( '0' ) )
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.arg( CleanupNameString( ref.name ) );
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}
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}
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}*/
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}
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ret += "\n}\n";
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}
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@ -1440,6 +1514,13 @@ int main(int argc, char *argv[])
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QString libPath( argv[ 2 ] );
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QString outName( argv[ 3 ] );
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// derp
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//dolPath = "/home/j/c/hackmiiHaxx/disassembly/mem1-decrypt_60.bin";
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//libPath = "/home/j/devkitPRO/libogc/lib/wii";
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//dolPath = "/home/j/c/WWE12_haxx/main.dol";
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//libPath = "/home/j/devkitPRO/libogc/lib/wii";
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qDebug() << "Loading dol...";
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if( !LoadDol( dolPath ) )
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{
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@ -1502,6 +1583,26 @@ int main(int argc, char *argv[])
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num = num2;
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}
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// look for functions that only match 1 place, have a certain minimum length, and dont overlap any known data.
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TryToMatchFunctions4( ignoreFunctions, 0x40 );
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TryToMatchFunctions4( ignoreFunctions, 0x30 );
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// try to follow branches from these functions until no new ones are discovered
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num = knownFunctions.size();
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for( int i = 0; i < maxRetries; i++ )
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{
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qDebug() << " -- Round" << i << '/' << maxRetries << " following branches --";
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TryToMatchFunctions2( nonMatchingBranches );
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int num2 = knownFunctions.size();
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if( num2 == num )
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{
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break;
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}
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qDebug() << " - added" << ( num2 - num ) << "new functions -";
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num = num2;
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}
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qDebug() << "Total data matches: " << knownData.size();
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qDebug() << "Total functions found:" << knownFunctions.size();
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