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/***************************************************************************
* Copyright (C) 2006 Nicolas Hadacek <[email protected]> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#include "debug_manager.h"
#include <tqtimer.h>
#include <tqeventloop.h>
#include "coff/base/text_coff.h"
#include "coff/base/cdb_parser.h"
#include "progs/base/generic_prog.h"
#include "progs/base/generic_debug.h"
#include "progs/base/prog_group.h"
#include "devices/base/register.h"
#include "progs/base/debug_config.h"
#include "prog_manager.h"
Debugger::Manager *Debugger::manager = 0;
Debugger::Manager::Manager()
: TQObject(Programmer::manager, "debug_manager"), Log::Base(Programmer::manager), GenericView(Breakpoint::list()),
_coff(0), _data(0)
{
connect(&_runTimer, TQ_SIGNAL(timeout()), TQ_SLOT(slotRunTimeout()));
connect(&_stepTimer, TQ_SIGNAL(timeout()), TQ_SLOT(doStep()));
}
Debugger::Manager::~Manager()
{
delete _coff;
}
bool Debugger::Manager::isStepping() const
{
return (programmer() ? programmer()->state()==Programmer::Halted : false) && _stepTimer.isActive();
}
Debugger::Base *Debugger::Manager::debugger() const
{
return (programmer() ? programmer()->debugger() : 0);
}
void Debugger::Manager::updateDevice()
{
const Device::Data *data = deviceData();
if ( data==_data ) return;
_data = data;
Register::list().clearWatched();
clear();
}
bool Debugger::Manager::checkState(bool &first)
{
if ( programmer()->state()==Programmer::NotConnected ) {
if ( !prepareDebugging() ) return false;
if ( !programmer()->connectHardware() ) return false;
}
first = ( debugger()->hasError() || programmer()->state()==Programmer::Stopped );
if (first) {
log(Log::LineType::Normal, "--------------------------------------------------");
programmer()->debugger()->setCoff(_coff);
if ( !programmer()->debugger()->init() ) return false;
}
return true;
}
bool Debugger::Manager::init()
{
if ( !internalInit() ) return false;
return update(true);
}
bool Debugger::Manager::internalInit()
{
clear();
if ( !coffUrl().exists() ) return false;
Log::Base log;
log.setView(compileView());
log.log(Log::LineType::Information, i18n("Parsing COFF file: %1").arg(coffUrl().pretty()));
_coff = new Coff::TextObject(_data, coffUrl());
if ( !_coff->parse(log) ) {
delete _coff;
_coff = 0;
return false;
}
computeBreakpointAddresses();
return true;
}
void Debugger::Manager::clearBreakpoints()
{
Breakpoint::list().clear();
}
void Debugger::Manager::freeActiveBreakpoint()
{
uint nb = 0;
Breakpoint::Data last;
for (uint i=0; i<Breakpoint::list().count(); i++) {
const Breakpoint::Data &data = Breakpoint::list().data(i);
if ( Breakpoint::list().state(data)!=Breakpoint::Active ) continue;
nb++;
last = data;
}
uint max = programmerGroup()->maxNbBreakpoints(deviceData());
Q_ASSERT( nb<=max && max!=0 );
if ( nb==max ) {
log(Log::LineType::Warning, i18n("The number of active breakpoints is higher than the maximum for the current debugger (%1): disabling the last breakpoint.").arg(max));
Breakpoint::list().setState(last, Breakpoint::Disabled);
}
}
BitValue Debugger::Manager::pc() const
{
return (debugger() ? debugger()->pc() : BitValue());
}
Breakpoint::MarkType Debugger::Manager::breakpointType(const Breakpoint::Data &data) const
{
if ( _coff==0 ) return Breakpoint::BreakpointDisabled;
Address address = Breakpoint::list().address(data);
if ( !address.isValid() ) return Breakpoint::BreakpointInvalid;
if ( Breakpoint::list().state(data)!=Breakpoint::Active ) return Breakpoint::BreakpointDisabled;
if ( address==pc() ) {
if ( programmer()->state()==::Programmer::Halted ) return Breakpoint::BreakpointReached;
return Breakpoint::ProgramCounterDisabled;
}
return Breakpoint::BreakpointActive;
}
bool Debugger::Manager::checkBreakpoint(const Breakpoint::Data &bdata, bool onlyWarn, Address &address)
{
address = Address();
if ( _coff==0 ) return true;
TQValueVector<Address> addresses = _coff->addresses(bdata.url, bdata.line);
if ( addresses.isEmpty() ) {
TQString s = i18n("Breakpoint at non-code line.");
if (onlyWarn) log(Log::LineType::Warning, s);
else sorry(s);
return false;
}
if ( addresses.count()>1 ) log(Log::LineType::Warning, i18n("Breakpoint corresponds to several addresses. Using the first one."));
address = addresses[0];
return true;
}
void Debugger::Manager::computeBreakpointAddresses()
{
if ( programmerGroup()==0 ) return;
int nb = programmerGroup()->maxNbBreakpoints(deviceData());
for (int i=Breakpoint::list().count()-1; i>=0; i--) {
const Breakpoint::Data &data = Breakpoint::list().data(i);
Address address;
checkBreakpoint(data, true, address);
Breakpoint::list().setAddress(data, address);
if ( _coff==0 ) Breakpoint::list().setState(data, Breakpoint::Unknown);
else if ( Breakpoint::list().address(data).isValid() && nb>0 ) {
Breakpoint::list().setState(data, Breakpoint::Active);
nb--;
}
}
}
TQValueList<Address> Debugger::Manager::activeBreakpointAddresses() const
{
TQValueList<Address> addresses;
for (uint i=0; i<Breakpoint::list().count(); i++) {
const Breakpoint::Data &data = Breakpoint::list().data(i);
if ( Breakpoint::list().state(data)==Breakpoint::Active ) addresses.append(Breakpoint::list().address(data));
}
return addresses;
}
void Debugger::Manager::clear()
{
_runTimer.stop();
_stepTimer.stop();
if ( programmer() ) programmer()->clear();
delete _coff;
_coff = 0;
_currentSourceLines.clear();
computeBreakpointAddresses();
update(true);
}
bool Debugger::Manager::update(bool gotoPC)
{
_readRegisters.clear();
if ( !updateRegisters() ) return false;
if ( debugger() ) emit statusChanged(debugger()->statusString());
else emit statusChanged(TQString());
_currentSourceLines.clear();
if (_coff) _currentSourceLines = _coff->sourceLinesForAddress(pc().toUInt());
updateView(gotoPC);
return true;
}
bool Debugger::Manager::updateRegister(const Register::TypeData &data)
{
// read related registers
const Device::RegistersData *rdata = deviceData()->registersData();
Q_ASSERT(rdata);
TQValueList<Register::TypeData> related = rdata->relatedRegisters(data);
for (uint k=0; k<uint(related.count()); k++)
if ( !readRegister(related[k]) ) return false;
// read port status
if ( data.type()==Register::Regular ) {
int index = rdata->portIndex(data.address());
if ( index!=-1 ) {
TQMap<uint, Device::PortBitData> data;
if ( !debugger()->updatePortStatus(index, data) ) return false;
Register::list().setPortData(index, data);
}
}
return true;
}
bool Debugger::Manager::updateRegisters()
{
if ( programmer()==0 || programmer()->state()!=Programmer::Halted ) return true;
TQValueList<Register::TypeData> watched = Register::list().watched();
for (uint i=0; i<uint(watched.count()); i++)
if ( !updateRegister(watched[i]) ) return false;
return true;
}
bool Debugger::Manager::run()
{
_stepTimer.stop();
_runTimer.stop();
bool first;
if ( !checkState(first) ) return false;
if ( !debugger()->setBreakpoints(activeBreakpointAddresses()) ) return false;
if ( !debugger()->run() ) return false;
log(Log::LineType::Information, i18n("Running..."));
if ( !update(true) ) return false;
_runTimer.start(programmer()->runUpdateWait());
return true;
}
bool Debugger::Manager::halt()
{
_stepTimer.stop();
_runTimer.stop();
if ( !debugger()->halt() ) return false;
return update(true);
}
bool Debugger::Manager::reset()
{
_stepTimer.stop();
_runTimer.stop();
log(Log::LineType::Normal, "--------------------------------------------------");
if ( !debugger()->reset() ) return false;
return doStep(true, false);
}
bool Debugger::Manager::checkIfContinueStepping(bool &continueStepping)
{
continueStepping = false;
if ( !readConfigEntry(Config::OnlyStopOnSourceLine).toBool() ) return true;
if ( !update(false) ) return false;
TQMap<PURL::Url, uint>::const_iterator it;
for (it=_currentSourceLines.begin(); it!=_currentSourceLines.end(); ++it) {
PURL::FileGroup group = it.key().fileType().data().group;
if ( group!=PURL::Source && group!=PURL::Header ) continue;
if ( !it.key().exists() ) continue;
if ( readConfigEntry(Config::OnlyStopOnProjectSourceLine).toBool() && !isProjectSource(it.key()) ) continue;
TQValueVector<Address> addresses = _coff->addresses(it.key(), it.data());
qHeapSort(addresses);
Q_ASSERT( addresses.count()!=0 );
if ( pc()!=addresses[0] ) continue; // we only break if pc is on the first instruction of the source line
break;
}
continueStepping = ( it==_currentSourceLines.end() );
return true;
}
bool Debugger::Manager::doStep(bool first, bool continued)
{
if ( programmer()->state()!=Programmer::Halted ) return true; // has been stopped
if ( continued && !_stepTimer.isActive() ) return true; // has been stopped
_stepTimer.stop();
if ( !first && !debugger()->step() ) return false;
bool continueStepping;
if ( !checkIfContinueStepping(continueStepping) ) return false;
if (continueStepping) _stepTimer.start(0);
else updateView(true);
return true;
}
bool Debugger::Manager::step()
{
bool first;
if ( !checkState(first) ) return false;
if ( !debugger()->setBreakpoints(activeBreakpointAddresses()) ) return false;
log(Log::LineType::Information, i18n("Step"));
programmer()->setState(Programmer::Halted);
return doStep(first, false);
}
void Debugger::Manager::slotRunTimeout()
{
if ( programmer()->state()!=Programmer::Running ) return; // has been stopped
if ( !_runTimer.isActive() ) return; // has been stopped
_runTimer.stop();
if ( !debugger()->update() ) return;
if ( programmer()->state()==Programmer::Running ) {
_runTimer.start(programmer()->runUpdateWait());
return;
}
log(Log::LineType::Information, i18n("Reached breakpoint."));
update(true);
emit targetStateChanged();
}
void Debugger::Manager::setRegisterWatched(const Register::TypeData &data, bool watched)
{
if (watched) {
if ( Register::list().isWatched(data) ) return;
Register::list().setWatched(data, true);
if ( programmer() && programmer()->state()==Programmer::Halted ) updateRegister(data);
} else Register::list().setWatched(data, false);
}
bool Debugger::Manager::readRegister(const Register::TypeData &data)
{
Q_ASSERT( data.type()==Register::Regular || data.type()==Register::Special );
if ( _readRegisters.contains(data) ) return true;
BitValue value;
if ( !debugger()->readRegister(data, value) ) return false;
Register::list().setValue(data, value);
_readRegisters.append(data);
return true;
}
bool Debugger::Manager::writeRegister(const Register::TypeData &data, BitValue value)
{
Q_ASSERT( data.type()==Register::Regular || data.type()==Register::Special );
if ( !debugger()->writeRegister(data, value) ) return false;
_readRegisters.clear();
if ( !updateRegister(data) ) return false;
emit statusChanged(debugger()->statusString());
return true;
}
bool Debugger::Manager::readAllRegisters()
{
const Device::RegistersData *rdata = _data->registersData();
for (uint i=0; i<rdata->nbRegisters(); i++) {
Register::TypeData rtd(rdata->addressFromIndex(i), rdata->nbChars());
if ( !updateRegister(rtd) ) return false;
}
return true;
}
void Debugger::Manager::stopWatchAll()
{
Register::list().clearWatched();
}
bool Debugger::Manager::prepareDebugging()
{
if ( programmerGroup()->isSoftware() && programmerGroup()->isDebugger() ) {
PURL::Url curl = coffUrl();
if ( curl.isEmpty() ) {
log(Log::LineType::Error, i18n("Cannot start debugging session without input file (not specified)."));
return false;
}
PURL::Url first;
uint i = 0;
for (; i<Programmer::Nb_InputFileTypes; i++) {
PURL::FileType type = Programmer::INPUT_FILE_TYPE_DATA[i];
if ( !programmerGroup()->isInputFileTypeSupported(type) ) continue;
PURL::Url url = curl.toFileType(type);
if ( first.isEmpty() ) first = url;
if ( !url.exists() ) continue;
debugger()->setupInput(type, url.directory().path(), url.filename());
break;
}
if ( i==Programmer::Nb_InputFileTypes ) {
log(Log::LineType::Error, i18n("Cannot start debugging session without input file (%1).").arg(first.pretty()));
return false;
}
}
return true;
}
#include "debug_manager.moc"
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