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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms and
** conditions see http://www.qt.io/terms-conditions. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "moduleshandler.h"
#include <utils/qtcassert.h>
#include <utils/treemodel.h>
#include <QCoreApplication>
#include <QDebug>
#include <QSortFilterProxyModel>
using namespace Utils;
//////////////////////////////////////////////////////////////////
//
// ModulesModel
//
//////////////////////////////////////////////////////////////////
namespace Debugger {
namespace Internal {
class ModuleItem : public TreeItem
{
public:
QVariant data(int column, int role) const;
public:
Module module;
bool updated;
};
QVariant ModuleItem::data(int column, int role) const
{
switch (column) {
case 0:
if (role == Qt::DisplayRole)
return module.moduleName;
// FIXME: add icons
//if (role == Qt::DecorationRole)
// return module.symbolsRead ? icon2 : icon;
break;
case 1:
if (role == Qt::DisplayRole)
return module.modulePath;
if (role == Qt::ToolTipRole) {
QString msg;
if (!module.elfData.buildId.isEmpty())
msg += QString::fromLatin1("Build Id: " + module.elfData.buildId);
if (!module.elfData.debugLink.isEmpty())
msg += QString::fromLatin1("Debug Link: " + module.elfData.debugLink);
return msg;
}
break;
case 2:
if (role == Qt::DisplayRole)
switch (module.symbolsRead) {
case Module::UnknownReadState: return ModulesHandler::tr("Unknown");
case Module::ReadFailed: return ModulesHandler::tr("No");
case Module::ReadOk: return ModulesHandler::tr("Yes");
}
break;
case 3:
if (role == Qt::DisplayRole)
switch (module.elfData.symbolsType) {
case UnknownSymbols:
return ModulesHandler::tr("Unknown");
case NoSymbols:
return ModulesHandler::tr("None");
case PlainSymbols:
return ModulesHandler::tr("Plain");
case FastSymbols:
return ModulesHandler::tr("Fast");
case LinkedSymbols:
return ModulesHandler::tr("debuglnk");
case BuildIdSymbols:
return ModulesHandler::tr("buildid");
}
else if (role == Qt::ToolTipRole)
switch (module.elfData.symbolsType) {
case UnknownSymbols:
return ModulesHandler::tr(
"It is unknown whether this module contains debug "
"information.\nUse \"Examine Symbols\" from the "
"context menu to initiate a check.");
case NoSymbols:
return ModulesHandler::tr(
"This module neither contains nor references debug "
"information.\nStepping into the module or setting "
"breakpoints by file and line will not work.");
case PlainSymbols:
return ModulesHandler::tr(
"This module contains debug information.\nStepping "
"into the module or setting breakpoints by file and "
"line is expected to work.");
case FastSymbols:
return ModulesHandler::tr(
"This module contains debug information.\nStepping "
"into the module or setting breakpoints by file and "
"line is expected to work.");
case LinkedSymbols:
case BuildIdSymbols:
return ModulesHandler::tr(
"This module does not contain debug information "
"itself, but contains a reference to external "
"debug information.");
}
break;
case 4:
if (role == Qt::DisplayRole)
if (module.startAddress)
return QString(QLatin1String("0x")
+ QString::number(module.startAddress, 16));
break;
case 5:
if (role == Qt::DisplayRole) {
if (module.endAddress)
return QString(QLatin1String("0x")
+ QString::number(module.endAddress, 16));
//: End address of loaded module
return ModulesHandler::tr("<unknown>", "address");
}
break;
}
return QVariant();
}
//////////////////////////////////////////////////////////////////
//
// ModulesHandler
//
//////////////////////////////////////////////////////////////////
static ModuleItem *moduleFromPath(TreeItem *root, const QString &modulePath)
{
// Recent modules are more likely to be unloaded first.
for (int i = root->rowCount(); --i >= 0; ) {
auto item = static_cast<ModuleItem *>(root->child(i));
if (item->module.modulePath == modulePath)
return item;
}
return 0;
}
ModulesHandler::ModulesHandler(DebuggerEngine *engine)
{
m_engine = engine;
QString pad = QLatin1String(" ");
m_model = new TreeModel(this);
m_model->setObjectName(QLatin1String("ModulesModel"));
m_model->setHeader(QStringList()
<< ModulesHandler::tr("Module Name") + pad
<< ModulesHandler::tr("Module Path") + pad
<< ModulesHandler::tr("Symbols Read") + pad
<< ModulesHandler::tr("Symbols Type") + pad
<< ModulesHandler::tr("Start Address") + pad
<< ModulesHandler::tr("End Address") + pad);
m_proxyModel = new QSortFilterProxyModel(this);
m_proxyModel->setObjectName(QLatin1String("ModulesProxyModel"));
m_proxyModel->setSourceModel(m_model);
}
QAbstractItemModel *ModulesHandler::model() const
{
return m_proxyModel;
}
void ModulesHandler::removeAll()
{
m_model->clear();
}
Modules ModulesHandler::modules() const
{
Modules mods;
TreeItem *root = m_model->rootItem();
for (int i = root->rowCount(); --i >= 0; )
mods.append(static_cast<ModuleItem *>(root->child(i))->module);
return mods;
}
void ModulesHandler::removeModule(const QString &modulePath)
{
if (ModuleItem *item = moduleFromPath(m_model->rootItem(), modulePath))
delete m_model->takeItem(item);
}
void ModulesHandler::updateModule(const Module &module)
{
const QString path = module.modulePath;
if (path.isEmpty())
return;
ModuleItem *item = moduleFromPath(m_model->rootItem(), path);
if (item) {
item->module = module;
} else {
item = new ModuleItem;
item->module = module;
m_model->rootItem()->appendChild(item);
}
try { // MinGW occasionallly throws std::bad_alloc.
ElfReader reader(path);
item->module.elfData = reader.readHeaders();
item->update();
} catch(...) {
qWarning("%s: An exception occurred while reading module '%s'",
Q_FUNC_INFO, qPrintable(module.modulePath));
}
item->updated = true;
}
void ModulesHandler::beginUpdateAll()
{
TreeItem *root = m_model->rootItem();
for (int i = root->rowCount(); --i >= 0; )
static_cast<ModuleItem *>(root->child(i))->updated = false;
}
void ModulesHandler::endUpdateAll()
{
TreeItem *root = m_model->rootItem();
for (int i = root->rowCount(); --i >= 0; ) {
auto item = static_cast<ModuleItem *>(root->child(i));
if (!item->updated)
delete m_model->takeItem(item);
}
}
} // namespace Internal
} // namespace Debugger
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