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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/
#include "cdbmodules.h"
#include "moduleshandler.h"
#include "cdbdebugengine_p.h"
#include <QtCore/QFileInfo>
#include <QtCore/QRegExp>
namespace Debugger {
namespace Internal {
static inline bool getModuleCount(CIDebugSymbols *syms, ULONG *count, QString *errorMessage)
{
*count = 0;
ULONG loadedCount, unloadedCount;
const HRESULT hr = syms->GetNumberModules(&loadedCount, &unloadedCount);
if (FAILED(hr)) {
*errorMessage= msgComFailed("GetNumberModules", hr);
return false;
}
*count = loadedCount + unloadedCount;
return true;
}
bool getModuleNameList(CIDebugSymbols *syms, QStringList *modules, QString *errorMessage)
{
ULONG count;
modules->clear();
if (!getModuleCount(syms, &count, errorMessage))
return false;
WCHAR wszBuf[MAX_PATH];
for (ULONG m = 0; m < count; m++)
if (SUCCEEDED(syms->GetModuleNameStringWide(DEBUG_MODNAME_IMAGE, m, 0, wszBuf, MAX_PATH - 1, 0)))
modules->push_back(QString::fromUtf16(reinterpret_cast<const ushort *>(wszBuf)));
return true;
}
bool getModuleList(CIDebugSymbols *syms, QList<Module> *modules, QString *errorMessage)
{
ULONG count;
modules->clear();
if (!getModuleCount(syms, &count, errorMessage))
return false;
QVector<DEBUG_MODULE_PARAMETERS> parameters(count);
DEBUG_MODULE_PARAMETERS *parmPtr = &(*parameters.begin());
memset(parmPtr, 0, sizeof(DEBUG_MODULE_PARAMETERS) * count);
HRESULT hr = syms->GetModuleParameters(count, 0, 0u, parmPtr);
// E_INVALIDARG indicates 'Partial results' according to docu
if (FAILED(hr) && hr != E_INVALIDARG) {
*errorMessage= msgComFailed("GetModuleParameters", hr);
return false;
}
// fill array
const QString hexPrefix = QLatin1String("0x");
WCHAR wszBuf[MAX_PATH];
for (ULONG m = 0; m < count; m++) {
const DEBUG_MODULE_PARAMETERS &p = parameters.at(m);
if (p.Base != DEBUG_INVALID_OFFSET) { // Partial results?
Module module;
module.symbolsRead = (p.Flags & DEBUG_MODULE_USER_MODE)
&& (p.SymbolType != DEBUG_SYMTYPE_NONE);
module.startAddress = hexPrefix + QString::number(p.Base, 16);
module.endAddress = hexPrefix + QString::number((p.Base + p.Size), 16);
hr = syms->GetModuleNameStringWide(DEBUG_MODNAME_IMAGE, m, 0, wszBuf, MAX_PATH - 1, 0);
if (FAILED(hr) && hr != E_INVALIDARG) {
*errorMessage= msgComFailed("GetModuleNameStringWide", hr);
return false;
}
module.moduleName = QString::fromUtf16(reinterpret_cast<const ushort *>(wszBuf));
modules->push_back(module);
}
}
return true;
}
// Search symbols matching a pattern
bool searchSymbols(CIDebugSymbols *syms, const QString &pattern,
QStringList *matches, QString *errorMessage)
{
matches->clear();
ULONG64 handle = 0;
// E_NOINTERFACE means "no match". Apparently, it does not always
// set handle.
HRESULT hr = syms->StartSymbolMatchWide(reinterpret_cast<PCWSTR>(pattern.utf16()), &handle);
if (hr == E_NOINTERFACE) {
if (handle)
syms->EndSymbolMatch(handle);
return true;
}
if (FAILED(hr)) {
*errorMessage= msgComFailed("StartSymbolMatchWide", hr);
return false;
}
WCHAR wszBuf[MAX_PATH];
while (true) {
hr = syms->GetNextSymbolMatchWide(handle, wszBuf, MAX_PATH - 1, 0, 0);
if (hr == E_NOINTERFACE)
break;
if (hr == S_OK)
matches->push_back(QString::fromUtf16(reinterpret_cast<const ushort *>(wszBuf)));
}
syms->EndSymbolMatch(handle);
if (matches->empty())
*errorMessage = QString::fromLatin1("No symbol matches '%1'.").arg(pattern);
return true;
}
// Helper for the resolveSymbol overloads.
static ResolveSymbolResult resolveSymbol(CIDebugSymbols *syms, QString *symbol,
QStringList *matches,
QString *errorMessage)
{
errorMessage->clear();
// Is it an incomplete symbol?
if (symbol->contains(QLatin1Char('!')))
return ResolveSymbolOk;
// 'main' is a #define for gdb, but not for VS
if (*symbol == QLatin1String("qMain"))
*symbol = QLatin1String("main");
// resolve
if (!searchSymbols(syms, *symbol, matches, errorMessage))
return ResolveSymbolError;
if (matches->empty())
return ResolveSymbolNotFound;
*symbol = matches->front();
if (matches->size() > 1) {
*errorMessage = QString::fromLatin1("Ambiguous symbol '%1': %2").
arg(*symbol, matches->join(QString(QLatin1Char(' '))));
return ResolveSymbolAmbiguous;
}
return ResolveSymbolOk;
}
// Add missing the module specifier: "main" -> "project!main"
ResolveSymbolResult resolveSymbol(CIDebugSymbols *syms, QString *symbol,
QString *errorMessage)
{
QStringList matches;
return resolveSymbol(syms, symbol, &matches, errorMessage);
}
ResolveSymbolResult resolveSymbol(CIDebugSymbols *syms, const QString &pattern, QString *symbol, QString *errorMessage)
{
QStringList matches;
const ResolveSymbolResult r1 = resolveSymbol(syms, symbol, &matches, errorMessage);
switch (r1) {
case ResolveSymbolOk:
case ResolveSymbolNotFound:
case ResolveSymbolError:
return r1;
case ResolveSymbolAmbiguous:
break;
}
// Filter out
errorMessage->clear();
const QRegExp re(pattern);
if (!re.isValid()) {
*errorMessage = QString::fromLatin1("Internal error: Invalid pattern '%1'.").arg(pattern);
return ResolveSymbolError;
}
const QStringList filteredMatches = matches.filter(re);
if (filteredMatches.size() == 1) {
*symbol = filteredMatches.front();
return ResolveSymbolOk;
}
// something went wrong
const QString matchesString = matches.join(QString(QLatin1Char(',')));
if (filteredMatches.empty()) {
*errorMessage = QString::fromLatin1("None of symbols '%1' found for '%2' matches '%3'.").
arg(matchesString, *symbol, pattern);
return ResolveSymbolNotFound;
}
*errorMessage = QString::fromLatin1("Ambiguous match of symbols '%1' found for '%2' (%3)").
arg(matchesString, *symbol, pattern);
return ResolveSymbolAmbiguous;
}
// List symbols of a module
bool getModuleSymbols(CIDebugSymbols *syms, const QString &moduleName,
QList<Symbol> *symbols, QString *errorMessage)
{
// Search all symbols and retrieve addresses
symbols->clear();
QStringList matches;
const QString pattern = QFileInfo(moduleName).baseName() + QLatin1String("!*");
if (!searchSymbols(syms, pattern, &matches, errorMessage))
return false;
const QString hexPrefix = QLatin1String("0x");
foreach (const QString &name, matches) {
Symbol symbol;
symbol.name = name;
ULONG64 offset = 0;
if (SUCCEEDED(syms->GetOffsetByNameWide(reinterpret_cast<PCWSTR>(name.utf16()), &offset)))
symbol.address = hexPrefix + QString::number(offset, 16);
symbols->push_back(symbol);
}
return true;
}
} // namespace Internal
} // namespace Debugger
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