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|
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
// std::copy is perfectly fine, don't let MSVC complain about it being deprecated
#pragma warning (disable: 4996)
#ifndef NOMINMAX
# define NOMINMAX
#endif
#include "symbolgroupvalue.h"
#include "symbolgroup.h"
#include "stringutils.h"
#include "containers.h"
#include "extensioncontext.h"
#include <iomanip>
#include <algorithm>
#include <limits>
#include <ctype.h>
typedef std::vector<int>::size_type VectorIndexType;
/*! \struct SymbolGroupValueContext
\brief Structure to pass all IDebug interfaces required for SymbolGroupValue
\ingroup qtcreatorcdbext */
/*! \class SymbolGroupValue
Flyweight tied to a SymbolGroupNode
providing a convenient operator[] (name, index) and value
getters for notation of dumpers.
Inaccessible members return a SymbolGroupValue in state 'invalid'.
Example:
\code
SymbolGroupValue container(symbolGroupNode, symbolGroupValueContext);
if (SymbolGroupValue sizeV = container["d"]["size"])
int size = sizeV.intValue()
\endcode
etc. \ingroup qtcreatorcdbext */
unsigned SymbolGroupValue::verbose = 0;
SymbolGroupValue::SymbolGroupValue(const std::string &parentError) :
m_node(0), m_errorMessage(parentError)
{
if (m_errorMessage.empty())
m_errorMessage = "Invalid";
}
SymbolGroupValue::SymbolGroupValue(SymbolGroupNode *node,
const SymbolGroupValueContext &ctx) :
m_node(node), m_context(ctx)
{
if (m_node && !m_node->isMemoryAccessible()) { // Invalid if no value
m_node = 0;
if (SymbolGroupValue::verbose)
DebugPrint() << node->name() << '/' << node->iName() << '/'
<< node->type() << " memory access error";
}
}
SymbolGroupValue::SymbolGroupValue() :
m_node(0), m_errorMessage("Invalid")
{
}
bool SymbolGroupValue::isValid() const
{
return m_node != 0 && m_context.dataspaces != 0;
}
// Debug helper
static void formatNodeError(const AbstractSymbolGroupNode *n, std::ostream &os)
{
const AbstractSymbolGroupNode::AbstractSymbolGroupNodePtrVector &children = n->children();
const VectorIndexType size = children.size();
if (const SymbolGroupNode *sn = n->asSymbolGroupNode()) {
os << "type: " << sn->type() << ", raw value: \"" << wStringToString(sn->symbolGroupRawValue())
<< "\", 0x" << std::hex << sn->address() << ", " << std::dec;
}
if (size) {
os << "children (" << size << "): [";
for (VectorIndexType i = 0; i < size; ++i)
os << ' ' << children.at(i)->name();
os << ']';
} else {
os << "No children";
}
}
SymbolGroupValue SymbolGroupValue::operator[](unsigned index) const
{
if (ensureExpanded())
if (index < m_node->children().size())
if (SymbolGroupNode *n = m_node->childAt(index)->asSymbolGroupNode())
return SymbolGroupValue(n, m_context);
if (isValid() && SymbolGroupValue::verbose) {
DebugPrint dp;
dp << name() << "::operator[](#" << index << ") failed. ";
if (m_node)
formatNodeError(m_node, dp);
}
return SymbolGroupValue(m_errorMessage);
}
unsigned SymbolGroupValue::childCount() const
{
if (ensureExpanded())
return unsigned(m_node->children().size());
return 0;
}
SymbolGroupValue SymbolGroupValue::parent() const
{
if (isValid())
if (AbstractSymbolGroupNode *aParent = m_node->parent())
if (SymbolGroupNode *parent = aParent->asSymbolGroupNode())
return SymbolGroupValue(parent, m_context);
return SymbolGroupValue("parent() invoked on invalid value.");
}
bool SymbolGroupValue::ensureExpanded() const
{
if (!isValid() || !m_node->canExpand())
return false;
if (m_node->isExpanded())
return true;
// Set a flag indicating the node was expanded by SymbolGroupValue
// and not by an explicit request from the watch model.
if (m_node->expand(&m_errorMessage)) {
m_node->addFlags(SymbolGroupNode::ExpandedByDumper);
return true;
}
if (SymbolGroupValue::verbose)
DebugPrint() << "Expand failure of '" << name() << "': " << m_errorMessage;
return false;
}
SymbolGroupValue SymbolGroupValue::operator[](const char *name) const
{
if (ensureExpanded())
if (AbstractSymbolGroupNode *child = m_node->childByIName(name))
if (SymbolGroupNode *n = child->asSymbolGroupNode())
return SymbolGroupValue(n, m_context);
if (isValid() && SymbolGroupValue::verbose) { // Do not report subsequent errors
DebugPrint dp;
dp << this->name() << "::operator[](\"" << name << "\") failed. ";
if (m_node)
formatNodeError(m_node, dp);
}
return SymbolGroupValue(m_errorMessage);
}
std::string SymbolGroupValue::type() const
{
return isValid() ? m_node->type() : std::string();
}
std::string SymbolGroupValue::name() const
{
return isValid() ? m_node->name() : std::string();
}
unsigned SymbolGroupValue::size() const
{
return isValid() ? m_node->size() : 0;
}
std::wstring SymbolGroupValue::value() const
{
return isValid() ? m_node->symbolGroupFixedValue() : std::wstring();
}
double SymbolGroupValue::floatValue(double defaultValue) const
{
double f = defaultValue;
if (isValid()) {
std::wistringstream str(value());
str >> f;
if (str.fail())
f = defaultValue;
}
return f;
}
int SymbolGroupValue::intValue(int defaultValue) const
{
if (isValid()) {
int rc = 0;
// Is this an enumeration "EnumValue (0n12)", -> convert to integer
std::wstring v = value();
const std::wstring::size_type enPos = v.find(L"(0n");
if (enPos != std::wstring::npos && v.at(v.size() - 1) == L')')
v = v.substr(enPos + 3, v.size() - 4);
if (integerFromString(wStringToString(v), &rc))
return rc;
}
if (SymbolGroupValue::verbose)
DebugPrint() << name() << '/' << type() << '/'<< m_errorMessage << ": intValue() fails";
return defaultValue;
}
ULONG64 SymbolGroupValue::pointerValue(ULONG64 defaultValue) const
{
if (isValid()) {
ULONG64 rc = 0;
if (integerFromString(wStringToString(value()), &rc))
return rc;
}
if (SymbolGroupValue::verbose)
DebugPrint() << name() << '/'<< type() << '/' << m_errorMessage << ": pointerValue() fails";
return defaultValue;
}
// Read a POD value from debuggee memory and convert into host variable type POD.
// For unsigned integer types, it is possible to read a smaller debuggee-unsigned
// into a big ULONG64 on the host side (due to endianness).
template<class POD>
POD readPODFromMemory(CIDebugDataSpaces *ds, ULONG64 address, ULONG debuggeeTypeSize,
POD defaultValue, std::string *errorMessage /* = 0 */)
{
POD rc = defaultValue;
if (debuggeeTypeSize == 0 || debuggeeTypeSize > sizeof(POD)) // Safety check.
return rc;
if (const unsigned char *buffer = SymbolGroupValue::readMemory(ds, address, debuggeeTypeSize, errorMessage)) {
memcpy(&rc, buffer, debuggeeTypeSize);
delete [] buffer;
}
return rc;
}
ULONG64 SymbolGroupValue::readPointerValue(CIDebugDataSpaces *ds, ULONG64 address,
std::string *errorMessage /* = 0 */)
{
return readPODFromMemory<ULONG64>(ds, address, SymbolGroupValue::pointerSize(), 0, errorMessage);
}
ULONG64 SymbolGroupValue::readUnsignedValue(CIDebugDataSpaces *ds,
ULONG64 address, ULONG debuggeeTypeSize,
ULONG64 defaultValue,
std::string *errorMessage /* = 0 */)
{
return readPODFromMemory<ULONG64>(ds, address, debuggeeTypeSize, defaultValue, errorMessage);
}
// Note: sizeof(int) should always be 4 on Win32/Win64, no need to
// differentiate between host and debuggee int types. When implementing
// something like 'long', different size on host/debuggee must be taken
// into account (shifting signedness bits around).
int SymbolGroupValue::readIntValue(CIDebugDataSpaces *ds,
ULONG64 address, int defaultValue,
std::string *errorMessage /* = 0 */)
{
return readPODFromMemory<int>(ds, address, sizeof(int),
defaultValue, errorMessage);
}
double SymbolGroupValue::readDouble(CIDebugDataSpaces *ds, ULONG64 address, double defaultValue,
std::string *errorMessage /* = 0 */)
{
return readPODFromMemory<double>(ds, address, sizeof(double), defaultValue, errorMessage);
}
// Read memory and return allocated array
unsigned char *SymbolGroupValue::readMemory(CIDebugDataSpaces *ds, ULONG64 address, ULONG length,
std::string *errorMessage /* = 0 */)
{
unsigned char *buffer = new unsigned char[length];
std::fill(buffer, buffer + length, 0);
ULONG received = 0;
const HRESULT hr = ds->ReadVirtual(address, buffer, length, &received);
if (FAILED(hr)) {
delete [] buffer;
if (errorMessage) {
std::ostringstream estr;
estr << "Cannot read " << length << " bytes from 0x"
<< std::hex << address << ": "
<< msgDebugEngineComFailed("ReadVirtual", hr);
*errorMessage = estr.str();
}
return 0;
}
if (received < length && errorMessage) {
std::ostringstream estr;
estr << "Warning: Received only " << received
<< " bytes of " << length
<< " requested at 0x" << std::hex << address << '.';
*errorMessage = estr.str();
}
return buffer;
}
bool SymbolGroupValue::writeMemory(CIDebugDataSpaces *ds, ULONG64 address,
const unsigned char *data, ULONG length,
std::string *errorMessage /* =0 */)
{
ULONG filled = 0;
const HRESULT hr = ds->FillVirtual(address, length,
const_cast<unsigned char *>(data),
length, &filled);
if (FAILED(hr)) {
if (errorMessage) {
std::ostringstream estr;
estr << "Cannot write " << length << " bytes to 0x"
<< std::hex << address << ": "
<< msgDebugEngineComFailed("FillVirtual", hr);
*errorMessage = estr.str();
}
return false;
}
if (filled < length) {
if (errorMessage) {
std::ostringstream estr;
estr << "Filled only " << filled << " bytes of " << length
<< " at 0x" << std::hex << address << '.';
*errorMessage = estr.str();
}
return false;
}
return true;
}
// Return allocated array of data
unsigned char *SymbolGroupValue::pointerData(unsigned length) const
{
if (isValid())
if (const ULONG64 ptr = pointerValue())
return SymbolGroupValue::readMemory(m_context.dataspaces, ptr, length);
return 0;
}
ULONG64 SymbolGroupValue::address() const
{
if (isValid())
return m_node->address();
return 0;
}
std::string SymbolGroupValue::module() const
{
return isValid() ? m_node->module() : std::string();
}
// Temporary iname
static inline std::string additionalSymbolIname(const SymbolGroup *g)
{
std::ostringstream str;
str << "__additional" << g->root()->children().size();
return str.str();
}
SymbolGroupValue SymbolGroupValue::typeCast(const char *type) const
{
return typeCastedValue(address(), type);
}
SymbolGroupValue SymbolGroupValue::pointerTypeCast(const char *type) const
{
return typeCastedValue(pointerValue(), type);
}
SymbolGroupValue SymbolGroupValue::typeCastedValue(ULONG64 address, const char *type) const
{
if (!address)
return SymbolGroupValue();
const size_t len = strlen(type);
if (!len)
return SymbolGroupValue();
const bool nonPointer = type[len - 1] != '*';
SymbolGroup *sg = m_node->symbolGroup();
// A bit of magic: For desired pointer types, we can do
// 'Foo *' -> '(Foo *)(address)'.
// For non-pointers, we need to de-reference:
// 'Foo' -> '*(Foo *)(address)'
std::ostringstream str;
if (nonPointer)
str << '*';
str << '(' << type;
if (nonPointer)
str << " *";
str << ")(" << std::showbase << std::hex << address << ')';
if (SymbolGroupNode *node = sg->addSymbol(module(), str.str(),
additionalSymbolIname(sg),
&m_errorMessage))
return SymbolGroupValue(node, m_context);
return SymbolGroupValue();
}
SymbolGroupValue SymbolGroupValue::findMember(const SymbolGroupValue &start,
const std::string &symbolName)
{
const unsigned count = start.childCount();
for (unsigned i = 0; i < count ; ++i) { // check members
const SymbolGroupValue child = start[i];
if (child.name() == symbolName)
return child;
}
// Recurse down base classes at the beginning that have class names
// as value.
for (unsigned i = 0; i < count; ++i) {
const SymbolGroupValue child = start[i];
const std::wstring value = child.value();
if (value.compare(0, 6, L"class ") && value.compare(0, 7, L"struct ")) {
break;
} else {
if (SymbolGroupValue r = findMember(child, symbolName))
return r;
}
}
return SymbolGroupValue();
}
std::wstring SymbolGroupValue::wcharPointerData(unsigned charCount, unsigned maxCharCount) const
{
const bool truncated = charCount > maxCharCount;
if (truncated)
charCount = maxCharCount;
if (const unsigned char *ucData = pointerData(charCount * sizeof(wchar_t))) {
const wchar_t *utf16Data = reinterpret_cast<const wchar_t *>(ucData);
// Be smart about terminating 0-character
if (charCount && utf16Data[charCount - 1] == 0)
charCount--;
std::wstring rc = std::wstring(utf16Data, charCount);
if (truncated)
rc += L"...";
delete [] ucData;
return rc;
}
return std::wstring();
}
std::string SymbolGroupValue::error() const
{
return m_errorMessage;
}
// Return number of characters to strip for pointer type
unsigned SymbolGroupValue::isPointerType(const std::string &t)
{
if (endsWith(t, "**"))
return 1;
if (endsWith(t, " *"))
return 2;
return 0;
}
bool SymbolGroupValue::isArrayType(const std::string &t)
{
return endsWith(t, ']');
}
// Return number of characters to strip for pointer type
bool SymbolGroupValue::isVTableType(const std::string &t)
{
const char vtableTypeC[] = "__fptr()";
return t.compare(0, sizeof(vtableTypeC) - 1, vtableTypeC) == 0;
}
// add pointer type 'Foo' -> 'Foo *', 'Foo *' -> 'Foo **'
std::string SymbolGroupValue::pointerType(const std::string &type)
{
std::string rc = type;
if (!endsWith(type, '*'))
rc.push_back(' ');
rc.push_back('*');
return rc;
}
unsigned SymbolGroupValue::pointerSize()
{
static const unsigned ps = SymbolGroupValue::sizeOf("char *");
return ps;
}
unsigned SymbolGroupValue::intSize()
{
static const unsigned is = SymbolGroupValue::sizeOf("int");
return is;
}
unsigned SymbolGroupValue::pointerDiffSize()
{
static const unsigned is = SymbolGroupValue::sizeOf("ptrdiff_t");
return is;
}
unsigned SymbolGroupValue::sizeOf(const char *type)
{
const unsigned rc = GetTypeSize(type);
if (!rc && SymbolGroupValue::verbose)
DebugPrint() << "GetTypeSize fails for '" << type << '\'';
return rc;
}
unsigned SymbolGroupValue::fieldOffset(const char *type, const char *field)
{
ULONG rc = 0;
if (GetFieldOffset(type, field, &rc)) {
if (SymbolGroupValue::verbose)
DebugPrint() << "GetFieldOffset fails for '" << type << "' '" << field << '\'';
return 0;
}
return rc;
}
std::string SymbolGroupValue::stripPointerType(const std::string &t)
{
// 'Foo *' -> 'Foo', 'Bar **' -> 'Bar *'.
if (const unsigned stripLength = isPointerType(t))
return t.substr(0, t.size() - stripLength);
return t;
}
// Strip "class Foo", "struct Bar"-> "Foo", "Bar "
std::string SymbolGroupValue::stripClassPrefixes(const std::string &type)
{
std::string rc = type;
if (rc.compare(0, 6, "class ") == 0) {
rc.erase(0, 6);
} else {
if (rc.compare(0, 7, "struct ") == 0)
rc.erase(0, 7);
}
return rc;
}
// Strip " const" from end of type ("XX const", "XX const *[*]"
std::string SymbolGroupValue::stripConst(const std::string &type)
{
const std::string::size_type constPos = type.rfind(" const");
if (constPos == std::string::npos)
return type;
// Strip 'const' only if it is at the end 'QString const'
// or of some pointer like 'foo ***'
std::string rc = type;
const std::string::size_type size = rc.size();
std::string::size_type nextPos = constPos + 6;
if (nextPos == size) { // Ends with - easy.
rc.erase(constPos, nextPos - constPos);
return rc;
}
// Ensure it ends with ' ****'.
if (rc.at(nextPos) != ' ')
return rc;
for (std::string::size_type i = nextPos + 1; i < size; ++i)
if (rc.at(i) != '*')
return rc;
rc.erase(constPos, nextPos - constPos);
return rc;
}
std::string SymbolGroupValue::addPointerType(const std::string &t)
{
// 'char' -> 'char *' -> 'char **'
std::string rc = t;
if (!endsWith(rc, '*'))
rc.push_back(' ');
rc.push_back('*');
return rc;
}
std::string SymbolGroupValue::stripArrayType(const std::string &t)
{
const std::string::size_type bracket = t.rfind('[');
if (bracket != std::string::npos) {
std::string rc = t.substr(0, bracket);
trimBack(rc);
return rc;
}
return t;
}
std::string SymbolGroupValue::stripModuleFromType(const std::string &type)
{
const std::string::size_type exclPos = type.find('!');
return exclPos != std::string::npos ? type.substr(exclPos + 1, type.size() - exclPos - 1) : type;
}
std::string SymbolGroupValue::moduleOfType(const std::string &type)
{
const std::string::size_type exclPos = type.find('!');
return exclPos != std::string::npos ? type.substr(0, exclPos) : std::string();
}
// Symbol Name/(Expression) of a pointed-to instance ('Foo' at 0x10') ==> '*(Foo *)0x10'
std::string SymbolGroupValue::pointedToSymbolName(ULONG64 address, const std::string &type)
{
std::ostringstream str;
str << "*(" << type;
if (!endsWith(type, '*'))
str << ' ';
str << "*)" << std::showbase << std::hex << address;
return str.str();
}
/* QtInfo helper: Determine the full name of a Qt Symbol like 'qstrdup' in 'QtCored4'.
* as 'QtCored4![namespace::]qstrdup'. In the event someone really uses a different
* library prefix or namespaced Qt, this should be found.
* The crux is here that the underlying IDebugSymbols::StartSymbolMatch()
* does not accept module wildcards (as opposed to the 'x' command where
* 'x QtCo*!*qstrdup' would be acceptable and fast). OTOH, doing a wildcard search
* like '*qstrdup' is very slow and should be done only if there is really a
* different namespace or lib prefix.
* Parameter 'modulePatternC' is used to do a search on the modules returned
* (due to the amiguities and artifacts that appear like 'QGuid4!qstrdup'). */
static inline std::string resolveQtSymbol(const char *symbolC,
const char *moduleNameC,
const SymbolGroupValueContext &ctx)
{
enum { debugResolveQtSymbol = 0 };
typedef std::list<std::string> StringList;
typedef StringList::const_iterator StringListConstIt;
if (debugResolveQtSymbol)
DebugPrint() << ">resolveQtSymbol" << symbolC << " def=" << moduleNameC << " defModName="
<< moduleNameC;
const SubStringPredicate modulePattern(moduleNameC);
// First try a match with the default module name 'QtCored4!qstrdup' or
// 'Qt5Cored!qstrdup' for speed reasons.
for (int qtVersion = 4; qtVersion < 6; qtVersion++) {
std::ostringstream str;
str << "Qt";
if (qtVersion >= 5)
str << qtVersion;
str << moduleNameC << 'd';
if (qtVersion == 4)
str << qtVersion;
str << '!' << symbolC;
const std::string defaultPattern = str.str();
const StringList defaultMatches = SymbolGroupValue::resolveSymbolName(defaultPattern.c_str(), ctx);
if (debugResolveQtSymbol)
DebugPrint() << "resolveQtSymbol: defaultMatches=" << qtVersion
<< DebugSequence<StringListConstIt>(defaultMatches.begin(), defaultMatches.end());
const StringListConstIt defaultIt = std::find_if(defaultMatches.begin(), defaultMatches.end(), modulePattern);
if (defaultIt != defaultMatches.end()) {
if (debugResolveQtSymbol)
DebugPrint() << "<resolveQtSymbol return1 " << *defaultIt;
return *defaultIt;
}
}
// Fail, now try a search with '*qstrdup' in all modules. This might return several matches
// like 'QtCored4!qstrdup', 'QGuid4!qstrdup'
const std::string wildCardPattern = std::string(1, '*') + symbolC;
const StringList allMatches = SymbolGroupValue::resolveSymbolName(wildCardPattern.c_str(), ctx);
if (debugResolveQtSymbol)
DebugPrint() << "resolveQtSymbol: allMatches= (" << wildCardPattern << ") -> " << DebugSequence<StringListConstIt>(allMatches.begin(), allMatches.end());
const StringListConstIt allIt = std::find_if(allMatches.begin(), allMatches.end(), modulePattern);
const std::string rc = allIt != allMatches.end() ? *allIt : std::string();
if (debugResolveQtSymbol)
DebugPrint() << "<resolveQtSymbol return2 " << rc;
return rc;
}
/*! \struct QtInfo
Qt Information determined on demand: Namespace, modules and basic class
names containing the module for fast lookup.
\ingroup qtcreatorcdbext */
const QtInfo &QtInfo::get(const SymbolGroupValueContext &ctx)
{
static QtInfo rc;
if (!rc.libInfix.empty())
return rc;
do {
// Lookup qstrdup() to hopefully get module (potential libinfix) and namespace
// Typically, this resolves to 'QtGuid4!qstrdup' and 'QtCored4!qstrdup'...
const std::string qualifiedSymbol = resolveQtSymbol("qstrdup", "Core", ctx);
const std::string::size_type libPos = qualifiedSymbol.find("Core");
const std::string::size_type exclPos = qualifiedSymbol.find('!'); // Resolved: 'QtCored4!qstrdup'
if (libPos == std::string::npos || exclPos == std::string::npos) {
rc.libInfix = "d4";
rc.version = 4;
break;
}
rc.libInfix = qualifiedSymbol.substr(libPos + 4, exclPos - libPos - 4);
// 'Qt5Cored!qstrdup' or 'QtCored4!qstrdup'.
if (isdigit(qualifiedSymbol.at(2)))
rc.version = qualifiedSymbol.at(2) - '0';
else
rc.version = qualifiedSymbol.at(exclPos - 1) - '0';
// Any namespace? 'QtCored4!nsp::qstrdup'
const std::string::size_type nameSpaceStart = exclPos + 1;
const std::string::size_type colonPos = qualifiedSymbol.find(':', nameSpaceStart);
if (colonPos != std::string::npos)
rc.nameSpace = qualifiedSymbol.substr(nameSpaceStart, colonPos - nameSpaceStart);
} while (false);
rc.qObjectType = rc.prependQtCoreModule("QObject");
rc.qObjectPrivateType = rc.prependQtCoreModule("QObjectPrivate");
rc.qWindowPrivateType = rc.prependQtGuiModule("QWindowPrivate");
rc.qWidgetPrivateType =
rc.prependQtModule("QWidgetPrivate", rc.version >= 5 ? Widgets : Gui);
if (SymbolGroupValue::verbose)
DebugPrint() << rc;
return rc;
}
std::string QtInfo::moduleName(Module m) const
{
// Must match the enumeration
static const char* modNames[] =
{"Core", "Gui", "Widgets", "Network", "Script" };
std::ostringstream result;
result << "Qt";
if (version >= 5)
result << version;
result << modNames[m] << libInfix;
return result.str();
}
std::string QtInfo::prependModuleAndNameSpace(const std::string &type,
const std::string &module,
const std::string &aNameSpace)
{
// Strip the prefixes "class ", "struct ".
std::string rc = SymbolGroupValue::stripClassPrefixes(type);
// Is the namespace 'nsp::' missing?
if (!aNameSpace.empty()) {
const bool nameSpaceMissing = rc.size() <= aNameSpace.size()
|| rc.compare(0, aNameSpace.size(), aNameSpace) != 0
|| rc.at(aNameSpace.size()) != ':';
if (nameSpaceMissing) {
rc.insert(0, "::");
rc.insert(0, aNameSpace);
}
}
// Is the module 'Foo!' missing?
if (!module.empty()) {
const bool moduleMissing = rc.size() <= module.size()
|| rc.compare(0, module.size(), module) != 0
|| rc.at(module.size()) != '!';
if (moduleMissing) {
rc.insert(0, 1, '!');
rc.insert(0, module);
}
}
return rc;
}
std::ostream &operator<<(std::ostream &os, const QtInfo &i)
{
os << "Qt Info: Version: " << i.version << " Modules '"
<< i.moduleName(QtInfo::Core) << "', '" << i.moduleName(QtInfo::Gui)
<< "', Namespace='" << i.nameSpace
<< "', types: " << i.qObjectType << ','
<< i.qObjectPrivateType << ',' << i.qWidgetPrivateType;
return os;
}
std::list<std::string>
SymbolGroupValue::resolveSymbolName(const char *pattern,
const SymbolGroupValueContext &c,
std::string *errorMessage /* = 0 */)
{
// Extract the names
const SymbolList symbols = resolveSymbol(pattern, c, errorMessage);
std::list<std::string> rc;
if (!symbols.empty()) {
const SymbolList::const_iterator cend = symbols.end();
for (SymbolList::const_iterator it = symbols.begin(); it != cend; ++it)
rc.push_back(it->first);
}
return rc;
}
SymbolGroupValue::SymbolList
SymbolGroupValue::resolveSymbol(const char *pattern,
const SymbolGroupValueContext &c,
std::string *errorMessage /* = 0 */)
{
enum { bufSize = 2048 };
std::list<Symbol> rc;
if (errorMessage)
errorMessage->clear();
// Is it an incomplete symbol?
if (!pattern[0])
return rc;
ULONG64 handle = 0;
// E_NOINTERFACE means "no match". Apparently, it does not always
// set handle.
HRESULT hr = c.symbols->StartSymbolMatch(pattern, &handle);
if (hr == E_NOINTERFACE) {
if (handle)
c.symbols->EndSymbolMatch(handle);
return rc;
}
if (FAILED(hr)) {
if (errorMessage)
*errorMessage= msgDebugEngineComFailed("StartSymbolMatch", hr);
return rc;
}
char buf[bufSize];
ULONG64 offset;
while (true) {
hr = c.symbols->GetNextSymbolMatch(handle, buf, bufSize - 1, 0, &offset);
if (hr == E_NOINTERFACE)
break;
if (hr == S_OK)
rc.push_back(Symbol(std::string(buf), offset));
}
c.symbols->EndSymbolMatch(handle);
return rc;
}
// Resolve a type, that is, obtain its module name ('QString'->'QtCored4!QString')
std::string SymbolGroupValue::resolveType(const std::string &typeIn,
const SymbolGroupValueContext &ctx,
const std::string ¤tModule /* = "" */)
{
enum { BufSize = 512 };
if (typeIn.empty() || typeIn.find('!') != std::string::npos)
return typeIn;
const std::string stripped = SymbolGroupValue::stripClassPrefixes(typeIn);
// Use the module of the current symbol group for templates.
// This is because resolving some template types (std::list<> has been
// observed to result in 'QtGui4d!std::list', which subsequently fails.
if (!currentModule.empty() && stripped.find('<') != std::string::npos) {
std::string trc = currentModule;
trc.push_back('!');
trc += stripped;
return trc;
}
// Obtain the base address of the module using an obscure ioctl() call.
// See inline implementation of GetTypeSize() and docs.
SYM_DUMP_PARAM symParameters = { sizeof (SYM_DUMP_PARAM), (PUCHAR)stripped.c_str(), DBG_DUMP_NO_PRINT, 0,
NULL, NULL, NULL, 0, NULL };
const ULONG typeSize = Ioctl(IG_GET_TYPE_SIZE, &symParameters, symParameters.size);
if (!typeSize || !symParameters.ModBase) // Failed?
return stripped;
const std::string module = moduleNameByOffset(ctx.symbols, symParameters.ModBase);
if (module.empty())
return stripped;
std::string rc = module;
rc.push_back('!');
rc += stripped;
return rc;
}
// get the inner types: "QMap<int, double>" -> "int", "double"
std::vector<std::string> SymbolGroupValue::innerTypesOf(const std::string &t)
{
std::vector<std::string> rc;
std::string::size_type pos = t.find('<');
if (pos == std::string::npos)
return rc;
rc.reserve(5);
const std::string::size_type size = t.size();
// Record all elements of level 1 to work correctly for
// 'std::map<std::basic_string< .. > >'
unsigned level = 0;
std::string::size_type start = 0;
for ( ; pos < size ; pos++) {
const char c = t.at(pos);
switch (c) {
case '<':
if (++level == 1)
start = pos + 1;
break;
case '>':
if (--level == 0) { // last element
std::string innerType = t.substr(start, pos - start);
trimFront(innerType);
trimBack(innerType);
rc.push_back(innerType);
return rc;
}
break;
case ',':
if (level == 1) { // std::map<a, b>: start anew at ','.
std::string innerType = t.substr(start, pos - start);
trimFront(innerType);
trimBack(innerType);
rc.push_back(innerType);
start = pos + 1;
}
break;
}
}
return rc;
}
std::ostream &operator<<(std::ostream &str, const SymbolGroupValue &v)
{
if (v) {
str << '\'' << v.name() << "' 0x" << std::hex << v.address() <<
std::dec << ' ' << v.type() << ": '" << wStringToString(v.value()) << '\'';
} else {
str << "Invalid value '" << v.error() << '\'';
}
return str;
}
// -------------------- Simple dumping helpers
// Courtesy of qdatetime.cpp
static inline void getDateFromJulianDay(unsigned julianDay, int *year, int *month, int *day)
{
int y, m, d;
if (julianDay >= 2299161) {
typedef unsigned long long qulonglong;
// Gregorian calendar starting from October 15, 1582
// This algorithm is from Henry F. Fliegel and Thomas C. Van Flandern
qulonglong ell, n, i, j;
ell = qulonglong(julianDay) + 68569;
n = (4 * ell) / 146097;
ell = ell - (146097 * n + 3) / 4;
i = (4000 * (ell + 1)) / 1461001;
ell = ell - (1461 * i) / 4 + 31;
j = (80 * ell) / 2447;
d = int(ell - (2447 * j) / 80);
ell = j / 11;
m = int(j + 2 - (12 * ell));
y = int(100 * (n - 49) + i + ell);
} else {
// Julian calendar until October 4, 1582
// Algorithm from Frequently Asked Questions about Calendars by Claus Toendering
julianDay += 32082;
int dd = (4 * julianDay + 3) / 1461;
int ee = julianDay - (1461 * dd) / 4;
int mm = ((5 * ee) + 2) / 153;
d = ee - (153 * mm + 2) / 5 + 1;
m = mm + 3 - 12 * (mm / 10);
y = dd - 4800 + (mm / 10);
if (y <= 0)
--y;
}
if (year)
*year = y;
if (month)
*month = m;
if (day)
*day = d;
}
const char *stdStringTypeC = "std::basic_string<char,std::char_traits<char>,std::allocator<char> >";
const char *stdWStringTypeC = "std::basic_string<unsigned short,std::char_traits<unsigned short>,std::allocator<unsigned short> >";
// Compiler option: -Zc:wchar_t-:
const char *stdWStringWCharTypeC = "std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >";
static KnownType knownPODTypeHelper(const std::string &type, std::string::size_type endPos)
{
if (type.empty() || !endPos)
return KT_Unknown;
// Strip pointer types.
const bool isPointer = type.at(endPos - 1) == '*';
if (isPointer) {
endPos--;
if (endPos > 0 && type.at(endPos - 1) == ' ')
endPos--;
}
switch (type.at(0)) {
case 'c':
if (endPos == 4 && !type.compare(0, endPos, "char"))
return isPointer ? KT_POD_PointerType : KT_Char;
break;
case 'd':
if (endPos == 6 && !type.compare(0, endPos, "double"))
return isPointer ? KT_POD_PointerType : KT_FloatType;
break;
case 'f':
if (endPos == 5 && !type.compare(0, endPos, "float"))
return isPointer ? KT_POD_PointerType : KT_FloatType;
break;
case 'l':
if (endPos >= 4 && !type.compare(0, 4, "long"))
if (endPos == 4 || type.at(4) == ' ')
return isPointer ? KT_POD_PointerType : KT_IntType;
break;
case 'i':
// 'int' 'int64'
if (endPos >= 3 && !type.compare(0, 3, "int"))
if (endPos == 3 || type.at(3) == ' ' || type.at(3) == '6')
return isPointer ? KT_POD_PointerType : KT_IntType;
break;
case 's':
if (endPos == 5 && !type.compare(0, 5, "short"))
return isPointer ? KT_POD_PointerType : KT_IntType;
if (endPos >= 6 && !type.compare(0, 6, "signed"))
if (endPos == 6 || type.at(6) == ' ')
return isPointer ? KT_POD_PointerType : KT_IntType;
break;
case 'u':
if (endPos >= 8 && !type.compare(0, 8, "unsigned")) {
if (endPos == 8 || type.at(8) == ' ') {
if (isPointer)
return KT_POD_PointerType;
return type.compare(0, 13, "unsigned char") ?
KT_UnsignedIntType :
KT_UnsignedChar;
}
}
break;
}
return isPointer ? KT_PointerType : KT_Unknown;
}
// Determine type starting from a position (with/without 'class '/'struct ' prefix).
static KnownType knownClassTypeHelper(const std::string &type,
std::string::size_type pos,
std::string::size_type endPos)
{
// STL ?
const std::wstring::size_type templatePos = type.find('<', pos);
static const std::wstring::size_type stlClassLen = 5;
if (!type.compare(pos, stlClassLen, "std::")) {
// STL containers
const std::wstring::size_type hPos = pos + stlClassLen;
if (templatePos != std::string::npos) {
switch (templatePos - stlClassLen - pos) {
case 3:
if (!type.compare(hPos, 3, "set"))
return KT_StdSet;
if (!type.compare(hPos, 3, "map"))
return KT_StdMap;
break;
case 4:
if (!type.compare(hPos, 4, "list"))
return KT_StdList;
break;
case 5:
if (!type.compare(hPos, 5, "stack"))
return KT_StdStack;
if (!type.compare(hPos, 5, "deque"))
return KT_StdDeque;
break;
case 6:
if (!type.compare(hPos, 6, "vector"))
return KT_StdVector;
break;
case 8:
if (!type.compare(hPos, 8, "multimap"))
return KT_StdMultiMap;
break;
}
}
// STL strings
if (!type.compare(pos, endPos - pos, stdStringTypeC))
return KT_StdString;
if (!type.compare(pos, endPos - pos, stdWStringTypeC)
|| !type.compare(pos, endPos - pos, stdWStringWCharTypeC))
return KT_StdWString;
return KT_Unknown;
} // std::sth
// Check for a 'Q' past the last namespace (beware of namespaced Qt:
// 'nsp::QString').
const std::wstring::size_type lastNameSpacePos = type.rfind(':', templatePos);
const std::wstring::size_type qPos =
lastNameSpacePos == std::string::npos ? type.find('Q', pos) : lastNameSpacePos + 1;
if (qPos == std::string::npos || qPos >= type.size() || type.at(qPos) != 'Q')
return KT_Unknown;
// Qt types (templates)
if (templatePos != std::string::npos) {
// Do not fall for QMap<K,T>::iterator, which is actually an inner class.
if (endPos > templatePos && type.at(endPos - 1) != '>')
return KT_Unknown;
switch (templatePos - qPos) {
case 4:
if (!type.compare(qPos, 4, "QSet"))
return KT_QSet;
if (!type.compare(qPos, 4, "QMap"))
return KT_QMap;
break;
case 5:
if (!type.compare(qPos, 5, "QHash"))
return KT_QHash;
if (!type.compare(qPos, 5, "QList"))
return KT_QList;
break;
case 6:
if (!type.compare(qPos, 6, "QFlags"))
return KT_QFlags;
if (!type.compare(qPos, 6, "QStack"))
return KT_QStack;
if (!type.compare(qPos, 6, "QQueue"))
return KT_QQueue;
break;
case 7:
if (!type.compare(qPos, 7, "QVector"))
return KT_QVector;
break;
case 9:
if (!type.compare(qPos, 9, "QMultiMap"))
return KT_QMultiMap;
break;
case 10:
if (!type.compare(qPos, 10, "QMultiHash"))
return KT_QMultiHash;
break;
case 11:
if (!type.compare(qPos, 11, "QLinkedList"))
return KT_QLinkedList;
break;
case 14:
if (!type.compare(qPos, 14, "QSharedPointer"))
return KT_QSharedPointer;
break;
}
}
// Remaining non-template types
switch (endPos - qPos) {
case 4:
if (!type.compare(qPos, 4, "QPen"))
return KT_QPen;
if (!type.compare(qPos, 4, "QUrl"))
return KT_QUrl;
if (!type.compare(qPos, 4, "QDir"))
return KT_QDir;
break;
case 5:
if (!type.compare(qPos, 5, "QChar"))
return KT_QChar;
if (!type.compare(qPos, 5, "QDate"))
return KT_QDate;
if (!type.compare(qPos, 5, "QTime"))
return KT_QTime;
if (!type.compare(qPos, 5, "QSize"))
return KT_QSize;
if (!type.compare(qPos, 5, "QLine"))
return KT_QLine;
if (!type.compare(qPos, 5, "QRect"))
return KT_QRect;
if (!type.compare(qPos, 5, "QIcon"))
return KT_QIcon;
if (!type.compare(qPos, 5, "QFile"))
return KT_QFile;
break;
case 6:
if (!type.compare(qPos, 6, "QColor"))
return KT_QColor;
if (!type.compare(qPos, 6, "QSizeF"))
return KT_QSizeF;
if (!type.compare(qPos, 6, "QPoint"))
return KT_QPoint;
if (!type.compare(qPos, 6, "QLineF"))
return KT_QLineF;
if (!type.compare(qPos, 6, "QRectF"))
return KT_QRectF;
if (!type.compare(qPos, 6, "QBrush"))
return KT_QBrush;
if (!type.compare(qPos, 6, "QImage"))
return KT_QImage;
if (!type.compare(qPos, 6, "QFixed"))
return KT_QFixed;
break;
case 7:
if (!type.compare(qPos, 7, "QString"))
return KT_QString;
if (!type.compare(qPos, 7, "QPointF"))
return KT_QPointF;
if (!type.compare(qPos, 7, "QObject"))
return KT_QObject;
if (!type.compare(qPos, 7, "QWidget"))
return KT_QWidget;
if (!type.compare(qPos, 7, "QWindow"))
return KT_QWindow;
if (!type.compare(qPos, 7, "QLocale"))
return KT_QLocale;
if (!type.compare(qPos, 7, "QMatrix"))
return KT_QMatrix;
if (!type.compare(qPos, 7, "QRegExp"))
return KT_QRegExp;
if (!type.compare(qPos, 7, "QPixmap"))
return KT_QPixmap;
break;
case 8:
if (!type.compare(qPos, 8, "QVariant"))
return KT_QVariant;
if (!type.compare(qPos, 8, "QMargins"))
return KT_QMargins;
if (!type.compare(qPos, 8, "QXmlItem"))
return KT_QXmltem;
if (!type.compare(qPos, 8, "QXmlName"))
return KT_QXmlName;
if (!type.compare(qPos, 8, "QProcess"))
return KT_QProcess;
break;
case 9:
if (!type.compare(qPos, 9, "QBitArray"))
return KT_QBitArray;
if (!type.compare(qPos, 9, "QDateTime"))
return KT_QDateTime;
if (!type.compare(qPos, 9, "QFileInfo"))
return KT_QFileInfo;
if (!type.compare(qPos, 9, "QMetaEnum"))
return KT_QMetaEnum;
if (!type.compare(qPos, 9, "QTextItem"))
return KT_QTextItem;
if (!type.compare(qPos, 9, "QVector2D"))
return KT_QVector2D;
if (!type.compare(qPos, 9, "QVector3D"))
return KT_QVector3D;
if (!type.compare(qPos, 9, "QVector4D"))
return KT_QVector4D;
break;
case 10:
if (!type.compare(qPos, 10, "QAtomicInt"))
return KT_QAtomicInt;
if (!type.compare(qPos, 10, "QByteArray"))
return KT_QByteArray;
if (!type.compare(qPos, 10, "QMatrix4x4"))
return KT_QMatrix4x4;
if (!type.compare(qPos, 10, "QTextBlock"))
return KT_QTextBlock;
if (!type.compare(qPos, 10, "QTransform"))
return KT_QTransform;
if (!type.compare(qPos, 10, "QFixedSize"))
return KT_QFixedSize;
if (!type.compare(qPos, 10, "QStringRef"))
return KT_QStringRef;
break;
case 11:
if (!type.compare(qPos, 11, "QStringList"))
return KT_QStringList;
if (!type.compare(qPos, 11, "QBasicTimer"))
return KT_QBasicTimer;
if (!type.compare(qPos, 11, "QMetaMethod"))
return KT_QMetaMethod;
if (!type.compare(qPos, 11, "QModelIndex"))
return KT_QModelIndex;
if (!type.compare(qPos, 11, "QQuaternion"))
return KT_QQuaternion;
if (!type.compare(qPos, 11, "QScriptItem"))
return KT_QScriptItem;
if (!type.compare(qPos, 11, "QFixedPoint"))
return KT_QFixedPoint;
if (!type.compare(qPos, 11, "QScriptLine"))
return KT_QScriptLine;
break;
case 12:
if (!type.compare(qPos, 12, "QKeySequence"))
return KT_QKeySequence;
if (!type.compare(qPos, 12, "QHostAddress"))
return KT_QHostAddress;
if (!type.compare(qPos, 12, "QScriptValue"))
return KT_QScriptValue;
break;
case 13:
if (!type.compare(qPos, 13, "QTextFragment"))
return KT_QTextFragment;
if (!type.compare(qPos, 13, "QTreeViewItem"))
return KT_QTreeViewItem;
break;
case 14:
if (!type.compare(qPos, 14, "QMetaClassInfo"))
return KT_QMetaClassInfo;
if (!type.compare(qPos, 14, "QNetworkCookie"))
return KT_QNetworkCookie;
break;
case 15:
if (!type.compare(qPos, 15, "QBasicAtomicInt"))
return KT_QBasicAtomicInt;
if (!type.compare(qPos, 15, "QHashDummyValue"))
return KT_QHashDummyValue;
if (!type.compare(qPos, 15, "QSourceLocation"))
return KT_QSourceLocation;
if (!type.compare(qPos, 15, "QScriptAnalysis"))
return KT_QScriptAnalysis;
break;
case 16:
if (!type.compare(qPos, 16, "QTextUndoCommand"))
return KT_QTextUndoCommand;
break;
case 18:
if (!type.compare(qPos, 18, "QNetworkProxyQuery"))
return KT_QNetworkProxyQuery;
if (!type.compare(qPos, 18, "QXmlNodeModelIndex"))
return KT_QXmlNodeModelIndex;
break;
case 19:
if (!type.compare(qPos, 19, "QItemSelectionRange"))
return KT_QItemSelectionRange;
if (!type.compare(qPos, 19, "QPaintBufferCommand"))
return KT_QPaintBufferCommand;
if (!type.compare(qPos, 19, "QTextHtmlParserNode"))
return KT_QTextHtmlParserNode;
if (!type.compare(qPos, 19, "QXmlStreamAttribute"))
return KT_QXmlStreamAttribute;
if (!type.compare(qPos, 19, "QGlyphJustification"))
return KT_QGlyphJustification;
break;
case 20:
if (!type.compare(qPos, 20, "QTextBlock::iterator"))
return KT_QTextBlock_iterator;
if (!type.compare(qPos, 20, "QTextFrame::iterator"))
return KT_QTextFrame_iterator;
break;
case 21:
if (!type.compare(qPos, 21, "QPersistentModelIndex"))
return KT_QPersistentModelIndex;
if (!type.compare(qPos, 21, "QPainterPath::Element"))
return KT_QPainterPath_Element;
break;
case 22:
if (!type.compare(qPos, 22, "QObjectPrivate::Sender"))
return KT_QObjectPrivate_Sender;
break;
case 24:
if (!type.compare(qPos, 24, "QPatternist::AtomicValue"))
return KT_QPatternist_AtomicValue;
if (!type.compare(qPos, 24, "QPatternist::Cardinality"))
return KT_QPatternist_Cardinality;
break;
case 26:
if (!type.compare(qPos, 26, "QObjectPrivate::Connection"))
return KT_QObjectPrivate_Connection;
if (!type.compare(qPos, 26, "QPatternist::ItemCacheCell"))
return KT_QPatternist_ItemCacheCell;
if (!type.compare(qPos, 26, "QPatternist::ItemType::Ptr"))
return KT_QPatternist_ItemType_Ptr;
if (!type.compare(qPos, 26, "QPatternist::NamePool::Ptr"))
return KT_QPatternist_NamePool_Ptr;
break;
case 27:
if (!type.compare(qPos, 27, "QXmlStreamEntityDeclaration"))
return KT_QXmlStreamEntityDeclaration;
break;
case 28:
if (!type.compare(qPos, 28, "QPatternist::Expression::Ptr"))
return KT_QPatternist_Expression_Ptr;
break;
case 29:
if (!type.compare(qPos, 29, "QXmlStreamNotationDeclaration"))
return KT_QXmlStreamNotationDeclaration;
case 30:
if (!type.compare(qPos, 30, "QPatternist::SequenceType::Ptr"))
return KT_QPatternist_SequenceType_Ptr;
if (!type.compare(qPos, 30, "QXmlStreamNamespaceDeclaration"))
return KT_QXmlStreamNamespaceDeclaration;
break;
case 32:
break;
if (!type.compare(qPos, 32, "QPatternist::Item::Iterator::Ptr"))
return KT_QPatternist_Item_Iterator_Ptr;
case 34:
break;
if (!type.compare(qPos, 34, "QPatternist::ItemSequenceCacheCell"))
return KT_QPatternist_ItemSequenceCacheCell;
case 37:
break;
if (!type.compare(qPos, 37, "QNetworkHeadersPrivate::RawHeaderPair"))
return KT_QNetworkHeadersPrivate_RawHeaderPair;
if (!type.compare(qPos, 37, "QPatternist::AccelTree::BasicNodeData"))
return KT_QPatternist_AccelTree_BasicNodeData;
break;
}
return KT_Unknown;
}
KnownType knownType(const std::string &type, unsigned flags)
{
if (type.empty())
return KT_Unknown;
// Autostrip one pointer if desired
const std::string::size_type endPos = (flags & KnownTypeAutoStripPointer) ?
type.size() - SymbolGroupValue::isPointerType(type) :
type.size();
// PODs first
const KnownType podType = knownPODTypeHelper(type, endPos);
if (podType != KT_Unknown)
return podType;
if (flags & KnownTypeHasClassPrefix) {
switch (type.at(0)) { // Check 'class X' or 'struct X'
case 'c':
if (!type.compare(0, 6, "class "))
return knownClassTypeHelper(type, 6, endPos);
break;
case 's':
if (!type.compare(0, 7, "struct "))
return knownClassTypeHelper(type, 7, endPos);
break;
}
} else {
// No prefix, full check
return knownClassTypeHelper(type, 0, endPos);
}
return KT_Unknown;
}
void formatKnownTypeFlags(std::ostream &os, KnownType kt)
{
switch (kt) {
case KT_Unknown:
os << "<unknown>";
return;
case KT_POD_PointerType:
os << " pod_pointer";
break;
case KT_PointerType:
os << " pointer";
break;
default:
break;
}
if (kt & KT_POD_Type)
os << " pod";
if (kt & KT_Qt_Type)
os << " qt";
if (kt & KT_Qt_PrimitiveType)
os << " qt_primitive";
if (kt & KT_Qt_MovableType)
os << " qt_movable";
if (kt & KT_ContainerType)
os << " container";
if (kt & KT_STL_Type)
os << " stl";
if (kt & KT_HasSimpleDumper)
os << " simple_dumper";
}
static inline DumpParameterRecodeResult
checkCharArrayRecode(const SymbolGroupValue &v)
{
return DumpParameters::checkRecode(v.type(), std::string(),
v.value(), v.context(), v.address());
}
// Helper struct containing data Address and size/alloc information
// from Qt's QString/QByteArray.
struct QtStringAddressData
{
QtStringAddressData() : address(0), size(0), allocated(0) {}
ULONG64 address;
unsigned size; // Size and allocated are in ushort for QString's.
unsigned allocated;
};
/* Helper to determine the location and size of the data of
* QStrings/QByteArrays for versions 4,5. In Qt 4, 'd' has a 'data'
* pointer. In Qt 5, the d-elements and the data are in a storage pool
* and the data are at an offset behind the d-structures (QString,
* QByteArray, QVector). */
QtStringAddressData readQtStringAddressData(const SymbolGroupValue &dV,
int qtMajorVersion)
{
QtStringAddressData result;
const SymbolGroupValue sizeV = dV["size"];
const SymbolGroupValue allocV = dV["alloc"];
if (!sizeV || !allocV)
return QtStringAddressData();
result.size = sizeV.intValue();
result.allocated = allocV.intValue();
if (qtMajorVersion < 5) {
// Qt 4: Simple 'data' pointer.
result.address = dV["data"].pointerValue();
} else {
// Qt 5: Memory pool after the data element.
const SymbolGroupValue offsetV = dV["offset"];
if (!offsetV)
return QtStringAddressData();
// Take the address for QTypeArrayData of QByteArray, else
// pointer value of D-pointer.
const ULONG64 baseAddress = SymbolGroupValue::isPointerType(dV.type()) ?
dV.pointerValue() : dV.address();
result.address = baseAddress + offsetV.intValue();
}
return result;
}
// Retrieve data from a QByteArrayData(char)/QStringData(wchar_t)
// in desired type. For empty arrays, no data are allocated.
// All sizes are in CharType units. zeroTerminated means data are 0-terminated
// in the data type, but "size" does not contain it.
template <typename CharType>
bool readQt5StringData(const SymbolGroupValue &dV, int qtMajorVersion,
bool zeroTerminated, unsigned position, unsigned sizeLimit,
unsigned *fullSize, unsigned *arraySize,
CharType **array)
{
*array = 0;
const QtStringAddressData data = readQtStringAddressData(dV, qtMajorVersion);
if (!data.address || position > data.size)
return false;
const ULONG64 address = data.address + sizeof(CharType) * position;
*fullSize = data.size - position;
*arraySize = std::min(*fullSize, sizeLimit);
if (!*fullSize)
return true;
const unsigned memorySize =
sizeof(CharType) * (*arraySize + (zeroTerminated ? 1 : 0));
unsigned char *memory =
SymbolGroupValue::readMemory(dV.context().dataspaces,
address, memorySize);
if (!memory)
return false;
*array = reinterpret_cast<CharType *>(memory);
if ((*arraySize < *fullSize) && zeroTerminated)
*(*array + *arraySize) = CharType(0);
return true;
}
static inline bool dumpQString(const SymbolGroupValue &v, std::wostream &str,
MemoryHandle **memoryHandle = 0,
unsigned position = 0,
unsigned length = std::numeric_limits<unsigned>::max())
{
const QtInfo &qtInfo = QtInfo::get(v.context());
const SymbolGroupValue dV = v["d"];
if (!dV)
return false;
// Qt 4.
if (qtInfo.version < 5) {
if (const SymbolGroupValue sizeValue = dV["size"]) {
const int size = sizeValue.intValue();
if (size >= 0) {
std::wstring stringData = dV["data"].wcharPointerData(size);
if (position && position < stringData.size())
stringData.erase(0, position);
if (length < stringData.size())
stringData.erase(length, stringData.size() - length);
str << L'"' << stringData << L'"';
if (memoryHandle)
*memoryHandle = MemoryHandle::fromStdWString(stringData);
return true;
}
}
return false;
} // Qt 4.
wchar_t *memory;
unsigned fullSize;
unsigned size;
const SymbolGroupValue typeArrayV = dV[unsigned(0)];
if (!typeArrayV)
return false;
if (!readQt5StringData(typeArrayV, qtInfo.version, true, position,
std::min(length, ExtensionContext::instance().parameters().maxStringLength),
&fullSize, &size, &memory))
return false;
if (size) {
str << L'"' << memory;
if (std::min(fullSize, length) > size)
str << L"...";
str << L'"';
} else {
str << L"\"\"";
}
if (memoryHandle)
*memoryHandle = new MemoryHandle(memory, size);
else
delete [] memory;
return true;
}
static inline bool dumpQStringRef(const SymbolGroupValue &v, std::wostream &str,
MemoryHandle **memoryHandle = 0)
{
const int position = v["m_position"].intValue();
const int size = v["m_size"].intValue();
if (position < 0 || size < 0)
return false;
const SymbolGroupValue string = v["m_string"];
if (!string || !dumpQString(string, str, memoryHandle, position, size))
return false;
str << L" (" << position << ',' << size << L')';
return true;
}
/* Pad a memory offset to align with pointer size */
static inline unsigned padOffset(unsigned offset)
{
const unsigned ps = SymbolGroupValue::pointerSize();
return (offset % ps) ? (1 + offset / ps) * ps : offset;
}
/* Return the offset to be accounted for "QSharedData" to access
* the first member of a QSharedData-derived class */
static unsigned qSharedDataSize(const SymbolGroupValueContext &ctx)
{
unsigned offset = 0;
if (!offset) {
// As of 4.X, a QAtomicInt, which will be padded to 8 on a 64bit system.
const std::string qSharedData = QtInfo::get(ctx).prependQtCoreModule("QSharedData");
offset = SymbolGroupValue::sizeOf(qSharedData.c_str());
}
return offset;
}
/* Return the size of a QString */
static unsigned qStringSize(const SymbolGroupValueContext &ctx)
{
static const unsigned size = SymbolGroupValue::sizeOf(QtInfo::get(ctx).prependQtCoreModule("QString").c_str());
return size;
}
/* Return the size of a QList via QStringList. */
static unsigned qListSize(const SymbolGroupValueContext &ctx)
{
static const unsigned size = SymbolGroupValue::sizeOf(QtInfo::get(ctx).prependQtCoreModule("QStringList").c_str());
return size;
}
/* Return the size of a QByteArray */
static unsigned qByteArraySize(const SymbolGroupValueContext &ctx)
{
static const unsigned size = SymbolGroupValue::sizeOf(QtInfo::get(ctx).prependQtCoreModule("QByteArray").c_str());
return size;
}
/* Return the size of a QAtomicInt */
static unsigned qAtomicIntSize(const SymbolGroupValueContext &ctx)
{
static const unsigned size = SymbolGroupValue::sizeOf(QtInfo::get(ctx).prependQtCoreModule("QAtomicInt").c_str());
return size;
}
// Dump a QByteArray
static inline bool dumpQByteArray(const SymbolGroupValue &v, std::wostream &str,
MemoryHandle **memoryHandle = 0)
{
const QtInfo &qtInfo = QtInfo::get(v.context());
const SymbolGroupValue dV = v["d"];
if (!dV)
return false;
// Qt 4.
if (qtInfo.version < 5) {
if (const SymbolGroupValue data = dV["data"]) {
const DumpParameterRecodeResult check =
checkCharArrayRecode(data);
if (check.buffer) {
str << quotedWStringFromCharData(check.buffer, check.size);
delete [] check.buffer;
} else {
str << data.value();
}
return true;
}
return false;
}
// Qt 5: Data start at offset past the 'd' of type QByteArrayData.
char *memory;
unsigned fullSize;
unsigned size;
const SymbolGroupValue typeArrayV = dV[unsigned(0)];
if (!typeArrayV)
return false;
if (!readQt5StringData(typeArrayV, qtInfo.version, false, 0, 10240, &fullSize, &size, &memory))
return false;
if (size) {
// Emulate CDB's behavior of replacing unprintable characters
// by dots.
std::wstring display;
display.reserve(size);
char *memEnd = memory + size;
for (char *p = memory; p < memEnd; p++) {
const char c = *p;
display.push_back(c >= 0 && isprint(c) ? wchar_t(c) : L'.');
}
str << "\"" << display;
if (fullSize > size)
str << L"...";
str << L'"';
} else {
str << L"\"\"";
}
if (memoryHandle)
*memoryHandle = new MemoryHandle(reinterpret_cast<unsigned char *>(memory), size);
else
delete [] memory;
return true;
}
/* Below are some helpers for simple dumpers for some Qt classes accessing their
* private classes without the debugger's symbolic information (applicable to non-exported
* private classes such as QFileInfoPrivate, etc). This is done by dereferencing the
* d-ptr and obtaining the address of the variable (considering some offsets depending on type)
* and adding a symbol for that QString or QByteArray (basically using raw memory).
*/
enum QPrivateDumpMode // Enumeration determining the offsets to be taken into consideration
{
QPDM_None,
QPDM_qVirtual, // For classes with virtual functions (QObject-based): Skip vtable for d-address
QPDM_qSharedData, // Private class is based on QSharedData, non-padded type
QPDM_qSharedDataPadded // Private class is based on QSharedData, padded type (class)
};
// Determine the address of private class member by dereferencing the d-ptr and using offsets.
static ULONG64 addressOfQPrivateMember(const SymbolGroupValue &v, QPrivateDumpMode mode,
unsigned additionalOffset = 0)
{
std::string errorMessage;
// Dererence d-Ptr (Pointer/Value duality: Value or object address).
ULONG64 dAddress = SymbolGroupValue::isPointerType(v.type()) ? v.pointerValue() : v.address();
if (!dAddress)
return 0;
if (mode == QPDM_qVirtual) // Skip vtable.
dAddress += SymbolGroupValue::pointerSize();
const ULONG64 dptr = SymbolGroupValue::readPointerValue(v.context().dataspaces,
dAddress, &errorMessage);
if (!dptr)
return 0;
// Get address of type to be dumped.
ULONG64 dumpAddress = dptr + additionalOffset;
if (mode == QPDM_qSharedData) { // Simple type following QSharedData
dumpAddress += qSharedDataSize(v.context());
} else if (mode == QPDM_qSharedDataPadded) {
dumpAddress += padOffset(qSharedDataSize(v.context()));
}
return dumpAddress;
}
// Convenience to dump a QString from the unexported private class of a Qt class.
static bool dumpQStringFromQPrivateClass(const SymbolGroupValue &v,
QPrivateDumpMode mode,
unsigned additionalOffset,
std::wostream &str)
{
std::string errorMessage;
const ULONG64 stringAddress = addressOfQPrivateMember(v, mode, additionalOffset);
if (!stringAddress)
return false;
std::string dumpType = QtInfo::get(v.context()).prependQtCoreModule("QString");
std::string symbolName = SymbolGroupValue::pointedToSymbolName(stringAddress , dumpType);
if (SymbolGroupValue::verbose > 1)
DebugPrint() << "dumpQStringFromQPrivateClass of " << v.name() << '/'
<< v.type() << " mode=" << mode
<< " offset=" << additionalOffset << " address=0x" << std::hex << stringAddress
<< std::dec << " expr=" << symbolName;
SymbolGroupNode *stringNode =
v.node()->symbolGroup()->addSymbol(v.module(), symbolName, std::string(), &errorMessage);
if (!stringNode && errorMessage.find("DEBUG_ANY_ID") != std::string::npos) {
// HACK:
// In some rare cases the the AddSymbol can't create a node with a given module name,
// but is able to add the symbol without any modulename.
dumpType = QtInfo::get(v.context()).prependModuleAndNameSpace("QString", "", QtInfo::get(v.context()).nameSpace);
symbolName = SymbolGroupValue::pointedToSymbolName(stringAddress , dumpType);
stringNode = v.node()->symbolGroup()->addSymbol(v.module(), symbolName, std::string(), &errorMessage);
if (!stringNode)
return false;
}
return dumpQString(SymbolGroupValue(stringNode, v.context()), str);
}
// Convenience to dump a QByteArray from the unexported private class of a Qt class.
static bool dumpQByteArrayFromQPrivateClass(const SymbolGroupValue &v,
QPrivateDumpMode mode,
unsigned additionalOffset,
std::wostream &str)
{
std::string errorMessage;
const ULONG64 byteArrayAddress = addressOfQPrivateMember(v, mode, additionalOffset);
if (!byteArrayAddress)
return false;
const std::string dumpType = QtInfo::get(v.context()).prependQtCoreModule("QByteArray");
const std::string symbolName = SymbolGroupValue::pointedToSymbolName(byteArrayAddress , dumpType);
SymbolGroupNode *byteArrayNode =
v.node()->symbolGroup()->addSymbol(v.module(), symbolName, std::string(), &errorMessage);
if (!byteArrayNode)
return false;
return dumpQByteArray(SymbolGroupValue(byteArrayNode, v.context()), str);
}
/* Dump QFileInfo, for whose private class no debugging information is available.
* Dump 2nd string past its QSharedData base class. */
static inline bool dumpQFileInfo(const SymbolGroupValue &v, std::wostream &str)
{
return dumpQStringFromQPrivateClass(v, QPDM_qSharedDataPadded, qStringSize(v.context()), str);
}
/* Dump QDir, for whose private class no debugging information is available.
* Dump 1st string past its QSharedData base class. */
static bool inline dumpQDir(const SymbolGroupValue &v, std::wostream &str)
{
const unsigned offset =
v.fieldOffset(QtInfo::get(v.context()).prependQtCoreModule("QDirPrivate").c_str(),
"dirEntry.m_filePath");
return dumpQStringFromQPrivateClass(v, QPDM_None, offset, str);
}
/* Dump QRegExp, for whose private class no debugging information is available.
* Dump 1st string past of its base class. */
static inline bool dumpQRegExp(const SymbolGroupValue &v, std::wostream &str)
{
return dumpQStringFromQPrivateClass(v, QPDM_qSharedDataPadded, 0, str);
}
/* Dump QFile, for whose private class no debugging information is available.
* Dump the 1st string first past its QIODevicePrivate base class. */
static inline bool dumpQFile(const SymbolGroupValue &v, std::wostream &str)
{
// Get address of the file name string, obtain value by dumping a QString at address
static unsigned qIoDevicePrivateSize = 0;
if (!qIoDevicePrivateSize) {
const std::string qIoDevicePrivateType = QtInfo::get(v.context()).prependQtCoreModule("QIODevicePrivate");
qIoDevicePrivateSize = padOffset(SymbolGroupValue::sizeOf(qIoDevicePrivateType.c_str()));
}
if (!qIoDevicePrivateSize)
return false;
return dumpQStringFromQPrivateClass(v, QPDM_qVirtual, qIoDevicePrivateSize, str);
}
/* Dump QHostAddress, for whose private class no debugging information is available.
* Dump string 'ipString' past of its private class. Does not currently work? */
static inline bool dumpQHostAddress(const SymbolGroupValue &v, std::wostream &str)
{
// Determine offset in private struct: qIPv6AddressType (array, unaligned) + uint32 + enum.
const QtInfo info = QtInfo::get(v.context());
SymbolGroupValue d = v["d"]["d"];
std::ostringstream namestr;
namestr << '(' << info.prependQtNetworkModule("QHostAddressPrivate *") << ")("
<< std::showbase << std::hex << d.pointerValue() << ')';
SymbolGroupNode *qHostAddressPrivateNode
= v.node()->symbolGroup()->addSymbol(v.module(), namestr.str(), std::string(), &std::string());
if (!qHostAddressPrivateNode)
return false;
const SymbolGroupValue qHostAddressPrivateValue = SymbolGroupValue(qHostAddressPrivateNode, v.context());
const bool parsed = readPODFromMemory<bool>(qHostAddressPrivateValue.context().dataspaces,
qHostAddressPrivateValue["isParsed"].address(),
sizeof(bool), false, &std::string());
if (parsed) {
const int protocol = qHostAddressPrivateValue["protocol"].intValue(-1);
if (protocol < 0) {
str << L"Uninitialized/Unknown protocol";
return true;
}
if (protocol == 1) {
str << L"IPv6 protocol";
return true;
}
DebugPrint() << v.name().c_str() << ": " << parsed;
const SymbolGroupValue a = qHostAddressPrivateValue["a"];
const unsigned int address = static_cast<unsigned int>(SymbolGroupValue::readIntValue(v.context().dataspaces, a.address()));
str << (address >> 24) << '.'
<< (address << 8 >> 24) << '.'
<< (address << 16 >> 24) << '.'
<< (address << 24 >> 24);
return true;
}
unsigned offset = 0;
if (info.version < 5) {
static unsigned qIPv6AddressSize = 0;
if (!qIPv6AddressSize) {
const std::string qIPv6AddressType = QtInfo::get(v.context()).prependQtNetworkModule("QIPv6Address");
qIPv6AddressSize = SymbolGroupValue::sizeOf(qIPv6AddressType.c_str());
}
if (!qIPv6AddressSize)
return false;
offset = padOffset(8 + qIPv6AddressSize);
}
return dumpQStringFromQPrivateClass(v, QPDM_None, offset, str);
}
/* Dump QProcess, for whose private class no debugging information is available.
* Dump string 'program' string with empirical offset. */
static inline bool dumpQProcess(const SymbolGroupValue &v, std::wostream &str)
{
const unsigned offset = SymbolGroupValue::pointerSize() == 8 ? 424 : 260;
return dumpQStringFromQPrivateClass(v, QPDM_qVirtual, offset, str);
}
/* Dump QScriptValue, for whose private class no debugging information is available.
* Private class has a pointer to engine, type enumeration and a JSC:JValue and double/QString
* for respective types. */
static inline bool dumpQScriptValue(const SymbolGroupValue &v, std::wostream &str)
{
std::string errorMessage;
// Read out type
const ULONG64 privateAddress = addressOfQPrivateMember(v, QPDM_None, 0);
if (!privateAddress) { // Can actually be 0 for default-constructed
str << L"<Invalid>";
return true;
}
const unsigned ps = SymbolGroupValue::pointerSize();
// Offsets of QScriptValuePrivate
const unsigned jscScriptValueSize = 8; // Union of double and rest.
const unsigned doubleValueOffset = 2 * ps + jscScriptValueSize;
const unsigned stringValueOffset = doubleValueOffset + sizeof(double);
const ULONG64 type =
SymbolGroupValue::readUnsignedValue(v.context().dataspaces,
privateAddress + ps, 4, 0, &errorMessage);
switch (type) {
case 1:
str << SymbolGroupValue::readDouble(v.context().dataspaces, privateAddress + doubleValueOffset);
break;
case 2:
return dumpQStringFromQPrivateClass(v, QPDM_None, stringValueOffset, str);
default:
str << L"<JavaScriptCore>";
break;
}
return true;
}
/* Dump QUrl for whose private class no debugging information is available.
* Dump the 'originally encoded' byte array of its private class. */
static inline bool dumpQUrl(const SymbolGroupValue &v, std::wostream &str)
{
// Get address of the original-encoded byte array, obtain value by dumping at address
if (QtInfo::get(v.context()).version < 5) {
const ULONG offset = padOffset(qAtomicIntSize(v.context()))
+ 6 * qStringSize(v.context()) + qByteArraySize(v.context());
return dumpQByteArrayFromQPrivateClass(v, QPDM_None, offset, str);
}
ULONG offset = qAtomicIntSize(v.context()) +
SymbolGroupValue::intSize();
const unsigned stringSize = qStringSize(v.context());
str << L"Scheme: ";
if (!dumpQStringFromQPrivateClass(v, QPDM_None, offset, str))
return false;
offset += stringSize;
str << L" User: ";
if (!dumpQStringFromQPrivateClass(v, QPDM_None, offset, str))
return false;
offset += stringSize;
str << L" Password: ";
if (!dumpQStringFromQPrivateClass(v, QPDM_None, offset, str))
return false;
offset += stringSize;
str << L" Host: ";
if (!dumpQStringFromQPrivateClass(v, QPDM_None, offset, str))
return false;
offset += stringSize;
str << L" Path: ";
if (!dumpQStringFromQPrivateClass(v, QPDM_None, offset, str))
return false;
offset += stringSize;
str << L" Query: ";
if (!dumpQStringFromQPrivateClass(v, QPDM_None, offset, str))
return false;
offset += stringSize;
str << L" Fragment: ";
if (!dumpQStringFromQPrivateClass(v, QPDM_None, offset, str))
return false;
return true;
}
// Dump QColor
static bool dumpQColor(const SymbolGroupValue &v, std::wostream &str)
{
const SymbolGroupValue specV = v["cspec"];
if (!specV)
return false;
const int spec = specV.intValue();
if (spec == 0) {
str << L"<Invalid color>";
return true;
}
if (spec < 1 || spec > 4)
return false;
const SymbolGroupValue arrayV = v["ct"]["array"];
if (!arrayV)
return false;
const int a0 = arrayV["0"].intValue();
const int a1 = arrayV["1"].intValue();
const int a2 = arrayV["2"].intValue();
const int a3 = arrayV["3"].intValue();
const int a4 = arrayV["4"].intValue();
if (a0 < 0 || a1 < 0 || a2 < 0 || a3 < 0 || a4 < 0)
return false;
switch (spec) {
case 1: // Rgb
str << L"RGB alpha=" << (a0 / 0x101) << L", red=" << (a1 / 0x101)
<< L", green=" << (a2 / 0x101) << ", blue=" << (a3 / 0x101);
break;
case 2: // Hsv
str << L"HSV alpha=" << (a0 / 0x101) << L", hue=" << (a1 / 100)
<< L", sat=" << (a2 / 0x101) << ", value=" << (a3 / 0x101);
break;
case 3: // Cmyk
str << L"CMYK alpha=" << (a0 / 0x101) << L", cyan=" << (a1 / 100)
<< L", magenta=" << (a2 / 0x101) << ", yellow=" << (a3 / 0x101)
<< ", black=" << (a4 / 0x101);
break;
case 4: // Hsl
str << L"HSL alpha=" << (a0 / 0x101) << L", hue=" << (a1 / 100)
<< L", sat=" << (a2 / 0x101) << ", lightness=" << (a3 / 0x101);
break;
}
return true;
}
// Dump Qt's core types
static inline bool dumpQBasicAtomicInt(const SymbolGroupValue &v, std::wostream &str)
{
if (const SymbolGroupValue iValue = v["_q_value"]) {
str << iValue.value();
return true;
}
return false;
}
static inline bool dumpQAtomicInt(const SymbolGroupValue &v, std::wostream &str)
{
if (const SymbolGroupValue base = v[unsigned(0)])
return dumpQBasicAtomicInt(base, str);
return false;
}
static bool dumpQChar(const SymbolGroupValue &v, std::wostream &str)
{
if (SymbolGroupValue cValue = v["ucs"]) {
const int utf16 = cValue.intValue();
if (utf16 >= 0) {
// Print code = character,
// exclude control characters and Pair indicator
if (utf16 >= 32 && (utf16 < 0xD800 || utf16 > 0xDBFF))
str << '\'' << wchar_t(utf16) << "' ";
str << '(' << utf16 << ')';
}
return true;
}
return false;
}
static inline bool dumpQFlags(const SymbolGroupValue &v, std::wostream &str)
{
if (SymbolGroupValue iV = v["i"]) {
const int i = iV.intValue();
if (i >= 0) {
str << i;
return true;
}
}
return false;
}
static bool dumpQDate(const SymbolGroupValue &v, std::wostream &str)
{
if (const SymbolGroupValue julianDayV = v["jd"]) {
if (julianDayV.intValue() > 0)
str << julianDayV.intValue();
return true;
}
return false;
}
static bool dumpQTime(const SymbolGroupValue &v, std::wostream &str)
{
if (const SymbolGroupValue milliSecsV = v["mds"]) {
const int milliSecs = milliSecsV.intValue();
str << milliSecs;
return true;
}
return false;
}
// QDateTime has an unexported private class. Obtain date and time
// from memory.
static bool dumpQDateTime(const SymbolGroupValue &v, std::wostream &str)
{
// QDate is 64bit starting from Qt 5 which is always aligned 64bit.
const int qtVersion = QtInfo::get(v.context()).version;
const ULONG64 dateAddr = qtVersion < 5 ?
addressOfQPrivateMember(v, QPDM_qSharedData, 0) :
addressOfQPrivateMember(v, QPDM_None, 8);
if (!dateAddr)
return false;
const int date =
SymbolGroupValue::readIntValue(v.context().dataspaces,
dateAddr, SymbolGroupValue::intSize(), 0);
if (!date) {
str << L"<null>";
return true;
}
const ULONG64 timeAddr = dateAddr + (qtVersion < 5 ? SymbolGroupValue::intSize() : 8);
const int time =
SymbolGroupValue::readIntValue(v.context().dataspaces,
timeAddr, SymbolGroupValue::intSize(), 0);
str << date << '/' << time;
return true;
}
static bool dumpQPixmap(const SymbolGroupValue &v, std::wostream &str)
{
const SymbolGroupValue pixmapSharedData = v["data"]["d"];
if (!pixmapSharedData.isValid())
return false;
ULONG64 addr = pixmapSharedData.pointerValue();
if (addr) {
const unsigned int width =
SymbolGroupValue::readIntValue(v.context().dataspaces,
addr += SymbolGroupValue::pointerSize(),
SymbolGroupValue::intSize(), 0);
const unsigned int height =
SymbolGroupValue::readIntValue(v.context().dataspaces,
addr += SymbolGroupValue::intSize(),
SymbolGroupValue::intSize(), 0);
const unsigned int depth =
SymbolGroupValue::readIntValue(v.context().dataspaces,
addr += SymbolGroupValue::intSize(),
SymbolGroupValue::intSize(), 0);
if (width && height) {
str << width << L'x' << height << L", depth: " << depth;
return true;
}
}
str << L"<null>";
return true;
}
static bool dumpQImage(const SymbolGroupValue &v, std::wostream &str, MemoryHandle **memoryHandle)
{
struct CreatorImageHeader { // Header for image display as edit format, followed by data.
int width;
int height;
int format;
};
const QtInfo &qtInfo(QtInfo::get(v.context()));
// Fetch data of unexported private class
const ULONG64 address = v["d"].pointerValue();
if (!address) {
str << L"<null>";
return true;
}
const std::string qImageDataType = qtInfo.prependQtGuiModule("QImageData");
const unsigned long size = SymbolGroupValue::sizeOf(qImageDataType.c_str());
if (!size)
return false;
unsigned char *qImageData = SymbolGroupValue::readMemory(v.context().dataspaces, address, size);
if (!qImageData)
return false;
// read size data
unsigned char *ptr = qImageData + qAtomicIntSize(v.context());
CreatorImageHeader header;
header.width = *(reinterpret_cast<int *>(ptr));
ptr += SymbolGroupValue::intSize();
header.height = *(reinterpret_cast<int *>(ptr));
ptr += SymbolGroupValue::intSize();
const int depth = *(reinterpret_cast<int *>(ptr));
ptr += SymbolGroupValue::intSize();
const int nbytes = *(reinterpret_cast<int *>(ptr));
const unsigned dataOffset = SymbolGroupValue::fieldOffset(qImageDataType.c_str(), "data");
// Qt 4 has a Qt 3 support pointer member between 'data' and 'format'.
const unsigned formatOffset = SymbolGroupValue::fieldOffset(qImageDataType.c_str(), "format");
if (!dataOffset || !formatOffset)
return false;
ptr = qImageData + dataOffset;
// read data pointer
ULONG64 data = 0;
memcpy(&data, ptr, SymbolGroupValue::pointerSize());
// read format
ptr = qImageData + formatOffset;
header.format = *(reinterpret_cast<int *>(ptr));
if (header.width < 0 || header.height < 0 || header.format < 0 || header.format > 255
|| nbytes < 0 || depth < 0) {
return false;
}
str << header.width << L'x' << header.height << L", depth: " << depth
<< L", format: " << header.format << L", "
<< nbytes << L" bytes";
delete [] qImageData;
// Create Creator Image data for display if reasonable size
if (memoryHandle && data && nbytes > 0 && nbytes < 205824) {
if (unsigned char *imageData = SymbolGroupValue::readMemory(v.context().dataspaces, data, nbytes)) {
unsigned char *creatorImageData = new unsigned char[sizeof(CreatorImageHeader) + nbytes];
memcpy(creatorImageData, &header, sizeof(CreatorImageHeader));
memcpy(creatorImageData + sizeof(CreatorImageHeader), imageData, nbytes);
delete [] imageData;
*memoryHandle = new MemoryHandle(creatorImageData, sizeof(CreatorImageHeader) + nbytes);
// cppcheck: don't delete[] creatorImageData here, it's taken over by MemoryHandle
}
}
return true;
}
// Dump a rectangle in X11 syntax
template <class T>
inline void dumpRect(std::wostream &str, T x, T y, T width, T height)
{
str << width << 'x' << height;
if (x >= 0)
str << '+';
str << x;
if (y >= 0)
str << '+';
str << y;
}
// Dump Qt's simple geometrical types
static inline bool dumpQSize_F(const SymbolGroupValue &v, std::wostream &str)
{
str << '(' << v["wd"].value() << ", " << v["ht"].value() << ')';
return true;
}
static inline bool dumpQPoint_F(const SymbolGroupValue &v, std::wostream &str)
{
str << '(' << v["xp"].value() << ", " << v["yp"].value() << ')';
return true;
}
static inline bool dumpQLine_F(const SymbolGroupValue &v, std::wostream &str)
{
const SymbolGroupValue p1 = v["pt1"];
const SymbolGroupValue p2 = v["pt2"];
if (p1 && p2) {
str << '(' << p1["xp"].value() << ", " << p1["yp"].value() << ") ("
<< p2["xp"].value() << ", " << p2["yp"].value() << ')';
return true;
}
return false;
}
static inline bool dumpQRect(const SymbolGroupValue &v, std::wostream &str)
{
const int x1 = v["x1"].intValue();
const int y1 = v["y1"].intValue();
const int x2 = v["x2"].intValue();
const int y2 = v["y2"].intValue();
dumpRect(str, x1, y1, (x2 - x1 + 1), (y2 - y1 + 1));
return true;
}
static inline bool dumpQRectF(const SymbolGroupValue &v, std::wostream &str)
{
dumpRect(str, v["xp"].floatValue(), v["yp"].floatValue(), v["w"].floatValue(), v["h"].floatValue());
return true;
}
/* Return a SymbolGroupValue containing the private class of
* a type (multiple) derived from QObject and something else
* (QWidget: QObject,QPaintDevice or QWindow: QObject,QSurface).
* We get differing behaviour for pointers and values on stack.
* For 'QWidget *', the base class QObject usually can be accessed
* by name (past the vtable). When browsing class hierarchies (stack),
* typically only the uninteresting QPaintDevice is seen. */
SymbolGroupValue qobjectDerivedPrivate(const SymbolGroupValue &v,
const std::string &qwPrivateType,
const QtInfo &qtInfo)
{
if (const SymbolGroupValue base = v[SymbolGroupValue::stripModuleFromType(qtInfo.qObjectType).c_str()])
if (const SymbolGroupValue qwPrivate = base["d_ptr"]["d"].pointerTypeCast(qwPrivateType.c_str()))
return qwPrivate;
if (!SymbolGroupValue::isPointerType(v.type()))
return SymbolGroupValue();
// Class hierarchy: Using brute force, add new symbol based on that
// QScopedPointer<Private> is basically a 'X *' (first member).
std::string errorMessage;
std::ostringstream str;
str << '(' << qwPrivateType << "*)(" << std::showbase << std::hex << v.address() << ')';
const std::string name = str.str();
SymbolGroupNode *qwPrivateNode
= v.node()->symbolGroup()->addSymbol(v.module(), name, std::string(), &errorMessage);
return SymbolGroupValue(qwPrivateNode, v.context());
}
static bool dumpQObjectName(const SymbolGroupValue &qoPrivate, std::wostream &str)
{
// Qt 4: plain member.
if (QtInfo::get(qoPrivate.context()).version < 5) {
if (const SymbolGroupValue oName = qoPrivate["objectName"])
return dumpQString(oName, str);
}
// Qt 5: member of allocated extraData.
if (const SymbolGroupValue extraData = qoPrivate["extraData"])
if (extraData.pointerValue())
if (const SymbolGroupValue oName = extraData["objectName"])
return dumpQString(oName, str);
return false;
}
// Dump the object name
static inline bool dumpQWidget(const SymbolGroupValue &v, std::wostream &str, void **specialInfoIn = 0)
{
const QtInfo &qtInfo = QtInfo::get(v.context());
const SymbolGroupValue qwPrivate =
qobjectDerivedPrivate(v, qtInfo.qWidgetPrivateType, qtInfo);
// QWidgetPrivate inherits QObjectPrivate
if (!qwPrivate || !dumpQObjectName(qwPrivate[unsigned(0)], str))
return false;
if (specialInfoIn)
*specialInfoIn = qwPrivate.node();
return true;
}
// Dump the object name
static inline bool dumpQObject(const SymbolGroupValue &v, std::wostream &str, void **specialInfoIn = 0)
{
const std::string &qoPrivateType = QtInfo::get(v.context()).qObjectPrivateType;
const SymbolGroupValue qoPrivate = v["d_ptr"]["d"].pointerTypeCast(qoPrivateType.c_str());
if (!qoPrivate || !dumpQObjectName(qoPrivate, str))
return false;
if (specialInfoIn)
*specialInfoIn = qoPrivate.node();
return true;
}
// Dump the object name
static inline bool dumpQWindow(const SymbolGroupValue &v, std::wostream &str, void **specialInfoIn = 0)
{
const QtInfo &qtInfo = QtInfo::get(v.context());
const SymbolGroupValue qwPrivate =
qobjectDerivedPrivate(v, qtInfo.qWindowPrivateType, qtInfo);
// QWindowPrivate inherits QObjectPrivate
if (!qwPrivate || !dumpQObjectName(qwPrivate[unsigned(0)], str))
return false;
if (specialInfoIn)
*specialInfoIn = qwPrivate.node();
return true;
}
// Dump a std::string.
static bool dumpStd_W_String(const SymbolGroupValue &v, int type, std::wostream &str,
MemoryHandle **memoryHandle = 0)
{
// Find 'bx'. MSVC 2012 has 2 base classes, MSVC 2010 1,
// and MSVC2008 none
const SymbolGroupValue bx = SymbolGroupValue::findMember(v, "_Bx");
const int reserved = bx.parent()["_Myres"].intValue();
int size = bx.parent()["_Mysize"].intValue();
if (!bx || reserved < 0 || size < 0)
return false;
const bool truncated = unsigned(size) > ExtensionContext::instance().parameters().maxStringLength;
if (truncated)
size = ExtensionContext::instance().parameters().maxStringLength;
// 'Buf' array for small strings, else pointer 'Ptr'.
const int bufSize = type == KT_StdString ? 16 : 8; // see basic_string.
const unsigned long memSize = type == KT_StdString ? size : 2 * size;
const ULONG64 address = reserved >= bufSize ? bx["_Ptr"].pointerValue() : bx["_Buf"].address();
if (!address)
return false;
unsigned char *memory = SymbolGroupValue::readMemory(v.context().dataspaces, address, memSize);
if (!memory)
return false;
str << (type == KT_StdString ?
quotedWStringFromCharData(memory, memSize, truncated) :
quotedWStringFromWCharData(memory, memSize, truncated));
if (memoryHandle)
*memoryHandle = new MemoryHandle(memory, memSize);
else
delete [] memory;
return true;
}
// QVariant employs a template for storage where anything bigger than the data union
// is pointed to by data.shared.ptr, else it is put into the data struct (pointer size)
// itself (notably Qt types consisting of a d-ptr only).
// The layout can vary between 32 /64 bit for some types: QPoint/QSize (of 2 ints) is bigger
// as a pointer only on 32 bit.
static inline SymbolGroupValue qVariantCast(const SymbolGroupValue &variantData, const char *type)
{
const ULONG typeSize = SymbolGroupValue::sizeOf(type);
const std::string ptrType = std::string(type) + " *";
if (typeSize > variantData.size())
return variantData["shared"]["ptr"].pointerTypeCast(ptrType.c_str());
return variantData.typeCast(ptrType.c_str());
}
// Qualify a local container template of Qt Types for QVariant
// as 'QList' of 'QVariant' -> 'localModule!qtnamespace::QList<qtnamespace::QVariant> *'
static inline std::string
variantContainerType(const std::string &containerType,
const std::string &innerType1,
const std::string &innerType2 /* = "" */,
const QtInfo &qtInfo,
const SymbolGroupValue &contextHelper)
{
std::string rc = QtInfo::prependModuleAndNameSpace(containerType, contextHelper.module(),
qtInfo.nameSpace);
rc.push_back('<');
rc += QtInfo::prependModuleAndNameSpace(innerType1, std::string(), qtInfo.nameSpace);
if (!innerType2.empty()) {
rc.push_back(',');
rc += QtInfo::prependModuleAndNameSpace(innerType2, std::string(), qtInfo.nameSpace);
}
rc += "> *";
return rc;
}
static bool dumpQVariant(const SymbolGroupValue &v, std::wostream &str, void **specialInfoIn = 0)
{
const QtInfo &qtInfo = QtInfo::get(v.context());
const SymbolGroupValue dV = v["d"];
if (!dV)
return false;
const SymbolGroupValue typeV = dV["type"];
const SymbolGroupValue dataV = dV["data"];
if (!typeV || !dataV)
return false;
const int typeId = typeV.intValue();
if (typeId <= 0) {
str << L"<Invalid>";
return true;
}
switch (typeId) {
case 1: // Bool
str << L"(bool) " << dataV["b"].value();
break;
case 2: // Int
str << L"(int) " << dataV["i"].value();
break;
case 3: // UInt
str << L"(unsigned) " << dataV["u"].value();
break;
case 4: // LongLong
str << L"(long long) " << dataV["ll"].value();
break;
case 5: // LongLong
str << L"(unsigned long long) " << dataV["ull"].value();
break;
case 6: // Double
str << L"(double) " << dataV["d"].value();
break;
case 7: // Char
str << L"(char) " << dataV["c"].value();
break;
case 8: {
str << L"(QVariantMap) ";
const std::string vmType = variantContainerType("QMap", "QString", "QVariant", qtInfo, dataV);
if (const SymbolGroupValue mv = dataV.typeCast(vmType.c_str())) {
SymbolGroupNode *mapNode = mv.node();
std::wstring value;
if (dumpSimpleType(mapNode, dataV.context(), &value) == SymbolGroupNode::SimpleDumperOk) {
str << value;
if (specialInfoIn)
*specialInfoIn = mapNode;
}
}
}
break;
case 9: { // QVariantList
str << L"(QVariantList) ";
const std::string vLType = variantContainerType("QList", "QVariant", std::string(), qtInfo, dataV);
if (const SymbolGroupValue vl = dataV.typeCast(vLType.c_str())) {
SymbolGroupNode *vListNode = vl.node();
std::wstring value;
if (dumpSimpleType(vListNode, dataV.context(), &value) == SymbolGroupNode::SimpleDumperOk) {
str << value;
if (specialInfoIn)
*specialInfoIn = vListNode;
}
}
}
break;
case 10: // String
str << L"(QString) ";
if (const SymbolGroupValue sv = dataV.typeCast(qtInfo.prependQtCoreModule("QString *").c_str())) {
if (!dumpQString(sv, str)) {
// HACK:
// In some rare cases the the AddSymbol can't create a node with a given module name,
// but is able to add the symbol without any modulename.
if (const SymbolGroupValue svc = dataV.typeCast("QString *"))
dumpQString(svc, str);
}
}
break;
case 11: //StringList: Dump container size
str << L"(QStringList) ";
if (const SymbolGroupValue sl = dataV.typeCast(qtInfo.prependQtCoreModule("QStringList *").c_str())) {
SymbolGroupNode *listNode = sl.node();
std::wstring value;
if (dumpSimpleType(listNode, dataV.context(), &value) == SymbolGroupNode::SimpleDumperOk) {
str << value;
if (specialInfoIn)
*specialInfoIn = listNode;
}
}
break;
case 12: //ByteArray
str << L"(QByteArray) ";
if (const SymbolGroupValue sv = dataV.typeCast(qtInfo.prependQtCoreModule("QByteArray *").c_str()))
dumpQByteArray(sv, str);
break;
case 13: // BitArray
str << L"(QBitArray)";
break;
case 14: // Date: Do not qualify - fails non-deterministically with QtCored4!QDate
str << L"(QDate) ";
if (const SymbolGroupValue sv = dataV.typeCast("QDate *"))
dumpQDate(sv, str);
break;
case 15: // Time: Do not qualify - fails non-deterministically with QtCored4!QTime
str << L"(QTime) ";
if (const SymbolGroupValue sv = dataV.typeCast("QTime *"))
dumpQTime(sv, str);
break;
case 16: // DateTime
str << L"(QDateTime)";
break;
case 17: // Url
str << L"(QUrl)";
break;
case 18: // Locale
str << L"(QLocale)";
break;
case 19: // Rect:
str << L"(QRect) ";
if (const SymbolGroupValue sv = dataV["shared"]["ptr"].pointerTypeCast(qtInfo.prependQtCoreModule("QRect *").c_str()))
dumpQRect(sv, str);
break;
case 20: // RectF
str << L"(QRectF) ";
if (const SymbolGroupValue sv = dataV["shared"]["ptr"].pointerTypeCast(qtInfo.prependQtCoreModule("QRectF *").c_str()))
dumpQRectF(sv, str);
break;
case 21: // Size
// Anything bigger than the data union is a pointer, else the data union is used
str << L"(QSize) ";
if (const SymbolGroupValue sv = qVariantCast(dataV, qtInfo.prependQtCoreModule("QSize").c_str()))
dumpQSize_F(sv, str);
break;
case 22: // SizeF
str << L"(QSizeF) ";
if (const SymbolGroupValue sv = dataV["shared"]["ptr"].pointerTypeCast(qtInfo.prependQtCoreModule("QSizeF *").c_str()))
dumpQSize_F(sv, str);
break;
case 23: // Line
str << L"(QLine) ";
if (const SymbolGroupValue sv = dataV["shared"]["ptr"].pointerTypeCast(qtInfo.prependQtCoreModule("QLine *").c_str()))
dumpQLine_F(sv, str);
break;
case 24: // LineF
str << L"(QLineF) ";
if (const SymbolGroupValue sv = dataV["shared"]["ptr"].pointerTypeCast(qtInfo.prependQtCoreModule("QLineF *").c_str()))
dumpQLine_F(sv, str);
break;
case 25: // Point
str << L"(QPoint) ";
if (const SymbolGroupValue sv = qVariantCast(dataV, qtInfo.prependQtCoreModule("QPoint").c_str()))
dumpQPoint_F(sv, str);
break;
case 26: // PointF
str << L"(QPointF) ";
if (const SymbolGroupValue sv = dataV["shared"]["ptr"].pointerTypeCast(qtInfo.prependQtCoreModule("QPointF *").c_str()))
dumpQPoint_F(sv, str);
break;
case 65: // QPixmap
str << L"(QPixmap) ";
if (const SymbolGroupValue sv = qVariantCast(dataV, qtInfo.prependQtGuiModule("QPixmap").c_str()))
dumpQPixmap(sv, str);
break;
default:
str << L"Type " << typeId;
break;
}
return true;
}
// Dump a qsharedpointer (just list reference counts)
static inline bool dumpQSharedPointer(const SymbolGroupValue &v, std::wostream &str, void **specialInfoIn = 0)
{
const SymbolGroupValue externalRefCountV = v[unsigned(0)];
if (!externalRefCountV)
return false;
const SymbolGroupValue dV = externalRefCountV["d"];
if (!dV)
return false;
// Get value element from base and store in special info.
const SymbolGroupValue valueV = externalRefCountV[unsigned(0)]["value"];
if (!valueV)
return false;
// Format references.
const int strongRef = dV["strongref"]["_q_value"].intValue();
const int weakRef = dV["weakref"]["_q_value"].intValue();
if (strongRef < 0 || weakRef < 0)
return false;
str << L"References: " << strongRef << '/' << weakRef;
*specialInfoIn = valueV.node();
return true;
}
// Dump builtin simple types using SymbolGroupValue expressions.
unsigned dumpSimpleType(SymbolGroupNode *n, const SymbolGroupValueContext &ctx,
std::wstring *s, int *knownTypeIn /* = 0 */,
int *containerSizeIn /* = 0 */,
void **specialInfoIn /* = 0 */,
MemoryHandle **memoryHandleIn /* = 0 */)
{
QTC_TRACE_IN
if (containerSizeIn)
*containerSizeIn = -1;
if (specialInfoIn)
*specialInfoIn = 0;
// Check for class types and strip pointer types (references appear as pointers as well)
s->clear();
const KnownType kt = knownType(n->type(), KnownTypeHasClassPrefix|KnownTypeAutoStripPointer);
if (knownTypeIn)
*knownTypeIn = kt;
if (kt == KT_Unknown || !(kt & KT_HasSimpleDumper)) {
if (SymbolGroupValue::verbose > 1)
DebugPrint() << "dumpSimpleType N/A " << n->name() << '/' << n->type();
QTC_TRACE_OUT
return SymbolGroupNode::SimpleDumperNotApplicable;
}
std::wostringstream str;
// Prefix by pointer value
const SymbolGroupValue v(n, ctx);
if (!v) // Value as such has memory read error?
return SymbolGroupNode::SimpleDumperFailed;
if (SymbolGroupValue::isPointerType(v.type()))
if (const ULONG64 pointerValue = v.pointerValue())
str << std::showbase << std::hex << pointerValue << std::dec << std::noshowbase << ' ';
// Simple dump of size for containers
if (kt & KT_ContainerType) {
const int size = containerSize(kt, v);
if (SymbolGroupValue::verbose > 1)
DebugPrint() << "dumpSimpleType Container " << n->name() << '/' << n->type() << " size=" << size;
if (containerSizeIn)
*containerSizeIn = size;
if (size >= 0) {
str << L'<' << size << L" items>";
*s = str.str();
return SymbolGroupNode::SimpleDumperOk;
}
return SymbolGroupNode::SimpleDumperFailed;
}
unsigned rc = SymbolGroupNode::SimpleDumperNotApplicable;
switch (kt) {
case KT_QChar:
rc = dumpQChar(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QByteArray:
rc = dumpQByteArray(v, str, memoryHandleIn) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QFileInfo:
rc = dumpQFileInfo(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QFile:
rc = dumpQFile(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QDir:
rc = dumpQDir(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QRegExp:
rc = dumpQRegExp(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QUrl:
rc = dumpQUrl(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QHostAddress:
rc = dumpQHostAddress(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QProcess:
rc = dumpQProcess(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QScriptValue:
rc = dumpQScriptValue(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QString:
rc = dumpQString(v, str, memoryHandleIn) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QStringRef:
rc = dumpQStringRef(v, str, memoryHandleIn) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QColor:
rc = dumpQColor(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QFlags:
rc = dumpQFlags(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QDate:
rc = dumpQDate(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QTime:
rc = dumpQTime(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QDateTime:
rc = dumpQDateTime(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QPoint:
case KT_QPointF:
rc = dumpQPoint_F(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QSize:
case KT_QSizeF:
rc = dumpQSize_F(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QLine:
case KT_QLineF:
rc = dumpQLine_F(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QPixmap:
rc = dumpQPixmap(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QImage:
rc = dumpQImage(v, str, memoryHandleIn) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QRect:
rc = dumpQRect(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QRectF:
rc = dumpQRectF(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QVariant:
rc = dumpQVariant(v, str, specialInfoIn) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QAtomicInt:
rc = dumpQAtomicInt(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QBasicAtomicInt:
rc = dumpQBasicAtomicInt(v, str) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QObject:
rc = dumpQObject(v, str, specialInfoIn) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QWidget:
rc = dumpQWidget(v, str, specialInfoIn) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QWindow:
rc = dumpQWindow(v, str, specialInfoIn) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_QSharedPointer:
rc = dumpQSharedPointer(v, str, specialInfoIn) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
case KT_StdString:
case KT_StdWString:
rc = dumpStd_W_String(v, kt, str, memoryHandleIn) ? SymbolGroupNode::SimpleDumperOk : SymbolGroupNode::SimpleDumperFailed;
break;
default:
break;
}
if (rc == SymbolGroupNode::SimpleDumperOk)
*s = str.str();
QTC_TRACE_OUT
if (SymbolGroupValue::verbose > 1) {
DebugPrint dp;
dp << "dumpSimpleType " << n->name() << '/' << n->type() << " knowntype= " << kt << " [";
formatKnownTypeFlags(dp, kt);
dp << "] returns " << rc;
}
return rc;
}
static inline void formatEditValue(int displayFormat, const MemoryHandle *mh, std::ostream &str)
{
str << "editformat=\"" << displayFormat << "\",editvalue=\""
<< mh->toHex() << "\",";
}
bool dumpEditValue(const SymbolGroupNode *n, const SymbolGroupValueContext &,
int desiredFormat, std::ostream &str)
{
// Keep in sync watchhandler.cpp/showEditValue(), dumper.py.
enum DebuggerEditFormats {
DisplayImageData = 1,
DisplayUtf16String = 2,
DisplayImageFile = 3,
DisplayProcess = 4,
DisplayLatin1String = 5,
DisplayUtf8String = 6
};
enum Formats {
NormalFormat = 0,
StringSeparateWindow = 1 // corresponds to menu index.
};
if (desiredFormat <= 0)
return true;
if (SymbolGroupValue::verbose)
DebugPrint() << __FUNCTION__ << ' ' << n->name() << '/' << desiredFormat;
switch (n->dumperType()) {
case KT_QString:
case KT_StdWString:
if (desiredFormat == StringSeparateWindow)
if (const MemoryHandle *mh = n->memory())
formatEditValue(DisplayUtf16String, mh, str);
break;
case KT_QByteArray:
case KT_StdString:
if (desiredFormat == StringSeparateWindow)
if (const MemoryHandle *mh = n->memory())
formatEditValue(DisplayLatin1String, mh, str);
break;
case KT_QImage:
if (desiredFormat == 1) // Image.
if (const MemoryHandle *mh = n->memory())
formatEditValue(DisplayImageData, mh, str);
break;
}
return true;
}
// Dump of QByteArray: Display as an array of unsigned chars.
static inline std::vector<AbstractSymbolGroupNode *>
complexDumpQByteArray(SymbolGroupNode *n, const SymbolGroupValueContext &ctx)
{
std::vector<AbstractSymbolGroupNode *> rc;
const SymbolGroupValue baV(n, ctx);
const SymbolGroupValue dV = baV["d"];
if (!dV)
return rc;
// Determine memory area.
unsigned size = 0;
ULONG64 address = 0;
if (QtInfo::get(ctx).version > 4) {
const SymbolGroupValue adV = dV["QArrayData"];
const QtStringAddressData data = readQtStringAddressData(adV, 5);
size = data.size;
address = data.address;
} else {
size = dV["size"].intValue();
address = dV["data"].pointerValue();
}
if (size <= 0 || !address)
return rc;
if (size > 200)
size = 200;
rc.reserve(size);
const std::string charType = "char";
std::string errorMessage;
SymbolGroup *sg = n->symbolGroup();
for (int i = 0; i < (int)size; ++i, ++address) {
SymbolGroupNode *en = sg->addSymbol(std::string(), SymbolGroupValue::pointedToSymbolName(address, charType),
std::string(), &errorMessage);
if (!en) {
rc.clear();
return rc;
}
rc.push_back(ReferenceSymbolGroupNode::createArrayNode(i, en));
}
return rc;
}
/* AssignmentStringData: Helper struct used for assigning values
* to string classes. Contains an (allocated) data array with size for use
* with IDebugDataSpaced::FillVirtual() + string length information and
* provides a conversion function decodeString() to create the array
* depending on the argument format (blow up ASCII to UTF16 or vice versa). */
struct AssignmentStringData
{
explicit AssignmentStringData(size_t dataLengthIn, size_t stringLengthIn);
static AssignmentStringData decodeString(const char *begin, const char *end,
int valueEncoding, bool toUtf16);
static inline AssignmentStringData decodeString(const std::string &value,
int valueEncoding, bool toUtf16)
{ return decodeString(value.c_str(), value.c_str() + value.size(),
valueEncoding, toUtf16); }
unsigned char *data;
size_t dataLength;
size_t stringLength;
};
AssignmentStringData::AssignmentStringData(size_t dataLengthIn, size_t stringLengthIn) :
data(new unsigned char[dataLengthIn]), dataLength(dataLengthIn),
stringLength(stringLengthIn)
{
if (dataLength)
memset(data, 0, dataLength);
}
AssignmentStringData AssignmentStringData::decodeString(const char *begin, const char *end,
int valueEncoding, bool toUtf16)
{
if (toUtf16) { // Target is UTF16 consisting of unsigned short characters.
switch (valueEncoding) {
// Hex encoded ASCII/2 digits per char: Decode to plain characters and
// recurse to expand them.
case AssignHexEncoded: {
const AssignmentStringData decoded = decodeString(begin, end, AssignHexEncoded, false);
const char *source = reinterpret_cast<const char*>(decoded.data);
const AssignmentStringData utf16 = decodeString(source, source + decoded.stringLength,
AssignPlainValue, true);
delete [] decoded.data;
return utf16;
}
// Hex encoded UTF16: 4 hex digits per character: Decode sequence.
case AssignHexEncodedUtf16: {
const size_t stringLength = (end - begin) / 4;
AssignmentStringData result(sizeof(unsigned short) *(stringLength + 1), stringLength);
decodeHex(begin, end, result.data);
return result;
}
default:
break;
}
// Convert plain ASCII data to UTF16 by expanding.
const size_t stringLength = end - begin;
AssignmentStringData result(sizeof(unsigned short) *(stringLength + 1), stringLength);
const unsigned char *source = reinterpret_cast<const unsigned char *>(begin);
unsigned short *target = reinterpret_cast<unsigned short *>(result.data);
std::copy(source, source + stringLength, target);
return result;
} // toUtf16
switch (valueEncoding) {
case AssignHexEncoded: { // '0A5A'..2 digits per character
const size_t stringLength = (end - begin) / 2;
AssignmentStringData result(stringLength + 1, stringLength);
decodeHex(begin, end, result.data);
return result;
}
// Condense UTF16 characters to ASCII: Decode and use only every 2nd character
// (little endian, first byte)
case AssignHexEncodedUtf16: {
const AssignmentStringData decoded = decodeString(begin, end, AssignHexEncoded, false);
const size_t stringLength = decoded.stringLength / 2;
const AssignmentStringData result(stringLength + 1, stringLength);
const unsigned char *sourceEnd = decoded.data + decoded.stringLength;
unsigned char *target = result.data;
for (const unsigned char *source = decoded.data; source < sourceEnd; source += 2)
*target++ = *source;
delete [] decoded.data;
return result;
}
break;
default:
break;
}
// Plain 0-terminated copy
const size_t stringLength = end - begin;
AssignmentStringData result(stringLength + 1, stringLength);
memcpy(result.data, begin, stringLength);
return result;
}
// Assignment helpers
static inline std::string msgAssignStringFailed(const std::string &value, int errorCode)
{
std::ostringstream estr;
estr << "Unable to assign a string of " << value.size() << " bytes: Error " << errorCode;
return estr.str();
}
/* QString assign helper: If QString instance has sufficiently allocated,
* memory, write the data. Else invoke 'QString::resize' and
* recurse (since 'd' might become invalid). This works for QString with UTF16
* data and for QByteArray with ASCII data due to the similar member
* names and both using a terminating '\0' w_char/byte. */
static int assignQStringI(SymbolGroupNode *n, const char *className,
const AssignmentStringData &data,
const SymbolGroupValueContext &ctx,
bool doAlloc = true)
{
const SymbolGroupValue v(n, ctx);
SymbolGroupValue d = v["d"];
if (!d)
return 1;
const QtInfo &qtInfo = QtInfo::get(ctx);
// Check the size, re-allocate if required.
const QtStringAddressData addressData = readQtStringAddressData(d, qtInfo.version);
if (!addressData.address)
return 9;
const bool needRealloc = addressData.allocated < data.stringLength;
if (needRealloc) {
if (!doAlloc) // Calling re-alloc failed somehow.
return 3;
std::ostringstream callStr;
const std::string funcName
= qtInfo.prependQtCoreModule(std::string(className) + "::resize");
callStr << funcName << '(' << std::hex << std::showbase
<< v.address() << ',' << data.stringLength << ')';
std::wstring wOutput;
std::string errorMessage;
return ExtensionContext::instance().call(callStr.str(), &wOutput, &errorMessage) ?
assignQStringI(n, className, data, ctx, false) : 5;
}
// Write data.
if (!SymbolGroupValue::writeMemory(v.context().dataspaces,
addressData.address, data.data,
ULONG(data.dataLength)))
return 11;
// Correct size unless we re-allocated
if (!needRealloc) {
const SymbolGroupValue size = d["size"];
if (!size || !size.node()->assign(toString(data.stringLength)))
return 17;
}
return 0;
}
// QString assignment
static inline bool assignQString(SymbolGroupNode *n,
int valueEncoding, const std::string &value,
const SymbolGroupValueContext &ctx,
std::string *errorMessage)
{
const AssignmentStringData utf16 = AssignmentStringData::decodeString(value, valueEncoding, true);
const int errorCode = assignQStringI(n, "QString", utf16, ctx);
delete [] utf16.data;
if (errorCode) {
*errorMessage = msgAssignStringFailed(value, errorCode);
return false;
}
return true;
}
// QByteArray assignment
static inline bool assignQByteArray(SymbolGroupNode *n,
int valueEncoding, const std::string &value,
const SymbolGroupValueContext &ctx,
std::string *errorMessage)
{
const AssignmentStringData data = AssignmentStringData::decodeString(value, valueEncoding, false);
const int errorCode = assignQStringI(n, "QByteArray", data, ctx);
delete [] data.data;
if (errorCode) {
*errorMessage = msgAssignStringFailed(value, errorCode);
return false;
}
return true;
}
// Helper to assign character data to std::string or std::wstring.
static inline int assignStdStringI(SymbolGroupNode *n, int type,
const AssignmentStringData &data,
const SymbolGroupValueContext &ctx)
{
/* We do not reallocate and just write to the allocated buffer
* (internal small buffer or _Ptr depending on reserved) provided sufficient
* memory is there since it is apparently not possible to call the template
* function std::string::resize().
* See the dumpStd_W_String() how to figure out if the internal buffer
* or an allocated array is used. */
const SymbolGroupValue v(n, ctx);
SymbolGroupValue bx = v[unsigned(0)]["_Bx"];
SymbolGroupValue size;
int reserved = 0;
if (bx) { // MSVC2010
size = v[unsigned(0)]["_Mysize"];
reserved = v[unsigned(0)]["_Myres"].intValue();
} else { // MSVC2008
bx = v["_Bx"];
size = v["_Mysize"];
reserved = v["_Myres"].intValue();
}
if (reserved < 0 || !size || !bx)
return 42;
if (reserved <= (int)data.stringLength)
return 1; // Insufficient memory.
// Copy data: 'Buf' array for small strings, else pointer 'Ptr'.
const int bufSize = type == KT_StdString ? 16 : 8; // see basic_string.
const ULONG64 address = (bufSize <= reserved) ?
bx["_Ptr"].pointerValue() : bx["_Buf"].address();
if (!address)
return 3;
if (!SymbolGroupValue::writeMemory(v.context().dataspaces,
address, data.data, ULONG(data.dataLength)))
return 7;
// Correct size
if (!size.node()->assign(toString(data.stringLength)))
return 13;
return 0;
}
// assignment of std::string assign via ASCII, std::wstring via UTF16
static inline bool assignStdString(SymbolGroupNode *n,
int type, int valueEncoding, const std::string &value,
const SymbolGroupValueContext &ctx,
std::string *errorMessage)
{
const bool toUtf16 = type == KT_StdWString;
const AssignmentStringData data = AssignmentStringData::decodeString(value, valueEncoding,
toUtf16);
const int errorCode = assignStdStringI(n, type, data, ctx);
delete [] data.data;
if (errorCode) {
*errorMessage = msgAssignStringFailed(value, errorCode);
return false;
}
return true;
}
bool assignType(SymbolGroupNode *n, int valueEncoding, const std::string &value,
const SymbolGroupValueContext &ctx, std::string *errorMessage)
{
switch (n->dumperType()) {
case KT_QString:
return assignQString(n, valueEncoding, value, ctx, errorMessage);
case KT_QByteArray:
return assignQByteArray(n, valueEncoding, value, ctx, errorMessage);
case KT_StdString:
case KT_StdWString:
return assignStdString(n, n->dumperType(), valueEncoding, value, ctx, errorMessage);
default:
break;
}
return false;
}
std::vector<AbstractSymbolGroupNode *>
dumpComplexType(SymbolGroupNode *n, int type, void *specialInfo,
const SymbolGroupValueContext &ctx)
{
std::vector<AbstractSymbolGroupNode *> rc;
if (!(type & KT_HasComplexDumper))
return rc;
switch (type) {
case KT_QByteArray:
rc = complexDumpQByteArray(n, ctx);
break;
case KT_QWidget: // Special info by simple dumper is the QWidgetPrivate node
case KT_QWindow: // Special info by simple dumper is the QWindowPrivate node
case KT_QObject: // Special info by simple dumper is the QObjectPrivate node
if (specialInfo) {
SymbolGroupNode *qObjectPrivateNode = reinterpret_cast<SymbolGroupNode *>(specialInfo);
rc.push_back(new ReferenceSymbolGroupNode("d", "d", qObjectPrivateNode));
}
break;
case KT_QVariant: // Special info by simple dumper is the container (stringlist, map,etc)
if (specialInfo) {
SymbolGroupNode *containerNode = reinterpret_cast<SymbolGroupNode *>(specialInfo);
rc.push_back(new ReferenceSymbolGroupNode("children", "children", containerNode));
}
case KT_QSharedPointer: // Special info by simple dumper is the value
if (specialInfo) {
SymbolGroupNode *valueNode = reinterpret_cast<SymbolGroupNode *>(specialInfo);
rc.push_back(new ReferenceSymbolGroupNode("value", "value", valueNode));
}
break;
default:
break;
}
if (SymbolGroupValue::verbose) {
DebugPrint dp;
dp << "<dumpComplexType" << rc.size() << ' ';
for (VectorIndexType i = 0; i < rc.size() ; ++i)
dp << i << ' ' << rc.at(i)->name();
}
return rc;
}
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