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Pawel Polanski authoredReviewed-by: hjk
Pawel Polanski authoredReviewed-by: hjk
gdbengine.cpp 163.71 KiB
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
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**************************************************************************/
#define QT_NO_CAST_FROM_ASCII
#include "gdbengine.h"
#include "debuggerstartparameters.h"
#include "disassemblerlines.h"
#include "attachgdbadapter.h"
#include "coregdbadapter.h"
#include "localplaingdbadapter.h"
#include "termgdbadapter.h"
#include "remotegdbserveradapter.h"
#include "remoteplaingdbadapter.h"
#include "trkgdbadapter.h"
#include "tcftrkgdbadapter.h"
#include "debuggeractions.h"
#include "debuggerconstants.h"
#include "debuggercore.h"
#include "debuggerplugin.h"
#include "debuggerrunner.h"
#include "debuggerstringutils.h"
#include "debuggertooltip.h"
#include "disassembleragent.h"
#include "gdbmi.h"
#include "gdboptionspage.h"
#include "memoryagent.h"
#include "watchutils.h"
#include "breakhandler.h"
#include "moduleshandler.h"
#include "registerhandler.h"
#include "snapshothandler.h"
#include "sourcefileshandler.h"
#include "stackhandler.h"
#include "threadshandler.h"
#include "watchhandler.h"
#include "logwindow.h"
#include <coreplugin/icore.h>
#include <projectexplorer/toolchain.h>
#include <texteditor/itexteditor.h>
#include <utils/qtcassert.h>
#include <QtCore/QCoreApplication>
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
#include <QtCore/QMetaObject>
#include <QtCore/QTime>
#include <QtCore/QTimer>
#include <QtCore/QTemporaryFile>
#include <QtCore/QTextStream>
#include <QtGui/QAction>
#include <QtGui/QDialogButtonBox>
#include <QtGui/QLabel>
#include <QtGui/QMainWindow>
#include <QtGui/QMessageBox>
#include <QtGui/QPushButton>
#ifdef Q_OS_UNIX
#include <unistd.h>
#include <dlfcn.h>
#endif
#include <ctype.h>
namespace Debugger {
namespace Internal {
//#define DEBUG_PENDING 1
static const char winPythonVersionC[] = "python2.5";
#if DEBUG_PENDING
# define PENDING_DEBUG(s) qDebug() << s
#else
# define PENDING_DEBUG(s)
#endif
#define PENDING_DEBUGX(s) qDebug() << s
#define CB(callback) &GdbEngine::callback, STRINGIFY(callback)
QByteArray GdbEngine::tooltipIName(const QString &exp)
{
return "tooltip." + exp.toLatin1().toHex();
}
static bool stateAcceptsGdbCommands(DebuggerState state)
{
switch (state) {
case EngineSetupRequested:
case EngineSetupOk:
case EngineSetupFailed:
case InferiorUnrunnable:
case InferiorSetupRequested:
case InferiorSetupFailed:
case EngineRunRequested:
case InferiorRunRequested:
case InferiorRunOk:
case InferiorStopRequested:
case InferiorStopOk:
case InferiorShutdownRequested:
case EngineShutdownRequested:
case InferiorShutdownOk:
case InferiorShutdownFailed: return true;
case DebuggerNotReady:
case InferiorStopFailed:
case EngineRunFailed:
case InferiorRunFailed:
case EngineShutdownOk:
case EngineShutdownFailed:
case DebuggerFinished:
return false;
}
return false;
}
static int ¤tToken()
{
static int token = 0;
return token;
}
static QByteArray parsePlainConsoleStream(const GdbResponse &response)
{
GdbMi output = response.data.findChild("consolestreamoutput");
QByteArray out = output.data();
// FIXME: proper decoding needed
if (out.endsWith("\\n"))
out.chop(2);
while (out.endsWith('\n') || out.endsWith(' '))
out.chop(1);
int pos = out.indexOf(" = ");
return out.mid(pos + 3);
}
///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////
GdbEngine::GdbEngine(const DebuggerStartParameters &startParameters,
DebuggerEngine *masterEngine)
: DebuggerEngine(startParameters, masterEngine)
{
setObjectName(QLatin1String("GdbEngine"));
m_busy = false;
m_gdbAdapter = 0;
m_debuggingHelperState = DebuggingHelperUninitialized;
m_gdbVersion = 100;
m_gdbBuildVersion = -1;
m_isMacGdb = false;
m_hasPython = false;
m_registerNamesListed = false;
m_hasInferiorThreadList = false;
m_sourcesListUpdating = false;
m_oldestAcceptableToken = -1;
m_outputCodec = QTextCodec::codecForLocale();
m_pendingWatchRequests = 0;
m_pendingBreakpointRequests = 0;
m_commandsDoneCallback = 0;
m_stackNeeded = false;
invalidateSourcesList();
m_gdbAdapter = createAdapter();
m_commandTimer.setSingleShot(true);
connect(&m_commandTimer, SIGNAL(timeout()), SLOT(commandTimeout()));
connect(debuggerCore()->action(AutoDerefPointers), SIGNAL(valueChanged(QVariant)),
SLOT(reloadLocals()));
connect(debuggerCore()->action(SortStructMembers), SIGNAL(valueChanged(QVariant)), SLOT(reloadLocals()));
connect(debuggerCore()->action(CreateFullBacktrace), SIGNAL(triggered()),
SLOT(createFullBacktrace()));
}
DebuggerStartMode GdbEngine::startMode() const
{
return startParameters().startMode;
}
AbstractGdbProcess *GdbEngine::gdbProc() const
{
return m_gdbAdapter->gdbProc();
}
GdbEngine::~GdbEngine()
{
// Prevent sending error messages afterwards.
if (m_gdbAdapter)
disconnect(gdbProc(), 0, this, 0);
delete m_gdbAdapter;
m_gdbAdapter = 0;
}
QString GdbEngine::errorMessage(QProcess::ProcessError error)
{
switch (error) {
case QProcess::FailedToStart:
return tr("The Gdb process failed to start. Either the "
"invoked program '%1' is missing, or you may have insufficient "
"permissions to invoke the program.\n%2")
.arg(m_gdb, gdbProc()->errorString());
case QProcess::Crashed:
return tr("The Gdb process crashed some time after starting "
"successfully.");
case QProcess::Timedout:
return tr("The last waitFor...() function timed out. "
"The state of QProcess is unchanged, and you can try calling "
"waitFor...() again.");
case QProcess::WriteError:
return tr("An error occurred when attempting to write "
"to the Gdb process. For example, the process may not be running, "
"or it may have closed its input channel.");
case QProcess::ReadError:
return tr("An error occurred when attempting to read from "
"the Gdb process. For example, the process may not be running.");
default:
return tr("An unknown error in the Gdb process occurred. ");
}
}
#if 0
static void dump(const char *first, const char *middle, const QString & to)
{
QByteArray ba(first, middle - first);
Q_UNUSED(to)
// note that qDebug cuts off output after a certain size... (bug?)
qDebug("\n>>>>> %s\n%s\n====\n%s\n<<<<<\n",
qPrintable(currentTime()),
qPrintable(QString(ba).trimmed()),
qPrintable(to.trimmed()));
//qDebug() << "";
//qDebug() << qPrintable(currentTime())
// << " Reading response: " << QString(ba).trimmed() << "\n";
}
#endif
void GdbEngine::readDebugeeOutput(const QByteArray &data)
{
QString msg = m_outputCodec->toUnicode(data.constData(), data.length(), &m_outputCodecState);
showMessage(msg, AppStuff);
}
void GdbEngine::handleResponse(const QByteArray &buff)
{
showMessage(QString::fromLocal8Bit(buff, buff.length()), LogOutput);
#if 0
static QTime lastTime;
qDebug() // << "#### start response handling #### "
<< lastTime.msecsTo(QTime::currentTime()) << "ms,"
<< "buf:" << buff.left(1500) << "..."
//<< "buf:" << buff
<< "size:" << buff.size();
lastTime = QTime::currentTime();
#else
//qDebug() << "buf:" << buff;
#endif
if (buff.isEmpty() || buff == "(gdb) ")
return;
const char *from = buff.constData();
const char *to = from + buff.size();
const char *inner;
int token = -1;
// token is a sequence of numbers
for (inner = from; inner != to; ++inner)
if (*inner < '0' || *inner > '9')
break;
if (from != inner) {
token = QByteArray(from, inner - from).toInt();
from = inner;
//qDebug() << "found token" << token;
}
// next char decides kind of response
const char c = *from++;
//qDebug() << "CODE:" << c;
switch (c) {
case '*':
case '+':
case '=': {
QByteArray asyncClass;
for (; from != to; ++from) {
const char c = *from;
if (!isNameChar(c))
break;
asyncClass += *from;
}
//qDebug() << "ASYNCCLASS" << asyncClass;
GdbMi result;
while (from != to) {
GdbMi data;
if (*from != ',') {
// happens on archer where we get
// 23^running <NL> *running,thread-id="all" <NL> (gdb)
result.m_type = GdbMi::Tuple;
break;
}
++from; // skip ','
data.parseResultOrValue(from, to);
if (data.isValid()) {
//qDebug() << "parsed result:" << data.toString();
result.m_children += data;
result.m_type = GdbMi::Tuple;
}
} if (asyncClass == "stopped") {
handleStopResponse(result);
m_pendingLogStreamOutput.clear();
m_pendingConsoleStreamOutput.clear();
} else if (asyncClass == "running") {
// Archer has 'thread-id="all"' here
} else if (asyncClass == "library-loaded") {
// Archer has 'id="/usr/lib/libdrm.so.2",
// target-name="/usr/lib/libdrm.so.2",
// host-name="/usr/lib/libdrm.so.2",
// symbols-loaded="0"
QByteArray id = result.findChild("id").data();
if (!id.isEmpty())
showStatusMessage(tr("Library %1 loaded").arg(_(id)), 1000);
progressPing();
invalidateSourcesList();
} else if (asyncClass == "library-unloaded") {
// Archer has 'id="/usr/lib/libdrm.so.2",
// target-name="/usr/lib/libdrm.so.2",
// host-name="/usr/lib/libdrm.so.2"
QByteArray id = result.findChild("id").data();
progressPing();
showStatusMessage(tr("Library %1 unloaded").arg(_(id)), 1000);
invalidateSourcesList();
} else if (asyncClass == "thread-group-added") {
// 7.1-symbianelf has "{id="i1"}"
} else if (asyncClass == "thread-group-created"
|| asyncClass == "thread-group-started") {
// Archer had only "{id="28902"}" at some point of 6.8.x.
// *-started seems to be standard in 7.1, but in early
// 7.0.x, there was a *-created instead.
progressPing();
// 7.1.50 has thread-group-started,id="i1",pid="3529"
QByteArray id = result.findChild("id").data();
showStatusMessage(tr("Thread group %1 created").arg(_(id)), 1000);
int pid = id.toInt();
if (!pid) {
id = result.findChild("pid").data();
pid = id.toInt();
}
if (pid)
notifyInferiorPid(pid);
} else if (asyncClass == "thread-created") {
//"{id="1",group-id="28902"}"
QByteArray id = result.findChild("id").data();
showStatusMessage(tr("Thread %1 created").arg(_(id)), 1000);
} else if (asyncClass == "thread-group-exited") {
// Archer has "{id="28902"}"
QByteArray id = result.findChild("id").data();
showStatusMessage(tr("Thread group %1 exited").arg(_(id)), 1000);
} else if (asyncClass == "thread-exited") {
//"{id="1",group-id="28902"}"
QByteArray id = result.findChild("id").data();
QByteArray groupid = result.findChild("group-id").data();
showStatusMessage(tr("Thread %1 in group %2 exited")
.arg(_(id)).arg(_(groupid)), 1000);
} else if (asyncClass == "thread-selected") {
QByteArray id = result.findChild("id").data();
showStatusMessage(tr("Thread %1 selected").arg(_(id)), 1000);
//"{id="2"}"
} else if (m_isMacGdb && asyncClass == "shlibs-updated") {
// Apple's gdb announces updated libs.
invalidateSourcesList();
} else if (m_isMacGdb && asyncClass == "shlibs-added") {
// Apple's gdb announces added libs.
// {shlib-info={num="2", name="libmathCommon.A_debug.dylib",
// kind="-", dyld-addr="0x7f000", reason="dyld", requested-state="Y",
// state="Y", path="/usr/lib/system/libmathCommon.A_debug.dylib",
// description="/usr/lib/system/libmathCommon.A_debug.dylib",
// loaded_addr="0x7f000", slide="0x7f000", prefix=""}} invalidateSourcesList();
} else if (m_isMacGdb && asyncClass == "resolve-pending-breakpoint") {
// Apple's gdb announces resolved breakpoints.
// new_bp="1",pended_bp="1",new_expr="\"gdbengine.cpp\":1584",
// bkpt={number="1",type="breakpoint",disp="keep",enabled="y",
// addr="0x0000000115cc3ddf",func="foo()",file="../foo.cpp",
// line="1584",shlib="/../libFoo_debug.dylib",times="0"}
const GdbMi bkpt = result.findChild("bkpt");
const int number = bkpt.findChild("number").data().toInt();
BreakpointId id = breakHandler()->findBreakpointByNumber(number);
updateBreakpointDataFromOutput(id, bkpt);
} else {
qDebug() << "IGNORED ASYNC OUTPUT"
<< asyncClass << result.toString();
}
break;
}
case '~': {
QByteArray data = GdbMi::parseCString(from, to);
m_pendingConsoleStreamOutput += data;
// Parse pid from noise.
if (!inferiorPid()) {
// Linux/Mac gdb: [New [Tt]hread 0x545 (LWP 4554)]
static QRegExp re1(_("New .hread 0x[0-9a-f]+ \\(LWP ([0-9]*)\\)"));
// MinGW 6.8: [New thread 2437.0x435345]
static QRegExp re2(_("New .hread ([0-9]+)\\.0x[0-9a-f]*"));
// Mac: [Switching to process 9294 local thread 0x2e03] or
// [Switching to process 31773]
static QRegExp re3(_("Switching to process ([0-9]+)"));
QTC_ASSERT(re1.isValid() && re2.isValid(), return);
if (re1.indexIn(_(data)) != -1)
maybeHandleInferiorPidChanged(re1.cap(1));
else if (re2.indexIn(_(data)) != -1)
maybeHandleInferiorPidChanged(re2.cap(1));
else if (re3.indexIn(_(data)) != -1)
maybeHandleInferiorPidChanged(re3.cap(1));
}
// Show some messages to give the impression something happens.
if (data.startsWith("Reading symbols from ")) {
showStatusMessage(tr("Reading %1...").arg(_(data.mid(21))), 1000);
progressPing();
invalidateSourcesList();
} else if (data.startsWith("[New ") || data.startsWith("[Thread ")) {
if (data.endsWith('\n'))
data.chop(1);
progressPing();
showStatusMessage(_(data), 1000);
}
break;
}
case '@': {
readDebugeeOutput(GdbMi::parseCString(from, to));
break;
}
case '&': {
QByteArray data = GdbMi::parseCString(from, to);
m_pendingLogStreamOutput += data;
// On Windows, the contents seem to depend on the debugger
// version and/or OS version used.
if (data.startsWith("warning:"))
showMessage(_(data.mid(9)), AppStuff); // Cut "warning: "
break;
}
case '^': { GdbResponse response;
response.token = token;
for (inner = from; inner != to; ++inner)
if (*inner < 'a' || *inner > 'z')
break;
QByteArray resultClass = QByteArray::fromRawData(from, inner - from);
if (resultClass == "done") {
response.resultClass = GdbResultDone;
} else if (resultClass == "running") {
response.resultClass = GdbResultRunning;
} else if (resultClass == "connected") {
response.resultClass = GdbResultConnected;
} else if (resultClass == "error") {
response.resultClass = GdbResultError;
} else if (resultClass == "exit") {
response.resultClass = GdbResultExit;
} else {
response.resultClass = GdbResultUnknown;
}
from = inner;
if (from != to) {
if (*from == ',') {
++from;
response.data.parseTuple_helper(from, to);
response.data.m_type = GdbMi::Tuple;
response.data.m_name = "data";
} else {
// Archer has this.
response.data.m_type = GdbMi::Tuple;
response.data.m_name = "data";
}
}
//qDebug() << "\nLOG STREAM:" + m_pendingLogStreamOutput;
//qDebug() << "\nCONSOLE STREAM:" + m_pendingConsoleStreamOutput;
response.data.setStreamOutput("logstreamoutput",
m_pendingLogStreamOutput);
response.data.setStreamOutput("consolestreamoutput",
m_pendingConsoleStreamOutput);
m_pendingLogStreamOutput.clear();
m_pendingConsoleStreamOutput.clear();
handleResultRecord(&response);
break;
}
default: {
qDebug() << "UNKNOWN RESPONSE TYPE" << c;
break;
}
}
}
void GdbEngine::readGdbStandardError()
{
QByteArray err = gdbProc()->readAllStandardError();
showMessage(_("UNEXPECTED GDB STDERR: " + err));
if (err == "Undefined command: \"bb\". Try \"help\".\n")
return;
if (err.startsWith("BFD: reopening"))
return;
qWarning() << "Unexpected gdb stderr:" << err;
}
void GdbEngine::readGdbStandardOutput()
{
m_commandTimer.start(); // Restart timer.
int newstart = 0;
int scan = m_inbuffer.size();
m_inbuffer.append(gdbProc()->readAllStandardOutput());
// This can trigger when a dialog starts a nested event loop.
if (m_busy)
return;
while (newstart < m_inbuffer.size()) {
int start = newstart;
int end = m_inbuffer.indexOf('\n', scan);
if (end < 0) {
m_inbuffer.remove(0, start);
return;
}
newstart = end + 1;
scan = newstart;
if (end == start)
continue;
# if defined(Q_OS_WIN)
if (m_inbuffer.at(end - 1) == '\r') {
--end;
if (end == start)
continue;
}
# endif
m_busy = true;
handleResponse(QByteArray::fromRawData(m_inbuffer.constData() + start, end - start));
m_busy = false;
}
m_inbuffer.clear();
}
void GdbEngine::interruptInferior()
{
QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state(); return);
showStatusMessage(tr("Stop requested..."), 5000);
showMessage(_("TRYING TO INTERRUPT INFERIOR"));
m_gdbAdapter->interruptInferior();
}
void GdbEngine::interruptInferiorTemporarily()
{
foreach (const GdbCommand &cmd, m_commandsToRunOnTemporaryBreak) {
if (cmd.flags & LosesChild) {
notifyInferiorIll();
return;
}
}
requestInterruptInferior();
}
void GdbEngine::maybeHandleInferiorPidChanged(const QString &pid0)
{
const qint64 pid = pid0.toLongLong();
if (pid == 0) {
showMessage(_("Cannot parse PID from %1").arg(pid0));
return;
}
if (pid == inferiorPid())
return;
showMessage(_("FOUND PID %1").arg(pid));
notifyInferiorPid(pid);
}
void GdbEngine::postCommand(const QByteArray &command, AdapterCallback callback,
const char *callbackName, const QVariant &cookie){
postCommand(command, NoFlags, callback, callbackName, cookie);
}
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
AdapterCallback callback,
const char *callbackName, const QVariant &cookie)
{
GdbCommand cmd;
cmd.command = command;
cmd.flags = flags;
cmd.adapterCallback = callback;
cmd.callbackName = callbackName;
cmd.cookie = cookie;
postCommandHelper(cmd);
}
void GdbEngine::postCommand(const QByteArray &command, GdbCommandCallback callback,
const char *callbackName, const QVariant &cookie)
{
postCommand(command, NoFlags, callback, callbackName, cookie);
}
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
GdbCommandCallback callback, const char *callbackName,
const QVariant &cookie)
{
GdbCommand cmd;
cmd.command = command;
cmd.flags = flags;
cmd.callback = callback;
cmd.callbackName = callbackName;
cmd.cookie = cookie;
postCommandHelper(cmd);
}
void GdbEngine::postCommandHelper(const GdbCommand &cmd)
{
if (!stateAcceptsGdbCommands(state())) {
PENDING_DEBUG(_("NO GDB PROCESS RUNNING, CMD IGNORED: " + cmd.command));
showMessage(_("NO GDB PROCESS RUNNING, CMD IGNORED: %1 %2")
.arg(_(cmd.command)).arg(state()));
return;
}
if (cmd.flags & RebuildWatchModel) {
++m_pendingWatchRequests;
PENDING_DEBUG(" WATCH MODEL:" << cmd.command << "=>" << cmd.callbackName
<< "INCREMENTS PENDING TO" << m_pendingWatchRequests);
} else if (cmd.flags & RebuildBreakpointModel) {
++m_pendingBreakpointRequests;
PENDING_DEBUG(" BRWAKPOINT MODEL:" << cmd.command << "=>" << cmd.callbackName
<< "INCREMENTS PENDING TO" << m_pendingBreakpointRequests);
} else {
PENDING_DEBUG(" OTHER (IN):" << cmd.command << "=>" << cmd.callbackName
<< "LEAVES PENDING WATCH AT" << m_pendingWatchRequests
<< "LEAVES PENDING BREAKPOINT AT" << m_pendingBreakpointRequests);
}
// FIXME: clean up logic below
if (cmd.flags & Immediate) {
// This should always be sent.
flushCommand(cmd);
} else if ((cmd.flags & NeedsStop)
|| !m_commandsToRunOnTemporaryBreak.isEmpty()) {
if (state() == InferiorStopOk || state() == InferiorUnrunnable
|| state() == InferiorSetupRequested || state() == EngineSetupOk
|| state() == InferiorShutdownRequested) {
// Can be safely sent now.
flushCommand(cmd); } else {
// Queue the commands that we cannot send at once.
showMessage(_("QUEUING COMMAND " + cmd.command));
m_commandsToRunOnTemporaryBreak.append(cmd);
if (state() == InferiorStopRequested) {
if (cmd.flags & LosesChild) {
notifyInferiorIll();
}
showMessage(_("CHILD ALREADY BEING INTERRUPTED. STILL HOPING."));
// Calling shutdown() here breaks all situations where two
// NeedsStop commands are issued in quick succession.
} else if (state() == InferiorRunOk) {
showStatusMessage(tr("Stopping temporarily"), 1000);
interruptInferiorTemporarily();
} else {
qDebug() << "ATTEMPTING TO QUEUE COMMAND "
<< cmd.command << "IN INAPPROPRIATE STATE" << state();
}
}
} else if (!cmd.command.isEmpty()) {
flushCommand(cmd);
}
}
void GdbEngine::flushQueuedCommands()
{
showStatusMessage(tr("Processing queued commands"), 1000);
while (!m_commandsToRunOnTemporaryBreak.isEmpty()) {
GdbCommand cmd = m_commandsToRunOnTemporaryBreak.takeFirst();
showMessage(_("RUNNING QUEUED COMMAND " + cmd.command + ' '
+ cmd.callbackName));
flushCommand(cmd);
}
}
void GdbEngine::flushCommand(const GdbCommand &cmd0)
{
if (!stateAcceptsGdbCommands(state())) {
showMessage(_(cmd0.command), LogInput);
showMessage(_("GDB PROCESS ACCEPTS NO CMD IN STATE %1 ").arg(state()));
return;
}
QTC_ASSERT(gdbProc()->state() == QProcess::Running, return;)
++currentToken();
GdbCommand cmd = cmd0;
cmd.postTime = QTime::currentTime();
m_cookieForToken[currentToken()] = cmd;
if (cmd.flags & ConsoleCommand)
cmd.command = "-interpreter-exec console \"" + cmd.command + '"';
cmd.command = QByteArray::number(currentToken()) + cmd.command;
showMessage(_(cmd.command), LogInput);
m_gdbAdapter->write(cmd.command + "\r\n");
// Start Watchdog.
if (m_commandTimer.interval() <= 20000)
m_commandTimer.setInterval(commandTimeoutTime());
// The process can die for external reason between the "-gdb-exit" was
// sent and a response could be retrieved. We don't want the watchdog
// to bark in that case since the only possible outcome is a dead
// process anyway.
if (!cmd.command.endsWith("-gdb-exit"))
m_commandTimer.start();
//if (cmd.flags & LosesChild)
// notifyInferiorIll();
}
int GdbEngine::commandTimeoutTime() const
{
int time = debuggerCore()->action(GdbWatchdogTimeout)->value().toInt();
return 1000 * qMax(40, time);
}
void GdbEngine::commandTimeout()
{
QList<int> keys = m_cookieForToken.keys();
qSort(keys);
bool killIt = false;
foreach (int key, keys) {
const GdbCommand &cmd = m_cookieForToken.value(key);
if (!(cmd.flags & NonCriticalResponse))
killIt = true;
QByteArray msg = QByteArray::number(key);
msg += ": " + cmd.command + " => ";
msg += cmd.callbackName ? cmd.callbackName : "<unnamed callback>";
showMessage(_(msg));
}
if (killIt) {
showMessage(_("TIMED OUT WAITING FOR GDB REPLY. COMMANDS STILL IN PROGRESS:"));
int timeOut = m_commandTimer.interval();
//m_commandTimer.stop();
const QString msg = tr("The gdb process has not responded "
"to a command within %1 seconds. This could mean it is stuck "
"in an endless loop or taking longer than expected to perform "
"the operation.\nYou can choose between waiting "
"longer or abort debugging.").arg(timeOut / 1000);
QMessageBox *mb = showMessageBox(QMessageBox::Critical,
tr("Gdb not responding"), msg,
QMessageBox::Ok | QMessageBox::Cancel);
mb->button(QMessageBox::Cancel)->setText(tr("Give gdb more time"));
mb->button(QMessageBox::Ok)->setText(tr("Stop debugging"));
if (mb->exec() == QMessageBox::Ok) {
showMessage(_("KILLING DEBUGGER AS REQUESTED BY USER"));
// This is an undefined state, so we just pull the emergency brake.
watchHandler()->endCycle();
gdbProc()->kill();
} else {
showMessage(_("CONTINUE DEBUGGER AS REQUESTED BY USER"));
}
} else {
showMessage(_("\nNON-CRITICAL TIMEOUT\n"));
}
}
void GdbEngine::handleResultRecord(GdbResponse *response)
{
//qDebug() << "TOKEN:" << response.token
// << " ACCEPTABLE:" << m_oldestAcceptableToken;
//qDebug() << "\nRESULT" << response.token << response.toString();
int token = response->token;
if (token == -1)
return;
if (!m_cookieForToken.contains(token)) {
// In theory this should not happen (rather the error should be
// reported in the "first" response to the command) in practice it
// does. We try to handle a few situations we are aware of gracefully.
// Ideally, this code should not be present at all.
showMessage(_("COOKIE FOR TOKEN %1 ALREADY EATEN. "
"TWO RESPONSES FOR ONE COMMAND?").arg(token));
if (response->resultClass == GdbResultError) {
QByteArray msg = response->data.findChild("msg").data();
if (msg == "Cannot find new threads: generic error") {
// Handle a case known to occur on Linux/gdb 6.8 when debugging moc
// with helpers enabled. In this case we get a second response with
// msg="Cannot find new threads: generic error" showMessage(_("APPLYING WORKAROUND #1"));
showMessageBox(QMessageBox::Critical,
tr("Executable failed"), QString::fromLocal8Bit(msg));
showStatusMessage(tr("Process failed to start"));
//shutdown();
notifyInferiorIll();
} else if (msg == "\"finish\" not meaningful in the outermost frame.") {
// Handle a case known to appear on gdb 6.4 symbianelf when
// the stack is cut due to access to protected memory.
//showMessage(_("APPLYING WORKAROUND #2"));
notifyInferiorStopOk();
} else if (msg.startsWith("Cannot find bounds of current function")) {
// Happens when running "-exec-next" in a function for which
// there is no debug information. Divert to "-exec-next-step"
showMessage(_("APPLYING WORKAROUND #3"));
notifyInferiorStopOk();
executeNextI();
} else if (msg.startsWith("Couldn't get registers: No such process.")) {
// Happens on archer-tromey-python 6.8.50.20090910-cvs
// There might to be a race between a process shutting down
// and library load messages.
showMessage(_("APPLYING WORKAROUND #4"));
notifyInferiorStopOk();
//notifyInferiorIll();
//showStatusMessage(tr("Executable failed: %1")
// .arg(QString::fromLocal8Bit(msg)));
//shutdown();
//showMessageBox(QMessageBox::Critical,
// tr("Executable failed"), QString::fromLocal8Bit(msg));
} else if (msg.contains("Cannot insert breakpoint")) {
// For breakpoints set by address to non-existent addresses we
// might get something like "6^error,msg="Warning:\nCannot insert
// breakpoint 3.\nError accessing memory address 0x34592327:
// Input/output error.\nCannot insert breakpoint 4.\nError
// accessing memory address 0x34592335: Input/output error.\n".
// This should not stop us from proceeding.
// Most notably, that happens after a "6^running" and "*running"
// We are probably sitting at _start and can't proceed as
// long as the breakpoints are enabled.
// FIXME: Should we silently disable the offending breakpoints?
showMessage(_("APPLYING WORKAROUND #5"));
showMessageBox(QMessageBox::Critical,
tr("Setting breakpoints failed"), QString::fromLocal8Bit(msg));
QTC_ASSERT(state() == InferiorRunOk, /**/);
notifyInferiorSpontaneousStop();
notifyEngineIll();
} else {
showMessageBox(QMessageBox::Critical,
tr("Executable failed"), QString::fromLocal8Bit(msg));
showStatusMessage(tr("Executable failed: %1")
.arg(QString::fromLocal8Bit(msg)));
}
}
return;
}
GdbCommand cmd = m_cookieForToken.take(token);
if (debuggerCore()->boolSetting(LogTimeStamps)) {
showMessage(_("Response time: %1: %2 s")
.arg(_(cmd.command))
.arg(cmd.postTime.msecsTo(QTime::currentTime()) / 1000.),
LogTime);
}
if (response->token < m_oldestAcceptableToken && (cmd.flags & Discardable)) {
//showMessage(_("### SKIPPING OLD RESULT") + response.toString());
return;
}
response->cookie = cmd.cookie;
bool isExpectedResult =
(response->resultClass == GdbResultError) // Can always happen.
|| (response->resultClass == GdbResultRunning && (cmd.flags & RunRequest))
|| (response->resultClass == GdbResultExit && (cmd.flags & ExitRequest))
|| (response->resultClass == GdbResultDone);
// GdbResultDone can almost "always" happen. Known examples are:
// (response->resultClass == GdbResultDone && cmd.command == "continue")
// Happens with some incarnations of gdb 6.8 for "jump to line"
// (response->resultClass == GdbResultDone && cmd.command.startsWith("jump"))
// (response->resultClass == GdbResultDone && cmd.command.startsWith("detach"))
// Happens when stepping finishes very quickly and issues *stopped/^done
// instead of ^running/*stopped
// (response->resultClass == GdbResultDone && (cmd.flags & RunRequest));
if (!isExpectedResult) {
#ifdef Q_OS_WIN
// Ignore spurious 'running' responses to 'attach'
const bool warning = !((startParameters().startMode == AttachExternal
|| startParameters().useTerminal)
&& cmd.command.startsWith("attach"));
#else
const bool warning = true;
#endif
if (warning) {
QByteArray rsp = GdbResponse::stringFromResultClass(response->resultClass);
rsp = "UNEXPECTED RESPONSE '" + rsp + "' TO COMMAND '" + cmd.command + "'";
qWarning() << rsp << " AT " __FILE__ ":" STRINGIFY(__LINE__);
showMessage(_(rsp));
}
}
if (cmd.callback)
(this->*cmd.callback)(*response);
else if (cmd.adapterCallback)
(m_gdbAdapter->*cmd.adapterCallback)(*response);
if (cmd.flags & RebuildWatchModel) {
--m_pendingWatchRequests;
PENDING_DEBUG(" WATCH" << cmd.command << "=>" << cmd.callbackName
<< "DECREMENTS PENDING WATCH TO" << m_pendingWatchRequests);
if (m_pendingWatchRequests <= 0) {
PENDING_DEBUG("\n\n ... AND TRIGGERS WATCH MODEL UPDATE\n");
rebuildWatchModel();
}
} else if (cmd.flags & RebuildBreakpointModel) {
--m_pendingBreakpointRequests;
PENDING_DEBUG(" BREAKPOINT" << cmd.command << "=>" << cmd.callbackName
<< "DECREMENTS PENDING TO" << m_pendingWatchRequests);
if (m_pendingBreakpointRequests <= 0) {
PENDING_DEBUG("\n\n ... AND TRIGGERS BREAKPOINT MODEL UPDATE\n");
attemptBreakpointSynchronization();
}
} else {
PENDING_DEBUG(" OTHER (OUT):" << cmd.command << "=>" << cmd.callbackName
<< "LEAVES PENDING WATCH AT" << m_pendingWatchRequests
<< "LEAVES PENDING BREAKPOINT AT" << m_pendingBreakpointRequests);
}
// Commands were queued, but we were in RunningRequested state, so the interrupt
// was postponed.
// This is done after the command callbacks so the running-requesting commands
// can assert on the right state.
if (state() == InferiorRunOk && !m_commandsToRunOnTemporaryBreak.isEmpty())
interruptInferiorTemporarily();
// Continue only if there are no commands wire anymore, so this will
// be fully synchronous.
// This is somewhat inefficient, as it makes the last command synchronous.
// An optimization would be requesting the continue immediately when the // event loop is entered, and let individual commands have a flag to suppress
// that behavior.
if (m_commandsDoneCallback && m_cookieForToken.isEmpty()) {
showMessage(_("ALL COMMANDS DONE; INVOKING CALLBACK"));
CommandsDoneCallback cont = m_commandsDoneCallback;
m_commandsDoneCallback = 0;
(this->*cont)();
} else {
PENDING_DEBUG("MISSING TOKENS: " << m_cookieForToken.keys());
}
if (m_cookieForToken.isEmpty())
m_commandTimer.stop();
}
void GdbEngine::executeDebuggerCommand(const QString &command)
{
if (state() == DebuggerNotReady) {
showMessage(_("GDB PROCESS NOT RUNNING, PLAIN CMD IGNORED: ") + command);
return;
}
m_gdbAdapter->write(command.toLatin1() + "\r\n");
}
// Called from CoreAdapter and AttachAdapter
void GdbEngine::updateAll()
{
if (hasPython())
updateAllPython();
else
updateAllClassic();
}
void GdbEngine::handleQuerySources(const GdbResponse &response)
{
m_sourcesListUpdating = false;
m_sourcesListOutdated = false;
if (response.resultClass == GdbResultDone) {
QMap<QString, QString> oldShortToFull = m_shortToFullName;
m_shortToFullName.clear();
m_fullToShortName.clear();
// "^done,files=[{file="../../../../bin/gdbmacros/gdbmacros.cpp",
// fullname="/data5/dev/ide/main/bin/gdbmacros/gdbmacros.cpp"},
GdbMi files = response.data.findChild("files");
foreach (const GdbMi &item, files.children()) {
GdbMi fullName = item.findChild("fullname");
GdbMi fileName = item.findChild("file");
QString file = QString::fromLocal8Bit(fileName.data());
if (fullName.isValid()) {
QString full = cleanupFullName(QString::fromLocal8Bit(fullName.data()));
m_shortToFullName[file] = full;
m_fullToShortName[full] = file;
} else if (fileName.isValid()) {
m_shortToFullName[file] = tr("<unknown>");
}
}
if (m_shortToFullName != oldShortToFull)
sourceFilesHandler()->setSourceFiles(m_shortToFullName);
}
}
void GdbEngine::handleExecuteJumpToLine(const GdbResponse &response)
{
if (response.resultClass == GdbResultRunning) {
notifyInferiorRunOk();
// All is fine. Waiting for the temporary breakpoint to be hit.
} else if (response.resultClass == GdbResultDone) {
// This happens on old gdb. Trigger the effect of a '*stopped'.
showStatusMessage(tr("Jumped. Stopped")); notifyInferiorSpontaneousStop();
handleStop1(response);
}
}
void GdbEngine::handleExecuteRunToLine(const GdbResponse &response)
{
if (response.resultClass == GdbResultRunning) {
notifyInferiorRunOk();
// All is fine. Waiting for the temporary breakpoint to be hit.
} else if (response.resultClass == GdbResultDone) {
// This happens on old gdb. Trigger the effect of a '*stopped'.
// >&"continue\n"
// >~"Continuing.\n"
//>~"testArray () at ../simple/app.cpp:241\n"
//>~"241\t s[1] = \"b\";\n"
//>122^done
gotoLocation(m_targetFrame);
showStatusMessage(tr("Target line hit. Stopped"));
notifyInferiorSpontaneousStop();
handleStop1(response);
}
}
static bool isExitedReason(const QByteArray &reason)
{
return reason == "exited-normally" // inferior exited normally
|| reason == "exited-signalled" // inferior exited because of a signal
//|| reason == "signal-received" // inferior received signal
|| reason == "exited"; // inferior exited
}
#if 0
void GdbEngine::handleAqcuiredInferior()
{
// Reverse debugging. FIXME: Should only be used when available.
//if (debuggerCore()->boolSetting(EnableReverseDebugging))
// postCommand("target response");
tryLoadDebuggingHelpers();
# ifndef Q_OS_MAC
// intentionally after tryLoadDebuggingHelpers(),
// otherwise we'd interrupt solib loading.
if (debuggerCore()->boolSetting(AllPluginBreakpoints)) {
postCommand("set auto-solib-add on");
postCommand("set stop-on-solib-events 0");
postCommand("sharedlibrary .*");
} else if (debuggerCore()->boolSetting(SelectedPluginBreakpoints)) {
postCommand("set auto-solib-add on");
postCommand("set stop-on-solib-events 1");
postCommand("sharedlibrary "
+ theDebuggerStringSetting(SelectedPluginBreakpointsPattern));
} else if (debuggerCore()->boolSetting(NoPluginBreakpoints)) {
// should be like that already
postCommand("set auto-solib-add off");
postCommand("set stop-on-solib-events 0");
}
# endif
// It's nicer to see a bit of the world we live in.
reloadModulesInternal();
}
#endif
#ifdef Q_OS_UNIX
# define STOP_SIGNAL "SIGINT"
# define CROSS_STOP_SIGNAL "SIGTRAP"
#else
# define STOP_SIGNAL "SIGTRAP"# define CROSS_STOP_SIGNAL "SIGINT"
#endif
void GdbEngine::handleStopResponse(const GdbMi &data)
{
// This is gdb 7+'s initial *stopped in response to attach.
// For consistency, we just discard it.
if (state() == InferiorSetupRequested)
return;
if (isDying()) {
notifyInferiorStopOk();
return;
}
const QByteArray reason = data.findChild("reason").data();
if (isExitedReason(reason)) {
// // The user triggered a stop, but meanwhile the app simply exited ...
// QTC_ASSERT(state() == InferiorStopRequested
// /*|| state() == InferiorStopRequested_Kill*/,
// qDebug() << state());
QString msg;
if (reason == "exited") {
msg = tr("Application exited with exit code %1")
.arg(_(data.findChild("exit-code").toString()));
} else if (reason == "exited-signalled" || reason == "signal-received") {
msg = tr("Application exited after receiving signal %1")
.arg(_(data.findChild("signal-name").toString()));
} else {
msg = tr("Application exited normally");
}
showStatusMessage(msg);
notifyInferiorExited();
return;
}
const int bkptno = data.findChild("bkptno").data().toInt();
const GdbMi frame = data.findChild("frame");
const int lineNumber = frame.findChild("line").data().toInt();
QString fullName = QString::fromUtf8(frame.findChild("fullname").data());
if (fullName.isEmpty())
fullName = QString::fromUtf8(frame.findChild("file").data());
if (bkptno && frame.isValid()) {
// Use opportunity to update the breakpoint marker position.
BreakHandler *handler = breakHandler();
BreakpointId id = handler->findBreakpointByNumber(bkptno);
const BreakpointResponse &response = handler->response(id);
QString fileName = response.fileName;
if (fileName.isEmpty())
fileName = handler->fileName(id);
if (fileName.isEmpty())
fileName = fullName;
if (!fileName.isEmpty())
handler->setMarkerFileAndLine(id, fileName, lineNumber);
}
// Quickly set the location marker.
if (lineNumber && !debuggerCore()->boolSetting(OperateByInstruction)
&& QFileInfo(fullName).exists())
gotoLocation(Location(fullName, lineNumber));
if (!m_commandsToRunOnTemporaryBreak.isEmpty()) {
QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state())
notifyInferiorStopOk();
flushQueuedCommands();
if (state() == InferiorStopOk) {
QTC_ASSERT(m_commandsDoneCallback == 0, /**/); m_commandsDoneCallback = &GdbEngine::autoContinueInferior;
} else {
QTC_ASSERT(state() == InferiorShutdownRequested, qDebug() << state())
}
return;
}
if (state() == InferiorRunOk) {
// Stop triggered by a breakpoint or otherwise not directly
// initiated by the user.
notifyInferiorSpontaneousStop();
} else if (state() == InferiorRunRequested) {
// Stop triggered by something like "-exec-step\n"
// "&"Cannot access memory at address 0xbfffedd4\n"
// In this case a proper response 94^error,msg="" will follow and
// be handled in the result handler.
// -- or --
// *stopped arriving earlier than ^done response to an -exec-step
notifyInferiorRunOk();
notifyInferiorSpontaneousStop();
} else {
QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state());
notifyInferiorStopOk();
}
// FIXME: Replace the #ifdef by the "target" architecture.
#ifdef Q_OS_LINUX
if (!m_entryPoint.isEmpty()) {
// This is needed as long as we support stock gdb 6.8.
if (frame.findChild("addr").data() == m_entryPoint) {
// There are two expected reasons for getting here:
// 1) For some reason, attaching to a stopped process causes *two*
// SIGSTOPs
// when trying to continue (kernel i386 2.6.24-23-ubuntu, gdb 6.8).
// Interestingly enough, on MacOSX no signal is delivered at all.
// 2) The explicit tbreak at the entry point we set to query the PID.
// Gdb <= 6.8 reports a frame but no reason, 6.8.50+ reports
// everything.
// The case of the user really setting a breakpoint at _start is simply
// unsupported.
if (!inferiorPid()) // For programs without -pthread under gdb <= 6.8.
postCommand("info proc", CB(handleInfoProc));
continueInferiorInternal();
return;
}
// We are past the initial stop(s). No need to waste time on further checks.
m_entryPoint.clear();
}
#endif
handleStop0(data);
}
void GdbEngine::handleStop0(const GdbMi &data)
{
#if 0 // See http://vladimir_prus.blogspot.com/2007/12/debugger-stories-pending-breakpoints.html
// Due to LD_PRELOADing the dumpers, these events can occur even before
// reaching the entry point. So handle it before the entry point hacks below.
if (reason.isEmpty() && m_gdbVersion < 70000 && !m_isMacGdb) {
// On Linux it reports "Stopped due to shared library event\n", but
// on Windows it simply forgets about it. Thus, we identify the response
// based on it having no frame information.
if (!data.findChild("frame").isValid()) {
invalidateSourcesList();
// Each stop causes a roundtrip and button flicker, so prevent
// a flood of useless stops. Will be automatically re-enabled.
postCommand("set stop-on-solib-events 0");
#if 0
// The related code (handleAqcuiredInferior()) is disabled as well.
if (debuggerCore()->boolSetting(SelectedPluginBreakpoints)) { QString dataStr = _(data.toString());
showMessage(_("SHARED LIBRARY EVENT: ") + dataStr);
QString pat = theDebuggerStringSetting(SelectedPluginBreakpointsPattern);
showMessage(_("PATTERN: ") + pat);
postCommand("sharedlibrary " + pat.toLocal8Bit());
showStatusMessage(tr("Loading %1...").arg(dataStr));
}
#endif
continueInferiorInternal();
return;
}
}
#endif
const GdbMi frame = data.findChild("frame");
const QByteArray reason = data.findChild("reason").data();
// This was seen on XP after removing a breakpoint while running
// >945*stopped,reason="signal-received",signal-name="SIGTRAP",
// signal-meaning="Trace/breakpoint trap",thread-id="2",
// frame={addr="0x7c91120f",func="ntdll!DbgUiConnectToDbg",
// args=[],from="C:\\WINDOWS\\system32\\ntdll.dll"}
// also seen on gdb 6.8-symbianelf without qXfer:libraries:read+;
// FIXME: remote.c parses "loaded" reply. It should be turning
// that into a TARGET_WAITKIND_LOADED. Does it?
// The bandaid here has the problem that it breaks for 'next' over a
// statement that indirectly loads shared libraries
// 6.1.2010: Breaks interrupting inferiors, disabled:
// if (reason == "signal-received"
// && data.findChild("signal-name").data() == "SIGTRAP") {
// continueInferiorInternal();
// return;
// }
// Jump over well-known frames.
static int stepCounter = 0;
if (debuggerCore()->boolSetting(SkipKnownFrames)) {
if (reason == "end-stepping-range" || reason == "function-finished") {
//showMessage(frame.toString());
QString funcName = _(frame.findChild("func").data());
QString fileName = QString::fromLocal8Bit(frame.findChild("file").data());
if (isLeavableFunction(funcName, fileName)) {
//showMessage(_("LEAVING ") + funcName);
++stepCounter;
executeStepOut();
return;
}
if (isSkippableFunction(funcName, fileName)) {
//showMessage(_("SKIPPING ") + funcName);
++stepCounter;
executeStep();
return;
}
//if (stepCounter)
// qDebug() << "STEPCOUNTER:" << stepCounter;
stepCounter = 0;
}
}
// Show return value if possible, usually with reason "function-finished".
// *stopped,reason="function-finished",frame={addr="0x080556da",
// func="testReturnValue",args=[],file="/../app.cpp",
// fullname="/../app.cpp",line="1611"},gdb-result-var="$1",
// return-value="{d = 0x808d998}",thread-id="1",stopped-threads="all",
// core="1"
GdbMi resultVar = data.findChild("gdb-result-var");
if (resultVar.isValid())
m_resultVarName = resultVar.data();
else
m_resultVarName.clear();
bool initHelpers = m_debuggingHelperState == DebuggingHelperUninitialized
|| m_debuggingHelperState == DebuggingHelperLoadTried;
// Don't load helpers on stops triggered by signals unless it's
// an intentional trap.
if (initHelpers
&& m_gdbAdapter->dumperHandling() != AbstractGdbAdapter::DumperLoadedByGdbPreload
&& reason == "signal-received") {
QByteArray name = data.findChild("signal-name").data();
if (name != STOP_SIGNAL
&& (startParameters().startMode != AttachToRemote
|| name != CROSS_STOP_SIGNAL))
initHelpers = false;
}
if (isSynchronous())
initHelpers = false;
if (initHelpers) {
tryLoadDebuggingHelpersClassic();
QVariant var = QVariant::fromValue<GdbMi>(data);
postCommand("p 4", CB(handleStop1), var); // dummy
} else {
handleStop1(data);
}
// Dumper loading is sequenced, as otherwise the display functions
// will start requesting data without knowing that dumpers are available.
}
void GdbEngine::handleStop1(const GdbResponse &response)
{
handleStop1(response.cookie.value<GdbMi>());
}
void GdbEngine::handleStop1(const GdbMi &data)
{
if (isDying()) {
qDebug() << "HANDLING STOP WHILE DYING";
notifyInferiorStopOk();
return;
}
QByteArray reason = data.findChild("reason").data();
#ifdef Q_OS_WIN
if (startParameters().useTerminal && reason == "signal-received"
&& data.findChild("signal-name").data() == "SIGTRAP") {
// Command line start up trap
showMessage(_("INTERNAL CONTINUE"), LogMisc);
continueInferiorInternal();
return;
}
#endif
// This is for display only.
if (m_modulesListOutdated)
reloadModulesInternal();
if (m_breakListOutdated) {
reloadBreakListInternal();
} else {
// Older gdb versions do not produce "library loaded" messages
// so the breakpoint update is not triggered.
if (m_gdbVersion < 70000 && !m_isMacGdb && breakHandler()->size() > 0)
reloadBreakListInternal();
}
if (reason == "watchpoint-trigger") {
// *stopped,reason="watchpoint-trigger",wpt={number="2",exp="*0xbfffed40"},
// value={old="1",new="0"},frame={addr="0x00451e1b",
// func="QScopedPointer",args=[{name="this",value="0xbfffed40"},
// {name="p",value="0x0"}],file="x.h",fullname="/home/.../x.h",line="95"}, // thread-id="1",stopped-threads="all",core="2"
GdbMi wpt = data.findChild("wpt");
const int bpNumber = wpt.findChild("number").data().toInt();
const BreakpointId id = breakHandler()->findBreakpointByNumber(bpNumber);
const quint64 bpAddress = wpt.findChild("exp").data().mid(1).toULongLong(0, 0);
showStatusMessage(msgWatchpointTriggered(id, bpNumber, bpAddress));
} else if (reason == "breakpoint-hit") {
GdbMi gNumber = data.findChild("bkptno"); // 'number' or 'bkptno'?
if (!gNumber.isValid())
gNumber = data.findChild("number");
const int bpNumber = gNumber.data().toInt();
const QByteArray threadId = data.findChild("thread-id").data();
const BreakpointId id = breakHandler()->findBreakpointByNumber(bpNumber);
showStatusMessage(msgBreakpointTriggered(id, bpNumber, _(threadId)));
m_currentThread = threadId;
} else {
QString reasontr = msgStopped(_(reason));
if (reason == "signal-received"
&& debuggerCore()->boolSetting(UseMessageBoxForSignals)) {
QByteArray name = data.findChild("signal-name").data();
QByteArray meaning = data.findChild("signal-meaning").data();
// Ignore these as they are showing up regularly when
// stopping debugging.
if (name == STOP_SIGNAL) {
showMessage(_(STOP_SIGNAL " CONSIDERED HARMLESS. CONTINUING."));
} else if (startParameters().startMode == AttachToRemote
&& name == CROSS_STOP_SIGNAL) {
showMessage(_(CROSS_STOP_SIGNAL " CONSIDERED HARMLESS. CONTINUING."));
} else {
showMessage(_("HANDLING SIGNAL" + name));
showStoppedBySignalMessageBox(_(meaning), _(name));
if (!name.isEmpty() && !meaning.isEmpty())
reasontr = msgStoppedBySignal(_(meaning), _(name));
}
}
if (reason.isEmpty())
showStatusMessage(msgStopped());
else
showStatusMessage(reasontr);
}
// Let the event loop run before deciding whether to update the stack.
m_stackNeeded = true; // setTokenBarrier() might reset this.
m_currentThreadId = data.findChild("thread-id").data().toInt();
QTimer::singleShot(0, this, SLOT(handleStop2()));
}
void GdbEngine::handleStop2()
{
// We are already continuing.
if (!m_stackNeeded)
return;
reloadStack(false); // Will trigger register reload.
if (supportsThreads()) {
if (m_gdbAdapter->isTrkAdapter()) {
m_gdbAdapter->trkReloadThreads();
} else if (m_isMacGdb) {
postCommand("-thread-list-ids", Discardable,
CB(handleThreadListIds), m_currentThreadId);
} else {
// This is only available in gdb 7.1+.
postCommand("-thread-info", Discardable,
CB(handleThreadInfo), m_currentThreadId);
}
}
}
void GdbEngine::handleInfoProc(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
static QRegExp re(_("\\bprocess ([0-9]+)\n"));
QTC_ASSERT(re.isValid(), return);
if (re.indexIn(_(response.data.findChild("consolestreamoutput").data())) != -1)
maybeHandleInferiorPidChanged(re.cap(1));
}
}
void GdbEngine::handleShowVersion(const GdbResponse &response)
{
showMessage(_("PARSING VERSION: " + response.toString()));
if (response.resultClass == GdbResultDone) {
m_gdbVersion = 100;
m_gdbBuildVersion = -1;
m_isMacGdb = false;
GdbMi version = response.data.findChild("consolestreamoutput");
QString msg = QString::fromLocal8Bit(version.data());
extractGdbVersion(msg,
&m_gdbVersion, &m_gdbBuildVersion, &m_isMacGdb);
if (m_gdbVersion > 60500 && m_gdbVersion < 200000)
showMessage(_("SUPPORTED GDB VERSION ") + msg);
else
showMessage(_("UNSUPPORTED GDB VERSION ") + msg);
showMessage(_("USING GDB VERSION: %1, BUILD: %2%3").arg(m_gdbVersion)
.arg(m_gdbBuildVersion).arg(_(m_isMacGdb ? " (APPLE)" : "")));
}
}
void GdbEngine::handleHasPython(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
m_hasPython = true;
GdbMi contents = response.data.findChild("consolestreamoutput");
GdbMi data;
data.fromStringMultiple(contents.data());
const GdbMi dumpers = data.findChild("dumpers");
foreach (const GdbMi &dumper, dumpers.children()) {
QByteArray type = dumper.findChild("type").data();
QStringList formats(tr("Raw structure"));
QString reported = _(dumper.findChild("formats").data());
formats.append(reported.split(_(","), QString::SkipEmptyParts));
watchHandler()->addTypeFormats(type, formats);
}
const GdbMi hasInferiorThreadList = data.findChild("hasInferiorThreadList");
m_hasInferiorThreadList = (hasInferiorThreadList.data().toInt() != 0);
} else {
pythonDumpersFailed();
}
}
void GdbEngine::pythonDumpersFailed()
{
m_hasPython = false;
if (m_gdbAdapter->dumperHandling()
== AbstractGdbAdapter::DumperLoadedByGdbPreload
&& checkDebuggingHelpersClassic()) {
#ifdef Q_OS_MAC
const char * const LD_PRELOAD_ENV_VAR = "DYLD_INSERT_LIBRARIES";
#else
const char * const LD_PRELOAD_ENV_VAR = "LD_PRELOAD";
#endif
QByteArray cmd = "set environment ";
cmd += LD_PRELOAD_ENV_VAR;
cmd += ' ';
cmd += startParameters().startMode == StartRemoteGdb
? startParameters().remoteDumperLib : qtDumperLibraryName().toLocal8Bit();
postCommand(cmd);
m_debuggingHelperState = DebuggingHelperLoadTried;
}
}
void GdbEngine::showExecutionError(const QString &message)
{
showMessageBox(QMessageBox::Critical, tr("Execution Error"),
tr("Cannot continue debugged process:\n") + message);
}
void GdbEngine::handleExecuteContinue(const GdbResponse &response)
{
QTC_ASSERT(state() == InferiorRunRequested, qDebug() << state());
if (response.resultClass == GdbResultRunning) {
notifyInferiorRunOk();
return;
}
QByteArray msg = response.data.findChild("msg").data();
if (msg.startsWith("Cannot find bounds of current function")
|| msg.startsWith("\"finish\" not meaningful in the outermost frame")) {
notifyInferiorRunFailed();
if (isDying())
return;
if (!m_commandsToRunOnTemporaryBreak.isEmpty())
flushQueuedCommands();
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
showStatusMessage(tr("Stopped."), 5000);
reloadStack(true);
//showStatusMessage(tr("No debug information available. "
// "Leaving function..."));
//executeStepOut();
} else {
showExecutionError(QString::fromLocal8Bit(msg));
notifyInferiorIll();
}
}
QString GdbEngine::fullName(const QString &fileName)
{
if (fileName.isEmpty())
return QString();
//QTC_ASSERT(!m_sourcesListOutdated, /* */)
QTC_ASSERT(!m_sourcesListUpdating, /* */)
return m_shortToFullName.value(fileName, QString());
}
QString GdbEngine::cleanupFullName(const QString &fileName)
{
QString cleanFilePath = fileName;
#ifdef Q_OS_WIN
QTC_ASSERT(!fileName.isEmpty(), return QString())
// Gdb on windows often delivers "fullnames" which
// (a) have no drive letter and (b) are not normalized.
QFileInfo fi(fileName);
if (fi.isReadable())
cleanFilePath = QDir::cleanPath(fi.absoluteFilePath());
#endif
if (startMode() == StartRemoteGdb) {
cleanFilePath.replace(0, startParameters().remoteMountPoint.length(),
startParameters().localMountDir);
}
return cleanFilePath;
}
void GdbEngine::shutdownInferior()
{
QTC_ASSERT(state() == InferiorShutdownRequested, qDebug() << state());
m_commandsToRunOnTemporaryBreak.clear(); m_gdbAdapter->shutdownInferior();
}
void GdbEngine::defaultInferiorShutdown(const char *cmd)
{
QTC_ASSERT(state() == InferiorShutdownRequested, qDebug() << state());
postCommand(cmd, NeedsStop | LosesChild, CB(handleInferiorShutdown));
}
void GdbEngine::handleInferiorShutdown(const GdbResponse &response)
{
QTC_ASSERT(state() == InferiorShutdownRequested, qDebug() << state());
if (response.resultClass == GdbResultDone) {
notifyInferiorShutdownOk();
return;
}
QByteArray ba = response.data.findChild("msg").data();
if (ba.contains(": No such file or directory.")) {
// This happens when someone removed the binary behind our back.
// It is not really an error from a user's point of view.
showMessage(_("NOTE: " + ba));
notifyInferiorShutdownOk();
return;
}
showMessageBox(QMessageBox::Critical,
tr("Failed to shut down application"),
AbstractGdbAdapter::msgInferiorStopFailed(QString::fromLocal8Bit(ba)));
notifyInferiorShutdownFailed();
}
void GdbEngine::shutdownEngine()
{
m_gdbAdapter->shutdownAdapter();
}
void GdbEngine::notifyAdapterShutdownFailed()
{
showMessage(_("ADAPTER SHUTDOWN FAILED"));
QTC_ASSERT(state() == EngineShutdownRequested, qDebug() << state());
notifyEngineShutdownFailed();
}
void GdbEngine::notifyAdapterShutdownOk()
{
QTC_ASSERT(state() == EngineShutdownRequested, qDebug() << state());
showMessage(_("INITIATE GDBENGINE SHUTDOWN IN STATE %1, PROC: %2")
.arg(lastGoodState()).arg(gdbProc()->state()));
m_commandsDoneCallback = 0;
switch (gdbProc()->state()) {
case QProcess::Running:
postCommand("-gdb-exit", GdbEngine::ExitRequest, CB(handleGdbExit));
break;
case QProcess::NotRunning:
// Cannot find executable.
notifyEngineShutdownOk();
break;
case QProcess::Starting:
showMessage(_("GDB NOT REALLY RUNNING; KILLING IT"));
gdbProc()->kill();
notifyEngineShutdownFailed();
break;
}
}
void GdbEngine::handleGdbExit(const GdbResponse &response)
{
if (response.resultClass == GdbResultExit) {
showMessage(_("GDB CLAIMS EXIT; WAITING"));
// Don't set state here, this will be handled in handleGdbFinished()
//notifyEngineShutdownOk(); } else {
QString msg = m_gdbAdapter->msgGdbStopFailed(
QString::fromLocal8Bit(response.data.findChild("msg").data()));
qDebug() << (_("GDB WON'T EXIT (%1); KILLING IT").arg(msg));
showMessage(_("GDB WON'T EXIT (%1); KILLING IT").arg(msg));
gdbProc()->kill();
}
}
void GdbEngine::detachDebugger()
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
QTC_ASSERT(startMode() != AttachCore, qDebug() << startMode());
postCommand("detach", GdbEngine::ExitRequest, CB(handleDetach));
}
void GdbEngine::handleDetach(const GdbResponse &response)
{
Q_UNUSED(response);
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
notifyInferiorExited();
}
int GdbEngine::currentFrame() const
{
return stackHandler()->currentIndex();
}
QString msgNoBinaryForToolChain(int tc)
{
using namespace ProjectExplorer;
return GdbEngine::tr("There is no gdb binary available for '%1'")
.arg(ToolChain::toolChainName(ToolChainType(tc)));
}
AbstractGdbAdapter *GdbEngine::createAdapter()
{
const DebuggerStartParameters &sp = startParameters();
switch (sp.toolChainType) {
case ProjectExplorer::ToolChain_WINSCW: // S60
case ProjectExplorer::ToolChain_GCCE:
case ProjectExplorer::ToolChain_RVCT2_ARMV5:
case ProjectExplorer::ToolChain_RVCT2_ARMV6:
case ProjectExplorer::ToolChain_RVCT_ARMV5_GNUPOC:
case ProjectExplorer::ToolChain_GCCE_GNUPOC:
// FIXME: 1 of 3 testing hacks.
if (sp.communicationChannel == DebuggerStartParameters::CommunicationChannelTcpIp)
return new TcfTrkGdbAdapter(this);
else
return new TrkGdbAdapter(this);
default:
break;
}
switch (sp.startMode) {
case AttachCore:
return new CoreGdbAdapter(this);
case AttachToRemote:
return new RemoteGdbServerAdapter(this, sp.toolChainType);
case StartRemoteGdb:
return new RemotePlainGdbAdapter(this);
case AttachExternal:
return new AttachGdbAdapter(this);
default:
if (sp.useTerminal)
return new TermGdbAdapter(this);
return new LocalPlainGdbAdapter(this);
}
}
void GdbEngine::setupEngine()
{
QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
QTC_ASSERT(m_debuggingHelperState == DebuggingHelperUninitialized, /**/);
if (m_gdbAdapter->dumperHandling() != AbstractGdbAdapter::DumperNotAvailable) {
connect(debuggerCore()->action(UseDebuggingHelpers),
SIGNAL(valueChanged(QVariant)),
SLOT(setUseDebuggingHelpers(QVariant)));
}
QTC_ASSERT(state() == EngineSetupRequested, /**/);
m_gdbAdapter->startAdapter();
}
unsigned GdbEngine::debuggerCapabilities() const
{
unsigned caps = ReverseSteppingCapability
| AutoDerefPointersCapability
| DisassemblerCapability
| RegisterCapability
| ShowMemoryCapability
| JumpToLineCapability
| ReloadModuleCapability
| ReloadModuleSymbolsCapability
| BreakOnThrowAndCatchCapability
| ReturnFromFunctionCapability
| CreateFullBacktraceCapability
| WatchpointCapability
| AddWatcherCapability
| ShowModuleSymbolsCapability;
if (startParameters().startMode == AttachCore)
return caps;
return caps | SnapshotCapability;
}
void GdbEngine::continueInferiorInternal()
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
notifyInferiorRunRequested();
showStatusMessage(tr("Running requested..."), 5000);
QTC_ASSERT(state() == InferiorRunRequested, qDebug() << state());
postCommand("-exec-continue", RunRequest, CB(handleExecuteContinue));
}
void GdbEngine::autoContinueInferior()
{
resetLocation();
continueInferiorInternal();
showStatusMessage(tr("Continuing after temporary stop..."), 1000);
}
void GdbEngine::continueInferior()
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
setTokenBarrier();
continueInferiorInternal();
}
void GdbEngine::executeStep()
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
setTokenBarrier();
notifyInferiorRunRequested();
showStatusMessage(tr("Step requested..."), 5000);
if (m_gdbAdapter->isTrkAdapter() && stackHandler()->stackSize() > 0)
postCommand("sal step,0x" + QByteArray::number(stackHandler()->topAddress(), 16));
if (isReverseDebugging()) postCommand("reverse-step", RunRequest, CB(handleExecuteStep));
else
postCommand("-exec-step", RunRequest, CB(handleExecuteStep));
}
void GdbEngine::handleExecuteStep(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
// Step was finishing too quick, and a '*stopped' messages should
// have preceeded it, so just ignore this result.
QTC_ASSERT(state() == InferiorStopOk, /**/);
return;
}
QTC_ASSERT(state() == InferiorRunRequested, qDebug() << state());
if (response.resultClass == GdbResultRunning) {
notifyInferiorRunOk();
return;
}
QByteArray msg = response.data.findChild("msg").data();
if (msg.startsWith("Cannot find bounds of current function")) {
notifyInferiorRunFailed();
if (isDying())
return;
if (!m_commandsToRunOnTemporaryBreak.isEmpty())
flushQueuedCommands();
executeStepI(); // Fall back to instruction-wise stepping.
} else {
showExecutionError(QString::fromLocal8Bit(msg));
notifyInferiorIll();
}
}
void GdbEngine::executeStepI()
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
setTokenBarrier();
notifyInferiorRunRequested();
showStatusMessage(tr("Step by instruction requested..."), 5000);
if (isReverseDebugging())
postCommand("reverse-stepi", RunRequest, CB(handleExecuteContinue));
else
postCommand("-exec-step-instruction", RunRequest, CB(handleExecuteContinue));
}
void GdbEngine::executeStepOut()
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
postCommand("-stack-select-frame 0");
setTokenBarrier();
notifyInferiorRunRequested();
showStatusMessage(tr("Finish function requested..."), 5000);
postCommand("-exec-finish", RunRequest, CB(handleExecuteContinue));
}
void GdbEngine::executeNext()
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
setTokenBarrier();
notifyInferiorRunRequested();
showStatusMessage(tr("Step next requested..."), 5000);
if (m_gdbAdapter->isTrkAdapter() && stackHandler()->stackSize() > 0)
postCommand("sal next,0x" + QByteArray::number(stackHandler()->topAddress(), 16));
if (isReverseDebugging())
postCommand("reverse-next", RunRequest, CB(handleExecuteNext));
else
postCommand("-exec-next", RunRequest, CB(handleExecuteNext));
}
void GdbEngine::handleExecuteNext(const GdbResponse &response)
{ if (response.resultClass == GdbResultDone) {
// Step was finishing too quick, and a '*stopped' messages should
// have preceeded it, so just ignore this result.
QTC_ASSERT(state() == InferiorStopOk, /**/);
return;
}
QTC_ASSERT(state() == InferiorRunRequested, qDebug() << state());
if (response.resultClass == GdbResultRunning) {
notifyInferiorRunOk();
return;
}
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
QByteArray msg = response.data.findChild("msg").data();
if (msg.startsWith("Cannot find bounds of current function")) {
if (!m_commandsToRunOnTemporaryBreak.isEmpty())
flushQueuedCommands();
notifyInferiorRunFailed();
if (!isDying())
executeNextI(); // Fall back to instruction-wise stepping.
} else {
showMessageBox(QMessageBox::Critical, tr("Execution Error"),
tr("Cannot continue debugged process:\n") + QString::fromLocal8Bit(msg));
notifyInferiorIll();
}
}
void GdbEngine::executeNextI()
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
setTokenBarrier();
notifyInferiorRunRequested();
showStatusMessage(tr("Step next instruction requested..."), 5000);
if (isReverseDebugging())
postCommand("reverse-nexti", RunRequest, CB(handleExecuteContinue));
else
postCommand("-exec-next-instruction", RunRequest, CB(handleExecuteContinue));
}
void GdbEngine::executeRunToLine(const QString &fileName, int lineNumber)
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
setTokenBarrier();
notifyInferiorRunRequested();
showStatusMessage(tr("Run to line %1 requested...").arg(lineNumber), 5000);
#if 1
m_targetFrame.file = fileName;
m_targetFrame.line = lineNumber;
QByteArray loc = '"' + breakLocation(fileName).toLocal8Bit() + '"' + ':'
+ QByteArray::number(lineNumber);
postCommand("tbreak " + loc);
postCommand("continue", RunRequest, CB(handleExecuteRunToLine));
#else
// Seems to jump to unpredicatable places. Observed in the manual
// tests in the Foo::Foo() constructor with both gdb 6.8 and 7.1.
QByteArray args = '"' + breakLocation(fileName).toLocal8Bit() + '"' + ':'
+ QByteArray::number(lineNumber);
postCommand("-exec-until " + args, RunRequest, CB(handleExecuteContinue));
#endif
}
void GdbEngine::executeRunToFunction(const QString &functionName)
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
setTokenBarrier();
postCommand("-break-insert -t " + functionName.toLatin1());
showStatusMessage(tr("Run to function %1 requested...").arg(functionName), 5000);
continueInferiorInternal();
}
void GdbEngine::executeJumpToLine(const QString &fileName, int lineNumber){
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
StackFrame frame;
frame.file = fileName;
frame.line = lineNumber;
#if 1
QByteArray loc = '"' + breakLocation(fileName).toLocal8Bit() + '"' + ':'
+ QByteArray::number(lineNumber);
postCommand("tbreak " + loc);
notifyInferiorRunRequested();
postCommand("jump " + loc, RunRequest, CB(handleExecuteJumpToLine));
// will produce something like
// &"jump \"/home/apoenitz/dev/work/test1/test1.cpp\":242"
// ~"Continuing at 0x4058f3."
// ~"run1 (argc=1, argv=0x7fffbf1f5538) at test1.cpp:242"
// ~"242\t x *= 2;"
// 23^done"
gotoLocation(frame);
//setBreakpoint();
//postCommand("jump " + loc);
#else
gotoLocation(frame);
setBreakpoint(fileName, lineNumber);
notifyInferiorRunRequested();
postCommand("jump " + loc, RunRequest);
#endif
}
void GdbEngine::executeReturn()
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
setTokenBarrier();
notifyInferiorRunRequested();
showStatusMessage(tr("Immediate return from function requested..."), 5000);
postCommand("-exec-finish", RunRequest, CB(handleExecuteReturn));
}
void GdbEngine::handleExecuteReturn(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
notifyInferiorStopOk();
updateAll();
return;
}
notifyInferiorRunFailed();
}
/*!
\fn void GdbEngine::setTokenBarrier()
\brief Discard the results of all pending watch-updating commands.
This method is called at the beginning of all step/next/finish etc.
debugger functions.
If non-watch-updating commands with call-backs are still in the pipe,
it will complain.
*/
void GdbEngine::setTokenBarrier()
{
foreach (const GdbCommand &cookie, m_cookieForToken) {
QTC_ASSERT(!cookie.callback || (cookie.flags & Discardable),
qDebug() << "CMD:" << cookie.command
<< " FLAGS:" << cookie.flags
<< " CALLBACK:" << cookie.callbackName;
return
);
}
PENDING_DEBUG("\n--- token barrier ---\n");
showMessage(_("--- token barrier ---"), LogMiscInput);
if (debuggerCore()->boolSetting(LogTimeStamps)) showMessage(LogWindow::logTimeStamp(), LogMiscInput);
m_oldestAcceptableToken = currentToken();
m_stackNeeded = false;
}
//////////////////////////////////////////////////////////////////////
//
// Breakpoint specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::updateBreakpointDataFromOutput(BreakpointId id, const GdbMi &bkpt)
{
QTC_ASSERT(bkpt.isValid(), return);
BreakpointResponse response = breakHandler()->response(id);
response.multiple = false;
response.enabled = true;
response.pending = false;
response.condition.clear();
QByteArray file, fullName;
foreach (const GdbMi &child, bkpt.children()) {
if (child.hasName("number")) {
response.number = child.data().toInt();
} else if (child.hasName("func")) {
response.functionName = _(child.data());
} else if (child.hasName("addr")) {
// <MULTIPLE> happens in constructors. In this case there are
// _two_ fields named "addr" in the response. On Linux that is...
if (child.data().startsWith("0x")) {
response.address = child.data().mid(2).toULongLong(0, 16);
} else {
response.extra = child.data();
if (child.data() == "<MULTIPLE>")
response.multiple = true;
}
} else if (child.hasName("file")) {
file = child.data();
} else if (child.hasName("fullname")) {
fullName = child.data();
} else if (child.hasName("line")) {
// The line numbers here are the uncorrected ones. So don't
// change it if we know better already.
if (response.correctedLineNumber == 0)
response.lineNumber = child.data().toInt();
} else if (child.hasName("cond")) {
// gdb 6.3 likes to "rewrite" conditions. Just accept that fact.
response.condition = child.data();
} else if (child.hasName("enabled")) {
response.enabled = (child.data() == "y");
} else if (child.hasName("pending")) {
// Any content here would be interesting only if we did accept
// spontaneously appearing breakpoints (user using gdb commands).
response.pending = true;
} else if (child.hasName("at")) {
// Happens with gdb 6.4 symbianelf.
QByteArray ba = child.data();
if (ba.startsWith('<') && ba.endsWith('>'))
ba = ba.mid(1, ba.size() - 2);
response.functionName = _(ba);
} else if (child.hasName("thread")) {
response.threadSpec = child.data().toInt();
} else if (child.hasName("type")) {
// "breakpoint", "hw breakpoint", "tracepoint"
if (child.data().contains("tracepoint"))
response.tracepoint = true;
else if (!child.data().contains("reakpoint"))
response.type = Watchpoint;
} // This field is not present. Contents needs to be parsed from
// the plain "ignore" response.
//else if (child.hasName("ignore"))
// response.ignoreCount = child.data();
}
QString name;
if (!fullName.isEmpty()) {
name = cleanupFullName(QFile::decodeName(fullName));
response.fileName = name;
//if (data->markerFileName().isEmpty())
// data->setMarkerFileName(name);
} else {
name = QFile::decodeName(file);
// Use fullName() once we have a mapping which is more complete than
// gdb's own. No point in assigning markerFileName for now.
}
if (!name.isEmpty())
response.fileName = name;
breakHandler()->setResponse(id, response);
}
QString GdbEngine::breakLocation(const QString &file) const
{
//QTC_ASSERT(!m_breakListOutdated, /* */)
QString where = m_fullToShortName.value(file);
if (where.isEmpty())
return QFileInfo(file).fileName();
return where;
}
static QByteArray addressSpec(quint64 address)
{
return "*0x" + QByteArray::number(address, 16);
}
QByteArray GdbEngine::breakpointLocation(BreakpointId id)
{
BreakHandler *handler = breakHandler();
const BreakpointParameters &data = handler->breakpointData(id);
QTC_ASSERT(data.type != UnknownType, return QByteArray());
// FIXME: Non-GCC-runtime
if (data.type == BreakpointAtThrow)
return "__cxa_throw";
if (data.type == BreakpointAtCatch)
return "__cxa_begin_catch";
if (data.type == BreakpointAtMain)
#ifdef Q_OS_WIN
// FIXME: Should be target specific.
return "qMain";
#else
return "main";
#endif
if (data.type == BreakpointByFunction)
return data.functionName.toUtf8();
if (data.type == BreakpointByAddress)
return addressSpec(data.address);
const QString fileName = data.useFullPath
? data.fileName : breakLocation(data.fileName);
// The argument is simply a C-quoted version of the argument to the
// non-MI "break" command, including the "original" quoting it wants.
return "\"\\\"" + GdbMi::escapeCString(fileName).toLocal8Bit() + "\\\":"
+ QByteArray::number(data.lineNumber) + '"';
}
void GdbEngine::handleWatchInsert(const GdbResponse &response)
{
const int id = response.cookie.toInt(); if (response.resultClass == GdbResultDone) {
// "Hardware watchpoint 2: *0xbfffed40\n"
QByteArray ba = response.data.findChild("consolestreamoutput").data();
if (ba.startsWith("Hardware watchpoint ")
|| ba.startsWith("Watchpoint ")) {
const int end = ba.indexOf(':');
const int begin = ba.lastIndexOf(' ', end) + 1;
const QByteArray address = ba.mid(end + 3).trimmed();
BreakHandler *handler = breakHandler();
BreakpointResponse response = handler->response(id);
response.number = ba.mid(begin, end - begin).toInt();
response.address = address.toULongLong(0, 0);
handler->setResponse(id, response);
QTC_ASSERT(!handler->needsChange(id), /**/);
handler->notifyBreakpointInsertOk(id);
} else {
showMessage(_("CANNOT PARSE WATCHPOINT FROM " + ba));
}
}
}
void GdbEngine::attemptAdjustBreakpointLocation(BreakpointId id)
{
if (!debuggerCore()->boolSetting(AdjustBreakpointLocations))
return;
BreakpointResponse response = breakHandler()->response(id);
if (response.address == 0 || response.correctedLineNumber != 0)
return;
// Prevent endless loop.
response.correctedLineNumber = -1;
breakHandler()->setResponse(id, response);
postCommand("info line *0x" + QByteArray::number(response.address, 16),
NeedsStop | RebuildBreakpointModel,
CB(handleInfoLine), id);
}
void GdbEngine::handleBreakInsert1(const GdbResponse &response)
{
BreakHandler *handler = breakHandler();
BreakpointId id(response.cookie.toInt());
if (response.resultClass == GdbResultDone) {
// Interesting only on Mac?
GdbMi bkpt = response.data.findChild("bkpt");
updateBreakpointDataFromOutput(id, bkpt);
if (handler->needsChange(id)) {
handler->notifyBreakpointChangeAfterInsertNeeded(id);
changeBreakpoint(id);
} else {
handler->notifyBreakpointInsertOk(id);
attemptAdjustBreakpointLocation(id);
}
} else if (response.data.findChild("msg").data().contains("Unknown option")) {
// Older version of gdb don't know the -a option to set tracepoints
// ^error,msg="mi_cmd_break_insert: Unknown option ``a''"
const QString fileName = handler->fileName(id);
const int lineNumber = handler->lineNumber(id);
QByteArray cmd = "trace "
"\"" + GdbMi::escapeCString(fileName).toLocal8Bit() + "\":"
+ QByteArray::number(lineNumber);
postCommand(cmd, NeedsStop | RebuildBreakpointModel,
CB(handleTraceInsert2), id);
} else {
// Some versions of gdb like "GNU gdb (GDB) SUSE (6.8.91.20090930-2.4)"
// know how to do pending breakpoints using CLI but not MI. So try
// again with MI.
QByteArray cmd = "break " + breakpointLocation(id);
postCommand(cmd, NeedsStop | RebuildBreakpointModel,
CB(handleBreakInsert2), id);
}
}
void GdbEngine::handleBreakInsert2(const GdbResponse &response)
{
if (response.resultClass == GdbResultError) {
if (m_gdbVersion < 60800 && !m_isMacGdb) {
// This gdb version doesn't "do" pending breakpoints.
// Not much we can do about it except implementing the
// logic on top of shared library events, and that's not
// worth the effort.
} else {
QTC_ASSERT(false, /**/);
}
}
}
void GdbEngine::handleTraceInsert2(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone)
reloadBreakListInternal();
}
void GdbEngine::reloadBreakListInternal()
{
postCommand("-break-list",
NeedsStop | RebuildBreakpointModel,
CB(handleBreakList));
}
void GdbEngine::handleBreakList(const GdbResponse &response)
{
// 45^done,BreakpointTable={nr_rows="2",nr_cols="6",hdr=[
// {width="3",alignment="-1",col_name="number",colhdr="Num"}, ...
// body=[bkpt={number="1",type="breakpoint",disp="keep",enabled="y",
// addr="0x000000000040109e",func="main",file="app.cpp",
// fullname="/home/apoenitz/dev/work/plugintest/app/app.cpp",
// line="11",times="1"},
// bkpt={number="2",type="breakpoint",disp="keep",enabled="y",
// addr="<PENDING>",pending="plugin.cpp:7",times="0"}] ... }
if (response.resultClass == GdbResultDone) {
GdbMi table = response.data.findChild("BreakpointTable");
if (table.isValid())
handleBreakList(table);
}
}
void GdbEngine::handleBreakList(const GdbMi &table)
{
const GdbMi body = table.findChild("body");
QList<GdbMi> bkpts;
if (body.isValid()) {
// Non-Mac
bkpts = body.children();
} else {
// Mac
bkpts = table.children();
// Remove the 'hdr' and artificial items.
for (int i = bkpts.size(); --i >= 0; ) {
int num = bkpts.at(i).findChild("number").data().toInt();
if (num <= 0)
bkpts.removeAt(i);
}
}
foreach (const GdbMi &bkpt, bkpts) {
BreakpointResponse needle;
needle.number = bkpt.findChild("number").data().toInt();
BreakpointId id = breakHandler()->findSimilarBreakpoint(needle);
if (id != BreakpointId(-1)) {
updateBreakpointDataFromOutput(id, bkpt); } else {
qDebug() << " NOTHING SUITABLE FOUND";
showMessage(_("CANNOT FIND BP: " + bkpt.toString()));
}
}
m_breakListOutdated = false;
}
void GdbEngine::handleBreakDisable(const GdbResponse &response)
{
QTC_ASSERT(response.resultClass == GdbResultDone, /**/)
const BreakpointId id = response.cookie.toInt();
BreakHandler *handler = breakHandler();
// This should only be the requested state.
QTC_ASSERT(!handler->isEnabled(id), /* Prevent later recursion */);
BreakpointResponse br = handler->response(id);
br.enabled = false;
handler->setResponse(id, br);
changeBreakpoint(id); // Maybe there's more to do.
}
void GdbEngine::handleBreakEnable(const GdbResponse &response)
{
QTC_ASSERT(response.resultClass == GdbResultDone, /**/)
const BreakpointId id = response.cookie.toInt();
BreakHandler *handler = breakHandler();
// This should only be the requested state.
QTC_ASSERT(handler->isEnabled(id), /* Prevent later recursion */);
BreakpointResponse br = handler->response(id);
br.enabled = true;
handler->setResponse(id, br);
changeBreakpoint(id); // Maybe there's more to do.
}
void GdbEngine::handleBreakThreadSpec(const GdbResponse &response)
{
QTC_ASSERT(response.resultClass == GdbResultDone, /**/)
const BreakpointId id = response.cookie.toInt();
BreakHandler *handler = breakHandler();
BreakpointResponse br = handler->response(id);
br.threadSpec = handler->threadSpec(id);
handler->setResponse(id, br);
handler->notifyBreakpointNeedsReinsertion(id);
insertBreakpoint(id);
}
void GdbEngine::handleBreakIgnore(const GdbResponse &response)
{
// gdb 6.8:
// ignore 2 0:
// ~"Will stop next time breakpoint 2 is reached.\n"
// 28^done
// ignore 2 12:
// &"ignore 2 12\n"
// ~"Will ignore next 12 crossings of breakpoint 2.\n"
// 29^done
//
// gdb 6.3 does not produce any console output
QTC_ASSERT(response.resultClass == GdbResultDone, /**/)
QString msg = _(response.data.findChild("consolestreamoutput").data());
BreakpointId id = response.cookie.toInt();
BreakHandler *handler = breakHandler();
BreakpointResponse br = handler->response(id);
//if (msg.contains(__("Will stop next time breakpoint")))
// response.ignoreCount = _("0");
//else if (msg.contains(__("Will ignore next")))
// response.ignoreCount = data->ignoreCount;
// FIXME: this assumes it is doing the right thing...
br.ignoreCount = handler->ignoreCount(id); handler->setResponse(id, br);
changeBreakpoint(id); // Maybe there's more to do.
}
void GdbEngine::handleBreakCondition(const GdbResponse &response)
{
// Can happen at invalid condition strings.
//QTC_ASSERT(response.resultClass == GdbResultDone, /**/)
const BreakpointId id = response.cookie.toInt();
BreakHandler *handler = breakHandler();
// We just assume it was successful. Otherwise we had to parse
// the output stream data.
// The following happens on Mac:
// QByteArray msg = response.data.findChild("msg").data();
// if (1 || msg.startsWith("Error parsing breakpoint condition. "
// " Will try again when we hit the breakpoint.")) {
BreakpointResponse br = handler->response(id);
br.condition = handler->condition(id);
handler->setResponse(id, br);
changeBreakpoint(id); // Maybe there's more to do.
}
void GdbEngine::extractDataFromInfoBreak(const QString &output, BreakpointId id)
{
//qDebug() << output;
if (output.isEmpty())
return;
// "Num Type Disp Enb Address What
// 4 breakpoint keep y <MULTIPLE> 0x00000000004066ad
// 4.1 y 0x00000000004066ad in CTorTester
// at /data5/dev/ide/main/tests/manual/gdbdebugger/simple/app.cpp:124
// - or -
// everything on a single line on Windows for constructors of classes
// within namespaces.
// Sometimes the path is relative too.
// 2 breakpoint keep y <MULTIPLE> 0x0040168e
// 2.1 y 0x0040168e in MainWindow::MainWindow(QWidget*) at mainwindow.cpp:7
// 2.2 y 0x00401792 in MainWindow::MainWindow(QWidget*) at mainwindow.cpp:7
// tested in ../../../tests/auto/debugger/
QRegExp re(_("MULTIPLE.*(0x[0-9a-f]+) in (.*)\\s+at (.*):([\\d]+)([^\\d]|$)"));
re.setMinimal(true);
BreakpointResponse response;
response.fileName = _("<MULTIPLE>");
QString requestedFileName = breakHandler()->fileName(id);
if (re.indexIn(output) != -1) {
response.address = re.cap(1).toULongLong(0, 16);
response.functionName = re.cap(2).trimmed();
response.lineNumber = re.cap(4).toInt();
QString full = fullName(re.cap(3));
if (full.isEmpty()) {
// FIXME: This happens without UsePreciseBreakpoints regularly.
// We need to revive that "fill full name mapping bit by bit"
// approach of 1.2.x
//qDebug() << "NO FULL NAME KNOWN FOR" << re.cap(3);
full = cleanupFullName(re.cap(3));
if (full.isEmpty()) {
qDebug() << "FILE IS NOT RESOLVABLE" << re.cap(3);
full = re.cap(3); // FIXME: wrong, but prevents recursion
}
}
// The variable full could still contain, say "foo.cpp" when we asked
// for "/full/path/to/foo.cpp". In this case, using the requested
// instead of the acknowledged name makes sense as it will allow setting
// the marker in more cases.
if (requestedFileName.endsWith(full)) full = requestedFileName;
response.fileName = full;
} else {
qDebug() << "COULD NOT MATCH " << re.pattern() << " AND " << output;
response.number = -1; // <unavailable>
}
breakHandler()->setResponse(id, response);
}
void GdbEngine::handleBreakInfo(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
// Old-style output for multiple breakpoints, presumably in a
// constructor.
const BreakpointId id(response.cookie.toInt());
const QString str = QString::fromLocal8Bit(
response.data.findChild("consolestreamoutput").data());
extractDataFromInfoBreak(str, id);
}
}
void GdbEngine::handleInfoLine(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
// Old-style output: "Line 1102 of \"simple/app.cpp\" starts
// at address 0x80526aa <_Z10...+131> and ends at 0x80526b5
// <_Z10testQStackv+142>.\n"
QByteArray ba = response.data.findChild("consolestreamoutput").data();
const BreakpointId id = response.cookie.toInt();
const int pos = ba.indexOf(' ', 5);
if (ba.startsWith("Line ") && pos != -1) {
const int line = ba.mid(5, pos - 5).toInt();
BreakpointResponse br = breakHandler()->response(id);
br.lineNumber = line;
br.correctedLineNumber = line;
breakHandler()->setResponse(id, br);
}
}
}
bool GdbEngine::stateAcceptsBreakpointChanges() const
{
switch (state()) {
case InferiorSetupRequested:
case InferiorRunRequested:
case InferiorRunOk:
case InferiorStopRequested:
case InferiorStopOk:
return true;
default:
return false;
}
}
bool GdbEngine::acceptsBreakpoint(BreakpointId id) const
{
return DebuggerEngine::isCppBreakpoint(breakHandler()->breakpointData(id));
}
void GdbEngine::insertBreakpoint(BreakpointId id)
{
// Set up fallback in case of pending breakpoints which aren't handled
// by the MI interface.
BreakHandler *handler = breakHandler();
QTC_ASSERT(handler->state(id) == BreakpointInsertRequested, /**/);
handler->notifyBreakpointInsertProceeding(id);
if (handler->type(id) == Watchpoint) {
postCommand("watch " + addressSpec(handler->address(id)),
NeedsStop | RebuildBreakpointModel, CB(handleWatchInsert), id);
return;
}
QByteArray cmd;
if (handler->isTracepoint(id)) {
cmd = "-break-insert -a -f ";
} else if (m_isMacGdb) {
cmd = "-break-insert -l -1 -f ";
} else if (m_gdbAdapter->isTrkAdapter()) {
cmd = "-break-insert -h -f ";
} else if (m_gdbVersion >= 70000) {
int spec = handler->threadSpec(id);
cmd = "-break-insert ";
if (spec >= 0)
cmd += "-p " + QByteArray::number(spec);
cmd += " -f ";
} else if (m_gdbVersion >= 60800) {
// Probably some earlier version would work as well.
cmd = "-break-insert -f ";
} else {
cmd = "-break-insert ";
}
//if (!data->condition.isEmpty())
// cmd += "-c " + data->condition + ' ';
cmd += breakpointLocation(id);
postCommand(cmd, NeedsStop | RebuildBreakpointModel,
CB(handleBreakInsert1), id);
}
void GdbEngine::changeBreakpoint(BreakpointId id)
{
BreakHandler *handler = breakHandler();
const BreakpointParameters &data = handler->breakpointData(id);
QTC_ASSERT(data.type != UnknownType, return);
const BreakpointResponse &response = handler->response(id);
QTC_ASSERT(response.number > 0, return);
const QByteArray bpnr = QByteArray::number(response.number);
QTC_ASSERT(response.number > 0, return);
const BreakpointState state = handler->state(id);
if (state == BreakpointChangeRequested)
handler->notifyBreakpointChangeProceeding(id);
const BreakpointState state2 = handler->state(id);
QTC_ASSERT(state2 == BreakpointChangeProceeding, qDebug() << state2);
if (data.threadSpec != response.threadSpec) {
// The only way to change this seems to be to re-set the bp completely.
postCommand("-break-delete " + bpnr,
NeedsStop | RebuildBreakpointModel,
CB(handleBreakThreadSpec), id);
return;
}
if (!data.conditionsMatch(response.condition)) {
postCommand("condition " + bpnr + ' ' + data.condition,
NeedsStop | RebuildBreakpointModel,
CB(handleBreakCondition), id);
return;
}
if (data.ignoreCount != response.ignoreCount) {
postCommand("ignore " + bpnr + ' ' + QByteArray::number(data.ignoreCount),
NeedsStop | RebuildBreakpointModel,
CB(handleBreakIgnore), id);
return;
}
if (!data.enabled && response.enabled) {
postCommand("-break-disable " + bpnr,
NeedsStop | RebuildBreakpointModel,
CB(handleBreakDisable), id);
return;
} if (data.enabled && !response.enabled) {
postCommand("-break-enable " + bpnr,
NeedsStop | RebuildBreakpointModel,
CB(handleBreakEnable), id);
return;
}
handler->notifyBreakpointChangeOk(id);
attemptAdjustBreakpointLocation(id);
}
void GdbEngine::removeBreakpoint(BreakpointId id)
{
BreakHandler *handler = breakHandler();
QTC_ASSERT(handler->state(id) == BreakpointRemoveRequested, /**/);
handler->notifyBreakpointRemoveProceeding(id);
BreakpointResponse br = handler->response(id);
showMessage(_("DELETING BP %1 IN %2").arg(br.number)
.arg(handler->fileName(id)));
postCommand("-break-delete " + QByteArray::number(br.number),
NeedsStop | RebuildBreakpointModel);
// Pretend it succeeds without waiting for response. Feels better.
// FIXME: Really?
handler->notifyBreakpointRemoveOk(id);
}
//////////////////////////////////////////////////////////////////////
//
// Modules specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::loadSymbols(const QString &moduleName)
{
// FIXME: gdb does not understand quoted names here (tested with 6.8)
postCommand("sharedlibrary " + dotEscape(moduleName.toLocal8Bit()));
reloadModulesInternal();
reloadStack(true);
updateLocals();
}
void GdbEngine::loadAllSymbols()
{
postCommand("sharedlibrary .*");
reloadModulesInternal();
reloadStack(true);
updateLocals();
}
void GdbEngine::loadSymbolsForStack()
{
bool needUpdate = false;
const Modules &modules = modulesHandler()->modules();
foreach (const StackFrame &frame, stackHandler()->frames()) {
if (frame.function == _("??")) {
//qDebug() << "LOAD FOR " << frame.address;
foreach (const Module &module, modules) {
if (module.startAddress <= frame.address
&& frame.address < module.endAddress) {
postCommand("sharedlibrary "
+ dotEscape(module.moduleName.toLocal8Bit()));
needUpdate = true;
}
}
}
}
if (needUpdate) {
reloadModulesInternal();
reloadStack(true);
updateLocals(); }
}
void GdbEngine::requestModuleSymbols(const QString &moduleName)
{
QTemporaryFile tf(QDir::tempPath() + _("/gdbsymbols"));
if (!tf.open())
return;
QString fileName = tf.fileName();
tf.close();
postCommand("maint print msymbols " + fileName.toLocal8Bit()
+ " " + moduleName.toLocal8Bit(),
NeedsStop, CB(handleShowModuleSymbols),
QVariant(moduleName + QLatin1Char('@') + fileName));
}
void GdbEngine::handleShowModuleSymbols(const GdbResponse &response)
{
const QString cookie = response.cookie.toString();
const QString moduleName = cookie.section(QLatin1Char('@'), 0, 0);
const QString fileName = cookie.section(QLatin1Char('@'), 1, 1);
if (response.resultClass == GdbResultDone) {
Symbols rc;
QFile file(fileName);
file.open(QIODevice::ReadOnly);
// Object file /opt/dev/qt/lib/libQtNetworkMyns.so.4:
// [ 0] A 0x16bd64 _DYNAMIC moc_qudpsocket.cpp
// [12] S 0xe94680 _ZN4myns5QFileC1Ev section .plt myns::QFile::QFile()
foreach (const QByteArray &line, file.readAll().split('\n')) {
if (line.isEmpty())
continue;
if (line.at(0) != '[')
continue;
int posCode = line.indexOf(']') + 2;
int posAddress = line.indexOf("0x", posCode);
if (posAddress == -1)
continue;
int posName = line.indexOf(" ", posAddress);
int lenAddress = posName - posAddress - 1;
int posSection = line.indexOf(" section ");
int lenName = 0;
int lenSection = 0;
int posDemangled = 0;
if (posSection == -1) {
lenName = line.size() - posName;
posDemangled = posName;
} else {
lenName = posSection - posName;
posSection += 10;
posDemangled = line.indexOf(' ', posSection + 1);
if (posDemangled == -1) {
lenSection = line.size() - posSection;
} else {
lenSection = posDemangled - posSection;
posDemangled += 1;
}
}
int lenDemangled = 0;
if (posDemangled != -1)
lenDemangled = line.size() - posDemangled;
Symbol symbol;
symbol.state = _(line.mid(posCode, 1));
symbol.address = _(line.mid(posAddress, lenAddress));
symbol.name = _(line.mid(posName, lenName));
symbol.section = _(line.mid(posSection, lenSection));
symbol.demangled = _(line.mid(posDemangled, lenDemangled));
rc.push_back(symbol);
}
file.close();
file.remove(); debuggerCore()->showModuleSymbols(moduleName, rc);
} else {
showMessageBox(QMessageBox::Critical, tr("Cannot Read Symbols"),
tr("Cannot read symbols for module \"%1\".").arg(fileName));
}
}
void GdbEngine::reloadModules()
{
if (state() == InferiorRunOk || state() == InferiorStopOk)
reloadModulesInternal();
}
void GdbEngine::reloadModulesInternal()
{
m_modulesListOutdated = false;
postCommand("info shared", NeedsStop, CB(handleModulesList));
#if 0
if (m_gdbVersion < 70000 && !m_isMacGdb)
postCommand("set stop-on-solib-events 1");
#endif
}
void GdbEngine::handleModulesList(const GdbResponse &response)
{
Modules modules;
if (response.resultClass == GdbResultDone) {
// That's console-based output, likely Linux or Windows,
// but we can avoid the #ifdef here.
QString data = QString::fromLocal8Bit(
response.data.findChild("consolestreamoutput").data());
QTextStream ts(&data, QIODevice::ReadOnly);
while (!ts.atEnd()) {
QString line = ts.readLine();
Module module;
QString symbolsRead;
QTextStream ts(&line, QIODevice::ReadOnly);
if (line.startsWith(__("0x"))) {
ts >> module.startAddress >> module.endAddress >> symbolsRead;
module.moduleName = ts.readLine().trimmed();
module.symbolsRead =
(symbolsRead == __("Yes") ? Module::ReadOk : Module::ReadFailed);
modules.append(module);
} else if (line.trimmed().startsWith(__("No"))) {
// gdb 6.4 symbianelf
ts >> symbolsRead;
QTC_ASSERT(symbolsRead == __("No"), continue);
module.startAddress = 0;
module.endAddress = 0;
module.moduleName = ts.readLine().trimmed();
modules.append(module);
}
}
if (modules.isEmpty()) {
// Mac has^done,shlib-info={num="1",name="dyld",kind="-",
// dyld-addr="0x8fe00000",reason="dyld",requested-state="Y",
// state="Y",path="/usr/lib/dyld",description="/usr/lib/dyld",
// loaded_addr="0x8fe00000",slide="0x0",prefix="__dyld_"},
// shlib-info={...}...
foreach (const GdbMi &item, response.data.children()) {
Module module;
module.moduleName =
QString::fromLocal8Bit(item.findChild("path").data());
module.symbolsRead = (item.findChild("state").data() == "Y")
? Module::ReadOk : Module::ReadFailed;
module.startAddress =
item.findChild("loaded_addr").data().toULongLong(0, 0);
module.endAddress = 0; // FIXME: End address not easily available.
modules.append(module);
} }
}
modulesHandler()->setModules(modules);
}
void GdbEngine::examineModules()
{
foreach (Module module, modulesHandler()->modules()) {
if (module.symbolsType == Module::UnknownType) {
QProcess proc;
qDebug() << _("objdump -h \"%1\"").arg(module.moduleName);
proc.start(_("objdump -h \"%1\"").arg(module.moduleName));
if (!proc.waitForStarted())
continue;
if (!proc.waitForFinished())
continue;
QByteArray ba = proc.readAllStandardOutput();
if (ba.contains(".gdb_index"))
module.symbolsType = Module::FastSymbols;
else
module.symbolsType = Module::PlainSymbols;
modulesHandler()->updateModule(module.moduleName, module);
}
}
}
//////////////////////////////////////////////////////////////////////
//
// Source files specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::invalidateSourcesList()
{
m_modulesListOutdated = true;
m_sourcesListOutdated = true;
m_breakListOutdated = true;
}
void GdbEngine::reloadSourceFiles()
{
if ((state() == InferiorRunOk || state() == InferiorStopOk)
&& !m_sourcesListUpdating)
reloadSourceFilesInternal();
}
void GdbEngine::reloadSourceFilesInternal()
{
QTC_ASSERT(!m_sourcesListUpdating, /**/);
m_sourcesListUpdating = true;
postCommand("-file-list-exec-source-files", NeedsStop, CB(handleQuerySources));
#if 0
if (m_gdbVersion < 70000 && !m_isMacGdb)
postCommand("set stop-on-solib-events 1");
#endif
}
//////////////////////////////////////////////////////////////////////
//
// Stack specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::selectThread(int index)
{
threadsHandler()->setCurrentThread(index);
Threads threads = threadsHandler()->threads();
QTC_ASSERT(index < threads.size(), return); const int id = threads.at(index).id;
showStatusMessage(tr("Retrieving data for stack view thread 0x%1...")
.arg(id, 0, 16), 10000);
postCommand("-thread-select " + QByteArray::number(id), Discardable,
CB(handleStackSelectThread));
}
void GdbEngine::handleStackSelectThread(const GdbResponse &)
{
QTC_ASSERT(state() == InferiorUnrunnable || state() == InferiorStopOk, /**/);
showStatusMessage(tr("Retrieving data for stack view..."), 3000);
reloadStack(true); // Will reload registers.
updateLocals();
}
void GdbEngine::reloadFullStack()
{
PENDING_DEBUG("RELOAD FULL STACK");
postCommand("-stack-list-frames", Discardable, CB(handleStackListFrames),
QVariant::fromValue<StackCookie>(StackCookie(true, true)));
}
void GdbEngine::reloadStack(bool forceGotoLocation)
{
PENDING_DEBUG("RELOAD STACK");
QByteArray cmd = "-stack-list-frames";
int stackDepth = debuggerCore()->action(MaximalStackDepth)->value().toInt();
if (stackDepth && !m_gdbAdapter->isTrkAdapter())
cmd += " 0 " + QByteArray::number(stackDepth);
// FIXME: gdb 6.4 symbianelf likes to be asked twice. The first time it
// returns with "^error,msg="Previous frame identical to this frame
// (corrupt stack?)". Might be related to the fact that we can't
// access the memory belonging to the lower frames. But as we know
// this sometimes happens, ask the second time immediately instead
// of waiting for the first request to fail.
// FIXME: Seems to work with 6.8.
if (m_gdbAdapter->isTrkAdapter() && m_gdbVersion < 6.8)
postCommand(cmd);
postCommand(cmd, Discardable, CB(handleStackListFrames),
QVariant::fromValue<StackCookie>(StackCookie(false, forceGotoLocation)));
}
StackFrame GdbEngine::parseStackFrame(const GdbMi &frameMi, int level)
{
//qDebug() << "HANDLING FRAME:" << frameMi.toString();
StackFrame frame;
frame.level = level;
GdbMi fullName = frameMi.findChild("fullname");
if (fullName.isValid())
frame.file = cleanupFullName(QFile::decodeName(fullName.data()));
else
frame.file = QFile::decodeName(frameMi.findChild("file").data());
frame.function = _(frameMi.findChild("func").data());
frame.from = _(frameMi.findChild("from").data());
frame.line = frameMi.findChild("line").data().toInt();
frame.address = frameMi.findChild("addr").data().toULongLong(0, 16);
frame.usable = QFileInfo(frame.file).isReadable();
return frame;
}
void GdbEngine::handleStackListFrames(const GdbResponse &response)
{
bool handleIt = (m_isMacGdb || response.resultClass == GdbResultDone);
if (!handleIt) {
// That always happens on symbian gdb with
// ^error,data={msg="Previous frame identical to this frame (corrupt stack?)"
// logstreamoutput="Previous frame identical to this frame (corrupt stack?)\n"
//qDebug() << "LISTING STACK FAILED: " << response.toString();
reloadRegisters();
return; }
StackCookie cookie = response.cookie.value<StackCookie>();
QList<StackFrame> stackFrames;
GdbMi stack = response.data.findChild("stack");
if (!stack.isValid()) {
qDebug() << "FIXME: stack:" << stack.toString();
return;
}
int targetFrame = -1;
int n = stack.childCount();
for (int i = 0; i != n; ++i) {
stackFrames.append(parseStackFrame(stack.childAt(i), i));
const StackFrame &frame = stackFrames.back();
# if defined(Q_OS_WIN)
const bool isBogus =
// Assume this is wrong and points to some strange stl_algobase
// implementation. Happens on Karsten's XP system with Gdb 5.50
(frame.file.endsWith(__("/bits/stl_algobase.h")) && frame.line == 150)
// Also wrong. Happens on Vista with Gdb 5.50
|| (frame.function == __("operator new") && frame.line == 151);
// Immediately leave bogus frames.
if (targetFrame == -1 && isBogus) {
setTokenBarrier();
notifyInferiorRunRequested();
postCommand("-exec-finish", RunRequest, CB(handleExecuteContinue));
showStatusMessage(tr("Jumping out of bogus frame..."), 1000);
return;
}
# endif
// Initialize top frame to the first valid frame.
const bool isValid = frame.isUsable() && !frame.function.isEmpty();
if (isValid && targetFrame == -1)
targetFrame = i;
}
bool canExpand = !cookie.isFull
&& (n >= debuggerCore()->action(MaximalStackDepth)->value().toInt());
debuggerCore()->action(ExpandStack)->setEnabled(canExpand);
stackHandler()->setFrames(stackFrames, canExpand);
// We can't jump to any file if we don't have any frames.
if (stackFrames.isEmpty())
return;
// targetFrame contains the top most frame for which we have source
// information. That's typically the frame we'd like to jump to, with
// a few exceptions:
// Always jump to frame #0 when stepping by instruction.
if (debuggerCore()->boolSetting(OperateByInstruction))
targetFrame = 0;
// If there is no frame with source, jump to frame #0.
if (targetFrame == -1)
targetFrame = 0;
stackHandler()->setCurrentIndex(targetFrame);
activateFrame(targetFrame);
}
void GdbEngine::activateFrame(int frameIndex)
{
if (state() != InferiorStopOk && state() != InferiorUnrunnable) return;
StackHandler *handler = stackHandler();
if (frameIndex == handler->stackSize()) {
reloadFullStack();
return;
}
QTC_ASSERT(frameIndex < handler->stackSize(), return);
// Assuming the command always succeeds this saves a roundtrip.
// Otherwise the lines below would need to get triggered
// after a response to this -stack-select-frame here.
handler->setCurrentIndex(frameIndex);
QByteArray cmd = "-stack-select-frame";
//if (!m_currentThread.isEmpty())
// cmd += " --thread " + m_currentThread;
cmd += ' ';
cmd += QByteArray::number(frameIndex);
postCommand(cmd, Discardable, CB(handleStackSelectFrame));
gotoLocation(stackHandler()->currentFrame());
updateLocals();
reloadRegisters();
}
void GdbEngine::handleStackSelectFrame(const GdbResponse &response)
{
Q_UNUSED(response);
}
void GdbEngine::handleThreadInfo(const GdbResponse &response)
{
const int id = response.cookie.toInt();
if (response.resultClass == GdbResultDone) {
int currentThreadId;
const Threads threads =
ThreadsHandler::parseGdbmiThreads(response.data, ¤tThreadId);
threadsHandler()->setThreads(threads);
threadsHandler()->setCurrentThreadId(currentThreadId);
updateViews(); // Adjust Threads combobox.
if (m_hasInferiorThreadList && debuggerCore()->boolSetting(ShowThreadNames)) {
postCommand("threadnames " +
debuggerCore()->action(MaximalStackDepth)->value().toByteArray(),
Discardable, CB(handleThreadNames), id);
}
} else {
// Fall back for older versions: Try to get at least a list
// of running threads.
postCommand("-thread-list-ids", Discardable, CB(handleThreadListIds), id);
}
}
void GdbEngine::handleThreadListIds(const GdbResponse &response)
{
const int id = response.cookie.toInt();
// "72^done,{thread-ids={thread-id="2",thread-id="1"},number-of-threads="2"}
// In gdb 7.1+ additionally: current-thread-id="1"
const QList<GdbMi> items = response.data.findChild("thread-ids").children();
Threads threads;
for (int index = 0, n = items.size(); index != n; ++index) {
ThreadData thread;
thread.id = items.at(index).data().toInt();
threads.append(thread);
}
threadsHandler()->setThreads(threads);
threadsHandler()->setCurrentThreadId(id);
}
void GdbEngine::handleThreadNames(const GdbResponse &response){
if (response.resultClass == GdbResultDone) {
GdbMi contents = response.data.findChild("consolestreamoutput");
GdbMi names;
names.fromString(contents.data());
Threads threads = threadsHandler()->threads();
foreach (const GdbMi &name, names.children()) {
int id = name.findChild("id").data().toInt();
for (int index = 0, n = threads.size(); index != n; ++index) {
ThreadData & thread = threads[index];
if (thread.id == (quint64)id) {
thread.name = decodeData(name.findChild("value").data(),
name.findChild("valueencoded").data().toInt());
break;
}
}
}
threadsHandler()->setThreads(threads);
updateViews();
}
}
//////////////////////////////////////////////////////////////////////
//
// Snapshot specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::createSnapshot()
{
QString fileName;
QTemporaryFile tf(QDir::tempPath() + _("/gdbsnapshot"));
if (tf.open()) {
fileName = tf.fileName();
tf.close();
postCommand("gcore " + fileName.toLocal8Bit(),
NeedsStop, CB(handleMakeSnapshot), fileName);
} else {
showMessageBox(QMessageBox::Critical, tr("Snapshot Creation Error"),
tr("Cannot create snapshot file."));
}
}
void GdbEngine::handleMakeSnapshot(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
DebuggerStartParameters sp = startParameters();
sp.startMode = AttachCore;
sp.coreFile = response.cookie.toString();
//snapshot.setDate(QDateTime::currentDateTime());
StackFrames frames = stackHandler()->frames();
QString function = _("<unknown>");
if (!frames.isEmpty()) {
const StackFrame &frame = frames.at(0);
function = frame.function + _(":") + QString::number(frame.line);
}
sp.displayName = function + _(": ") + QDateTime::currentDateTime().toString();
sp.isSnapshot = true;
DebuggerRunControl *rc = DebuggerPlugin::createDebugger(sp);
DebuggerPlugin::startDebugger(rc);
} else {
QByteArray msg = response.data.findChild("msg").data();
showMessageBox(QMessageBox::Critical, tr("Snapshot Creation Error"),
tr("Cannot create snapshot:\n") + QString::fromLocal8Bit(msg));
}
}
//////////////////////////////////////////////////////////////////////
//
// Register specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::reloadRegisters()
{
if (!debuggerCore()->isDockVisible(_(Constants::DOCKWIDGET_REGISTER)))
return;
if (state() != InferiorStopOk && state() != InferiorUnrunnable)
return;
if (!m_registerNamesListed) {
postCommand("-data-list-register-names", CB(handleRegisterListNames));
m_registerNamesListed = true;
// FIXME: Maybe better completely re-do this logic in TRK adapter.
if (m_gdbAdapter->isTrkAdapter())
return;
}
if (m_gdbAdapter->isTrkAdapter()) {
m_gdbAdapter->trkReloadRegisters();
} else {
postCommand("-data-list-register-values x",
Discardable, CB(handleRegisterListValues));
}
}
void GdbEngine::setRegisterValue(int nr, const QString &value)
{
Register reg = registerHandler()->registers().at(nr);
//qDebug() << "NOT IMPLEMENTED: CHANGE REGISTER " << nr << reg.name << ":"
// << value;
postCommand("-var-delete \"R@\"");
postCommand("-var-create \"R@\" * $" + reg.name);
postCommand("-var-assign \"R@\" " + value.toLatin1());
postCommand("-var-delete \"R@\"");
//postCommand("-data-list-register-values d",
// Discardable, CB(handleRegisterListValues));
reloadRegisters();
}
void GdbEngine::handleRegisterListNames(const GdbResponse &response)
{
if (response.resultClass != GdbResultDone) {
m_registerNamesListed = false;
return;
}
Registers registers;
foreach (const GdbMi &item, response.data.findChild("register-names").children())
registers.append(Register(item.data()));
registerHandler()->setRegisters(registers);
if (m_gdbAdapter->isTrkAdapter())
m_gdbAdapter->trkReloadRegisters();
}
void GdbEngine::handleRegisterListValues(const GdbResponse &response)
{
if (response.resultClass != GdbResultDone)
return;
Registers registers = registerHandler()->registers();
// 24^done,register-values=[{number="0",value="0xf423f"},...]
const GdbMi values = response.data.findChild("register-values"); foreach (const GdbMi &item, values.children()) {
const int index = item.findChild("number").data().toInt();
if (index < registers.size()) {
Register ® = registers[index];
GdbMi val = item.findChild("value");
QByteArray ba;
bool handled = false;
if (val.data().startsWith("{")) {
int pos1 = val.data().indexOf("v2_int32");
if (pos1 == -1)
pos1 = val.data().indexOf("v4_int32");
if (pos1 != -1) {
// FIXME: This block wastes cycles.
pos1 = val.data().indexOf("{", pos1 + 1) + 1;
int pos2 = val.data().indexOf("}", pos1);
QByteArray ba2 = val.data().mid(pos1, pos2 - pos1);
foreach (QByteArray ba3, ba2.split(',')) {
ba3 = ba3.trimmed();
QTC_ASSERT(ba3.size() >= 3, continue);
QTC_ASSERT(ba3.size() <= 10, continue);
ba.prepend(QByteArray(10 - ba3.size(), '0'));
ba.prepend(ba3.mid(2));
}
ba.prepend("0x");
handled = true;
}
}
reg.value = _(handled ? ba : val.data());
}
}
registerHandler()->setAndMarkRegisters(registers);
}
//////////////////////////////////////////////////////////////////////
//
// Thread specific stuff
//
//////////////////////////////////////////////////////////////////////
bool GdbEngine::supportsThreads() const
{
// FSF gdb 6.3 crashes happily on -thread-list-ids. So don't use it.
// The test below is a semi-random pick, 6.8 works fine
return m_isMacGdb || m_gdbVersion > 60500;
}
//////////////////////////////////////////////////////////////////////
//
// Tooltip specific stuff
//
//////////////////////////////////////////////////////////////////////
bool GdbEngine::showToolTip()
{
const QByteArray iname = tooltipIName(m_toolTipExpression);
if (!debuggerCore()->boolSetting(UseToolTipsInMainEditor)) {
watchHandler()->removeData(iname);
return true;
}
const QModelIndex index = watchHandler()->itemIndex(iname);
if (!index.isValid()) {
watchHandler()->removeData(iname);
hideDebuggerToolTip();
return false;
}
showDebuggerToolTip(m_toolTipPos, index); return true;
}
void GdbEngine::setToolTipExpression(const QPoint &mousePos,
TextEditor::ITextEditor *editor, int cursorPos)
{
if (state() != InferiorStopOk || !isCppEditor(editor)) {
//qDebug() << "SUPPRESSING DEBUGGER TOOLTIP, INFERIOR NOT STOPPED "
// " OR NOT A CPPEDITOR";
return;
}
m_toolTipPos = mousePos;
int line, column;
QString exp = cppExpressionAt(editor, cursorPos, &line, &column);
// Extract the first identifier, everything else is considered
// too dangerous.
int pos1 = 0, pos2 = exp.size();
bool inId = false;
for (int i = 0; i != exp.size(); ++i) {
const QChar c = exp.at(i);
const bool isIdChar = c.isLetterOrNumber() || c.unicode() == '_';
if (inId && !isIdChar) {
pos2 = i;
break;
}
if (!inId && isIdChar) {
inId = true;
pos1 = i;
}
}
exp = exp.mid(pos1, pos2 - pos1);
if (!exp.isEmpty() && exp == m_toolTipExpression) {
showToolTip();
return;
}
m_toolTipExpression = exp;
// FIXME: enable caching
//if (showToolTip())
// return;
if (exp.isEmpty() || exp.startsWith(_c('#'))) {
//QToolTip::hideText();
return;
}
if (!hasLetterOrNumber(exp)) {
//QToolTip::showText(m_toolTipPos,
// tr("'%1' contains no identifier").arg(exp));
return;
}
if (isKeyWord(exp))
return;
if (exp.startsWith(_c('"')) && exp.endsWith(_c('"'))) {
//QToolTip::showText(m_toolTipPos, tr("String literal %1").arg(exp));
return;
}
if (exp.startsWith(__("++")) || exp.startsWith(__("--")))
exp = exp.mid(2);
if (exp.endsWith(__("++")) || exp.endsWith(__("--")))
exp = exp.mid(2);
if (exp.startsWith(_c('<')) || exp.startsWith(_c('[')))
return;
if (hasSideEffects(exp)) {
//QToolTip::showText(m_toolTipPos,
// tr("Cowardly refusing to evaluate expression '%1' "
// "with potential side effects").arg(exp));
return;
}
// Gdb crashes when creating a variable object with the name
// of the type of 'this'
/*
for (int i = 0; i != m_currentLocals.childCount(); ++i) {
if (m_currentLocals.childAt(i).exp == "this") {
qDebug() << "THIS IN ROW" << i;
if (m_currentLocals.childAt(i).type.startsWith(exp)) {
QToolTip::showText(m_toolTipPos,
tr("%1: type of current 'this'").arg(exp));
qDebug() << " TOOLTIP CRASH SUPPRESSED";
return;
}
break;
}
}
*/
if (isSynchronous()) {
updateLocals(QVariant());
return;
}
WatchData toolTip;
toolTip.exp = exp.toLatin1();
toolTip.name = exp;
toolTip.iname = tooltipIName(exp);
watchHandler()->removeData(toolTip.iname);
watchHandler()->insertData(toolTip);
}
//////////////////////////////////////////////////////////////////////
//
// Watch specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::reloadLocals()
{
setTokenBarrier();
updateLocals();
}
bool GdbEngine::hasDebuggingHelperForType(const QByteArray &type) const
{
if (!debuggerCore()->boolSetting(UseDebuggingHelpers))
return false;
if (m_gdbAdapter->dumperHandling() == AbstractGdbAdapter::DumperNotAvailable) {
// Inferior calls are not possible in gdb when looking at core files.
return type == "QString" || type.endsWith("::QString")
|| type == "QStringList" || type.endsWith("::QStringList");
}
if (m_debuggingHelperState != DebuggingHelperAvailable)
return false;
// Simple types.
return m_dumperHelper.type(type) != QtDumperHelper::UnknownType;
}
void GdbEngine::updateWatchData(const WatchData &data, const WatchUpdateFlags &flags)
{
if (isSynchronous()) {
// This should only be called for fresh expanded items, not for
// items that had their children retrieved earlier.
//qDebug() << "\nUPDATE WATCH DATA: " << data.toString() << "\n";
#if 0
WatchData data1 = data;
data1.setAllUnneeded();
insertData(data1);
rebuildModel();
#else
if (data.iname.endsWith("."))
return;
// Avoid endless loops created by faulty dumpers.
QByteArray processedName = "1-" + data.iname;
//qDebug() << "PROCESSED NAMES: " << processedName << m_processedNames;
if (m_processedNames.contains(processedName)) {
WatchData data1 = data;
showMessage(_("<Breaking endless loop for " + data.iname + '>'),
LogMiscInput);
data1.setAllUnneeded();
data1.setValue(_("<unavailable>"));
data1.setHasChildren(false);
insertData(data1);
return;
}
m_processedNames.insert(processedName);
// FIXME: Is this sufficient when "external" changes are
// triggered e.g. by manually entered command in the gdb console?
//qDebug() << "TRY PARTIAL: " << flags.tryIncremental
// << hasPython()
// << (m_pendingWatchRequests == 0)
// << (m_pendingBreakpointRequests == 0);
bool tryPartial = flags.tryIncremental
&& hasPython()
&& m_pendingWatchRequests == 0
&& m_pendingBreakpointRequests == 0;
if (tryPartial)
updateLocalsPython(true, data.iname);
else
updateLocals();
#endif
} else {
// Bump requests to avoid model rebuilding during the nested
// updateWatchModel runs.
++m_pendingWatchRequests;
PENDING_DEBUG("UPDATE WATCH BUMPS PENDING UP TO " << m_pendingWatchRequests);
#if 1
QMetaObject::invokeMethod(this, "updateWatchDataHelper",
Qt::QueuedConnection, Q_ARG(WatchData, data));
#else
updateWatchDataHelper(data);
#endif
}
}
void GdbEngine::updateWatchDataHelper(const WatchData &data)
{
//m_pendingRequests = 0;
PENDING_DEBUG("UPDATE WATCH DATA");
# if DEBUG_PENDING
//qDebug() << "##############################################";
qDebug() << "UPDATE MODEL, FOUND INCOMPLETE:"; //qDebug() << data.toString();
# endif
updateSubItemClassic(data);
//PENDING_DEBUG("INTERNAL TRIGGERING UPDATE WATCH MODEL");
--m_pendingWatchRequests;
PENDING_DEBUG("UPDATE WATCH DONE BUMPS PENDING DOWN TO " << m_pendingWatchRequests);
if (m_pendingWatchRequests <= 0)
rebuildWatchModel();
}
void GdbEngine::rebuildWatchModel()
{
static int count = 0;
++count;
if (!isSynchronous())
m_processedNames.clear();
PENDING_DEBUG("REBUILDING MODEL" << count);
if (debuggerCore()->boolSetting(LogTimeStamps))
showMessage(LogWindow::logTimeStamp(), LogMiscInput);
showMessage(_("<Rebuild Watchmodel %1>").arg(count), LogMiscInput);
showStatusMessage(tr("Finished retrieving data"), 400);
watchHandler()->endCycle();
showToolTip();
}
static QByteArray arrayFillCommand(const char *array, const QByteArray ¶ms)
{
QString buf;
buf.sprintf("set {char[%d]} &%s = {", params.size(), array);
QByteArray encoded;
encoded.append(buf.toLocal8Bit());
const int size = params.size();
for (int i = 0; i != size; ++i) {
buf.sprintf("%d,", int(params[i]));
encoded.append(buf.toLocal8Bit());
}
encoded[encoded.size() - 1] = '}';
return encoded;
}
void GdbEngine::sendWatchParameters(const QByteArray ¶ms0)
{
QByteArray params = params0;
params.append('\0');
const QByteArray inBufferCmd = arrayFillCommand("qDumpInBuffer", params);
params.replace('\0','!');
showMessage(QString::fromUtf8(params), LogMiscInput);
params.clear();
params.append('\0');
const QByteArray outBufferCmd = arrayFillCommand("qDumpOutBuffer", params);
postCommand(inBufferCmd);
postCommand(outBufferCmd);
}
void GdbEngine::handleVarAssign(const GdbResponse &)
{
// Everything might have changed, force re-evaluation.
setTokenBarrier();
updateLocals();
}
void GdbEngine::handleVarCreate(const GdbResponse &response)
{
WatchData data = response.cookie.value<WatchData>();
// Happens e.g. when we already issued a var-evaluate command.
if (!data.isValid()) return;
//qDebug() << "HANDLE VARIABLE CREATION:" << data.toString();
if (response.resultClass == GdbResultDone) {
data.variable = data.iname;
setWatchDataType(data, response.data.findChild("type"));
if (watchHandler()->isExpandedIName(data.iname)
&& !response.data.findChild("children").isValid())
data.setChildrenNeeded();
else
data.setChildrenUnneeded();
setWatchDataChildCount(data, response.data.findChild("numchild"));
insertData(data);
} else {
data.setError(QString::fromLocal8Bit(response.data.findChild("msg").data()));
if (data.isWatcher()) {
data.value = WatchData::msgNotInScope();
data.type = " ";
data.setAllUnneeded();
data.setHasChildren(false);
data.valueEnabled = false;
data.valueEditable = false;
insertData(data);
}
}
}
void GdbEngine::handleDebuggingHelperSetup(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
} else {
QString msg = QString::fromLocal8Bit(response.data.findChild("msg").data());
showStatusMessage(tr("Custom dumper setup: %1").arg(msg), 10000);
}
}
void GdbEngine::updateLocals(const QVariant &cookie)
{
m_pendingWatchRequests = 0;
m_pendingBreakpointRequests = 0;
if (hasPython())
updateLocalsPython(false, QByteArray());
else
updateLocalsClassic(cookie);
updateMemoryViews();
}
// Parse a local variable from GdbMi.
WatchData GdbEngine::localVariable(const GdbMi &item,
const QStringList &uninitializedVariables,
QMap<QByteArray, int> *seen)
{
// Local variables of inlined code are reported as
// 26^done,locals={varobj={exp="this",value="",name="var4",exp="this",
// numchild="1",type="const QtSharedPointer::Basic<CPlusPlus::..."}}
// We do not want these at all. Current hypotheses is that those
// "spurious" locals have _two_ "exp" field. Try to filter them:
QByteArray name;
if (m_isMacGdb) {
int numExps = 0;
foreach (const GdbMi &child, item.children())
numExps += int(child.name() == "exp");
if (numExps > 1)
return WatchData();
name = item.findChild("exp").data();
} else {
name = item.findChild("name").data();
}
const QMap<QByteArray, int>::iterator it = seen->find(name);
if (it != seen->end()) { const int n = it.value();
++(it.value());
WatchData data;
QString nam = _(name);
data.iname = "local." + name + QByteArray::number(n + 1);
data.name = WatchData::shadowedName(nam, n);
if (uninitializedVariables.contains(data.name)) {
data.setError(WatchData::msgNotInScope());
return data;
}
setWatchDataValue(data, item);
//: Type of local variable or parameter shadowed by another
//: variable of the same name in a nested block.
data.setType(GdbEngine::tr("<shadowed>").toUtf8());
data.setHasChildren(false);
return data;
}
seen->insert(name, 1);
WatchData data;
QString nam = _(name);
data.iname = "local." + name;
data.name = nam;
data.exp = name;
setWatchDataType(data, item.findChild("type"));
if (uninitializedVariables.contains(data.name)) {
data.setError(WatchData::msgNotInScope());
return data;
}
if (isSynchronous()) {
setWatchDataValue(data, item);
// We know that the complete list of children is
// somewhere in the response.
data.setChildrenUnneeded();
} else {
// Set value only directly if it is simple enough, otherwise
// pass through the insertData() machinery.
if (isIntOrFloatType(data.type) || isPointerType(data.type))
setWatchDataValue(data, item);
if (isSymbianIntType(data.type)) {
setWatchDataValue(data, item);
data.setHasChildren(false);
}
}
if (!watchHandler()->isExpandedIName(data.iname))
data.setChildrenUnneeded();
GdbMi t = item.findChild("numchild");
if (t.isValid())
data.setHasChildren(t.data().toInt() > 0);
else if (isPointerType(data.type) || data.name == __("this"))
data.setHasChildren(true);
return data;
}
void GdbEngine::insertData(const WatchData &data0)
{
PENDING_DEBUG("INSERT DATA" << data0.toString());
WatchData data = data0;
if (data.value.startsWith(__("mi_cmd_var_create:"))) {
qDebug() << "BOGUS VALUE:" << data.toString();
return;
}
watchHandler()->insertData(data);
}
void GdbEngine::assignValueInDebugger(const WatchData *,
const QString &expression, const QVariant &value)
{
postCommand("-var-delete assign"); postCommand("-var-create assign * " + expression.toLatin1());
postCommand("-var-assign assign " + GdbMi::escapeCString(value.toString().toLatin1()),
Discardable, CB(handleVarAssign));
}
void GdbEngine::watchPoint(const QPoint &pnt)
{
//qDebug() << "WATCH " << pnt;
QByteArray x = QByteArray::number(pnt.x());
QByteArray y = QByteArray::number(pnt.y());
postCommand("call (void*)watchPoint(" + x + ',' + y + ')',
NeedsStop, CB(handleWatchPoint));
}
void GdbEngine::handleWatchPoint(const GdbResponse &response)
{
//qDebug() << "HANDLE WATCH POINT:" << response.toString();
if (response.resultClass == GdbResultDone) {
GdbMi contents = response.data.findChild("consolestreamoutput");
// "$5 = (void *) 0xbfa7ebfc\n"
QString str = _(parsePlainConsoleStream(response));
// "(void *) 0xbfa7ebfc"
QString addr = str.mid(9);
QByteArray ns = m_dumperHelper.qtNamespace();
QByteArray type = ns.isEmpty() ? "QWidget*" : ("'" + ns + "QWidget'*");
QString exp = _("(*(%1)%2)").arg(_(type)).arg(addr);
watchHandler()->watchExpression(exp);
}
}
struct MemoryAgentCookie
{
MemoryAgentCookie() : agent(0), token(0), address(0) {}
MemoryAgentCookie(MemoryAgent *agent_, QObject *token_, quint64 address_)
: agent(agent_), token(token_), address(address_)
{}
QPointer<MemoryAgent> agent;
QPointer<QObject> token;
quint64 address;
};
void GdbEngine::fetchMemory(MemoryAgent *agent, QObject *token, quint64 addr,
quint64 length)
{
//qDebug() << "GDB MEMORY FETCH" << agent << addr << length;
postCommand("-data-read-memory " + QByteArray::number(addr) + " x 1 1 "
+ QByteArray::number(length),
NeedsStop, CB(handleFetchMemory),
QVariant::fromValue(MemoryAgentCookie(agent, token, addr)));
}
void GdbEngine::handleFetchMemory(const GdbResponse &response)
{
// ^done,addr="0x08910c88",nr-bytes="16",total-bytes="16",
// next-row="0x08910c98",prev-row="0x08910c78",next-page="0x08910c98",
// prev-page="0x08910c78",memory=[{addr="0x08910c88",
// data=["1","0","0","0","5","0","0","0","0","0","0","0","0","0","0","0"]}]
MemoryAgentCookie ac = response.cookie.value<MemoryAgentCookie>();
QTC_ASSERT(ac.agent, return);
QByteArray ba;
GdbMi memory = response.data.findChild("memory");
QTC_ASSERT(memory.children().size() <= 1, return);
if (memory.children().isEmpty())
return;
GdbMi memory0 = memory.children().at(0); // we asked for only one 'row'
GdbMi data = memory0.findChild("data");
foreach (const GdbMi &child, data.children()) {
bool ok = true;
unsigned char c = '?'; c = child.data().toUInt(&ok, 0);
QTC_ASSERT(ok, return);
ba.append(c);
}
ac.agent->addLazyData(ac.token, ac.address, ba);
}
class DisassemblerAgentCookie
{
public:
DisassemblerAgentCookie() : agent(0), attempts(0) {}
DisassemblerAgentCookie(DisassemblerAgent *agent_)
: agent(agent_), attempts(0)
{}
public:
QPointer<DisassemblerAgent> agent;
int attempts;
};
// FIXME: add agent->frame() accessor and use that
void GdbEngine::fetchDisassembler(DisassemblerAgent *agent)
{
fetchDisassemblerByCli(agent, agent->isMixed());
/*
if (agent->isMixed()) {
// Disassemble full function:
const StackFrame &frame = agent->frame();
QByteArray cmd = "-data-disassemble"
" -f " + frame.file.toLocal8Bit() +
" -l " + QByteArray::number(frame.line) + " -n -1 -- 1";
postCommand(cmd, Discardable, CB(handleFetchDisassemblerByLine),
QVariant::fromValue(DisassemblerAgentCookie(agent)));
} else {
fetchDisassemblerByAddress(agent, true);
}
*/
}
void GdbEngine::fetchDisassemblerByAddress(const DisassemblerAgentCookie &ac0,
bool useMixedMode)
{
DisassemblerAgentCookie ac = ac0;
QTC_ASSERT(ac.agent, return);
const quint64 address = ac.agent->address();
QByteArray start = QByteArray::number(address - 20, 16);
QByteArray end = QByteArray::number(address + 100, 16);
// -data-disassemble [ -s start-addr -e end-addr ]
// | [ -f filename -l linenum [ -n lines ] ] -- mode
++ac.attempts;
if (useMixedMode)
postCommand("-data-disassemble -s 0x" + start + " -e 0x" + end + " -- 1",
Discardable, CB(handleFetchDisassemblerByAddress1),
QVariant::fromValue(ac));
else
postCommand("-data-disassemble -s 0x" + start + " -e 0x" + end + " -- 0",
Discardable, CB(handleFetchDisassemblerByAddress0),
QVariant::fromValue(ac));
}
void GdbEngine::fetchDisassemblerByCli(const DisassemblerAgentCookie &ac0,
bool useMixedMode)
{
DisassemblerAgentCookie ac = ac0;
QTC_ASSERT(ac.agent, return);
const quint64 address = ac.agent->address();
QByteArray cmd = "disassemble ";
if (useMixedMode && m_gdbVersion >= 60850)
cmd += "/m ";
cmd += " 0x"; cmd += QByteArray::number(address, 16);
++ac.attempts;
postCommand(cmd, Discardable, CB(handleFetchDisassemblerByCli),
QVariant::fromValue(ac));
}
void GdbEngine::fetchDisassemblerByAddressCli(const DisassemblerAgentCookie &ac0)
{
DisassemblerAgentCookie ac = ac0;
QTC_ASSERT(ac.agent, return);
const quint64 address = ac.agent->address();
QByteArray start = QByteArray::number(address - 20, 16);
QByteArray end = QByteArray::number(address + 100, 16);
// There have been changes to the syntax sometime between 7.0 and 7.1.
// As it is unclear how a given incarnation of gdb behaves without
// actually calling the command, try both.
const char sep = (ac.attempts % 2) ? ',' : ' ';
QByteArray cmd = "disassemble 0x" + start + sep + "0x" + end;
++ac.attempts;
postCommand(cmd, Discardable, CB(handleFetchDisassemblerByCli),
QVariant::fromValue(ac));
}
static DisassemblerLine parseLine(const GdbMi &line)
{
DisassemblerLine dl;
QByteArray address = line.findChild("address").data();
//QByteArray funcName = line.findChild("func-name").data();
//QByteArray offset = line.findChild("offset").data();
dl.address = address.toULongLong();
//ba += funcName + "+" + offset + " ";
//ba += QByteArray(30 - funcName.size() - offset.size(), ' ');
dl.data = _(line.findChild("inst").data());
return dl;
}
DisassemblerLines GdbEngine::parseDisassembler(const GdbMi &lines)
{
// ^done,data={asm_insns=[src_and_asm_line={line="1243",file=".../app.cpp",
// line_asm_insn=[{address="0x08054857",func-name="main",offset="27",
// inst="call 0x80545b0 <_Z13testQFileInfov>"}]},
// src_and_asm_line={line="1244",file=".../app.cpp",
// line_asm_insn=[{address="0x0805485c",func-name="main",offset="32",
//inst="call 0x804cba1 <_Z11testObject1v>"}]}]}
// - or -
// ^done,asm_insns=[
// {address="0x0805acf8",func-name="...",offset="25",inst="and $0xe8,%al"},
// {address="0x0805acfa",func-name="...",offset="27",inst="pop %esp"},
QStringList fileContents;
bool fileLoaded = false;
DisassemblerLines result;
// FIXME: Performance?
foreach (const GdbMi &child, lines.children()) {
if (child.hasName("src_and_asm_line")) {
// Mixed mode.
if (!fileLoaded) {
QString fileName = QFile::decodeName(child.findChild("file").data());
fileName = cleanupFullName(fileName);
QFile file(fileName);
file.open(QIODevice::ReadOnly);
QTextStream ts(&file);
fileContents = ts.readAll().split(QLatin1Char('\n'));
fileLoaded = true;
}
int line = child.findChild("line").data().toInt();
if (line >= 1 && line <= fileContents.size())
result.appendComment(fileContents.at(line - 1));
GdbMi insn = child.findChild("line_asm_insn"); foreach (const GdbMi &item, insn.children())
result.appendLine(parseLine(item));
} else {
// The non-mixed version.
result.appendLine(parseLine(child));
}
}
return result;
}
void GdbEngine::handleFetchDisassemblerByLine(const GdbResponse &response)
{
DisassemblerAgentCookie ac = response.cookie.value<DisassemblerAgentCookie>();
QTC_ASSERT(ac.agent, return);
if (response.resultClass == GdbResultDone) {
GdbMi lines = response.data.findChild("asm_insns");
if (lines.children().isEmpty())
fetchDisassemblerByAddress(ac, true);
else if (lines.children().size() == 1
&& lines.childAt(0).findChild("line").data() == "0")
fetchDisassemblerByAddress(ac, true);
else {
DisassemblerLines dlines = parseDisassembler(lines);
if (dlines.coversAddress(ac.agent->address())) {
// All is well.
ac.agent->setContents(dlines);
} else {
// Can happen e.g. for initializer list on symbian/rvct where
// we get a file name and line number but where the 'fully
// disassembled function' does not cover the code in the
// initializer list. Fall back needed:
//fetchDisassemblerByAddress(ac.agent, true);
fetchDisassemblerByCli(ac, true);
}
}
} else {
// 536^error,msg="mi_cmd_disassemble: Invalid line number"
QByteArray msg = response.data.findChild("msg").data();
if (msg == "mi_cmd_disassemble: Invalid line number"
|| msg.startsWith("Cannot access memory at address"))
fetchDisassemblerByAddress(ac, true);
else
showStatusMessage(tr("Disassembler failed: %1")
.arg(QString::fromLocal8Bit(msg)), 5000);
}
}
void GdbEngine::handleFetchDisassemblerByAddress1(const GdbResponse &response)
{
DisassemblerAgentCookie ac = response.cookie.value<DisassemblerAgentCookie>();
QTC_ASSERT(ac.agent, return);
if (response.resultClass == GdbResultDone) {
GdbMi lines = response.data.findChild("asm_insns");
if (lines.children().isEmpty())
fetchDisassemblerByAddress(ac, false);
else {
DisassemblerLines dlines = parseDisassembler(lines);
if (dlines.coversAddress(ac.agent->address())) {
ac.agent->setContents(dlines);
} else {
showMessage(_("FALL BACK TO NON-MIXED"));
fetchDisassemblerByAddress(ac, false);
}
}
} else {
// 26^error,msg="Cannot access memory at address 0x801ca308"
QByteArray msg = response.data.findChild("msg").data();
showStatusMessage(tr("Disassembler failed: %1") .arg(QString::fromLocal8Bit(msg)), 5000);
}
}
void GdbEngine::handleFetchDisassemblerByAddress0(const GdbResponse &response)
{
DisassemblerAgentCookie ac = response.cookie.value<DisassemblerAgentCookie>();
QTC_ASSERT(ac.agent, return);
if (response.resultClass == GdbResultDone) {
GdbMi lines = response.data.findChild("asm_insns");
ac.agent->setContents(parseDisassembler(lines));
} else {
QByteArray msg = response.data.findChild("msg").data();
showStatusMessage(tr("Disassembler failed: %1")
.arg(QString::fromLocal8Bit(msg)), 5000);
}
}
void GdbEngine::handleFetchDisassemblerByCli(const GdbResponse &response)
{
DisassemblerAgentCookie ac = response.cookie.value<DisassemblerAgentCookie>();
QTC_ASSERT(ac.agent, return);
if (response.resultClass == GdbResultDone) {
// Apple's gdb produces MI output even for CLI commands.
// FIXME: Check whether wrapping this into -interpreter-exec console
// (i.e. usgind the 'ConsoleCommand' GdbCommandFlag makes a
// difference.
GdbMi lines = response.data.findChild("asm_insns");
if (lines.isValid()) {
ac.agent->setContents(parseDisassembler(lines));
} else {
const QString someSpace = _(" ");
// First line is something like
// "Dump of assembler code from 0xb7ff598f to 0xb7ff5a07:"
GdbMi output = response.data.findChild("consolestreamoutput");
DisassemblerLines dlines;
QByteArray lastFunction;
foreach (const QByteArray &line0, output.data().split('\n')) {
QByteArray line = line0.trimmed();
if (line.startsWith("=> "))
line = line.mid(3);
if (line.isEmpty())
continue;
if (line.startsWith("Current language:"))
continue;
if (line.startsWith("Dump of assembler"))
continue;
if (line.startsWith("The current source"))
continue;
if (line.startsWith("End of assembler"))
continue;
if (line.startsWith("0x")) {
int pos1 = line.indexOf('<') + 1;
int pos2 = line.indexOf('+', pos1);
int pos3 = line.indexOf('>', pos1);
if (pos1 < pos2 && pos2 < pos3) {
QByteArray function = line.mid(pos1, pos2 - pos1);
if (function != lastFunction) {
dlines.appendComment(QString());
dlines.appendComment(_("Function: ") + _(function));
lastFunction = function;
}
line.replace(pos1, pos2 - pos1, "");
}
dlines.appendLine(DisassemblerLine(_(line)));
continue;
}
dlines.appendComment(someSpace + _(line)); }
if (dlines.size())
ac.agent->setContents(dlines);
else
fetchDisassemblerByAddressCli(ac);
}
} else {
QByteArray msg = response.data.findChild("msg").data();
//76^error,msg="No function contains program counter for selected..."
//76^error,msg="No function contains specified address."
//>568^error,msg="Line number 0 out of range;
if (ac.attempts < 4 // Try once more.
&& (msg.startsWith("No function ") || msg.startsWith("Line number ")))
fetchDisassemblerByAddressCli(ac);
else
showStatusMessage(tr("Disassembler failed: %1")
.arg(QString::fromLocal8Bit(msg)), 5000);
}
}
//
// Starting up & shutting down
//
bool GdbEngine::startGdb(const QStringList &args, const QString &gdb, const QString &settingsIdHint)
{
gdbProc()->disconnect(); // From any previous runs
m_gdb = QString::fromLocal8Bit(qgetenv("QTC_DEBUGGER_PATH"));
if (m_gdb.isEmpty() && startParameters().startMode != StartRemoteGdb)
m_gdb = debuggerCore()->gdbBinaryForToolChain(startParameters().toolChainType);
if (m_gdb.isEmpty())
m_gdb = gdb;
if (m_gdb.isEmpty()) {
handleAdapterStartFailed(
msgNoBinaryForToolChain(startParameters().toolChainType),
GdbOptionsPage::settingsId());
return false;
}
QStringList gdbArgs;
gdbArgs << _("-i");
gdbArgs << _("mi");
if (!debuggerCore()->boolSetting(LoadGdbInit))
gdbArgs << _("-n");
gdbArgs += args;
#ifdef Q_OS_WIN
// Set python path. By convention, python is located below gdb executable.
// Extend the environment set on the process in startAdapter().
const QFileInfo fi(m_gdb);
if (!fi.isAbsolute()) {
showMessage(_("GDB %1 DOES NOT HAVE ABSOLUTE LOCATION.").arg(m_gdb));
const QString msg = tr("The gdb location must be given as an "
"absolute path in the debugger settings.");
handleAdapterStartFailed(msg, settingsIdHint);
return false;
}
const QString winPythonVersion = QLatin1String(winPythonVersionC);
const QDir dir = fi.absoluteDir();
QProcessEnvironment environment = gdbProc()->processEnvironment();
const QString pythonPathVariable = QLatin1String("PYTHONPATH");
QString pythonPath;
const QString environmentPythonPath = environment.value(pythonPathVariable);
if (dir.exists(winPythonVersion)) {
pythonPath = QDir::toNativeSeparators(dir.absoluteFilePath(winPythonVersion));
} else if (dir.exists(QLatin1String("lib"))) { // Needed for our gdb 7.2 packages
pythonPath = QDir::toNativeSeparators(dir.absoluteFilePath(QLatin1String("lib"))); } else {
pythonPath = environmentPythonPath;
}
if (pythonPath.isEmpty()) {
const QString nativeGdb = QDir::toNativeSeparators(m_gdb);
showMessage(_("GDB %1 CANNOT FIND THE PYTHON INSTALLATION.").arg(nativeGdb));
showStatusMessage(_("%1 cannot find python").arg(nativeGdb));
const QString msg = tr("The gdb installed at %1 cannot "
"find a valid python installation in its %2 subdirectory.\n"
"You may set the PYTHONPATH to your installation.")
.arg(nativeGdb).arg(winPythonVersion);
handleAdapterStartFailed(msg, settingsIdHint);
return false;
}
showMessage(_("Python path: %1").arg(pythonPath), LogMisc);
// Apply to process
if (pythonPath != environmentPythonPath) {
environment.insert(pythonPathVariable, pythonPath);
gdbProc()->setProcessEnvironment(environment);
}
#endif
connect(gdbProc(), SIGNAL(error(QProcess::ProcessError)),
SLOT(handleGdbError(QProcess::ProcessError)));
connect(gdbProc(), SIGNAL(finished(int, QProcess::ExitStatus)),
SLOT(handleGdbFinished(int, QProcess::ExitStatus)));
connect(gdbProc(), SIGNAL(readyReadStandardOutput()),
SLOT(readGdbStandardOutput()));
connect(gdbProc(), SIGNAL(readyReadStandardError()),
SLOT(readGdbStandardError()));
showMessage(_("STARTING ") + m_gdb + _(" ") + gdbArgs.join(_(" ")));
gdbProc()->start(m_gdb, gdbArgs);
if (!gdbProc()->waitForStarted()) {
const QString msg = errorMessage(QProcess::FailedToStart);
handleAdapterStartFailed(msg, settingsIdHint);
return false;
}
showMessage(_("GDB STARTED, INITIALIZING IT"));
postCommand("show version", CB(handleShowVersion));
//postCommand("-enable-timings");
//postCommand("set print static-members off"); // Seemingly doesn't work.
//postCommand("set debug infrun 1");
//postCommand("define hook-stop\n-thread-list-ids\n-stack-list-frames\nend");
//postCommand("define hook-stop\nprint 4\nend");
//postCommand("define hookpost-stop\nprint 5\nend");
//postCommand("define hook-call\nprint 6\nend");
//postCommand("define hookpost-call\nprint 7\nend");
//postCommand("set print object on"); // works with CLI, but not MI
//postCommand("set step-mode on"); // we can't work with that yes
//postCommand("set exec-done-display on");
//postCommand("set print pretty on");
//postCommand("set confirm off");
//postCommand("set pagination off");
// The following does not work with 6.3.50-20050815 (Apple version gdb-1344)
// (Mac OS 10.6), but does so for gdb-966 (10.5):
//postCommand("set print inferior-events 1");
postCommand("set breakpoint pending on");
postCommand("set print elements 10000");
// Produces a few messages during symtab loading
//postCommand("set verbose on");
//postCommand("set substitute-path /var/tmp/qt-x11-src-4.5.0 "
// "/home/sandbox/qtsdk-2009.01/qt");
// one of the following is needed to prevent crashes in gdb on code like:
// template <class T> T foo() { return T(0); }
// int main() { return foo<int>(); }
// (gdb) call 'int foo<int>'()
// /build/buildd/gdb-6.8/gdb/valops.c:2069: internal-error:
postCommand("set overload-resolution off");
//postCommand(_("set demangle-style none"));
// From the docs:
// Stop means reenter debugger if this signal happens (implies print).
// Print means print a message if this signal happens.
// Pass means let program see this signal;
// otherwise program doesn't know.
// Pass and Stop may be combined.
// We need "print" as otherwise we will get no feedback whatsoever
// when Custom DebuggingHelper crash (which happen regularly when accessing
// uninitialized variables).
postCommand("handle SIGSEGV nopass stop print");
// This is useful to kill the inferior whenever gdb dies.
//postCommand(_("handle SIGTERM pass nostop print"));
postCommand("set unwindonsignal on");
//postCommand("pwd");
postCommand("set width 0");
postCommand("set height 0");
if (false && m_isMacGdb) {
// FIXME: m_isMacGdb is only known after handleShowVersion!
// also, setting load-rules seems to be only possible after 'file'
postCommand("-gdb-set inferior-auto-start-cfm off");
postCommand("-gdb-set sharedLibrary load-rules "
"dyld \".*libSystem.*\" all "
"dyld \".*libauto.*\" all "
"dyld \".*AppKit.*\" all "
"dyld \".*PBGDBIntrospectionSupport.*\" all "
"dyld \".*Foundation.*\" all "
"dyld \".*CFDataFormatters.*\" all "
"dyld \".*libobjc.*\" all "
"dyld \".*CarbonDataFormatters.*\" all");
} else {
// Work around http://bugreports.qt.nokia.com/browse/QTCREATORBUG-2004
postCommand("maintenance set internal-warning quit no", ConsoleCommand);
postCommand("maintenance set internal-error quit no", ConsoleCommand);
// We know that we don't have Python on Mac.
loadPythonDumpers();
}
QString scriptFileName = debuggerCore()->stringSetting(GdbScriptFile);
if (!scriptFileName.isEmpty()) {
if (QFileInfo(scriptFileName).isReadable()) {
postCommand("source " + scriptFileName.toLocal8Bit());
} else {
showMessageBox(QMessageBox::Warning,
tr("Cannot find debugger initialization script"),
tr("The debugger settings point to a script file at '%1' "
"which is not accessible. If a script file is not needed, "
"consider clearing that entry to avoid this warning. "
).arg(scriptFileName));
}
}
return true;
}
void GdbEngine::loadPythonDumpers()
{
const QByteArray dumperSourcePath =
Core::ICore::instance()->resourcePath().toLocal8Bit() + "/gdbmacros/";
postCommand("python execfile('" + dumperSourcePath + "dumper.py')",
ConsoleCommand|NonCriticalResponse);
postCommand("python execfile('" + dumperSourcePath + "gdbmacros.py')",
ConsoleCommand|NonCriticalResponse);
postCommand("bbsetup",
ConsoleCommand, CB(handleHasPython));
}
void GdbEngine::handleGdbError(QProcess::ProcessError error)
{
const QString msg = errorMessage(error);
showMessage(_("HANDLE GDB ERROR: ") + msg);
// Show a message box for asynchronously reported issues.
switch (error) {
case QProcess::FailedToStart:
// This should be handled by the code trying to start the process.
break;
case QProcess::Crashed:
// This will get a processExited() as well.
break;
case QProcess::ReadError:
case QProcess::WriteError:
case QProcess::Timedout:
default:
//gdbProc()->kill();
//notifyEngineIll();
showMessageBox(QMessageBox::Critical, tr("Gdb I/O Error"), msg);
break;
}
}
void GdbEngine::handleGdbFinished(int code, QProcess::ExitStatus type)
{
if (m_commandTimer.isActive())
m_commandTimer.stop();
showMessage(_("GDB PROCESS FINISHED, status %1, code %2").arg(type).arg(code));
switch (state()) {
case EngineShutdownRequested:
notifyEngineShutdownOk();
break;
case InferiorRunOk:
// This could either be a real gdb crash or a quickly exited inferior
// in the terminal adapter. In this case the stub proc will die soon,
// too, so there's no need to act here.
showMessage(_("The gdb process exited somewhat unexpectedly."));
notifyEngineSpontaneousShutdown();
break;
default: {
notifyEngineIll(); // Initiate shutdown sequence
const QString msg = type == QProcess::CrashExit ?
tr("The gdb process crashed.") :
tr("The gdb process exited unexpectedly (code %1)").arg(code);
showMessageBox(QMessageBox::Critical, tr("Unexpected Gdb Exit"), msg);
break;
}
}
}
void GdbEngine::handleAdapterStartFailed(const QString &msg, const QString &settingsIdHint)
{
QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
showMessage(_("ADAPTER START FAILED"));
if (!msg.isEmpty()) {
const QString title = tr("Adapter start failed");
if (settingsIdHint.isEmpty()) {
Core::ICore::instance()->showWarningWithOptions(title, msg);
} else {
Core::ICore::instance()->showWarningWithOptions(title, msg, QString(), _(Debugger::Constants::DEBUGGER_SETTINGS_CATEGORY), settingsIdHint);
}
}
notifyEngineSetupFailed();
}
void GdbEngine::handleAdapterStarted()
{
QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
showMessage(_("ADAPTER SUCCESSFULLY STARTED"));
notifyEngineSetupOk();
}
void GdbEngine::setupInferior()
{
QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << state());
showStatusMessage(tr("Setting up inferior..."));
m_gdbAdapter->setupInferior();
}
void GdbEngine::notifyInferiorSetupFailed()
{
// FIXME: that's not enough to stop gdb from getting confused
// by a timeout of the adapter.
//resetCommandQueue();
DebuggerEngine::notifyInferiorSetupFailed();
}
void GdbEngine::handleInferiorPrepared()
{
QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << state());
const QByteArray qtInstallPath = startParameters().qtInstallPath.toLocal8Bit();
if (!qtInstallPath.isEmpty()) {
QByteArray qtBuildPath;
#if defined(Q_OS_WIN)
qtBuildPath = "C:/qt-greenhouse/Trolltech/Code_less_create_more/Trolltech/Code_less_create_more/Troll/4.6/qt";
postCommand("set substitute-path " + qtBuildPath + ' ' + qtInstallPath);
qtBuildPath = "C:/iwmake/build_mingw_opensource";
postCommand("set substitute-path " + qtBuildPath + ' ' + qtInstallPath);
#elif defined(Q_OS_UNIX) && !defined (Q_OS_MAC)
qtBuildPath = "/var/tmp/qt-src";
postCommand("set substitute-path " + qtBuildPath + ' ' + qtInstallPath);
#endif
}
// Initial attempt to set breakpoints.
if (startParameters().startMode != AttachCore) {
showStatusMessage(tr("Setting breakpoints..."));
showMessage(tr("Setting breakpoints..."));
attemptBreakpointSynchronization();
}
if (m_cookieForToken.isEmpty()) {
finishInferiorSetup();
} else {
QTC_ASSERT(m_commandsDoneCallback == 0, /**/);
m_commandsDoneCallback = &GdbEngine::finishInferiorSetup;
}
}
void GdbEngine::finishInferiorSetup()
{
QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << state());
notifyInferiorSetupOk();
}
void GdbEngine::runEngine()
{
QTC_ASSERT(state() == EngineRunRequested, qDebug() << state());
m_gdbAdapter->runEngine();}
void GdbEngine::notifyInferiorSetupFailed(const QString &msg)
{
showStatusMessage(tr("Failed to start application: ") + msg);
if (state() == EngineSetupFailed) {
showMessage(_("INFERIOR START FAILED, BUT ADAPTER DIED ALREADY"));
return; // Adapter crashed meanwhile, so this notification is meaningless.
}
showMessage(_("INFERIOR START FAILED"));
showMessageBox(QMessageBox::Critical, tr("Failed to start application"), msg);
DebuggerEngine::notifyInferiorSetupFailed();
}
void GdbEngine::handleAdapterCrashed(const QString &msg)
{
showMessage(_("ADAPTER CRASHED"));
// The adapter is expected to have cleaned up after itself when we get here,
// so the effect is about the same as AdapterStartFailed => use it.
// Don't bother with state transitions - this can happen in any state and
// the end result is always the same, so it makes little sense to find a
// "path" which does not assert.
notifyEngineSetupFailed();
// No point in being friendly here ...
gdbProc()->kill();
if (!msg.isEmpty())
showMessageBox(QMessageBox::Critical, tr("Adapter crashed"), msg);
}
void GdbEngine::setUseDebuggingHelpers(const QVariant &on)
{
//qDebug() << "SWITCHING ON/OFF DUMPER DEBUGGING:" << on;
Q_UNUSED(on)
setTokenBarrier();
updateLocals();
}
bool GdbEngine::hasPython() const
{
return m_hasPython;
}
void GdbEngine::createFullBacktrace()
{
postCommand("thread apply all bt full",
NeedsStop|ConsoleCommand, CB(handleCreateFullBacktrace));
}
void GdbEngine::handleCreateFullBacktrace(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
debuggerCore()->openTextEditor(_("Backtrace $"),
_(response.data.findChild("consolestreamoutput").data()));
}
}
void GdbEngine::resetCommandQueue()
{
m_commandTimer.stop();
if (!m_cookieForToken.isEmpty()) {
QString msg;
QTextStream ts(&msg);
ts << "RESETING COMMAND QUEUE. LEFT OVER TOKENS: ";
foreach (const GdbCommand &cookie, m_cookieForToken)
ts << "CMD:" << cookie.command << cookie.callbackName;
m_cookieForToken.clear();
showMessage(msg); }
}
void GdbEngine::removeTooltip()
{
m_toolTipExpression.clear();
m_toolTipPos = QPoint();
DebuggerEngine::removeTooltip();
}
void GdbEngine::handleRemoteSetupDone(int gdbServerPort, int qmlPort)
{
m_gdbAdapter->handleRemoteSetupDone(gdbServerPort, qmlPort);
}
void GdbEngine::handleRemoteSetupFailed(const QString &message)
{
m_gdbAdapter->handleRemoteSetupFailed(message);
}
//
// Factory
//
DebuggerEngine *createGdbEngine(const DebuggerStartParameters &startParameters,
DebuggerEngine *masterEngine)
{
return new GdbEngine(startParameters, masterEngine);
}
void addGdbOptionPages(QList<Core::IOptionsPage *> *opts)
{
opts->push_back(new GdbOptionsPage());
}
} // namespace Internal
} // namespace Debugger
Q_DECLARE_METATYPE(Debugger::Internal::MemoryAgentCookie)
Q_DECLARE_METATYPE(Debugger::Internal::DisassemblerAgentCookie)
Q_DECLARE_METATYPE(Debugger::Internal::GdbMi)