-
hjk authoredThis avoids a race on Windows, where attaching is non-atomic. Task-number: QTCREATORBUG-8663 Change-Id: I119cae7129882fabaa97fa3f236379e5efe62df9 Reviewed-by:
David Schulz <david.schulz@digia.com>
Reviewed-by: Christian Stenger <christian.stenger@digia.com>hjk authoredThis avoids a race on Windows, where attaching is non-atomic. Task-number: QTCREATORBUG-8663 Change-Id: I119cae7129882fabaa97fa3f236379e5efe62df9 Reviewed-by:
David Schulz <david.schulz@digia.com>
Reviewed-by: Christian Stenger <christian.stenger@digia.com>
gdbengine.cpp 184.23 KiB
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "gdbengine.h"
#include "attachgdbadapter.h"
#include "coregdbadapter.h"
#include "gdbplainengine.h"
#include "termgdbadapter.h"
#include "remotegdbserveradapter.h"
#include "gdboptionspage.h"
#include <debugger/debuggerstartparameters.h>
#include <debugger/debuggerinternalconstants.h>
#include <debugger/debuggerruncontrolfactory.h>
#include <debugger/disassemblerlines.h>
#include <debugger/debuggeractions.h>
#include <debugger/debuggercore.h>
#include <debugger/debuggermainwindow.h>
#include <debugger/debuggerplugin.h>
#include <debugger/debuggerprotocol.h>
#include <debugger/debuggerstringutils.h>
#include <debugger/debuggertooltipmanager.h>
#include <debugger/disassembleragent.h>
#include <debugger/memoryagent.h>
#include <debugger/sourceutils.h>
#include <debugger/breakhandler.h>
#include <debugger/moduleshandler.h>
#include <debugger/registerhandler.h>
#include <debugger/sourcefileshandler.h>
#include <debugger/stackhandler.h>
#include <debugger/threadshandler.h>
#include <debugger/debuggersourcepathmappingwidget.h>
#include <debugger/logwindow.h>
#include <debugger/procinterrupt.h>
#include <debugger/shared/hostutils.h>
#include <coreplugin/icore.h>
#include <projectexplorer/devicesupport/deviceprocess.h>
#include <projectexplorer/itaskhandler.h>
#include <projectexplorer/taskhub.h>
#include <texteditor/itexteditor.h>#include <utils/hostosinfo.h>
#include <utils/qtcassert.h>
#include <utils/qtcprocess.h>
#include <utils/savedaction.h>
#include <QDirIterator>
#include <QTemporaryFile>
#include <QMessageBox>
#include <QPushButton>
using namespace ProjectExplorer;
using namespace Utils;
namespace Debugger {
namespace Internal {
enum { debugPending = 0 };
#define PENDING_DEBUG(s) do { if (debugPending) qDebug() << s; } while (0)
#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 InferiorSetupOk:
case EngineRunFailed:
case InferiorExitOk:
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)
{ QByteArray out = response.consoleStreamOutput;
// 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);
}
///////////////////////////////////////////////////////////////////////
//
// Debuginfo Taskhandler
//
///////////////////////////////////////////////////////////////////////
class DebugInfoTask
{
public:
QString command;
};
class DebugInfoTaskHandler : public ProjectExplorer::ITaskHandler
{
public:
explicit DebugInfoTaskHandler(GdbEngine *engine)
: m_engine(engine)
{}
bool canHandle(const Task &task) const
{
return m_debugInfoTasks.contains(task.taskId);
}
void handle(const Task &task)
{
m_engine->requestDebugInformation(m_debugInfoTasks.value(task.taskId));
}
void addTask(unsigned id, const DebugInfoTask &task)
{
m_debugInfoTasks[id] = task;
}
QAction *createAction(QObject *parent) const
{
QAction *action = new QAction(DebuggerPlugin::tr("Install &Debug Information"), parent);
action->setToolTip(DebuggerPlugin::tr("Tries to install missing debug information."));
return action;
}
private:
GdbEngine *m_engine;
QHash<unsigned, DebugInfoTask> m_debugInfoTasks;
};
///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////
GdbEngine::GdbEngine(const DebuggerStartParameters &startParameters)
: DebuggerEngine(startParameters)
{
setObjectName(_("GdbEngine"));
m_busy = false;
m_gdbVersion = 100;
m_isQnxGdb = false; m_registerNamesListed = false;
m_sourcesListUpdating = false;
m_oldestAcceptableToken = -1;
m_nonDiscardableCount = 0;
m_outputCodec = QTextCodec::codecForLocale();
m_pendingBreakpointRequests = 0;
m_commandsDoneCallback = 0;
m_stackNeeded = false;
m_preparedForQmlBreak = false;
m_terminalTrap = startParameters.useTerminal;
m_fullStartDone = false;
m_systemDumpersLoaded = false;
m_gdbProc = new GdbProcess(this);
m_debugInfoTaskHandler = new DebugInfoTaskHandler(this);
//ExtensionSystem::PluginManager::addObject(m_debugInfoTaskHandler);
m_commandTimer.setSingleShot(true);
connect(&m_commandTimer, SIGNAL(timeout()), SLOT(commandTimeout()));
connect(debuggerCore()->action(AutoDerefPointers), SIGNAL(valueChanged(QVariant)),
SLOT(reloadLocals()));
connect(debuggerCore()->action(CreateFullBacktrace), SIGNAL(triggered()),
SLOT(createFullBacktrace()));
connect(debuggerCore()->action(UseDebuggingHelpers), SIGNAL(valueChanged(QVariant)),
SLOT(reloadLocals()));
connect(debuggerCore()->action(UseDynamicType), SIGNAL(valueChanged(QVariant)),
SLOT(reloadLocals()));
connect(debuggerCore()->action(IntelFlavor), SIGNAL(valueChanged(QVariant)),
SLOT(reloadDisassembly()));
}
GdbEngine::~GdbEngine()
{
//ExtensionSystem::PluginManager::removeObject(m_debugInfoTaskHandler);
delete m_debugInfoTaskHandler;
m_debugInfoTaskHandler = 0;
// Prevent sending error messages afterwards.
disconnect();
}
DebuggerStartMode GdbEngine::startMode() const
{
return startParameters().startMode;
}
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, m_gdbProc->errorString());
case QProcess::Crashed:
if (targetState() == DebuggerFinished)
return tr("The gdb process crashed some time after starting "
"successfully.");
else
return tr("The gdb process was ended forcefully");
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
// Parse "~:gdb: unknown target exception 0xc0000139 at 0x77bef04e\n"
// and return an exception message
static inline QString msgWinException(const QByteArray &data, unsigned *exCodeIn = 0)
{
if (exCodeIn)
*exCodeIn = 0;
const int exCodePos = data.indexOf("0x");
const int blankPos = exCodePos != -1 ? data.indexOf(' ', exCodePos + 1) : -1;
const int addressPos = blankPos != -1 ? data.indexOf("0x", blankPos + 1) : -1;
if (addressPos < 0)
return GdbEngine::tr("An exception was triggered.");
const unsigned exCode = data.mid(exCodePos, blankPos - exCodePos).toUInt(0, 0);
if (exCodeIn)
*exCodeIn = exCode;
const quint64 address = data.mid(addressPos).trimmed().toULongLong(0, 0);
QString rc;
QTextStream str(&rc);
str << GdbEngine::tr("An exception was triggered:") << ' ';
formatWindowsException(exCode, address, 0, 0, 0, str);
str << '.';
return rc;
}
void GdbEngine::readDebugeeOutput(const QByteArray &data)
{
QString msg = m_outputCodec->toUnicode(data.constData(), data.length(),
&m_outputCodecState);
showMessage(msg, AppOutput);
}
static bool isNameChar(char c)
{
// could be 'stopped' or 'shlibs-added'
return (c >= 'a' && c <= 'z') || c == '-';
}
static bool contains(const QByteArray &message, const char *pattern, int size)
{
const int s = message.size();
if (s < size)
return false;
const int pos = message.indexOf(pattern);
if (pos == -1)
return false;
const bool beginFits = pos == 0 || message.at(pos - 1) == '\n';
const bool endFits = pos + size == s || message.at(pos + size) == '\n';
return beginFits && endFits;}
static bool isGdbConnectionError(const QByteArray &message)
{
// Handle messages gdb client produces when the target exits (gdbserver)
//
// we get this as response either to a specific command, e.g.
// 31^error,msg="Remote connection closed"
// or as informative output:
// &Remote connection closed
const char msg1[] = "Remote connection closed";
const char msg2[] = "Remote communication error. Target disconnected.: No error.";
const char msg3[] = "Quit";
return contains(message, msg1, sizeof(msg1) - 1)
|| contains(message, msg2, sizeof(msg2) - 1)
|| contains(message, msg3, sizeof(msg3) - 1);
}
void GdbEngine::handleResponse(const QByteArray &buff)
{
showMessage(QString::fromLocal8Bit(buff, buff.length()), LogOutput);
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;
}
// Next char decides kind of response.
const char c = *from++;
switch (c) {
case '*':
case '+':
case '=': {
QByteArray asyncClass;
for (; from != to; ++from) {
const char c = *from;
if (!isNameChar(c))
break;
asyncClass += *from;
}
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") {
GdbMi threads = result["thread-id"];
threadsHandler()->notifyRunning(threads.data());
if (state() == InferiorRunOk || state() == InferiorSetupRequested) {
// We get multiple *running after thread creation and in Windows terminals.
showMessage(QString::fromLatin1("NOTE: INFERIOR STILL RUNNING IN STATE %1.").
arg(QLatin1String(DebuggerEngine::stateName(state()))));
} else if (Utils::HostOsInfo::isWindowsHost() && (state() == InferiorStopRequested
|| state() == InferiorShutdownRequested)) {
// FIXME: Breakpoints on Windows are exceptions which are thrown in newly
// created threads so we have to filter out the running threads messages when
// we request a stop.
} else {
notifyInferiorRunOk();
}
} 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"
// id="/lib/i386-linux-gnu/libc.so.6"
// target-name="/lib/i386-linux-gnu/libc.so.6"
// host-name="/lib/i386-linux-gnu/libc.so.6"
// symbols-loaded="0",thread-group="i1"
QByteArray id = result["id"].data();
if (!id.isEmpty())
showStatusMessage(tr("Library %1 loaded").arg(_(id)), 1000);
progressPing();
Module module;
module.startAddress = 0;
module.endAddress = 0;
module.hostPath = _(result["host-name"].data());
module.modulePath = _(result["target-name"].data());
module.moduleName = QFileInfo(module.hostPath).baseName();
modulesHandler()->updateModule(module);
} 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["id"].data();
progressPing();
showStatusMessage(tr("Library %1 unloaded").arg(_(id)), 1000);
} 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["id"].data();
showStatusMessage(tr("Thread group %1 created").arg(_(id)), 1000);
int pid = id.toInt();
if (!pid) {
id = result["pid"].data();
pid = id.toInt();
}
if (pid)
notifyInferiorPid(pid);
handleThreadGroupCreated(result);
} else if (asyncClass == "thread-created") {
//"{id="1",group-id="28902"}" QByteArray id = result["id"].data();
showStatusMessage(tr("Thread %1 created").arg(_(id)), 1000);
ThreadData thread;
thread.id = ThreadId(id.toLong());
thread.groupId = result["group-id"].data();
threadsHandler()->updateThread(thread);
} else if (asyncClass == "thread-group-exited") {
// Archer has "{id="28902"}"
QByteArray id = result["id"].data();
showStatusMessage(tr("Thread group %1 exited").arg(_(id)), 1000);
handleThreadGroupExited(result);
} else if (asyncClass == "thread-exited") {
//"{id="1",group-id="28902"}"
QByteArray id = result["id"].data();
QByteArray groupid = result["group-id"].data();
showStatusMessage(tr("Thread %1 in group %2 exited")
.arg(_(id)).arg(_(groupid)), 1000);
threadsHandler()->removeThread(ThreadId(id.toLong()));
} else if (asyncClass == "thread-selected") {
QByteArray id = result["id"].data();
showStatusMessage(tr("Thread %1 selected").arg(_(id)), 1000);
//"{id="2"}"
} else if (asyncClass == "breakpoint-modified") {
// New in FSF gdb since 2011-04-27.
// "{bkpt={number="3",type="breakpoint",disp="keep",
// enabled="y",addr="<MULTIPLE>",times="1",
// original-location="\\",simple_gdbtest_app.cpp\\":135"},
// {number="3.1",enabled="y",addr="0x0805ff68",
// func="Vector<int>::Vector(int)",
// file="simple_gdbtest_app.cpp",
// fullname="/data/...line="135"},{number="3.2"...}}.."
// Note the leading comma in original-location. Filter it out.
// We don't need the field anyway.
QByteArray ba = result.toString();
ba = '[' + ba.mid(6, ba.size() - 7) + ']';
const int pos1 = ba.indexOf(",original-location");
const int pos2 = ba.indexOf("\":", pos1 + 2);
const int pos3 = ba.indexOf('"', pos2 + 2);
ba.remove(pos1, pos3 - pos1 + 1);
result = GdbMi();
result.fromString(ba);
BreakHandler *handler = breakHandler();
BreakpointModelId id;
BreakpointResponse br;
foreach (const GdbMi &bkpt, result.children()) {
const QByteArray nr = bkpt["number"].data();
BreakpointResponseId rid(nr);
if (!isHiddenBreakpoint(rid)) {
if (nr.contains('.')) {
// A sub-breakpoint.
BreakpointResponse sub;
updateResponse(sub, bkpt);
sub.id = rid;
sub.type = br.type;
handler->insertSubBreakpoint(id, sub);
} else {
// A primary breakpoint.
id = handler->findBreakpointByResponseId(rid);
//qDebug() << "NR: " << nr << "RID: " << rid
// << "ID: " << id;
//BreakpointModelId id =
// handler->findBreakpointByResponseId(rid);
br = handler->response(id);
updateResponse(br, bkpt);
handler->setResponse(id, br);
}
}
}
} else if (asyncClass == "breakpoint-created") { // "{bkpt={number="1",type="breakpoint",disp="del",enabled="y",
// addr="<PENDING>",pending="main",times="0",
// original-location="main"}}" -- or --
// {bkpt={number="2",type="hw watchpoint",disp="keep",enabled="y",
// what="*0xbfffed48",times="0",original-location="*0xbfffed48"}}
BreakHandler *handler = breakHandler();
foreach (const GdbMi &bkpt, result.children()) {
BreakpointResponse br;
br.type = BreakpointByFileAndLine;
updateResponse(br, bkpt);
handler->handleAlienBreakpoint(br, this);
}
} else if (asyncClass == "breakpoint-deleted") {
// "breakpoint-deleted" "{id="1"}"
// New in FSF gdb since 2011-04-27.
BreakHandler *handler = breakHandler();
QByteArray nr = result["id"].data();
BreakpointResponseId rid(nr);
BreakpointModelId id = handler->findBreakpointByResponseId(rid);
if (id.isValid()) {
// This also triggers when a temporary breakpoint is hit.
// We do not really want that, as this loses all information.
// FIXME: Use a special marker for this case?
if (!handler->isOneShot(id))
handler->removeAlienBreakpoint(id);
}
} else if (asyncClass == "cmd-param-changed") {
// New since 2012-08-09
// "{param="debug remote",value="1"}"
} else if (asyncClass == "memory-changed") {
// New since 2013
// "{thread-group="i1",addr="0x0918a7a8",len="0x10"}"
} 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();
} else if (data.startsWith("[New ") || data.startsWith("[Thread ")) {
if (data.endsWith('\n'))
data.chop(1);
progressPing();
showStatusMessage(_(data), 1000); } else if (data.startsWith("gdb: unknown target exception 0x")) {
// [Windows, most likely some DLL/Entry point not found]:
// "gdb: unknown target exception 0xc0000139 at 0x77bef04e"
// This may be fatal and cause the target to exit later
unsigned exCode;
m_lastWinException = msgWinException(data, &exCode);
showMessage(m_lastWinException, LogMisc);
const Task::TaskType type = isFatalWinException(exCode) ? Task::Error : Task::Warning;
TaskHub::addTask(type, m_lastWinException, Constants::TASK_CATEGORY_DEBUGGER_RUNTIME);
}
if (data.startsWith("QMLBP:")) {
int pos1 = 6;
int pos2 = data.indexOf(' ', pos1);
m_qmlBreakpointResponseId2 = BreakpointResponseId(data.mid(pos1, pos2 - pos1));
//qDebug() << "FOUND QMLBP: " << m_qmlBreakpointNumbers[2];
//qDebug() << "CURRENT: " << m_qmlBreakpointNumbers;
}
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: "
if (isGdbConnectionError(data)) {
notifyInferiorExited();
break;
}
if (debuggerCore()->boolSetting(IdentifyDebugInfoPackages)) {
// From SuSE's gdb: >&"Missing separate debuginfo for ...\n"
// ">&"Try: zypper install -C \"debuginfo(build-id)=c084ee5876ed1ac12730181c9f07c3e027d8e943\"\n"
if (data.startsWith("Missing separate debuginfo for ")) {
m_lastMissingDebugInfo = QString::fromLocal8Bit(data.mid(32));
} else if (data.startsWith("Try: zypper")) {
QString cmd = QString::fromLocal8Bit(data.mid(4));
Task task(Task::Warning,
tr("Missing debug information for %1\nTry: %2")
.arg(m_lastMissingDebugInfo).arg(cmd),
FileName(), 0, Core::Id(Debugger::Constants::TASK_CATEGORY_DEBUGGER_DEBUGINFO));
TaskHub::addTask(task);
DebugInfoTask dit;
dit.command = cmd;
m_debugInfoTaskHandler->addTask(task.taskId, dit);
}
}
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.logStreamOutput = m_pendingLogStreamOutput;
response.consoleStreamOutput = m_pendingConsoleStreamOutput;
m_pendingLogStreamOutput.clear();
m_pendingConsoleStreamOutput.clear();
handleResultRecord(&response);
break;
}
default: {
qDebug() << "UNKNOWN RESPONSE TYPE '" << c << "'. REST: " << from;
break;
}
}
}
void GdbEngine::readGdbStandardError()
{
QByteArray err = m_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();
QByteArray out = m_gdbProc->readAllStandardOutput();
m_inbuffer.append(out);
// 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 (m_inbuffer.at(end - 1) == '\r') {
--end;
if (end == start)
continue;
}
m_busy = true;
QByteArray ba = QByteArray::fromRawData(m_inbuffer.constData() + start, end - start);
handleResponse(ba);
m_busy = false;
}
m_inbuffer.clear();
}
void GdbEngine::interruptInferior()
{
QTC_ASSERT(state() == InferiorStopRequested,
qDebug() << "INTERRUPT INFERIOR: " << state(); return);
if (usesExecInterrupt()) {
postCommand("-exec-interrupt", Immediate);
} else {
showStatusMessage(tr("Stop requested..."), 5000);
showMessage(_("TRYING TO INTERRUPT INFERIOR"));
if (Utils::HostOsInfo::isWindowsHost() && !m_isQnxGdb) {
QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state(); notifyInferiorStopFailed());
QTC_ASSERT(!m_signalOperation, notifyInferiorStopFailed());
m_signalOperation = startParameters().device->signalOperation();
QTC_ASSERT(m_signalOperation, notifyInferiorStopFailed());
connect(m_signalOperation.data(), SIGNAL(finished(QString)),
SLOT(handleInterruptDeviceInferior(QString)));
m_signalOperation->setDebuggerCommand(startParameters().debuggerCommand);
m_signalOperation->interruptProcess(inferiorPid());
} else {
interruptInferior2();
}
}
}
void GdbEngine::handleInterruptDeviceInferior(const QString &error)
{
if (error.isEmpty()) {
showMessage(QLatin1String("Interrupted ") + QString::number(inferiorPid()));
notifyInferiorStopOk();
} else {
showMessage(error, LogError);
notifyInferiorStopFailed();
}
m_signalOperation->disconnect(this);
m_signalOperation.clear();
}
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, 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 & 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_uncompleted.size()
<< "LEAVES PENDING BREAKPOINT AT" << m_pendingBreakpointRequests);
}
if (!(cmd.flags & Discardable))
++m_nonDiscardableCount;
// 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 ? cmd.callbackName : "<unnamed callback>")));
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(m_gdbProc->state() == QProcess::Running, return);
const int token = ++currentToken();
GdbCommand cmd = cmd0;
cmd.postTime = QTime::currentTime();
m_cookieForToken[token] = cmd;
if (cmd.flags & ConsoleCommand)
cmd.command = "-interpreter-exec console \"" + cmd.command + '"';
cmd.command = QByteArray::number(token) + cmd.command;
showMessage(_(cmd.command), LogInput);
if (m_scheduledTestResponses.contains(token)) {
// Fake response for test cases.
QByteArray buffer = m_scheduledTestResponses.value(token);
buffer.replace("@TOKEN@", QByteArray::number(token));
m_scheduledTestResponses.remove(token);
showMessage(_("FAKING TEST RESPONSE (TOKEN: %2, RESPONSE: %3)")
.arg(token).arg(_(buffer)));
QMetaObject::invokeMethod(this, "handleResponse",
Q_ARG(QByteArray, buffer));
} else {
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) {
QStringList commands;
foreach (const GdbCommand &cookie, m_cookieForToken)
commands << QString(_("\"%1\"")).arg(
QString::fromLatin1(cookie.command));
showMessage(_("TIMED OUT WAITING FOR GDB REPLY. "
"COMMANDS STILL IN PROGRESS: ") + commands.join(_(", ")));
int timeOut = m_commandTimer.interval();
//m_commandTimer.stop();
const QString msg = tr("The gdb process has not responded "
"to a command within %n second(s). 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 aborting debugging.", 0, 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.
m_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 (%2). "
"TWO RESPONSES FOR ONE COMMAND?").arg(token).
arg(QString::fromLatin1(stateName(state()))));
if (response->resultClass == GdbResultError) {
QByteArray msg = response->data["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_CHECK(state() == InferiorRunOk);
notifyInferiorSpontaneousStop();
notifyEngineIll();
} else if (isGdbConnectionError(msg)) {
notifyInferiorExited();
} else {
// Windows: Some DLL or some function not found. Report
// the exception now in a box. if (msg.startsWith("During startup program exited with"))
notifyInferiorExited();
QString logMsg;
if (!m_lastWinException.isEmpty())
logMsg = m_lastWinException + QLatin1Char('\n');
logMsg += QString::fromLocal8Bit(msg);
showMessageBox(QMessageBox::Critical, tr("Executable Failed"), logMsg);
showStatusMessage(tr("Executable failed: %1").arg(logMsg));
}
}
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 and ^done
// instead of ^running and *stopped
// (response->resultClass == GdbResultDone && (cmd.flags & RunRequest));
if (!isExpectedResult) {
const DebuggerStartParameters &sp = startParameters();
Abi abi = sp.toolChainAbi;
if (abi.os() == Abi::WindowsOS
&& cmd.command.startsWith("attach")
&& (sp.startMode == AttachExternal || sp.useTerminal))
{
// Ignore spurious 'running' responses to 'attach'.
} else {
QByteArray rsp = GdbResponse::stringFromResultClass(response->resultClass);
rsp = "UNEXPECTED RESPONSE '" + rsp + "' TO COMMAND '" + cmd.command + "'";
qWarning() << rsp << " AT " __FILE__ ":" STRINGIFY(__LINE__);
showMessage(_(rsp));
}
}
if (!(cmd.flags & Discardable))
--m_nonDiscardableCount;
if (cmd.callback)
(this->*cmd.callback)(*response);
if (cmd.flags & RebuildBreakpointModel) {
--m_pendingBreakpointRequests;
PENDING_DEBUG(" BREAKPOINT" << cmd.command << "=>" << cmd.callbackName
<< "DECREMENTS PENDING TO" << m_uncompleted.size());
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_uncompleted.size()
<< "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();
}
bool GdbEngine::acceptsDebuggerCommands() const
{
return true;
return state() == InferiorStopOk
|| state() == InferiorUnrunnable;
}
void GdbEngine::executeDebuggerCommand(const QString &command, DebuggerLanguages languages)
{
if (!(languages & CppLanguage))
return;
QTC_CHECK(acceptsDebuggerCommands());
GdbCommand cmd;
cmd.command = command.toLatin1();
flushCommand(cmd);
}
// This is called from CoreAdapter and AttachAdapter.
void GdbEngine::updateAll()
{
//PENDING_DEBUG("UPDATING ALL\n");
QTC_CHECK(state() == InferiorUnrunnable || state() == InferiorStopOk);
reloadModulesInternal();
postCommand("-stack-list-frames", CB(handleStackListFrames),
QVariant::fromValue<StackCookie>(StackCookie(false, true)));
stackHandler()->setCurrentIndex(0);
postCommand("-thread-info", CB(handleThreadInfo), 0);
reloadRegisters();
updateLocals();
}
void GdbEngine::handleQuerySources(const GdbResponse &response)
{
m_sourcesListUpdating = false;
if (response.resultClass == GdbResultDone) {
QMap<QString, QString> oldShortToFull = m_shortToFullName; m_shortToFullName.clear();
m_fullToShortName.clear();
// "^done,files=[{file="../../../../bin/dumper/dumper.cpp",
// fullname="/data5/dev/ide/main/bin/dumper/dumper.cpp"},
GdbMi files = response.data["files"];
foreach (const GdbMi &item, files.children()) {
GdbMi fileName = item["file"];
if (fileName.data().endsWith("<built-in>"))
continue;
GdbMi fullName = item["fullname"];
QString file = QString::fromLocal8Bit(fileName.data());
QString full;
if (fullName.isValid()) {
full = cleanupFullName(QString::fromLocal8Bit(fullName.data()));
m_fullToShortName[full] = file;
}
m_shortToFullName[file] = full;
}
if (m_shortToFullName != oldShortToFull)
sourceFilesHandler()->setSourceFiles(m_shortToFullName);
}
}
void GdbEngine::handleExecuteJumpToLine(const GdbResponse &response)
{
if (response.resultClass == GdbResultRunning) {
// All is fine. Waiting for a *running
// and the temporary breakpoint to be hit.
notifyInferiorRunOk(); // Only needed for gdb < 7.0.
} else if (response.resultClass == GdbResultDone) {
// This happens on old gdb. Trigger the effect of a '*stopped'.
showStatusMessage(tr("Jumped. Stopped"));
notifyInferiorSpontaneousStop();
handleStop2(response);
}
}
void GdbEngine::handleExecuteRunToLine(const GdbResponse &response)
{
if (response.resultClass == GdbResultRunning) {
// All is fine. Waiting for a *running
// and the temporary breakpoint to be hit.
} else if (response.resultClass == GdbResultDone) {
// This happens on old gdb (Mac). gdb is not stopped yet,
// but merely accepted the continue.
// >&"continue\n"
// >~"Continuing.\n"
//>~"testArray () at ../simple/app.cpp:241\n"
//>~"241\t s[1] = \"b\";\n"
//>122^done
showStatusMessage(tr("Target line hit. Stopped"));
notifyInferiorRunOk();
}
}
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
}
void GdbEngine::handleStopResponse(const GdbMi &data)
{
// Ignore trap on Windows terminals, which results in
// spurious "* stopped" message.
if (!data.isValid() && m_terminalTrap && Abi::hostAbi().os() == Abi::WindowsOS) {
m_terminalTrap = false;
showMessage(_("IGNORING TERMINAL SIGTRAP"), LogMisc); return;
}
// 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;
}
GdbMi threads = data["stopped-thread"];
threadsHandler()->notifyStopped(threads.data());
const QByteArray reason = data["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["exit-code"].toString()));
} else if (reason == "exited-signalled" || reason == "signal-received") {
msg = tr("Application exited after receiving signal %1")
.arg(_(data["signal-name"].toString()));
} else {
msg = tr("Application exited normally");
}
showStatusMessage(msg);
notifyInferiorExited();
return;
}
bool gotoHandleStop1 = true;
if (!m_fullStartDone) {
m_fullStartDone = true;
postCommand("sharedlibrary .*");
postCommand("p 3", CB(handleStop1));
gotoHandleStop1 = false;
}
BreakpointResponseId rid(data["bkptno"].data());
const GdbMi frame = data["frame"];
int lineNumber = 0;
QString fullName;
if (frame.isValid()) {
const GdbMi lineNumberG = frame["line"];
if (lineNumberG.isValid()) {
lineNumber = lineNumberG.toInt();
fullName = cleanupFullName(QString::fromLocal8Bit(frame["fullname"].data()));
if (fullName.isEmpty())
fullName = QString::fromLocal8Bit(frame["file"].data());
} // found line number
} else {
showMessage(_("INVALID STOPPED REASON"), LogWarning);
}
if (rid.isValid() && frame.isValid()
&& !isQmlStepBreakpoint(rid)
&& !isQFatalBreakpoint(rid)) {
// Use opportunity to update the breakpoint marker position.
BreakHandler *handler = breakHandler();
//qDebug() << " PROBLEM: " << m_qmlBreakpointNumbers << rid
// << isQmlStepBreakpoint1(rid)
// << isQmlStepBreakpoint2(rid) BreakpointModelId id = handler->findBreakpointByResponseId(rid);
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);
}
//qDebug() << "BP " << rid << data.toString();
// Quickly set the location marker.
if (lineNumber && !debuggerCore()->boolSetting(OperateByInstruction)
&& QFileInfo(fullName).exists()
&& !isQmlStepBreakpoint(rid)
&& !isQFatalBreakpoint(rid))
gotoLocation(Location(fullName, lineNumber));
if (!m_commandsToRunOnTemporaryBreak.isEmpty()) {
QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state());
notifyInferiorStopOk();
flushQueuedCommands();
if (state() == InferiorStopOk) {
QTC_CHECK(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"
// or, on S40,
// "*running,thread-id="30""
// "&"Warning:\n""
// "&"Cannot insert breakpoint -33.\n"
// "&"Error accessing memory address 0x11673fc: Input/output error.\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
notifyInferiorSpontaneousStop();
} else if (state() == InferiorStopOk) {
// That's expected.
} else {
QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state());
notifyInferiorStopOk();
}
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
if (isQmlStepBreakpoint1(rid))
return;
if (gotoHandleStop1)
handleStop1(data);
}
static QByteArray stopSignal(Abi abi)
{
return (abi.os() == Abi::WindowsOS) ? QByteArray("SIGTRAP") : QByteArray("SIGINT");
}
void GdbEngine::handleStop1(const GdbResponse &response)
{
handleStop1(response.cookie.value<GdbMi>());
}
void GdbEngine::handleStop1(const GdbMi &data)
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
QTC_ASSERT(!isDying(), return);
const GdbMi frame = data["frame"];
const QByteArray reason = data["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["func"].data());
QString fileName = QString::fromLocal8Bit(frame["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["gdb-result-var"];
if (resultVar.isValid())
m_resultVarName = resultVar.data();
else
m_resultVarName.clear();
if (!m_systemDumpersLoaded) {
m_systemDumpersLoaded = true;
if (m_gdbVersion >= 70400 && debuggerCore()->boolSetting(LoadGdbDumpers))
postCommand("importPlainDumpers"); }
handleStop2(data);
}
void GdbEngine::handleStop2(const GdbResponse &response)
{
handleStop2(response.cookie.value<GdbMi>());
}
void GdbEngine::handleStop2(const GdbMi &data)
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
QTC_ASSERT(!isDying(), return);
// A user initiated stop looks like the following. Note that there is
// this extra "stopper thread" created and "properly" reported by gdb.
//
// dNOTE: INFERIOR RUN OK
// dState changed from InferiorRunRequested(10) to InferiorRunOk(11).
// >*running,thread-id="all"
// >=thread-exited,id="11",group-id="i1"
// sThread 11 in group i1 exited
// dState changed from InferiorRunOk(11) to InferiorStopRequested(13).
// dCALL: INTERRUPT INFERIOR
// sStop requested...
// dTRYING TO INTERRUPT INFERIOR
// >=thread-created,id="12",group-id="i1"
// sThread 12 created
// >~"[New Thread 8576.0x1154]\n"
// s[New Thread 8576.0x1154]
// >*running,thread-id="all"
// >~"[Switching to Thread 8576.0x1154]\n"
// >*stopped,reason="signal-received",signal-name="SIGTRAP",
// signal-meaning="Trace/breakpointtrap",frame={addr="0x7c90120f",func=
// "ntdll!DbgUiConnectToDbg",args=[],from="C:\\WINDOWS\\system32\\ntdll.dll"},
// thread-id="12",stopped-threads="all"
// dNOTE: INFERIOR STOP OK
// dState changed from InferiorStopRequested(13) to InferiorStopOk(14).
const QByteArray reason = data["reason"].data();
const QByteArray func = data["frame"]["from"].data();
const DebuggerStartParameters &sp = startParameters();
bool isStopperThread = false;
if (sp.useTerminal
&& reason == "signal-received"
&& data["signal-name"].data() == "SIGSTOP"
&& (func.endsWith("/ld-linux.so.2")
|| func.endsWith("/ld-linux-x86-64.so.2")))
{
// Ignore signals from the process stub.
showMessage(_("INTERNAL CONTINUE AFTER SIGSTOP FROM STUB"), LogMisc);
continueInferiorInternal();
return;
}
if (sp.toolChainAbi.os() == Abi::WindowsOS
&& sp.useTerminal
&& reason == "signal-received"
&& data["signal-name"].data() == "SIGTRAP")
{
// This is the stopper thread. That also means that the
// reported thread is not the one we'd like to expose
// to the user.
isStopperThread = true;
}
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"
const GdbMi wpt = data["wpt"];
const BreakpointResponseId rid(wpt["number"].data());
const BreakpointModelId id = breakHandler()->findBreakpointByResponseId(rid);
const quint64 bpAddress = wpt["exp"].data().mid(1).toULongLong(0, 0);
QString msg;
if (id && breakHandler()->type(id) == WatchpointAtExpression)
msg = msgWatchpointByExpressionTriggered(id, rid.majorPart(),
breakHandler()->expression(id));
if (id && breakHandler()->type(id) == WatchpointAtAddress)
msg = msgWatchpointByAddressTriggered(id, rid.majorPart(), bpAddress);
GdbMi value = data["value"];
GdbMi oldValue = value["old"];
GdbMi newValue = value["new"];
if (oldValue.isValid() && newValue.isValid()) {
msg += QLatin1Char(' ');
msg += tr("Value changed from %1 to %2.")
.arg(_(oldValue.data())).arg(_(newValue.data()));
}
showStatusMessage(msg);
} else if (reason == "breakpoint-hit") {
GdbMi gNumber = data["bkptno"]; // 'number' or 'bkptno'?
if (!gNumber.isValid())
gNumber = data["number"];
const BreakpointResponseId rid(gNumber.data());
const QByteArray threadId = data["thread-id"].data();
const BreakpointModelId id = breakHandler()->findBreakpointByResponseId(rid);
showStatusMessage(msgBreakpointTriggered(id, rid.majorPart(), _(threadId)));
m_currentThread = threadId;
} else {
QString reasontr = msgStopped(_(reason));
if (reason == "signal-received") {
QByteArray name = data["signal-name"].data();
QByteArray meaning = data["signal-meaning"].data();
// Ignore these as they are showing up regularly when
// stopping debugging.
if (name == stopSignal(sp.toolChainAbi)) {
showMessage(_(name + " CONSIDERED HARMLESS. CONTINUING."));
} else {
showMessage(_("HANDLING SIGNAL " + name));
if (debuggerCore()->boolSetting(UseMessageBoxForSignals)
&& !isStopperThread)
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.
QTimer::singleShot(0, this, SLOT(handleStop2()));
}
void GdbEngine::handleStop2()
{
// We are already continuing.
if (!m_stackNeeded)
return;
// This is only available in gdb 7.1+.
postCommand("-thread-info", Discardable, CB(handleThreadInfo));}
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.consoleStreamOutput)) != -1)
maybeHandleInferiorPidChanged(re.cap(1));
}
}
void GdbEngine::handleShowVersion(const GdbResponse &response)
{
showMessage(_("PARSING VERSION: " + response.toString()));
if (response.resultClass == GdbResultDone) {
bool isMacGdb = false;
int gdbBuildVersion = -1;
m_gdbVersion = 100;
m_isQnxGdb = false;
QString msg = QString::fromLocal8Bit(response.consoleStreamOutput);
extractGdbVersion(msg,
&m_gdbVersion, &gdbBuildVersion, &isMacGdb, &m_isQnxGdb);
// On Mac, FSF GDB does not work sufficiently well,
// and on Linux and Windows we require at least 7.4.1,
// on Android 7.3.1.
bool isSupported = m_gdbVersion >= 70300;
if (isSupported)
showMessage(_("SUPPORTED GDB VERSION ") + msg);
else
showMessage(_("UNSUPPORTED GDB VERSION ") + msg);
showMessage(_("USING GDB VERSION: %1, BUILD: %2%3").arg(m_gdbVersion)
.arg(gdbBuildVersion).arg(_(isMacGdb ? " (APPLE)" : "")));
if (usesExecInterrupt())
postCommand("set target-async on", ConsoleCommand);
else
postCommand("set target-async off", ConsoleCommand);
if (startParameters().multiProcess)
postCommand("set detach-on-fork off", ConsoleCommand);
//postCommand("set build-id-verbose 2", ConsoleCommand);
}
}
void GdbEngine::handleListFeatures(const GdbResponse &response)
{
showMessage(_("FEATURES: " + response.toString()));
}
void GdbEngine::handlePythonSetup(const GdbResponse &response)
{
QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
if (response.resultClass == GdbResultDone) {
const QString commands = debuggerCore()->stringSetting(GdbCustomDumperCommands);
if (!commands.isEmpty()) {
postCommand(commands.toLocal8Bit());
postCommand("bbsetup");
}
GdbMi data;
data.fromStringMultiple(response.consoleStreamOutput);
const GdbMi dumpers = data["dumpers"];
foreach (const GdbMi &dumper, dumpers.children()) {
QByteArray type = dumper["type"].data();
QStringList formats(tr("Raw structure"));
foreach (const QByteArray &format,
dumper["formats"].data().split(',')) { if (format == "Normal")
formats.append(tr("Normal"));
else if (format == "Displayed")
formats.append(tr("Displayed"));
else if (!format.isEmpty())
formats.append(_(format));
}
watchHandler()->addTypeFormats(type, formats);
}
loadInitScript();
QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
showMessage(_("ENGINE SUCCESSFULLY STARTED"));
notifyEngineSetupOk();
} else {
QByteArray msg = response.data["msg"].data();
if (msg.contains("Python scripting is not supported in this copy of GDB.")) {
QString out1 = _("The selected build of GDB does not support Python scripting.");
QString out2 = _("It cannot be used in Qt Creator.");
showStatusMessage(out1 + QLatin1Char(' ') + out2);
showMessageBox(QMessageBox::Critical, tr("Execution Error"), out1 + _("<br>") + out2);
}
notifyEngineSetupFailed();
}
}
void GdbEngine::showExecutionError(const QString &message)
{
showMessageBox(QMessageBox::Critical, tr("Execution Error"),
tr("Cannot continue debugged process:") + QLatin1Char('\n') + message);
}
void GdbEngine::handleExecuteContinue(const GdbResponse &response)
{
QTC_ASSERT(state() == InferiorRunRequested, qDebug() << state());
if (response.resultClass == GdbResultRunning) {
// All is fine. Waiting for a *running.
notifyInferiorRunOk(); // Only needed for gdb < 7.0.
return;
}
QByteArray msg = response.data["msg"].data();
if (msg.startsWith("Cannot find bounds of current function")) {
notifyInferiorRunFailed();
if (isDying())
return;
if (!m_commandsToRunOnTemporaryBreak.isEmpty())
flushQueuedCommands();
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
showStatusMessage(tr("Stopped."), 5000);
reloadStack(true);
} else if (msg.startsWith("Cannot access memory at address")) {
// Happens on single step on ARM prolog and epilogs.
} else if (msg.startsWith("\"finish\" not meaningful in the outermost frame")) {
notifyInferiorRunFailed();
if (isDying())
return;
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
// FIXME: Fix translation in master.
showStatusMessage(QString::fromLocal8Bit(msg), 5000);
gotoLocation(stackHandler()->currentFrame());
} else if (msg.startsWith("Cannot execute this command while the selected thread is running.")) {
showExecutionError(QString::fromLocal8Bit(msg));
notifyInferiorRunFailed() ;
} else {
showExecutionError(QString::fromLocal8Bit(msg));
notifyInferiorIll();
}
}
QString GdbEngine::fullName(const QString &fileName){
if (fileName.isEmpty())
return QString();
QTC_ASSERT(!m_sourcesListUpdating, /* */);
return m_shortToFullName.value(fileName, QString());
}
QString GdbEngine::cleanupFullName(const QString &fileName)
{
QString cleanFilePath = fileName;
// Gdb running on windows often delivers "fullnames" which
// (a) have no drive letter and (b) are not normalized.
if (Abi::hostAbi().os() == Abi::WindowsOS) {
QTC_ASSERT(!fileName.isEmpty(), return QString());
QFileInfo fi(fileName);
if (fi.isReadable())
cleanFilePath = QDir::cleanPath(fi.absoluteFilePath());
}
if (startMode() == StartRemoteGdb) {
cleanFilePath.replace(0, startParameters().remoteMountPoint.length(),
startParameters().localMountDir);
}
if (!debuggerCore()->boolSetting(AutoEnrichParameters))
return cleanFilePath;
const QString sysroot = startParameters().sysRoot;
if (QFileInfo(cleanFilePath).isReadable())
return cleanFilePath;
if (!sysroot.isEmpty() && fileName.startsWith(QLatin1Char('/'))) {
cleanFilePath = sysroot + fileName;
if (QFileInfo(cleanFilePath).isReadable())
return cleanFilePath;
}
if (m_baseNameToFullName.isEmpty()) {
QString debugSource = sysroot + QLatin1String("/usr/src/debug");
if (QFileInfo(debugSource).isDir()) {
QDirIterator it(debugSource, QDirIterator::Subdirectories);
while (it.hasNext()) {
it.next();
QString name = it.fileName();
if (!name.startsWith(QLatin1Char('.'))) {
QString path = it.filePath();
m_baseNameToFullName.insert(name, path);
}
}
}
}
cleanFilePath.clear();
const QString base = QFileInfo(fileName).fileName();
QMap<QString, QString>::const_iterator jt = m_baseNameToFullName.find(base);
while (jt != m_baseNameToFullName.end() && jt.key() == base) {
// FIXME: Use some heuristics to find the "best" match.
return jt.value();
//++jt;
}
return cleanFilePath;
}
void GdbEngine::shutdownInferior()
{
QTC_ASSERT(state() == InferiorShutdownRequested, qDebug() << state());
m_commandsToRunOnTemporaryBreak.clear();
switch (startParameters().closeMode) {
case KillAtClose:
postCommand("kill", NeedsStop | LosesChild, CB(handleInferiorShutdown)); return;
case DetachAtClose:
postCommand("detach", NeedsStop | LosesChild, CB(handleInferiorShutdown));
return;
}
QTC_ASSERT(false, notifyInferiorShutdownFailed());
}
void GdbEngine::handleInferiorShutdown(const GdbResponse &response)
{
QTC_ASSERT(state() == InferiorShutdownRequested, qDebug() << state());
if (response.resultClass == GdbResultDone) {
notifyInferiorShutdownOk();
return;
}
QByteArray ba = response.data["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"),
msgInferiorStopFailed(QString::fromLocal8Bit(ba)));
notifyInferiorShutdownFailed();
}
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(m_gdbProc->state()));
m_commandsDoneCallback = 0;
switch (m_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"));
m_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 = msgGdbStopFailed(
QString::fromLocal8Bit(response.data["msg"].data()));
qDebug() << (_("GDB WON'T EXIT (%1); KILLING IT").arg(msg));
showMessage(_("GDB WON'T EXIT (%1); KILLING IT").arg(msg));
m_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();
}
void GdbEngine::handleThreadGroupCreated(const GdbMi &result)
{
Q_UNUSED(result);
// QByteArray id = result["id"].data();
// QByteArray pid = result["pid"].data();
// Q_UNUSED(id);
// Q_UNUSED(pid);
}
void GdbEngine::handleThreadGroupExited(const GdbMi &result)
{
Q_UNUSED(result);
// QByteArray id = result["id"].data();
// Q_UNUSED(id);
}
int GdbEngine::currentFrame() const
{
return stackHandler()->currentIndex();
}
static QString msgNoGdbBinaryForToolChain(const Abi &tc)
{
return GdbEngine::tr("There is no GDB binary available for binaries in format \"%1\"")
.arg(tc.toString());
}
bool GdbEngine::hasCapability(unsigned cap) const
{
if (cap & (ReverseSteppingCapability
| AutoDerefPointersCapability
| DisassemblerCapability
| RegisterCapability
| ShowMemoryCapability
| JumpToLineCapability
| ReloadModuleCapability
| ReloadModuleSymbolsCapability
| BreakOnThrowAndCatchCapability
| BreakConditionCapability
| TracePointCapability
| ReturnFromFunctionCapability
| CreateFullBacktraceCapability
| WatchpointByAddressCapability
| WatchpointByExpressionCapability
| AddWatcherCapability
| WatchWidgetsCapability
| ShowModuleSymbolsCapability
| ShowModuleSectionsCapability
| CatchCapability
| OperateByInstructionCapability
| RunToLineCapability
| WatchComplexExpressionsCapability
| MemoryAddressCapability | AdditionalQmlStackCapability))
return true;
if (startParameters().startMode == AttachCore)
return false;
// FIXME: Remove in case we have gdb 7.x on Mac.
if (startParameters().toolChainAbi.os() == Abi::MacOS)
return false;
return cap == 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 (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 preceded it, so just ignore this result.
QTC_CHECK(state() == InferiorStopOk);
return;
}
QTC_ASSERT(state() == InferiorRunRequested, qDebug() << state());
if (response.resultClass == GdbResultRunning) {
// All is fine. Waiting for a *running.
notifyInferiorRunOk(); // Only needed for gdb < 7.0.
return;
}
QByteArray msg = response.data["msg"].data();
if (msg.startsWith("Cannot find bounds of current function")
|| msg.contains("Error accessing memory address")
|| msg.startsWith("Cannot access memory at address")) {
// On S40: "40^error,msg="Warning:\nCannot insert breakpoint -39.\n"
//" Error accessing memory address 0x11673fc: Input/output error.\n"
notifyInferiorRunFailed(); if (isDying())
return;
if (!m_commandsToRunOnTemporaryBreak.isEmpty())
flushQueuedCommands();
executeStepI(); // Fall back to instruction-wise stepping.
} else if (msg.startsWith("Cannot execute this command while the selected thread is running.")) {
showExecutionError(QString::fromLocal8Bit(msg));
notifyInferiorRunFailed();
} else if (msg.startsWith("warning: SuspendThread failed")) {
// On Win: would lead to "PC register is not available" or "\312"
continueInferiorInternal();
} 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", Discardable);
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 (isReverseDebugging()) {
postCommand("reverse-next", RunRequest, CB(handleExecuteNext));
} else {
scheduleTestResponse(TestNoBoundsOfCurrentFunction,
"@TOKEN@^error,msg=\"Warning:\\nCannot insert breakpoint -39.\\n"
" Error accessing memory address 0x11673fc: Input/output error.\\n\"");
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 preceded it, so just ignore this result.
QTC_CHECK(state() == InferiorStopOk);
return;
}
QTC_ASSERT(state() == InferiorRunRequested, qDebug() << state());
if (response.resultClass == GdbResultRunning) {
// All is fine. Waiting for a *running.
notifyInferiorRunOk(); // Only needed for gdb < 7.0.
return;
}
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state()); QByteArray msg = response.data["msg"].data();
if (msg.startsWith("Cannot find bounds of current function")
|| msg.contains("Error accessing memory address ")) {
if (!m_commandsToRunOnTemporaryBreak.isEmpty())
flushQueuedCommands();
notifyInferiorRunFailed();
if (!isDying())
executeNextI(); // Fall back to instruction-wise stepping.
} else if (msg.startsWith("Cannot execute this command while the selected thread is running.")) {
showExecutionError(QString::fromLocal8Bit(msg));
notifyInferiorRunFailed();
} else {
showMessageBox(QMessageBox::Critical, tr("Execution Error"),
tr("Cannot continue debugged process:") + QLatin1Char('\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));
}
static QByteArray addressSpec(quint64 address)
{
return "*0x" + QByteArray::number(address, 16);
}
void GdbEngine::executeRunToLine(const ContextData &data)
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
setTokenBarrier();
resetLocation();
notifyInferiorRunRequested();
showStatusMessage(tr("Run to line %1 requested...").arg(data.lineNumber), 5000);
#if 1
QByteArray loc;
if (data.address)
loc = addressSpec(data.address);
else
loc = '"' + breakLocation(data.fileName).toLocal8Bit() + '"' + ':'
+ QByteArray::number(data.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();
resetLocation();
postCommand("-break-insert -t " + functionName.toLatin1());
showStatusMessage(tr("Run to function %1 requested...").arg(functionName), 5000);
continueInferiorInternal();
}
void GdbEngine::executeJumpToLine(const ContextData &data)
{
QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
QByteArray loc;
if (data.address)
loc = addressSpec(data.address);
else
loc = '"' + breakLocation(data.fileName).toLocal8Bit() + '"' + ':'
+ QByteArray::number(data.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"
}
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();
}
/*!
Discards the results of all pending watch-updating commands.
This function is called at the beginning of all step, next, finish, and so on,
debugger functions.
If non-watch-updating commands with call-backs are still in the pipe,
it will complain.
*/
void GdbEngine::setTokenBarrier()
{
//QTC_ASSERT(m_nonDiscardableCount == 0, /**/);
bool good = true;
QHashIterator<int, GdbCommand> it(m_cookieForToken);
while (it.hasNext()) {
it.next();
if (!(it.value().flags & Discardable)) {
qDebug() << "TOKEN: " << it.key()
<< "CMD:" << it.value().command
<< " FLAGS:" << it.value().flags
<< " CALLBACK:" << it.value().callbackName;
good = false;
}
}
QTC_ASSERT(good, 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::updateResponse(BreakpointResponse &response, const GdbMi &bkpt)
{
QTC_ASSERT(bkpt.isValid(), return);
QByteArray originalLocation;
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.id = BreakpointResponseId(child.data());
} else if (child.hasName("func")) {
response.functionName = _(child.data());
} else if (child.hasName("addr")) {
// <MULTIPLE> happens in constructors, inline functions, and
// at other places like 'foreach' lines. In this case there are
// fields named "addr" in the response and/or the address
// is called <MULTIPLE>.
//qDebug() << "ADDR: " << child.data() << (child.data() == "<MULTIPLE>");
if (child.data() == "<MULTIPLE>")
response.multiple = true;
if (child.data().startsWith("0x"))
response.address = child.toAddress();
} 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.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).
if (file.isEmpty())
file = child.data();
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.toInt();
} else if (child.hasName("type")) {
// "breakpoint", "hw breakpoint", "tracepoint", "hw watchpoint"
// {bkpt={number="2",type="hw watchpoint",disp="keep",enabled="y",
// what="*0xbfffed48",times="0",original-location="*0xbfffed48"}}
if (child.data().contains("tracepoint")) {
response.tracepoint = true;
} else if (child.data() == "hw watchpoint" || child.data() == "watchpoint") {
QByteArray what = bkpt["what"].data(); if (what.startsWith("*0x")) {
response.type = WatchpointAtAddress;
response.address = what.mid(1).toULongLong(0, 0);
} else {
response.type = WatchpointAtExpression;
response.expression = QString::fromLocal8Bit(what);
}
} else if (child.data() == "breakpoint") {
QByteArray catchType = bkpt["catch-type"].data();
if (catchType == "throw")
response.type = BreakpointAtThrow;
else if (catchType == "catch")
response.type = BreakpointAtCatch;
else if (catchType == "fork")
response.type = BreakpointAtFork;
else if (catchType == "exec")
response.type = BreakpointAtExec;
else if (catchType == "syscall")
response.type = BreakpointAtSysCall;
}
} else if (child.hasName("original-location")) {
originalLocation = child.data();
}
// 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;
if (response.fileName.isEmpty())
response.updateLocation(originalLocation);
}
QString GdbEngine::breakLocation(const QString &file) const
{
QString where = m_fullToShortName.value(file);
if (where.isEmpty())
return QFileInfo(file).fileName();
return where;
}
QByteArray GdbEngine::breakpointLocation(BreakpointModelId id)
{
BreakHandler *handler = breakHandler();
const BreakpointParameters &data = handler->breakpointData(id);
QTC_ASSERT(data.type != UnknownBreakpointType, 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) {
const Abi abi = startParameters().toolChainAbi;
return (abi.os() == Abi::WindowsOS) ? "qMain" : "main";
}
if (data.type == BreakpointByFunction) return '"' + data.functionName.toUtf8() + '"';
if (data.type == BreakpointByAddress)
return addressSpec(data.address);
BreakpointPathUsage usage = data.pathUsage;
if (usage == BreakpointPathUsageEngineDefault)
usage = BreakpointUseShortPath;
const QString fileName = usage == BreakpointUseFullPath
? 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) + '"';
}
QByteArray GdbEngine::breakpointLocation2(BreakpointModelId id)
{
BreakHandler *handler = breakHandler();
const BreakpointParameters &data = handler->breakpointData(id);
BreakpointPathUsage usage = data.pathUsage;
if (usage == BreakpointPathUsageEngineDefault)
usage = BreakpointUseShortPath;
const QString fileName = usage == BreakpointUseFullPath
? data.fileName : breakLocation(data.fileName);
return GdbMi::escapeCString(fileName.toLocal8Bit()) + ':'
+ QByteArray::number(data.lineNumber);
}
void GdbEngine::handleWatchInsert(const GdbResponse &response)
{
BreakpointModelId id = response.cookie.value<BreakpointModelId>();
if (response.resultClass == GdbResultDone) {
BreakHandler *handler = breakHandler();
BreakpointResponse br = handler->response(id);
// "Hardware watchpoint 2: *0xbfffed40\n"
QByteArray ba = response.consoleStreamOutput;
GdbMi wpt = response.data["wpt"];
if (wpt.isValid()) {
// Mac yields:
//>32^done,wpt={number="4",exp="*4355182176"}
br.id = BreakpointResponseId(wpt["number"].data());
QByteArray exp = wpt["exp"].data();
if (exp.startsWith('*'))
br.address = exp.mid(1).toULongLong(0, 0);
handler->setResponse(id, br);
QTC_CHECK(!handler->needsChange(id));
handler->notifyBreakpointInsertOk(id);
} else if (ba.startsWith("Hardware watchpoint ")
|| ba.startsWith("Watchpoint ")) {
// Non-Mac: "Hardware watchpoint 2: *0xbfffed40\n"
const int end = ba.indexOf(':');
const int begin = ba.lastIndexOf(' ', end) + 1;
const QByteArray address = ba.mid(end + 2).trimmed();
br.id = BreakpointResponseId(ba.mid(begin, end - begin));
if (address.startsWith('*'))
br.address = address.mid(1).toULongLong(0, 0);
handler->setResponse(id, br);
QTC_CHECK(!handler->needsChange(id));
handler->notifyBreakpointInsertOk(id);
} else {
showMessage(_("CANNOT PARSE WATCHPOINT FROM " + ba));
}
}
}
void GdbEngine::handleCatchInsert(const GdbResponse &response){
BreakHandler *handler = breakHandler();
BreakpointModelId id = response.cookie.value<BreakpointModelId>();
if (response.resultClass == GdbResultDone)
handler->notifyBreakpointInsertOk(id);
}
void GdbEngine::handleBkpt(const GdbMi &bkpt, const BreakpointModelId &id)
{
BreakHandler *handler = breakHandler();
BreakpointResponse br = handler->response(id);
const QByteArray nr = bkpt["number"].data();
const BreakpointResponseId rid(nr);
QTC_ASSERT(rid.isValid(), return);
if (nr.contains('.')) {
// A sub-breakpoint.
BreakpointResponse sub;
updateResponse(sub, bkpt);
sub.id = rid;
sub.type = br.type;
handler->insertSubBreakpoint(id, sub);
return;
}
// The MI output format might change, see
// http://permalink.gmane.org/gmane.comp.gdb.patches/83936
const GdbMi locations = bkpt["locations"];
if (locations.isValid()) {
foreach (const GdbMi &loc, locations.children()) {
// A sub-breakpoint.
const QByteArray subnr = loc["number"].data();
const BreakpointResponseId subrid(subnr);
BreakpointResponse sub;
updateResponse(sub, loc);
sub.id = subrid;
sub.type = br.type;
handler->insertSubBreakpoint(id, sub);
}
}
// A (the?) primary breakpoint.
updateResponse(br, bkpt);
br.id = rid;
handler->setResponse(id, br);
}
void GdbEngine::handleBreakInsert1(const GdbResponse &response)
{
BreakHandler *handler = breakHandler();
const BreakpointModelId id = response.cookie.value<BreakpointModelId>();
if (handler->state(id) == BreakpointRemoveRequested) {
if (response.resultClass == GdbResultDone) {
// This delete was deferred. Act now.
const GdbMi mainbkpt = response.data["bkpt"];
handler->notifyBreakpointRemoveProceeding(id);
QByteArray nr = mainbkpt["number"].data();
postCommand("-break-delete " + nr,
NeedsStop | RebuildBreakpointModel);
handler->notifyBreakpointRemoveOk(id);
return;
}
}
if (response.resultClass == GdbResultDone) {
// The result is a list with the first entry marked "bkpt"
// and "unmarked" rest. The "bkpt" one seems to always be
// the "main" entry. Use the "main" entry to retrieve the
// already known data from the BreakpointManager, and then
// iterate over all items to update main- and sub-data.
const GdbMi mainbkpt = response.data["bkpt"];
const QByteArray mainnr = mainbkpt["number"].data(); const BreakpointResponseId mainrid(mainnr);
if (!isHiddenBreakpoint(mainrid)) {
foreach (const GdbMi &bkpt, response.data.children())
handleBkpt(bkpt, id);
if (handler->needsChange(id)) {
handler->notifyBreakpointChangeAfterInsertNeeded(id);
changeBreakpoint(id);
} else {
handler->notifyBreakpointInsertOk(id);
}
}
} else if (response.data["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);
} 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 " + breakpointLocation2(id);
QVariant vid = QVariant::fromValue(id);
postCommand(cmd, NeedsStop | RebuildBreakpointModel,
CB(handleBreakInsert2), vid);
}
}
void GdbEngine::handleBreakInsert2(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
BreakpointModelId id = response.cookie.value<BreakpointModelId>();
breakHandler()->notifyBreakpointInsertOk(id);
} else {
// Note: gdb < 60800 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.
}
}
void GdbEngine::handleBreakDisable(const GdbResponse &response)
{
QTC_CHECK(response.resultClass == GdbResultDone);
const BreakpointModelId id = response.cookie.value<BreakpointModelId>();
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_CHECK(response.resultClass == GdbResultDone);
const BreakpointModelId id = response.cookie.value<BreakpointModelId>();
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_CHECK(response.resultClass == GdbResultDone);
const BreakpointModelId id = response.cookie.value<BreakpointModelId>();
BreakHandler *handler = breakHandler();
BreakpointResponse br = handler->response(id);
br.threadSpec = handler->threadSpec(id);
handler->setResponse(id, br);
handler->notifyBreakpointNeedsReinsertion(id);
insertBreakpoint(id);
}
void GdbEngine::handleBreakLineNumber(const GdbResponse &response)
{
QTC_CHECK(response.resultClass == GdbResultDone);
const BreakpointModelId id = response.cookie.value<BreakpointModelId>();
BreakHandler *handler = breakHandler();
BreakpointResponse br = handler->response(id);
br.lineNumber = handler->lineNumber(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_CHECK(response.resultClass == GdbResultDone);
//QString msg = _(response.consoleStreamOutput);
BreakpointModelId id = response.cookie.value<BreakpointModelId>();
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...
const BreakpointParameters ¶meters = handler->breakpointData(id);
br.ignoreCount = parameters.ignoreCount;
br.command = parameters.command;
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_CHECK(response.resultClass == GdbResultDone)
const BreakpointModelId id = response.cookie.value<BreakpointModelId>();
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 (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.
}
bool GdbEngine::stateAcceptsBreakpointChanges() const
{
switch (state()) {
case InferiorSetupRequested:
case InferiorRunRequested:
case InferiorRunOk:
case InferiorStopRequested:
case InferiorStopOk:
return true;
default:
return false;
}
}
bool GdbEngine::acceptsBreakpoint(BreakpointModelId id) const
{
return breakHandler()->breakpointData(id).isCppBreakpoint()
&& startParameters().startMode != AttachCore;
}
void GdbEngine::insertBreakpoint(BreakpointModelId id)
{
// Set up fallback in case of pending breakpoints which aren't handled
// by the MI interface.
BreakHandler *handler = breakHandler();
QTC_CHECK(handler->state(id) == BreakpointInsertRequested);
handler->notifyBreakpointInsertProceeding(id);
BreakpointType type = handler->type(id);
QVariant vid = QVariant::fromValue(id);
if (type == WatchpointAtAddress) {
postCommand("watch " + addressSpec(handler->address(id)),
NeedsStop | RebuildBreakpointModel | ConsoleCommand,
CB(handleWatchInsert), vid);
return;
}
if (type == WatchpointAtExpression) {
postCommand("watch " + handler->expression(id).toLocal8Bit(),
NeedsStop | RebuildBreakpointModel | ConsoleCommand,
CB(handleWatchInsert), vid);
return;
}
if (type == BreakpointAtFork) {
postCommand("catch fork",
NeedsStop | RebuildBreakpointModel | ConsoleCommand,
CB(handleCatchInsert), vid);
postCommand("catch vfork",
NeedsStop | RebuildBreakpointModel | ConsoleCommand,
CB(handleCatchInsert), vid);
return;
}
//if (type == BreakpointAtVFork) {
// postCommand("catch vfork", NeedsStop | RebuildBreakpointModel,
// CB(handleCatchInsert), vid);
// return;
//}
if (type == BreakpointAtExec) {
postCommand("catch exec",
NeedsStop | RebuildBreakpointModel | ConsoleCommand,
CB(handleCatchInsert), vid);
return;
}
if (type == BreakpointAtSysCall) {
postCommand("catch syscall",
NeedsStop | RebuildBreakpointModel | ConsoleCommand,
CB(handleCatchInsert), vid);
return;
}
QByteArray cmd; if (handler->isTracepoint(id)) {
cmd = "-break-insert -a -f ";
} else {
int spec = handler->threadSpec(id);
cmd = "-break-insert ";
if (spec >= 0)
cmd += "-p " + QByteArray::number(spec);
cmd += " -f ";
}
if (handler->isOneShot(id))
cmd += "-t ";
if (!handler->isEnabled(id))
cmd += "-d ";
if (int ignoreCount = handler->ignoreCount(id))
cmd += "-i " + QByteArray::number(ignoreCount) + ' ';
QByteArray condition = handler->condition(id);
if (!condition.isEmpty())
cmd += " -c \"" + condition + "\" ";
cmd += breakpointLocation(id);
postCommand(cmd, NeedsStop | RebuildBreakpointModel,
CB(handleBreakInsert1), vid);
}
void GdbEngine::changeBreakpoint(BreakpointModelId id)
{
BreakHandler *handler = breakHandler();
const BreakpointParameters &data = handler->breakpointData(id);
QTC_ASSERT(data.type != UnknownBreakpointType, return);
const BreakpointResponse &response = handler->response(id);
QTC_ASSERT(response.id.isValid(), return);
const QByteArray bpnr = response.id.toByteArray();
const BreakpointState state = handler->state(id);
if (state == BreakpointChangeRequested)
handler->notifyBreakpointChangeProceeding(id);
const BreakpointState state2 = handler->state(id);
QTC_ASSERT(state2 == BreakpointChangeProceeding, qDebug() << state2);
QVariant vid = QVariant::fromValue(id);
if (!response.pending && 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), vid);
return;
}
if (!response.pending && data.lineNumber != response.lineNumber) {
// The only way to change this seems to be to re-set the bp completely.
postCommand("-break-delete " + bpnr,
NeedsStop | RebuildBreakpointModel,
CB(handleBreakLineNumber), vid);
return;
}
if (data.command != response.command) {
QByteArray breakCommand = "-break-commands " + bpnr;
foreach (const QString &command, data.command.split(QLatin1String("\n"))) {
if (!command.isEmpty()) {
breakCommand.append(" \"");
breakCommand.append(command.toLatin1());
breakCommand.append('"');
}
}
postCommand(breakCommand, NeedsStop | RebuildBreakpointModel,
CB(handleBreakIgnore), vid);
return;
} if (!data.conditionsMatch(response.condition)) {
postCommand("condition " + bpnr + ' ' + data.condition,
NeedsStop | RebuildBreakpointModel,
CB(handleBreakCondition), vid);
return;
}
if (data.ignoreCount != response.ignoreCount) {
postCommand("ignore " + bpnr + ' ' + QByteArray::number(data.ignoreCount),
NeedsStop | RebuildBreakpointModel,
CB(handleBreakIgnore), vid);
return;
}
if (!data.enabled && response.enabled) {
postCommand("-break-disable " + bpnr,
NeedsStop | RebuildBreakpointModel,
CB(handleBreakDisable), vid);
return;
}
if (data.enabled && !response.enabled) {
postCommand("-break-enable " + bpnr,
NeedsStop | RebuildBreakpointModel,
CB(handleBreakEnable), vid);
return;
}
handler->notifyBreakpointChangeOk(id);
}
void GdbEngine::removeBreakpoint(BreakpointModelId id)
{
BreakHandler *handler = breakHandler();
QTC_CHECK(handler->state(id) == BreakpointRemoveRequested);
BreakpointResponse br = handler->response(id);
if (br.id.isValid()) {
// We already have a fully inserted breakpoint.
handler->notifyBreakpointRemoveProceeding(id);
showMessage(_("DELETING BP %1 IN %2").arg(br.id.toString())
.arg(handler->fileName(id)));
postCommand("-break-delete " + br.id.toByteArray(),
NeedsStop | RebuildBreakpointModel);
// Pretend it succeeds without waiting for response. Feels better.
// FIXME: Really?
handler->notifyBreakpointRemoveOk(id);
} else {
// Breakpoint was scheduled to be inserted, but we haven't had
// an answer so far. Postpone activity by doing nothing.
}
}
//////////////////////////////////////////////////////////////////////
//
// Modules specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::loadSymbols(const QString &modulePath)
{
// FIXME: gdb does not understand quoted names here (tested with 6.8)
postCommand("sharedlibrary " + dotEscape(modulePath.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.modulePath.toLocal8Bit()));
needUpdate = true;
}
}
}
}
if (needUpdate) {
//reloadModulesInternal();
reloadStack(true);
updateLocals();
}
}
void GdbEngine::requestModuleSymbols(const QString &modulePath)
{
QTemporaryFile tf(QDir::tempPath() + _("/gdbsymbols"));
if (!tf.open())
return;
QString fileName = tf.fileName();
tf.close();
postCommand("maint print msymbols \"" + fileName.toLocal8Bit()
+ "\" " + modulePath.toLocal8Bit(),
NeedsStop, CB(handleShowModuleSymbols),
QVariant(modulePath + QLatin1Char('@') + fileName));
}
void GdbEngine::handleShowModuleSymbols(const GdbResponse &response)
{
const QString cookie = response.cookie.toString();
const QString modulePath = cookie.section(QLatin1Char('@'), 0, 0);
const QString fileName = cookie.section(QLatin1Char('@'), 1, 1);
if (response.resultClass == GdbResultDone) {
Symbols symbols;
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;
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));
symbols.push_back(symbol);
}
file.close();
file.remove();
debuggerCore()->showModuleSymbols(modulePath, symbols);
} else {
showMessageBox(QMessageBox::Critical, tr("Cannot Read Symbols"),
tr("Cannot read symbols for module \"%1\".").arg(fileName));
}
}
void GdbEngine::requestModuleSections(const QString &moduleName)
{
// There seems to be no way to get the symbols from a single .so.
postCommand("maint info section ALLOBJ",
NeedsStop, CB(handleShowModuleSections), moduleName);
}
void GdbEngine::handleShowModuleSections(const GdbResponse &response)
{
// ~" Object file: /usr/lib/i386-linux-gnu/libffi.so.6\n"
// ~" 0xb44a6114->0xb44a6138 at 0x00000114: .note.gnu.build-id ALLOC LOAD READONLY DATA HAS_CONTENTS\n"
if (response.resultClass == GdbResultDone) {
const QString moduleName = response.cookie.toString();
const QStringList lines = QString::fromLocal8Bit(response.consoleStreamOutput).split(QLatin1Char('\n'));
const QString prefix = QLatin1String(" Object file: ");
const QString needle = prefix + moduleName;
Sections sections;
bool active = false;
foreach (const QString &line, lines) {
if (line.startsWith(prefix)) {
if (active)
break;
if (line == needle)
active = true;
} else {
if (active) {
QStringList items = line.split(QLatin1Char(' '), QString::SkipEmptyParts);
QString fromTo = items.value(0, QString());
const int pos = fromTo.indexOf(QLatin1Char('-'));
QTC_ASSERT(pos >= 0, continue);
Section section;
section.from = fromTo.left(pos);
section.to = fromTo.mid(pos + 2);
section.address = items.value(2, QString());
section.name = items.value(3, QString());
section.flags = items.value(4, QString());
sections.append(section);
}
}
} if (!sections.isEmpty())
debuggerCore()->showModuleSections(moduleName, sections);
}
}
void GdbEngine::reloadModules()
{
if (state() == InferiorRunOk || state() == InferiorStopOk)
reloadModulesInternal();
}
void GdbEngine::reloadModulesInternal()
{
postCommand("info shared", NeedsStop, CB(handleModulesList));
}
static QString nameFromPath(const QString &path)
{
return QFileInfo(path).baseName();
}
void GdbEngine::handleModulesList(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
ModulesHandler *handler = modulesHandler();
Module module;
// That's console-based output, likely Linux or Windows,
// but we can avoid the target dependency here.
QString data = QString::fromLocal8Bit(response.consoleStreamOutput);
QTextStream ts(&data, QIODevice::ReadOnly);
bool found = false;
while (!ts.atEnd()) {
QString line = ts.readLine();
QString symbolsRead;
QTextStream ts(&line, QIODevice::ReadOnly);
if (line.startsWith(QLatin1String("0x"))) {
ts >> module.startAddress >> module.endAddress >> symbolsRead;
module.modulePath = ts.readLine().trimmed();
module.moduleName = nameFromPath(module.modulePath);
module.symbolsRead =
(symbolsRead == QLatin1String("Yes") ? Module::ReadOk : Module::ReadFailed);
handler->updateModule(module);
found = true;
} else if (line.trimmed().startsWith(QLatin1String("No"))) {
// gdb 6.4 symbianelf
ts >> symbolsRead;
QTC_ASSERT(symbolsRead == QLatin1String("No"), continue);
module.startAddress = 0;
module.endAddress = 0;
module.modulePath = ts.readLine().trimmed();
module.moduleName = nameFromPath(module.modulePath);
handler->updateModule(module);
found = true;
}
}
if (!found) {
// 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.modulePath =
QString::fromLocal8Bit(item["path"].data());
module.moduleName = nameFromPath(module.modulePath);
module.symbolsRead = (item["state"].data() == "Y")
? Module::ReadOk : Module::ReadFailed;
module.startAddress =
item["loaded_addr"].data().toULongLong(0, 0);
module.endAddress = 0; // FIXME: End address not easily available. handler->updateModule(module);
}
}
}
}
void GdbEngine::examineModules()
{
ModulesHandler *handler = modulesHandler();
foreach (const Module &module, handler->modules()) {
if (module.elfData.symbolsType == UnknownSymbols)
handler->updateModule(module);
}
}
//////////////////////////////////////////////////////////////////////
//
// Source files specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::reloadSourceFiles()
{
if ((state() == InferiorRunOk || state() == InferiorStopOk)
&& !m_sourcesListUpdating)
reloadSourceFilesInternal();
}
void GdbEngine::reloadSourceFilesInternal()
{
QTC_CHECK(!m_sourcesListUpdating);
m_sourcesListUpdating = true;
postCommand("-file-list-exec-source-files", NeedsStop, CB(handleQuerySources));
}
//////////////////////////////////////////////////////////////////////
//
// Stack specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::selectThread(ThreadId threadId)
{
threadsHandler()->setCurrentThread(threadId);
showStatusMessage(tr("Retrieving data for stack view thread 0x%1...")
.arg(threadId.raw(), 0, 16), 10000);
postCommand("-thread-select " + QByteArray::number(threadId.raw()), Discardable,
CB(handleStackSelectThread));
}
void GdbEngine::handleStackSelectThread(const GdbResponse &)
{
QTC_CHECK(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");
resetLocation();
postCommand("-stack-list-frames", Discardable, CB(handleStackListFrames),
QVariant::fromValue<StackCookie>(StackCookie(true, true)));
}
void GdbEngine::loadAdditionalQmlStack()
{
// Scan for QV4::ExecutionContext parameter in the parameter list of a V4 call. postCommand("-stack-list-arguments --simple-values", NeedsStop, CB(handleQmlStackFrameArguments));
}
// Scan the arguments of a stack list for the address of a QV4::ExecutionContext.
static quint64 findJsExecutionContextAddress(const GdbMi &stackArgsResponse, const QByteArray &qtNamespace)
{
const GdbMi frameList = stackArgsResponse.childAt(0);
if (!frameList.childCount())
return 0;
QByteArray jsExecutionContextType = qtNamespace;
if (!jsExecutionContextType.isEmpty())
jsExecutionContextType.append("::");
jsExecutionContextType.append("QV4::ExecutionContext *");
foreach (const GdbMi &frameNode, frameList.children()) {
foreach (const GdbMi &argNode, frameNode["args"].children()) {
if (argNode["type"].data() == jsExecutionContextType) {
bool ok;
const quint64 address = argNode["value"].data().toULongLong(&ok, 16);
if (ok && address)
return address;
}
}
}
return 0;
}
static QString msgCannotLoadQmlStack(const QString &why)
{
return _("Unable to load QML stack: ") + why;
}
void GdbEngine::handleQmlStackFrameArguments(const GdbResponse &response)
{
if (!response.data.isValid()) {
showMessage(msgCannotLoadQmlStack(_("No stack obtained.")), LogError);
return;
}
const quint64 contextAddress = findJsExecutionContextAddress(response.data, qtNamespace());
if (!contextAddress) {
showMessage(msgCannotLoadQmlStack(_("The address of the JS execution context could not be found.")), LogError);
return;
}
// Call the debug function of QML with the context address to obtain the QML stack trace.
QByteArray command = "-data-evaluate-expression \"qt_v4StackTrace((QV4::ExecutionContext *)0x";
command += QByteArray::number(contextAddress, 16);
command += ")\"";
postCommand(command, CB(handleQmlStackTrace));
}
void GdbEngine::handleQmlStackTrace(const GdbResponse &response)
{
if (!response.data.isValid()) {
showMessage(msgCannotLoadQmlStack(_("No result obtained.")), LogError);
return;
}
// Prepend QML stack frames to existing C++ stack frames.
QByteArray stackData = response.data["value"].data();
const int index = stackData.indexOf("stack=");
if (index == -1) {
showMessage(msgCannotLoadQmlStack(_("Malformed result.")), LogError);
return;
}
stackData.remove(0, index);
stackData.replace("\\\"", "\"");
GdbMi stackMi;
stackMi.fromString(stackData);
const int qmlFrameCount = stackMi.childCount();
if (!qmlFrameCount) {
showMessage(msgCannotLoadQmlStack(_("No stack frames obtained.")), LogError);
return; }
QList<StackFrame> qmlFrames;
qmlFrames.reserve(qmlFrameCount);
for (int i = 0; i < qmlFrameCount; ++i) {
StackFrame frame = parseStackFrame(stackMi.childAt(i), i);
frame.fixQmlFrame(startParameters());
qmlFrames.append(frame);
}
stackHandler()->prependFrames(qmlFrames);
}
void GdbEngine::reloadStack(bool forceGotoLocation)
{
PENDING_DEBUG("RELOAD STACK");
QByteArray cmd = "-stack-list-frames";
int stackDepth = debuggerCore()->action(MaximalStackDepth)->value().toInt();
if (stackDepth)
cmd += " 0 " + QByteArray::number(stackDepth);
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["fullname"];
if (fullName.isValid())
frame.file = cleanupFullName(QFile::decodeName(fullName.data()));
else
frame.file = QFile::decodeName(frameMi["file"].data());
frame.function = _(frameMi["func"].data());
frame.from = _(frameMi["from"].data());
frame.line = frameMi["line"].toInt();
frame.address = frameMi["addr"].toAddress();
frame.usable = QFileInfo(frame.file).isReadable();
if (frameMi["language"].data() == "js")
frame.language = QmlLanguage;
return frame;
}
void GdbEngine::handleStackListFrames(const GdbResponse &response)
{
if (response.resultClass != GdbResultDone) {
// 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["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();
// 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);
if (handler->frameAt(frameIndex).language == QmlLanguage) {
gotoLocation(handler->frameAt(frameIndex));
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)
{ if (response.resultClass == GdbResultDone) {
ThreadsHandler *handler = threadsHandler();
handler->updateThreads(response.data);
// This is necessary as the current thread might not be in the list.
if (!handler->currentThread().isValid()) {
ThreadId other = handler->threadAt(0);
if (other.isValid())
selectThread(other);
}
updateViews(); // Adjust Threads combobox.
if (debuggerCore()->boolSetting(ShowThreadNames)) {
postCommand("threadnames " +
debuggerCore()->action(MaximalStackDepth)->value().toByteArray(),
Discardable, CB(handleThreadNames));
}
reloadStack(false); // Will trigger register reload.
} else {
// Fall back for older versions: Try to get at least a list
// of running threads.
postCommand("-thread-list-ids", Discardable, CB(handleThreadListIds));
}
}
void GdbEngine::handleThreadListIds(const GdbResponse &response)
{
// "72^done,{thread-ids={thread-id="2",thread-id="1"},number-of-threads="2"}
// In gdb 7.1+ additionally: current-thread-id="1"
ThreadsHandler *handler = threadsHandler();
const QList<GdbMi> items = response.data["thread-ids"].children();
for (int index = 0, n = items.size(); index != n; ++index) {
ThreadData thread;
thread.id = ThreadId(items.at(index).toInt());
handler->updateThread(thread);
}
reloadStack(false); // Will trigger register reload.
}
void GdbEngine::handleThreadNames(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
ThreadsHandler *handler = threadsHandler();
GdbMi names;
names.fromString(response.consoleStreamOutput);
foreach (const GdbMi &name, names.children()) {
ThreadData thread;
thread.id = ThreadId(name["id"].toInt());
thread.name = decodeData(name["value"].data(),
name["valueencoded"].toInt());
handler->updateThread(thread);
}
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|ConsoleCommand, 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;
DebuggerRunControlFactory::createAndScheduleRun(sp);
} else {
QByteArray msg = response.data["msg"].data();
showMessageBox(QMessageBox::Critical, tr("Snapshot Creation Error"),
tr("Cannot create snapshot:") + QLatin1Char('\n') + QString::fromLocal8Bit(msg));
}
}
//////////////////////////////////////////////////////////////////////
//
// Register specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::reloadRegisters()
{
if (!debuggerCore()->isDockVisible(_(DOCKWIDGET_REGISTER)))
return;
if (state() != InferiorStopOk && state() != InferiorUnrunnable)
return;
if (!m_registerNamesListed) {
postCommand("-data-list-register-names", CB(handleRegisterListNames));
m_registerNamesListed = true;
}
postCommand("-data-list-register-values r",
Discardable, CB(handleRegisterListValues));
}
void GdbEngine::setRegisterValue(int nr, const QString &value)
{
Register reg = registerHandler()->registers().at(nr);
postCommand("set $" + reg.name + "=" + value.toLatin1());
reloadRegisters();
}
void GdbEngine::handleRegisterListNames(const GdbResponse &response)
{
if (response.resultClass != GdbResultDone) {
m_registerNamesListed = false;
return;
}
Registers registers;
int gdbRegisterNumber = 0, internalIndex = 0;
// This both handles explicitly having space for all the registers and // initializes all indices to 0, giving missing registers a sane default
// in the event of something wacky.
GdbMi names = response.data["register-names"];
m_registerNumbers.resize(names.childCount());
foreach (const GdbMi &item, names.children()) {
// Since we throw away missing registers to eliminate empty rows
// we need to maintain a mapping of GDB register numbers to their
// respective indices in the register list.
if (!item.data().isEmpty()) {
m_registerNumbers[gdbRegisterNumber] = internalIndex++;
registers.append(Register(item.data()));
}
gdbRegisterNumber++;
}
registerHandler()->setRegisters(registers);
}
void GdbEngine::handleRegisterListValues(const GdbResponse &response)
{
if (response.resultClass != GdbResultDone)
return;
Registers registers = registerHandler()->registers();
const int registerCount = registers.size();
const int gdbRegisterCount = m_registerNumbers.size();
// 24^done,register-values=[{number="0",value="0xf423f"},...]
const GdbMi values = response.data["register-values"];
QTC_ASSERT(registerCount == values.children().size(), return);
foreach (const GdbMi &item, values.children()) {
const int number = item["number"].toInt();
if (number >= 0 && number < gdbRegisterCount)
registers[m_registerNumbers[number]].value = item["value"].data();
}
registerHandler()->setAndMarkRegisters(registers);
}
//////////////////////////////////////////////////////////////////////
//
// Tooltip specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::showToolTip()
{
if (m_toolTipContext.isNull())
return;
const QString expression = m_toolTipContext->expression;
if (DebuggerToolTipManager::debug())
qDebug() << "GdbEngine::showToolTip " << expression << m_toolTipContext->iname << (*m_toolTipContext);
if (m_toolTipContext->iname.startsWith("tooltip")
&& (!debuggerCore()->boolSetting(UseToolTipsInMainEditor)
|| !watchHandler()->isValidToolTip(m_toolTipContext->iname))) {
watchHandler()->removeData(m_toolTipContext->iname);
return;
}
DebuggerToolTipWidget *tw = new DebuggerToolTipWidget;
tw->setContext(*m_toolTipContext);
tw->acquireEngine(this);
DebuggerToolTipManager::showToolTip(m_toolTipContext->mousePosition, tw);
// Prevent tooltip from re-occurring (classic GDB, QTCREATORBUG-4711).
m_toolTipContext.reset();
}
QString GdbEngine::tooltipExpression() const
{ return m_toolTipContext.isNull() ? QString() : m_toolTipContext->expression;
}
void GdbEngine::resetLocation()
{
m_toolTipContext.reset();
DebuggerEngine::resetLocation();
}
bool GdbEngine::setToolTipExpression(const QPoint &mousePos,
TextEditor::ITextEditor *editor, const DebuggerToolTipContext &contextIn)
{
if (state() != InferiorStopOk || !isCppEditor(editor)) {
//qDebug() << "SUPPRESSING DEBUGGER TOOLTIP, INFERIOR NOT STOPPED "
// " OR NOT A CPPEDITOR";
return false;
}
DebuggerToolTipContext context = contextIn;
int line, column;
QString exp = fixCppExpression(cppExpressionAt(editor, context.position, &line, &column, &context.function));
if (exp.isEmpty())
return false;
// Prefer a filter on an existing local variable if it can be found.
QByteArray iname;
if (const WatchData *localVariable = watchHandler()->findCppLocalVariable(exp)) {
exp = QLatin1String(localVariable->exp);
iname = localVariable->iname;
} else {
iname = tooltipIName(exp);
}
if (DebuggerToolTipManager::debug())
qDebug() << "GdbEngine::setToolTipExpression1 " << exp << iname << context;
// Same expression: Display synchronously.
if (!m_toolTipContext.isNull() && m_toolTipContext->expression == exp) {
showToolTip();
return true;
}
m_toolTipContext.reset(new DebuggerToolTipContext(context));
m_toolTipContext->mousePosition = mousePos;
m_toolTipContext->expression = exp;
m_toolTipContext->iname = iname;
// Local variable: Display synchronously.
if (iname.startsWith("local")) {
showToolTip();
return true;
}
if (DebuggerToolTipManager::debug())
qDebug() << "GdbEngine::setToolTipExpression2 " << exp << (*m_toolTipContext);
UpdateParameters params;
params.tryPartial = true;
params.tooltipOnly = true;
params.varList = iname;
updateLocalsPython(params);
return true;
}
//////////////////////////////////////////////////////////////////////
//
// Watch specific stuff
//
//////////////////////////////////////////////////////////////////////
void GdbEngine::reloadLocals(){
setTokenBarrier();
updateLocals();
}
void GdbEngine::updateWatchData(const WatchData &data, const WatchUpdateFlags &flags)
{
// 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 (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
// << (m_pendingBreakpointRequests == 0);
UpdateParameters params;
params.tooltipOnly = data.iname.startsWith("tooltip");
params.tryPartial = flags.tryIncremental
&& m_pendingBreakpointRequests == 0;
params.varList = data.iname;
updateLocalsPython(params);
}
void GdbEngine::rebuildWatchModel()
{
QTC_CHECK(m_completed.isEmpty());
QTC_CHECK(m_uncompleted.isEmpty());
static int count = 0;
++count;
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);
showToolTip();
}
void GdbEngine::handleVarAssign(const GdbResponse &)
{
// Everything might have changed, force re-evaluation.
setTokenBarrier();
updateLocals();
}
void GdbEngine::updateLocals()
{
watchHandler()->resetValueCache();
updateLocalsPython(UpdateParameters());
}
void GdbEngine::insertData(const WatchData &data){
PENDING_DEBUG("INSERT DATA" << data.toString());
if (data.isSomethingNeeded()) {
m_uncompleted.insert(data.iname);
WatchUpdateFlags flags;
flags.tryIncremental = true;
updateWatchData(data, flags);
} else {
m_completed.append(data);
m_uncompleted.remove(data.iname);
if (m_uncompleted.isEmpty()) {
watchHandler()->insertData(m_completed);
m_completed.clear();
rebuildWatchModel();
}
}
}
void GdbEngine::assignValueInDebugger(const WatchData *data,
const QString &expression, const QVariant &value)
{
if (!isIntOrFloatType(data->type)) {
QByteArray cmd = "bbedit "
+ data->type.toHex() + ','
+ expression.toUtf8().toHex() + ','
+ value.toString().toUtf8().toHex();
postCommand(cmd, Discardable, CB(handleVarAssign));
} else {
postCommand("set variable (" + expression.toLatin1() + ")="
+ GdbMi::escapeCString(value.toString().toLatin1()),
Discardable, CB(handleVarAssign));
}
}
void GdbEngine::watchPoint(const QPoint &pnt)
{
QByteArray x = QByteArray::number(pnt.x());
QByteArray y = QByteArray::number(pnt.y());
postCommand("print '" + qtNamespace() + "QApplication::widgetAt'("
+ x + ',' + y + ')',
NeedsStop, CB(handleWatchPoint));
}
void GdbEngine::handleWatchPoint(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
// "$5 = (void *) 0xbfa7ebfc\n"
const QByteArray ba = parsePlainConsoleStream(response);
//qDebug() << "BA: " << ba;
const int posWidget = ba.indexOf("QWidget");
const int pos0x = ba.indexOf("0x", posWidget + 7);
if (posWidget == -1 || pos0x == -1) {
showStatusMessage(tr("Cannot read widget data: %1").arg(_(ba)));
} else {
const QByteArray addr = ba.mid(pos0x);
if (addr.toULongLong(0, 0)) { // Non-null pointer
const QByteArray ns = qtNamespace();
const QByteArray type = ns.isEmpty() ? "QWidget*"
: QByteArray("'" + ns + "QWidget'*");
const QString exp = _("(*(struct %1)%2)").arg(_(type)).arg(_(addr));
// qDebug() << posNs << posWidget << pos0x << addr << ns << type;
watchHandler()->watchExpression(exp);
} else {
showStatusMessage(tr("Could not find a widget."));
}
}
}
}
class MemoryAgentCookie{
public:
MemoryAgentCookie()
: accumulator(0), pendingRequests(0), agent(0), token(0), base(0), offset(0), length(0)
{}
public:
QByteArray *accumulator; // Shared between split request. Last one cleans up.
uint *pendingRequests; // Shared between split request. Last one cleans up.
QPointer<MemoryAgent> agent;
QPointer<QObject> token;
quint64 base; // base address.
uint offset; // offset to base, and in accumulator
uint length; //
};
void GdbEngine::changeMemory(MemoryAgent *agent, QObject *token,
quint64 addr, const QByteArray &data)
{
QByteArray cmd = "-data-write-memory 0x" + QByteArray::number(addr, 16) + " d 1";
foreach (unsigned char c, data) {
cmd.append(' ');
cmd.append(QByteArray::number(uint(c)));
}
MemoryAgentCookie ac;
ac.agent = agent;
ac.token = token;
ac.base = addr;
ac.length = data.size();
postCommand(cmd, NeedsStop, CB(handleChangeMemory), QVariant::fromValue(ac));
}
void GdbEngine::handleChangeMemory(const GdbResponse &response)
{
Q_UNUSED(response);
}
void GdbEngine::fetchMemory(MemoryAgent *agent, QObject *token, quint64 addr,
quint64 length)
{
MemoryAgentCookie ac;
ac.accumulator = new QByteArray(length, char());
ac.pendingRequests = new uint(1);
ac.agent = agent;
ac.token = token;
ac.base = addr;
ac.length = length;
fetchMemoryHelper(ac);
}
void GdbEngine::fetchMemoryHelper(const MemoryAgentCookie &ac)
{
postCommand("-data-read-memory 0x" + QByteArray::number(ac.base + ac.offset, 16) + " x 1 1 "
+ QByteArray::number(ac.length),
NeedsStop, CB(handleFetchMemory), QVariant::fromValue(ac));
}
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>();
--*ac.pendingRequests;
showMessage(QString::fromLatin1("PENDING: %1").arg(*ac.pendingRequests));
QTC_ASSERT(ac.agent, return);
if (response.resultClass == GdbResultDone) { GdbMi memory = response.data["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["data"];
for (int i = 0, n = data.children().size(); i != n; ++i) {
const GdbMi &child = data.children().at(i);
bool ok = true;
unsigned char c = '?';
c = child.data().toUInt(&ok, 0);
QTC_ASSERT(ok, return);
(*ac.accumulator)[ac.offset + i] = c;
}
} else {
// We have an error
if (ac.length > 1) {
// ... and size > 1, split the load and re-try.
*ac.pendingRequests += 2;
uint hunk = ac.length / 2;
MemoryAgentCookie ac1 = ac;
ac1.length = hunk;
ac1.offset = ac.offset;
MemoryAgentCookie ac2 = ac;
ac2.length = ac.length - hunk;
ac2.offset = ac.offset + hunk;
fetchMemoryHelper(ac1);
fetchMemoryHelper(ac2);
}
}
if (*ac.pendingRequests <= 0) {
ac.agent->addLazyData(ac.token, ac.base, *ac.accumulator);
delete ac.pendingRequests;
delete ac.accumulator;
}
}
class DisassemblerAgentCookie
{
public:
DisassemblerAgentCookie() : agent(0) {}
DisassemblerAgentCookie(DisassemblerAgent *agent_) : agent(agent_) {}
public:
QPointer<DisassemblerAgent> agent;
};
void GdbEngine::fetchDisassembler(DisassemblerAgent *agent)
{
// Doing that unconditionally seems to be the most robust
// solution given the richest output. Looks like GDB is
// a command line tool after all...
fetchDisassemblerByCliPointMixed(agent);
}
static inline QByteArray disassemblerCommand(const Location &location, bool mixed)
{
QByteArray command = "disassemble /r";
if (mixed)
command += 'm';
command += ' ';
if (const quint64 address = location.address()) {
command += "0x";
command += QByteArray::number(address, 16);
} else if (!location.functionName().isEmpty()) {
command += location.functionName().toLatin1();
} else {
QTC_ASSERT(false, return QByteArray(); );
} return command;
}
void GdbEngine::fetchDisassemblerByCliPointMixed(const DisassemblerAgentCookie &ac0)
{
DisassemblerAgentCookie ac = ac0;
QTC_ASSERT(ac.agent, return);
postCommand(disassemblerCommand(ac.agent->location(), true), Discardable|ConsoleCommand,
CB(handleFetchDisassemblerByCliPointMixed),
QVariant::fromValue(ac));
}
void GdbEngine::fetchDisassemblerByCliRangeMixed(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);
QByteArray cmd = "disassemble /rm 0x" + start + ",0x" + end;
postCommand(cmd, Discardable|ConsoleCommand,
CB(handleFetchDisassemblerByCliRangeMixed), QVariant::fromValue(ac));
}
void GdbEngine::fetchDisassemblerByCliRangePlain(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);
QByteArray cmd = "disassemble /r 0x" + start + ",0x" + end;
postCommand(cmd, Discardable,
CB(handleFetchDisassemblerByCliRangePlain), QVariant::fromValue(ac));
}
struct LineData
{
LineData() {}
LineData(int i, int f) : index(i), function(f) {}
int index;
int function;
};
bool GdbEngine::handleCliDisassemblerResult(const QByteArray &output, DisassemblerAgent *agent)
{
// First line is something like
// "Dump of assembler code from 0xb7ff598f to 0xb7ff5a07:"
DisassemblerLines dlines;
foreach (const QByteArray &line, output.split('\n'))
dlines.appendUnparsed(_(line));
QVector<DisassemblerLine> lines = dlines.data();
typedef QMap<quint64, LineData> LineMap;
LineMap lineMap;
int currentFunction = -1;
for (int i = 0, n = lines.size(); i != n; ++i) {
const DisassemblerLine &line = lines.at(i);
if (line.address)
lineMap.insert(line.address, LineData(i, currentFunction));
else
currentFunction = i;
}
currentFunction = -1;
DisassemblerLines result;
result.setBytesLength(dlines.bytesLength());
for (LineMap::const_iterator it = lineMap.begin(), et = lineMap.end(); it != et; ++it) { LineData d = *it;
if (d.function != currentFunction) {
if (d.function != -1) {
DisassemblerLine &line = lines[d.function];
++line.hunk;
result.appendLine(line);
currentFunction = d.function;
}
}
result.appendLine(lines.at(d.index));
}
if (result.coversAddress(agent->address())) {
agent->setContents(result);
return true;
}
return false;
}
void GdbEngine::reloadDisassembly()
{
setTokenBarrier();
updateLocals();
}
void GdbEngine::handleFetchDisassemblerByCliPointMixed(const GdbResponse &response)
{
DisassemblerAgentCookie ac = response.cookie.value<DisassemblerAgentCookie>();
QTC_ASSERT(ac.agent, return);
if (response.resultClass == GdbResultDone)
if (handleCliDisassemblerResult(response.consoleStreamOutput, ac.agent))
return;
// 'point, plain' can take far too long.
// Skip this feature and immediately fall back to the 'range' version:
fetchDisassemblerByCliRangeMixed(ac);
}
void GdbEngine::handleFetchDisassemblerByCliRangeMixed(const GdbResponse &response)
{
DisassemblerAgentCookie ac = response.cookie.value<DisassemblerAgentCookie>();
QTC_ASSERT(ac.agent, return);
if (response.resultClass == GdbResultDone)
if (handleCliDisassemblerResult(response.consoleStreamOutput, ac.agent))
return;
fetchDisassemblerByCliRangePlain(ac);
}
void GdbEngine::handleFetchDisassemblerByCliRangePlain(const GdbResponse &response)
{
DisassemblerAgentCookie ac = response.cookie.value<DisassemblerAgentCookie>();
QTC_ASSERT(ac.agent, return);
if (response.resultClass == GdbResultDone)
if (handleCliDisassemblerResult(response.consoleStreamOutput, ac.agent))
return;
// Finally, give up.
//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;
QByteArray msg = response.data["msg"].data();
showStatusMessage(tr("Disassembler failed: %1")
.arg(QString::fromLocal8Bit(msg)), 5000);
}
// Binary/configuration check logic.
static QString gdbBinary(const DebuggerStartParameters &sp)
{
// 1) Environment.
const QByteArray envBinary = qgetenv("QTC_DEBUGGER_PATH");
if (!envBinary.isEmpty())
return QString::fromLocal8Bit(envBinary);
// 2) Command from profile.
return sp.debuggerCommand;
}
static GlobalDebuggerOptions::SourcePathMap mergeStartParametersSourcePathMap(
const DebuggerStartParameters &sp, const GlobalDebuggerOptions::SourcePathMap &in)
{
// Do not overwrite user settings.
GlobalDebuggerOptions::SourcePathMap rc = sp.sourcePathMap;
QMap<QString, QString>::const_iterator end = in.end();
for (QMap<QString, QString>::const_iterator it = in.begin(); it != end; ++it)
rc.insert(it.key(), it.value());
return rc;
}
//
// Starting up & shutting down
//
void GdbEngine::startGdb(const QStringList &args)
{
const QByteArray tests = qgetenv("QTC_DEBUGGER_TESTS");
foreach (const QByteArray &test, tests.split(','))
m_testCases.insert(test.toInt());
foreach (int test, m_testCases)
showMessage(_("ENABLING TEST CASE: " + QByteArray::number(test)));
m_gdbProc->disconnect(); // From any previous runs
const DebuggerStartParameters &sp = startParameters();
m_gdb = gdbBinary(sp);
if (m_gdb.isEmpty()) {
handleGdbStartFailed();
handleAdapterStartFailed(
msgNoGdbBinaryForToolChain(sp.toolChainAbi),
Constants::DEBUGGER_COMMON_SETTINGS_ID);
return;
}
QStringList gdbArgs;
gdbArgs << _("-i");
gdbArgs << _("mi");
if (!debuggerCore()->boolSetting(LoadGdbInit))
gdbArgs << _("-n");
gdbArgs += args;
connect(m_gdbProc, SIGNAL(error(QProcess::ProcessError)),
SLOT(handleGdbError(QProcess::ProcessError)));
connect(m_gdbProc, SIGNAL(finished(int,QProcess::ExitStatus)),
SLOT(handleGdbFinished(int,QProcess::ExitStatus)));
connect(m_gdbProc, SIGNAL(readyReadStandardOutput()),
SLOT(readGdbStandardOutput()));
connect(m_gdbProc, SIGNAL(readyReadStandardError()),
SLOT(readGdbStandardError()));
showMessage(_("STARTING ") + m_gdb + _(" ") + gdbArgs.join(_(" ")));
m_gdbProc->start(m_gdb, gdbArgs);
if (!m_gdbProc->waitForStarted()) {
handleGdbStartFailed();
const QString msg = errorMessage(QProcess::FailedToStart);
handleAdapterStartFailed(msg);
return; }
showMessage(_("GDB STARTED, INITIALIZING IT"));
postCommand("show version", CB(handleShowVersion));
//postCommand("-list-features", CB(handleListFeatures));
postCommand("show debug-file-directory", CB(handleDebugInfoLocation));
//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");
//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");
// 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
// This seems to be fixed, however, with 'on' it seems to _require_
// explicit casting of function pointers:
// GNU gdb (GDB) 7.5.91.20130417-cvs-ubuntu
// (gdb) p &Myns::QMetaType::typeName -> $1 = (const char *(*)(int)) 0xb7cf73b0 <Myns::QMetaType::typeName(int)>
// (gdb) p Myns::QMetaType::typeName(1024) -> 31^error,msg="Couldn't find method Myns::QMetaType::typeName"
// But we can work around on the dumper side. So let's use the default (i.e. 'on')
//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");
postCommand("set unwindonsignal on");
postCommand("set width 0");
postCommand("set height 0");
// FIXME: Provide proper Gui settings for these:
//postCommand("set breakpoint always-inserted on", ConsoleCommand);
// displaced-stepping does not work in Thumb mode.
//postCommand("set displaced-stepping on");
//postCommand("set trust-readonly-sections on", ConsoleCommand);
//postCommand("set remotecache on", ConsoleCommand);
//postCommand("set non-stop on", ConsoleCommand);
typedef GlobalDebuggerOptions::SourcePathMap SourcePathMap; typedef SourcePathMap::const_iterator SourcePathMapIterator;
showStatusMessage(tr("Setting up inferior..."));
// Addint executable to modules list.
Module module;
module.startAddress = 0;
module.endAddress = 0;
module.modulePath = sp.executable;
module.moduleName = QLatin1String("<executable>");
modulesHandler()->updateModule(module);
// Apply source path mappings from global options.
//showMessage(_("Assuming Qt is installed at %1").arg(qtInstallPath));
const SourcePathMap sourcePathMap =
DebuggerSourcePathMappingWidget::mergePlatformQtPath(sp,
debuggerCore()->globalDebuggerOptions()->sourcePathMap);
const SourcePathMap completeSourcePathMap =
mergeStartParametersSourcePathMap(sp, sourcePathMap);
const SourcePathMapIterator cend = completeSourcePathMap.constEnd();
SourcePathMapIterator it = completeSourcePathMap.constBegin();
for ( ; it != cend; ++it)
postCommand("set substitute-path " + it.key().toLocal8Bit()
+ " " + it.value().toLocal8Bit());
// Spaces just will not work.
foreach (const QString &src, sp.debugSourceLocation) {
if (QDir(src).exists())
postCommand("directory " + src.toLocal8Bit());
else
showMessage(_("# directory does not exist: ") + src, LogInput);
}
const QByteArray sysroot = sp.sysRoot.toLocal8Bit();
if (!sysroot.isEmpty()) {
postCommand("set sysroot " + sysroot);
// sysroot is not enough to correctly locate the sources, so explicitly
// relocate the most likely place for the debug source
postCommand("set substitute-path /usr/src " + sysroot + "/usr/src");
}
//QByteArray ba = QFileInfo(sp.dumperLibrary).path().toLocal8Bit();
//if (!ba.isEmpty())
// postCommand("set solib-search-path " + ba);
if (attemptQuickStart()) {
postCommand("set auto-solib-add off", ConsoleCommand);
} else {
m_fullStartDone = true;
postCommand("set auto-solib-add on", ConsoleCommand);
}
if (debuggerCore()->boolSetting(MultiInferior)) {
//postCommand("set follow-exec-mode new");
postCommand("set detach-on-fork off");
}
// Finally, set up Python.
// We need to guarantee a roundtrip before the adapter proceeds.
// Make sure this stays the last command in startGdb().
// Don't use ConsoleCommand, otherwise Mac won't markup the output.
const QByteArray dumperSourcePath =
Core::ICore::resourcePath().toLocal8Bit() + "/debugger/";
const QFileInfo gdbBinaryFile(m_gdb);
const QByteArray uninstalledData = gdbBinaryFile.absolutePath().toLocal8Bit()
+ "/data-directory/python";
const GdbCommandFlags flags = ConsoleCommand | Immediate;
postCommand("python sys.path.insert(1, '" + dumperSourcePath + "')", flags);
postCommand("python sys.path.append('" + uninstalledData + "')", flags); postCommand("python from gdbbridge import *", flags, CB(handlePythonSetup));
}
void GdbEngine::handleGdbStartFailed()
{
}
void GdbEngine::loadInitScript()
{
const QString script = startParameters().overrideStartScript;
if (!script.isEmpty()) {
if (QFileInfo(script).isReadable()) {
postCommand("source " + script.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(script));
}
} else {
const QString commands = debuggerCore()->stringSetting(GdbStartupCommands);
if (!commands.isEmpty())
postCommand(commands.toLocal8Bit());
}
}
void GdbEngine::reloadDebuggingHelpers()
{
postCommand("bbsetup");
}
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:
//m_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 terminated.") :
tr("The gdb process terminated unexpectedly (code %1)").arg(code);
showMessageBox(QMessageBox::Critical, tr("Unexpected GDB Exit"), msg);
break;
}
}
}
void GdbEngine::abortDebugger()
{
if (targetState() == DebuggerFinished) {
// We already tried. Try harder.
showMessage(_("ABORTING DEBUGGER. SECOND TIME."));
QTC_ASSERT(m_gdbProc, return);
m_gdbProc->kill();
} else {
// Be friendly the first time. This will change targetState().
showMessage(_("ABORTING DEBUGGER. FIRST TIME."));
quitDebugger();
}
}
void GdbEngine::handleAdapterStartFailed(const QString &msg,
Core::Id settingsIdHint)
{
QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
showMessage(_("ADAPTER START FAILED"));
if (!msg.isEmpty()) {
const QString title = tr("Adapter start failed");
if (!settingsIdHint.isValid()) {
Core::ICore::showWarningWithOptions(title, msg);
} else {
Core::ICore::showWarningWithOptions(title, msg, QString(),
Constants::DEBUGGER_SETTINGS_CATEGORY, settingsIdHint);
}
}
notifyEngineSetupFailed();
}
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()
{
const DebuggerStartParameters &sp = startParameters();
QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << state());
if (!sp.commandsAfterConnect.isEmpty()) {
foreach (QByteArray command, sp.commandsAfterConnect.split('\n')) {
postCommand(command);
}
}
if (debuggerCore()->boolSetting(IntelFlavor)) {
//postCommand("set follow-exec-mode new");
postCommand("set disassembly-flavor intel"); }
if (sp.breakOnMain) {
QByteArray cmd = "tbreak ";
cmd += sp.toolChainAbi.os() == Abi::WindowsOS ? "qMain" : "main";
postCommand(cmd);
}
// Initial attempt to set breakpoints.
if (sp.startMode != AttachCore) {
showStatusMessage(tr("Setting breakpoints..."));
showMessage(tr("Setting breakpoints..."));
attemptBreakpointSynchronization();
}
if (m_cookieForToken.isEmpty()) {
finishInferiorSetup();
} else {
QTC_CHECK(m_commandsDoneCallback == 0);
m_commandsDoneCallback = &GdbEngine::finishInferiorSetup;
}
}
void GdbEngine::finishInferiorSetup()
{
QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << state());
if (startParameters().startMode == AttachCore) {
notifyInferiorSetupOk(); // No breakpoints in core files.
} else {
if (debuggerCore()->boolSetting(BreakOnAbort))
postCommand("-break-insert -f abort");
if (debuggerCore()->boolSetting(BreakOnWarning)) {
postCommand("-break-insert -f '" + qtNamespace() + "qWarning'");
postCommand("-break-insert -f '" + qtNamespace() + "QMessageLogger::warning'");
}
if (debuggerCore()->boolSetting(BreakOnFatal)) {
postCommand("-break-insert -f '" + qtNamespace() + "qFatal'",
CB(handleBreakOnQFatal), QVariant(false));
postCommand("-break-insert -f '" + qtNamespace() + "QMessageLogger::fatal'",
CB(handleBreakOnQFatal), QVariant(true));
} else {
notifyInferiorSetupOk();
}
}
}
void GdbEngine::handleDebugInfoLocation(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
const QByteArray debugInfoLocation = startParameters().debugInfoLocation.toLocal8Bit();
if (QFile::exists(QString::fromLocal8Bit(debugInfoLocation))) {
const QByteArray curDebugInfoLocations = response.consoleStreamOutput.split('"').value(1);
if (curDebugInfoLocations.isEmpty()) {
postCommand("set debug-file-directory " + debugInfoLocation);
} else {
postCommand("set debug-file-directory " + debugInfoLocation
+ HostOsInfo::pathListSeparator().toLatin1()
+ curDebugInfoLocations);
}
}
}
}
void GdbEngine::handleBreakOnQFatal(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
GdbMi bkpt = response.data["bkpt"];
GdbMi number = bkpt["number"];
BreakpointResponseId rid(number.data()); if (rid.isValid()) {
m_qFatalBreakpointResponseId = rid;
postCommand("-break-commands " + number.data() + " return");
}
}
// Continue setup.
if (response.cookie.toBool())
notifyInferiorSetupOk();
}
void GdbEngine::notifyInferiorSetupFailed(const QString &msg)
{
showStatusMessage(tr("Failed to start application:") + QLatin1Char(' ') + 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.
if (state() == EngineSetupRequested)
notifyEngineSetupFailed();
else
notifyEngineIll();
// No point in being friendly here ...
m_gdbProc->kill();
if (!msg.isEmpty())
showMessageBox(QMessageBox::Critical, tr("Adapter crashed"), msg);
}
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.consoleStreamOutput + response.logStreamOutput));
}
}
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);
}}
bool GdbEngine::setupQmlStep(bool on)
{
QTC_ASSERT(isSlaveEngine(), return false);
m_qmlBreakpointResponseId1 = BreakpointResponseId();
m_qmlBreakpointResponseId2 = BreakpointResponseId();
//qDebug() << "CLEAR: " << m_qmlBreakpointNumbers;
postCommand("tbreak '" + qtNamespace() + "QScript::FunctionWrapper::proxyCall'\n"
"commands\n"
"set $d=(void*)((FunctionWrapper*)callee)->data->function\n"
"tbreak *$d\nprintf \"QMLBP:%d \\n\",$bpnum\ncontinue\nend",
NeedsStop, CB(handleSetQmlStepBreakpoint));
m_preparedForQmlBreak = on;
return true;
}
void GdbEngine::handleSetQmlStepBreakpoint(const GdbResponse &response)
{
//QTC_ASSERT(state() == EngineRunRequested, qDebug() << state());
if (response.resultClass == GdbResultDone) {
// logStreamOutput: "tbreak 'myns::QScript::FunctionWrapper::proxyCall'\n"
// consoleStreamOutput: "Temporary breakpoint 1 at 0xf166e7:
// file bridge/qscriptfunction.cpp, line 75.\n"}
QByteArray ba = parsePlainConsoleStream(response);
const int pos2 = ba.indexOf(" at 0x");
const int pos1 = ba.lastIndexOf(" ", pos2 - 1) + 1;
QByteArray mid = ba.mid(pos1, pos2 - pos1);
m_qmlBreakpointResponseId1 = BreakpointResponseId(mid);
//qDebug() << "SET: " << m_qmlBreakpointResponseId1;
}
QTC_ASSERT(masterEngine(), return);
masterEngine()->readyToExecuteQmlStep();
}
bool GdbEngine::isQmlStepBreakpoint(const BreakpointResponseId &id) const
{
return isQmlStepBreakpoint1(id) || isQmlStepBreakpoint2(id);
}
bool GdbEngine::isQmlStepBreakpoint1(const BreakpointResponseId &id) const
{
return id.isValid() && m_qmlBreakpointResponseId1 == id;
}
bool GdbEngine::isQmlStepBreakpoint2(const BreakpointResponseId &id) const
{
return id.isValid() && m_qmlBreakpointResponseId2 == id;
}
bool GdbEngine::isQFatalBreakpoint(const BreakpointResponseId &id) const
{
return id.isValid() && m_qFatalBreakpointResponseId == id;
}
bool GdbEngine::isHiddenBreakpoint(const BreakpointResponseId &id) const
{
return isQFatalBreakpoint(id) || isQmlStepBreakpoint(id);
}
bool GdbEngine::usesExecInterrupt() const
{
// debuggerCore()->boolSetting(TargetAsync)
DebuggerStartMode mode = startParameters().startMode;
return (mode == AttachToRemoteServer || mode == AttachToRemoteProcess)
&& debuggerCore()->boolSetting(TargetAsync);
}
void GdbEngine::scheduleTestResponse(int testCase, const QByteArray &response)
{ if (!m_testCases.contains(testCase) && startParameters().testCase != testCase)
return;
int token = currentToken() + 1;
showMessage(_("SCHEDULING TEST RESPONSE (CASE: %1, TOKEN: %2, RESPONSE: %3)")
.arg(testCase).arg(token).arg(_(response)));
m_scheduledTestResponses[token] = response;
}
void GdbEngine::requestDebugInformation(const DebugInfoTask &task)
{
QProcess::startDetached(task.command);
}
bool GdbEngine::attemptQuickStart() const
{
// Don't try if the user does not ask for it.
if (!debuggerCore()->boolSetting(AttemptQuickStart))
return false;
// Don't try if there are breakpoints we might be able to handle.
BreakHandler *handler = breakHandler();
foreach (BreakpointModelId id, handler->unclaimedBreakpointIds()) {
if (acceptsBreakpoint(id))
return false;
}
return true;
}
void GdbEngine::write(const QByteArray &data)
{
m_gdbProc->write(data);
}
bool GdbEngine::prepareCommand()
{
if (HostOsInfo::isWindowsHost()) {
DebuggerStartParameters &sp = startParameters();
QtcProcess::SplitError perr;
sp.processArgs = QtcProcess::prepareArgs(sp.processArgs, &perr,
Utils::HostOsInfo::hostOs(),
&sp.environment, &sp.workingDirectory).toWindowsArgs();
if (perr != Utils::QtcProcess::SplitOk) {
// perr == BadQuoting is never returned on Windows
// FIXME? QTCREATORBUG-2809
handleAdapterStartFailed(QCoreApplication::translate("DebuggerEngine", // Same message in CdbEngine
"Debugging complex command lines is currently not supported on Windows."), Core::Id());
return false;
}
}
return true;
}
QString GdbEngine::msgGdbStopFailed(const QString &why)
{
return tr("The gdb process could not be stopped:\n%1").arg(why);
}
QString GdbEngine::msgInferiorStopFailed(const QString &why)
{
return tr("Application process could not be stopped:\n%1").arg(why);
}
QString GdbEngine::msgInferiorSetupOk()
{
return tr("Application started");
}
QString GdbEngine::msgInferiorRunOk(){
return tr("Application running");
}
QString GdbEngine::msgAttachedToStoppedInferior()
{
return tr("Attached to stopped application");
}
QString GdbEngine::msgConnectRemoteServerFailed(const QString &why)
{
return tr("Connecting to remote server failed:\n%1").arg(why);
}
void GdbEngine::interruptLocalInferior(qint64 pid)
{
QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state(); return);
if (pid <= 0) {
showMessage(QLatin1String("TRYING TO INTERRUPT INFERIOR BEFORE PID WAS OBTAINED"), LogError);
return;
}
QString errorMessage;
if (interruptProcess(pid, GdbEngineType, &errorMessage)) {
showMessage(QLatin1String("Interrupted ") + QString::number(pid));
} else {
showMessage(errorMessage, LogError);
notifyInferiorStopFailed();
}
}
QByteArray GdbEngine::dotEscape(QByteArray str)
{
str.replace(' ', '.');
str.replace('\\', '.');
str.replace('/', '.');
return str;
}
void GdbEngine::debugLastCommand()
{
postCommand(m_lastDebuggableCommand, Discardable);
}
//
// Factory
//
DebuggerEngine *createGdbEngine(const DebuggerStartParameters &sp)
{
switch (sp.startMode) {
case AttachCore:
return new GdbCoreEngine(sp);
case StartRemoteProcess:
case AttachToRemoteServer:
return new GdbRemoteServerEngine(sp);
case AttachExternal:
return new GdbAttachEngine(sp);
default:
if (sp.useTerminal)
return new GdbTermEngine(sp);
return new GdbPlainEngine(sp);
}
}
void addGdbOptionPages(QList<Core::IOptionsPage *> *opts)
{
opts->push_back(new GdbOptionsPage());
opts->push_back(new GdbOptionsPage2());
}
void GdbEngine::updateLocalsPython(const UpdateParameters ¶ms)
{
//m_pendingWatchRequests = 0;
m_pendingBreakpointRequests = 0;
m_processedNames.clear();
WatchHandler *handler = watchHandler();
QByteArray expanded = "expanded:" + handler->expansionRequests() + ' ';
expanded += "typeformats:" + handler->typeFormatRequests() + ' ';
expanded += "formats:" + handler->individualFormatRequests();
QByteArray cutOff = " stringcutoff:"
+ debuggerCore()->action(MaximalStringLength)->value().toByteArray();
QByteArray watchers;
const QString fileName = stackHandler()->currentFrame().file;
const QString function = stackHandler()->currentFrame().function;
if (!fileName.isEmpty()) {
// Re-create tooltip items that are not filters on existing local variables in
// the tooltip model.
DebuggerToolTipContexts toolTips =
DebuggerToolTipManager::treeWidgetExpressions(fileName, objectName(), function);
const QString currentExpression = tooltipExpression();
if (!currentExpression.isEmpty()) {
int currentIndex = -1;
for (int i = 0; i < toolTips.size(); ++i) {
if (toolTips.at(i).expression == currentExpression) {
currentIndex = i;
break;
}
}
if (currentIndex < 0) {
DebuggerToolTipContext context;
context.expression = currentExpression;
context.iname = tooltipIName(currentExpression);
toolTips.push_back(context);
}
}
foreach (const DebuggerToolTipContext &p, toolTips) {
if (p.iname.startsWith("tooltip")) {
if (!watchers.isEmpty())
watchers += "##";
watchers += p.expression.toLatin1();
watchers += '#';
watchers += p.iname;
}
}
}
QHash<QByteArray, int> watcherNames = handler->watcherNames();
QHashIterator<QByteArray, int> it(watcherNames);
while (it.hasNext()) {
it.next();
if (!watchers.isEmpty())
watchers += "##";
watchers += it.key() + "#watch." + QByteArray::number(it.value());
}
const static bool alwaysVerbose = !qgetenv("QTC_DEBUGGER_PYTHON_VERBOSE").isEmpty();
QByteArray options;
if (alwaysVerbose)
options += "pe,";
if (debuggerCore()->boolSetting(UseDebuggingHelpers))
options += "fancy,";
if (debuggerCore()->boolSetting(AutoDerefPointers))
options += "autoderef,";
if (debuggerCore()->boolSetting(UseDynamicType)) options += "dyntype,";
if (options.isEmpty())
options += "defaults,";
if (params.tryPartial)
options += "partial,";
if (params.tooltipOnly)
options += "tooltiponly,";
options.chop(1);
QByteArray resultVar;
if (!m_resultVarName.isEmpty())
resultVar = "resultvarname:" + m_resultVarName + ' ';
m_lastDebuggableCommand =
"bb options:pe," + options + " vars:" + params.varList + ' '
+ expanded + " watchers:" + watchers.toHex() + cutOff;
postCommand("bb options:" + options + " vars:" + params.varList + ' '
+ resultVar + expanded + " watchers:" + watchers.toHex() + cutOff,
Discardable, CB(handleStackFramePython), QVariant(params.tryPartial));
}
void GdbEngine::handleStackFramePython(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
const bool partial = response.cookie.toBool();
QByteArray out = response.consoleStreamOutput;
while (out.endsWith(' ') || out.endsWith('\n'))
out.chop(1);
int pos = out.indexOf("data=");
if (pos != 0) {
showMessage(_("DISCARDING JUNK AT BEGIN OF RESPONSE: "
+ out.left(pos)));
out = out.mid(pos);
}
GdbMi all;
all.fromStringMultiple(out);
GdbMi data = all["data"];
GdbMi ns = all["qtnamespace"];
if (ns.isValid()) {
setQtNamespace(ns.data());
showMessage(_("FOUND NAMESPACED QT: " + ns.data()));
}
WatchHandler *handler = watchHandler();
QList<WatchData> list;
if (!partial) {
list.append(*handler->findData("local"));
list.append(*handler->findData("watch"));
list.append(*handler->findData("return"));
}
foreach (const GdbMi &child, data.children()) {
WatchData dummy;
dummy.iname = child["iname"].data();
GdbMi wname = child["wname"];
if (wname.isValid()) {
// Happens (only) for watched expressions.
dummy.name = QString::fromUtf8(QByteArray::fromHex(wname.data()));
dummy.exp = dummy.name.toUtf8();
} else {
dummy.name = _(child["name"].data());
}
parseWatchData(handler->expandedINames(), dummy, child, &list);
}
const GdbMi typeInfo = all["typeinfo"];
if (typeInfo.type() == GdbMi::List) {
foreach (const GdbMi &s, typeInfo.children()) { const GdbMi name = s["name"];
const GdbMi size = s["size"];
if (name.isValid() && size.isValid())
m_typeInfoCache.insert(QByteArray::fromHex(name.data()),
TypeInfo(size.data().toUInt()));
}
}
for (int i = 0; i != list.size(); ++i) {
const TypeInfo ti = m_typeInfoCache.value(list.at(i).type);
if (ti.size)
list[i].size = ti.size;
}
handler->insertData(list);
//PENDING_DEBUG("AFTER handleStackFrame()");
// FIXME: This should only be used when updateLocals() was
// triggered by expanding an item in the view.
//if (m_pendingWatchRequests <= 0) {
//PENDING_DEBUG("\n\n .... AND TRIGGERS MODEL UPDATE\n");
rebuildWatchModel();
//}
if (!partial)
emit stackFrameCompleted();
} else {
showMessage(_("DUMPER FAILED: " + response.toString()));
}
}
QString GdbEngine::msgPtraceError(DebuggerStartMode sm)
{
if (sm == StartInternal) {
return QCoreApplication::translate("QtDumperHelper",
"ptrace: Operation not permitted.\n\n"
"Could not attach to the process. "
"Make sure no other debugger traces this process.\n"
"Check the settings of\n"
"/proc/sys/kernel/yama/ptrace_scope\n"
"For more details, see /etc/sysctl.d/10-ptrace.conf\n");
}
return QCoreApplication::translate("QtDumperHelper",
"ptrace: Operation not permitted.\n\n"
"Could not attach to the process. "
"Make sure no other debugger traces this process.\n"
"If your uid matches the uid\n"
"of the target process, check the settings of\n"
"/proc/sys/kernel/yama/ptrace_scope\n"
"For more details, see /etc/sysctl.d/10-ptrace.conf\n");
}
} // namespace Internal
} // namespace Debugger
Q_DECLARE_METATYPE(Debugger::Internal::MemoryAgentCookie)
Q_DECLARE_METATYPE(Debugger::Internal::DisassemblerAgentCookie)
Q_DECLARE_METATYPE(Debugger::Internal::GdbMi)