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Some work towards functioning remote debugging

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Fix gdb commands, state changes and signals emissions.
- There were some invalid gdb commands (e.g. "attach").
- There also were a number of unexplected state transitions.
This commit is contained in:
ck
2009-10-01 17:13:27 +02:00
committed by hjk
parent dbc042ff04
commit 3b12f5f1d6
2 changed files with 37 additions and 41 deletions
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74
src/plugins/debugger/gdb/remotegdbadapter.cpp
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@@ -86,12 +86,12 @@ void RemoteGdbAdapter::startAdapter()
gdbArgs.prepend(_("mi"));
gdbArgs.prepend(_("-i"));
if (!m_engine->m_outputCollector.listen()) {
emit adapterStartFailed(tr("Cannot set up communication with child process: %1")
.arg(m_engine->m_outputCollector.errorString()));
return;
}
gdbArgs.prepend(_("--tty=") + m_engine->m_outputCollector.serverName());
// if (!m_engine->m_outputCollector.listen()) {
// emit adapterStartFailed(tr("Cannot set up communication with child process: %1")
// .arg(m_engine->m_outputCollector.errorString()));
// return;
// }
// gdbArgs.prepend(_("--tty=") + m_engine->m_outputCollector.serverName());
if (!startParameters().workingDir.isEmpty())
setWorkingDirectory(startParameters().workingDir);
@@ -193,20 +193,23 @@ void RemoteGdbAdapter::prepareInferior()
m_engine->postCommand(_("-exec-arguments ")
+ startParameters().processArgs.join(_(" ")));
//qq->breakHandler()->setAllPending();
QFileInfo fi(startParameters().executable);
QString fileName = fi.absoluteFilePath();
m_engine->postCommand(_("-file-exec-and-symbols \"%1\"").arg(fileName),
CB(handleFileExecAndSymbols));
m_engine->postCommand(_("set target-async on"), CB(handleSetTargetAsync));
}
// works only for > 6.8
//postCommand(_("set target-async on"), CB(handleSetTargetAsync));
// a typical response on "old" gdb is:
// &"set target-async on\n"
//&"No symbol table is loaded. Use the \"file\" command.\n"
//^error,msg="No symbol table is loaded. Use the \"file\" command."
//postCommand(_("detach"));
//emit inferiorPreparationFailed(msg);
void RemoteGdbAdapter::handleSetTargetAsync(const GdbResponse &response)
{
QTC_ASSERT(state() == InferiorPreparing, qDebug() << state());
if (response.resultClass == GdbResultDone) {
//qq->breakHandler()->setAllPending();
QFileInfo fi(startParameters().executable);
QString fileName = fi.absoluteFilePath();
m_engine->postCommand(_("-file-exec-and-symbols \"%1\"").arg(fileName),
CB(handleFileExecAndSymbols));
} else if (response.resultClass == GdbResultError) {
QString msg = tr("Adapter too old: does not support asynchronous mode.");
setState(InferiorPreparationFailed);
emit inferiorPreparationFailed(msg);
}
}
void RemoteGdbAdapter::handleFileExecAndSymbols(const GdbResponse &response)
@@ -214,9 +217,8 @@ void RemoteGdbAdapter::handleFileExecAndSymbols(const GdbResponse &response)
QTC_ASSERT(state() == InferiorPreparing, qDebug() << state());
if (response.resultClass == GdbResultDone) {
//m_breakHandler->clearBreakMarkers();
QString channel = startParameters().remoteChannel;
m_engine->postCommand(_("target remote %1").arg(channel),
CB(handleTargetRemote));
m_engine->setState(InferiorPrepared);
emit inferiorPrepared();
} else if (response.resultClass == GdbResultError) {
QString msg = tr("Starting remote executable failed:\n");
msg += __(response.data.findChild("msg").data());
@@ -227,10 +229,11 @@ void RemoteGdbAdapter::handleFileExecAndSymbols(const GdbResponse &response)
void RemoteGdbAdapter::handleTargetRemote(const GdbResponse &record)
{
QTC_ASSERT(state() == InferiorPreparing, qDebug() << state());
QTC_ASSERT(state() == InferiorStarting, qDebug() << state());
if (record.resultClass == GdbResultDone) {
setState(InferiorPrepared);
emit inferiorPrepared();
// gdb server will stop the remote application itself.
debugMessage(_("INFERIOR STARTED"));
showStatusMessage(tr("Attached to stopped inferior."));
} else if (record.resultClass == GdbResultError) {
// 16^error,msg="hd:5555: Connection timed out."
QString msg = tr("Connecting to remote server failed:\n");
@@ -243,21 +246,14 @@ void RemoteGdbAdapter::handleTargetRemote(const GdbResponse &record)
void RemoteGdbAdapter::startInferior()
{
QTC_ASSERT(state() == InferiorStarting, qDebug() << state());
m_engine->postCommand(_("attach"), CB(handleFirstContinue));
}
QString channel = startParameters().remoteChannel;
void RemoteGdbAdapter::handleFirstContinue(const GdbResponse &record)
{
QTC_ASSERT(state() == InferiorRunningRequested, qDebug() << state());
if (record.resultClass == GdbResultDone) {
setState(InferiorStopped);
debugMessage(_("INFERIOR STARTED"));
showStatusMessage(tr("Attached to stopped inferior."));
} else if (record.resultClass == GdbResultError) {
//QString msg = __(record.data.findChild("msg").data());
QString msg1 = tr("Connecting to remote server failed:\n");
emit inferiorStartFailed(msg1 + record.toString());
}
// "target remote" does three things:
// (1) connects to the gdb server
// (2) starts the remote application
// (3) stops the remote application (early, e.g. in the dynamic linker)
m_engine->postCommand(_("target remote %1").arg(channel),
CB(handleTargetRemote));
}
void RemoteGdbAdapter::interruptInferior()