Commit 9ad447b8 authored by hjk's avatar hjk
Browse files

debugger: make gdb-6.8-symbianelf work

parent 3023495c
......@@ -26,8 +26,12 @@ def qmin(n, m):
return n
return m
def isGoodGdb():
return gdb.VERSION.startswith("6.8.50.2009") \
and gdb.VERSION != "6.8.50.20090630-cvs"
def parseAndEvaluate(exp):
if gdb.VERSION.startswith("6.8.50.2009"):
if isGoodGdb():
return gdb.parse_and_eval(exp)
# Work around non-existing gdb.parse_and_eval as in released 7.0
gdb.execute("set logging redirect on")
......@@ -41,10 +45,10 @@ def listOfLocals():
frame = gdb.selected_frame()
#warn("FRAME %s: " % frame)
except RuntimeError:
return ""
return []
items = []
if gdb.VERSION.startswith("6.8.50.2009"):
if isGoodGdb():
# archer-tromey-python
block = frame.block()
while True:
......@@ -77,9 +81,11 @@ def listOfLocals():
block = block.superblock
else:
# Assuming gdb 7.0 release.
# Assuming gdb 7.0 release or 6.8-symbianelf.
file = tempfile.mkstemp(prefix="gdbpy_")
filename = file[1]
gdb.execute("set logging off")
gdb.execute("set logging redirect off")
gdb.execute("set logging file %s" % filename)
gdb.execute("set logging redirect on")
gdb.execute("set logging on")
......
......@@ -1244,11 +1244,16 @@ void GdbEngine::handleStopResponse(const GdbMi &data)
// signal-meaning="Trace/breakpoint trap",thread-id="2",
// frame={addr="0x7c91120f",func="ntdll!DbgUiConnectToDbg",
// args=[],from="C:\\WINDOWS\\system32\\ntdll.dll"}
//if (reason == "signal-received"
// && data.findChild("signal-name").data() == "SIGTRAP") {
// continueInferiorInternal();
// return;
//}
// 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
if (reason == "signal-received"
&& data.findChild("signal-name").data() == "SIGTRAP") {
continueInferiorInternal();
return;
}
// jump over well-known frames
static int stepCounter = 0;
......
......@@ -253,6 +253,7 @@ private: ////////// Gdb Command Management //////////
CommandsDoneCallback m_commandsDoneCallback;
QList<GdbCommand> m_commandsToRunOnTemporaryBreak;
int gdbVersion() const { return m_gdbVersion; }
private: ////////// Gdb Output, State & Capability Handling //////////
......
......@@ -147,6 +147,7 @@ void Snapshot::reset()
memory.clear();
for (int i = 0; i < RegisterCount; ++i)
registers[i] = 0;
registerValid = false;
wantedMemory = MemoryRange();
}
......@@ -197,9 +198,11 @@ TrkGdbAdapter::TrkGdbAdapter(GdbEngine *engine, const TrkOptionsPtr &options) :
m_running(false),
m_trkDevice(new trk::TrkDevice),
m_gdbAckMode(true),
m_verbose(0),
m_bufferedMemoryRead(true)
m_verbose(0)
{
m_bufferedMemoryRead = false;
m_bufferedMemoryRead = true;
const QByteArray trkVerbose = qgetenv("QTC_TRK_VERBOSE");
if (!trkVerbose.isEmpty()) {
bool ok;
......@@ -210,6 +213,7 @@ TrkGdbAdapter::TrkGdbAdapter(GdbEngine *engine, const TrkOptionsPtr &options) :
m_gdbServer = 0;
m_gdbConnection = 0;
m_snapshot.reset();
#ifdef Q_OS_WIN
const DWORD portOffset = GetCurrentProcessId() % 100;
#else
......@@ -388,11 +392,11 @@ void TrkGdbAdapter::slotEmitDelayedInferiorStartFailed()
void TrkGdbAdapter::logMessage(const QString &msg)
{
if (m_verbose) {
#ifdef STANDALONE_RUNNER
emit output(msg);
#else
m_engine->debugMessage(msg);
#endif
//#ifdef STANDALONE_RUNNER
// emit output(msg);
//#else
m_engine->debugMessage("TRK LOG: " + msg);
//#endif
}
}
......@@ -629,9 +633,15 @@ void TrkGdbAdapter::handleGdbServerCommand(const QByteArray &cmd)
else if (cmd == "g") {
// Read general registers.
logMessage(msgGdbPacket(QLatin1String("Read registers")));
sendGdbServerAck();
reportRegisters();
if (m_snapshot.registerValid) {
logMessage(msgGdbPacket(QLatin1String("Read registers")));
sendGdbServerAck();
reportRegisters();
} else {
sendTrkMessage(0x12,
TrkCB(handleAndReportReadRegisters),
trkReadRegistersMessage());
}
}
else if (cmd.startsWith("Hc")) {
......@@ -692,21 +702,27 @@ void TrkGdbAdapter::handleGdbServerCommand(const QByteArray &cmd)
sendGdbServerAck();
bool ok = false;
const uint registerNumber = cmd.mid(1).toInt(&ok, 16);
QByteArray logMsg = "Read Register";
if (registerNumber == RegisterPSGdb) {
QByteArray ba;
appendInt(&ba, m_snapshot.registers[RegisterPSTrk], LittleEndian);
logMsg += dumpRegister(registerNumber, m_snapshot.registers[RegisterPSTrk]);
sendGdbServerMessage(ba.toHex(), logMsg);
} else if (registerNumber < 16) {
QByteArray ba;
appendInt(&ba, m_snapshot.registers[registerNumber], LittleEndian);
logMsg += dumpRegister(registerNumber, m_snapshot.registers[registerNumber]);
sendGdbServerMessage(ba.toHex(), logMsg);
if (m_snapshot.registerValid) {
QByteArray logMsg = "Read Register";
if (registerNumber == RegisterPSGdb) {
QByteArray ba;
appendInt(&ba, m_snapshot.registers[RegisterPSTrk], LittleEndian);
logMsg += dumpRegister(registerNumber, m_snapshot.registers[RegisterPSTrk]);
sendGdbServerMessage(ba.toHex(), logMsg);
} else if (registerNumber < 16) {
QByteArray ba;
appendInt(&ba, m_snapshot.registers[registerNumber], LittleEndian);
logMsg += dumpRegister(registerNumber, m_snapshot.registers[registerNumber]);
sendGdbServerMessage(ba.toHex(), logMsg);
} else {
sendGdbServerMessage("0000", "read single unknown register #"
+ QByteArray::number(registerNumber));
//sendGdbServerMessage("E01", "read single unknown register");
}
} else {
sendGdbServerMessage("0000", "read single unknown register #"
+ QByteArray::number(registerNumber));
//sendGdbServerMessage("E01", "read single unknown register");
sendTrkMessage(0x12,
TrkCB(handleAndReportReadRegister),
trkReadRegistersMessage(), registerNumber);
}
}
......@@ -815,18 +831,42 @@ void TrkGdbAdapter::handleGdbServerCommand(const QByteArray &cmd)
else if (cmd.startsWith("qXfer:features:read:target.xml:")) {
// $qXfer:features:read:target.xml:0,7ca#46...Ack
sendGdbServerAck();
sendGdbServerMessage("l<target><architecture>symbianelf</architecture></target>");
//sendGdbServerMessage("l<target><architecture>symbianelf</architecture></target>");
sendGdbServerMessage("l<target><architecture>arm</architecture></target>");
//sendGdbServerMessage("l<target><architecture>arm-none-symbianelf</architecture></target>");
}
else if (cmd == "qfThreadInfo") {
// That's the _first_ query package.
sendGdbServerAck();
if (!m_session.threads.isEmpty()) {
QByteArray response = "m";
// FIXME: Limit packet length by using qsThreadInfo packages?
qDebug() << "CURRENT THREAD: " << m_session.tid;
response += hexNumber(m_session.tid);
sendGdbServerMessage(response, "thread information transfered");
} else {
sendGdbServerMessage("l", "thread information transfer finished");
}
}
else if (cmd == "qsThreadInfo") {
// That's a following query package
sendGdbServerAck();
sendGdbServerMessage("l", "thread information transfer finished");
}
else if (cmd.startsWith("qXfer:libraries:read")) {
sendGdbServerAck();
/*
<library-list>
<library name="/lib/libc.so.6">
<segment address="0x10000000"/>
</library>
</library-list>
i */
QByteArray response = "l<library-list>";
for (int i = 0; i != m_session.libraries.size(); ++i) {
const Library &lib = m_session.libraries.at(i);
response += "<library name=\"" + lib.name + "\">";
response += "<segment address=\"0x" + hexNumber(lib.codeseg) + "\"/>";
response += "</library>";
}
response += "</library-list>";
sendGdbServerMessage(response, "library information transfered");
}
else if (cmd == "QStartNoAckMode") {
......@@ -855,6 +895,13 @@ i */
sendTrkMessage(0x19, TrkCB(handleStepInto), ba, "Step range");
}
else if (cmd.startsWith('T')) {
// FIXME: check whether thread is alive
sendGdbServerAck();
sendGdbServerMessage("OK"); // pretend all is well
//sendGdbServerMessage("E nn");
}
else if (cmd == "vCont?") {
// actions supported by the vCont packet
sendGdbServerAck();
......@@ -908,7 +955,7 @@ i */
}
else if (cmd.startsWith("qPart:") || cmd.startsWith("qXfer:")) {
QByteArray data = cmd.mid(1 + cmd.indexOf(':'));
QByteArray data = cmd.mid(1 + cmd.indexOf(':'));
// "qPart:auxv:read::0,147": Read OS auxiliary data (see info aux)
bool handled = false;
if (data.startsWith("auxv:read::")) {
......@@ -928,6 +975,7 @@ i */
}
}
} // auxv read
if (!handled) {
const QString msg = QLatin1String("FIXME unknown 'XFER'-request: ")
+ QString::fromAscii(cmd);
......@@ -1136,7 +1184,7 @@ void TrkGdbAdapter::handleDeleteProcess2(const TrkResult &result)
void TrkGdbAdapter::handleReadRegisters(const TrkResult &result)
{
logMessage(" RESULT: " + result.toString());
logMessage(" REGISTER RESULT: " + result.toString());
// [80 0B 00 00 00 00 00 C9 24 FF BC 00 00 00 00 00
// 60 00 00 00 00 00 00 78 67 79 70 00 00 00 00 00...]
if (result.errorCode()) {
......@@ -1146,6 +1194,7 @@ void TrkGdbAdapter::handleReadRegisters(const TrkResult &result)
const char *data = result.data.data() + 1; // Skip ok byte
for (int i = 0; i < RegisterCount; ++i)
m_snapshot.registers[i] = extractInt(data + 4 * i);
m_snapshot.registerValid = true;
}
void TrkGdbAdapter::handleWriteRegister(const TrkResult &result)
......@@ -1176,6 +1225,34 @@ void TrkGdbAdapter::reportRegisters()
sendGdbServerMessage(ba, logMsg);
}
void TrkGdbAdapter::handleAndReportReadRegisters(const TrkResult &result)
{
handleReadRegisters(result);
reportRegisters();
}
void TrkGdbAdapter::handleAndReportReadRegister(const TrkResult &result)
{
handleReadRegisters(result);
int registerNumber = result.cookie.toInt();
QByteArray logMsg = "Read Register";
if (registerNumber == RegisterPSGdb) {
QByteArray ba;
appendInt(&ba, m_snapshot.registers[RegisterPSTrk], LittleEndian);
logMsg += dumpRegister(registerNumber, m_snapshot.registers[RegisterPSTrk]);
sendGdbServerMessage(ba.toHex(), logMsg);
} else if (registerNumber < 16) {
QByteArray ba;
appendInt(&ba, m_snapshot.registers[registerNumber], LittleEndian);
logMsg += dumpRegister(registerNumber, m_snapshot.registers[registerNumber]);
sendGdbServerMessage(ba.toHex(), logMsg);
} else {
sendGdbServerMessage("0000", "read single unknown register #"
+ QByteArray::number(registerNumber));
//sendGdbServerMessage("E01", "read single unknown register");
}
}
static void appendRegister(QByteArray *ba, uint regno, uint value)
{
ba->append(hexNumber(regno, 2));
......@@ -1312,7 +1389,7 @@ void TrkGdbAdapter::tryAnswerGdbMemoryRequest(bool buffered)
logMessage(_("Requesting buffered memory %1 bytes from 0x%2")
.arg(MemoryChunkSize).arg(blockaddr, 0, 16));
MemoryRange range(blockaddr, blockaddr + MemoryChunkSize);
MEMORY_DEBUGX(" FETCH MEMORY : " << range);
MEMORY_DEBUG(" FETCH MEMORY : " << range);
sendTrkMessage(0x10, TrkCB(handleReadMemoryBuffered),
trkReadMemoryMessage(range),
QVariant::fromValue(range));
......@@ -1323,7 +1400,7 @@ void TrkGdbAdapter::tryAnswerGdbMemoryRequest(bool buffered)
sendTrkMessage(0x10, TrkCB(handleReadMemoryUnbuffered),
trkReadMemoryMessage(needed),
QVariant::fromValue(needed));
MEMORY_DEBUGX(" FETCH MEMORY : " << needed);
MEMORY_DEBUG(" FETCH MEMORY : " << needed);
}
}
......
......@@ -92,6 +92,7 @@ struct Snapshot
void insertMemory(const MemoryRange &range, const QByteArray &ba);
uint registers[RegisterCount];
bool registerValid;
typedef QMap<MemoryRange, QByteArray> Memory;
Memory memory;
......@@ -204,6 +205,8 @@ private:
void handleDeleteProcess(const TrkResult &result);
void handleDeleteProcess2(const TrkResult &result);
void handleAndReportCreateProcess(const TrkResult &result);
void handleAndReportReadRegisters(const TrkResult &result);
void handleAndReportReadRegister(const TrkResult &result);
void handleAndReportReadRegistersAfterStop(const TrkResult &result);
void reportRegisters();
QByteArray memoryReadLogMessage(uint addr, const QByteArray &ba) const;
......
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