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Introduced shared library injection as dumper load method.

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Try to load custom dumpers using shared library injection
first as it is faster and does not rely on the symbol
for LoadLibrary being known to the debugger. Keep
call loading as fallback. Move the rest of the initalization
to the first dumper call, removing the need to break at main().
This commit is contained in:
Friedemann Kleint
2009-05-05 09:52:24 +02:00
parent aa6c55260f
commit eb63bebc3e
9 changed files with 864 additions and 126 deletions
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45
src/plugins/debugger/cdb/cdbdebugengine.cpp
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@@ -594,21 +594,7 @@ void CdbDebugEnginePrivate::processCreatedAttached(ULONG64 processHandle, ULONG6
// Clear any saved breakpoints and set initial breakpoints
m_engine->executeDebuggerCommand(QLatin1String("bc"));
if (m_debuggerManagerAccess->breakHandler()->hasPendingBreakpoints())
m_engine->attemptBreakpointSynchronization();
// At any event, we want a temporary breakpoint at main() to load
// the dumpers.
if (m_dumper->state() == CdbDumperHelper::NotLoaded) {
if (!hasBreakPointAtMain(m_debuggerManagerAccess->breakHandler())) {
QString errorMessage;
CDBBreakPoint mainBP;
// Do not resolve at this point in the rare event someone
// has main in a module
mainBP.funcName = QLatin1String("main");
mainBP.oneShot = true;
if (!mainBP.add(m_cif.debugControl, &errorMessage))
m_debuggerManagerAccess->showQtDumperLibraryWarning(errorMessage);
}
}
m_engine->attemptBreakpointSynchronization();
}
void CdbDebugEngine::processTerminated(unsigned long exitCode)
@@ -1356,6 +1342,12 @@ void CdbDebugEngine::slotConsoleStubTerminated()
exitDebugger();
}
void CdbDebugEnginePrivate::notifyCrashed()
{
// Cannot go over crash point to execute calls.
m_dumper->disable();
}
void CdbDebugEnginePrivate::handleDebugEvent()
{
if (debugCDB)
@@ -1367,18 +1359,9 @@ void CdbDebugEnginePrivate::handleDebugEvent()
switch (mode) {
case BreakEventHandle:
case BreakEventMain:
if (mode == BreakEventMain)
m_dumper->load(m_debuggerManager);
m_debuggerManagerAccess->notifyInferiorStopped();
updateThreadList();
updateStackTrace();
break;
case BreakEventMainLoadDumpers:
// Temp stop to load dumpers
m_dumper->load(m_debuggerManager);
m_engine->startWatchTimer();
continueInferiorProcess();
updateStackTrace();
break;
case BreakEventIgnoreOnce:
m_engine->startWatchTimer();
@@ -1492,6 +1475,7 @@ void CdbDebugEnginePrivate::handleModuleLoad(const QString &name)
{
if (debugCDB>2)
qDebug() << Q_FUNC_INFO << "\n " << name;
m_dumper->moduleLoadHook(name, m_hDebuggeeProcess);
updateModules();
}
@@ -1500,17 +1484,6 @@ void CdbDebugEnginePrivate::handleBreakpointEvent(PDEBUG_BREAKPOINT2 pBP)
Q_UNUSED(pBP)
if (debugCDB)
qDebug() << Q_FUNC_INFO;
// Did we hit main() and did the user want that or is that just
// our internal BP to load the dumpers?
QString errorMessage;
CDBBreakPoint bp;
if (bp.retrieve(pBP, &errorMessage) && !bp.funcName.isEmpty()) {
if (bp.funcName == QLatin1String("main") || bp.funcName.endsWith(QLatin1String("!main"))) {
m_breakEventMode = bp.oneShot ? BreakEventMainLoadDumpers : BreakEventMain;
}
if (debugCDB)
qDebug() << bp << " b-mode=" << m_breakEventMode;
}
}
void CdbDebugEngine::reloadSourceFiles()