Having trouble with Qt Creator Debugging

turigeza

debugger output
sStarting debugger "LldbEngine" for ABI "x86-macos-generic-mach_o-64bit"...
dStart parameters: 'QuickProject' mode: 1
dABI: x86-macos-generic-mach_o-64bit
dLanguages: c++
dExecutable: /Users/geza/build-QuickProject-General-Debug/QuickProject.app/Contents/MacOS/QuickProject
dDirectory: /Users/geza/build-QuickProject-General-Debug/QuickProject.app/Contents/MacOS
dDebugger: /Applications/Xcode.app/Contents/Developer/usr/bin/lldb
dProject: /Users/geza/QuickProject (built: /Users/geza/build-QuickProject-General-Debug)
dQML server: 127.0.0.1:3768
dRemote: :0
dSysroot:
dDebug Source Location:
dDebugger settings:
dStationaryEditorWhileStepping: false (default: false)
dRaiseOnInterrupt: true (default: true)
dUseCodeModel: true (default: true)
dUseDebuggingHelper: true (default: true)
dCloseBuffersOnExit: false (default: false)
dBreakpointsFullPath: false (default: false)
dSwitchModeOnExit: false (default: false)
dAutoQuit: false (default: false)
dVerboseLog: false (default: false)
dLogTimeStamps: false (default: false)
dUseAlternatingRowColours: false (default: false)
dUseMessageBoxForSignals: true (default: true)
dFontSizeFollowsEditor: false (default: false)
dSourcePaths: (default: )
dSymbolPaths: (default: )
dBreakOnCrtDbgReport: false (default: false)
dBreakEvent: (default: )
dExtraDumperFile: (default: )
dAlwaysAdjustColumnWidths: true (default: true)
dAdditionalArguments: (default: )
dGdbCustomDumperCommands: (default: )
dUseAddressInBreakpointsView: false (default: false)
dUseToolTipsInBreakpointsView: true (default: true)
dUseAddressInStackView: false (default: false)
dUseToolTips: true (default: true)
dShowThreadNames: false (default: false)
dUseToolTipsInBreakpointsView: true (default: false) ***
dUseToolTipsInLocalsView: false (default: false)
dMultiInferior: false (default: false)
dWarnOnReleaseBuilds: true (default: true)
dIdentifyDebugInfoPackages: false (default: false)
dIntelFlavor: false (default: false)
dAutoEnrichParameters: true (default: true)
dWatchdogTimeout: 20 (default: 20)
dTargetAsync: false (default: false)
dUseDynamicType: true (default: true)
dAttemptQuickStart: false (default: false)
dLoadGdbDumpers1: true (default: true)
dGdbPostAttachCommands: (default: )
dGdbStartupCommands: (default: )
dBreakpointCorrection: true (default: true)
dCDB_Console: false (default: false)
dLoadGdbInit: true (default: true)
dIgnoreFirstChanceAccessViolation: false (default: false)
dAllPluginBreakpoints: true (default: true)
dAdjustBreakpointLocations: true (default: true)
dSelectedPluginBreakpoints: false (default: false)
dListSourceFiles: false (default: false)
dDisplayStringLimit: 100 (default: 100)
dEnableReverseDebugging: false (default: false)
dSkipKnownFrames: false (default: false)
dSortStructMembers: true (default: true)
dShowQtNamespace: true (default: true)
dMaximalStringLength: 10000 (default: 10000)
dAutoDerefPointers: true (default: true)
dMaximalStackDepth: 20 (default: 20)
dShowStandardNamespace: true (default: true)
dQmlInspector.FromQml: false (default: false)
dQmlInspector.ShowAppOnTop: false (default: false)
dBreakOnFatal: false (default: false)
dBreakOnWarning: false (default: false)
dShowQmlObjectTree: true (default: true)
dBreakOnAbort: false (default: false)
dSelectedPluginBreakpointsPattern: .* (default: .*)
dNoPluginBreakpoints: false (default: false)
dBreakOnCatch: false (default: false)
dBreakOnThrow: false (default: false)
dState changed from DebuggerNotReady(0) to EngineSetupRequested(1) [master]
dQUEUE: SETUP ENGINE
dCALL: SETUP ENGINE
dSTARTING LLDB -i /Applications/Qt Creator.app/Contents/Resources/debugger/lldbbridge.py /Applications/Xcode.app/Contents/Developer/usr/bin/lldb

dLldb stdout: lldbversion="lldb-320.4.124.10"@
dstate="enginesetupok"@
dNOTE: ENGINE SETUP OK
dState changed from EngineSetupRequested(1) to EngineSetupOk(3) [master]
dQUEUE: SETUP INFERIOR
dState changed from EngineSetupOk(3) to InferiorSetupRequested(4) [master]
dQUEUE: SETUP INFERIOR
dCALL: SETUP INFERIOR
<1{"cmd":"setupInferior","executable":"/Users/geza/build-QuickProject-General-Debug/QuickProject.app/Contents/MacOS/QuickProject","breakOnMain":0,"useTerminal":0,"startMode":1,"processArgs":[],"startMode":1,"attachPid":-1,"sysRoot":"","remoteChannel":"","platform":"","token":1}

dLldb stdout: state="inferiorsetupok",msg="success",exe="/Users/geza/build-QuickProject-General-Debug/QuickProject.app/Contents/MacOS/QuickProject"@
dtoken="1"@
dNOTE: INFERIOR SETUP OK
dState changed from InferiorSetupRequested(4) to InferiorSetupOk(6) [master]
dState changed from InferiorSetupOk(6) to EngineRunRequested(7) [master]
dQUEUE: RUN ENGINE
dCALL: RUN ENGINE
sRunning requested...
<2{"cmd":"runEngine","token":2}
dLldb stdout: token="2"@

dQUIT DEBUGGER REQUESTED IN STATE 7
dNOTE: ENGINE RUN FAILED
sRun failed.
dState changed from EngineRunRequested(7) to EngineRunFailed(8) [master]
dState changed from EngineRunFailed(8) to EngineShutdownRequested(20) [master]
dQUEUE: SHUTDOWN ENGINE
dQUIT DEBUGGER REQUESTED IN STATE 20
dCALL: SHUTDOWN ENGINE
dNOTE: ENGINE SHUTDOWN OK
dState changed from EngineShutdownRequested(20) to EngineShutdownOk(22) [master]
dState changed from EngineShutdownOk(22) to DebuggerFinished(23) [master]
dQUEUE: FINISH DEBUGGER
dNOTE: FINISH DEBUGGER
dHANDLE RUNCONTROL FINISHED
sDebugger finished.
dHANDLE LLDB ERROR
dLLDB PROCESS FINISHED, status 1, code 0
dNOTE: ENGINE SPONTANEOUS SHUTDOWN
dState changed BY FORCE from DebuggerFinished(23) to EngineShutdownOk(22) [master]
dState changed from EngineShutdownOk(22) to DebuggerFinished(23) [master]
dQUEUE: FINISH DEBUGGER
dNOTE: FINISH DEBUGGER

vemod

When it hangs: open the view "Debugger Log" and click the little button "repeat last command for debug reasons".

I guess it will be fixed soon.

SGaist

Hi and welcome to devnet,

Xcode 6 has brought some modification that has break the support for lldb so you might be hit by that. Have a look at the interest mailing list thread called "LLDB hangs while being launched on Mac OS X"

It might be of use

Hope it helps

vtong

I also encountered that issue with xcode6.
Hoping Qt release a new version to fix this.

turigeza

Thank you so much ! I'll try both and let you know.

turigeza

SGaist
I can not find the exact thread you might be referring to but the following search
http://qt-project.org/search?search=LLDB+hangs
doesn't yield much help ... or shall I say solution ; )

vemod
The method you suggest gives me the following output.
<3{"cmd":"","token":3}
dLldb stdout:
d
dWARNING="**** CAUGHT EXCEPTION: MAIN LOOP ****",
d
dLldb stdout: pid="15633"@
dstate="enginerunandinferiorrunok"@
dNOTE: ENGINE RUN AND INFERIOR RUN OK
sRunning.
dState changed from EngineRunRequested(7) to InferiorRunOk(11) [master]
dLldb stdout: event={type="1",data="0x7fc502f521b0 Event: broadcaster = 0x7fc503244030 (lldb.process), type = 0x00000001 (state-changed), data = { process = 0x7fc503244000 (pid = 15633), state = running}",msg="None",flavor="Process::ProcessEventData",state="6"}@
dstate="running"@
dNOTE: INFERIOR RUN OK - REPEATED.
dLldb stdout:
d
dWARNING="Traceback (most recent call last):
d
d File '/Applications/Qt Creator.app/Contents/Resources/debugger/lldbbridge.py', line 1703, in doit
d db.execute(convertHash(json.loads(line)))
d
d File '/Applications/Qt Creator.app/Contents/Resources/debugger/lldbbridge.py', line 1664, in execute
d getattr(self, args['cmd'])(args)
d
dAttributeError: Dumper instance has no attribute ''
d",
d
dLldb stdout: event={type="4",data="0x7fc502d922d0 Event: broadcaster = 0x7fc503244030 (lldb.process), type = 0x00000004 (stdout-available), data = { process = 0x7fc503244000 (pid = 15633), state = running}",msg="None",flavor="Process::ProcessEventData",state="6"}@
doutput={channel="stdout",data="514d4c20646562756767696e6720697320656e61626c65642e204f6e6c7920757365207468697320696e2061207361666520656e7669726f6e6d656e742e0d0a"}@
QML debugging is enabled. Only use this in a safe environment.

turigeza

What do you all think ... Am I attempting the impossible here ? Shall I try uninstall xcode and install and earlier version?

vemod

"https://bugreports.qt-project.org/browse/QTCREATORBUG-13077":https://bugreports.qt-project.org/browse/QTCREATORBUG-13077

turigeza

Well done guys thank you so much !

http://permalink.gmane.org/gmane.comp.lib.qt.user/13546

freddy311082

Sorry turigeza... I have the same trouble, I had read the http://permalink.gmane.org/gmane.comp.lib.qt.user/13546. I had found the lldbbridge.py file in this address: ~/Qt5.3.2/Qt Creator.app/Contents/Resources/debugger/lldbbridge.py

the patch say this

@
--- a/share/qtcreator/debugger/lldbbridge.py
+++ b/share/qtcreator/debugger/lldbbridge.py
<at> <at> -667,8 +667,9 <at> <at> class Dumper(DumperBase):
def runEngine(self, _):

   self.prepare()
   s = threading.Thread(target=self.loop, args=[])
   s.start()

def loop(self):

def prepare(self):
error = lldb.SBError()
listener = self.debugger.GetListener()

<at> <at> -710,5 +711,7 <at> <at> class Dumper(DumperBase):
self.report('pid="%s"' % self.process.GetProcessID())
self.reportState("enginerunandinferiorrunok")

def loop(self):
event = lldb.SBEvent()

   listener = self.debugger.GetListener()
   while True:

@

but I didn't know what to do with this part:

@<at> <at> -710,5 +711,7 <at> <at> class Dumper(DumperBase):
self.report('pid="%s"' % self.process.GetProcessID())
self.reportState("enginerunandinferiorrunok")

def loop(self):
event = lldb.SBEvent()

   listener = self.debugger.GetListener()
   while True:@

I really didn't know what to do with this part... can you giveme some advice ?

I have OS X 10.9.5

best regards

Freddy

turigeza

Hi Freddy,

I have posted the wrong link sorry ... it was late last night.

The patch.
https://codereview.qt-project.org/#/c/95516/

Direct link to the new python file.
https://codereview.qt-project.org/cat/95516,2,share/qtcreator/debugger/lldbbridge.py^0

I didn't try to change the file line by line just made a backup of the original and put the new one in place.

I hope it helps.

Geza

freddy311082

Hi Geza...

I had overwrite it the original file for this one and when I try to debbug my code the console say:

@Debugging starts
Debugging has finished@

nothing happend and my program doesn't run ?

I'm using qt5.3.2

sory for ask again

turigeza

Hi,

I double checked for you. Downloaded the file from the link I gave you above (the direct download link). I went and replace my /Applications/Qt Creator.app/Contents/Resources/debugger/lldbbridge.py file and presto it works.

So it is def the file I have used. I would happily help but i am so new to this : ) I can't think of anything else ... All I can say it works for me.

Geza

freddy311082

Thank you my friend, now it's work for me

best regards

turigeza

Magic :))