Qt debugging problem

[diegogonzalez]

Hello everyone!

This is a question about QT debugging on a Desktop . However due the installation of poky-eglibc-x86_64-arm-toolchain-qt I have to ask in this forum.  I can run applications for  imx6sabrelite using QT on yocto, but I have some issues debugging(Qt debugging on yocto I (running on sabrelite) ).Also I can run Qt apps on my Desktop . However I can't debug on my desktop (The gdb process terminated unexpectly(code 1))

This is the log:

sStarting debugger "GdbEngine" for ABI "x86-linux-generic-elf-32bit"...

dStart parameters: 'PruebaSabreLite' mode: 1

dABI: x86-linux-generic-elf-32bit

dLanguages: c++

dExecutable: /home/dgg/Prueba qt/build-PruebaSabreLite-Desktop-Debug/PruebaSabreLite

dDirectory: /home/dgg/Prueba qt/build-PruebaSabreLite-Desktop-Debug

dDebugger: /usr/bin/gdb

dProject: /home/dgg/Prueba qt/PruebaSabreLite (built: /home/dgg/Prueba qt/build-PruebaSabreLite-Desktop-Debug)

dQML server: 127.0.0.1:3768

dRemote:

dSysroot:

dDebug Source Location:

dSymbol file:

dDumper libraries: /usr/share/qt4/qtc-debugging-helper/ /opt/qt4/qtc-debugging-helper/30324244/ /home/dgg/.local/share/data/QtProject/QtCreator/qtc-debugging-helper/30324244/

dDebugger settings:

dUseAlternatingRowColours: false (default: false)

dFontSizeFollowsEditor: false (default: false)

dUseMessageBoxForSignals: true (default: true)

dAutoQuit: false (default: false)

dLogTimeStamps: false (default: false)

dVerboseLog: false (default: false)

dCloseBuffersOnExit: false (default: false)

dSwitchModeOnExit: false (default: false)

dBreakpointsFullPath: false (default: false)

dRaiseOnInterrupt: true (default: true)

dUseDebuggingHelper: true (default: true)

dUseCodeModel: true (default: true)

dShowThreadNames: false (default: false)

dUseToolTips: false (default: false)

dUseToolTipsInLocalsView: false (default: false)

dUseToolTipsInBreakpointsView: false (default: false)

dUseAddressInBreakpointsView: false (default: false)

dUseAddressInStackView: false (default: false)

dAdditionalArguments: (default: )

dSymbolPaths: (default: )

dSourcePaths: (default: )

dBreakEvent: (default: )

dBreakOnCrtDbgReport: false (default: false)

dCDB_Console: false (default: false)

dBreakpointCorrection: true (default: true)

dIgnoreFirstChanceAccessViolation: false (default: false)

dLoadGdbInit: true (default: true)

dLoadGdbDumpers: true (default: true)

dAttemptQuickStart: false (default: false)

dGdbStartupCommands: (default: )

dGdbCustomDumperCommands: (default: )

dGdbPostAttachCommands: (default: )

dWatchdogTimeout: 20 (default: 20)

dAutoEnrichParameters: true (default: true)

dUseDynamicType: true (default: true)

dTargetAsync: false (default: false)

dWarnOnReleaseBuilds: true (default: true)

dMultiInferior: false (default: false)

dIntelFlavor: false (default: false)

dIdentifyDebugInfoPackages: false (default: false)

dMaximalStackDepth: 20 (default: 20)

dAlwaysAdjustStackColumnWidths: false (default: false)

dShowStandardNamespace: true (default: true)

dShowQtNamespace: true (default: true)

dSortStructMembers: true (default: true)

dAutoDerefPointers: true (default: true)

dAlwaysAdjustLocalsColumnWidths: false (default: false)

dMaximalStringLength: 10000 (default: 10000)

dListSourceFiles: false (default: false)

dSkipKnownFrames: false (default: false)

dEnableReverseDebugging: false (default: false)

dAllPluginBreakpoints: true (default: true)

dSelectedPluginBreakpoints: false (default: false)

dAdjustBreakpointLocations: true (default: true)

dAlwaysAdjustBreakpointsColumnWidths: false (default: false)

dNoPluginBreakpoints: false (default: false)

dSelectedPluginBreakpointsPattern: .* (default: .*)

dBreakOnThrow: false (default: false)

dBreakOnCatch: false (default: false)

dBreakOnWarning: false (default: false)

dBreakOnFatal: false (default: false)

dBreakOnAbort: false (default: false)

dAlwaysAdjustRegistersColumnWidths: false (default: false)

dAlwaysAdjustSnapshotsColumnWidths: false (default: false)

dAlwaysAdjustThreadsColumnWidths: false (default: false)

dAlwaysAdjustModulesColumnWidths: false (default: false)

dShowQmlObjectTree: true (default: true)

dQmlInspector.ShowAppOnTop: false (default: false)

dQmlInspector.FromQml: false (default: false)

dState changed from DebuggerNotReady(0) to EngineSetupRequested(1) [master]

dQUEUE: SETUP ENGINE

dCALL: SETUP ENGINE

dEXAMINING /home/dgg/Prueba qt/build-PruebaSabreLite-Desktop-Debug/PruebaSabreLite

dELF SECTIONS: .interp .note.ABI-tag .note.gnu.build-id .gnu.hash .dynsym .dynstr .gnu.version .gnu.version_r .rel.dyn .rel.plt .init .plt .text .fini .rodata .eh_frame_hdr .eh_frame .gcc_except_table .ctors .dtors .jcr .dynamic .got .got.plt .data .bss .comment .debug_aranges .debug_info .debug_abbrev .debug_line .debug_str .debug_loc .debug_ranges .shstrtab .symtab .strtab

dTRYING TO START ADAPTER

dENABLING TEST CASE: 0

dSTARTING /usr/bin/gdb -i mi --tty=/tmp/qt_temp.BN2567

dGDB STARTED, INITIALIZING IT

<489show version

<490show debug-file-directory

<491set print object on

<492set breakpoint pending on

<493set print elements 10000

<494set overload-resolution off

<495handle SIGSEGV nopass stop print

<496set unwindonsignal on

<497set width 0

<498set height 0

<499-interpreter-exec console "set remotecache on"

sSetting up inferior...

<500set substitute-path /var/tmp/qt-src /usr/include

<501-interpreter-exec console "set auto-solib-add on"

<502pwd

dUNEXPECTED GDB STDERR: Traceback (most recent call last):

d File "/opt/poky/1.4.1/sysroots/i686-pokysdk-linux/usr/lib/python2.7/site.py", line 569, in <module>

d main()

d File "/opt/poky/1.4.1/sysroots/i686-pokysdk-linux/usr/lib/python2.7/site.py", line 551, in main

d known_paths = addusersitepackages(known_paths)

d File "/opt/poky/1.4.1/sysroots/i686-pokysdk-linux/usr/lib/python2.7/site.py", line 278, in addusersitepackages

d user_site = getusersitepackages()

d File "/opt/poky/1.4.1/sysroots/i686-pokysdk-linux/usr/lib/python2.7/site.py", line 253, in getusersitepackages

d user_base = getuserbase() # this will also set USER_BASE

d File "/opt/poky/1.4.1/sysroots/i686-pokysdk-linux/usr/lib/python2.7/site.py", line 242, in getuserbase

d from sysconfig import get_config_var

d File "/opt/poky/1.4.1/sysroots/i686-pokysdk-linux/usr/lib/python2.7/sysconfig.py", line 10, in <module>

d 'stdlib': '{base}/'+sys.lib+'/python{py_version_short}',

dAttributeError: 'module' object has no attribute 'lib'

dGDB PROCESS FINISHED, status 0, code 1

dNOTE: ENGINE ILL ******

dState changed from EngineSetupRequested(1) to EngineShutdownRequested(20) [master]

dQUEUE: SHUTDOWN ENGINE

dCALL: SHUTDOWN ENGINE

dPLAIN ADAPTER SHUTDOWN 20

dINITIATE GDBENGINE SHUTDOWN IN STATE 1, PROC: 0

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.

------------------------------------------------------------------------------------------------------------------

As you can see the error seems to start  when he read the  line 10 of the  sysconfig.py. So I went to this file :

"""Provide access to Python's configuration information.

"""

import sys

import os

from os.path import pardir, realpath

_INSTALL_SCHEMES = {

'posix_prefix': {

'stdlib': '{base}/'+sys.lib+'/python{py_version_short}', -----------> line10

'platstdlib': '{platbase}/'+sys.lib+'/python{py_version_short}',

...

I don't know how to fix this problem!  Can anyone help me ?

Thank you!!

Diego

[controlhorus]

Hello

Sorry, we found another solution but forgot to send. At Qt Creator , Kit Desktop, Run Environment section, we create a new variable:

PYTHONHOME=/usr

So, when we run locally it uses the local Python.

When we run on target, it calls poky Python.

Best regards

[michaelhandford]

Hi Diego,

Did you get any further with this issue?

Unfortunately I'm currently having the same problem.

Thanks,

Mike.

[gurrampravalika]

Qt building for i.mx53 quick sort board is worked fine on the host with  qt-everywhere-opensource-src-4.7.2 on ubuntu 12.04 32 bit machine its shoing the QT demos on the host but unable to run on imx53 target board it is giving cannot run exe ,so how to run cross compile qt for imx53 please surges me

[controlhorus]

Hi

In Desktop debugging, QT is starting gdb from usr/bin. GDB must start python from /usr/bin. This 2.7.3 python does not have sys.lib.

We start manually python from /op/poky/... It has sys.lib

Looking for a way to start /usr/bingdb with /opt/poky/1.4.2... python

Thanks

[controlhorus]

Hello

We are trying yet to work with Desktop and Target without reopening QTCreator.

The problem keeps being that QT Desktop debugging try to load posix_prefix scheme and something is not well done there. QT Target debugging must use another scheme that is working (any way to know which one?)

The line from sysconfig.py at opt/poky/1.4.2 ....

'stdlib': '{base}/'+sys.lib+'/python{py_version_short}', -----------> line10

is different at Ubuntu python for this same scheme:

'stdlib': '{base}/lib/python{py_version_short}', -----------> line10

If python is 2.73 on both systems (Ubuntu and poky), does not have to be the same file in both libs?

Thanks and best regards

[controlhorus]

Hi

To do the installation we follow this steps:

Setup QT Creator with Yocto Build

To make a test we delete the line:

source /opt/poky/1.4.1/environment-setup-armv7a-vfp-neon-poky-linux-gnueabi

from qtcreator.sh. Without it, QT Debugger shows the variables and its values.

So we now have these questions:

  Is there anything wrong in /opt/poky/1.4.1/environment-setup-armv7a-vfp-neon-poky-linux-gnueabi?

  Or Is it not possible to work changing from desktop to target within QT Desktop and we have to have two separate start scripts for QT (one for desktop debugging and another for target debugging)?

Thank you