Viadeo Twitter Google Bookmarks ! Facebook Digg del.icio.us MySpace Yahoo MyWeb Blinklist Netvouz Reddit Simpy StumbleUpon Bookmarks Windows Live Favorites 
Logo Documentation Qt ·  Page d'accueil  ·  Toutes les classes  ·  Toutes les fonctions  ·  Vues d'ensemble  · 

Setting Up Debugger

Typically, the interaction between Qt Creator and the native debugger is set up automatically and you do not need to do anything. However, you might have an unsupported gdb version installed, your Linux environment might not have gdb installed at all, or you might want to use the debugging tools for Windows.

Note: To use the debugging tools for Windows, you must install them and add the Symbol Server provided by Microsoft to the symbol search path of the debugger. For more information, see Setting the Symbol Server in Windows.

This section explains the options you have for debugging C++ code and provides installation notes for the supported native debuggers.

Supported Native Debugger Versions

The debugger plugin supports different builds of the gdb debugger, both with and without the ability to use Python scripting. The Python enabled versions are preferred, but they are not available on Mac and on older versions of Linux. On Windows, Symbian, and Maemo, only the Python version is supported.

The non-Python versions use the compiled version of the debugging helpers, that you must enable separately. For more information, see Debugging Helper Library with C++.

The Python version uses a script version of the debugging helpers that does not need any special setup.

The CDB native debugger has similar funtionality to the non-Python gdb debugger engine. Specifically, it also uses compiled C++ code for the debugging helper library.

The following table summarizes the support for debugging C++ code:

PlatformCompilerNative DebuggerPythonDebugger Modes

Linux

gcc

gdb

Optional

Term, Plain, Attach (with Python, only), Remote

Unix

gcc

gdb

Yes

Term, Plain, Attach, Remote

Mac OS

gcc

gdb

No

Term, Plain, Attach

Windows/MinGW

gcc

gdb

No

Term, Plain, Attach, Remote

Windows/MSVC

Microsoft Visual C++ Compiler

Debugging Tools for Windows/CDB

Not applicable

Term, Plain, Attach, Post-Mortem

Symbian

gcc

gdb

Yes

TRK

Maemo

gcc

gdb

Yes

Remote

Installing Native Debuggers

There are various reasons why the debugger plugin may fail to automatically pick up a suitable native debugger. The native debugger might be missing (which is usually the case for the CDB debugger on Windows which always needs to be installed manually by the user) or the installed version is not supported. Check the table below for the supported versions and other important information about installing native debuggers.

Native DebuggerNotes

Gdb

On Linux, install version 6.8, 7.0.1 (version 7.0 is not supported), 7.1, or later. On Mac OS X, install Apple gdb version 6.3.50-20050815 (build 1344) or later.

Debugging tools for Windows

Using this engine requires you to install the Debugging tools for Windows 32-bit or 64-bit package (Version 6.11.1.404 for the 32-bit or the 64-bit version of Qt Creator, respectively), which is freely available for download from the Microsoft Developer Network.

Note: Visual Studio does not include the Debugging tools needed, and therefore, you must install them separately.

The pre-built Qt SDK for Windows makes use of the library if it is present on the system. When manually building Qt Creator using the Microsoft Visual C++ Compiler, the build process checks for the required files in "%ProgramFiles%\Debugging Tools for Windows".

It is highly recommended that you add the Symbol Server provided by Microsoft to the symbol search path of the debugger. The Symbol Server provides you with debugging informaton for the operating system libraries for debugging Windows applications. For more information, see Setting the Symbol Server in Windows.

Debugging tools for Mac OS X

The Qt binary distribution contains both debug and release variants of the libraries. But you have to explicitly tell the runtime linker that you want to use the debug libraries even if your application is compiled as debug as release is the default library.

If you use a qmake based project in Qt Creator, you can set a flag in your run configuration, in Projects mode. In the run configuration, select Use debug version of frameworks.

For more detailed information about debugging on the Mac, see: http://developer.apple.com/mac/library/technotes/tn2004/tn2124.html

Note: The Mac OS X Snow Leopard (10.6) has a bug, that can be worked around as described in the link provided below: http://bugreports.qt.nokia.com/browse/QTBUG-4962.

Setting the Symbol Server in Windows

To obtain debugging information for the operating system libraries for debugging Windows applications, add the Symbol Server provided by Microsoft to the symbol search path of the debugger:

  1. Select Tools > Options... > Debugger > Cdb.
  2. In the Symbol paths field, open the Insert... menu and select Symbol Server....
  3. Select a directory where you want to store the cached information and click OK.

    Use a subfolder in a temporary directory, such as C:\temp\symbolcache.

Note: Populating the cache might take a long time on a slow network connection.

X

rc="scripts/functions.js" type="text/javascript">
Publicité

Best Of

Actualités les plus lues

Semaine
Mois
Année
  1. Microsoft ouvre aux autres compilateurs C++ AMP, la spécification pour la conception d'applications parallèles C++ utilisant le GPU 22
  2. « Quelque chose ne va vraiment pas avec les développeurs "modernes" », un développeur à "l'ancienne" critique la multiplication des bibliothèques 27
  3. Les développeurs ignorent-ils trop les failles découvertes dans leur code ? Prenez-vous en compte les remarques des autres ? 17
  4. RIM : « 13 % des développeurs ont gagné plus de 100 000 $ sur l'AppWord », Qt et open-source au menu du BlackBerry DevCon Europe 0
  5. BlackBerry 10 : premières images du prochain OS de RIM qui devrait intégrer des widgets et des tuiles inspirées de Windows Phone 0
  6. Adieu qmake, bienvenue qbs : Qt Building Suite, un outil déclaratif et extensible pour la compilation de projets Qt 17
  7. Quelles nouveautés de C++11 Visual C++ doit-il rapidement intégrer ? Donnez-nous votre avis 10
Page suivante

Le blog Digia au hasard

Logo

Déploiement d'applications Qt Commercial sur les tablettes Windows 8

Le blog Digia est l'endroit privilégié pour la communication sur l'édition commerciale de Qt, où des réponses publiques sont apportées aux questions les plus posées au support. Lire l'article.

Communauté

Ressources

Liens utiles

Contact

  • Vous souhaitez rejoindre la rédaction ou proposer un tutoriel, une traduction, une question... ? Postez dans le forum Contribuez ou contactez-nous par MP ou par email (voir en bas de page).

Qt dans le magazine

Cette page est une traduction d'une page de la documentation de Qt, écrite par Nokia Corporation and/or its subsidiary(-ies). Les éventuels problèmes résultant d'une mauvaise traduction ne sont pas imputables à Nokia. Qt qtcreator-2.0
Copyright © 2012 Developpez LLC. Tous droits réservés Developpez LLC. Aucune reproduction, même partielle, ne peut être faite de ce site et de l'ensemble de son contenu : textes, documents et images sans l'autorisation expresse de Developpez LLC. Sinon, vous encourez selon la loi jusqu'à 3 ans de prison et jusqu'à 300 000 E de dommages et intérêts. Cette page est déposée à la SACD.
Vous avez déniché une erreur ? Un bug ? Une redirection cassée ? Ou tout autre problème, quel qu'il soit ? Ou bien vous désirez participer à ce projet de traduction ? N'hésitez pas à nous contacter ou par MP !
 
 
 
 
Partenaires

Hébergement Web