Qt creator gdb linux

Содержание

Setting Up Debugger
Supported Native Debugger Versions
Supported GDB Versions
Supported CDB Versions
Supported LLDB Versions
Installing Native Debuggers
GDB
Debugging Tools for Windows
Debugging Tools for macOS
LLDB
PDB
Adding Debuggers

Setting Up Debugger

The main debugger preferences are associated with the kit you build and run your project with. To specify the debugger and compiler to use for each kit, select Edit > Preferences > Kits. <Kits preferences data-lazy-src= »/> You need to set up the debugger only if the automatic setup fails because the native debugger is missing (for example, you must install the CDB debugger on Windows yourself) or because Qt Creator does not support the installed version. For example, when your system does not have GDB installed or the installed version is outdated, and you want to use a locally installed replacement instead. To change the debugger in an automatically detected kit, select Edit > Preferences > Kits > Clone to create a copy of the kit, and change the parameters in the cloned kit. Make sure to enable the cloned kit for your project. If the debugger you want to use is not automatically detected, select Edit > Preferences > Kits > Debuggers > Add to add it. Supported Native Debugger Versions

Qt Creator supports native debuggers for debugging compiled code. On most supported platforms, you can use the GNU Symbolic Debugger (GDB). On Microsoft Windows, when using the Microsoft tool chain, you need the Microsoft Console Debugger (CDB). On macOS and Linux, you can use the LLDB debugger. On all supported platforms, you can use PDB to debug Python source code.

Platform	Compiler	Native Debugger
Linux	GCC, ICC	GDB, LLDB
Unix	GCC, ICC	GDB
macOS	GCC, Clang	LLDB, FSF GDB (experimental)
Windows/MinGW	GCC	GDB
Windows/MSVC	Microsoft Visual C++ Compiler	Debugging Tools for Windows/CDB

Supported GDB Versions

Use GDB 7.5, or later, with the Python scripting extension and Python version 3.3, or later. For remote debugging using GDB and GDB server, the minimum supported version of GDB server on the target device is 7.0.

Supported CDB Versions

Supported LLDB Versions

The LLDB native debugger has similar functionality to the GDB debugger. LLDB is the default debugger in Xcode on macOS for C++ on the desktop. LLDB is typically used with the Clang compiler (even though you can use it with GCC, too). On macOS you can use the LLDB version delivered with Xcode or build from source. The minimum supported version is LLDB 320.4. You need a LLDB version built with Python support. On Linux, the minimum supported version is LLDB 3.8.

Installing Native Debuggers

GDB

On Windows, use the Python-enabled GDB version that is bundled with the Qt package or comes with recent versions of MinGW. On most Linux distributions, the GDB builds shipped with the system are sufficient. You can also build your own GDB, as instructed in Building GDB. Builds of GDB shipped with Xcode on macOS are no longer supported.

Debugging Tools for Windows

To use the CDB debugger, install the Debugging Tools for Windows when you install Qt Creator either by using the Qt Online Installer (in Qt > Tools > Qt Creator) or by using the stand-alone Qt Creator installation packages. The 32-bit CDB version can only debug 32-bit executables, whereas the 64-bit version can debug both 64-bit and 32-bit executables. However, interrupting a 32-bit executable with a 64-bit debugger can result in a stack trace of the WOW64 emulator 32-bit emulation layer being displayed. Qt Creator extends the command line debugger by loading the qtcreatorcdbext.dll extension library into it. The library must be available in the libs\qtcreatorcdbext64 and libs\qtcreatorcdbext32 folder. To install it there, select Qt Creator CDB Debugger Support when you install Qt Creator. 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» .

Debugging Tools for macOS

The Qt binary distribution has both debug and release variants of the libraries. However, 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 macOS, see: Mac OS X Debugging Magic.

LLDB

PDB

PDB is a source code debugger for Python applications. You can use it to debug projects that have a .pyproject configuration file. You must install Python and set the interpreter to use in Projects > Run: »/> Start debugging the main.py file. If you encounter problems, check the active build target in the kit selector. Qt Creator does not support mixed-mode debugging, but you can attach GDB to the Python interpreter to debug the C++ implementation of the corresponding Python code. For more information, see Debugging PySide with Qt Creator (Linux).

Setting up FSF GDB for macOS

To create a key for signing FSF GDB, select Keychain Access >Certificate Assistant >Create a Certificate:
1. In the Name field, input fsfgdb to replace the existing content.
2. In the Certificate Type field, select Code Signing.
3. Select the Let me override defaults check box.
4. Select Continue, and follow the instructions of the wizard (use the default settings), until the Specify a Location For The Certificate dialog opens.
5. In the Keychain field, select System.
6. Select Keychain Access >System, and locate the certificate.
7. Double click the certificate to view certificate information.
8. In the Trust section, select Always Trust in the When using this certificate field, and then close the dialog.
```
codesign -f -s "fsfgdb" $INSTALL_LOCATION/fsfgdb
```
© 2023 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.

Источник

Adding Debuggers

The Qt Creator debugger plugin acts as an interface between the Qt Creator core and external native debuggers such as the GNU Symbolic Debugger (GDB), the Microsoft Console Debugger (CDB), a QML/JavaScript debugger, and the debugger of the low level virtual machine (LLVM) project, LLDB. The debugger plugin automatically selects a suitable native debugger for each kit from the ones found on your system. To override this choice, select Edit >Preferences >Kits. For more information about setting up the debugger, see Setting Up Debugger. If you encounter problems, see Troubleshooting Debugger. To add debuggers:
1. Select Edit >Preferences >Kits >Debuggers >Add.
2. In the Name field, give a descriptive name for the debugger.
3. In the Path field, specify the path to the debugger binary:
  - For CDB (Windows only), specify the path to the Windows Console Debugger executable, cdb.exe . The 32-bit version can only debug 32-bit executables, whereas the 64-bit version can debug both 64-bit and 32-bit executables. For more information, see Debugging Tools for Windows.
  - For GDB, specify the path to the GDB executable. The executable must be built with Python scripting support enabled.
  - For LLDB (experimental), specify the path to the LLDB executable.
Qt Creator attempts to identify the type and version of the debugger and shows them in the Type and Version fields. In addition, Qt Creator shows the ABI version that will be used on embedded devices in the ABIs field.

To remove the selected manually added debugger, select Remove. The debugger disappears from the list when you select Apply. Until then, you can cancel the deletion by clicking Restore.

© 2023 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.

Источник