QT---cdb (Microsoft Console Debugger) debugging

Supported Debuggers

Main debugger under Windows system:

• CDB, can only debug the user program, only the console interface, to work in the command line form
• NTSD, can only debug the user program, only the console interface, to work in the command line form
• KD, mainly used for kernel debugging, sometimes also for user-state debugging, only console interface, to work in the command line form
• WINDBG, the user-state, the kernel can play the debugging function, the use of a visual user interface

Platform	Compiler	Native Debugger
Linux	Gcc/icc	GDB, LLDB (experimental)
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

In the official QT documentation, the compilers supported by Qtcreator on each platform and the corresponding debuggers are indicated. The GDB debugger is supported in the MinGW version of Qtcreator on the Windows platform. The msvc version of the qtcreator default is no debugger, you need to install and set up a good debugger (CDB).

Download and install

: https://msdn.microsoft.com/zh-cn/library/windows/hardware/ff551063

Installation is divided into online installation and offline installation, offline installation can first choose to download the installation package, and then install. Standalone installation is only available Debugging Tools for Windows .

Configuring CDB in Qtcreator

Mode one: Manual configuration

• Open Tools > Options > Debugger >CDB Paths
• In the Symbol Paths panel, selectInsert
• Select the directory where you are want to store the cached information. Use a subfolder in a temporary directory, such as C:\temp\symbolcache .
• Select OK .

Mode two: Restart Qtcreator, auto-detect, then manually select the debugger

Commissioning Practice

Can clearly see the variable value changes, can be single-step debugging, break point and so on.

Extended

QT Memory leak check:

• Linux, Mac OS x:valgrind
• Windows:visual Leak Detector for Visual C + + 2008-2015 (VLD, Open-source)

Reference

Https://wiki.qt.io/Profiling_and_Memory_Checking_Tools
Http://www.voidcn.com/blog/u011012932/article/p-6231451.html
https://msdn.microsoft.com/zh-cn/library/windows/hardware/hh406277
Https://doc.qt.io/qtcreator/creator-debugger-engines.html

http://blog.csdn.net/FreeApe/article/details/52976704

QT---cdb (Microsoft Console Debugger) debugging