View source for Loading a Qt Creator minidump crash file on Windows

For the rare cases when Qt Creator is crashing ([https://bugreports.qt.io/browse/QTCREATORBUG-29425 QTCREATORBUG-29425] for example) and producing a ''MiniDump'' dmp file, you can get the stack trace of the crash by following these steps.

== Debug Symbols ==

Make sure that you have the debug symbols (<code>*.pdb</code> files) installed from the ''MaintainanceTool''.

[[File:Qtcreator-debug-symbols.png]]


== Source Mapping ==

The debugger will have to match the source file paths used on the build machine with the local Qt Creator source checkout.

[[File:Qtcreator-source-mapping.png]]

The Qt Creator build machine source path is <code>C:\Users\qt\work\build\qt-creator</code>.

Make sure that your Qt Creator source code checkout matches the Qt Creator installation.

== LLVM MinGW's lldb.exe debugger ==

The <code>cdb.exe</code> default debugger for Visual C++ kits is not able to quickly load and display the <code>dmp</code> stack traces.

I have found that [https://lldb.llvm.org/ LLDB] from [https://github.com/mstorsjo/llvm-mingw/releases LLVM MinGW] can load the <code>dmp</code> stack traces.

[[File:Qtcreator-llvm-mingw-lldb.png]]

== Use LLDB for the Visual C++ kit ==

Now that we have <code>LLDB</code> we need to modify the ''Visual C++ Kit'' used to load Qt Creator's source code.

[[File:Qtcreator-msvc-kit-using-lldb.png]]

== Loading the MiniDump core file ==

Then under <code>Debug > Start Debugging > Load core file ...</code> you can load the <code>dmp</code> file e.g. <code>qtcreator.exe.3492.dmp</code>

[[File:Qtcreator-load-minidump-dialog.png]]

== Examining the stack trace ==

Now you will be able to see the stack trace that cause the crash:

[[File:Qtcreator-loaded-minidump.png]]