Does not demangle MinGW 4.8 C++ names about drmingw HOT 7 CLOSED

I think it's a bit more sutble than that.

I suspect that, the Qt*.dll binaries had their debug info stripped, and that the debug symbols aren't found, so DrMinGW is falling back to COFF symbols in the .dlls, and those symbols don't have '_' prefix...

from drmingw.

It works with the modified if condition and also works if the condition is removed and __cxa_demangle is called for all names.

from drmingw.

Could you point me to where I can download this particular QtCore4.dll so I can repro locally?

from drmingw.

This is Qt 4.8.7 MinGW edition
http://download.qt.io/official_releases/qt/4.8/4.8.7/qt-opensource-windows-x86-mingw482-4.8.7.exe

from drmingw.

Thanks.

The problem is indeed more subtle:

• QtCore4.dll doesn't have DWARF debug info, so symbols are being resolved by the DLL export table
• DrMingw uses SYMOPT_UNDNAME option, so DbgHelp will try to demangle the exported symbol, stripping out the underscore
• So by the time it reaches MgwUnDecorateSymbolName the underscore prefix is already gone

I pushed a bunch of fixes to this. It should work well now.

from drmingw.

Thank you very much. This is essential fix for all Qt apps. Will you release version 0.7.6 with this change now?

from drmingw.

Will you release version 0.7.6 with this change now?

Done.

from drmingw.