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  1. Qt
  2. QTBUG-28784

Invalid x64 release build with -ltcg

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Details

    • Bug
    • Resolution: Out of scope
    • P3: Somewhat important
    • None
    • 5.0.0
    • Build System
    • None
    • Windows 7 64bits host, using compiler Visual C++ 2010 SP1 (16.00.40219.01)

    Description

      When giving the "-ltcg" parameter to "configure.exe", the produced x64 binaries in release mode are crashing upon startup when calling Qt5Gui.dll.

      Message got by profiling from Dependency Walker:
      DllMain(0x000007FEEFF50000, DLL_PROCESS_ATTACH, 0x000000000018F700) in
      "d:\libsrc\qt-5.0.0-x64\qtbase\bin\QT5GUI.DLL" called by thread 1.
      First chance exception 0xC000001D (Illegal Instruction) occurred in
      "d:\libsrc\qt-5.0.0-x64\qtbase\bin\QT5GUI.DLL" at address 0x000007FEF01E4FC0 by thread 1.
      Second chance exception 0xC000001D (Illegal Instruction) occurred in
      "d:\libsrc\qt-5.0.0-x64\qtbase\bin\QT5GUI.DLL" at address 0x000007FEF01E4FC0 by thread 1.

      This occures with GUI examples, designer, assistant and probably any program using Qt5Gui.dll.

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            buddenha Oswald Buddenhagen
            ybailly2 Yves Bailly
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            Dates

              Created:
              Updated:
              Resolved:

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