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  1. Qt
  2. QTBUG-116102

[Win] If Qt is built with ASAN then end-user applications must also be built with ASAN

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 6.6
    • Build System
    • None

    Description

      I have a MSVC build of Qt with address sanitizer enabled. Upon building an application using this build of Qt with QMake I am faced with these linker errors:

      Qt6EntryPointd.lib(qtentrypoint_win.cpp.obj) : error LNK2019: unresolved external symbol __asan_report_load4 referenced in function "int __cdecl qtEntryPoint(void)" (?qtEntryPoint@@YAHXZ)
Qt6EntryPointd.lib(qtentrypoint_win.cpp.obj) : error LNK2019: unresolved external symbol __asan_report_load8 referenced in function "int __cdecl qtEntryPoint(void)" (?qtEntryPoint@@YAHXZ)
Qt6EntryPointd.lib(qtentrypoint_win.cpp.obj) : error LNK2019: unresolved external symbol __asan_report_store4 referenced in function "int __cdecl qtEntryPoint(void)" (?qtEntryPoint@@YAHXZ)
Qt6EntryPointd.lib(qtentrypoint_win.cpp.obj) : error LNK2019: unresolved external symbol __asan_report_store8 referenced in function "int __cdecl qtEntryPoint(void)" (?qtEntryPoint@@YAHXZ)
Qt6EntryPointd.lib(qtentrypoint_win.cpp.obj) : error LNK2019: unresolved external symbol __asan_set_shadow_00 referenced in function "int __cdecl qtEntryPoint(void)" (?qtEntryPoint@@YAHXZ)
Qt6EntryPointd.lib(qtentrypoint_win.cpp.obj) : error LNK2019: unresolved external symbol __asan_shadow_memory_dynamic_address referenced in function "int __cdecl qtEntryPoint(void)" (?qtEntryPoint@@YAHXZ)
VCASAND.lib(vcasan.obj) : error LNK2019: unresolved external symbol __asan_get_report_description referenced in function "void __cdecl __vcasan::ReportCallback(char const *)" (?ReportCallback@__vcasan@@YAXPEBD@Z)
VCASAND.lib(vcasan.obj) : error LNK2019: unresolved external symbol __asan_set_error_report_callback referenced in function "public: __cdecl __vcasan::VSErrorReportingInit::VSErrorReportingInit(void)" (??0VSErrorReportingInit@__vcasan@@QEAA@XZ)

      The solution is to add -fsanitize to the command line.

      QMAKE_CFLAGS   += -fsanitize=address
QMAKE_CXXFLAGS += -fsanitize=address

      But optimally the application would either inherit this, or the entry point lib would not be compiled with these symbols.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-98279 -lasan recorded in Qt6Core.prl when building Qt with address sanitizer

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Reported

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-92083 Building console project fails with linker errors

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
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              qtbuildsystem Qt Build System Team
              manordheim Mårten Nordheim
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                Created:
                Updated:

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