I want to check object code with two versions of libQtCore.a



  • am also making static library of Qt (qt.4.3.3) , the steps to do the same are

    I downloaded a open source of qt-all-opensource-src-4.3.3. I built static libraries using following steps. The gcc version I am using is gcc 5.2.0

    cd qt-all-opensource-src-4.3.3
    gmake conflcean
    ./configure -release -static -largefile -qt3support -qt-libpng -qt-libmng -qt-libtiff -qt-libjpeg -glib -platform linux-g++-64 -confirm-license -no-openssl -no-qdbus -prefix ./static_new -prefix-install -opengl -sm -lSM -lICE -xshape -lX11 -xinerama -lXinerama -xcursor -lXcursor -xfixes -lXfixes -xrandr -lXrandr -xrender -lXrender -fontconfig -lfontconfig -tablet -lXi -xkb -glib -lglib-2.0 -lXext -lz -lgthread-2.0
    gmake
    gmake install
    I am getting following error message

    from ../../corelib/codecs/qsimplecodec_p.h:36, from ../../corelib/codecs/qsimplecodec.cpp:22: ../../../include/QtCore/../../src/corelib/thread/qatomic.h: In instantiation of ?QAtomicPointer::QAtomicPointer(T*) [with T = QByteArray]?: ../../corelib/codecs/qsimplecodec.cpp:592:74: required from here
    ../../../include/QtCore/../../src/corelib/thread/qatomic.h:190:7: error: ?init? was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive] ../../../include/QtCore/../../src/corelib/thread/qatomic.h:190:7: note: declarations in dependent base ?QBasicAtomicPointer? are not found by unqualified lookup ../../../include/QtCore/../../src/corelib/thread/qatomic.h:190:7: note: use ?this->init? instead gmake[1]: * [.obj/release-static/qsimplecodec.o] Error 1 gmake[1]: Leaving directory `/in/inndt69/Projects/oasys/QT/QT/qt-x11-commercial-src-4.3.3/qt-x11-commercial-src-4.3.3/src/tools/rcc' gmake: * [sub-rcc-make_default-ordered] Error 2

    I did two experiments

    1. Experiment1 : compiled the Qt4.3.3 with -fpermissive flag and I got version of libQtCore.a and got succesfull build

    2. Experiment2 : corrected the code and used this-init insted of init at line 190 and build passed
      Now I have to compare the object code generated with two versions of libQtCore (from two experiments) . I tried to use following command and got successful build

    3. objdump -t /pathtoQt/experiment1/libQtCore.a | grep -i atomic

    4. objdump -t /pathtoQt/experiment2/libQtCore.a | grep -i atomic
      but I am not get any reference of QAtomicPointer in the objdumps .

    Can someone guide me how to compare the object code generated with the -fpermissive flag against the corrected code that uses { this->init(t); } in the line that causes the error.


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