Add a simple profiler #2
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yungyuc
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Dec 6, 2022
…tion constructor See https://doc.qt.io/qt-6/qapplication.html#QApplication . The first argument argc needs to be a type int & and the object referenced needs to be available during the whole lifetime time of QApplication. While macos and windows do not seem to crash, the Ubuntu Linux is particularly sensitive with the bug, and gets the following stacktrace: Thread 1 "viewer" received signal SIGSEGV, Segmentation fault. __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:65 65 ../sysdeps/x86_64/multiarch/strlen-avx2.S: No such file or directory. (gdb) where #0 __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:65 #1 0x00007ffff7adb3f8 in std::char_traits<char>::length(char const*) (__s=0x2 <error: Cannot access memory at address 0x2>) at /opt/rh/gcc-toolset-10/root/usr/include/c++/10/bits/char_traits.h:371 solvcon#2 QByteArrayView::lengthHelperPointer<char>(char const*) (data=0x2 <error: Cannot access memory at address 0x2>) at /home/qt/work/qt/qtbase/src/corelib/text/qbytearrayview.h:144 solvcon#3 QByteArrayView::QByteArrayView<char*, true>(char* const&) (data=@0x555555943460: 0x2 <error: Cannot access memory at address 0x2>, this=<optimized out>) at /home/qt/work/qt/qtbase/src/corelib/text/qbytearrayview.h:188 solvcon#4 QCoreApplication::arguments() () at /home/qt/work/qt/qtbase/src/corelib/kernel/qcoreapplication.cpp:2498 It is similar to https://bugreports.qt.io/browse/QTBUG-59510, in which the root cause was pointed out.
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