我正在尝试创建共享库(使用 CMake),它在内部使用 Qt 对象(特别是 QString 和 QQueue)并将该库与其他应用程序一起使用。问题是应用程序在调用 QQueue 的方法时收到 SIGSEGV:
(gdb) r
Starting program: /home/ilya/projects/qtLogger/build/qtLoggerSample
[Thread debugging using libthread_db enabled]
startup
_DEBUG
QtLogger::QtLogger()
void QtLogger::foo(void*)
void QtLogger::log(QtLogger::LOG_LEVEL, QString) lvl: DEBUGmsg: "debug 1"
Program received signal SIGSEGV, Segmentation fault.
0x08049450 in QString (this=0x2817ad9c, other=...) at /usr/include/qt4/QtCore/qstring.h:714
714 inline QString::QString(const QString &other) : d(other.d)
(gdb) bt
#0 0x08049450 in QString (this=0x2817ad9c, other=...) at /usr/include/qt4/QtCore/qstring.h:714
#1 0xb7fdda0c in QList<QString>::node_construct (this=0x804b474, n=0x2817ad9c, t=...) at /usr/include/qt4/QtCore/qlist.h:352
#2 0xb7fdd7fa in QList<QString>::append (this=0x804b474, t=...) at /usr/include/qt4/QtCore/qlist.h:481
#3 0xb7fdd5e0 in QQueue<QString>::enqueue (this=0x804b474, t=...) at /usr/include/qt4/QtCore/qqueue.h:59
#4 0xb7fdd19f in QtLogger::log (this=0x804b460, level=QtLogger::LL_DEBUG, message=...)
at /home/ilya/projects/qtLogger/lib-qtLogger/src/libqtlogger.cpp:97
#5 0x08049099 in main (argc=1, argv=0xbffff644) at /home/ilya/projects/qtLogger/src/main.cpp:27
应用程序的源代码可以在这里找到:https ://github.com/ilardm/qtLoggerSample/tree/137adee556f41eb4526e1d1c604e8541ef6eb65a
库的源代码可以在这里找到(也可以作为应用程序存储库的 git 子模块提供):https ://github.com/ilardm/lib-qtLogger/tree/bf1b490fd7c6666176c23e6fd791c00937d954b4
你能帮我理解我错在哪里吗?
PS 我正在使用 Qt 4.6.3、Debian Squeeze x86 和 x64、gcc 4.4.5