| Summary: | Crash because of inheritance loop | ||
|---|---|---|---|
| Product: | [Applications] kdevelop | Reporter: | Christoph Bartoschek <bartoschek> |
| Component: | Language Support: CPP (old) | Assignee: | KDevelop Developers <kdevelop-devel> |
| Status: | RESOLVED FIXED | ||
| Severity: | crash | CC: | mattr, thasart |
| Priority: | NOR | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | Compiled Sources | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
Here is a backtrace:
#0 0x40f31ca9 in malloc (bytes=12) at malloc.c:5505
#1 0x41c63d3e in operator new(unsigned) (sz=12) at ../../../../gcc-3.4.0/libstdc++-v3/libsupc++/new_op.cc:48
#2 0x416483bd in QGArray::newData() (this=0xbf8012a0) at tools/qgarray.cpp:812
#3 0x4164700e in QGArray (this=0xbf8012a0, size=127) at tools/qgarray.cpp:142
#4 0x41639d50 in QMemArray (this=0xbf8012a0, size=127) at qmemarray.h:59
#5 0x41636e8d in QCString (this=0xbf8012a0, size=127) at tools/qcstring.cpp:679
#6 0x416a10aa in QUtf8Codec::fromUnicode(QString const&, int&) const (this=0x80a9960, uc=@0xbf8015b0, lenInOut=@0xbf80014c) at codecs/qutfcodec.cpp:53
#7 0x4169b4ce in QTextCodec::fromUnicode(QString const&) const (this=0x80a9960, uc=@0xbf8015b0) at codecs/qtextcodec.cpp:997
#8 0x416771bd in QString::local8Bit() const (this=0xbf8015b0) at tools/qstring.cpp:5838
#9 0x40df78db in kdbgstream::flush() (this=0xbf8015b0) at qmemarray.h:64
#10 0x08062ae7 in endl(kdbgstream&) (s=@0xbf8015b0) at kdebug.h:201
#11 0x42c92cc9 in CppCodeCompletion::findContainer(QString const&, KSharedPtr<NamespaceModel>, bool) (this=0x8b0c730, name=@0xbf801a60, container=
{ptr = 0x8200a08}, includeImports=false) at kdebug.h:229
#12 0x42c92c20 in CppCodeCompletion::findContainer(QString const&, KSharedPtr<NamespaceModel>, bool) (this=0x8b0c730, name=@0xbf801a60, container=
{ptr = 0x0}, includeImports=false) at qguardedptr.h:113
#13 0x42c9599a in CppCodeCompletion::computeCompletionEntryList(QValueList<KTextEditor::CompletionEntry>&, QStringList const&, bool) (this=0x8b0c730,
entryList=@0xbfffe1b0, type=@0xbf801ab0, isInstance=false) at ksharedptr.h:61
#14 0x42c96c56 in CppCodeCompletion::computeCompletionEntryList(QValueList<KTextEditor::CompletionEntry>&, KSharedPtr<ClassModel>, bool) (
this=0x8b0c730, entryList=@0xbfffe1b0, klass={ptr = 0x8c10218}, isInstance=false) at cppcodecompletion.cpp:1545
#15 0x42c959e4 in CppCodeCompletion::computeCompletionEntryList(QValueList<KTextEditor::CompletionEntry>&, QStringList const&, bool) (this=0x8b0c730,
entryList=@0xbfffe1b0, type=@0xbf801d30, isInstance=false) at ksharedptr.h:61
#16 0x42c96c56 in CppCodeCompletion::computeCompletionEntryList(QValueList<KTextEditor::CompletionEntry>&, KSharedPtr<ClassModel>, bool) (
this=0x8b0c730, entryList=@0xbfffe1b0, klass={ptr = 0x8c10218}, isInstance=false) at cppcodecompletion.cpp:1545
...
#26174 0x42c96c56 in CppCodeCompletion::computeCompletionEntryList(QValueList<KTextEditor::CompletionEntry>&, KSharedPtr<ClassModel>, bool) (
this=0x8b0c730, entryList=@0xbfffe1b0, klass={ptr = 0x8c10218}, isInstance=false) at cppcodecompletion.cpp:1545
#26175 0x42c959e4 in CppCodeCompletion::computeCompletionEntryList(QValueList<KTextEditor::CompletionEntry>&, QStringList const&, bool) (this=0x8b0c730,
entryList=@0xbfffe1b0, type=@0xbfffd930, isInstance=false) at ksharedptr.h:61
#26176 0x42c96c56 in CppCodeCompletion::computeCompletionEntryList(QValueList<KTextEditor::CompletionEntry>&, KSharedPtr<ClassModel>, bool) (
this=0x8b0c730, entryList=@0xbfffe1b0, klass={ptr = 0x8c10218}, isInstance=false) at cppcodecompletion.cpp:1545
#26177 0x42c959e4 in CppCodeCompletion::computeCompletionEntryList(QValueList<KTextEditor::CompletionEntry>&, QStringList const&, bool) (this=0x8b0c730,
entryList=@0xbfffe1b0, type=@0xbfffe180, isInstance=false) at ksharedptr.h:61
#26178 0x42c9b746 in CppCodeCompletion::completeText() (this=0x8b0c730) at cppcodecompletion.cpp:932
#26179 0x42c9dc9b in CppCodeCompletion::slotTimeout() (this=0x8b7b3c8) at cppcodecompletion.cpp:314
#26180 0x42c9df06 in CppCodeCompletion::qt_invoke(int, QUObject*) (this=0x8b0c730, _id=146256840, _o=0x8b7b3c8) at cppcodecompletion.moc:117
#26181 0x4130d192 in QObject::activate_signal(QConnectionList*, QUObject*) (this=0x8b0c680, clist=0x8b0caa8, o=0xbfffe3c0) at kernel/qobject.cpp:2356
#26182 0x4130cfed in QObject::activate_signal(int) (this=0x8b0c680, signal=2) at kernel/qobject.cpp:2325
#26183 0x416ec000 in QTimer::timeout() (this=0x8b0c680) at .moc/debug-shared-mt/moc_qtimer.cpp:82
#26184 0x4133938e in QTimer::event(QEvent*) (this=0x8b0c680, e=0xbfffe6a0) at kernel/qtimer.cpp:219
#26185 0x4129ce51 in QApplication::internalNotify(QObject*, QEvent*) (this=0xbfffea10, receiver=0x8b0c680, e=0xbfffe6a0) at kernel/qapplication.cpp:2620
#26186 0x4129c2e1 in QApplication::notify(QObject*, QEvent*) (this=0xbfffea10, receiver=0x8b0c680, e=0xbfffe6a0) at kernel/qapplication.cpp:2343
#26187 0x40de9dd2 in KApplication::notify(QObject*, QEvent*) (this=0xbfffea10, receiver=0x8b0c680, event=0xbfffe6a0) at kapplication.cpp:507
#26188 0x41224122 in QApplication::sendEvent(QObject*, QEvent*) (receiver=0x8b0c680, event=0xbfffe6a0) at qapplication.h:491
#26189 0x412886f5 in QEventLoop::activateTimers() (this=0x8169b60) at kernel/qeventloop_unix.cpp:558
#26190 0x41239366 in QEventLoop::processEvents(unsigned) (this=0x8169b60, flags=4) at kernel/qeventloop_x11.cpp:389
#26191 0x412b4ad7 in QEventLoop::enterLoop() (this=0x8169b60) at kernel/qeventloop.cpp:198
#26192 0x412b49f2 in QEventLoop::exec() (this=0x8169b60) at kernel/qeventloop.cpp:145
#26193 0x4129cfe5 in QApplication::exec() (this=0xbfffea10) at kernel/qapplication.cpp:2743
#26194 0x08062847 in main (argc=-1082125664, argv=0xbf8012a0) at main.cpp:128
#26195 0x42015704 in __libc_start_main () from /lib/tls/libc.so.6
Yay. That backtrace looks really bad. However, i could not make it happen with current cvs ( but i could not make it CC in new project at all ?!?). However this is a cpp-parser issue. *** Bug 81327 has been marked as a duplicate of this bug. *** I still get this error with kdevelop 3.1 from kde 3.3 confirmed here: from konsole kdevelop (cpp support): has namespace Murti: false kdevelop (cpp support): find class: Murti in namespace :: kdevelop (cpp support): found class: Murti kdevelop (cpp support): found class: Murti kdevelop (cpp support): -----------> findContainer name: Murti kdevelop (cpp support): -----------> findContainer name: Murti :: in a loop. kdevelop cvs HEAD 11th 09 2004 with KDE cvs HEAD Resolved in current svn! Moving all the bugs from the CPP Parser. It was not well defined the difference between it and C++ Language Support and people kept reporting in both places indistinctively |
Version: (using KDE KDE 3.2.2) Installed from: Compiled From Sources Compiler: g++ 3.4.0 OS: Linux Today I made the mistake to write a class which inherits itself. First I did not recognice the problem and tried to call a method of the class. Each time I wrote instance. kdevelop crashed, when instance was an object of my class. I think my class created a cycle in the CodeCompletition Class Store. During the search for all member methods of my class a endless loop was entered and left after stack or heap exhaustion. Here is how to reproduce the problem: 1. Start a console "Hello World" C++ Project. 2. Add a new file Header.H 3. Insert the following code into the new file: class Murti : public Murti { public: static int size(); }; 4. Save the file. 5. Go to the main file and type into the main function: int main() { Murti a; a. } After you type the dot kdevelop begins to calculate and eventually crashes. You can also write Murti:: and it crashes. I think it does not matter where you write Murti::, it will crash. kdevelop should not crash because of such an error. However it would be better if the parser recognized the error and indicated it to the programmer.