| Summary: | crash in KDevelop::DUContext::findLocalDeclarations | ||
|---|---|---|---|
| Product: | [Developer tools] kdevplatform | Reporter: | ZhangHuiJie <yitianbuji> |
| Component: | language | Assignee: | kdevelop-bugs-null |
| Status: | RESOLVED FIXED | ||
| Severity: | crash | CC: | simonandric5 |
| Priority: | NOR | ||
| Version: | 1.7.1 | ||
| Target Milestone: | --- | ||
| Platform: | Kubuntu | ||
| OS: | Linux | ||
| Latest Commit: | http://commits.kde.org/kdevelop/ddf0237dd589faf59478654245de88c23e01c407 | Version Fixed In: | |
| Sentry Crash Report: | |||
Could you add the code snippet which caused this crash? For reference? Git commit ddf0237dd589faf59478654245de88c23e01c407 by Milian Wolff, on behalf of Zhang HuiJie. Committed on 13/08/2015 at 15:13. Pushed by mwolff into branch '4.7'. Set maximum number of recursive calls for getMemberFunctions to 50. In some special cases of the curiously recurring template pattern [1], in my code (OpenFOAM-2.3.x), the C++ plugin will get into an endless loop and break down finally. This patch prevents it by adding a max recursion depth of 50 to getMemberFunctions. [1]: https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern, REVIEW: 124712 M +4 -3 languages/cpp/cppduchain/typeutils.cpp M +1 -1 languages/cpp/cppduchain/typeutils.h http://commits.kde.org/kdevelop/ddf0237dd589faf59478654245de88c23e01c407 |
I got this problem when try to open a c++ source file of a big project(OpenFOAM). There was nothing wrong in the big project. With many crashes when I try to open it , I am sure that it's a bug. The debug info of gdb are: #0 0x00007ffff1839dd2 in KDevelop::emptyConstantQualifiedIdentifierPrivateIndex () at /build/buildd/kdevplatform-1.7.1/language/duchain/identifier.cpp:339 #1 0x00007ffff1839ef9 in KDevelop::QualifiedIdentifier::QualifiedIdentifier (this=0x7fff194c60a0) at /build/buildd/kdevplatform-1.7.1/language/duchain/identifier.cpp:709 #2 0x00007ffff17f7811 in KDevelop::DUContext::scopeIdentifier (this=this@entry=0x7fff02c2dbc0, includeClasses=includeClasses@entry=true) at /build/buildd/kdevplatform-1.7.1/language/duchain/ducontext.cpp:1095 #3 0x00007ffff17ff968 in KDevelop::DUContext::findLocalDeclarationsInternal (this=0x7fff02c2dbc0, identifier=..., position=..., dataType=..., ret=..., flags=...) at /build/buildd/kdevplatform-1.7.1/language/duchain/ducontext.cpp:669 an the definition of KDevelop::emptyConstantQualifiedIdentifierPrivateIndex() is: static uint emptyConstantQualifiedIdentifierPrivateIndex() { static const uint index = qualifiedidentifierRepository()->index(DynamicQualifiedIdentifierPrivate()); return index; } I don't know why this function crash for my lack of concept of ducontext. Thanks for any help. Reproducible: Always Steps to Reproduce: I can reproduce this problem with the OpenFOAM and I am sure this problem can be to reproduced it with some other big projects.