https://bugs.kde.org/show_bug.cgi?id=378294
Bug ID: 378294
Summary: 100% Reproducible crash via static_assert()
Product: kdevelop
Version: 5.0.3
Platform: Appimage
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: Language Support: CPP (Clang-based)
Assignee: kdevelop-bugs-n...@kde.org
Reporter: fileoff...@gmail.com
Target Milestone: ---
When my KDevelop started crashing every time I opened my project up, I was
pretty upset. I attached GDB and got a stack trace, and was surprised to see it
was due to libclang trying to parse a static_assert().
Here is the stacktrace:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f01aa399700 (LWP 30610)]
0x00007f015ce19b5a in clang::cxcursor::MakeCXCursor(clang::Stmt const*,
clang::Decl const*, CXTranslationUnitImpl*, clang::SourceRange) () from
/tmp/.mount_H1Q0rg/usr/lib/libclang.so.3.9
(gdb) bt
#0 0x00007f015ce19b5a in clang::cxcursor::MakeCXCursor(clang::Stmt const*,
clang::Decl const*, CXTranslationUnitImpl*, clang::SourceRange) () from
/tmp/.mount_H1Q0rg/usr/lib/libclang.so.3.9
#1 0x00007f015ce08f32 in
clang::cxcursor::CursorVisitor::VisitStaticAssertDecl(clang::StaticAssertDecl*)
()
from /tmp/.mount_H1Q0rg/usr/lib/libclang.so.3.9
#2 0x00007f015ce01943 in
clang::cxcursor::CursorVisitor::VisitChildren(CXCursor) ()
from /tmp/.mount_H1Q0rg/usr/lib/libclang.so.3.9
#3 0x00007f015ce01dfd in clang::cxcursor::CursorVisitor::Visit(CXCursor, bool)
()
from /tmp/.mount_H1Q0rg/usr/lib/libclang.so.3.9
#4 0x00007f015ce0587d in
clang::cxcursor::CursorVisitor::handleDeclForVisitation(clang::Decl const*) ()
from /tmp/.mount_H1Q0rg/usr/lib/libclang.so.3.9
#5 0x00007f015ce05998 in
clang::cxcursor::CursorVisitor::VisitDeclContext(clang::DeclContext*) ()
from /tmp/.mount_H1Q0rg/usr/lib/libclang.so.3.9
#6 0x00007f015ce01b1b in
clang::cxcursor::CursorVisitor::VisitChildren(CXCursor) ()
from /tmp/.mount_H1Q0rg/usr/lib/libclang.so.3.9
#7 0x00007f015ce0a2b1 in clang_visitChildren () from
/tmp/.mount_H1Q0rg/usr/lib/libclang.so.3.9
#8 0x00007f017c35a232 in Builder::visit(CXTranslationUnitImpl*, void*,
QHash<void*, KDevelop::ReferencedTopDUContext> const&, bool) () from
/tmp/.mount_H1Q0rg/usr/lib/libKDevClangPrivate.so.25
#9 0x00007f017c38b3ac in ClangHelpers::buildDUChain(void*, QMultiHash<void*,
Import> const&, ParseSession const&, KDevelop::TopDUContext::Features,
QHash<void*, KDevelop::ReferencedTopDUContext>&, ClangIndex*,
std::function<bool ()> const&)
() from /tmp/.mount_H1Q0rg/usr/lib/libKDevClangPrivate.so.25
#10 0x00007f017c5eacf2 in
ClangParseJob::run(QSharedPointer<ThreadWeaver::JobInterface>,
ThreadWeaver::Thread*) ()
from
/tmp/.mount_H1Q0rg/usr/lib/qt5/plugins/kdevplatform/25/kdevclangsupport.so
#11 0x00007f01d9146282 in
ThreadWeaver::IdDecorator::run(QSharedPointer<ThreadWeaver::JobInterface>,
ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f01d9146bfe in
ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&,
ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#13 0x00007f01d9145e7b in
ThreadWeaver::Private::DefaultExecutor::execute(QSharedPointer<ThreadWeaver::JobInterface>
const&, ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#14 0x00007f01d9146dbb in
ThreadWeaver::ExecuteWrapper::executeWrapped(QSharedPointer<ThreadWeaver::JobInterface>
const&, ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#15 0x00007f01d9145e1f in
ThreadWeaver::Private::DebugExecuteWrapper::execute(QSharedPointer<ThreadWeaver::JobInterface>
const&, ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#16 0x00007f01d9146dbb in
ThreadWeaver::ExecuteWrapper::executeWrapped(QSharedPointer<ThreadWeaver::JobInterface>
const&, ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#17 0x00007f01d9146d71 in
ThreadWeaver::ExecuteWrapper::execute(QSharedPointer<ThreadWeaver::JobInterface>
const&, ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#18 0x00007f01d9146dbb in
ThreadWeaver::ExecuteWrapper::executeWrapped(QSharedPointer<ThreadWeaver::JobInterface>
const&, ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#19 0x00007f01d9146d71 in
ThreadWeaver::ExecuteWrapper::execute(QSharedPointer<ThreadWeaver::JobInterface>
const&, ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#20 0x00007f01d9144ab7 in
ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&,
ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#21 0x00007f01d91486ed in
ThreadWeaver::Collection::execute(QSharedPointer<ThreadWeaver::JobInterface>
const&, ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#22 0x00007f01d914664b in
ThreadWeaver::IdDecorator::execute(QSharedPointer<ThreadWeaver::JobInterface>
const&, ThreadWeaver::Thread*) () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#23 0x00007f01d91443b1 in ThreadWeaver::Thread::run() () from
/tmp/.mount_H1Q0rg/usr/lib/libKF5ThreadWeaver.so.5
#24 0x00007f01daf677f6 in ?? () from /tmp/.mount_H1Q0rg/usr/lib/libQt5Core.so.5
#25 0x00007f01d3416dc5 in start_thread () from /lib64/libpthread.so.0
#26 0x00007f01da3d173d in clone () from /lib64/libc.so.6
I found the offending static_assert and commented it out. This fixed the crash.
The static_assert was something I added to check a global variable in a
library, it was:
static_assert(lcb_version_g >= 0x020506 && "This example requires 2.5.6 or
greater");
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