Searching symbols whilst analysis is ongoing causes the UI to freeze for extended periods of time

[WeiN76LQh]

Version and Platform (required):

• Binary Ninja Version: 5.3.9208-dev Ultimate (8b909a0c)
• Edition: Ultimate
• OS: macOS
• OS Version: 26.3
• CPU Architecture: M1

Bug Description:
I entered text in the symbols view search bar during ongoing analysis, for a Mach-O binary with a large number of symbols (at least 200,000 and automatic symbol sorting had also been disabled), and this resulted in the UI freezing multiple times for 10s of seconds at a time. I didn't even need to change the text for it to freeze multiple times with responsiveness in between freezes. I also don't have the case sensitive or regex settings selected. Either way it shouldn't freeze the UI like this.

I had a debugger attached at the time and this was the call stack:

_platform_memmove (@_platform_memmove:110)
match (@match:11165)
pcre2_match_16 (@pcre2_match_16:761)
safe_pcre2_match_16(pcre2_real_code_16 const*, unsigned short const*, long long, long long, int, pcre2_real_match_data_16*, pcre2_real_match_context_16*) (@safe_pcre2_match_16(pcre2_real_code_16 const*, unsigned short const*, long long, long long, int, pcre2_real_match_data_16*, pcre2_real_match_context_16*):18)
QRegularExpressionPrivate::doMatch(QRegularExpressionMatchPrivate*, long long, QRegularExpressionPrivate::CheckSubjectStringOption, QRegularExpressionMatchPrivate const*) const (@QRegularExpressionPrivate::doMatch(QRegularExpressionMatchPrivate*, long long, QRegularExpressionPrivate::CheckSubjectStringOption, QRegularExpressionMatchPrivate const*) const:104)
QRegularExpression::match(QString const&, long long, QRegularExpression::MatchType, QFlags<QRegularExpression::MatchOption>) const (@QRegularExpression::match(QString const&, long long, QRegularExpression::MatchType, QFlags<QRegularExpression::MatchOption>) const:47)
QtPrivate::contains(QStringView, QString const*, QRegularExpression const&, QRegularExpressionMatch*) (@QtPrivate::contains(QStringView, QString const*, QRegularExpression const&, QRegularExpressionMatch*):31)
QSortFilterProxyModel::filterAcceptsRow(int, QModelIndex const&) const (@QSortFilterProxyModel::filterAcceptsRow(int, QModelIndex const&) const:310)
___lldb_unnamed_symbol16199 (@___lldb_unnamed_symbol16199:108)
QSortFilterProxyModelPrivate::filterAcceptsRowInternal(int, QModelIndex const&) const (@QSortFilterProxyModelPrivate::filterAcceptsRowInternal(int, QModelIndex const&) const:14)
QSortFilterProxyModelPrivate::handle_filter_changed(QList<int>&, QList<int>&, QModelIndex const&, QSortFilterProxyModel::Direction) (@QSortFilterProxyModelPrivate::handle_filter_changed(QList<int>&, QList<int>&, QModelIndex const&, QSortFilterProxyModel::Direction):114)
QSortFilterProxyModelPrivate::filter_changed(QFlags<QSortFilterProxyModel::Direction>, QModelIndex const&) (@QSortFilterProxyModelPrivate::filter_changed(QFlags<QSortFilterProxyModel::Direction>, QModelIndex const&):61)
QSortFilterProxyModel::endFilterChange(QFlags<QSortFilterProxyModel::Direction>) (@QSortFilterProxyModel::endFilterChange(QFlags<QSortFilterProxyModel::Direction>):17)
___lldb_unnamed_symbol16404 (@___lldb_unnamed_symbol16404:42)
void doActivate<false>(QObject*, int, void**) (@void doActivate<false>(QObject*, int, void**):354)
QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) (@QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint):19)
QSortFilterProxyModelPrivate::_q_sourceLayoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) (@QSortFilterProxyModelPrivate::_q_sourceLayoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint):139)
void doActivate<false>(QObject*, int, void**) (@void doActivate<false>(QObject*, int, void**):354)
QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) (@QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint):19)
___lldb_unnamed_symbol16400 (@___lldb_unnamed_symbol16400:411)
QObject::event(QEvent*) (@QObject::event(QEvent*):84)
QApplicationPrivate::notify_helper(QObject*, QEvent*) (@QApplicationPrivate::notify_helper(QObject*, QEvent*):87)
QApplication::notify(QObject*, QEvent*) (@QApplication::notify(QObject*, QEvent*):120)
QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (@QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*):160)
QCocoaEventDispatcherPrivate::processPostedEvents() (@QCocoaEventDispatcherPrivate::processPostedEvents():98)
QCocoaEventDispatcherPrivate::postedEventsSourceCallback(void*) (@QCocoaEventDispatcherPrivate::postedEventsSourceCallback(void*):132)
__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ (@__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__:10)
__CFRunLoopDoSource0 (@__CFRunLoopDoSource0:46)
__CFRunLoopDoSources0 (@__CFRunLoopDoSources0:61)
__CFRunLoopRun (@__CFRunLoopRun:208)
_CFRunLoopRunSpecificWithOptions (@_CFRunLoopRunSpecificWithOptions:136)
RunCurrentEventLoopInMode (@RunCurrentEventLoopInMode:82)
ReceiveNextEventCommon (@ReceiveNextEventCommon:125)
_BlockUntilNextEventMatchingListInMode (@_BlockUntilNextEventMatchingListInMode:15)
_DPSBlockUntilNextEventMatchingListInMode (@_DPSBlockUntilNextEventMatchingListInMode:62)
_DPSNextEvent (@_DPSNextEvent:150)
-[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] (@-[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]:175)
-[NSApplication(NSEventRouting) nextEventMatchingMask:untilDate:inMode:dequeue:] (@-[NSApplication(NSEventRouting) nextEventMatchingMask:untilDate:inMode:dequeue:]:21)
-[NSApplication run] (@-[NSApplication run]:95)
QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (@QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>):541)

Looks like its doing some slow regex filtering operations on the UI thread when the symbols view needs updating.

[WeiN76LQh]

I'm experiencing the same freezing after analysis has finished. Changing the search text is freezing the UI for 10s of seconds. Even toggling the regex button is doing the same, although interestingly only when it is switched off.

The call stack is similar:

_platform_memmove (@_platform_memmove:110)
match (@match:11165)
pcre2_match_16 (@pcre2_match_16:761)
safe_pcre2_match_16(pcre2_real_code_16 const*, unsigned short const*, long long, long long, int, pcre2_real_match_data_16*, pcre2_real_match_context_16*) (@safe_pcre2_match_16(pcre2_real_code_16 const*, unsigned short const*, long long, long long, int, pcre2_real_match_data_16*, pcre2_real_match_context_16*):18)
QRegularExpressionPrivate::doMatch(QRegularExpressionMatchPrivate*, long long, QRegularExpressionPrivate::CheckSubjectStringOption, QRegularExpressionMatchPrivate const*) const (@QRegularExpressionPrivate::doMatch(QRegularExpressionMatchPrivate*, long long, QRegularExpressionPrivate::CheckSubjectStringOption, QRegularExpressionMatchPrivate const*) const:104)
QRegularExpression::match(QString const&, long long, QRegularExpression::MatchType, QFlags<QRegularExpression::MatchOption>) const (@QRegularExpression::match(QString const&, long long, QRegularExpression::MatchType, QFlags<QRegularExpression::MatchOption>) const:47)
QtPrivate::contains(QStringView, QString const*, QRegularExpression const&, QRegularExpressionMatch*) (@QtPrivate::contains(QStringView, QString const*, QRegularExpression const&, QRegularExpressionMatch*):31)
QSortFilterProxyModel::filterAcceptsRow(int, QModelIndex const&) const (@QSortFilterProxyModel::filterAcceptsRow(int, QModelIndex const&) const:310)
___lldb_unnamed_symbol16199 (@___lldb_unnamed_symbol16199:108)
QSortFilterProxyModelPrivate::filterAcceptsRowInternal(int, QModelIndex const&) const (@QSortFilterProxyModelPrivate::filterAcceptsRowInternal(int, QModelIndex const&) const:14)
QSortFilterProxyModelPrivate::handle_filter_changed(QList<int>&, QList<int>&, QModelIndex const&, QSortFilterProxyModel::Direction) (@QSortFilterProxyModelPrivate::handle_filter_changed(QList<int>&, QList<int>&, QModelIndex const&, QSortFilterProxyModel::Direction):45)
QSortFilterProxyModelPrivate::filter_changed(QFlags<QSortFilterProxyModel::Direction>, QModelIndex const&) (@QSortFilterProxyModelPrivate::filter_changed(QFlags<QSortFilterProxyModel::Direction>, QModelIndex const&):61)
QSortFilterProxyModel::setFilterRegularExpression(QRegularExpression const&) (@QSortFilterProxyModel::setFilterRegularExpression(QRegularExpression const&):84)
ComponentTree::setFilter(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, QFlags<FilterOption>) (@ComponentTree::setFilter(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, QFlags<FilterOption>):419)
FilteredView::filterChanged() (@FilteredView::filterChanged():38)
void doActivate<false>(QObject*, int, void**) (@void doActivate<false>(QObject*, int, void**):354)
QTimer::timerEvent(QTimerEvent*) (@QTimer::timerEvent(QTimerEvent*):57)
QObject::event(QEvent*) (@QObject::event(QEvent*):170)
QApplicationPrivate::notify_helper(QObject*, QEvent*) (@QApplicationPrivate::notify_helper(QObject*, QEvent*):87)
QApplication::notify(QObject*, QEvent*) (@QApplication::notify(QObject*, QEvent*):120)
QCoreApplication::sendEvent(QObject*, QEvent*) (@QCoreApplication::sendEvent(QObject*, QEvent*):45)
QTimerInfoList::activateTimers() (@QTimerInfoList::activateTimers():332)
QCocoaEventDispatcherPrivate::activateTimersSourceCallback(void*) (@QCocoaEventDispatcherPrivate::activateTimersSourceCallback(void*):126)
__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ (@__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__:10)
__CFRunLoopDoSource0 (@__CFRunLoopDoSource0:46)
__CFRunLoopDoSources0 (@__CFRunLoopDoSources0:61)
__CFRunLoopRun (@__CFRunLoopRun:208)
_CFRunLoopRunSpecificWithOptions (@_CFRunLoopRunSpecificWithOptions:136)
RunCurrentEventLoopInMode (@RunCurrentEventLoopInMode:82)
ReceiveNextEventCommon (@ReceiveNextEventCommon:125)
_BlockUntilNextEventMatchingListInMode (@_BlockUntilNextEventMatchingListInMode:15)
_DPSBlockUntilNextEventMatchingListInMode (@_DPSBlockUntilNextEventMatchingListInMode:62)
_DPSNextEvent (@_DPSNextEvent:150)
-[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] (@-[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]:175)
-[NSApplication(NSEventRouting) nextEventMatchingMask:untilDate:inMode:dequeue:] (@-[NSApplication(NSEventRouting) nextEventMatchingMask:untilDate:inMode:dequeue:]:21)
-[NSApplication run] (@-[NSApplication run]:95)
QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (@QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>):541)
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (@QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>):150)
QCoreApplication::exec() (@QCoreApplication::exec():60)
___lldb_unnamed_symbol9752 (@___lldb_unnamed_symbol9752:3254)