SIGSEGV when adding a write_io watchpoint #129
Description
When trying to add a new watchpoint in the Debug list window, a SEGSEGV happens:
Thread 1 "openmsx-debugge" received signal SIGSEGV, Segmentation fault.
0x000055555559ecc5 in QTableWidgetItem::setText (this=0x0, atext=...) at /usr/include/x86_64-linux-gnu/qt5/QtWidgets/qtablewidget.h:200
200 { setData(Qt::DisplayRole, atext); }
(gdb) print this
$3 = (QTableWidgetItem * const) 0x0
To reproduce this, I have three breakpoints, and no Watchpoints or Conditions.
I go to the Watchpoints tab, click on "Add", choose "write_io", and it crashes.
Backtrace:
(gdb) bt
#0 0x000055555559ecc5 in QTableWidgetItem::setText(QString const&)
(this=0x0, atext=...)
at /usr/include/x86_64-linux-gnu/qt5/QtWidgets/qtablewidget.h:200
#1 0x00005555555979c9 in BreakpointViewer::setTextField(BreakpointRef::Type, int, int, QString const&, QString const&)
(this=0x5555559f99d0, type=BreakpointRef::WATCHPOINT, row=0, column=7, value=..., tooltip=...) at src/BreakpointViewer.cpp:269
#2 0x0000555555598c35 in BreakpointViewer::changeTableItem(BreakpointRef::Type, QTableWidgetItem*)
(this=0x5555559f99d0, type=BreakpointRef::WATCHPOINT, item=0x555555bc7ff0)
at src/BreakpointViewer.cpp:412
#3 0x000055555559a3b7 in BreakpointViewer::changeCurrentWpType(int, int)
(this=0x5555559f99d0, row=0) at src/BreakpointViewer.cpp:675
#4 0x000055555559a3e6 in operator()(int) const
(__closure=0x7fffec00b990, index=3) at src/BreakpointViewer.cpp:692
#5 0x000055555559e629 in QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List, void, BreakpointViewer::createComboBox(int)::<lambda(int)> >::call(struct {...} &, void **) (f=..., arg=0x7ffffffece60)