Re: [PATCH] kconfig: qconf: make debug links work again

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On Sun, 2020-06-28 at 23:41 +0900, Masahiro Yamada wrote:
> On Sun, Jun 28, 2020 at 9:21 PM Mauro Carvalho Chehab
> <mchehab+huawei@xxxxxxxxxx> wrote:
> > The Qt5 conversion broke support for debug info links.
> > 
> > Restore the behaviour added by changeset
> > ab45d190fd4a ("kconfig: create links in info window").
> > 
> > Reported-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
> > Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
> 
> I tested this patch, but this caused
> segmentation fault.
> 
> 
> I enabled 'Show Debug Info',
> and then clicked
> dep: <symbol name>.
> 
> Then, xconfig crashed.
> 
> (without this patch, it did not cause
> segfault at least)
> 
> Did you see this?

Works for me - tested this again 
(I have both patches applied on top on mainline master branch).
Maybe you have Qt4?

One thing that I forgot to report is that when clicking on the symbol,
only config descripion updates and not config/menu windows.
It might even be always like that, I don't remember, but it would be nice if 
these were updated too.

Best regards,
	Maxim Levitsky

> 
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> 
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> 
> 
> 
> 
> > ---
> >  scripts/kconfig/qconf.cc | 35 ++++++++++++++++++++++++++++++++++-
> >  scripts/kconfig/qconf.h  |  1 +
> >  2 files changed, 35 insertions(+), 1 deletion(-)
> > 
> > diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
> > index 631e19659504..03cadf27a376 100644
> > --- a/scripts/kconfig/qconf.cc
> > +++ b/scripts/kconfig/qconf.cc
> > @@ -1012,7 +1012,7 @@ ConfigInfoView::ConfigInfoView(QWidget* parent, const char *name)
> >         : Parent(parent), sym(0), _menu(0)
> >  {
> >         setObjectName(name);
> > -
> > +       setOpenLinks(false);
> > 
> >         if (!objectName().isEmpty()) {
> >                 configSettings->beginGroup(objectName());
> > @@ -1224,6 +1224,36 @@ void ConfigInfoView::expr_print_help(void *data, struct symbol *sym, const char
> >                 *text += str2;
> >  }
> > 
> > +void ConfigInfoView::clicked(const QUrl &url)
> > +{
> > +       QByteArray str = url.toEncoded();
> > +       const std::size_t count = str.size();
> > +       char *hex = new char[count];
> > +       unsigned long p;
> > +
> > +       if (count < 1)
> > +               return;
> > +
> > +       memcpy(hex, str.constData(), count);
> > +       p = (int)strtol(hex + 1, NULL, 16);
> > +
> > +       if (!p)
> > +               return;
> > +
> > +       if (hex[0] == 's') {
> > +               struct symbol *s = (struct symbol *)p;
> > +
> > +               sym = s;
> > +               symbolInfo();
> > +       } else {
> > +               struct menu *m = (struct menu *)p;
> > +
> > +               _menu = m;
> > +               menuInfo();
> > +       }
> > +       emit showDebugChanged(true);
> > +}
> > +
> >  QMenu* ConfigInfoView::createStandardContextMenu(const QPoint & pos)
> >  {
> >         QMenu* popup = Parent::createStandardContextMenu(pos);
> > @@ -1497,6 +1527,9 @@ ConfigMainWindow::ConfigMainWindow(void)
> >         helpMenu->addAction(showIntroAction);
> >         helpMenu->addAction(showAboutAction);
> > 
> > +       connect (helpText, SIGNAL (anchorClicked (const QUrl &)),
> > +                helpText, SLOT (clicked (const QUrl &)) );
> > +
> >         connect(configList, SIGNAL(menuChanged(struct menu *)),
> >                 helpText, SLOT(setInfo(struct menu *)));
> >         connect(configList, SIGNAL(menuSelected(struct menu *)),
> > diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h
> > index d913a02967ae..a193137f2314 100644
> > --- a/scripts/kconfig/qconf.h
> > +++ b/scripts/kconfig/qconf.h
> > @@ -250,6 +250,7 @@ public slots:
> >         void setInfo(struct menu *menu);
> >         void saveSettings(void);
> >         void setShowDebug(bool);
> > +       void clicked (const QUrl &url);
> > 
> >  signals:
> >         void showDebugChanged(bool);
> > --
> > 2.26.2
> > 
> 
> 





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