[Qt-interest] Error debugging (Unable to read symbols) on OS X

[Daniel França]

I'm building in debug mode... now I tried to debug the application in
terminal instead of QtCreator and I got theses errors in sqlite plugin when
I type run (after set some break points)

Reading symbols for shared libraries unable to open symbol file:
"/Developer/Applications/Qt/plugins/sqldrivers/libqsqlite.dylib.dSYM/Contents/Resources/DWARF/libqsqlite.dylib":
can't read symbols: No more archived files.
Segmentation fault

I'm using SQLite.


On Tue, Nov 22, 2011 at 8:54 AM, <eike.ziller at nokia.com> wrote:

>
> Hi,
>
> On 18 Nov 2011, at 14:45, ext Daniel França wrote:
>
> > here's the output of otool -L
> >       libPythonQt.1.dylib (compatibility version 1.0.0, current version
> 1.0.0)
> >       QtTest.framework/Versions/4/QtTest (compatibility version 4.7.0,
> current version 4.7.4)
> >       /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
> (compatibility version 1.0.0, current version 275.0.0)
> >
> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
> (compatibility version 1.0.0, current version 38.0.0)
> >       /System/Library/Frameworks/Security.framework/Versions/A/Security
> (compatibility version 1.0.0, current version 55002.0.0)
> >       QtCore.framework/Versions/4/QtCore (compatibility version 4.7.0,
> current version 4.7.4)
> >       QtSql.framework/Versions/4/QtSql (compatibility version 4.7.0,
> current version 4.7.4)
> >       /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current
> version 7.9.0)
> >       /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current
> version 625.0.0)
> >       /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
> version 125.2.11)
>
> This looks fine if Qt is installed system-wide (e.g. in
> /Library/Frameworks). Basically if it runs, you should also be able to
> debug.
>
> >
> > 2011/11/18 Konstantin Tokarev <annulen at yandex.ru>
> > 18.11.2011, 02:32, "Daniel França" <daniel.franca at gmail.com>:
> > > Hi,
> > >
> > > I recently migrate from Qt4.6.3 to Qt4.7.4 (Installed from Qt site,
> including debug version)
> > >
> > > Everything seems to work fine.... but when I do try to debug my
> application (an Qt UT app) I got theses messages:
> > >
> > > Debugging starts
> > >
> > > Unable to read symbols for "QtTest.framework/Versions/4/QtTest" (file
> not found).
> > >
> > > Unable to read symbols from "QtTest" (not yet mapped into memory).
> > >
> > > Unable to read symbols for "QtCore.framework/Versions/4/QtCore" (file
> not found).
> > >
> > > Unable to read symbols from "QtCore" (not yet mapped into memory).
> > >
> > > Unable to read symbols for "QtSql.framework/Versions/4/QtSql" (file
> not found).
> > >
> > > Unable to read symbols from "QtSql" (not yet mapped into memory).
> > >
> > > but theses files are there under
> /Library/Frameworks/QtTest.framework/Versions/4/ (and it works when I run
> it)
> > >
> > > Any idea what it can be?
> > >
> > > I'm using Qt Creator 2.3.1 and OS X 10.6
>
> I assume that you not only get these messages, but also debugging your
> application doesn't work?
> As long as you are only debugging your own application's code and are not
> trying to debug Qt code, these messages are probably irrelevant.
> Are you sure that your application is actually compiled in debug mode?
>
> --
> Eike Ziller
> Principal Software Engineer
>
> Nokia, Qt Development Frameworks
>
> Nokia gate5 GmbH
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