Try running your app under Valgrind:
http://valgrind.kde.org/http://developer.kde.org/~sewardj/valgrind-2.1.0.tar.bz2
it'll point out exactly where the seg fault is happening and
why. Remember to compile your app, and libecpg, with debugging
symbols.
L.
Jürgen Cappel writes:> Hello Michael,> > some more info: the segmentation fault still occurs under Linux (SuSE 8.0)>
withtoday's snapshot. No options used, just the filename as the only arg.> I tried it on Solaris 8 today where it
compilesfine. It works on Linux> when I change the variable name from "var" to "myvar" or add a variable in> the
DECLAREsection, but that can't be the solution. Any idea on how to> find the problem ?> > Oh, BTW: the expression
:myarray[index[10]] compiles OK as of> pgc.l version 1.125 2004/02/15 Thanks for your help !> > Jürgen> > > >
-----UrsprünglicheNachricht-----> Von: pgsql-interfaces-owner@postgresql.org>
[mailto:pgsql-interfaces-owner@postgresql.org]ImAuftrag von Michael> Meskes> Gesendet: Sonntag, 15. Februar 2004 14:42>
An:Jürgen Cappel> Cc: pgsql-interfaces> Betreff: Re: [INTERFACES] ECPG Segfault and variable usage question.> > > On
Thu,Feb 12, 2004 at 08:00:12PM +0100, Jürgen Cappel wrote:> > this is a code snippet that causes ECPG to segfault. It's
quitetricky> > I took this code as a.pgc and ran 'ecpg a.pgc' without any problem. Do> you use any special options for
ecpg?>> > Stack trace was obtained using a snapshot from about 2 weeks ago, ECPG> from> > the 7.4.1 release segfaults
also.>> Hmm, my 7.4.1 version also compiles this snippet cleanly.> > > Another problem that's giving me headaches
tryingto find a workaround for> > is the following use of variables as data sources in INSERT/UPDATE> > statements:> >>
> :myarray[index[10]]> >> > Any comments, suggestions, hints ? Thanks a lot,> > Could you please try if the
followingpatch helps you?> > --- /home/postgres/pgsql-ecpg/preproc/pgc.l 2003-12-29 14:53:04.000000000> +0100> +++
pgc.l 2004-02-15 14:38:43.000000000 +0100> @@ -183,7 +183,7 @@> > identifier {ident_start}{ident_cont}*> >
-array ({ident_cont}|{whitespace}|[\+\-\*\%\/\(\)])*> +array
({ident_cont}|{whitespace}|[\[\]\+\-\*\%\/\(\)])*> typecast "::"> > /*> > This will make it into CVS soon.> >
Michael>--> Michael Meskes> Email: Michael at Fam-Meskes dot De> ICQ: 179140304, AIM/Yahoo: michaelmeskes, Jabber:
meskes@jabber.org>Go SF 49ers! Go Rhein Fire! Use Debian GNU/Linux! Use PostgreSQL!> > ---------------------------(end
ofbroadcast)---------------------------> TIP 8: explain analyze is your friend>
