Re: help: gdb and c++ strings

Murad Nayal
2002-12-06T04:23:59Z

many thanks. this will really help.

is there a packaged snapshot available somewhere or do I need to get the
sources from cvs?

best

Daniel Jacobowitz wrote:
>
> On Thu, Dec 05, 2002 at 11:02:24PM -0500, Murad Nayal wrote:
> >
> >
> > Hello,
> >
> > I am wondering if anyone here can help me with this. I am porting code
> > to linux and trying to use gdb to do the debugging. unfortunately this
> > is complicated by the fact that gdb does not print c++ string variables.
> >
> > p s
> > $1 = (
> > const basic_string<char,std::char_traits<char>,std::allocator<char>
> > > &) @0xbffff3d0: {static npos = Cannot access memory at address 0x8f4b974
> >
> > I have come upon an older post to bug-gdb list that mentions this
> > problem
> > http://sources.redhat.com/ml/bug-gdb/2000-09/msg00012.html
> >
> > in response Daniel Berlin suggested that this problem might be related
> > to the stabs format and that using dwarf-2 format (i.e. g++ -gdwarf-2)
> > would solve it. however it was mentioned back then that for large
> > programs this problem persists even when compiling with the -gdwarf-2
> > flag. this is where I am at right now. I have recompiled gdb from
> > sources (5.2.1) and recompiled most of the libraries I am using
> > (including the objects I am trying to debug) using the -gdwarf-2 flag. I
> > am on a pentium 3 platform using g++ 3.2.1, also compiled from sources.
> > I am not sure what to try next. can you help?
>
> You need to get a newer snapshot of GDB. This bug was fixed only a
> couple of weeks ago, IIRC.
>