Re: Disabling -pie when linking?

[Svante Signell]

On Tue, 2013-01-29 at 12:29 +0100, Samuel Thibault wrote:
> Svante Signell, le Tue 29 Jan 2013 10:09:52 +0100, a écrit :
> > On Tue, 2013-01-29 at 07:36 +0100, Svante Signell wrote:
> > > On Tue, 2013-01-29 at 00:13 +0100, Samuel Thibault wrote:
> > > > Svante Signell, le Sun 20 Jan 2013 18:18:16 +0100, a écrit :
> > > > > A recent problem popping up is that executables using the -pie flag 
> > > > > when
> > > > > linking segfaults when starting up. Examples are mktable in w3m
> > > > 
> > > > It doesn't seem so simple. I've tried building a small program with
> > > > -pie, and it does work. I've tried to use w3m, it does work. elinks does
> > > > indeed crash.
> > 
> > No problems with mktable in w3m?
> 
> What do you mean by mktable in w3m?

When building w35-0.5.3-8 with -pie option:
./mktable 100 functable.tab > functable.c
/bin/bash: line 1:  6559 Segmentation fault      ./mktable 100
functable.tab > functable.c

When disabling -pie with 
export DEB_BUILD_MAINT_OPTIONS = hardening=+all,-pie
in debian/rules the build is OK.

> > > I know in which module elinks crashes. Disabling it makes things work
> > > again. Can this be of interest?
> > 
> > The problems with elinks is when initializing the perl_scripting_module
> > in src/scripting/scripting.c defined in src/scripting/perl/perl.c
> 
> Ok, I'd avoid trying to debug that (perl, brrr), and rather debug w3m,
> which is much more simple.

It loads a lot of stuff when initializing...