Re: Segfault in libfontconfig

[Matt Dainty <matt%bodgit-n-scarper.com@localhost>]

On Tue, 2004-09-14 at 22:45, Valeriy E. Ushakov wrote:
> On Tue, Sep 14, 2004 at 22:37:10 +0400, Valeriy E. Ushakov wrote:
> 
> > > fontconfig library uses functions that return structures.  SuperH ABI
> > > uses r2 to pass the pointer to the memory for the returned structure.
> > > But dynamic linker happily blows r2 away (it's a scratch register
> > > otherwise) while doing the dynamic symbol resolution.
> > 
> > I wonder if _rtld_bind_start (libexec/ld.elf_so/arch/sh3/rtld_start.S)
> > should save/restore r2 instead of r3.
> 
> I have filed port-sh3/26949 and committed a fix for it, revision 1.4
> of libexec/ld.elf_so/arch/sh3/rtld_start.S
> 
> I will request the pull-up to 2.0, but I really NEED YOUR HELP.  I
> need someone to test this on the 2.0 branch (2.0 is at revision 1.3 of
> that file, so pulling this fix up is trivial).  The 2.0 freeze is
> already in effect, so I can't request the pull-up w/out a clean build
> + boot test on at least one sh3 platform (well, in theory all pull-ups
> should be tested like this, freeze or not :).  But I have absolutely
> no time to do that, so I'd very much appreciate if someone can do the
> test and drop me a mail.

What do I need to do? Just rebuild the whole tree again? Sadly I've not
been masochistic enough to try it on the Jornada itself, but I can have
the whole thing built in about 30 minutes or less on my i386 rig, if
that's acceptable.

> PS: The original bug should be reproducible with fc-list - which
> doesn't require a running X server.

Yup, I forgot to mention I triggered it this way too.

Matt