This is the mail archive of the
libc-alpha@sources.redhat.com
mailing list for the glibc project.
Re: PATCH: Share the dwarf2 unwind code between glibc and gcc 3.0
- To: Mark Kettenis <kettenis at science dot uva dot nl>
- Subject: Re: PATCH: Share the dwarf2 unwind code between glibc and gcc 3.0
- From: "H . J . Lu" <hjl at lucon dot org>
- Date: Mon, 9 Jul 2001 12:56:54 -0700
- Cc: Richard Henderson <rth at redhat dot com>, gcc at gcc dot gnu dot org,GNU C Library <libc-alpha at sourceware dot cygnus dot com>,gcc-patches at gcc dot gnu dot org
- References: <20010708194519.A4713@lucon.org> <20010708214953.A9465@redhat.com> <s3iith28aed.fsf@soliton.wins.uva.nl>
On Mon, Jul 09, 2001 at 04:06:18PM +0200, Mark Kettenis wrote:
>
> Changing the code such that it does find the GCC 2.x exception handler
> info is almost trivial. I implemented it, and it works fine with GCC
> 2.95.2. I already posted my code once. Attached is a slightly
> improved version. The difference between this code and the origional
> code from gcc-3_0-branch are an additional member of `struct
> _Unwind_Context' and a bit of code to fetch the GCC 2.x exception
> handler info in extract_cie_info(). The missing headers can be taken
> verbatim from the GCC 3.x sources. Of course integrating this into
> glibc would still involve a bit of work, but I'm not going to invest
> my time in it while HJ is still pushing his patch.
>
Do you have a patch for gcc? I can run several testcases on it.
> There is one thing my patch doesn't do: fixing up the binary
> compatibility problem with the RedHat GCC 2.96. HJ has a clever
> solution for the problem but it's a wee bit fragile. If it really is
> a poblem, it can be fixed later.
I think we should leave the RedHat GCC 2.96 issue to Red Hat.
H.J.