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Date: Fri, 11 Sep 2015 15:05:22 -0400
From: Rich Felker <dalias@...c.org>
To: musl@...ts.openwall.com
Cc: 0pf@...mu.org
Subject: Re: [0pf] musl/SH-FDPIC progress
On Thu, Sep 10, 2015 at 09:48:50PM -0400, Rich Felker wrote:
> I now have a working prototype of static-linked FDPIC binary support
> in musl libc using gcc 5.2 (with the forward-ported SH-FDPIC patch)
> and binutils 2.25.1. I've tested simple example programs and some
> non-trivial examples with threads and they work both under qemu-sh4eb
> with FDPIC support added (needs a small patch) and on real J2
> hardware, where they successfully share text/execute-in-place.
>
> The gcc patch is presently against gcc with all the other patches from
> my musl-cross-make repo applied, so some refactoring will be needed to
> propose it upstream, but I think it's ready for initial review. After
> a little bit more cleanup (mainly bad specs logic) I'll go ahead and
> put a version of this patch in the toolchain repo.
I've posted the current version of my patches in my toolchain repo:
https://github.com/richfelker/musl-cross-make/commit/3a0c9775b69ae311d89b6a9df6788d43f206cf6c
As noted in the commit message, a patch on the musl side is needed to
get actual working binaries. I'll post a version of this (not
appropriate for upstream) soon.
Rich
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