Re: [linuxdc-dev] Building a new tool chain

[Paul M. <le...@li...>]

On Sun, Jun 15, 2003 at 01:52:10PM +0100, Adrian McMenamin wrote:
> I am using gcc 3.0.4 which is broken (won't build shared in userland) and=
=20
> while gcc 3.3 is meant to support sh4 without patching, I userstand that =
it=20
> too is buggy.
>=20
3.3 and 3.4 are still both broken to some degree.. the lack of -mno-implici=
t-fp
is the primary concern. Though using -m4-nofpu and implicitly setting __SH4=
__
does work to some extent (well, and undefining __sh3__, since we're not at =
all
interested in the sh3 ABI).

I've also run into both register and stack corruption with 3.4 when using
things like __builtin_return_address().

Presumably most of these things should be fixed before the branch is frozen.

> Therefore I want to use 3.2 (assuming that works - I think it does). But =
where=20
> are the patches? Or should I be using a different version?
>=20
3.2 has been working fine for me for quite awhile. 3.2.2 is also rumored to=
 work.

I've posted the 3.2 patch at:
=09
	http://www.stampede.org/~lethal/gcc-3.2-sh.diff

Most of this is derived from the uClibc toolchain patches.

It also looks like Kojima-san has a 3.2.2 patch at:

	http://dodo.nurs.or.jp/~kkojima/gnu-on-sh/gcc-3.2.2-tmp.diff.gz

Though I have no idea how reliable it is.

Optionally, Sugioka-san has prebuilt 3.2.3 rpms at:

	http://www.sh-linux.org/rpm-index-2003/index.html

Again, I'm not sure how well these work, as I've not tested them myself.