* Removing SH-5 support
@ 2016-04-28 20:37 Rich Felker
2016-04-29 4:57 ` Rob Landley
0 siblings, 1 reply; 2+ messages in thread
From: Rich Felker @ 2016-04-28 20:37 UTC (permalink / raw)
To: linux-sh
GCC's sh target maintainers have finally removed support for SH-5 from
trunk:
https://gcc.gnu.org/viewcvs/gcc?limit_changes=0&view=revision&revision#5544
It's probably been broken for a long time, and the associated clutter
was hindering development progress on SH-2/3/4 targets which are
actually supported.
In light of this change, which leaves us with no future toolchain
support for SH-5, and the lack of any interest in SH-5 from users or
developers, I'd like to remove SH-5 support from the kernel too. This
should streamline the existing code and make it easier to modernize
the arch/sh tree.
Any objections?
Rich
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Removing SH-5 support
2016-04-28 20:37 Removing SH-5 support Rich Felker
@ 2016-04-29 4:57 ` Rob Landley
0 siblings, 0 replies; 2+ messages in thread
From: Rob Landley @ 2016-04-29 4:57 UTC (permalink / raw)
To: linux-sh
On 04/28/2016 03:37 PM, Rich Felker wrote:
> GCC's sh target maintainers have finally removed support for SH-5 from
> trunk:
>
> https://gcc.gnu.org/viewcvs/gcc?limit_changes=0&view=revision&revision#5544
>
> It's probably been broken for a long time, and the associated clutter
> was hindering development progress on SH-2/3/4 targets which are
> actually supported.
>
> In light of this change, which leaves us with no future toolchain
> support for SH-5, and the lack of any interest in SH-5 from users or
> developers, I'd like to remove SH-5 support from the kernel too. This
> should streamline the existing code and make it easier to modernize
> the arch/sh tree.
>
> Any objections?
SH5 attempted to introduce a new instruction set, which never took off.
It is to conventional superh what itanium is to x86.
Rob
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