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List: opensolaris-tools-discuss
Subject: Re: [tools-discuss] Project Proposal -- Port to MIPS architecture
From: "Mark Martin" <storycrafter () gmail ! com>
Date: 2008-10-19 14:07:30
Message-ID: e40c28290810190707m62d3909eh3ce00aad2a9558a4 () mail ! gmail ! com
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On Sun, Oct 19, 2008 at 2:44 AM, "C. Bergström" <cbergstrom@netsyncro.com>wrote:
> Mark Martin wrote:
>
>> I am seeking approval for a project for porting OpenSolaris to the MIPS
>> architecture.
>>
>> Proposal: Provide code changes, tools, documentation, and other necessary
>> artifacts for a port of OpenSolaris to the MIPS architecture. Movidis, a
>> maker of MIPS based components and systems has expressed interest in support
>> of this port, so it is likely that their products will be the initial
>> supported platforms -- support for other MIPS based platforms may follow
>> suit. The current project goal is to support the MIPS64 architecture,
>> although the MIPS32 ISA may also be a possibility.
>> Among other deliverables, it is expected that this port will include
>> integration of some or all of changes identified in the gccfss project:
>> http://www.opensolaris.org/jive/thread.jspa?threadID=24934, and preserved
>> here: http://cr.opensolaris.org/~devnull/6515400/<http://cr.opensolaris.org/%7Edevnull/6515400/><
>> http://cr.opensolaris.org/%7Edevnull/6515400/>. There may be additional
>> key core kernel changes similar to those identified in the PowerPC port
>> project. Some of these changes were necessary for support for a gcc based
>> cross compilation tool chain. This cross compiler tool chain is necessary
>> for boot strap of the port, but a self-hosting, native gcc tool chain is
>> also a goal for the project.
>>
>> A discussion list and source repository are also requested.
>>
> It's too bad sun cc source isn't available yet.. I'm addicted to the
> quality of some of the code that SS12 and especially SSX is producing
> otherwise I'd be 100% 1+.. I've been working on size optimizations which
> code possibly pay off in the not too distant future for an embedded
> platform.
Hence tools-discuss in the distribution list :) I consider it a necessary
evil that GCC is in the bootstrap tool-chain and most likely the native
build tool-chain as well. That was going to be the fate for PowerPC had it
gotten that far.
This is also a gap. I believe it is possible to build at least the
OpenSolaris ON consolidation bits with GCC at the moment (although I am not
certain of which version). GCC 4 compilation is not possible without at
least some of those fixes I referenced, so I believe 3.x is required (at
least that was the case with the PowerPC port from nv-56). Also, C++
compilation for other consolidations is going to be a sticky issue as the
Sun C++ ABI is the preferred and (almost) required C++ ABI according to
current ARC requirements. I believe, for the moment, that closing that gap
would have to be a follow-on project. I want to see a port coming up to run
levels > 1 before I go working on fixing layered software issues.
On that note, this brings up other issues such as distribution and testing
down the road. I would like to suggest that the scope for this project be
to simply bring up the port for recent versions of the ON, SFW, and X
consolidations and I would look to the Emerging Platforms Community to
assist in creating follow on projects to close distribution, testing, and
developer p & p gaps. As items come up that need to be brought for ARC
attention, I can at least lead some of those tasks.
>
>
> Thanks
>
> ./C
>
[Attachment #5 (text/html)]
<div dir="ltr"><br><br><div class="gmail_quote">On Sun, Oct 19, 2008 at 2:44 AM, \
"C. Bergström" <span dir="ltr"><<a \
href="mailto:cbergstrom@netsyncro.com">cbergstrom@netsyncro.com</a>></span> \
wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, \
204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Mark Martin wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); \
margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d"> I am seeking \
approval for a project for porting OpenSolaris to the MIPS architecture.<br> <br>
Proposal: Provide code changes, tools, documentation, and other necessary artifacts \
for a port of OpenSolaris to the MIPS architecture. Movidis, a maker of MIPS \
based components and systems has expressed interest in support of this port, so it is \
likely that their products will be the initial supported platforms -- support for \
other MIPS based platforms may follow suit. The current project goal is to \
support the MIPS64 architecture, although the MIPS32 ISA may also be a possibility. \
<br> </div>
Among other deliverables, it is expected that this port will include integration of \
some or all of changes identified in the gccfss project: <a \
href="http://www.opensolaris.org/jive/thread.jspa?threadID=24934" \
target="_blank">http://www.opensolaris.org/jive/thread.jspa?threadID=24934</a>, and \
preserved here: <a href="http://cr.opensolaris.org/%7Edevnull/6515400/" \
target="_blank">http://cr.opensolaris.org/~devnull/6515400/</a> <<a \
href="http://cr.opensolaris.org/%7Edevnull/6515400/" \
target="_blank">http://cr.opensolaris.org/%7Edevnull/6515400/</a>>. There \
may be additional key core kernel changes similar to those identified in the PowerPC \
port project. Some of these changes were necessary for support for a gcc based \
cross compilation tool chain. This cross compiler tool chain is necessary for \
boot strap of the port, but a self-hosting, native gcc tool chain is also a goal for \
the project.<div class="Ih2E3d"> <br>
<br>
A discussion list and source repository are also requested.<br>
</div></blockquote>
It's too bad sun cc source isn't available yet.. I'm addicted to the \
quality of some of the code that SS12 and especially SSX is producing otherwise \
I'd be 100% 1+.. I've been working on size optimizations which code possibly \
pay off in the not too distant future for an embedded platform.</blockquote> \
<div><br>Hence tools-discuss in the distribution list :) I consider it a \
necessary evil that GCC is in the bootstrap tool-chain and most likely the native \
build tool-chain as well. That was going to be the fate for PowerPC had it \
gotten that far. <br> <br>This is also a gap. I believe it is possible to \
build at least the OpenSolaris ON consolidation bits with GCC at the moment (although \
I am not certain of which version). GCC 4 compilation is not possible without \
at least some of those fixes I referenced, so I believe 3.x is required (at least \
that was the case with the PowerPC port from nv-56). Also, C++ compilation for \
other consolidations is going to be a sticky issue as the Sun C++ ABI is the \
preferred and (almost) required C++ ABI according to current ARC requirements. \
I believe, for the moment, that closing that gap would have to be a follow-on \
project. I want to see a port coming up to run levels > 1 before I go \
working on fixing layered software issues.<br> <br>On that note, this brings up other \
issues such as distribution and testing down the road. I would like to suggest \
that the scope for this project be to simply bring up the port for recent versions of \
the ON, SFW, and X consolidations and I would look to the Emerging Platforms \
Community to assist in creating follow on projects to close distribution, testing, \
and developer p & p gaps. As items come up that need to be brought for ARC \
attention, I can at least lead some of those tasks.<br> </div><blockquote \
class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt \
0pt 0.8ex; padding-left: 1ex;"><br> <br>
Thanks<br><font color="#888888">
<br>
./C<br>
</font></blockquote></div><br></div>
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