Palmer Dabbelt—September 21, 2018
Last Week in RISC-V: Sept 21, 2018
Introduction to Linux Kernel Development
For those of you interested in getting involved in the RISC-V Linux kernel porting effort, I wrote a short email that links to the various sources of information that might help people get started.
Developer Room at FOSDEM
I submitted a proposal for a RISC-V developer room at FOSDEM next February. Last year our talk went great and a room was suggested, so I anticipate this will be accepted. We should officially hear back about the submission by the end of the month. Thanks to Karsten for starting the thread that got the discussion started.
RISC-V Buildroot Patch Submission
Thanks to Mark Corbin from Embecosm for contributing this section
I have a (hopefully final) set of patches out for RISCV-64 support on Buildroot - see http://lists.busybox.net/pipermail/buildroot/2018-September/230689.html
Until these patches make it into the repository... a version based on Buildroot 2018.08-rc1 is available at https://github.com/riscv/riscv-buildroot - see the github wiki for details.
time_t on RISC-V Systems
As part of submitting the C-SKY Linux kernel port (which I pay attention
to because they used the RISC-V port as a template), Arnd Bergmann
brought up the possibility of C-SKY submitting a Linux port free of
time_t interfaces. I'd recently talked to some of the glibc
folks about this and we're hoping that the RISC-V port can be free of
time_t as well, and it's looking like things might line up to
do so for us. There's more information available as part of my hijack
of the C-SKY patch review
The official position here is that our 32-bit kernel ABI is not stable, because we haven't submitted our glibc port yet. This has been discussed with the Linux community and they seem OK with it, hopefully we'll soon have an upstream 32-bit glibc port so we can officially declare ABI stability!
RISC-V Microconference at Linux Plumbers
- September 21st: ORConf hosted by the Gdansk University of Technology in Gdansk, Poland.
- October 18: RISC-V Day Tokyo hosted by Keio University in Tokyo, Japan.
- October 22: RISC-V BoF at Embedded Linux Conference + IoT Summit Europe hosted by The Linux Foundation in Edinburgh, UK.
- November 13: RISC-V Microconference at Linux Plumbers Conference in Vancouver, Canada.
- December 3: RISC-V Summit in Santa Clara, CA.
Contributing to "Last Week in RISC-V"
Like everything else in the RISC-V ecosystem, this won't be possible as just a one-man effort. I'm hosting the sources at github.com/sifive/last-week-in-risc-v, so if you're comfortable editing them feel free to open a pull request. If you don't want to get involved in GitHub then you're also welcome to just mail me patches or blurbs for inclusion and I can merge them together.
I don't really have any specific criteria as to what will or won't be included. Part of the reason I'm doing this is that the RISC-V ecosystem has started to get big enough that there are huge sections of it that I know nothing about, so I think the starting criteria will be "anything I'm interested enough in to want to read" and we'll just go from there!