Date: Sat, 16 Nov 2024 15:44:53 +0100 From: tuexen@freebsd.org To: Alan Somers <asomers@freebsd.org> Cc: Tom Jones <thj@freebsd.org>, freebsd-riscv@freebsd.org Subject: Re: Help wanted improving Rust support for RISC-V Message-ID: <0408D5F2-C44C-4000-941C-244B3BBC6C2A@freebsd.org> In-Reply-To: <CAOtMX2g838YdPnfL2Jo31jHNTnoPC_RpxC6M2de5pvquO=cnCA@mail.gmail.com> References: <CAOtMX2iUfMktVkYrnc5ufQ460PpnqG2YP2DYmavAoDQz%2BOWk9g@mail.gmail.com> <fca8a77e-99b2-4615-a7d3-1dae4d2d3565@app.fastmail.com> <CAOtMX2g838YdPnfL2Jo31jHNTnoPC_RpxC6M2de5pvquO=cnCA@mail.gmail.com>
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> On 16. Nov 2024, at 15:26, Alan Somers <asomers@freebsd.org> wrote: >=20 >=20 >=20 > On Sat, Nov 16, 2024, 2:21=E2=80=AFAM Tom Jones <thj@freebsd.org> = wrote: >=20 >=20 > On Fri, Nov 15, 2024, at 23:47, Alan Somers wrote: >> I want to improve the state of Rust on FreeBSD in general, and RISC-V >> in particular. My plan is: >>=20 >> * Assemble a corpus of crates heavy on OS stuff (like Nix and Tokio) >> and ensure that their tests pass on Riscv FreeBSD. >> * Update libc's ABI to FreeBSD 12, finally eliminating the need for >> COMPAT_11 on riscv to run Rust programs. >> * Ensure that the corpus of crates still passes their tests. >> * Convince the libc maintainers to use the FreeBSD 12 ABI, for riscv = only. >> * After a full Rust release cycle (at least 6 weeks), and maybe two, >> if there are no reports of breakage, and if Poudriere looks good, use >> that as justification to raise libc's ABI for all architectures. >>=20 >> But in order to do any of this, I need access to riscv hardware. A >> virtual instance at Scaleway[^1][^2] would be ideal, but I don't know >> if FreeBSD can run there. Has anybody tried it? Failing that, I >> would need to either acquire some hardware myself, or borrow access = to >> somebody else's. Or, convince some other developer to do the work >> himself. But I won't be able to help very much if I don't have = direct >> access. >>=20 >> Can anybody on this list help me get some access? >=20 > I can=E2=80=99t help with scaleway, it sounds like an interesting = choice. Hi Alan, neither can I... Depending on the resources you are willing to spend, = https://eu.mouser.com/ProductDetail/SiFive/HF105-001?qs=3DImq1NPwxi75JBw6u= lD0quQ%3D%3D might be an option. Best regards Michael >=20 > I have no idea of the current state of easily and affordable available = hardware. The visonfive 2 might be a good choice, there has been a lot = of work in the year since I last tried it.=20 >=20 > https://adventurist.me/posts/00315 >=20 > It=E2=80=99s probably still the easiest to get hold of if a little = underwhelming.=20 >=20 > You don=E2=80=99t mention qemu, is there some reason you can=E2=80=99t = start there? >=20 > - Tom >=20 > I haven't had good luck with using qemu-user-static to emulate armv7.
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