On Mon, Aug 01, 2022 at 03:46:21PM -0400, Philip McGrath wrote: > Hi folks, > > I have a patch series at https://gitlab.com/philip1/guix-patches/-/tree/zuo > for the Racket 8.5.900 release candidate for the imminent Racket 8.6 > release.[1] The patch series also enables Racket CS and the > 'chez-scheme-for-racket' package on systems they haven't supported until now, > such as powerpc64le-linux—at least, I think it does: I'm hoping some of you > can test it. The riscv64-linux, mips64el-linux, and i586-gnu are similarly > situated: I ask particularly about powerpc64le-linux because Matthew Flatt > has tested it upstream (thanks to the GCC Compile Farm). > > If you just want to help quickly, try this: > > guix time-machine --url=https://gitlab.com/philip1/guix-patches --branch=zuo > --disable-authentication -- build chez-scheme-for-racket racket > > and let me know how it goes, either here or at [2]. Allow about an hour for > the build. (So, not *that* quickly …) > > Some more background about what's new: > > The systems I listed above are ones for which Racket's variant of Chez Scheme > doesn't (yet!) have backends to generate machine code. With these changes, > they instead can now use "pbarch" backends added to Racket's variant of Chez > Scheme: a "portable bytecode" mode specialized to word size and endianness, > with core bytecode additionally compiled to C. > > I've cross-compiled 'chez-scheme-for-racket' and 'racket-vm-cs' successfully > for the Linux-based systems. (There's still a problem with i586-pc-gnu, > probably some missing/different C flag.) Unfortunately, I ran into a QEMU > error [3] when I tried an emulated build, possibly related to Racket BC's use > of SIGSEGV to implement the GC write barrier, and I don't have access to any > of the relevant hardware myself. So, I'm hoping people who do might be able > to give it a try! > > Thanks, > Philip > > [1]: https://racket.discourse.group/t/racket-v8-6-release-thread/1091 > [2]: > https://racket.discourse.group/t/chez-for-architectures-without-native-backends/950 > [3]: > https://racket.discourse.group/t/chez-for-architectures-without-native-backends/950/13
In general I should be able to help with the riscv64-linux for testing. Unfortunately I'm working remotely for the next few weeks and a power outage at home brought down my machines, so I won't be able to for a while yet. For mips64el, Guix used the Loongson2F as a build machine and target while Debian targets the Loongson3A. I do have one of the retired Lemote machines we used, but I haven't had it powered up for a few years and isn't currently prepared for building packages. -- Efraim Flashner <efr...@flashner.co.il> אפרים פלשנר GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted
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