On Mon, May 09, 2022 at 11:44:28AM +0300, Efraim Flashner wrote: > On Mon, May 09, 2022 at 12:14:50AM +0200, Ludovic Courtès wrote: > > Hi! > > > > Vagrant Cascadian <[email protected]> skribis: > > > > > Well, I guess I answered my initial question by reading the error > > > message... guix/cpu.scm ... how did that work before for things like > > > cross-building, where /proc/cpuinfo is *definitely* wrong to get > > > information about the architecture you're building for? > > > > (guix cpu) is used when passing ‘--tune’, which is used for native > > builds: > > > > > > https://hpc.guix.info/blog/2022/01/tuning-packages-for-a-cpu-micro-architecture/ > > I have a WIP patch for adding CPU detection for aarch64. Perhaps it'll > help with the issues?
(ins)[efraim@pbp guix]$ ./pre-inst-env guix shell --export-manifest gsl
openblas gcc-toolchain --tune
;;; note: source file /home/efraim/workspace/guix/guix/cpu.scm
;;; newer than compiled /home/efraim/workspace/guix/guix/cpu.go
;;; ("aarch64" #f #f #f #<<set> vhash: #<vhash 1602dca0 9 pairs> insert:
#<procedure %insert (t-5ce36f5c768e728-317 t-5ce36f5c768e728-319)> ref:
#<procedure vhash-assoc (key vhash #:optional equal? hash)>>)
hint: Consider passing the `--check' option once to make sure your shell does
not clobber environment variables.
guix shell: tuning [email protected] for CPU armv8-a
;; What follows is a "manifest" equivalent to the command line you gave.
;; You can store it in a file that you may then pass to any 'guix' command
;; that accepts a '--manifest' (or '-m') option.
(use-modules (guix transformations))
(define transform1
(options->transformation '((tune . "armv8-a"))))
(packages->manifest
(list (transform1 (specification->package "gsl"))
(transform1 (specification->package "openblas"))
(transform1
(specification->package "gcc-toolchain"))))
--
Efraim Flashner <[email protected]> אפרים פלשנר
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