diff options
Diffstat (limited to 'gnu/packages/chez.scm')
| -rw-r--r-- | gnu/packages/chez.scm | 97 |
1 files changed, 90 insertions, 7 deletions
diff --git a/gnu/packages/chez.scm b/gnu/packages/chez.scm index 5d5108a2b1..e7ddab0d1f 100644 --- a/gnu/packages/chez.scm +++ b/gnu/packages/chez.scm @@ -52,6 +52,21 @@ chez-machine->threaded unpack-nanopass+stex)) +;; Commentary: +;; +;; The bootstrapping paths for Chez Scheme and Racket are closely +;; entwined. Racket CS (the default Racket implementation) is based on (a fork +;; of) Chez Scheme. Racket's variant of Chez Scheme shares sources for +;; nanopass and stex with upstream Chez Scheme. +;; +;; Racket's variant of Chez Scheme can be bootstrapped by an older Racket +;; implementation, Racket BC, which can be bootstrapped from C. Porting that +;; code to work with upstream Chez Scheme (or finding an old version that +;; does) is our best hope for some day bootstrapping upstream Chez Scheme from +;; source. +;; +;; Code: + (define (chez-machine->nonthreaded machine) "Given a string MACHINE naming a Chez Scheme machine type, returns a string naming the nonthreaded machine type for the same architecture and OS as @@ -327,6 +342,78 @@ generates native code for each target processor, with support for x86, x86_64, and 32-bit PowerPC architectures.") (license asl2.0))) +(define-public chez-scheme-for-racket + (package + (inherit chez-scheme) + (name "chez-scheme-for-racket") + (version "9.5.7.3") + ;; The version should match `(scheme-fork-version-number)`. + ;; See racket/src/ChezScheme/s/cmacros.ss c. line 360. + ;; It will always be different than the upstream version! + ;; When updating, remember to also update %racket-version in racket.scm. + (source #f) ; avoid problematic cycle with racket.scm + (inputs + (modify-inputs (package-inputs chez-scheme) + (delete "libx11" "util-linux:lib"))) + (native-inputs + (modify-inputs (package-native-inputs chez-scheme) + (replace "chez-scheme-bootstrap-bootfiles" + chez-scheme-for-racket-bootstrap-bootfiles))) + (arguments + (substitute-keyword-arguments (package-arguments chez-scheme) + ((#:configure-flags cfg-flags #~'()) + #~(cons "--disable-x11" #$cfg-flags)) + ((#:phases those-phases #~%standard-phases) + #~(let* ((those-phases #$those-phases) + (unpack (assoc-ref those-phases 'unpack))) + (modify-phases those-phases + (replace 'unpack + (lambda args + (unpack #:source #$(or (package-source this-package) + (package-source racket-vm-bc))))) + (add-after 'unpack 'chdir + (lambda args + (chdir "racket/src/ChezScheme")))))))) + (supported-systems (filter nix-system->chez-machine + %supported-systems)) + (home-page "https://github.com/racket/ChezScheme") + ;; ^ This is downstream of https://github.com/racket/racket, + ;; but it's designed to be a friendly landing place for people + ;; who want a ChezScheme-shaped repositroy. + (synopsis "Variant of Chez Scheme extended for Racket") + (description "This variant of Chez Scheme is extended to support the +implementation of Racket. It may be useful on platforms that are not yet +supported by upstream Chez Scheme. + +Main additions to Chez Scheme in the Racket variant: +@itemize @bullet +@item +AArch64 support +@item +Portable bytes (@code{pb}) support, which is mainly useful for bootstrapping +a build on any supported platform +@item +Unboxed floating-point arithmetic and flvectors +@item +Type reconstruction during optimization (especially for safe code) +@item +Continuation attachments +@item +Parallel garbage collection, in-place garbage collection for old-generation +objects (instead of always copying), and reachability-based memory +accounting +@item +Ordered finalization, immobile (but collectable) objects, weak/ephemeron +generic hash tables, and reference bytevectors +@item +Faster multiplication and division for large exact numbers +@end itemize") + (license asl2.0))) + +;; +;; Bootfiles: +;; + (define-public chez-scheme-bootstrap-bootfiles (package (inherit chez-scheme) @@ -368,11 +455,7 @@ source."))) (package (inherit chez-scheme-bootstrap-bootfiles) (name "chez-scheme-for-racket-bootstrap-bootfiles") - (version "9.5.7.3") - ;; The version should match `(scheme-fork-version-number)`. - ;; See racket/src/ChezScheme/s/cmacros.ss c. line 360. - ;; It will always be different than the upstream version! - ;; When updating, remember to also update %racket-version in racket.scm. + (version (package-version chez-scheme-for-racket)) (source #f) ; avoid problematic cycle with racket.scm (native-inputs (list chez-nanopass-bootstrap racket-vm-bc)) ;; TODO: cross compilation @@ -398,8 +481,8 @@ source."))) (invoke (search-input-file (or native-inputs inputs) "/opt/racket-vm/bin/racket") "rktboot/main.rkt")))))))) - (supported-systems (filter nix-system->chez-machine - %supported-systems)) + (supported-systems + (package-supported-systems chez-scheme-for-racket)) (home-page "https://github.com/racket/ChezScheme") ;; ^ This is downstream of https://github.com/racket/racket, ;; but it's designed to be a friendly landing place for people |