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authorJosselin Poiret <dev@jpoiret.xyz>2022-05-23 22:37:26 +0200
committerMathieu Othacehe <othacehe@gnu.org>2022-05-25 09:27:25 +0200
commitdab819d5c4c55609efae098c8e3c2f2757c34e5b (patch)
tree43691e8653b203da8cd5100085f67253ce48f2a7 /guix/platform.scm
parentd129d962e437fd215c5e9428fc1b26e2d72ffbda (diff)
Move (gnu platform) and (gnu platforms ...) to guix/.
* gnu/platform.scm: * gnu/platforms/arm.scm: * gnu/platforms/hurd.scm: * gnu/platforms/mips.scm: * gnu/platforms/powerpc.scm: * gnu/platforms/riscv.scm: * gnu/platforms/s390.scm: * gnu/platforms/x86.scm: Move to guix/. * Makefile.am: * doc/guix.texi (Porting to a New Platform): * etc/release-manifest.scm: * gnu/ci.scm: * gnu/image.scm: * gnu/local.mk: * gnu/packages/bioinformatics.scm: * gnu/packages/bootstrap.scm: * gnu/packages/cross-base.scm: * gnu/packages/instrumentation.scm: * gnu/packages/linux.scm: * gnu/system/image.scm: * gnu/system/images/hurd.scm: * gnu/system/images/novena.scm: * gnu/system/images/pine64.scm: * gnu/system/images/pinebook-pro.scm: * gnu/system/images/rock64.scm: * guix/scripts/build.scm: * guix/scripts/system.scm: * guix/self.scm: Update (gnu platform...) to (guix platform...). Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 Mathieu Othacehe <othacehe@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix platform)
+ #:use-module (guix discovery)
+ #:use-module (guix memoization)
+ #:use-module (guix records)
+ #:use-module (guix ui)
+ #:use-module (srfi srfi-1)
+ #:export (platform
+ platform?
+ platform-target
+ platform-system
+ platform-linux-architecture
+ platform-glibc-dynamic-linker
+
+ platform-modules
+ platforms
+ lookup-platform-by-system
+ lookup-platform-by-target
+ lookup-platform-by-target-or-system
+ platform-system->target
+ platform-target->system
+
+ systems
+ targets))
+
+
+;;;
+;;; Platform record.
+;;;
+
+;; Description of a platform supported by GNU Guix.
+;;
+;; The 'target' field must be a valid GNU triplet as defined here:
+;; https://www.gnu.org/software/autoconf/manual/autoconf-2.68/html_node/Specifying-Target-Triplets.html.
+;; It is used for cross-compilation purposes.
+;;
+;; The 'system' field is the name of the corresponding system as defined in
+;; the (gnu packages bootstrap) module. It can be for instance
+;; "aarch64-linux" or "armhf-linux". It is used to emulate a different host
+;; architecture, for instance i686-linux on x86_64-linux-gnu, or armhf-linux
+;; on x86_64-linux, using the QEMU binfmt transparent emulation mechanism.
+;;
+;; The 'linux-architecture' is only relevant if the kernel is Linux. In that
+;; case, it corresponds to the ARCH variable used when building Linux.
+;;
+;; The 'glibc-dynamic-linker' field is the name of Glibc's dynamic linker for
+;; the corresponding system.
+(define-record-type* <platform> platform make-platform
+ platform?
+ (target platform-target)
+ (system platform-system)
+ (linux-architecture platform-linux-architecture
+ (default #f))
+ (glibc-dynamic-linker platform-glibc-dynamic-linker))
+
+
+;;;
+;;; Platforms.
+;;;
+
+(define (platform-modules)
+ "Return the list of platform modules."
+ (all-modules (map (lambda (entry)
+ `(,entry . "guix/platforms"))
+ %load-path)
+ #:warn warn-about-load-error))
+
+(define platforms
+ ;; The list of publically-known platforms.
+ (memoize
+ (lambda ()
+ (fold-module-public-variables (lambda (obj result)
+ (if (platform? obj)
+ (cons obj result)
+ result))
+ '()
+ (platform-modules)))))
+
+(define (lookup-platform-by-system system)
+ "Return the platform corresponding to the given SYSTEM."
+ (find (lambda (platform)
+ (let ((s (platform-system platform)))
+ (and (string? s) (string=? s system))))
+ (platforms)))
+
+(define (lookup-platform-by-target target)
+ "Return the platform corresponding to the given TARGET."
+ (find (lambda (platform)
+ (let ((t (platform-target platform)))
+ (and (string? t) (string=? t target))))
+ (platforms)))
+
+(define (lookup-platform-by-target-or-system target-or-system)
+ "Return the platform corresponding to the given TARGET or SYSTEM."
+ (or (lookup-platform-by-target target-or-system)
+ (lookup-platform-by-system target-or-system)))
+
+(define (platform-system->target system)
+ "Return the target matching the given SYSTEM if it exists or false
+otherwise."
+ (let ((platform (lookup-platform-by-system system)))
+ (and=> platform platform-target)))
+
+(define (platform-target->system target)
+ "Return the system matching the given TARGET if it exists or false
+otherwise."
+ (let ((platform (lookup-platform-by-target system)))
+ (and=> platform platform-system)))
+
+
+;;;
+;;; Systems & Targets.
+;;;
+
+(define (systems)
+ "Return the list of supported systems."
+ (delete-duplicates
+ (filter-map platform-system (platforms))))
+
+(define (targets)
+ "Return the list of supported targets."
+ (map platform-target (platforms)))