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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015, 2017 Manolis Fragkiskos Ragkousis <manolis837@gmail.com>
;;; Copyright © 2015, 2019, 2024 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@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 build make-bootstrap)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-19)
#:use-module (srfi srfi-26)
#:use-module (guix build utils)
#:export (copy-linux-headers
make-stripped-libc))
;; Commentary:
;;
;; This module provides facilities to build the bootstrap binaries.
;;
;; Code:
(define (copy-linux-headers output kernel-headers)
"Copy to OUTPUT the subset of KERNEL-HEADERS that is needed when producing a
bootstrap libc."
(let* ((incdir (string-append output "/include")))
(mkdir-p incdir)
;; Copy some of the Linux-Libre headers that glibc headers
;; refer to.
(mkdir (string-append incdir "/linux"))
(for-each (lambda (file)
(install-file (pk 'src (string-append kernel-headers "/include/linux/" file))
(pk 'dest (string-append incdir "/linux"))))
'(
"atalk.h" ; for 2.2.5
"errno.h"
"falloc.h"
"if_addr.h" ; for 2.16.0
"if_ether.h" ; for 2.2.5
"if_link.h" ; for 2.16.0
"ioctl.h"
"kernel.h"
"limits.h"
"neighbour.h" ; for 2.16.0
"netlink.h" ; for 2.16.0
"param.h"
"prctl.h" ; for 2.16.0
"posix_types.h"
"rtnetlink.h" ; for 2.16.0
"socket.h"
"stddef.h"
"swab.h" ; for 2.2.5
"sysctl.h"
"sysinfo.h" ; for 2.2.5
"types.h"
"version.h" ; for 2.2.5
))
(copy-recursively (string-append kernel-headers "/include/asm")
(string-append incdir "/asm"))
(copy-recursively (string-append kernel-headers "/include/asm-generic")
(string-append incdir "/asm-generic"))
(copy-recursively (string-append kernel-headers "/include/linux/byteorder")
(string-append incdir "/linux/byteorder"))
#t))
(define (make-stripped-libc output libc kernel-headers)
"Copy to OUTPUT the subset of LIBC and KERNEL-HEADERS that is needed
when producing a bootstrap libc."
(define (copy-mach-headers output kernel-headers)
(let ((mach-headers (readlink
(string-append kernel-headers "/include/mach")))
(incdir (string-append output "/include")))
(copy-recursively (string-append libc "/include") incdir)
;; As of glibc 2.39, essential Mach headers get installed by glibc
;; itself in its own includedir, except for most of mach/machine/*.h.
;; Copy anything that's missing from MACH-HEADERS.
(copy-recursively mach-headers
(string-append incdir "/mach")
#:select?
(let ((prefix (string-length mach-headers))
(target (string-append incdir "/mach")))
(lambda (file stat)
;; Select everything but files and symlinks that
;; already exist under TARGET.
(or (eq? 'directory (stat:type stat))
(let ((suffix (string-drop file prefix)))
(not (file-exists?
(in-vicinity target suffix))))))))))
(define (copy-libc+linux-headers output kernel-headers)
(let* ((incdir (string-append output "/include")))
(copy-recursively (string-append libc "/include") incdir)
(copy-linux-headers output kernel-headers)))
;; Include *.so, *.so.*, but also empty ar archives provided for backward
;; compatibility as of libc 2.39: libdl.a and libutil.a.
(define %libc-object-files-rx "^(crt.*|ld.*|lib(c|m|dl|rt|pthread|nsl|\
util).*\\.so(\\..*)?|lib(machuser|hurduser).so.*|(libc(rt|)|libpthread)\
_nonshared\\.a|lib(dl|util)\\.a)$")
(setvbuf (current-output-port) 'line)
(let* ((libdir (string-append output "/lib")))
(mkdir-p libdir)
(for-each (lambda (file)
(let ((target (string-append libdir "/"
(basename file))))
(copy-file file target)
(remove-store-references target)))
(find-files (string-append libc "/lib") %libc-object-files-rx))
#t)
(if (directory-exists? (string-append kernel-headers "/include/mach"))
(copy-mach-headers output kernel-headers)
(copy-libc+linux-headers output kernel-headers)))
|