This patch parameterizes previously hard-coded instances of i686-w64-mingw32, adding support for x86_64-w64-mingw32. * gnu/packages/mingw.scm (make-mingw-w64): New procedure. (mingw-w64-i686, mingw-w64-x86_64): New variables. (%mingw-triplet): Remove. (mingw-w64): Update to point to 'mingw-w64-i686'. * gnu/packages/cross-base.scm (cross-gcc): Use 'libc' keyword argument if specified, instead of treating it as a boolean. (native-libc): Return the correct mingw-w64 depending on machine specified in target. * gnu/packages/bootstrap.scm (glibc-dynamic-linker): Add "x86_64-mingw". * gnu/build/cross-toolchain.scm (set-cross-path/mingw): Replace hardcoded 'i686-w64-mingw32' instances with 'target' keyword argument. (cross-gcc-build-phases): Update accordingly; use 'target-mingw?' implementation of target checking and add commentary. * gnu/ci.scm (%cross-targets): Add "x86_64-w64-mingw32".
		
			
				
	
	
		
			533 lines
		
	
	
	
		
			22 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
			
		
		
	
	
			533 lines
		
	
	
	
		
			22 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
;;; GNU Guix --- Functional package management for GNU
 | 
						||
;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
 | 
						||
;;; Copyright © 2014, 2015, 2018 Mark H Weaver <mhw@netris.org>
 | 
						||
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
 | 
						||
;;; Copyright © 2016 Manolis Fragkiskos Ragkousis <manolis837@gmail.com>
 | 
						||
;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 | 
						||
;;; Copyright © 2019 Carl Dong <contact@carldong.me>
 | 
						||
;;;
 | 
						||
;;; 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 (gnu packages cross-base)
 | 
						||
  #:use-module (gnu packages)
 | 
						||
  #:use-module (gnu packages gcc)
 | 
						||
  #:use-module (gnu packages base)
 | 
						||
  #:use-module (gnu packages linux)
 | 
						||
  #:use-module (gnu packages hurd)
 | 
						||
  #:use-module (gnu packages mingw)
 | 
						||
  #:use-module (guix packages)
 | 
						||
  #:use-module (guix download)
 | 
						||
  #:use-module (guix utils)
 | 
						||
  #:use-module (guix build-system gnu)
 | 
						||
  #:use-module (guix build-system trivial)
 | 
						||
  #:use-module (srfi srfi-1)
 | 
						||
  #:use-module (srfi srfi-26)
 | 
						||
  #:use-module (ice-9 match)
 | 
						||
  #:use-module (ice-9 regex)
 | 
						||
  #:export (cross-binutils
 | 
						||
            cross-libc
 | 
						||
            cross-gcc
 | 
						||
            cross-newlib?
 | 
						||
            cross-kernel-headers))
 | 
						||
 | 
						||
(define-syntax %xgcc
 | 
						||
  ;; GCC package used as the basis for cross-compilation.  It doesn't have to
 | 
						||
  ;; be 'gcc' and can be a specific variant such as 'gcc-4.8'.
 | 
						||
  ;;
 | 
						||
  ;; Note: This is a macro so that we do not refer to 'gcc' from the top
 | 
						||
  ;; level, which would lead to circular-dependency issues.
 | 
						||
  (identifier-syntax gcc))
 | 
						||
 | 
						||
(define %gcc-include-paths
 | 
						||
  ;; Environment variables for header search paths.
 | 
						||
  ;; Note: See <http://bugs.gnu.org/22186> for why not 'CPATH'.
 | 
						||
  '("C_INCLUDE_PATH"
 | 
						||
    "CPLUS_INCLUDE_PATH"
 | 
						||
    "OBJC_INCLUDE_PATH"
 | 
						||
    "OBJCPLUS_INCLUDE_PATH"))
 | 
						||
 | 
						||
(define %gcc-cross-include-paths
 | 
						||
  ;; Search path for target headers when cross-compiling.
 | 
						||
  (map (cut string-append "CROSS_" <>) %gcc-include-paths))
 | 
						||
 | 
						||
(define (cross p target)
 | 
						||
  (package (inherit p)
 | 
						||
    (name (string-append (package-name p) "-cross-" target))
 | 
						||
    (arguments
 | 
						||
     (substitute-keyword-arguments (package-arguments p)
 | 
						||
       ((#:configure-flags flags)
 | 
						||
        `(cons ,(string-append "--target=" target)
 | 
						||
               ,flags))))))
 | 
						||
 | 
						||
(define (package-with-patch original patch)
 | 
						||
  "Return package ORIGINAL with PATCH applied."
 | 
						||
  (package (inherit original)
 | 
						||
    (source (origin (inherit (package-source original))
 | 
						||
              (patches (list patch))))))
 | 
						||
 | 
						||
(define (cross-binutils target)
 | 
						||
  "Return a cross-Binutils for TARGET."
 | 
						||
  (let ((binutils (package (inherit binutils)
 | 
						||
                    (arguments
 | 
						||
                     (substitute-keyword-arguments (package-arguments
 | 
						||
                                                    binutils)
 | 
						||
                       ((#:configure-flags flags)
 | 
						||
                        ;; Build with `--with-sysroot' so that ld honors
 | 
						||
                        ;; DT_RUNPATH entries when searching for a needed
 | 
						||
                        ;; library.  This works because as a side effect
 | 
						||
                        ;; `genscripts.sh' sets `USE_LIBPATH=yes', which tells
 | 
						||
                        ;; elf32.em to use DT_RUNPATH in its search list.
 | 
						||
                        ;; See <http://sourceware.org/ml/binutils/2013-05/msg00312.html>.
 | 
						||
                        ;;
 | 
						||
                        ;; In theory choosing / as the sysroot could lead ld
 | 
						||
                        ;; to pick up native libs instead of target ones.  In
 | 
						||
                        ;; practice the RUNPATH of target libs only refers to
 | 
						||
                        ;; target libs, not native libs, so this is safe.
 | 
						||
                        `(cons "--with-sysroot=/" ,flags)))))))
 | 
						||
 | 
						||
    ;; For Xtensa, apply Qualcomm's patch.
 | 
						||
    (cross (if (string-prefix? "xtensa-" target)
 | 
						||
               (package-with-patch binutils
 | 
						||
                                   (search-patch
 | 
						||
                                    "ath9k-htc-firmware-binutils.patch"))
 | 
						||
               binutils)
 | 
						||
           target)))
 | 
						||
 | 
						||
(define (cross-gcc-arguments target xgcc libc)
 | 
						||
  "Return build system arguments for a cross-gcc for TARGET, using XGCC as the
 | 
						||
base compiler and using LIBC (which may be either a libc package or #f.)"
 | 
						||
  ;; Set the current target system so that 'glibc-dynamic-linker' returns the
 | 
						||
  ;; right name.
 | 
						||
  (parameterize ((%current-target-system target))
 | 
						||
    ;; Disable stripping as this can break binaries, with object files of
 | 
						||
    ;; libgcc.a showing up as having an unknown architecture.  See
 | 
						||
    ;; <http://lists.fedoraproject.org/pipermail/arm/2010-August/000663.html>
 | 
						||
    ;; for instance.
 | 
						||
    (let ((args `(#:strip-binaries? #f
 | 
						||
                  ,@(package-arguments xgcc))))
 | 
						||
     (substitute-keyword-arguments args
 | 
						||
       ((#:configure-flags flags)
 | 
						||
        `(append (list ,(string-append "--target=" target)
 | 
						||
                       ,@(if libc
 | 
						||
                             `( ;; Disable libcilkrts because it is not
 | 
						||
                                ;; ported to GNU/Hurd.
 | 
						||
                               "--disable-libcilkrts")
 | 
						||
                             `( ;; Disable features not needed at this stage.
 | 
						||
                               "--disable-shared" "--enable-static"
 | 
						||
                               "--enable-languages=c,c++"
 | 
						||
 | 
						||
                               ;; libstdc++ cannot be built at this stage
 | 
						||
                               ;; ("Link tests are not allowed after
 | 
						||
                               ;; GCC_NO_EXECUTABLES.").
 | 
						||
                               "--disable-libstdc++-v3"
 | 
						||
 | 
						||
                               "--disable-threads" ;libgcc, would need libc
 | 
						||
                               "--disable-libatomic"
 | 
						||
                               "--disable-libmudflap"
 | 
						||
                               "--disable-libgomp"
 | 
						||
                               "--disable-libssp"
 | 
						||
                               "--disable-libquadmath"
 | 
						||
                               "--disable-decimal-float" ;would need libc
 | 
						||
                               "--disable-libcilkrts"
 | 
						||
 | 
						||
                               ;; When target is any OS other than 'none' these
 | 
						||
                               ;; libraries will fail if there is no libc
 | 
						||
                               ;; present. See
 | 
						||
                               ;; <https://lists.gnu.org/archive/html/guix-devel/2016-02/msg01311.html>
 | 
						||
                               "--disable-libitm"
 | 
						||
                               "--disable-libvtv"
 | 
						||
                               "--disable-libsanitizer"
 | 
						||
                                ))
 | 
						||
 | 
						||
                       ;; For a newlib (non-glibc) target
 | 
						||
                       ,@(if (cross-newlib? target)
 | 
						||
                             '("--with-newlib")
 | 
						||
                             '()))
 | 
						||
 | 
						||
                 ,(if libc
 | 
						||
                      flags
 | 
						||
                      `(remove (cut string-match "--enable-languages.*" <>)
 | 
						||
                               ,flags))))
 | 
						||
       ((#:make-flags flags)
 | 
						||
        (if libc
 | 
						||
            `(let ((libc (assoc-ref %build-inputs "libc")))
 | 
						||
               ;; FLAGS_FOR_TARGET are needed for the target libraries to receive
 | 
						||
               ;; the -Bxxx for the startfiles.
 | 
						||
               (cons (string-append "FLAGS_FOR_TARGET=-B" libc "/lib")
 | 
						||
                     ,flags))
 | 
						||
            flags))
 | 
						||
       ((#:phases phases)
 | 
						||
        `(cross-gcc-build-phases ,target ,phases))))))
 | 
						||
 | 
						||
(define (cross-gcc-patches target)
 | 
						||
  "Return GCC patches needed for TARGET."
 | 
						||
  (cond ((string-prefix? "xtensa-" target)
 | 
						||
         ;; Patch by Qualcomm needed to build the ath9k-htc firmware.
 | 
						||
         (search-patches "ath9k-htc-firmware-gcc.patch"))
 | 
						||
        ((target-mingw? target)
 | 
						||
         (search-patches "gcc-4.9.3-mingw-gthr-default.patch"))
 | 
						||
        (else '())))
 | 
						||
 | 
						||
(define (cross-gcc-snippet target)
 | 
						||
  "Return GCC snippet needed for TARGET."
 | 
						||
  (cond ((target-mingw? target)
 | 
						||
         '(begin
 | 
						||
            (copy-recursively "libstdc++-v3/config/os/mingw32-w64"
 | 
						||
                              "libstdc++-v3/config/os/newlib")
 | 
						||
            #t))
 | 
						||
        (else #f)))
 | 
						||
 | 
						||
(define* (cross-gcc target
 | 
						||
                    #:key
 | 
						||
                    (xgcc %xgcc)
 | 
						||
                    (xbinutils (cross-binutils target))
 | 
						||
                    (libc #f))
 | 
						||
  "Return a cross-compiler for TARGET, where TARGET is a GNU triplet.  Use
 | 
						||
XGCC as the base compiler.  Use XBINUTILS as the associated cross-Binutils.
 | 
						||
If LIBC is false, then build a GCC that does not target a libc; otherwise,
 | 
						||
target that libc."
 | 
						||
  (package (inherit xgcc)
 | 
						||
    (name (string-append "gcc-cross-"
 | 
						||
                         (if libc "" "sans-libc-")
 | 
						||
                         target))
 | 
						||
    (source (origin (inherit (package-source xgcc))
 | 
						||
              (patches
 | 
						||
               (append
 | 
						||
                (origin-patches (package-source xgcc))
 | 
						||
                (cons (cond
 | 
						||
                       ((version>=? (package-version xgcc) "8.0") (search-patch "gcc-8-cross-environment-variables.patch"))
 | 
						||
                       ((version>=? (package-version xgcc) "6.0") (search-patch "gcc-6-cross-environment-variables.patch"))
 | 
						||
                       (else  (search-patch "gcc-cross-environment-variables.patch")))
 | 
						||
                      (cross-gcc-patches target))))
 | 
						||
              (modules '((guix build utils)))
 | 
						||
              (snippet
 | 
						||
               (cross-gcc-snippet target))))
 | 
						||
 | 
						||
    ;; For simplicity, use a single output.  Otherwise libgcc_s & co. are not
 | 
						||
    ;; found by default, etc.
 | 
						||
    (outputs '("out"))
 | 
						||
 | 
						||
    (arguments
 | 
						||
     `(#:implicit-inputs? #f
 | 
						||
       #:imported-modules ((gnu build cross-toolchain)
 | 
						||
                           ,@%gnu-build-system-modules)
 | 
						||
       #:modules ((guix build gnu-build-system)
 | 
						||
                  (guix build utils)
 | 
						||
                  (gnu build cross-toolchain)
 | 
						||
                  (srfi srfi-1)
 | 
						||
                  (srfi srfi-26)
 | 
						||
                  (ice-9 regex))
 | 
						||
 | 
						||
       ,@(cross-gcc-arguments target xgcc libc)))
 | 
						||
 | 
						||
    (native-inputs
 | 
						||
     `(("ld-wrapper-cross" ,(make-ld-wrapper
 | 
						||
                             (string-append "ld-wrapper-" target)
 | 
						||
                             #:target (const target)
 | 
						||
                             #:binutils xbinutils))
 | 
						||
       ("binutils-cross" ,xbinutils)
 | 
						||
 | 
						||
       ;; Call it differently so that the builder can check whether the "libc"
 | 
						||
       ;; input is #f.
 | 
						||
       ("libc-native" ,@(assoc-ref (%final-inputs) "libc"))
 | 
						||
 | 
						||
       ;; Remaining inputs.
 | 
						||
       ,@(let ((inputs (append (package-inputs xgcc)
 | 
						||
                               (alist-delete "libc" (%final-inputs)))))
 | 
						||
           (cond
 | 
						||
            ((target-mingw? target)
 | 
						||
             (if libc
 | 
						||
                 `(("libc" ,libc)
 | 
						||
                   ,@inputs)
 | 
						||
                 `(("mingw-source" ,(package-source mingw-w64))
 | 
						||
                   ,@inputs)))
 | 
						||
            (libc
 | 
						||
             `(("libc" ,libc)
 | 
						||
               ("libc:static" ,libc "static")
 | 
						||
               ("xkernel-headers"                ;the target headers
 | 
						||
                ,@(assoc-ref (package-propagated-inputs libc)
 | 
						||
                             "kernel-headers"))
 | 
						||
               ,@inputs))
 | 
						||
            (else inputs)))))
 | 
						||
 | 
						||
    (inputs '())
 | 
						||
 | 
						||
    ;; Only search target inputs, not host inputs.
 | 
						||
    (search-paths (cons (search-path-specification
 | 
						||
                         (variable "CROSS_LIBRARY_PATH")
 | 
						||
                         (files '("lib" "lib64")))
 | 
						||
                        (map (lambda (variable)
 | 
						||
                               (search-path-specification
 | 
						||
                                (variable variable)
 | 
						||
                                (files '("include"))))
 | 
						||
                             %gcc-cross-include-paths)))
 | 
						||
    (native-search-paths '())))
 | 
						||
 | 
						||
(define* (cross-kernel-headers target
 | 
						||
                               #:optional
 | 
						||
                               (linux-headers linux-libre-headers)
 | 
						||
                               (xgcc (cross-gcc target))
 | 
						||
                               (xbinutils (cross-binutils target)))
 | 
						||
  "Return headers depending on TARGET."
 | 
						||
 | 
						||
  (define xlinux-headers
 | 
						||
    (package (inherit linux-headers)
 | 
						||
      (name (string-append (package-name linux-headers)
 | 
						||
                           "-cross-" target))
 | 
						||
      (arguments
 | 
						||
       (substitute-keyword-arguments
 | 
						||
           `(#:implicit-cross-inputs? #f
 | 
						||
             ,@(package-arguments linux-headers))
 | 
						||
         ((#:phases phases)
 | 
						||
          `(alist-replace
 | 
						||
            'build
 | 
						||
            (lambda _
 | 
						||
              (setenv "ARCH" ,(system->linux-architecture target))
 | 
						||
              (format #t "`ARCH' set to `~a' (cross compiling)~%" (getenv "ARCH"))
 | 
						||
 | 
						||
              (invoke "make" ,(system->defconfig target))
 | 
						||
              (invoke "make" "mrproper" "headers_check"))
 | 
						||
            ,phases))))
 | 
						||
      (native-inputs `(("cross-gcc" ,xgcc)
 | 
						||
                       ("cross-binutils" ,xbinutils)
 | 
						||
                       ,@(package-native-inputs linux-headers)))))
 | 
						||
 | 
						||
  (define xgnumach-headers
 | 
						||
    (package (inherit gnumach-headers)
 | 
						||
      (name (string-append (package-name gnumach-headers)
 | 
						||
                           "-cross-" target))
 | 
						||
 | 
						||
      (native-inputs `(("cross-gcc" ,xgcc)
 | 
						||
                       ("cross-binutils" ,xbinutils)
 | 
						||
                       ,@(package-native-inputs gnumach-headers)))))
 | 
						||
 | 
						||
  (define xmig
 | 
						||
    (package (inherit mig)
 | 
						||
      (name (string-append "mig-cross"))
 | 
						||
      (arguments
 | 
						||
       `(#:modules ((guix build gnu-build-system)
 | 
						||
                    (guix build utils)
 | 
						||
                    (srfi srfi-26))
 | 
						||
         #:phases (modify-phases %standard-phases
 | 
						||
                    (add-before 'configure 'set-cross-headers-path
 | 
						||
                      (lambda* (#:key inputs #:allow-other-keys)
 | 
						||
                        (let* ((mach (assoc-ref inputs "cross-gnumach-headers"))
 | 
						||
                               (cpath (string-append mach "/include")))
 | 
						||
                          (for-each (cut setenv <> cpath)
 | 
						||
                                    ',%gcc-cross-include-paths)
 | 
						||
                          #t))))
 | 
						||
         #:configure-flags (list ,(string-append "--target=" target))
 | 
						||
         ,@(package-arguments mig)))
 | 
						||
 | 
						||
      (propagated-inputs `(("cross-gnumach-headers" ,xgnumach-headers)))
 | 
						||
      (native-inputs `(("cross-gcc" ,xgcc)
 | 
						||
                       ("cross-binutils" ,xbinutils)
 | 
						||
                       ,@(package-native-inputs mig)))))
 | 
						||
 | 
						||
  (define xhurd-headers
 | 
						||
    (package (inherit hurd-headers)
 | 
						||
      (name (string-append (package-name hurd-headers)
 | 
						||
                           "-cross-" target))
 | 
						||
 | 
						||
      (native-inputs `(("cross-gcc" ,xgcc)
 | 
						||
                       ("cross-binutils" ,xbinutils)
 | 
						||
                       ("cross-mig" ,xmig)
 | 
						||
                       ,@(alist-delete "mig"(package-native-inputs hurd-headers))))))
 | 
						||
 | 
						||
   (define xglibc/hurd-headers
 | 
						||
    (package (inherit glibc/hurd-headers)
 | 
						||
      (name (string-append (package-name glibc/hurd-headers)
 | 
						||
                           "-cross-" target))
 | 
						||
 | 
						||
      (arguments
 | 
						||
       (substitute-keyword-arguments
 | 
						||
           `(#:modules ((guix build gnu-build-system)
 | 
						||
                        (guix build utils)
 | 
						||
                        (srfi srfi-26))
 | 
						||
             ,@(package-arguments glibc/hurd-headers))
 | 
						||
         ((#:phases phases)
 | 
						||
          `(modify-phases ,phases
 | 
						||
             (add-after 'unpack 'set-cross-headers-path
 | 
						||
               (lambda* (#:key inputs #:allow-other-keys)
 | 
						||
                 (let* ((mach (assoc-ref inputs "gnumach-headers"))
 | 
						||
                        (hurd (assoc-ref inputs "hurd-headers"))
 | 
						||
                        (cpath (string-append mach "/include:"
 | 
						||
                                              hurd "/include")))
 | 
						||
                   (for-each (cut setenv <> cpath)
 | 
						||
                             ',%gcc-cross-include-paths)
 | 
						||
                   #t)))))))
 | 
						||
 | 
						||
      (propagated-inputs `(("gnumach-headers" ,xgnumach-headers)
 | 
						||
                           ("hurd-headers" ,xhurd-headers)))
 | 
						||
 | 
						||
      (native-inputs `(("cross-gcc" ,xgcc)
 | 
						||
                       ("cross-binutils" ,xbinutils)
 | 
						||
                       ("cross-mig" ,xmig)
 | 
						||
                       ,@(alist-delete "mig"(package-native-inputs glibc/hurd-headers))))))
 | 
						||
 | 
						||
  (define xhurd-minimal
 | 
						||
    (package (inherit hurd-minimal)
 | 
						||
      (name (string-append (package-name hurd-minimal)
 | 
						||
                           "-cross-" target))
 | 
						||
      (arguments
 | 
						||
       (substitute-keyword-arguments
 | 
						||
         `(#:modules ((guix build gnu-build-system)
 | 
						||
                      (guix build utils)
 | 
						||
                      (srfi srfi-26))
 | 
						||
           ,@(package-arguments hurd-minimal))
 | 
						||
         ((#:phases phases)
 | 
						||
          `(modify-phases ,phases
 | 
						||
             (add-before 'configure 'set-cross-headers-path
 | 
						||
               (lambda* (#:key inputs #:allow-other-keys)
 | 
						||
                 (let* ((glibc-headers (assoc-ref inputs "cross-glibc-hurd-headers"))
 | 
						||
                        (cpath (string-append glibc-headers "/include")))
 | 
						||
                   (for-each (cut setenv <> cpath)
 | 
						||
                             ',%gcc-cross-include-paths)
 | 
						||
                   #t)))))))
 | 
						||
 | 
						||
      (inputs `(("cross-glibc-hurd-headers" ,xglibc/hurd-headers)))
 | 
						||
 | 
						||
      (native-inputs `(("cross-gcc" ,xgcc)
 | 
						||
                       ("cross-binutils" ,xbinutils)
 | 
						||
                       ("cross-mig" ,xmig)
 | 
						||
                       ,@(alist-delete "mig"(package-native-inputs hurd-minimal))))))
 | 
						||
 | 
						||
  (define xhurd-core-headers
 | 
						||
    (package (inherit hurd-core-headers)
 | 
						||
      (name (string-append (package-name hurd-core-headers)
 | 
						||
                           "-cross-" target))
 | 
						||
 | 
						||
      (inputs `(("gnumach-headers" ,xgnumach-headers)
 | 
						||
                ("hurd-headers" ,xhurd-headers)
 | 
						||
                ("hurd-minimal" ,xhurd-minimal)))
 | 
						||
 | 
						||
      (native-inputs `(("cross-gcc" ,xgcc)
 | 
						||
                       ("cross-binutils" ,xbinutils)
 | 
						||
                       ("cross-mig" ,xmig)
 | 
						||
                       ,@(package-native-inputs hurd-core-headers)))))
 | 
						||
 | 
						||
  (match target
 | 
						||
    ((or "i586-pc-gnu" "i586-gnu") xhurd-core-headers)
 | 
						||
    (_ xlinux-headers)))
 | 
						||
 | 
						||
(define* (cross-libc target
 | 
						||
                     #:optional
 | 
						||
                     (libc glibc)
 | 
						||
                     (xgcc (cross-gcc target))
 | 
						||
                     (xbinutils (cross-binutils target))
 | 
						||
                     (xheaders (cross-kernel-headers target)))
 | 
						||
  "Return LIBC cross-built for TARGET, a GNU triplet. Use XGCC and XBINUTILS
 | 
						||
and the cross tool chain."
 | 
						||
  (if (cross-newlib? target libc)
 | 
						||
      (native-libc target libc)
 | 
						||
      (let ((libc libc))
 | 
						||
        (package (inherit libc)
 | 
						||
          (name (string-append "glibc-cross-" target))
 | 
						||
          (arguments
 | 
						||
           (substitute-keyword-arguments
 | 
						||
               `(;; Disable stripping (see above.)
 | 
						||
                 #:strip-binaries? #f
 | 
						||
 | 
						||
                 ;; This package is used as a target input, but it should not have
 | 
						||
                 ;; the usual cross-compilation inputs since that would include
 | 
						||
                 ;; itself.
 | 
						||
                 #:implicit-cross-inputs? #f
 | 
						||
 | 
						||
                 ;; We need SRFI 26.
 | 
						||
                 #:modules ((guix build gnu-build-system)
 | 
						||
                            (guix build utils)
 | 
						||
                            (srfi srfi-26))
 | 
						||
 | 
						||
                 ,@(package-arguments libc))
 | 
						||
             ((#:configure-flags flags)
 | 
						||
              `(cons ,(string-append "--host=" target)
 | 
						||
                     ,(if (hurd-triplet? target)
 | 
						||
                          `(cons "--disable-werror" ,flags)
 | 
						||
                          flags)))
 | 
						||
             ((#:phases phases)
 | 
						||
              `(modify-phases ,phases
 | 
						||
                 ;; XXX: The hack below allows us to make sure the
 | 
						||
                 ;; 'apply-hurd-patch' phase gets added in the first
 | 
						||
                 ;; cross-libc, but does *not* get added twice subsequently
 | 
						||
                 ;; when cross-building another libc.
 | 
						||
                 ,@(if (and (hurd-triplet? target)
 | 
						||
                            (not (hurd-target?)))
 | 
						||
                       `((add-after 'unpack 'apply-hurd-patch
 | 
						||
                           (lambda* (#:key inputs native-inputs
 | 
						||
                                     #:allow-other-keys)
 | 
						||
                             ;; TODO: Move this to 'patches' field.
 | 
						||
                             (let ((patch (or (assoc-ref native-inputs
 | 
						||
                                                         "hurd-magic-pid-patch")
 | 
						||
                                              (assoc-ref inputs
 | 
						||
                                                         "hurd-magic-pid-patch"))))
 | 
						||
                               (invoke "patch" "-p1" "--force" "--input"
 | 
						||
                                       patch)))))
 | 
						||
                       '())
 | 
						||
                 (add-before 'configure 'set-cross-kernel-headers-path
 | 
						||
                   (lambda* (#:key inputs #:allow-other-keys)
 | 
						||
                     (let* ((kernel (assoc-ref inputs "kernel-headers"))
 | 
						||
                            (cpath (string-append kernel "/include")))
 | 
						||
                       (for-each (cut setenv <> cpath)
 | 
						||
                                 ',%gcc-cross-include-paths)
 | 
						||
                       (setenv "CROSS_LIBRARY_PATH"
 | 
						||
                               (string-append kernel "/lib")) ; for Hurd's libihash
 | 
						||
                       #t)))))))
 | 
						||
 | 
						||
          ;; Shadow the native "kernel-headers" because glibc's recipe expects the
 | 
						||
          ;; "kernel-headers" input to point to the right thing.
 | 
						||
          (propagated-inputs `(("kernel-headers" ,xheaders)))
 | 
						||
 | 
						||
          ;; FIXME: 'static-bash' should really be an input, not a native input, but
 | 
						||
          ;; to do that will require building an intermediate cross libc.
 | 
						||
          (inputs '())
 | 
						||
 | 
						||
          (native-inputs `(("cross-gcc" ,xgcc)
 | 
						||
                           ("cross-binutils" ,xbinutils)
 | 
						||
                           ,@(if (hurd-triplet? target)
 | 
						||
                                 `(("cross-mig"
 | 
						||
                                    ,@(assoc-ref (package-native-inputs xheaders)
 | 
						||
                                                 "cross-mig"))
 | 
						||
                                   ("hurd-magic-pid-patch"
 | 
						||
                                    ,(search-patch "glibc-hurd-magic-pid.patch")))
 | 
						||
                                 '())
 | 
						||
                           ,@(package-inputs libc)     ;FIXME: static-bash
 | 
						||
                           ,@(package-native-inputs libc)))))))
 | 
						||
 | 
						||
(define* (native-libc target
 | 
						||
                     #:optional
 | 
						||
                     (libc glibc))
 | 
						||
  (if (target-mingw? target)
 | 
						||
      (let ((machine (substring target 0 (string-index target #\-))))
 | 
						||
        (make-mingw-w64 machine))
 | 
						||
      libc))
 | 
						||
 | 
						||
(define* (cross-newlib? target
 | 
						||
                       #:optional
 | 
						||
                       (libc glibc))
 | 
						||
  (not (eq? (native-libc target libc) libc)))
 | 
						||
 | 
						||
 | 
						||
;;; Concrete cross tool chains are instantiated like this:
 | 
						||
;;
 | 
						||
;; (define-public xgcc-armhf
 | 
						||
;;   (let ((triplet "arm-linux-gnueabihf"))
 | 
						||
;;     (cross-gcc triplet
 | 
						||
;;                #:xbinutils (cross-binutils triplet)
 | 
						||
;;                #:libc (cross-libc triplet))))
 | 
						||
;;
 | 
						||
;;; We don't do that here because we'd be referring to bindings from (gnu
 | 
						||
;;; packages gcc) from the top level, which doesn't play well with circular
 | 
						||
;;; dependencies among modules.
 |