[jackhill/guix/guix.git] / gnu / packages / cross-base.scm

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@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 (gnu packages cross-base)
  #:use-module (guix licenses)
  #:use-module (gnu packages)
  #:use-module (gnu packages gcc)
  #:use-module (gnu packages base)
  #:use-module (gnu packages linux)
  #: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)
  #:export (cross-binutils
            cross-libc
            cross-gcc))

(define (cross p target)
  (package (inherit p)
    (location (source-properties->location (current-source-location)))
    (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 (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.
                        `(cons "--with-sysroot=/no-such-path"
                               ,flags)))))))
    (cross binutils target)))

(define* (cross-gcc target
                    #:optional (xbinutils (cross-binutils target)) libc)
  "Return a cross-compiler for TARGET, where TARGET is a GNU triplet.  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."
  (define args
    ;; Get the arguments as if we were building for TARGET.  In particular, we
    ;; want `glibc-dynamic-linker' to return the right thing.
    (parameterize ((%current-system (gnu-triplet->nix-system target)))
      (package-arguments gcc-4.7)))

  (package (inherit gcc-4.7)
    (name (string-append "gcc-cross-"
                         (if libc "" "sans-libc-")
                         target))
    (arguments
     `(#:implicit-inputs? #f
       #:modules ((guix build gnu-build-system)
                  (guix build utils)
                  (ice-9 regex)
                  (srfi srfi-1)
                  (srfi srfi-26))
       #:patches (list (assoc-ref %build-inputs "patch/cross-env-vars"))

       ,@(substitute-keyword-arguments args
           ((#:configure-flags flags)
            `(append (list ,(string-append "--target=" target)
                           ,@(if libc
                                 '()
                                 `( ;; Disable features not needed at this stage.
                                   "--disable-shared" "--enable-static"

                                   ;; Disable C++ because libstdc++'s
                                   ;; configure script otherwise fails with
                                   ;; "Link tests are not allowed after
                                   ;; GCC_NO_EXECUTABLES."
                                   "--enable-languages=c"

                                   "--disable-threads" ; libgcc, would need libc
                                   "--disable-libmudflap"
                                   "--disable-libgomp"
                                   "--disable-libssp"
                                   "--disable-libquadmath"
                                   "--disable-decimal-float" ; would need libc
                                   )))

                     ,(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)
            (let ((phases
                   `(alist-cons-after
                     'install 'make-cross-binutils-visible
                     (lambda* (#:key outputs inputs #:allow-other-keys)
                       (let* ((out      (assoc-ref outputs "out"))
                              (libexec  (string-append out "/libexec/gcc/"
                                                       ,target))
                              (binutils (string-append
                                         (assoc-ref inputs "binutils-cross")
                                         "/bin/" ,target "-")))
                         (for-each (lambda (file)
                                     (symlink (string-append binutils file)
                                              (string-append libexec "/"
                                                             file)))
                                   '("as" "ld" "nm"))
                         #t))
                     ,phases)))
             (if libc
                 `(alist-cons-before
                   'configure 'set-cross-path
                   (lambda* (#:key inputs #:allow-other-keys)
                     ;; Add the cross Linux headers to CROSS_CPATH, and remove
                     ;; them from CPATH.
                     (let ((libc  (assoc-ref inputs "libc"))
                           (linux (assoc-ref inputs
                                             "libc/cross-linux-headers")))
                       (define (cross? x)
                         ;; Return #t if X is a cross-libc or cross Linux.
                         (or (string-prefix? libc x)
                             (string-prefix? linux x)))

                       (setenv "CROSS_CPATH"
                               (string-append libc "/include:"
                                              linux "/include"))
                       (setenv "CROSS_LIBRARY_PATH"
                               (string-append libc "/lib"))

                       (let ((cpath   (search-path-as-string->list
                                       (getenv "CPATH")))
                             (libpath (search-path-as-string->list
                                       (getenv "LIBRARY_PATH"))))
                         (setenv "CPATH"
                                 (list->search-path-as-string
                                  (remove cross? cpath) ":"))
                         (setenv "LIBRARY_PATH"
                                 (list->search-path-as-string
                                  (remove cross? libpath) ":"))
                         #t)))
                   ,phases)
                 phases)))
           ((#:strip-binaries? _)
            ;; 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.
            #f))))
    (inputs
     `(("patch/cross-env-vars"
        ,(search-patch "gcc-cross-environment-variables.patch"))

       ("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 gcc-4.7)
                               (alist-delete "libc" %final-inputs))))
           (if libc
               `(("libc" ,libc)
                 ,@inputs)
               inputs))))

    ;; Only search target inputs, not host inputs.
    (search-paths
     (list (search-path-specification
            (variable "CROSS_CPATH")
            (directories '("include")))
           (search-path-specification
            (variable "CROSS_LIBRARY_PATH")
            (directories '("lib" "lib64")))))
    (native-search-paths '())))

(define* (cross-libc target
                     #:optional
                     (xgcc (cross-gcc target))
                     (xbinutils (cross-binutils target)))
  "Return a libc cross-built for TARGET, a GNU triplet.  Use XGCC and
XBINUTILS and the cross tool chain."
  (define xlinux-headers
    (package (inherit linux-libre-headers)
      (name (string-append (package-name linux-libre-headers)
                           "-cross-" target))
      (arguments
       (substitute-keyword-arguments (package-arguments linux-libre-headers)
         ((#:phases phases)
          `(alist-replace
            'build
            (lambda _
              (setenv "ARCH" ,(system->linux-architecture target))
              (format #t "`ARCH' set to `~a' (cross compiling)~%" (getenv "ARCH"))

              (and (zero? (system* "make" "defconfig"))
                   (zero? (system* "make" "mrproper" "headers_check"))))
            ,phases))))
      (inputs `(("cross-gcc" ,xgcc)
                ("cross-binutils" ,xbinutils)
                ,@(package-inputs linux-libre-headers)))))

  (package (inherit glibc)
    (name (string-append "glibc-cross-" target))
    (arguments
     (substitute-keyword-arguments
         `(#:strip-binaries? #f                ; disable stripping (see above)
           ,@(package-arguments glibc))
       ((#:configure-flags flags)
        `(cons ,(string-append "--host=" target)
               ,flags))
       ((#:phases phases)
        `(alist-cons-before
          'configure 'set-cross-linux-headers-path
          (lambda* (#:key inputs #:allow-other-keys)
            (let ((linux (assoc-ref inputs "cross-linux-headers")))
              (setenv "CROSS_CPATH"
                      (string-append linux "/include"))
              #t))
          ,phases))))
    (propagated-inputs `(("cross-linux-headers" ,xlinux-headers)))
    (inputs `(("cross-gcc" ,xgcc)
              ("cross-binutils" ,xbinutils)
              ,@(package-inputs glibc)))))

\f
;;;
;;; Concrete cross toolchains.
;;;

(define-public xgcc-mips64el
  (let ((triplet "mips64el-linux-gnu"))
    (cross-gcc triplet
               (cross-binutils triplet)
               (cross-libc triplet))))

;; (define-public xgcc-armel
;;   (let ((triplet "armel-linux-gnueabi"))
;;     (cross-gcc triplet
;;                (cross-binutils triplet)
;;                (cross-libc triplet))))
Commit	Line	Data
827d2891 LC	1	;;; GNU Guix --- Functional package management for GNU
	2	;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
	3	;;;
	4	;;; This file is part of GNU Guix.
	5	;;;
	6	;;; GNU Guix is free software; you can redistribute it and/or modify it
	7	;;; under the terms of the GNU General Public License as published by
	8	;;; the Free Software Foundation; either version 3 of the License, or (at
	9	;;; your option) any later version.
	10	;;;
	11	;;; GNU Guix is distributed in the hope that it will be useful, but
	12	;;; WITHOUT ANY WARRANTY; without even the implied warranty of
	13	;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	;;; GNU General Public License for more details.
	15	;;;
	16	;;; You should have received a copy of the GNU General Public License
	17	;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
	18
	19	(define-module (gnu packages cross-base)
	20	#:use-module (guix licenses)
	21	#:use-module (gnu packages)
f594028a	22	#:use-module (gnu packages gcc)
827d2891 LC	23	#:use-module (gnu packages base)
	24	#:use-module (gnu packages linux)
	25	#:use-module (guix packages)
	26	#:use-module (guix download)
	27	#:use-module (guix utils)
	28	#:use-module (guix build-system gnu)
	29	#:use-module (guix build-system trivial)
	30	#:use-module (srfi srfi-1)
	31	#:use-module (srfi srfi-26)
264218a4 LC	32	#:use-module (ice-9 match)
	33	#:export (cross-binutils
	34	cross-libc
	35	cross-gcc))
827d2891 LC	36
	37	(define (cross p target)
	38	(package (inherit p)
	39	(location (source-properties->location (current-source-location)))
	40	(name (string-append (package-name p) "-cross-" target))
	41	(arguments
	42	(substitute-keyword-arguments (package-arguments p)
	43	((#:configure-flags flags)
	44	`(cons ,(string-append "--target=" target)
	45	,flags))))))
	46
47e74d6e LC	47	(define (cross-binutils target)
	48	"Return a cross-Binutils for TARGET."
	49	(let ((binutils (package (inherit binutils)
	50	(arguments
	51	(substitute-keyword-arguments (package-arguments
	52	binutils)
	53	((#:configure-flags flags)
	54	;; Build with `--with-sysroot' so that ld honors
	55	;; DT_RUNPATH entries when searching for a needed
	56	;; library. This works because as a side effect
	57	;; `genscripts.sh' sets `USE_LIBPATH=yes', which tells
	58	;; elf32.em to use DT_RUNPATH in its search list.
	59	`(cons "--with-sysroot=/no-such-path"
	60	,flags)))))))
	61	(cross binutils target)))
827d2891 LC	62
	63	(define* (cross-gcc target
	64	#:optional (xbinutils (cross-binutils target)) libc)
	65	"Return a cross-compiler for TARGET, where TARGET is a GNU triplet. Use
	66	XBINUTILS as the associated cross-Binutils. If LIBC is false, then build a
	67	GCC that does not target a libc; otherwise, target that libc."
	68	(define args
	69	;; Get the arguments as if we were building for TARGET. In particular, we
	70	;; want `glibc-dynamic-linker' to return the right thing.
	71	(parameterize ((%current-system (gnu-triplet->nix-system target)))
	72	(package-arguments gcc-4.7)))
	73
	74	(package (inherit gcc-4.7)
	75	(name (string-append "gcc-cross-"
	76	(if libc "" "sans-libc-")
	77	target))
	78	(arguments
	79	`(#:implicit-inputs? #f
	80	#:modules ((guix build gnu-build-system)
	81	(guix build utils)
	82	(ice-9 regex)
	83	(srfi srfi-1)
	84	(srfi srfi-26))
	85	#:patches (list (assoc-ref %build-inputs "patch/cross-env-vars"))
	86
	87	,@(substitute-keyword-arguments args
	88	((#:configure-flags flags)
	89	`(append (list ,(string-append "--target=" target)
	90	,@(if libc
	91	'()
	92	`( ;; Disable features not needed at this stage.
	93	"--disable-shared" "--enable-static"
	94
	95	;; Disable C++ because libstdc++'s
	96	;; configure script otherwise fails with
	97	;; "Link tests are not allowed after
	98	;; GCC_NO_EXECUTABLES."
	99	"--enable-languages=c"
	100
	101	"--disable-threads" ; libgcc, would need libc
	102	"--disable-libmudflap"
	103	"--disable-libgomp"
	104	"--disable-libssp"
	105	"--disable-libquadmath"
	106	"--disable-decimal-float" ; would need libc
	107	)))
	108
	109	,(if libc
	110	flags
	111	`(remove (cut string-match "--enable-languages.*" <>)
	112	,flags))))
	113	((#:make-flags flags)
	114	(if libc
	115	`(let ((libc (assoc-ref %build-inputs "libc")))
	116	;; FLAGS_FOR_TARGET are needed for the target libraries to
	117	;; receive the -Bxxx for the startfiles.
	118	(cons (string-append "FLAGS_FOR_TARGET=-B" libc "/lib")
	119	,flags))
	120	flags))
	121	((#:phases phases)
	122	(let ((phases
	123	`(alist-cons-after
	124	'install 'make-cross-binutils-visible
	125	(lambda* (#:key outputs inputs #:allow-other-keys)
126	(let* ((out (assoc-ref outputs "out"))
127	(libexec (string-append out "/libexec/gcc/"
128	,target))
129	(binutils (string-append
130	(assoc-ref inputs "binutils-cross")
131	"/bin/" ,target "-")))
132	(for-each (lambda (file)
133	(symlink (string-append binutils file)
134	(string-append libexec "/"
135	file)))
136	'("as" "ld" "nm"))
137	#t))
138	,phases)))
139	(if libc
140	`(alist-cons-before
141	'configure 'set-cross-path
142	(lambda* (#:key inputs #:allow-other-keys)
143	;; Add the cross Linux headers to CROSS_CPATH, and remove
144	;; them from CPATH.
145	(let ((libc (assoc-ref inputs "libc"))
146	(linux (assoc-ref inputs
147	"libc/cross-linux-headers")))
148	(define (cross? x)
149	;; Return #t if X is a cross-libc or cross Linux.
150	(or (string-prefix? libc x)
151	(string-prefix? linux x)))
152
153	(setenv "CROSS_CPATH"
154	(string-append libc "/include:"
155	linux "/include"))
156	(setenv "CROSS_LIBRARY_PATH"
157	(string-append libc "/lib"))
158
159	(let ((cpath (search-path-as-string->list
160	(getenv "CPATH")))
161	(libpath (search-path-as-string->list
162	(getenv "LIBRARY_PATH"))))
163	(setenv "CPATH"
164	(list->search-path-as-string
165	(remove cross? cpath) ":"))
166	(setenv "LIBRARY_PATH"
167	(list->search-path-as-string
168	(remove cross? libpath) ":"))
169	#t)))
170	,phases)
171	phases)))
172	((#:strip-binaries? _)
173	;; Disable stripping as this can break binaries, with object files
174	;; of libgcc.a showing up as having an unknown architecture. See
175	;; <http://lists.fedoraproject.org/pipermail/arm/2010-August/000663.html>
176	;; for instance.
177	#f))))
178	(inputs
179	`(("patch/cross-env-vars"
180	,(search-patch "gcc-cross-environment-variables.patch"))
181
182	("binutils-cross" ,xbinutils)
183
184	;; Call it differently so that the builder can check whether the "libc"
185	;; input is #f.
186	("libc-native" ,@(assoc-ref %final-inputs "libc"))
187
188	;; Remaining inputs.
189	,@(let ((inputs (append (package-inputs gcc-4.7)
190	(alist-delete "libc" %final-inputs))))
191	(if libc
192	`(("libc" ,libc)
193	,@inputs)
17bb886f LC	194	inputs))))
	195
	196	;; Only search target inputs, not host inputs.
	197	(search-paths
	198	(list (search-path-specification
	199	(variable "CROSS_CPATH")
	200	(directories '("include")))
	201	(search-path-specification
	202	(variable "CROSS_LIBRARY_PATH")
	203	(directories '("lib" "lib64")))))
	204	(native-search-paths '())))
827d2891 LC	205
	206	(define* (cross-libc target
	207	#:optional
	208	(xgcc (cross-gcc target))
	209	(xbinutils (cross-binutils target)))
	210	"Return a libc cross-built for TARGET, a GNU triplet. Use XGCC and
	211	XBINUTILS and the cross tool chain."
	212	(define xlinux-headers
	213	(package (inherit linux-libre-headers)
	214	(name (string-append (package-name linux-libre-headers)
	215	"-cross-" target))
	216	(arguments
	217	(substitute-keyword-arguments (package-arguments linux-libre-headers)
	218	((#:phases phases)
	219	`(alist-replace
	220	'build
	221	(lambda _
	222	(setenv "ARCH" ,(system->linux-architecture target))
	223	(format #t "`ARCH' set to `~a' (cross compiling)~%" (getenv "ARCH"))
	224
	225	(and (zero? (system* "make" "defconfig"))
	226	(zero? (system* "make" "mrproper" "headers_check"))))
	227	,phases))))
	228	(inputs `(("cross-gcc" ,xgcc)
	229	("cross-binutils" ,xbinutils)
	230	,@(package-inputs linux-libre-headers)))))
	231
	232	(package (inherit glibc)
	233	(name (string-append "glibc-cross-" target))
	234	(arguments
	235	(substitute-keyword-arguments
	236	`(#:strip-binaries? #f ; disable stripping (see above)
	237	,@(package-arguments glibc))
	238	((#:configure-flags flags)
	239	`(cons ,(string-append "--host=" target)
	240	,flags))
	241	((#:phases phases)
	242	`(alist-cons-before
	243	'configure 'set-cross-linux-headers-path
	244	(lambda* (#:key inputs #:allow-other-keys)
	245	(let ((linux (assoc-ref inputs "cross-linux-headers")))
	246	(setenv "CROSS_CPATH"
	247	(string-append linux "/include"))
	248	#t))
	249	,phases))))
	250	(propagated-inputs `(("cross-linux-headers" ,xlinux-headers)))
	251	(inputs `(("cross-gcc" ,xgcc)
	252	("cross-binutils" ,xbinutils)
	253	,@(package-inputs glibc)))))
	254
	255	\f
	256	;;;
	257	;;; Concrete cross toolchains.
	258	;;;
	259
	260	(define-public xgcc-mips64el
	261	(let ((triplet "mips64el-linux-gnu"))
	262	(cross-gcc triplet
	263	(cross-binutils triplet)
	264	(cross-libc triplet))))
	265
	266	;; (define-public xgcc-armel
	267	;; (let ((triplet "armel-linux-gnueabi"))
	268	;; (cross-gcc triplet
269	;; (cross-binutils triplet)
270	;; (cross-libc triplet))))