1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
|
;;; 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.
;; 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)))))))
(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."
(package (inherit gcc-4.8)
(name (string-append "gcc-cross-"
(if libc "" "sans-libc-")
target))
(source (origin (inherit (package-source gcc-4.8))
(patches
(list (search-patch "gcc-cross-environment-variables.patch")))))
(arguments
`(#:implicit-inputs? #f
#:modules ((guix build gnu-build-system)
(guix build utils)
(ice-9 regex)
(srfi srfi-1)
(srfi srfi-26))
,@(substitute-keyword-arguments (package-arguments gcc-4.8)
((#:configure-flags flags)
`(append (list ,(string-append "--target=" target)
,@(gcc-configure-flags-for-triplet 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-libatomic"
"--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))))
(native-inputs
`(("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-4.8)
(alist-delete "libc" %final-inputs))))
(if libc
`(("libc" ,libc)
,@inputs)
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))))
(native-inputs `(("cross-gcc" ,xgcc)
("cross-binutils" ,xbinutils)
,@(package-native-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)))
(native-inputs `(("cross-gcc" ,xgcc)
("cross-binutils" ,xbinutils)
,@(package-native-inputs glibc)))))
;;;
;;; Concrete cross toolchains.
;;;
(define-public xgcc-mips64el
(let ((triplet "mips64el-linux-gnuabi64")) ; N64 ABI
(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))))
|
