;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013-2018, 2020, 2023-2024 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014, 2015, 2018 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2016, 2019, 2023, 2024 Janneke Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2016 Manolis Fragkiskos Ragkousis <manolis837@gmail.com>
;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2019, 2020, 2021 Marius Bakke <marius@gnu.org>
;;; Copyright © 2019 Carl Dong <contact@carldong.me>
;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2023 Josselin Poiret <dev@jpoiret.xyz>
;;; Copyright © 2023 Foundation Devices, Inc. <hello@foundationdevices.com>
;;;
;;; 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 avr)
#: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 memoization)
#:use-module (guix platform)
#:use-module (guix packages)
#:use-module (guix diagnostics)
#:use-module (guix download)
#:use-module (guix i18n)
#:use-module (guix utils)
#:use-module (guix build-system gnu)
#:use-module (guix build-system trivial)
#:use-module (guix gexp)
#: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-mig
cross-kernel-headers
cross-gcc-toolchain))
(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-14))
(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 (contains-keyword? args)
"Check if ARGS contains a keyword object."
(find keyword? args))
(define* (cross-binutils . args)
(if (or (= (length args) 1) (contains-keyword? args))
(apply cross-binutils* args)
(apply cross-binutils/deprecated args)))
(define* (cross-binutils/deprecated target #:optional (binutils binutils))
(warning (G_ "'cross-binutils' must be used with keyword arguments~%"))
(cross-binutils* target #:binutils binutils))
(define (cross-binutils-package target)
"Returns the default package to use for a cross-Binutils for TARGET."
(cond
;; The xtensa-ath9k-elf target is used solely to build the firmware for
;; ath9k devices, the patches to binutils have not been updated and
;; only apply to binutils@2.33.
((string=? target "xtensa-ath9k-elf") binutils-2.33)
(else binutils)))
(define* (cross-binutils* target
#:key
(binutils (cross-binutils-package target)))
"Return a cross-Binutils for TARGET using BINUTILS."
(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=/" #$flags)))))))
;; For xtensa-ath9k-elf, apply Qualcomm's patch.
(cross (cond ((string=? target "xtensa-ath9k-elf")
(package-with-patches binutils
(search-patches
"ath9k-htc-firmware-binutils.patch")))
((target-mingw? target)
(package-with-extra-patches
(package-with-extra-configure-variable
;; mingw binutils does not work correctly when configured
;; with `--enable-compressed-debug-sections`. An error
;; like the following will occur whenever you try to link:
;;
;; x86_64-w64-mingw32-ld: final link failed: bad value
;;
;; TODO: This seems like a deeper problem that warrants
;; deeper investigation.
binutils "--enable-compressed-debug-sections" "no")
(search-patches "binutils-mingw-w64-timestamp.patch"
"binutils-mingw-w64-deterministic.patch")))
(else binutils))
target)))
(define (cross-gcc-arguments target xgcc libc)
"Return build system arguments for a cross-gcc for TARGET, using XGCC as the
base compiler and using LIBC (which may be either a libc package or #f.)"
;; Set the current target system so that 'glibc-dynamic-linker' returns the
;; right name.
(parameterize ((%current-target-system target))
;; Disable stripping as this can break binaries, with object files of
;; libgcc.a showing up as having an unknown architecture. See
;; <http://lists.fedoraproject.org/pipermail/arm/2010-August/000663.html>
;; for instance.
(let ((args `(#:strip-binaries? #f
,@(package-arguments xgcc))))
(substitute-keyword-arguments args
((#:configure-flags flags)
#~(append (list #$(string-append "--target=" target)
#$@(if libc
#~( ;; Disable libcilkrts because it is not
;; ported to GNU/Hurd.
"--disable-libcilkrts"
;; When building a cross compiler, --with-sysroot is
;; implicitly set to "$gcc_tooldir/sys-root". This does
;; not work for us, because --with-native-system-header-dir
;; is searched for relative to this location. Thus, we set
;; it to "/" so GCC is able to find the target libc headers.
;; This is safe because in practice GCC uses CROSS_CPATH
;; & co to separate target and host libraries.
"--with-sysroot=/")
#~( ;; 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-libmpx"
"--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"
))
;; Install cross-built libraries such as libgcc_s.so in
;; the "lib" output.
#$@(if libc
#~((string-append "--with-toolexeclibdir="
(assoc-ref %outputs "lib")
"/" #$target "/lib"))
#~())
#$@(if (target-avr? target)
#~("--enable-multilib")
#~())
#$@(if (and libc (target-avr? target))
#~(;; By default GCC will attemp to compile
;; some libraries for other languages (objc,
;; fortran) but compilation fails for AVR.
"--enable-languages=c,c++"
(string-append "--with-native-system-header-dir="
#$libc "/" #$target "/include"))
#~()))
(remove
(lambda (flag)
(or (string-prefix? "--enable-languages" flag)
(and #$libc
#$(target-avr? target)
(string-prefix? "--with-native-system-header-dir"
flag))
(and #$(target-avr? target)
(string=? flag "--disable-multilib"))))
#$flags)))
((#:make-flags flags)
(if libc
#~(let ((libc (assoc-ref %build-inputs "libc"))
(lib-prefix (if #$(target-avr? target)
(string-append "/" #$target)
"")))
;; 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-prefix "/lib")
#$flags))
flags))
((#:phases phases)
#~(cross-gcc-build-phases #$target #$phases))))))
(define (cross-gcc-patches xgcc target)
"Return GCC patches needed for XGCC and 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)
(append (if (not (version>=? (package-version xgcc) "13.0"))
(search-patches "gcc-4.9.3-mingw-gthr-default.patch")
'())
(if (version>=? (package-version xgcc) "7.0")
(search-patches "gcc-7-cross-mingw.patch")
'())))
(else '())))
(define (cross-gcc-snippet target)
"Return GCC snippet needed for TARGET."
`(begin
,@(if (target-mingw? target)
'((copy-recursively "libstdc++-v3/config/os/mingw32-w64"
"libstdc++-v3/config/os/newlib"))
'())
;; TOOLDIR_BASE_PREFIX is erroneous when using a separate "lib"
;; output. Specify it correctly, otherwise GCC won't find its shared
;; libraries installed in the "lib" output. See:
;; https://lists.gnu.org/archive/html/bug-guix/2020-03/msg00196.html.
(substitute* "gcc/Makefile.in"
(("-DTOOLDIR_BASE_PREFIX=[^ ]*")
"-DTOOLDIR_BASE_PREFIX=\\\"../../../../\\\""))
#t))
(define (cross-gcc-search-paths target)
"Return list of GCC search path specifications needed for TARGET."
(cons (search-path-specification
(variable "CROSS_LIBRARY_PATH")
(files `("lib" "lib64"
,@(list (string-append target "/lib")
(string-append target "/lib64")))))
(map (lambda (variable)
(search-path-specification
(variable variable)
;; Add 'include/c++' here so that <cstdlib>'s
;; "#include_next <stdlib.h>" finds GCC's
;; <stdlib.h>, not libc's.
(files (match variable
("CROSS_CPLUS_INCLUDE_PATH"
`("include/c++" "include"
,@(list (string-append target "/include/c++")
(string-append target "/include"))))
(_
`("include"
,(string-append target "/include")))))))
%gcc-cross-include-paths)))
(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))
(append (cond
((version>=? (package-version xgcc) "13.0")
(search-patches "gcc-13-cross-system-header-dir.patch"
"gcc-12-cross-environment-variables.patch"
"gcc-cross-gxx-include-dir.patch"))
((version>=? (package-version xgcc) "12.0")
(search-patches "gcc-12-cross-environment-variables.patch"
"gcc-cross-gxx-include-dir.patch"))
((version>=? (package-version xgcc) "10.0")
(search-patches "gcc-10-cross-environment-variables.patch"
"gcc-cross-gxx-include-dir.patch"))
((version>=? (package-version xgcc) "8.0")
(search-patches "gcc-8-cross-environment-variables.patch"))
((version>=? (package-version xgcc) "6.0")
(search-patches "gcc-7-cross-toolexeclibdir.patch"
"gcc-6-cross-environment-variables.patch"))
(else
(search-patches "gcc-cross-environment-variables.patch")))
(cross-gcc-patches xgcc target))))
(modules '((guix build utils)))
(snippet
(cross-gcc-snippet target))))
(outputs '("out" "lib"))
(arguments
`(#:implicit-inputs? #f
#:imported-modules ((gnu build cross-toolchain)
,@%default-gnu-imported-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)
,@(let ((inputs (append (package-inputs xgcc)
(fold alist-delete (%final-inputs)
'("libc" "libc:static"))
;; Call it differently so that the builder can
;; check whether the "libc" input is #f.
`(("libc-native"
,@(assoc-ref (%final-inputs) "libc"))
("libc-native:static"
,@(assoc-ref (%final-inputs)
"libc:static"))))))
(cond
((target-mingw? target)
(if libc
`(,@inputs
("libc" ,libc))
`(,@inputs
("mingw-source" ,(package-source mingw-w64)))))
((and libc (target-avr? target))
`(,@inputs
("libc" ,libc)))
(libc
`(,@inputs
("libc" ,libc)
("libc:static" ,libc "static")
("xkernel-headers" ;the target headers
,@(assoc-ref (package-propagated-inputs libc)
"kernel-headers"))))
(else inputs)))))
(inputs '())
;; Only search target inputs, not host inputs.
(search-paths (cross-gcc-search-paths target))
(native-search-paths '())))
(define* (cross-kernel-headers . args)
(if (or (= (length args) 1) (contains-keyword? args))
(apply cross-kernel-headers* args)
(apply cross-kernel-headers/deprecated args)))
(define* (cross-kernel-headers/deprecated target
#:optional
(linux-headers linux-libre-headers)
(xgcc (cross-gcc target))
(xbinutils (cross-binutils target)))
(warning (G_ "'cross-kernel-headers' must be used with keyword arguments~%"))
(cross-kernel-headers* target
#:linux-headers linux-headers
#:xgcc xgcc
#:xbinutils xbinutils))
(define* (cross-gnumach-headers target
#:key
(xgcc (cross-gcc target))
(xbinutils (cross-binutils target)))
(package
(inherit gnumach-headers)
(name (string-append (package-name gnumach-headers)
"-cross-" target))
(arguments
(substitute-keyword-arguments (package-arguments gnumach-headers)
((#:phases phases #~%standard-phases)
#~(modify-phases #$phases
;; Cheat by setting the host_cpu variable manually, since using
;; --host= would require a working cross-compiler, which we don't
;; have yet.
(add-after 'unpack 'substitute-host-cpu
(lambda _
(substitute* "configure.ac"
(("AC_CANONICAL_HOST")
#$(string-append
"host_cpu="
(match target
((? target-x86-32?)
"i386")
((? target-x86-64?)
"x86_64")))))))))))
(native-inputs
(modify-inputs (package-native-inputs gnumach-headers)
(prepend xgcc xbinutils)))))
(define* (cross-mig target
#:key
(xgcc (cross-gcc target))
(xbinutils (cross-binutils target)))
"Return a cross-mig for TARGET, where TARGET is a GNU triplet. Use XGCC as
the base compiler. Use XBINUTILS as the associated cross-Binutils."
(define xgnumach-headers
(cross-gnumach-headers target
#:xgcc xgcc
#:xbinutils xbinutils))
(package
(inherit mig)
(name (string-append "mig-cross"))
(arguments
(substitute-keyword-arguments (package-arguments mig)
((#:configure-flags flags #~'())
#~(list #$(string-append "--target=" target)))
((#:tests? _ #f)
#f)
((#:phases phases #~%standard-phases)
#~(modify-phases #$phases
(add-before 'configure 'set-cross-headers-path
(lambda* (#:key inputs #:allow-other-keys)
(let* ((mach #+xgnumach-headers)
(cpath (string-append mach "/include")))
(for-each (lambda (variable)
(setenv variable cpath))
'#$%gcc-cross-include-paths))))))))
(propagated-inputs
(list xgnumach-headers))
(native-inputs
(modify-inputs (package-native-inputs mig)
(prepend xgcc xbinutils)))))
(define* (cross-kernel-headers* target
#:key
(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)
`(modify-phases ,phases
(replace 'build
(lambda _
(setenv "ARCH" ,(platform-linux-architecture
(lookup-platform-by-target target)))
(format #t "`ARCH' set to `~a' (cross compiling)~%"
(getenv "ARCH"))
(invoke "make" ,(system->defconfig target))
(invoke "make" "mrproper"
,@(if (version>=? (package-version linux-headers) "5.3")
'("headers")
'("headers_check")))))))))
(native-inputs `(("cross-gcc" ,xgcc)
("cross-binutils" ,xbinutils)
,@(package-native-inputs linux-headers)))))
(define xmig
(cross-mig target #:xgcc xgcc #:xbinutils xbinutils))
(define xgnumach-headers
(cross-gnumach-headers target #:xgcc xgcc #:xbinutils xbinutils))
(define xhurd-headers
(package
(inherit hurd-headers)
(name (string-append (package-name hurd-headers)
"-cross-" target))
(arguments
(substitute-keyword-arguments (package-arguments hurd-headers)
((#:configure-flags flags)
`(cons* ,(string-append "--build=" (%current-system))
,(string-append "--host=" target)
,flags))))
(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)))))
((#:configure-flags flags)
`(cons* ,(string-append "--build=" (%current-system))
,(string-append "--host=" target)
,flags))))
(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))
((#:configure-flags flags)
`(cons* ,(string-append "--build=" (%current-system))
,(string-append "--host=" target)
,flags))
((#:phases phases)
#~(modify-phases #$phases
(add-after 'unpack 'delete-shared-target
;; Cannot create shared libraries due to missing crt1.o
(lambda _
(substitute* "Makeconf"
(("(targets := \\$\\(libname\\)\\.a) \\$\\(libname\\)\\.so" all static)
static)
(("\\$\\(DESTDIR\\)\\$\\(libdir\\)/\\$\\(libname\\)\\.so\\.\\$\\(hurd-version\\)")
"")
(("^libs: .*\\.so\\..*" all)
(string-append "# " all)))))
(add-before 'configure 'set-cross-headers-path
(lambda* (#:key inputs #:allow-other-keys)
(let* ((glibc-headers (assoc-ref inputs "cross-glibc-hurd-headers"))
(mach-headers (assoc-ref inputs "cross-gnumach-headers"))
(cpath (string-append glibc-headers "/include"
":" mach-headers "/include")))
(for-each (cut setenv <> cpath)
'#$%gcc-cross-include-paths)
#t)))))))
(inputs `(("cross-glibc-hurd-headers" ,xglibc/hurd-headers)
("cross-gnumach-headers" ,xgnumach-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)))))
(if (target-hurd? target)
xhurd-core-headers
xlinux-headers))
(define* (cross-libc . args)
(if (or (= (length args) 1) (contains-keyword? args))
(apply cross-libc* args)
(apply cross-libc/deprecated args)))
(define* (cross-libc/deprecated target
#:optional
(libc (libc-for-target target))
(xgcc (cross-gcc target))
(xbinutils (cross-binutils target))
(xheaders (cross-kernel-headers target)))
(warning (G_ "'cross-libc' must be used with keyword arguments~%"))
(cross-libc* target
#:libc libc
#:xgcc xgcc
#:xbinutils xbinutils
#:xheaders xheaders))
(define* (cross-libc* target
#:key
(libc (libc-for-target target))
(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 TARGET doesn't have a standard C library #f is
returned."
(match target
((? target-mingw?)
(let ((machine (substring target 0 (string-index target #\-))))
(make-mingw-w64 machine
#:xgcc xgcc
#:xbinutils xbinutils)))
((or (? target-linux?) (? target-hurd?))
(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 (target-hurd? target)
`(append (list "--disable-werror")
,flags)
flags)))
((#:phases phases)
`(modify-phases ,phases
(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)))
(add-before 'configure 'add-cross-binutils-to-PATH
(lambda* (#:key native-inputs inputs #:allow-other-keys)
;; Add BINUTILS/TARGET/bin to $PATH so that 'gcc
;; -print-prog-name=objdump' returns the correct name. See
;; <https://inbox.sourceware.org/libc-alpha/d72f5f6f-cc3a-bd89-0800-ffb068928e0f@linaro.org/t/>.
(define cross-objdump
(search-input-file
(or native-inputs inputs)
(string-append ,target "/bin/objdump")))
(define cross-binutils
(dirname cross-objdump))
(format #t "adding '~a' to the front of 'PATH'~%"
cross-binutils)
(setenv "PATH" (string-append cross-binutils ":"
(getenv "PATH")))))
;; This phase would require running 'localedef' built for
;; TARGET, which is impossible by definition.
(delete 'install-utf8-c-locale)
,@(if (target-hurd? target)
`((add-after 'install 'augment-libc.so
(lambda* (#:key outputs #:allow-other-keys)
(let ((out (assoc-ref outputs "out")))
(substitute* (string-append out "/lib/libc.so")
(("/[^ ]+/lib/libc.so.0.3")
(string-append out "/lib/libc.so.0.3"
" libmachuser.so libhurduser.so"))))))
(add-after 'install 'create-machine-symlink
(lambda* (#:key outputs #:allow-other-keys)
(let* ((out (assoc-ref outputs "out"))
(cpu ,(match target
((? target-x86-32?)
"i386")
((? target-x86-64?)
"x86_64")))
(machine (string-append
out "/include/mach/machine")))
(unless (file-exists? machine)
(symlink cpu machine))))))
'())))))
;; 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)))
(native-inputs `(("cross-gcc" ,xgcc)
("cross-binutils" ,xbinutils)
,@(if (target-hurd? target)
`(("cross-mig"
,(cross-mig target
#:xgcc xgcc
#:xbinutils xbinutils)))
'())
,@(package-inputs libc) ;FIXME: static-bash
,@(package-native-inputs libc)))))
((? target-avr?)
(make-avr-libc #:xbinutils xbinutils
#:xgcc xgcc))
(else #f)))
(define* (cross-gcc-toolchain/implementation target
#:key
(base-gcc %xgcc)
(xbinutils (cross-binutils target))
(libc (cross-libc
target
#:xgcc (cross-gcc target #:xgcc base-gcc)
#:xbinutils xbinutils))
(xgcc (cross-gcc target
#:xgcc base-gcc
#:libc libc
#:xbinutils xbinutils)))
"Returns PACKAGE that contains a cross-compilation tool chain for TARGET
with XBINUTILS, XGCC and LIBC (if exists for TARGET)."
(package
;; Using PACKAGE-NAME of XGCC is avoided here as there are platforms that
;; still need a toolchain but don't have a libc (e.g. or1k-elf).
(name (string-append "gcc-cross-" target "-toolchain"))
(version (package-version xgcc))
(source #f)
(build-system trivial-build-system)
(arguments
(list #:modules '((guix build union))
#:builder
#~(begin
(use-modules (ice-9 match)
(guix build union))
(match %build-inputs
(((names . directory) ...)
(union-build #$output directory))))))
(inputs `(,xbinutils ,xgcc ,@(if libc (list libc) '())))
(home-page (package-home-page xgcc))
(synopsis
(format #f "Complete GCC tool chain for C/C++ development (~a)" target))
(description "This package provides a complete GCC cross toolchain for
C/C++ development to be installed in user profiles. This includes GCC, as
well as libc (headers and binariesl), and Binutils. GCC is the GNU Compiler
Collection.")
(license (delete-duplicates `(,(package-license xgcc)
,(package-license xbinutils)
,@(if libc
(list (package-license libc))
'()))))))
(define cross-gcc-toolchain
(memoize cross-gcc-toolchain/implementation))
;;; 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.
