gnu: Add cross tool chain.
* gnu/packages/cross-base.scm: New file. * gnu/packages/patches/gcc-cross-environment-variables.patch: New file. * Makefile.am (MODULES): Add cross-base.scm. (dist_patch_DATA): Add gcc-cross-environment-variables.patch. * gnu/packages/base.scm (gcc-4.7): Use `LDFLAGS_FOR_TARGET' instead of `LDFLAGS_FOR_BUILD', and use `-B' instead of `-L'. * gnu/packages/bootstrap.scm (glibc-dynamic-linker): Add case for "mips64el-linux".
This commit is contained in:
Ludovic Courtès
parent
aaf4cb20ad
commit
827d28914a
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@ -66,6 +66,7 @@ MODULES = \
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gnu/packages/check.scm \
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gnu/packages/compression.scm \
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gnu/packages/cpio.scm \
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gnu/packages/cross-base.scm \
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gnu/packages/curl.scm \
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gnu/packages/cyrus-sasl.scm \
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gnu/packages/dejagnu.scm \
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@ -185,6 +186,7 @@ dist_patch_DATA = \
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gnu/packages/patches/flac-fix-memcmp-not-declared.patch \
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gnu/packages/patches/flex-bison-tests.patch \
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gnu/packages/patches/gawk-shell.patch \
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gnu/packages/patches/gcc-cross-environment-variables.patch \
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gnu/packages/patches/gettext-gets-undeclared.patch \
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gnu/packages/patches/glib-tests-desktop.patch \
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gnu/packages/patches/glib-tests-homedir.patch \
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@ -412,8 +412,8 @@ BFD (Binary File Descriptor) library, `gprof', `nm', `strip', etc.")
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#:make-flags
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(let ((libc (assoc-ref %build-inputs "libc")))
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`(,@(if libc
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(list (string-append "LDFLAGS_FOR_BUILD="
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"-L" libc "/lib "
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(list (string-append "LDFLAGS_FOR_TARGET="
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"-B" libc "/lib "
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"-Wl,-dynamic-linker "
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"-Wl," libc
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,(glibc-dynamic-linker)))
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@ -134,6 +134,7 @@ check whether everything is alright."
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"Return the name of Glibc's dynamic linker for SYSTEM."
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(cond ((string=? system "x86_64-linux") "/lib/ld-linux-x86-64.so.2")
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((string=? system "i686-linux") "/lib/ld-linux.so.2")
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((string=? system "mips64el-linux") "/lib/ld.so.1")
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(else (error "dynamic linker name not known for this system"
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system))))
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@ -0,0 +1,243 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu packages cross-base)
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#:use-module (guix licenses)
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#:use-module (gnu packages)
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#:use-module (gnu packages base)
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#:use-module (gnu packages linux)
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#:use-module (guix packages)
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#:use-module (guix download)
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#:use-module (guix utils)
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#:use-module (guix build-system gnu)
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#:use-module (guix build-system trivial)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (ice-9 match))
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(define (cross p target)
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(package (inherit p)
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(location (source-properties->location (current-source-location)))
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(name (string-append (package-name p) "-cross-" target))
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(arguments
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(substitute-keyword-arguments (package-arguments p)
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((#:configure-flags flags)
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`(cons ,(string-append "--target=" target)
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,flags))))))
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(define cross-binutils
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(cut cross binutils <>))
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(define* (cross-gcc target
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#:optional (xbinutils (cross-binutils target)) libc)
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"Return a cross-compiler for TARGET, where TARGET is a GNU triplet. Use
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XBINUTILS as the associated cross-Binutils. If LIBC is false, then build a
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GCC that does not target a libc; otherwise, target that libc."
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(define args
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;; Get the arguments as if we were building for TARGET. In particular, we
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;; want `glibc-dynamic-linker' to return the right thing.
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(parameterize ((%current-system (gnu-triplet->nix-system target)))
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(package-arguments gcc-4.7)))
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(package (inherit gcc-4.7)
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(name (string-append "gcc-cross-"
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(if libc "" "sans-libc-")
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target))
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(arguments
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`(#:implicit-inputs? #f
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#:modules ((guix build gnu-build-system)
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(guix build utils)
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(ice-9 regex)
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(srfi srfi-1)
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(srfi srfi-26))
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#:patches (list (assoc-ref %build-inputs "patch/cross-env-vars"))
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,@(substitute-keyword-arguments args
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((#:configure-flags flags)
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`(append (list ,(string-append "--target=" target)
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,@(if libc
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'()
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`( ;; Disable features not needed at this stage.
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"--disable-shared" "--enable-static"
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;; Disable C++ because libstdc++'s
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;; configure script otherwise fails with
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;; "Link tests are not allowed after
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;; GCC_NO_EXECUTABLES."
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"--enable-languages=c"
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"--disable-threads" ; libgcc, would need libc
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"--disable-libmudflap"
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"--disable-libgomp"
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"--disable-libssp"
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"--disable-libquadmath"
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"--disable-decimal-float" ; would need libc
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)))
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,(if libc
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flags
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`(remove (cut string-match "--enable-languages.*" <>)
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,flags))))
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((#:make-flags flags)
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(if libc
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`(let ((libc (assoc-ref %build-inputs "libc")))
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;; FLAGS_FOR_TARGET are needed for the target libraries to
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;; receive the -Bxxx for the startfiles.
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(cons (string-append "FLAGS_FOR_TARGET=-B" libc "/lib")
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,flags))
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flags))
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((#:phases phases)
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(let ((phases
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`(alist-cons-after
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'install 'make-cross-binutils-visible
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(lambda* (#:key outputs inputs #:allow-other-keys)
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(let* ((out (assoc-ref outputs "out"))
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(libexec (string-append out "/libexec/gcc/"
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,target))
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(binutils (string-append
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(assoc-ref inputs "binutils-cross")
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"/bin/" ,target "-")))
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(for-each (lambda (file)
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(symlink (string-append binutils file)
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(string-append libexec "/"
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file)))
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'("as" "ld" "nm"))
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#t))
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,phases)))
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(if libc
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`(alist-cons-before
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'configure 'set-cross-path
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(lambda* (#:key inputs #:allow-other-keys)
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;; Add the cross Linux headers to CROSS_CPATH, and remove
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;; them from CPATH.
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(let ((libc (assoc-ref inputs "libc"))
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(linux (assoc-ref inputs
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"libc/cross-linux-headers")))
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(define (cross? x)
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;; Return #t if X is a cross-libc or cross Linux.
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(or (string-prefix? libc x)
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(string-prefix? linux x)))
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(setenv "CROSS_CPATH"
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(string-append libc "/include:"
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linux "/include"))
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(setenv "CROSS_LIBRARY_PATH"
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(string-append libc "/lib"))
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(let ((cpath (search-path-as-string->list
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(getenv "CPATH")))
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(libpath (search-path-as-string->list
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(getenv "LIBRARY_PATH"))))
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(setenv "CPATH"
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(list->search-path-as-string
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(remove cross? cpath) ":"))
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(setenv "LIBRARY_PATH"
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(list->search-path-as-string
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(remove cross? libpath) ":"))
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#t)))
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,phases)
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phases)))
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((#:strip-binaries? _)
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;; Disable stripping as this can break binaries, with object files
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;; of libgcc.a showing up as having an unknown architecture. See
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;; <http://lists.fedoraproject.org/pipermail/arm/2010-August/000663.html>
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;; for instance.
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#f))))
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(inputs
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`(("patch/cross-env-vars"
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,(search-patch "gcc-cross-environment-variables.patch"))
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("binutils-cross" ,xbinutils)
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;; Call it differently so that the builder can check whether the "libc"
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;; input is #f.
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("libc-native" ,@(assoc-ref %final-inputs "libc"))
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;; Remaining inputs.
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,@(let ((inputs (append (package-inputs gcc-4.7)
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(alist-delete "libc" %final-inputs))))
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(if libc
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`(("libc" ,libc)
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,@inputs)
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inputs))))))
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(define* (cross-libc target
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#:optional
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(xgcc (cross-gcc target))
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(xbinutils (cross-binutils target)))
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"Return a libc cross-built for TARGET, a GNU triplet. Use XGCC and
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XBINUTILS and the cross tool chain."
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(define xlinux-headers
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(package (inherit linux-libre-headers)
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(name (string-append (package-name linux-libre-headers)
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"-cross-" target))
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(arguments
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(substitute-keyword-arguments (package-arguments linux-libre-headers)
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((#:phases phases)
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`(alist-replace
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'build
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(lambda _
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(setenv "ARCH" ,(system->linux-architecture target))
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(format #t "`ARCH' set to `~a' (cross compiling)~%" (getenv "ARCH"))
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(and (zero? (system* "make" "defconfig"))
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(zero? (system* "make" "mrproper" "headers_check"))))
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,phases))))
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(inputs `(("cross-gcc" ,xgcc)
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("cross-binutils" ,xbinutils)
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,@(package-inputs linux-libre-headers)))))
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(package (inherit glibc)
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(name (string-append "glibc-cross-" target))
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(arguments
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(substitute-keyword-arguments
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`(#:strip-binaries? #f ; disable stripping (see above)
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,@(package-arguments glibc))
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((#:configure-flags flags)
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`(cons ,(string-append "--host=" target)
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,flags))
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((#:phases phases)
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`(alist-cons-before
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'configure 'set-cross-linux-headers-path
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(lambda* (#:key inputs #:allow-other-keys)
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(let ((linux (assoc-ref inputs "cross-linux-headers")))
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(setenv "CROSS_CPATH"
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(string-append linux "/include"))
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#t))
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,phases))))
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(propagated-inputs `(("cross-linux-headers" ,xlinux-headers)))
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(inputs `(("cross-gcc" ,xgcc)
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("cross-binutils" ,xbinutils)
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,@(package-inputs glibc)))))
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;;;
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;;; Concrete cross toolchains.
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;;;
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(define-public xgcc-mips64el
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(let ((triplet "mips64el-linux-gnu"))
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(cross-gcc triplet
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(cross-binutils triplet)
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(cross-libc triplet))))
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;; (define-public xgcc-armel
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;; (let ((triplet "armel-linux-gnueabi"))
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;; (cross-gcc triplet
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;; (cross-binutils triplet)
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;; (cross-libc triplet))))
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@ -0,0 +1,24 @@
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Search path environment variables for cross-compilers. See the discussion
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at <http://gcc.gnu.org/ml/gcc/2013-02/msg00124.html>.
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--- gcc-4.7.2/gcc/incpath.c 2012-01-27 00:34:58.000000000 +0100
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+++ gcc-4.7.2/gcc/incpath.c 2013-02-12 10:11:27.000000000 +0100
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@@ -452,7 +452,7 @@ register_include_chains (cpp_reader *pfi
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/* CPATH and language-dependent environment variables may add to the
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include chain. */
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- add_env_var_paths ("CPATH", BRACKET);
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+ add_env_var_paths ("CROSS_CPATH", BRACKET);
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add_env_var_paths (lang_env_vars[idx], SYSTEM);
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target_c_incpath.extra_pre_includes (sysroot, iprefix, stdinc);
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--- gcc-4.7.2/gcc/system.h 2012-02-17 00:16:28.000000000 +0100
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+++ gcc-4.7.2/gcc/system.h 2013-02-12 10:22:17.000000000 +0100
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@@ -1023,4 +1023,6 @@ helper_const_non_const_cast (const char
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#define DEBUG_VARIABLE
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#endif
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+#define LIBRARY_PATH_ENV "CROSS_LIBRARY_PATH"
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+
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#endif /* ! GCC_SYSTEM_H */
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