From 827d28914a16ef2d10ebdad4695efdb02ace07fb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= Date: Wed, 27 Feb 2013 09:38:11 +0100 Subject: [PATCH] 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". --- Makefile.am | 2 + gnu/packages/base.scm | 4 +- gnu/packages/bootstrap.scm | 1 + gnu/packages/cross-base.scm | 243 ++++++++++++++++++ .../gcc-cross-environment-variables.patch | 24 ++ 5 files changed, 272 insertions(+), 2 deletions(-) create mode 100644 gnu/packages/cross-base.scm create mode 100644 gnu/packages/patches/gcc-cross-environment-variables.patch diff --git a/Makefile.am b/Makefile.am index bed4d06ec0..d87e6e0572 100644 --- a/Makefile.am +++ b/Makefile.am @@ -66,6 +66,7 @@ MODULES = \ gnu/packages/check.scm \ gnu/packages/compression.scm \ gnu/packages/cpio.scm \ + gnu/packages/cross-base.scm \ gnu/packages/curl.scm \ gnu/packages/cyrus-sasl.scm \ gnu/packages/dejagnu.scm \ @@ -185,6 +186,7 @@ dist_patch_DATA = \ gnu/packages/patches/flac-fix-memcmp-not-declared.patch \ gnu/packages/patches/flex-bison-tests.patch \ gnu/packages/patches/gawk-shell.patch \ + gnu/packages/patches/gcc-cross-environment-variables.patch \ gnu/packages/patches/gettext-gets-undeclared.patch \ gnu/packages/patches/glib-tests-desktop.patch \ gnu/packages/patches/glib-tests-homedir.patch \ diff --git a/gnu/packages/base.scm b/gnu/packages/base.scm index 5c39ec3db8..5aeb050863 100644 --- a/gnu/packages/base.scm +++ b/gnu/packages/base.scm @@ -412,8 +412,8 @@ BFD (Binary File Descriptor) library, `gprof', `nm', `strip', etc.") #:make-flags (let ((libc (assoc-ref %build-inputs "libc"))) `(,@(if libc - (list (string-append "LDFLAGS_FOR_BUILD=" - "-L" libc "/lib " + (list (string-append "LDFLAGS_FOR_TARGET=" + "-B" libc "/lib " "-Wl,-dynamic-linker " "-Wl," libc ,(glibc-dynamic-linker))) diff --git a/gnu/packages/bootstrap.scm b/gnu/packages/bootstrap.scm index 22ee98879a..809eb84295 100644 --- a/gnu/packages/bootstrap.scm +++ b/gnu/packages/bootstrap.scm @@ -134,6 +134,7 @@ check whether everything is alright." "Return the name of Glibc's dynamic linker for SYSTEM." (cond ((string=? system "x86_64-linux") "/lib/ld-linux-x86-64.so.2") ((string=? system "i686-linux") "/lib/ld-linux.so.2") + ((string=? system "mips64el-linux") "/lib/ld.so.1") (else (error "dynamic linker name not known for this system" system)))) diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm new file mode 100644 index 0000000000..69dc9f5b0b --- /dev/null +++ b/gnu/packages/cross-base.scm @@ -0,0 +1,243 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2013 Ludovic Courtès +;;; +;;; 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 . + +(define-module (gnu packages cross-base) + #:use-module (guix licenses) + #:use-module (gnu packages) + #: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)) + +(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 + (cut cross binutils <>)) + +(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 + ;; + ;; 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)))))) + +(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))))) + + +;;; +;;; 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)))) diff --git a/gnu/packages/patches/gcc-cross-environment-variables.patch b/gnu/packages/patches/gcc-cross-environment-variables.patch new file mode 100644 index 0000000000..30a07ec3db --- /dev/null +++ b/gnu/packages/patches/gcc-cross-environment-variables.patch @@ -0,0 +1,24 @@ +Search path environment variables for cross-compilers. See the discussion +at . + +--- gcc-4.7.2/gcc/incpath.c 2012-01-27 00:34:58.000000000 +0100 ++++ gcc-4.7.2/gcc/incpath.c 2013-02-12 10:11:27.000000000 +0100 +@@ -452,7 +452,7 @@ register_include_chains (cpp_reader *pfi + + /* CPATH and language-dependent environment variables may add to the + include chain. */ +- add_env_var_paths ("CPATH", BRACKET); ++ add_env_var_paths ("CROSS_CPATH", BRACKET); + add_env_var_paths (lang_env_vars[idx], SYSTEM); + + target_c_incpath.extra_pre_includes (sysroot, iprefix, stdinc); + +--- gcc-4.7.2/gcc/system.h 2012-02-17 00:16:28.000000000 +0100 ++++ gcc-4.7.2/gcc/system.h 2013-02-12 10:22:17.000000000 +0100 +@@ -1023,4 +1023,6 @@ helper_const_non_const_cast (const char + #define DEBUG_VARIABLE + #endif + ++#define LIBRARY_PATH_ENV "CROSS_LIBRARY_PATH" ++ + #endif /* ! GCC_SYSTEM_H */