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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; 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 embedded)
#:use-module (guix utils)
#:use-module (guix packages)
#:use-module (guix download)
#:use-module (guix svn-download)
#:use-module (guix git-download)
#:use-module ((guix licenses) #:prefix license:)
#:use-module (guix build-system gnu)
#:use-module (gnu packages)
#:use-module (gnu packages cross-base)
#:use-module (gnu packages flex)
#:use-module (gnu packages perl)
#:use-module (gnu packages texinfo))
;; We must not use the released GCC sources here, because the cross-compiler
;; does not produce working binaries. Instead we take the very same SVN
;; revision from the branch that is used for a release of the "GCC ARM
;; embedded" project on launchpad.
;; See https://launchpadlibrarian.net/218827644/release.txt
(define-public gcc-arm-none-eabi-4.9
(let ((xgcc (cross-gcc "arm-none-eabi"
(cross-binutils "arm-none-eabi")))
(revision "1")
(svn-revision 227977))
(package (inherit xgcc)
(version (string-append (package-version xgcc) "-"
revision "." (number->string svn-revision)))
(source
(origin
(method svn-fetch)
(uri (svn-reference
(url "svn://gcc.gnu.org/svn/gcc/branches/ARM/embedded-4_9-branch/")
(revision svn-revision)))
(file-name (string-append "gcc-arm-embedded-" version "-checkout"))
(sha256
(base32
"113r98kygy8rrjfv2pd3z6zlfzbj543pq7xyq8bgh72c608mmsbr"))
(patches (origin-patches (package-source xgcc)))))
(native-inputs
`(("flex" ,flex)
,@(package-native-inputs xgcc)))
(arguments
(substitute-keyword-arguments (package-arguments xgcc)
((#:phases phases)
`(modify-phases ,phases
(add-after 'unpack 'fix-genmultilib
(lambda _
(substitute* "gcc/genmultilib"
(("#!/bin/sh") (string-append "#!" (which "sh"))))
#t))))
((#:configure-flags flags)
;; The configure flags are largely identical to the flags used by the
;; "GCC ARM embedded" project.
`(append (list "--enable-multilib"
"--with-newlib"
"--with-multilib-list=armv6-m,armv7-m,armv7e-m"
"--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm"
"--enable-plugins"
"--disable-decimal-float"
"--disable-libffi"
"--disable-libgomp"
"--disable-libmudflap"
"--disable-libquadmath"
"--disable-libssp"
"--disable-libstdcxx-pch"
"--disable-nls"
"--disable-shared"
"--disable-threads"
"--disable-tls")
(delete "--disable-multilib" ,flags)))))
(native-search-paths
(list (search-path-specification
(variable "CROSS_C_INCLUDE_PATH")
(files '("arm-none-eabi/include")))
(search-path-specification
(variable "CROSS_CPLUS_INCLUDE_PATH")
(files '("arm-none-eabi/include")))
(search-path-specification
(variable "CROSS_LIBRARY_PATH")
(files '("arm-none-eabi/lib"))))))))
(define-public newlib-arm-none-eabi
(package
(name "newlib")
(version "2.4.0")
(source (origin
(method url-fetch)
(uri (string-append "ftp://sourceware.org/pub/newlib/newlib-"
version ".tar.gz"))
(sha256
(base32
"01i7qllwicf05vsvh39qj7qp5fdifpvvky0x95hjq39mbqiksnsl"))))
(build-system gnu-build-system)
(arguments
`(#:out-of-source? #t
;; The configure flags are identical to the flags used by the "GCC ARM
;; embedded" project.
#:configure-flags '("--target=arm-none-eabi"
"--enable-newlib-io-long-long"
"--enable-newlib-register-fini"
"--disable-newlib-supplied-syscalls"
"--disable-nls")
#:phases
(modify-phases %standard-phases
(add-after 'unpack 'fix-references-to-/bin/sh
(lambda _
(substitute* '("libgloss/arm/cpu-init/Makefile.in"
"libgloss/arm/Makefile.in"
"libgloss/libnosys/Makefile.in"
"libgloss/Makefile.in")
(("/bin/sh") (which "sh")))
#t)))))
(native-inputs
`(("xbinutils" ,(cross-binutils "arm-none-eabi"))
("xgcc" ,gcc-arm-none-eabi-4.9)
("texinfo" ,texinfo)))
(home-page "http://www.sourceware.org/newlib/")
(synopsis "C library for use on embedded systems")
(description "Newlib is a C library intended for use on embedded
systems. It is a conglomeration of several library parts that are easily
usable on embedded products.")
(license (license:non-copyleft
"https://www.sourceware.org/newlib/COPYING.NEWLIB"))))
(define-public newlib-nano-arm-none-eabi
(package (inherit newlib-arm-none-eabi)
(name "newlib-nano")
(arguments
(substitute-keyword-arguments (package-arguments newlib-arm-none-eabi)
;; The configure flags are identical to the flags used by the "GCC ARM
;; embedded" project. They optimize newlib for use on small embedded
;; systems with limited memory.
((#:configure-flags flags)
''("--target=arm-none-eabi"
"--enable-multilib"
"--disable-newlib-supplied-syscalls"
"--enable-newlib-reent-small"
"--disable-newlib-fvwrite-in-streamio"
"--disable-newlib-fseek-optimization"
"--disable-newlib-wide-orient"
"--enable-newlib-nano-malloc"
"--disable-newlib-unbuf-stream-opt"
"--enable-lite-exit"
"--enable-newlib-global-atexit"
"--enable-newlib-nano-formatted-io"
"--disable-nls"))))
(synopsis "Newlib variant for small systems with limited memory")))
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