Add newlib for arm_none_eabi

* Add sysroot support to the binutils
* Add a "nolibc" version of gcc, used only to build the newlib
* Add newlib recipe
* Fix "main" gcc recipe to depend on the built newlib and set the
sysroot and default include search path properly.

This recipe set can now be derived to build bare-metal cross compilers for
any other CPU supported by gcc, binutils and newlib.

sys-devel/arm_none_eabi_binutils/arm_none_eabi_binutils-2.24_2014_03_19.recipe

@@ -5,7 +5,7 @@ srcGitRev="c20a732df8f8b6d0f32c872817f3a0498a5c4761"
 SRC_URI="https://github.com/haiku/buildtools/archive/$srcGitRev.tar.gz"
 CHECKSUM_SHA256="6d3b677cd8ef777bf6fb3186a15b5122e46345595a996370325c758b3d8a4ab6"
 SRC_FILENAME="binutils-$portVersion.tar.gz"
-REVISION="5"
+REVISION="6"
 LICENSE="
 	GNU GPL v2
 	GNU LGPL v2
@@ -90,7 +90,7 @@ BUILD()
 	CFLAGS=-O2 CXXFLAGS=-O2 runConfigure "$sourceDir/configure" \
 		--exec-prefix=$installDir \
 		--includedir=$includeDir/binutils \
-		--docdir=$docDir \
+		--docdir=$docDir --with-sysroot=/system/develop/$targetArch/ \
 		--disable-nls --target=${targetArch}
 
 	make $jobArgs

sys-devel/arm_none_eabi_gcc/arm_none_eabi_gcc-4.8.2_2014_03_20.recipe

@@ -8,7 +8,7 @@ srcGitRev="c20a732df8f8b6d0f32c872817f3a0498a5c4761"
 SRC_URI="https://github.com/haiku/buildtools/archive/$srcGitRev.tar.gz"
 CHECKSUM_SHA256="6d3b677cd8ef777bf6fb3186a15b5122e46345595a996370325c758b3d8a4ab6"
 SRC_FILENAME="$portVersionedName.tar.gz"
-REVISION="1"
+REVISION="2"
 LICENSE="
 	GNU GPL v2
 	GNU LGPL v2
@@ -46,6 +46,7 @@ REQUIRES="
 	"
 BUILD_REQUIRES="
 	cmd:${targetU}_as$secondaryArchSuffix
+	${targetU}_newlib$secondaryArchSuffix
 	"
 BUILD_PREREQUIRES="
 	haiku${secondaryArchSuffix}_devel >= $haikuVersion
@@ -96,7 +97,8 @@ BUILD()
 		--docdir=$docDir --disable-nls --disable-libssp --with-gnu-ld \
 		--enable-languages=c,c++ --enable-lto --enable-frame-pointer \
 		--enable-multilib --disable-shared \
-		--without-headers --with-newlib \
+		--with-newlib --with-sysroot=/system/develop/$targetArch/ \
+		--with-native-system-header-dir=/include \
 		--with-pkgversion=$(echo $portVersion | cut -c 7-) --target=$targetArch
 
 	make $jobArgs all-gcc all-target-libgcc

sys-devel/arm_none_eabi_gcc/arm_none_eabi_gcc_nolibc-4.8.2_2014_03_20.recipe

@@ -0,0 +1,126 @@
+SUMMARY="C/C++ cross-compiler for ARM"
+DESCRIPTION="
+Compiler for ARM processors.
+"
+HOMEPAGE="http://gcc.gnu.org"
+
+srcGitRev="c20a732df8f8b6d0f32c872817f3a0498a5c4761"
+SRC_URI="https://github.com/haiku/buildtools/archive/$srcGitRev.tar.gz"
+CHECKSUM_SHA256="6d3b677cd8ef777bf6fb3186a15b5122e46345595a996370325c758b3d8a4ab6"
+SRC_FILENAME="$portVersionedName.tar.gz"
+REVISION="1"
+LICENSE="
+	GNU GPL v2
+	GNU LGPL v2
+	"
+COPYRIGHT="1988-2013 Free Software Foundation, Inc."
+
+
+ARCHITECTURES="x86 x86_64 arm"
+if [ $effectiveTargetArchitecture != x86_gcc2 ]; then
+	# x86_gcc2 is fine as primary target architecture as long as we're building
+	# for a different secondary architecture.
+	ARCHITECTURES="$ARCHITECTURES x86_gcc2"
+fi
+SECONDARY_ARCHITECTURES="x86"
+
+targetArch="arm-none-eabi"
+targetU="arm_none_eabi"
+
+PROVIDES="
+	${targetU}_gcc_nolibc$secondaryArchSuffix = $portVersion compat >= 4
+	cmd:${targetU}_c++$secondaryArchSuffix = $portVersion compat >= 4
+	cmd:${targetU}_cc$secondaryArchSuffix = $portVersion compat >= 4
+	cmd:${targetU}_cpp$secondaryArchSuffix = $portVersion compat >= 4
+	cmd:${targetU}_g++$secondaryArchSuffix = $portVersion compat >= 4
+	cmd:${targetU}_gcc$secondaryArchSuffix = $portVersion compat >= 4
+	cmd:${targetU}_gcc_4.8.2$secondaryArchSuffix = $portVersion compat >= 4
+	cmd:${targetU}_gcov$secondaryArchSuffix = $portVersion compat >= 4
+	lib:${targetU}_libstdc++$secondaryArchSuffix = $portVersion compat >= 4
+	"
+
+REQUIRES="
+	haiku$secondaryArchSuffix >= $haikuVersion
+	cmd:${targetU}_as$secondaryArchSuffix
+	lib:libstdc++$secondaryArchSuffix
+	"
+BUILD_REQUIRES="
+	cmd:${targetU}_as$secondaryArchSuffix
+	"
+BUILD_PREREQUIRES="
+	haiku${secondaryArchSuffix}_devel >= $haikuVersion
+	cmd:autoconf
+	cmd:awk
+	cmd:bison
+	cmd:find
+	cmd:flex
+	cmd:gcc$secondaryArchSuffix
+	cmd:ld$secondaryArchSuffix
+	cmd:make
+	cmd:makeinfo
+	cmd:sed
+	cmd:strip
+	cmd:tar
+	cmd:xargs
+	"
+
+SOURCE_DIR="buildtools-$srcGitRev/gcc"
+
+sourceDir=$(pwd)
+relativeInstallDir="develop/tools/${targetArch}"
+installDir="$prefix/$relativeInstallDir"
+objectsDir=$(pwd)/../${portVersionedName}-obj
+
+BUILD()
+{
+	rm -rf $objectsDir
+
+	# Touch some files generated by bison, so that bison won't run to update
+	# them. Fixes issues with newer bison versions.
+	# And while at it, touch gperf target, too (as gperf may not be installed).
+	(cd $sourceDir/gcc; touch c-parse.c c-parse.h cexp.c cp/parse.c \
+		cp/parse.h c-gperf.h)
+
+	mkdir -p $objectsDir
+	cd $objectsDir
+
+	# Setting a quoted string in an environment variable is ugly (the quotes
+	# are removed at various stages and need an absurd amount of escaping), so
+	# let's use a file and --include instead.
+	echo '#define LIBRARY_PATH_ENV "ARM_LIBRARY_PATH"' > haiku_host.h
+
+	CXXFLAGS="-O2 -include $objectsDir/haiku_host.h" \
+	CFLAGS="-O2 -U_FORTIFY_SOURCE" "$sourceDir/configure" \
+		--build=$effectiveTargetMachineTriple \
+		--prefix=$installDir --libexecdir=$installDir/lib --mandir=$manDir \
+		--docdir=$docDir --disable-nls --disable-libssp --with-gnu-ld \
+		--enable-languages=c,c++ --enable-lto --enable-frame-pointer \
+		--enable-multilib --disable-shared \
+		--without-headers --with-newlib \
+		--with-pkgversion=$(echo $portVersion | cut -c 7-) --target=$targetArch
+
+	make $jobArgs all-gcc all-target-libgcc
+}
+
+INSTALL()
+{
+	cd $objectsDir
+
+	make install-gcc install-target-libgcc
+
+	### Symlinks ##############################################
+
+	echo "Creating required symlinks"
+
+	# make all tools available via default paths
+	mkdir -p $binDir
+	for f in c++ cc cpp g++ gcc gcov; do
+		symlinkRelative -sfn $installDir/bin/$targetArch-$f $binDir
+	done
+
+	### Cleanup ###############################################
+
+	echo "Cleanup"
+	rm -rf $installDir/info
+	rm -rf $installDir/share
+}

sys-libs/arm_none_eabi_newlib/arm_none_eabi_newlib-2.1.0.recipe

@@ -0,0 +1,88 @@
+SUMMARY="A C library for embedded systems"
+DESCRIPTION="Newlib is a C library intended for use on embedded systems. It \
+is a conglomeration of several library parts, all under free software \
+licenses that make them easily usable on embedded products."
+LICENSE="
+	BSD (3-clause)
+	GNU LGPL v2.1
+"
+HOMEPAGE="http://www.sourceware.org/newlib/"
+
+# This lists copyrights only for the parts used in this ARM compilation, other
+# targets may need more or less. Please update this if making a recipe for
+# another arch.
+COPYRIGHT="
+1994-2009  Red Hat, Inc
+1981-2000 The Regents of the University of California.
+1991 by AT&T.
+1998-2001 by Lucent Technologies
+1989, 1990 Advanced Micro Devices, Inc.
+1993 by Sun Microsystems, Inc.
+1986 HEWLETT-PACKARD COMPANY
+2001 Hans-Peter Nilsson
+2001 Christopher G. Demetriou
+2002 SuperH, Inc.
+1999 Kungliga Tekniska Högskolan
+2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
+1997 by Andrey A. Chernov, Moscow, Russia.
+1997-2002 FreeBSD Project.
+1984,2000 S.L. Moshier
+1999 Citrus Project
+1998 Todd C. Miller <Todd.Miller@courtesan.com>
+1991 DJ Delorie
+1990-1999, 2000, 2001    Free Software Foundation, Inc.
+2001 Mike Barcroft <mike@FreeBSD.org>
+2009 ARM Ltd
+2008 Ed Schouten <ed@FreeBSD.org>
+"
+REVISION="1"
+
+ARCHITECTURES=""
+if [ $effectiveTargetArchitecture != x86_gcc2 ]; then
+	# x86_gcc2 is fine as primary target architecture as long as we're building
+	# for a different secondary architecture.
+	ARCHITECTURES="$ARCHITECTURES x86_gcc2"
+fi
+SECONDARY_ARCHITECTURES="x86"
+
+SRC_URI="ftp://sourceware.org/pub/newlib/newlib-2.1.0.tar.gz"
+SOURCE_DIR="newlib-$portVersion"
+CHECKSUM_SHA256="3e4d5ab9f0508942b6231b8ade4f8e5048cf92c96ed574c2bd6bd3320a599a48"
+
+targetArch="arm-none-eabi"
+targetU="arm_none_eabi"
+
+PROVIDES="
+	${targetU}_newlib$secondaryArchSuffix = $portVersion
+"
+
+BUILD_PREREQUIRES="
+	haiku${secondaryArchSuffix}_devel >= $haikuVersion
+	cmd:awk
+	cmd:gcc$secondaryArchSuffix
+	cmd:make
+	cmd:makeinfo
+	cmd:${targetU}_ld$secondaryArchSuffix
+	${tagetU}_gcc_nolibc$secondaryArchSuffix
+"
+
+sourceDir=$(pwd)
+installDir="$prefix/$relativeInstallDir/develop"
+objectsDir=$(pwd)/../${portVersionedName}-obj
+
+BUILD()
+{
+	#rm -rf $objectsDir
+	mkdir -p $objectsDir
+	cd $objectsDir
+
+	runConfigure $sourceDir/configure --target=arm-none-eabi \
+		--prefix=$installDir
+	make
+}
+
+INSTALL()
+{
+	cd $objectsDir
+	make install
+}