Add modified toolchain-binutils.eclass

1 files changed, 183 insertions, 0 deletions

diff --git a/eclass/portability.eclass b/eclass/portability.eclass
new file mode 100644
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--- /dev/null
+++ b/eclass/portability.eclass
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+# Copyright 1999-2005 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/portability.eclass,v 1.17 2010/09/24 14:29:49 vapier Exp $
+#
+# Author: Diego Pettenò <flameeyes@gentoo.org>
+#
+# This eclass is created to avoid using non-portable GNUisms inside ebuilds
+#
+# NB:  If you add anything, please comment it!
+
+# treecopy orig1 orig2 orig3 .... dest
+#
+# mimic cp --parents copy, but working on BSD userland as well
+treecopy() {
+	dest=${!#}
+	files_count=$#
+
+	while(( $# > 1 )); do
+		dirstruct=$(dirname "$1")
+		mkdir -p "${dest}/${dirstruct}"
+		cp -pPR "$1" "${dest}/${dirstruct}"
+
+		shift
+	done
+}
+
+# seq min max
+#
+# compatibility function that mimes seq command if not available
+seq() {
+	# First try `seq`
+	local p=$(type -P seq)
+	if [[ -n ${p} ]] ; then
+		"${p}" "$@"
+		return $?
+	fi
+
+	case $# in
+		1) min=1  max=$1 step=1  ;;
+		2) min=$1 max=$2 step=1  ;;
+		3) min=$1 max=$3 step=$2 ;;
+		*) die "seq called with wrong number of arguments" ;;
+	esac
+
+	# Then try `jot`
+	p=$(type -P jot)
+	if [[ -n ${p} ]] ; then
+		local reps
+		# BSD userland
+		if [[ ${step} != 0 ]] ; then
+			reps=$(( (max - min) / step + 1 ))
+		else
+			reps=0
+		fi
+
+		jot $reps $min $max $step
+		return $?
+	fi
+
+	# Screw it, do the output ourselves
+	while :; do
+		[[ $max < $min && $step > 0 ]] && break
+		[[ $min < $max && $step < 0 ]] && break
+		echo $min
+		: $(( min += step ))
+	done
+	return 0
+}
+
+# Gets the linker flag to link to dlopen() function
+dlopen_lib() {
+	# - Solaris needs nothing
+	# - Darwin needs nothing
+	# - *BSD needs nothing
+	# - Linux needs -ldl (glibc and uclibc)
+	# - Interix needs -ldl
+	case "${CHOST}" in
+		*-linux-gnu*|*-linux-uclibc|*-interix*)
+			echo "-ldl"
+		;;
+	esac
+}
+
+# Gets the home directory for the specified user
+# it's a wrap around egetent as the position of the home directory in the line
+# varies depending on the os used.
+#
+# To use that, inherit eutils, not portability!
+egethome() {
+	ent=$(egetent passwd $1)
+
+	case ${CHOST} in
+	*-darwin*|*-freebsd*|*-dragonfly*)
+		# Darwin, OSX, FreeBSD and DragonFly use position 9 to store homedir
+		echo ${ent} | cut -d: -f9
+		;;
+	*)
+		# Linux, NetBSD and OpenBSD use position 6 instead
+		echo ${ent} | cut -d: -f6
+		;;
+	esac
+}
+
+# Gets the shell for the specified user
+# it's a wrap around egetent as the position of the home directory in the line
+# varies depending on the os used.
+#
+# To use that, inherit eutils, not portability!
+egetshell() {
+	ent=$(egetent passwd "$1")
+
+	case ${CHOST} in
+	*-darwin*|*-freebsd*|*-dragonfly*)
+		# Darwin, OSX, FreeBSD and DragonFly use position 9 to store homedir
+		echo ${ent} | cut -d: -f10
+		;;
+	*)
+		# Linux, NetBSD and OpenBSD use position 6 instead
+		echo ${ent} cut -d: -f7
+		;;
+	esac
+}
+
+# Returns true if specified user has a shell that precludes logins
+# on whichever operating system.
+is-login-disabled() {
+	shell=$(egetshell "$1")
+
+	case ${shell} in
+		/bin/false|/usr/bin/false|/sbin/nologin|/usr/sbin/nologin)
+			return 0 ;;
+		*)
+			return 1 ;;
+	esac
+}
+
+# Gets the name of the BSD-ish make command (pmake from NetBSD)
+#
+# This will return make (provided by system packages) for BSD userlands,
+# or bsdmake for Darwin userlands and pmake for the rest of userlands,
+# both of which are provided by sys-devel/pmake package.
+#
+# Note: the bsdmake for Darwin userland is with compatibility with MacOSX
+# default name.
+get_bmake() {
+	if [[ ${USERLAND} == *BSD ]]; then
+		echo make
+	elif [[ ${USERLAND} == "Darwin" ]]; then
+		echo bsdmake
+	else
+		echo pmake
+	fi
+}
+
+# Portable method of getting mount names and points.
+# Returns as "point node fs options"
+# Remember to convert 040 back to a space.
+get_mounts() {
+	local point= node= fs= opts= foo=
+
+	# Linux has /proc/mounts which should always exist
+	if [[ $(uname -s) == "Linux" ]] ; then
+		while read node point fs opts foo ; do
+			echo "${point} ${node} ${fs} ${opts}"
+		done < /proc/mounts
+		return
+	fi
+
+	# OK, pray we have a -p option that outputs mounts in fstab format
+	# using tabs as the seperator.
+	# Then pray that there are no tabs in the either.
+	# Currently only FreeBSD supports this and the other BSDs will
+	# have to be patched.
+	# Athough the BSD's may support /proc, they do NOT put \040 in place
+	# of the spaces and we should not force a /proc either.
+	local IFS=$'\t'
+	LC_ALL=C mount -p | while read node point fs foo ; do
+		opts=${fs#* }
+		fs=${fs%% *}
+		echo "${point// /\040} ${node// /\040} ${fs%% *} ${opts// /\040}"
+	done
+}
+