[gentoo-kernel] kernel-2.eclass: Easier way to use genpatches in ebuilds

[gentoo-kernel] kernel-2.eclass: Easier way to use genpatches in ebuilds

[Daniel Drake]

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This provides an easier way for kernel-2 users to apply genpatches.

In the attached ebuild example, ck-sources-2.6.12_p2.ebuild, all that is
needed is:

K_WANT_GENPATCHES="base"
K_GENPATCHES_VER="1"

The above will translate to genpatches-2.6.12-1.base.tar.bz2
The only other thing you need to do is add $GENPATCHES_URI to SRC_URI and then
you will get genpatches applied with unipatch.

Any comments?

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Index: kernel-2.eclass
===================================================================
RCS file: /var/cvsroot/gentoo-x86/eclass/kernel-2.eclass,v
retrieving revision 1.125
diff -u -B -p -r1.125 kernel-2.eclass
--- kernel-2.eclass	15 May 2005 20:30:04 -0000	1.125
+++ kernel-2.eclass	22 Jun 2005 12:49:35 -0000
@@ -36,6 +36,11 @@
 #
 # K_DEFCONFIG			- Allow specifying a different defconfig target.
 #						  If length zero, defaults to "defconfig".
+# K_WANT_GENPATCHES		- Apply genpatches to kernel source. Provide any
+# 						  combination of "base" and "extras"
+# K_GENPATCHES_VER		- The version of the genpatches tarball(s) to apply.
+#						  A value of "5" would apply genpatches-2.6.12-5 to
+#						  my-sources-2.6.12.ebuild
 
 # H_SUPPORTEDARCH		- this should be a space separated list of ARCH's which
 #						  can be supported by the headers ebuild
@@ -71,6 +76,17 @@ LICENSE="GPL-2"
 
 #Eclass functions only from here onwards ...
 #==============================================================
+handle_genpatches() {
+	local tarball
+	[[ -z ${K_WANT_GENPATCHES} || -z ${K_GENPATCHES_VER} ]] && return -1
+
+	for i in ${K_WANT_GENPATCHES} ; do
+		tarball="genpatches-${OKV}-${K_GENPATCHES_VER}.${i}.tar.bz2"
+		GENPATCHES_URI="${GENPATCHES_URI} mirror://gentoo/${tarball}"
+		UNIPATCH_LIST_GENPATCHES="${UNIPATCH_LIST_GENPATCHES} ${DISTDIR}/${tarball}"
+	done
+}
+
 detect_version() {
 	# this function will detect and set
 	# - OKV: Original Kernel Version (2.6.0/2.6.0-test11)
@@ -185,6 +201,8 @@ detect_version() {
 					mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/linux-${OKV}.tar.bz2"
 		UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${RELEASE/-bk*}.bz2 ${DISTDIR}/patch-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${RELEASE}.bz2"
 	fi
+
+	handle_genpatches
 }
 
 kernel_is() {
@@ -865,8 +883,8 @@ headers___fix() {
 kernel-2_src_unpack() {
 	universal_unpack
 
-	[[ -n ${UNIPATCH_LIST} ]] || [[ -n ${UNIPATCH_LIST_DEFAULT} ]] && \
-		unipatch "${UNIPATCH_LIST_DEFAULT} ${UNIPATCH_LIST}"
+	[[ -n ${UNIPATCH_LIST} || -n ${UNIPATCH_LIST_DEFAULT} || -n ${UNIPATCH_LIST_GENPATCHES} ]] && \
+		unipatch "${UNIPATCH_LIST_DEFAULT} ${UNIPATCH_LIST_GENPATCHES} ${UNIPATCH_LIST}"
 
 	[[ -z ${K_NOSETEXTRAVERSION} ]] && unpack_set_extraversion
 	unpack_fix_docbook

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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/sys-kernel/ck-sources/ck-sources-2.6.11_p10.ebuild,v 1.1 2005/06/13 02:07:56 marineam Exp $

K_PREPATCHED="yes"
UNIPATCH_STRICTORDER="yes"
K_NOUSENAME="yes"
K_WANT_GENPATCHES="base"
K_GENPATCHES_VER="1"
ETYPE="sources"
inherit kernel-2
detect_version

# A few hacks to set ck version via _p instead of -r
MY_P=${P/_p*/}
MY_PR=${PR/r/-r}
MY_PR=${MY_PR/-r0/}
EXTRAVERSION=-ck${PV/*_p/}${MY_PR}
KV_FULL=${OKV}${EXTRAVERSION}
KV_CK=${KV_FULL/-r*/}
detect_version

IUSE="ck-server"
if use ck-server; then
	CK_PATCH="patch-${KV_CK}-server.bz2"
else
	CK_PATCH="patch-${KV_CK}.bz2"
fi

UNIPATCH_LIST="${DISTDIR}/${CK_PATCH}"

DESCRIPTION="Full sources for the Stock Linux kernel and Con Kolivas's high performance patchset"
HOMEPAGE="http://members.optusnet.com.au/ckolivas/kernel/"
SRC_URI="${KERNEL_URI} ${GENPATCHES_URI}
	ck-server? ( http://ck.kolivas.org/patches/2.6/${OKV}/${KV_CK}/patch-${KV_CK}-server.bz2 )
	!ck-server? ( http://ck.kolivas.org/patches/2.6/${OKV}/${KV_CK}/patch-${KV_CK}.bz2 )"

KEYWORDS="~x86 ~amd64"

pkg_postinst() {
	postinst_sources

	einfo "The ck patchset is tuned for desktop usage."
	einfo "To better tune the kernel for server applications add"
	einfo "ck-server to your use flags and reemerge ck-sources"
}

Re: [gentoo-kernel] kernel-2.eclass: Easier way to use genpatches in ebuilds

[John Mylchreest]

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This approach is fine with me, anything which makes life easier.
I have attached the kernel-2 from my overlay which as per bug #96510
If you agree with the idea, (its been tested) then please feel free to
merge and commit.

if you don't like the prerm stuff, just ditch it and apply to the
current stable.

Thanks for the work.
- John


On Wed, 2005-06-22 at 13:52 +0100, Daniel Drake wrote:
> This provides an easier way for kernel-2 users to apply genpatches.
> 
> In the attached ebuild example, ck-sources-2.6.12_p2.ebuild, all that is
> needed is:
> 
> K_WANT_GENPATCHES="base"
> K_GENPATCHES_VER="1"
> 
> The above will translate to genpatches-2.6.12-1.base.tar.bz2
> The only other thing you need to do is add $GENPATCHES_URI to SRC_URI and then
> you will get genpatches applied with unipatch.
> 
> Any comments?
> plain text document attachment (ck-sources-2.6.12_p2.ebuild)
> # Copyright 1999-2005 Gentoo Foundation
> # Distributed under the terms of the GNU General Public License v2
> # $Header: /var/cvsroot/gentoo-x86/sys-kernel/ck-sources/ck-sources-2.6.11_p10.ebuild,v 1.1 2005/06/13 02:07:56 marineam Exp $
> 
> K_PREPATCHED="yes"
> UNIPATCH_STRICTORDER="yes"
> K_NOUSENAME="yes"
> K_WANT_GENPATCHES="base"
> K_GENPATCHES_VER="1"
> ETYPE="sources"
> inherit kernel-2
> detect_version
> 
> # A few hacks to set ck version via _p instead of -r
> MY_P=${P/_p*/}
> MY_PR=${PR/r/-r}
> MY_PR=${MY_PR/-r0/}
> EXTRAVERSION=-ck${PV/*_p/}${MY_PR}
> KV_FULL=${OKV}${EXTRAVERSION}
> KV_CK=${KV_FULL/-r*/}
> detect_version
> 
> IUSE="ck-server"
> if use ck-server; then
> 	CK_PATCH="patch-${KV_CK}-server.bz2"
> else
> 	CK_PATCH="patch-${KV_CK}.bz2"
> fi
> 
> UNIPATCH_LIST="${DISTDIR}/${CK_PATCH}"
> 
> DESCRIPTION="Full sources for the Stock Linux kernel and Con Kolivas's high performance patchset"
> HOMEPAGE="http://members.optusnet.com.au/ckolivas/kernel/"
> SRC_URI="${KERNEL_URI} ${GENPATCHES_URI}
> 	ck-server? ( http://ck.kolivas.org/patches/2.6/${OKV}/${KV_CK}/patch-${KV_CK}-server.bz2 )
> 	!ck-server? ( http://ck.kolivas.org/patches/2.6/${OKV}/${KV_CK}/patch-${KV_CK}.bz2 )"
> 
> KEYWORDS="~x86 ~amd64"
> 
> pkg_postinst() {
> 	postinst_sources
> 
> 	einfo "The ck patchset is tuned for desktop usage."
> 	einfo "To better tune the kernel for server applications add"
> 	einfo "ck-server to your use flags and reemerge ck-sources"
> }
> 

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Re: [gentoo-kernel] kernel-2.eclass: Easier way to use genpatches in ebuilds

[Henrik Brix Andersen]

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On Wed, 2005-06-22 at 13:52 +0100, Daniel Drake wrote:
> This provides an easier way for kernel-2 users to apply genpatches.
> 
> In the attached ebuild example, ck-sources-2.6.12_p2.ebuild, all that is
> needed is:
> 
> K_WANT_GENPATCHES="base"
> K_GENPATCHES_VER="1"
> 
> The above will translate to genpatches-2.6.12-1.base.tar.bz2
> The only other thing you need to do is add $GENPATCHES_URI to SRC_URI and then
> you will get genpatches applied with unipatch.
> 
> Any comments?

Anything which simplifies the process of applying genpatches is most
welcome in my book :)

Sincerely,
Brix
-- 
Henrik Brix Andersen <brix@gentoo.org>
Gentoo Metadistribution | Mobile computing herd

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Re: [gentoo-kernel] kernel-2.eclass: Easier way to use genpatches in ebuilds

[John Mylchreest]

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And the eclass I was supposed to attach :)

On Wed, 2005-06-22 at 17:24 +0100, John Mylchreest wrote:
> This approach is fine with me, anything which makes life easier.
> I have attached the kernel-2 from my overlay which as per bug #96510
> If you agree with the idea, (its been tested) then please feel free to
> merge and commit.
> 
> if you don't like the prerm stuff, just ditch it and apply to the
> current stable.
> 
> Thanks for the work.
> - John
> 
> 
> On Wed, 2005-06-22 at 13:52 +0100, Daniel Drake wrote:
> > This provides an easier way for kernel-2 users to apply genpatches.
> > 
> > In the attached ebuild example, ck-sources-2.6.12_p2.ebuild, all that is
> > needed is:
> > 
> > K_WANT_GENPATCHES="base"
> > K_GENPATCHES_VER="1"
> > 
> > The above will translate to genpatches-2.6.12-1.base.tar.bz2
> > The only other thing you need to do is add $GENPATCHES_URI to SRC_URI and then
> > you will get genpatches applied with unipatch.
> > 
> > Any comments?
> > plain text document attachment (ck-sources-2.6.12_p2.ebuild)
> > # Copyright 1999-2005 Gentoo Foundation
> > # Distributed under the terms of the GNU General Public License v2
> > # $Header: /var/cvsroot/gentoo-x86/sys-kernel/ck-sources/ck-sources-2.6.11_p10.ebuild,v 1.1 2005/06/13 02:07:56 marineam Exp $
> > 
> > K_PREPATCHED="yes"
> > UNIPATCH_STRICTORDER="yes"
> > K_NOUSENAME="yes"
> > K_WANT_GENPATCHES="base"
> > K_GENPATCHES_VER="1"
> > ETYPE="sources"
> > inherit kernel-2
> > detect_version
> > 
> > # A few hacks to set ck version via _p instead of -r
> > MY_P=${P/_p*/}
> > MY_PR=${PR/r/-r}
> > MY_PR=${MY_PR/-r0/}
> > EXTRAVERSION=-ck${PV/*_p/}${MY_PR}
> > KV_FULL=${OKV}${EXTRAVERSION}
> > KV_CK=${KV_FULL/-r*/}
> > detect_version
> > 
> > IUSE="ck-server"
> > if use ck-server; then
> > 	CK_PATCH="patch-${KV_CK}-server.bz2"
> > else
> > 	CK_PATCH="patch-${KV_CK}.bz2"
> > fi
> > 
> > UNIPATCH_LIST="${DISTDIR}/${CK_PATCH}"
> > 
> > DESCRIPTION="Full sources for the Stock Linux kernel and Con Kolivas's high performance patchset"
> > HOMEPAGE="http://members.optusnet.com.au/ckolivas/kernel/"
> > SRC_URI="${KERNEL_URI} ${GENPATCHES_URI}
> > 	ck-server? ( http://ck.kolivas.org/patches/2.6/${OKV}/${KV_CK}/patch-${KV_CK}-server.bz2 )
> > 	!ck-server? ( http://ck.kolivas.org/patches/2.6/${OKV}/${KV_CK}/patch-${KV_CK}.bz2 )"
> > 
> > KEYWORDS="~x86 ~amd64"
> > 
> > pkg_postinst() {
> > 	postinst_sources
> > 
> > 	einfo "The ck patchset is tuned for desktop usage."
> > 	einfo "To better tune the kernel for server applications add"
> > 	einfo "ck-server to your use flags and reemerge ck-sources"
> > }
> > 

[-- Attachment #1.2: kernel-2.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/kernel-2.eclass,v 1.125 2005/05/15 20:30:04 johnm Exp $

# Description: kernel.eclass rewrite for a clean base regarding the 2.6
#              series of kernel with back-compatibility for 2.4
#
# Maintainer: John Mylchreest <johnm@gentoo.org>
# Copyright 2005 Gentoo Linux
#
# Please direct your bugs to the current eclass maintainer :)

# added functionality:
# unipatch		- a flexible, singular method to extract, add and remove patches.

# A Couple of env vars are available to effect usage of this eclass
# These are as follows:
#
# K_USEPV				- When setting the EXTRAVERSION variable, it should
#						  add PV to the end.
#						  this is useful for thigns like wolk. IE:
#						  EXTRAVERSION would be something like : -wolk-4.19-r1
# K_NOSETEXTRAVERSION	- if this is set then EXTRAVERSION will not be
#						  automatically set within the kernel Makefile
# K_NOUSENAME			- if this is set then EXTRAVERSION will not include the
#						  first part of ${PN} in EXTRAVERSION
# K_PREPATCHED			- if the patchset is prepatched (ie: mm-sources,
#						  ck-sources, ac-sources) it will use PR (ie: -r5) as
#						  the patchset version for
#						  and not use it as a true package revision
# K_EXTRAEINFO			- this is a new-line seperated list of einfo displays in
#						  postinst and can be used to carry additional postinst
#						  messages
# K_EXTRAEWARN			- same as K_EXTRAEINFO except ewarn's instead of einfo's
# K_SYMLINK				- if this is set, then forcably create symlink anyway
#
# K_DEFCONFIG			- Allow specifying a different defconfig target.
#						  If length zero, defaults to "defconfig".

# H_SUPPORTEDARCH		- this should be a space separated list of ARCH's which
#						  can be supported by the headers ebuild

# UNIPATCH_LIST			- space delimetered list of patches to be applied to the
#						  kernel
# UNIPATCH_EXCLUDE		- an addition var to support exlusion based completely
#						  on "<passedstring>*" and not "<passedno#>_*"
#						- this should _NOT_ be used from the ebuild as this is
#						  reserved for end users passing excludes from the cli
# UNIPATCH_DOCS			- space delimemeted list of docs to be installed to
#						  the doc dir
# UNIPATCH_STRICTORDER	- if this is set places patches into directories of
#						  order, so they are applied in the order passed

inherit toolchain-funcs versionator multilib
ECLASS="kernel-2"
INHERITED="$INHERITED $ECLASS"
EXPORT_FUNCTIONS pkg_setup src_unpack src_compile src_install \
	pkg_preinst pkg_postinst pkg_prerm

export CTARGET=${CTARGET:-${CHOST}}
if [[ ${CTARGET} == ${CHOST} && ${CATEGORY/cross-} != ${CATEGORY} ]]; then
	export CTARGET=${CATEGORY/cross-}
fi

HOMEPAGE="http://www.kernel.org/ http://www.gentoo.org/"
LICENSE="GPL-2"

# set LINUX_HOSTCFLAGS if not already set
[ -z "$LINUX_HOSTCFLAGS" ] && \
	LINUX_HOSTCFLAGS="-Wall -Wstrict-prototypes -Os -fomit-frame-pointer -I${S}/include"

#Eclass functions only from here onwards ...
#==============================================================
detect_version() {
	# this function will detect and set
	# - OKV: Original Kernel Version (2.6.0/2.6.0-test11)
	# - KV: Kernel Version (2.6.0-gentoo/2.6.0-test11-gentoo-r1)
	# - EXTRAVERSION: The additional version appended to OKV (-gentoo/-gentoo-r1)

	if [[ -n ${KV_FULL} ]]; then
		# we will set this for backwards compatibility.
		KV=${KV_FULL}

		# we know KV_FULL so lets stop here. but not without resetting S
		S=${WORKDIR}/linux-${KV_FULL}
		return
	fi

	# CKV is used as a comparison kernel version, which is used when
	# PV doesnt reflect the genuine kernel version.
	# this gets set to the portage style versioning. ie:
	#   CKV=2.6.11_rc4
	CKV=${CKV:-${PV}}
	OKV=${OKV:-${CKV}}
	OKV=${OKV/_beta/-test}
	OKV=${OKV/_rc/-rc}
	OKV=${OKV/-r*}
	OKV=${OKV/_p*}

	KV_MAJOR=$(get_version_component_range 1 ${OKV})
	KV_MINOR=$(get_version_component_range 2 ${OKV})
	KV_PATCH=$(get_version_component_range 3 ${OKV})

	if [[ ${KV_MAJOR}${KV_MINOR}${KV_PATCH} -ge 269 ]]; then
		KV_EXTRA=$(get_version_component_range 4- ${OKV})
		KV_EXTRA=${KV_EXTRA/[-_]*}
	else
		KV_PATCH=$(get_version_component_range 3- ${OKV})
	fi
	KV_PATCH=${KV_PATCH/[-_]*}

	KERNEL_URI="mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/linux-${OKV}.tar.bz2"

	RELEASE=${CKV/${OKV}}
	RELEASE=${RELEASE/_beta}
	RELEASE=${RELEASE/_rc/-rc}
	RELEASE=${RELEASE/_pre/-pre}
	kernel_is ge 2 6 && RELEASE=${RELEASE/-pre/-bk}
	RELEASETYPE=${RELEASE//[0-9]}

	# Now we know that RELEASE is the -rc/-bk
	# and RELEASETYPE is the same but with its numerics stripped
	# we can work on better sorting EXTRAVERSION.
	# first of all, we add the release
	EXTRAVERSION="${RELEASE}"
	[[ -n ${KV_EXTRA} ]] && EXTRAVERSION=".${KV_EXTRA}${EXTRAVERSION}"

	if [[ -n ${K_PREPATCHED} ]]; then
		EXTRAVERSION="${EXTRAVERSION}-${PN/-*}${PR/r}"
	elif [[ "${ETYPE}" = "sources" ]]; then
		# For some sources we want to use the PV in the extra version
		# This is because upstream releases with a completely different
		# versioning scheme.
		case ${PN/-*} in
		     wolk) K_USEPV=1;;
		  vserver) K_USEPV=1;;
		esac

		[[ -z ${K_NOUSENAME} ]] && EXTRAVERSION="${EXTRAVERSION}-${PN/-*}"
		[[ -n ${K_USEPV} ]]     && EXTRAVERSION="${EXTRAVERSION}-${PV//_/-}"
		[[ -n ${PR//r0} ]]      && EXTRAVERSION="${EXTRAVERSION}-${PR}"
	fi

	# The only messing around which should actually effect this is for KV_EXTRA
	# since this has to limit OKV to MAJ.MIN.PAT and strip EXTRA off else
	# KV_FULL evaluates to MAJ.MIN.PAT.EXT.EXT after EXTRAVERSION
	if [[ -n ${KV_EXTRA} ]]; then
		OKV="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}"
		KERNEL_URI="mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/patch-${CKV}.bz2
					mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/linux-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}.tar.bz2"
		UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${CKV}.bz2"
	fi
	
	# We need to set this using OKV, but we need to set it before we do any
	# messing around with OKV based on RELEASETYPE
	KV_FULL=${OKV}${EXTRAVERSION}

	# we will set this for backwards compatibility.
	S=${WORKDIR}/linux-${KV_FULL}
	KV=${KV_FULL}

	# -rc-bk pulls can be achieved by specifying CKV
	# for example:
	#   CKV="2.6.11_rc3_pre2"
	# will pull:
	#   linux-2.6.10.tar.bz2 & patch-2.6.11-rc3.bz2 & patch-2.6.11-rc3-bk2.bz2

	if [[ ${RELEASETYPE} == -rc ]] || [[ ${RELEASETYPE} == -pre ]]; then
		OKV="${KV_MAJOR}.${KV_MINOR}.$((${KV_PATCH} - 1))"
		KERNEL_URI="mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/testing/patch-${CKV//_/-}.bz2
					mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/linux-${OKV}.tar.bz2"
		UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${CKV//_/-}.bz2"
	fi

	if [[ ${RELEASETYPE} == -bk ]]; then
		KERNEL_URI="mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/snapshots/patch-${OKV}${RELEASE}.bz2
					mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/linux-${OKV}.tar.bz2"
		UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${OKV}${RELEASE}.bz2"
	fi

	if [[ ${RELEASETYPE} == -rc-bk ]]; then
		OKV="${KV_MAJOR}.${KV_MINOR}.$((${KV_PATCH} - 1))"
		KERNEL_URI="mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/snapshots/patch-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${RELEASE}.bz2
					mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/testing/patch-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${RELEASE/-bk*}.bz2
					mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/linux-${OKV}.tar.bz2"
		UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${RELEASE/-bk*}.bz2 ${DISTDIR}/patch-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${RELEASE}.bz2"
	fi
}

kernel_is() {
	[[ -z ${OKV} ]] && detect_version	
	local operator test value x=0 y=0 z=0

	case ${1} in
	  lt) operator="-lt"; shift;;
	  gt) operator="-gt"; shift;;
	  le) operator="-le"; shift;;
	  ge) operator="-ge"; shift;;
	  eq) operator="-eq"; shift;;
	   *) operator="-eq";;
	esac

	for x in ${@}; do
		for((y=0; y<$((3 - ${#x})); y++)); do value="${value}0"; done
		value="${value}${x}"
		z=$((${z} + 1))
		
		case ${z} in
		  1) for((y=0; y<$((3 - ${#KV_MAJOR})); y++)); do test="${test}0"; done;
			 test="${test}${KV_MAJOR}";;
		  2) for((y=0; y<$((3 - ${#KV_MINOR})); y++)); do test="${test}0"; done;
			 test="${test}${KV_MINOR}";;
		  3) for((y=0; y<$((3 - ${#KV_PATCH})); y++)); do test="${test}0"; done;
			 test="${test}${KV_PATCH}";;
		  *) die "Error in kernel-2_kernel_is(): Too many parameters.";;
		esac
	done

	[ ${test} ${operator} ${value} ] && return 0 || return 1
}

kernel_is_2_4() {
	kernel_is 2 4
}

kernel_is_2_6() {
	kernel_is 2 6 || kernel_is 2 5
}

kernel_header_destdir() {
	[[ ${CTARGET} == ${CHOST} ]] \
		&& echo /usr/include \
		|| echo /usr/${CTARGET}/include
}

# Capture the sources type and set DEPENDs
if [[ ${ETYPE} == sources ]]; then
	DEPEND="!build? ( sys-apps/sed
					  >=sys-devel/binutils-2.11.90.0.31 )
			doc? ( app-text/docbook-sgml-utils )"
	RDEPEND="${DEPEND}
			!build? ( >=sys-libs/ncurses-5.2
					  sys-devel/make )"

	PROVIDE="virtual/linux-sources"
	kernel_is gt 2 4 && PROVIDE="${PROVIDE} virtual/alsa"
	SLOT="${PVR}"
	DESCRIPTION="Sources for the Linux kernel"
	IUSE="${IUSE} symlink build doc"
elif [[ ${ETYPE} == headers ]]; then
	DESCRIPTION="Linux system headers"
	IUSE="${IUSE}"
	
	if [[ ${CTARGET} = ${CHOST} ]]; then
		DEPEND="!virtual/os-headers"
		PROVIDE="virtual/kernel virtual/os-headers"
		SLOT="0"
	else
		SLOT="${CTARGET}"
	fi
else
	eerror "Unknown ETYPE=\"${ETYPE}\", must be \"sources\" or \"headers\""
	die "Unknown ETYPE=\"${ETYPE}\", must be \"sources\" or \"headers\""
fi

# Unpack functions
#==============================================================
unpack_2_4() {
	# Kernel ARCH != portage ARCH
	local ARCH=$(tc-arch-kernel)	

	cd ${S}
	# this file is required for other things to build properly,
	# so we autogenerate it
	make mrproper || die "make mrproper died"
	make include/linux/version.h || die "make include/linux/version.h failed"
	echo ">>> version.h compiled successfully."

	ARCH=$(tc-arch)
}

universal_unpack() {
	cd ${WORKDIR}
	unpack linux-${OKV}.tar.bz2
	if [[ "${OKV}" != "${KV_FULL}" ]]; then
		mv linux-${OKV} linux-${KV_FULL} \
			|| die "Unable to move source tree to ${KV_FULL}."
	fi
	cd ${S}

	# remove all backup files
	find . -iname "*~" -exec rm {} \; 2> /dev/null

	# fix a problem on ppc where TOUT writes to /usr/src/linux breaking sandbox
	use ppc && \
		sed -ie 's|TOUT	:= .tmp_gas_check|TOUT	:= $(T).tmp_gas_check|' \
		${S}/arch/ppc/Makefile
}

unpack_set_extraversion() {
	cd ${S}
	sed -i -e "s:^\(EXTRAVERSION =\).*:\1 ${EXTRAVERSION}:" Makefile
	cd ${OLDPWD}
}

# Should be done after patches have been applied
# Otherwise patches that modify the same area of Makefile will fail
unpack_fix_install_path() {
	cd ${S}
	sed	-i -e 's:#export\tINSTALL_PATH:export\tINSTALL_PATH:' Makefile
}

unpack_fix_docbook() {
	if [[ -d ${S}/Documentation/DocBook ]]; then
		cd ${S}/Documentation/DocBook
		sed -ie "s:db2:docbook2:g" Makefile
		cd ${OLDPWD}
	fi
}

# Compile Functions
#==============================================================
compile_headers() {
	# Since KBUILD_OUTPUT shouldnt be used when compiling headers, lets unset it
	# if it exists.
	[[ -n ${KBUILD_OUTPUT} ]] && unset KBUILD_OUTPUT

	# if we couldnt obtain HOSTCFLAGS from the Makefile, 
	# then set it to something sane
	local HOSTCFLAGS=$(getfilevar HOSTCFLAGS ${S}/Makefile)
	HOSTCFLAGS=${HOSTCFLAGS:--Wall -Wstrict-prototypes -O2 -fomit-frame-pointer}

	# Kernel ARCH != portage ARCH
	local KARCH=$(tc-arch-kernel)

	# When cross-compiling, we need to set the ARCH/CROSS_COMPILE 
	# variables properly or bad things happen !
	local xmakeopts="ARCH=${KARCH}"
	if [[ ${CTARGET} != ${CHOST} ]]; then
		xmakeopts="${xmakeopts} CROSS_COMPILE=${CTARGET}-"
	elif type -p ${CHOST}-ar; then
		xmakeopts="${xmakeopts} CROSS_COMPILE=${CHOST}-"
	fi

	if kernel_is 2 4; then
		yes "" | make oldconfig ${xmakeopts}
		echo ">>> make oldconfig complete"
		use sparc && make dep ${xmakeopts}
	elif kernel_is 2 6; then
		# autoconf.h isnt generated unless it already exists. plus, we have
		# no guarantee that any headers are installed on the system...
		[[ -f ${ROOT}/usr/include/linux/autoconf.h ]] \
			|| touch include/linux/autoconf.h

		# if K_DEFCONFIG isn't set, force to "defconfig"
		# needed by mips
		if [[ -z ${K_DEFCONFIG} ]]; then
			K_DEFCONFIG="defconfig"
		fi

		# if there arent any installed headers, then there also isnt an asm
		# symlink in /usr/include/, and make defconfig will fail, so we have
		# to force an include path with $S.
		HOSTCFLAGS="${HOSTCFLAGS} -I${S}/include/"
		ln -sf asm-${KARCH} "${S}"/include/asm
		make ${K_DEFCONFIG} HOSTCFLAGS="${HOSTCFLAGS}" ${xmakeopts} || die "defconfig failed"
		make prepare HOSTCFLAGS="${HOSTCFLAGS}" ${xmakeopts} || die "prepare failed"
		make prepare-all HOSTCFLAGS="${HOSTCFLAGS}" ${xmakeopts} || die "prepare failed"
	fi
}

compile_manpages() {
	einfo "Making manpages ..."
	env -u ARCH make mandocs
}

# install functions
#==============================================================
install_universal() {
	#fix silly permissions in tarball
	cd ${WORKDIR}
	chown -R root:root *
	chmod -R a+r-w+X,u+w *
	cd ${OLDPWD}
}

install_headers() {
	local ddir=$(kernel_header_destdir)

	cd ${S}
	dodir ${ddir}/linux
	cp -ax ${S}/include/linux/* ${D}/${ddir}/linux
	rm -rf ${D}/${ddir}/linux/modules

	# Handle multilib headers
	case $(tc-arch-kernel) in
		sparc64)
			dodir ${ddir}/asm-sparc
			cp -ax ${S}/include/asm-sparc/* ${D}/${ddir}/asm-sparc

			dodir ${ddir}/asm-sparc64
			cp -ax ${S}/include/asm-sparc64/* ${D}/${ddir}/asm-sparc64

			create_ml_includes ${ddir}/asm !__arch64__:${ddir}/asm-sparc __arch64__:${ddir}/asm-sparc64
			;;
		x86_64)
			dodir ${ddir}/asm-i386
			cp -ax ${S}/include/asm-i386/* ${D}/${ddir}/asm-i386

			dodir ${ddir}/asm-x86_64
			cp -ax ${S}/include/asm-x86_64/* ${D}/${ddir}/asm-x86_64

			create_ml_includes ${ddir}/asm __i386__:${ddir}/asm-i386 __x86_64__:${ddir}/asm-x86_64
			;;
		arm)
			dodir ${ddir}/asm
			cp -ax ${S}/include/asm/* ${D}/${ddir}/asm
			[[ ! -e ${D}/${ddir}/asm/arch ]] && ln -s arch-ebsa285 ${D}/${ddir}/asm/arch
			[[ ! -e ${D}/${ddir}/asm/proc ]] && ln -s proc-armv ${D}/${ddir}/asm/proc
			;;
		*)
			dodir ${ddir}/asm
			cp -ax ${S}/include/asm/* ${D}/${ddir}/asm
			;;
	esac

	if kernel_is 2 6; then
		dodir ${ddir}/asm-generic
		cp -ax ${S}/include/asm-generic/* ${D}/${ddir}/asm-generic
	fi

	# clean up
	find "${D}" -name '*.orig' -exec rm -f {} \;

	cd ${OLDPWD}
}

install_sources() {
	local doc docs file

	cd ${S}
	dodir /usr/src
	echo ">>> Copying sources ..."

	file="$(find ${WORKDIR} -iname "docs" -type d)"
	if [[ -n ${file} ]]; then
		for file in $(find ${file} -type f); do
			echo "${file//*docs\/}" >> ${S}/patches.txt
			echo "===================================================" >> ${S}/patches.txt
			cat ${file} >> ${S}/patches.txt
			echo "===================================================" >> ${S}/patches.txt
			echo "" >> ${S}/patches.txt
		done
	fi

	if [[ ! -f ${S}/patches.txt ]]; then
		# patches.txt is empty so lets use our ChangeLog
		[[ -f ${FILESDIR}/../ChangeLog ]] && \
			echo "Please check the ebuild ChangeLog for more details." \
			> ${S}/patches.txt
	fi

	for doc in ${UNIPATCH_DOCS}; do	[[ -f ${doc} ]] && docs="${docs} ${doc}"; done
	if [[ -f ${S}/patches.txt ]]; then docs="${docs} ${S}/patches.txt"; fi
	use doc && ! use arm && ! use s390 && install_manpages
	dodoc ${docs}

	mv ${WORKDIR}/linux* ${D}/usr/src
}

install_manpages() {
	kernel_is lt 2 5 && return
	sed -ie "s#/usr/local/man#${D}/usr/man#g" scripts/makeman
	ebegin "Installing manpages"
	env -u ARCH make installmandocs
	eend $?
	sed -ie "s#${D}/usr/man#/usr/local/man#g" scripts/makeman
}

# pkg_preinst functions
#==============================================================
preinst_headers() {
	local ddir=$(kernel_header_destdir)
	[[ -L ${ddir}/linux ]] && rm ${ddir}/linux
	[[ -L ${ddir}/asm ]] && rm ${ddir}/asm
}

# pkg_postinst functions
#==============================================================
postinst_sources() {
	local MAKELINK=0
	
	# if we have USE=symlink, then force K_SYMLINK=1
	use symlink && K_SYMLINK=1

	# if we are to forcably symlink, delete it if it already exists first.
	if [[ -n ${K_SYMLINK} ]]; then
		[[ -h ${ROOT}usr/src/linux ]] && rm ${ROOT}usr/src/linux
		MAKELINK=1
	fi
	
	# if the link doesnt exist, lets create it
	[[ ! -h ${ROOT}usr/src/linux ]] && MAKELINK=1
	
	if [[ ${MAKELINK} == 1 ]]; then
		cd ${ROOT}usr/src
		ln -sf linux-${KV_FULL} linux
		cd ${OLDPWD}
	fi

	# Don't forget to make directory for sysfs
	[[ ! -d ${ROOT}sys ]] && kernel_is 2 6 && mkdir ${ROOT}sys

	echo
	einfo "After installing a new kernel of any version, it is important"
	einfo "that you have the appropriate /etc/modules.autoload.d/kernel-X.Y"
	einfo "created (X.Y is the first 2 parts of your new kernel version)"
	echo
	einfo "For example, this kernel will require:"
	einfo "/etc/modules.autoload.d/kernel-${KV_MAJOR}.${KV_MINOR}"
	echo
	einfo "If you are upgrading from a previous kernel, you may be interested"
	einfo "in the following documents:"
	einfo "  - General upgrade guide: http://www.gentoo.org/doc/en/kernel-upgrade.xml"
	kernel_is_2_6 && einfo "  - 2.4 to 2.6 migration guide: http://www.gentoo.org/doc/en/migration-to-2.6.xml"
	echo

	# if K_EXTRAEINFO is set then lets display it now
	if [[ -n ${K_EXTRAEINFO} ]]; then
		echo ${K_EXTRAEINFO} | fmt |
		while read -s ELINE; do	einfo "${ELINE}"; done
	fi

	# if K_EXTRAEWARN is set then lets display it now
	if [[ -n ${K_EXTRAEWARN} ]]; then
		echo ${K_EXTRAEWARN} | fmt |
		while read -s ELINE; do ewarn "${ELINE}"; done
	fi
}

postinst_headers() {
	einfo "Kernel headers are usually only used when recompiling glibc, as such, following the installation"
	einfo "of newer headers, it is advised that you re-merge glibc as follows:"
	einfo "emerge glibc"
	einfo "Failure to do so will cause glibc to not make use of newer features present in the updated kernel"
	einfo "headers."
}

# pkg_setup functions
#==============================================================
setup_headers() {
	[[ -z ${H_SUPPORTEDARCH} ]] && H_SUPPORTEDARCH=${PN/-*/}
	for i in ${H_SUPPORTEDARCH}; do
		[[ $(tc-arch) == "${i}" ]] && H_ACCEPT_ARCH="yes"
	done

	if [[ ${H_ACCEPT_ARCH} != "yes" ]]; then
		echo
		eerror "This version of ${PN} does not support $(tc-arch)."
		eerror "Please merge the appropriate sources, in most cases"
		eerror "(but not all) this will be called $(tc-arch)-headers."
		die "Package unsupported for $(tc-arch)"
	fi
}

# unipatch
#==============================================================
unipatch() {
	local i x y z extention PIPE_CMD UNIPATCH_DROP KPATCH_DIR PATCH_DEPTH ELINE
	local STRICT_COUNT PATCH_LEVEL myLC_ALL myLANG
	
	# set to a standard locale to ensure sorts are ordered properly.
	myLC_ALL="${LC_ALL}"
	myLANG="${LANG}"
	LC_ALL="C"
	LANG=""

	[ -z "${KPATCH_DIR}" ] && KPATCH_DIR="${WORKDIR}/patches/"
	[ ! -d ${KPATCH_DIR} ] && mkdir -p ${KPATCH_DIR}

	# We're gonna need it when doing patches with a predefined patchlevel
	shopt -s extglob

	# This function will unpack all passed tarballs, add any passed patches, and remove any passed patchnumbers
	# usage can be either via an env var or by params
	# although due to the nature we pass this within this eclass
	# it shall be by param only.
	# -z "${UNIPATCH_LIST}" ] && UNIPATCH_LIST="${@}"
	UNIPATCH_LIST="${@}"

	#unpack any passed tarballs
	for i in ${UNIPATCH_LIST}; do
		if [ -n "$(echo ${i} | grep -e "\.tar" -e "\.tbz" -e "\.tgz")" ]; then
			extention=${i/*./}
			extention=${extention/:*/}
			case ${extention} in
				tbz2) PIPE_CMD="tar -xvjf";;
				 bz2) PIPE_CMD="tar -xvjf";;
				 tgz) PIPE_CMD="tar -xvzf";;
				  gz) PIPE_CMD="tar -xvzf";;
				   *) eerror "Unrecognized tarball compression"
				      die "Unrecognized tarball compression";;
			esac

			if [ -n "${UNIPATCH_STRICTORDER}" ]; then
				unset z
				STRICT_COUNT=$((10#${STRICT_COUNT} + 1))
				for((y=0; y<$((6 - ${#STRICT_COUNT})); y++));
					do z="${z}0";
				done
				PATCH_ORDER="${z}${STRICT_COUNT}"

				mkdir -p ${KPATCH_DIR}/${PATCH_ORDER}/
				${PIPE_CMD} ${i/:*/} -C ${KPATCH_DIR}/${PATCH_ORDER}/ 1>/dev/null
			else
				${PIPE_CMD} ${i/:*/} -C ${KPATCH_DIR} 1>/dev/null
			fi

			if [ $? == 0 ]; then
				einfo "${i/*\//} unpacked"
				[ -n "$(echo ${i} | grep ':')" ] && echo ">>> Strict patch levels not currently supported for tarballed patchsets"
			else
				eerror "Failed to unpack ${i/:*/}"
				die "unable to unpack patch tarball"
			fi
		else
			extention=${i/*./}
			extention=${extention/:*/}
			PIPE_CMD=""
			case ${extention} in
				    bz2) PIPE_CMD="bzip2 -dc";;
				  patch) PIPE_CMD="cat";;
				   diff) PIPE_CMD="cat";;
				 gz|Z|z) PIPE_CMD="gzip -dc";;
				ZIP|zip) PIPE_CMD="unzip -p";;
				      *) UNIPATCH_DROP="${UNIPATCH_DROP} ${i/:*/}";;
			esac

			PATCH_LEVEL=${i/*([^:])?(:)}
			i=${i/:*/}
			x=${i/*\//}
			x=${x/\.${extention}/}

			if [ -n "${PIPE_CMD}" ]; then
				if [ ! -r "${i}" ]; then
					echo
					eerror "FATAL: unable to locate:"
					eerror "${i}"
					eerror "for read-only. The file either has incorrect permissions"
					eerror "or does not exist."
					die Unable to locate ${i}
				fi

				if [ -n "${UNIPATCH_STRICTORDER}" ]; then
					unset z
					STRICT_COUNT=$((10#${STRICT_COUNT} + 1))
					for((y=0; y<$((6 - ${#STRICT_COUNT})); y++));
						do z="${z}0";
					done
					PATCH_ORDER="${z}${STRICT_COUNT}"

					mkdir -p ${KPATCH_DIR}/${PATCH_ORDER}/
					$(${PIPE_CMD} ${i} > ${KPATCH_DIR}/${PATCH_ORDER}/${x}.patch${PATCH_LEVEL})
				else
					$(${PIPE_CMD} ${i} > ${KPATCH_DIR}/${x}.patch${PATCH_LEVEL})
				fi
			fi
		fi
	done

	#populate KPATCH_DIRS so we know where to look to remove the excludes
	x=${KPATCH_DIR}
	KPATCH_DIR=""
	for i in $(find ${x} -type d | sort -n); do
		KPATCH_DIR="${KPATCH_DIR} ${i}"
	done

	#so now lets get rid of the patchno's we want to exclude
	UNIPATCH_DROP="${UNIPATCH_EXCLUDE} ${UNIPATCH_DROP}"
	for i in ${UNIPATCH_DROP}; do
		ebegin "Excluding Patch #${i}"
		for x in ${KPATCH_DIR}; do rm -f ${x}/${i}* 2>/dev/null; done
		eend $?
	done

	# and now, finally, we patch it :)
	for x in ${KPATCH_DIR}; do
		for i in $(find ${x} -maxdepth 1 -iname "*.patch*" -or -iname "*.diff*" | sort -n); do
			STDERR_T="${T}/${i/*\//}"
			STDERR_T="${STDERR_T/.patch*/.err}"

			[ -z ${i/*.patch*/} ] && PATCH_DEPTH=${i/*.patch/}
			#[ -z ${i/*.diff*/} ]  && PATCH_DEPTH=${i/*.diff/}

			if [ -z "${PATCH_DEPTH}" ]; then PATCH_DEPTH=0; fi

			ebegin "Applying ${i/*\//} (-p${PATCH_DEPTH}+)"
			while [ ${PATCH_DEPTH} -lt 5 ]; do
				echo "Attempting Dry-run:" >> ${STDERR_T}
				echo "cmd: patch -p${PATCH_DEPTH} --dry-run -f < ${i}" >> ${STDERR_T}
				echo "=======================================================" >> ${STDERR_T}
				if [ $(patch -p${PATCH_DEPTH} --dry-run -f < ${i} >> ${STDERR_T}) $? -eq 0 ]; then
					echo "Attempting patch:" > ${STDERR_T}
					echo "cmd: patch -p${PATCH_DEPTH} -f < ${i}" >> ${STDERR_T}
					echo "=======================================================" >> ${STDERR_T}
					if [ $(patch -p${PATCH_DEPTH} -f < ${i} >> ${STDERR_T}) "$?" -eq 0 ]; then
						eend 0
						rm ${STDERR_T}
						break
					else
						eend 1
						eerror "Failed to apply patch ${i/*\//}"
						eerror "Please attach ${STDERR_T} to any bug you may post."
						die "Failed to apply ${i/*\//}"
					fi
				else
					PATCH_DEPTH=$((${PATCH_DEPTH} + 1))
				fi
			done
			if [ ${PATCH_DEPTH} -eq 5 ]; then
				eend 1
				eerror "Please attach ${STDERR_T} to any bug you may post."
				die "Unable to dry-run patch."
			fi
		done
	done

	# clean up  KPATCH_DIR's - fixes bug #53610
	for x in ${KPATCH_DIR}; do rm -Rf ${x}; done
	
	LC_ALL="${myLC_ALL}"
	LANG="${myLANG}"
}

# getfilevar accepts 2 vars as follows:
# getfilevar <VARIABLE> <CONFIGFILE>
# pulled from linux-info

getfilevar() {
	local workingdir basefname basedname xarch=$(tc-arch-kernel)

	if [[ -z ${1} ]] && [[ ! -f ${2} ]]; then
		echo -e "\n"
		eerror "getfilevar requires 2 variables, with the second a valid file."
		eerror "   getfilevar <VARIABLE> <CONFIGFILE>"
	else
		workingdir=${PWD}
		basefname=$(basename ${2})
		basedname=$(dirname ${2})
		unset ARCH
		
		cd ${basedname}
		echo -e "include ${basefname}\ne:\n\t@echo \$(${1})" | \
			make ${BUILD_FIXES} -s -f - e 2>/dev/null
		cd ${workingdir}
		 
		ARCH=${xarch}
	fi
}

detect_arch() {
	# This function sets ARCH_URI and ARCH_PATCH
	# with the neccessary info for the arch sepecific compatibility
	# patchsets.

	local ALL_ARCH LOOP_ARCH COMPAT_URI i

	# COMPAT_URI is the contents of ${ARCH}_URI
	# ARCH_URI is the URI for all the ${ARCH}_URI patches
	# ARCH_PATCH is ARCH_URI broken into files for UNIPATCH

	ARCH_URI=""
	ARCH_PATCH=""
	ALL_ARCH="X86 PPC PPC64 SPARC MIPS ALPHA ARM HPPA AMD64 IA64 X86OBSD S390 SH"

	for LOOP_ARCH in ${ALL_ARCH}; do
		COMPAT_URI="${LOOP_ARCH}_URI"
		COMPAT_URI="${!COMPAT_URI}"

		[[ -n ${COMPAT_URI} ]] && \
			ARCH_URI="${ARCH_URI} $(echo ${LOOP_ARCH} | tr '[:upper:]' '[:lower:]')? ( ${COMPAT_URI} )"

		if [[ ${LOOP_ARCH} == "$(echo $(tc-arch-kernel) | tr '[:lower:]' '[:upper:]')" ]]; 	then
			for i in ${COMPAT_URI}; do
				ARCH_PATCH="${ARCH_PATCH} ${DISTDIR}/${i/*\//}"
			done
		fi
	done
}

# sparc nastiness
#==============================================================
# This script generates the files in /usr/include/asm for sparc systems
# during installation of sys-kernel/linux-headers.
# Will no longer be needed when full 64 bit support is used on sparc64
# systems.
#
# Shamefully ripped from Debian
# ----------------------------------------------------------------------

# Idea borrowed from RedHat's kernel package

# This is gonna get replaced by something in multilib.eclass soon...
# --eradicator
generate_sparc_asm() {
	local name

	cd $1 || die
	mkdir asm

	for h in `( ls asm-sparc; ls asm-sparc64 ) | grep '\.h$' | sort -u`; do
		name="$(echo $h | tr a-z. A-Z_)"
		# common header
		echo "/* All asm/ files are generated and point to the corresponding
 * file in asm-sparc or asm-sparc64.
 */

#ifndef __SPARCSTUB__${name}__
#define __SPARCSTUB__${name}__
" > asm/${h}

		# common for sparc and sparc64
		if [ -f asm-sparc/$h -a -f asm-sparc64/$h ]; then
			echo "#ifdef __arch64__
#include <asm-sparc64/$h>
#else
#include <asm-sparc/$h>
#endif
" >> asm/${h}

		# sparc only
		elif [ -f asm-sparc/$h ]; then
echo "#ifndef __arch64__
#include <asm-sparc/$h>
#endif
" >> asm/${h}

		# sparc64 only
		else
echo "#ifdef __arch64__
#include <asm-sparc64/$h>
#endif
" >> asm/${h}
		fi

		# common footer
		echo "#endif /* !__SPARCSTUB__${name}__ */" >> asm/${h}
	done
	return 0
}

headers___fix() {
	# Voodoo to partially fix broken upstream headers.
	# Issues with this function should go to plasmaroo.
	sed -i \
		-e "s/\([ "$'\t'"]\)\(u\|s\)\(8\|16\|32\|64\)\([ "$'\t'"]\)/\1__\2\3\4/g;" \
		-e 's/ \(u\|s\)\(8\|16\|32\|64\)$/ __\1\2/g' \
		-e 's/\([(, ]\)\(u\|s\)64\([, )]\)/\1__\264\3/g' \
		-e "s/^\(u\|s\)\(8\|16\|32\|64\)\([ "$'\t'"]\)/__\1\2\3/g;" \
		"$@"
}

# common functions
#==============================================================
kernel-2_src_unpack() {
	universal_unpack

	[[ -n ${UNIPATCH_LIST} ]] || [[ -n ${UNIPATCH_LIST_DEFAULT} ]] && \
		unipatch "${UNIPATCH_LIST_DEFAULT} ${UNIPATCH_LIST}"

	[[ -z ${K_NOSETEXTRAVERSION} ]] && unpack_set_extraversion
	unpack_fix_docbook
	unpack_fix_install_path

	kernel_is 2 4 && unpack_2_4
}

kernel-2_src_compile() {
	cd ${S}
	[[ ${ETYPE} == headers ]] && compile_headers
	[[ ${ETYPE} == sources ]] && \
		use doc && ! use arm && ! use s390 && compile_manpages
}

kernel-2_pkg_preinst() {
	[[ ${ETYPE} == headers ]] && preinst_headers
}

kernel-2_src_install() {
	install_universal
	[[ ${ETYPE} == headers ]] && install_headers
	[[ ${ETYPE} == sources ]] && install_sources
}

kernel-2_pkg_postinst() {
	[[ ${ETYPE} == headers ]] && postinst_headers
	[[ ${ETYPE} == sources ]] && postinst_sources
}

kernel-2_pkg_setup() {
	[[ ${ETYPE} == headers ]] && setup_headers
	[[ ${ETYPE} == sources ]] && echo ">>> Preparing to unpack ..."
}

kernel-2_pkg_prerm() {
	local KV_DIR=${ROOT}/usr/src/linux-${KV_FULL}

	if [[ ${ETYPE} == sources ]]; then
		# if we have a config for it then we should act on it.
		if [[ -f ${KV_DIR}/.config ]]; then
			gzip -c ${KV_DIR}/.config > ${KV_DIR}.config
		fi

		# have kbuild clean up for us.
		if [[ -f ${KV_DIR}/include/linux/version.h ]]; then
			ARCH=$(tc-arch-kernel)
			make -C ${KV_DIR} mrproper
		fi
	fi
}

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Re: [gentoo-kernel] kernel-2.eclass: Easier way to use genpatches in ebuilds

[Henrik Brix Andersen]

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On Wed, 2005-06-22 at 13:52 +0100, Daniel Drake wrote:
> Any comments?

Shouldn't kernel-2::handle_genpatches() add the 0000_README file to
UNIPATCH_DOCS if found? Or was this left out on purpose?

Sincerely,
Brix
-- 
Henrik Brix Andersen <brix@gentoo.org>
Gentoo Metadistribution | Mobile computing herd

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