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kernel-2.eclass
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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: kernel-2.eclass
# @MAINTAINER:
# Gentoo Kernel project <[email protected]>
# @AUTHOR:
# John Mylchreest <[email protected]>
# Mike Pagano <[email protected]>
# <so many, many others, please add yourself>
# @SUPPORTED_EAPIS: 6 7 8
# @BLURB: Eclass for kernel packages
# @DESCRIPTION:
# This is the kernel.eclass rewrite for a clean base regarding the 2.6
# series of kernel with back-compatibility for 2.4
# Please direct your bugs to the current eclass maintainer :)
# added functionality:
# unipatch - a flexible, singular method to extract, add and remove patches.
# @ECLASS-VARIABLE: K_USEPV
# @DEFAULT_UNSET
# @DESCRIPTION:
# When setting the EXTRAVERSION variable, it should
# add PV to the end.
# this is useful for things like wolk. IE:
# EXTRAVERSION would be something like : -wolk-4.19-r1
# @ECLASS-VARIABLE: K_NODRYRUN
# @DEFAULT_UNSET
# @DESCRIPTION:
# if this is set then patch --dry-run will not
# be run. Certain patches will fail with this parameter
# See bug #507656
# @ECLASS-VARIABLE: K_NOSETEXTRAVERSION
# @DEFAULT_UNSET
# @DESCRIPTION:
# if this is set then EXTRAVERSION will not be
# automatically set within the kernel Makefile
# @ECLASS-VARIABLE: K_NOUSENAME
# @DEFAULT_UNSET
# @DESCRIPTION:
# if this is set then EXTRAVERSION will not include the
# first part of ${PN} in EXTRAVERSION
# @ECLASS-VARIABLE: K_NOUSEPR
# @DEFAULT_UNSET
# @DESCRIPTION:
# if this is set then EXTRAVERSION will not include the
# anything based on ${PR}.
# @ECLASS-VARIABLE: K_PREPATCHED
# @DEFAULT_UNSET
# @DESCRIPTION:
# if the patchset is prepatched (ie: pf-sources,
# zen-sources etc) it will use PR (ie: -r5) as the
# patchset version for and not use it as a true package
# revision
# @ECLASS-VARIABLE: K_EXTRAEINFO
# @DEFAULT_UNSET
# @DESCRIPTION:
# this is a new-line seperated list of einfo displays in
# postinst and can be used to carry additional postinst
# messages
# @ECLASS-VARIABLE: K_EXTRAELOG
# @DEFAULT_UNSET
# @DESCRIPTION:
# same as K_EXTRAEINFO except using elog instead of einfo
# @ECLASS-VARIABLE: K_EXTRAEWARN
# @DEFAULT_UNSET
# @DESCRIPTION:
# same as K_EXTRAEINFO except using ewarn instead of einfo
# @ECLASS-VARIABLE: K_SYMLINK
# @DEFAULT_UNSET
# @DESCRIPTION:
# if this is set, then forcably create symlink anyway
# @ECLASS-VARIABLE: K_BASE_VER
# @DEFAULT_UNSET
# @DESCRIPTION:
# for git-sources, declare the base version this patch is
# based off of.
# @ECLASS-VARIABLE: K_DEFCONFIG
# @DEFAULT_UNSET
# @DESCRIPTION:
# Allow specifying a different defconfig target.
# If length zero, defaults to "defconfig".
# @ECLASS-VARIABLE: K_WANT_GENPATCHES
# @DEFAULT_UNSET
# @DESCRIPTION:
# Apply genpatches to kernel source. Provide any
# combination of "base", "extras" or "experimental".
# @ECLASS-VARIABLE: K_EXP_GENPATCHES_PULL
# @DEFAULT_UNSET
# @DESCRIPTION:
# If set, we pull "experimental" regardless of the USE FLAG
# but expect the ebuild maintainer to use K_EXP_GENPATCHES_LIST.
# @ECLASS-VARIABLE: K_EXP_GENPATCHES_NOUSE
# @DEFAULT_UNSET
# @DESCRIPTION:
# If set, no USE flag will be provided for "experimental";
# as a result the user cannot choose to apply those patches.
# @ECLASS-VARIABLE: K_EXP_GENPATCHES_LIST
# @DEFAULT_UNSET
# @DESCRIPTION:
# A list of patches to pick from "experimental" to apply when
# the USE flag is unset and K_EXP_GENPATCHES_PULL is set.
# @ECLASS-VARIABLE: K_FROM_GIT
# @DEFAULT_UNSET
# @DESCRIPTION:
# If set, this variable signals that the kernel sources derives
# from a git tree and special handling will be applied so that
# any patches that are applied will actually apply.
# @ECLASS-VARIABLE: K_GENPATCHES_VER
# @DEFAULT_UNSET
# @DESCRIPTION:
# 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
# @ECLASS-VARIABLE: K_SECURITY_UNSUPPORTED
# @DEFAULT_UNSET
# @DESCRIPTION:
# If set, this kernel is unsupported by Gentoo Security
# to the current eclass maintainer :)
# @ECLASS-VARIABLE: K_DEBLOB_AVAILABLE
# @DEFAULT_UNSET
# @DESCRIPTION:
# A value of "0" will disable all of the optional deblob
# code. If empty, will be set to "1" if deblobbing is
# possible. Test ONLY for "1".
# @ECLASS-VARIABLE: K_DEBLOB_TAG
# @DEFAULT_UNSET
# @DESCRIPTION:
# This will be the version of deblob script. It's a upstream SVN tag
# such asw -gnu or -gnu1.
# @ECLASS-VARIABLE: K_PREDEBLOBBED
# @DEFAULT_UNSET
# @DESCRIPTION:
# This kernel was already deblobbed elsewhere.
# If false, either optional deblobbing will be available
# or the license will note the inclusion of linux-firmware code.
# @ECLASS-VARIABLE: K_LONGTERM
# @DEFAULT_UNSET
# @DESCRIPTION:
# If set, the eclass will search for the kernel source
# in the long term directories on the upstream servers
# as the location has been changed by upstream
# @ECLASS-VARIABLE: H_SUPPORTEDARCH
# @DEFAULT_UNSET
# @DESCRIPTION:
# this should be a space separated list of ARCH's which
# can be supported by the headers ebuild
# @ECLASS-VARIABLE: UNIPATCH_LIST
# @DEFAULT_UNSET
# @DESCRIPTION:
# space delimetered list of patches to be applied to the kernel
# @ECLASS-VARIABLE: UNIPATCH_EXCLUDE
# @DEFAULT_UNSET
# @DESCRIPTION:
# 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
# @ECLASS-VARIABLE: UNIPATCH_DOCS
# @DEFAULT_UNSET
# @DESCRIPTION:
# space delimemeted list of docs to be installed to
# the doc dir
# @ECLASS-VARIABLE: UNIPATCH_STRICTORDER
# @DEFAULT_UNSET
# @DESCRIPTION:
# if this is set places patches into directories of
# order, so they are applied in the order passed
# Changing any other variable in this eclass is not supported; you can request
# for additional variables to be added by contacting the current maintainer.
# If you do change them, there is a chance that we will not fix resulting bugs;
# that of course does not mean we're not willing to help.
inherit estack toolchain-funcs
[[ ${EAPI} == 6 ]] && inherit eapi7-ver
case ${EAPI} in
6|7|8) ;;
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac
# Added by Daniel Ostrow <[email protected]>
# This is an ugly hack to get around an issue with a 32-bit userland on ppc64.
# I will remove it when I come up with something more reasonable.
[[ ${PROFILE_ARCH} == ppc64 ]] && CHOST="powerpc64-${CHOST#*-}"
export CTARGET=${CTARGET:-${CHOST}}
if [[ ${CTARGET} == ${CHOST} && ${CATEGORY/cross-} != ${CATEGORY} ]]; then
export CTARGET=${CATEGORY/cross-}
fi
HOMEPAGE="https://www.kernel.org/ https://wiki.gentoo.org/wiki/Kernel ${HOMEPAGE}"
: ${LICENSE:="GPL-2"}
# No need to run scanelf/strip on kernel sources/headers (bug #134453).
RESTRICT="binchecks strip"
# set LINUX_HOSTCFLAGS if not already set
: ${LINUX_HOSTCFLAGS:="-Wall -Wstrict-prototypes -Os -fomit-frame-pointer -I${S}/include"}
# @FUNCTION: debug-print-kernel2-variables
# @USAGE:
# @DESCRIPTION:
# this function exists only to help debug kernel-2.eclass
# if you are adding new functionality in, put a call to it
# at the start of src_unpack, or during SRC_URI/dep generation.
debug-print-kernel2-variables() {
for v in PVR CKV OKV KV KV_FULL KV_MAJOR KV_MINOR KV_PATCH RELEASETYPE \
RELEASE UNIPATCH_LIST_DEFAULT UNIPATCH_LIST_GENPATCHES \
UNIPATCH_LIST S KERNEL_URI K_WANT_GENPATCHES ; do
debug-print "${v}: ${!v}"
done
}
# @FUNCTION: handle_genpatches
# @USAGE: [--set-unipatch-list]
# @DESCRIPTION:
# add genpatches to list of patches to apply if wanted
handle_genpatches() {
local tarball want_unipatch_list
[[ -z ${K_WANT_GENPATCHES} || -z ${K_GENPATCHES_VER} ]] && return 1
if [[ -n ${1} ]]; then
# set UNIPATCH_LIST_GENPATCHES only on explicit request
# since that requires 'use' call which can be used only in phase
# functions, while the function is also called in global scope
if [[ ${1} == --set-unipatch-list ]]; then
want_unipatch_list=1
else
die "Usage: ${FUNCNAME} [--set-unipatch-list]"
fi
fi
debug-print "Inside handle_genpatches"
local OKV_ARRAY
IFS="." read -r -a OKV_ARRAY <<<"${OKV}"
# for > 3.0 kernels, handle genpatches tarball name
# genpatches for 3.0 and 3.0.1 might be named
# genpatches-3.0-1.base.tar.xz and genpatches-3.0-2.base.tar.xz
# respectively. Handle this.
for i in ${K_WANT_GENPATCHES} ; do
if [[ ${KV_MAJOR} -ge 3 ]]; then
if [[ ${#OKV_ARRAY[@]} -ge 3 ]]; then
tarball="genpatches-${KV_MAJOR}.${KV_MINOR}-${K_GENPATCHES_VER}.${i}.tar.xz"
else
tarball="genpatches-${KV_MAJOR}.${KV_PATCH}-${K_GENPATCHES_VER}.${i}.tar.xz"
fi
else
tarball="genpatches-${OKV}-${K_GENPATCHES_VER}.${i}.tar.xz"
fi
local use_cond_start="" use_cond_end=""
if [[ ${i} == experimental && -z ${K_EXP_GENPATCHES_PULL} && -z ${K_EXP_GENPATCHES_NOUSE} ]]; then
use_cond_start="experimental? ( "
use_cond_end=" )"
if [[ -n ${want_unipatch_list} ]] && use experimental; then
UNIPATCH_LIST_GENPATCHES+=" ${DISTDIR}/${tarball}"
debug-print "genpatches tarball: ${tarball}"
fi
elif [[ -n ${want_unipatch_list} ]]; then
UNIPATCH_LIST_GENPATCHES+=" ${DISTDIR}/${tarball}"
debug-print "genpatches tarball: ${tarball}"
fi
GENPATCHES_URI+=" ${use_cond_start}$(echo https://dev.gentoo.org/~{alicef,mpagano,whissi}/dist/genpatches/${tarball})${use_cond_end}"
done
}
# @FUNCTION: detect_version
# @USAGE:
# @DESCRIPTION:
# 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)
detect_version() {
# We've already run, so nothing to do here.
[[ -n ${KV_FULL} ]] && return 0
# CKV is used as a comparison kernel version, which is used when
# PV doesnt reflect the genuine kernel version.
# this gets set to the portage style versioning. ie:
# CKV=2.6.11_rc4
CKV=${CKV:-${PV}}
OKV=${OKV:-${CKV}}
OKV=${OKV/_beta/-test}
OKV=${OKV/_rc/-rc}
OKV=${OKV/-r*}
OKV=${OKV/_p*}
KV_MAJOR=$(ver_cut 1 ${OKV})
# handle if OKV is X.Y or X.Y.Z (e.g. 3.0 or 3.0.1)
local OKV_ARRAY
IFS="." read -r -a OKV_ARRAY <<<"${OKV}"
# if KV_MAJOR >= 3, then we have no more KV_MINOR
#if [[ ${KV_MAJOR} -lt 3 ]]; then
if [[ ${#OKV_ARRAY[@]} -ge 3 ]]; then
KV_MINOR=$(ver_cut 2 ${OKV})
KV_PATCH=$(ver_cut 3 ${OKV})
if [[ ${KV_MAJOR}${KV_MINOR}${KV_PATCH} -ge 269 ]]; then
KV_EXTRA=$(ver_cut 4- ${OKV})
KV_EXTRA=${KV_EXTRA/[-_]*}
else
KV_PATCH=$(ver_cut 3- ${OKV})
fi
else
KV_PATCH=$(ver_cut 2 ${OKV})
KV_EXTRA=$(ver_cut 3- ${OKV})
KV_EXTRA=${KV_EXTRA/[-_]*}
fi
debug-print "KV_EXTRA is ${KV_EXTRA}"
KV_PATCH=${KV_PATCH/[-_]*}
local v n=0 missing
#if [[ ${KV_MAJOR} -lt 3 ]]; then
if [[ ${#OKV_ARRAY[@]} -ge 3 ]]; then
for v in CKV OKV KV_{MAJOR,MINOR,PATCH} ; do
[[ -z ${!v} ]] && n=1 && missing="${missing}${v} ";
done
else
for v in CKV OKV KV_{MAJOR,PATCH} ; do
[[ -z ${!v} ]] && n=1 && missing="${missing}${v} ";
done
fi
[[ ${n} -eq 1 ]] && \
eerror "Missing variables: ${missing}" && \
die "Failed to extract kernel version (try explicit CKV in ebuild)!"
unset v n missing
# if [[ ${KV_MAJOR} -ge 3 ]]; then
if [[ ${#OKV_ARRAY[@]} -lt 3 ]]; then
KV_PATCH_ARR=(${KV_PATCH//\./ })
# at this point 031412, Linus is putting all 3.x kernels in a
# 3.x directory, may need to revisit when 4.x is released
KERNEL_BASE_URI="https://www.kernel.org/pub/linux/kernel/v${KV_MAJOR}.x"
[[ -n ${K_LONGTERM} ]] &&
KERNEL_BASE_URI="${KERNEL_BASE_URI}/longterm/v${KV_MAJOR}.${KV_PATCH_ARR}"
else
#KERNEL_BASE_URI="https://www.kernel.org/pub/linux/kernel/v${KV_MAJOR}.0"
#KERNEL_BASE_URI="https://www.kernel.org/pub/linux/kernel/v${KV_MAJOR}.${KV_MINOR}"
if [[ ${KV_MAJOR} -ge 3 ]]; then
KERNEL_BASE_URI="https://www.kernel.org/pub/linux/kernel/v${KV_MAJOR}.x"
else
KERNEL_BASE_URI="https://www.kernel.org/pub/linux/kernel/v${KV_MAJOR}.${KV_MINOR}"
fi
[[ -n ${K_LONGTERM} ]] &&
#KERNEL_BASE_URI="${KERNEL_BASE_URI}/longterm"
KERNEL_BASE_URI="${KERNEL_BASE_URI}/longterm/v${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}"
fi
debug-print "KERNEL_BASE_URI is ${KERNEL_BASE_URI}"
if [[ ${#OKV_ARRAY[@]} -ge 3 && ${KV_MAJOR} -ge 3 ]]; then
# handle non genpatch using sources correctly
if [[ -z ${K_WANT_GENPATCHES} && -z ${K_GENPATCHES_VER} && ${KV_PATCH} -gt 0 ]]; then
KERNEL_URI="${KERNEL_BASE_URI}/patch-${OKV}.xz"
UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${CKV}.xz"
fi
KERNEL_URI="${KERNEL_URI} ${KERNEL_BASE_URI}/linux-${KV_MAJOR}.${KV_MINOR}.tar.xz"
else
KERNEL_URI="${KERNEL_BASE_URI}/linux-${OKV}.tar.xz"
fi
RELEASE=${CKV/${OKV}}
RELEASE=${RELEASE/_beta}
RELEASE=${RELEASE/_rc/-rc}
RELEASE=${RELEASE/_pre/-pre}
# We cannot trivally call kernel_is here, because it calls us to detect the
# version
#kernel_is ge 2 6 && RELEASE=${RELEASE/-pre/-git}
(( KV_MAJOR * 1000 + ${KV_MINOR:-0} >= 2006 )) && RELEASE=${RELEASE/-pre/-git}
RELEASETYPE=${RELEASE//[0-9]}
# Now we know that RELEASE is the -rc/-git
# and RELEASETYPE is the same but with its numerics stripped
# we can work on better sorting EXTRAVERSION.
# first of all, we add the release
EXTRAVERSION="${RELEASE}"
debug-print "0 EXTRAVERSION:${EXTRAVERSION}"
[[ -n ${KV_EXTRA} && ${KV_MAJOR} -lt 3 ]] && EXTRAVERSION=".${KV_EXTRA}${EXTRAVERSION}"
debug-print "1 EXTRAVERSION:${EXTRAVERSION}"
if [[ -n ${K_NOUSEPR} ]]; then
# Don't add anything based on PR to EXTRAVERSION
debug-print "1.0 EXTRAVERSION:${EXTRAVERSION}"
elif [[ -n ${K_PREPATCHED} ]]; then
debug-print "1.1 EXTRAVERSION:${EXTRAVERSION}"
EXTRAVERSION="${EXTRAVERSION}-${PN/-*}${PR/r}"
elif [[ ${ETYPE} = sources ]]; then
debug-print "1.2 EXTRAVERSION:${EXTRAVERSION}"
# 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}-${PR}"
fi
debug-print "2 EXTRAVERSION:${EXTRAVERSION}"
# 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
if [[ -n ${KV_MINOR} ]]; then
OKV="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}"
else
OKV="${KV_MAJOR}.${KV_PATCH}"
fi
KERNEL_URI="${KERNEL_BASE_URI}/patch-${CKV}.xz
${KERNEL_BASE_URI}/linux-${OKV}.tar.xz"
UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${CKV}.xz"
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-git pulls can be achieved by specifying CKV
# for example:
# CKV="2.6.11_rc3_pre2"
# will pull:
# linux-2.6.10.tar.xz & patch-2.6.11-rc3.xz & patch-2.6.11-rc3-git2.xz
if [[ ${KV_MAJOR}${KV_MINOR} -eq 26 ]]; then
if [[ ${RELEASETYPE} == -rc || ${RELEASETYPE} == -pre ]]; then
OKV="${KV_MAJOR}.${KV_MINOR}.$((${KV_PATCH} - 1))"
KERNEL_URI="${KERNEL_BASE_URI}/testing/patch-${CKV//_/-}.xz
${KERNEL_BASE_URI}/linux-${OKV}.tar.xz"
UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${CKV//_/-}.xz"
fi
if [[ ${RELEASETYPE} == -git ]]; then
KERNEL_URI="${KERNEL_BASE_URI}/snapshots/patch-${OKV}${RELEASE}.xz
${KERNEL_BASE_URI}/linux-${OKV}.tar.xz"
UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${OKV}${RELEASE}.xz"
fi
if [[ ${RELEASETYPE} == -rc-git ]]; then
OKV="${KV_MAJOR}.${KV_MINOR}.$((${KV_PATCH} - 1))"
KERNEL_URI="${KERNEL_BASE_URI}/snapshots/patch-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${RELEASE}.xz
${KERNEL_BASE_URI}/testing/patch-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${RELEASE/-git*}.xz
${KERNEL_BASE_URI}/linux-${OKV}.tar.xz"
UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${RELEASE/-git*}.xz ${DISTDIR}/patch-${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${RELEASE}.xz"
fi
else
KV_PATCH_ARR=(${KV_PATCH//\./ })
# the different majorminor versions have different patch start versions
OKV_DICT=(["2"]="${KV_MAJOR}.$((${KV_PATCH_ARR} - 1))" ["3"]="2.6.39" ["4"]="3.19")
if [[ ${RELEASETYPE} == -rc || ${RELEASETYPE} == -pre ]]; then
OKV=${K_BASE_VER:-${OKV_DICT["${KV_MAJOR}"]}}
# as of 12/5/2017, the rc patch is no longer offered as a compressed
# file, and no longer is it mirrored on kernel.org
if ver_test "${KV_MAJOR}.${KV_PATCH}" -ge "4.12"; then
KERNEL_URI="https://git.kernel.org/torvalds/p/v${KV_FULL}/v${OKV} -> patch-${KV_FULL}.patch
${KERNEL_BASE_URI}/linux-${OKV}.tar.xz"
UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${CKV//_/-}.patch"
else
KERNEL_URI="${KERNEL_BASE_URI}/testing/patch-${CKV//_/-}.xz
${KERNEL_BASE_URI}/linux-${OKV}.tar.xz"
UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${CKV//_/-}.xz"
fi
fi
if [[ ${RELEASETYPE} == -git ]]; then
KERNEL_URI="${KERNEL_BASE_URI}/snapshots/patch-${OKV}${RELEASE}.xz
${KERNEL_BASE_URI}/linux-${OKV}.tar.xz"
UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${OKV}${RELEASE}.xz"
fi
if [[ ${RELEASETYPE} == -rc-git ]]; then
OKV=${K_BASE_VER:-${OKV_DICT["${KV_MAJOR}"]}}
KERNEL_URI="${KERNEL_BASE_URI}/snapshots/patch-${KV_MAJOR}.${KV_PATCH}${RELEASE}.xz
${KERNEL_BASE_URI}/testing/patch-${KV_MAJOR}.${KV_PATCH}${RELEASE/-git*}.xz
${KERNEL_BASE_URI}/linux-${OKV}.tar.xz"
UNIPATCH_LIST_DEFAULT="${DISTDIR}/patch-${KV_MAJOR}.${KV_PATCH}${RELEASE/-git*}.xz ${DISTDIR}/patch-${KV_MAJOR}.${KV_PATCH}${RELEASE}.xz"
fi
fi
debug-print-kernel2-variables
handle_genpatches
}
# @FUNCTION: kernel_is
# @USAGE: <conditional version | version>
# @DESCRIPTION:
# user for comparing kernel versions
# or just identifying a version
# e.g kernel_is 2 4
# e.g kernel_is ge 4.8.11
# Note: duplicated in linux-info.eclass
kernel_is() {
# ALL of these should be set before we can safely continue this function.
# some of the sources have in the past had only one set.
local v n=0
for v in OKV KV_{MAJOR,MINOR,PATCH} ; do [[ -z ${!v} ]] && n=1 ; done
[[ ${n} -eq 1 ]] && detect_version
# Now we can continue
local operator
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
[[ $# -gt 3 ]] && die "Error in kernel-2_kernel_is(): too many parameters"
ver_test \
"${KV_MAJOR:-0}.${KV_MINOR:-0}.${KV_PATCH:-0}" \
"${operator}" \
"${1:-${KV_MAJOR:-0}}.${2:-${KV_MINOR:-0}}.${3:-${KV_PATCH:-0}}"
}
# Capture the sources type and set DEPENDs
if [[ ${ETYPE} == sources ]]; then
[[ ${EAPI} == 6 ]] && DEPEND="!build? ( sys-apps/sed )" ||
BDEPEND="!build? ( sys-apps/sed )"
RDEPEND="!build? (
app-arch/cpio
dev-lang/perl
sys-devel/bc
sys-devel/bison
sys-devel/flex
sys-devel/make
>=sys-libs/ncurses-5.2
virtual/libelf
virtual/pkgconfig
)"
SLOT="${PVR}"
DESCRIPTION="Sources based on the Linux Kernel."
IUSE="symlink build"
# Bug #266157, deblob for libre support
if [[ -z ${K_PREDEBLOBBED} ]]; then
# deblob less than 5.10 require python 2.7
if kernel_is lt 5 10; then
K_DEBLOB_AVAILABLE=0
fi
if [[ ${K_DEBLOB_AVAILABLE} == 1 ]]; then
PYTHON_COMPAT=( python3_{7..10} )
inherit python-any-r1
IUSE="${IUSE} deblob"
# Reflect that kernels contain firmware blobs unless otherwise
# stripped. Starting with version 4.14, the whole firmware
# tree has been dropped from the kernel.
kernel_is lt 4 14 && LICENSE+=" !deblob? ( linux-firmware )"
BDEPEND+=" deblob? ( ${PYTHON_DEPS} )"
if [[ -n KV_MINOR ]]; then
DEBLOB_PV="${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}"
else
DEBLOB_PV="${KV_MAJOR}.${KV_PATCH}"
fi
if [[ ${KV_MAJOR} -ge 3 ]]; then
DEBLOB_PV="${KV_MAJOR}.${KV_MINOR}"
fi
# deblob svn tag, default is -gnu, to change, use K_DEBLOB_TAG in ebuild
K_DEBLOB_TAG=${K_DEBLOB_TAG:--gnu}
DEBLOB_A="deblob-${DEBLOB_PV}"
DEBLOB_CHECK_A="deblob-check-${DEBLOB_PV}"
DEBLOB_HOMEPAGE="https://www.fsfla.org/svn/fsfla/software/linux-libre/releases/tags/"
DEBLOB_URI_PATH="${DEBLOB_PV}${K_DEBLOB_TAG}"
DEBLOB_CHECK_URI="${DEBLOB_HOMEPAGE}/${DEBLOB_URI_PATH}/deblob-check -> ${DEBLOB_CHECK_A}"
DEBLOB_URI="${DEBLOB_HOMEPAGE}/${DEBLOB_URI_PATH}/${DEBLOB_A}"
HOMEPAGE="${HOMEPAGE} ${DEBLOB_HOMEPAGE}"
KERNEL_URI="${KERNEL_URI}
deblob? (
${DEBLOB_URI}
${DEBLOB_CHECK_URI}
)"
elif kernel_is lt 4 14; then
# Deblobbing is not available, so just mark kernels older
# than 4.14 as tainted with non-libre materials.
LICENSE+=" linux-firmware"
fi
fi
elif [[ ${ETYPE} == headers ]]; then
DESCRIPTION="Linux system headers"
IUSE="headers-only"
# Since we should NOT honour KBUILD_OUTPUT in headers
# lets unset it here.
unset KBUILD_OUTPUT
SLOT="0"
fi
# Cross-compile support functions
# @FUNCTION: kernel_header_destdir
# @USAGE:
# @DESCRIPTION:
# return header destination directory
kernel_header_destdir() {
[[ ${CTARGET} == ${CHOST} ]] \
&& echo /usr/include \
|| echo /usr/${CTARGET}/usr/include
}
# @FUNCTION: cross_pre_c_headers
# @USAGE:
# @DESCRIPTION:
# set use if necessary for cross compile support
cross_pre_c_headers() {
use headers-only && [[ ${CHOST} != ${CTARGET} ]]
}
# @FUNCTION: env_setup_xmakeopts
# @USAGE:
# @DESCRIPTION:
# set the ARCH/CROSS_COMPILE when cross compiling
env_setup_xmakeopts() {
# Kernel ARCH != portage ARCH
export KARCH=$(tc-arch-kernel)
# When cross-compiling, we need to set the ARCH/CROSS_COMPILE
# variables properly or bad things happen !
xmakeopts="ARCH=${KARCH}"
if [[ ${CTARGET} != ${CHOST} ]] && ! cross_pre_c_headers; then
xmakeopts="${xmakeopts} CROSS_COMPILE=${CTARGET}-"
elif type -p ${CHOST}-ar >/dev/null; then
xmakeopts="${xmakeopts} CROSS_COMPILE=${CHOST}-"
fi
xmakeopts="${xmakeopts} HOSTCC=$(tc-getBUILD_CC)"
export xmakeopts
}
# @FUNCTION: universal_unpack
# @USAGE:
# @DESCRIPTION:
# unpack kernel sources
universal_unpack() {
debug-print "Inside universal_unpack"
local OKV_ARRAY
IFS="." read -r -a OKV_ARRAY <<<"${OKV}"
cd "${WORKDIR}" || die
if [[ ${#OKV_ARRAY[@]} -ge 3 && ${KV_MAJOR} -ge 3 ]]; then
unpack linux-${KV_MAJOR}.${KV_MINOR}.tar.xz
else
unpack linux-${OKV}.tar.xz
fi
if [[ -d linux ]]; then
debug-print "Moving linux to linux-${KV_FULL}"
mv linux linux-${KV_FULL} \
|| die "Unable to move source tree to ${KV_FULL}."
elif [[ ${OKV} != ${KV_FULL} ]]; then
if [[ ${#OKV_ARRAY[@]} -ge 3 && ${KV_MAJOR} -ge 3 ]] &&
[[ ${ETYPE} = sources ]]; then
debug-print "moving linux-${KV_MAJOR}.${KV_MINOR} to linux-${KV_FULL} "
mv linux-${KV_MAJOR}.${KV_MINOR} linux-${KV_FULL} \
|| die "Unable to move source tree to ${KV_FULL}."
else
debug-print "moving linux-${OKV} to linux-${KV_FULL} "
mv linux-${OKV} linux-${KV_FULL} \
|| die "Unable to move source tree to ${KV_FULL}."
fi
elif [[ ${#OKV_ARRAY[@]} -ge 3 && ${KV_MAJOR} -ge 3 ]]; then
mv linux-${KV_MAJOR}.${KV_MINOR} linux-${KV_FULL} \
|| die "Unable to move source tree to ${KV_FULL}."
fi
cd "${S}" || die
# remove all backup files
find . -iname "*~" -exec rm {} \; 2>/dev/null
}
# @FUNCTION: unpack_set_extraversion
# @USAGE:
# @DESCRIPTION:
# handle EXTRAVERSION
unpack_set_extraversion() {
sed -i -e "s:^\(EXTRAVERSION =\).*:\1 ${EXTRAVERSION}:" "${S}"/Makefile || die
}
# @FUNCTION: unpack_fix_install_path
# @USAGE:
# @DESCRIPTION:
# Should be done after patches have been applied
# Otherwise patches that modify the same area of Makefile will fail
unpack_fix_install_path() {
sed -i -e 's:#export\tINSTALL_PATH:export\tINSTALL_PATH:' "${S}"/Makefile || die
}
# Compile Functions
# @FUNCTION: compile_headers
# @USAGE:
# @DESCRIPTION:
# header compilation
compile_headers() {
env_setup_xmakeopts
# if we couldnt obtain HOSTCFLAGS from the Makefile,
# then set it to something sane
local HOSTCFLAGS=$(getfilevar HOSTCFLAGS "${S}"/Makefile)
HOSTCFLAGS=${HOSTCFLAGS:--Wall -Wstrict-prototypes -O2 -fomit-frame-pointer}
if kernel_is 2 4; then
yes "" | make oldconfig ${xmakeopts}
einfo ">>> make oldconfig complete"
make dep ${xmakeopts}
elif kernel_is 2 6; then
# 2.6.18 introduces headers_install which means we dont need any
# of this crap anymore :D
kernel_is ge 2 6 18 && return 0
# autoconf.h isnt generated unless it already exists. plus, we have
# no guarantee that any headers are installed on the system...
[[ -f ${EROOT%/}/usr/include/linux/autoconf.h ]] \
|| touch include/linux/autoconf.h || die
# if K_DEFCONFIG isn't set, force to "defconfig"
# needed by mips
if [[ -z ${K_DEFCONFIG} ]]; then
if kernel_is ge 2 6 16; then
case ${CTARGET} in
powerpc64*) K_DEFCONFIG="ppc64_defconfig";;
powerpc*) K_DEFCONFIG="pmac32_defconfig";;
*) K_DEFCONFIG="defconfig";;
esac
else
K_DEFCONFIG="defconfig"
fi
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 || die
cross_pre_c_headers && return 0
make ${K_DEFCONFIG} HOSTCFLAGS="${HOSTCFLAGS}" ${xmakeopts} || die "defconfig failed (${K_DEFCONFIG})"
if compile_headers_tweak_config; then
yes "" | make oldconfig HOSTCFLAGS="${HOSTCFLAGS}" ${xmakeopts} || die "2nd oldconfig failed"
fi
make prepare HOSTCFLAGS="${HOSTCFLAGS}" ${xmakeopts} || die "prepare failed"
make prepare-all HOSTCFLAGS="${HOSTCFLAGS}" ${xmakeopts} || die "prepare failed"
fi
}
# @FUNCTION: compile_headers_tweak_config
# @USAGE:
# @DESCRIPTION:
# some targets can be very very picky, so let's finesse the
# .config based upon any info we may have
compile_headers_tweak_config() {
case ${CTARGET} in
sh*)
sed -i '/CONFIG_CPU_SH/d' .config || die
echo "CONFIG_CPU_SH${CTARGET:2:1}=y" >> .config
return 0;;
esac
# no changes, so lets do nothing
return 1
}
# install functions
# @FUNCTION: install_universal
# @USAGE:
# @DESCRIPTION:
# Fix permissions in tarball
install_universal() {
chown -R 0:0 "${WORKDIR}"/* &>/dev/null
chmod -R a+r-w+X,u+w "${WORKDIR}"/*
}
# @FUNCTION: install_headers
# @USAGE:
# @DESCRIPTION:
# Install headers
install_headers() {
local ddir=$(kernel_header_destdir)
# 2.6.18 introduces headers_install which means we dont need any
# of this crap anymore :D
if kernel_is ge 2 6 18; then
env_setup_xmakeopts
emake headers_install INSTALL_HDR_PATH="${ED%/}"${ddir}/.. ${xmakeopts}
# let other packages install some of these headers
rm -rf "${ED%/}"${ddir}/scsi || die #glibc/uclibc/etc...
return 0
fi
# Do not use "linux/*" as that can cause problems with very long
# $S values where the cmdline to cp is too long
pushd "${S}" >/dev/null || die
dodir ${ddir}/linux
cp -pPR "${S}"/include/linux "${ED%/}"${ddir}/ || die
rm -rf "${ED%/}"${ddir}/linux/modules || die
dodir ${ddir}/asm
cp -pPR "${S}"/include/asm/* "${ED%/}"${ddir}/asm || die
if kernel_is 2 6; then
dodir ${ddir}/asm-generic
cp -pPR "${S}"/include/asm-generic/* "${ED%/}"${ddir}/asm-generic || die
fi
# clean up
find "${D}" -name '*.orig' -exec rm -f {} \; || die
popd >/dev/null || die
}
# @FUNCTION: install_sources
# @USAGE:
# @DESCRIPTION:
# Install sources
install_sources() {
local file
cd "${S}" || die
dodir /usr/src
einfo ">>> 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
mv "${WORKDIR}"/linux* "${ED%/}"/usr/src || die
if [[ -n ${UNIPATCH_DOCS} ]]; then
for i in ${UNIPATCH_DOCS}; do
dodoc "${T}"/${i}
done
fi
}
# @FUNCTION: preinst_headers
# @USAGE:
# @DESCRIPTION:
# Headers preinst steps
preinst_headers() {
local ddir=$(kernel_header_destdir)
[[ -L ${EPREFIX}${ddir}/linux ]] && { rm "${EPREFIX}"${ddir}/linux || die; }
[[ -L ${EPREFIX}${ddir}/asm ]] && { rm "${EPREFIX}"${ddir}/asm || die; }
}
# @FUNCTION: postinst_sources
# @USAGE:
# @DESCRIPTION:
# Sources post installation function.
# see inline comments
postinst_sources() {
# if we have USE=symlink, then force K_SYMLINK=1
use symlink && K_SYMLINK=1
# We do support security on a deblobbed kernel, bug #555878.
# If some particular kernel version doesn't have security
# supported because of USE=deblob or otherwise, one can still
# set K_SECURITY_UNSUPPORTED on a per ebuild basis.
#[[ ${K_DEBLOB_AVAILABLE} == 1 ]] && \
# use deblob && \
# K_SECURITY_UNSUPPORTED=deblob
# if we are to forcably symlink, delete it if it already exists first.
if [[ ${K_SYMLINK} -gt 0 ]]; then
if [[ -e ${EROOT%/}/usr/src/linux && ! -L ${EROOT%/}/usr/src/linux ]] ; then
die "${EROOT%/}/usr/src/linux exist and is not a symlink"
fi
ln -snf linux-${KV_FULL} "${EROOT%/}"/usr/src/linux || die
fi
# Don't forget to make directory for sysfs
[[ ! -d ${EROOT%/}/sys ]] && kernel_is 2 6 && { mkdir "${EROOT%/}"/sys || die ; }
elog "If you are upgrading from a previous kernel, you may be interested"
elog "in the following document:"
elog " - General upgrade guide: https://wiki.gentoo.org/wiki/Kernel/Upgrade"
# 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_EXTRAELOG is set then lets display it now
if [[ -n ${K_EXTRAELOG} ]]; then
echo ${K_EXTRAELOG} | fmt |
while read -s ELINE; do elog "${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
# optionally display security unsupported message
# Start with why
if [[ -n ${K_SECURITY_UNSUPPORTED} ]]; then
ewarn "${PN} is UNSUPPORTED by Gentoo Security."
fi
# And now the general message.
if [[ -n ${K_SECURITY_UNSUPPORTED} ]]; then
ewarn "This means that it is likely to be vulnerable to recent security issues."
ewarn "Upstream kernel developers recommend always running the latest "
ewarn "release of any current long term supported Linux kernel version."
ewarn "To see a list of these versions, their most current release and "
ewarn "long term support status, please go to https://www.kernel.org ."
ewarn "For specific information on why this kernel is unsupported, please read:"
ewarn "https://wiki.gentoo.org/wiki/Project:Kernel_Security"
fi