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kernel-2.eclass: Convert eclass to use documentation standards

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This commit is contained in:
Mike Pagano
2016-12-04 16:20:55 -05:00
parent 24be101b15
commit 7facbc2ced
1 changed files with 332 additions and 108 deletions
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eclass/kernel-2.eclass
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@@ -2,89 +2,199 @@
# Distributed under the terms of the GNU General Public License v2
# $Id$
# Description: kernel.eclass rewrite for a clean base regarding the 2.6
# series of kernel with back-compatibility for 2.4
#
# Original author: John Mylchreest <johnm@gentoo.org>
# Maintainer: kernel@gentoo.org
#
# @ECLASS: kernel-2.eclass
# @MAINTAINER:
# Gentoo Kernel project <kernel@gentoo.org>
# @AUTHOR:
# John Mylchreest <johnm@gentoo.org>
# Mike Pagano <mpagano@gentoo.org>
# <so many, many others, please add yourself>
# @BLURB: Eclass for kernel packages
# @DESCRIPTION:
# This ia 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.
# 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_NOUSEPR - if this is set then EXTRAVERSION will not include the
# anything based on ${PR}.
# 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_EXTRAELOG - same as K_EXTRAEINFO except using elog instead of einfo
# K_EXTRAEWARN - same as K_EXTRAEINFO except using ewarn instead of einfo
# K_SYMLINK - if this is set, then forcably create symlink anyway
#
# K_BASE_VER - for git-sources, declare the base version this patch is
# based off of.
# 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", "extras" or "experimental".
# K_EXP_GENPATCHES_PULL - If set, we pull "experimental" regardless of the USE FLAG
# but expect the ebuild maintainer to use K_EXP_GENPATCHES_LIST.
# K_EXP_GENPATCHES_NOUSE - If set, no USE flag will be provided for "experimental";
# as a result the user cannot choose to apply those patches.
# K_EXP_GENPATCHES_LIST - A list of patches to pick from "experimental" to apply when
# the USE flag is unset and K_EXP_GENPATCHES_PULL is set.
# K_FROM_GIT - 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.
#
# 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
# K_SECURITY_UNSUPPORTED- If set, this kernel is unsupported by Gentoo Security
# K_DEBLOB_AVAILABLE - 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".
# K_DEBLOB_TAG - This will be the version of deblob script. It's a upstream SVN tag
# such asw -gnu or -gnu1.
# K_PREDEBLOBBED - This kernel was already deblobbed elsewhere.
# If false, either optional deblobbing will be available
# or the license will note the inclusion of freedist
# code.
# K_LONGTERM - 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
# K_KDBUS_AVAILABLE - If set, the ebuild contains the option of installing the
# kdbus patch. This patch is not installed without the 'kdbus'
# and 'experimental' use flags.
# H_SUPPORTEDARCH - this should be a space separated list of ARCH's which
# can be supported by the headers ebuild
# @ECLASS-VARIABLE: K_USEPV
# @DEFAULT_UNSET
# @DESCRIPTION:
# 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
# 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
# @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: 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
# @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 :)
# added functionality:
# unipatch - a flexible, singular method to extract, add and remove patches.
# @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 freedist 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: K_KDBUS_AVAILABLE
# @DEFAULT_UNSET
# @DESCRIPTION:
# If set, the ebuild contains the option of installing the
# kdbus patch. This patch is not installed without the 'kdbus'
# and 'experimental' use flags.
# @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;
@@ -129,11 +239,13 @@ RESTRICT="binchecks strip"
# set LINUX_HOSTCFLAGS if not already set
: ${LINUX_HOSTCFLAGS:="-Wall -Wstrict-prototypes -Os -fomit-frame-pointer -I${S}/include"}
# debugging functions
#==============================================================
# @FUNCTION: debug-print-kernel2-variables
# @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 \
@@ -142,8 +254,10 @@ debug-print-kernel2-variables() {
done
}
#Eclass functions only from here onwards ...
#==============================================================
# @FUNCTION: handle_genpatches
# @DESCRIPTION:
# add genpatches to list of patches to apply uf wanted
handle_genpatches() {
local tarball want_unipatch_list
[[ -z ${K_WANT_GENPATCHES} || -z ${K_GENPATCHES_VER} ]] && return 1
@@ -197,11 +311,13 @@ handle_genpatches() {
done
}
# @FUNCTION: detect_version
# @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() {
# 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)
# We've already run, so nothing to do here.
[[ -n ${KV_FULL} ]] && return 0
@@ -426,6 +542,12 @@ detect_version() {
handle_genpatches
}
# @FUNCTION: kernel_is
# @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.
@@ -453,10 +575,16 @@ kernel_is() {
[ ${test} ${operator} ${value} ]
}
# @FUNCTION: kernel_is_2_4
# @DESCRIPTION:
# return true if kernel is version 2.4
kernel_is_2_4() {
kernel_is 2 4
}
# @FUNCTION: kernel_is_2_6
# @DESCRIPTION:
# return true if kernel is version 2.6
kernel_is_2_6() {
kernel_is 2 6 || kernel_is 2 5
}
@@ -547,17 +675,27 @@ elif [[ ${ETYPE} == headers ]]; then
fi
# Cross-compile support functions
#==============================================================
# @FUNCTION: kernel_header_destdir
# @DESCRIPTION:
# return header destination directory
kernel_header_destdir() {
[[ ${CTARGET} == ${CHOST} ]] \
&& echo /usr/include \
|| echo /usr/${CTARGET}/usr/include
}
# @FUNCTION: cross_pre_c_headers
# @DESCRIPTION:
# set use if neccesary for cross compile support
cross_pre_c_headers() {
use crosscompile_opts_headers-only && [[ ${CHOST} != ${CTARGET} ]]
}
# @FUNCTION: env_setup_xmakeopts
# @DESCRIPTION:
# set the ARCH/CROSS_COMPILE when cross compiling
env_setup_xmakeopts() {
# Kernel ARCH != portage ARCH
export KARCH=$(tc-arch-kernel)
@@ -573,8 +711,10 @@ env_setup_xmakeopts() {
export xmakeopts
}
# Unpack functions
#==============================================================
# @FUNCTION: unpack_2_4
# @DESCRIPTION:
# unpack and generate .config for 2.4 kernels
unpack_2_4() {
# this file is required for other things to build properly,
# so we autogenerate it
@@ -584,6 +724,10 @@ unpack_2_4() {
echo ">>> version.h compiled successfully."
}
# @FUNCTION: unpack_2_6
# @DESCRIPTION:
# unpack and generate .config for 2.6 kernels
unpack_2_6() {
# this file is required for other things to build properly, so we
# autogenerate it ... generate a .config to keep version.h build from
@@ -605,6 +749,10 @@ unpack_2_6() {
rm -f .config >/dev/null
}
# @FUNCTION: universal_unpack
# @DESCRIPTION:
# unpack kernel sources
universal_unpack() {
debug-print "Inside universal_unpack"
@@ -644,21 +792,32 @@ universal_unpack() {
}
# @FUNCTION: unpack_set_extraversion
# @DESCRIPTION:
# handle EXTRAVERSION
unpack_set_extraversion() {
cd "${S}"
sed -i -e "s:^\(EXTRAVERSION =\).*:\1 ${EXTRAVERSION}:" Makefile
cd "${OLDPWD}"
}
# @FUNCTION: unpack_fix_install_path
# @DESCRIPTION:
# 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
}
# Compile Functions
#==============================================================
# @FUNCTION: compile_headers
# @DESCRIPTION:
# header compilation
compile_headers() {
env_setup_xmakeopts
@@ -711,9 +870,12 @@ compile_headers() {
fi
}
# @FUNCTION: compile_headers_tweak_config
# @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() {
# some targets can be very very picky, so let's finesse the
# .config based upon any info we may have
case ${CTARGET} in
sh*)
sed -i '/CONFIG_CPU_SH/d' .config || die
@@ -726,15 +888,22 @@ compile_headers_tweak_config() {
}
# install functions
#==============================================================
# @FUNCTION: install_universal
# @DESCRIPTION:
# Fix permissions in tarball
install_universal() {
# Fix silly permissions in tarball
cd "${WORKDIR}"
chown -R 0:0 * >& /dev/null
chmod -R a+r-w+X,u+w *
cd ${OLDPWD}
}
# @FUNCTION: install_headers
# @DESCRIPTION:
# Install headers
install_headers() {
local ddir=$(kernel_header_destdir)
@@ -770,6 +939,10 @@ install_headers() {
popd >/dev/null
}
# @FUNCTION: install_sources
# @DESCRIPTION:
# Install sources
install_sources() {
local file
@@ -804,16 +977,21 @@ install_sources() {
fi
}
# pkg_preinst functions
#==============================================================
# @FUNCTION: preinst_headers
# @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; }
}
# pkg_postinst functions
#==============================================================
# @FUNCTION: postinst_sources
# @DESCRIPTION:
# Sources post installation function.
# see inline comments
postinst_sources() {
local MAKELINK=0
@@ -902,7 +1080,11 @@ postinst_sources() {
}
# pkg_setup functions
#==============================================================
# @FUNCTION: setup_headers
# @DESCRIPTION:
# Determine if ${PN} supports arch
setup_headers() {
[[ -z ${H_SUPPORTEDARCH} ]] && H_SUPPORTEDARCH=${PN/-*/}
for i in ${H_SUPPORTEDARCH}; do
@@ -918,8 +1100,10 @@ setup_headers() {
fi
}
# unipatch
#==============================================================
# @FUNCTION: unipatch
# @DESCRIPTION:
# Universal function that will apply patches to source
unipatch() {
local i x y z extention PIPE_CMD UNIPATCH_DROP KPATCH_DIR PATCH_DEPTH ELINE
local STRICT_COUNT PATCH_LEVEL myLC_ALL myLANG
@@ -936,7 +1120,8 @@ unipatch() {
# We're gonna need it when doing patches with a predefined patchlevel
eshopts_push -s extglob
# This function will unpack all passed tarballs, add any passed patches, and remove any passed patchnumbers
# 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.
@@ -1178,6 +1363,8 @@ unipatch() {
eshopts_pop
}
# @FUNCTION: getfilevar
# @DESCRIPTION:
# getfilevar accepts 2 vars as follows:
# getfilevar <VARIABLE> <CONFIGFILE>
# pulled from linux-info
@@ -1204,10 +1391,13 @@ getfilevar() {
fi
}
# @FUNCTION: detect_arch
# @DESCRIPTION:
# This function sets ARCH_URI and ARCH_PATCH
# with the neccessary info for the arch sepecific compatibility
# patchsets.
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
@@ -1234,9 +1424,12 @@ detect_arch() {
done
}
# @FUNCTION: headers___fix
# @DESCRIPTION:
# Voodoo to partially fix broken upstream headers.
# note: do not put inline/asm/volatile together (breaks "inline asm volatile")
headers___fix() {
# Voodoo to partially fix broken upstream headers.
# note: do not put inline/asm/volatile together (breaks "inline asm volatile")
sed -i \
-e '/^\#define.*_TYPES_H/{:loop n; bloop}' \
-e 's:\<\([us]\(8\|16\|32\|64\)\)\>:__\1:g' \
@@ -1246,8 +1439,10 @@ headers___fix() {
"$@"
}
# common functions
#==============================================================
# @FUNCTION: kernel-2_src_unpack()
# @DESCRIPTION:
# unpack sources, handle genpatches, deblob
kernel-2_src_unpack() {
universal_unpack
debug-print "Doing unipatch"
@@ -1308,6 +1503,7 @@ kernel-2_src_unpack() {
# @FUNCTION: kernel-2_src_prepare
# @DESCRIPTION:
# Apply any user patches
kernel-2_src_prepare() {
debug-print "Applying any user patches"
@@ -1319,6 +1515,10 @@ kernel-2_src_prepare() {
esac
}
# @FUNCTION: kernel-2_src_compile
# @DESCRIPTION:
# conpile headers or run deblob script
kernel-2_src_compile() {
cd "${S}"
[[ ${ETYPE} == headers ]] && compile_headers
@@ -1330,6 +1530,8 @@ kernel-2_src_compile() {
fi
}
# @FUNCTION: kernel-2_src_test
# @DESCRIPTION:
# if you leave it to the default src_test, it will run make to
# find whether test/check targets are present; since "make test"
# actually produces a few support files, they are installed even
@@ -1338,20 +1540,37 @@ kernel-2_src_compile() {
# Avoid this altogether by making the function moot.
kernel-2_src_test() { :; }
# @FUNCTION: kernel-2_pkg_preinst
# @DESCRIPTION:
# if ETYPE = headers, call preinst_headers
kernel-2_pkg_preinst() {
[[ ${ETYPE} == headers ]] && preinst_headers
}
# @FUNCTION: kernel-2_src_install
# @DESCRIPTION:
# Install headers or sources dependant on ETYPE
kernel-2_src_install() {
install_universal
[[ ${ETYPE} == headers ]] && install_headers
[[ ${ETYPE} == sources ]] && install_sources
}
# @FUNCTION: kernel-2_pkg_postinst
# @DESCRIPTION:
# call postinst_sources for ETYPE = sources
kernel-2_pkg_postinst() {
[[ ${ETYPE} == sources ]] && postinst_sources
}
# @FUNCTION: kernel-2_pkg_setup
# @DESCRIPTION:
# check for supported kernel version, die if ETYPE is unknown, call setup_headers
# if necessary
kernel-2_pkg_setup() {
if kernel_is 2 4; then
if [[ $(gcc-major-version) -ge 4 ]] ; then
@@ -1377,6 +1596,11 @@ kernel-2_pkg_setup() {
[[ ${ETYPE} == sources ]] && echo ">>> Preparing to unpack ..."
}
# @FUNCTION: kernel-2_pkg_postrm
# @DESCRIPTION:
# Notify the user that after a depclean, there may be sources
# left behind that need to be manually cleaned
kernel-2_pkg_postrm() {
# This warning only makes sense for kernel sources.
[[ ${ETYPE} == headers ]] && return 0