From ad0df8153f83d2cbe3b114e335661c4cf9245335 Mon Sep 17 00:00:00 2001
From: Mike Pagano <mpagano@gentoo.org>
Date: Thu, 9 Sep 2021 08:00:04 -0400
Subject: kernel-2.eclass: Remove < 2.6 support for kernel headers

The functionality removed is only to support kernels
< 2.6  These kernels have long been removed from the tree

Detail:
Remove the function compile_headers as it is not called
for kernels > 2.6.18 because that's when the build target
headers_install was introduced.
Remove supporting function compile_headers_tweak_config.
Additionally, remove 2.6 support from install_headers.

Signed-off-by: Mike Pagano <mpagano@gentoo.org>
---
 eclass/kernel-2.eclass | 112 +++----------------------------------------------
 1 file changed, 5 insertions(+), 107 deletions(-)

(limited to 'eclass')

diff --git a/eclass/kernel-2.eclass b/eclass/kernel-2.eclass
index ef70e250c179..983ba916931d 100644
--- a/eclass/kernel-2.eclass
+++ b/eclass/kernel-2.eclass
@@ -759,83 +759,6 @@ 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
@@ -856,36 +779,12 @@ install_universal() {
 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 "${D}" -name '*.orig' -exec rm -f {} \; || die
+	env_setup_xmakeopts
+	emake headers_install INSTALL_HDR_PATH="${ED%/}"${ddir}/.. ${xmakeopts}
 
-	popd >/dev/null || die
+	# let other packages install some of these headers
+	rm -rf "${ED%/}"${ddir}/scsi || die #glibc/uclibc/etc...
+	return 0
 }
 
 # @FUNCTION: install_sources
@@ -1479,7 +1378,6 @@ kernel-2_src_prepare() {
 
 kernel-2_src_compile() {
 	cd "${S}" || die
-	[[ ${ETYPE} == headers ]] && compile_headers
 
 	if [[ ${K_DEBLOB_AVAILABLE} == 1 ]] && use deblob; then
 		einfo ">>> Running deblob script ..."
-- 
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