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From: "Robin H. Johnson" <robbat2@gentoo.org>
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Subject: [gentoo-commits] proj/genkernel:master commit in: /
X-VCS-Repository: proj/genkernel
X-VCS-Files: ChangeLog gen_cmdline.sh gen_compile.sh gen_configkernel.sh gen_determineargs.sh gen_funcs.sh genkernel
X-VCS-Directories: /
X-VCS-Committer: robbat2
X-VCS-Committer-Name: Robin H. Johnson
X-VCS-Revision: 79d7fa1948de033bf5a2523fe8eca25d7f1f4438
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Date: Sat, 13 Oct 2012 21:49:03 +0000 (UTC)
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commit:     79d7fa1948de033bf5a2523fe8eca25d7f1f4438
Author:     Łukasz Stelmach <stlman <AT> poczta <DOT> fm>
AuthorDate: Thu Sep 13 20:44:45 2012 +0000
Commit:     Robin H. Johnson <robbat2 <AT> gentoo <DOT> org>
CommitDate: Sat Oct 13 21:48:19 2012 +0000
URL:        http://git.overlays.gentoo.org/gitweb/?p=proj/genkernel.git;a=commit;h=79d7fa19

Add --kernel-outputdir to save files outside the source tree.

Signed-off-by: Robin H. Johnson <robbat2 <AT> gentoo.org>

---
 ChangeLog            |    6 ++++++
 gen_cmdline.sh       |    5 +++++
 gen_compile.sh       |    6 +++++-
 gen_configkernel.sh  |   34 +++++++++++++++++-----------------
 gen_determineargs.sh |    1 +
 gen_funcs.sh         |    3 ++-
 genkernel            |    4 +++-
 7 files changed, 39 insertions(+), 20 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index d3e7158..8660462 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,6 +5,12 @@
 # Distributed under the GPL v2
 # $Id$
 
+  13 Oct 2012; Łukasz Stelmach <stlman@poczta.fm> gen_cmdline.sh,
+  gen_compile.sh, gen_configkernel.sh, gen_determineargs.sh, gen_funcs.sh,
+  genkernel:
+  Bug #435210 support external kernel output location, to allow pristine
+  source.
+
   13 Oct 2012; Robin H. Johnson <robbat2@gentoo.org> gen_compile.sh:
   Bug #397947: Run depmod on new modules to avoid need to run at every boot on
   unionfs systems, or systemd that never runs it.

diff --git a/gen_cmdline.sh b/gen_cmdline.sh
index a305201..858b850 100755
--- a/gen_cmdline.sh
+++ b/gen_cmdline.sh
@@ -63,6 +63,7 @@ longusage() {
   echo "	--kernel-make=<makeprg> GNU Make to use for kernel"
   echo "	--kernel-target=<t>	Override default make target (bzImage)"
   echo "	--kernel-binary=<path>	Override default kernel binary path (arch/foo/boot/bar)"
+  echo "	--kernel-outputdir=<path> Save output files outside the source tree."
 
   echo "	--utils-cc=<compiler>	Compiler to use for utilities"
   echo "	--utils-as=<assembler>	Assembler to use for utils"
@@ -214,6 +215,10 @@ parse_cmdline() {
 			CMD_KERNEL_CROSS_COMPILE=$(echo ${CMD_KERNEL_CROSS_COMPILE}|sed -e 's/.*[^-]$/&-/g')
 			print_info 2 "CMD_KERNEL_CROSS_COMPILE: ${CMD_KERNEL_CROSS_COMPILE}"
 			;;
+		--kernel-outputdir=*)
+			CMD_KERNEL_OUTPUTDIR=`parse_opt "$*"`
+			print_info 2 "CMD_KERNEL_OUTPUTDIR: ${CMD_KERNEL_OUTPUTDIR}"
+			;;
 		--utils-cc=*)
 			CMD_UTILS_CC=`parse_opt "$*"`
 			print_info 2 "CMD_UTILS_CC: ${CMD_UTILS_CC}"

diff --git a/gen_compile.sh b/gen_compile.sh
index c923967..87fd586 100755
--- a/gen_compile.sh
+++ b/gen_compile.sh
@@ -25,6 +25,10 @@ compile_kernel_args() {
 		then
 			ARGS="${ARGS} ARCH=\"${KERNEL_ARCH}\""
 		fi
+		if [ -n "${KERNEL_OUTPUTDIR}" ]
+		then
+			ARGS="${ARGS} O=\"${KERNEL_OUTPUTDIR}\""
+		fi
 	fi
 	echo -n "${ARGS}"
 }
@@ -318,7 +322,7 @@ compile_kernel() {
 		compile_generic "${KERNEL_MAKE_DIRECTIVE_2}" kernel
 	fi
 
-	local firmware_in_kernel_line=`fgrep CONFIG_FIRMWARE_IN_KERNEL "${KERNEL_DIR}"/.config`
+	local firmware_in_kernel_line=`fgrep CONFIG_FIRMWARE_IN_KERNEL "${KERNEL_OUTPUTDIR}"/.config`
 	if [ -n "${firmware_in_kernel_line}" -a "${firmware_in_kernel_line}" != CONFIG_FIRMWARE_IN_KERNEL=y ]
 	then
 		print_info 1 "        >> Installing firmware ('make firmware_install') due to CONFIG_FIRMWARE_IN_KERNEL != y..."

diff --git a/gen_configkernel.sh b/gen_configkernel.sh
index b0837dd..6271ca0 100755
--- a/gen_configkernel.sh
+++ b/gen_configkernel.sh
@@ -32,14 +32,14 @@ config_kernel() {
 	cd "${KERNEL_DIR}" || gen_die 'Could not switch to the kernel directory!'
 
 	# Backup current kernel .config
-	if isTrue "${MRPROPER}" || [ ! -f "${KERNEL_DIR}/.config" ]
+	if isTrue "${MRPROPER}" || [ ! -f "${KERNEL_OUTPUTDIR}/.config" ]
 	then
 		print_info 1 "kernel: Using config from ${KERNEL_CONFIG}"
-		if [ -f "${KERNEL_DIR}/.config" ]
+		if [ -f "${KERNEL_OUTPUTDIR}/.config" ]
 		then
 			NOW=`date +--%Y-%m-%d--%H-%M-%S`
-			cp "${KERNEL_DIR}/.config" "${KERNEL_DIR}/.config${NOW}.bak" \
-					|| gen_die "Could not backup kernel config (${KERNEL_DIR}/.config)"
+			cp "${KERNEL_OUTPUTDIR}/.config" "${KERNEL_OUTPUTDIR}/.config${NOW}.bak" \
+					|| gen_die "Could not backup kernel config (${KERNEL_OUTPUTDIR}/.config)"
 			print_info 1 "        Previous config backed up to .config${NOW}.bak"
 		fi
 	fi
@@ -54,14 +54,14 @@ config_kernel() {
 
 	# If we're not cleaning a la mrproper, then we don't want to try to overwrite the configs
 	# or we might remove configurations someone is trying to test.
-	if isTrue "${MRPROPER}" || [ ! -f "${KERNEL_DIR}/.config" ]
+	if isTrue "${MRPROPER}" || [ ! -f "${KERNEL_OUTPUTDIR}/.config" ]
 	then
 		local message='Could not copy configuration file!'
 		if [[ "$(file --brief --mime-type "${KERNEL_CONFIG}")" == application/x-gzip ]]; then
 			# Support --kernel-config=/proc/config.gz, mainly
-			zcat "${KERNEL_CONFIG}" > "${KERNEL_DIR}/.config" || gen_die "${message}"
+			zcat "${KERNEL_CONFIG}" > "${KERNEL_OUTPUTDIR}/.config" || gen_die "${message}"
 		else
-			cp "${KERNEL_CONFIG}" "${KERNEL_DIR}/.config" || gen_die "${message}"
+			cp "${KERNEL_CONFIG}" "${KERNEL_OUTPUTDIR}/.config" || gen_die "${message}"
 		fi
 	fi
 
@@ -106,21 +106,21 @@ config_kernel() {
 	then
 		# Make sure Ext2 support is on...
 		sed -e 's/#\? \?CONFIG_EXT2_FS[ =].*/CONFIG_EXT2_FS=y/g' \
-			-i ${KERNEL_DIR}/.config 
+			-i ${KERNEL_OUTPUTDIR}/.config
 	fi
 
 	# Make sure lvm modules are on if --lvm
 	if isTrue ${CMD_LVM}
 	then
-		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_BLK_DEV_DM is.*/CONFIG_BLK_DEV_DM=m/g'
-		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_DM_SNAPSHOT is.*/CONFIG_DM_SNAPSHOT=m/g'
-		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_DM_MIRROR is.*/CONFIG_DM_MIRROR=m/g'
+		sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_BLK_DEV_DM is.*/CONFIG_BLK_DEV_DM=m/g'
+		sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_DM_SNAPSHOT is.*/CONFIG_DM_SNAPSHOT=m/g'
+		sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_DM_MIRROR is.*/CONFIG_DM_MIRROR=m/g'
 	fi
 
 	# Make sure dmraid modules are on if --dmraid
 	if isTrue ${CMD_DMRAID}
 	then
-		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_BLK_DEV_DM is.*/CONFIG_BLK_DEV_DM=m/g'
+		sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_BLK_DEV_DM is.*/CONFIG_BLK_DEV_DM=m/g'
 	fi
 
 	# Make sure iSCSI modules are enabled in the kernel, if --iscsi
@@ -128,15 +128,15 @@ config_kernel() {
 	# CONFIG_ISCSI_TCP
 	if isTrue ${CMD_ISCSI}
 	then
-		sed -i ${KERNEL_DIR}/.config -e 's/\# CONFIG_ISCSI_TCP is not set/CONFIG_ISCSI_TCP=m/g'
-		sed -i ${KERNEL_DIR}/.config -e 's/\# CONFIG_SCSI_ISCSI_ATTRS is not set/CONFIG_SCSI_ISCSI_ATTRS=m/g'
+		sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/\# CONFIG_ISCSI_TCP is not set/CONFIG_ISCSI_TCP=m/g'
+		sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/\# CONFIG_SCSI_ISCSI_ATTRS is not set/CONFIG_SCSI_ISCSI_ATTRS=m/g'
 
-		sed -i ${KERNEL_DIR}/.config -e 's/CONFIG_ISCSI_TCP=y/CONFIG_ISCSI_TCP=m/g'
-		sed -i ${KERNEL_DIR}/.config -e 's/CONFIG_SCSI_ISCSI_ATTRS=y/CONFIG_SCSI_ISCSI_ATTRS=m/g'
+		sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/CONFIG_ISCSI_TCP=y/CONFIG_ISCSI_TCP=m/g'
+		sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/CONFIG_SCSI_ISCSI_ATTRS=y/CONFIG_SCSI_ISCSI_ATTRS=m/g'
 	fi
 
 	if isTrue ${SPLASH}
 	then
-		sed -i ${KERNEL_DIR}/.config -e 's/#\? \?CONFIG_FB_SPLASH is.*/CONFIG_FB_SPLASH=y/g'
+		sed -i ${KERNEL_OUTPUTDIR}/.config -e 's/#\? \?CONFIG_FB_SPLASH is.*/CONFIG_FB_SPLASH=y/g'
 	fi
 }

diff --git a/gen_determineargs.sh b/gen_determineargs.sh
index 92a6458..eb822b3 100755
--- a/gen_determineargs.sh
+++ b/gen_determineargs.sh
@@ -90,6 +90,7 @@ determine_real_args() {
 	set_config_with_override STRING KERNEL_CROSS_COMPILE CMD_KERNEL_CROSS_COMPILE
 	set_config_with_override STRING UTILS_CROSS_COMPILE  CMD_UTILS_CROSS_COMPILE
 	set_config_with_override STRING BOOTDIR              CMD_BOOTDIR              "/boot"
+	set_config_with_override STRING KERNEL_OUTPUTDIR     CMD_KERNEL_OUTPUTDIR     "${DEFAULT_KERNEL_SOURCE}"
 	set_config_with_override STRING MODPROBEDIR          CMD_MODPROBEDIR          "/etc/modprobe.d"
 
 	set_config_with_override BOOL   SPLASH               CMD_SPLASH

diff --git a/gen_funcs.sh b/gen_funcs.sh
index 48a3382..4f0a0fc 100755
--- a/gen_funcs.sh
+++ b/gen_funcs.sh
@@ -298,6 +298,7 @@ copy_image_with_preserve() {
 
 	# Old product might be a different version.  If so, we need to read
 	# the symlink to see what it's name is, if there are symlinks.
+	cd ${KERNEL_OUTPUTDIR}
 	if [ "${SYMLINK}" = '1' ]
 	then
  		print_info 4 "automatically managing symlinks and old images." 1 0
@@ -508,7 +509,7 @@ find_kernel_binary() {
 	local kernel_binary=$*
 	local curdir=$(pwd)
 
-	cd "${KERNEL_DIR}"
+	cd "${KERNEL_OUTPUTDIR}"
 	for i in ${kernel_binary}
 	do
 		if [ -e "${i}" ]

diff --git a/genkernel b/genkernel
index 2c1a62d..1630cd6 100755
--- a/genkernel
+++ b/genkernel
@@ -236,7 +236,9 @@ then
 	then
 		print_info 1 "Copying config for successful build to /etc/kernels/kernel-config-${ARCH}-${KV}"
 		[ ! -e '/etc/kernels' ] && mkdir -p /etc/kernels
-		cp "${KERNEL_DIR}/.config" "/etc/kernels/kernel-config-${ARCH}-${KV}"
+		cp "${KERNEL_OUTPUTDIR}/.config" "/etc/kernels/kernel-config-${ARCH}-${KV}" || \
+			print_warning "Unable to copy the kernel configuration file."
+			# Just a warning because ordinary users are not allowed to write in /etc
 	fi
 fi