Split kernel into kernel-core and kernel-drivers subpackages

This creates kernel-core and kernel-drivers subpackages.  The kernel package
remains as a meta-package the requires both of the subpackages.  This allows
most installs to continue on as-is with upgrades working.

The contents of the kernel-core and kernel-drivers subpackages are determined
at build time through the filter-modules.sh script.  This script "removes"
pre-defined subsystems and modules and generates a filelist for the %files
section of each subpackage.  The contents of each are per-arch, with arch
override files taken into account.  This allows us to make the split useful
for varying arches.

1 files changed, 143 insertions, 0 deletions

diff --git a/filter-modules.sh b/filter-modules.sh
new file mode 100755
index 000000000..abe581278
--- /dev/null
+++ b/filter-modules.sh
@@ -0,0 +1,143 @@
+#! /bin/bash
+#
+# Called as filter-modules.sh list-of-modules Arch
+
+# This script filters the modules into the kernel-core and kernel-drivers
+# subpackages.  We list out subsystems/subdirs to prune from the installed
+# module directory.  What is left is put into the kernel-core package.  What is
+# pruned is contained in the kernel-drivers package.
+#
+# This file contains the default subsys/subdirs to prune from all architectures.
+# If an architecture needs to differ, we source a per-arch filter-<arch>.sh file
+# that contains the set of override lists to be used instead.  If a module or
+# subsys should be in kernel-drivers on all arches, please change the defaults
+# listed here.
+
+# Set the default dirs/modules to filter out
+driverdirs="atm auxdisplay bcma bluetooth fmc iio infiniband isdn leds media memstick message mfd mmc mtd nfc ntb pcmcia platform power ssb staging uio uwb"
+
+netdrvs="appletalk dsa hamradio ieee802154 irda ppp slip usb wireless"
+
+ethdrvs="3com adaptec alteon amd atheros broadcom cadence calxeda chelsio cisco dec dlink emulex icplus marvell mellanox neterion nvidia oki-semi packetengines qlogic rdc renesas sfc silan sis smsc stmicro sun tehuti ti wiznet xircom"
+
+scsidrvs="aacraid aic7xxx aic94xx be2iscsi bfa bnx2i bnx2fc csiostor cxgbi esas2r fcoe fnic isci libsas lpfc megaraid mpt2sas mpt3sas mvsas pm8001 qla2xxx qla4xxx sym53c8xx_2 ufs"
+
+ttydrvs="ipwireless"
+
+usbdrvs="atm wusbcore"
+
+fsdrvs="affs befs coda cramfs dlm ecryptfs hfs hfsplus isofs jfs minix ncpfs nilfs2 ocfs2 reiserfs romfs squashfs sysv ubifs udf ufs"
+
+netprots="appletalk atm ax25 batman-adv bluetooth dccp dsa ieee802154 irda l2tp mac80211 mac802154 netrom nfc rds rfkill rose sctp wireless"
+
+drmdrvs="ast gma500 mgag200 via nouveau"
+
+singlemods="ntb_netdev iscsi_ibft iscsi_boot_sysfs iscsi_tcp megaraid pmcraid qla1280 9pnet_rdma svcrdma xprtrdma hid-picolcd hid-prodikeys hwa-hc hwpoison-inject hid-sensor-hub"
+
+# Grab the arch-specific filter list overrides
+source ./filter-$2.sh
+
+filter_dir() {
+	filelist=$1
+	dir=$2
+
+	grep -v -e "${dir}/" ${filelist} > ${filelist}.tmp
+
+	if [ $? -ne 0 ]
+	then
+		echo "Couldn't remove ${dir}.  Skipping."
+	else
+		grep -e "${dir}/" ${filelist} >> k-d.list
+		mv ${filelist}.tmp $filelist
+	fi
+	
+	return 0
+}
+
+filter_ko() {
+	filelist=$1
+	mod=$2
+
+	grep -v -e "${mod}.ko" ${filelist} > ${filelist}.tmp
+
+	if [ $? -ne 0 ]
+	then
+		echo "Couldn't remove ${mod}.ko  Skipping."
+	else
+		grep -e "${mod}.ko" ${filelist} >> k-d.list
+		mv ${filelist}.tmp $filelist
+	fi
+	
+	return 0
+}
+
+# Filter the drivers/ subsystems
+for subsys in ${driverdirs}
+do
+	filter_dir $1 drivers/${subsys}
+done
+
+# Filter the networking drivers
+for netdrv in ${netdrvs}
+do
+	filter_dir $1 drivers/net/${netdrv}
+done
+
+# Filter the ethernet drivers
+for eth in ${ethdrvs}
+do
+	filter_dir $1 drivers/net/ethernet/${eth}
+done
+
+# SCSI
+for scsi in ${scsidrvs}
+do
+	filter_dir $1 drivers/scsi/${scsi}
+done
+
+# TTY
+for tty in ${ttydrvs}
+do
+	filter_dir $1 drivers/tty/${tty}
+done
+
+# USB
+for usb in ${usbdrvs}
+do
+	filter_dir $1 drivers/usb/${usb}
+done
+
+# Filesystems
+for fs in ${fsdrvs}
+do
+	filter_dir $1 fs/${fs}
+done
+
+# Network protocols
+for prot in ${netprots}
+do
+	filter_dir $1 kernel/net/${prot}
+done
+
+# DRM
+for drm in ${drmdrvs}
+do
+	filter_dir $1 drivers/gpu/drm/${drm}
+done
+
+# Just kill sound.
+filter_dir $1 kernel/sound
+
+# Now go through and filter any single .ko files that might have deps on the
+# things we filtered above
+for mod in ${singlemods}
+do
+        filter_ko $1 ${mod}
+done
+
+# Go through our generated drivers list and remove the .ko files.  We'll
+# restore them later.
+for mod in `cat k-d.list`
+do
+	rm -rf $mod
+done