sysctl: add seperate sysctl-x86_64.conf and move x86_64 only parameters

Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>

config/etc/sysctl-x86_64.conf

@@ -0,0 +1,3 @@
+# Improve KASLR effectiveness for mmap
+vm.mmap_rnd_bits = 32
+vm.mmap_rnd_compat_bits = 16

config/etc/sysctl.conf

@@ -45,10 +45,6 @@ kernel.kptr_restrict = 2
 # Avoid kernel memory address exposures via dmesg.
 kernel.dmesg_restrict = 1
 
-# Improve KASLR effectiveness for mmap
-vm.mmap_rnd_bits = 32
-vm.mmap_rnd_compat_bits = 16
-
 # Minimal preemption granularity for CPU-bound tasks:
 # (default: 1 msec#  (1 + ilog(ncpus)), units: nanoseconds)
 kernel.sched_min_granularity_ns = 10000000

config/rootfiles/common/stage2

@@ -42,6 +42,7 @@ etc/profile.d/umask.sh
 etc/resolv.conf
 etc/securetty
 etc/sysctl.conf
+#etc/sysctl-x86_64.conf
 etc/syslog.conf
 etc/system-release
 #home

config/rootfiles/common/x86_64/stage2

@@ -42,6 +42,7 @@ etc/profile.d/umask.sh
 etc/resolv.conf
 etc/securetty
 etc/sysctl.conf
+etc/sysctl-x86_64.conf
 etc/syslog.conf
 etc/system-release
 #home

config/rootfiles/core/135/filelists/files

@@ -9,6 +9,7 @@ etc/rc.d/init.d/functions
 etc/rc.d/init.d/leds
 etc/rc.d/init.d/networking/red.down/05-remove-dns-forwarders
 etc/rc.d/init.d/partresize
+etc/rc.d/init.d/sysctl
 etc/rc.d/init.d/unbound
 etc/sysctl.conf
 usr/sbin/setup

config/rootfiles/core/135/filelists/x86_64/sysctl-x86_64

@@ -0,0 +1 @@
+etc/sysctl-x86_64.conf

src/initscripts/system/sysctl

@@ -24,6 +24,18 @@ case "${1}" in
 			sysctl -q -p
 			evaluate_retval
 		fi
+		arch=`uname -m`
+		case "${arch}" in
+			i?86 )	arch="i586";
+				;;
+			armv*)	arch="armv5tel":
+				;;
+		esac
+		if [ -f "/etc/sysctl-${arch}.conf" ]; then
+			boot_mesg "Setting ${arch}-kernel runtime parameters..."
+			sysctl -q -p /etc/sysctl-${arch}.conf
+			evaluate_retval
+		fi
 		;;
 
 	status)