Re-order libraries in parallel to netstart.

While netstart is busy setting up the network and waiting for a
default route we can already start with reordering libraries since
this does not depend on running network, speeding things up.

Idea & input deraadt
Input & OK kn

1 files changed, 16 insertions, 5 deletions

diff --git a/etc/rc b/etc/rc
index 6edf56e48ef..7ea51ef2427 100644
--- a/etc/rc
+++ b/etc/rc
@@ -1,4 +1,4 @@
-#	$OpenBSD: rc,v 1.565 2022/11/28 14:56:31 cheloha Exp $
+#	$OpenBSD: rc,v 1.566 2022/12/26 18:57:50 florian Exp $
 
 # System startup script run by init on autoboot or after single-user.
 # Output and error are redirected to console by init, and the console is the
@@ -188,7 +188,7 @@ reorder_libs() {
 		fi
 	done
 
-	echo -n 'reordering libraries:'
+	echo 'reordering libraries:'
 
 	# Remount the (read-only) filesystems in _ro_list as read-write.
 	for _mp in $_ro_list; do
@@ -215,7 +215,7 @@ reorder_libs() {
 		cd $_tmpdir
 		ar x $_liba
 		if [[ $_lib == ld.so ]]; then
-			echo -n " $_lib"
+			echo " $_lib"
 			args="-g -x -e _dl_start \
 			    --version-script=Symbols.map --shared -Bsymbolic \
 			    --no-undefined"
@@ -226,7 +226,7 @@ reorder_libs() {
 			$_install /usr/libexec/ld.so /usr/libexec/ld.so.save
 			$_install ld.so.test $_lib_dir/ld.so
 		else
-			echo -n " ${_lib%%.*}"
+			echo " ${_lib%%.*}"
 			cc -shared -o $_lib $(ls *.so | sort -R) $(<.ldadd)
 			[[ -s $_lib ]] && file $_lib | fgrep -q 'shared object'
 			LD_BIND_NOW=1 LD_LIBRARY_PATH=$_tmpdir awk 'BEGIN {exit 0}'
@@ -251,6 +251,15 @@ reorder_libs() {
 	fi
 }
 
+# Read output of reorder_libs co-process and output on console.
+wait_reorder_libs() {
+	local _line
+	while IFS= read -p _line; do
+		echo -n "$_line"
+	done
+	echo
+}
+
 # Run rc.* script and email output to root.
 # Usage: run_upgrade_script firsttime|sysmerge
 run_upgrade_script() {
@@ -452,6 +461,8 @@ mount -s /var >/dev/null 2>&1		# cannot be on NFS
 mount -s /var/log >/dev/null 2>&1	# cannot be on NFS
 mount -s /usr >/dev/null 2>&1		# if NFS, fstab must use IP address
 
+reorder_libs 2>&1 |&
+
 start_daemon slaacd dhcpleased resolvd >/dev/null 2>&1
 
 echo 'starting network'
@@ -466,7 +477,7 @@ start_daemon unwind >/dev/null 2>&1
 
 random_seed
 
-reorder_libs
+wait_reorder_libs
 
 # Load pf rules and bring up pfsync interface.
 if [[ $pf != NO ]]; then