Merge pull request #812 from kirawrath/upstart-support

Adding support to upstart systems.

Makefile.inc

@@ -15,6 +15,7 @@ LIBEXECDIR = $(DESTDIR)$(PREFIX)/$(LIBEXEC)/kpatch
 DATADIR    = $(DESTDIR)$(PREFIX)/share/kpatch
 MANDIR     = $(DESTDIR)$(PREFIX)/share/man/man1
 SYSTEMDDIR = $(DESTDIR)$(PREFIX)/lib/systemd/system
+UPSTARTDIR = $(DESTDIR)/etc/init
 
 # The core module is only supported on x86_64
 ifeq ($(ARCH),x86_64)

contrib/Makefile

@@ -6,8 +6,12 @@ install: all
 	$(INSTALL) -d $(SYSTEMDDIR)
 	$(INSTALL) -m 0644 kpatch.service $(SYSTEMDDIR)
 	sed -i 's~PREFIX~$(PREFIX)~' $(SYSTEMDDIR)/kpatch.service
+	$(INSTALL) -d $(UPSTARTDIR)
+	$(INSTALL) -m 0644 kpatch.conf $(UPSTARTDIR)
+	sed -i 's~PREFIX~$(PREFIX)~' $(UPSTARTDIR)/kpatch.conf
 
 uninstall:
 	$(RM) $(SYSTEMDDIR)/kpatch.service
+	$(RM) $(UPSTARTDIR)/kpatch.conf
 
 clean:

contrib/kpatch.conf

@@ -0,0 +1,29 @@
+# Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+
+# This upstart version lacks the ability of unloading modules with
+# the "stop" directive, as upstart does not support a feature like
+# systemd's RemainAfterExit option.
+
+
+description "Apply kpatch kernel patches"
+
+start on runlevel [2345] # Roughly equivalent to multi-user.target
+
+# We are not a daemon
+task
+
+# Emulating systemd's ConditionKernelCommandLine option.
+pre-start script
+    if [[ -e /proc/cmdline ]]
+    then
+        grep -q "kpatch.enable=0" /proc/cmdline && exit 1
+    else
+        dmesg | grep -q "Command line.*kpatch.enable=0" && exit 1
+    fi
+
+    exit 0
+end script
+
+# Main process (start)
+exec PREFIX/sbin/kpatch load --all
+

contrib/kpatch.spec

@@ -79,6 +79,7 @@ rm -rf %{buildroot}
 %{_sbindir}/kpatch
 %{_mandir}/man1/kpatch.1*
 %{_usr}/lib/systemd/system/*
+%{_sysconfdir}/init/kpatch.conf
 
 %files %{KVER}
 %defattr(-,root,root,-)