recipes-kernel: add kpatch dynamic kernel patching infrastructure

kpatch is a Linux dynamic kernel patching infrastructure
which allows you to patch a running kernel without
rebooting or restarting any processes

Currently it is enabled and tested on x86-64 systems,
although can be extended to PPC64 as well.

Signed-off-by: Ruslan Bilovol <rbilovol@cisco.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/meta-oe/recipes-kernel/kpatch/kpatch.inc b/meta-oe/recipes-kernel/kpatch/kpatch.inc
new file mode 100644
index 0000000000..b1e73e9542
--- /dev/null
+++ b/meta-oe/recipes-kernel/kpatch/kpatch.inc
@@ -0,0 +1,49 @@
+SUMMARY = "Linux dynamic kernel patching infrastructure"
+DESCRIPTION = "kpatch is a Linux dynamic kernel patching infrastructure which allows you to patch a running kernel without rebooting or restarting any processes."
+LICENSE = "GPLv2 & LGPLv2"
+DEPENDS = "elfutils bash"
+
+SRC_URI = "git://github.com/dynup/kpatch.git;protocol=https \
+        file://0001-kpatch-build-add-cross-compilation-support.patch \
+        file://0002-kpatch-build-allow-overriding-of-distro-name.patch \
+        "
+
+EXTRA_OEMAKE = " \
+        PREFIX=${prefix} \
+        BINDIR=${D}${bindir} \
+        SBINDIR=${D}${sbindir} \
+        LIBDIR=${D}${libdir} \
+        MANDIR=${D}${mandir}/man1 \
+        SYSTEMDDIR=${D}${systemd_system_unitdir} \
+        DESTDIR=${D} \
+        BUILDMOD=no \
+        CC='${CC}' \
+        "
+
+S = "${WORKDIR}/git"
+
+do_install () {
+        oe_runmake install
+}
+
+PACKAGES =+ "kpatch-build"
+PROVIDES += "kpatch-build"
+
+COMPATIBLE_HOST = "(x86_64).*-linux"
+
+RDEPENDS_${PN} = "bash binutils"
+RDEPENDS_kpatch-build = "bash glibc-utils"
+
+FILES_${PN} = " \
+        ${sbindir}/kpatch \
+        ${systemd_system_unitdir}/kpatch.service \
+        ${mandir}/man1/kpatch.1.gz \
+        "
+FILES_kpatch-build = " \
+        ${bindir}/kpatch-build \
+        ${libexecdir}/* \
+        ${datadir}/kpatch \
+        ${mandir}/man1/kpatch-build.1.gz \
+        "
+
+SYSTEMD_SERVICE_${PN} = "kpatch.service"