[OE-core] [PATCH v3] lttng-modules: Add git based recipe

[zhe.he at windriver.com]

From: He Zhe <zhe.he at windriver.com>

The git based recipe is for those who want to build lttng-modules with bleeding
edge kernel, to avoid regularly backporting patches from upstream.

Note that PREFERRED_VERSION needs to be set to select the git recipe instead of
the tar ball one.

Signed-off-by: He Zhe <zhe.he at windriver.com>
---
v2: Correct a typo in SOB in 0001
v3: Use devupstream to make it more clean and clear

 meta/recipes-kernel/lttng/lttng-modules_2.10.9.bb | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-kernel/lttng/lttng-modules_2.10.9.bb b/meta/recipes-kernel/lttng/lttng-modules_2.10.9.bb
index 70a6843..dfd166a 100644
--- a/meta/recipes-kernel/lttng/lttng-modules_2.10.9.bb
+++ b/meta/recipes-kernel/lttng/lttng-modules_2.10.9.bb
@@ -11,7 +11,6 @@ inherit module
 
 COMPATIBLE_HOST = '(x86_64|i.86|powerpc|aarch64|mips|nios2|arm|riscv).*-linux'
 
-#https://lttng.org/files/lttng-modules/lttng-modules-2.10.7.tar.bz2
 SRC_URI = "https://lttng.org/files/${BPN}/${BPN}-${PV}.tar.bz2 \
            file://Makefile-Do-not-fail-if-CONFIG_TRACEPOINTS-is-not-en.patch \
            file://BUILD_RUNTIME_BUG_ON-vs-gcc7.patch \
@@ -34,3 +33,13 @@ python do_package_prepend() {
         bb.warn("%s: no modules were created; this may be due to CONFIG_TRACEPOINTS not being enabled in your kernel." % d.getVar('PN'))
 }
 
+BBCLASSEXTEND = "devupstream:target"
+LIC_FILES_CHKSUM_class-devupstream = "file://LICENSE;md5=3f882d431dc0f32f1f44c0707aa41128"
+DEFAULT_PREFERENCE_class-devupstream = "-1"
+SRC_URI_class-devupstream = "git://git.lttng.org/lttng-modules;branch=master \
+           file://Makefile-Do-not-fail-if-CONFIG_TRACEPOINTS-is-not-en.patch \
+           file://BUILD_RUNTIME_BUG_ON-vs-gcc7.patch \
+           "
+SRCREV_class-devupstream = "${AUTOREV}"
+PV_class-devupstream = "2.11.0-rc+git${SRCPV}"
+S_class-devupstream = "${WORKDIR}/git"
-- 
2.7.4