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

[Richard Purdie]

On Wed, 2019-06-12 at 19:12 +0800, zhe.he at windriver.com wrote:
> 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"

OE-Core can't access the network by default so this will need to be a
specific SRCREV which you can set to AUTOREV in local config if that
makes sense.

I've sent a separate email to openembedded-architecture about a better
syntax for some of this but that isn't anything wrong with this patch,
more just the way devupstream works.

Cheers,

Richard