[poky] [PATCH] linux-yocto-2.6.37: Add debugfs and ftrace features to standard ktype meta-data

[Bruce Ashfield]

In message: [PATCH] linux-yocto-2.6.37: Add debugfs and ftrace features to standard ktype meta-data
on 03/01/2011 Darren Hart wrote:

> ftrace provides low impact tracing facilities and should be made
> available on the main kernel - as opposed to a debug or tracing
> kernel which often add enough overhead to mask subtle bugs.

I had similar changes to this queued up in preparation for 
feature merging into 2.6.37, but I've grabbed this instead
since it is standalone and tested. I've got it here and
will push it out tomorrow after some other minor things are
done.

Cheers,

Bruce

> 
> These features are available on the 2.6.34 yocto kernel.
> 
> Boot and trace-cmd tested on qemux86-64.
> 
> Signed-off-by: Darren Hart <darren at dvhart.com>
> CC: Bruce Ashfield <bruce.ashfield at windriver.com>
> CC: Tom Zanussi <tom.zanussi at intel.com>
> ---
>  meta/cfg/kernel-cache/features/debugfs/debugfs.cfg |    1 +
>  meta/cfg/kernel-cache/features/debugfs/debugfs.scc |    1 +
>  meta/cfg/kernel-cache/features/ftrace/ftrace.cfg   |    2 ++
>  meta/cfg/kernel-cache/features/ftrace/ftrace.scc   |    1 +
>  meta/cfg/kernel-cache/ktypes/standard/standard.scc |    4 ++++
>  5 files changed, 9 insertions(+), 0 deletions(-)
>  create mode 100644 meta/cfg/kernel-cache/features/debugfs/debugfs.cfg
>  create mode 100644 meta/cfg/kernel-cache/features/debugfs/debugfs.scc
>  create mode 100644 meta/cfg/kernel-cache/features/ftrace/ftrace.cfg
>  create mode 100644 meta/cfg/kernel-cache/features/ftrace/ftrace.scc
> 
> diff --git a/meta/cfg/kernel-cache/features/debugfs/debugfs.cfg b/meta/cfg/kernel-cache/features/debugfs/debugfs.cfg
> new file mode 100644
> index 0000000..39c2d26
> --- /dev/null
> +++ b/meta/cfg/kernel-cache/features/debugfs/debugfs.cfg
> @@ -0,0 +1 @@
> +CONFIG_DEBUG_FS=y
> diff --git a/meta/cfg/kernel-cache/features/debugfs/debugfs.scc b/meta/cfg/kernel-cache/features/debugfs/debugfs.scc
> new file mode 100644
> index 0000000..8f84947
> --- /dev/null
> +++ b/meta/cfg/kernel-cache/features/debugfs/debugfs.scc
> @@ -0,0 +1 @@
> +kconf non-hardware debugfs.cfg
> diff --git a/meta/cfg/kernel-cache/features/ftrace/ftrace.cfg b/meta/cfg/kernel-cache/features/ftrace/ftrace.cfg
> new file mode 100644
> index 0000000..bab800c
> --- /dev/null
> +++ b/meta/cfg/kernel-cache/features/ftrace/ftrace.cfg
> @@ -0,0 +1,2 @@
> +CONFIG_FUNCTION_TRACER=y
> +CONFIG_FUNCTION_GRAPH_TRACER=y
> diff --git a/meta/cfg/kernel-cache/features/ftrace/ftrace.scc b/meta/cfg/kernel-cache/features/ftrace/ftrace.scc
> new file mode 100644
> index 0000000..c92e30f
> --- /dev/null
> +++ b/meta/cfg/kernel-cache/features/ftrace/ftrace.scc
> @@ -0,0 +1 @@
> +kconf non-hardware ftrace.cfg
> diff --git a/meta/cfg/kernel-cache/ktypes/standard/standard.scc b/meta/cfg/kernel-cache/ktypes/standard/standard.scc
> index 9fa6c1e..8212465 100644
> --- a/meta/cfg/kernel-cache/ktypes/standard/standard.scc
> +++ b/meta/cfg/kernel-cache/ktypes/standard/standard.scc
> @@ -33,6 +33,10 @@ tag powerpc
>  
>  include features/hrt/hrt.scc
>  
> +include features/debugfs/debugfs.scc
> +
> +include features/ftrace/ftrace.scc
> +
>  include patches/wrs_patches.scc
>  
>  # #include features/ieee_float/ieee_float.scc
> -- 
> 1.7.1
> -- 
> Darren Hart
> Yocto Linux Kernel