On 01/13/2013 12:17 PM, Jan Kiszka wrote:
> On 2013-01-12 18:12, Gilles Chanteperdrix wrote:
>> On 01/09/2013 02:47 PM, Jan Kiszka wrote:
>>
>>> Only remove files from the target directory of patch_link if they are
>>> missing in Xenomai AND are actually symbolic links. This is required
>>> when merging Xenomai directories into non-empty kernel dirs.
>>>
>>> Signed-off-by: Jan Kiszka <[email protected]>
>>> ---
>>>
>>> This is not required for the current patch workload but helps us in 2.6
>>> with integrating ftrace (we patch into include/trace/events there).
>>> Would reduce our queue length by one if this could be merged
>>> nevertheless.
>>
>>
>> Despite the fact that it is a one-liner, I do not understand what this
>> patch does, and I am not sure it is not going to break things.
>
> One way to install Xenomai into a kernel source tree is by adding
> symbolic links to the individual source files. In preparation of this
> step, the prepare-kernel script first purges all files from affected
> directories that are not present in the Xenomai sources (anymore). That
> works fine for our current Xenomai dirs as they are exclusively used but
> fails once we have to patch dirs that are also used by the original
> kernel (like the cited trace event dir).
The thing I do not understand is why Xenomai would patch the trace event
dir? This is the I-pipe's job.
--
Gilles.
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