[LITMUS^RT] Using feather trace

[ayoade gbadebo]

Hi Hiroyuki,
I could see feather trace config when I disabled CONFIG_RELOCATABLE.
Thank you.
Msc Project with Dr Cong Liu
University of Texas Dallas.



On Tue, Sep 10, 2013 at 6:50 PM, Hiroyuki Chishiro <chishiro at cs.unc.edu>wrote:

>
> Hi Gbadebo,
>
> Please disable "CONFIG_RELOCATABLE" in "Processor type and features" from
> your config.
> Because "config FEATHER_TRACE" depends on "!RELOCATABLE" in litmus/Kconfig.
>
> - Hiro
>
>
>
> On Wed, Sep 11, 2013 at 8:18 AM, Glenn Elliott <gelliott at cs.unc.edu>wrote:
>
>> Hi Gbadebo,
>>
>> Are you applying the patch to a vanilla Linux kernel, or are you cloning
>> Litmus directly from a litmus-rt repository?  I ask because
>> CONFIG_FEATHER_TRACE works just fine in the Litmus code I cloned from
>> github.
>>
>> Do "git clone git://github.com/LITMUS-RT/litmus-rt.git" to clone the
>> latest version of Litmus.
>>
>> That said, FEATHER_TRACE still appears in the litmus-et-2013.1.patch
>> file, so I don't know why anything would be broken.  Do you see the line
>> "config FEATHER_TRACE" in litmus/Kconfig?
>>
>> -Glenn
>>
>>
>> On Sep 10, 2013, at 6:44 PM, ayoade gbadebo <gbaduz at gmail.com> wrote:
>>
>> using ftcat gives me no such file as /dev/litmus/ft_trace gives error
>> could not open feather trace device(/dev/litmus/ft_trace).
>> Where can I enable feather trace as it is not showing in .config file for
>> kernel compilation after applying litmus-rt-2013.1.patch<http://www.litmus-rt.org/releases/2013.1/litmus-rt-2013.1.patch>
>> ?
>>
>>
>> On Tue, Sep 10, 2013 at 5:11 PM, ayoade gbadebo <gbaduz at gmail.com> wrote:
>>
>>> Hi,
>>> the config parameter for *CONFIG_FEATHER_TRACE=y*
>>> *is not showing in the .config file for the patch *
>>>
>>>    - litmus-rt-2013.1.patch<http://www.litmus-rt.org/releases/2013.1/litmus-rt-2013.1.patch>
>>>    .
>>>
>>>    I have the parameter for trace but I cant enable for feather trace.
>>>    Is there anything I am missing out?
>>>
>>>    Gbadebo
>>>
>>>
>>>
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>>
>>
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>>
>
>
> --
>
> Hiroyuki Chishiro
>
> Visiting Scholar
>
> Department of Computer Science
>
> The University of North Carolina at Chapel Hill
>
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>
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