[LITMUS^RT] Feather Trace tools

[Andrea Bastoni]

Hi,

On Thu, Jan 30, 2014 at 8:37 AM, Chandrasekaran Sivakumar
<chandru.a6 at gmail.com> wrote:
> Hi,
>
> I couldnt find ft_trace device in /dev/litmus. These options were not
> available when I did 'make menuconfig'
>
> LITMUS^RT > Tracing > Feather-Trace Infrastructure (CONFIG_FEATHER_TRACE)
> LITMUS^RT > Tracing > Record timestamps for overhead measurements
> (CONFIG_SCHED_OVERHEAD_TRACE)
> LITMUS^RT > Tracing > Buffer size for Feather-Trace overhead data
> (CONFIG_SCHED_OVERHEAD_TRACE_SHIFT)
>
> So I checked litmus/litmusrt/Kconfig..
> It had only this,
>
> #
> # For a description of the syntax of this configuration file,
> # see Documentation/kbuild/kconfig-language.txt.
> #
> mainmenu "Linux/$ARCH $KERNELVERSION Kernel Configuration"

I believe you're looking at the main Kconfig file.

Please take a look at the Kconfig file located in the litmus/ subdirectory.

"""
## litmus-rt$ head litmus/Kconfig
menu "LITMUS^RT"

menu "Scheduling"

config PLUGIN_CEDF
        bool "Clustered-EDF"
        depends on X86 && SYSFS
        default y
        help
          Include the Clustered EDF (C-EDF) plugin in the kernel.
"""

Best Regards,
- Andrea

>
> config SRCARCH
> string
> option env="SRCARCH"
>
> source "arch/$SRCARCH/Kconfig"
>
> Am I looking at the wrong file ?
>
> Regards,
> chandru
>
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