Re: [PATCH] Linux Kernel Markers 0.2 for Linux 2.6.17

From: S. P. Prasanna
Date: Tue Sep 19 2006 - 15:09:13 EST


On Tue, Sep 19, 2006 at 02:34:47PM -0400, Mathieu Desnoyers wrote:
[....]
> --- /dev/null
> +++ b/kernel/Kconfig.marker
> @@ -0,0 +1,75 @@
> +# Code markers configuration
> +
> +menu "Marker configuration"
> +
> +
> +config MARK
> + bool "Enable MARK code markers"
> + default y
> + help
> + Activate markers that can call printk or can be instrumented
> + dynamically.
> +
> +choice
> + prompt "MARK code marker behavior"
> + default MARK_KPROBE
> + depends on MARK
> + help
> + Configuration of markers that can call printk or can be
> + instrumented dynamically.
> +
> +config MARK_KPROBE
> + bool "KPROBE"
> + ---help---
> + Change markers for a symbol "__mark_modulename_event".
> +config MARK_JPROBE
> + bool "JPROBE"
> + ---help---
> + Change markers for a symbol "__mark_modulename_event"
> + and create a target for a high speed dynamic probe.
> +config MARK_FPROBE
> + bool "FPROBE"
> + ---help---
> + Change markers for a function call.
> +config MARK_PRINT
> + bool "PRINT"
> + ---help---
> + Call printk from the marker.
> +endchoice
> +
> +config MARK_NOPRINT
> + bool "Enable MARK_NOPRINT code markers"
> + default y
> + help
> + Activate markers that cannot call printk.
> +
> +choice
> + prompt "MARK_NOPRINT code marker behavior"
> + default MARK_NOPRINT_KPROBE
> + depends on MARK_NOPRINT
> + help
> + Configuration of markers that cannot call printk.
> +
> +config MARK_NOPRINT_KPROBE
> + bool "KPROBE"
> + ---help---
> + Change markers for a symbol "__mark_modulename_event".
> +config MARK_NOPRINT_JPROBE
> + bool "JPROBE"
> + ---help---
> + Change markers for a symbol "__mark_modulename_event"
> + and create a target for a high speed dynamic probe.
> +config MARK_NOPRINT_FPROBE
> + bool "FPROBE"
> + ---help---
> + Change markers for a function call.
> +endchoice
> +
> +config MARK_STATIC
> + bool "Enable MARK_STATIC code markers"
> + default n
> + help
> + Activate markers that cannot be instrumented dynamically. They will
> + generate function calls to each function-style probe.
> +
> +endmenu

I think having so many config options is not a good idea, you can group them
and reduce the number of config options.

Thanks
Prasanna

--
Prasanna S.P.
Linux Technology Center
India Software Labs, IBM Bangalore
Email: prasanna@xxxxxxxxxx
Ph: 91-80-41776329
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