Re: Event tracing support on m68k

Ezequiel Garcia <[email protected]>
Newsgroups gmane.linux.uclinux.devel,gmane.linux.ports.m68k
Message-ID <CALF0-+WrgcJWHkMsCoD4YHz+Q=Uqu4fkPoZ6JuufLuQ29JTotw@mail.gmail.com>
On Mon, Oct 22, 2012 at 11:36 AM, Andreas Schwab <[email protected]> wrote:
> Ezequiel Garcia <[email protected]> writes:
>
>> While trying to trace an m68k (without MMU) platform, I discovered
>> there's no "TRACING"
>> option on m68k menuconfig.
>>
>> * Am I doing anything wrong? Is there no tracing support on m68k?
>
> From Documentation/trace/ftrace-design.txt:
>
> Prerequisites
> -------------
>
> Ftrace relies on these features being implemented:
>  STACKTRACE_SUPPORT - implement save_stack_trace()
>  TRACE_IRQFLAGS_SUPPORT - implement include/asm/irqflags.h
>

Yeah, I read that too. Perhaps the real question should be:

Is it just not implemented on this platform or is there no way to implement it?
(and is it a wanted feature by the m68k users?)

But, I'm still confused on why this stuff is needed to get trace events.

Thanks!

    Ezequiel
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