[Lucid][SRU] fsl-imx51: Turn on CONFIG_FUNCTION_TRACER option will encounter a linking error

[AceLan Kao]

Dear all,

Can anyone help to review this cherry-pick, it was pending for a month?
We need this cherry-pick to enable FTRACE option, so that we could do
some kernel debugging.

Best regards,
AceLan Kao.

2010/5/4 Chase Douglas <chase.douglas at canonical.com>:
> On Tue, May 4, 2010 at 12:52 AM, Bryan Wu <bryan.wu at canonical.com> wrote:
>> On 05/04/2010 12:02 PM, AceLan Kao wrote:
>>> CONFIG_FUNCTION_PROFILER=y
>>
>> this one is not enabled in our x86 master branch config.
>
> A patch to turn this on for the x86 kernels was just applied and
> should go out in the next SRU release. I suggest enabling it for ARM
> as well. It only affects things when you enable it at runtime.
>
>>> CONFIG_FTRACE_SELFTEST=y
>>> CONFIG_FTRACE_STARTUP_TEST=y
>>
>> These 2 testing configs are not enabled in master either, so it might not be
>> turned on as default in fsl-imx51.
>
> I don't think these are necessary either.
>
>> Maybe we need to go through those FTRACE configs in our UDS-M.
>
> I agree, although I believe the x86 configuration is pretty good now.
> If it's mirrored for ARM then we're probably set.
>
> -- Chase
>
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-- 
Chia-Lin Kao(AceLan)
http://blog.acelan.idv.tw/
E-Mail: acelan.kaoATcanonical.com (s/AT/@/)