[PATCH 1/5] Add generic debug option

Cong Wang xiyou.wangcong at gmail.com
Tue Mar 20 09:29:49 EDT 2012


On 03/15/2012 02:48 PM, Simon Horman wrote:
> On Tue, Mar 13, 2012 at 10:58:40AM +0800, Cong Wang wrote:
>> On 03/13/2012 08:21 AM, Simon Horman wrote:
>>> On Thu, Mar 08, 2012 at 02:39:38PM +0800, Cong Wang wrote:
>>>> Currently the debugging code is under #ifdef DEBUG, which
>>>> means when we want to debug, we have to re-compile the source
>>>> code with -DDEBUG. This is not convenient, we want to have
>>>> a generic --debug option so that we can enable debugging code
>>>> without re-compiling.
>>>>
>>>> This patch moves the arch-specific --debug to generic place
>>>> and moves code under #ifdef DEBUG to --debug on x86.
>>>>
>>>> BTW, the size of kexec binary increases very little after this patch.
>>>
>>> Hi Cong,
>>>
>>> In general I am happy with making kexec easier to use.  However, it would
>>> be nice not to make kexec-tools even bigger than it already is. Its size
>>> already seems to be an issue for some people on ARM at least.  Do you
>>> have some feeling for the change in binary size on architectures other than
>>> i386?
>>>
>>
>> Hi,
>>
>> I only tested the patches on x86 and ppc.
>>
>> Sorry I don't have a chance to test it on ARM, on ARM it just adds a
>> small function dump_memory_ranges(), if this would be a problem,
>> feel free to drop patch 3/5. :)
>
> Hi,
>
> As per my post to the ppc patch, it did not seem to compile for me.

I did compiling and run tests on ppc64 if you mean ppc32 by "ppc".

> I will push the remaining patches. For reference before and after
> sizes for the non-ppc architectures are as follows.
>

Ok, I will re-send the ppc patch soon. Thank you!



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