[U-Boot] [PATCH v5 0/4] Buffer overruns in printf

[Simon Glass]

Hi Wolfgang,

On Tue, Nov 1, 2011 at 6:18 PM, Simon Glass <sjg at chromium.org> wrote:
> Hi Wolfgang,
>
> On Tue, Nov 1, 2011 at 2:21 PM, Wolfgang Denk <wd at denx.de> wrote:
>> Dear Simon Glass,
>>
>> In message <CAPnjgZ2wW3tvGjxWgkVr0PHLr2Ttj8abtPc4aiyk=tgnpsSk3g at mail.gmail.com> you wrote:
>>>
>>> I have suggested making these functions available by default, and
>>> having CONFIG_NO_SYS_VSNPRINT to remove them. The rationale is that it
>>
>> This makes little sense to me.  We don't need an opt out here, but an
>> opt in instead.  Otherwise you willprobably see a number of builds
>> breaking due to the increased code size.
>
> OK I can change this to CONFIG_SYS_VSNPRINT easily enough.

I have done this and sent a new patch series (v6). It does not break
any boards so far as I can tell. The code size increase on ARM is
about 4 bytes and on PPC is 32 bytes. We can reduce this to closer to
zero but it involves #ifdef hassle - please see the patch here:

http://patchwork.ozlabs.org/patch/120352/

Regards,
Simon