Re: perf build failure on Linus's tree

From: Arnaud Lacombe
Date: Thu May 03 2012 - 23:02:36 EST


Hi,

On Thu, May 3, 2012 at 10:47 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, May 03, 2012 at 10:35:02PM -0400, Arnaud Lacombe wrote:
>> Hi,
>>
>> On Thu, May 3, 2012 at 10:29 PM, Arnaud Lacombe <lacombar@xxxxxxxxx> wrote:
>> > [...]
>> > [0]: http://pkgs.fedoraproject.org/gitweb/?p=flex.git;a=blob;f=flex-2.5.35-hardening.patch;h=7d608ea2371fa3295bdb8eb97c15eeb03029c02b;hb=HEAD
>> >
>> as a side note, this patch sounds more being about "silencing" than
>> "hardening"...
>
> That's nice, but I can build the perf version in 3.3 just fine, so
> something broke here (hint, build regression.)  Do I have to bisect it
> down to find the problem?
>
there is most likely nothing to bisect, `perf' seems to have never
required any parser before 3.4. The way the rest of the tools
(especially `kconfig', `genksyms' and `dtc') manage parsers is via
pre-generated .[ch]_shipped version of the lexer/tokenizer. It's been
working well for a long time as such. `perf' will certainly have to
follow the same path.

- Arnaud
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