Re: pahole regression: -a no longer works?

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Em Sat, Jun 27, 2009 at 11:44:01AM -0400, Samuel Bronson escreveu:
> Oops, I sent this to just Arnaldo the first time... sorry, Arnaldo!
> 
> On Sat, Jun 27, 2009 at 10:44 AM, Arnaldo Carvalho de
> Melo<acme@xxxxxxxxxxxxxxxxxx> wrote:
> 
> > What about my suggestion to change the proposed patch to check if it is
> > running on a debian system and if so to avoid checking for libebl?
> 
> Well, that wouldn't really help me with the bisection, though now that

I see, you would have to apply the patch at each bisection point and
remove it before going forward...

But anyway, you don't need to bisect it now, I've fixed it already :)
Please do a git pull and check if everything is ok now.

> I think about it I could have done that on one of the machines in my
> school's CS lab, where I had to build the elfutils libraries myself
> anyway...
 
> Anyway, about that idea: Debian hasn't always lacked libebl -- rolling
> it into libdw is a fairly recent thing, and back when it existed, both
>  libdw and libebl were provided as static libraries, so on systems
> that still have it, it will probably be necessary to link it in. Not
> to mention that having to conditionalize this on the distribution
> feels kind of icky, especially considering how hard-to-follow the
> REDHAT/FEDORA conditional already is.
> 
> Speaking of the REDHAT/FEDORA conditional,
> 
>   (a) why doesn't it have a comment explaining what it's for? -- that
> is, what is different on redhat/fedora, and what it does to compensate
> for them

I'll add the comment now
 
>   (b) why is it *after* the check for the "dwfl_module_build_id"
> symbol, so that the REDHAT/FEDORA stuff can't fix up the missing
> variables and allow the symbol check a chance to run?

lemme check...

- Arnaldo
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