Re: [PATCH 2/2] Markers Implementation for Preempt RCU Boost Tracing

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* Frank Ch. Eigler <fche@xxxxxxxxxx> wrote:

> Hi -
> 
> On Wed, Jan 02, 2008 at 06:01:57PM +0100, Ingo Molnar wrote:
> > [...]
> > well, -freorder-blocks seems to be default-enabled at -O2 on gcc 4.2, so 
> > we should already be getting that, right?
> 
> Right.
> 
> > [...]  So it would be nice if we could collect all this offline code
> > and stuff it away into another portion of the kernel image. (or,
> > into another portion of the object file - which would still be good
> > enough in practice)
> 
> That would be the -freorder-blocks-and-partition flag, as proposed by 
> Arjan two Februarys ago.  I don't see any traces of Andi's overriding 
> "-fno-reorder-blocks" in the current linus tree, so maybe it's time to 
> resurrect this one:
> 
> http://readlist.com/lists/vger.kernel.org/linux-kernel/39/196123.html

hm, that gives:

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but yeah, i had the impression that gcc couldnt yet do this. Not a 
showstopper, but it would be nice to initiate the gcc side of things ...

	Ingo
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