Messages in this thread | | | Date | Wed, 2 Jan 2008 21:10:32 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH 2/2] Markers Implementation for Preempt RCU Boost Tracing |
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* Frank Ch. Eigler <fche@redhat.com> 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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