Re: [PATCH][GIT PULL][v2.6.32] tracing/x86: Add check to detect GCCmessing with mcount prologue

[Thomas Gleixner]

On Tue, 24 Nov 2009, Jakub Jelinek wrote:

> On Tue, Nov 24, 2009 at 03:55:49PM +0100, Thomas Gleixner wrote:
> > > you should compile your code with -maccumulate-outgoing-args, and there's
> > > no need to use -mtune=generic.  Is that right?
> > 
> > Seems to work. What other side effects has that ?
> 
> Faster code, significant increase in code size though.  Note that on many
> architectures it is the only supported model.

Just checked on the affected -marchs. The increase in code size is
about 3% which is not that bad and definitely acceptable for the
tracing case. Will zap the -mtune=generic patch and use
-maccumulate-outgoing-args instead.

Thanks,

	tglx
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