Re: MIPS Function Tracer question
From: Steven Rostedt
Date: Mon Dec 03 2012 - 12:50:54 EST
On Mon, 2012-12-03 at 17:13 +0100, Ralf Baechle wrote:
> On Mon, Dec 03, 2012 at 09:40:48AM -0500, Steven Rostedt wrote:
> > The issue is with x86. Gcc wont compile if you have -pg and
> > -fomit-frame-pointer on x86. I originally forced function tracing to
> > select FRAME_POINTER, but because now on x86 with -mfentry, -pg no
> > longer requires frame pointers being set, I just let -pg complain one
> > way or the other. I believe that gcc by default will not add frame
> > pointers. Thus adding function tracing just prevents
> > -fomit-frame-pointer from being set, and if -pg requires frame pointers
> > it will automatically enable them otherwise they should not be enabled.
> On architectures such as MIPS where a frame pointer is not required for
> debugging -O and higher imply -fomit-frame-pointer.
Then this shouldn't be an issue for MIPS.
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