Re: Anyone working on ftrace function graph support on ARM?

[Daniel Jacobowitz]

Sorry for the late reply, I'm way behind on list mail.

On Fri, Mar 27, 2009 at 12:58:08PM +0000, Catalin Marinas wrote:
> Anyway, the EABI toolchain I have (from CodeSourcery) generates
> something like below with -pg for both ARM and Thumb code (so that it
> doesn't rely on the frame pointer):
> 
> 	push	{lr}
> 	bl	__gnu_mcount_nc
> 
> I think this will be (was?) merged into the mainline gcc for ARM. The
> -pg option is still incompatible with -fomit-frame-pointer but maybe it
> shouldn't be anymore.

Was merged.  It'll be in GCC 4.4 and is in our current Lite releases;
it was created to solve precisely this problem.  It should be easy to
apply to an older GCC release if desired, but it's not in existing
FSF releases.

-- 
Daniel Jacobowitz
CodeSourcery
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/