Re: [RFC] gcc feature request: Moving blocks into sections

From: Steven Rostedt
Date: Mon Aug 05 2013 - 15:16:45 EST

On Mon, 2013-08-05 at 12:04 -0700, Andi Kleen wrote:
> Steven Rostedt <rostedt@xxxxxxxxxxx> writes:
> Can't you just use -freorder-blocks-and-partition?

Yeah, I'm familiar with this option.

> This should already partition unlikely blocks into a
> different section. Just a single one of course.
> FWIW the disadvantage is that multiple code sections tends
> to break various older dwarf unwinders, as it needs
> dwarf3 latest'n'greatest.

If the option was so good, I would expect everyone would be using it ;-)

I'm mainly only concerned with the tracepoints. I'm asking to be able to
do this with just the tracepoint code, and affect nobody else.

-- Steve

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