Re: [PATCH 2/4] x86/kprobes: Fix frame pointer annotations

From: Steven Rostedt
Date: Thu May 09 2019 - 14:37:48 EST

On Thu, 9 May 2019 20:26:22 +0200
Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> Still, maybe we can wrap the thing in a .macro and reuse things that
> way. Because I really hate there are at least 3 (x2 for x86_64) copies
> of this around.

I'm good with something like this. Have a single place that does the
pt_regs saving would be great. Then I could separate ftrace_regs_caller
from ftrace_caller, and simplify them both, as I would only need to
make sure frame pointers still work for ftrace_caller, and
ftrace_regs_caller would depend on the macro to make sure it works.

-- Steve