On Fri, 11 Jul 2025 09:43:21 +0100
David Laight <david.laight.li...@gmail.com> wrote:

> On Mon, 07 Jul 2025 21:22:52 -0400
> Steven Rostedt <rost...@kernel.org> wrote:
> 
> > From: Josh Poimboeuf <jpoim...@kernel.org>
> > 
> > Use ARCH_INIT_USER_FP_FRAME to describe how frame pointers are unwound
> > on x86, and enable CONFIG_HAVE_UNWIND_USER_FP accordingly so the
> > unwind_user interfaces can be used.  
> 
> How is that going to work?
> Pretty much all x86 userspace is compiled with bp as a general
> purpose register not a frame pointer.

Which is where this patch set comes in...

  
https://lore.kernel.org/linux-trace-kernel/20250701184939.026626...@goodmis.org

-- Steve

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