On Fri, 11 Jul 2025 09:43:21 +0100
David Laight [off-list ref] wrote:
On Mon, 07 Jul 2025 21:22:52 -0400
Steven Rostedt [off-list ref] wrote:
quoted
From: Josh Poimboeuf <jpoimboe@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/20250701184939.026626626@goodmis.org (local)
-- Steve