[RESEND v3] arm64: Add USER_STACKTRACE support

[Will Deacon]

On Tue, 19 Dec 2023 10:22:29 +0800, chenqiwu wrote:
> Currently, userstacktrace is unsupported for ftrace and uprobe
> tracers on arm64. This patch uses the perf_callchain_user() code
> as blueprint to implement the arch_stack_walk_user() which add
> userstacktrace support on arm64.
> Meanwhile, we can use arch_stack_walk_user() to simplify the
> implementation of perf_callchain_user().
> This patch is tested pass with ftrace, uprobe and perf tracers
> profiling userstacktrace cases.
> 
> [...]

Applied to will (for-next/perf), thanks!

[1/1] arm64: Add USER_STACKTRACE support
      https://git.kernel.org/will/c/410e471f8746

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev