[PATCH v2] hw_breakpoint: fix single-stepping when using bpf_overflow_handler

[Will Deacon]

On Mon, 5 Jun 2023 12:19:23 -0700, Tomislav Novak wrote:
> Arm platforms use is_default_overflow_handler() to determine if the
> hw_breakpoint code should single-step over the breakpoint trigger or
> let the custom handler deal with it.
> 
> Since bpf_overflow_handler() currently isn't recognized as a default
> handler, attaching a BPF program to a PERF_TYPE_BREAKPOINT event causes
> it to keep firing (the instruction triggering the data abort exception
> is never skipped). For example:
> 
> [...]

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

[1/1] hw_breakpoint: fix single-stepping when using bpf_overflow_handler
      https://git.kernel.org/will/c/d11a69873d9a

Cheers,
-- 
Will

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