Re: [PATCH v3 09/14] perf cs-etm: Classify exception calls using the exception packet

[sashiko-bot@kernel.org]

> ETMv4 and ETE use the same exception number for SVC, HVC and SMC.
> Identify SVC by inspecting the instruction before the preferred return
> address in the exception packet.
> 
> Preserve the exception level and preferred return address from OpenCSD,
> and use them with the packet's ISA in cs_etm__is_syscall() and
> cs_etm__is_sync_exception(). This makes exception call classification
> independent of the preceding instruction range.
> 
> Name the exception address pref_ret_addr in an anonymous union shared
> with the range end_addr, keeping the packet layout unchanged. Name the
> cs_etm__is_svc_instr() address argument ret_addr and document that it
> checks the instruction immediately before the return address.
> 
> Reviewed-by: James Clark <james.clark@linaro.org>
> Signed-off-by: Leo Yan <leo.yan@arm.com>

Sashiko has reviewed this patch and found no issues.

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20261030-perf_cs_etm_fix_non_taken-v3-0-7629b52ab047@arm.com?part=9