[PATCH v2 09/14] perf cs-etm: Classify exception calls using the exception packet

[Leo Yan]

On Tue, Sep 29, 2026 at 03:08:42PM +0100, James Clark wrote:

[...]

> > @@ -174,6 +174,7 @@ struct cs_etm_packet {
> >   	enum cs_etm_sample_type sample_type;
> >   	enum cs_etm_isa isa;
> >   	u64 start_addr;
> > +	/* For exceptions: preferred return address, or CS_ETM_INVAL_ADDR. */
> >   	u64 end_addr;
> 
> Minor nit, but you could use a union. I don't know how clear re-using
> "end_addr" id for exception packets is when reading the code.
> 
>        union {
>            u64 end_addr; // Range packets
>            u64 pref_ret_addr; // Exception packets

Will do.