Re: [PATCH 1/2] perf thread: Fix live-session detection in thread__e_machine()

When the per-thread e_machine cannot be determined from the DSOs in the
thread's maps, thread__e_machine_endian() decides between reading
/proc/<pid>/exe and falling back to the recorded session environment:

	bool is_live = machine->machines == NULL;

	if (!is_live) {
		/* Check if the session has a data file. */
		struct perf_session *session = container_of(...);

		is_live = !!session->data;
	}

Neither half of that works.

[ ... ]
machine__findnew_guest_code(), which machine__resolve() only calls when
!machine__is_host(machine).

Fixes: 70351029b556 ("perf thread: Add support for reading the e_machine type for a thread")
Signed-off-by: Matt Turner <mattst88@gmail.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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