Philippe Gerum authored Jan 02, 2021 and Jan Kiszka committed Jan 08, 2021

Unlike the I-pipe, Dovetail comes with no specific tracer, tracepoints
can be sent to common ftrace-based tracers, with the 'function' tracer
reporting Dovetail-specific information such as the current execution
stage, and the real & virtual interrupt states (hard disabled/enabled,
stalled/unstalled) for the current context.

In other words, ftrace's 'function' tracer with Dovetail is similar to
the I-pipe specific tracer.

Since we can use ftrace through the regular kernel interface with
Dovetail, the legacy trace interface can move to the I-pipe section.

No functional change is introduced.

Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>