[PATCH 0/5] ftrace: support binary record (V2)

[Lai Jiangshan]

Binary record will save memory in trace buffer, and more events
can be recorded in buffer.

This patch add infrastructure for supporting binary record.

This infrastructure records events by binary and shows events
by human readable text.

And add a API ftrace_bprintk() using this infrastructure.
(This API is exactly the same as ftrace_printk(), beside it
record the date by binary)

changed from V1:
1) not use Python style. Formates typically have 2~8 '%',
   using Python style make no sense, and gcc can not check parameters
   when we use Python style.
2) enable ftrace trace markers.

patches are for tracing/ftrace.

Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
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