[PATCH v2 22/29] ktap: add events parse code(tools/ktap/kp_parse_events.c)

Function 'kp_parse_events' parse event string passed by user, and return events description structure, it covers: 1). tracepoint Search tracepoint name through '/sys/kernel/debug/tracing/events/', and get event id. 2). kprobe Search symbol name through '/proc/kallsyms',

[PATCH v2 22/29] ktap: add events parse code(tools/ktap/kp_parse_events.c)

Function 'kp_parse_events' parse event string passed by user, and return events description structure, it covers: 1). tracepoint Search tracepoint name through '/sys/kernel/debug/tracing/events/', and get event id. 2). kprobe Search symbol name through '/proc/kallsyms',