__kretprobe_trace

Name:Kretprobe handler

Proto:static inline __attribute__((__always_inline__)) void __kretprobe_trace_func(struct trace_kprobe *tk, struct kretprobe_instance *ri, struct pt_regs *regs, struct trace_event_file *trace_file)

Type:void

Parameter:

Type	Parameter	Name
struct trace_kprobe *	tk
struct kretprobe_instance *	ri
struct pt_regs *	regs
struct trace_event_file *	trace_file

1230

call = trace_probe_event_call( & tp)

1232

WARN_ON(call != event_call)

1234

If race_trigger_soft_disabled - do triggers and test if soft disabled*@file: The file pointer of the event to test* If any triggers without filters are attached to this event, they* will be called here Then Return

1237

local_save_flags(irq_flags)

1238

pc = We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users* that think a non-zero value indicates we cannot preempt.

1240

dsize = Sum up total data length for dynamic arraies (strings)

1241

size = size of entry + trace entry size + dsize

1243

event = trace_event_buffer_lock_reserve( & buffer, trace_file, type, size, irq_flags, pc)

1246

If Not event Then Return

1249

entry = g_buffer_event_data - return the data of the event*@event: the event to get the data from

1250

func = location of the probe point

1251

ret_ip = ret_addr

1252

Store the value of each argument

1254

vent_trigger_unlock_commit_regs - handle triggers and finish event commit*@file: The file pointer assoctiated to the event*@buffer: The ring buffer that the event is being written to*@event: The event meta data in the ring buffer*@entry: The event

**Caller**
Name	Describe
kretprobe_trace_func

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Function report