函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace.c Create Date:2022-07-27 13:03:33
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：call_filter_check_discard

函数原型：int call_filter_check_discard(struct trace_event_call *call, void *rec, struct ring_buffer *buffer, struct ring_buffer_event *event)

返回类型：int

参数：

类型参数名称
struct trace_event_call *call
void *rec
struct ring_buffer *buffer
struct ring_buffer_event *event
344  如果此条件成立可能性小(为编译器优化)( static flags of different events & TRACE_EVENT_FL_FILTERED)且非filter_match_preds(filter, rec)则
346  __trace_event_discard_commit(buffer, event)
347  返回:1
350  返回:0
调用者
名称描述
trace_function
__ftrace_trace_stack
trace_vbprintkrace_vbprintk - write binary msg to tracing buffer*@ip: The address of the caller*@fmt: The string format to write to the buffer*@args: Arguments for @fmt
__trace_array_vprintk
tracing_sched_switch_trace
tracing_sched_wakeup_trace
trace_hwlat_sample
__trace_mmiotrace_rw
__trace_mmiotrace_map
__trace_graph_entry
__trace_graph_return