函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_events_hist.c Create Date:2022-07-27 13:41:03
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：trace_action_find_var

函数原型：static struct hist_field *trace_action_find_var(struct hist_trigger_data *hist_data, struct action_data *data, char *system, char *event, char *var)

返回类型：struct hist_field

参数：

类型参数名称
struct hist_trigger_data *hist_data
struct action_data *data
char *system
char *event
char *var
4168  tr等于tr
4171  var自加
4173  hist_field等于find_target_event_var(hist_data, system, event, var)
4174  如果非hist_field则
4175  如果非system且handler恒等于HANDLER_ONMATCH则
4176  system等于event_system
4177  event等于event
4180  hist_field等于find_event_var(hist_data, system, event, var)
4183  如果非hist_field则hist_err(tr, HIST_ERR_PARAM_NOT_FOUND, errpos(var))
4186  返回:hist_field
调用者
名称描述
trace_action_create