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 13:41:58
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：parse_actions

函数原型：static int parse_actions(struct hist_trigger_data *hist_data)

返回类型：int

参数：

类型参数名称
struct hist_trigger_data *hist_data
4898  tr等于tr
4901  ret等于0
4905  以i小于n_actions循环
4906  str等于action_str[i]
4908  如果len等于str_has_prefix - Test if a string has a given prefix*@str: The string to test*@prefix: The string to see if @str starts with* A common way to test a prefix of a string is to do:* strncmp(str, prefix, sizeof(prefix) - 1)* But this can lead to bugs due to 则
4909  action_str等于str加len
4911  data等于onmatch_parse(tr, action_str)
4912  如果是错误则
4913  ret等于错误
4914  退出
4916  否则如果len等于str_has_prefix - Test if a string has a given prefix*@str: The string to test*@prefix: The string to see if @str starts with* A common way to test a prefix of a string is to do:* strncmp(str, prefix, sizeof(prefix) - 1)* But this can lead to bugs due to 则
4917  action_str等于str加len
4919  data等于track_data_parse(hist_data, action_str, HANDLER_ONMAX)
4921  如果是错误则
4922  ret等于错误
4923  退出
4925  否则如果len等于str_has_prefix - Test if a string has a given prefix*@str: The string to test*@prefix: The string to see if @str starts with* A common way to test a prefix of a string is to do:* strncmp(str, prefix, sizeof(prefix) - 1)* But this can lead to bugs due to 则
4926  action_str等于str加len
4928  data等于track_data_parse(hist_data, action_str, HANDLER_ONCHANGE)
4930  如果是错误则
4931  ret等于错误
4932  退出
4934  否则
4935  ret等于负EINVAL
4936  退出
4939  actions[n_actions++]等于data
4942  返回:ret
调用者
名称描述
create_hist_data