函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_events.c Create Date:2022-07-27 13:25:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：trace_event_enable_cmd_record

函数原型：void trace_event_enable_cmd_record(bool enable)

返回类型：void

参数：

类型参数名称
boolenable
323  lockdep_assert_held( & event_mutex)
325  循环(tr = ({
325  __mptr等于链表后项
325  循环
325  当0循环
325  __mptr减__builtin_offsetof(typeof( * tr), list)
325  循环(tr = ({}); & tr->list != ( & ftrace_trace_arrays);tr = ({
325  __mptr等于链表后项
325  循环
325  当0循环
325  __mptr减__builtin_offsetof(typeof( * (tr)), list)
325  }))
325  循环(file = ({
325  __mptr等于链表后项
325  循环
325  当0循环
325  __mptr减__builtin_offsetof(typeof( * file), list)
325  循环(file = ({}); & file->list != ( & tr->events);file = ({
325  __mptr等于链表后项
325  循环
325  当0循环
325  __mptr减__builtin_offsetof(typeof( * (file)), list)
325  }))
327  如果非* 32 bit flags: * bit 0: enabled * bit 1: enabled cmd record * bit 2: enable/disable with the soft disable bit * bit 3: soft disabled * bit 4: trigger enabled * Note: The bits must be set atomically to prevent races * from other writers. Reads of flags do 按位与EVENT_FILE_FL_ENABLED的值则继续下一循环
330  如果enable则
333  否则
调用者
名称描述
set_tracer_flag