函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\ptrace.h Create Date:2022-07-27 06:49:36
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:ptrace_event_pid - possibly stop for a ptrace event notification*@event: %PTRACE_EVENT_* value to report*@pid: process identifier for %PTRACE_GETEVENTMSG to return* Check whether @event is enabled and, if so, report @event and @pid* to the ptrace parent

函数原型:static inline void ptrace_event_pid(int event, struct pid *pid)

返回类型:void

参数:

类型参数名称
intevent
struct pid *pid
186  message等于0
189  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
190  ns等于取进程的空间
191  如果nsmessage等于pid_nr_ns(pid, ns)
193  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
195  ptrace_event - possibly stop for a ptrace event notification*@event: %PTRACE_EVENT_* value to report*@message: value for %PTRACE_GETEVENTMSG to return* Check whether @event is enabled and, if so, report @event and @message* to the ptrace parent.
调用者
名称描述
_do_fork分裂进程