函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_irqsoff.c Create Date:2022-07-27 13:15:57
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：preempt_trace

函数原型：static inline int preempt_trace(int pc)

返回类型：int

参数：

类型参数名称
intpc
47  返回:trace_type按位与TRACER_PREEMPT_OFF且pc
调用者
名称描述
start_critical_timingsstart and stop critical timings used to for stoppage (in idle)
stop_critical_timings
tracer_hardirqs_onWe are only interested in hardirq on/off events:
tracer_hardirqs_off
tracer_preempt_on
tracer_preempt_off