Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_functions_graph.c Create Date:2022-07-28 12:13:14
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:Entry check for irq code* returns 1 if* - we are inside irq code* - we just entered irq code* retunns 0 if* - funcgraph-interrupts option is set* - we are not inside irq code

Proto:static int check_irq_entry(struct trace_iterator *iter, unsigned int flags, unsigned long addr, int depth)

Type:int

Parameter:

TypeParameterName
struct trace_iterator *iter
unsigned intflags
unsigned longaddr
intdepth
777  cpu = cpu
779  data = private
786  If flags & TRACE_GRAPH_PRINT_IRQS || Not data Then Return 0
790  depth_irq = & (({
790  ({
790  Do
790  const void * __vpp_verify = NULL
790  When 0 cycle
790  cpu_data
790  })
790  })->depth_irq)
795  If depth_irq >= 0 Then Return 1
798  If addr < __irqentry_text_start || addr >= __irqentry_text_end Then Return 0
805  depth_irq = depth
806  Return 1
Caller
NameDescribe
print_graph_entry