Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\fgraph.c Create Date:2022-07-28 12:17:52
Last Modify:2020-03-17 20:08:56 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:The function graph tracer should only trace the functions defined* by set_ftrace_filter and set_ftrace_notrace

Proto:void update_function_graph_func(void)

Type:void

Parameter:Nothing

465  bool do_test = false
473  Traverse the ftrace_global_list, invoking all entries. The reason that we* can use rcu_dereference_raw_check() is that elements removed from this list* are simply leaked, so there is no need to interact with a grace-period* mechanism(op, ftrace_ops_list)
474  If op != global_ops && op != graph_ops && op != ftrace_list_end Then
476  do_test = true
478  Go to out
481  out :
482  If do_test Then ftrace_graph_entry = ftrace_graph_entry_test
484  Else ftrace_graph_entry = __ftrace_graph_entry
Caller
NameDescribe
register_ftrace_graph
update_ftrace_function