Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_kprobe.c Create Date:2022-07-28 12:39:12
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:Internal register function - just handle k*probes and flags

Proto:static int __register_trace_kprobe(struct trace_kprobe *tk)

Type:int

Parameter:

TypeParameterName
struct trace_kprobe *tk
485  ret = security_locked_down(LOCKDOWN_KPROBES)
486  If ret Then Return ret
489  If trace_kprobe_is_registered(tk) Then Return -EINVAL
492  If within_notrace_func(tk) Then
493  pr_warn("Could not probe notrace function %s\n", trace_kprobe_symbol(tk))
495  Return -EINVAL
498  When i < nr_args cycle
499  ret = traceprobe_update_arg( & args[i])
500  If ret Then Return ret
505  If trace_probe_is_enabled( & tp) Then * Indicates various status flags. * Protected by kprobe_mutex after this kprobe is registered. &= ~probe is temporarily disabled
507  Else * Indicates various status flags. * Protected by kprobe_mutex after this kprobe is registered. |= probe is temporarily disabled
510  If trace_kprobe_is_return(tk) Then ret = register_kretprobe( & Use rp.kp for kprobe use )
512  Else ret = register_kprobe( & kp)
515  Return ret
Caller
NameDescribe
append_trace_kprobe
register_trace_kprobeRegister a trace_probe and probe_event
trace_kprobe_module_callbackModule notifier call back, checking event on the module