klp_ftrace_handler

Name:klp_ftrace_handler

Proto:static void notrace klp_ftrace_handler(unsigned long ip, unsigned long parent_ip, struct ftrace_ops *fops, struct pt_regs *regs)

Type:void

Parameter:

Type	Parameter	Name
unsigned long	ip
unsigned long	parent_ip
struct ftrace_ops *	fops
struct pt_regs *	regs

49

ops = container_of - cast a member of a structure out to the containing structure*@ptr: the pointer to the member.*@type: the type of the container struct this is embedded in.*@member: the name of the member within the struct.(fops, structklp_ops, fops)

55

preempt_disable_notrace()

57

func = list_first_or_null_rcu - get the first element from a list*@ptr: the list head to take the element from.*@type: the type of the struct this is embedded in.*@member: the name of the list_head within the struct.( & func_stack, structklp_func, stack_node)

65

If WARN_ON_ONCE(!func) Then Go to unlock

79

81

If Value for the false possibility is greater at compile time(transition) Then

89

91

patch_state = patch_state

93

WARN_ON_ONCE(patch_state == ask patch states )

95

If patch_state == KLP_UNPATCHED Then

101

func = list_entry_rcu - get the struct for this entry*@ptr: the &struct list_head pointer(next, structklp_func, stack_node)

104

If stack_node == func_stack Then Go to unlock

113

If nop Then Go to unlock

116

klp_arch_set_pc(regs, (unsignedlong)new_func)

118

119

preempt_enable_notrace()

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