mirror of https://gitee.com/openkylin/linux.git
19 lines
563 B
C
19 lines
563 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
|
|
#include <linux/error-injection.h>
|
|
#include <linux/kprobes.h>
|
|
|
|
void override_function_with_return(struct pt_regs *regs)
|
|
{
|
|
/*
|
|
* 'regs' represents the state on entry of a predefined function in
|
|
* the kernel/module and which is captured on a kprobe.
|
|
*
|
|
* When kprobe returns back from exception it will override the end
|
|
* of probed function and directly return to the predefined
|
|
* function's caller.
|
|
*/
|
|
instruction_pointer_set(regs, procedure_link_pointer(regs));
|
|
}
|
|
NOKPROBE_SYMBOL(override_function_with_return);
|