Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1// SPDX-License-Identifier: GPL-2.0
2
3#include <linux/error-injection.h>
4#include <linux/kprobes.h>
5
6void override_function_with_return(struct pt_regs *regs)
7{
8 /*
9 * 'regs' represents the state on entry of a predefined function in
10 * the kernel/module and which is captured on a kprobe.
11 *
12 * When kprobe returns back from exception it will override the end
13 * of probed function and directly return to the predefined
14 * function's caller.
15 */
16 instruction_pointer_set(regs, procedure_link_pointer(regs));
17}
18NOKPROBE_SYMBOL(override_function_with_return);