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v0.8.1
https://github.com/torvalds/linux
Raw File
Tip revision: d434405aaab7d0ebc516b68a8fc4100922d7f5ef authored by Linus Torvalds on 11 April 2021, 22:16:13 UTC
Linux 5.12-rc7
Tip revision: d434405
error-inject.c
// SPDX-License-Identifier: GPL-2.0+
#include <asm/ptrace.h>
#include <linux/error-injection.h>
#include <linux/kprobes.h>

void override_function_with_return(struct pt_regs *regs)
{
	/*
	 * Emulate 'br 14'. 'regs' is captured by kprobes on entry to some
	 * kernel function.
	 */
	regs->psw.addr = regs->gprs[14];
}
NOKPROBE_SYMBOL(override_function_with_return);
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