Staging
v0.8.1
https://github.com/torvalds/linux
Raw File
Tip revision: 3cea11cd5e3b00d91caf0b4730194039b45c5891 authored by Linus Torvalds on 01 November 2020, 22:43:51 UTC
Linux 5.10-rc2
Tip revision: 3cea11c
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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