43 lines
1003 B
C
43 lines
1003 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2019-2022 Red Hat, Inc. Daniel Bristot de Oliveira <bristot@kernel.org>
|
|
*
|
|
* Printk RV reactor:
|
|
* Prints the exception msg to the kernel message log.
|
|
*/
|
|
#include <linux/ftrace.h>
|
|
#include <linux/tracepoint.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/rv.h>
|
|
|
|
static void rv_printk_reaction(char *msg)
|
|
{
|
|
printk_deferred(msg);
|
|
}
|
|
|
|
static struct rv_reactor rv_printk = {
|
|
.name = "printk",
|
|
.description = "prints the exception msg to the kernel message log.",
|
|
.react = rv_printk_reaction
|
|
};
|
|
|
|
static int __init register_react_printk(void)
|
|
{
|
|
rv_register_reactor(&rv_printk);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit unregister_react_printk(void)
|
|
{
|
|
rv_unregister_reactor(&rv_printk);
|
|
}
|
|
|
|
module_init(register_react_printk);
|
|
module_exit(unregister_react_printk);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Daniel Bristot de Oliveira");
|
|
MODULE_DESCRIPTION("printk rv reactor: printk if an exception is hit.");
|