brintos

brintos / linux-shallow public Read only

0
0
Text · 1.1 KiB · aff0819 Raw
52 lines · c
1// SPDX-License-Identifier: GPL-2.02// Copyright (C) 2014 Seth Jennings <sjenning@redhat.com>3 4#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt5 6#include <linux/module.h>7#include <linux/kernel.h>8#include <linux/livepatch.h>9 10#include <linux/seq_file.h>11static int livepatch_cmdline_proc_show(struct seq_file *m, void *v)12{13	seq_printf(m, "%s: %s\n", THIS_MODULE->name,14		   "this has been live patched");15	return 0;16}17 18static struct klp_func funcs[] = {19	{20		.old_name = "cmdline_proc_show",21		.new_func = livepatch_cmdline_proc_show,22	}, { }23};24 25static struct klp_object objs[] = {26	{27		/* name being NULL means vmlinux */28		.funcs = funcs,29	}, { }30};31 32static struct klp_patch patch = {33	.mod = THIS_MODULE,34	.objs = objs,35};36 37static int test_klp_livepatch_init(void)38{39	return klp_enable_patch(&patch);40}41 42static void test_klp_livepatch_exit(void)43{44}45 46module_init(test_klp_livepatch_init);47module_exit(test_klp_livepatch_exit);48MODULE_LICENSE("GPL");49MODULE_INFO(livepatch, "Y");50MODULE_AUTHOR("Seth Jennings <sjenning@redhat.com>");51MODULE_DESCRIPTION("Livepatch test: livepatch module");52