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selftests/livepatch: introduce tests

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Add a few livepatch modules and simple target modules that the included
regression suite can run tests against:

  - basic livepatching (multiple patches, atomic replace)
  - pre/post (un)patch callbacks
  - shadow variable API

Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Tested-by: Miroslav Benes <mbenes@suse.cz>
Tested-by: Alice Ferrazzi <alice.ferrazzi@gmail.com>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Joe Lawrence 2019-01-09 13:43:29 +01:00 • committed by Jiri Kosina
parent d67a537209
commit a2818ee4dc
20 changed files with 1740 additions and 485 deletions
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24
lib/livepatch/test_klp_callbacks_mod.c Normal file
View file

@ -0,0 +1,24 @@
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/kernel.h>
static int test_klp_callbacks_mod_init(void)
{
pr_info("%s\n", __func__);
return 0;
}
static void test_klp_callbacks_mod_exit(void)
{
pr_info("%s\n", __func__);
}
module_init(test_klp_callbacks_mod_init);
module_exit(test_klp_callbacks_mod_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Joe Lawrence <joe.lawrence@redhat.com>");
MODULE_DESCRIPTION("Livepatch test: target module");