35 lines
794 B
C
35 lines
794 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* This module emits "Hello, world" on printk when loaded.
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*
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* It is designed to be used for basic evaluation of the module loading
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* subsystem (for example when validating module signing/verification). It
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* lacks any extra dependencies, and will not normally be loaded by the
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* system unless explicitly requested by name.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/printk.h>
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static int __init test_module_init(void)
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{
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pr_warn("Hello, world\n");
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return 0;
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}
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module_init(test_module_init);
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static void __exit test_module_exit(void)
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{
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pr_warn("Goodbye\n");
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}
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module_exit(test_module_exit);
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MODULE_AUTHOR("Kees Cook <keescook@chromium.org>");
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MODULE_LICENSE("GPL");
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