Hello World for linux Kernel Module

02_better_hello/hello.mod.c

@@ -0,0 +1,39 @@
+#include <linux/module.h>
+#define INCLUDE_VERMAGIC
+#include <linux/build-salt.h>
+#include <linux/elfnote-lto.h>
+#include <linux/export-internal.h>
+#include <linux/vermagic.h>
+#include <linux/compiler.h>
+
+BUILD_SALT;
+BUILD_LTO_INFO;
+
+MODULE_INFO(vermagic, VERMAGIC_STRING);
+MODULE_INFO(name, KBUILD_MODNAME);
+
+__visible struct module __this_module
+__section(".gnu.linkonce.this_module") = {
+	.name = KBUILD_MODNAME,
+	.init = init_module,
+#ifdef CONFIG_MODULE_UNLOAD
+	.exit = cleanup_module,
+#endif
+	.arch = MODULE_ARCH_INIT,
+};
+
+#ifdef CONFIG_RETPOLINE
+MODULE_INFO(retpoline, "Y");
+#endif
+
+
+static const struct modversion_info ____versions[]
+__used __section("__versions") = {
+	{ 0xbdfb6dbb, "__fentry__" },
+	{ 0x92997ed8, "_printk" },
+	{ 0x5b8239ca, "__x86_return_thunk" },
+	{ 0xc9d7e676, "module_layout" },
+};
+
+MODULE_INFO(depends, "");
+