Linux kernel mirror (for testing)
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linux
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/init/version.c
4 *
5 * Copyright (C) 1992 Theodore Ts'o
6 *
7 * May be freely distributed as part of Linux.
8 */
9
10#include <generated/compile.h>
11#include <linux/build-salt.h>
12#include <linux/elfnote-lto.h>
13#include <linux/export.h>
14#include <linux/init.h>
15#include <linux/printk.h>
16#include <linux/uts.h>
17#include <linux/utsname.h>
18#include <generated/utsrelease.h>
19#include <linux/proc_ns.h>
20
21static int __init early_hostname(char *arg)
22{
23 size_t bufsize = sizeof(init_uts_ns.name.nodename);
24 size_t maxlen = bufsize - 1;
25 size_t arglen;
26
27 arglen = strlcpy(init_uts_ns.name.nodename, arg, bufsize);
28 if (arglen > maxlen) {
29 pr_warn("hostname parameter exceeds %zd characters and will be truncated",
30 maxlen);
31 }
32 return 0;
33}
34early_param("hostname", early_hostname);
35
36const char linux_proc_banner[] =
37 "%s version %s"
38 " (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ")"
39 " (" LINUX_COMPILER ") %s\n";
40
41BUILD_SALT;
42BUILD_LTO_INFO;
43
44/*
45 * init_uts_ns and linux_banner contain the build version and timestamp,
46 * which are really fixed at the very last step of build process.
47 * They are compiled with __weak first, and without __weak later.
48 */
49
50struct uts_namespace init_uts_ns __weak;
51const char linux_banner[] __weak;
52
53#include "version-timestamp.c"
54
55EXPORT_SYMBOL_GPL(init_uts_ns);