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 <linux/proc_ns.h>
19
20 static int __init early_hostname(char *arg)
21 {
22 size_t bufsize = sizeof(init_uts_ns.name.nodename);
23 size_t maxlen = bufsize - 1;
24 ssize_t arglen;
25
26 arglen = strscpy(init_uts_ns.name.nodename, arg, bufsize);
27 if (arglen < 0) {
28 pr_warn("hostname parameter exceeds %zd characters and will be truncated",
29 maxlen);
30 }
31 return 0;
32 }
33 early_param("hostname", early_hostname);
34
35 const char linux_proc_banner[] =
36 "%s version %s"
37 " (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ")"
38 " (" LINUX_COMPILER ") %s\n";
39
40 BUILD_SALT;
41 BUILD_LTO_INFO;
42
43 /*
44 * init_uts_ns and linux_banner contain the build version and timestamp,
45 * which are really fixed at the very last step of build process.
46 * They are compiled with __weak first, and without __weak later.
47 */
48
49 struct uts_namespace init_uts_ns __weak;
50 const char linux_banner[] __weak;
51
52 #include "version-timestamp.c"
53
54 EXPORT_SYMBOL_GPL(init_uts_ns);
55
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TOMOYO® is a registered trademark of NTT DATA CORPORATION.