Line data    Source code

       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           0 : static int __init early_hostname(char *arg)
      21             : {
      22           0 :         size_t bufsize = sizeof(init_uts_ns.name.nodename);
      23           0 :         size_t maxlen  = bufsize - 1;
      24             :         size_t arglen;
      25             : 
      26           0 :         arglen = strlcpy(init_uts_ns.name.nodename, arg, bufsize);
      27           0 :         if (arglen > maxlen) {
      28           0 :                 pr_warn("hostname parameter exceeds %zd characters and will be truncated",
      29             :                         maxlen);
      30             :         }
      31           0 :         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);