csu/version.c

   1 /* Copyright (C) 1992-2020 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include "version.h"
  19 #include <tls.h>
  20 #include <libc-abis.h>
  21 #include <gnu/libc-version.h>
  22
  23 static const char __libc_release[] = RELEASE;
  24 static const char __libc_version[] = VERSION;
  25
  26 static const char banner[] =
  27 "GNU C Library "PKGVERSION RELEASE" release version "VERSION".\n\
  28 Copyright (C) 2020 Free Software Foundation, Inc.\n\
  29 This is free software; see the source for copying conditions.\n\
  30 There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
  31 PARTICULAR PURPOSE.\n\
  32 Compiled by GNU CC version "__VERSION__".\n"
  33 #ifdef LIBC_ABIS_STRING
  34 LIBC_ABIS_STRING
  35 #endif
  36 "For bug reporting instructions, please see:\n\
  37 "REPORT_BUGS_TO".\n";
  38
  39 #include <unistd.h>
  40
  41 extern void __libc_print_version (void) attribute_hidden;
  42 void
  43 __libc_print_version (void)
  44 {
  45   __write (STDOUT_FILENO, banner, sizeof banner - 1);
  46 }
  47
  48 extern const char *__gnu_get_libc_release (void);
  49 const char *
  50 __gnu_get_libc_release (void)
  51 {
  52   return __libc_release;
  53 }
  54 weak_alias (__gnu_get_libc_release, gnu_get_libc_release)
  55
  56 extern const char *__gnu_get_libc_version (void);
  57 const char *
  58 __gnu_get_libc_version (void)
  59 {
  60   return __libc_version;
  61 }
  62 weak_alias (__gnu_get_libc_version, gnu_get_libc_version)
  63
  64 /* This function is the entry point for the shared object.
  65    Running the library as a program will get here.  */
  66
  67 extern void __libc_main (void) __attribute__ ((noreturn));
  68 void
  69 __libc_main (void)
  70 {
  71   __libc_print_version ();
  72   _exit (0);
  73 }