elf/libc_early_init.c

   1 /* Early initialization of libc.so, libc.so side.
   2    Copyright (C) 2020 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <ctype.h>
  20 #include <libc-early-init.h>
  21 #include <sys/single_threaded.h>
  22
  23 void
  24 __libc_early_init (_Bool initial)
  25 {
  26   /* Initialize ctype data.  */
  27   __ctype_init ();
  28
  29   /* Only the outer namespace is marked as single-threaded.  */
  30   __libc_single_threaded = initial;
  31 }