elf/libc-early-init.h

   1 /* Early initialization of libc.so.
   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 #ifndef _LIBC_EARLY_INIT_H
  20 #define _LIBC_EARLY_INIT_H
  21
  22 struct link_map;
  23
  24 /* If LIBC_MAP is not NULL, look up the __libc_early_init symbol in it
  25    and call this function.  */
  26 void _dl_call_libc_early_init (struct link_map *libc_map) attribute_hidden;
  27
  28 /* In the shared case, this function is defined in libc.so and invoked
  29    from ld.so (or on the fist static dlopen) after complete relocation
  30    of a new loaded libc.so, but before user-defined ELF constructors
  31    run.  In the static case, this function is called directly from the
  32    startup code.  */
  33 void __libc_early_init (void);
  34
  35 #endif /* _LIBC_EARLY_INIT_H */