glibc/elf/libc-early-init.h
Florian Weimer 89baed0b93 Revert "Detect ld.so and libc.so version inconsistency during startup"
This reverts commit 6f85dbf102.

Once this change hits the release branches, it will require relinking
of all statically linked applications before static dlopen works
again, for the majority of updates on release branches: The NEWS file
is regularly updated with bug references, so the __libc_early_init
suffix changes, and static dlopen cannot find the function anymore.

While this ABI check is still technically correct (we do require
rebuilding & relinking after glibc updates to keep static dlopen
working), it is too drastic for stable release branches.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2022-08-25 18:46:43 +02:00

39 lines
1.6 KiB
C

/* Early initialization of libc.so.
Copyright (C) 2020-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _LIBC_EARLY_INIT_H
#define _LIBC_EARLY_INIT_H
struct link_map;
/* If LIBC_MAP is not NULL, look up the __libc_early_init symbol in it
and call this function, with INITIAL as the argument. */
void _dl_call_libc_early_init (struct link_map *libc_map, _Bool initial)
attribute_hidden;
/* In the shared case, this function is defined in libc.so and invoked
from ld.so (or on the fist static dlopen) after complete relocation
of a new loaded libc.so, but before user-defined ELF constructors
run. In the static case, this function is called directly from the
startup code. If INITIAL is true, the libc being initialized is
the libc for the main program. INITIAL is false for libcs loaded
for audit modules, dlmopen, and static dlopen. */
void __libc_early_init (_Bool initial);
#endif /* _LIBC_EARLY_INIT_H */