mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-18 11:00:07 +00:00
6d1d0720b1
2003-05-21 Ulrich Drepper <drepper@redhat.com> * csu/elf-init.c: Mark __preinit_array_start, __preinit_array_end, __init_array_start, __init_array_end, __fini_array_start, and __fini_array_end as hidden.
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/* Startup support for ELF initializers/finalizers in the main executable.
|
|
Copyright (C) 2002, 2003 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <stddef.h>
|
|
|
|
#ifdef HAVE_INITFINI_ARRAY
|
|
/* These magic symbols are provided by the linker. */
|
|
extern void (*__preinit_array_start []) (void) attribute_hidden;
|
|
extern void (*__preinit_array_end []) (void) attribute_hidden;
|
|
extern void (*__init_array_start []) (void) attribute_hidden;
|
|
extern void (*__init_array_end []) (void) attribute_hidden;
|
|
extern void (*__fini_array_start []) (void) attribute_hidden;
|
|
extern void (*__fini_array_end []) (void) attribute_hidden;
|
|
#endif
|
|
|
|
/* These function symbols are provided for the .init/.fini section entry
|
|
points automagically by the linker. */
|
|
extern void _init (void);
|
|
extern void _fini (void);
|
|
|
|
/* These functions are passed to __libc_start_main by the startup code.
|
|
These get statically linked into each program. For dynamically linked
|
|
programs, this module will come from libc_nonshared.a and differs from
|
|
the libc.a module in that it doesn't call the preinit array. */
|
|
|
|
void
|
|
__libc_csu_init (void)
|
|
{
|
|
#ifdef HAVE_INITFINI_ARRAY
|
|
/* For dynamically linked executables the preinit array is executed by
|
|
the dynamic linker (before initializing any shared object. */
|
|
|
|
# ifndef LIBC_NONSHARED
|
|
/* For static executables, preinit happens rights before init. */
|
|
{
|
|
const size_t size = __preinit_array_end - __preinit_array_start;
|
|
size_t i;
|
|
for (i = 0; i < size; i++)
|
|
(*__preinit_array_start [i]) ();
|
|
}
|
|
# endif
|
|
#endif
|
|
|
|
_init ();
|
|
|
|
#ifdef HAVE_INITFINI_ARRAY
|
|
{
|
|
const size_t size = __init_array_end - __init_array_start;
|
|
size_t i;
|
|
for (i = 0; i < size; i++)
|
|
(*__init_array_start [i]) ();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void
|
|
__libc_csu_fini (void)
|
|
{
|
|
#ifdef HAVE_INITFINI_ARRAY
|
|
size_t i = __fini_array_end - __fini_array_start;
|
|
while (i-- > 0)
|
|
(*__fini_array_start [i]) ();
|
|
#endif
|
|
|
|
_fini ();
|
|
}
|