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/* Copyright (C) 1998 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <link.h>
#include <stdlib.h>
#include <unistd.h>
extern void __libc_init_first (int argc, char **argv, char **envp);
extern int _dl_starting_up;
weak_extern (_dl_starting_up)
extern int __libc_multiple_libcs;
int
__libc_start_main (int (*main) (int, char **, char **), int argc,
char **argv, void (*init) (void), void (*fini) (void),
void (*rtld_fini) (void))
{
#ifndef PIC
/* The next variable is only here to work around a bug in gcc <= 2.7.2.2.
If the address would be taken inside the expression the optimizer
would try to be too smart and throws it away. Grrr. */
int *dummy_addr = &_dl_starting_up;
__libc_multiple_libcs = dummy_addr && !_dl_starting_up;
#endif
/* Register the destructor of the dynamic linker if there is any. */
if (rtld_fini != NULL)
atexit (rtld_fini);
/* Set the global _environ variable correctly. */
__environ = &argv[argc + 1];
/* Call the initializer of the libc. */
#ifdef PIC
if (_dl_debug_impcalls)
_dl_debug_message ("\tinitialize libc\n\n", NULL);
#endif
__libc_init_first (argc, argv, __environ);
/* Call the initializer of the program. */
#ifdef PIC
if (_dl_debug_impcalls)
_dl_debug_message ("\tinitialize program: ", argv[0], "\n\n", NULL);
#endif
(*init) ();
/* Register the destructor of the program. */
atexit (fini);
#ifdef PIC
if (_dl_debug_impcalls)
_dl_debug_message ("\ttransferring control: ", argv[0], "\n\n", NULL);
#endif
exit ((*main) (argc, argv, __environ));
}
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