/* 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 #include #include 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)); }