home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (C) 1992, 1993 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., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include <stddef.h>
- #include <stdlib.h>
- #include <errno.h>
- #include <unistd.h>
- #include <sysdep.h>
-
- #ifndef __GNUC__
- #error This file uses GNU C extensions; you must compile with GCC.
- #endif
-
- /* The first piece of initialized data. */
- int __data_start = 0;
-
- volatile int errno;
-
- #ifndef HAVE_GNU_LD
- #define __environ environ
- #endif
- char **__environ;
-
- extern void __mach_init (void);
- extern void __libc_init (int argc, char **argv, char **envp);
- extern int main (int argc, char **argv, char **envp);
-
- /* These are uninitialized common definitions so they will be zero
- by default. If the user links in C threads, that will provide initialized
- definitions that override these. */
- void *(*_cthread_init_routine) (void); /* Returns new SP to use. */
- void (*_cthread_exit_routine) (int status);
-
-
- /* These are for communication from _start to start1,
- where we cannot use the stack for anything. */
- static int start_argc;
- static char **start_argv;
-
- /* _start calls this on the new stack. */
- static volatile void
- start1 (void)
- {
- __libc_init (start_argc, start_argv, __environ);
-
- (_cthread_exit_routine != NULL ? *_cthread_exit_routine : exit)
- (main (start_argc, start_argv, __environ));
-
- /* Should never get here. */
- LOSE;
- }
-
-
- void
- _start (void)
- {
- SNARF_ARGS (start_argc, start_argv, __environ);
-
- __mach_init ();
-
- if (_cthread_init_routine != NULL)
- CALL_WITH_SP (start1, (*_cthread_init_routine) ());
- else
- start1 ();
-
- /* Should never get here. */
- LOSE;
- }
-