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- /* Copyright (C) 1991, 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 General Public License as published by
- the Free Software Foundation; either version 2, 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with the GNU C Library; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include <ansidecl.h>
- #include <errno.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include <sysdep.h> /* In case it wants to define anything. */
-
- /* The first piece of initialized data. */
- int __data_start = 0;
-
- #ifdef DUMMIES
- #define ARG_DUMMIES DUMMIES,
- #define DECL_DUMMIES int DUMMIES;
- #else
- #define ARG_DUMMIES
- #define DECL_DUMMIES
- #endif
-
- VOLATILE int errno;
-
- #ifndef HAVE_GNU_LD
- #undef environ
- #define __environ environ
- #endif
-
- char **__environ;
-
- extern void EXFUN(__libc_init, (int argc, char **argv, char **envp));
- extern int EXFUN(main, (int argc, char **argv, char **envp));
-
-
- /* Not a prototype because it gets called strangely. */
- static void start1();
-
- #ifndef HAVE__start
-
- #if !defined (NO_UNDERSCORES) && defined (__GNUC__)
- /* Declare _start with an explicit assembly symbol name of `start'
- (note no leading underscore). This is the name vendor crt0.o's
- tend to use, and thus the name most linkers expect. */
- void _start (void) asm ("start");
- #endif
-
- /* N.B.: It is important that this be the first function.
- This file is the first thing in the text section. */
- void
- DEFUN_VOID(_start)
- {
- start1();
- }
-
- #if !defined (NO_UNDERSCORES) && defined (HAVE_GNU_LD) && !defined (__GNUC__)
- /* Make an alias called `start' (no leading underscore,
- so it can't conflict with C symbols) for `_start'. */
- asm(".stabs \"start\",11,0,0,0");
- asm(".stabs \"__start\",1,0,0,0");
- #endif
-
- #endif
-
- /* ARGSUSED */
- static void
- start1(ARG_DUMMIES argc, argp)
- DECL_DUMMIES
- int argc;
- char *argp;
- {
- char **argv = &argp;
-
- /* The environment starts just after ARGV. */
- __environ = &argv[argc + 1];
-
- /* If the first thing after ARGV is the arguments
- themselves, there is no environment. */
- if ((char *) __environ == *argv)
- /* The environment is empty. Make __environ
- point at ARGV[ARGC], which is NULL. */
- --__environ;
-
- /* Do C library initializations. */
- __libc_init (argc, argv, __environ);
-
- /* Call the user program. */
- exit(main(argc, argv, __environ));
- }
-