/* Copyright (C) 1991, 93, 95, 96, 97, 98 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 <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 HAVE_WEAK_SYMBOLS weak_alias (__data_start, data_start) #endif #ifdef DUMMIES #define ARG_DUMMIES DUMMIES, #define DECL_DUMMIES int DUMMIES; #else #define ARG_DUMMIES #define DECL_DUMMIES #endif #ifndef errno volatile int __errno; strong_alias (__errno, errno) #endif extern void __libc_init __P ((int argc, char **argv, char **envp)); extern int main __P ((int argc, char **argv, char **envp)); /* Not a prototype because it gets called strangely. */ static void start1(); #ifndef HAVE__start /* N.B.: It is important that this be the first function. This file is the first thing in the text section. */ void _start () { start1 (); } #ifndef NO_UNDERSCORES /* Make an alias called `start' (no leading underscore, so it can't conflict with C symbols) for `_start'. This is the name vendor crt0.o's tend to use, and thus the name most linkers expect. */ asm (".set start, __start"); #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)); }