| /* Copyright (C) 1991, 93, 1995-1998, 2000 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 Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| In addition to the permissions in the GNU Lesser General Public |
| License, the Free Software Foundation gives you unlimited |
| permission to link the compiled version of this file with other |
| programs, and to distribute those programs without any restriction |
| coming from the use of this file. (The GNU Lesser General Public |
| License restrictions do apply in other respects; for example, they |
| cover modification of the file, and distribution when not linked |
| into another program.) |
| |
| Note that people who make modified versions of this file are not |
| obligated to grant this special exception for their modified |
| versions; it is their choice whether to do so. The GNU Lesser |
| General Public License gives permission to release a modified |
| version without this exception; this exception also makes it |
| possible to release a modified version which carries forward this |
| exception. |
| |
| 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; 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 |
| |
| extern void __libc_init (int argc, char **argv, char **envp); |
| extern int main (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)); |
| } |