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glibc/csu/init-first.c
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/* Initialization code run first thing by the ELF startup code. Stub version. | |
Copyright (C) 1995, 1997, 1998, 2001, 2002 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. | |
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 <unistd.h> | |
#include <sys/types.h> | |
/* Set nonzero if we have to be prepared for more then one libc being | |
used in the process. Safe assumption if initializer never runs. */ | |
int __libc_multiple_libcs attribute_hidden = 1; | |
extern void __libc_init (int, char **, char **); | |
#ifdef USE_NONOPTION_FLAGS | |
extern void __getopt_clean_environment (char **); | |
#endif | |
#ifdef SHARED | |
void | |
__libc_init_first (void) | |
{ | |
} | |
#endif | |
#ifdef SHARED | |
/* NOTE! The linker notices the magical name `_init' and sets the DT_INIT | |
pointer in the dynamic section based solely on that. It is convention | |
for this function to be in the `.init' section, but the symbol name is | |
the only thing that really matters!! */ | |
void _init | |
#else | |
void __libc_init_first | |
#endif | |
(int argc, char *arg0, ...) | |
{ | |
char **argv = &arg0, **envp = &argv[argc + 1]; | |
__environ = envp; | |
__libc_init (argc, argv, envp); | |
#ifdef USE_NONOPTION_FLAGS | |
/* This is a hack to make the special getopt in GNU libc working. */ | |
__getopt_clean_environment (envp); | |
#endif | |
} |