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glibc/sysdeps/unix/sysv/aix/init-first.c
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/* Initialization code run first thing by the XCOFF startup code. AIX version. | |
Copyright (C) 2001 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 <stdio.h> | |
#include <stdlib.h> | |
#include <fcntl.h> | |
#include <unistd.h> | |
#include <sysdep.h> | |
#include <fpu_control.h> | |
#include <sys/param.h> | |
#include <sys/types.h> | |
#include <libc-internal.h> | |
#ifndef SHARED | |
# include <ldsodefs.h> | |
# include "dl-osinfo.h" | |
#endif | |
extern void __libc_init (int, char **, char **); | |
/* The function is called from assembly stubs the compiler can't see. */ | |
static void init (int, char **, char **) __attribute__ ((unused)); | |
extern int _dl_starting_up; | |
weak_extern (_dl_starting_up) | |
extern fpu_control_t _dl_fpu_control; | |
extern int _dl_fpu_control_set; | |
/* 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 = 1; | |
/* Remember the command line argument and enviroment contents for | |
later calls of initializers for dynamic libraries. */ | |
int __libc_argc; | |
char **__libc_argv; | |
static void | |
init (int argc, char **argv, char **envp) | |
{ | |
extern void __getopt_clean_environment (char **); | |
/* The next variable is only here to work around a bug in gcc <= 2.7.2.2. | |
If the address would be taken inside the expression the optimizer | |
would try to be too smart and throws it away. Grrr. */ | |
/* XXX disable dl for now | |
int *dummy_addr = &_dl_starting_up; | |
__libc_multiple_libcs = dummy_addr && !_dl_starting_up; */ | |
/* Save the command-line arguments. */ | |
__libc_argc = argc; | |
__libc_argv = argv; | |
__environ = envp; | |
#ifndef SHARED | |
__libc_init_secure (); | |
#endif | |
__libc_init (argc, argv, envp); | |
/* This is a hack to make the special getopt in GNU libc working. */ | |
__getopt_clean_environment (envp); | |
#ifdef SHARED | |
__libc_global_ctors (); | |
#endif | |
} | |
#ifdef SHARED | |
strong_alias (init, _init); | |
extern void __libc_init_first (void); | |
void | |
__libc_init_first (void) | |
{ | |
} | |
#else | |
extern void __libc_init_first (int argc, char **argv, char **envp); | |
void | |
__libc_init_first (int argc, char **argv, char **envp) | |
{ | |
init (argc, argv, envp); | |
} | |
#endif |