/* Initialization code run first thing by the ELF startup code. Linux version. Copyright (C) 1995, 1996 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include "init-first.h" extern void __libc_init (int, char **, char **); extern void __libc_global_ctors (void); /* The function is called from assembly stubs the compiler can't see. */ static void init (void *) __attribute__ ((unused)); static void init (void *data) { extern int __personality (int); int argc = *(long *)data; char **argv = (char **)data + 1; char **envp = &argv[argc + 1]; /* The `personality' system call takes one argument that chooses the "personality", i.e. the set of system calls and such. Zero is the native Linux value; we must make this call first thing to disable emulation of some other system that might have been enabled by default based on the executable format. */ __personality (0); /* Set the FPU control word to the proper default value. */ __setfpucw (__fpu_control); __environ = envp; __libc_init (argc, argv, envp); #ifdef PIC __libc_global_ctors (); #endif } #ifdef PIC SYSDEP_CALL_INIT(_init, init); void __libc_init_first (void) { } #else SYSDEP_CALL_INIT(__libc_init_first, init); #endif