sys/__libc_init.c

   1 /*
   2  * Copyright (c) 2005-2007 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * __libc_init() is called from libSystem_initializer()
  25  */
  26
  27 #include <limits.h>
  28 #include <stdint.h>
  29 #include <string.h>
  30 #include <machine/cpu_capabilities.h>
  31 #include <TargetConditionals.h>
  32
  33 #if TARGET_IPHONE_SIMULATOR
  34 extern void __chk_init(void);
  35 extern void __xlocale_init(void);
  36
  37 void
  38 _libc_sim_init(void) {
  39         __chk_init();
  40         __xlocale_init();
  41 }
  42
  43 #else /* TARGET_IPHONE_SIMULATOR */
  44 struct ProgramVars; /* forward reference */
  45
  46 extern void _program_vars_init(const struct ProgramVars *vars);
  47 extern void _libc_fork_init(void (*prepare)(void), void (*parent)(void), void (*child)(void));
  48 extern void _init_clock_port(void);
  49 extern void __chk_init(void);
  50 extern void __xlocale_init(void);
  51 extern void __guard_setup(const char *apple[]);
  52
  53 void
  54 __libc_init(const struct ProgramVars *vars, void (*atfork_prepare)(void), void (*atfork_parent)(void), void (*atfork_child)(void), const char *apple[])
  55 {
  56         _program_vars_init(vars);
  57         _libc_fork_init(atfork_prepare, atfork_parent, atfork_child);
  58         _init_clock_port();
  59         __chk_init();
  60         __xlocale_init();
  61         __guard_setup(apple);
  62 }
  63 #endif /* TARGET_IPHONE_SIMULATOR */