dyld/src/dyldLibSystemGlue.c

   1 /* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
   2  *
   3  * Copyright (c) 2009 Apple Inc. All rights reserved.
   4  *
   5  * @APPLE_LICENSE_HEADER_START@
   6  *
   7  * This file contains Original Code and/or Modifications of Original Code
   8  * as defined in and that are subject to the Apple Public Source License
   9  * Version 2.0 (the 'License'). You may not use this file except in
  10  * compliance with the License. Please obtain a copy of the License at
  11  * http://www.opensource.apple.com/apsl/ and read it before using this
  12  * file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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  19  * Please see the License for the specific language governing rights and
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  23  */
  24
  25 #include <stdlib.h>
  26
  27 //
  28 // <rdar://problem/6536810> Alter libdyld.a to not need libsystem to link with dylib1.o
  29 // This is the temporary private interface between libSystem.B.dylib and dyld
  30 //
  31
  32 #if __i386__ || __x86_64__
  33 // The compiler driver will continue to add -ldylib1.o to ppc and arm links
  34 // so only i386 and x86_64 need this extra glue.
  35
  36 struct __DATA__dyld { long lazy; int (*lookup)(const char*, void**); };
  37
  38 static struct __DATA__dyld  myDyldSection __attribute__ ((section ("__DATA,__dyld"))) = { 0, NULL };
  39
  40
  41 __attribute__((weak, visibility("hidden"))) int _dyld_func_lookup(const char* dyld_func_name, void **address)
  42 {
  43         return (*myDyldSection.lookup)(dyld_func_name, address);
  44 }
  45
  46 #endif
  47
  48
  49