xref: /xnu-10002.61.3/libkern/libclosure/libclosuredata.c (revision 0f4c859e951fba394238ab619495c4e1d54d0f34)
1*0f4c859eSApple OSS Distributions /*
2*0f4c859eSApple OSS Distributions  * data.c
3*0f4c859eSApple OSS Distributions  * libclosure
4*0f4c859eSApple OSS Distributions  *
5*0f4c859eSApple OSS Distributions  * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
6*0f4c859eSApple OSS Distributions  *
7*0f4c859eSApple OSS Distributions  * @APPLE_LLVM_LICENSE_HEADER@
8*0f4c859eSApple OSS Distributions  *
9*0f4c859eSApple OSS Distributions  */
10*0f4c859eSApple OSS Distributions 
11*0f4c859eSApple OSS Distributions /********************
12*0f4c859eSApple OSS Distributions  *  NSBlock support
13*0f4c859eSApple OSS Distributions  *
14*0f4c859eSApple OSS Distributions  *  We allocate space and export a symbol to be used as the Class for the on-stack and malloc'ed copies until ObjC arrives on the scene.  These data areas are set up by Foundation to link in as real classes post facto.
15*0f4c859eSApple OSS Distributions  *
16*0f4c859eSApple OSS Distributions  *  We keep these in a separate file so that we can include the runtime code in test subprojects but not include the data so that compiled code that sees the data in libSystem doesn't get confused by a second copy.  Somehow these don't get unified in a common block.
17*0f4c859eSApple OSS Distributions  **********************/
18*0f4c859eSApple OSS Distributions 
19*0f4c859eSApple OSS Distributions void * _NSConcreteStackBlock[32] = { 0 };
20*0f4c859eSApple OSS Distributions void * _NSConcreteMallocBlock[32] = { 0 };
21*0f4c859eSApple OSS Distributions void * _NSConcreteAutoBlock[32] = { 0 };
22*0f4c859eSApple OSS Distributions void * _NSConcreteFinalizingBlock[32] = { 0 };
23*0f4c859eSApple OSS Distributions void * _NSConcreteGlobalBlock[32] = { 0 };
24*0f4c859eSApple OSS Distributions void * _NSConcreteWeakBlockVariable[32] = { 0 };
25