xref: /xnu-11215.1.10/libkern/libclosure/libclosuredata.c (revision 8d741a5de7ff4191bf97d57b9f54c2f6d4a15585)
1*8d741a5dSApple OSS Distributions /*
2*8d741a5dSApple OSS Distributions  * data.c
3*8d741a5dSApple OSS Distributions  * libclosure
4*8d741a5dSApple OSS Distributions  *
5*8d741a5dSApple OSS Distributions  * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
6*8d741a5dSApple OSS Distributions  *
7*8d741a5dSApple OSS Distributions  * @APPLE_LLVM_LICENSE_HEADER@
8*8d741a5dSApple OSS Distributions  *
9*8d741a5dSApple OSS Distributions  */
10*8d741a5dSApple OSS Distributions 
11*8d741a5dSApple OSS Distributions /********************
12*8d741a5dSApple OSS Distributions  *  NSBlock support
13*8d741a5dSApple OSS Distributions  *
14*8d741a5dSApple 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*8d741a5dSApple OSS Distributions  *
16*8d741a5dSApple 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*8d741a5dSApple OSS Distributions  **********************/
18*8d741a5dSApple OSS Distributions 
19*8d741a5dSApple OSS Distributions void * _NSConcreteStackBlock[32] = { 0 };
20*8d741a5dSApple OSS Distributions void * _NSConcreteMallocBlock[32] = { 0 };
21*8d741a5dSApple OSS Distributions void * _NSConcreteAutoBlock[32] = { 0 };
22*8d741a5dSApple OSS Distributions void * _NSConcreteFinalizingBlock[32] = { 0 };
23*8d741a5dSApple OSS Distributions void * _NSConcreteGlobalBlock[32] = { 0 };
24*8d741a5dSApple OSS Distributions void * _NSConcreteWeakBlockVariable[32] = { 0 };
25