xref: /xnu-8792.81.2/libkern/libclosure/libclosuredata.c (revision 19c3b8c28c31cb8130e034cfb5df6bf9ba342d90)
1*19c3b8c2SApple OSS Distributions /*
2*19c3b8c2SApple OSS Distributions  * data.c
3*19c3b8c2SApple OSS Distributions  * libclosure
4*19c3b8c2SApple OSS Distributions  *
5*19c3b8c2SApple OSS Distributions  * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
6*19c3b8c2SApple OSS Distributions  *
7*19c3b8c2SApple OSS Distributions  * @APPLE_LLVM_LICENSE_HEADER@
8*19c3b8c2SApple OSS Distributions  *
9*19c3b8c2SApple OSS Distributions  */
10*19c3b8c2SApple OSS Distributions 
11*19c3b8c2SApple OSS Distributions /********************
12*19c3b8c2SApple OSS Distributions  *  NSBlock support
13*19c3b8c2SApple OSS Distributions  *
14*19c3b8c2SApple 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*19c3b8c2SApple OSS Distributions  *
16*19c3b8c2SApple 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*19c3b8c2SApple OSS Distributions  **********************/
18*19c3b8c2SApple OSS Distributions 
19*19c3b8c2SApple OSS Distributions void * _NSConcreteStackBlock[32] = { 0 };
20*19c3b8c2SApple OSS Distributions void * _NSConcreteMallocBlock[32] = { 0 };
21*19c3b8c2SApple OSS Distributions void * _NSConcreteAutoBlock[32] = { 0 };
22*19c3b8c2SApple OSS Distributions void * _NSConcreteFinalizingBlock[32] = { 0 };
23*19c3b8c2SApple OSS Distributions void * _NSConcreteGlobalBlock[32] = { 0 };
24*19c3b8c2SApple OSS Distributions void * _NSConcreteWeakBlockVariable[32] = { 0 };
25