xref: /xnu-11215.61.5/libkern/libclosure/libclosuredata.c (revision 4f1223e81cd707a65cc109d0b8ad6653699da3c4)
1*4f1223e8SApple OSS Distributions /*
2*4f1223e8SApple OSS Distributions  * data.c
3*4f1223e8SApple OSS Distributions  * libclosure
4*4f1223e8SApple OSS Distributions  *
5*4f1223e8SApple OSS Distributions  * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
6*4f1223e8SApple OSS Distributions  *
7*4f1223e8SApple OSS Distributions  * @APPLE_LLVM_LICENSE_HEADER@
8*4f1223e8SApple OSS Distributions  *
9*4f1223e8SApple OSS Distributions  */
10*4f1223e8SApple OSS Distributions 
11*4f1223e8SApple OSS Distributions /********************
12*4f1223e8SApple OSS Distributions  *  NSBlock support
13*4f1223e8SApple OSS Distributions  *
14*4f1223e8SApple 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*4f1223e8SApple OSS Distributions  *
16*4f1223e8SApple 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*4f1223e8SApple OSS Distributions  **********************/
18*4f1223e8SApple OSS Distributions 
19*4f1223e8SApple OSS Distributions void * _NSConcreteStackBlock[32] = { 0 };
20*4f1223e8SApple OSS Distributions void * _NSConcreteMallocBlock[32] = { 0 };
21*4f1223e8SApple OSS Distributions void * _NSConcreteAutoBlock[32] = { 0 };
22*4f1223e8SApple OSS Distributions void * _NSConcreteFinalizingBlock[32] = { 0 };
23*4f1223e8SApple OSS Distributions void * _NSConcreteGlobalBlock[32] = { 0 };
24*4f1223e8SApple OSS Distributions void * _NSConcreteWeakBlockVariable[32] = { 0 };
25