xref: /xnu-11417.140.69/libkern/libclosure/libclosuredata.c (revision 43a90889846e00bfb5cf1d255cdc0a701a1e05a4)
1*43a90889SApple OSS Distributions /*
2*43a90889SApple OSS Distributions  * data.c
3*43a90889SApple OSS Distributions  * libclosure
4*43a90889SApple OSS Distributions  *
5*43a90889SApple OSS Distributions  * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
6*43a90889SApple OSS Distributions  *
7*43a90889SApple OSS Distributions  * @APPLE_LLVM_LICENSE_HEADER@
8*43a90889SApple OSS Distributions  *
9*43a90889SApple OSS Distributions  */
10*43a90889SApple OSS Distributions 
11*43a90889SApple OSS Distributions /********************
12*43a90889SApple OSS Distributions  *  NSBlock support
13*43a90889SApple OSS Distributions  *
14*43a90889SApple 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*43a90889SApple OSS Distributions  *
16*43a90889SApple 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*43a90889SApple OSS Distributions  **********************/
18*43a90889SApple OSS Distributions 
19*43a90889SApple OSS Distributions void * _NSConcreteStackBlock[32] = { 0 };
20*43a90889SApple OSS Distributions void * _NSConcreteMallocBlock[32] = { 0 };
21*43a90889SApple OSS Distributions void * _NSConcreteAutoBlock[32] = { 0 };
22*43a90889SApple OSS Distributions void * _NSConcreteFinalizingBlock[32] = { 0 };
23*43a90889SApple OSS Distributions void * _NSConcreteGlobalBlock[32] = { 0 };
24*43a90889SApple OSS Distributions void * _NSConcreteWeakBlockVariable[32] = { 0 };
25