xref: /xnu-10063.141.1/libkern/libclosure/libclosuredata.c (revision d8b80295118ef25ac3a784134bcf95cd8e88109f)
1*d8b80295SApple OSS Distributions /*
2*d8b80295SApple OSS Distributions  * data.c
3*d8b80295SApple OSS Distributions  * libclosure
4*d8b80295SApple OSS Distributions  *
5*d8b80295SApple OSS Distributions  * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
6*d8b80295SApple OSS Distributions  *
7*d8b80295SApple OSS Distributions  * @APPLE_LLVM_LICENSE_HEADER@
8*d8b80295SApple OSS Distributions  *
9*d8b80295SApple OSS Distributions  */
10*d8b80295SApple OSS Distributions 
11*d8b80295SApple OSS Distributions /********************
12*d8b80295SApple OSS Distributions  *  NSBlock support
13*d8b80295SApple OSS Distributions  *
14*d8b80295SApple 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*d8b80295SApple OSS Distributions  *
16*d8b80295SApple 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*d8b80295SApple OSS Distributions  **********************/
18*d8b80295SApple OSS Distributions 
19*d8b80295SApple OSS Distributions void * _NSConcreteStackBlock[32] = { 0 };
20*d8b80295SApple OSS Distributions void * _NSConcreteMallocBlock[32] = { 0 };
21*d8b80295SApple OSS Distributions void * _NSConcreteAutoBlock[32] = { 0 };
22*d8b80295SApple OSS Distributions void * _NSConcreteFinalizingBlock[32] = { 0 };
23*d8b80295SApple OSS Distributions void * _NSConcreteGlobalBlock[32] = { 0 };
24*d8b80295SApple OSS Distributions void * _NSConcreteWeakBlockVariable[32] = { 0 };
25