xref: /xnu-10002.41.9/libkern/libclosure/libclosuredata.c (revision 699cd48037512bf4380799317ca44ca453c82f57)
1*699cd480SApple OSS Distributions /*
2*699cd480SApple OSS Distributions  * data.c
3*699cd480SApple OSS Distributions  * libclosure
4*699cd480SApple OSS Distributions  *
5*699cd480SApple OSS Distributions  * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
6*699cd480SApple OSS Distributions  *
7*699cd480SApple OSS Distributions  * @APPLE_LLVM_LICENSE_HEADER@
8*699cd480SApple OSS Distributions  *
9*699cd480SApple OSS Distributions  */
10*699cd480SApple OSS Distributions 
11*699cd480SApple OSS Distributions /********************
12*699cd480SApple OSS Distributions  *  NSBlock support
13*699cd480SApple OSS Distributions  *
14*699cd480SApple 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*699cd480SApple OSS Distributions  *
16*699cd480SApple 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*699cd480SApple OSS Distributions  **********************/
18*699cd480SApple OSS Distributions 
19*699cd480SApple OSS Distributions void * _NSConcreteStackBlock[32] = { 0 };
20*699cd480SApple OSS Distributions void * _NSConcreteMallocBlock[32] = { 0 };
21*699cd480SApple OSS Distributions void * _NSConcreteAutoBlock[32] = { 0 };
22*699cd480SApple OSS Distributions void * _NSConcreteFinalizingBlock[32] = { 0 };
23*699cd480SApple OSS Distributions void * _NSConcreteGlobalBlock[32] = { 0 };
24*699cd480SApple OSS Distributions void * _NSConcreteWeakBlockVariable[32] = { 0 };
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