xref: /xnu-8796.101.5/libkern/libclosure/libclosuredata.c (revision aca3beaa3dfbd42498b42c5e5ce20a938e6554e5)
1*aca3beaaSApple OSS Distributions /*
2*aca3beaaSApple OSS Distributions  * data.c
3*aca3beaaSApple OSS Distributions  * libclosure
4*aca3beaaSApple OSS Distributions  *
5*aca3beaaSApple OSS Distributions  * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
6*aca3beaaSApple OSS Distributions  *
7*aca3beaaSApple OSS Distributions  * @APPLE_LLVM_LICENSE_HEADER@
8*aca3beaaSApple OSS Distributions  *
9*aca3beaaSApple OSS Distributions  */
10*aca3beaaSApple OSS Distributions 
11*aca3beaaSApple OSS Distributions /********************
12*aca3beaaSApple OSS Distributions  *  NSBlock support
13*aca3beaaSApple OSS Distributions  *
14*aca3beaaSApple 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*aca3beaaSApple OSS Distributions  *
16*aca3beaaSApple 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*aca3beaaSApple OSS Distributions  **********************/
18*aca3beaaSApple OSS Distributions 
19*aca3beaaSApple OSS Distributions void * _NSConcreteStackBlock[32] = { 0 };
20*aca3beaaSApple OSS Distributions void * _NSConcreteMallocBlock[32] = { 0 };
21*aca3beaaSApple OSS Distributions void * _NSConcreteAutoBlock[32] = { 0 };
22*aca3beaaSApple OSS Distributions void * _NSConcreteFinalizingBlock[32] = { 0 };
23*aca3beaaSApple OSS Distributions void * _NSConcreteGlobalBlock[32] = { 0 };
24*aca3beaaSApple OSS Distributions void * _NSConcreteWeakBlockVariable[32] = { 0 };
25