xref: /xnu-8020.121.3/libkern/libclosure/libclosuredata.c (revision fdd8201d7b966f0c3ea610489d29bd841d358941)
1*fdd8201dSApple OSS Distributions /*
2*fdd8201dSApple OSS Distributions  * data.c
3*fdd8201dSApple OSS Distributions  * libclosure
4*fdd8201dSApple OSS Distributions  *
5*fdd8201dSApple OSS Distributions  * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
6*fdd8201dSApple OSS Distributions  *
7*fdd8201dSApple OSS Distributions  * @APPLE_LLVM_LICENSE_HEADER@
8*fdd8201dSApple OSS Distributions  *
9*fdd8201dSApple OSS Distributions  */
10*fdd8201dSApple OSS Distributions 
11*fdd8201dSApple OSS Distributions /********************
12*fdd8201dSApple OSS Distributions  *  NSBlock support
13*fdd8201dSApple OSS Distributions  *
14*fdd8201dSApple 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*fdd8201dSApple OSS Distributions  *
16*fdd8201dSApple 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*fdd8201dSApple OSS Distributions  **********************/
18*fdd8201dSApple OSS Distributions 
19*fdd8201dSApple OSS Distributions void * _NSConcreteStackBlock[32] = { 0 };
20*fdd8201dSApple OSS Distributions void * _NSConcreteMallocBlock[32] = { 0 };
21*fdd8201dSApple OSS Distributions void * _NSConcreteAutoBlock[32] = { 0 };
22*fdd8201dSApple OSS Distributions void * _NSConcreteFinalizingBlock[32] = { 0 };
23*fdd8201dSApple OSS Distributions void * _NSConcreteGlobalBlock[32] = { 0 };
24*fdd8201dSApple OSS Distributions void * _NSConcreteWeakBlockVariable[32] = { 0 };
25