xref: /xnu-12377.61.12/libkern/libclosure/libclosuredata.c (revision 4d495c6e23c53686cf65f45067f79024cf5dcee8)
1*4d495c6eSApple OSS Distributions /*
2*4d495c6eSApple OSS Distributions  * data.c
3*4d495c6eSApple OSS Distributions  * libclosure
4*4d495c6eSApple OSS Distributions  *
5*4d495c6eSApple OSS Distributions  * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
6*4d495c6eSApple OSS Distributions  *
7*4d495c6eSApple OSS Distributions  * @APPLE_LLVM_LICENSE_HEADER@
8*4d495c6eSApple OSS Distributions  *
9*4d495c6eSApple OSS Distributions  */
10*4d495c6eSApple OSS Distributions 
11*4d495c6eSApple OSS Distributions /********************
12*4d495c6eSApple OSS Distributions  *  NSBlock support
13*4d495c6eSApple OSS Distributions  *
14*4d495c6eSApple 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*4d495c6eSApple OSS Distributions  *
16*4d495c6eSApple 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*4d495c6eSApple OSS Distributions  **********************/
18*4d495c6eSApple OSS Distributions 
19*4d495c6eSApple OSS Distributions void * _NSConcreteStackBlock[32] = { 0 };
20*4d495c6eSApple OSS Distributions void * _NSConcreteMallocBlock[32] = { 0 };
21*4d495c6eSApple OSS Distributions void * _NSConcreteAutoBlock[32] = { 0 };
22*4d495c6eSApple OSS Distributions void * _NSConcreteFinalizingBlock[32] = { 0 };
23*4d495c6eSApple OSS Distributions void * _NSConcreteGlobalBlock[32] = { 0 };
24*4d495c6eSApple OSS Distributions void * _NSConcreteWeakBlockVariable[32] = { 0 };
25