/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000,2008-2012 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the
- * License may not be used to create, or enable the creation or
- * redistribution of, unlawful or unlicensed copies of an Apple operating
- * system, or to circumvent, violate, or enable the circumvention or
- * violation of, any terms of an Apple operating system software license
- * agreement.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
- Subtle combination of files and libraries make up the C++ runtime system for kernel modules. We are dependant on the KernelModule kmod.make and CreateKModInfo.perl scripts to be exactly instep with both this library module and the libkmod module as well.
-
- If you do any maintenance on any of the following files make sure great care is taken to keep them in Sync.
- KernelModule.bproj/kmod.make
- KernelModule.bproj/CreateKModInfo.perl
- KernelModule.bproj/kmodc++/pure.c
- KernelModule.bproj/kmodc++/cplus_start.c
- KernelModule.bproj/kmodc++/cplus_start.c
- KernelModule.bproj/kmodc/c_start.c
- KernelModule.bproj/kmodc/c_stop.c
-
- The trick is that the linkline links all of the developers modules. If any static constructors are used .constructors_used will be left as an undefined symbol. This symbol is exported by the cplus_start.c routine which automatically brings in the appropriate C++ _start routine. However the actual _start symbol is only required by the kmod_info structure that is created and initialized by the CreateKModInfo.perl script. If no C++ was used the _start will be an undefined symbol that is finally satisfied by the c_start module in the kmod library.
-
- The linkline must look like this.
- *.o -lkmodc++ kmod_info.o -lkmod
+ * Subtle combination of files and libraries make up the C++ runtime system for kernel modules. We are dependant on the KernelModule kmod.make and CreateKModInfo.perl scripts to be exactly instep with both this library module and the libkmod module as well.
+ *
+ * If you do any maintenance on any of the following files make sure great care is taken to keep them in Sync.
+ * KernelModule.bproj/kmod.make
+ * KernelModule.bproj/CreateKModInfo.perl
+ * KernelModule.bproj/kmodc++/pure.c
+ * KernelModule.bproj/kmodc++/cplus_start.c
+ * KernelModule.bproj/kmodc++/cplus_start.c
+ * KernelModule.bproj/kmodc/c_start.c
+ * KernelModule.bproj/kmodc/c_stop.c
+ *
+ * The trick is that the linkline links all of the developers modules. If any static constructors are used .constructors_used will be left as an undefined symbol. This symbol is exported by the cplus_start.c routine which automatically brings in the appropriate C++ _start routine. However the actual _start symbol is only required by the kmod_info structure that is created and initialized by the CreateKModInfo.perl script. If no C++ was used the _start will be an undefined symbol that is finally satisfied by the c_start module in the kmod library.
+ *
+ * The linkline must look like this.
+ *.o -lkmodc++ kmod_info.o -lkmod
*/
-#include <mach/mach_types.h>
-
-asm(".destructors_used = 0");
-asm(".private_extern .destructors_used");
-
-// Functions defined in libkern/c++/OSRuntime.cpp
-extern kern_return_t OSRuntimeFinalizeCPP(kmod_info_t *ki, void *data);
-
-// This global symbols will be defined by CreateInfo script's info.c file.
-extern kmod_stop_func_t *_antimain;
-
-__private_extern__ kern_return_t _stop(kmod_info_t *ki, void *data)
-{
- kern_return_t res = OSRuntimeFinalizeCPP(ki, data);
-
- if (!res && _antimain)
- res = (*_antimain)(ki, data);
-
- return res;
-}
projects / apple / xnu.git / blobdiff