/*
- * Copyright (c) 2000,2008-2009 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000,2008-2012 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_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
* 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.
- *
+ *
* 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,
* 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_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
- */
-
-/* The following preprocessor test must match exactly with the architectures
- * that define the CONFIG_STATIC_CPPINIT config option.
+ * 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
*/
-#if __i386__
-
-#include <mach/mach_types.h>
-#include <libkern/OSKextLib.h>
-
-asm(".constructors_used = 0");
-asm(".private_extern .constructors_used");
-
-// This global symbols will be defined by CreateInfo script's info.c file.
-extern kmod_start_func_t *_realmain;
-extern kmod_info_t KMOD_INFO_NAME;
-
-// Functions defined in libkern/c++/OSRuntime.cpp
-extern kern_return_t OSRuntimeInitializeCPP(kmod_info_t *ki, void *data);
-extern kern_return_t OSRuntimeFinalizeCPP(kmod_info_t *ki, void *data);
-
-/*********************************************************************
-*********************************************************************/
-__private_extern__ kern_return_t _start(kmod_info_t *ki, void *data)
-{
- kern_return_t result = OSRuntimeInitializeCPP(ki, data);
-
- if ((result == KERN_SUCCESS) && _realmain) {
- result = (*_realmain)(ki, data);
-
- /* If _realmain failed, tear down C++.
- */
- if (result != KERN_SUCCESS) {
- (void)OSRuntimeFinalizeCPP(ki, data);
- }
- }
-
- return result;
-}
-
-/*********************************************************************
-*********************************************************************/
-__private_extern__ const char * OSKextGetCurrentIdentifier(void)
-{
- return KMOD_INFO_NAME.name;
-}
-
-/*********************************************************************
-*********************************************************************/
-__private_extern__ const char * OSKextGetCurrentVersionString(void)
-{
- return KMOD_INFO_NAME.version;
-}
-
-/*********************************************************************
-*********************************************************************/
-__private_extern__ OSKextLoadTag OSKextGetCurrentLoadTag(void)
-{
- return (OSKextLoadTag)KMOD_INFO_NAME.id;
-}
-#endif
projects / apple / xnu.git / blobdiff