X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/43866e378188c25dd1e2208016ab3cbeb086ae6c..refs/heads/master:/libkern/kmod/cplus_start.c?ds=inline

diff --git a/libkern/kmod/cplus_start.c b/libkern/kmod/cplus_start.c
index 555bde420..9f23e486c 100644
--- a/libkern/kmod/cplus_start.c
+++ b/libkern/kmod/cplus_start.c
@@ -1,17 +1,20 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000,2008-2012 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
  * 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
+ * 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.
+ *
+ * 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,
@@ -19,43 +22,23 @@
  * 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_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(".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;
-
-// Functions defined in libkern/c++/OSRuntime.cpp
-extern kern_return_t OSRuntimeInitializeCPP(kmod_info_t *ki, void *data);
-
-__private_extern__ kern_return_t _start(kmod_info_t *ki, void *data)
-{
-    kern_return_t res = OSRuntimeInitializeCPP(ki, data);
-
-    if (!res && _realmain)
-        res = (*_realmain)(ki, data);
-
-    return res;
-}