xnu-1699.24.23.tar.gz

[apple/xnu.git] / iokit / Kernel / IOStartIOKit.cpp

diff --git a/iokit/Kernel/IOStartIOKit.cpp b/iokit/Kernel/IOStartIOKit.cpp
index a5ce3807961f502cfc0240395814a6f3acb918f5..49397d4cb0ad0f300c2417926b7e9abe8e0cba4a 100644 (file)
--- a/iokit/Kernel/IOStartIOKit.cpp
+++ b/iokit/Kernel/IOStartIOKit.cpp
@@ -1,16 +1,19 @@
 /*
 /*

- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2010 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, 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
  * 
  * 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
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER


@@ -20,16 +23,12 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 

- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1998,1999 Apple Computer, Inc.  All rights reserved. 
- *
- * HISTORY
- *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 
 #include <libkern/c++/OSUnserialize.h>
  */
 
 #include <libkern/c++/OSUnserialize.h>

+#include <libkern/c++/OSKext.h>
+#include <libkern/version.h>

 #include <IOKit/IORegistryEntry.h>
 #include <IOKit/IODeviceTreeSupport.h>
 #include <IOKit/IOCatalogue.h>
 #include <IOKit/IORegistryEntry.h>
 #include <IOKit/IODeviceTreeSupport.h>
 #include <IOKit/IOCatalogue.h>


@@ -39,99 +38,107 @@
 #include <IOKit/IOLib.h>
 #include <IOKit/IOKitKeys.h>
 #include <IOKit/IOKitDebug.h>
 #include <IOKit/IOLib.h>
 #include <IOKit/IOKitKeys.h>
 #include <IOKit/IOKitDebug.h>

+#include <IOKit/pwr_mgt/RootDomain.h>
+#include <IOKit/pwr_mgt/IOPMinformeeList.h>
+#include <IOKit/IOStatisticsPrivate.h>
+#include <IOKit/IOKitKeysPrivate.h>

 
 #include <IOKit/assert.h>
 
 
 #include <IOKit/assert.h>
 

+#include "IOKitKernelInternal.h"
+

 extern "C" {
 
 extern void OSlibkernInit (void);
 extern "C" {
 
 extern void OSlibkernInit (void);

-extern void IOLibInit(void);
-
-#include <kern/clock.h>

 
 

-/*XXX power management hacks XXX*/
-#include <IOKit/IOReturn.h>
-#include <IOKit/IOMessage.h>
+void iokit_post_constructor_init(void) __attribute__((section("__TEXT, initcode")));

 
 

-extern void *registerSleepWakeInterest(
-                                               void            *callback,
-                                               void            *target,
-                                               void            *refCon);
-/*XXX power management hacks XXX*/
+#include <kern/clock.h>
+#include <sys/time.h>

 
 

-static void
-calend_wakeup_resynch(
-       thread_call_param_t             p0,
-       thread_call_param_t             p1)
+void IOKitInitializeTime( void )

 {
 {

-       void            IOKitResetTime(void);
+       mach_timespec_t         t;
+
+       t.tv_sec = 30;
+       t.tv_nsec = 0;
+       IOService::waitForService(
+               IOService::resourceMatching("IORTC"), &t );
+#if defined(__i386__) || defined(__x86_64__)
+       IOService::waitForService(
+               IOService::resourceMatching("IONVRAM"), &t );
+#endif

 
 

-       IOKitResetTime();
+    clock_initialize_calendar();

 }
 
 }
 

-static thread_call_t   calend_sleep_wake_call;
-
-static IOReturn
-calend_sleep_wake_notif(
-       void                    *target,
-       void                    *refCon,
-       unsigned int    messageType,
-       void                    *provider,
-       void                    *messageArg,
-       vm_size_t               argSize)
+void IOKitResetTime( void )

 {
 {

-       if (messageType != kIOMessageSystemHasPoweredOn)
-               return (kIOReturnUnsupported);
+    clock_sec_t                secs;
+       clock_usec_t    microsecs;

 
 

-       if (calend_sleep_wake_call != NULL)
-               thread_call_enter(calend_sleep_wake_call);
+    clock_initialize_calendar();
+
+    clock_get_calendar_microtime(&secs, &microsecs);
+    gIOLastWakeTime.tv_sec  = secs;
+    gIOLastWakeTime.tv_usec = microsecs;

 
 

-       return (kIOReturnSuccess);
+    IOService::updateConsoleUsers(NULL, kIOMessageSystemHasPoweredOn);

 }
 
 }
 

-void IOKitResetTime( void )
+void iokit_post_constructor_init(void)

 {
 {

-    mach_timespec_t    t;
-
-    t.tv_sec = 30;
-    t.tv_nsec = 0;
-    IOService::waitForService(
-        IOService::resourceMatching("IORTC"), &t );
-#ifndef i386
-    IOService::waitForService(
-        IOService::resourceMatching("IONVRAM"), &t );
-#endif
+    IORegistryEntry *          root;
+    OSObject *                 obj;

 
 

-       if (calend_sleep_wake_call == NULL) {
-               calend_sleep_wake_call = thread_call_allocate(
-                                                                                       calend_wakeup_resynch, NULL);
+    root = IORegistryEntry::initialize();
+    assert( root );
+    IOService::initialize();
+    IOCatalogue::initialize();
+    IOStatistics::initialize();
+    OSKext::initialize();
+    IOUserClient::initialize();
+    IOMemoryDescriptor::initialize();
+    IORootParent::initialize();

 
 

-               registerSleepWakeInterest((void *)calend_sleep_wake_notif, NULL, NULL);
-       }
+    // Initializes IOPMinformeeList class-wide shared lock
+    IOPMinformeeList::getSharedRecursiveLock();

 
 

-    clock_initialize_calendar();
+    obj = OSString::withCString( version );
+    assert( obj );
+    if( obj ) {
+        root->setProperty( kIOKitBuildVersionKey, obj );
+       obj->release();
+    }
+    obj = IOKitDiagnostics::diagnostics();
+    if( obj ) {
+        root->setProperty( kIOKitDiagnosticsKey, obj );
+       obj->release();
+    }

 }
 
 // From <osfmk/kern/debug.c>
 extern int debug_mode;
 
 }
 
 // From <osfmk/kern/debug.c>
 extern int debug_mode;
 

+/*****
+ * Pointer into bootstrap KLD segment for functions never used past startup.
+ */
+void (*record_startup_extensions_function)(void) = 0;
+

 void StartIOKit( void * p1, void * p2, void * p3, void * p4 )
 {
     IOPlatformExpertDevice *   rootNub;
     int                                debugFlags;
 void StartIOKit( void * p1, void * p2, void * p3, void * p4 )
 {
     IOPlatformExpertDevice *   rootNub;
     int                                debugFlags;

-    IORegistryEntry *          root;
-    OSObject *                 obj;
-    extern const char *         gIOKernelKmods;
-    OSString *                  errorString = NULL; // must release
-    OSDictionary *              fakeKmods;  // must release
-    OSCollectionIterator *      kmodIter;   // must release
-    OSString *                  kmodName;   // don't release
-
-    IOLog( iokit_version );
-
-    if( PE_parse_boot_arg( "io", &debugFlags ))
-       gIOKitDebug = debugFlags;

 
 

+    if( PE_parse_boot_argn( "io", &debugFlags, sizeof (debugFlags) ))
+               gIOKitDebug = debugFlags;
+       
+    if( PE_parse_boot_argn( "iotrace", &debugFlags, sizeof (debugFlags) ))
+               gIOKitTrace = debugFlags;
+       
+       // Compat for boot-args
+       gIOKitTrace |= (gIOKitDebug & kIOTraceCompatBootArgs);
+       

     // Check for the log synchronous bit set in io
     if (gIOKitDebug & kIOLogSynchronous)
         debug_mode = true;
     // Check for the log synchronous bit set in io
     if (gIOKitDebug & kIOLogSynchronous)
         debug_mode = true;


@@ -146,81 +153,45 @@ void StartIOKit( void * p1, void * p2, void * p3, void * p4 )
     IOLibInit(); 
     OSlibkernInit();
 
     IOLibInit(); 
     OSlibkernInit();
 

-    IOLog("_cppInit done\n");
-
-   /*****
-    * Declare the fake kmod_info structs for built-in components
-    * that must be tracked as independent units for dependencies.
-    */
-    fakeKmods = OSDynamicCast(OSDictionary,
-        OSUnserialize(gIOKernelKmods, &errorString));
-
-    if (!fakeKmods) {
-        if (errorString) {
-            panic("Kernel kmod list syntax error: %s\n",
-                    errorString->getCStringNoCopy());
-            errorString->release();
-        } else {
-            panic("Error loading kernel kmod list.\n");
-        }
-    }
-
-    kmodIter = OSCollectionIterator::withCollection(fakeKmods);
-    if (!kmodIter) {
-        panic("Can't declare in-kernel kmods.\n");
-    }
-    while ((kmodName = OSDynamicCast(OSString, kmodIter->getNextObject()))) {
-
-        OSString * kmodVersion = OSDynamicCast(OSString,
-            fakeKmods->getObject(kmodName));
-        if (!kmodVersion) {
-            panic("Can't declare in-kernel kmod; \"%s\" has "
-                "an invalid version.\n",
-                kmodName->getCStringNoCopy());
-        }
-        if (KERN_SUCCESS != kmod_create_fake(kmodName->getCStringNoCopy(),
-                kmodVersion->getCStringNoCopy())) {
-            panic("Failure declaring in-kernel kmod \"%s\".\n",
-                kmodName->getCStringNoCopy());
-        }
-    }
-
-    kmodIter->release();
-    fakeKmods->release();
-
-
-
-    root = IORegistryEntry::initialize();
-    assert( root );
-    IOService::initialize();
-    IOCatalogue::initialize();
-    IOUserClient::initialize();
-    IOMemoryDescriptor::initialize();
-
-    obj = OSString::withCString( iokit_version );
-    assert( obj );
-    if( obj ) {
-        root->setProperty( kIOKitBuildVersionKey, obj );
-       obj->release();
-    }
-    obj = IOKitDiagnostics::diagnostics();
-    if( obj ) {
-        root->setProperty( kIOKitDiagnosticsKey, obj );
-       obj->release();
-    }
-

     rootNub = new IOPlatformExpertDevice;
 
     if( rootNub && rootNub->initWithArgs( p1, p2, p3, p4)) {
         rootNub->attach( 0 );
 
     rootNub = new IOPlatformExpertDevice;
 
     if( rootNub && rootNub->initWithArgs( p1, p2, p3, p4)) {
         rootNub->attach( 0 );
 

-       /* Enter into the catalogue the drivers
-        * provided by BootX.
+       /* If the bootstrap segment set up a function to record startup
+        * extensions, call it now.

         */
         */

-        gIOCatalogue->recordStartupExtensions();
+        if (record_startup_extensions_function) {
+            record_startup_extensions_function();
+        }

 
         rootNub->registerService();
 
         rootNub->registerService();

+
+#if !NO_KEXTD
+       /* Add a busy count to keep the registry busy until kextd has
+        * completely finished launching. This is decremented when kextd
+        * messages the kernel after the in-kernel linker has been
+        * removed and personalities have been sent.
+        */
+        IOService::getServiceRoot()->adjustBusy(1);
+#endif
+    }
+}
+
+void
+IORegistrySetOSBuildVersion(char * build_version)
+{
+    IORegistryEntry * root = IORegistryEntry::getRegistryRoot();
+
+    if (root) {
+        if (build_version) {
+            root->setProperty(kOSBuildVersionKey, build_version);
+        } else {
+            root->removeProperty(kOSBuildVersionKey);
+        }

     }
     }

+
+    return;

 }
 
 }; /* extern "C" */
 }
 
 }; /* extern "C" */