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--- xnu/xnu-124.7/libkern/c++/OSMetaClass.cpp
+++ xnu/xnu-517.12.7/libkern/c++/OSMetaClass.cpp
@@ -46,6 +46,7 @@
#include <kern/lock.h>
#include <kern/clock.h>
#include <kern/thread_call.h>
+#include <kern/host.h>
#include <mach/kmod.h>
#include <mach/mach_interface.h>
@@ -84,12 +85,16 @@
static const char OSMetaClassBasePanicMsg[] =
"OSMetaClassBase::_RESERVEDOSMetaClassBase%d called\n";
+#if SLOT_USED
void OSMetaClassBase::_RESERVEDOSMetaClassBase0()
{ panic(OSMetaClassBasePanicMsg, 0); }
void OSMetaClassBase::_RESERVEDOSMetaClassBase1()
{ panic(OSMetaClassBasePanicMsg, 1); }
void OSMetaClassBase::_RESERVEDOSMetaClassBase2()
{ panic(OSMetaClassBasePanicMsg, 2); }
+#endif /* SLOT_USED */
+
+// As these slots are used move them up inside the #if above
void OSMetaClassBase::_RESERVEDOSMetaClassBase3()
{ panic(OSMetaClassBasePanicMsg, 3); }
void OSMetaClassBase::_RESERVEDOSMetaClassBase4()
@@ -98,6 +103,28 @@
{ panic(OSMetaClassBasePanicMsg, 5); }
void OSMetaClassBase::_RESERVEDOSMetaClassBase6()
{ panic(OSMetaClassBasePanicMsg, 6); }
+
+/*
+ * These used to be inline in the header but gcc didn't believe us
+ * Now we MUST pull the inline out at least until the compiler is
+ * repaired.
+ */
+// Helper inlines for runtime type preprocessor macros
+OSMetaClassBase *OSMetaClassBase::
+safeMetaCast(const OSMetaClassBase *me, const OSMetaClass *toType)
+ { return (me)? me->metaCast(toType) : 0; }
+
+bool OSMetaClassBase::
+checkTypeInst(const OSMetaClassBase *inst, const OSMetaClassBase *typeinst)
+{
+ const OSMetaClass *toType = OSTypeIDInst(typeinst);
+ return typeinst && inst && (0 != inst->metaCast(toType));
+}
+
+
+// If you need this slot you had better setup an IOCTL style interface.
+// 'Cause the whole kernel world depends on OSMetaClassBase and YOU
+// CANT change the VTABLE size ever.
void OSMetaClassBase::_RESERVEDOSMetaClassBase7()
{ panic(OSMetaClassBasePanicMsg, 7); }
@@ -141,7 +168,7 @@
OSMetaClassBase *OSMetaClassBase::metaCast(const char *toMetaCStr) const
{
- const OSSymbol *tempSymb = OSSymbol::withCStringNoCopy(toMetaCStr);
+ const OSSymbol *tempSymb = OSSymbol::withCString(toMetaCStr);
OSMetaClassBase *ret = 0;
if (tempSymb) {
ret = metaCast(tempSymb);
@@ -296,12 +323,13 @@
}
}
-// Don't do anything as these classes must be statically allocated
void *OSMetaClass::operator new(size_t size) { return 0; }
-void OSMetaClass::operator delete(void *mem, size_t size) { }
void OSMetaClass::retain() const { }
void OSMetaClass::release() const { }
-void OSMetaClass::release(int when) const { };
+void OSMetaClass::release(int when) const { }
+void OSMetaClass::taggedRetain(const void *tag) const { }
+void OSMetaClass::taggedRelease(const void *tag) const { }
+void OSMetaClass::taggedRelease(const void *tag, const int when) const { }
int OSMetaClass::getRetainCount() const { return 0; }
const char *OSMetaClass::getClassName() const
@@ -318,10 +346,10 @@
{
if (!loadLock) {
loadLock = mutex_alloc(ETAP_IO_AHA);
- _mutex_lock(loadLock);
+ mutex_lock(loadLock);
}
else
- _mutex_lock(loadLock);
+ mutex_lock(loadLock);
sStalled = (StalledData *) kalloc(sizeof(*sStalled));
if (sStalled) {
@@ -464,10 +492,10 @@
if (!loadLock) {
loadLock = mutex_alloc(ETAP_IO_AHA);
- _mutex_lock(loadLock);
+ mutex_lock(loadLock);
}
else
- _mutex_lock(loadLock);
+ mutex_lock(loadLock);
do {
OSSet *kmodClasses;
@@ -523,6 +551,8 @@
iter->release();
}
+extern "C" kern_return_t kmod_unload_cache(void);
+
static void _OSMetaClassConsiderUnloads(thread_call_param_t p0,
thread_call_param_t p1)
{
@@ -531,11 +561,11 @@
OSCollectionIterator *kmods;
OSCollectionIterator *classes;
OSMetaClass *checkClass;
- kmod_info_t *ki;
+ kmod_info_t *ki = 0;
kern_return_t ret;
bool didUnload;
- _mutex_lock(loadLock);
+ mutex_lock(loadLock);
do {
@@ -546,12 +576,18 @@
didUnload = false;
while ( (kmodName = (OSSymbol *) kmods->getNextObject()) ) {
- ki = kmod_lookupbyname((char *)kmodName->getCStringNoCopy());
+ if (ki) {
+ kfree((vm_offset_t) ki, sizeof(kmod_info_t));
+ ki = 0;
+ }
+
+ ki = kmod_lookupbyname_locked((char *)kmodName->getCStringNoCopy());
if (!ki)
continue;
- if (ki->reference_count)
- continue;
+ if (ki->reference_count) {
+ continue;
+ }
kmodClasses = OSDynamicCast(OSSet,
sKModClassesDict->getObject(kmodName));
@@ -570,13 +606,15 @@
didUnload = true;
}
- } while (false);
+ }
kmods->release();
} while (didUnload);
mutex_unlock(loadLock);
+
+ kmod_unload_cache();
}
void OSMetaClass::considerUnloads()
@@ -584,7 +622,7 @@
static thread_call_t unloadCallout;
AbsoluteTime when;
- _mutex_lock(loadLock);
+ mutex_lock(loadLock);
if (!unloadCallout)
unloadCallout = thread_call_allocate(&_OSMetaClassConsiderUnloads, 0);
@@ -630,7 +668,7 @@
OSObject *OSMetaClass::allocClassWithName(const OSSymbol *name)
{
OSObject * result;
- _mutex_lock(loadLock);
+ mutex_lock(loadLock);
const OSMetaClass * const meta = getMetaClassWithName(name);
@@ -665,7 +703,7 @@
checkMetaCastWithName(const OSSymbol *name, const OSMetaClassBase *in)
{
OSMetaClassBase * result;
- _mutex_lock(loadLock);
+ mutex_lock(loadLock);
const OSMetaClass * const meta = getMetaClassWithName(name);
if (meta)
@@ -764,31 +802,50 @@
OSDictionary * OSMetaClass::getClassDictionary()
{
- return sAllClassesDict;
+ panic("OSMetaClass::getClassDictionary(): Obsoleted\n");
+ return 0;
}
bool OSMetaClass::serialize(OSSerialize *s) const
{
- OSDictionary * dict;
- OSNumber * off;
- bool ok = false;
-
- if (s->previouslySerialized(this)) return true;
-
- dict = 0;// IODictionary::withCapacity(2);
- off = OSNumber::withNumber(getInstanceCount(), 32);
-
- if (dict) {
- dict->setObject("InstanceCount", off );
- ok = dict->serialize(s);
- } else if( off)
- ok = off->serialize(s);
-
- if (dict)
- dict->release();
- if (off)
- off->release();
-
- return ok;
-}
-
+ panic("OSMetaClass::serialize(): Obsoleted\n");
+ return false;
+}
+
+void OSMetaClass::serializeClassDictionary(OSDictionary *serializeDictionary)
+{
+ OSDictionary *classDict;
+
+ classDict = OSDictionary::withCapacity(sAllClassesDict->getCount());
+ if (!classDict)
+ return;
+
+ mutex_lock(loadLock);
+ do {
+ OSCollectionIterator *classes;
+ const OSSymbol *className;
+
+ classes = OSCollectionIterator::withCollection(sAllClassesDict);
+ if (!classes)
+ break;
+
+ while ((className = (const OSSymbol *) classes->getNextObject())) {
+ const OSMetaClass *meta;
+ OSNumber *count;
+
+ meta = (OSMetaClass *) sAllClassesDict->getObject(className);
+ count = OSNumber::withNumber(meta->getInstanceCount(), 32);
+ if (count) {
+ classDict->setObject(className, count);
+ count->release();
+ }
+ }
+ classes->release();
+
+ serializeDictionary->setObject("Classes", classDict);
+ } while (0);
+
+ mutex_unlock(loadLock);
+
+ classDict->release();
+}