kernel/eka/memmodel/emul/win32/zrom.cpp
changeset 43 96e5fb8b040d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kernel/eka/memmodel/emul/win32/zrom.cpp	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,149 @@
+// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// e32\memmodel\emul\win32\zrom.cpp
+// Emulator implementation of the ROM related parts of the system
+// 
+//
+
+#include "plat_priv.h"
+#include <property.h>
+#include <emulator.h>
+#include "memmodel.h"
+
+const char* KVariantDllName="ecust.dll";
+
+TInt P::DefaultInitialTime()
+	{
+//
+// Not used on emulator
+//
+	return KErrGeneral;
+	}
+
+TInt P::InitSystemTime()
+	{
+//
+//  Initialise system time
+//	Return the initial time in seconds from 00:00:00 01-01-2000
+//
+	TUint dummy;
+	K::SetSystemTimeAndOffset(0, 0, 0, dummy, ETimeSetOffset|ETimeSetNoTimeUpdate);
+
+	__KTRACE_OPT(KBOOT,Kern::Printf("Use Host time to set system time"));
+    TInt seconds;
+	A::SystemTimeInSecondsFrom2000(seconds);
+	return seconds;
+	}
+
+
+void P::CreateVariant()
+	{
+	__KTRACE_OPT(KBOOT,Kern::Printf("CreateVariant"));
+	HINSTANCE var = LoadLibraryA(KVariantDllName);
+	if (var)
+		{
+		TLibraryEntry entryPoint=(TLibraryEntry)Emulator::GetProcAddress(var, "_E32Dll");
+		if (entryPoint)
+			{
+			__KTRACE_OPT(KBOOT,Kern::Printf("Found variant"));
+			// Call the entry point (global constructors)
+			__KTRACE_OPT(KBOOT,Kern::Printf("Calling entrypoint %08x",entryPoint));
+			TInt r=entryPoint(KModuleEntryReasonVariantInit0);
+			__KTRACE_OPT(KBOOT,Kern::Printf("Entrypoint returned %d",r));
+			if (r<0)
+				Kern::Fault("VariantEntry",r);
+
+			// Initialise and create the variant object
+			r=A::CreateVariant(var, r);
+			if (r<0)
+				Kern::Fault("VariantInit",r);
+			__KTRACE_OPT(KBOOT,Kern::Printf("Variant installed"));
+
+			BTrace::Init0(); // we have to do this after variant has initialised the SuperPage
+			return;
+			}
+		}
+	Kern::Fault("NoVariant",0);
+	}
+
+
+TInt StartExtension(const char* aExtension)
+	{
+	HINSTANCE ext;
+ 	HMODULE mh;
+ 	if (*aExtension == '?')
+ 		{
+ 		ext = LoadLibraryA(++aExtension);
+ 		if (!ext)
+ 			{
+ 			__KTRACE_OPT(KBOOT, Kern::Printf("Optional extension \"%s\" not found", aExtension));
+ 			return KErrNone;
+ 			}
+ 		}
+ 	else
+ 		{
+ 		ext = LoadLibraryA(aExtension);
+ 		if (!ext)
+ 			return KErrNotFound;
+ 		}		
+ 	mh = GetModuleHandleA(aExtension);	
+	TLibraryEntry entryPoint=(TLibraryEntry)Emulator::GetProcAddress(ext, "_E32Dll");
+	if (!entryPoint)
+		return KErrArgument;
+	TInt r=entryPoint(KModuleEntryReasonExtensionInit0);
+	if (r!=KErrNone)
+		{
+		__KTRACE_OPT(KBOOT,Kern::Printf("Extension %s already started", aExtension));
+		return KErrNone;
+		}
+	DCodeSeg::Wait();
+	r=MM::RegisterModule(mh);
+	DCodeSeg::Signal();
+	if (r!=KErrNone)
+		return r;
+	__KTRACE_OPT(KBOOT,Kern::Printf("Calling entrypoint of %s extension ", aExtension));
+	return entryPoint(KModuleEntryReasonExtensionInit1);
+	}
+
+
+void P::StartExtensions()
+	{
+	HMODULE mh = GetModuleHandleA(KVariantDllName);
+	TInt r = MM::RegisterModule(mh);
+	const char* extension = NULL;
+	if (r==KErrNone)
+		extension = Property::GetString("Extension");
+	if (extension)
+		{
+		for (;;)
+			{
+			char name[128];
+			const char* end = strchr(extension, ';');
+			if (!end)
+				break;
+			strncpy(name, extension, end-extension);
+			name[end-extension] = '\0';
+			if (strchr(name, '.') == NULL)
+				strcat(name, ".dll");
+			r = StartExtension(name);
+			if (r != KErrNone)
+				break;
+			extension = end+1;
+			}
+		if (r==KErrNone)
+			r = StartExtension(extension);
+		}
+	if (r != KErrNone)
+		K::Fault(K::EStartExtensionsFailed);
+	}