Trying to figure out how to implement my WINC like compatibility layer. Going the emulation way is probably not so smart. We should not use the kernel but rather hook native functions in the Exec calls.
// Copyright (c) 1994-2009 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\epoc\multiple\mmonitor.cpp
// Kernel crash debugger - machine independent portion
//
//
#include <kernel/monitor.h>
#include "memmodel.h"
void Monitor::DumpMemModelProcessData(DProcess* aProcess)
{
DMemModelProcess* pP=(DMemModelProcess*)aProcess;
Printf("OS ASID=%d, LPD=%08x, GPD=%08x\r\n",pP->iOsAsid,pP->iLocalPageDir,pP->iGlobalPageDir);
Printf("ChunkCount=%d ChunkAlloc=%d\r\n",pP->iChunkCount,pP->iChunkAlloc);
TInt i;
for (i=0; i<pP->iChunkCount; i++)
{
DMemModelProcess::SChunkInfo& ci=pP->iChunks[i];
Printf("%d: Chunk %08x, access count %d\r\n",i,ci.iChunk,ci.iAccessCount);
}
}
void Monitor::DumpChunkData(DChunk* aChunk)
{
DMemModelChunk* pC=(DMemModelChunk*)aChunk;
Printf("Owning Process %08x OS ASIDS %08x\r\n",pC->iOwningProcess,pC->iOsAsids);
Printf("Size %x, MaxSize %x, Base %08x\r\n",pC->iSize,pC->iMaxSize,pC->iBase);
Printf("Attrib %x, StartPos %x\r\n",pC->iAttributes,pC->iStartPos);
Printf("Type %d\r\n",pC->iChunkType);
Printf("PTE: %08x, PDE: %08x\r\n", pC->iPtePermissions,pC->iPdePermissions);
Printf("PageTables=%08x, PageBitMap=%08x, PermPgBitMap=%08x\r\n",pC->iPageTables,pC->iPageBitMap,pC->iPermanentPageBitMap);
DumpCpuChunkData(pC);
if (pC->iKernelMirror)
{
Printf("iKernelMirror=%08x\r\n", pC->iKernelMirror);
DumpObjectData((DMonObject*)pC->iKernelMirror, EChunk);
}
}
void Monitor::MMProcessInfoCommand()
{
TScheduler* pS=TScheduler::Ptr();
#ifdef __SMP__
TInt i;
for (i=0; i<KMaxCpus; ++i)
{
DMonObject* pA = (DMonObject*)pS->iSub[i]->iAddressSpace;
Printf("CPU%d: TheCurrentAddressSpace=%08x\r\n",i,pA);
}
#else
DMonObject* pA=(DMonObject*)pS->iAddressSpace;
Printf("TheCurrentAddressSpace=%08x\r\n",pA);
#endif
}
void Monitor::MDisplayCodeSeg(DCodeSeg* aSeg)
{
DMemModelCodeSeg* seg = (DMemModelCodeSeg*) aSeg;
DMemModelCodeSegMemory* mem = seg->Memory();
Printf(" iPageCount: %x\r\n",mem ? mem->iPageCount : 0);
Printf(" iPages: %08x (%08x)\r\n",mem ? mem->iPages : 0, mem ? *mem->iPages : 0);
Printf(" iCodeAllocBase: %08x\r\n",seg->iCodeAllocBase);
Printf(" iDataAllocBase: %08x\r\n",seg->iDataAllocBase);
Printf(" iKernelData: %08x\r\n",seg->iKernelData);
Printf(" iOsAsids: %08x\r\n",mem ? mem->iOsAsids : 0);
Printf(" iCreator: %08x\r\n",mem ? mem->iCreator : 0);
}
extern TInt MapProcess(DMemModelProcess* aProcess, TBool aForce);
EXPORT_C TUint Monitor::MapAndLocateUserStack(DThread* aThread)
{
DMemModelProcess* pP=(DMemModelProcess*)aThread->iOwningProcess;
TInt r = SwitchAddressSpace(pP, EFalse);
if (r!=KErrNone)
return 0;
return aThread->iUserStackRunAddress;
}
EXPORT_C TInt Monitor::SwitchAddressSpace(DProcess* aProcess, TBool aForce)
{
return MapProcess((DMemModelProcess*)aProcess, aForce);
}