diff -r 000000000000 -r a41df078684a kernel/eka/euser/epoc/x86/uc_exec.cia --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/kernel/eka/euser/epoc/x86/uc_exec.cia Mon Oct 19 15:55:17 2009 +0100 @@ -0,0 +1,138 @@ +// Copyright (c) 2007-2009 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\euser\epoc\x86\uc_exec.cia +// +// + +#define __GEN_USER_EXEC_CODE__ + +#include +#include + + +/****************************************************************************** +* Slow executive calls with preprocessing or extra arguments +******************************************************************************/ +__NAKED__ TInt Exec::SessionSend(TInt /*aHandle*/, TInt /*aFunction*/, TAny* /*aPtr*/, TRequestStatus* /*aStatus*/) +// +// Send a blind message to the server. +// + { + SLOW_EXEC4(EExecSessionSend); + } + +__NAKED__ TInt Exec::SessionSendSync(TInt /*aHandle*/, TInt /*aFunction*/, TAny* /*aPtr*/, TRequestStatus* /*aStatus*/) +// +// Send a blind message to the server using thread's dedicated message slot. +// + { + SLOW_EXEC4(EExecSessionSendSync); + } + +__NAKED__ TInt Exec::MessageIpcCopy(TInt /*aHandle*/, TInt /*aParam*/, SIpcCopyInfo& /*aInfo*/, TInt /*anOffset*/) +// +// IPC transfer using message handle +// + { + SLOW_EXEC4(EExecMessageIpcCopy); + } + +__NAKED__ TInt Exec::BTraceOut(TUint32 /*a0*/, TUint32 /*a1*/, const BTrace::SExecExtension& /*aExtension*/, TInt /*aDataSize*/) + { + SLOW_EXEC4(EExecBTraceOut); + } + +__NAKED__ TInt Exec::BTraceOutBig(TUint32 /*a0*/, TUint32 /*a1*/, const BTrace::SExecExtension& /*aExtension*/, TInt /*aDataSize*/) + { + SLOW_EXEC4(EExecBTraceOutBig); + } + +__NAKED__ TInt Exec::UTraceOut(TUint32 /*a0*/, TUint32 /*a1*/, const BTrace::SExecExtension& /*aExtension*/, TInt /*aDataSize*/) + { + SLOW_EXEC4(EExecUTraceOut); + } + +__NAKED__ void ExitCurrentThread(TExitType /*aType*/, TInt /*aReason*/, const TDesC8* /*aCategory*/) + { + asm("mov eax, %0": : "i"(EExecThreadKill)); + asm("push ebx"); // push these anyway for debug + asm("push esi"); + asm("mov ecx, %0": : "i"(0xffff8001)); // gcc/gas doesnt like KCurrentThreadHandle + asm("mov edx, [esp+12]"); + asm("mov ebx, [esp+16]"); + asm("mov esi, [esp+20]"); + asm("int 0x21"); + // doesn't return + } + +EXPORT_C __NAKED__ void RThread::RequestComplete(TRequestStatus*& aStatus, TInt aReason) const +/** +Signals this thread that an asynchronous request originating from this thread, +is complete. + +The request is associated with the specified request status object supplied +by this thread. + +Typically, the caller of this function is the service provider responsible +for satisfying the request made by this thread. + +The request is completed with the completion code passed in aReason. This +value is copied into this thread's request status, *aStatus, before signalling +this thread's request semaphore. + +The meaning of the completion code is a matter of convention to be decided +between the service provider and this thread. + +In a client-server situation, completion of a request takes place in the context +of the server thread, but the pointer is interpreted in the address space +of the client. + +It is often the case in client-server situations that the client and the server +are in the same address space (i.e. the same process). + +Setting the pointer to the request status to NULL is a convenience, not all +servers need it. + +@param aStatus A reference to a pointer to the request status originally +supplied by this thread. This is a pointer into this thread's +address space, which may be different to the thread currently +executing (this code). On return, the pointer to the request +status is set to NULL. + +@param aReason The completion code of this request. +*/ +// +// Signal a request completion. +// NOTE: __thiscall convention - we must remove parameters +// + { + THISCALL_PROLOG2() + asm("push ebx"); + asm("mov ecx, [ecx]"); + asm("mov eax, [esp+8]"); + asm("mov ebx, [esp+12]"); + asm("xor edx, edx"); + asm("lock xchg edx, [eax]"); + asm("cmp edx, 0"); + asm("je ExecRequestComplete_ret"); + asm("mov [edx], ebx"); // write to request status + asm("mov eax, %0": : "i"(EExecThreadRequestSignal)); + asm("int 0x21"); + asm("ExecRequestComplete_ret:"); + asm("pop ebx"); + THISCALL_EPILOG2() + } + + +