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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32\euser\epoc\x86\uc_exe.cia
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//
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//
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#include <u32std.h>
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#include "x86hlp.inl"
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static const TLinAddr User_HandleException = (TLinAddr)&User::HandleException;
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static const TLinAddr User_Invariant = (TLinAddr)&User::Invariant;
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extern "C" {
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void __fastcall RunThread(TBool aNotFirst, SThreadCreateInfo& aInfo);
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// NOTE: This MUST be the first function in this module
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__NAKED__ TInt _E32Startup()
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{
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// Process entry point
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// EBX = entry reason
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// ESP points to information block
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BYTE(0xeb) // JMP .+16
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BYTE(0x0e)
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BYTE(0x00)
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BYTE(0x00)
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BYTE(0x00)
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BYTE(0x00)
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BYTE(0x00)
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BYTE(0x00)
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BYTE(0x00)
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BYTE(0x00)
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BYTE(0x00)
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BYTE(0x00)
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BYTE(0x00) // need zero word at offset 12 from entry point
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BYTE(0x00)
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BYTE(0x00)
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BYTE(0x00)
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asm("cmp ebx, 2");
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asm("jae not_thread_entry");
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asm("mov ecx, ebx");
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asm("mov edx, esp");
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asm("jmp %a0": :"i"(&RunThread));
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asm("not_thread_entry:");
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asm("cmp ebx, 4");
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asm("jne invalid_entry");
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asm("mov eax, esp");
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asm("push eax");
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asm("mov eax, %0": : "i"(User_HandleException));
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asm("call eax");
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asm("pop eax"); // parameter
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asm("pop eax"); // exc type
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asm("pop eax"); // exc id
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asm("pop eax"); // exc error code
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asm("pop eax"); // fault address
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asm("pop eax");
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asm("pop ecx");
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asm("pop edx");
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asm("pop ebx");
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asm("pop esi"); // ESP - ignore
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asm("pop ebp");
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asm("pop esi");
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asm("pop edi");
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asm("add esp, 4"); // SS - ignore
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asm("pop ds");
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asm("pop es");
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asm("pop fs");
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asm("pop gs");
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asm("popfd");
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BYTE(0xcb) //asm("retf"); GCC doesn't recognise retf
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asm("invalid_entry:");
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asm("call %a0": : "i"(User_Invariant));
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}
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}
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