We need a way to pass flags to rombuilds in Raptor via extension flm interfaces, so that the CPP pass
of the rom input files can be informed what toolchain we are building with and conditionally
include or exclude files depending on whether the toolchain could build them.
// 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\nkern\x86\ncutils.cia
//
//
#include <x86.h>
EXPORT_C __NAKED__ TUint64 X86::Timestamp()
{
asm("rdtsc");
asm("ret");
}
extern "C" __NAKED__ void NKIdle(TUint32)
{
asm("hlt");
asm("ret");
}
__NAKED__ void InitFpu()
{
asm("mov eax, cr0");
asm("and al, 0xf7"); // enable access to FPU
asm("mov cr0, eax");
asm("fninit");
asm("lea ecx, %a0": : "i"(DefaultCoprocessorState));
asm("fwait");
asm("fnsave [ecx]"); // save clean coprocessor state
asm("fwait");
asm("or al, 8");
asm("mov cr0, eax"); // disable access to coprocessor
asm("ret");
}
const TLinAddr addressof_CrashState = (TLinAddr)&::CrashState;
const TLinAddr addressof_X86_Regs = (TLinAddr)&::X86_Regs;
const TLinAddr addressof_X86_IrqNestCount = (TLinAddr)&::X86_IrqNestCount;
/** @internalTechnology
Called to indicate that the system has crashed and all CPUs should be
halted and should dump their registers.
Doesn't return
*/
__NAKED__ void NKern::NotifyCrash(const TAny* /*a0*/, TInt /*a1*/)
{
asm("pushfd ");
asm("cli ");
asm("push ebp ");
asm("mov ebp, %0" : : "i" (addressof_CrashState));
asm("mov dword ptr [ebp], 1 ");
asm("mov ebp, %0" : : "i" (addressof_X86_Regs));
asm("mov [ebp+%0], eax" : : "i" _FOFF(SFullX86RegSet,iEax));
asm("mov [ebp+%0], ebx" : : "i" _FOFF(SFullX86RegSet,iEbx));
asm("mov [ebp+%0], ecx" : : "i" _FOFF(SFullX86RegSet,iEcx));
asm("mov [ebp+%0], edx" : : "i" _FOFF(SFullX86RegSet,iEdx));
asm("mov [ebp+%0], esi" : : "i" _FOFF(SFullX86RegSet,iEsi));
asm("mov [ebp+%0], edi" : : "i" _FOFF(SFullX86RegSet,iEdi));
asm("pop dword ptr [ebp+%0]" : : "i" _FOFF(SFullX86RegSet,iEbp)); // pushed EBP
asm("pop dword ptr [ebp+%0]" : : "i" _FOFF(SFullX86RegSet,iEflags)); // pushed EFLAGS
asm("pop dword ptr [ebp+%0]" : : "i" _FOFF(SFullX86RegSet,iEip)); // return address
asm("pop dword ptr [ebp+%0]" : : "i" _FOFF(SFullX86RegSet,iFaultCategory)); // a0 parameter
asm("pop dword ptr [ebp+%0]" : : "i" _FOFF(SFullX86RegSet,iFaultReason)); // a1 parameter
asm("mov [ebp+%0], esp" : : "i" _FOFF(SFullX86RegSet,iEsp));
asm("lea eax, [ebp+%0]" : : "i" _FOFF(SFullX86RegSet,iCs));
asm("mov [eax], cs ");
asm("mov [eax+4], ds ");
asm("mov [eax+8], es ");
asm("mov [eax+12], fs ");
asm("mov [eax+16], gs ");
asm("mov [eax+20], ss ");
asm("mov ebx, %0" : : "i" (addressof_X86_IrqNestCount));
asm("mov eax, 0x80000000 ");
asm("lock xchg eax, [ebx] ");
asm("mov [ebp+%0], eax" : : "i" _FOFF(SFullX86RegSet,iIrqNestCount));
asm("xor eax, eax ");
asm("push eax ");
asm("push eax ");
asm("push eax ");
asm("call %a0" : : "i" (NKCrashHandler));
asm("pop eax ");
asm("pop eax ");
asm("pop eax ");
asm("push dword ptr [ebp+%0]" : : "i" _FOFF(SFullX86RegSet,iFaultReason)); // a1 parameter
asm("push dword ptr [ebp+%0]" : : "i" _FOFF(SFullX86RegSet,iFaultCategory)); // a0 parameter
asm("push 1 ");
asm("call %a0" : : "i" (NKCrashHandler));
asm("int 0xff "); // shouldn't get here
}