kernel/eka/nkernsmp/arm/ncmonitor.cia
author Mike Kinghan <mikek@symbian.org>
Tue, 16 Nov 2010 14:39:21 +0000
branchGCC_SURGE
changeset 303 9b85206a602c
parent 0 a41df078684a
permissions -rw-r--r--
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) 2008-2009 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\nkernsmp\arm\ncmonitor.cia
// Kernel crash debugger - NKERNSMP ARM specific portion
// 
//

#include <e32cia.h>
#include <kernel/monitor.h>
#include "nk_priv.h"
#include <arm.h>

EXPORT_C __NAKED__ void Monitor::HandleException()
//
// Handle an exception while the monitor is running
//
	{
	asm("mov	r3, r1 ");					// exception type
	asm("ldr	r0, [sp, #24] ");			// code address
	asm("cmp	r1, #%a0 " : : "i" ((TInt)EArmExceptionPrefetchAbort));
	asm("mrceq	p15, 0, r2, c5, c0, 1 ");	// r2=instruction fault status
	asm("mrcne	p15, 0, r2, c5, c0, 0 ");	// r2=data fault status
#ifdef __CPU_ARM_HAS_CP15_IFAR
	asm("mrceq	p15, 0, r1, c6, c0, 2 ");	// r1= IFAR fault address
#else
	asm("moveq	r1, r0 ");					// if no IFAR, must be equal to code address
#endif
	asm("mrcne	p15, 0, r1, c6, c0, 0 ");	// r1= DFAR fault address
	asm("add	sp, sp, #28 ");				// restore mode_abt/mode_und stack balance
	__ASM_CLI_MODE(MODE_FIQ);				// back into mode_fiq
	asm("ldr	r12, __TheMonitorPtr ");
	asm("ldr	r12, [r12] ");
	asm("add	r12, r12, #%a0" : : "i" _FOFF(Monitor,iExceptionInfo));
	asm("stmia	r12, {r0-r3} ");			// store exc info
	asm("mov	r0, #%a0" : : "i" ((TInt)KErrAbort));
	asm("b "	CSM_ZN7Monitor5LeaveEi );

	asm("__TheMonitorPtr: ");
	asm(".word	TheMonitorPtr ");
	}