ARMException Class Reference

ARM exception handling functionality. More...

#include <ARMException.h>

Public Types
enum	ExceptionType {   Reset = 0, UndefinedInstruction, SoftwareInterrupt, PrefetchAbort,   DataAbort, Reserved, IRQ, FIQ }
	ARM exception types. More...
enum	Result { Success, NotFound, IOError }
	Result codes. More...
typedef void	Handler(struct CPUState state)
	Function which is called when the CPU is interrupted. More...

Public Member Functions
	ARMException (Address base)
	Constructor. More...
Result	install (ExceptionType vector, Handler handler)
	Install an exception handler. More...

Private Attributes
Address	m_vecTable
	ARM exception vector jump table. More...

Detailed Description

ARM exception handling functionality.

Definition at line 44 of file ARMException.h.

Member Typedef Documentation

Handler

typedef void ARMException::Handler(struct CPUState state)

Function which is called when the CPU is interrupted.

Parameters

state

State of the CPU on the moment the interrupt occurred.

Definition at line 78 of file ARMException.h.

Member Enumeration Documentation

ExceptionType

enum ARMException::ExceptionType

ARM exception types.

Enumerator
Reset
UndefinedInstruction
SoftwareInterrupt
PrefetchAbort
DataAbort
Reserved
IRQ
FIQ

Definition at line 51 of file ARMException.h.

Result

enum ARMException::Result

Result codes.

Enumerator
Success
NotFound
IOError

Definition at line 66 of file ARMException.h.

Constructor & Destructor Documentation

ARMException()

ARMException::ARMException

(

Address

base

)

Constructor.

Parameters

base	Base address of the interrupt jump table. By default this is physical address 0x0 in RAM.

Definition at line 25 of file ARMException.cpp.

References ARM_EX_VECTAB_SIZE, MemoryBlock::copy(), m_vecTable, sysctrl_read, sysctrl_write, vbar_set, and vecTable.

Member Function Documentation

install()

ARMException::Result ARMException::install	(	ARMException::ExceptionType	vector,
		ARMException::Handler	handler
	)

Install an exception handler.

Parameters

vector	Exception vector to install
handler	Exception handler function to install.

Returns

Result code

Definition at line 39 of file ARMException.cpp.

References handlerTable, and Success.

Referenced by ARMKernel::ARMKernel(), RaspberryKernel::RaspberryKernel(), and SunxiKernel::SunxiKernel().

Field Documentation

m_vecTable

Address ARMException::m_vecTable

private

ARM exception vector jump table.

The ARM processor will start executing at the appropriate vector offset in the jump table and perform a jump to the exception handler address, which it retrieves from the exception handlers table.

See also

m_handlerTable;

ARMExceptionTable.S

Definition at line 113 of file ARMException.h.

Referenced by ARMException().

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The documentation for this class was generated from the following files:

• lib/libarch/arm/ARMException.h
• lib/libarch/arm/ARMException.cpp