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157 lines
3.7 KiB
ArmAsm
157 lines
3.7 KiB
ArmAsm
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: BSD - See COPYING.ARM in the top level directory
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* FILE: ntoskrnl/ke/arm/trap.s
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* PURPOSE: Support for exceptions and interrupts on ARM machines
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* PROGRAMMERS: ReactOS Portable Systems Group
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*/
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#include <ksarm.h>
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IMPORT KiUndefinedExceptionHandler
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IMPORT KiSoftwareInterruptHandler
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IMPORT KiPrefetchAbortHandler
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IMPORT KiDataAbortHandler
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IMPORT KiInterruptHandler
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TEXTAREA
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EXPORT KiArmVectorTable
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KiArmVectorTable
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b . // Reset
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ldr pc, _KiUndefinedInstructionJump // Undefined Instruction
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ldr pc, _KiSoftwareInterruptJump // Software Interrupt
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ldr pc, _KiPrefetchAbortJump // Prefetch Abort
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ldr pc, _KiDataAbortJump // Data Abort
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b . // Reserved
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ldr pc, _KiInterruptJump // Interrupt
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ldr pc, _KiFastInterruptJump // Fast Interrupt
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_KiUndefinedInstructionJump DCD KiUndefinedInstructionException
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_KiSoftwareInterruptJump DCD KiSoftwareInterruptException
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_KiPrefetchAbortJump DCD KiPrefetchAbortException
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_KiDataAbortJump DCD KiDataAbortException
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_KiInterruptJump DCD KiInterruptException
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_KiFastInterruptJump DCD KiFastInterruptException
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// Might need to move these to a custom header, when used by HAL as well
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MACRO
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TRAP_PROLOG $Abort
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__debugbreak
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MEND
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MACRO
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SYSCALL_PROLOG $Abort
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__debugbreak
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MEND
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MACRO
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TRAP_EPILOG $SystemCall
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__debugbreak
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MEND
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NESTED_ENTRY KiUndefinedInstructionException
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PROLOG_END KiUndefinedInstructionException
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/* Handle trap entry */
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TRAP_PROLOG 0 // NotFromAbort
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/* Call the C handler */
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ldr lr, =KiExceptionExit
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mov r0, sp
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ldr pc, =KiUndefinedExceptionHandler
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NESTED_END KiUndefinedInstructionException
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NESTED_ENTRY KiSoftwareInterruptException
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PROLOG_END KiSoftwareInterruptException
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/* Handle trap entry */
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SYSCALL_PROLOG
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/* Call the C handler */
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ldr lr, =KiServiceExit
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mov r0, sp
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ldr pc, =KiSoftwareInterruptHandler
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NESTED_END KiSoftwareInterruptException
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NESTED_ENTRY KiPrefetchAbortException
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PROLOG_END KiPrefetchAbortException
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/* Handle trap entry */
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TRAP_PROLOG 0 // NotFromAbort
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/* Call the C handler */
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ldr lr, =KiExceptionExit
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mov r0, sp
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ldr pc, =KiPrefetchAbortHandler
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NESTED_END KiPrefetchAbortException
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NESTED_ENTRY KiDataAbortException
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PROLOG_END KiDataAbortException
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/* Handle trap entry */
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TRAP_PROLOG 1 // FromAbort
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/* Call the C handler */
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ldr lr, =KiExceptionExit
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mov r0, sp
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ldr pc, =KiDataAbortHandler
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NESTED_END KiDataAbortException
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NESTED_ENTRY KiInterruptException
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PROLOG_END KiInterruptException
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/* Handle trap entry */
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TRAP_PROLOG 0 // NotFromAbort
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/* Call the C handler */
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ldr lr, =KiExceptionExit
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mov r0, sp
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mov r1, #0
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ldr pc, =KiInterruptHandler
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NESTED_END KiInterruptException
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NESTED_ENTRY KiFastInterruptException
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PROLOG_END KiFastInterruptException
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// FIXME-PERF: Implement FIQ exception
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__debugbreak
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NESTED_END KiFastInterruptException
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NESTED_ENTRY KiExceptionExit
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PROLOG_END KiExceptionExit
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/* Handle trap exit */
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TRAP_EPILOG 0 // NotFromSystemCall
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NESTED_END KiExceptionExit
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NESTED_ENTRY KiServiceExit
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PROLOG_END KiServiceExit
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/* Handle trap exit */
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TRAP_EPILOG 1 // FromSystemCall
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NESTED_END KiServiceExit
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LEAF_ENTRY KiInterruptTemplate
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DCD 0
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LEAF_END KiInterruptTemplate
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END
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/* EOF */
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