+++ /dev/null
-/******************************************************************************
-*
-* Copyright (C) 2015 - 2016 Xilinx, Inc. All rights reserved.
-*
-* Permission is hereby granted, free of charge, to any person obtaining a copy
-* of this software and associated documentation files (the "Software"), to deal
-* in the Software without restriction, including without limitation the rights
-* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-* copies of the Software, and to permit persons to whom the Software is
-* furnished to do so, subject to the following conditions:
-*
-* The above copyright notice and this permission notice shall be included in
-* all copies or substantial portions of the Software.
-*
-* Use of the Software is limited solely to applications:
-* (a) running on a Xilinx device, or
-* (b) that interact with a Xilinx device through a bus or interconnect.
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
-* XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
-* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-* SOFTWARE.
-*
-* Except as contained in this notice, the name of the Xilinx shall not be used
-* in advertising or otherwise to promote the sale, use or other dealings in
-* this Software without prior written authorization from Xilinx.
-*
-******************************************************************************/
-/****************************************************************************/
-/**
-*
-* @file xil_exception.c
-*
-* This file contains low-level driver functions for the Cortex A53,A9,R5 exception
-* Handler.
-*
-* <pre>
-* MODIFICATION HISTORY:
-*
-* Ver Who Date Changes
-* ----- -------- -------- -----------------------------------------------
-* 5.2 pkp 28/05/15 First release
-* 6.0 mus 27/07/16 Consolidated exceptions for a53,a9 and r5
-* processors and added Xil_UndefinedExceptionHandler
-* for a53 32 bit and r5 as well.
-* </pre>
-*
-*****************************************************************************/
-
-/***************************** Include Files ********************************/
-
-#include "xil_types.h"
-#include "xil_assert.h"
-#include "xil_exception.h"
-#include "xpseudo_asm.h"
-#include "xdebug.h"
-/************************** Constant Definitions ****************************/
-
-/**************************** Type Definitions ******************************/
-
-typedef struct {
- Xil_ExceptionHandler Handler;
- void *Data;
-} XExc_VectorTableEntry;
-
-/***************** Macros (Inline Functions) Definitions ********************/
-
-/************************** Function Prototypes *****************************/
-static void Xil_ExceptionNullHandler(void *Data);
-/************************** Variable Definitions *****************************/
-/*
- * Exception vector table to store handlers for each exception vector.
- */
-#if defined (__aarch64__)
-XExc_VectorTableEntry XExc_VectorTable[XIL_EXCEPTION_ID_LAST + 1] =
-{
- {Xil_ExceptionNullHandler, NULL},
- {Xil_SyncAbortHandler, NULL},
- {Xil_ExceptionNullHandler, NULL},
- {Xil_ExceptionNullHandler, NULL},
- {Xil_SErrorAbortHandler, NULL},
-
-};
-#else
-XExc_VectorTableEntry XExc_VectorTable[XIL_EXCEPTION_ID_LAST + 1] =
-{
- {Xil_ExceptionNullHandler, NULL},
- {Xil_UndefinedExceptionHandler, NULL},
- {Xil_ExceptionNullHandler, NULL},
- {Xil_PrefetchAbortHandler, NULL},
- {Xil_DataAbortHandler, NULL},
- {Xil_ExceptionNullHandler, NULL},
- {Xil_ExceptionNullHandler, NULL},
-};
-#endif
-#if !defined (__aarch64__)
-u32 DataAbortAddr; /* Address of instruction causing data abort */
-u32 PrefetchAbortAddr; /* Address of instruction causing prefetch abort */
-u32 UndefinedExceptionAddr; /* Address of instruction causing Undefined
- exception */
-#endif
-
-/*****************************************************************************/
-
-/****************************************************************************/
-/**
-*
-* This function is a stub Handler that is the default Handler that gets called
-* if the application has not setup a Handler for a specific exception. The
-* function interface has to match the interface specified for a Handler even
-* though none of the arguments are used.
-*
-* @param Data is unused by this function.
-*
-* @return None.
-*
-* @note None.
-*
-*****************************************************************************/
-static void Xil_ExceptionNullHandler(void *Data)
-{
- (void *)Data;
-DieLoop: goto DieLoop;
-}
-
-/****************************************************************************/
-/**
-* The function is a common API used to initialize exception handlers across all
-* processors supported. For ARM CortexA53,R5,A9, the exception handlers are being
-* initialized statically and hence this function does not do anything.
-* However, it is still present to avoid any compilation issues in case an
-* application uses this API and also to take care of backward compatibility
-* issues (in earlier versions of BSPs, this API was being used to initialize
-* exception handlers).
-*
-* @param None.
-*
-* @return None.
-*
-* @note None.
-*
-*****************************************************************************/
-void Xil_ExceptionInit(void)
-{
- return;
-}
-
-/*****************************************************************************/
-/**
-*
-* Makes the connection between the Id of the exception source and the
-* associated Handler that is to run when the exception is recognized. The
-* argument provided in this call as the Data is used as the argument
-* for the Handler when it is called.
-*
-* @param exception_id contains the ID of the exception source and should
-* be in the range of 0 to XIL_EXCEPTION_ID_LAST.
- See xil_exception_l.h for further information.
-* @param Handler to the Handler for that exception.
-* @param Data is a reference to Data that will be passed to the
-* Handler when it gets called.
-*
-* @return None.
-*
-* @note None.
-*
-****************************************************************************/
-void Xil_ExceptionRegisterHandler(u32 Exception_id,
- Xil_ExceptionHandler Handler,
- void *Data)
-{
- XExc_VectorTable[Exception_id].Handler = Handler;
- XExc_VectorTable[Exception_id].Data = Data;
-}
-
-/*****************************************************************************/
-/**
-*
-* Removes the Handler for a specific exception Id. The stub Handler is then
-* registered for this exception Id.
-*
-* @param exception_id contains the ID of the exception source and should
-* be in the range of 0 to XIL_EXCEPTION_ID_LAST.
-* See xil_exception_l.h for further information.
-
-* @return None.
-*
-* @note None.
-*
-****************************************************************************/
-void Xil_ExceptionRemoveHandler(u32 Exception_id)
-{
- Xil_ExceptionRegisterHandler(Exception_id,
- Xil_ExceptionNullHandler,
- NULL);
-}
-
-#if defined (__aarch64__)
-/*****************************************************************************/
-/**
-*
-* Default Synchronous abort handler which prints a debug message on console if
-* Debug flag is enabled
-*
-* @param None
-*
-* @return None.
-*
-* @note None.
-*
-****************************************************************************/
-
-void Xil_SyncAbortHandler(void *CallBackRef){
- xdbg_printf(XDBG_DEBUG_ERROR, "Synchronous abort \n");
- while(1) {
- ;
- }
-}
-
-/*****************************************************************************/
-/**
-*
-* Default SError abort handler which prints a debug message on console if
-* Debug flag is enabled
-*
-* @param None
-*
-* @return None.
-*
-* @note None.
-*
-****************************************************************************/
-void Xil_SErrorAbortHandler(void *CallBackRef){
- xdbg_printf(XDBG_DEBUG_ERROR, "Synchronous abort \n");
- while(1) {
- ;
- }
-}
-#else
-/*****************************************************************************/
-/**
-*
-* Default Data abort handler which prints data fault status register through
-* which information about data fault can be acquired
-*
-* @param None
-*
-* @return None.
-*
-* @note None.
-*
-****************************************************************************/
-
-void Xil_DataAbortHandler(void *CallBackRef){
-#ifdef DEBUG
- u32 FaultStatus;
-
- xdbg_printf(XDBG_DEBUG_ERROR, "Data abort \n");
- #ifdef __GNUC__
- FaultStatus = mfcp(XREG_CP15_DATA_FAULT_STATUS);
- #elif defined (__ICCARM__)
- mfcp(XREG_CP15_DATA_FAULT_STATUS,FaultStatus);
- #else
- { volatile register u32 Reg __asm(XREG_CP15_DATA_FAULT_STATUS);
- FaultStatus = Reg; }
- #endif
- xdbg_printf(XDBG_DEBUG_GENERAL, "Data abort with Data Fault Status Register %x\n",FaultStatus);
- xdbg_printf(XDBG_DEBUG_GENERAL, "Address of Instrcution causing Data abort %x\n",DataAbortAddr);
-#endif
- while(1) {
- ;
- }
-}
-
-/*****************************************************************************/
-/**
-*
-* Default Prefetch abort handler which prints prefetch fault status register through
-* which information about instruction prefetch fault can be acquired
-*
-* @param None
-*
-* @return None.
-*
-* @note None.
-*
-****************************************************************************/
-void Xil_PrefetchAbortHandler(void *CallBackRef){
-#ifdef DEBUG
- u32 FaultStatus;
-
- xdbg_printf(XDBG_DEBUG_ERROR, "Prefetch abort \n");
- #ifdef __GNUC__
- FaultStatus = mfcp(XREG_CP15_INST_FAULT_STATUS);
- #elif defined (__ICCARM__)
- mfcp(XREG_CP15_INST_FAULT_STATUS,FaultStatus);
- #else
- { volatile register u32 Reg __asm(XREG_CP15_INST_FAULT_STATUS);
- FaultStatus = Reg; }
- #endif
- xdbg_printf(XDBG_DEBUG_GENERAL, "Prefetch abort with Instruction Fault Status Register %x\n",FaultStatus);
- xdbg_printf(XDBG_DEBUG_GENERAL, "Address of Instrcution causing Prefetch abort %x\n",PrefetchAbortAddr);
-#endif
- while(1) {
- ;
- }
-}
-/*****************************************************************************/
-/**
-*
-* Default undefined exception handler which prints address of the undefined
-* instruction if debug prints are enabled
-*
-* @param None
-*
-* @return None.
-*
-* @note None.
-*
-****************************************************************************/
-void Xil_UndefinedExceptionHandler(void *CallBackRef){
-
- xdbg_printf(XDBG_DEBUG_GENERAL, "Address of the undefined instruction %x\n",UndefinedExceptionAddr);
- while(1) {
- ;
- }
-}
-#endif
projects / freertos / blobdiff