mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-08-17 13:29:10 +00:00
398 lines
12 KiB
C
398 lines
12 KiB
C
/*
|
|
* Copyright (c) 2015 NXP B.V.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of NXP B.V. nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY NXP B.V. AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL NXP B.V. OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* This file is part of the Contiki operating system.
|
|
*
|
|
* Author: Thomas Haydon
|
|
* Integrated into Contiki by Beshr Al Nahas
|
|
*
|
|
*/
|
|
|
|
#include <jendefs.h>
|
|
#include <AppHardwareApi.h>
|
|
#include <MicroInt.h>
|
|
#include "exceptions.h"
|
|
|
|
#ifndef EXCEPTION_STALLS_SYSTEM
|
|
#define EXCEPTION_STALLS_SYSTEM 0
|
|
#endif /* EXCEPTION_STALLS_SYSTEM */
|
|
|
|
#ifndef PRINT_STACK_ON_REBOOT
|
|
#define PRINT_STACK_ON_REBOOT 1
|
|
#endif /* PRINT_STACK_ON_REBOOT */
|
|
|
|
/** Define to dump the stack on exception */
|
|
#ifndef EXC_DUMP_STACK
|
|
#define EXC_DUMP_STACK
|
|
#endif /* EXC_DUMP_STACK */
|
|
|
|
/** Define to dump registers on exception */
|
|
#ifndef EXC_DUMP_REGS
|
|
/* #define EXC_DUMP_REGS */
|
|
#endif /* EXC_DUMP_REGS */
|
|
|
|
/* Select whether exception vectors should be in RAM or Flash based on chip family */
|
|
#if (defined JENNIC_CHIP_FAMILY_JN514x)
|
|
#define EXCEPTION_VECTORS_LOCATION_RAM
|
|
#elif (defined JENNIC_CHIP_FAMILY_JN516x)
|
|
#define EXCEPTION_VECTORS_LOCATION_FLASH
|
|
#else
|
|
#error Unsupported chip family selected
|
|
#endif /* JENNIC_CHIP_FAMILY */
|
|
|
|
#if (defined EXCEPTION_VECTORS_LOCATION_RAM)
|
|
/* RAM exception vectors are set up at run time */
|
|
/* Addresses of exception vectors in RAM */
|
|
#define BUS_ERROR *((volatile uint32 *)(0x4000000))
|
|
#define TICK_TIMER *((volatile uint32 *)(0x4000004))
|
|
#define UNALIGNED_ACCESS *((volatile uint32 *)(0x4000008))
|
|
#define ILLEGAL_INSTRUCTION *((volatile uint32 *)(0x400000c))
|
|
#define EXTERNAL_INTERRUPT *((volatile uint32 *)(0x4000010))
|
|
#define SYSCALL *((volatile uint32 *)(0x4000014))
|
|
#define TRAP *((volatile uint32 *)(0x4000018))
|
|
#define GENERIC *((volatile uint32 *)(0x400001c))
|
|
#define STACK_OVERFLOW *((volatile uint32 *)(0x4000020))
|
|
#elif (defined EXCEPTION_VECTORS_LOCATION_FLASH)
|
|
/* Flash exception vectors are set up at compile time */
|
|
#else
|
|
#error Unknown exception vector location
|
|
#endif /* EXCEPTION_VECTORS_LOCATION */
|
|
|
|
/* Locations in stack trace of important information */
|
|
#define STACK_REG 1
|
|
#define PROGRAM_COUNTER 18
|
|
#define EFFECTIVE_ADDR 19
|
|
|
|
/* Number of registers */
|
|
#define REG_COUNT 16
|
|
|
|
/* Chip dependant RAM size */
|
|
#if defined(JENNIC_CHIP_JN5148) || defined(JENNIC_CHIP_JN5148J01)
|
|
#define EXCEPTION_RAM_TOP 0x04020000
|
|
#else
|
|
#define EXCEPTION_RAM_TOP 0x04008000
|
|
#endif
|
|
|
|
static void exception_handler(uint32 *pu32Stack, eExceptionType eType);
|
|
static void *heap_alloc_overflow_protect(void *pvPointer, uint32 u32Size, bool_t bClear);
|
|
/*---------------------------------------------------------------------------*/
|
|
#if PRINT_STACK_ON_REBOOT
|
|
static void hexprint(uint8 v);
|
|
static void hexprint32(uint32 v);
|
|
static void printstring(const char *s);
|
|
#endif /* PRINT_STACK_ON_REBOOT */
|
|
|
|
/* For debugging */
|
|
static const char *debug_filename = "nothing";
|
|
static int debug_line = -1;
|
|
|
|
void
|
|
debug_file_line(const char *file, int line)
|
|
{
|
|
debug_filename = file;
|
|
debug_line = line;
|
|
}
|
|
extern uint32 heap_location;
|
|
extern void *(*prHeap_AllocFunc)(void *, uint32, bool_t);
|
|
PRIVATE void *(*prHeap_AllocOrig)(void *, uint32, bool_t);
|
|
|
|
/* Symbol defined by the linker script */
|
|
/* marks the end of the stack */
|
|
extern void *stack_low_water_mark;
|
|
|
|
/****************************************************************************/
|
|
/*** Local Functions ***/
|
|
/****************************************************************************/
|
|
/*---------------------------------------------------------------------------*/
|
|
#if PRINT_STACK_ON_REBOOT
|
|
#include "dev/uart0.h"
|
|
#define printchar(X) uart0_write_direct(X)
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
hexprint(uint8 v)
|
|
{
|
|
const char hexconv[] = "0123456789abcdef";
|
|
printchar(hexconv[v >> 4]);
|
|
printchar(hexconv[v & 0x0f]);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
hexprint32(uint32 v)
|
|
{
|
|
hexprint(((uint32)v) >> (uint32)24);
|
|
hexprint(((uint32)v) >> (uint32)16);
|
|
hexprint(((uint32)v) >> (uint32)8);
|
|
hexprint((v) & 0xff);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
printstring(const char *s)
|
|
{
|
|
while(*s) {
|
|
printchar(*s++);
|
|
}
|
|
}
|
|
#endif /* PRINT_STACK_ON_REBOOT */
|
|
|
|
/****************************************************************************
|
|
*
|
|
* NAME: vEXC_Register
|
|
*
|
|
* DESCRIPTION:
|
|
* Set up exceptions. When in RAM, overwrite the default vectors with ours.
|
|
* We also patch the heap allocation function so that we can keep tabs on
|
|
* the amount of free heap.
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURNS:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
PUBLIC void
|
|
vEXC_Register(void)
|
|
{
|
|
#ifdef EXCEPTION_VECTORS_LOCATION_RAM
|
|
/* Overwrite exception vectors, pointing them all at the generic handler */
|
|
BUS_ERROR = (uint32)exception_handler;
|
|
UNALIGNED_ACCESS = (uint32)exception_handler;
|
|
ILLEGAL_INSTRUCTION = (uint32)exception_handler;
|
|
SYSCALL = (uint32)exception_handler;
|
|
TRAP = (uint32)exception_handler;
|
|
GENERIC = (uint32)exception_handler;
|
|
STACK_OVERFLOW = (uint32)exception_handler;
|
|
#endif /* EXCEPTION_VECTORS_LOCATION */
|
|
|
|
prHeap_AllocOrig = prHeap_AllocFunc;
|
|
prHeap_AllocFunc = heap_alloc_overflow_protect;
|
|
}
|
|
#ifdef EXCEPTION_VECTORS_LOCATION_FLASH
|
|
/* If exception vectors are in flash, define the handler functions here to be linked in */
|
|
/* These function names are defined in the 6x linker script for the various exceptions */
|
|
/* Point them all at the generic handler */
|
|
PUBLIC void
|
|
vException_BusError(uint32 *pu32Stack, eExceptionType eType)
|
|
{
|
|
exception_handler(pu32Stack, eType);
|
|
}
|
|
PUBLIC void
|
|
vException_UnalignedAccess(uint32 *pu32Stack, eExceptionType eType)
|
|
{
|
|
exception_handler(pu32Stack, eType);
|
|
}
|
|
PUBLIC void
|
|
vException_IllegalInstruction(uint32 *pu32Stack, eExceptionType eType)
|
|
{
|
|
exception_handler(pu32Stack, eType);
|
|
}
|
|
PUBLIC void
|
|
vException_SysCall(uint32 *pu32Stack, eExceptionType eType)
|
|
{
|
|
exception_handler(pu32Stack, eType);
|
|
}
|
|
PUBLIC void
|
|
vException_Trap(uint32 *pu32Stack, eExceptionType eType)
|
|
{
|
|
exception_handler(pu32Stack, eType);
|
|
}
|
|
PUBLIC void
|
|
vException_StackOverflow(uint32 *pu32Stack, eExceptionType eType)
|
|
{
|
|
exception_handler(pu32Stack, eType);
|
|
}
|
|
#endif /* EXCEPTION_VECTORS_LOCATION_FLASH */
|
|
|
|
/****************************************************************************
|
|
*
|
|
* NAME: exception_handler
|
|
*
|
|
* DESCRIPTION:
|
|
* Generic exception handler which is called whether the vectors are in RAM or flash
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURNS:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
static void
|
|
exception_handler(uint32 *pu32Stack, eExceptionType eType)
|
|
{
|
|
#if (defined EXC_DUMP_STACK) || (defined EXC_DUMP_REGS)
|
|
int i;
|
|
#endif
|
|
uint32 u32EPCR, u32EEAR, u32Stack;
|
|
char *pcString;
|
|
|
|
MICRO_DISABLE_INTERRUPTS();
|
|
|
|
switch(eType) {
|
|
case E_EXC_BUS_ERROR:
|
|
pcString = "BUS";
|
|
break;
|
|
|
|
case E_EXC_UNALIGNED_ACCESS:
|
|
pcString = "ALIGN";
|
|
break;
|
|
|
|
case E_EXC_ILLEGAL_INSTRUCTION:
|
|
pcString = "ILLEGAL";
|
|
break;
|
|
|
|
case E_EXC_SYSCALL:
|
|
pcString = "SYSCALL";
|
|
break;
|
|
|
|
case E_EXC_TRAP:
|
|
pcString = "TRAP";
|
|
break;
|
|
|
|
case E_EXC_GENERIC:
|
|
pcString = "GENERIC";
|
|
break;
|
|
|
|
case E_EXC_STACK_OVERFLOW:
|
|
pcString = "STACK";
|
|
break;
|
|
|
|
default:
|
|
pcString = "UNKNOWN";
|
|
break;
|
|
}
|
|
|
|
if(bAHI_WatchdogResetEvent()) {
|
|
pcString = "WATCHDOG";
|
|
}
|
|
vAHI_WatchdogStop();
|
|
|
|
/* Pull the EPCR and EEAR values from where they've been saved by the ROM exception handler */
|
|
u32EPCR = pu32Stack[PROGRAM_COUNTER];
|
|
u32EEAR = pu32Stack[EFFECTIVE_ADDR];
|
|
u32Stack = pu32Stack[STACK_REG];
|
|
|
|
/* Log the exception */
|
|
printstring("\n\n\n");
|
|
printstring(pcString);
|
|
printstring(" EXCEPTION @ $");
|
|
hexprint32(u32EPCR);
|
|
printstring(" EA: ");
|
|
hexprint32(u32EEAR);
|
|
printstring(" SK: ");
|
|
hexprint32(u32Stack);
|
|
printstring(" HP: ");
|
|
hexprint32(((uint32 *)&heap_location)[0]);
|
|
printstring("\n");
|
|
printstring(" File: ");
|
|
printstring(debug_filename);
|
|
printstring(" Line: ");
|
|
hexprint32(debug_line);
|
|
printstring("\n");
|
|
|
|
#ifdef EXC_DUMP_REGS
|
|
printstring("\nREGS: ");
|
|
/* Pull and print the registers from saved locations */
|
|
for(i = 0; i < REG_COUNT; i += 4) {
|
|
printstring("R");
|
|
hexprint(i);
|
|
printstring("-");
|
|
hexprint(i + 3);
|
|
printstring(": ");
|
|
hexprint(pu32Stack[i]);
|
|
printstring(" ");
|
|
hexprint32(pu32Stack[i + 1]);
|
|
printstring(" ");
|
|
hexprint32(pu32Stack[i + 2]);
|
|
printstring(" ");
|
|
hexprint32(pu32Stack[i + 3]);
|
|
printstring("\n");
|
|
}
|
|
#endif
|
|
|
|
#ifdef EXC_DUMP_STACK
|
|
/* Print the stack */
|
|
printstring("\nRAM top: ");
|
|
hexprint32(EXCEPTION_RAM_TOP);
|
|
printstring("\nSTACK: \n");
|
|
pu32Stack = (uint32 *)(u32Stack & 0xFFFFFFF0);
|
|
for(i = 0; (pu32Stack + i) < (uint32 *)(EXCEPTION_RAM_TOP); i += 4) {
|
|
printstring("@");
|
|
hexprint32((uint32)(pu32Stack + i));
|
|
printstring(": ");
|
|
hexprint32(pu32Stack[i]);
|
|
printstring(" ");
|
|
hexprint32(pu32Stack[i + 1]);
|
|
printstring(" ");
|
|
hexprint32(pu32Stack[i + 2]);
|
|
printstring(" ");
|
|
hexprint32(pu32Stack[i + 3]);
|
|
printstring("\n");
|
|
}
|
|
#endif
|
|
|
|
#if EXCEPTION_STALLS_SYSTEM
|
|
while(1) {
|
|
}
|
|
#else /* EXCEPTION_STALLS_SYSTEM */
|
|
/* Software reset */
|
|
vAHI_WatchdogException(0);
|
|
vAHI_SwReset();
|
|
#endif /* EXCEPTION_STALLS_SYSTEM */
|
|
}
|
|
/****************************************************************************
|
|
*
|
|
* NAME: heap_alloc_overflow_protect
|
|
*
|
|
* DESCRIPTION:
|
|
* New heap allocation function that sets the stack overflow location to the new
|
|
* top address of the heap.
|
|
*
|
|
* PARAMETERS: Name RW Usage
|
|
* pvPointer W Location of allocated heap memory
|
|
* u32Size R Number of bytes to allocate
|
|
* bClear R Flag to set new memory to 0
|
|
*
|
|
* RETURNS:
|
|
* Pointer to new memory
|
|
*
|
|
****************************************************************************/
|
|
static void *
|
|
heap_alloc_overflow_protect(void *pvPointer, uint32 u32Size, bool_t bClear)
|
|
{
|
|
void *pvAlloc;
|
|
/* Call original heap allocation function */
|
|
pvAlloc = prHeap_AllocOrig(pvPointer, u32Size, bClear);
|
|
/*
|
|
* Initialise the stack overflow exception to trigger if the end of the
|
|
* stack is reached. See the linker command file to adjust the allocated
|
|
* stack size.
|
|
*/
|
|
/* Set stack overflow address */
|
|
vAHI_SetStackOverflow(TRUE, ((uint32 *)&heap_location)[0]);
|
|
return pvAlloc;
|
|
}
|