mirror of
https://github.com/apache/nuttx.git
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778f050102
Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
322 lines
9.5 KiB
C
322 lines
9.5 KiB
C
/****************************************************************************
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* arch/xtensa/src/common/xtensa_assert.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/irq.h>
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#include <nuttx/arch.h>
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#include <nuttx/board.h>
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#include <nuttx/syslog/syslog.h>
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#include <nuttx/usb/usbdev_trace.h>
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#include <arch/board/board.h>
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#include "sched/sched.h"
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#include "xtensa.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* USB trace dumping */
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#ifndef CONFIG_USBDEV_TRACE
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# undef CONFIG_ARCH_USBDUMP
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#endif
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#ifndef CONFIG_BOARD_RESET_ON_ASSERT
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# define CONFIG_BOARD_RESET_ON_ASSERT 0
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: assert_tracecallback
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****************************************************************************/
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#ifdef CONFIG_ARCH_USBDUMP
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static int usbtrace_syslog(FAR const char *fmt, ...)
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{
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va_list ap;
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/* Let vsyslog do the real work */
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va_start(ap, fmt);
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vsyslog(LOG_EMERG, fmt, ap);
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va_end(ap);
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return OK;
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}
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static int assert_tracecallback(FAR struct usbtrace_s *trace, FAR void *arg)
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{
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usbtrace_trprintf(usbtrace_syslog, trace->event, trace->value);
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return 0;
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}
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#endif
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/****************************************************************************
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* Name: xtensa_assert
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****************************************************************************/
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static void xtensa_assert(void)
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{
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/* Dump the processor state */
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xtensa_dumpstate();
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#ifdef CONFIG_ARCH_USBDUMP
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/* Dump USB trace data */
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usbtrace_enumerate(assert_tracecallback, NULL);
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#endif
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#ifdef CONFIG_BOARD_CRASHDUMP
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/* Perform board-specific crash dump */
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board_crashdump(xtensa_getsp(), running_task(), filename, lineno);
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#endif
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/* Flush any buffered SYSLOG data (from the above) */
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syslog_flush();
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/* Are we in an interrupt handler or the idle task? */
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if (CURRENT_REGS || running_task()->flink == NULL)
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{
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/* Blink the LEDs forever */
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up_irq_save();
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for (; ; )
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{
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#if CONFIG_BOARD_RESET_ON_ASSERT >= 1
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board_reset(CONFIG_BOARD_ASSERT_RESET_VALUE);
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#endif
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#ifdef CONFIG_ARCH_LEDS
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board_autoled_on(LED_PANIC);
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up_mdelay(250);
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board_autoled_off(LED_PANIC);
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up_mdelay(250);
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#endif
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}
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}
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else
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{
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/* Assertions in other contexts only cause the thread to exit */
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#if CONFIG_BOARD_RESET_ON_ASSERT >= 2
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board_reset(CONFIG_BOARD_ASSERT_RESET_VALUE);
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#endif
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}
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_assert
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****************************************************************************/
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void up_assert(const char *filename, int lineno)
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{
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#if CONFIG_TASK_NAME_SIZE > 0 && defined(CONFIG_DEBUG_ALERT)
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struct tcb_s *rtcb = running_task();
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#endif
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board_autoled_on(LED_ASSERTION);
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/* Flush any buffered SYSLOG data (from prior to the assertion) */
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syslog_flush();
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#if CONFIG_TASK_NAME_SIZE > 0
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_alert("Assertion failed at file:%s line: %d task: %s\n",
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filename, lineno, rtcb->name);
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#else
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_alert("Assertion failed at file:%s line: %d\n",
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filename, lineno);
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#endif
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xtensa_assert();
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}
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/****************************************************************************
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* Name: xtensa_panic
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*
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* Description:
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* PANIC if an unhandled exception is received:
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*
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* - NMI exception
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* - Debug exception
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* - Double exception
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* - Kernel exception
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* - Co-processor exception
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* - High priority level2-6 Exception.
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*
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* Input Parameters:
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* xcptcode - Identifies the unhandled exception (see include/esp32/irq.h)
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* regs - The register save are at the time of the interrupt.
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*
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* Returned Value:
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* Does not return
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*
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****************************************************************************/
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void xtensa_panic(int xptcode, uint32_t *regs)
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{
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#if CONFIG_TASK_NAME_SIZE > 0 && defined(CONFIG_DEBUG_ALERT)
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struct tcb_s *rtcb = running_task();
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#endif
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/* We get here when a un-dispatch-able, irrecoverable exception occurs */
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board_autoled_on(LED_ASSERTION);
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/* Flush any buffered SYSLOG data (from prior to the panic) */
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syslog_flush();
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#if CONFIG_TASK_NAME_SIZE > 0
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_alert("Unhandled Exception %d task: %s\n", xptcode, rtcb->name);
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#else
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_alert("Unhandled Exception %d\n", xptcode);
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#endif
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CURRENT_REGS = regs;
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xtensa_assert(); /* Should not return */
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for (; ; );
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}
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/****************************************************************************
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* Name: xtensa_user
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*
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* Description:
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* PANIC if certain User Exceptions are received. All values for EXCCAUSE
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* are listed below (not all generate PANICs):
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*
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* 0 IllegalInstructionCause
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* Illegal instruction
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* 1 SyscallCause
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* SYSCALL instruction
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* 2 InstructionFetchErrorCause
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* Processor internal physical address or data error during instruction
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* fetch.
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* 3 LoadStoreErrorCause
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* Processor internal physical address or data error during load or
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* store.
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* 4 Level1InterruptCause
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* Level-1 interrupt as indicated by set level-1 bits in the INTERRUPT
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* register.
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* 5 AllocaCause
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* MOVSP instruction, if caller’s registers are not in the register
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* file.
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* 6 IntegerDivideByZeroCause
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* QUOS, QUOU, REMS, or REMU divisor operand is zero.
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* 7 PCValueErrorCause Next PC Value Illegal
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* 8 PrivilegedCause
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* Attempt to execute a privileged operation when CRING != 0
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* 9 LoadStoreAlignmentCause
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* Load or store to an unaligned address.
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* 10..11 Reserved for Cadence
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* 12 InstrPIFDataErrorCause
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* PIF data error during instruction fetch.
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* 13 LoadStorePIFDataErrorCause
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* Synchronous PIF data error during LoadStore access.
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* 14 InstrPIFAddrErrorCause
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* PIF address error during instruction fetch.
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* 15 LoadStorePIFAddrErrorCause
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* Synchronous PIF address error during LoadStore access.
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* 16 InstTLBMissCause
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* Error during Instruction TLB refill
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* 17 InstTLBMultiHitCause
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* Multiple instruction TLB entries matched
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* 18 InstFetchPrivilegeCause
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* An instruction fetch referenced a virtual address at a ring leve
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* less than CRING.
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* 19 Reserved for Cadence
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* 20 InstFetchProhibitedCause
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* An instruction fetch referenced a page mapped with an attribute
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* that does not permit instruction fetch.
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* 21..23 Reserved for Cadence
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* 24 LoadStoreTLBMissCause
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* Error during TLB refill for a load or store.
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* 25 LoadStoreTLBMultiHitCause
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* Multiple TLB entries matched for a load or store.
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* 26 LoadStorePrivilegeCause
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* A load or store referenced a virtual address at a ring level less
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* than CRING.
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* 27 Reserved for Cadence
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* 28 LoadProhibitedCause
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* A load referenced a page mapped with an attribute that does not
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* permit loads.
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* 29 StoreProhibitedCause
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* A store referenced a page mapped with an attribute that does not
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* permit stores.
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* 30..31 Reserved for Cadence
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* 32..39 CoprocessornDisabled
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* Coprocessor n instruction when cpn disabled. n varies 0..7 as the
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* cause varies 32..39.
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* 40..63 Reserved
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*
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* Input Parameters:
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* exccause - Identifies the EXCCAUSE of the user exception
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* regs - The register save are at the time of the interrupt.
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*
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* Returned Value:
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* Does not return
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*
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****************************************************************************/
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void xtensa_user_panic(int exccause, uint32_t *regs)
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{
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#if CONFIG_TASK_NAME_SIZE > 0 && defined(CONFIG_DEBUG_ALERT)
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struct tcb_s *rtcb = running_task();
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#endif
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/* We get here when a un-dispatch-able, irrecoverable exception occurs */
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board_autoled_on(LED_ASSERTION);
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/* Flush any buffered SYSLOG data (from prior to the error) */
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syslog_flush();
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#if CONFIG_TASK_NAME_SIZE > 0
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_alert("User Exception: EXCCAUSE=%04x task: %s\n", exccause, rtcb->name);
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#else
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_alert("User Exception: EXCCAUSE=%04x\n", exccause);
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#endif
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CURRENT_REGS = regs;
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xtensa_assert(); /* Should not return */
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for (; ; );
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}
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