/*
DEBUG MODULE
Copyright (C) 2016-2017 by Xose Pérez <xose dot perez at gmail dot com>
*/
#if DEBUG_SUPPORT
#include <stdio.h>
#include <stdarg.h>
extern "C" {
#include "user_interface.h"
}
#if DEBUG_UDP_SUPPORT
#include <WiFiUdp.h>
WiFiUDP udpDebug;
#endif
void debugSend(const char * format, ...) {
va_list args;
va_start(args, format);
char test[1];
int len = ets_vsnprintf(test, 1, format, args) + 1;
char * buffer = new char[len];
ets_vsnprintf(buffer, len, format, args);
va_end(args);
#if DEBUG_SERIAL_SUPPORT
DEBUG_PORT.printf(buffer);
#endif
#if DEBUG_UDP_SUPPORT
#if SYSTEM_CHECK_ENABLED
if (systemCheck()) {
#endif
udpDebug.beginPacket(DEBUG_UDP_IP, DEBUG_UDP_PORT);
udpDebug.write(buffer);
udpDebug.endPacket();
delay(1);
#if SYSTEM_CHECK_ENABLED
}
#endif
#endif
#if DEBUG_TELNET_SUPPORT
_telnetWrite(buffer, strlen(buffer));
#endif
free(buffer);
}
void debugSend_P(PGM_P format, ...) {
char f[DEBUG_FORMAT_MAX_LENGTH+1];
memcpy_P(f, format, DEBUG_FORMAT_MAX_LENGTH);
va_list args;
va_start(args, format);
char test[1];
int len = ets_vsnprintf(test, 1, f, args) + 1;
char * buffer = new char[len];
ets_vsnprintf(buffer, len, f, args);
va_end(args);
#if DEBUG_SERIAL_SUPPORT
DEBUG_PORT.printf(buffer);
#endif
#if DEBUG_UDP_SUPPORT
#if SYSTEM_CHECK_ENABLED
if (systemCheck()) {
#endif
udpDebug.beginPacket(DEBUG_UDP_IP, DEBUG_UDP_PORT);
udpDebug.write(buffer);
udpDebug.endPacket();
delay(1);
#if SYSTEM_CHECK_ENABLED
}
#endif
#endif
#if DEBUG_TELNET_SUPPORT
_telnetWrite(buffer, strlen(buffer));
#endif
free(buffer);
}
// -----------------------------------------------------------------------------
// Save crash info
// Taken from krzychb EspSaveCrash
// https://github.com/krzychb/EspSaveCrash
// -----------------------------------------------------------------------------
#define SAVE_CRASH_EEPROM_OFFSET 0x0100 // initial address for crash data
/**
* Structure of the single crash data set
*
* 1. Crash time
* 2. Restart reason
* 3. Exception cause
* 4. epc1
* 5. epc2
* 6. epc3
* 7. excvaddr
* 8. depc
* 9. adress of stack start
* 10. adress of stack end
* 11. stack trace bytes
* ...
*/
#define SAVE_CRASH_CRASH_TIME 0x00 // 4 bytes
#define SAVE_CRASH_RESTART_REASON 0x04 // 1 byte
#define SAVE_CRASH_EXCEPTION_CAUSE 0x05 // 1 byte
#define SAVE_CRASH_EPC1 0x06 // 4 bytes
#define SAVE_CRASH_EPC2 0x0A // 4 bytes
#define SAVE_CRASH_EPC3 0x0E // 4 bytes
#define SAVE_CRASH_EXCVADDR 0x12 // 4 bytes
#define SAVE_CRASH_DEPC 0x16 // 4 bytes
#define SAVE_CRASH_STACK_START 0x1A // 4 bytes
#define SAVE_CRASH_STACK_END 0x1E // 4 bytes
#define SAVE_CRASH_STACK_TRACE 0x22 // variable
/**
* Save crash information in EEPROM
* This function is called automatically if ESP8266 suffers an exception
* It should be kept quick / consise to be able to execute before hardware wdt may kick in
*/
extern "C" void custom_crash_callback(struct rst_info * rst_info, uint32_t stack_start, uint32_t stack_end ) {
// This method assumes EEPROM has already been initialized
// which is the first thing ESPurna does
// write crash time to EEPROM
uint32_t crash_time = millis();
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_CRASH_TIME, crash_time);
// write reset info to EEPROM
EEPROM.write(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_RESTART_REASON, rst_info->reason);
EEPROM.write(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EXCEPTION_CAUSE, rst_info->exccause);
// write epc1, epc2, epc3, excvaddr and depc to EEPROM
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC1, rst_info->epc1);
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC2, rst_info->epc2);
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC3, rst_info->epc3);
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EXCVADDR, rst_info->excvaddr);
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_DEPC, rst_info->depc);
// write stack start and end address to EEPROM
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_START, stack_start);
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_END, stack_end);
// write stack trace to EEPROM
int16_t current_address = SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_TRACE;
for (uint32_t i = stack_start; i < stack_end; i++) {
byte* byteValue = (byte*) i;
EEPROM.write(current_address++, *byteValue);
}
EEPROM.commit();
}
/**
* Clears crash info
*/
void debugClearCrashInfo() {
uint32_t crash_time = 0xFFFFFFFF;
EEPROM.put(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_CRASH_TIME, crash_time);
EEPROM.commit();
}
/**
* Print out crash information that has been previusly saved in EEPROM
*/
void debugDumpCrashInfo() {
uint32_t crash_time;
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_CRASH_TIME, crash_time);
if ((crash_time == 0) || (crash_time == 0xFFFFFFFF)) {
DEBUG_MSG_P(PSTR("[DEBUG] No crash info\n"));
return;
}
DEBUG_MSG_P(PSTR("[DEBUG] Crash at %ld ms\n"), crash_time);
DEBUG_MSG_P(PSTR("[DEBUG] Reason of restart: %d\n"), EEPROM.read(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_RESTART_REASON));
DEBUG_MSG_P(PSTR("[DEBUG] Exception cause: %d\n"), EEPROM.read(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EXCEPTION_CAUSE));
uint32_t epc1, epc2, epc3, excvaddr, depc;
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC1, epc1);
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC2, epc2);
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EPC3, epc3);
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_EXCVADDR, excvaddr);
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_DEPC, depc);
DEBUG_MSG_P(PSTR("[DEBUG] epc1=0x%08x epc2=0x%08x epc3=0x%08x\n"), epc1, epc2, epc3);
DEBUG_MSG_P(PSTR("[DEBUG] excvaddr=0x%08x depc=0x%08x\n"), excvaddr, depc);
uint32_t stack_start, stack_end;
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_START, stack_start);
EEPROM.get(SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_END, stack_end);
DEBUG_MSG_P(PSTR("[DEBUG] >>>stack>>>\n[DEBUG] "));
int16_t current_address = SAVE_CRASH_EEPROM_OFFSET + SAVE_CRASH_STACK_TRACE;
int16_t stack_len = stack_end - stack_start;
uint32_t stack_trace;
for (int16_t i = 0; i < stack_len; i += 0x10) {
DEBUG_MSG_P(PSTR("%08x: "), stack_start + i);
for (byte j = 0; j < 4; j++) {
EEPROM.get(current_address, stack_trace);
DEBUG_MSG_P(PSTR("%08x "), stack_trace);
current_address += 4;
}
DEBUG_MSG_P(PSTR("\n[DEBUG] "));
}
DEBUG_MSG_P(PSTR("<<<stack<<<\n"));
}
#endif // DEBUG_SUPPORT