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Make soft wdt reset more obvious

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This commit is contained in:
Ivan Grokhotkov
2015-09-19 22:31:23 +03:00
parent 5e3fb60390
commit abfcc1da22
1 changed files with 14 additions and 11 deletions
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25
cores/esp8266/core_esp8266_postmortem.c
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@ -1,8 +1,8 @@
/* /*
postmortem.c - output of debug info on sketch crash postmortem.c - output of debug info on sketch crash
Copyright (c) 2015 Ivan Grokhotkov. All rights reserved. Copyright (c) 2015 Ivan Grokhotkov. All rights reserved.
This file is part of the esp8266 core for Arduino environment. This file is part of the esp8266 core for Arduino environment.
This library is free software; you can redistribute it and/or This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either License as published by the Free Software Foundation; either
@ -42,9 +42,9 @@ void __wrap_system_restart_local() {
struct rst_info rst_info = {0}; struct rst_info rst_info = {0};
system_rtc_mem_read(0, &rst_info, sizeof(rst_info)); system_rtc_mem_read(0, &rst_info, sizeof(rst_info));
if (rst_info.reason != REASON_SOFT_WDT_RST && if (rst_info.reason != REASON_SOFT_WDT_RST &&
rst_info.reason != REASON_EXCEPTION_RST && rst_info.reason != REASON_EXCEPTION_RST &&
rst_info.reason != REASON_WDT_RST) rst_info.reason != REASON_WDT_RST)
{ {
return; return;
} }
@ -52,15 +52,18 @@ void __wrap_system_restart_local() {
ets_install_putc1(&uart_write_char_d); ets_install_putc1(&uart_write_char_d);
if (rst_info.reason == REASON_EXCEPTION_RST) { if (rst_info.reason == REASON_EXCEPTION_RST) {
ets_printf("\nException (%d):\nepc1=0x%08x epc2=0x%08x epc3=0x%08x excvaddr=0x%08x depc=0x%08x\n", ets_printf("\nException (%d):\nepc1=0x%08x epc2=0x%08x epc3=0x%08x excvaddr=0x%08x depc=0x%08x\n",
rst_info.exccause, rst_info.epc1, rst_info.epc2, rst_info.epc3, rst_info.excvaddr, rst_info.depc); rst_info.exccause, rst_info.epc1, rst_info.epc2, rst_info.epc3, rst_info.excvaddr, rst_info.depc);
} }
else if (rst_info.reason == REASON_SOFT_WDT_RST) {
ets_printf("\nSoft WDT reset\n");
}
uint32_t cont_stack_start = (uint32_t) &(g_cont.stack); uint32_t cont_stack_start = (uint32_t) &(g_cont.stack);
uint32_t cont_stack_end = (uint32_t) g_cont.stack_end; uint32_t cont_stack_end = (uint32_t) g_cont.stack_end;
uint32_t stack_end; uint32_t stack_end;
// amount of stack taken by interrupt or exception handler // amount of stack taken by interrupt or exception handler
// and everything up to __wrap_system_restart_local // and everything up to __wrap_system_restart_local
// (determined empirically, might break) // (determined empirically, might break)
uint32_t offset = 0; uint32_t offset = 0;
@ -80,13 +83,13 @@ void __wrap_system_restart_local() {
} }
else { else {
ets_printf("\nctx: sys \n"); ets_printf("\nctx: sys \n");
stack_end = 0x3fffffb0; stack_end = 0x3fffffb0;
// it's actually 0x3ffffff0, but the stuff below ets_run // it's actually 0x3ffffff0, but the stuff below ets_run
// is likely not really relevant to the crash // is likely not really relevant to the crash
} }
ets_printf("sp: %08x end: %08x offset: %04x\n", sp, stack_end, offset); ets_printf("sp: %08x end: %08x offset: %04x\n", sp, stack_end, offset);
// print_pcs(sp + offset, stack_end); // print_pcs(sp + offset, stack_end);
print_stack(sp + offset, stack_end); print_stack(sp + offset, stack_end);
delayMicroseconds(10000); delayMicroseconds(10000);
@ -102,7 +105,7 @@ static void print_stack(uint32_t start, uint32_t end) {
// rough indicator: stack frames usually have SP saved as the second word // rough indicator: stack frames usually have SP saved as the second word
bool looksLikeStackFrame = (values[2] == pos + 0x10); bool looksLikeStackFrame = (values[2] == pos + 0x10);
ets_printf("%08x: %08x %08x %08x %08x %c\n", ets_printf("%08x: %08x %08x %08x %08x %c\n",
pos, values[0], values[1], values[2], values[3], (looksLikeStackFrame)?'<':' '); pos, values[0], values[1], values[2], values[3], (looksLikeStackFrame)?'<':' ');
} }
ets_printf("<<<stack<<<\n"); ets_printf("<<<stack<<<\n");