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109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
/*
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* Copyright (C) 2015 INRIA
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* Copyright (C) 2015 Eistec AB
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* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License v2.1. See the file LICENSE in the top level directory for more
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* details.
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*/
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/**
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* @ingroup core_util
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* @{
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*
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* @file
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* @brief Crash handling functions
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*
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* @author Kévin Roussel <Kevin.Roussel@inria.fr>
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* @author Oliver Hahm <oliver.hahm@inria.fr>
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* @author Joakim Nohlgård <joakim.nohlgard@eistec.se>
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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*/
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#include <string.h>
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#include <stdio.h>
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#include "assert.h"
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#include "kernel_defines.h"
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#include "cpu.h"
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#include "irq.h"
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#include "panic.h"
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#include "periph/pm.h"
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#include "log.h"
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#if defined(DEVELHELP) && defined(MODULE_PS)
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#include "ps.h"
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#endif
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/* If a device is flashed over USB bootloader, try to launch
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* the bootloader again on crash so the user can re-flash it.
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*/
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#if defined(DEVELHELP) && defined(MODULE_USB_BOARD_RESET)
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#include "usb_board_reset.h"
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#endif
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const char assert_crash_message[] = "FAILED ASSERTION.";
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/* flag preventing "recursive crash printing loop" */
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static int crashed = 0;
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void __attribute__((weak)) panic_arch(void)
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{}
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void __attribute__((weak)) panic_app(core_panic_t crash_code,
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const char *message)
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{
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(void)crash_code;
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(void)message;
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}
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/* WARNING: this function NEVER returns! */
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NORETURN void core_panic(core_panic_t crash_code, const char *message)
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{
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#ifdef NDEBUG
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(void)crash_code;
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#endif
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if (crashed == 0) {
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/* print panic message to console (if possible) */
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crashed = 1;
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#ifndef NDEBUG
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if (crash_code == PANIC_ASSERT_FAIL) {
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cpu_print_last_instruction();
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}
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#endif
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/* Call back app in case it wants to store some context */
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panic_app(crash_code, message);
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LOG_ERROR("*** RIOT kernel panic:\n%s\n\n", message);
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#ifdef DEVELHELP
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#ifdef MODULE_PS
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ps();
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LOG_ERROR("\n");
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#endif
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LOG_ERROR("*** halted.\n\n");
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#else
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LOG_ERROR("*** rebooting...\n\n");
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#endif
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}
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/* disable watchdog and all possible sources of interrupts */
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irq_disable();
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panic_arch();
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#ifndef DEVELHELP
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/* DEVELHELP not set => reboot system */
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pm_reboot();
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#else
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/* DEVELHELP set => power off system */
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/* or start bootloader */
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#ifdef MODULE_USB_BOARD_RESET
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usb_board_reset_in_bootloader();
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#else
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pm_off();
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#endif
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#endif /* DEVELHELP */
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/* tell the compiler that we won't return from this function
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(even if we actually won't even get here...) */
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UNREACHABLE();
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}
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