mirror of
https://github.com/RIOT-OS/RIOT.git
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ec24ea49b1
riotboot looks for valid, available slots and compares its version. The slot with the highest version is booted, otherwise if no valid slot is found it loops on `while(1);`
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/*
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* Copyright (C) 2017 Kaspar Schleiser <kaspar@schleiser.de>
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* Inria
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @defgroup bootloaders RIOT compatible bootloaders
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* @ingroup bootloaders
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* @{
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*
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* @file
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* @brief Minimal riot-based bootloader
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*
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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* @author Francisco Acosta <francisco.acosta@inria.fr>
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*
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* @}
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*/
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#include "cpu.h"
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#include "panic.h"
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#include "riotboot/slot.h"
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void kernel_init(void)
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{
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uint32_t version = 0;
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int slot = -1;
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for (unsigned i = 0; i < riotboot_slot_numof; i++) {
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const riotboot_hdr_t *riot_hdr = riotboot_slot_get_hdr(i);
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if (riotboot_slot_validate(i)) {
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/* skip slot if metadata broken */
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continue;
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}
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if (riot_hdr->start_addr != riotboot_slot_get_image_startaddr(i)) {
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continue;
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}
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if (slot == -1 || riot_hdr->version > version) {
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version = riot_hdr->version;
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slot = i;
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}
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}
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if (slot != -1) {
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riotboot_slot_jump(slot);
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}
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/* serious trouble! nothing to boot */
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while (1) {}
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}
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NORETURN void core_panic(core_panic_t crash_code, const char *message)
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{
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(void)crash_code;
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(void)message;
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while (1) {}
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}
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