mirror of https://github.com/wolfSSL/wolfBoot.git
143 lines
3.6 KiB
C
143 lines
3.6 KiB
C
/* loader.c
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*
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* Copyright (C) 2025 wolfSSL Inc.
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*
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* This file is part of wolfBoot.
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*
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* wolfBoot is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* wolfBoot is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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/**
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* @file loader.c
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*
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* @brief Loader implementation for wolfBoot.
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*
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* This file contains the implementation of the loader for wolfBoot. It includes
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* functions to initialize the hardware, probe SPI flash,
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* initialize UART (if applicable), initialize TPM2 (if applicable), and
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* start the wolfBoot process.
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*/
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#include "loader.h"
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#include "image.h"
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#include "hal.h"
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#include "hooks.h"
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#include "spi_flash.h"
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#ifdef UART_FLASH
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#include "uart_flash.h"
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#endif
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#include "wolfboot/wolfboot.h"
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#ifdef WOLFBOOT_TPM
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#include "tpm.h"
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#endif
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#ifdef RAM_CODE
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/**
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* @brief Start address of the text section in RAM code.
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*/
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extern unsigned int _start_text;
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/**
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* @brief wolfBoot version number (used in RAM code).
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*/
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static volatile const uint32_t __attribute__((used)) wolfboot_version = WOLFBOOT_VERSION;
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/**
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* @brief RAM Interrupt Vector table.
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*/
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extern void (** const IV_RAM)(void);
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#endif
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#ifdef TARGET_sim
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/**
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* @brief Command line arguments for the test-app in sim mode.
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*/
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extern char **main_argv;
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/**
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* @brief Number of command line arguments for the test-app in sim mode.
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*/
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extern int main_argc;
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/**
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* @brief Main function in sim platform.
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*
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* This function is the entry point for the simulator platform. It forwards the
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* command line arguments to the test-app for testing purposes.
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*
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* @param argc Number of command line arguments.
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* @param argv Array of command line arguments.
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* @return The return code of the test-app.
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*/
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int main(int argc, char *argv[])
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#elif defined(WOLFBOOT_LOADER_MAIN)
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/**
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* @brief Main function for the wolfBoot loader.
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*
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* This function is the entry point for the wolfBoot loader. It initializes
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* the hardware, probes SPI flash, initializes UART (if applicable), initializes
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* TPM2 (if applicable), and starts the wolfBoot process.
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*
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* @return The return code of the wolfBoot process (should not return).
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*/
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int loader_main(void)
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#else
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int main(void)
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#endif
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{
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#ifdef TARGET_sim
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/* to forward arguments to the test-app for testing. See
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* test-app/app_sim.c */
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main_argv = argv;
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main_argc = argc;
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#endif
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#ifdef WOLFBOOT_HOOK_LOADER_PREINIT
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wolfBoot_hook_preinit();
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#endif
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hal_init();
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#ifdef TEST_FLASH
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hal_flash_test();
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#endif
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#ifdef WOLFBOOT_ENABLE_WOLFHSM_CLIENT
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if (0 != hal_hsm_init_connect()) {
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wolfBoot_panic();
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}
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#elif defined(WOLFBOOT_ENABLE_WOLFHSM_SERVER)
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if (0 != hal_hsm_server_init()) {
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wolfBoot_panic();
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}
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#endif
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spi_flash_probe();
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#ifdef UART_FLASH
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uart_init(UART_FLASH_BITRATE, 8, 'N', 1);
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uart_send_current_version();
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#endif
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#ifdef WOLFBOOT_TPM
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wolfBoot_tpm2_init();
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#endif
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#ifdef WOLFCRYPT_SECURE_MODE
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wcs_Init();
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#endif
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#ifdef WOLFBOOT_HOOK_LOADER_POSTINIT
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wolfBoot_hook_postinit();
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#endif
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wolfBoot_start();
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/* wolfBoot_start should never return. */
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wolfBoot_panic();
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return 0;
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}
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