esp-idf/examples/build_system/wrappers/bootloader_components/my_boot_message/wrapper.c

25 wiersze
641 B
C

/*
* SPDX-FileCopyrightText: 2010-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: CC0-1.0
*/
#include "esp_log.h"
static const char *TAG = "boot-wrapper";
/**
* Declare the following symbol in order to have access to the original function implementation
*/
extern void __real_bootloader_print_banner(void);
/**
* Extend the bootloader's print banner function.
*/
void __wrap_bootloader_print_banner(void)
{
/* Let's first let the original code run */
__real_bootloader_print_banner();
/* and then extend it by printing another message */
ESP_LOGI(TAG, "message from a bootloader wrapper");
}