1 // Copyright 2015-2021 Espressif Systems (Shanghai) PTE LTD 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef BOOTLOADER_HOOKS_H 16 #define BOOTLOADER_HOOKS_H 17 18 /** 19 * @file The 2nd stage bootloader can be overriden or completed by an application. 20 * The functions declared here are weak, and thus, are meant to be defined by a user 21 * project, if required. 22 * Please check `custom_bootloader` ESP-IDF examples for more details about this feature. 23 */ 24 25 26 /** 27 * @brief Function executed *before* the second stage bootloader initialization, 28 * if provided. 29 */ 30 void __attribute__((weak)) bootloader_before_init(void); 31 32 /** 33 * @brief Function executed *after* the second stage bootloader initialization, 34 * if provided. 35 */ 36 void __attribute__((weak)) bootloader_after_init(void); 37 38 #endif // BOOTLOADER_HOOKS_H 39
