1 // Copyright 2017 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 #include "sdkconfig.h" 16 #include "esp_system.h" 17 #include "esp_rom_sys.h" 18 19 #if CONFIG_COMPILER_STACK_CHECK 20 21 #define LOG_LOCAL_LEVEL CONFIG_LOG_DEFAULT_LEVEL 22 #include "esp_log.h" 23 const static char *TAG = "stack_chk"; 24 25 void *__stack_chk_guard = NULL; 26 27 static void __attribute__ ((constructor)) __esp_stack_guard_setup(void)28__esp_stack_guard_setup (void) 29 { 30 ESP_LOGD(TAG, "Intialize random stack guard"); 31 __stack_chk_guard = (void *)esp_random(); 32 } 33 __stack_chk_fail(void)34void __stack_chk_fail (void) 35 { 36 esp_rom_printf("\r\nStack smashing protect failure!\r\n\r\n"); 37 abort(); 38 } 39 40 #endif 41