OVMS3-idf/components/esp32/stack_check.c
Alexey Gerenkov 692a890232 esp32: Adds Stack Smashing Protection Feature
These changes add posibility to enable GCC stack protector via menuconfig
for all source files in project.
2017-11-17 12:08:36 +03:00

39 lines
1.1 KiB
C

// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "sdkconfig.h"
#include "esp_system.h"
#if CONFIG_STACK_CHECK
#define LOG_LOCAL_LEVEL CONFIG_LOG_DEFAULT_LEVEL
#include "esp_log.h"
const static char *TAG = "stack_chk";
void *__stack_chk_guard = NULL;
static void __attribute__ ((constructor))
__esp_stack_guard_setup (void)
{
ESP_LOGD(TAG, "Intialize random stack guard");
__stack_chk_guard = (void *)esp_random();
}
void __stack_chk_fail (void)
{
ets_printf("\r\nStack smashing protect failure!\r\n\r\n");
abort();
}
#endif