mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
// Copyright 2017-2018 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 <assert.h>
|
|
#include <sys/param.h>
|
|
#include "esp_ota_ops.h"
|
|
#include "esp_attr.h"
|
|
#include "sdkconfig.h"
|
|
|
|
// Application version info
|
|
const __attribute__((section(".rodata_desc"))) esp_app_desc_t esp_app_desc = {
|
|
.magic_word = ESP_APP_DESC_MAGIC_WORD,
|
|
#ifdef CONFIG_APP_EXCLUDE_PROJECT_VER_VAR
|
|
.version = "",
|
|
#else
|
|
.version = PROJECT_VER,
|
|
#endif
|
|
|
|
#ifdef CONFIG_APP_EXCLUDE_PROJECT_NAME_VAR
|
|
.project_name = "",
|
|
#else
|
|
.project_name = PROJECT_NAME,
|
|
#endif
|
|
.idf_ver = IDF_VER,
|
|
|
|
#ifdef CONFIG_APP_SECURE_VERSION
|
|
.secure_version = CONFIG_APP_SECURE_VERSION,
|
|
#else
|
|
.secure_version = 0,
|
|
#endif
|
|
|
|
#ifdef CONFIG_APP_COMPILE_TIME_DATE
|
|
.time = __TIME__,
|
|
.date = __DATE__,
|
|
#else
|
|
.time = "",
|
|
.date = "",
|
|
#endif
|
|
};
|
|
|
|
|
|
#ifndef CONFIG_APP_EXCLUDE_PROJECT_VER_VAR
|
|
_Static_assert(sizeof(PROJECT_VER) <= sizeof(esp_app_desc.version), "PROJECT_VER is longer than version field in structure");
|
|
#endif
|
|
_Static_assert(sizeof(IDF_VER) <= sizeof(esp_app_desc.idf_ver), "IDF_VER is longer than idf_ver field in structure");
|
|
#ifndef CONFIG_APP_EXCLUDE_PROJECT_NAME_VAR
|
|
_Static_assert(sizeof(PROJECT_NAME) <= sizeof(esp_app_desc.project_name), "PROJECT_NAME is longer than project_name field in structure");
|
|
#endif
|
|
|
|
const esp_app_desc_t *esp_ota_get_app_description(void)
|
|
{
|
|
return &esp_app_desc;
|
|
}
|
|
|
|
/* The following two functions may be called from the panic handler
|
|
* or core dump, hence IRAM_ATTR.
|
|
*/
|
|
|
|
static inline char IRAM_ATTR to_hex_digit(unsigned val)
|
|
{
|
|
return (val < 10) ? ('0' + val) : ('a' + val - 10);
|
|
}
|
|
|
|
__attribute__((constructor)) void esp_ota_init_app_elf_sha256(void)
|
|
{
|
|
esp_ota_get_app_elf_sha256(NULL, 0);
|
|
}
|
|
|
|
/* The esp_app_desc.app_elf_sha256 should be possible to print in panic handler during cache is disabled.
|
|
* But because the cache is disabled the reading esp_app_desc.app_elf_sha256 is not right and
|
|
* can lead to a complete lock-up of the CPU.
|
|
* For this reason we do a reading of esp_app_desc.app_elf_sha256 while start up in esp_ota_init_app_elf_sha256()
|
|
* and keep it in the static s_app_elf_sha256 value.
|
|
*/
|
|
int IRAM_ATTR esp_ota_get_app_elf_sha256(char* dst, size_t size)
|
|
{
|
|
static char s_app_elf_sha256[CONFIG_APP_RETRIEVE_LEN_ELF_SHA / 2];
|
|
static bool first_call = true;
|
|
if (first_call) {
|
|
first_call = false;
|
|
const uint8_t* src = esp_app_desc.app_elf_sha256;
|
|
for (size_t i = 0; i < sizeof(s_app_elf_sha256); ++i) {
|
|
s_app_elf_sha256[i] = src[i];
|
|
}
|
|
}
|
|
if (dst == NULL || size == 0) {
|
|
return 0;
|
|
}
|
|
size_t n = MIN((size - 1) / 2, sizeof(s_app_elf_sha256));
|
|
for (size_t i = 0; i < n; ++i) {
|
|
dst[2*i] = to_hex_digit(s_app_elf_sha256[i] >> 4);
|
|
dst[2*i + 1] = to_hex_digit(s_app_elf_sha256[i] & 0xf);
|
|
}
|
|
dst[2*n] = 0;
|
|
return 2*n + 1;
|
|
}
|