Merge branch 'feature/bootloader_add_extern_c' into 'master'

fix(bootloader_support): Add missing c linkage to some headers

Closes IDFGH-12930

See merge request espressif/esp-idf!31300

components/bootloader_support/include/esp_app_format.h

@@ -11,6 +11,10 @@
 // TODO: IDF-9197
 #include "sdkconfig.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief ESP chip ID
  *
@@ -120,3 +124,7 @@ typedef struct {
 } esp_image_segment_header_t;
 
 #define ESP_IMAGE_MAX_SEGMENTS 16           /*!< Max count of segments in the image. */
+
+#ifdef __cplusplus
+}
+#endif

components/bootloader_support/private_include/bootloader_console.h

@@ -1,11 +1,15 @@
 /*
- * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
 
 #pragma once
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief Initialize console output (UART or USB)
  */
@@ -21,3 +25,7 @@ void bootloader_console_deinit(void);
  * Only defined if USB CDC is used for console output.
  */
 void bootloader_console_write_char_usb(char c);
+
+#ifdef __cplusplus
+}
+#endif

components/bootloader_support/private_include/bootloader_init.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2018-2024 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -8,6 +8,10 @@
 #include "esp_err.h"
 #include "esp_image_format.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**@{*/
 /**
  * @brief labels from bootloader linker script: bootloader.ld
@@ -49,3 +53,7 @@ void bootloader_print_banner(void);
  *          ESP_FAIL - If the setting is not successful.
  */
 esp_err_t bootloader_init(void);
+
+#ifdef __cplusplus
+}
+#endif

components/bootloader_support/private_include/bootloader_sha.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2017-2024 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -16,6 +16,10 @@
 #include <stdlib.h>
 #include "esp_err.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef void *bootloader_sha256_handle_t;
 
 bootloader_sha256_handle_t bootloader_sha256_start(void);
@@ -23,3 +27,7 @@ bootloader_sha256_handle_t bootloader_sha256_start(void);
 void bootloader_sha256_data(bootloader_sha256_handle_t handle, const void *data, size_t data_len);
 
 void bootloader_sha256_finish(bootloader_sha256_handle_t handle, uint8_t *digest);
+
+#ifdef __cplusplus
+}
+#endif

components/bootloader_support/private_include/bootloader_signature.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -29,6 +29,10 @@
 #include "esp32c5/rom/secure_boot.h"
 #endif
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if !CONFIG_IDF_TARGET_ESP32 || CONFIG_ESP32_REV_MIN_FULL >= 300
 
 #if CONFIG_SECURE_BOOT_V2_ENABLED || CONFIG_SECURE_SIGNED_APPS_NO_SECURE_BOOT
@@ -47,3 +51,7 @@ esp_err_t esp_secure_boot_verify_rsa_signature_block(const ets_secure_boot_signa
 #endif /* CONFIG_SECURE_BOOT_V2_ENABLED || CONFIG_SECURE_SIGNED_APPS_NO_SECURE_BOOT */
 
 #endif
+
+#ifdef __cplusplus
+}
+#endif

components/bootloader_support/private_include/bootloader_soc.h

@@ -1,10 +1,15 @@
 /*
- * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
 #pragma once
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
 /**
  * @brief Configure analog super WDT reset
  *
@@ -25,3 +30,7 @@ void bootloader_ana_bod_reset_config(bool enable);
  * @param enable Boolean to enable or disable clock glitch reset
  */
 void bootloader_ana_clock_glitch_reset_config(bool enable);
+
+#ifdef __cplusplus
+}
+#endif

components/bootloader_support/private_include/bootloader_utility.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2018-2024 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -9,6 +9,11 @@
 #include "esp_image_format.h"
 #include "bootloader_config.h"
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
 /**
  * @brief Load partition table.
  *
@@ -16,7 +21,7 @@
  * OTA data partition, factory app partition, and test app partition.
  *
  * @param[out] bs Bootloader state structure used to save read data.
- * @return        Return true if the partition table was succesfully loaded and MD5 checksum is valid.
+ * @return        Return true if the partition table was successfully loaded and MD5 checksum is valid.
  */
 bool bootloader_utility_load_partition_table(bootloader_state_t* bs);
 
@@ -120,3 +125,7 @@ void bootloader_debug_buffer(const void *buffer, size_t length, const char *labe
  * @return ESP_OK if secure boot digest is generated successfully.
  */
 esp_err_t bootloader_sha256_flash_contents(uint32_t flash_offset, uint32_t len, uint8_t *digest);
+
+#ifdef __cplusplus
+}
+#endif

tools/ci/check_public_headers_exceptions.txt

@@ -36,7 +36,6 @@ components/spi_flash/include/memspi_host_driver.h
 components/spi_flash/include/spi_flash_chip_driver.h
 components/spi_flash/include/spi_flash_chip_generic.h
 
-components/bootloader_support/include/esp_app_format.h
 
 components/wpa_supplicant/include/
 components/wpa_supplicant/port/