Freertos porting

CMakeLists.txt

@@ -59,9 +59,12 @@ write_basic_package_version_file(FCS.cmake
                                   VERSION ${PROJECT_VERSION}
                                   COMPATIBILITY SameMajorVersion)
 
-add_subdirectory(third_party)
 add_subdirectory(include)
 add_subdirectory(lib)
-add_subdirectory(app)
+
+if(${ARCH} STREQUAL linux_aarch64)
+  add_subdirectory(third_party)
+  add_subdirectory(app)
+endif()
 
 add_subdirectory(toolchain)

cmake/arch.cmake

@@ -8,4 +8,4 @@ if (NOT DEFINED ARCH)
 endif ()
 
 # Setup platform toolchain file.
-include(${CMAKE_SOURCE_DIR}/toolchain/${ARCH}/toolchain.cmake)
+include(${CMAKE_CURRENT_SOURCE_DIR}/toolchain/${ARCH}/toolchain.cmake)

cmake/os.cmake

@@ -8,4 +8,4 @@ if (NOT DEFINED OS)
 endif ()
 
 # Setup platform toolchain file.
-include(${CMAKE_SOURCE_DIR}/toolchain/${OS}/toolchain.cmake)
+include(${CMAKE_CURRENT_SOURCE_DIR}/toolchain/${OS}/toolchain.cmake)

lib/include/os/freertos/CMakeLists.txt

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: MIT-0
+# Copyright (C) 2025 Altera
+
+if(NOT DEFINED FREERTOS_TOOLCHAIN)
+    message(FATAL_ERROR "not building inside inside FreeRTOS")
+endif()
+set(SHARED_LIB OFF)
+set(OS freertos)
+

lib/src/common/libfcs.c

@@ -2937,7 +2937,7 @@ static FCS_OSAL_INT fcs_fit_image_hash_verify(FCS_OSAL_UUID *session_uuid,
 	FCS_OSAL_SIZE cal_hash_size = FCS_SHA_384_DIGEST_SIZE;
 	struct fcs_digest_get_req get_digest_req;
 
-	cal_hash = (FCS_OSAL_CHAR *)malloc(FCS_SHA_384_DIGEST_SIZE);
+	cal_hash = (FCS_OSAL_CHAR *)fcs_malloc(FCS_SHA_384_DIGEST_SIZE);
 	if (!cal_hash) {
 		FCS_LOG_ERR("Error in allocating memory for image hash\n");
 		return -ENOMEM;

lib/src/os/freertos/CMakeLists.txt

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: MIT-0
+# Copyright (C) 2025 Altera
+
+if(NOT DEFINED FREERTOS_TOOLCHAIN)
+    message(FATAL_ERROR "not building inside inside FreeRTOS")
+endif()
+set(SHARED_LIB OFF)
+set(OS freertos)
+

toolchain/freertos_aarch64/CMakeLists.txt

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: MIT-0
+# Copyright (C) 2025 Altera
+
+cmake_minimum_required(VERSION 3.20)
+
+add_subdirectory(include)
+

toolchain/freertos_aarch64/include/CMakeLists.txt

@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: MIT-0
+# Copyright (C) 2025 Altera
+
+target_include_directories(FCS PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}")
+

toolchain/freertos_aarch64/include/libfcs_osal_types.h

@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: MIT-0 */
+/*
+ * Copyright (C) 2025 Altera
+ */
+
+/**
+ *
+ * @file fcs_osal_types.h
+ * @brief contains OS abstraction layer data types for linux_aarch64 platform.
+ */
+
+#ifndef FCS_OSAL_TYPES_H
+#define FCS_OSAL_TYPES_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#include <stdint.h>
+#include <stdbool.h>
+#include "osal.h"
+
+#define FCS_OSAL_UUID_SIZE (16U)
+#define FCS_AES_CRYPT_BLOCK_SIZE (16U)
+
+#define FCS_AES_BLOCK_MODE_ECB 0
+#define FCS_AES_BLOCK_MODE_CBC 1
+#define FCS_AES_BLOCK_MODE_CTR 2
+#define FCS_AES_BLOCK_MODE_GCM 3
+#define FCS_AES_BLOCK_MODE_GHASH 4
+
+#define FCS_AES_GCM_MAX_AAD_SIZE 65535
+#define FCS_AES_GCM_TAG_SIZE 3
+
+#define FCS_AES_IV_SOURCE_INTERNAL 1
+#define FCS_AES_IV_SOURCE_EXTERNAL 0
+
+#define FCS_AES_ENCRYPT 0
+#define FCS_AES_DECRYPT 1
+
+#define FCS_ECC_CURVE_NIST_P256 1
+#define FCS_ECC_CURVE_NIST_P384 2
+#define FCS_ECC_CURVE_BRAINPOOL_P256 3
+#define FCS_ECC_CURVE_BRAINPOOL_P384 4
+
+#define FCS_ECDH_P256_PUBKEY_LEN 64
+#define FCS_ECDH_P384_PUBKEY_LEN 96
+#define FCS_ECDH_BP256_PUBKEY_LEN 64
+#define FCS_ECDH_BP384_PUBKEY_LEN 96
+#define FCS_ECDH_P256_SECRET_LEN 32
+#define FCS_ECDH_P384_SECRET_LEN 48
+#define FCS_ECDH_BP256_SECRET_LEN 32
+#define FCS_ECDH_BP384_SECRET_LEN 48
+
+#define FCS_SHA_384 1
+#define FCS_SHA_384_DIGEST_SIZE 48
+#define FCS_CERT_LEN_PARAM_SZ	sizeof(uint32_t)
+
+/** unsigned 64 bit*/
+typedef uint64_t FCS_OSAL_U64;
+/** unsigned 32 bit*/
+typedef uint32_t FCS_OSAL_U32;
+/** unsigned 16 bit*/
+typedef uint16_t FCS_OSAL_U16;
+/** unsigned 8 bit*/
+typedef uint8_t FCS_OSAL_U8;
+
+/** signed 64 bit*/
+typedef int64_t FCS_OSAL_S64;
+/** signed 32 bit*/
+typedef int32_t FCS_OSAL_S32;
+/** unsigned 16 bit*/
+typedef int16_t FCS_OSAL_S16;
+/** unsigned 8 bit*/
+typedef int8_t FCS_OSAL_S8;
+
+/** void type*/
+typedef void FCS_OSAL_VOID;
+/** character data type*/
+typedef char FCS_OSAL_CHAR;
+/** Unsigned character data type*/
+typedef unsigned char FCS_OSAL_UCHAR;
+/** boolean data type*/
+typedef bool FCS_OSAL_BOOL;
+
+/** integer data type*/
+typedef int FCS_OSAL_INT;
+/** unsigned integer data type*/
+typedef unsigned int FCS_OSAL_UINT;
+/** data type to denote offset */
+typedef int FCS_OSAL_OFFSET;
+/** data type to denote size*/
+typedef size_t FCS_OSAL_SIZE;
+
+/** mutex object type*/
+typedef SemaphoreHandle_t FCS_OSAL_MUTEX;
+/** file object type*/
+typedef char* FCS_OSAL_FILE;
+/** integer data type uuid for session ids*/
+typedef char FCS_OSAL_UUID;
+
+// TODO:  which data type
+typedef int FCS_OSAL_ERROR;
+
+// TODO: which data type
+typedef int FCS_OSAL_RSIZE;
+
+typedef uintptr_t FCS_OSAL_UINTPTR;
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif

toolchain/freertos_aarch64/toolchain.cmake

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: MIT-0
+# Copyright (C) 2025 Altera
+
+if(NOT DEFINED FREERTOS_TOOLCHAIN)
+    message(FATAL_ERROR "not building inside inside FreeRTOS")
+endif()
+set(SHARED_LIB OFF)
+set(OS freertos)