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- #!/usr/bin/env python
- ###############################################################################
- # File Name: elf2c.py
- #
- # Description:
- # Basic python script to convert the binary output from objcopy into a basic c
- # array.
- #
- ###############################################################################
- # Copyright 2019-2021 Cypress Semiconductor Corporation (an Infineon company)
- # or an affiliate of Cypress Semiconductor Corporation
- #
- # 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.
- ###############################################################################
- import os
- import sys
- import argparse
- import binascii
- number_of_columns = 16
- copyright = """/***************************************************************************//**
- * \\file {}
- *
- * \\brief
- * Cortex-M0+ prebuilt application image.
- *
- ********************************************************************************
- * \\copyright
- * Copyright (c) 2018-2021 Cypress Semiconductor Corporation (an Infineon
- * company) or an affiliate of Cypress Semiconductor Corporation
- * SPDX-License-Identifier: LicenseRef-PBL
- *
- * Licensed under the Permissive Binary License
- *******************************************************************************/
- """
- header = """
- #if defined(__APPLE__) && defined(__clang__)
- __attribute__ ((__section__("__CY_M0P_IMAGE,__cy_m0p_image"), used))
- #elif defined(__GNUC__) || defined(__ARMCC_VERSION)
- __attribute__ ((__section__(".cy_m0p_image"), used))
- #elif defined(__ICCARM__)
- #pragma location=".cy_m0p_image"
- #else
- #error "An unsupported toolchain"
- #endif
- const uint8_t cy_m0p_image[] = {
- """
- c_list = []
- # Get component name from the command line
- parser = argparse.ArgumentParser()
- parser.add_argument("bin_path", help="Specify path the input binary file to be converted to a C array.")
- parser.add_argument("c_path", help="Specify path the output C file with the C array.")
- parser.add_argument("c_macro", help="Specify the C preprocessor macro to wrap the variable.")
- args = parser.parse_args()
- bin_path = args.bin_path
- c_path = args.c_path
- c_macro = args.c_macro
- c_file=os.path.basename(c_path)
- f = open(bin_path, "rb")
- data = list(f.read())
- with open(c_path, "w") as c_fd:
- # Clear content of the file
- c_fd.seek(0)
- c_fd.truncate()
- # Write copyright
- c_fd.write(copyright.format(c_file))
- # Include headers
- c_fd.write("#include <stdint.h>\n")
- c_fd.write("#include \"cy_device_headers.h\"\n")
- c_fd.write("\n")
- # Open conditional block
- if c_macro:
- c_fd.write("#if defined(" + c_macro + ")\n")
- # Write template
- c_fd.write(header)
- # Generate list of the data bytes
- for n in data:
- c_list.append(format(n, '#04x'))
- for i in range(int(len(c_list) / number_of_columns) + 1):
- line_list = c_list[i * number_of_columns: (i + 1) * number_of_columns]
- c_fd.write(" ")
- for item in line_list:
- c_fd.write(" %su," % item)
- c_fd.write("\n")
- c_fd.write("};\n")
- # Close conditional block
- if c_macro:
- c_fd.write("#endif /* defined(" + c_macro + ") */")
- c_fd.write("\n")
- f.close()
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