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#!/usr/bin/env python3
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2018, Linaro Limited
#
import argparse
import array
import os
import re
import sys
def get_args():
parser = argparse.ArgumentParser(description='Converts a binary file '
'into C source file defining binary '
'data as a constant byte array.')
parser.add_argument('--bin', required=True,
help='Path to the input binary file')
parser.add_argument('--vname', required=True,
help='Variable name for the generated table in '
'the output C source file.')
parser.add_argument('--out', required=True,
help='Path for the generated C file')
parser.add_argument('--text', required=False, action='store_true',
help='Treat input as a text file')
return parser.parse_args()
def main():
args = get_args()
with open(args.bin, 'rb') as indata:
bytes = indata.read()
if args.text:
bytes += b'\0'
size = len(bytes)
f = open(args.out, 'w')
f.write('/* Generated from ' + args.bin + ' by ' +
os.path.basename(__file__) + ' */\n\n')
f.write('#include <compiler.h>\n')
f.write('#include <stdint.h>\n')
if args.text:
f.write('__extension__ const char ' + args.vname + '[] = {\n')
else:
f.write('__extension__ const uint8_t ' + args.vname + '[] ' +
' __aligned(__alignof__(uint64_t)) = {\n')
i = 0
while i < size:
if i % 8 == 0:
f.write('\t\t')
if args.text and i != size - 1 and bytes[i] == b'\0':
print('Error: null byte encountered in text file')
sys.exit(1)
f.write('0x' + '{:02x}'.format(bytes[i]) + ',')
i = i + 1
if i % 8 == 0 or i == size:
f.write('\n')
else:
f.write(' ')
f.write('};\n')
f.close()
if __name__ == "__main__":
main()
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