zephyr/scripts/logging/dictionary/parser/utils.py

44 lines
930 B
Python

#!/usr/bin/env python3
#
# Copyright (c) 2021 Intel Corporation
#
# SPDX-License-Identifier: Apache-2.0
"""
Utilities for Dictionary-based Logingg Parser
"""
import binascii
def convert_hex_file_to_bin(hexfile):
"""This converts a file in hexadecimal to binary"""
bin_data = b''
with open(hexfile, "r") as hfile:
for line in hfile.readlines():
hex_str = line.strip()
bin_str = binascii.unhexlify(hex_str)
bin_data += bin_str
return bin_data
def extract_string_from_section(section, str_ptr):
"""Extract all the strings in an ELF section"""
data = section['data']
max_offset = section['size']
offset = str_ptr - section['start']
if offset < 0 or offset >= max_offset:
return None
ret_str = ""
while (data[offset] != 0) and (offset < max_offset):
ret_str += chr(data[offset])
offset += 1
return ret_str