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#!/usr/bin/env python3
from pathlib import Path
import re
import os
import colorama
colorama.init()
files = {}
fail = False
pattern = r'\b\w+\s+\w+(.*?)?\s*=\s*(?:;|{)?'
def clean_symbol(s):
s = s.strip()
if(s.startswith('static')):
s = ' '.join(s.split(' ')[1:])
if(s.startswith('/* static */')):
s = ' '.join(s.split(' ')[3:])
if(s.startswith('const')):
s = ' '.join(s.split(' ')[1:])
if(s.startswith('extern')):
s = ' '.join(s.split(' ')[1:])
if('[' in s):
s = s.split('[')[0]
return re.sub(r'[\[\];]', '', s).split(' ')[1]
def search_c(file, path):
with open(path, 'r') as f:
lines = f.readlines()
for line in lines:
search = re.findall(pattern, line)
if search and not line.startswith('#') and not line.startswith(' ') and not '//' in line and len(line.strip()) > 0:
files[file].append({
'name': clean_symbol(line),
'used': [],
'global': False,
})
def search_asm(file, path):
with open(path, 'r') as f:
lines = f.readlines()
for line in lines:
if line.startswith('dlabel'):
files[file].append({
'name': line.split(' ')[1].strip(),
'used': [],
'global': False,
})
def init_file(file):
if file not in files:
files[file] = []
def parse_symbols():
for path in Path('src').rglob('*.c'):
file = str(path).split('/')[-1].split('.')[0]
init_file(file)
search_c(file, path)
for path in Path('asm').rglob('*.s'):
file = str(path).split('/')[-1].split('.')[0]
if file not in files:
continue
search_asm(file, path)
def scan_code():
for path in Path('src').rglob('*.c'):
with open(path, 'r') as f:
print(f' - Scanning symbols on {colorama.Fore.YELLOW}{str(path).split("/")[-1]}{colorama.Fore.LIGHTWHITE_EX}')
buffer = f.readlines()
for line in buffer:
for file in files:
for symbol in files[file]:
if symbol['name'] in line:
if not line.strip().startswith('extern'):
found = str(path).split('/')[-1].split('.')[0]
if found not in symbol['used']:
symbol['used'].append(found)
def scan_variables():
with open('include/variables.h', 'r') as f:
buffer = f.readlines()
for line in buffer:
if line.strip().startswith('extern'):
symbol = clean_symbol(line.strip())
for file in files:
for s in files[file]:
if s['name'] == symbol:
s['global'] = True
def print_results():
global fail
output = {}
for file in files:
for symbol in files[file]:
for used in symbol['used']:
if used != file and symbol['global']:
if used not in output:
output[used] = []
print(f' - Symbol {colorama.Fore.LIGHTBLUE_EX}{symbol["name"]} {colorama.Fore.LIGHTWHITE_EX}from {colorama.Fore.LIGHTGREEN_EX}{file} {colorama.Fore.LIGHTWHITE_EX}is used on {colorama.Fore.LIGHTMAGENTA_EX}{used} {colorama.Fore.LIGHTWHITE_EX}' + f'{colorama.Fore.LIGHTWHITE_EX}and its global' if symbol['global'] else '')
output[used].append({
'name': symbol['name'],
'file': file,
})
fail = True
print(f'{colorama.Fore.LIGHTWHITE_EX} - Writing to file...')
# Write to file
with open('symbols.csv', 'w') as f:
max = 0
for file in output:
f.write(f'{file},')
max = max + len(output[file])
f.write('\n')
keys = list(output.keys())
for i in range(0, max):
for key in keys:
if len(output[key]) > i:
f.write(f'{output[key][i]["file"]}: {output[key][i]["name"]},')
else:
f.write(',')
f.write('\n')
print(f'{colorama.Fore.GREEN} - Done, Good luck!')
def print_error():
print(colorama.Fore.LIGHTWHITE_EX +
"\n BSS could be REORDERED!!\n"
" Oh! MY GOD!!", file=os.sys.stderr)
print("", file=os.sys.stderr)
if __name__ == '__main__':
print(colorama.Fore.LIGHTWHITE_EX, end='')
print('Parsing .bss.s files...');
parse_symbols()
print('Searching for used symbols...');
scan_code()
scan_variables()
print_results()
if fail:
print_error()
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