mirror of https://github.com/pret/pokecrystal.git
138 lines
3.9 KiB
Python
Executable File
138 lines
3.9 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
Usage: unnamed.py [-h] [-r rootdir] [-l count] pokecrystal.sym
|
|
|
|
Parse the symfile to find unnamed symbols.
|
|
"""
|
|
|
|
import sys
|
|
import argparse
|
|
import subprocess
|
|
import struct
|
|
import enum
|
|
import signal
|
|
|
|
class symtype(enum.Enum):
|
|
LOCAL = 0
|
|
IMPORT = 1
|
|
EXPORT = 2
|
|
|
|
def unpack_from(fmt, file):
|
|
size = struct.calcsize(fmt)
|
|
return struct.unpack(fmt, file.read(size))
|
|
|
|
def read_string(file):
|
|
buf = bytearray()
|
|
while True:
|
|
b = file.read(1)
|
|
if b is None or b == b'\0':
|
|
return buf.decode()
|
|
buf += b
|
|
|
|
# Fix broken pipe when using `head`
|
|
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
|
|
|
|
parser = argparse.ArgumentParser(description='Parse the symfile to find unnamed symbols')
|
|
parser.add_argument('symfile', type=argparse.FileType('r'),
|
|
help='the list of symbols')
|
|
parser.add_argument('-r', '--rootdir', type=str,
|
|
help='scan the output files to obtain a list of files with unnamed symbols (note: will rebuild objects as necessary)')
|
|
parser.add_argument('-l', '--list', type=int, default=0,
|
|
help="output this many of each file's unnamed symbols (note: requires -r)")
|
|
args = parser.parse_args()
|
|
|
|
# Get list of object files
|
|
objects = None
|
|
if args.rootdir:
|
|
for line in subprocess.Popen(['make', '-C', args.rootdir, '-s', '-p', 'DEBUG=1'],
|
|
stdout=subprocess.PIPE).stdout.read().decode().split('\n'):
|
|
if line.startswith('pokecrystal_obj := '):
|
|
objects = line[19:].strip().split()
|
|
break
|
|
else:
|
|
print('Error: Object files not found!', file=sys.stderr)
|
|
sys.exit(1)
|
|
|
|
# Scan all unnamed symbols from the symfile
|
|
symbols_total = 0
|
|
symbols = set()
|
|
for line in args.symfile:
|
|
line = line.split(';')[0].strip()
|
|
split = line.split(' ')
|
|
if len(split) < 2:
|
|
continue
|
|
|
|
symbols_total += 1
|
|
|
|
symbol = ' '.join(split[1:]).strip()
|
|
if symbol[-3:].lower() == split[0][-3:].lower():
|
|
symbols.add(symbol)
|
|
|
|
# If no object files were provided, just print what we know and exit
|
|
unnamed_percent = 100 * (symbols_total - len(symbols)) / symbols_total
|
|
print(f'Unnamed pokecrystal symbols: {len(symbols)} ({unnamed_percent:.2f}% complete)')
|
|
if not objects:
|
|
for sym in symbols:
|
|
print(sym)
|
|
sys.exit()
|
|
|
|
# Count the amount of symbols in each file
|
|
file_symbols = {}
|
|
for objfile in objects:
|
|
with open(objfile, 'rb') as file:
|
|
obj_ver = None
|
|
|
|
magic = unpack_from('4s', file)[0]
|
|
if magic == b'RGB6':
|
|
obj_ver = 6
|
|
elif magic == b'RGB9':
|
|
obj_ver = 10 + unpack_from('<I', file)[0]
|
|
|
|
if obj_ver not in [6, 10, 11, 12, 13, 15, 16, 17, 18]:
|
|
print(f"Error: File '{objfile}' is of an unknown format.", file=sys.stderr)
|
|
sys.exit(1)
|
|
|
|
num_symbols = unpack_from('<I', file)[0]
|
|
unpack_from('<I', file) # skip num sections
|
|
|
|
if obj_ver in [16, 17, 18]:
|
|
node_filenames = []
|
|
num_nodes = unpack_from('<I', file)[0]
|
|
for x in range(num_nodes):
|
|
unpack_from('<II', file) # parent id, parent line no
|
|
node_type = unpack_from('<B', file)[0]
|
|
if node_type:
|
|
node_filenames.append(read_string(file))
|
|
else:
|
|
node_filenames.append('rept')
|
|
depth = unpack_from('<I', file)[0]
|
|
for i in range(depth):
|
|
unpack_from('<I', file) # rept iterations
|
|
node_filenames.reverse()
|
|
|
|
for _ in range(num_symbols):
|
|
sym_name = read_string(file)
|
|
sym_type = symtype(unpack_from('<B', file)[0] & 0x7f)
|
|
if sym_type == symtype.IMPORT:
|
|
continue
|
|
if obj_ver in [16, 17, 18]:
|
|
sym_fileno = unpack_from('<I', file)[0]
|
|
sym_filename = node_filenames[sym_fileno]
|
|
else:
|
|
sym_filename = read_string(file)
|
|
unpack_from('<III', file)
|
|
if sym_name not in symbols:
|
|
continue
|
|
|
|
if sym_filename not in file_symbols:
|
|
file_symbols[sym_filename] = []
|
|
file_symbols[sym_filename].append(sym_name)
|
|
|
|
# Sort the files, the one with the most amount of symbols first
|
|
file_symbols = sorted(file_symbols.items(), key=lambda item: len(item[1]), reverse=True)
|
|
for filename, unnamed_syms in file_symbols:
|
|
sym_list = ', '.join(unnamed_syms[:args.list])
|
|
print(f'{filename}: {len(unnamed_syms)}{": " + sym_list if sym_list else ""}')
|