mirror of
https://github.com/zeldaret/ph
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Aetias
129 lines
3.9 KiB
Python
129 lines
3.9 KiB
Python
import sys
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import os
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import re
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from pathlib import Path
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def eprint(*args, **kwargs):
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print(*args, file=sys.stderr, **kwargs)
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def remove_whitespace(s: str):
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return ''.join(s.split())
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def get_nonmatching_funcs(source: str):
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# Example:
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# ARM bool NONMATCH(ItemManager::func_ov00_020ad790)(unk32 param1)
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# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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funcs = re.findall(r'NONMATCH\W*\(\W*([^\)]+)', source)
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return [remove_whitespace(func) for func in funcs]
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def get_all_nonmatching_funcs():
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funcs = []
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for root, dirs, files in os.walk('src'):
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for file in files:
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name, ext = file.rsplit('.', 1)
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if ext not in ['c', 'cpp']: continue
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with open(os.path.join(root, file), 'r') as f:
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source = f.read()
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funcs.extend(get_nonmatching_funcs(source))
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return set(funcs)
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class Section:
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def __init__(self, name: str) -> None:
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self.name = name
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# Number of bytes from assembly, C/C++ and nonmatching code
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# In total, they amount to the entire code
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self.bytes_asm = 0
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self.bytes_c_cpp = 0
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self.bytes_nonmatch = 0
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def total(self):
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return self.bytes_asm + self.bytes_c_cpp + self.bytes_nonmatch
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nonmatching_funcs = get_all_nonmatching_funcs()
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sections = ['.text', '.rodata', '.data', '.bss', '.init']
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sections = {name: Section(name) for name in sections}
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map_path = None
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regions = ['eur', 'usa']
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for region in regions:
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map_path = Path(f'build/{region}/main.bin.xMAP')
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if map_path.is_file(): break
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if map_path is None:
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eprint('You must build the ROM first!')
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exit(1)
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with open(f'build/{region}/main.bin.xMAP', 'r') as f:
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line = '\n'
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while len(line) > 0:
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# 020AD090 00000028 .text ItemManager::Create() (ItemManager.cpp.o)
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line = f.readline()
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words = line.split()
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if len(words) < 5: continue
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# 020AD090
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addr = words[0]
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try: addr = int(addr, base=16)
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except: continue
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# 00000028
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size = words[1]
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try: size = int(size, base=16)
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except: continue
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# .text
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section = words[2]
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# Much of .sbss hasn't been defined yet, so group it together with .bss
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if section == '.sbss': section = '.bss'
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# .ctor and .init are coupled together
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if section == '.ctor': section = '.init'
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section = sections[section]
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# ItemManager::Create()
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func = words[3]
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if func == '.text': continue
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# ItemManager::Create
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func = func.split('(', 1)[0]
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is_nonmatch = func in nonmatching_funcs
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if is_nonmatch: nonmatching_funcs.remove(func)
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# (ItemManager.cpp.o)
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file = words[-1]
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if not file.startswith('('): continue
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if not file.endswith(')'): continue
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# ItemManager.cpp.o
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file = file[1:-1]
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is_asm = file.endswith('.s.o')
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is_c_cpp = file.endswith('.c.o') or file.endswith('.cpp.o')
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if not is_asm and not is_c_cpp:
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eprint(f"Unknown file extension for '{file}'")
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continue
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if is_asm: section.bytes_asm += size
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if is_c_cpp:
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if is_nonmatch: section.bytes_nonmatch += size
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else: section.bytes_c_cpp += size
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if len(nonmatching_funcs) > 0:
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eprint('Some nonmatching functions were not found in the map file:')
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eprint('\n'.join(list(nonmatching_funcs)))
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eprint()
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for name, section in sections.items():
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total = section.total()
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percent_asm = 100 * (section.bytes_asm / total)
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percent_c_cpp = 100 * (section.bytes_c_cpp / total)
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percent_nonmatch = 100 * (section.bytes_nonmatch / total)
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print(f'{name}:')
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print(f' asm = {section.bytes_asm:7} bytes ({percent_asm:7.3f}%)')
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print(f' C/C++ = {section.bytes_c_cpp:7} bytes ({percent_c_cpp:7.3f}%)')
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print(f' nonmatch = {section.bytes_nonmatch:7} bytes ({percent_nonmatch:7.3f}%)')
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print()
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