mirror of
https://github.com/pmret/papermario.git
synced 2024-11-24 06:09:54 +00:00
fdf0ed245b
- Use length heuristic to avoid computing true Lev ratio - Prebuild `sym_bytes` map for `sym_name` -> `query_bytes`
343 lines
11 KiB
Python
Executable File
343 lines
11 KiB
Python
Executable File
#!/usr/bin/python3
|
|
|
|
import argparse
|
|
from collections import Counter, OrderedDict
|
|
from datetime import datetime
|
|
|
|
from Levenshtein import ratio
|
|
import os
|
|
import re
|
|
import sys
|
|
|
|
script_dir = os.path.dirname(os.path.realpath(__file__))
|
|
root_dir = script_dir + "/../"
|
|
asm_dir = root_dir + "ver/current/asm/nonmatchings/"
|
|
build_dir = root_dir + "build/"
|
|
|
|
|
|
def read_rom():
|
|
with open(root_dir + "ver/current/baserom.z64", "rb") as f:
|
|
return f.read()
|
|
|
|
|
|
def find_dir(query):
|
|
for root, dirs, files in os.walk(asm_dir):
|
|
for d in dirs:
|
|
if d == query:
|
|
return os.path.join(root, d)
|
|
return None
|
|
|
|
|
|
def get_all_s_files():
|
|
ret = set()
|
|
for root, dirs, files in os.walk(asm_dir):
|
|
for f in files:
|
|
if f.endswith(".s"):
|
|
ret.add(f[:-2])
|
|
return ret
|
|
|
|
|
|
def get_symbol_length(sym_name):
|
|
if "end" in map_offsets[sym_name] and "start" in map_offsets[sym_name]:
|
|
return map_offsets[sym_name]["end"] - map_offsets[sym_name]["start"]
|
|
return 0
|
|
|
|
|
|
def get_symbol_bytes(offsets, func):
|
|
if func not in offsets or "start" not in offsets[func] or "end" not in offsets[func]:
|
|
return None
|
|
start = offsets[func]["start"]
|
|
end = offsets[func]["end"]
|
|
bs = list(rom_bytes[start:end])
|
|
|
|
while len(bs) > 0 and bs[-1] == 0:
|
|
bs.pop()
|
|
|
|
insns = bs[0::4]
|
|
|
|
ret = []
|
|
for ins in insns:
|
|
ret.append(ins >> 2)
|
|
|
|
return bytes(ret).decode('utf-8'), bs
|
|
|
|
|
|
def parse_map(fname):
|
|
ram_offset = None
|
|
cur_file = "<no file>"
|
|
syms = {}
|
|
prev_sym = None
|
|
prev_line = ""
|
|
with open(fname) as f:
|
|
for line in f:
|
|
if "load address" in line:
|
|
if "noload" in line or "noload" in prev_line:
|
|
ram_offset = None
|
|
continue
|
|
ram = int(line[16 : 16 + 18], 0)
|
|
rom = int(line[59 : 59 + 18], 0)
|
|
ram_offset = ram - rom
|
|
continue
|
|
prev_line = line
|
|
|
|
if (
|
|
ram_offset is None
|
|
or "=" in line
|
|
or "*fill*" in line
|
|
or " 0x" not in line
|
|
):
|
|
continue
|
|
ram = int(line[16 : 16 + 18], 0)
|
|
rom = ram - ram_offset
|
|
fn = line.split()[-1]
|
|
if "0x" in fn:
|
|
ram_offset = None
|
|
elif "/" in fn:
|
|
cur_file = fn
|
|
else:
|
|
syms[fn] = (rom, cur_file, prev_sym, ram)
|
|
prev_sym = fn
|
|
return syms
|
|
|
|
|
|
def get_map_offsets(syms):
|
|
offsets = {}
|
|
for sym in syms:
|
|
prev_sym = syms[sym][2]
|
|
if sym not in offsets:
|
|
offsets[sym] = {}
|
|
if prev_sym not in offsets:
|
|
offsets[prev_sym] = {}
|
|
offsets[sym]["start"] = syms[sym][0]
|
|
offsets[prev_sym]["end"] = syms[sym][0]
|
|
return offsets
|
|
|
|
|
|
def is_zeros(vals):
|
|
for val in vals:
|
|
if val != 0:
|
|
return False
|
|
return True
|
|
|
|
|
|
def diff_syms(qb, tb):
|
|
if len(tb[1]) < 8:
|
|
return 0
|
|
|
|
# The minimum edit distance for two strings of different lengths is `abs(l1 - l2)`
|
|
# Quickly check if it's impossible to beat the threshold. If it is, then return 0
|
|
l1, l2 = len(qb[0]), len(tb[0])
|
|
if abs(l1 - l2) / (l1 + l2) > 1.0 - args.threshold:
|
|
return 0
|
|
r = ratio(qb[0], tb[0])
|
|
|
|
if r == 1.0 and qb[1] != tb[1]:
|
|
r = 0.99
|
|
return r
|
|
|
|
|
|
def get_pair_score(query_bytes, b):
|
|
b_bytes = get_symbol_bytes(map_offsets, b)
|
|
|
|
if query_bytes and b_bytes:
|
|
return diff_syms(query_bytes, b_bytes)
|
|
return 0
|
|
|
|
|
|
def get_matches(query):
|
|
query_bytes = get_symbol_bytes(map_offsets, query)
|
|
if query_bytes is None:
|
|
sys.exit("Symbol '" + query + "' not found")
|
|
|
|
ret = {}
|
|
for symbol in map_offsets:
|
|
if symbol is not None and query != symbol:
|
|
score = get_pair_score(query_bytes, symbol)
|
|
if score >= args.threshold:
|
|
ret[symbol] = score
|
|
return OrderedDict(sorted(ret.items(), key=lambda kv: kv[1], reverse=True))
|
|
|
|
|
|
def do_query(query):
|
|
matches = get_matches(query)
|
|
num_matches = len(matches)
|
|
|
|
if num_matches == 0:
|
|
print(query + " - found no matches")
|
|
return
|
|
|
|
i = 0
|
|
more_str = ":"
|
|
if args.num_out < num_matches:
|
|
more_str = " (showing only " + str(args.num_out) + "):"
|
|
|
|
print(query + " - found " + str(num_matches) + " matches total" + more_str)
|
|
for match in matches:
|
|
if i == args.num_out:
|
|
break
|
|
match_str = "{:.2f} - {}".format(matches[match], match)
|
|
if match not in s_files:
|
|
match_str += " (decompiled)"
|
|
print(match_str)
|
|
i += 1
|
|
print()
|
|
|
|
|
|
def all_matches(all_funcs_flag):
|
|
match_dict = dict()
|
|
to_match_files = list(s_files.copy())
|
|
|
|
# assumption that after half the functions have been matched, nothing of significance is left
|
|
# since duplicates that already have been discovered are removed from tp_match_files
|
|
if all_funcs_flag:
|
|
iter_limit = 0
|
|
else:
|
|
iter_limit = len(s_files) / 2
|
|
|
|
num_decomped_dupes = 0
|
|
num_undecomped_dupes = 0
|
|
num_perfect_dupes = 0
|
|
|
|
i = 0
|
|
while len(to_match_files) > iter_limit:
|
|
file = to_match_files[0]
|
|
|
|
i += 1
|
|
print("File matching progress: {:%}".format(i / (len(s_files) - iter_limit)), end='\r')
|
|
|
|
if get_symbol_length(file) < 16:
|
|
to_match_files.remove(file)
|
|
continue
|
|
|
|
matches = get_matches(file)
|
|
num_matches = len(matches)
|
|
if num_matches == 0:
|
|
to_match_files.remove(file)
|
|
continue
|
|
|
|
num_undecomped_dupes += 1
|
|
|
|
match_list = []
|
|
for match in matches:
|
|
if match in to_match_files:
|
|
i += 1
|
|
to_match_files.remove(match)
|
|
|
|
match_str = "{:.2f} - {}".format(matches[match], match)
|
|
if matches[match] >= 0.995:
|
|
num_perfect_dupes += 1
|
|
|
|
if match not in s_files:
|
|
num_decomped_dupes += 1
|
|
match_str += " (decompiled)"
|
|
else:
|
|
num_undecomped_dupes += 1
|
|
|
|
match_list.append(match_str)
|
|
|
|
match_dict.update({file: (num_matches, match_list)})
|
|
to_match_files.remove(file)
|
|
|
|
output_match_dict(match_dict, num_decomped_dupes, num_undecomped_dupes, num_perfect_dupes, i)
|
|
|
|
|
|
def output_match_dict(match_dict, num_decomped_dupes, num_undecomped_dupes, num_perfect_dupes, num_checked_files):
|
|
out_file = open(datetime.today().strftime('%Y-%m-%d-%H-%M-%S') + "_all_matches.txt", "w+")
|
|
|
|
out_file.write("Number of s-files: " + str(len(s_files)) + "\n"
|
|
"Number of checked s-files: " + str(round(num_checked_files)) + "\n"
|
|
"Number of decompiled duplicates found: " + str(num_decomped_dupes) + "\n"
|
|
"Number of undecompiled duplicates found: " + str(num_undecomped_dupes) + "\n"
|
|
"Number of overall exact duplicates found: " + str(num_perfect_dupes) + "\n\n")
|
|
|
|
sorted_dict = OrderedDict(sorted(match_dict.items(), key=lambda item: item[1][0], reverse=True))
|
|
|
|
print("Creating output file: " + out_file.name, end='\n')
|
|
for file_name, matches in sorted_dict.items():
|
|
out_file.write(file_name + " - found " + str(matches[0]) + " matches total:\n")
|
|
for match in matches[1]:
|
|
out_file.write(match + "\n")
|
|
out_file.write("\n")
|
|
|
|
out_file.close()
|
|
|
|
|
|
def do_cross_query():
|
|
ccount = Counter()
|
|
clusters = []
|
|
|
|
sym_bytes = {}
|
|
for sym_name in map_syms:
|
|
if not sym_name.startswith("D_") and \
|
|
not sym_name.startswith("_binary") and \
|
|
not sym_name.startswith("jtbl_") and \
|
|
not re.match(r"L[0-9A-F]{8}_[0-9A-F]{5,6}", sym_name):
|
|
if get_symbol_length(sym_name) > 16:
|
|
sym_bytes[sym_name] = get_symbol_bytes(map_offsets, sym_name)
|
|
|
|
for sym_name, query_bytes in sym_bytes.items():
|
|
cluster_match = False
|
|
for cluster in clusters:
|
|
cluster_first = cluster[0]
|
|
cluster_score = diff_syms(query_bytes, sym_bytes[cluster_first])
|
|
if cluster_score >= args.threshold:
|
|
cluster_match = True
|
|
if sym_name.startswith("func") and not cluster_first.startswith("func"):
|
|
ccount[sym_name] = ccount[cluster_first]
|
|
del ccount[cluster_first]
|
|
cluster_first = sym_name
|
|
cluster.insert(0, cluster_first)
|
|
else:
|
|
cluster.append(sym_name)
|
|
|
|
if cluster_first.startswith("func"):
|
|
ccount[cluster_first] += 1
|
|
|
|
#if len(cluster) % 10 == 0 and len(cluster) >= 10:
|
|
print(f"Cluster {cluster_first} grew to size {len(cluster)} - {sym_name}: {str(cluster_score)}")
|
|
break
|
|
if not cluster_match:
|
|
clusters.append([sym_name])
|
|
print(ccount.most_common(100))
|
|
|
|
|
|
parser = argparse.ArgumentParser(description="Tool to find duplicates for a specific function or to find all duplicates across the codebase.")
|
|
group = parser.add_mutually_exclusive_group()
|
|
group.add_argument("-a", "--all", help="find ALL duplicates and output them into a file", action='store_true', required=False)
|
|
group.add_argument("-c", "--cross", help="do a cross query over the codebase", action='store_true', required=False)
|
|
group.add_argument("-s", "--short", help="find MOST duplicates besides some very small duplicates. Cuts the runtime in half with minimal loss", action='store_true', required=False)
|
|
parser.add_argument("query", help="function or file", nargs='?', default=None)
|
|
parser.add_argument("-t", "--threshold", help="score threshold between 0 and 1 (higher is more restrictive)", type=float, default=0.9, required=False)
|
|
parser.add_argument("-n", "--num-out", help="number of functions to display", type=int, default=100, required=False)
|
|
|
|
args = parser.parse_args()
|
|
|
|
if __name__ == "__main__":
|
|
rom_bytes = read_rom()
|
|
map_syms = parse_map(os.path.join(root_dir, "ver", "current", "build", "papermario.map"))
|
|
map_offsets = get_map_offsets(map_syms)
|
|
|
|
s_files = get_all_s_files()
|
|
|
|
query_dir = find_dir(args.query)
|
|
|
|
if query_dir is not None:
|
|
files = os.listdir(query_dir)
|
|
for f_name in files:
|
|
do_query(f_name[:-2])
|
|
else:
|
|
if args.cross:
|
|
args.threshold = 0.985
|
|
do_cross_query()
|
|
elif args.all:
|
|
args.threshold = 0.985
|
|
all_matches(True)
|
|
elif args.short:
|
|
args.threshold = 0.985
|
|
all_matches(False)
|
|
else:
|
|
if args.query is None:
|
|
parser.print_help()
|
|
else:
|
|
do_query(args.query)
|