diff --git a/tools/unnamed.py b/tools/unnamed.py new file mode 100755 index 000000000..205e1efd5 --- /dev/null +++ b/tools/unnamed.py @@ -0,0 +1,94 @@ +#!/usr/bin/env python3 + +from sys import stderr, exit +from subprocess import run +from struct import unpack, calcsize +from enum import Enum + +class symtype(Enum): + LOCAL = 0 + IMPORT = 1 + EXPORT = 2 + +def unpack_file(fmt, file): + size = calcsize(fmt) + return 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() + else: + buf += b + + +# Fix broken pipe when using `head` +from signal import signal, SIGPIPE, SIG_DFL +signal(SIGPIPE,SIG_DFL) + +import argparse +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)") +args = parser.parse_args() + +# Get list of object files +objects = None +if args.rootdir: + for line in run(["make", "-C", args.rootdir, "-s", "-p"], + capture_output=True).stdout.decode().split("\n"): + if line.startswith("crystal_obj := "): + objects = line[15:].strip().split() + break + else: + print("Error: Object files not found!", file=stderr) + exit(1) + +# Scan all unnamed symbols from the symfile +symbols = set() +for line in args.symfile: + line = line.split(";")[0].strip() + split = line.split(" ") + if len(split) < 2: + continue + + 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 +print("Unnamed symbols: %d" % len(symbols)) +if not objects: + for sym in symbols: + print(sym) + exit() + +# Count the amount of symbols in each file +files = {} +for objfile in objects: + f = open(objfile, "rb") + if unpack_file("4s", f)[0] != b'RGB6': + print("Error: File '%s' is of an unknown format." % filename, file=stderr) + exit(1) + + num_symbols = unpack_file("