Files
Microtransactions64/tools/mapPacker.py
2023-06-25 23:56:43 -04:00

51 lines
1.1 KiB
Python

import sys, struct, subprocess
class MapEntry():
def __init__(self, nm, addr):
self.name = nm
self.addr = addr
self.strlen = (len(nm) + 4) & (~3)
def __str__(self):
return "%s %s %d" % (self.addr, self.name, self.strlen)
def __repr__(self):
return "%s %s %d" % (self.addr, self.name, self.strlen)
structDef = ">LLLL"
symNames = []
proc = subprocess.Popen(["nm", "-S", sys.argv[1]], stdout=subprocess.PIPE)
symbols = proc.communicate()[0].decode('ascii').split("\n")
for line in symbols:
# format:
# 80153210 000000f8 T global_sym
# 80153210 t static_sym
tokens = line.split()
if len(tokens) >= 3 and len(tokens[-2]) == 1:
addr = int(tokens[0], 16)
if addr & 0x80000000 and tokens[-2].lower() == "t":
symNames.append(MapEntry(tokens[-1], addr))
f1 = open(sys.argv[2], "wb+")
f2 = open(sys.argv[3], "wb+")
symNames.sort(key=lambda x: x.addr)
off = 0
for x in symNames:
f1.write(struct.pack(structDef, x.addr, off, len(x.name), 0))
f2.write(struct.pack(">%ds" % x.strlen, bytes(x.name, encoding="ascii")))
off += x.strlen
f1.close()
f2.close()
# print('\n'.join([str(hex(x.addr)) + " " + x.name for x in symNames]))