ponydos/extract_symbols.py
2023-03-20 20:18:49 +02:00

61 lines
1.3 KiB
Python

import sys
syscalls = {
'open_file': None,
'modify_sectors': None,
'draw_rect': None,
}
variables = {
'window_chain_head': None,
'redraw': None,
'memory_allocation_map': None,
}
if len(sys.argv) != 3:
print(f'Usage: {sys.argv[0]} outfile infile', file=sys.stderr)
sys.exit(1)
outfile = sys.argv[1]
infile = sys.argv[2]
with open(infile, 'r') as f:
header = f.read()
header = f'; This is from {infile}\n' + header
mapfile = []
while True:
try:
line = input()
except EOFError:
break
mapfile.append(line)
section = None
for line in mapfile:
line = line.split()
if len(line) == 3:
address, _, name = line
if name in syscalls:
syscalls[name] = int(address, 16)
if name in variables:
variables[name] = int(address, 16)
header += f'\n;This was automatically generated\n'
for syscall, address in syscalls.items():
if address is None:
print(f'{sys.argv[0]}: Error: syscall {syscall} not found', file=sys.stderr)
sys.exit(1)
header += f'SYS_{syscall.upper()} equ 0x{address:x}\n'
header += '\n'
for variable, address in variables.items():
if address is None:
print(f'{sys.argv[0]}: Error: global {variable} not found', file=sys.stderr)
sys.exit(1)
header += f'GLOBAL_{variable.upper()} equ 0x{address:x}\n'
with open(outfile, 'w') as f:
f.write(header)