Support Python 3.11 decompilation #452
Comments
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You're right, not sure why I marked those... Fixed now, thanks |
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the opcodes but anyways I wanted to ask you, how to do work on this project because the .gitignore file doesn't ignore visual studio files, then i see a lot of changes in the GitHub Desktop and its confusing. and also is there a way to communicate you about things in this project? i mean if for example i want to change all stack.top(); stack.pop(); lines to just call a function are you gonna approve this? |
Thanks, fixed (again)
Personally, I do most of my development on it (in the rare opportunities that I have time to do so) from Linux or MSYS2, since that's where the test suite stuff works. However, more generally, when I'm using MSVC with CMake projects, I'll confine the build to a single directory that I can ignore entirely with a line in my local
The short history there is just that the stack was originally a |
ohh the .git/info/exclude and confine to one dir was the trick i guess, thank you very much, and i mean to change the stack.top / pop, because there is a function in |
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Please support: JUMP-BACKWARD |
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@sffool could you attach a sample .pyc with that opcode? |
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Tomorrow I will send a .pyc file that I want to decompile in an email.
Thank you！My hero.
…---Original---
From: ***@***.***>
Date: Wed, Mar 13, 2024 22:45 PM
To: ***@***.***>;
Cc: ***@***.******@***.***>;
Subject: Re: [zrax/pycdc] Support Python 3.11 decompilation (Issue #452)
@sffool could you attach a sample .pyc with that opcode?
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Please stop recommending people attach .pyc files... They are not useful. A much more useful recommendation is to provide a (small) bit of python source that compiles to the opcodes in question, so it can be used as a test case. |
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I'm sorry, I don't know how to write Python.
…---Original---
From: "Michael ***@***.***>
Date: Wed, Mar 13, 2024 23:22 PM
To: ***@***.***>;
Cc: ***@***.******@***.***>;
Subject: Re: [zrax/pycdc] Support Python 3.11 decompilation (Issue #452)
Please stop recommending people attach .pyc files... They are not useful. A much more useful recommendation is to provide a (small) bit of python source that compiles to the opcodes in question, so it can be used as a test case.
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@zrax OK, but usually having pyc you could |
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I have been exploring the opcodes and what generates them, I know it aint much, but for me it was a nice way to have a list of the opcodes and their main functionality on when they are introduced, hope it can help. import dis
import asyncio
class ContextManager:
def __enter__(self):
print("Entering context manager")
return self
def __exit__(self, exc_type, exc_val, exc_tb):
print("Exiting context manager")
def BEFORE_WITH():
with ContextManager():
print("Inside context manager")
def PUSH_EXC_INFO():
try:
raise Exception("This is an exception")
except Exception as e:
raise e
def CHECK_EXC_MATCH():
try:
raise ValueError("This is a ValueError")
except (ValueError, TypeError) as e:
print(f"Caught exception: {e}")
async def async_generator():
await asyncio.sleep(0)
yield 1
await asyncio.sleep(0)
yield 2
async def use_async_generator():
async_gen = async_generator()
try:
value = await async_gen.asend(None)
print(value)
value = await async_gen.asend(None)
print(value)
finally:
await async_gen.aclose()
def PREP_RERAISE_STAR():
try:
something = 1/1
raise ValueError("This is a ValueError")
except ValueError as e:
try:
raise Exception("This is an Exception") from e
except Exception:
print("Caught the re-raised exception")
def SWAP():
my_array = [1, 2, 3, 4, 5]
i = 1
j = 3
my_array[i], my_array[j] = my_array[j], my_array[i]
def COPY():
a = 10
b = 10
c = 10
return a == b == c
def subgenerator():
yield 1
yield 2
yield 3
def SEND():
yield from subgenerator()
def POP_JUMP_FORWARD_IF_NOT_NONE(item): # AND POP_JUMP_FORWARD_IF_NONE
if item is None:
print('case 1')
else:
print('case 2')
while item is None:
pass
async def async_function():
await asyncio.sleep(1)
return 'Hello, World!'
async def GET_AWAITABLE():
result = await async_function()
print(result)
asyncio.run(GET_AWAITABLE())
def generator():
yield 1
yield 2
yield 3
def JUMP_BACKWARD_NO_INTERRUPT():
yield from generator()
gen = JUMP_BACKWARD_NO_INTERRUPT()
print(next(gen))
print(next(gen))
print(next(gen))
def JUMP_BACKWARD():
iterable = [1, 2, 3]
for item in iterable:
pass
while True:
break
def COPY_FREE_VARS():
a = 10
def inner_function():
nonlocal a
print(a)
inner_function()
def POP_JUMP_BACKWARD_IF_NOT_NONE():
item = None
while item is not None:
pass
def POP_JUMP_BACKWARD_IF_NONE():
item = None
while item is None:
pass
def POP_JUMP_BACKWARD_IF_FALSE():
cond = False
while not cond:
pass
def POP_JUMP_BACKWARD_IF_TRUE():
cond = True
while cond:
cond
if __name__ == "__main__":
# print("BEFORE_WITH")
# dis.dis(BEFORE_WITH) # BEFORE_WITH
# print("PUSH_EXC_INFO")
# dis.dis(PUSH_EXC_INFO) # PUSH_EXC_INFO
# print("CHECK_EXC_MATCH")
# dis.dis(CHECK_EXC_MATCH) # CHECK_EXC_MATCH
# print("RETURN_GENERATOR | And ASYNC_GEN_WRAP when casted with asyncio.run")
# dis.dis(use_async_generator()) # RETURN_GENERATOR | And ASYNC_GEN_WRAP when casted with asyncio.run
# print("PREP_RERAISE_STAR")
# dis.dis(PREP_RERAISE_STAR())
# print("SWAP")
# dis.dis(SWAP)
#print("COPY")
#dis.dis(COPY)
#print("SEND")
#dis.dis(SEND)
#print("POP_JUMP_FORWARD_IF_NOT_NONE AND POP_JUMP_FORWARD_IF_NONE")
#dis.dis(POP_JUMP_FORWARD_IF_NOT_NONE) # AND POP_JUMP_FORWARD_IF_NONE
#print("GET_AWAITABLE")
#dis.dis(GET_AWAITABLE) # GET_AWAITABLE
#print("JUMP_BACKWARD_NO_INTERRUPT")
#dis.dis(JUMP_BACKWARD_NO_INTERRUPT) # JUMP_BACKWARD_NO_INTERRUPT
#print("JUMP_BACKWARD")
#dis.dis(JUMP_BACKWARD) # JUMP_BACKWARD
#print("COPY_FREE_VARS")
#dis.dis(COPY_FREE_VARS) # COPY_FREE_VARS
#print("POP_JUMP_BACKWARD_IF_NOT_NONE")
#dis.dis(POP_JUMP_BACKWARD_IF_NOT_NONE) # POP_JUMP_BACKWARD_IF_NOT_NONE
#print("POP_JUMP_BACKWARD_IF_NONE")
#dis.dis(POP_JUMP_BACKWARD_IF_NONE) # POP_JUMP_BACKWARD_IF_NONE
#print("POP_JUMP_BACKWARD_IF_FALSE")
#dis.dis(POP_JUMP_BACKWARD_IF_FALSE) # POP_JUMP_BACKWARD_IF_FALSE
#print("POP_JUMP_BACKWARD_IF_TRUE")
#dis.dis(POP_JUMP_BACKWARD_IF_TRUE) # POP_JUMP_BACKWARD_IF_TRUE |
possible solution #472 |
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Unsupported opcode: COPY Please add support for it. I can provide .pyc file if you want. |
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Unsupported opcode: CALL_FUNCTION_EX |
Also facing this error ! |
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I found an amazing method to deal the unsupported opcodes. I get the assembly codes with pycdas and then I give them to gpt-4o and let gpt-4o reverse them to python code. It did it! |
Tasks
CACHEPUSH_NULLPUSH_EXC_INFOCHECK_EXC_MATCHCHECK_EG_MATCHBEFORE_WITHRETURN_GENERATORASYNC_GEN_WRAPPREP_RERAISE_STARSWAPPOP_JUMP_FORWARD_IF_FALSEPOP_JUMP_FORWARD_IF_TRUECOPYBINARY_OPSENDPOP_JUMP_FORWARD_IF_NOT_NONEPOP_JUMP_FORWARD_IF_NONEGET_AWAITABLEJUMP_BACKWARD_NO_INTERRUPTMAKE_CELLJUMP_BACKWARDCOPY_FREE_VARSRESUMEPRECALLCALLKW_NAMESPOP_JUMP_BACKWARD_IF_NOT_NONEPOP_JUMP_BACKWARD_IF_NONEPOP_JUMP_BACKWARD_IF_FALSEPOP_JUMP_BACKWARD_IF_TRUEThe text was updated successfully, but these errors were encountered: