jit error

[qq415338269]

I am trying to use miasm's simulation and symbolic execution on Windows, but I am encountering errors. I have already installed the required dependencies and compiled LLVM. What should I do? I have tried installing miasm 0.1.3 and 0.1.5 using pip, but both failed. I also attempted to download 0.1.5 and compile it myself, but during compilation, I received a warning that the miasm jit extensions were not compiled. Could you please help me resolve this issue? Here is the error message I am receiving:
Using c:\users\41533\appdata\roaming\python\python39\site-packages
Finished processing dependencies for miasm==0.1.5.dev41
build all
build
WARNING: miasm jit extensions were not compiled, details:
Could not find a suitable Clang/LLVM installation. You can download LLVM from https://releases.llvm.org
Alternatively you can select the 'C++ Clang-cl build tools' in the Visual Studio Installer
Could not find cl.exe and/or link.exe in the PATH, try building miasm from a Visual Studio command prompt
More information at: https://wiki.python.org/moin/WindowsCompilers

Traceback (most recent call last):
File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\miasm\jitter\jitload.py", line 219, in init
from miasm.jitter.arch import JitCore_x86 as jcore
ImportError: cannot import name 'JitCore_x86' from 'miasm.jitter.arch' (C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\miasm\jitter\arch_init_.py)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "d:\Code\TestProject\MiasmTestProject\AssemblingDisassembling.py", line 25, in
jitter = machine.jitter(loc_db)
File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\miasm\arch\x86\jit.py", line 76, in init
Jitter.init(self, Lifter_X86_32(loc_db), *args, **kwargs)
File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\miasm\jitter\jitload.py", line 238, in init
raise RuntimeError('Unsupported jit arch: %s' % arch_name)
RuntimeError: Unsupported jit arch: x86

[qq415338269]

I am using debug versions of LLVM 18.1 and 13.0.And I can check the versions of LLVM and Clang in the CMD window. I have already set the LLVM environment variables.

[W0ni]

Hello,

It seems miasm could find LLVM in the PATH. Is your PATH envvar correct?

Alternatively, you can still use the python jitter, which doesn't require LLVM.

[greenozon]

@qq415338269 I hit right the same issue on Windows
in order to address this question I did the following:

1. installed LLVM-18.1.8-win64.exe from here
2. the install path was intentionally short: c:\Dev\LLVM
3. I studied setup.py code and figured out that it looks for llvm in different ways, I did not want to put llvm binaries into PATH, so I followed the windows registry lookup way, for that I've created a .reg file with the following contents:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\LLVM]
"LLVM"="c:\\Dev\\LLVM"

and executed it, so it landed into registry
4. executed MSVS bat file to allow it to see cl.exe as well as link.exe:
c:\Dev\VS2019\VC\Auxiliary\Build\vcvars64.bat
5. after that the python setup.py build successfully finished all the steps including native code compilation into .pyd modules