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Incorrect detection of OS architecture #45

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MBradbury opened this issue Jul 31, 2024 · 0 comments · May be fixed by #46
Open

Incorrect detection of OS architecture #45

MBradbury opened this issue Jul 31, 2024 · 0 comments · May be fixed by #46

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@MBradbury
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I have an oddly setup machine in which pynrfjprog is being used to interact with nRF52840s.

I have a machine which is reported as aarch64.

Linux iris2 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr  3 17:24:16 BST 2023 aarch64 GNU/Linux

But actually is a 32 bit OS.

sudo dpkg-architecture -l
DEB_BUILD_ARCH=armhf
DEB_BUILD_ARCH_ABI=eabihf
DEB_BUILD_ARCH_BITS=32
DEB_BUILD_ARCH_CPU=arm
DEB_BUILD_ARCH_ENDIAN=little
DEB_BUILD_ARCH_LIBC=gnu
DEB_BUILD_ARCH_OS=linux
DEB_BUILD_GNU_CPU=arm
...

This causes a problem with loading the libhighlevelnrfjprog.so.

Traceback (most recent call last):
  File "/home/mbradbury/.local/lib/python3.9/site-packages/pynrfjprog/HighLevel.py", line 84, in __init__
    self.lib = ctypes.cdll.LoadLibrary(highlevel_nrfjprog_dll_path)
  File "/usr/lib/python3.9/ctypes/__init__.py", line 452, in LoadLibrary
    return self._dlltype(name)
  File "/usr/lib/python3.9/ctypes/__init__.py", line 374, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: /home/mbradbury/.local/lib/python3.9/site-packages/pynrfjprog/lib_arm64/libhighlevelnrfjprog.so: wrong ELF class: ELFCLASS64

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "...", line 242, in ...
    with pynrfjprog.HighLevel.API() as api:
  File "/home/mbradbury/.local/lib/python3.9/site-packages/pynrfjprog/HighLevel.py", line 86, in __init__
    raise APIError(
pynrfjprog.APIError.APIError: An error was reported by NRFJPROG DLL: -151 NRFJPROG_SUB_DLL_COULD_NOT_BE_OPENED. Got error OSError('/home/mbradbury/.local/lib/python3.9/site-packages/pynrfjprog/lib_arm64/libhighlevelnrfjprog.so: wrong ELF class: ELFCLASS64') for library at /home/mbradbury/.local/lib/python3.9/site-packages/pynrfjprog/lib_arm64/libhighlevelnrfjprog.s

This is because lib_armhf should be used instead of lib_arm64.

In https://github.com/NordicSemiconductor/pynrfjprog/blob/master/pynrfjprog/Parameters.py#L35 it looks like a similar check for sys.maxsize is needed in the arm and aarch branches.
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Detect lib directory correctly on 32-bit OSes and aarch64 MBradbury/pynrfjprog
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@MBradbury