Re: [Python-Dev] GDB macros in Misc/gdbinit are broken

2017年2月28日 12:50:04 -0800

2017年02月28日 20:38 GMT+01:00 Alexander Belopolsky
<[email protected]>:
> First, I had to rename python-gdb.py to python3.6-gdb.py to make it load.
There is nothing specific to Python here, the file command of gdb (or
gdb file) tries to load "file-gdb.py". So if your program is called
python3.6, gdb looks for python3.6-gdb.py, yeah.
> Then running backtrace gave me a bunch of error messages:
> (...)
> except gdb.error:
> AttributeError: 'module' object has no attribute 'error'
Oh, I never tried python-gdb.py on RHEL. Sadly, I know that the Python
binding of gdb changes depending on the gdb version, but I also
suspect that it changes depending on the OS! I'm quite sure that
Fedora backports gdb changes for its Python API.
I'm only using python-gdb.py on Fedora, usually even the latest Fedora
version. Fedora always has bleeding edge versions of development
tools!
It shouldn't be hard to catch this "except gdb.error:" line. We should
find the right exception and patch libpython.py.
> It looks like there is a mismatch between python-gdb.py and the gdb module
> that I assume comes with gdb.
python-gdb.py (libpython.py) should work on any gdb version. It
shouldn't be hard to support multiple gdb versions in same code base,
we already support Python 2 and Python 3 in the same code base!
(Depending on the OS and OS version, gdb may use Python 2 or Python 3
to run python-gdb.py, this script is run by gdb, not by test debugged
Python binary! ;-))
Victor
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