Arch Linux

horades

Member

Registered: 2021-06-07

Posts: 2

gdb: no debugging symbols found in python

Hello everyone.

I would like to use `gdb` in order to debug a python script returning a `Segmentation fault`.

However, when I try to use gdb with python

gdb --args python myscript.py

it does not find debugging symbols

Reading symbols from python...
(No debugging symbols found in python)
(gdb) 

I'm using python3.9 (/usr/bin/python3.9) provided by Arch Linux.

I have tried to install python-dbg from the AUR in order to fix this issue.
But the installation failed because of conflicting files

yay -S python-dbg
(...)
(1/1) checking for file conflicts                                                                                                              [----------------------------------------------------------------------------------------] 100%
error: failed to commit transaction (conflicting files)
python-dbg: /usr/bin/2to3 exists in filesystem (owned by python)
python-dbg: /usr/bin/idle exists in filesystem (owned by python)
python-dbg: /usr/bin/idle3 exists in filesystem (owned by python)
python-dbg: /usr/bin/pydoc exists in filesystem (owned by python)
python-dbg: /usr/bin/pydoc3 exists in filesystem (owned by python)
python-dbg: /usr/bin/python exists in filesystem (owned by python)
python-dbg: /usr/bin/python-config exists in filesystem (owned by python)
python-dbg: /usr/bin/python3 exists in filesystem (owned by python)
python-dbg: /usr/bin/python3-config exists in filesystem (owned by python)
python-dbg: /usr/lib/pkgconfig/python3-embed.pc exists in filesystem (owned by python)
python-dbg: /usr/lib/pkgconfig/python3.pc exists in filesystem (owned by python)
python-dbg: /usr/share/man/man1/python3.1.gz exists in filesystem (owned by python)

I'm using gdb10.2 provided by Arch Linux

gdb --configuration
This GDB was configured as follows:
   configure --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
             --with-auto-load-dir=$debugdir:$datadir/auto-load
             --with-auto-load-safe-path=$debugdir:$datadir/auto-load
             --with-expat
             --with-gdb-datadir=/usr/share/gdb (relocatable)
             --with-jit-reader-dir=/usr/lib/gdb (relocatable)
             --without-libunwind-ia64
             --with-lzma
             --without-babeltrace
             --without-intel-pt
             --with-mpfr
             --without-xxhash
             --with-python=/usr (relocatable)
             --with-python-libdir=/usr/lib (relocatable)
             --with-debuginfod
             --with-guile
             --enable-source-highlight
             --with-separate-debug-dir=/usr/lib/debug (relocatable)
             --with-system-gdbinit=/etc/gdb/gdbinit

I have searched a solution to this matter on the Internet (hence, on wiki.archlinux), but I haven't found one.

Any help and explanation are welcome.

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,772

Re: gdb: no debugging symbols found in python

In the future, If you wish a thread moved, please ask the moderators to move it using the Report link.  Thanks.

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Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
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ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,772

Re: gdb: no debugging symbols found in python

My suggestion would be to grab the package used to build python (https://github.com/archlinux/svntogit-p … thon/trunk) and change the PKGBUILD so as to enable debug.  Install it as if it were an AUR package.

---

Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way