python 3.13 gdb extension does not work with optimized build

[kasium]

Bug report

Bug description:

When using the python gdb extention python-gdb.py on an optimized python 3.13 installation, gdb shows no backtrace:

Reading symbols from .pyenv/versions/3.13.0/bin/python...
Attaching to program: .pyenv/versions/3.13.0/bin/python, process 53537
Reading symbols from .pyenv/versions/3.13.0/lib/libpython3.13.so.1.0...
Reading symbols from /lib64/libpthread.so.0...
(No debugging symbols found in /lib64/libpthread.so.0)
Reading symbols from /lib64/libdl.so.2...
(No debugging symbols found in /lib64/libdl.so.2)
Reading symbols from /lib64/libutil.so.1...
(No debugging symbols found in /lib64/libutil.so.1)
Reading symbols from /lib64/libm.so.6...
(No debugging symbols found in /lib64/libm.so.6)
Reading symbols from /lib64/libc.so.6...
(No debugging symbols found in /lib64/libc.so.6)
Reading symbols from /lib64/ld-linux-x86-64.so.2...
(No debugging symbols found in /lib64/ld-linux-x86-64.so.2)
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/readline.cpython-313-x86_64-linux-gnu.so...
Reading symbols from /lib64/libreadline.so.7...
(No debugging symbols found in /lib64/libreadline.so.7)
Reading symbols from /lib64/libtinfo.so.6...
(No debugging symbols found in /lib64/libtinfo.so.6)
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/_opcode.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/unicodedata.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/select.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/_struct.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/termios.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/fcntl.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/_curses.cpython-313-x86_64-linux-gnu.so...
Reading symbols from /lib64/libncursesw.so.6...
(No debugging symbols found in /lib64/libncursesw.so.6)
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
0x00007f798865ea53 in poll () from /lib64/libc.so.6
--Type <RET> for more, q to quit, c to continue without paging--
Missing separate debuginfos, use: zypper install glibc-debuginfo-2.31-150300.89.2.x86_64 libncurses6-debuginfo-6.1-150000.5.27.1.x86_64 libreadline7-debuginfo-7.0-150400.27.3.2.x86_64
(gdb) py-bt
Traceback (most recent call first):
  (unable to read python frame information)
  <built-in method exec of module object at remote 0x7f7988499800>
  (unable to read python frame information)

If the same setup is used but python is compiled in non-optimized mode (just don't set the CC and PYTHON_CONFIGURE_OPTS env variable), the backtrace works as expected. Same applies for python 3.12 and lower

Reading symbols from .pyenv/versions/3.13.0/bin/python...
Attaching to program: .pyenv/versions/3.13.0/bin/python, process 79951
Reading symbols from .pyenv/versions/3.13.0/lib/libpython3.13.so.1.0...
Reading symbols from /lib64/libpthread.so.0...
(No debugging symbols found in /lib64/libpthread.so.0)
Reading symbols from /lib64/libdl.so.2...
(No debugging symbols found in /lib64/libdl.so.2)
Reading symbols from /lib64/libutil.so.1...
(No debugging symbols found in /lib64/libutil.so.1)
Reading symbols from /lib64/libm.so.6...
(No debugging symbols found in /lib64/libm.so.6)
Reading symbols from /lib64/libc.so.6...
(No debugging symbols found in /lib64/libc.so.6)
Reading symbols from /lib64/ld-linux-x86-64.so.2...
(No debugging symbols found in /lib64/ld-linux-x86-64.so.2)
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/readline.cpython-313-x86_64-linux-gnu.so...
Reading symbols from /lib64/libreadline.so.7...
(No debugging symbols found in /lib64/libreadline.so.7)
Reading symbols from /lib64/libtinfo.so.6...
(No debugging symbols found in /lib64/libtinfo.so.6)
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/_opcode.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/unicodedata.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/select.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/_struct.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/termios.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/fcntl.cpython-313-x86_64-linux-gnu.so...
Reading symbols from .pyenv/versions/3.13.0/lib/python3.13/lib-dynload/_curses.cpython-313-x86_64-linux-gnu.so...
Reading symbols from /lib64/libncursesw.so.6...
(No debugging symbols found in /lib64/libncursesw.so.6)
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
0x00007f947f668a53 in poll () from /lib64/libc.so.6
--Type <RET> for more, q to quit, c to continue without paging--
Missing separate debuginfos, use: zypper install glibc-debuginfo-2.31-150300.89.2.x86_64 libncurses6-debuginfo-6.1-150000.5.27.1.x86_64 libreadline7-debuginfo-7.0-150400.27.3.2.x86_64
(gdb) py-bt
Traceback (most recent call first):
  File ".pyenv/versions/3.13.0/lib/python3.13/_pyrepl/unix_console.py", line 426, in wait
    or bool(self.pollob.poll(timeout))
  File ".pyenv/versions/3.13.0/lib/python3.13/_pyrepl/reader.py", line 756, in handle1
    self.console.wait(100)
  File ".pyenv/versions/3.13.0/lib/python3.13/_pyrepl/reader.py", line 801, in readline
    self.handle1()
  File ".pyenv/versions/3.13.0/lib/python3.13/_pyrepl/readline.py", line 389, in multiline_input
    return reader.readline()
  File ".pyenv/versions/3.13.0/lib/python3.13/_pyrepl/simple_interact.py", line 151, in run_multiline_interactive_console
    statement = multiline_input(more_lines, ps1, ps2)
  File ".pyenv/versions/3.13.0/lib/python3.13/_pyrepl/main.py", line 59, in interactive_console
    run_multiline_interactive_console(console)
  File ".pyenv/versions/3.13.0/lib/python3.13/_pyrepl/__main__.py", line 6, in <module>
    __pyrepl_interactive_console()
  <built-in method exec of module object at remote 0x7f947f4a5800>
  File "<frozen runpy>", line 88, in _run_code
  File "<frozen runpy>", line 198, in _run_module_as_main

Steps to reproduce

1. install pyenv incl. all OS packages which are needed
2. install gcc12
3. export CC="gcc-12"
4. export PYTHON_CONFIGURE_OPTS="--enable-shared --with-lto --enable-optimizations"
5. pyenv install 3.13.0
6. Open a new python3.13 shell using the just installed python and execute the following commands 6.1. import os 6.2. os.getpid() 6.3. while True: pass
7. Switch to another shell and execute gdb -q <path-to-pyenv>/versions/3.13.0/bin/python -p <pid>
8. Wait till gdb spins up and execute py-bt

OS: SUSE Linux Enterprise Server 15 SP4

CPython versions tested on:

3.13

Operating systems tested on:

Linux