Native stack merging fails for Python 3.14 tail-call symbols without the .llvm. suffix #371

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

PyStack fails to merge Python and native stacks when Python 3.14 uses the tail-call interpreter and its native symbols do not have a .llvm. suffix.

Expected Behavior

No response

Steps To Reproduce

Merge python and native stack successfully.

Environment

• Linux x86_64, with ptrace permitted
• PyStack 1.7.0
• uv 0.12.23
• CPython 3.14.8, python-build-standalone 20261003
• Built with --with-tail-call-interp and --with-lto=full

Minimal reproducer

Save as repro.py:

import os
import subprocess

subprocess.run(
    ["pystack", "remote", "--native", "--no-color", str(os.getpid())]
)

Install Python and run:

uv python install 3.14.8
uv run --no-project --python 3.14.8 --with pystack==1.7.0 python repro.py

Actual behavior

Unable to merge native stack due to insufficient native information

Pystack Version

1.7.0

Python Version

3.14

Linux distribution

Debian

Anything else?

No response