Bug report

Bug description:

When compiling with LTO and other aggressive optimization levels, is possible that the compiler will optimise away globals containing debug offsets. This is currently happening in https://buildbot.python.org/#/builders/125/builds/6895 for the new AsyncioDebug section, making the test fail because the information is not burned in the binary.

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-129223: Do not allow the compiler to optimise away symbols for debug sections #129225
• gh-129223: Raise KeyError in search_map_for_section() if not found #129262