clang generates invalid debug symbols

[kelbon]

steps to reproduce:

https://github.com/kelbon/clinok

build with CLINOK_ENABLE_EXAMPLES=ON and run example in debugger (i reproduced on Windows + vs code)

examples/main.cpp:30

 cli::options opt = cli::parse(argc, argv, ec);

goes into

include/clinok/cli.hpp:413, where debugger segfaults due invalid symbols

I'm not competent enough to say which specific symbol is incorrect, but incorrect debug symbols are the most likely scenario for why this happens, given what the code does with #include

[shafik]

Can you provide the message if any?

[kelbon]

Can you provide the message if any?

there are no messages

[shafik]

Can you provide the message if any?

there are no messages

So how do you know it is an invalid symbol? There is not a lot to go on here? Are you using LLDB? Right now I don't think there is enough to do anything with.

[kelbon]

Can you provide the message if any?

there are no messages

So how do you know it is an invalid symbol? There is not a lot to go on here? Are you using LLDB? Right now I don't think there is enough to do anything with.

Unfortunately, I know very few ways to debug a debugger, so I can’t point out the exact location of the invalid characters or say for sure which characters are wrong.
But I do know that this code has broken clangd more than once; overall it’s quite atypical, so it’s very likely that the bug is in the debug symbols.

And i dont use LLDB