Hey there! 👋

I'm playing around with cargo-embed and gdb, and I often get this warning:

```
warning: (Internal error: pc 0x100 in read in CU, but not in symtab.)
```
This often happens when showing code from core.
Am I correct that this means the instruction at `0x100` is in the CU (compilation unit?) but not in the debug symbols? If so, how do include them?