provide slightly meaningless _start symbol for boot_stage2 to make LLVM lld happy

[kilograham]

fixes #1813

[armandomontanez]

ENTRY(_stage2_boot) should do the trick and might have slightly more clear intent.

[armandomontanez]

Also side note, I'm not seeing any declarations of an .entry section in the codebase, am I missing something or is that something that could be cleaned up?

[kilograham]

ENTRY(_stage2_boot) should do the trick and might have slightly more clear intent.

yeah, i thought about that, but there is no requirement to provide that symbol... we do always enter the image at the beginning

[kilograham]

Also side note, I'm not seeing any declarations of an .entry section in the codebase, am I missing something or is that something that could be cleaned up?

indeed; i noticed that too, but didn't dig too deeply as to why it was there

[kilograham]

^ feel free to open separate issues/PRs