[RFC] Identify Func Signature Change in LLVM Compiled Kernel Image

LLVM Project
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9

Thanks for giving it a try and sharing your LLDB session. In your example you’ve said:

So the difference is

  * frame #0: 0x0000555555555161 ex2`inc(x=41, y=<unavailable>) at ex2.c:5:18 [inlined]
    frame #1: 0x0000555555555161 ex2`inc at ex2.c:0

vs.

  * frame #0: 0x0000555555555161 ex2`inc(x=41, y=<unavailable>) at ex2.c:5:18

I think It does not impact debugger result itself although frame dump is slightly
different.

That’s the kind of difference I was concerned about. You’ve said that it doesn’t impact the debugger, but IMO that’s a significant impact as the backtrace is incorrect and the top frame is described as “inlined”. Both could cause much confusion to someone debugging their code.