[llvm-dev] Compiling linux with `clang -fbasic-block-sections=labels`

[A G via llvm-dev]

Hi,
I'm trying to build the linux kernel with *`clang
-fbasic-block-sections=labels`.*

I ran into this error:

/tmp/main-81886d.s: Assembler messages:
/tmp/main-81886d.s: Error: .size expression for .BB.set_reset_devices does
not evaluate to a constant
/tmp/main-81886d.s: Error: .size expression for .BB.debug_kernel does not
evaluate to a constant
/tmp/main-81886d.s: Error: .size expression for .BB.quiet_kernel does not
evaluate to a constant
/tmp/main-81886d.s: Error: .size expression for .BB.loglevel does not
evaluate to a constant

make kernelversion
5.10.0

clang version 11.1.0 (g... at github.com:llvm/llvm-project.git
1fdec59bffc11ae37eb51a1b9869f0696bfd5312)
Target: x86_64-unknown-linux-gnu


1. Can someone help me understand what this error means?
2. Is *clang-built-linux* a better place to ask this question?
3. Is there a workaround for this?

Thanks
Akshith
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