[PATCH] D83289: [BPF] Emit unknown types as byte arrays

[Ilya Leoshkevich via Phabricator via llvm-commits]

iii updated this revision to Diff 277007.
iii added a comment.

I've added the warning. On my s390 it looks like this when building
kselftests:

  CLANG    kselftest/bpf/tools/build/bpftool/pid_iter.bpf.o

Type `float` is not supported by BTF, emitting `unsigned char[4]` instead
Type `double` is not supported by BTF, emitting `unsigned char[8]` instead

I don't think existing progs are using any of these fields, but it
might be beneficial to be able to at least memcpy their contents to
e.g. a perf event buffer for later inspection.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D83289/new/

https://reviews.llvm.org/D83289

Files:
  llvm/lib/Target/BPF/BTFDebug.cpp
  llvm/lib/Target/BPF/BTFDebug.h
  llvm/test/CodeGen/BPF/BTF/double.ll
  llvm/test/CodeGen/BPF/BTF/float.ll

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