[PATCH] D71290: [BPF] put not-section-attribute externs into BTF ".extern" data section

[Yonghong Song via Phabricator via llvm-commits]

yonghong-song created this revision.
yonghong-song added reviewers: ast, anakryiko.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.

Currently for extern variables with section attribute, those
BTF_KIND_VARs will not be placed in any DataSec. This is
inconvenient as any other generated BTF_KIND_VAR belongs to
one DataSec. This patch put these extern variables into
".extern" section so bpf loader can have a consistent
processing mechanism for all data sections and variables.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D71290

Files:
  llvm/lib/Target/BPF/BTFDebug.cpp
  llvm/test/CodeGen/BPF/BTF/extern-var-func-weak.ll
  llvm/test/CodeGen/BPF/BTF/extern-var-func.ll
  llvm/test/CodeGen/BPF/BTF/extern-var-struct-weak.ll
  llvm/test/CodeGen/BPF/BTF/extern-var-struct.ll

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