SouraVX added a comment.
In D70696#1765675 <https://reviews.llvm.org/D70696#1765675>, @yonghong-song
wrote:
> @probinson for the question,
>
> > Does bpf require debug info for the declaration of global_var in noref.c ?
>
> No, bpf only cares the referenced external global variables. So my current
> implementation does not emit debug info
> for external global_var in noref.c.
>
> It is just strange that gcc 7.3.1 (did not test, but maybe later gcc versions
> as well) emits the debuginfo (encoded in dwarf)
> even if the external variable is not used in the current compilation unit.
> Not sure what is the rationale behind it.
I'm using gcc 9.2.0 -- it's generating, for `noref.c`{Not used in compilation
unit} case also.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D70696/new/
https://reviews.llvm.org/D70696
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