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From: "bp at alien8 dot de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/106571] Implement -Wsection diag
Date: Wed, 10 Aug 2022 15:11:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106571

--- Comment #5 from Boris <bp at alien8 dot de> ---
(In reply to Michael Matz from comment #4)
> Boris: what does DECLARE_PER_CPU() expand into?  Are there other attribut=
es
> that could be usefully checked for mismatch between decl and def?

Unfortunately,

DECLARE_PER_CPU(u64, x86_spec_ctrl_current);

expands only to:

extern __attribute__((section(".data..percpu" ""))) __typeof__(u64)
x86_spec_ctrl_current;=