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Subject: Re: [PATCH v4 0/4] LoongArch: Support new relocation types
From:   Xi Ruoyao <xry111@xry111.site>
To:     Youling Tang <tangyouling@loongson.cn>, loongarch@lists.linux.dev
Cc:     linux-kernel@vger.kernel.org, WANG Xuerui <kernel@xen0n.name>,
        Huacai Chen <chenhuacai@kernel.org>,
        Jinyang He <hejinyang@loongson.cn>,
        Lulu Cheng <chenglulu@loongson.cn>
Date:   Fri, 29 Jul 2022 19:45:07 +0800
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On Fri, 2022-07-29 at 18:36 +0800, Xi Ruoyao wrote:

> The relocation against local percpu variable is broken up.=C2=A0 I'll try
> to fix it.

Hmm... The problem is the "addresses" of per-cpu symbols are faked: they
are actually offsets from $r21.  So we can't just load such an offset
with PCALA addressing.

It looks like we'll need to introduce an attribute for GCC to make an=20
variable "must be addressed via GOT", and add the attribute into
PER_CPU_ATTRIBUTES.

--=20
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University