Message-ID: <511d385675ea7a846ff791974c6ae7feeeec2589.camel@xry111.site>
Subject: Re: "kernel ade access" oops on LoongArch
From:   Xi Ruoyao <xry111@xry111.site>
To:     Youling Tang <tangyouling@loongson.cn>
Cc:     loongarch@lists.linux.dev, Huacai Chen <chenhuacai@kernel.org>,
        WANG Xuerui <kernel@xen0n.name>, linux-kernel@vger.kernel.org
Date:   Wed, 15 Feb 2023 13:35:56 +0800
In-Reply-To: <2e902dfa-cb84-7ef0-6b50-02b16354a139@loongson.cn>
References: <1e6f4d35946e4e2e7c7f5dcc7b69d5e609de8184.camel@xry111.site>
         <2e902dfa-cb84-7ef0-6b50-02b16354a139@loongson.cn>
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On Wed, 2023-02-15 at 12:52 +0800, Youling Tang wrote:
> ../stdlib/stdlib.h:141:8: error: =E2=80=98_Float32=E2=80=99 does not name=
 a type
> =C2=A0=C2=A0 141 | extern _Float32 strtof32 (const char *__restrict __npt=
r,
> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 |=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0 ^~~~~~~~

This is because Glibc expects GCC 13 to support _Float32, but early GCC
13 snapshots did not.

> /usr/bin/ld: /home/loongson/build_glibc/libc.a(dl-reloc-static-pie.o):
> in function `_dl_relocate_static_pie':
> /home/loongson/glibc/elf/dl-reloc-static-pie.c:44: undefined reference
> to `_DYNAMIC'

Oh, this one is my fault.  The check for compiler static PIE support was
not written correctly.  I'll fix it for Glibc later, but now you can
update GCC to the latest git master to proceed.
--=20
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University