Subject: Re: "kernel ade access" oops on LoongArch
To:     Xi Ruoyao <xry111@xry111.site>
References: <1e6f4d35946e4e2e7c7f5dcc7b69d5e609de8184.camel@xry111.site>
 <2e902dfa-cb84-7ef0-6b50-02b16354a139@loongson.cn>
 <511d385675ea7a846ff791974c6ae7feeeec2589.camel@xry111.site>
Cc:     loongarch@lists.linux.dev, Huacai Chen <chenhuacai@kernel.org>,
        WANG Xuerui <kernel@xen0n.name>, linux-kernel@vger.kernel.org
From:   Youling Tang <tangyouling@loongson.cn>
Message-ID: <9a70e89c-0f3b-0660-501e-3292e410cfd8@loongson.cn>
Date:   Wed, 15 Feb 2023 15:23:02 +0800
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On 02/15/2023 01:35 PM, Xi Ruoyao wrote:
> On Wed, 2023-02-15 at 12:52 +0800, Youling Tang wrote:
>> ../stdlib/stdlib.h:141:8: error: ‘_Float32’ does not name a type
>>    141 | extern _Float32 strtof32 (const char *__restrict __nptr,
>>        |        ^~~~~~~~
>
> 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.
>

Tested on Loongson-3C5000L-LL machine, using CLFS7.3 system.

$ gcc -v
gcc version 13.0.0 20221018 (experimental) (GCC)

# make check -j32
/home/loongson/build_glibc/math/test-tgmath3-atan2.c: 
在函数‘test_atan2_84’中:
/home/loongson/build_glibc/math/test-tgmath3-atan2.c:903:59: 
错误：conflicting types for ‘var__Float32x’; have ‘double’
   903 |   extern typeof (atan2 (vol_var__Float32x, vol_var_char)) 
var__Float32x __attribute__ ((unused));
       | 
^~~~~~~~~~~~~

There was a build error in make check, so only tst-mallocfork3-
malloc-check was tested separately.

# make test t=malloc/tst-mallocfork3-malloc-check
make[2]: 离开目录“/home/loongson/glibc/malloc”
PASS: malloc/tst-mallocfork3-malloc-check
original exit status 0
info: signals received during fork: 301
info: signals received during free: 1693
info: signals received during malloc: 119
make[1]: 离开目录“/home/loongson/glibc”

A total of five tests are PASS, and the serial port does not display
CallTrace.

Youling.