linux-kernel - Re: [PATCH v2 1/8] objtool/LoongArch: Enable objtool to be built

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Message-ID: <872be5af-26f0-34db-dedb-0d6ecb7092c0@loongson.cn>
Date:   Sat, 14 Oct 2023 10:12:17 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Huacai Chen <chenhuacai@...nel.org>
Cc:     Josh Poimboeuf <jpoimboe@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        loongarch@...ts.linux.dev, linux-kernel@...r.kernel.org,
        loongson-kernel@...ts.loongnix.cn
Subject: Re: [PATCH v2 1/8] objtool/LoongArch: Enable objtool to be built



On 10/10/2023 08:45 PM, Huacai Chen wrote:
> Hi, Tiezhu,
>
> On Mon, Oct 9, 2023 at 9:03 PM Tiezhu Yang <yangtiezhu@...ngson.cn> wrote:
>>
>> Add the minimal changes to enable objtool build on LoongArch,
>> most of the functions are stubs to only fix the build errors
>> when make -C tools/objtool.
>>
>> This is similar with commit e52ec98c5ab1 ("objtool/powerpc:
>> Enable objtool to be built on ppc").

...

>> diff --git a/tools/objtool/arch/loongarch/include/arch/special.h b/tools/objtool/arch/loongarch/include/arch/special.h
>> new file mode 100644
>> index 0000000..1a8245c
>> --- /dev/null
>> +++ b/tools/objtool/arch/loongarch/include/arch/special.h
>> @@ -0,0 +1,33 @@
>> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>> +#ifndef _OBJTOOL_ARCH_SPECIAL_H
>> +#define _OBJTOOL_ARCH_SPECIAL_H
>> +
>> +/*
>> + * See more info about struct exception_table_entry
>> + * in arch/loongarch/include/asm/extable.h
>> + */
>> +#define EX_ENTRY_SIZE 12
>> +#define EX_ORIG_OFFSET 0
>> +#define EX_NEW_OFFSET 4
> Other archs use tab for indentation in special.h
>

OK, thank you, will do it.

Thanks,
Tiezhu