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From: Tiezhu Yang <yangtiezhu@loongson.cn>
To: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Huacai Chen <chenhuacai@kernel.org>,
	Nathan Chancellor <nathan@kernel.org>,
	loongarch@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 2/3] objtool/LoongArch: Fix unreachable instruction warnings about EFISTUB
Date: Thu, 4 Sep 2025 10:18:12 +0800	[thread overview]
Message-ID: <ccbb40c1-5f2d-77e9-e8d2-52f2fdbad645@loongson.cn> (raw)
In-Reply-To: <wt4qpgi5isj5m6wq33pomvm6borvafuzktekc7lgtoitscar5q@brixzj3lccbw>

On 2025/9/4 上午3:19, Josh Poimboeuf wrote:
> On Mon, Sep 01, 2025 at 04:39:29PM +0800, Tiezhu Yang wrote:
>> On 2025/9/1 下午4:19, Peter Zijlstra wrote:
>>> On Mon, Sep 01, 2025 at 03:21:55PM +0800, Tiezhu Yang wrote:
>>>> When compiling with LLVM and CONFIG_LTO_CLANG is set, there exist the
>>>> following objtool warnings:

...

>> Josh suggested to do something to put these instructions in the data
>> section, but as said in the previous reply, it needs to modify the link
>> process and seems too complicated and expensive for this warning to some
>> extent.
>>
>> So I did this change for objtool.
> 
> I don't like this workaround either, how exactly is it complicated and
> expensive to put the data in a data section?

I can put them in a data section in the next version, this is
reasonable.

Thanks,
Tiezhu


  reply	other threads:[~2025-09-04  2:18 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-01  7:21 [PATCH v1 0/3] Fix objtool warnings if LTO is enabled for LoongArch (Part 2) Tiezhu Yang
2025-09-01  7:21 ` [PATCH v1 1/3] objtool/LoongArch: Fix fall through warning about efi_boot_kernel() Tiezhu Yang
2025-09-01  8:16   ` Peter Zijlstra
2025-09-01  8:31     ` Tiezhu Yang
2025-09-03 19:17       ` Josh Poimboeuf
2025-09-04  2:15         ` Tiezhu Yang
2025-09-04  2:17         ` Huacai Chen
2025-09-04 17:26           ` Josh Poimboeuf
2025-09-05  4:33             ` Huacai Chen
2025-09-05  9:53               ` Tiezhu Yang
2025-09-01  7:21 ` [PATCH v1 2/3] objtool/LoongArch: Fix unreachable instruction warnings about EFISTUB Tiezhu Yang
2025-09-01  8:19   ` Peter Zijlstra
2025-09-01  8:39     ` Tiezhu Yang
2025-09-03 19:19       ` Josh Poimboeuf
2025-09-04  2:18         ` Tiezhu Yang [this message]
2025-09-04  2:21           ` Huacai Chen
2025-09-04  3:50             ` Tiezhu Yang
2025-09-04  3:59               ` Huacai Chen
2025-09-04 17:39                 ` Josh Poimboeuf
2025-09-04 21:46                   ` Josh Poimboeuf
2025-09-05  4:36                     ` Huacai Chen
2025-09-05 16:04                       ` Josh Poimboeuf
2025-09-09  3:59                         ` Tiezhu Yang
2025-09-09  4:10                           ` Huacai Chen
2025-09-09 16:05                             ` Josh Poimboeuf
2025-09-10  6:55                               ` Huacai Chen
2025-09-11  3:23                                 ` Josh Poimboeuf
2025-09-11  8:28                                   ` Huacai Chen
2025-09-01  7:21 ` [PATCH v1 3/3] LoongArch: Fix unreachable instruction warnings about entry functions Tiezhu Yang
2025-09-01  8:20   ` Peter Zijlstra
2025-09-03 19:22   ` Josh Poimboeuf
2025-09-04  1:26     ` Jinyang He
2025-09-04  3:18     ` Tiezhu Yang
2025-09-04 17:16       ` Josh Poimboeuf
2025-09-02 15:43 ` [PATCH v1 0/3] Fix objtool warnings if LTO is enabled for LoongArch (Part 2) Huacai Chen

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