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From: Xie Yuanbin <xieyuanbin1@huawei.com>
To: <egg12138@foxmail.com>, <pmladek@suse.com>, <linusw@kernel.org>,
	<jpoimboe@kernel.org>, <rostedt@goodmis.org>,
	<petr.pavlu@suse.com>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <linux-modules@vger.kernel.org>,
	<linux@armlinux.org.uk>, Xie Yuanbin <xieyuanbin1@huawei.com>
Subject: Re: [PATCH v3] ARM: module.lds: fix unwind metadata for merged .text sections
Date: Thu, 6 Aug 2026 21:02:12 +0800	[thread overview]
Message-ID: <20260806130212.48727-1-xieyuanbin1@huawei.com> (raw)
In-Reply-To: <tencent_08845B64E5F38EB7FA1779982A071AB4A607@qq.com>

On Sat, 30 May 2026 23:46:01 +0800, Xiao Junzhe wrote:
> +	.ARM.extab		0 : {
> +		*(.ARM.extab .ARM.extab.text .ARM.extab.text.[0-9a-zA-Z_]*)
> +	}
> +	.ARM.exidx		0 : {
> +		*(.ARM.exidx .ARM.exidx.text .ARM.exidx.text.[0-9a-zA-Z_]*)
> +	}
> +}

I think ".ARM.extab.text" and ".ARM.exidx.text" is redundant, and I
suggest that
"*(.ARM.extab .ARM.extab.text.[0-9a-zA-Z_]*)"
"*(.ARM.exidx .ARM.exidx.text.[0-9a-zA-Z_]*)"
instead.

Mapping between the text sections and exidx sections in .o files
generated by the compilers:
".text" -> ".ARM.exidx"
".text.xx" -> ".ARM.exidx.text.xx"

".ARM.extab.text" and ".ARM.exidx.text" sections will never be
generated by the compilers.

Also Cc to Linus Walleij and UNWIND:
Cc: Linus Walleij <linusw@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>


  parent reply	other threads:[~2026-08-06 13:02 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-30 15:46 [PATCH v3] ARM: module.lds: fix unwind metadata for merged .text sections Egg12138
2026-07-27  7:47 ` Ju Nan
2026-08-06  9:34 ` Petr Pavlu
2026-08-06 13:02 ` Xie Yuanbin [this message]
2026-08-06 14:29   ` Xiao Junzhe
2026-08-07  2:13     ` Xie Yuanbin

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