linux-kernel - Re: [RFC PATCH v1 00/23] LoongArch: Add objtool and ORC unwinder support

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Date:   Tue, 20 Jun 2023 16:32:04 +0800
From:   Xi Ruoyao <xry111@...111.site>
To:     Youling Tang <tangyouling@...ngson.cn>
Cc:     Josh Poimboeuf <jpoimboe@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Huacai Chen <chenhuacai@...nel.org>,
        madvenka@...ux.microsoft.com, chenzhongjin@...wei.com,
        WANG Xuerui <kernel@...0n.name>, live-patching@...r.kernel.org,
        linux-kernel@...r.kernel.org, loongarch@...ts.linux.dev,
        tangyouling00@...il.com, youling.tang@...look.com
Subject: Re: [RFC PATCH v1 00/23] LoongArch: Add objtool and ORC unwinder
 support

On Tue, 2023-06-20 at 16:29 +0800, Youling Tang wrote:
> Hi, Ruoyao
> 
> On 06/20/2023 04:15 PM, Xi Ruoyao wrote:
> > It looks like only 19 patches are successfully delivered, out of 23.
> I'm sorry, somehow the patchset didn't reach the mailing list. Probably
> due to the sending limit being reached.

They've reached now.  Thanks!

> > And AFAIK objtool needs libelf from elfutils, and the LoongArch support
> > in elfutils is not complete (there are about ten failures in the test
> > suite as at the latest 0.189 release).  Do we need to add more LoongArch
> > support into libelf and/or declare a minimal needed libelf version for
> > LoongArch objtool?

> After the following series of patches [1], the elfutils test results
> are passed.
> 
> [1]: https://sourceware.org/pipermail/elfutils-devel/2023q2/006107.html

Wow thanks, I'll add them into my build.  But I'm not sure if we need a
libelf version check or something in the kernel building system.

-- 
Xi Ruoyao <xry111@...111.site>
School of Aerospace Science and Technology, Xidian University