From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from xry111.site (xry111.site [89.208.246.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 387333624A3; Fri, 27 Feb 2026 10:08:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=89.208.246.23 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772186917; cv=none; b=qUFqusvWl97KiT2jyVcAguQUtpM8y+lviwpyn1UEBr9edwQzaN9bPQvUz2Y5D5PfCKGm+DCa+VbTxTnDA5IQO9JFI4ZYZzuRSFVgVJcAbZ3200+7Kt7WXaFlFzCA2Kxlp7C3DcodvacQcyVR/3v1FkdYx+oj2zgSzAvuHhG8NSo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772186917; c=relaxed/simple; bh=xzLBxhUzHaoYvh/TPNEHN/Fc5xqc3qnU0sARp6jxXbQ=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=WcMUnfPeaI0L7KXWhGbKmYsYeWftNj4aqseWvNKKwFUhYG6xrj3tabOnFEXiH0VIDFBXkMutRJGtlIjgNulPXxGsHGlgMLD7KZpWFm/5Sbv67kcd+S5FLEh6e6LTjIFyy3IeC3leaPKRcbnJ4r3YIA8WkVZvRpneQBf/IgXXEEs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=xry111.site; spf=pass smtp.mailfrom=xry111.site; dkim=pass (1024-bit key) header.d=xry111.site header.i=@xry111.site header.b=gY2/4Kdo; arc=none smtp.client-ip=89.208.246.23 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=xry111.site Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=xry111.site Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=xry111.site header.i=@xry111.site header.b="gY2/4Kdo" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=xry111.site; s=default; t=1772186913; bh=lygb0fPXZydd/Pz9if/FAPr5SsV7QwxcaFSXSOPPIMs=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=gY2/4KdoNXvIsiclthw0uBT1/mGt9dyJ73DAsNtq42qhemB9bVtRw5rCflOuGtVIM /oB1/LxydPeLKYapoARFHyhCFZZlgjM7LqXsAxWMn9dBzfmb9b6hJa4DqWUjgZFKaQ ySiQ8lafD2iZcVHwhPJr+FO1Ujc18VR6Z3O3fhoo= Received: from [127.0.0.1] (2607-8700-5500-e873-0000-0000-0000-1001.16clouds.com [IPv6:2607:8700:5500:e873::1001]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (secp384r1) server-digest SHA384) (Client did not present a certificate) (Authenticated sender: xry111@xry111.site) by xry111.site (Postfix) with ESMTPSA id 9BB271A422D; Fri, 27 Feb 2026 05:08:27 -0500 (EST) Message-ID: Subject: Re: [PATCH v2] LoongArch: vDSO: Emit GNU_EH_FRAME correctly From: Xi Ruoyao To: Huacai Chen Cc: WANG Xuerui , Jinyang He , WANG Rui , Mingcong Bai , Zixing Liu , "H . Peter Anvin" , stable@vger.kernel.org, Peter Zijlstra , Menglong Dong , Bibo Mao , Tiezhu Yang , Hanlu Li , Nathan Chancellor , Jiaxun Yang , Ard Biesheuvel , Wentao Guan , loongarch@lists.linux.dev, linux-kernel@vger.kernel.org Date: Fri, 27 Feb 2026 18:08:23 +0800 In-Reply-To: References: <20260227072031.581229-1-xry111@xry111.site> <65a54e3763c903043d8051e3bc83c9cf783047b0.camel@xry111.site> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2026-02-27 at 18:04 +0800, Huacai Chen wrote: > On Fri, Feb 27, 2026 at 5:57=E2=80=AFPM Xi Ruoyao wr= ote: > >=20 > > On Fri, 2026-02-27 at 16:58 +0800, Huacai Chen wrote: > >=20 > > /* snip */ > >=20 > > > > diff --git a/arch/loongarch/include/asm/sigframe.h b/arch/loongarch= /include/asm/sigframe.h > > > > new file mode 100644 > > > > index 000000000000..59db3de6db85 > > > > --- /dev/null > > > > +++ b/arch/loongarch/include/asm/sigframe.h > > > > @@ -0,0 +1,12 @@ > > > > +/* SPDX-License-Identifier: GPL-2.0+ */ > > > > +/* > > > > + * Separated from arch/loongarch/kernel/signal.c. > > > I think this is also unnecessary. > >=20 > > Will remove this comment. > >=20 > > /* snip */ > >=20 > > > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 * This is also the reas= on we don't use SYM_FUNC_START. > > > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 */ > > > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 nop > > > > +SYM_START(__vdso_rt_sigreturn, SYM_L_GLOBAL, SYM_A_ALIGN) > > > Is it possible to define SYM_SIGFUNC_START/SYM_SIGFUNC_END in > > > linkage.h, and then use them here? > >=20 > > How about SYM_FUNC_{START,END}_NOCFI instead? > Of course I don't know how to name them, I just want to define a > wrapper to contain all .cfi_xxxx in this patch. Will do it. If they contain all the .cfi_ directives your naming is better. --=20 Xi Ruoyao