From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB6C2C433DF for ; Wed, 24 Jun 2020 17:53:00 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 911212077D for ; Wed, 24 Jun 2020 17:53:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 911212077D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 5C1606B000E; Wed, 24 Jun 2020 13:52:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 54C116B0010; Wed, 24 Jun 2020 13:52:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3EA546B0022; Wed, 24 Jun 2020 13:52:59 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0246.hostedemail.com [216.40.44.246]) by kanga.kvack.org (Postfix) with ESMTP id 214886B000E for ; Wed, 24 Jun 2020 13:52:59 -0400 (EDT) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id D27FB180AD804 for ; Wed, 24 Jun 2020 17:52:58 +0000 (UTC) X-FDA: 76964851236.18.mice38_4a0d5c526e46 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin18.hostedemail.com (Postfix) with ESMTP id A87C1100ED9D7 for ; Wed, 24 Jun 2020 17:52:58 +0000 (UTC) X-HE-Tag: mice38_4a0d5c526e46 X-Filterd-Recvd-Size: 3372 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf16.hostedemail.com (Postfix) with ESMTP for ; Wed, 24 Jun 2020 17:52:58 +0000 (UTC) Received: from localhost.localdomain (unknown [2.26.170.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8F16A207E8; Wed, 24 Jun 2020 17:52:55 +0000 (UTC) From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, Will Deacon , Dave P Martin , Vincenzo Frascino , Szabolcs Nagy , Kevin Brodsky , Andrey Konovalov , Peter Collingbourne , Andrew Morton , Arnd Bergmann Subject: [PATCH v5 04/25] arm64: mte: Add specific SIGSEGV codes Date: Wed, 24 Jun 2020 18:52:23 +0100 Message-Id: <20200624175244.25837-5-catalin.marinas@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200624175244.25837-1-catalin.marinas@arm.com> References: <20200624175244.25837-1-catalin.marinas@arm.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: A87C1100ED9D7 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Vincenzo Frascino Add MTE-specific SIGSEGV codes to siginfo.h and update the x86 BUILD_BUG_ON(NSIGSEGV !=3D 7) compile check. Signed-off-by: Vincenzo Frascino [catalin.marinas@arm.com: renamed precise/imprecise to sync/async] [catalin.marinas@arm.com: dropped #ifdef __aarch64__, renumbered] Signed-off-by: Catalin Marinas Acked-by: "Eric W. Biederman" Cc: Arnd Bergmann Cc: Will Deacon --- Notes: v3: - Fixed the BUILD_BUG_ON(NSIGSEGV !=3D 7) on x86 - Updated the commit log =20 v2: - Dropped the #ifdef __aarch64__. - Renumbered the SEGV_MTE* values to avoid clash with ADI. arch/x86/kernel/signal_compat.c | 2 +- include/uapi/asm-generic/siginfo.h | 4 +++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_com= pat.c index 9ccbf0576cd0..a7f3e12cfbdb 100644 --- a/arch/x86/kernel/signal_compat.c +++ b/arch/x86/kernel/signal_compat.c @@ -27,7 +27,7 @@ static inline void signal_compat_build_tests(void) */ BUILD_BUG_ON(NSIGILL !=3D 11); BUILD_BUG_ON(NSIGFPE !=3D 15); - BUILD_BUG_ON(NSIGSEGV !=3D 7); + BUILD_BUG_ON(NSIGSEGV !=3D 9); BUILD_BUG_ON(NSIGBUS !=3D 5); BUILD_BUG_ON(NSIGTRAP !=3D 5); BUILD_BUG_ON(NSIGCHLD !=3D 6); diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generi= c/siginfo.h index cb3d6c267181..7aacf9389010 100644 --- a/include/uapi/asm-generic/siginfo.h +++ b/include/uapi/asm-generic/siginfo.h @@ -229,7 +229,9 @@ typedef struct siginfo { #define SEGV_ACCADI 5 /* ADI not enabled for mapped object */ #define SEGV_ADIDERR 6 /* Disrupting MCD error */ #define SEGV_ADIPERR 7 /* Precise MCD exception */ -#define NSIGSEGV 7 +#define SEGV_MTEAERR 8 /* Asynchronous ARM MTE error */ +#define SEGV_MTESERR 9 /* Synchronous ARM MTE exception */ +#define NSIGSEGV 9 =20 /* * SIGBUS si_codes