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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13C69C77B7F for ; Tue, 16 May 2023 18:33:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229982AbjEPSdK (ORCPT ); Tue, 16 May 2023 14:33:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43566 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230060AbjEPSdJ (ORCPT ); Tue, 16 May 2023 14:33:09 -0400 Received: from mail-oo1-xc2b.google.com (mail-oo1-xc2b.google.com [IPv6:2607:f8b0:4864:20::c2b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8AB1859CB for ; Tue, 16 May 2023 11:33:02 -0700 (PDT) Received: by mail-oo1-xc2b.google.com with SMTP id 006d021491bc7-552621bdbbbso1743692eaf.1 for ; Tue, 16 May 2023 11:33:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1684261982; x=1686853982; h=content-disposition:mime-version:message-id:subject:cc:to:date:from :from:to:cc:subject:date:message-id:reply-to; bh=XH0y+GTalSRtMGbisTzJJVpaGWPePAl2Mpmnaf9OUxE=; b=HWtc9Z02lS5k5RwvWtOlHK0AD+3B3Pw9wAMNhzPLQ4YEsoZKA5DdHsmgUcj1cL8MC+ atLMYF70U4BpQbVqCbdf/3cqlw96HaRmbFKOOxWsKonFoPkMNQXUKWkozXk9Pf6LlhD6 sI2s5nM0Bvamx7XZf7s3kjYsMxObm/E1jRg+c8eBfvanYc7IUX0QLHEPgvVLHJMjFO3s VxhptOF7iCgcfDt8hAEs6aVqCnMbFPfv3kyzAo8CetwBTutWBcWfQUPRkhta+UKB46FC wHSm9zVsmOmgSYNu0Q8uF9vXPBIaD3suk4c7GJY2yWWsSZq+ZSn+WZaVi6lXwsziQGUm JM+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684261982; x=1686853982; h=content-disposition:mime-version:message-id:subject:cc:to:date:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=XH0y+GTalSRtMGbisTzJJVpaGWPePAl2Mpmnaf9OUxE=; b=CXEpC29vNl8HEWAuLgqL2tAxaxCR1KguQqkFgHs1ir+7k5BGb0wkPhBOVwP7+2rfB9 ZwFDW8xckm7z8Fwgof57btPKpm8tLbhTLnnifCMx2Ux7lvHmPiZTx3wuEb2X9qeLyDJ0 ibsbI77UF4wrf5eMIROcwy/D4Qhd/xLx5Ju+75owpEMJ1ixX5gMLX7j6Oja9SSF6/W2I qIopw3onJopqEULUd73N9BZ7Z1Vh1OiuAErmi5hzNxyXH1hzWIwDt3NFqvpBFDg7y8XV U/oay6NMGQVB+lgFLZNF656o/pfqJaqUzDvjUbEMWm4QhNM0acEfQAKIUWbcFjMBDF7d Lvpw== X-Gm-Message-State: AC+VfDytNac0KXlLnTMCwlMfInD7RvKaIvFly1oS5A9l1E4fXyJdT3pz Q9BSKdTd1nidncmRTu6mwyffdyhFWRw/cw== X-Google-Smtp-Source: ACHHUZ4KYXgPdS1EVNlQmkfSKCXh4Ru9AlZkruYSiPyUYZFjrzO/n2EK403329umZkZimGHSkdNUtg== X-Received: by 2002:a4a:91cf:0:b0:54c:723b:36a8 with SMTP id e15-20020a4a91cf000000b0054c723b36a8mr11420813ooh.4.1684261981716; Tue, 16 May 2023 11:33:01 -0700 (PDT) Received: from quaco.ghostprotocols.net ([179.97.37.151]) by smtp.gmail.com with ESMTPSA id m12-20020a056820034c00b00545442d89b3sm3140411ooe.23.2023.05.16.11.33.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 May 2023 11:33:01 -0700 (PDT) From: arnaldo.melo@gmail.com X-Google-Original-From: Arnaldo Carvalho de Melo , Arnaldo Carvalho de Melo Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id 39808403B5; Tue, 16 May 2023 15:32:59 -0300 (-03) Date: Tue, 16 May 2023 15:32:59 -0300 To: Heiko Carstens Cc: Vasily Gorbik , Adrian Hunter , Ian Rogers , Jiri Olsa , Namhyung Kim , Linux Kernel Mailing List Subject: [PATCH 1/1 fyi] tools headers UAPI: Sync s390 syscall table file that wires up the memfd_secret syscall Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tldr; Just FYI, I'm carrying this on the perf tools tree. - Arnaldo Full explanation: There used to be no copies, with tools/ code using kernel headers directly. From time to time tools/perf/ broke due to legitimate kernel hacking. At some point Linus complained about such direct usage. Then we adopted the current model. The way these headers are used in perf are not restricted to just including them to compile something. There are sometimes used in scripts that convert defines into string tables, etc, so some change may break one of these scripts, or new MSRs may use some different #define pattern, etc. E.g.: $ ls -1 tools/perf/trace/beauty/*.sh | head -5 tools/perf/trace/beauty/arch_errno_names.sh tools/perf/trace/beauty/drm_ioctl.sh tools/perf/trace/beauty/fadvise.sh tools/perf/trace/beauty/fsconfig.sh tools/perf/trace/beauty/fsmount.sh $ $ tools/perf/trace/beauty/fadvise.sh static const char *fadvise_advices[] = { [0] = "NORMAL", [1] = "RANDOM", [2] = "SEQUENTIAL", [3] = "WILLNEED", [4] = "DONTNEED", [5] = "NOREUSE", }; $ The tools/perf/check-headers.sh script, part of the tools/ build process, points out changes in the original files. So its important not to touch the copies in tools/ when doing changes in the original kernel headers, that will be done later, when check-headers.sh inform about the change to the perf tools hackers. --- To pick the changes in these csets: 7608f70adcb1ea69 ("s390: wire up memfd_secret system call") That add support for this new syscall in tools such as 'perf trace'. For instance, this is now possible (adapted from the x86_64 test output): # perf trace -v -e memfd_secret event qualifier tracepoint filter: (common_pid != 13375 && common_pid != 3713) && (id == 447) ^C# That is the filter expression attached to the raw_syscalls:sys_{enter,exit} tracepoints. $ grep memfd_secret tools/perf/arch/x86/entry/syscalls/syscall_64.tbl 447 common memfd_secret sys_memfd_secret $ This addresses this perf build warnings: Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl' diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl Cc: Heiko Carstens Cc: Vasily Gorbik Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/arch/s390/entry/syscalls/syscall.tbl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/arch/s390/entry/syscalls/syscall.tbl b/tools/perf/arch/s390/entry/syscalls/syscall.tbl index 799147658dee20dd..b68f47541169f9af 100644 --- a/tools/perf/arch/s390/entry/syscalls/syscall.tbl +++ b/tools/perf/arch/s390/entry/syscalls/syscall.tbl @@ -449,7 +449,7 @@ 444 common landlock_create_ruleset sys_landlock_create_ruleset sys_landlock_create_ruleset 445 common landlock_add_rule sys_landlock_add_rule sys_landlock_add_rule 446 common landlock_restrict_self sys_landlock_restrict_self sys_landlock_restrict_self -# 447 reserved for memfd_secret +447 common memfd_secret sys_memfd_secret sys_memfd_secret 448 common process_mrelease sys_process_mrelease sys_process_mrelease 449 common futex_waitv sys_futex_waitv sys_futex_waitv 450 common set_mempolicy_home_node sys_set_mempolicy_home_node sys_set_mempolicy_home_node -- 2.39.2