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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 70CD0C282DE for ; Thu, 13 Mar 2025 20:22:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=vmkNdzGxNJ+2rY6Z0fRcg5hh25QblX6DkcAlS4F1lBU=; b=YQO1D0BdxdIL34uP8+Tbus12yX 6F+46KTW6lQrpqaiwOPJ7ROuxt3fcqicuuUnuySrpoNsIP8S/RpeZ24E81zWOlMMR9vWKNoED4Tv8 ufrp5vZVWS/tEthm5HjjPyQAQr2mv+z1zWnzYGI2bsZoCq/YQJyqwRwvHElKgaka5ZSnciKR82SqV AAx2RKkcQ5EPac1Kn3NUmxfF8eVLDL51BAoycOlxMlTMvYw6g/BxuMM+SNw97JOH9920NuAj1KrS9 fUPwl3TDrpfQ+osqekXBXnWZ6uOqFvXnVL/hfXPEkFsv6U7HJPvvBKKCOTCrjhXSmEpkTtFHGUgQK XyFp0wPA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tsp41-0000000CQvF-039i; Thu, 13 Mar 2025 20:21:57 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tsp2L-0000000CQdA-2n24; Thu, 13 Mar 2025 20:20:14 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 1D8D3A4873B; Thu, 13 Mar 2025 20:14:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 045BAC4CEE3; Thu, 13 Mar 2025 20:20:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741897212; bh=7PeCj+W4btHHKEEgyWVcs04k5u5DYkGktv3w5M/oHMk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=DyjZmA1Sv+IEeuEtF6WeykYgVhtgrHpisnROviZ79Bes51/ehhkepJm9b30ri/aw2 3IGI2vdaL46imyaYjy5dC2z6muRAaVhdPk8Vg5uGxEHnvR16gyiFgfsEQhhba/S7Ix BSUB11Yn1fOJ5/zIvPobTRTnal8ofDK1fmjq91MxpohvmidJctsFPLh0XoIj59acz0 wFKK2zDhMr2lrNRMsQriW9rrQaYNBYtuZ4bjPwkGOUHDKCy6fBNVqOiGIa902KoClS NwcTEv7WgS/fCcDHfKVBs6rnhJ1Fq/h63yCB/+JoqbsrRtYSn/v9ZjVgFaHJ8p6f+V 1U8RMUKskYSpw== Date: Thu, 13 Mar 2025 17:20:09 -0300 From: Arnaldo Carvalho de Melo To: Namhyung Kim Cc: Ian Rogers , Peter Zijlstra , Ingo Molnar , Mark Rutland , Alexander Shishkin , Jiri Olsa , Adrian Hunter , Kan Liang , John Garry , Will Deacon , James Clark , Mike Leach , Leo Yan , guoren , Paul Walmsley , Palmer Dabbelt , Albert Ou , Charlie Jenkins , Bibo Mao , Huacai Chen , Catalin Marinas , Jiri Slaby , =?iso-8859-1?Q?Bj=F6rn_T=F6pel?= , Howard Chu , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, "linux-csky@vger.kernel.org" , linux-riscv@lists.infradead.org, Arnd Bergmann Subject: Re: [PATCH v5 00/11] perf: Support multiple system call tables in the build Message-ID: References: <20250308003209.234114-1-irogers@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250313_132013_828741_07F9AD33 X-CRM114-Status: GOOD ( 23.50 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Mar 13, 2025 at 04:49:52PM -0300, Arnaldo Carvalho de Melo wrote: > On Thu, Mar 13, 2025 at 12:11:40AM -0700, Namhyung Kim wrote: > > On Fri, Mar 07, 2025 at 04:31:58PM -0800, Ian Rogers wrote: > > > This work builds on the clean up of system call tables and removal of > > > libaudit by Charlie Jenkins . > > > > > > The system call table in perf trace is used to map system call numbers > > > to names and vice versa. Prior to these changes, a single table > > > matching the perf binary's build was present. The table would be > > > incorrect if tracing say a 32-bit binary from a 64-bit version of > > > perf, the names and numbers wouldn't match. > > > > > > Change the build so that a single system call file is built and the > > > potentially multiple tables are identifiable from the ELF machine type > > > of the process being examined. To determine the ELF machine type, the > > > executable's maps are searched and the associated DSOs ELF headers are > > > read. When this fails and when live, /proc/pid/exe's ELF header is > > > read. Fallback to using the perf's binary type when unknown. > > > > Now it works well for me! > > Its working for me on x86_64 as well, I'm doing some more tests, the > container builds and will do 32-bit tracing on 64-bit ARM (rpi5 aarch64) > and then report results here, should be later today as the default > kernel for the rpi5 doesn't come with CONFIG_FTRACE_SYSCALLS=y and BTF, > so building one with it. Still building, but noticed this on x86_64: 105: perf trace enum augmentation tests : FAILED! 106: perf trace BTF general tests : FAILED! 107: perf trace exit race : Ok 108: perf trace record and replay : FAILED! The first doesn´t help that much with verbose mode, haven't checked if before this series it was failing :-\ root@x1:~# perf test -vvv 105 105: perf trace enum augmentation tests: --- start --- test child forked, pid 19411 Checking if vmlinux exists Tracing syscall landlock_add_rule ---- end(-1) ---- 105: perf trace enum augmentation tests : FAILED! root@x1:~# Ditto for 106: root@x1:~# perf test -vv 106 106: perf trace BTF general tests: --- start --- test child forked, pid 19467 Checking if vmlinux BTF exists Testing perf trace's string augmentation Testing perf trace's buffer augmentation Buffer augmentation test failed ---- end(-1) ---- 106: perf trace BTF general tests : FAILED! root@x1:~# 108 works when its the only test: root@x1:~# perf test 108 108: perf trace record and replay : Ok root@x1:~# perf test 108 108: perf trace record and replay : Ok root@x1:~# perf test 108 108: perf trace record and replay : Ok root@x1:~# I'll try to check what is happening with the first two later today. - Arnaldo