From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E8C8543DA32; Tue, 20 Jan 2026 18:50:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768935007; cv=none; b=mbFJewpizk9mXaf3k9/NYfaWl0yHPqYVFFDLQ9Flxfo7HAAwoHsxkpOyUm5eEKm97nJI98SAfhKY1WKx+LDdfKYHHsW+gMtQa+7Bd5gVTtffZfThgb9IqHOIr4E2RDWGAZvqE73QmezIy9xsb1iVYlLX1raktpvt8k0woHgQpgk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768935007; c=relaxed/simple; bh=RmGeyuXo1uW+F5wAFWT4FNRAvYpuDuojoTmkmG6thsg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Yzbz48GTE8SWtVq/8wAW6pG1falw7vVUDj5QdMW73/C+TTDr3P2BOxIu4z48zUG9ySl7LoV383U+eOWKj1xl3r2f1/ADHsUFET2DH+6iw/N4dGnTxp76oRr5YLzrLP/9Xl7rwLZWG7Xc6MK09if4jSm1p817iWOUYqzd4iBSsPo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XMFr0HUn; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="XMFr0HUn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D20CAC19421; Tue, 20 Jan 2026 18:50:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768935002; bh=RmGeyuXo1uW+F5wAFWT4FNRAvYpuDuojoTmkmG6thsg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=XMFr0HUnW2gYIg+E4/T/nh+T/QfHDMc2TLB2/zszUt0HXKwvhCRhKh4lcMkeSr2Ne AAWnRTO264ZmkDHhpojE9ivFIjL+XA73XMS5r+nNVLd7nonTTwtkPMmxSOji3WXASy VSYLaCKzBf02zAAWW9tcwWC9QBfANo4NPsJznBVq6coq8SMiOHpFoKSiaZ/c0wJnLF vclTuYh5uRyhvj90KnGJeh4pjcU+OgAFq0Awl0SbsRStoKqGhb4e8ah+XE//Tc7nSp 42nG8H7qsbqyoxTVwfbNmkswQXM9rx3sjGlQxnnNZ0s5ek61vtiB0LniK69jN8Q1tX +V9Z+6Eh30Y6w== Date: Tue, 20 Jan 2026 15:49:59 -0300 From: Arnaldo Carvalho de Melo To: Ian Rogers Cc: Peter Zijlstra , Ingo Molnar , Namhyung Kim , Jiri Olsa , Adrian Hunter , James Clark , John Garry , Will Deacon , Leo Yan , Guo Ren , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Shimin Guo , Athira Rajeev , Stephen Brennan , Howard Chu , Thomas Falcon , Andi Kleen , "Dr. David Alan Gilbert" , Dmitry Vyukov , Krzysztof =?utf-8?Q?=C5=81opatowski?= , Chun-Tse Shao , Aditya Bodkhe , Haibo Xu , Sergei Trofimovich , 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, Mark Wielaard Subject: Re: [PATCH v1 08/23] perf perf_regs: Switch from arch string to int e_machine Message-ID: References: <20260117052849.2205545-1-irogers@google.com> <20260117052849.2205545-9-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260117052849.2205545-9-irogers@google.com> On Fri, Jan 16, 2026 at 09:28:34PM -0800, Ian Rogers wrote: > The arch string requires multiple strcmp to identify things like the > IP and SP. Switch to passing in an e_machine that in the bulk of cases > is computed using a current thread load. The e_machine also allows > identification of 32-bit vs 64-bit processes. > > Signed-off-by: Ian Rogers > --- > tools/perf/builtin-script.c | 17 ++- > tools/perf/util/evsel.c | 14 ++- > tools/perf/util/perf_regs.c | 105 +++++++++++------- [ Include dwarf-regs.h to get conditional defines for EM_CSKY and EM_LOONGARCH, not available in old distros ] - Arnaldo