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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 9C57DC27C4F for ; Thu, 13 Jun 2024 12:36:06 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sHjff-0005vn-JM; Thu, 13 Jun 2024 08:35:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sHjfd-0005tW-Sv for qemu-devel@nongnu.org; Thu, 13 Jun 2024 08:35:13 -0400 Received: from mail-ed1-x52d.google.com ([2a00:1450:4864:20::52d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sHjfc-000079-66 for qemu-devel@nongnu.org; Thu, 13 Jun 2024 08:35:13 -0400 Received: by mail-ed1-x52d.google.com with SMTP id 4fb4d7f45d1cf-57ca578ce8dso1013242a12.2 for ; Thu, 13 Jun 2024 05:35:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1718282108; x=1718886908; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:references :in-reply-to:subject:cc:to:from:from:to:cc:subject:date:message-id :reply-to; bh=xsWT4b3y3NMawCOFvh2U/P9gaPJIhjmuV+d7jXet5BY=; b=saw+xxysivueil9CppBZJHPg+fnCSf85x5RuKYhdkayj3DYMKsB5N7aIunjOBR6NbJ VxtCv5xYxkbm7MdQ0bJCWZ+EpwXM6tEJizgzlftrlJgSrievp7irA4zGUguAar+IG5zr L8/hGRe3XmrTAyWaMweykLQcufAd1puzRk9VUqyPf7WpGfPMiVonKfcUofabl9Rpvi4U FCKr4pawAA34GpvL4esmtJB/3BvcI9Ep90R+lGaWYGkqAVNDwRivsC36hPX8nXp28OJv TwlTQjxZAxgMq/Q5v6ld4fTs/Wj13feNq4i21fGBE5a9ds5iiZDv+HldvIGb+T55Gdtu X9Zg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718282108; x=1718886908; h=content-transfer-encoding:mime-version:message-id:date:references :in-reply-to:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=xsWT4b3y3NMawCOFvh2U/P9gaPJIhjmuV+d7jXet5BY=; b=dzO34FCgNsc/1t+C+g4brJVsJBQtkBr02763e3hSAxc55iZBCXYdJwR6sj1SCLoYGG Sg4RhJ1OvglaXgaxVlvwZ3Dp7gMhoua66MSI5oTV4aHbS5qXuqcFg2jMtnCNvqkfIgYa oFI1bdmFMqsQRfgma9me5yF6rCAxwJVBCFYzZXphq99nY3+gDuVTMWlgT5YRCI7raChe kbECNKAV+CZn0pxsmGmayMcqrnkhX62TWmM/eYBm3Bxx1cv+RWOWspSF0w+EFWQTMZiB eRh6NosmPl0fxdaXgq1CE6r7kM6yLEFGTsE/6ADXLbXXrC4OvID5bbE2YdRkZ9vJtV8h sjuA== X-Gm-Message-State: AOJu0YwoMoCzkJMeJlXrxoFmTv+aXM2U1F+kg/NQ/ta1eTsvWJJQl/LM pUldLXDYah/G0arGIanwNFmjUyml7WIOkl1tcqqrEAjGFuIQ0xBLIEOfQLMVf5Q= X-Google-Smtp-Source: AGHT+IEj2rxfbDph7WYanlJZ1uCIbQZ2O7hXqwikG5pyz22qEmiLCZWq85VCfiQHjOzbKpCqLLKu9w== X-Received: by 2002:a17:906:2b9a:b0:a6f:18ed:254f with SMTP id a640c23a62f3a-a6f47d56f0cmr318681266b.58.1718282107852; Thu, 13 Jun 2024 05:35:07 -0700 (PDT) Received: from draig.lan ([85.9.250.243]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a6f5c416f7asm32756866b.92.2024.06.13.05.35.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Jun 2024 05:35:07 -0700 (PDT) Received: from draig (localhost [IPv6:::1]) by draig.lan (Postfix) with ESMTP id EC0DB5F7A1; Thu, 13 Jun 2024 13:35:06 +0100 (BST) From: =?utf-8?Q?Alex_Benn=C3=A9e?= To: Richard Henderson Cc: qemu-devel@nongnu.org, pierrick.bouvier@linaro.org Subject: Re: [PATCH v2 8/9] target/arm: Add aarch64_tcg_ops In-Reply-To: (Richard Henderson's message of "Wed, 12 Jun 2024 08:45:59 -0700") References: <20240606032926.83599-1-richard.henderson@linaro.org> <20240606032926.83599-9-richard.henderson@linaro.org> <878qzaxm6n.fsf@draig.linaro.org> Date: Thu, 13 Jun 2024 13:35:06 +0100 Message-ID: <87a5jpvx51.fsf@draig.linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::52d; envelope-from=alex.bennee@linaro.org; helo=mail-ed1-x52d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Richard Henderson writes: > On 6/12/24 07:36, Alex Benn=C3=A9e wrote: >> What happens when the CPU is running mixed mode code and jumping between >> 64 and 32 bit? Wouldn't it be easier to have a helper that routes to the >> correct unwinder, c.f. gen_intermediate_code > > GDB can't switch modes, so there is *never* any mode switching. Hmm but code can. We do want to solve the gdb mode switching case as well although that requires some work on the gdbstub. --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro