From patchwork Fri Mar 8 14:10:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 13586869 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 1E101C54E58 for ; Fri, 8 Mar 2024 14:12:11 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1riawV-0007fC-N7; Fri, 08 Mar 2024 09:11:23 -0500 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 1riawR-0007eO-MS for qemu-devel@nongnu.org; Fri, 08 Mar 2024 09:11:21 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1riawN-0000be-3c for qemu-devel@nongnu.org; Fri, 08 Mar 2024 09:11:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1709907072; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=7xWQJb046Cd1cbaMyzGU4tbZb3+rUnbGtrw6OhayPjI=; b=G946+k3d45AOgZMv4inxCoiiIgmxQ2SRtyz/Esh+7eZHPDqChklkfT4R7PBs4frbQrjorM fpeTvkpjJHCDz3GSox/jqtULbFJED0sYRCRG263GFkxowPgo8S0epf4py9TTAmw/EvFonZ yN6heHqvib0gSEXscXv/28uv39wlyHk= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-357-unHregWpMBaKgZflfai7RA-1; Fri, 08 Mar 2024 09:11:10 -0500 X-MC-Unique: unHregWpMBaKgZflfai7RA-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 2FFA73801F53; Fri, 8 Mar 2024 14:10:54 +0000 (UTC) Received: from thuth-p1g4.redhat.com (unknown [10.39.192.9]) by smtp.corp.redhat.com (Postfix) with ESMTP id D6090492BCB; Fri, 8 Mar 2024 14:10:52 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell Cc: qemu-arm@nongnu.org Subject: [PATCH v3 0/3] target/arm: Allow compilation without CONFIG_ARM_V7M Date: Fri, 8 Mar 2024 15:10:48 +0100 Message-ID: <20240308141051.536599-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.9 Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.572, 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=unavailable 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 We've got a switch to disable v7m code since a long time - but it currently cannot be disabled since linking then fails due to missing functions. But thanks to the clean-ups that have been done during the past years, it's not that difficult anymore to finally make it possible to disable CONFIG_ARM_V7M: We just have to move some v7m-related code out of cpu32.c to a separate file (that we only compile if the switch CONFIG_ARM_V7M is enabled) and make sure to use the stub functions in m_helper.c if it is disabled. Then we can finally remove the hard-coded "select ARM_V7M" from the Kconfig file. v3: - Rebase to current master branch - Make sure that the stubs use g_assert_not_reached() in the second patch v2: - Updated a comment - Avoid #ifdef in cpu-v7m.c, handle it via meson.build instead Thomas Huth (3): target/arm: Move v7m-related code from cpu32.c into a separate file target/arm/tcg/m_helper.c: Include the full helpers only with CONFIG_ARM_V7M target/arm/Kconfig: Stop requiring CONFIG_ARM_V7M target/arm/tcg/cpu-v7m.c | 290 +++++++++++++++++++++++++++++++++++++ target/arm/tcg/cpu32.c | 261 --------------------------------- target/arm/tcg/m_helper.c | 93 ++++++++---- target/arm/Kconfig | 4 - target/arm/meson.build | 3 + target/arm/tcg/meson.build | 3 + 6 files changed, 357 insertions(+), 297 deletions(-) create mode 100644 target/arm/tcg/cpu-v7m.c