From patchwork Thu Aug 6 19:14:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Bonzini X-Patchwork-Id: 276988 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4B63C433E1 for ; Thu, 6 Aug 2020 19:24:59 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id CB6302177B for ; Thu, 6 Aug 2020 19:24:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="GDgT8YBX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CB6302177B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39428 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k3lVa-0003e3-KR for qemu-devel@archiver.kernel.org; Thu, 06 Aug 2020 15:24:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42622) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k3lO0-00048O-Lt for qemu-devel@nongnu.org; Thu, 06 Aug 2020 15:17:08 -0400 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:50383 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1k3lNy-0006PU-HY for qemu-devel@nongnu.org; Thu, 06 Aug 2020 15:17:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1596741424; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:content-type:content-type:in-reply-to:in-reply-to: references:references; bh=z3G/MI8928RPYx88f49ktkffkdJptjveZyHWfa3stAg=; b=GDgT8YBXo4dMR07NcrL+TihsB/QBxM776YnLQEDOpxfUcUlmsmWL9/6JSIMvlYmeq+7aDs bG3xjcHvj4CFzOaS9tAQ2+zFmA9Jeu909niRABoxRFBrbLpegOuTx5hhwvjYZ2LRtWPybO HRYyX8EXm+wPY5LH0wrPccN6twkkZko= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-38-a5A1tEvNOrCTFJL7gZEOlw-1; Thu, 06 Aug 2020 15:17:02 -0400 X-MC-Unique: a5A1tEvNOrCTFJL7gZEOlw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id DBC1719200C2 for ; Thu, 6 Aug 2020 19:17:01 +0000 (UTC) Received: from 640k.localdomain.com (unknown [10.36.110.10]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3069E5F9DC for ; Thu, 6 Aug 2020 19:17:00 +0000 (UTC) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PATCH 019/143] meson: add sparse support Date: Thu, 6 Aug 2020 21:14:15 +0200 Message-Id: <1596741379-12902-20-git-send-email-pbonzini@redhat.com> In-Reply-To: <1596741379-12902-1-git-send-email-pbonzini@redhat.com> References: <1596741379-12902-1-git-send-email-pbonzini@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pbonzini@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.61; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/06 00:07:42 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 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" Do not use cgcc; instead, extract compilation commands from compile_commands.json and invoke sparse directly. Signed-off-by: Paolo Bonzini --- Makefile | 1 + configure | 8 ++------ meson.build | 7 +++++++ scripts/check_sparse.py | 25 +++++++++++++++++++++++++ 4 files changed, 35 insertions(+), 6 deletions(-) create mode 100644 scripts/check_sparse.py diff --git a/Makefile b/Makefile index 18f6aa7..9a75047 100644 --- a/Makefile +++ b/Makefile @@ -1245,6 +1245,7 @@ endif $(call print-help,install,Install QEMU, documentation and tools) $(call print-help,ctags/TAGS,Generate tags file for editors) $(call print-help,cscope,Generate cscope index) + $(call print-help,sparse,Run sparse on the QEMU source) @echo '' @$(if $(TARGET_DIRS), \ echo 'Architecture specific targets:'; \ diff --git a/configure b/configure index bdd35d2..6ee1359 100755 --- a/configure +++ b/configure @@ -2986,7 +2986,7 @@ fi ########################################## # Sparse probe if test "$sparse" != "no" ; then - if has cgcc; then + if has sparse; then sparse=yes else if test "$sparse" = "yes" ; then @@ -7777,11 +7777,7 @@ echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak if test "$sparse" = "yes" ; then - echo "CC := REAL_CC=\"\$(CC)\" cgcc" >> $config_host_mak - echo "CPP := REAL_CC=\"\$(CPP)\" cgcc" >> $config_host_mak - echo "CXX := REAL_CC=\"\$(CXX)\" cgcc" >> $config_host_mak - echo "HOST_CC := REAL_CC=\"\$(HOST_CC)\" cgcc" >> $config_host_mak - echo "QEMU_CFLAGS += -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak + echo "SPARSE_CFLAGS = -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak fi echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak diff --git a/meson.build b/meson.build index ed61853..9749c3d 100644 --- a/meson.build +++ b/meson.build @@ -17,6 +17,13 @@ add_project_arguments(config_host['QEMU_INCLUDES'].split(), python = import('python').find_installation(config_host['PYTHON'].split()[0]) +if 'SPARSE_CFLAGS' in config_host + run_target('sparse', + command: [find_program('scripts/check_sparse.py'), + config_host['SPARSE_CFLAGS'].split(), + 'compile_commands.json']) +endif + if host_machine.system() == 'darwin' add_languages('objc', required: false) endif diff --git a/scripts/check_sparse.py b/scripts/check_sparse.py new file mode 100644 index 0000000..0de7aa5 --- /dev/null +++ b/scripts/check_sparse.py @@ -0,0 +1,25 @@ +#! /usr/bin/env python3 + +# Invoke sparse based on the contents of compile_commands.json + +import json +import subprocess +import sys +import shlex + +def extract_cflags(shcmd): + cflags = shlex.split(shcmd) + return [x for x in cflags + if x.startswith('-D') or x.startswith('-I') or x.startswith('-W') + or x.startswith('-std=')] + +cflags = sys.argv[1:-1] +with open(sys.argv[-1], 'r') as fd: + compile_commands = json.load(fd) + +for cmd in compile_commands: + cmd = ['sparse'] + cflags + extract_cflags(cmd['command']) + [cmd['file']] + print(' '.join((shlex.quote(x) for x in cmd))) + r = subprocess.run(cmd) + if r.returncode != 0: + sys.exit(r.returncode)