From patchwork Mon Jul 31 08:03:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akihiko Odaki X-Patchwork-Id: 1814804 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=daynix-com.20221208.gappssmtp.com header.i=@daynix-com.20221208.gappssmtp.com header.a=rsa-sha256 header.s=20221208 header.b=orB03koF; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RDrNh422qz20GB for ; Mon, 31 Jul 2023 18:04:04 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qQNsO-0002BO-KU; Mon, 31 Jul 2023 04:03:36 -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 1qQNsN-0002BD-PW for qemu-devel@nongnu.org; Mon, 31 Jul 2023 04:03:36 -0400 Received: from mail-pl1-x636.google.com ([2607:f8b0:4864:20::636]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qQNsM-0005zY-4n for qemu-devel@nongnu.org; Mon, 31 Jul 2023 04:03:35 -0400 Received: by mail-pl1-x636.google.com with SMTP id d9443c01a7336-1b8ad8383faso36037285ad.0 for ; Mon, 31 Jul 2023 01:03:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=daynix-com.20221208.gappssmtp.com; s=20221208; t=1690790612; x=1691395412; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=q3QyGAkEs1Y8bd2mhvAi+cgH5Ugs+8r1XJByBS1rISQ=; b=orB03koFPvKz0owhUIi2aSjVD8kLCyEtIQrHgODAX5I4/hSdm12Ue9XLZAIkl3Mj8H HYpbK4pIwzkVfYCGq1rRvb4tFqGpjNMj1cAZ6EqX15nunu5Ng/EDztxmQcYtX+OFvjpR ImvBwyA1BVZaiCEsufZiWG7HmococGH5Ke9Te6QdxqT851pWewjmfnIecgW0nAlChfu4 zSI+I8OF19IvybH7dSSlyqbya7PXq1mzR7Nqud7eTv126EBEyxnk49RwwtfI2NFuROqM ZY/L/ZKqQssj4OAV9ENmFsS9ti5zeSlx27WNAzEhFO6NjaGKV6tsb5nsKYo4TRHx1zTG 5H7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690790612; x=1691395412; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=q3QyGAkEs1Y8bd2mhvAi+cgH5Ugs+8r1XJByBS1rISQ=; b=WYJY5zzX6UbYULQhCntabaVmIkBxt8XlRUm/RLqNve7oVxa3JBNzle4G5ujFGWzRts 5Z6yf4WLk1zbpyE0WsXTDYHmpKL0duq0MNDodmmN4BDQMs3174ph8PiDWRFF74kYtRjK D/NJEHaZME2ORSmbtSOPhitUNd4s0dBhMdkdqYPRvEZ6rzV1heDuT1eBgTNHt3wrXraN 7n1FNIKqGYPN4l9Ff4LKgwRc25FE9wG0Y5AIJ/19PqmYdiQ9ErKuFV5nHBaaeM0zVVj4 SlVXi8ANy7aj4nh2Ct65hhxIdTHli69+bSIsb8UPtxvXu8VfHc7Rz6tByz2mad8QMHNf q0Kg== X-Gm-Message-State: ABy/qLa47dXKZnmWdZ67am47N8aQeeoTrN44tkYYr7Oeg8H9Dydf0VbE eoVbKG/489BJ1BVo8U7BcMT4x5Ou1KOPvbl1MHE= X-Google-Smtp-Source: APBJJlETvJPSOlOgM0k0N8K9zQLEOyjQ/4PM2ZmiXT1P73y70pL1RxEtddY1t9C6b+aS/1EGiBB0+Q== X-Received: by 2002:a17:902:9b94:b0:1bb:a6db:3fd0 with SMTP id y20-20020a1709029b9400b001bba6db3fd0mr7959246plp.69.1690790611861; Mon, 31 Jul 2023 01:03:31 -0700 (PDT) Received: from alarm.. ([157.82.204.253]) by smtp.gmail.com with ESMTPSA id jb22-20020a170903259600b001b89466a5f4sm7883559plb.105.2023.07.31.01.03.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Jul 2023 01:03:31 -0700 (PDT) From: Akihiko Odaki To: Cc: qemu-devel@nongnu.org, Laurent Vivier , Akihiko Odaki Subject: [PATCH 0/5] linux-user: brk/mmap fixes Date: Mon, 31 Jul 2023 17:03:09 +0900 Message-ID: <20230731080317.112658-1-akihiko.odaki@daynix.com> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Received-SPF: none client-ip=2607:f8b0:4864:20::636; envelope-from=akihiko.odaki@daynix.com; helo=mail-pl1-x636.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org linux-user was failing on M2 MacBook Air. Digging into the details, I found several bugs in brk and mmap so here are fixes. Akihiko Odaki (5): linux-user: Unset MAP_FIXED_NOREPLACE for host linux-user: Do not call get_errno() in do_brk() linux-user: Use MAP_FIXED_NOREPLACE for do_brk() linux-user: Do nothing if too small brk is specified linux-user: Do not align brk with host page size linux-user/elfload.c | 4 +-- linux-user/mmap.c | 2 ++ linux-user/syscall.c | 67 +++++++++----------------------------------- 3 files changed, 17 insertions(+), 56 deletions(-) Tested-by: Joel Stanley