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 78961C19F32 for ; Wed, 5 Mar 2025 16:53:29 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tprzA-0007DF-1v; Wed, 05 Mar 2025 11:52:44 -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 1tprz2-0007AN-Vz for qemu-devel@nongnu.org; Wed, 05 Mar 2025 11:52:39 -0500 Received: from mail-yb1-xb29.google.com ([2607:f8b0:4864:20::b29]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1tprz1-0005wJ-BJ for qemu-devel@nongnu.org; Wed, 05 Mar 2025 11:52:36 -0500 Received: by mail-yb1-xb29.google.com with SMTP id 3f1490d57ef6-e3978c00a5aso5197826276.1 for ; Wed, 05 Mar 2025 08:52:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1741193553; x=1741798353; darn=nongnu.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=igUrSwpM829khWSgnZtJRplZak9Hy3/fYvzPQ4teyss=; b=qM/2QFUqpYNZPRsq6hZ0Yn4tG4pr3giO0lV4byQmbXy+woRwhIZY6eMpbai9iBAVHV eVKXbx0+vn8fpq0RlDZvz86xm1+TwUc0D9+DlM34oYT6WYSMP1CJ+nkqDhNKXlAruvr5 uOHtqHi6mo9W2ipKK3fH0robTNrdX5SxduzlBWrK/qmoDqrdoMuYzK9ToryplLmBoUty non5Ww9F3OvK7m7lbpyWftjk3bFLhPlcUNEp4vdXvKhwjXfeOp1Xpz+i3OwSLqzViH4y esL1GUpraWy86f4tKj7YTHbSGjj/hHgwdHfLrj4EspGJDiWWXeawA0des1Pan7X7qtER msJA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741193553; x=1741798353; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=igUrSwpM829khWSgnZtJRplZak9Hy3/fYvzPQ4teyss=; b=uWHEBxhJSWjVEL0j0PWOg1c+1xvxntnevADvMmSEZO9hv6ZxjWrBQxl6UP9K71Gg9d XGHojngziEMrzbIayTrkPlZh4xPzhOrQPnXrlMRPtHPTZLkouUkabh+D1//uWsTN+28d p78Nzuksc/SVdb7LOcuBTcUPLHIKk0nQOVvippyd4S6xVj/ODVul1B5pWrSGmowYMMNR GMucuzdgx31teT5LtTc8aMQtbSHzh5LAXBwM9g0hqBos7Jpg/zPH+feQHaKtTNnxvaXG 3FWs7QsvhXbFPuM18onktKam8HUyXoOmW6PMQsYGqjhNSwnhAAHqnKnDqgvTfzGEa46E 5+zg== X-Forwarded-Encrypted: i=1; AJvYcCWUeNhMtrCBvLw7NFVT7sdr4oWEFAWjtOrY2/Ha6DK9CoCPE7MYHM1btZg+BYpAT9xSbK/d/DTVdyV8@nongnu.org X-Gm-Message-State: AOJu0Yyyq+4tDeEg+u/PJbFR41OiDLOZwd8qW7WntmotAFkbBVrYtSCq lQfu3jCRxrAWkTOT+PZXrHxabD7sLbcbJBLrcOXgbe2lwkrs6B5/qYdCd36P581AfEbeGV1gqzN 9mRCflArCXt9R2xUAeLtZNWo0V+//XUg3g5DAuA== X-Gm-Gg: ASbGncvHgRJF3x5C0G4MlE9/Ti9ukllT2p2T9ftxhiDjT7vErV6kxnJv9MX+BRrD5FD uqqZYk2m9CA8HPGTUzamyuMJfscs7wGc0Na4XzqxHPW/GGUuLD3cF60FBImiOOC8CixSJlUFpjZ 3k6SFdqs2HowXI8iEZbwJvEwM8rJY= X-Google-Smtp-Source: AGHT+IGHip7qXEwbF37JJ6dixVrpeF/0m+R7g/3VkH1lK5+kgrfYR83hCS2uCgWf3JaaNMRAwsZD+rGFL+WRbG/SUaY= X-Received: by 2002:a05:6902:18c7:b0:e60:9d12:c1db with SMTP id 3f1490d57ef6-e611e311923mr4854866276.31.1741193553720; Wed, 05 Mar 2025 08:52:33 -0800 (PST) MIME-Version: 1.0 References: <20250227141343.1675415-1-peter.maydell@linaro.org> <87o6yh57r2.fsf@draig.linaro.org> <2de21adf-204b-4417-aa2b-2d16d22148f8@oss.qualcomm.com> In-Reply-To: <2de21adf-204b-4417-aa2b-2d16d22148f8@oss.qualcomm.com> From: Peter Maydell Date: Wed, 5 Mar 2025 16:52:22 +0000 X-Gm-Features: AQ5f1Jpk-Z9MGBddkvVIDe2HIHLlXKILHqmEwGs4hxl2GYZ50_JBxVRQi-oyRB0 Message-ID: Subject: Re: [PATCH] tests/tcg: Suppress compiler false-positive warning on sha1.c To: Brian Cain Cc: =?UTF-8?B?QWxleCBCZW5uw6ll?= , qemu-arm@nongnu.org, qemu-devel@nongnu.org Content-Type: text/plain; charset="UTF-8" Received-SPF: pass client-ip=2607:f8b0:4864:20::b29; envelope-from=peter.maydell@linaro.org; helo=mail-yb1-xb29.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 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 On Wed, 5 Mar 2025 at 14:56, Brian Cain wrote: > I was going to volunteer to update the toolchain used for hexagon to > address this. But unfortunately this warning is still not supported in > clang 21. > > https://github.com/llvm/llvm-project/issues/72455 sounds like it's not > very likely to arrive any time soon. > > > So "-Wno-unknown-warning-option" does indeed seem like a good workaround. I think the main problem with clang is that it doesn't default to "don't complain about unknown warning options", whereas gcc does: e104462:noble:qemu$ gcc -Wno-bang -o /tmp/hello /tmp/hello.c e104462:noble:qemu$ clang -Wno-bang -o /tmp/hello /tmp/hello.c warning: unknown warning option '-Wno-bang' [-Wunknown-warning-option] 1 warning generated. -- PMM