From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f44.google.com (mail-wr1-f44.google.com [209.85.221.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B1E7A2FFDDA for ; Mon, 1 Sep 2025 13:26:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756733192; cv=none; b=IFIfyywb3h516im6jmpiOjomqTMxT1TsrmETIsrbyo3lsVICuY8jsh03c53NPOOpLkpK/sNLYV635u+YQF9NH+E6taDwBQBo/NlT5QAXxH0jA8vHajVDyULgre3/0vgiouiW4vDy5/yXM54wleMPNPNaS0GrlNGkFJciiuy5VoI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756733192; c=relaxed/simple; bh=4G7VCowQgnpa73GrSbdxFo/EFrOsy6Q84wFnpyATMQA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=s0LN+aUK0ymVt7aVJAnRX5cY6ys9S+J4kzRS4sE8VuSSdBcyI1HgzutD4ruQP+CSek6SiDjqweBdeIdBNDSYtTLhZtR5klUU8V7DZAIjFk2jSfUHpMEPtSLc6Zg3Gqr07z2FTJ7F0luJOKpNotDxkndGNevCkBKaCXXpghAJ3K8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=hwfEIfwL; arc=none smtp.client-ip=209.85.221.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="hwfEIfwL" Received: by mail-wr1-f44.google.com with SMTP id ffacd0b85a97d-3d965477dc0so1531f8f.2 for ; Mon, 01 Sep 2025 06:26:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1756733189; x=1757337989; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=vMiNyuN8vCGx4gQ6SgirNIsSrqkqFDJsdJQQNQ3ScD8=; b=hwfEIfwLbE9ysIlP9t9YwLZT3NcHSaZr5rJQSxHwmnoiYTIv27HhERUTa/SLr6iXv7 odxfKLbvuKvtyFwNOCz7xAQK0seLcjTKFYGnUsMbdfumwzup0clfrCDnoFY1c4ksUoNZ 13+5U1BkrU0w7IYX7qYo/IxMOHSjrcGYIkhYzJDbTlfIkN6Qlly/9evBe1/gq155m/4b 0tiXbWviXF3S9d/sb9U+Ve1uvTX6DPyVNlXKhm6ILXvIPUvZDnBZ8zIDUQlXtrC3/mMU 35lL+fgzqB11hPnxZViVglb1kEQlYhF/r67tDeTsaAlFWR2ys+6R8zP40gG3ivCaDgEn fWXA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1756733189; x=1757337989; 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=vMiNyuN8vCGx4gQ6SgirNIsSrqkqFDJsdJQQNQ3ScD8=; b=dfEQFWrwe1RS5gG48An3EP8tcQkOJaUwFCv65pNnHCrYKA5hMGk/ZTJUqcl9UYrvRR dFcoI3phfyFF2qp/zy6A1kMfPgFQIT6z7xStA+VFMNLF70AKCk3vbeKpMzmbeRPpUA4E tpmARpgANno1gas3Rv7bImbf8PSLWBmbCaWwGdxQhnPmsNWK/fegRxK0QlBN2PIMx6yM ceQMQDh3vmtSe3FJbWX93hGQ9jd6ePZO4/ZxooDg7ITtYsCtW/56QbcQD6gFpa8bQiUh TIfPoEUdCbO968WE8rEDLXNhxv9OcCjM7u3OnyAJdWaW2JlQcPdPgRwzCfrILyPgPlKx ZY5g== X-Forwarded-Encrypted: i=1; AJvYcCXbP5PW5sD8VS6uTdMTPkSyBJDAy09Eewd5Ym4Zij+M985T/vFpoSkYcZQ3eLF94tr2610=@vger.kernel.org X-Gm-Message-State: AOJu0Ywmrbhe6vwd2CRXuovBgu6V9G+PlOvnYXrLj9AhgLto5s+pSDnJ uxJgtuJt1GiZqj3qHfIqmGTFEKC63TiIGTnNNA9a4Xkm2nv77ifU1rK84x1Oyl47rtM= X-Gm-Gg: ASbGncttrbq4GxuNVHTFlZJCFC02fITHziReH2dVVxesJlYDtmNZmaKm59A6ZgPkSgu 5f9KFsppMtTXPIMh0lDT45QIsL2a9SI5GXanQS2AkMRF7sWga0g82mRzm8fyF/7n1zomxLwnXig 0YN1q6LQB0HPr9CYUXwoaYV1tOhU2yCFVnFRkOWT+JzLMC4u486E+NnrfeNjKBPo9BJqNjYrFTN qFcv+BN+M49afXrZGBecEGqK7gKWNUm66cNqE1TC9vf9pq4R32x5lCv+jy5SQs+IhmBWtguP4IJ ZjyRvFGO4t1SoAH5c4qh60t10cYQfbV/CrFYCdTaSvPwfp8KqH3ZeFnjCzBU4Aa06sH3GzIlKEF m0xswP4JM8o02joVOgT/6//tOj/uBLsGM1LUppTnPvonaUxJmimpLNFYeRSKNkQCtepugUKnY X-Google-Smtp-Source: AGHT+IGvMZjAB7w3flVb9fpv8Ycj4IjlLC96zH/J1Wz7eo4dvSyKyjK/lO7Gxvgzr6WwfpI7VugvTQ== X-Received: by 2002:a05:6000:218a:b0:3d2:aadc:296 with SMTP id ffacd0b85a97d-3d2aadc060bmr3196475f8f.16.1756733188895; Mon, 01 Sep 2025 06:26:28 -0700 (PDT) Received: from localhost.localdomain (88-187-86-199.subs.proxad.net. [88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3d0a1f807f9sm14484129f8f.38.2025.09.01.06.26.27 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 01 Sep 2025 06:26:28 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Paolo Bonzini , qemu-ppc@nongnu.org, Peter Maydell , Harsh Prateek Bora , Stefan Hajnoczi , Nicholas Piggin , Chinmay Rath , kvm@vger.kernel.org, Glenn Miles , Thomas Huth , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v2 0/3] system: Forbid alloca() Date: Mon, 1 Sep 2025 15:26:23 +0200 Message-ID: <20250901132626.28639-1-philmd@linaro.org> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Eradicate alloca() uses on system code, then enable -Walloca to prevent new ones to creep back in. Since v1: - Convert KVM/PPC (Peter) - Update doc (Alex) Philippe Mathieu-Daudé (3): target/ppc/kvm: Avoid using alloca() buildsys: Prohibit alloca() use on system code docs/devel/style: Mention alloca() family API is forbidden docs/devel/style.rst | 4 ++-- meson.build | 4 ++++ target/ppc/kvm.c | 3 +-- 3 files changed, 7 insertions(+), 4 deletions(-) -- 2.51.0