From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) (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 148F514A0AA for ; Thu, 29 Aug 2024 06:21:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724912481; cv=none; b=CIisy3awUh7peDs7gmsYzOTyDdBXhfeeYDlLWPHextB/WZaeO6eQ26ymCqk8izqF0cWMU7W4GC0Hzm53qieUT6Zelwvd3nnBxkIVWdCCElKCH549ReFrqdUf96IQu+NXRoBQBsc/5A5MSBEKco3Qv2h6f0nH8LvlOH7ZV/YjoGk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724912481; c=relaxed/simple; bh=Vjjjvvb5mHP4PULF2eWurF7CmhN6x/I0alZhH7y/ArM=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=BIRQ8yDEb5zKU9XapikLHBtpJN+jHrog2u8+6Zo0aBNum83Lor2g15q8mBE8Ok9FfAtt+pm6KLaKltLeM0df0mO0RPyKaLucdK7aiKoXXM2jEyr6F0+ZZU0cWoNmfE10vl7URBK0FmHvYa0cxyJ41aP+pj50ZJJCAnebLJPPI1Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=S2WX25fW; arc=none smtp.client-ip=209.85.214.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="S2WX25fW" Received: by mail-pl1-f180.google.com with SMTP id d9443c01a7336-1fee6435a34so2060035ad.0 for ; Wed, 28 Aug 2024 23:21:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1724912479; x=1725517279; darn=vger.kernel.org; h=mime-version:user-agent:content-transfer-encoding:references :in-reply-to:date:cc:to:from:subject:message-id:from:to:cc:subject :date:message-id:reply-to; bh=Vjjjvvb5mHP4PULF2eWurF7CmhN6x/I0alZhH7y/ArM=; b=S2WX25fWIf8DlLnRIcUntT22F+vaDsTPqdnXb++45zDE74A46vlbPKu9GbU8PykANg SrZ8MkK69SDRNS3hTR6jlAF/9jPhLviL0SexPjfB4MosEconle97ir+qL8bNZgbZ7a6l CGOBqmaTnAKN/zLkguwZBr/sgUfaMlpwWRgKoutFWbOTmO/mD97DHXbfO16sRPvyPffs XEbVHQqmUBY6MngLXgxLGjMvwGq9nHCxqbLilX1WqZx1veKl3LcPACt4etnRmV29ooBA SMuZuAaTzx7UQCNA+XzYhJd/qgB/XDqitmVwoZSd4jY9nP00QM3k8VJ69p5T7A5vVhlH ZIOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724912479; x=1725517279; h=mime-version:user-agent:content-transfer-encoding:references :in-reply-to:date:cc:to:from:subject:message-id:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Vjjjvvb5mHP4PULF2eWurF7CmhN6x/I0alZhH7y/ArM=; b=ZI5D3vy8XMmn7CbUShLrP+6w+rGJRvJ4ayn1E66fQAbH7bQOrX/L/1Fgc9MxRjLgpt d4kT55+G1FpOFhKurs6FDMtLE4C9y/YcpP5/Ci4/imT6IL03gmKf5Sx2VmOhmrFsF8Hf shvlf+gLDBX4l8rWE7RjLgwoGcXqdcsTwra7JERJGSUUcyzaWqrmuP5hQ5c8kBHZl/NJ A6zhjS+PEGJOkyoPRxyIUL5fNl13t39t6BY8r2iySMxGb0e2S5/yEUshOZrZWa1aGs3p WhkMJPhnAVvJmKceZIojZobrZKqm+DyBIM3Qgv+/lbwtM2y2JD2SqPhoZoFPPpN6/2mQ 5ssA== X-Forwarded-Encrypted: i=1; AJvYcCX94IBLH7qZyg8an854UgonLdeAP705nsiotsKoJ0wH5lTY7wEPXYt3qOFpUGkdJtSjJmQ=@vger.kernel.org X-Gm-Message-State: AOJu0YzJ/04Sxf6eA9dw6Ng9WKVkY7r6heFvXJ1UySkLOkYEfNhYBE9R iS0ktvJX4CVjhRT1DoKOzllCEmtGAYs18kMcLITT2EtwWNDX2qEt X-Google-Smtp-Source: AGHT+IEb8kVjfZ2ZhvMlKrKKJIBFc16hoBlG7RfeELq2imH6it8Kw1/scUfrVYDJ9iFRaNyTHqTSmw== X-Received: by 2002:a17:902:e884:b0:202:3dcf:8c46 with SMTP id d9443c01a7336-2050c49f0admr18739655ad.61.1724912479219; Wed, 28 Aug 2024 23:21:19 -0700 (PDT) Received: from [192.168.0.235] ([38.34.87.7]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-205155557e4sm4498505ad.281.2024.08.28.23.21.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Aug 2024 23:21:18 -0700 (PDT) Message-ID: Subject: Re: [PATCH v4 bpf-next 8/9] selftests/bpf: A pro/epilogue test when the main prog jumps back to the 1st insn From: Eduard Zingerman To: Martin KaFai Lau , bpf@vger.kernel.org Cc: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , Yonghong Song , Amery Hung , kernel-team@meta.com Date: Wed, 28 Aug 2024 23:21:14 -0700 In-Reply-To: <20240827194834.1423815-9-martin.lau@linux.dev> References: <20240827194834.1423815-1-martin.lau@linux.dev> <20240827194834.1423815-9-martin.lau@linux.dev> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.52.4 (3.52.4-1.fc40) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Tue, 2024-08-27 at 12:48 -0700, Martin KaFai Lau wrote: > From: Martin KaFai Lau >=20 > This patch adds a pro/epilogue test when the main prog has a goto insn > that goes back to the very first instruction of the prog. It is > to test the correctness of the adjust_jmp_off(prog, 0, delta) > after the verifier has applied the prologue and/or epilogue patch. >=20 > Signed-off-by: Martin KaFai Lau > --- Acked-by: Eduard Zingerman [...]