From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f174.google.com (mail-pl1-f174.google.com [209.85.214.174]) (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 2509F16C68F for ; Fri, 30 Aug 2024 17:36:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725039414; cv=none; b=A8YWFng2yQf6Meto0Wh/bDCchhSZU+p6tlB2lK8YpX/ji36ZqDmOAFpxjP6bNBXRSZY/mETXaNN3MiVM4tZdLpJo7+mVYgtzzzphuSM7InWj40g3fgXufvlWzDDkFZW8nvtVdy7neJMJORVDHAPr5Y3p0nXYrgnoaqmHXz6V2PE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725039414; c=relaxed/simple; bh=gkabglCfmxFQ1Ufxyk12Ux507KQQhJ6FwiObhlwD3fc=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=UoVEP3/OOeS3uNJwmtJUM+4imAlXzmMjFbStAXSAJWJfw/ykBsUmKurMeTiMs1tJSS0qOleGJqLtyD+XxFiYTKIlbK4qW9wSSA1Wq1jYJd1tVQd8uAz3dAOqCHdC7oBIcQA8w4x9KVEbqXY0o3bFyHempzVMJDH//dZ6M8aKgJk= 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=Q45FCVxY; arc=none smtp.client-ip=209.85.214.174 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="Q45FCVxY" Received: by mail-pl1-f174.google.com with SMTP id d9443c01a7336-201fae21398so15281585ad.1 for ; Fri, 30 Aug 2024 10:36:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1725039412; x=1725644212; 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=gkabglCfmxFQ1Ufxyk12Ux507KQQhJ6FwiObhlwD3fc=; b=Q45FCVxYLatfZm/XaznRCAVzAWHr1VQMXviTXuww7jqhbSIGHCtezDcq2nMYtBEXVV UYa2ABJLrTcLw/cnvjIitpPJvrAN2YiH1OM5IA9i1UsBoAyxZ2o4FTxJ50ihLg9piG6P g9QaWHgfNe5KhTSn+JtV/ycKifWdBHklwPEVjvAnvX/vV73KvbZjDq9uVSolNDAC6MS6 cYlDOU03v6RTo5qldwjxlcPI8aBryE5aXgx0FEbkipRvsBD5c0Z93jc+xpAf655eVwkw MHTESVdxHvccik8q8RLqhDlX0lhtj93CbM3T7SLljjmuy4GHr4lk6hfwp2kjzhFQyKbm 7ETA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725039412; x=1725644212; 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=gkabglCfmxFQ1Ufxyk12Ux507KQQhJ6FwiObhlwD3fc=; b=PlOi87QKgPkGJH6vaKfNPwixBn7s9/cCADl+v61faEEW75yoRGOj/9yYS6a78cg2WC deea804vuk4RZLdoiUMbFnKssp5epj0hR6jFsC/fEX27M4Jp9AyDHRYDtfaCq/8I1Ul1 2kkkqHpzc1BwKpKRbtvcHPpskxxN57Ug/YSannJ5jSDGofjgAlA9BGWywH26ILkr3trg FuOMKgxJsImZG6ukfXFilLx5yRzIjpX6yXKw04Ui+A4C6zSjGfv3f7RANWAT7voedk6g 3FnLBH3jogYv0RuZ+RNr6+AM46uz9MfMwWub4qtmoJqNyn9QUhCU+/aiDQz2XkB5Gl+0 8tHQ== X-Gm-Message-State: AOJu0YwfixcO7ooM3swqjZnC7VH6LyXzKAcyW1zlwK/Nh3DbQeGA7+L5 PKqUu+7ae2R25B8mTRcLbgY8/NBsiZiMEKQSmGb5SwLPkuaKFtnnxgKt6A== X-Google-Smtp-Source: AGHT+IEjFxog6CyxpnU6CgrBn9sh0MhAYFrhlkq+1FdVGze69UqF/H9MNenMdECCDuDrseXLSNVJAA== X-Received: by 2002:a17:902:ebc5:b0:202:3617:d53d with SMTP id d9443c01a7336-20544500724mr2164185ad.25.1725039412001; Fri, 30 Aug 2024 10:36:52 -0700 (PDT) Received: from [192.168.0.235] ([38.34.87.7]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2052b34ca27sm12987675ad.84.2024.08.30.10.36.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 30 Aug 2024 10:36:51 -0700 (PDT) Message-ID: <8409d6f7118f6b75f2b9b011068d1dd51eb3ae4e.camel@gmail.com> Subject: Re: [PATCH bpf-next] selftests/bpf: check if distilled base inherits source endianness From: Eduard Zingerman To: bpf@vger.kernel.org, ast@kernel.org Cc: andrii@kernel.org, daniel@iogearbox.net, martin.lau@linux.dev, kernel-team@fb.com, yonghong.song@linux.dev, tony.ambardar@gmail.com, alan.maguire@oracle.com Date: Fri, 30 Aug 2024 10:36:46 -0700 In-Reply-To: <20240830173406.1581007-1-eddyz87@gmail.com> References: <20240830173406.1581007-1-eddyz87@gmail.com> 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 Fri, 2024-08-30 at 10:34 -0700, Eduard Zingerman wrote: > Create a BTF with endianness different from host, make a distilled > base/split BTF pair from it, dump as raw bytes, import again and > verify that endianness is preserved. >=20 > Signed-off-by: Eduard Zingerman > --- Note: this would fail on CI unless [1] is applied. [1] https://lore.kernel.org/bpf/20240830095150.278881-1-tony.ambardar@gmail= .com/