From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from resqmta-po-05v.sys.comcast.net (resqmta-po-05v.sys.comcast.net [IPv6:2001:558:fe16:19:96:114:154:164]) by sourceware.org (Postfix) with ESMTPS id C72E13858004 for ; Sat, 28 Nov 2020 18:48:09 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org C72E13858004 Received: from resomta-po-20v.sys.comcast.net ([96.114.154.244]) by resqmta-po-05v.sys.comcast.net with ESMTP id j4PkktgOabX9Qj5GTkeg9I; Sat, 28 Nov 2020 18:48:09 +0000 Received: from pkoning.akdesign.com ([73.60.223.101]) by resomta-po-20v.sys.comcast.net with ESMTPA id j5GRkq1zLfcCbj5GSkIFmh; Sat, 28 Nov 2020 18:48:09 +0000 X-Xfinity-VAAS: gggruggvucftvghtrhhoucdtuddrgedujedrudehiedguddulecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucevohhmtggrshhtqdftvghsihdpqfgfvfdppffquffrtefokffrnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpegtggfuhfgjfffgkfhfvffosehtqhhmtdhhtddvnecuhfhrohhmpefrrghulhcumfhonhhinhhguceophgruhhlkhhonhhinhhgsegtohhmtggrshhtrdhnvghtqeenucggtffrrghtthgvrhhnpedvtdevjeeuhefhiedvteffjeeuffehkefgudeutdevffefkeeijeelfeevuefhgeenucfkphepjeefrdeitddrvddvfedruddtudenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhephhgvlhhopehpkhhonhhinhhgrdgrkhguvghsihhgnhdrtghomhdpihhnvghtpeejfedriedtrddvvdefrddutddupdhmrghilhhfrhhomhepphgruhhlkhhonhhinhhgsegtohhmtggrshhtrdhnvghtpdhrtghpthhtohepmhgrtghroheslhhinhhugidqmhhiphhsrdhorhhgpdhrtghpthhtohepghgttgdqphgrthgthhgvshesghgttgdrghhnuhdrohhrgh X-Xfinity-VMeta: sc=-100.00;st=legit Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\)) Subject: Re: [PATCH 00/31] VAX: Bring the port up to date (yes, MODE_CC conversion is included) From: Paul Koning In-Reply-To: Date: Sat, 28 Nov 2020 13:48:06 -0500 Cc: GCC Patches Content-Transfer-Encoding: quoted-printable Message-Id: <7F21C35F-7212-4B00-9D60-353327C0DF29@comcast.net> References: To: "Maciej W. Rozycki" X-Mailer: Apple Mail (2.3445.104.17) X-Spam-Status: No, score=-3.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, JMQ_SPF_NEUTRAL, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Nov 2020 18:48:11 -0000 > On Nov 25, 2020, at 12:07 PM, Maciej W. Rozycki = wrote: >=20 > On Mon, 23 Nov 2020, Paul Koning wrote: >=20 >>> ... >=20 >> I've hacked together a primitive newlib based "bare metal" execution=20= >> test setup that uses SIMH, but it's not a particularly clean setup. =20= >> And it hasn't been posted, I hope to be able to do that at some = point. >=20 > Hmm, I gather those systems are able to run some kind of BSD Unix: = don't=20 > they support the r-commands which would allow you to run DejaGNU = testing=20 > with a realistic environment PDP-11 hardware would be usually used = with,=20 > possibly on actual hardware even? I always feel a bit uneasy about = the=20 > accuracy of any simulation (having suffered from bugs in QEMU causing=20= > false negatives in software verification). Fair enough. But SIMH is a full system emulator with a very large = amount of history and expertise involved in its creation. It's also = known to run every PDP-11 OS and most diagnostics. Yes, it certainly = runs BSD 2.x; the reason I didn't use that approach is that I don't know = it well.=20 > While I would expect old BSD libc to miss some of the C language = features=20 > considered standard nowadays, I think at least the C GCC frontend = runtime=20 > (libgcc.a) and the test suite do not overall rely on their presence, = and=20 > any individual test cases that do can be easily excluded. >=20 >> Thanks for the fix. >=20 > I take it as an approval and will apply the change then along with the=20= > rest of the series. Thank you for your review. I should have been explicit. Yes, I approve that change, thanks. paul