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[99.139.148.170]) by smtp.gmail.com with ESMTPSA id k187sm3639344oif.5.2020.08.10.06.24.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 Aug 2020 06:24:18 -0700 (PDT) To: Noel Chiappa , tuhs@minnie.tuhs.org References: <20200810131232.14B6E18C082@mercury.lcs.mit.edu> From: Will Senn Message-ID: <2cd016ff-3441-2c0e-ec22-85cba2b67293@gmail.com> Date: Mon, 10 Aug 2020 08:24:17 -0500 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20200810131232.14B6E18C082@mercury.lcs.mit.edu> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Subject: Re: [TUHS] 211bsd kermit working X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On 8/10/20 8:12 AM, Noel Chiappa wrote: > > From: Will Senn > > > $c > > 0177520: ~signal(016,01) from ~sysinit+034 > > 0177542: ~sysinit() from ~main+010 > > 0177560: _main() from start+0104 > > > If this means it got signal 16... or 1 from the sysinit call (called > > from main) > > I'm not sure that interpretation is correct. I think that trace shows signal() > being called from sysinit(). > > On V6, signal() was a system call which one could use to set the handlers for > signals (or set them to be ignored, or back to the default action). In. 2.11 > it seems to be a shim layer which provides the same interface, but uses > the Berserkly signal system interface underneath: > > https://www.tuhs.org/cgi-bin/utree.pl?file=2.11BSD/include/signal.h > https://www.tuhs.org/cgi-bin/utree.pl?file=2.11BSD/man/cat3/signal.0 > > So maybe the old binary for kermit is still trying to use the (perhaps > now-removed) signal system call? > > Noel > Noel, That makes a lot more sense. I'm still trying to locate source. Thanks, Will -- GPG Fingerprint: 68F4 B3BD 1730 555A 4462 7D45 3EAA 5B6D A982 BAAF