From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Noam Postavsky Newsgroups: gmane.emacs.bugs Subject: bug#6430: Emacs WINDOWS truncates exit status of processes to 8 bits Date: Tue, 14 Jun 2016 17:48:22 -0400 Message-ID: References: <1310.80.58.205.52.1276622459.squirrel@correo.ozu.es> <831t3zg7or.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1465941523 13389 80.91.229.3 (14 Jun 2016 21:58:43 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 14 Jun 2016 21:58:43 +0000 (UTC) Cc: macross84@ozu.es, 6430@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Jun 14 23:58:32 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bCwKg-0004Wt-Pr for geb-bug-gnu-emacs@m.gmane.org; Tue, 14 Jun 2016 23:57:14 +0200 Original-Received: from localhost ([::1]:38441 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bCwKf-0007CO-PR for geb-bug-gnu-emacs@m.gmane.org; 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Tue, 14 Jun 2016 21:49:02 +0000 Original-Received: (at 6430) by debbugs.gnu.org; 14 Jun 2016 21:48:30 +0000 Original-Received: from localhost ([127.0.0.1]:40915 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bCwCE-0006Yq-AN for submit@debbugs.gnu.org; Tue, 14 Jun 2016 17:48:30 -0400 Original-Received: from mail-oi0-f43.google.com ([209.85.218.43]:35870) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bCwCC-0006Ye-EQ for 6430@debbugs.gnu.org; Tue, 14 Jun 2016 17:48:28 -0400 Original-Received: by mail-oi0-f43.google.com with SMTP id p204so5651240oih.3 for <6430@debbugs.gnu.org>; Tue, 14 Jun 2016 14:48:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=kXjSEpH6LOtVpMUKppFEIPX8t0mk0I1IMBT054m2hHI=; b=EkMsWBSsrrSbXWws21y5iKFDu3e5jBP2uw1vgUNmEOX/Mt1p32aG663ujAVjZEv95k tMAs0TyJtnG25ZyclvGsw9ZgFZCH+QiuNWgQpOUQXgTJaon0pihvyVjZ1OY8y76TRnnx lZbWtiBULDqXxgF/b2CbrZCJ4UzJu5nqxE78QCpZ29SOugIk7qOPMNspoJjg6JV38iDf rJAtBwjVMSIH34GN4++QC1ogtqabAVUgl0IJNNjcWSujeOIqBjDoF6Ep1/ziN8sQJoP5 mnAqXcvINuYebyCgNP7TSq0W3+2pkOQtdHjvQ3W6aX7id6VIHdKrerdMbS7yEwlskoox 2O4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=kXjSEpH6LOtVpMUKppFEIPX8t0mk0I1IMBT054m2hHI=; b=XR3qWdq4RuTFOC0Y/oUCDXrbxeU646ME5a/JMn2lKrUEJWGSaODgkgcVQ6sXu5dc7p r98rORxvuwvHUc1aQq2KJuWvWwPk0pmyLZjPqIE9t+xR8lma7eHfPAEjYvLlcZzf2egU yV4vUqnJmWjSJG1+HiQNCrlQiXVdlyopswW6xqDnSu9RNFCGwjuGcu35HcTB88lW06rt qTs1ts5S37Nc+pEv5CeXk/RIdVVtECi27hZxfu5ehCxthUy9tgmDal8a79k8GGJBRIoW V0JS86mMpW6B5SrAdhtRTdAzvKNdkENa8EPU5g34J0mDsjwRQC9XMCmedO8UdA64cOGH bIOA== X-Gm-Message-State: ALyK8tKDSE/LeQrBVmLyAaJ13GSwjh91qEke/3G6gsX5yR1qSzkILKfrD/QIGwTOrimQ19UaXu7WiCSI1a6uYQ== X-Received: by 10.157.1.107 with SMTP id 98mr12550728otu.17.1465940902818; Tue, 14 Jun 2016 14:48:22 -0700 (PDT) Original-Received: by 10.157.5.168 with HTTP; Tue, 14 Jun 2016 14:48:22 -0700 (PDT) In-Reply-To: <831t3zg7or.fsf@gnu.org> X-Google-Sender-Auth: GjdV-ltlfhkVfmxuyswI_P6gVvs X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:119558 Archived-At: On Tue, Jun 14, 2016 at 10:35 AM, Eli Zaretskii wrote: > All the above is true, but I don't understand the original complaint. My understanding of the original complaint is that if you compile the program below: #include int main(int argc, char *argv[]) { return atoi(argv[1]); } /* (call-process (expand-file-name "exit-arg1.exe") nil nil nil "300") ;=> 44 */ To lisp programs the exit status gets truncated to 8 bits, whereas running from cmd.exe: C:\Users\npostavs\src\emacs\bug-6430-w32-exit-rc>exit-arg1.exe 300 C:\Users\npostavs\src\emacs\bug-6430-w32-exit-rc>echo %errorlevel% 300 > Emacs doesn't truncate exit status of subprocesses in any way, it > retrieves the full value of the status, and then reformats it > according to what the Posix-style WIF* macros (which Emacs uses > elsewhere) expect. No information is lost during this reformatting, > see the implementation of waitpid in w32proc.c. Not really sure what this reformatting is about, but I think the point is that the original value does not return to lisp.