From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: poffice@blade.nagaokaut.ac.jp Delivered-To: poffice@blade.nagaokaut.ac.jp Received: from kankan.nagaokaut.ac.jp (kankan.nagaokaut.ac.jp [133.44.2.24]) by blade.nagaokaut.ac.jp (Postfix) with ESMTP id 8925B17DBF47 for ; Thu, 9 Oct 2014 16:34:55 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (smtp.nagaokaut.ac.jp [133.44.2.201]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id A0F16B5D8C8 for ; Thu, 9 Oct 2014 16:18:42 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (localhost.nagaokaut.ac.jp [127.0.0.1]) by funfun.nagaokaut.ac.jp (Postfix) with ESMTP id 9762297A836 for ; Thu, 9 Oct 2014 16:18:44 +0900 (JST) X-Virus-Scanned: amavisd-new at nagaokaut.ac.jp Authentication-Results: funfun.nagaokaut.ac.jp (amavisd-new); dkim=fail (1024-bit key) reason="fail (message has been altered)" header.d=sendgrid.me Received: from funfun.nagaokaut.ac.jp ([127.0.0.1]) by funfun.nagaokaut.ac.jp (funfun.nagaokaut.ac.jp [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XG59XPA_Zt2z for ; Thu, 9 Oct 2014 16:18:44 +0900 (JST) Received: from voscc.nagaokaut.ac.jp (voscc.nagaokaut.ac.jp [133.44.1.100]) by funfun.nagaokaut.ac.jp (Postfix) with ESMTP id 1C0F397A82C for ; Thu, 9 Oct 2014 16:18:44 +0900 (JST) Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by voscc.nagaokaut.ac.jp (Postfix) with ESMTP id 6B07B952443 for ; Thu, 9 Oct 2014 16:18:38 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 1A98C120455; Thu, 9 Oct 2014 16:18:31 +0900 (JST) X-Original-To: ruby-core@ruby-lang.org Delivered-To: ruby-core@ruby-lang.org Received: from o10.shared.sendgrid.net (o10.shared.sendgrid.net [173.193.132.135]) by neon.ruby-lang.org (Postfix) with ESMTPS id C0E73120443 for ; Thu, 9 Oct 2014 16:18:27 +0900 (JST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sendgrid.me; h=from:to:references:subject:mime-version:content-type:content-transfer-encoding:list-id; s=smtpapi; bh=wgttlFV4F3VZge1hF9M1+yR2szY=; b=RmoovmoGgih3Huzwi4 lA9MYUGZ3JlszI6JvcrNfMu2TL6v7Cr2Zn+uJ7gWP5i0Fp1DaRLZfXfoY3HMjIfC 1SsEohvF7jGgpZL+I6XXQHjBPDuCPpU8WwNOBmzH221eoZgudcsDZ/qvSTSE4wyn 0niltbjvwVpb3RiCDodl73V5s= Received: by filter0072p1mdw1.sendgrid.net with SMTP id filter0072p1mdw1.31458.543636C02 2014-10-09 07:18:24.646828809 +0000 UTC Received: from herokuapp.com (ec2-54-91-146-217.compute-1.amazonaws.com [54.91.146.217]) by ismtpd-013.iad1.sendgrid.net (SG) with ESMTP id 148f3c5e020.5822.6743d for ; Thu, 09 Oct 2014 07:18:24 +0000 (GMT) Date: Thu, 09 Oct 2014 07:18:24 +0000 From: billk@cts.com To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Redmine-MailingListIntegration-Message-Ids: 39835 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 8543 X-Redmine-Issue-Author: alvoskov X-Redmine-Issue-Assignee: ko1 X-Redmine-Sender: spatulasnout X-Mailer: Redmine X-Redmine-Host: bugs.ruby-lang.org X-Redmine-Site: Ruby Issue Tracking System X-Auto-Response-Suppress: OOF Auto-Submitted: auto-generated X-SG-EID: ync6xU2WACa70kv/Ymy4QrNMhiuLXJG8OTL2vJD1yS7wjIIQWijEn9Do7wE0zmDbF3VLwiO8k/DrNiqQzPiu9N7LFztOWijo2WFj9Qq1n4pjUGlZzC4Ro2hy7bwvMNkSyaaE5FPRfD++yK9C9V8QD4lkSccKCAzRN03rmvHihXKtejGLv1UK3TbY6+f2VuY5 X-ML-Name: ruby-core X-Mail-Count: 65555 Subject: [ruby-core:65555] [ruby-trunk - Feature #8543] rb_iseq_load X-BeenThere: ruby-core@ruby-lang.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Ruby developers List-Id: Ruby developers List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #8543 has been updated by B Kelly. Hi, Koichi Sasada wrote: > Thank you for your report. > > I'll check it (best effort. I ask my boss about priority). Sorry to be the squeaky wheel, but I was wondering if there still might be a chance to look into this before 2.2 is released? I attempted a `git bisect` this evening in the hope of narrowing down where the iseq.load problems began -- however I ran into a problem of being unable to build ruby-trunk prior to this patch: commit 434826c0e9d3e3b48d99a39b7ad7626a6f1ae2eb Author: kazu Date: Wed Jul 31 13:01:57 2013 +0000 * parse.y: fix build error with bison-3.0. And unfortunately the iseq.load problem already existed by that point. (I wonder how best to proceed with the bisect. I suppose one could write a script to attempt to apply the parse.y patch at each stage...) Very much hoping iseq.load might be fixable before 2.2 code freeze. Thanks & Regards, Bill ---------------------------------------- Feature #8543: rb_iseq_load https://bugs.ruby-lang.org/issues/8543#change-49316 * Author: Alexey Voskov * Status: Open * Priority: Low * Assignee: Koichi Sasada * Category: YARV * Target version: current: 2.2.0 ---------------------------------------- I noticed an unusual behaviour of undocumented rb_iseq_load function. Its work differs in different Ruby versions. I'm trying to protect some Ruby source code by its conversion to YARV p-code and using the next strategy: 1. Convert code to array ~~~ruby data = RubyVM::InstructionSequence.compile_file('hello.rb').to_a ~~~ 2. Pass a compiled source to the rb_iseq_load function and evaluate it ~~~ruby iseq = iseq_load.(data) iseq.eval ~~~ Sample programs are supplied in the attachments. "hello.rb" ```ruby puts "tralivali" def funct(a,b) a**b end 3.times { |i| puts "Hello, world#{funct(2,i)}!" } ``` The differences Ruby 1.9.3 (ruby 1.9.3p194 (2012-04-20) [i386-mingw32]) Correct work. Output: ``` tralivali Hello, world1! Hello, world2! Hello, world4! ``` Ruby 2.0.0 (ruby 2.0.0p193 (2013-05-14) [x64-mingw32]) Incorrect work (omits the code inside code blocks). Output ``` tralivali ``` Attempts of loading bigger programs by means of rb_iseq_load in Ruby 2.0.0 usually ends with a segmentation fault. Such behaviour also can be reproduced by means of iseq Ruby extension ("for iseq freaks") https://github.com/wanabe/iseq P.S. I understand that it is an undocumented feature. ---Files-------------------------------- hello.rb (102 Bytes) rb_pack.rb (931 Bytes) iseq-load-test3.rb (210 Bytes) iseq-load-test3-file.rb (369 Bytes) please-fix-rb_iseq_load-thank-you.pdf (444 KB) -- https://bugs.ruby-lang.org/