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 BD05617DBF47 for ; Thu, 9 Oct 2014 17:07:45 +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 0D8CCB5D88C for ; Thu, 9 Oct 2014 16:51:33 +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 15D8797A83A for ; Thu, 9 Oct 2014 16:51:35 +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 mG-S2RgS2SXC for ; Thu, 9 Oct 2014 16:51:34 +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 BC63597A839 for ; Thu, 9 Oct 2014 16:51:34 +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 CD1AF952446 for ; Thu, 9 Oct 2014 16:51:31 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 9CF5B12047C; Thu, 9 Oct 2014 16:51:22 +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 CC644120440 for ; Thu, 9 Oct 2014 16:51:18 +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=ZzYFyJiCk0OSdklQsCdKtPOLWCU=; b=azr2ahxrOvBfJhOLa6 NZAhoKZigDBocxpKC7rTQX378VmOy96oZZTJOFo6+yeB4/4JXBTXNfuDVXgT/fge G8ebbmvY9C7oAjKek1ZOAwPvRxV6fgUe6ik1+FX6HGOzAWje3fyKR79HKtw74IdM N+gQDZtg8MTxQNuMbBlMCRYAw= Received: by filter0013p1mdw1.sendgrid.net with SMTP id filter0013p1mdw1.22764.54363E7210 2014-10-09 07:51:15.078905516 +0000 UTC Received: from herokuapp.com (ec2-54-162-51-174.compute-1.amazonaws.com [54.162.51.174]) by ismtpd-014.iad1.sendgrid.net (SG) with ESMTP id 148f3e3f0e4.2e42.10feaf for ; Thu, 09 Oct 2014 07:51:14 +0000 (GMT) Date: Thu, 09 Oct 2014 07:51:14 +0000 From: normalperson@yhbt.net 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: 39836 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 8543 X-Redmine-Issue-Author: alvoskov X-Redmine-Issue-Assignee: ko1 X-Redmine-Sender: normalperson 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS6ZzULyj99jqL0c/4e4xErEmMyCtcgFFfrKW3osocAC53DG8kY7AW/2+fkbOLcag/uSVD/qRkuYwWtHq0lKPEefyabgini+u9rIxsW5i+eAELuUbIhUzoJb3oVNq4tbGLTVyF65YUcB0EplNDO/ktSe X-ML-Name: ruby-core X-Mail-Count: 65557 Subject: [ruby-core:65557] [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 Eric Wong. billk@cts.com wrote: > 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? Not speaking for the rest of ruby-core, but I welcome occasional reminders like these :) > 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. Thanks for that data point, it was before I started mucking with iseq. Can you try installing/running an older bison? > (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...) Yes. "git bisect run" is awesome for scripting these things. ---------------------------------------- Feature #8543: rb_iseq_load https://bugs.ruby-lang.org/issues/8543#change-49317 * 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/