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 A7D7017CF235 for ; Fri, 27 Jun 2014 08:20:01 +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 B5318B5D8AE for ; Fri, 27 Jun 2014 08:40:29 +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 A53E297A853 for ; Fri, 27 Jun 2014 08:40:30 +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 JlEk8WCQV2w2 for ; Fri, 27 Jun 2014 08:40:30 +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 0F2A597A850 for ; Fri, 27 Jun 2014 08:40:30 +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 C6D2D952439 for ; Fri, 27 Jun 2014 08:40:22 +0900 (JST) Received: from [221.186.184.76] (unknown [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 50D1C1204DC; Fri, 27 Jun 2014 08:40:14 +0900 (JST) X-Original-To: ruby-core@ruby-lang.org Delivered-To: ruby-core@ruby-lang.org Received: from o2.heroku.sendgrid.net (o2.heroku.sendgrid.net [67.228.50.55]) by neon.ruby-lang.org (Postfix) with ESMTPS id 095EF120420 for ; Fri, 27 Jun 2014 08:40:10 +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=t/rcXEuXLMtj+8eD637+kNo+MXo=; b=Quz4+ena3uRqX2xcDE kttJRifMMXe4oe4Ne170b7TDCEMwo9n8kcjmOEXsY/VOFTLvwLdIJt5mM6x5ZmbL +RrkQhgETFog+otNu6Ia/VTtlPj0MNfp7fN6Jg6UtpTcqL/Om8foVNRSxp2ENkms j04hEzrsSIPKStZ2kNKC6SYKg= Received: by mf200.sendgrid.net with SMTP id mf200.10277.53ACAF589 2014-06-26 23:40:08.238205378 +0000 UTC Received: from herokuapp.com (ec2-54-83-67-76.compute-1.amazonaws.com [54.83.67.76]) by ismtpd-028.iad1.sendgrid.net (SG) with ESMTP id 146da8cea14.3625.190cf0 for ; Thu, 26 Jun 2014 23:40:06 +0000 (GMT) Date: Thu, 26 Jun 2014 23:40:06 +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: 37400 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS63pRhLNnXdQaz1HV4y1PJsOgJpEvTIbc7Crr7S0rL9rmlntT4UbPsrHmkFw0EH4UOAswONmeu3kCtUfsyaLgVDcsnlQ+Aig5pOpm9dhlQacyzBUUSZ0k7ztm2y2HHjYzE= X-SendGrid-Contentd-ID: {"test_id":"1403826008"} X-ML-Name: ruby-core X-Mail-Count: 63353 Subject: [ruby-core:63353] [ruby-trunk - Bug #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. File please-fix-rb_iseq_load-thank-you.pdf added Salutations, Attached is a one-page PDF slide for the Ruby 2.2 feature proposal developer meeting. It describes our use case for rb_iseq_load, per: [ruby-core:63332] [ANN] Request for "slide-show" of your feature proposal Thank you! Bill ---------------------------------------- Bug #8543: rb_iseq_load https://bugs.ruby-lang.org/issues/8543#change-47403 * Author: Alexey Voskov * Status: Open * Priority: Low * Assignee: Koichi Sasada * Category: YARV * Target version: current: 2.2.0 * ruby -v: ruby 2.0.0p234 (2013-06-19 revision 41434) [x86_64-darwin11.4.2] * Backport: 1.9.3: DONTNEED, 2.0.0: REQUIRED ---------------------------------------- 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 data = RubyVM::InstructionSequence.compile_file('hello.rb').to_a 2) Pass a compiled source to the rb_iseq_load function and evaluate it iseq = iseq_load.(data) iseq.eval Sample programs are supplied in the attachments. "hello.rb" --------------------------- 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/