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 68C0F17D98BC for ; Sat, 26 Jul 2014 14:20:10 +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 057D7B5D87C for ; Sat, 26 Jul 2014 14:47:17 +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 BF2C997A836 for ; Sat, 26 Jul 2014 14:47:18 +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 oS1xRfKn1Udi for ; Sat, 26 Jul 2014 14:47:18 +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 5896997A834 for ; Sat, 26 Jul 2014 14:47:18 +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 4BD3F952439 for ; Sat, 26 Jul 2014 14:47:11 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id A56B1120498; Sat, 26 Jul 2014 14:47:02 +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 1E217120036 for ; Sat, 26 Jul 2014 14:46:58 +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=2iagQc8r9A7qsPQzmk6D7MHVAKA=; b=i2ItIWBdr+99RYq+zb qER3aPNOOQSSdWPjNZQaqffk0gr6HdgivmM+JKBY9n0OKd+6BHbroHN2hxvuZVqr LaG8dTq8B2AHIq4eVYkY34DMQLPoNjDz16/n+UjYRk6M7m1zSQDLMi4fOmkNSg4s 1gl08xtD8NYmnHsQd0mc5FqIE= Received: by mf177.sendgrid.net with SMTP id mf177.31410.53D340D12 2014-07-26 05:46:57.113555811 +0000 UTC Received: from herokuapp.com (ec2-54-89-187-250.compute-1.amazonaws.com [54.89.187.250]) by ismtpd-010.iad1.sendgrid.net (SG) with ESMTP id 1477134fd6f.96e.9ec6b for ; Sat, 26 Jul 2014 05:46:43 +0000 (GMT) Date: Sat, 26 Jul 2014 05:46:43 +0000 From: nobu@ruby-lang.org 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: 38188 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 8543 X-Redmine-Issue-Author: alvoskov X-Redmine-Issue-Assignee: ko1 X-Redmine-Sender: nobu 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS6tS3ujAFh5sg2rCOVnqStft+AuZ+jmBGIvWAzkJH1BpYrweg9MiIp8E2luO20N3FiCuhny5UrrZva/I4FDqo4XCRG9zf01lfw0xKYGvWrkA3czNqmaGdJ407my1L1Ki3Y= X-ML-Name: ruby-core X-Mail-Count: 64034 Subject: [ruby-core:64034] [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 Nobuyoshi Nakada. Tracker changed from Bug to Feature Description updated ---------------------------------------- Feature #8543: rb_iseq_load https://bugs.ruby-lang.org/issues/8543#change-48047 * 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/