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 E5CB417DCAF7 for ; Tue, 25 Nov 2014 12:19:34 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (funfun.nagaokaut.ac.jp [133.44.2.201]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id 81F33B5D89B for ; Tue, 25 Nov 2014 12:09:55 +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 D4A2597A826 for ; Tue, 25 Nov 2014 12:09:56 +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 J98aOYDKEpJ3 for ; Tue, 25 Nov 2014 12:09:56 +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 6E0A897A820 for ; Tue, 25 Nov 2014 12:09:56 +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 D447395241B for ; Tue, 25 Nov 2014 12:09:54 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id C27EB12050E; Tue, 25 Nov 2014 12:09:50 +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 8A44A12049E for ; Tue, 25 Nov 2014 12:09:44 +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=6dfKdfJe+XVW7tt96e9Kd8huWOY=; b=GDFijiAqEH9/TdMr87 fA93FHg1++5NEFddIG+C83Ghq9+mgONTozfVQpui5vsOQMQpYs5xJL/YHNTHpYHM euYR7U2zn4tLQy/fmWj4QjtojqYnVD6orr8cqMJTDoPhVZvUueCJjVFM+fYbpoT8 akVOZctuR2MHuyD8UD/Q/0Al0= Received: by filter0257p1mdw1.sendgrid.net with SMTP id filter0257p1mdw1.374.5473F2F37 2014-11-25 03:09:39.302523242 +0000 UTC Received: from herokuapp.com (ec2-54-211-136-205.compute-1.amazonaws.com [54.211.136.205]) by ismtpd-021 (SG) with ESMTP id 149e4ed0618.626c.11815 for ; Tue, 25 Nov 2014 03:09:39 +0000 (UTC) Date: Tue, 25 Nov 2014 03:09:38 +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: 40837 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS4smWADDCsV99SHWOrCHn9RELg6SwSYjZ52kI XlfvubBr5FhN8cQdDSSHdvVTMzLkxK+aL1+k40hE91MjmL+FXyVnW1edpjqsI2FIfIV/BgpYaR+wsl Qs40Ne7K1hK5hTUgx5d+QqQsRdr1Ms66o6+K X-SendGrid-Contentd-ID: {"test_id":"1416884980"} X-ML-Name: ruby-core X-Mail-Count: 66452 Subject: [ruby-core:66452] [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. Eric Wong wrote: > Sorry, the inline patch was an extremely hacky work-in-progress, > but I think rb_iseq_load_fix@v1.txt should've been OK with your > (non keyword) use cases. > > Here is a slightly less broken, but still hacky work-in-progress: > http://80x24.org/spew/m/rb_iseq_load_fix@v3.txt > http://80x24.org/spew/m/rb_iseq_load_fix@v3.txt Ah, I see. Thanks! v3 is indeed no longer segfaulting on any of the iseq tests I have. Awesome! Thanks again, Bill ---------------------------------------- Feature #8543: rb_iseq_load https://bugs.ruby-lang.org/issues/8543#change-50075 * 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/