From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,b1f4420d01b2c4eb X-Google-Attributes: gid103376,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Newsgroups: comp.lang.ada Subject: Re: LLVM--Low Level Virtual Machine--and Ada References: <1184730995.862147.208590@g12g2000prg.googlegroups.com> From: Markus E Leypold Organization: N/A Date: Tue, 24 Jul 2007 12:47:16 +0200 Message-ID: User-Agent: Some cool user agent (SCUG) Cancel-Lock: sha1:wPI6v63gnSYKTR42aqA8AM+zMTA= MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii NNTP-Posting-Host: 88.72.211.100 X-Trace: news.arcor-ip.de 1185273377 88.72.211.100 (24 Jul 2007 12:36:17 +0200) X-Complaints-To: abuse@arcor-ip.de Path: g2news2.google.com!news1.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!newsfeed00.sul.t-online.de!t-online.de!storethat.news.telefonica.de!telefonica.de!news-fra1.dfn.de!newsfeed.arcor-ip.de!news.arcor-ip.de!not-for-mail Xref: g2news2.google.com comp.lang.ada:1159 Date: 2007-07-24T12:47:16+02:00 List-Id: > On 2007-07-24, Duncan Sands wrote: > > |-----------------------------------------------------------------------------| > |" Hi Randy, | > | | > |> Janus/Ada has never used any executable data/stack in its 32-bit versions; | > |> such code would save no more than a clock cycle or two (out of hundreds or | > |> thousands) and as such could not be significant. We use compiler-generated | > |> thunks rather than run-time generated trampolines, and I'm not sure why | > |> anyone would use the latter (given that they increase the exploitability of| > |> a program). Most be something I don't understand... | > | | > | how do these thunks work? | > | | > | Thanks, | > | | > | Duncan." | > |-----------------------------------------------------------------------------| > > You should pay RR Software for a source code license to obtain that > information. You speaking for RR software? AFAIR, Randy has been very forward and frank in the past to discuss compiler implementation (many thanks to him: I usually learn something from his posts). How do I have to understand the "should" in this sentence then? - It's a moral obligation. - Randy has changed the rules: Thunks (as opposed to other details) are only being disclosed against money. - ... Regards -- Markus