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 Path: g2news2.google.com!news3.google.com!feeder1-2.proxad.net!proxad.net!feeder2-2.proxad.net!216.196.110.148.MISMATCH!border1.nntp.ams.giganews.com!nntp.giganews.com!feeder.news-service.com!syros.belnet.be!news.belnet.be!newsserver.news.garr.it!newsserver.cilea.it!not-for-mail From: Colin Paul Gloster Newsgroups: comp.lang.ada Subject: Re: LLVM--Low Level Virtual Machine--and Ada Date: 25 Jul 2007 12:12:13 GMT Organization: CILEA Message-ID: References: <1184730995.862147.208590@g12g2000prg.googlegroups.com> NNTP-Posting-Host: urano.iet.unipi.it X-Trace: newsserver.cilea.it 1185365533 24239 131.114.52.131 (25 Jul 2007 12:12:13 GMT) X-Complaints-To: news@cilea.it NNTP-Posting-Date: 25 Jul 2007 12:12:13 GMT User-Agent: slrn/0.9.8.1 (Linux) Xref: g2news2.google.com comp.lang.ada:1166 Date: 2007-07-25T12:12:13+00:00 List-Id: On 2007-07-24, Markus E Leypold wrote: |---------------------------------------------------------------------------------| |"> 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. | | | | - ..." | |---------------------------------------------------------------------------------| I do not work for RR Software. As in the past, RR Software has a pricelist including listing money in exchange for an implementation's source code ( WWW.RRSoftware.com/html/companyinf/prices.htm ). Randy has been and continues to be very informative even when not charging money for such help. You may wish to look at the rather detailed news:f85jbd$mgj$1@jacob-sparre.dk and the subsequent posts in that subthread, which though detailed are still not as thorough an answer as the source code, which quite rightly costs money. Regards, Colin Paul Gloster