Kirk, IIRC Node.js was one such technology. I don’t have a lot of familiarity on the tech but from what I remember it was not possible to “port” the engine because it directly generated x86 instructions (I was told) so it basically compiled the code to x86. IBM had a challenge getting it on z/OS because of this. Given there is now ARM, x86, s390x I presume that the architecture has changed, but like I said, my information was from the sidelines. That is not an easy port.
Matt Hogstrom m...@hogstrom.org How many legs does a dog have if you call the tail a leg? Four. Calling a tail a leg doesn't make it a leg. - Abraham Lincoln > On Apr 25, 2022, at 9:08 AM, Kirk Wolf <k...@dovetail.com> wrote: > > It's pretty good (s390x linux software), but it seems to me that this is not > without some friction: > > - OSS sometimes has compile paths that take advantage of x86 instructions for > optimization, e.g. SSE. Nearly all of the time there is a C path, but that > doesn't mean that the code will perform well in all cases. > > - pre-built repositories/packages/container images for arch=s390x are often > harder to find other than the main distro stuff. Maybe this is getting > better; my experience with it is not totally current. > > - will vendors with proprietary closed source software support arc=s390x > packages (and for zCX, container images)? Many, but certainly not all. > > > On Mon, Apr 25, 2022, at 12:11 AM, David Crayford wrote: >> On 25/4/22 11:37, kekronbekron wrote: >>> What about code that does CPU instruction set specific things. >>> How likely is the success of its compilation on s390x with minimal work. >> >> About 100% likely. Linux is Linux is Linux. IBM have ported all the >> compiler tool-chains such a GCC, LLVM/Clang etc. In the case of LLVM, >> it's used to build other compilers and runtimes such as Rust, Swift, >> Golang etc. You can cross-compile if you don't have access to Linux on Z >> but then you wouldn't have tested it :) >> >> >>> If it's "easy", why is the IBM Z and LinuxOne Open Source list not bigger >>> -https://www.ibm.com/community/z/open-source-software/ >> >> I have no doubt there's a lot more available then what's listed in that >> community. It's awesome that IBM have ported LuaJIT to s390x. It should >> be possible to port that to z/OS and then OpenResty and Kong. >> https://github.com/linux-on-ibm-z/LuaJIT/blob/v2.1/src/vm_s390x.dasc >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN >> > > Kirk Wolf > Dovetailed Technologies > http://dovetail.com > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
