| lkcl | programmerjake, v3.0 only. not backwards-to-v2.06 | 01:23 |
|---|---|---|
| lkcl | awilfox said it's fine to emulate the missing instructions: the linux kernel already has paulus's instruction-emulator module for exactly that purpose | 01:24 |
| lkcl | which leaves the linux kernel itself as the only priority target that, for the e5500, a special package would be needed | 01:24 |
| lkcl | (one that compiles natively for v2.06) | 01:24 |
| lkcl | awilfox, we're not actually permitted to implement v2.06 instructions, under the OpenPower Foundation ISA EULA. | 01:26 |
| lkcl | (nobody is) | 01:26 |
| lkcl | or... you can... but because it's Trademarked you have to remove *all* mention of "Power" from everything associated with it | 01:26 |
| lkcl | including all git commit history. | 01:26 |
| lkcl | and you *definitely* can't add a commit "-POWER +somethingelse" | 01:27 |
| programmerjake | keeping isa v3.0 -- less work for me... | 01:27 |
| sadoon[m] | heheh | 01:28 |
| programmerjake | lkcl, can you create a git repo to stuff our patched rust in? | 01:28 |
| programmerjake | can you name it rust-ppc-sffs.git? | 01:29 |
| lkcl | here's the trap-and-emulate module that paul mackerras wrote. https://github.com/torvalds/linux/blob/master/arch/powerpc/lib/sstep.c | 01:29 |
| lkcl | programmerjake, tomorrow. it's 1:30 am here. | 01:29 |
| programmerjake | k | 01:30 |
| lkcl | do cross-reference this irc discussion in the bugreport as what you're doing is covered by the "ongoing" NLnet grant (helping sadoon with porting) | 01:30 |
| programmerjake | oh, i attached the patch to bug #999 and commented | 01:31 |
| lkcl | brilliant | 01:34 |
| lkcl | really, this is exactly the kind of thing that should be in a script, as a "distro package patch" - like debian | 01:35 |
| lkcl | except you're not f*****g well PERMITTED to f*****g well do that under the f*****g f*****d f*****g Trademark License for Rust!!! | 01:36 |
| lkcl | ah. | 01:36 |
| lkcl | that's a good point | 01:36 |
| programmerjake | they're changing their trademark license | 01:36 |
| lkcl | no, i will not be creating a rust repo | 01:36 |
| lkcl | it constitutes "distribution" and is Unlawful. | 01:36 |
| lkcl | you'll have to get it submitted upstream. | 01:36 |
| programmerjake | once we settle on an official target triple name, i'll submit it upstream as a new target | 01:37 |
| programmerjake | oh, actually our use is explicitly permitted by the trademark policy: | 01:40 |
| programmerjake | Distributing a modified version of the Rust programming language, compiler, or the Cargo package manager, provided that the modifications are limited to: | 01:41 |
| programmerjake | code adjustments for the purpose of porting to a different platform, architecture, or system, or integrating the software with the packaging system of that platform; or | 01:41 |
| programmerjake | under Uses that do not require explicit approval | 01:41 |
| programmerjake | https://foundation.rust-lang.org/policies/logo-policy-and-media-guide/#uses-that-do-not-require-explicit-approval | 01:42 |
| programmerjake | apparently they finished revising their trademark policy, it's now based on the python trademark policy | 01:44 |
| programmerjake | afaict, though i could be wrong | 01:45 |
| lkcl | so it's still a nonfree license. not interested. | 02:39 |
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| sadoon[m] | 87 of about 870 packages failed to rebuild without vsx/altivec | 10:57 |
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| sadoon[m] | This is a bit problematic, from a quick glance it seems that most of these packages assume altivec + vsx on p9 and try to build with it regardless of what we instruct gcc and make.conf | 10:59 |
| sadoon[m] | I think adding a triplet is indeed the best option even at this early stage, I'll look into it | 11:02 |
| sadoon[m] | It will hopefully better communicate with these configure scripts that we do indeed not want altivec and vsx | 11:02 |
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| lkcl | sadoon[m], talk with toshywoshy as he may have done a lot of patches already to "fix" some of those issues | 11:51 |
| lkcl | but yes... the triplet should be powerpc64lesffs-linux-gnu- | 11:52 |
| lkcl | libc6 is going to be the worst offender | 11:53 |
| lkcl | a spanish guy has been submitting patches that finally got accepted upstream, "#ifdef POWER9 --> vsx instructions" he replaced that with "#ifdef VSX" but you have to keep an eye on it | 11:54 |
| lkcl | none of the "#ifdef POWER9 --> vsx" patches should *ever* have been accepted upstream, it's a blatant violation of the development rules for libc6 | 11:55 |
| lkcl | (and common sense) | 11:55 |
| lkcl | but people just didn't have time / pay enough attention, and why would you when there's only IBM POWER hardware for the past 12+ years? | 11:55 |
| lkcl | but, given that toshywoshy had things running with powerel-sffs, you should have "clean sailing" | 11:56 |
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| sadoon[m] | Yeah I hope | 16:49 |
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| sadoon[m] | This is awesome. I was looking for a huge whiteboard I used to use for project planning etc, and when I found it, it had my 2020 plan to build a minimalist gentoo that only includes software known to work across x86, x86_64, ppc, ppc64, and ppc64le | 20:46 |
| sadoon[m] | The irony is yet again I am using it to plan my gentoo build :D | 20:46 |
| sadoon[m] | In fact one of the tasks on the whiteboard was to study OpenPOWER and implement it in SystemVerilog little by little, oh how naive I was | 20:48 |
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