| 13 Oct 2021 |
 Piper McCorkle (they/them or she/her) | In other news, with this commit you should be able to build a new bootstrap-tools just by building a derivation: https://github.com/NixOS/nixpkgs/pull/141448/commits/422076f81423e6f163669737bb70d7824653ea5d | 06:05:56 |
 sterni | In reply to @piper:lutris.engineering
True, we could do that! Though that means we need to get a NixOS system working before being able to add that platform. to start out it could be any linux distribution running a nix-daemon | 08:33:52 |
 Alyssa Ross | although then trust is expanded to that distro | 08:35:53 |
| sterni | if there just was binfmt_misc for macOS huh :p | 09:28:50 |
| Alyssa Ross | ain't that what Darling is trying to do? | 09:31:24 |
| sterni | I just wanted to make a joke about darwin being trusted technically :) | 09:33:36 |
| sterni | I wouldn't like trusting macOS for building NixOS/Linux stuff though; it's fine for building darwin ofc | 09:33:58 |
| 14 Oct 2021 |
| Piper McCorkle (they/them or she/her) | I'm getting some really strange test failures on coreutils for ppc64le https://termbin.com/s4vc
Example:
FAIL: tests/du/no-x
===================
--- exp 2021-10-14 16:02:44.259294987 +0000
+++ out 2021-10-14 16:02:44.206294528 +0000
@@ -1 +1 @@
-du: 'd/no-x': Permission denied
+/build/coreutils-8.32/./src/du: cannot access 'd/no-x': Permission denied
FAIL tests/du/no-x.sh (exit status: 1)
Anyone seen anything like this before?
| 17:06:48 |
| Piper McCorkle (they/them or she/her) | This is part of the multi-stage bootstrap tools build, and I'm sadly not sure which stage it's part of - is it possible to show the dependency tree of a derivation? | 17:07:59 |
| Piper McCorkle (they/them or she/her) | Never mind, found nix-tree | 17:10:30 |
| Piper McCorkle (they/them or she/her) | Ha, turns out I screwed up and it wasn't actually doing a multi-stage build (wasn't propagating an attr), guess I'm glad it didn't succeed and leave me with a cross bootstrap tools | 17:30:05 |
| 17 Oct 2021 |
|  Yuka (she/her) joined the room. | 13:28:51 |
|  mars joined the room. | 19:02:47 |
| 21 Oct 2021 |
| Alyssa Ross | Just in case anybody missed it, we can build systemd with musl now thanks to yuka! https://nixpk.gs/pr-tracker.html?pr=141980 | 08:29:22 |
| 23 Oct 2021 |
| sterni | Ryan Burns: ghc disables pie hardening for musl can this be dropped now? | 10:05:04 |
 Ryan Burns | sterni: Not sure - weren't people running into segfaults or smth before it was disabled? | 17:37:16 |
| Ryan Burns | my pie hardening fixes only addressed build-time failures so if anything was funky at runtime it might still need to be disabled | 17:37:49 |
| sterni | I'm not sure, maybe worth to try to blame the file | 18:44:51 |
| Alyssa Ross | i often check out the commit before the hardeningDisable was added and try building — if it failed then but now succeeds without, it's probably safe to remove. If it did build before, it was probably added to fix a runtime issue and should be retained pending further investigation. | 18:51:12 |
| Alyssa Ross | another thing you can do is check hardened gentoo (who've had pie for ages) or pkgsrc (who have just enabled it, so have fresh info on what packages need it) | 18:51:48 |
|  hexa joined the room. | 23:42:19 |
| 26 Oct 2021 |
|  @grahamc:nixos.orgchanged room power levels. | 01:15:52 |
|  NixOS Moderation Bot changed their display name from mjolnir to NixOS Moderation Bot. | 02:00:00 |
| NixOS Moderation Bot set a profile picture. | 02:00:20 |
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| 27 Oct 2021 |
|  alyaeanyx joined the room. | 21:42:32 |
| 6 Nov 2021 |
|  Tseb (Old) joined the room. | 09:18:51 |
| 10 May 2022 |
| Piper McCorkle (they/them or she/her) changed their display name from Piper McCorkle (she/her or they/them) to Piper McCorkle (they/them or she/her). | 05:25:49 |
| 8 Nov 2021 |
 trofi | ghc being a code generator used to generate non-pie code, then it was taught to generate -fPIC on explicit option and use -fno-pie at link time otherwise by "fixing" linker errors people see on pie-by-default toolchains. Mismatches should lead to link time failures on x86_64.
For some targets (x86_64-darwin) ghc just hardcodes -fPIC: https://github.com/ghc/ghc/blob/master/compiler/GHC/Driver/Session.hs#L3695
Chances are you don't need to explicitly disable "pie" (-fPIC) for ghc nowadays. The ideal fix would probably be to deault-enable -fPIC on ghc itself (similar to how nixpkgs enables it for gcc).
| 22:04:41 |
