mirror of
https://github.com/NixOS/nixpkgs.git
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01e460d69e
The [(failing-)build log](https://hydra.nixos.org/build/219379873/nixlog/1) has errors that look like: `undefined symbol: __aarch64_cas8_sync`. This led me to find out about the newly-introduced `-moutline-atomics`, which is **on by default** in GCC 10.1 (according to [this blog post](https://community.arm.com/arm-community-blogs/b/tools-software-ides-blog/posts/making-the-most-of-the-arm-architecture-in-gcc-10)) and in Clang 12.0.0 (according to [the release notes](https://releases.llvm.org/12.0.0/tools/clang/docs/ReleaseNotes.html)) Not all ARMv8-A processors support atomic stuff like `__aarch64_cas8_sync`, it's only those that are ARMv8.1-A or later that do. Examples of pre-ARMv8.1-A processors include the Cortex-A72 used in the Raspberry Pi 4 (which is how I discovered this problem (I am running `hydra` on it, which indirectly depends on `HashSharedMem`)), and any older ARMv8-A processors. The problem here is solvable either by linking the compiler runtime library (which I did not try, since I don't know exactly which one to use) *or* by simply not generating outlines for atomic operations. I went with the "easier" path (which was also what was was happening in older versions of GCC, I think) of disabling atomic outlines with `-mno-outline-atomics`, and it works! |
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| .. | ||
| pkg-config | ||
| agda-packages.nix | ||
| aliases.nix | ||
| all-packages.nix | ||
| beam-packages.nix | ||
| config.nix | ||
| coq-packages.nix | ||
| cubocore-packages.nix | ||
| cuda-packages.nix | ||
| darwin-packages.nix | ||
| default.nix | ||
| dhall-packages.nix | ||
| dotnet-packages.nix | ||
| emacs-packages.nix | ||
| emscripten-packages.nix | ||
| gnuradio-packages.nix | ||
| haskell-packages.nix | ||
| haxe-packages.nix | ||
| impure.nix | ||
| java-packages.nix | ||
| kodi-packages.nix | ||
| linux-kernels.nix | ||
| lua-packages.nix | ||
| make-tarball.nix | ||
| metrics.nix | ||
| nim-packages.nix | ||
| nixpkgs-basic-release-checks.nix | ||
| ocaml-packages.nix | ||
| octave-packages.nix | ||
| packages-config.nix | ||
| perl-packages.nix | ||
| php-packages.nix | ||
| python2-packages.nix | ||
| python-aliases.nix | ||
| python-packages.nix | ||
| qt5-packages.nix | ||
| qt6-packages.nix | ||
| release-alternatives.nix | ||
| release-cross.nix | ||
| release-cuda.nix | ||
| release-haskell.nix | ||
| release-lib.nix | ||
| release-python.nix | ||
| release-r.nix | ||
| release-small.nix | ||
| release.nix | ||
| ruby-packages.nix | ||
| splice.nix | ||
| stage.nix | ||
| unixtools.nix | ||
| wine-packages.nix | ||