nixpkgs/pkgs/stdenv/cross/default.nix
2024-09-06 14:56:54 -04:00

107 lines
3.8 KiB
Nix

{ lib
, localSystem, crossSystem, config, overlays, crossOverlays ? []
}:
let
bootStages = import ../. {
inherit lib localSystem overlays;
crossSystem = localSystem;
crossOverlays = [];
# Ignore custom stdenvs when cross compiling for compatibility
# Use replaceCrossStdenv instead.
config = builtins.removeAttrs config [ "replaceStdenv" ];
};
in lib.init bootStages ++ [
# Regular native packages
(somePrevStage: lib.last bootStages somePrevStage // {
# It's OK to change the built-time dependencies
allowCustomOverrides = true;
})
# Build tool Packages
(vanillaPackages: {
inherit config overlays;
selfBuild = false;
stdenv =
assert vanillaPackages.stdenv.buildPlatform == localSystem;
assert vanillaPackages.stdenv.hostPlatform == localSystem;
assert vanillaPackages.stdenv.targetPlatform == localSystem;
vanillaPackages.stdenv.override { targetPlatform = crossSystem; };
# It's OK to change the built-time dependencies
allowCustomOverrides = true;
})
# Run Packages
(buildPackages: let
adaptStdenv =
if crossSystem.isStatic
then buildPackages.stdenvAdapters.makeStatic
else lib.id;
stdenvNoCC = adaptStdenv (buildPackages.stdenv.override (old: rec {
buildPlatform = localSystem;
hostPlatform = crossSystem;
targetPlatform = crossSystem;
# Prior overrides are surely not valid as packages built with this run on
# a different platform, and so are disabled.
overrides = _: _: {};
extraBuildInputs = [ ]; # Old ones run on wrong platform
allowedRequisites = null;
cc = null;
hasCC = false;
extraNativeBuildInputs = old.extraNativeBuildInputs
++ lib.optionals
(hostPlatform.isLinux && !buildPlatform.isLinux)
[ buildPackages.patchelf ]
++ lib.optional
(let f = p: !p.isx86 || builtins.elem p.libc [ "musl" "wasilibc" "relibc" ] || p.isiOS || p.isGenode;
in f hostPlatform && !(f buildPlatform) )
buildPackages.updateAutotoolsGnuConfigScriptsHook
;
}));
in {
inherit config;
overlays = overlays ++ crossOverlays;
selfBuild = false;
inherit stdenvNoCC;
stdenv = let
inherit (stdenvNoCC) hostPlatform targetPlatform;
baseStdenv = stdenvNoCC.override {
# Old ones run on wrong platform
extraBuildInputs = lib.optionals hostPlatform.isDarwin [
buildPackages.targetPackages.darwin.apple_sdk.frameworks.CoreFoundation
];
hasCC = !stdenvNoCC.targetPlatform.isGhcjs;
cc = if crossSystem.useiOSPrebuilt or false
then buildPackages.darwin.iosSdkPkgs.clang
else if crossSystem.useAndroidPrebuilt or false
then buildPackages."androidndkPkgs_${crossSystem.androidNdkVersion}".clang
else if targetPlatform.isGhcjs
# Need to use `throw` so tryEval for splicing works, ugh. Using
# `null` or skipping the attribute would cause an eval failure
# `tryEval` wouldn't catch, wrecking accessing previous stages
# when there is a C compiler and everything should be fine.
then throw "no C compiler provided for this platform"
else if crossSystem.isDarwin
then buildPackages.llvmPackages.libcxxClang
else if crossSystem.useLLVM or false
then buildPackages.llvmPackages.clang
else if crossSystem.useZig or false
then buildPackages.zig.cc
else if crossSystem.useArocc or false
then buildPackages.arocc
else buildPackages.gcc;
};
in if config ? replaceCrossStdenv then config.replaceCrossStdenv { inherit buildPackages baseStdenv; } else baseStdenv;
})
]