nixpkgs/pkgs/development/compilers/rust/default.nix
John Ericson 19a0b38cbe
Merge pull request #82882 from obsidiansystems/armv6-embedded
Misc fixes for armv6 bare metal cross
2020-03-19 10:38:22 -04:00

99 lines
3.7 KiB
Nix

{ rustcVersion
, rustcSha256
, enableRustcDev ? true
, bootstrapVersion
, bootstrapHashes
, selectRustPackage
, rustcPatches ? []
}:
{ stdenv, lib
, buildPackages
, newScope, callPackage
, CoreFoundation, Security
, llvmPackages_5
, pkgsBuildTarget, pkgsBuildBuild
}: rec {
toRustTarget = platform: with platform.parsed; let
cpu_ = {
"armv7a" = "armv7";
"armv7l" = "armv7";
"armv6l" = "arm";
}.${cpu.name} or platform.rustc.arch or cpu.name;
in platform.rustc.config
or "${cpu_}-${vendor.name}-${kernel.name}${lib.optionalString (abi.name != "unknown") "-${abi.name}"}";
makeRustPlatform = { rustc, cargo, ... }: rec {
rust = {
inherit rustc cargo;
};
fetchCargoTarball = buildPackages.callPackage ../../../build-support/rust/fetchCargoTarball.nix {
inherit cargo;
};
buildRustPackage = callPackage ../../../build-support/rust {
inherit rustc cargo fetchCargoTarball;
};
rustcSrc = callPackage ./rust-src.nix {
inherit rustc;
};
};
# This just contains tools for now. But it would conceivably contain
# libraries too, say if we picked some default/recommended versions from
# `cratesIO` to build by Hydra and/or try to prefer/bias in Cargo.lock for
# all vendored Carnix-generated nix.
#
# In the end game, rustc, the rust standard library (`core`, `std`, etc.),
# and cargo would themselves be built with `buildRustCreate` like
# everything else. Tools and `build.rs` and procedural macro dependencies
# would be taken from `buildRustPackages` (and `bootstrapRustPackages` for
# anything provided prebuilt or their build-time dependencies to break
# cycles / purify builds). In this way, nixpkgs would be in control of all
# bootstrapping.
packages = {
prebuilt = callPackage ./bootstrap.nix {
version = bootstrapVersion;
hashes = bootstrapHashes;
};
stable = lib.makeScope newScope (self: let
# Like `buildRustPackages`, but may also contain prebuilt binaries to
# break cycle. Just like `bootstrapTools` for nixpkgs as a whole,
# nothing in the final package set should refer to this.
bootstrapRustPackages = self.buildRustPackages.overrideScope' (_: _:
lib.optionalAttrs (stdenv.buildPlatform == stdenv.hostPlatform)
(selectRustPackage buildPackages).packages.prebuilt);
bootRustPlatform = makeRustPlatform bootstrapRustPackages;
in {
# Packages suitable for build-time, e.g. `build.rs`-type stuff.
buildRustPackages = (selectRustPackage buildPackages).packages.stable;
# Analogous to stdenv
rustPlatform = makeRustPlatform self.buildRustPackages;
rustc = self.callPackage ./rustc.nix ({
version = rustcVersion;
sha256 = rustcSha256;
inherit enableRustcDev;
patches = rustcPatches;
# Use boot package set to break cycle
rustPlatform = bootRustPlatform;
} // lib.optionalAttrs (stdenv.cc.isClang && stdenv.hostPlatform == stdenv.buildPlatform) {
stdenv = llvmPackages_5.stdenv;
pkgsBuildBuild = pkgsBuildBuild // { targetPackages.stdenv = llvmPackages_5.stdenv; };
pkgsBuildHost = pkgsBuildBuild // { targetPackages.stdenv = llvmPackages_5.stdenv; };
pkgsBuildTarget = pkgsBuildTarget // { targetPackages.stdenv = llvmPackages_5.stdenv; };
});
rustfmt = self.callPackage ./rustfmt.nix { inherit Security; };
cargo = self.callPackage ./cargo.nix {
# Use boot package set to break cycle
rustPlatform = bootRustPlatform;
inherit CoreFoundation Security;
};
clippy = self.callPackage ./clippy.nix { inherit Security; };
rls = self.callPackage ./rls { inherit CoreFoundation Security; };
});
};
}