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|
{ buildPackages
, callPackage
, cargo
, clang
, lib
, makeSetupHook
, maturin
, rust
, rustc
, stdenv
, target ? rust.toRustTargetSpec stdenv.hostPlatform
}:
let
targetIsJSON = lib.hasSuffix ".json" target;
# see https://github.com/rust-lang/cargo/blob/964a16a28e234a3d397b2a7031d4ab4a428b1391/src/cargo/core/compiler/compile_kind.rs#L151-L168
# the "${}" is needed to transform the path into a /nix/store path before baseNameOf
shortTarget = if targetIsJSON then
(lib.removeSuffix ".json" (builtins.baseNameOf "${target}"))
else target;
ccForBuild = "${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}cc";
cxxForBuild = "${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}c++";
ccForHost = "${stdenv.cc}/bin/${stdenv.cc.targetPrefix}cc";
cxxForHost = "${stdenv.cc}/bin/${stdenv.cc.targetPrefix}c++";
rustBuildPlatform = rust.toRustTarget stdenv.buildPlatform;
rustTargetPlatform = rust.toRustTarget stdenv.hostPlatform;
rustTargetPlatformSpec = rust.toRustTargetSpec stdenv.hostPlatform;
in {
cargoBuildHook = callPackage ({ }:
makeSetupHook {
name = "cargo-build-hook.sh";
deps = [ cargo ];
substitutions = {
inherit ccForBuild ccForHost cxxForBuild cxxForHost
rustBuildPlatform rustTargetPlatform rustTargetPlatformSpec;
};
} ./cargo-build-hook.sh) {};
cargoCheckHook = callPackage ({ }:
makeSetupHook {
name = "cargo-check-hook.sh";
deps = [ cargo ];
substitutions = {
inherit rustTargetPlatformSpec;
};
} ./cargo-check-hook.sh) {};
cargoInstallHook = callPackage ({ }:
makeSetupHook {
name = "cargo-install-hook.sh";
deps = [ ];
substitutions = {
inherit shortTarget;
};
} ./cargo-install-hook.sh) {};
cargoSetupHook = callPackage ({ }:
makeSetupHook {
name = "cargo-setup-hook.sh";
deps = [ ];
substitutions = {
defaultConfig = ../fetchcargo-default-config.toml;
# Specify the stdenv's `diff` by abspath to ensure that the user's build
# inputs do not cause us to find the wrong `diff`.
diff = "${lib.getBin buildPackages.diffutils}/bin/diff";
# We want to specify the correct crt-static flag for both
# the build and host platforms. This is important when the wanted
# value for crt-static does not match the defaults in the rustc target,
# like for pkgsMusl or pkgsCross.musl64; Upstream rustc still assumes
# that musl = static[1].
#
# By default, Cargo doesn't apply RUSTFLAGS when building build.rs
# if --target is passed, so the only good way to set crt-static for
# build.rs files is to use the unstable -Zhost-config Cargo feature.
# This allows us to specify flags that should be passed to rustc
# when building for the build platform. We also need to use
# -Ztarget-applies-to-host, because using -Zhost-config requires it.
#
# When doing this, we also have to specify the linker, or cargo
# won't pass a -C linker= argument to rustc. This will make rustc
# try to use its default value of "cc", which won't be available
# when cross-compiling.
#
# [1]: https://github.com/rust-lang/compiler-team/issues/422
cargoConfig = ''
[host]
"linker" = "${ccForBuild}"
"rustflags" = [ "-C", "target-feature=${if stdenv.buildPlatform.isStatic then "+" else "-"}crt-static" ]
[target."${shortTarget}"]
"linker" = "${ccForHost}"
"rustflags" = [ "-C", "target-feature=${if stdenv.hostPlatform.isStatic then "+" else "-"}crt-static" ]
[unstable]
host-config = true
target-applies-to-host = true
'';
};
} ./cargo-setup-hook.sh) {};
maturinBuildHook = callPackage ({ }:
makeSetupHook {
name = "maturin-build-hook.sh";
deps = [ cargo maturin rustc ];
substitutions = {
inherit ccForBuild ccForHost cxxForBuild cxxForHost
rustBuildPlatform rustTargetPlatform rustTargetPlatformSpec;
};
} ./maturin-build-hook.sh) {};
bindgenHook = callPackage ({}: makeSetupHook {
name = "rust-bindgen-hook";
substitutions = {
libclang = clang.cc.lib;
inherit clang;
};
}
./rust-bindgen-hook.sh) {};
}
|
