Merge pull request #71899 from decentriq/aslemmer/build-rust-package-add-target
build-support/rust: Add target option
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commit
56240d7f20
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@ -68,6 +68,17 @@ build-time.
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When `verifyCargoDeps` is set to `true`, the build will also verify that the
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`cargoSha256` is not out of date by comparing the `Cargo.lock` file in both the `cargoDeps` and `src`. Note that this option changes the value of `cargoSha256` since it also copies the `Cargo.lock` in it. To avoid breaking backward-compatibility this option is not enabled by default but hopefully will be in the future.
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### Building a crate for a different target
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To build your crate with a different cargo `--target` simply specify the `target` attribute:
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```nix
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pkgs.rustPlatform.buildRustPackage {
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(...)
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target = "x86_64-fortanix-unknown-sgx";
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}
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```
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## Compiling Rust crates using Nix instead of Cargo
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### Simple operation
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@ -18,6 +18,7 @@
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verifyCargoDeps ? false
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, buildType ? "release"
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, meta ? {}
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, target ? null
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, cargoVendorDir ? null
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, ... } @ args:
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@ -50,12 +51,13 @@ let
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rustHostConfig = {
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x86_64-pc-mingw32 = "x86_64-pc-windows-gnu";
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}.${hostConfig} or hostConfig;
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rustTarget = if target == null then rustHostConfig else target;
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ccForBuild="${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}cc";
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cxxForBuild="${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}c++";
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ccForHost="${stdenv.cc}/bin/${stdenv.cc.targetPrefix}cc";
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cxxForHost="${stdenv.cc}/bin/${stdenv.cc.targetPrefix}c++";
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releaseDir = "target/${rustHostConfig}/${buildType}";
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releaseDir = "target/${rustTarget}/${buildType}";
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in
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stdenv.mkDerivation (args // {
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@ -88,7 +90,7 @@ stdenv.mkDerivation (args // {
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[target."${stdenv.buildPlatform.config}"]
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"linker" = "${ccForBuild}"
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${stdenv.lib.optionalString (stdenv.buildPlatform.config != stdenv.hostPlatform.config) ''
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[target."${rustHostConfig}"]
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[target."${rustTarget}"]
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"linker" = "${ccForHost}"
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${# https://github.com/rust-lang/rust/issues/46651#issuecomment-433611633
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stdenv.lib.optionalString (stdenv.hostPlatform.isMusl && stdenv.hostPlatform.isAarch64) ''
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@ -133,7 +135,7 @@ stdenv.mkDerivation (args // {
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"CXX_${stdenv.hostPlatform.config}"="${cxxForHost}" \
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cargo build \
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${stdenv.lib.optionalString (buildType == "release") "--release"} \
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--target ${rustHostConfig} \
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--target ${rustTarget} \
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--frozen ${concatStringsSep " " cargoBuildFlags}
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)
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