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18ed048c7b
- `toRustTarget` and friends pulled out from rust tools into rust library. Since they don't depend on any packages they can be more widely useable. - `build-rust-package` gets its own directory - `fetch-cargo-tarball` gets its own directory
38 lines
1.4 KiB
Nix
38 lines
1.4 KiB
Nix
{ lib }:
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rec {
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# https://doc.rust-lang.org/reference/conditional-compilation.html#target_arch
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toTargetArch = platform:
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if platform.isAarch32 then "arm"
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else platform.parsed.cpu.name;
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# https://doc.rust-lang.org/reference/conditional-compilation.html#target_os
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toTargetOs = platform:
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if platform.isDarwin then "macos"
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else platform.parsed.kernel.name;
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# Returns the name of the rust target, even if it is custom. Adjustments are
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# because rust has slightly different naming conventions than we do.
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toRustTarget = platform: let
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inherit (platform.parsed) cpu vendor kernel abi;
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cpu_ = platform.rustc.platform.arch or {
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"armv7a" = "armv7";
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"armv7l" = "armv7";
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"armv6l" = "arm";
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"armv5tel" = "armv5te";
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"riscv64" = "riscv64gc";
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}.${cpu.name} or cpu.name;
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vendor_ = platform.rustc.platform.vendor or {
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"w64" = "pc";
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}.${vendor.name} or vendor.name;
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in platform.rustc.config
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or "${cpu_}-${vendor_}-${kernel.name}${lib.optionalString (abi.name != "unknown") "-${abi.name}"}";
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# Returns the name of the rust target if it is standard, or the json file
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# containing the custom target spec.
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toRustTargetSpec = platform:
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if (platform.rustc or {}) ? platform
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then builtins.toFile (toRustTarget platform + ".json") (builtins.toJSON platform.rustc.platform)
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else toRustTarget platform;
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}
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