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authorAlyssa Ross <hi@alyssa.is>2023-11-19 16:49:21 +0100
committerAlyssa Ross <hi@alyssa.is>2023-11-19 16:51:12 +0100
commitb9c0b3f126472b144c543d8d77a8047e8d905ada (patch)
tree2ad99b8789bcb62b993ed18d2877905f7f02bdac /nixpkgs/pkgs/build-support/rust/lib/default.nix
parent67419f0e56f99b0ebbe14574d3492110ac84c8d6 (diff)
parentc757e9bd77b16ca2e03c89bf8bc9ecb28e0c06ad (diff)
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Merge branch 'nixos-unstable' of https://github.com/NixOS/nixpkgs into HEAD
Conflicts:
	nixpkgs/pkgs/build-support/rust/build-rust-package/default.nix
	nixpkgs/pkgs/top-level/perl-packages.nix
Diffstat (limited to 'nixpkgs/pkgs/build-support/rust/lib/default.nix')
-rw-r--r--nixpkgs/pkgs/build-support/rust/lib/default.nix127
1 files changed, 29 insertions, 98 deletions
diff --git a/nixpkgs/pkgs/build-support/rust/lib/default.nix b/nixpkgs/pkgs/build-support/rust/lib/default.nix
index ceca7323176c..dad8ab528235 100644
--- a/nixpkgs/pkgs/build-support/rust/lib/default.nix
+++ b/nixpkgs/pkgs/build-support/rust/lib/default.nix
@@ -5,89 +5,6 @@
 }:
 
 rec {
-  # https://doc.rust-lang.org/reference/conditional-compilation.html#target_arch
-  toTargetArch = platform:
-    /**/ if platform ? rustc.platform then platform.rustc.platform.arch
-    else if platform.isAarch32 then "arm"
-    else if platform.isMips64  then "mips64"     # never add "el" suffix
-    else if platform.isPower64 then "powerpc64"  # never add "le" suffix
-    else platform.parsed.cpu.name;
-
-  # https://doc.rust-lang.org/reference/conditional-compilation.html#target_os
-  toTargetOs = platform:
-    /**/ if platform ? rustc.platform then platform.rustc.platform.os or "none"
-    else if platform.isDarwin then "macos"
-    else platform.parsed.kernel.name;
-
-  # https://doc.rust-lang.org/reference/conditional-compilation.html#target_family
-  toTargetFamily = platform:
-    if platform ? rustc.platform.target-family
-    then
-      (
-        # Since https://github.com/rust-lang/rust/pull/84072
-        # `target-family` is a list instead of single value.
-        let
-          f = platform.rustc.platform.target-family;
-        in
-        if builtins.isList f then f else [ f ]
-      )
-    else lib.optional platform.isUnix "unix"
-      ++ lib.optional platform.isWindows "windows";
-
-  # https://doc.rust-lang.org/reference/conditional-compilation.html#target_vendor
-  toTargetVendor = platform: let
-    inherit (platform.parsed) vendor;
-  in platform.rustc.platform.vendor or {
-    "w64" = "pc";
-  }.${vendor.name} or vendor.name;
-
-  # Returns the name of the rust target, even if it is custom. Adjustments are
-  # because rust has slightly different naming conventions than we do.
-  toRustTarget = platform: let
-    inherit (platform.parsed) cpu kernel abi;
-    cpu_ = platform.rustc.platform.arch or {
-      "armv7a" = "armv7";
-      "armv7l" = "armv7";
-      "armv6l" = "arm";
-      "armv5tel" = "armv5te";
-      "riscv64" = "riscv64gc";
-    }.${cpu.name} or cpu.name;
-    vendor_ = toTargetVendor platform;
-  in platform.rustc.config
-    or "${cpu_}-${vendor_}-${kernel.name}${lib.optionalString (abi.name != "unknown") "-${abi.name}"}";
-
-  # Returns the name of the rust target if it is standard, or the json file
-  # containing the custom target spec.
-  toRustTargetSpec = platform:
-    if platform ? rustc.platform
-    then builtins.toFile (toRustTarget platform + ".json") (builtins.toJSON platform.rustc.platform)
-    else toRustTarget platform;
-
-  # Returns the name of the rust target if it is standard, or the
-  # basename of the file containing the custom target spec, without
-  # the .json extension.
-  #
-  # This is the name used by Cargo for target subdirectories.
-  toRustTargetSpecShort = platform:
-    lib.removeSuffix ".json"
-      (baseNameOf "${toRustTargetSpec platform}");
-
-  # When used as part of an environment variable name, triples are
-  # uppercased and have all hyphens replaced by underscores:
-  #
-  # https://github.com/rust-lang/cargo/pull/9169
-  # https://github.com/rust-lang/cargo/issues/8285#issuecomment-634202431
-  #
-  toRustTargetForUseInEnvVars = platform:
-    lib.strings.replaceStrings ["-"] ["_"]
-      (lib.strings.toUpper
-        (toRustTargetSpecShort platform));
-
-  # Returns true if the target is no_std
-  # https://github.com/rust-lang/rust/blob/2e44c17c12cec45b6a682b1e53a04ac5b5fcc9d2/src/bootstrap/config.rs#L415-L421
-  IsNoStdTarget = platform: let rustTarget = toRustTarget platform; in
-    builtins.any (t: lib.hasInfix t rustTarget) ["-none" "nvptx" "switch" "-uefi"];
-
   # These environment variables must be set when using `cargo-c` and
   # several other tools which do not deal well with cross
   # compilation.  The symptom of the problem they fix is errors due
@@ -107,12 +24,12 @@ rec {
     ccForTarget = "${targetPackages.stdenv.cc}/bin/${targetPackages.stdenv.cc.targetPrefix}cc";
     cxxForTarget = "${targetPackages.stdenv.cc}/bin/${targetPackages.stdenv.cc.targetPrefix}c++";
 
-    rustBuildPlatform = toRustTarget stdenv.buildPlatform;
-    rustBuildPlatformSpec = toRustTargetSpec stdenv.buildPlatform;
-    rustHostPlatform = toRustTarget stdenv.hostPlatform;
-    rustHostPlatformSpec = toRustTargetSpec stdenv.hostPlatform;
-    rustTargetPlatform = toRustTarget stdenv.targetPlatform;
-    rustTargetPlatformSpec = toRustTargetSpec stdenv.targetPlatform;
+    rustBuildPlatform = stdenv.buildPlatform.rust.rustcTarget;
+    rustBuildPlatformSpec = stdenv.buildPlatform.rust.rustcTargetSpec;
+    rustHostPlatform = stdenv.hostPlatform.rust.rustcTarget;
+    rustHostPlatformSpec = stdenv.hostPlatform.rust.rustcTargetSpec;
+    rustTargetPlatform = stdenv.targetPlatform.rust.rustcTarget;
+    rustTargetPlatformSpec = stdenv.targetPlatform.rust.rustcTargetSpec;
   in {
     inherit
       ccForBuild  cxxForBuild  rustBuildPlatform   rustBuildPlatformSpec
@@ -131,20 +48,34 @@ rec {
     # the following lines when rustTargetPlatform collides with
     # rustHostPlatform.
     + lib.optionalString (rustTargetPlatform != rustHostPlatform) ''
-      "CC_${toRustTargetForUseInEnvVars stdenv.targetPlatform}=${ccForTarget}" \
-      "CXX_${toRustTargetForUseInEnvVars stdenv.targetPlatform}=${cxxForTarget}" \
-      "CARGO_TARGET_${toRustTargetForUseInEnvVars stdenv.targetPlatform}_LINKER=${ccForTarget}" \
+      "CC_${stdenv.targetPlatform.rust.cargoEnvVarTarget}=${ccForTarget}" \
+      "CXX_${stdenv.targetPlatform.rust.cargoEnvVarTarget}=${cxxForTarget}" \
+      "CARGO_TARGET_${stdenv.targetPlatform.rust.cargoEnvVarTarget}_LINKER=${ccForTarget}" \
     '' + ''
-      "CC_${toRustTargetForUseInEnvVars stdenv.hostPlatform}=${ccForHost}" \
-      "CXX_${toRustTargetForUseInEnvVars stdenv.hostPlatform}=${cxxForHost}" \
-      "CARGO_TARGET_${toRustTargetForUseInEnvVars stdenv.hostPlatform}_LINKER=${ccForHost}" \
+      "CC_${stdenv.hostPlatform.rust.cargoEnvVarTarget}=${ccForHost}" \
+      "CXX_${stdenv.hostPlatform.rust.cargoEnvVarTarget}=${cxxForHost}" \
+      "CARGO_TARGET_${stdenv.hostPlatform.rust.cargoEnvVarTarget}_LINKER=${ccForHost}" \
     '' + ''
-      "CC_${toRustTargetForUseInEnvVars stdenv.buildPlatform}=${ccForBuild}" \
-      "CXX_${toRustTargetForUseInEnvVars stdenv.buildPlatform}=${cxxForBuild}" \
-      "CARGO_TARGET_${toRustTargetForUseInEnvVars stdenv.buildPlatform}_LINKER=${ccForBuild}" \
+      "CC_${stdenv.buildPlatform.rust.cargoEnvVarTarget}=${ccForBuild}" \
+      "CXX_${stdenv.buildPlatform.rust.cargoEnvVarTarget}=${cxxForBuild}" \
+      "CARGO_TARGET_${stdenv.buildPlatform.rust.cargoEnvVarTarget}_LINKER=${ccForBuild}" \
       "CARGO_BUILD_TARGET=${rustBuildPlatform}" \
       "HOST_CC=${buildPackages.stdenv.cc}/bin/cc" \
       "HOST_CXX=${buildPackages.stdenv.cc}/bin/c++" \
     '';
   };
+} // lib.mapAttrs (old: new: platform:
+  # TODO: enable warning after 23.05 is EOL.
+  # lib.warn "`rust.${old} platform` is deprecated. Use `platform.rust.${new}` instead."
+    lib.getAttrFromPath new platform.rust)
+{
+  toTargetArch = [ "platform" "arch" ];
+  toTargetOs = [ "platform" "os" ];
+  toTargetFamily = [ "platform" "target-family" ];
+  toTargetVendor = [ "platform" "vendor" ];
+  toRustTarget = [ "rustcTarget" ];
+  toRustTargetSpec = [ "rustcTargetSpec" ];
+  toRustTargetSpecShort = [ "cargoShortTarget" ];
+  toRustTargetForUseInEnvVars = [ "cargoEnvVarTarget" ];
+  IsNoStdTarget = [ "isNoStdTarget" ];
 }