diff options
Diffstat (limited to 'pkgs/build-support/rust/lib/default.nix')
| -rw-r--r-- | pkgs/build-support/rust/lib/default.nix | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/pkgs/build-support/rust/lib/default.nix b/pkgs/build-support/rust/lib/default.nix index 2be0c256787..77397f9b722 100644 --- a/pkgs/build-support/rust/lib/default.nix +++ b/pkgs/build-support/rust/lib/default.nix @@ -15,6 +15,21 @@ rec { 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"; + # 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 @@ -38,4 +53,9 @@ rec { if platform ? rustc.platform then builtins.toFile (toRustTarget platform + ".json") (builtins.toJSON platform.rustc.platform) else toRustTarget 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"]; } |