Rollup merge of #139868 - thaliaarchi:move-env-consts-pal, r=joboet

Move `pal::env` to `std::sys::env_consts`

Combine the `std::env::consts` platform implementations as a single file. Use the Unix file as the base, since it has 28 entries, and fold the 8 singleton platforms into it. The Unix file was roughly grouped into Linux, Apple, BSD, and everything else, roughly in alphabetical order. Alphabetically order them to make it easier to maintain and discard the Unix-specific groups to generalize it to all platforms.

I'd prefer to have no fallback implementation, as I consider it a bug; however TEEOS, Trusty, and Xous have no definitions here. Since they otherwise have `pal` abstractions, that indicates that there are several platforms without `pal` abstractions which are also missing here. To support unsupported, create a little macro to handle the fallback case and not introduce ordering between the `cfg`s like `cfg_if!`.

I've named the module `std::sys::env_consts`, because they are used in `std::env::consts` and I intend to use the name `std::sys::env` for the combination of `Args` and `Vars`.

cc `@joboet` `@ChrisDenton`

Tracked in #117276.

compiler/rustc_target/src/spec/base/linux_musl.rs

@@ -1,12 +1,11 @@
 use crate::spec::{LinkSelfContainedDefault, TargetOptions, base, crt_objects};
 
 pub(crate) fn opts() -> TargetOptions {
-    let mut base = base::linux::opts();
-
-    base.env = "musl".into();
-    base.pre_link_objects_self_contained = crt_objects::pre_musl_self_contained();
-    base.post_link_objects_self_contained = crt_objects::post_musl_self_contained();
-    base.link_self_contained = LinkSelfContainedDefault::InferredForMusl;
-
-    base
+    TargetOptions {
+        env: "musl".into(),
+        pre_link_objects_self_contained: crt_objects::pre_musl_self_contained(),
+        post_link_objects_self_contained: crt_objects::post_musl_self_contained(),
+        link_self_contained: LinkSelfContainedDefault::InferredForMusl,
+        ..base::linux::opts()
+    }
 }

compiler/rustc_target/src/spec/base/linux_ohos.rs

@@ -1,12 +1,11 @@
 use crate::spec::{TargetOptions, TlsModel, base};
 
 pub(crate) fn opts() -> TargetOptions {
-    let mut base = base::linux::opts();
-
-    base.env = "ohos".into();
-    base.crt_static_default = false;
-    base.tls_model = TlsModel::Emulated;
-    base.has_thread_local = false;
-
-    base
+    TargetOptions {
+        env: "ohos".into(),
+        crt_static_default: false,
+        tls_model: TlsModel::Emulated,
+        has_thread_local: false,
+        ..base::linux::opts()
+    }
 }

library/std/src/env.rs

@@ -950,7 +950,7 @@ impl fmt::Debug for ArgsOs {
 /// Constants associated with the current target
 #[stable(feature = "env", since = "1.0.0")]
 pub mod consts {
-    use crate::sys::env::os;
+    use crate::sys::env_consts::os;
 
     /// A string describing the architecture of the CPU that is currently in use.
     /// An example value may be: `"x86"`, `"arm"` or `"riscv64"`.

library/std/src/sys/env_consts.rs

@@ -1,106 +1,35 @@
-#[cfg(target_os = "linux")]
+//! Constants associated with each target.
+
+// Replaces the #[else] gate with #[cfg(not(any(…)))] of all the other gates.
+// This ensures that they must be mutually exclusive and do not have precedence
+// like cfg_if!.
+macro cfg_unordered(
+    $(#[cfg($cfg:meta)] $os:item)*
+    #[else] $fallback:item
+) {
+    $(#[cfg($cfg)] $os)*
+    #[cfg(not(any($($cfg),*)))] $fallback
+}
+
+// Keep entries sorted alphabetically and mutually exclusive.
+
+cfg_unordered! {
+
+#[cfg(target_os = "aix")]
 pub mod os {
     pub const FAMILY: &str = "unix";
-    pub const OS: &str = "linux";
+    pub const OS: &str = "aix";
     pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".so";
-    pub const DLL_EXTENSION: &str = "so";
+    pub const DLL_SUFFIX: &str = ".a";
+    pub const DLL_EXTENSION: &str = "a";
     pub const EXE_SUFFIX: &str = "";
     pub const EXE_EXTENSION: &str = "";
 }
 
-#[cfg(target_os = "macos")]
+#[cfg(target_os = "android")]
 pub mod os {
     pub const FAMILY: &str = "unix";
-    pub const OS: &str = "macos";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".dylib";
-    pub const DLL_EXTENSION: &str = "dylib";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}
-
-#[cfg(target_os = "ios")]
-pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "ios";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".dylib";
-    pub const DLL_EXTENSION: &str = "dylib";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}
-
-#[cfg(target_os = "tvos")]
-pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "tvos";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".dylib";
-    pub const DLL_EXTENSION: &str = "dylib";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}
-
-#[cfg(target_os = "watchos")]
-pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "watchos";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".dylib";
-    pub const DLL_EXTENSION: &str = "dylib";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}
-
-#[cfg(target_os = "visionos")]
-pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "visionos";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".dylib";
-    pub const DLL_EXTENSION: &str = "dylib";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}
-
-#[cfg(target_os = "freebsd")]
-pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "freebsd";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".so";
-    pub const DLL_EXTENSION: &str = "so";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}
-
-#[cfg(target_os = "dragonfly")]
-pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "dragonfly";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".so";
-    pub const DLL_EXTENSION: &str = "so";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}
-
-#[cfg(target_os = "netbsd")]
-pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "netbsd";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".so";
-    pub const DLL_EXTENSION: &str = "so";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}
-
-#[cfg(target_os = "openbsd")]
-pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "openbsd";
+    pub const OS: &str = "android";
     pub const DLL_PREFIX: &str = "lib";
     pub const DLL_SUFFIX: &str = ".so";
     pub const DLL_EXTENSION: &str = "so";
@@ -119,10 +48,10 @@ pub mod os {
     pub const EXE_EXTENSION: &str = "exe";
 }
 
-#[cfg(target_os = "android")]
+#[cfg(target_os = "dragonfly")]
 pub mod os {
     pub const FAMILY: &str = "unix";
-    pub const OS: &str = "android";
+    pub const OS: &str = "dragonfly";
     pub const DLL_PREFIX: &str = "lib";
     pub const DLL_SUFFIX: &str = ".so";
     pub const DLL_EXTENSION: &str = "so";
@@ -130,10 +59,21 @@ pub mod os {
     pub const EXE_EXTENSION: &str = "";
 }
 
-#[cfg(target_os = "solaris")]
+#[cfg(target_os = "emscripten")]
 pub mod os {
     pub const FAMILY: &str = "unix";
-    pub const OS: &str = "solaris";
+    pub const OS: &str = "emscripten";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".so";
+    pub const DLL_EXTENSION: &str = "so";
+    pub const EXE_SUFFIX: &str = ".js";
+    pub const EXE_EXTENSION: &str = "js";
+}
+
+#[cfg(target_os = "espidf")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "espidf";
     pub const DLL_PREFIX: &str = "lib";
     pub const DLL_SUFFIX: &str = ".so";
     pub const DLL_EXTENSION: &str = "so";
@@ -141,10 +81,21 @@ pub mod os {
     pub const EXE_EXTENSION: &str = "";
 }
 
-#[cfg(target_os = "illumos")]
+#[cfg(target_os = "freebsd")]
 pub mod os {
     pub const FAMILY: &str = "unix";
-    pub const OS: &str = "illumos";
+    pub const OS: &str = "freebsd";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".so";
+    pub const DLL_EXTENSION: &str = "so";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
+#[cfg(target_os = "fuchsia")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "fuchsia";
     pub const DLL_PREFIX: &str = "lib";
     pub const DLL_SUFFIX: &str = ".so";
     pub const DLL_EXTENSION: &str = "so";
@@ -163,6 +114,17 @@ pub mod os {
     pub const EXE_EXTENSION: &str = "";
 }
 
+#[cfg(target_os = "hermit")]
+pub mod os {
+    pub const FAMILY: &str = "";
+    pub const OS: &str = "hermit";
+    pub const DLL_PREFIX: &str = "";
+    pub const DLL_SUFFIX: &str = "";
+    pub const DLL_EXTENSION: &str = "";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
 #[cfg(target_os = "horizon")]
 pub mod os {
     pub const FAMILY: &str = "unix";
@@ -185,35 +147,24 @@ pub mod os {
     pub const EXE_EXTENSION: &str = "";
 }
 
-#[cfg(target_os = "vita")]
+#[cfg(target_os = "illumos")]
 pub mod os {
     pub const FAMILY: &str = "unix";
-    pub const OS: &str = "vita";
+    pub const OS: &str = "illumos";
     pub const DLL_PREFIX: &str = "lib";
     pub const DLL_SUFFIX: &str = ".so";
     pub const DLL_EXTENSION: &str = "so";
-    pub const EXE_SUFFIX: &str = ".elf";
-    pub const EXE_EXTENSION: &str = "elf";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
 }
 
-#[cfg(all(target_os = "emscripten", target_arch = "wasm32"))]
+#[cfg(target_os = "ios")]
 pub mod os {
     pub const FAMILY: &str = "unix";
-    pub const OS: &str = "emscripten";
+    pub const OS: &str = "ios";
     pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".so";
-    pub const DLL_EXTENSION: &str = "so";
-    pub const EXE_SUFFIX: &str = ".js";
-    pub const EXE_EXTENSION: &str = "js";
-}
-
-#[cfg(target_os = "fuchsia")]
-pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "fuchsia";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".so";
-    pub const DLL_EXTENSION: &str = "so";
+    pub const DLL_SUFFIX: &str = ".dylib";
+    pub const DLL_EXTENSION: &str = "dylib";
     pub const EXE_SUFFIX: &str = "";
     pub const EXE_EXTENSION: &str = "";
 }
@@ -229,6 +180,39 @@ pub mod os {
     pub const EXE_EXTENSION: &str = "";
 }
 
+#[cfg(target_os = "linux")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "linux";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".so";
+    pub const DLL_EXTENSION: &str = "so";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
+#[cfg(target_os = "macos")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "macos";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".dylib";
+    pub const DLL_EXTENSION: &str = "dylib";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
+#[cfg(target_os = "netbsd")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "netbsd";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".so";
+    pub const DLL_EXTENSION: &str = "so";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
 #[cfg(target_os = "nto")]
 pub mod os {
     pub const FAMILY: &str = "unix";
@@ -240,6 +224,28 @@ pub mod os {
     pub const EXE_EXTENSION: &str = "";
 }
 
+#[cfg(target_os = "nuttx")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "nuttx";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".so";
+    pub const DLL_EXTENSION: &str = "so";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
+#[cfg(target_os = "openbsd")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "openbsd";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".so";
+    pub const DLL_EXTENSION: &str = "so";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
 #[cfg(target_os = "redox")]
 pub mod os {
     pub const FAMILY: &str = "unix";
@@ -262,6 +268,83 @@ pub mod os {
     pub const EXE_EXTENSION: &str = "";
 }
 
+#[cfg(all(target_vendor = "fortanix", target_env = "sgx"))]
+pub mod os {
+    pub const FAMILY: &str = "";
+    pub const OS: &str = "";
+    pub const DLL_PREFIX: &str = "";
+    pub const DLL_SUFFIX: &str = ".sgxs";
+    pub const DLL_EXTENSION: &str = "sgxs";
+    pub const EXE_SUFFIX: &str = ".sgxs";
+    pub const EXE_EXTENSION: &str = "sgxs";
+}
+
+#[cfg(target_os = "solaris")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "solaris";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".so";
+    pub const DLL_EXTENSION: &str = "so";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
+#[cfg(target_os = "solid_asp3")]
+pub mod os {
+    pub const FAMILY: &str = "itron";
+    pub const OS: &str = "solid";
+    pub const DLL_PREFIX: &str = "";
+    pub const DLL_SUFFIX: &str = ".so";
+    pub const DLL_EXTENSION: &str = "so";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
+#[cfg(target_os = "tvos")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "tvos";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".dylib";
+    pub const DLL_EXTENSION: &str = "dylib";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
+#[cfg(target_os = "uefi")]
+pub mod os {
+    pub const FAMILY: &str = "";
+    pub const OS: &str = "uefi";
+    pub const DLL_PREFIX: &str = "";
+    pub const DLL_SUFFIX: &str = "";
+    pub const DLL_EXTENSION: &str = "";
+    pub const EXE_SUFFIX: &str = ".efi";
+    pub const EXE_EXTENSION: &str = "efi";
+}
+
+#[cfg(target_os = "visionos")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "visionos";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".dylib";
+    pub const DLL_EXTENSION: &str = "dylib";
+    pub const EXE_SUFFIX: &str = "";
+    pub const EXE_EXTENSION: &str = "";
+}
+
+#[cfg(target_os = "vita")]
+pub mod os {
+    pub const FAMILY: &str = "unix";
+    pub const OS: &str = "vita";
+    pub const DLL_PREFIX: &str = "lib";
+    pub const DLL_SUFFIX: &str = ".so";
+    pub const DLL_EXTENSION: &str = "so";
+    pub const EXE_SUFFIX: &str = ".elf";
+    pub const EXE_EXTENSION: &str = "elf";
+}
+
 #[cfg(target_os = "vxworks")]
 pub mod os {
     pub const FAMILY: &str = "unix";
@@ -273,35 +356,49 @@ pub mod os {
     pub const EXE_EXTENSION: &str = "";
 }
 
-#[cfg(target_os = "espidf")]
+#[cfg(all(target_family = "wasm", not(any(target_os = "emscripten", target_os = "linux"))))]
+pub mod os {
+    pub const FAMILY: &str = "";
+    pub const OS: &str = "";
+    pub const DLL_PREFIX: &str = "";
+    pub const DLL_SUFFIX: &str = ".wasm";
+    pub const DLL_EXTENSION: &str = "wasm";
+    pub const EXE_SUFFIX: &str = ".wasm";
+    pub const EXE_EXTENSION: &str = "wasm";
+}
+
+#[cfg(target_os = "watchos")]
 pub mod os {
     pub const FAMILY: &str = "unix";
-    pub const OS: &str = "espidf";
+    pub const OS: &str = "watchos";
     pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".so";
-    pub const DLL_EXTENSION: &str = "so";
+    pub const DLL_SUFFIX: &str = ".dylib";
+    pub const DLL_EXTENSION: &str = "dylib";
     pub const EXE_SUFFIX: &str = "";
     pub const EXE_EXTENSION: &str = "";
 }
 
-#[cfg(target_os = "aix")]
+#[cfg(target_os = "windows")]
 pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "aix";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".a";
-    pub const DLL_EXTENSION: &str = "a";
+    pub const FAMILY: &str = "windows";
+    pub const OS: &str = "windows";
+    pub const DLL_PREFIX: &str = "";
+    pub const DLL_SUFFIX: &str = ".dll";
+    pub const DLL_EXTENSION: &str = "dll";
+    pub const EXE_SUFFIX: &str = ".exe";
+    pub const EXE_EXTENSION: &str = "exe";
+}
+
+// The fallback when none of the other gates match.
+#[else]
+pub mod os {
+    pub const FAMILY: &str = "";
+    pub const OS: &str = "";
+    pub const DLL_PREFIX: &str = "";
+    pub const DLL_SUFFIX: &str = "";
+    pub const DLL_EXTENSION: &str = "";
     pub const EXE_SUFFIX: &str = "";
     pub const EXE_EXTENSION: &str = "";
 }
 
-#[cfg(target_os = "nuttx")]
-pub mod os {
-    pub const FAMILY: &str = "unix";
-    pub const OS: &str = "nuttx";
-    pub const DLL_PREFIX: &str = "lib";
-    pub const DLL_SUFFIX: &str = ".so";
-    pub const DLL_EXTENSION: &str = "so";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
 }

library/std/src/sys/mod.rs

@@ -12,6 +12,7 @@ pub mod anonymous_pipe;
 pub mod args;
 pub mod backtrace;
 pub mod cmath;
+pub mod env_consts;
 pub mod exit_guard;
 pub mod fd;
 pub mod fs;

library/std/src/sys/pal/hermit/env.rs

@@ -1,9 +0,0 @@
-pub mod os {
-    pub const FAMILY: &str = "";
-    pub const OS: &str = "hermit";
-    pub const DLL_PREFIX: &str = "";
-    pub const DLL_SUFFIX: &str = "";
-    pub const DLL_EXTENSION: &str = "";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}

library/std/src/sys/pal/hermit/mod.rs

@@ -18,7 +18,6 @@
 
 use crate::os::raw::c_char;
 
-pub mod env;
 pub mod futex;
 pub mod os;
 #[path = "../unsupported/pipe.rs"]

library/std/src/sys/pal/sgx/env.rs

@@ -1,9 +0,0 @@
-pub mod os {
-    pub const FAMILY: &str = "";
-    pub const OS: &str = "";
-    pub const DLL_PREFIX: &str = "";
-    pub const DLL_SUFFIX: &str = ".sgxs";
-    pub const DLL_EXTENSION: &str = "sgxs";
-    pub const EXE_SUFFIX: &str = ".sgxs";
-    pub const EXE_EXTENSION: &str = "sgxs";
-}

library/std/src/sys/pal/sgx/mod.rs

@@ -9,7 +9,6 @@ use crate::io::ErrorKind;
 use crate::sync::atomic::{AtomicBool, Ordering};
 
 pub mod abi;
-pub mod env;
 mod libunwind_integration;
 pub mod os;
 #[path = "../unsupported/pipe.rs"]

library/std/src/sys/pal/solid/env.rs

@@ -1,9 +0,0 @@
-pub mod os {
-    pub const FAMILY: &str = "itron";
-    pub const OS: &str = "solid";
-    pub const DLL_PREFIX: &str = "";
-    pub const DLL_SUFFIX: &str = ".so";
-    pub const DLL_EXTENSION: &str = "so";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}

library/std/src/sys/pal/solid/mod.rs

@@ -16,7 +16,6 @@ pub mod itron {
     use super::unsupported;
 }
 
-pub mod env;
 // `error` is `pub(crate)` so that it can be accessed by `itron/error.rs` as
 // `crate::sys::error`
 pub(crate) mod error;

library/std/src/sys/pal/teeos/mod.rs

@@ -6,9 +6,6 @@
 #![allow(unused_variables)]
 #![allow(dead_code)]
 
-#[path = "../unsupported/env.rs"]
-pub mod env;
-//pub mod fd;
 pub mod os;
 #[path = "../unsupported/pipe.rs"]
 pub mod pipe;

library/std/src/sys/pal/trusty/mod.rs

@@ -3,8 +3,6 @@
 #[path = "../unsupported/common.rs"]
 #[deny(unsafe_op_in_unsafe_fn)]
 mod common;
-#[path = "../unsupported/env.rs"]
-pub mod env;
 #[path = "../unsupported/os.rs"]
 pub mod os;
 #[path = "../unsupported/pipe.rs"]

library/std/src/sys/pal/uefi/env.rs

@@ -1,9 +0,0 @@
-pub mod os {
-    pub const FAMILY: &str = "";
-    pub const OS: &str = "uefi";
-    pub const DLL_PREFIX: &str = "";
-    pub const DLL_SUFFIX: &str = "";
-    pub const DLL_EXTENSION: &str = "";
-    pub const EXE_SUFFIX: &str = ".efi";
-    pub const EXE_EXTENSION: &str = "efi";
-}

library/std/src/sys/pal/uefi/mod.rs

@@ -13,7 +13,6 @@
 //! [`OsString`]: crate::ffi::OsString
 #![forbid(unsafe_op_in_unsafe_fn)]
 
-pub mod env;
 pub mod helpers;
 pub mod os;
 #[path = "../unsupported/pipe.rs"]

library/std/src/sys/pal/unix/mod.rs

@@ -6,7 +6,6 @@ use crate::io::ErrorKind;
 #[macro_use]
 pub mod weak;
 
-pub mod env;
 #[cfg(target_os = "fuchsia")]
 pub mod fuchsia;
 pub mod futex;

library/std/src/sys/pal/unsupported/env.rs

@@ -1,9 +0,0 @@
-pub mod os {
-    pub const FAMILY: &str = "";
-    pub const OS: &str = "";
-    pub const DLL_PREFIX: &str = "";
-    pub const DLL_SUFFIX: &str = "";
-    pub const DLL_EXTENSION: &str = "";
-    pub const EXE_SUFFIX: &str = "";
-    pub const EXE_EXTENSION: &str = "";
-}

library/std/src/sys/pal/unsupported/mod.rs

@@ -1,6 +1,5 @@
 #![deny(unsafe_op_in_unsafe_fn)]
 
-pub mod env;
 pub mod os;
 pub mod pipe;
 pub mod thread;

library/std/src/sys/pal/wasi/env.rs

@@ -1,11 +0,0 @@
-#![forbid(unsafe_op_in_unsafe_fn)]
-
-pub mod os {
-    pub const FAMILY: &str = "";
-    pub const OS: &str = "";
-    pub const DLL_PREFIX: &str = "";
-    pub const DLL_SUFFIX: &str = ".wasm";
-    pub const DLL_EXTENSION: &str = "wasm";
-    pub const EXE_SUFFIX: &str = ".wasm";
-    pub const EXE_EXTENSION: &str = "wasm";
-}

library/std/src/sys/pal/wasi/mod.rs

@@ -13,7 +13,6 @@
 //! compiling for wasm. That way it's a compile time error for something that's
 //! guaranteed to be a runtime error!
 
-pub mod env;
 #[allow(unused)]
 #[path = "../wasm/atomics/futex.rs"]
 pub mod futex;

library/std/src/sys/pal/wasip2/mod.rs

@@ -6,8 +6,6 @@
 //! To begin with, this target mirrors the wasi target 1 to 1, but over
 //! time this will change significantly.
 
-#[path = "../wasi/env.rs"]
-pub mod env;
 #[allow(unused)]
 #[path = "../wasm/atomics/futex.rs"]
 pub mod futex;

library/std/src/sys/pal/wasm/env.rs

@@ -1,9 +0,0 @@
-pub mod os {
-    pub const FAMILY: &str = "";
-    pub const OS: &str = "";
-    pub const DLL_PREFIX: &str = "";
-    pub const DLL_SUFFIX: &str = ".wasm";
-    pub const DLL_EXTENSION: &str = "wasm";
-    pub const EXE_SUFFIX: &str = ".wasm";
-    pub const EXE_EXTENSION: &str = "wasm";
-}

library/std/src/sys/pal/wasm/mod.rs

@@ -16,7 +16,6 @@
 
 #![deny(unsafe_op_in_unsafe_fn)]
 
-pub mod env;
 #[path = "../unsupported/os.rs"]
 pub mod os;
 #[path = "../unsupported/pipe.rs"]

library/std/src/sys/pal/windows/env.rs

@@ -1,9 +0,0 @@
-pub mod os {
-    pub const FAMILY: &str = "windows";
-    pub const OS: &str = "windows";
-    pub const DLL_PREFIX: &str = "";
-    pub const DLL_SUFFIX: &str = ".dll";
-    pub const DLL_EXTENSION: &str = "dll";
-    pub const EXE_SUFFIX: &str = ".exe";
-    pub const EXE_EXTENSION: &str = "exe";
-}

library/std/src/sys/pal/windows/mod.rs

@@ -15,7 +15,6 @@ pub mod compat;
 pub mod api;
 
 pub mod c;
-pub mod env;
 #[cfg(not(target_vendor = "win7"))]
 pub mod futex;
 pub mod handle;

library/std/src/sys/pal/xous/mod.rs

@@ -1,7 +1,5 @@
 #![forbid(unsafe_op_in_unsafe_fn)]
 
-#[path = "../unsupported/env.rs"]
-pub mod env;
 pub mod os;
 #[path = "../unsupported/pipe.rs"]
 pub mod pipe;

library/std/src/sys/pal/zkvm/mod.rs

@@ -11,7 +11,6 @@
 pub const WORD_SIZE: usize = size_of::<u32>();
 
 pub mod abi;
-pub mod env;
 pub mod os;
 #[path = "../unsupported/pipe.rs"]
 pub mod pipe;