Auto merge of #136572 - jieyouxu:rollup-mtyaisw, r=jieyouxu

Rollup of 12 pull requests

Successful merges:

 - #132547 (cg_gcc: Directly use rustc_abi instead of reexports)
 - #135572 (tests: Port `split-debuginfo` to rmake.rs)
 - #135964 (Make cenum_impl_drop_cast a hard error)
 - #136154 (Use +secure-plt for powerpc-unknown-linux-gnu{,spe})
 - #136304 (Reject negative literals for unsigned or char types in pattern ranges and literals)
 - #136418 (uefi: process: Add support for command environment variables)
 - #136449 (std: move network code into `sys`)
 - #136517 (implement inherent str constructors)
 - #136536 (Rename and Move some UI tests to more suitable subdirs)
 - #136537 (Update `compiler-builtins` to 0.1.145)
 - #136555 (Rename `slice::take...` methods to `split_off...`)
 - #136567 (Arbitrary self types v2: recursion test)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

compiler/rustc_lint/src/lib.rs

@@ -595,6 +595,11 @@ fn register_builtins(store: &mut LintStore) {
          <https://github.com/rust-lang/rust/pull/125380> for more information",
     );
     store.register_removed("unsupported_calling_conventions", "converted into hard error");
+    store.register_removed(
+        "cenum_impl_drop_cast",
+        "converted into hard error, \
+         see <https://github.com/rust-lang/rust/issues/73333> for more information",
+    );
 }
 
 fn register_internals(store: &mut LintStore) {

compiler/rustc_lint_defs/src/builtin.rs

@@ -27,7 +27,6 @@ declare_lint_pass! {
         BARE_TRAIT_OBJECTS,
         BINDINGS_WITH_VARIANT_NAME,
         BREAK_WITH_LABEL_AND_LOOP,
-        CENUM_IMPL_DROP_CAST,
         COHERENCE_LEAK_CHECK,
         CONFLICTING_REPR_HINTS,
         CONST_EVALUATABLE_UNCHECKED,
@@ -2612,58 +2611,6 @@ declare_lint! {
     @edition Edition2024 => Warn;
 }
 
-declare_lint! {
-    /// The `cenum_impl_drop_cast` lint detects an `as` cast of a field-less
-    /// `enum` that implements [`Drop`].
-    ///
-    /// [`Drop`]: https://doc.rust-lang.org/std/ops/trait.Drop.html
-    ///
-    /// ### Example
-    ///
-    /// ```rust,compile_fail
-    /// # #![allow(unused)]
-    /// enum E {
-    ///     A,
-    /// }
-    ///
-    /// impl Drop for E {
-    ///     fn drop(&mut self) {
-    ///         println!("Drop");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     let e = E::A;
-    ///     let i = e as u32;
-    /// }
-    /// ```
-    ///
-    /// {{produces}}
-    ///
-    /// ### Explanation
-    ///
-    /// Casting a field-less `enum` that does not implement [`Copy`] to an
-    /// integer moves the value without calling `drop`. This can result in
-    /// surprising behavior if it was expected that `drop` should be called.
-    /// Calling `drop` automatically would be inconsistent with other move
-    /// operations. Since neither behavior is clear or consistent, it was
-    /// decided that a cast of this nature will no longer be allowed.
-    ///
-    /// This is a [future-incompatible] lint to transition this to a hard error
-    /// in the future. See [issue #73333] for more details.
-    ///
-    /// [future-incompatible]: ../index.md#future-incompatible-lints
-    /// [issue #73333]: https://github.com/rust-lang/rust/issues/73333
-    /// [`Copy`]: https://doc.rust-lang.org/std/marker/trait.Copy.html
-    pub CENUM_IMPL_DROP_CAST,
-    Deny,
-    "a C-like enum implementing Drop is cast",
-    @future_incompatible = FutureIncompatibleInfo {
-        reason: FutureIncompatibilityReason::FutureReleaseErrorReportInDeps,
-        reference: "issue #73333 <https://github.com/rust-lang/rust/issues/73333>",
-    };
-}
-
 declare_lint! {
     /// The `fuzzy_provenance_casts` lint detects an `as` cast between an integer
     /// and a pointer.

compiler/rustc_target/src/spec/targets/powerpc_unknown_linux_gnu.rs

@@ -18,6 +18,11 @@ pub(crate) fn target() -> Target {
         pointer_width: 32,
         data_layout: "E-m:e-p:32:32-Fn32-i64:64-n32".into(),
         arch: "powerpc".into(),
-        options: TargetOptions { endian: Endian::Big, mcount: "_mcount".into(), ..base },
+        options: TargetOptions {
+            endian: Endian::Big,
+            features: "+secure-plt".into(),
+            mcount: "_mcount".into(),
+            ..base
+        },
     }
 }

compiler/rustc_target/src/spec/targets/powerpc_unknown_linux_gnuspe.rs

@@ -21,6 +21,7 @@ pub(crate) fn target() -> Target {
         options: TargetOptions {
             abi: "spe".into(),
             endian: Endian::Big,
+            features: "+secure-plt".into(),
             mcount: "_mcount".into(),
             ..base
         },