Auto merge of rust-lang#128378 - matthiaskrgr:rollup-i3qz9uo, r=matth…

…iaskrgr

Rollup of 4 pull requests

Successful merges:

 - rust-lang#127574 (elaborate unknowable goals)
 - rust-lang#128141 (Set branch protection function attributes)
 - rust-lang#128315 (Fix vita build of std and forbid unsafe in unsafe in the os/vita module)
 - rust-lang#128339 ([rustdoc] Make the buttons remain when code example is clicked)

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

std/src/os/vita/mod.rs

@@ -1,5 +1,6 @@
 //! Definitions for vita
 
+#![forbid(unsafe_op_in_unsafe_fn)]
 #![stable(feature = "raw_ext", since = "1.1.0")]
 
 pub mod fs;

std/src/os/vita/raw.rs

@@ -10,9 +10,6 @@
 )]
 #![allow(deprecated)]
 
-use crate::os::raw::c_long;
-use crate::os::unix::raw::{gid_t, uid_t};
-
 #[stable(feature = "pthread_t", since = "1.8.0")]
 pub type pthread_t = libc::pthread_t;
 
@@ -34,37 +31,3 @@ pub type off_t = libc::off_t;
 
 #[stable(feature = "raw_ext", since = "1.1.0")]
 pub type time_t = libc::time_t;
-
-#[repr(C)]
-#[derive(Clone)]
-#[stable(feature = "raw_ext", since = "1.1.0")]
-pub struct stat {
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_dev: dev_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_ino: ino_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_mode: mode_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_nlink: nlink_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_uid: uid_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_gid: gid_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_rdev: dev_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_size: off_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_atime: time_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_mtime: time_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_ctime: time_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_blksize: blksize_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_blocks: blkcnt_t,
-    #[stable(feature = "raw_ext", since = "1.1.0")]
-    pub st_spare4: [c_long; 2usize],
-}

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

@@ -166,6 +166,7 @@ pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) {
             target_os = "fuchsia",
             target_os = "horizon",
             target_os = "vxworks",
+            target_os = "vita",
             // Unikraft's `signal` implementation is currently broken:
             // https://github.com/unikraft/lib-musl/issues/57
             target_vendor = "unikraft",
@@ -212,6 +213,7 @@ pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) {
     target_os = "fuchsia",
     target_os = "horizon",
     target_os = "vxworks",
+    target_os = "vita",
 )))]
 static ON_BROKEN_PIPE_FLAG_USED: crate::sync::atomic::AtomicBool =
     crate::sync::atomic::AtomicBool::new(false);
@@ -222,6 +224,7 @@ static ON_BROKEN_PIPE_FLAG_USED: crate::sync::atomic::AtomicBool =
     target_os = "fuchsia",
     target_os = "horizon",
     target_os = "vxworks",
+    target_os = "vita",
 )))]
 pub(crate) fn on_broken_pipe_flag_used() -> bool {
     ON_BROKEN_PIPE_FLAG_USED.load(crate::sync::atomic::Ordering::Relaxed)

std/src/sys/pal/unix/process/process_common.rs

@@ -124,6 +124,7 @@ pub struct StdioPipes {
 
 // passed to do_exec() with configuration of what the child stdio should look
 // like
+#[cfg_attr(target_os = "vita", allow(dead_code))]
 pub struct ChildPipes {
     pub stdin: ChildStdio,
     pub stdout: ChildStdio,