Auto merge of #119767 - GuillaumeGomez:rollup-fbp26yb, r=GuillaumeGomez

Rollup of 9 pull requests

Successful merges:

 - #117556 (Disallow reference to `static mut` and adding `static_mut_ref` lint)
 - #118748 (std: getrandom simplification for freebsd.)
 - #119282 (Rework and improve the unstable documentation of check-cfg)
 - #119527 (don't reexport atomic::ordering via rustc_data_structures, use std import)
 - #119668 (Simplify implementation of MIR promotion)
 - #119699 (Merge dead bb pruning and unreachable bb deduplication.)
 - #119723 (Remove `-Zdont-buffer-diagnostics`.)
 - #119756 (rustdoc-search: reuse individual types in function signatures)
 - #119758 (GNU/Hurd: unconditionally use inline stack probes)

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

6 files changed, 13 insertions, 11 deletions

diff --git a/library/panic_unwind/src/seh.rs b/library/panic_unwind/src/seh.rs
index 99db00e5490..ccae406cc28 100644
--- a/library/panic_unwind/src/seh.rs
+++ b/library/panic_unwind/src/seh.rs
@@ -261,6 +261,8 @@ cfg_if::cfg_if! {
    }
 }
 
+// FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_ref` lint
+#[cfg_attr(not(bootstrap), allow(static_mut_ref))]
 pub unsafe fn panic(data: Box<dyn Any + Send>) -> u32 {
     use core::intrinsics::atomic_store_seqcst;
 
@@ -322,6 +324,8 @@ pub unsafe fn panic(data: Box<dyn Any + Send>) -> u32 {
     _CxxThrowException(throw_ptr, &mut THROW_INFO as *mut _ as *mut _);
 }
 
+// FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_ref` lint
+#[cfg_attr(not(bootstrap), allow(static_mut_ref))]
 pub unsafe fn cleanup(payload: *mut u8) -> Box<dyn Any + Send> {
     // A null payload here means that we got here from the catch (...) of
     // __rust_try. This happens when a non-Rust foreign exception is caught.
diff --git a/library/std/src/panicking.rs b/library/std/src/panicking.rs
index 66b4ec37c8e..c80f15d8a61 100644
--- a/library/std/src/panicking.rs
+++ b/library/std/src/panicking.rs
@@ -337,6 +337,8 @@ pub mod panic_count {
 #[doc(hidden)]
 #[cfg(not(feature = "panic_immediate_abort"))]
 #[unstable(feature = "update_panic_count", issue = "none")]
+// FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_ref` lint
+#[cfg_attr(not(bootstrap), allow(static_mut_ref))]
 pub mod panic_count {
     use crate::cell::Cell;
     use crate::sync::atomic::{AtomicUsize, Ordering};
diff --git a/library/std/src/sys/common/thread_local/fast_local.rs b/library/std/src/sys/common/thread_local/fast_local.rs
index c0a9619bf7b..9206588be06 100644
--- a/library/std/src/sys/common/thread_local/fast_local.rs
+++ b/library/std/src/sys/common/thread_local/fast_local.rs
@@ -13,6 +13,8 @@ pub macro thread_local_inner {
     (@key $t:ty, const $init:expr) => {{
         #[inline]
         #[deny(unsafe_op_in_unsafe_fn)]
+        // FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_ref` lint
+        #[cfg_attr(not(bootstrap), allow(static_mut_ref))]
         unsafe fn __getit(
             _init: $crate::option::Option<&mut $crate::option::Option<$t>>,
         ) -> $crate::option::Option<&'static $t> {
diff --git a/library/std/src/sys/common/thread_local/static_local.rs b/library/std/src/sys/common/thread_local/static_local.rs
index 5cb6c541a0e..51cba66fad7 100644
--- a/library/std/src/sys/common/thread_local/static_local.rs
+++ b/library/std/src/sys/common/thread_local/static_local.rs
@@ -11,6 +11,8 @@ pub macro thread_local_inner {
     (@key $t:ty, const $init:expr) => {{
         #[inline] // see comments below
         #[deny(unsafe_op_in_unsafe_fn)]
+        // FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_ref` lint
+        #[cfg_attr(not(bootstrap), allow(static_mut_ref))]
         unsafe fn __getit(
             _init: $crate::option::Option<&mut $crate::option::Option<$t>>,
         ) -> $crate::option::Option<&'static $t> {
diff --git a/library/std/src/sys/unix/rand.rs b/library/std/src/sys/unix/rand.rs
index 2825d167742..cf0fe0f47c5 100644
--- a/library/std/src/sys/unix/rand.rs
+++ b/library/std/src/sys/unix/rand.rs
@@ -64,17 +64,7 @@ mod imp {
 
     #[cfg(any(target_os = "espidf", target_os = "horizon", target_os = "freebsd"))]
     fn getrandom(buf: &mut [u8]) -> libc::ssize_t {
-        #[cfg(not(target_os = "freebsd"))]
-        use libc::getrandom;
-        #[cfg(target_os = "freebsd")]
-        extern "C" {
-            fn getrandom(
-                buf: *mut libc::c_void,
-                buflen: libc::size_t,
-                flags: libc::c_uint,
-            ) -> libc::ssize_t;
-        }
-        unsafe { getrandom(buf.as_mut_ptr().cast(), buf.len(), 0) }
+        unsafe { libc::getrandom(buf.as_mut_ptr().cast(), buf.len(), 0) }
     }
 
     #[cfg(not(any(
diff --git a/library/std/src/thread/local.rs b/library/std/src/thread/local.rs
index 9cf37b0e634..338567777f7 100644
--- a/library/std/src/thread/local.rs
+++ b/library/std/src/thread/local.rs
@@ -180,6 +180,8 @@ impl<T: 'static> fmt::Debug for LocalKey<T> {
 #[stable(feature = "rust1", since = "1.0.0")]
 #[cfg_attr(not(test), rustc_diagnostic_item = "thread_local_macro")]
 #[allow_internal_unstable(thread_local_internals)]
+// FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_ref` lint
+#[cfg_attr(not(bootstrap), allow(static_mut_ref))]
 macro_rules! thread_local {
     // empty (base case for the recursion)
     () => {};