Mark link_section attr with unsafe

library/rtstartup/rsbegin.rs

@@ -52,7 +52,7 @@ pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
 #[cfg(all(target_os = "windows", target_arch = "x86", target_env = "gnu"))]
 pub mod eh_frames {
     #[no_mangle]
-    #[link_section = ".eh_frame"]
+    #[unsafe(link_section = ".eh_frame")]
     // Marks beginning of the stack frame unwind info section
     pub static __EH_FRAME_BEGIN__: [u8; 0] = [];
 
@@ -101,10 +101,10 @@ pub mod eh_frames {
         // end of the list. Since constructors are run in reverse order, this ensures that our
         // callbacks are the first and last ones executed.
 
-        #[link_section = ".ctors.65535"] // .ctors.* : C initialization callbacks
+        #[unsafe(link_section = ".ctors.65535")] // .ctors.* : C initialization callbacks
         pub static P_INIT: unsafe extern "C" fn() = super::init;
 
-        #[link_section = ".dtors.65535"] // .dtors.* : C termination callbacks
+        #[unsafe(link_section = ".dtors.65535")] // .dtors.* : C termination callbacks
         pub static P_UNINIT: unsafe extern "C" fn() = super::uninit;
     }
 }

library/rtstartup/rsend.rs

@@ -32,6 +32,6 @@ pub mod eh_frames {
     // Terminate the frame unwind info section with a 0 as a sentinel;
     // this would be the 'length' field in a real FDE.
     #[no_mangle]
-    #[link_section = ".eh_frame"]
+    #[unsafe(link_section = ".eh_frame")]
     pub static __EH_FRAME_END__: u32 = 0;
 }

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

@@ -147,7 +147,7 @@ mod imp {
     /// This allows `std::env::args` to work even in a `cdylib`, as it does on macOS and Windows.
     #[cfg(all(target_os = "linux", target_env = "gnu"))]
     #[used]
-    #[link_section = ".init_array.00099"]
+    #[unsafe(link_section = ".init_array.00099")]
     static ARGV_INIT_ARRAY: extern "C" fn(
         crate::os::raw::c_int,
         *const *const u8,

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

@@ -39,7 +39,7 @@ use crate::sys::c;
 // See https://docs.microsoft.com/en-us/cpp/c-runtime-library/crt-initialization?view=msvc-170
 #[cfg(target_vendor = "win7")]
 #[used]
-#[link_section = ".CRT$XCT"]
+#[unsafe(link_section = ".CRT$XCT")]
 static INIT_TABLE_ENTRY: unsafe extern "C" fn() = init;
 
 /// Preload some imported functions.

library/std/src/sys/thread_local/guard/windows.rs

@@ -74,7 +74,7 @@ pub fn enable() {
     unsafe { ptr::from_ref(&CALLBACK).read_volatile() };
 }
 
-#[link_section = ".CRT$XLB"]
+#[unsafe(link_section = ".CRT$XLB")]
 #[cfg_attr(miri, used)] // Miri only considers explicitly `#[used]` statics for `lookup_link_section`
 pub static CALLBACK: unsafe extern "system" fn(*mut c_void, u32, *mut c_void) = tls_callback;