Merge pull request rustsbi#55 from wenhaozhao/fix-mutable-reference-of-mutable-static-error

fix compile error with rustc 1.77.0-nightly (62d7ed4a6 2024-01-11)

Author: luojia65

bench-kernel/src/main.rs

@@ -33,8 +33,8 @@ extern "C" fn rust_main(hartid: usize, _dtb_pa: usize) -> ! {
         static mut ebss: u64;
     }
     unsafe {
-        let mut ptr = &mut sbss as *mut u64;
-        let end = &mut ebss as *mut u64;
+        let mut ptr = sbss as *mut u64;
+        let end = ebss as *mut u64;
         while ptr < end {
             ptr.write_volatile(0);
             ptr = ptr.offset(1);

rustsbi-qemu/src/main.rs

@@ -72,8 +72,8 @@ extern "C" fn rust_main(hartid: usize, opaque: usize) {
             static mut ebss: u64;
         }
         unsafe {
-            let mut ptr = &mut sbss as *mut u64;
-            let end = &mut ebss as *mut u64;
+            let mut ptr = sbss as *mut u64;
+            let end = ebss as *mut u64;
             while ptr < end {
                 ptr.write_volatile(0);
                 ptr = ptr.offset(1);

test-kernel/src/main.rs

@@ -40,8 +40,8 @@ extern "C" fn rust_main(hartid: usize, dtb_pa: usize) -> ! {
         static mut ebss: u64;
     }
     unsafe {
-        let mut ptr = &mut sbss as *mut u64;
-        let end = &mut ebss as *mut u64;
+        let mut ptr = sbss as *mut u64;
+        let end = ebss as *mut u64;
         while ptr < end {
             ptr.write_volatile(0);
             ptr = ptr.offset(1);