修改符号导入错误地址, 改变导入方式, static变为fn

ch1/src/lang_items/panic.rs

@@ -15,7 +15,4 @@ fn panic(info: &PanicInfo) -> ! {
         println!("Panicked: {}", info.message().unwrap());
     }
     shutdown();
-    loop {
-
-    }
 }

ch1/src/main.rs

@@ -12,16 +12,19 @@ mod sbi;
 // 汇编脚本引入, 调整内核的内存布局之后, 会跳入到 rust_main中执行
 global_asm!(include_str!("entry.asm"));
 
+extern "C" {
+    fn stext();
+    fn etext();
+    fn sbss();
+    fn ebss();
+}
 
 #[no_mangle]
 pub fn rust_main(){
     init_bss();
-    println!("hello world");
 
-    let mut a = 123;
-    a = 234;
-    a = 345;
-    println!("hello world {:?}", a);
+
+    println!("stext: {:#x}, etext: {:#x}", stext as usize, etext as usize);
 
     panic!("my panic");
 }
@@ -29,11 +32,7 @@ pub fn rust_main(){
 /// ## 初始化bss段
 ///
 fn init_bss() {
-    extern "C" {
-        static mut sbss: u64;
-        static mut ebss: u64;
-    }
     unsafe {
-        (sbss..ebss).for_each(|p| (p as *mut u8).write_unaligned(0))
+        (sbss as usize..ebss as usize).for_each(|p| (p as *mut u8).write_unaligned(0))
     }
 }