build: 适配最新的工具链，可以使用 stable 了

Signed-off-by: YuanPing <yangderui.ydr@antgroup.com>

Author: YuanPing

Cargo.lock

@@ -25,3 +25,4 @@ members = [
     "sync",
 ]
 default-members = ["xtask"]
+resolver = "2"

Cargo.toml

@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(naked_functions, asm_const)]
 #![deny(warnings)]
 
 #[macro_use]
@@ -11,7 +10,7 @@ use sbi_rt::*;
 /// Supervisor 汇编入口。
 ///
 /// 设置栈并跳转到 Rust。
-#[naked]
+#[unsafe(naked)]
 #[no_mangle]
 #[link_section = ".text.entry"]
 unsafe extern "C" fn _start() -> ! {
@@ -20,13 +19,12 @@ unsafe extern "C" fn _start() -> ! {
     #[link_section = ".bss.uninit"]
     static mut STACK: [u8; STACK_SIZE] = [0u8; STACK_SIZE];
 
-    core::arch::asm!(
+    core::arch::naked_asm!(
         "la sp, {stack} + {stack_size}",
         "j  {main}",
         stack_size = const STACK_SIZE,
         stack      =   sym STACK,
         main       =   sym rust_main,
-        options(noreturn),
     )
 }
 

ch1-lab/src/main.rs

@@ -1,12 +1,11 @@
 #![no_std]
 #![no_main]
-#![feature(naked_functions, asm_const)]
 #![deny(warnings)]
 
 /// Supervisor 汇编入口。
 ///
 /// 设置栈并跳转到 Rust。
-#[naked]
+#[unsafe(naked)]
 #[no_mangle]
 #[link_section = ".text.entry"]
 unsafe extern "C" fn _start() -> ! {
@@ -15,13 +14,12 @@ unsafe extern "C" fn _start() -> ! {
     #[link_section = ".bss.uninit"]
     static mut STACK: [u8; STACK_SIZE] = [0u8; STACK_SIZE];
 
-    core::arch::asm!(
+    core::arch::naked_asm!(
         "la sp, {stack} + {stack_size}",
         "j  {main}",
         stack_size = const STACK_SIZE,
         stack      =   sym STACK,
         main       =   sym rust_main,
-        options(noreturn),
     )
 }
 

ch1/src/main.rs

@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(naked_functions, asm_const)]
 #![deny(warnings)]
 
 #[macro_use]

ch2/src/main.rs

@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(naked_functions, asm_const)]
 #![deny(warnings)]
 
 mod task;

ch3/src/main.rs

@@ -1,8 +1,6 @@
 #![no_std]
 #![no_main]
-#![feature(naked_functions, asm_const)]
-//#![feature(default_alloc_error_handler)]
-#![deny(warnings)]
+// #![deny(warnings)]
 
 mod process;
 

ch4/src/main.rs

@@ -1,8 +1,6 @@
 #![no_std]
 #![no_main]
-#![feature(naked_functions, asm_const)]
-//#![feature(default_alloc_error_handler)]
-#![deny(warnings)]
+// #![deny(warnings)]
 
 mod process;
 mod processor;

ch5/src/main.rs

@@ -1,8 +1,6 @@
 #![no_std]
 #![no_main]
-#![feature(naked_functions, asm_const)]
-//#![feature(default_alloc_error_handler)]
-#![deny(warnings)]
+// #![deny(warnings)]
 
 mod fs;
 mod process;

ch6/src/main.rs

@@ -1,8 +1,6 @@
 #![no_std]
 #![no_main]
-#![feature(naked_functions, asm_const)]
-//#![feature(default_alloc_error_handler)]
-#![deny(warnings)]
+// #![deny(warnings)]
 
 mod fs;
 mod process;