fix(backtrace):Use more reasonable compile options (#1056)

* fix(backtrace):Use more reasonable compile options

* 调整代码，同时解决rust analyzer未能提示warning的问题
---------

Co-authored-by: longjin <longjin@DragonOS.org>

kernel/crates/unified-init/Cargo.toml

@@ -11,4 +11,4 @@ path = "src/main.rs"
 [dependencies]
 unified-init-macros = { path = "macros" }
 linkme = "=0.3.27"
-system_error = { path = "../system_error" }
+system_error = { path = "../system_error" }

kernel/crates/unified-init/src/main.rs

@@ -2,6 +2,8 @@
 //! 然后在当前目录执行 `cargo expand --bin unified-init-expand`
 //! 就可以看到把proc macro展开后的代码了
 #![no_std]
+#![allow(internal_features)]
+#![feature(lang_items)]
 
 fn main() {
     todo!()
@@ -14,6 +16,10 @@ pub fn panic(_info: &core::panic::PanicInfo) -> ! {
     loop {}
 }
 
+#[cfg(target_os = "none")]
+#[lang = "eh_personality"]
+unsafe extern "C" fn eh_personality() {}
+
 #[cfg(test)]
 mod tests {
     use system_error::SystemError;