fix: specify calling convention for external function declaration

ZR233 · ZR233 · commit 980a003da1c1 · 2025-09-09T12:01:30.000+08:00
diff --git a/src/pcpu.rs b/src/pcpu.rs
@@ -23,7 +23,7 @@ static ORI_EXCEPTION_VECTOR_BASE: usize = 0;
 #[percpu::def_percpu]
 pub static IRQ_HANDLER: OnceCell<&(dyn Fn() + Send + Sync)> = OnceCell::new();
 
-unsafe extern {
+unsafe extern "C" {
     fn exception_vector_base_vcpu();
 }
 

Original file line number	Diff line number	Diff line change
`@@ -23,7 +23,7 @@ static ORI_EXCEPTION_VECTOR_BASE: usize = 0;`
`23`	`23`	`#[percpu::def_percpu]`
`24`	`24`	`pub static IRQ_HANDLER: OnceCell<&(dyn Fn() + Send + Sync)> = OnceCell::new();`
`25`	`25`
`26`		`-unsafe extern {`
	`26`	`+unsafe extern "C" {`
`27`	`27`	`fn exception_vector_base_vcpu();`
`28`	`28`	`}`
`29`	`29`