Keep track of AP count, allocate bigger AP stack, stack trace function

arch/x86_64/src/panic.rs

@@ -1,6 +1,6 @@
 //! Intrinsics for panic handling
 
-use interrupt::halt;
+use interrupt;
 
 #[cfg(not(test))]
 #[lang = "eh_personality"]
@@ -10,28 +10,15 @@ extern "C" fn eh_personality() {}
 /// Required to handle panics
 #[lang = "panic_fmt"]
 extern "C" fn panic_fmt(fmt: ::core::fmt::Arguments, file: &str, line: u32) -> ! {
-    let mut rbp: usize;
-    unsafe { asm!("xchg bx, bx" : "={rbp}"(rbp) : : : "intel", "volatile"); }
-
     println!("PANIC: {}", fmt);
     println!("FILE: {}", file);
     println!("LINE: {}", line);
 
-    println!("TRACE: {:>016X}", rbp);
-    for _frame in 0..16 { //Maximum 16 frames
-        unsafe {
-            let rip = *(rbp as *const usize).offset(1);
-            println!("  {:>016X}: {:>016X}", rbp, rip);
-            if rip == 0 {
-                break;
-            }
-            rbp = *(rbp as *const usize);
-        }
-    }
+    unsafe { interrupt::stack_trace(); }
 
     println!("HALT");
     loop {
-        unsafe { halt() };
+        unsafe { interrupt::halt(); }
     }
 }
 
@@ -40,6 +27,6 @@ extern "C" fn panic_fmt(fmt: ::core::fmt::Arguments, file: &str, line: u32) -> !
 /// Required to handle panics
 pub extern "C" fn _Unwind_Resume() -> ! {
     loop {
-        unsafe { halt() }
+        unsafe { interrupt::halt(); }
     }
 }