From c2d2679a37ccf98e1294dcf041610addec9a60ee Mon Sep 17 00:00:00 2001
From: Alan Jian <alanjian85@outlook.com>
Date: Fri, 21 Jun 2024 09:36:15 +0800
Subject: [PATCH] Hang the system in kernel panic

---
 include/hang.h        | 6 ++++++
 src/log.c             | 2 ++
 src/syscalls/reboot.c | 6 +-----
 3 files changed, 9 insertions(+), 5 deletions(-)
 create mode 100644 include/hang.h

diff --git a/include/hang.h b/include/hang.h
new file mode 100644
index 0000000..1f55e74
--- /dev/null
+++ b/include/hang.h
@@ -0,0 +1,6 @@
+#pragma once
+
+[[noreturn]] static inline void hang() {
+    while (true)
+        ;
+}
diff --git a/src/log.c b/src/log.c
index e0404ed..75ddd54 100644
--- a/src/log.c
+++ b/src/log.c
@@ -3,6 +3,7 @@
 #include <config.h>
 #include <dev.h>
 #include <driver.h>
+#include <hang.h>
 #include <init.h>
 #include <module.h>
 #include <stdarg.h>
@@ -80,6 +81,7 @@ void klogf(log_severity_t severity, const char *fmt, ...) {
         break;
     case LOG_SEVERITY_PANIC:
         kprintf("[\x1B[41mpanic\x1B[0m] ");
+        hang();
         break;
     }
     kvprintf(fmt, args);
diff --git a/src/syscalls/reboot.c b/src/syscalls/reboot.c
index 2d47247..089a6c6 100644
--- a/src/syscalls/reboot.c
+++ b/src/syscalls/reboot.c
@@ -1,6 +1,7 @@
 #include <syscall.h>
 
 #include <errno.h>
+#include <hang.h>
 #include <sbi.h>
 
 typedef enum {
@@ -9,11 +10,6 @@ typedef enum {
     REBOOT_TYPE_HANG = 2,
 } reboot_type_t;
 
-[[noreturn]] void hang(void) {
-    while (true)
-        ;
-}
-
 isize sys_reboot(const trapframe_t *frame) {
     reboot_type_t type = frame->a0;