Expanded kernel panic function.

1 files changed, 41 insertions, 0 deletions

diff --git a/kernel/panic.c b/kernel/panic.c
new file mode 100644
index 0000000..bdd4e93
--- /dev/null
+++ b/kernel/panic.c
@@ -0,0 +1,41 @@
+#include "panic.h"
+#include "printf.h"
+
+char* panic_msg[] = {
+	"#DE - Divide error.",
+	"#DB",
+	"#2",
+	"#BP",
+	"#OF",
+	"#BR",
+	"#UD - Invalid opcode.",
+	"#NM",
+	"#DF - Double fault.",
+	"#9",
+	"#TS",
+	"#NP",
+	"#SS",
+	"#GP - General protection fault.",
+	"#PF - Page fault.",
+	"#15",
+	"#MF",
+	"#AC",
+	"#MC",
+	"#XM",
+	[20 ... 31] = "Undefined exception."
+};
+
+void panic(panic_stack_t stack) {
+	printf("Kernel panic: %s\n", panic_msg[stack.num]);
+	printf("INT: %8u      EC: %08x\n", stack.num, stack.error_code);
+	printf(" CS:     %04x      DS:     %04x      SS: %04x\n", stack.cs, stack.ds, stack.ss);
+	printf("EIP: %08x  EFLAGS: %08x\n", stack.eip, stack.eflags);
+	printf("EAX: %08x     EBX: %08x     ECX: %08x     EDX: %08x\n", stack.eax, stack.ebx, stack.ecx, stack.edx);
+	printf("ESP: %08x     EBP: %08x     ESI: %08x     EDI: %08x\n", stack.esp, stack.ebp, stack.esi, stack.edi);
+	
+	asm volatile(
+		"cli\n"
+		"hlt\n"
+	);
+	while(1);
+}