Added klog as a new logging system

* The logging system sends the message to both VGA and serial
* The serial print uses color to indicate the category of the message

Message Categories  |  Colours
Debug			Green
Info			Blue
Error			Red

kernel/Makefile

@@ -35,7 +35,8 @@ OFILES = $(OBJ_DIR)/boot.o	\
 		 $(OBJ_DIR)/rsdp.o \
 		 $(OBJ_DIR)/acpi.o \
 		 $(OBJ_DIR)/fat.o \
-		 $(OBJ_DIR)/serial.o
+		 $(OBJ_DIR)/serial.o \
+		 $(OBJ_DIR)/klog.o
 
 OBJ_LINK_LIST = $(CRTI_OBJ) $(CRTBEGIN_OBJ) $(OFILES) $(CRTEND_OBJ) $(CRTN_OBJ)  
 INTERNAL_OBJS = $(CRTI_OBJ) $(OFILES) $(CRTN_OBJ)
@@ -125,7 +126,8 @@ $(OBJ_DIR)/fat.o:
 $(OBJ_DIR)/serial.o:
 	$(CPP) -c drivers/serial/serial.cpp -o $(OBJ_DIR)/serial.o $(CFLAGS) -fno-exceptions -fno-rtti
 
-
+$(OBJ_DIR)/klog.o:
+	$(CPP) -c klog.cpp -o $(OBJ_DIR)/klog.o $(CFLAGS) -fno-exceptions -fno-rtti
 
 # Assembly -> Object files
 $(OBJ_DIR)/boot.o:

kernel/kernel.cpp

@@ -16,7 +16,8 @@
 #include "storage/filesystems/FAT/FAT.h"
 #include "acpi/acpi.h"
 #include "memory/VirtualMemoryManager.h"
-#include "drivers/serial/serial.h"
+#include "klog.h"
+
 
 extern BootInfoBlock* BIB;
 extern "C"  void LoadGlobalDescriptorTable();
@@ -45,9 +46,14 @@ extern "C" void kernel ()
     initidt();
     LoadGlobalDescriptorTable();
     flush_tss();
-    printf("Memory setup complete!\n");
+
+
+    print_info("Memory setup complete!\n");
     // Enable interrupts
     asm volatile("STI");
+
+
+
     initHeap();
     //pit_initialise();
 
@@ -59,16 +65,9 @@ extern "C" void kernel ()
     initBootDrive();
     VirtualFileSystem::initialize();
 
-
-    // Test new serial driver
-    SerialConfig debug_com1_config{
-            COM1,
-            0x03,
-            0x00
-    };
-    Serial com1 = Serial(debug_com1_config);
-
-    com1.write((void*)"Hello world!\n", 14);
+    print_dbg("Hello debug!\n");
+    print_info("Hello info!\n");
+    print_err("Hello error!\n");
 
 #define VFS_EXAMPLE
 #ifdef VFS_EXAMPLE

kernel/klog.cpp

@@ -0,0 +1,58 @@
+//
+// Created by nigel on 10/28/23.
+//
+#include "klog.h"
+#include "terminal/kterm.h"
+#include <CoreLib/Memory.h>
+
+const char* ForeGroundColourReset = "\e[39m";
+void print_dbg(const char* message, ...){
+    auto **arg = (unsigned char**)&message;
+    // Send it to the VGA
+    printf(message, arg);
+
+    // Now send the message to the serial
+    Serial com1= Serial({
+                        COM1,
+                        0x03,
+                        0x00
+                });
+
+    const char* ForeGroundColour = "\e[32m";
+    com1.write((void*)ForeGroundColour, strlen(ForeGroundColour));
+    com1.write((void*)message, strlen(message));
+    com1.write((void*)ForeGroundColourReset, strlen(ForeGroundColourReset));
+
+}
+
+
+void print_info(const char* message, ...){
+    auto **arg = (unsigned char**)&message;
+    // Send it to the VGA
+    printf(message, arg);
+
+    Serial com1 = Serial({
+        COM1,
+        0x03,
+        0x00
+    });
+
+    const char* ForeGroundColour = "\e[34m";
+    com1.write((void*)ForeGroundColour, strlen(ForeGroundColour));
+    com1.write((void*)message, strlen(message));
+    com1.write((void*)ForeGroundColourReset, strlen(ForeGroundColourReset));
+}
+void print_err(const char* message, ...){
+    auto **arg = (unsigned char**)&message;
+    // Send it to the VGA
+    printf(message, arg);
+    Serial com1 = Serial({
+                                 COM1,
+                                 0x03,
+                                 0x00
+                         });
+    const char* ForeGroundColour = "\e[31m";
+    com1.write((void*)ForeGroundColour, strlen(ForeGroundColour));
+    com1.write((void*)message, strlen(message));
+    com1.write((void*)ForeGroundColourReset, strlen(ForeGroundColourReset));
+}

kernel/klog.h

@@ -0,0 +1,12 @@
+//
+// Created by nigel on 10/28/23.
+//
+#pragma once
+
+#include "drivers/serial/serial.h"
+
+
+
+void print_dbg(const char* message, ...);
+void print_info(const char* message, ...);
+void print_err(const char* message, ...);