Add Kernel object

- Implement halt()
- Call the system kernel halt() method at the end of kmain()

src/Attributes.hh

@@ -13,5 +13,6 @@
 #define __ATTRIBUTES_HH__
 
 #define PACKED __attribute__((packed))
+#define NORETURN __attribute((noreturn))
 
 #endif /* __ATTRIBUTES_HH__ */

src/Kernel.cc

@@ -0,0 +1,54 @@
+/* Kernel.cc
+ * vim: set tw=80:
+ * Eryn Wells <eryn@erynwells.me>
+ */
+/**
+ * Kernel object. This is the highest level object in the system.
+ */
+
+#include "Kernel.hh"
+#include "Interrupts.hh"
+
+namespace {
+
+static kernel::Kernel sKernel;
+    
+} /* anonymous namespace */
+
+namespace kernel {
+
+/*
+ * Static
+ */
+
+Kernel*
+Kernel::systemKernel()
+{
+    return &sKernel;
+}
+
+/*
+ * Public
+ */
+
+void
+Kernel::panic(const char* msg,
+              ...)
+{
+
+}
+
+/*
+ * Private
+ */
+
+void
+Kernel::halt()
+{
+    x86::InterruptHandler::systemInterruptHandler().disableInterrupts();
+    for (;;) {
+        asm("hlt");
+    }
+}
+
+} /* namespace kernel */

src/Kernel.hh

@@ -0,0 +1,28 @@
+/* Kernel.hh
+ * vim: set tw=80:
+ * Eryn Wells <eryn@erynwells.me>
+ */
+/**
+ * Kernel object. This is the highest level object in the system.
+ */
+
+#ifndef __KERNEL_HH__
+#define __KERNEL_HH__
+
+#include "Attributes.hh"
+
+
+namespace kernel {
+
+struct Kernel
+{
+    static Kernel* systemKernel();
+
+    void panic(const char* msg, ...);
+
+    void halt() NORETURN;
+};
+
+} /* namespace kernel */
+
+#endif /* __KERNEL_HH__ */

src/Main.cc

@@ -10,6 +10,7 @@
 #include "Console.hh"
 #include "Descriptors.hh"
 #include "Interrupts.hh"
+#include "Kernel.hh"
 #include "Multiboot.hh"
 #include "kstd/Types.hh"
 
@@ -74,5 +75,5 @@ kmain(multiboot::Information *information)
     interruptHandler.enableInterrupts();
     console.printString("Interrupts enabled\n");
 
-    for (;;) { }
+    kernel::Kernel::systemKernel()->halt();
 }

src/SConscript

@@ -14,6 +14,7 @@ files = [
     'ConsolePrintFormat.cc',
     'Descriptors.cc',
     'Interrupts.cc',
+    'Kernel.cc',
     'Multiboot.cc',
     'PIC.cc',
     'cxa.cc',