Add CMake, Ninja, and Conan support with kernel modules (GDT, interrupts)

Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>

kernel/include/kernel/gdt.h

@@ -0,0 +1,25 @@
+#ifndef METALOS_KERNEL_GDT_H
+#define METALOS_KERNEL_GDT_H
+
+#include <stdint.h>
+
+// GDT Entry structure
+typedef struct {
+    uint16_t limit_low;
+    uint16_t base_low;
+    uint8_t base_middle;
+    uint8_t access;
+    uint8_t granularity;
+    uint8_t base_high;
+} __attribute__((packed)) gdt_entry_t;
+
+// GDT Pointer structure
+typedef struct {
+    uint16_t limit;
+    uint64_t base;
+} __attribute__((packed)) gdt_ptr_t;
+
+// Initialize the Global Descriptor Table
+void gdt_init(void);
+
+#endif // METALOS_KERNEL_GDT_H

kernel/include/kernel/interrupts.h

@@ -0,0 +1,37 @@
+#ifndef METALOS_KERNEL_INTERRUPTS_H
+#define METALOS_KERNEL_INTERRUPTS_H
+
+#include <stdint.h>
+
+// IDT Entry structure
+typedef struct {
+    uint16_t offset_low;    // Offset bits 0-15
+    uint16_t selector;      // Code segment selector
+    uint8_t ist;            // Interrupt Stack Table offset
+    uint8_t type_attr;      // Type and attributes
+    uint16_t offset_mid;    // Offset bits 16-31
+    uint32_t offset_high;   // Offset bits 32-63
+    uint32_t zero;          // Reserved
+} __attribute__((packed)) idt_entry_t;
+
+// IDT Pointer structure
+typedef struct {
+    uint16_t limit;
+    uint64_t base;
+} __attribute__((packed)) idt_ptr_t;
+
+// CPU registers state (for interrupt handlers)
+typedef struct {
+    uint64_t r15, r14, r13, r12, r11, r10, r9, r8;
+    uint64_t rbp, rdi, rsi, rdx, rcx, rbx, rax;
+    uint64_t int_no, err_code;
+    uint64_t rip, cs, rflags, rsp, ss;
+} __attribute__((packed)) registers_t;
+
+// Initialize Interrupt Descriptor Table
+void idt_init(void);
+
+// Generic interrupt handler (called from assembly)
+void interrupt_handler(registers_t* regs);
+
+#endif // METALOS_KERNEL_INTERRUPTS_H