PROJECT RESTRUCTURING

Move the entire kernel into its own directory. Create new directories
for system commands, libraries and other required essentials for a
complete Unix-like operating system.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 0 insertions, 149 deletions

diff --git a/arch/i386/kernel/idt.c b/arch/i386/kernel/idt.c
deleted file mode 100644
index a178801..0000000
--- a/arch/i386/kernel/idt.c
+++ /dev/null
@@ -1,149 +0,0 @@
-#include <kernel/idt.h>
-#include <kernel/interrupt.h>
-#include <kernel/syscall.h>
-#include <kernel/panic.h>
-#include <kernel/gdt.h>
-#include <kernel/asm.h>
-#include <kernel/pic.h>
-#include <kernel/paging.h>
-#include <libk/io.h>
-#include <libk/string.h>
-#include <stdint.h>
-
-__attribute__((aligned(0x10)))
-struct idt_entry idt[256];
-struct idt_ptr idtr;
-
-const char* exceptions[] = {
-        "Division by zero",
-        "Debug",
-        "Non-maskable interrupt",
-        "Breakpoint",
-        "Overflow",
-        "Out-of-bounds",
-        "Invalid opcode",
-        "FPU not available",
-        "Double fault",
-        "RESERVED",
-        "Invalid TSS",
-        "Segment not present",
-        "Stack fault",
-        "General protection fault",
-        "Page fault",
-        "RESERVED",
-        "FPU exception",
-        "Alignment check",
-        "Machine check",
-        "FPU-SIMD exception",
-        "Virtualization exception",
-        "Control protection"
-        "RESERVED",
-        "Hypervisor injection",
-        "VMM exception",
-        "Security exception",
-        "RESERVED",
-        "Triple fault",
-        "RESERVED"
-};
-
-void exception_handler(struct isr_frame *frame) {
-        switch (frame->isr_vector) {
-                case 0x00:
-                        panic("Division by zero in kernel address space");
-                        break;
-                case 0x06:
-                        panic("Invalid opcode in kernel address space");
-                        break;
-                case 0x08:
-                        panic("Double fault in interrupt handler");
-                        break;
-                case 0x0D:
-                        panic("Protection fault in kernel address space");
-                        break;
-                case 0x0E:
-                        page_fault_handler(frame);
-                        break;
-                default:
-                        panic("Unhandled exception");
-        }
-}
-
-void generic_handler(struct isr_frame *frame) {
-        kprintf("No handler registered for IRQ %d\n", frame->isr_vector);
-        if (frame->isr_vector > 32 && frame->isr_vector < 48)
-                pic_eoi(frame->isr_vector-32);
-}
-
-void idt_set_gate(uint8_t num, void (*handler)(void), uint16_t cs, uint8_t flags) {
-        struct idt_entry *desc = &idt[num];
-        desc->isr_low = (uint16_t)(((uint32_t)handler >> 0) & 0xFFFF);
-        desc->isr_high = (uint16_t)(((uint32_t)handler >> 16) & 0xFFFF);
-        desc->reserved = 0;
-        desc->kernel_cs = cs;
-        desc->flags = flags;
-}
-
-void idt_install(void) {
-        idtr.limit = (uint16_t)sizeof(struct idt_entry) * 256 - 1;
-        idtr.base = (uint32_t)idt;
-
-        for (int i = 0; i < 32; i++)
-                register_isr_handler(i, exception_handler);
-        for (int i = 32; i < 224; i++)
-                register_isr_handler(i, generic_handler);
-        register_isr_handler(0x80, handle_syscall);
-
-        idt_set_gate(0x0, isr_stub_0, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x1, isr_stub_1, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x2, isr_stub_2, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x3, isr_stub_3, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x4, isr_stub_4, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x5, isr_stub_5, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x6, isr_stub_6, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x7, isr_stub_7, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x8, isr_stub_8, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x9, isr_stub_9, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0xA, isr_stub_10, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0xB, isr_stub_11, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0xC, isr_stub_12, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0xD, isr_stub_13, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0xE, isr_stub_14, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0xF, isr_stub_15, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x10, isr_stub_16, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x11, isr_stub_17, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x12, isr_stub_18, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x13, isr_stub_19, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x14, isr_stub_20, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x15, isr_stub_21, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x16, isr_stub_22, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x17, isr_stub_23, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x18, isr_stub_24, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x19, isr_stub_25, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x1A, isr_stub_26, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x1B, isr_stub_27, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x1C, isr_stub_28, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x1D, isr_stub_29, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x1E, isr_stub_30, 0x08, IDT_EXCEPTION);
-        idt_set_gate(0x1F, isr_stub_31, 0x08, IDT_EXCEPTION);
-
-        idt_set_gate(0x20, irq_stub_0, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x21, irq_stub_1, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x22, irq_stub_2, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x23, irq_stub_3, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x24, irq_stub_4, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x25, irq_stub_5, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x26, irq_stub_6, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x27, irq_stub_7, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x28, irq_stub_8, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x29, irq_stub_9, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x2A, irq_stub_10, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x2B, irq_stub_11, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x2C, irq_stub_12, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x2D, irq_stub_13, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x2E, irq_stub_14, 0x08, IDT_INTERRUPT);
-        idt_set_gate(0x2F, irq_stub_15, 0x08, IDT_INTERRUPT);
-
-        idt_set_gate(0x80, isr_stub_128, 0x08, IDT_INTERRUPT);
-
-        __asm__ volatile("lidt %0" : : "memory"(idtr));
-}