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/* Check if the compiler thinks you are targeting the wrong operating system. */
#if defined(__linux__)
#error "You are not using a cross-compiler"
#endif
/* This tutorial will only work for the 32-bit ix86 targets. */
#if !defined(__i386__)
#error "This tutorial needs to be compiled with a ix86-elf compiler"
#endif
#include <stdlib.h>
#include <types.h>
#include "cga.h"
#include "gdt.h"
#include "idt.h"
#include "scheduler.h"
#include "serial.h"
#include "keyboard.h"
#include "hardware.h"
typedef void (*constructor)();
extern "C" {
constructor begin_ctors;
constructor end_ctors;
void kernel_constructors() {
for (constructor* i = &begin_ctors; i != &end_ctors; ++i) (*i)();
}
void dump_multiboot(uint32_t mb_magic, uint32_t mb_addr);
void dump_gdt();
void kernel_main([[maybe_unused]] uint32_t mb_magic, [[maybe_unused]] uint32_t mb_addr) {
#ifdef HAS_SERIAL0
if constexpr (serial0_console)
if (serial0.self_check()) Console::set(&serial0);
#endif
#ifdef HAS_VIDEO0
if constexpr (video0_console) Console::set(&video0);
#endif
printk("Hello, kernel World!\n");
dump_multiboot(mb_magic, mb_addr + 0xc0000000);
// dump_gdt();
GDT gdt;
IDT idt{gdt.descriptor(GDT::kcode)};
Scheduler s{gdt.descriptor(GDT::kcode)};
Keyboard kb;
idt.enable();
while (true) asm volatile("hlt");
}
} // extern "C"
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