42_KFS/src/kernel.c

#include "gdt.h"
#include "kprintf.h"
#include "memory.h"
#include "shell.h"
#include "string.h"
#include "terminal.h"

#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

/* Check if the compiler thinks you are targeting the wrong operating system. */
#if defined(__linux__)
#error                                                                         \
    "You are not using a cross-compiler, you will most certainly run into trouble"
#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

void kernel_main(void)
{
	terminal_initialize();
	init_gdt();
	init_memory();
	char *str = kalloc_frame(104831);
	str = kalloc_frame(104831);
	str = kalloc_frame(104831);
	str = kalloc_frame(104831);
	str = kalloc_frame(104831);
	str = kalloc_frame(104831);
	str = kalloc_frame(104831);
	str = kalloc_frame(104831);
	str = kalloc_frame(104831);
	str = kalloc_frame(104831);
	kfree_frame(str, 104831);
	str = kalloc_frame(104831);
	kfree_frame(str, 104831);
	str = kalloc_frame(104831);
	kfree_frame(str, 104831);
	str = kalloc_frame(104831);
	kfree_frame(str, 104831);
	str = kalloc_frame(104831);
	memcpy(str, "Hello world!\n", 15);
	kprintf(KERN_INFO, "%d: %s", str, str);
	shell_init();
}