int kernel_main() {
init_kernel_stack(KERN_HEAP_OFFSET);
init_device_drivers();
device_open(TTY, 0);
k_printf("entered into main kernel..!\n");
k_printf("and initialized device drivers.\n");
init_gdt();
k_printf("initialized protected mode.\n");
check_physical_mem_size();
k_printf("physical memory size : %d megabytes.\n", physical_mem_size>>20);
init_paging();
k_printf("initialized paging.\n");
init_vfs();
k_printf("initialized file system (fat16).\n");
init_idt();
k_printf("initialized interrupt.\n");
init_tss();
struct fat16_file_kt f;
f = fs_open_fat16("/apps/snake.bin");
create_task(f.buffer, f.information.file_size);
dump_task_queue();
current_task = pop_task_queue();
create_task(init1, 256);
create_task(init2, 256);
create_task(init3, 256);
create_task(init4, 256);
create_task(init5, 256);
dump_task_queue();
/*
do {
struct task_struct_kt *cur = task_head;
do {
k_printf("#%d - stack %x, start %x\n", cur->tid, cur->sp_page, cur->start_entry);
cur = cur->next;
} while (cur != task_head);
} while(0);
*/
//for(;;); // user page가 제대로 동작할때까지 막아둠.
cli();
SCHEDULE();
for(;;);
device_close(TTY, 0);
return 0;
}
void kmain(uint32_t magic, multiboot_info_t *mboot, uintptr_t ebp) {
monitor_clear();
printf("Booting Dionysus!\n");
ASSERT(magic == MULTIBOOT_BOOTLOADER_MAGIC && "Not booted with multiboot.");
ASSERT(mboot->flags & MULTIBOOT_INFO_MEMORY && "No memory info.");
ASSERT(mboot->flags & MULTIBOOT_INFO_MEM_MAP && "No memory map.");
printf("Initializing GDT\n");
init_gdt();
printf("Initializing IDT\n");
init_idt();
// Check for modules
if (mboot->flags & MULTIBOOT_INFO_MODS && mboot->mods_count) {
multiboot_module_t *mods = (multiboot_module_t *)mboot->mods_addr;
placement_address = mods[mboot->mods_count - 1].mod_end + KERNEL_BASE;
}
printf("Setting up paging\n");
init_paging(mboot->mem_lower + mboot->mem_upper, mboot->mmap_addr,
mboot->mmap_length);
printf("Initializing timers\n");
init_time();
init_timer();
printf("Starting task scheduling\n");
init_tasking(ebp);
init_syscalls();
printf("Initializing vfs\n");
init_vfs();
printf("Initializing driver subsystem\n");
init_blockdev();
init_chardev();
init_term();
printf("Enumerating PCI bus(ses)\n");
init_pci();
dump_pci();
init_devfs();
ASSERT(mount(NULL, "/dev", "devfs", 0) == 0);
init_ide();
halt();
}
/* This is the C kernel entry point */
void kmain(struct multiboot *mboot_header, addr_t initial_stack)
{
/* Store passed values, and initiate some early things
* We want serial log output as early as possible */
kernel_state_flags=0;
mtboot = mboot_header;
i_stack = initial_stack;
parse_kernel_elf(mboot_header, &kernel_elf);
#if CONFIG_MODULES
init_kernel_symbols();
#endif
init_serial();
console_init_stage1();
load_tables();
puts("~ SeaOS Version ");
char ver[32];
get_kernel_version(ver);
puts(ver);
puts(" Booting Up ~\n\r");
#if CONFIG_MODULES
init_module_system();
#endif
init_syscalls();
load_initrd(mtboot);
install_timer(1000);
pm_init(placement, mtboot);
init_main_cpu_1();
/* Now get the management stuff going */
printk(1, "[kernel]: Starting system management\n");
init_memory(mtboot);
init_main_cpu_2();
console_init_stage2();
parse_kernel_cmd((char *)(addr_t)mtboot->cmdline);
init_multitasking();
init_cache();
init_dm();
init_vfs();
/* Load the rest... */
process_initrd();
init_kern_task();
get_timed(&kernel_start_time);
printk(KERN_MILE, "[kernel]: Kernel is setup (%2.2d:%2.2d:%2.2d, %s, kv=%d, ts=%d bytes: ok)\n",
kernel_start_time.tm_hour, kernel_start_time.tm_min,
kernel_start_time.tm_sec, kernel_name, KVERSION, sizeof(task_t));
assert(!set_int(1));
if(!fork())
init();
sys_setsid();
enter_system(255);
kernel_idle_task();
}