kernel.cpp File Reference

#include "kernel.h"
#include <bootloaders/gitboot/GitBoot.hpp>
#include <drivers/ps2mouse/PS2Mouse.hpp>
#include <bootloaders/multiboot2/Multiboot.hpp>
#include <common/assert.h>
#include "drivers/graphics/graphics.hpp"
#include "drivers/graphics/vbe/vbe_graphics.hpp"
#include "drivers/graphics/text_mode/text_mode.hpp"
#include "syscall/syscall.hpp"
#include <stdint.h>
#include <stdarg.h>
#include "idt/idt.h"
#include "drivers/serial/serial.h"
#include "drivers/pic/pic.h"
#include "memory/heap/kheap.h"
#include "memory/memory.h"
#include "common/string.h"
#include "memory/paging/paging.h"
#include "drivers/disk/disk.h"
#include "fs/file.h"
#include "fs/fat16/fat16.h"
#include "gdt/gdt.h"
#include "task/tss.h"
#include "task/task.h"
#include "task/process.h"
#include "drivers/ps2keyboard/ps2keyboard.h"

Functions
int	atexit (void(*)())
void *	operator new (size_t size)
void *	operator new[] (size_t size)
void	operator delete (void *p)
void	operator delete[] (void *p)
void	print_interrupt_frame (struct interrupt_frame *frame)
void	timer_interrupt (int int_no, struct interrupt_frame *frame)
	Temporary PIC Timer interrupt handler.
void	kernel_exception (int int_no, struct interrupt_frame *frame)
void	kernel_page ()
void	kernel_main (uint32_t magic, void *info_ptr)
	Kernel C entry point.
void	kernel_panic (const char *fmt,...)
	(Temporary) Prints kernel_message and halts the kernel.
void	kernel_halt ()
void	kprintf (const char *fmt,...)
	Prints to kernel debug channels. Max length of processed message is 1024 characters.
void	__cxa_pure_virtual ()

Variables
struct tss	tss
struct gdt	gdt_real [TOTAL_GDT_SEGMENTS]
struct gdt_structured	gdt_structured [TOTAL_GDT_SEGMENTS]

Function Documentation

__cxa_pure_virtual()

void __cxa_pure_virtual

(

)

References kernel_panic().

atexit()

int atexit

(

void(*)()

)

kernel_exception()

void kernel_exception	(	int	int_no,
		struct interrupt_frame *	frame
	)

References COM1, interrupt_frame::cs, ebp, interrupt_frame::ebp, process::filename, Graphics::GREY, idt_InterruptLayoutString, ksprintf(), Graphics::LIGHT_RED, memset(), print_interrupt_frame(), Graphics::print_string(), process_current(), process_terminate(), ser_PrintString(), Graphics::set_text_color(), task_current(), task_return(), and task_switch().

kernel_halt()

void kernel_halt

(

)

kernel_main()

void kernel_main	(	uint32_t	magic,
		void *	info_ptr
	)

Kernel C entry point.

References process::argc, process::argv, assert, base_address, Graphics::clear_screen(), COM1, disk_search_and_init(), tss::esp0, fat16_init_filesystem(), fs_init(), fs_insert_filesystem(), gdt_load(), gdt_read(), gdt_real, gdt_structured_to_gdt(), Bootloader::get_heap_base_address(), Bootloader::get_heap_size(), Graphics::GREY, idt_Init(), idt_Load(), idt_SetDescriptor(), idt_SetHandler(), GitBoot::init(), Multiboot::init(), PS2Mouse::instance(), KERNEL_DATA_SELECTOR, kernel_exception(), kernel_panic(), kheap_init(), kprintf(), length_in_bytes, magic, memset(), PAGING_ACCESS_FROM_ALL, paging_enable(), PAGING_IS_PRESENT, PAGING_IS_WRITEABLE, paging_new_directory(), paging_switch(), pic_Remap(), pic_SetHz(), process_load_switch(), ps2keyboard_setup(), ser_Init(), Graphics::set_text_color(), tss::ss0, gdt_descriptor::start_address, syscall_init(), syscall_wrapper(), task_run_first_ever_task(), Bootloader::the(), VBEGraphics::the(), timer_interrupt(), TOTAL_GDT_SEGMENTS, and tss_load().

kernel_page()

void kernel_page

(

)

References kernel_registers(), and paging_switch().

kernel_panic()

void kernel_panic	(	const char *	fmt,
			...
	)

(Temporary) Prints kernel_message and halts the kernel.

Parameters

fmt	Reason of the panic
...	Arguments

References COM1, kernel_halt(), kvsprintf(), Graphics::LIGHT_RED, memset(), Graphics::print_string_color(), and ser_PrintString().

kprintf()

void kprintf	(	const char *	fmt,
			...
	)

Prints to kernel debug channels. Max length of processed message is 1024 characters.

Parameters

fmt	Message to format and print.
...	Arguments

References COM1, kvsprintf(), memset(), and ser_PrintString().

operator delete()

void operator delete

(

void *

p

)

References kfree().

operator delete[]()

void operator delete[]

(

void *

p

)

References kfree().

operator new()

void * operator new

(

size_t

size

)

References kzalloc(), and size.

operator new[]()

void * operator new[]

(

size_t

size

)

References kzalloc(), and size.

print_interrupt_frame()

void print_interrupt_frame

(

struct interrupt_frame *

frame

)

References COM1, interrupt_frame::cs, interrupt_frame::eax, interrupt_frame::ebp, interrupt_frame::ebx, interrupt_frame::ecx, interrupt_frame::edi, interrupt_frame::edx, interrupt_frame::error_code, interrupt_frame::esi, interrupt_frame::esp, interrupt_frame::flags, Graphics::GREY, interrupt_frame::ip, ksprintf(), memset(), Graphics::print_string_color(), ser_PrintString(), and interrupt_frame::ss.

timer_interrupt()

void timer_interrupt	(	int	int_no,
		struct interrupt_frame *	frame
	)

Temporary PIC Timer interrupt handler.

Parameters

frame

Interrupt frame

References pic_EOI(), task_current(), task_get_next(), task_return(), and task_switch().

Variable Documentation

gdt_real

struct gdt gdt_real[TOTAL_GDT_SEGMENTS]

gdt_structured

struct gdt_structured gdt_structured[TOTAL_GDT_SEGMENTS]

Initial value:

= {
    {.base = 0x00, .limit = 0x00, .type = 0x00},       
    {.base = 0x00, .limit = 0xFFFFFFFF, .type = 0x9A}, 
    {.base = 0x00, .limit = 0xFFFFFFFF, .type = 0x92}, 
    {.base = 0x00, .limit = 0xFFFFFFFF, .type = 0xF8}, 
    {.base = 0x00, .limit = 0xFFFFFFFF, .type = 0xF2}, 
    {.base = (uint32_t)&tss, .limit = sizeof(tss), .type = 0xE9}, 
}

tss

struct tss tss