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Make build work and created a stub kernel

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This commit is contained in:
Morten Delenk 2016-02-04 12:57:35 +01:00
parent 68206095fd
commit 0e73954ea4
7 changed files with 328 additions and 9 deletions
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9
kernel.settings
View file

@ -1,5 +1,6 @@
MODE = debug
#MODE = release # enables optimization
arch = x86
#MODE = debug
MODE = release # enables optimization
export PATH := $(HOME)/opt/bin:$(PATH)
#PREFIX =
@ -9,6 +10,6 @@ ifeq ($(MODE),debug)
CFLAGS += -g3 -DDEBUG
CPPFLAGS += -g3 -DDEBUG
else
# CFLAGS +=
# CPPFLAGS +=
CFLAGS += -O2
CPPFLAGS += -O2
endif

9
kernel/Makefile
View file

@ -1,16 +1,21 @@
include ../kernel.settings
SRCS = $(shell find hal/$(arch) -name '*.cpp' -o -name '*.[cS]')
KERNSRCS = $(shell find kernel -name '*.cpp' -o -name '*.c')
OBJS = $(addsuffix .o,$(basename $(SRCS)))
OBJS += $(addsuffix .o,$(basename $(KERNSRCS)))
LD = $(PREFIX)g++
LDFLAGS = -nostdlib -nodefaultlibs -nostdlib -fno-builtin
ifeq ($(arch),x86)
LDFLAGS += -m32 -T kernel.ld
endif
all: hal
all: hal kernel
$(LD) $(LDFLAGS) -o mtgos $(OBJS)
hal:
make -C hal
kernel:
make -C kernel
clean:
make -C hal clean
make -C kernel clean
.PHONY: all hal clean
.PHONY: all hal kernel clean

2
kernel/hal/x86/boot/boot.S
View file

@ -11,6 +11,8 @@
.global _start
_start:
mov $kernel_stack, %esp
push %ebx
push %eax
call init
_stop:
cli

274
kernel/hal/x86/c_include/multiboot.h Normal file
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@ -0,0 +1,274 @@
/* multiboot.h - Multiboot header file. */
/* Copyright (C) 1999,2003,2007,2008,2009,2010 Free Software Foundation, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL ANY
* DEVELOPER OR DISTRIBUTOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef MULTIBOOT_HEADER
#define MULTIBOOT_HEADER 1
/* How many bytes from the start of the file we search for the header. */
#define MULTIBOOT_SEARCH 8192
#define MULTIBOOT_HEADER_ALIGN 4
/* The magic field should contain this. */
#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
/* This should be in %eax. */
#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
/* Alignment of multiboot modules. */
#define MULTIBOOT_MOD_ALIGN 0x00001000
/* Alignment of the multiboot info structure. */
#define MULTIBOOT_INFO_ALIGN 0x00000004
/* Flags set in the 'flags' member of the multiboot header. */
/* Align all boot modules on i386 page (4KB) boundaries. */
#define MULTIBOOT_PAGE_ALIGN 0x00000001
/* Must pass memory information to OS. */
#define MULTIBOOT_MEMORY_INFO 0x00000002
/* Must pass video information to OS. */
#define MULTIBOOT_VIDEO_MODE 0x00000004
/* This flag indicates the use of the address fields in the header. */
#define MULTIBOOT_AOUT_KLUDGE 0x00010000
/* Flags to be set in the 'flags' member of the multiboot info structure. */
/* is there basic lower/upper memory information? */
#define MULTIBOOT_INFO_MEMORY 0x00000001
/* is there a boot device set? */
#define MULTIBOOT_INFO_BOOTDEV 0x00000002
/* is the command-line defined? */
#define MULTIBOOT_INFO_CMDLINE 0x00000004
/* are there modules to do something with? */
#define MULTIBOOT_INFO_MODS 0x00000008
/* These next two are mutually exclusive */
/* is there a symbol table loaded? */
#define MULTIBOOT_INFO_AOUT_SYMS 0x00000010
/* is there an ELF section header table? */
#define MULTIBOOT_INFO_ELF_SHDR 0X00000020
/* is there a full memory map? */
#define MULTIBOOT_INFO_MEM_MAP 0x00000040
/* Is there drive info? */
#define MULTIBOOT_INFO_DRIVE_INFO 0x00000080
/* Is there a config table? */
#define MULTIBOOT_INFO_CONFIG_TABLE 0x00000100
/* Is there a boot loader name? */
#define MULTIBOOT_INFO_BOOT_LOADER_NAME 0x00000200
/* Is there a APM table? */
#define MULTIBOOT_INFO_APM_TABLE 0x00000400
/* Is there video information? */
#define MULTIBOOT_INFO_VBE_INFO 0x00000800
#define MULTIBOOT_INFO_FRAMEBUFFER_INFO 0x00001000
#ifndef ASM_FILE
typedef unsigned char multiboot_uint8_t;
typedef unsigned short multiboot_uint16_t;
typedef unsigned int multiboot_uint32_t;
typedef unsigned long long multiboot_uint64_t;
struct multiboot_header
{
/* Must be MULTIBOOT_MAGIC - see above. */
multiboot_uint32_t magic;
/* Feature flags. */
multiboot_uint32_t flags;
/* The above fields plus this one must equal 0 mod 2^32. */
multiboot_uint32_t checksum;
/* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */
multiboot_uint32_t header_addr;
multiboot_uint32_t load_addr;
multiboot_uint32_t load_end_addr;
multiboot_uint32_t bss_end_addr;
multiboot_uint32_t entry_addr;
/* These are only valid if MULTIBOOT_VIDEO_MODE is set. */
multiboot_uint32_t mode_type;
multiboot_uint32_t width;
multiboot_uint32_t height;
multiboot_uint32_t depth;
};
/* The symbol table for a.out. */
struct multiboot_aout_symbol_table
{
multiboot_uint32_t tabsize;
multiboot_uint32_t strsize;
multiboot_uint32_t addr;
multiboot_uint32_t reserved;
};
typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t;
/* The section header table for ELF. */
struct multiboot_elf_section_header_table
{
multiboot_uint32_t num;
multiboot_uint32_t size;
multiboot_uint32_t addr;
multiboot_uint32_t shndx;
};
typedef struct multiboot_elf_section_header_table multiboot_elf_section_header_table_t;
struct multiboot_info
{
/* Multiboot info version number */
multiboot_uint32_t flags;
/* Available memory from BIOS */
multiboot_uint32_t mem_lower;
multiboot_uint32_t mem_upper;
/* "root" partition */
multiboot_uint32_t boot_device;
/* Kernel command line */
multiboot_uint32_t cmdline;
/* Boot-Module list */
multiboot_uint32_t mods_count;
multiboot_uint32_t mods_addr;
union
{
multiboot_aout_symbol_table_t aout_sym;
multiboot_elf_section_header_table_t elf_sec;
} u;
/* Memory Mapping buffer */
multiboot_uint32_t mmap_length;
multiboot_uint32_t mmap_addr;
/* Drive Info buffer */
multiboot_uint32_t drives_length;
multiboot_uint32_t drives_addr;
/* ROM configuration table */
multiboot_uint32_t config_table;
/* Boot Loader Name */
multiboot_uint32_t boot_loader_name;
/* APM table */
multiboot_uint32_t apm_table;
/* Video */
multiboot_uint32_t vbe_control_info;
multiboot_uint32_t vbe_mode_info;
multiboot_uint16_t vbe_mode;
multiboot_uint16_t vbe_interface_seg;
multiboot_uint16_t vbe_interface_off;
multiboot_uint16_t vbe_interface_len;
multiboot_uint64_t framebuffer_addr;
multiboot_uint32_t framebuffer_pitch;
multiboot_uint32_t framebuffer_width;
multiboot_uint32_t framebuffer_height;
multiboot_uint8_t framebuffer_bpp;
#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0
#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1
#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2
multiboot_uint8_t framebuffer_type;
union
{
struct
{
multiboot_uint32_t framebuffer_palette_addr;
multiboot_uint16_t framebuffer_palette_num_colors;
};
struct
{
multiboot_uint8_t framebuffer_red_field_position;
multiboot_uint8_t framebuffer_red_mask_size;
multiboot_uint8_t framebuffer_green_field_position;
multiboot_uint8_t framebuffer_green_mask_size;
multiboot_uint8_t framebuffer_blue_field_position;
multiboot_uint8_t framebuffer_blue_mask_size;
};
};
};
typedef struct multiboot_info multiboot_info_t;
struct multiboot_color
{
multiboot_uint8_t red;
multiboot_uint8_t green;
multiboot_uint8_t blue;
};
struct multiboot_mmap_entry
{
multiboot_uint32_t size;
multiboot_uint64_t addr;
multiboot_uint64_t len;
#define MULTIBOOT_MEMORY_AVAILABLE 1
#define MULTIBOOT_MEMORY_RESERVED 2
#define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3
#define MULTIBOOT_MEMORY_NVS 4
#define MULTIBOOT_MEMORY_BADRAM 5
multiboot_uint32_t type;
} __attribute__((packed));
typedef struct multiboot_mmap_entry multiboot_memory_map_t;
struct multiboot_mod_list
{
/* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */
multiboot_uint32_t mod_start;
multiboot_uint32_t mod_end;
/* Module command line */
multiboot_uint32_t cmdline;
/* padding to take it to 16 bytes (must be zero) */
multiboot_uint32_t pad;
};
typedef struct multiboot_mod_list multiboot_module_t;
/* APM BIOS info. */
struct multiboot_apm_info
{
multiboot_uint16_t version;
multiboot_uint16_t cseg;
multiboot_uint32_t offset;
multiboot_uint16_t cseg_16;
multiboot_uint16_t dseg;
multiboot_uint16_t flags;
multiboot_uint16_t cseg_len;
multiboot_uint16_t cseg_16_len;
multiboot_uint16_t dseg_len;
};
#endif /* ! ASM_FILE */
#endif /* ! MULTIBOOT_HEADER */

11
kernel/hal/x86/init/init.cpp
View file

@ -6,7 +6,9 @@
#include <idt.hpp>
#include <keyboard.hpp>
#include <Multitasking.h>
#include <multiboot.h>
extern "C" void intr_stub_0(void);
void main();
namespace MTGosHAL {
Serial debug;
Screen out;
@ -15,9 +17,11 @@ namespace MTGosHAL {
IDT idt;
GDT gdt;
Multitasking tasks;
void main() {
void main(int eax, struct multiboot_info* ebx) {
out << BG_color::BLACK << FG_color::WHITE << "Loading MTGos...\n";
err << BG_color::BLACK << FG_color::RED;
if(eax!=0x2BADB002)
err << "System wasn't loaded by a Multiboot-conformant launcher!\n";
debug << "Hello debugger! This is MTGos v00r01\nThese logs are probably very long, so please redirect the output to a file.\n";
gdt.setEntry(0, 0, 0, 0);
gdt.setEntry(1, 0, 0xfffff, GDT_FLAG_SEGMENT | GDT_FLAG_32_BIT | GDT_FLAG_CODESEG | GDT_FLAG_4K_GRAN | GDT_FLAG_PRESENT);
@ -35,16 +39,17 @@ namespace MTGosHAL {
idt.setEntry(8, (void *)((uint32_t)&intr_stub_0+128), SEG_DBL_FAULT, IDT_TASK_GATE | IDT_SEG_32_BIT | IDT_RING_0 | IDT_USED);
idt.apply();
sti();
::main();
for(;;);
}
}
typedef void (*constructor)();
extern "C" constructor start_ctors;
extern "C" constructor end_ctors;
extern "C" void init() {
extern "C" void init(int eax, struct multiboot_info* ebx) {
for(constructor* i = &start_ctors; i != &end_ctors; ++i)
(*i)();
MTGosHAL::main();
MTGosHAL::main(eax, ebx);
}
extern "C" void __cxa_pure_virtual() {
MTGosHAL::debug << "A pure virtual function just got called.\n";

23
kernel/kernel/Makefile Normal file
View file

@ -0,0 +1,23 @@
include ../../kernel.settings
SRCS = $(shell find -name '*.cpp' -o -name '*.c')
OBJS = $(addsuffix .o,$(basename $(SRCS)))
CPP = $(PREFIX)g++
CC = $(PREFIX)gcc
ASFLAGS = -m32
CFLAGS = -m32 -Wall -fno-stack-protector -nostdinc -Ic_include/ -I../hal/dummy/c_include -ffreestanding -march=native -std=c11 -fno-builtin -Werror -nostdlib -g
CPPFLAGS = -m32 -Wall -fno-stack-protector -nostdinc -std=c++14 -Iinclude/ -Ic_include/ -I../hal/dummy/include -I../hal/dummy/c_include -fno-rtti -fno-exceptions -ffreestanding -march=native -fno-builtin -Werror -nostdlib -fno-use-cxa-atexit -Wextra -Wno-unused -g
all: $(OBJS)
%.o: %.cpp
$(CPP) $(CPPFLAGS) -c -o $@ $^
%.o: %.c
$(CC) $(CFLAGS) -c -o $@ $^
%.o: $.S
$(CC) $(CFLAGS) -c -o $@ $^
clean:
rm -rf $(OBJS)
.PHONY: clean all

9
kernel/kernel/init.cpp Normal file
View file

@ -0,0 +1,9 @@
#include <base.hpp>
#include <output.hpp>
#include <serial.hpp>
#include <textDISP.hpp>
#include <keyboard.hpp>
#include <Multitasking.h>
void main() {
MTGosHAL::out << "Initializing Kernel!\n";
}