PROJECT RESTRUCTURING

Move the entire kernel into its own directory. Create new directories
for system commands, libraries and other required essentials for a
complete Unix-like operating system.

Signed-off-by: Danny Holman <dholman@gymli.org>

10 files changed, 0 insertions, 511 deletions

diff --git a/arch/i386/include/kernel/asm.h b/arch/i386/include/kernel/asm.h
deleted file mode 100644
index cc570c5..0000000
--- a/arch/i386/include/kernel/asm.h
+++ /dev/null
@@ -1,158 +0,0 @@
-#ifndef I386_ASM_H
-#define I386_ASM_H
-
-#include <kernel/gdt.h>
-#include <stdint.h>
-
-#define PCI_CONFIG_ADDR 0xCF8
-#define PCI_CONFIG_DATA 0xCFC
-
-#define COM_PORT        0x3F8
-
-#define MAX_ISR         256
-
-struct regs {
-        uint32_t eax;
-        uint32_t ebx;
-        uint32_t ecx;
-        uint32_t edx;
-        uint32_t esi;
-        uint32_t edi;
-        uint32_t ebp;
-        uint32_t esp;
-
-        uint32_t cr0;
-        uint32_t cr2;
-        uint32_t cr3;
-        uint32_t cr4;
-};
-
-struct isr_frame {
-        uint32_t cr4;
-        uint32_t cr3;
-        uint32_t cr2;
-        uint32_t cr0;
-
-        uint32_t edi;
-        uint32_t esi;
-        uint32_t edx;
-        uint32_t ecx;
-        uint32_t ebx;
-        uint32_t eax;
-
-        uint32_t isr_vector;
-        uint32_t isr_err;
-        uint32_t eip;
-        uint32_t cs;
-        uint32_t eflags;
-} __attribute__((packed));
-
-void isr_stub_0(void);
-void isr_stub_1(void);
-void isr_stub_2(void);
-void isr_stub_3(void);
-void isr_stub_4(void);
-void isr_stub_5(void);
-void isr_stub_6(void);
-void isr_stub_7(void);
-void isr_stub_8(void);
-void isr_stub_9(void);
-void isr_stub_10(void);
-void isr_stub_11(void);
-void isr_stub_12(void);
-void isr_stub_13(void);
-void isr_stub_14(void);
-void isr_stub_15(void);
-void isr_stub_16(void);
-void isr_stub_17(void);
-void isr_stub_18(void);
-void isr_stub_19(void);
-void isr_stub_20(void);
-void isr_stub_21(void);
-void isr_stub_22(void);
-void isr_stub_23(void);
-void isr_stub_24(void);
-void isr_stub_25(void);
-void isr_stub_26(void);
-void isr_stub_27(void);
-void isr_stub_28(void);
-void isr_stub_29(void);
-void isr_stub_30(void);
-void isr_stub_31(void);
-
-void irq_stub_0(void);
-void irq_stub_1(void);
-void irq_stub_2(void);
-void irq_stub_3(void);
-void irq_stub_4(void);
-void irq_stub_5(void);
-void irq_stub_6(void);
-void irq_stub_7(void);
-void irq_stub_8(void);
-void irq_stub_9(void);
-void irq_stub_10(void);
-void irq_stub_11(void);
-void irq_stub_12(void);
-void irq_stub_13(void);
-void irq_stub_14(void);
-void irq_stub_15(void);
-
-void isr_stub_128(void);
-
-void aquire_lock(int *lock);
-void release_lock(int *lock);
-
-void enable_paging(uint32_t new_cr3);
-void flush_gdt(void);
-
-static inline void outb(uint16_t port, uint8_t value) {
-        __asm__ volatile("outb %0, %1" : : "a"(value), "Nd"(port));
-}
-
-static inline void outw(uint16_t port, uint16_t value) {
-        __asm__ volatile("outw %0, %1" : : "a"(value), "Nd"(port));
-}
-
-static inline void outl(uint16_t port, uint32_t value) {
-        __asm__ volatile("outl %0, %1" : : "a"(value), "Nd"(port));
-}
-
-static inline uint8_t inb(uint16_t port) {
-        uint8_t ret;
-        __asm__ volatile("inb %1, %0" : "=a"(ret) : "Nd"(port));
-        return ret;
-}
-
-static inline uint16_t inw(uint16_t port) {
-        uint16_t ret;
-        __asm__ volatile("inw %1, %0" : "=a"(ret) : "Nd"(port));
-        return ret;
-}
-
-static inline uint32_t inl(uint16_t port) {
-        uint32_t ret;
-        __asm__ volatile("inl %1, %0" : "=a"(ret) : "Nd"(port));
-        return ret;
-}
-
-static inline void enable_ints(void) {
-        __asm__ volatile("sti");
-}
-
-static inline void disable_ints(void) {
-        __asm__ volatile("cli");
-}
-
-static inline void flush_tss(void) {
-        __asm__ volatile("movw $0x28, %ax; ltr %ax");
-}
-
-static inline void flush_tlb(void) {
-        __asm__ volatile("movl %cr3, %eax; movl %eax, %cr3");
-}
-
-static inline void invlpg(void *addr) {
-        __asm__ volatile("invlpg (%0)" : : "b"(addr) : "memory");
-}
-
-#endif
diff --git a/arch/i386/include/kernel/gdt.h b/arch/i386/include/kernel/gdt.h
deleted file mode 100644
index ec02719..0000000
--- a/arch/i386/include/kernel/gdt.h
+++ /dev/null
@@ -1,53 +0,0 @@
-#ifndef I386_GDT_H
-#define I386_GDT_H
-
-#include <stdint.h>
-
-struct gdt_entry {
-        uint16_t limit_low;
-        uint16_t base_low;
-        uint8_t base_middle;
-        uint8_t access;
-        uint8_t gran;
-        uint8_t base_high;
-} __attribute__((packed));
-
-struct gdt_ptr {
-        uint16_t limit;
-        uint32_t base;
-} __attribute__((packed));
-
-struct tss_entry {
-        uint32_t link;
-        uint32_t esp0;
-        uint32_t ss0;
-        uint32_t esp1;
-        uint32_t ss2;
-        uint32_t cr3;
-        uint32_t eip;
-        uint32_t eflags;
-        uint32_t eax;
-        uint32_t ecx;
-        uint32_t edx;
-        uint32_t ebx;
-        uint32_t esp;
-        uint32_t ebp;
-        uint32_t esi;
-        uint32_t edi;
-        uint32_t es;
-        uint32_t cs;
-        uint32_t ss;
-        uint32_t ds;
-        uint32_t fs;
-        uint32_t gs;
-        uint32_t ldtr;
-        uint16_t trap;
-        uint16_t iomap_base;
-} __attribute__((packed));
-
-void gdt_set_gate(int num, uint32_t base, uint32_t limit, uint8_t access, uint8_t gran);
-void write_tss(int num, uint32_t ss0, uint32_t esp0);
-void set_kernel_esp(uint32_t esp);
-void gdt_install(void);
-
-#endif
diff --git a/arch/i386/include/kernel/idt.h b/arch/i386/include/kernel/idt.h
deleted file mode 100644
index 29ec39f..0000000
--- a/arch/i386/include/kernel/idt.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#ifndef I386_IDT_H
-#define I386_IDT_H
-
-#include <stdint.h>
-
-#define SEGMENT_PRESENT         0x80
-#define SEGMENT_RING0           0x00
-#define SEGMENT_RING3           0x60
-#define SEGMENT_STORAGE         0x00
-#define SEGMENT_INTERRUPT       0x0E
-#define IDT_EXCEPTION           (SEGMENT_PRESENT | SEGMENT_INTERRUPT)
-#define IDT_INTERRUPT           (SEGMENT_PRESENT | SEGMENT_INTERRUPT)
-
-#define IDT_MAX_DESCRIPTORS     256
-
-struct idt_entry {
-        uint16_t        isr_low;
-        uint16_t        kernel_cs;
-        uint8_t         reserved;
-        uint8_t         flags;
-        uint16_t        isr_high;
-} __attribute__((packed));
-
-struct idt_ptr {
-        uint16_t        limit;
-        uint32_t        base;
-} __attribute__((packed));
-
-void idt_install(void);
-
-#endif
diff --git a/arch/i386/include/kernel/multiboot.h b/arch/i386/include/kernel/multiboot.h
deleted file mode 100644
index abbd8a9..0000000
--- a/arch/i386/include/kernel/multiboot.h
+++ /dev/null
@@ -1,102 +0,0 @@
-#ifndef I386_MULTIBOOT_H
-#define I386_MULTIBOOT_H
-
-#include <stdint.h>
-
-#define MBOOT_HEADER_MAGIC      0x1BADB002
-#define MBOOT_LOADER_MAGIC      0x2BADB002
-
-// Multiboot flags
-#define MBOOT_INFO_MMAP         0x00000001
-#define MBOOT_INFO_BOOTDEV      0x00000002
-#define MBOOT_INFO_CMDLINE      0x00000004
-#define MBOOT_INFO_MODS         0x00000008
-#define MBOOT_INFO_AOUT_SYMS    0x00000010
-#define MBOOT_INFO_ELF_HEADER   0x00000020
-#define MBOOT_INFO_MEM_MAP      0x00000040
-#define MBOOT_INFO_DRIVE_INFO   0x00000080
-#define MBOOT_INFO_CONFIG_TBL   0x00000100
-#define MBOOT_INFO_BL_NAME      0x00000200
-#define MBOOT_INFO_APM_TBL      0x00000400
-#define MBOOT_INFO_VBE          0x00000800
-#define MBOOT_INFO_FRAMEBUFFER  0x00001000
-
-// Memory types
-#define MBOOT_MEM_AVAILABLE     1
-#define MBOOT_MEM_RESERVED      2
-#define MBOOT_MEM_ACPI_REC      3
-#define MBOOT_MEM_NVS           4
-#define MBOOT_MEM_BADRAM        5
-
-struct aout_symbol_table {
-        uint32_t tabsize;
-        uint32_t strsize;
-        uint32_t addr;
-        uint32_t reserved;
-};
-
-struct elf_section_header {
-        uint32_t num;
-        uint32_t size;
-        uint32_t addr;
-        uint32_t shndx;
-};
-
-struct mboot_header {
-        uint32_t magic;
-        uint32_t flags;
-        uint32_t checksum;
-        uint32_t header_addr;
-        uint32_t load_addr;
-        uint32_t load_end_addr;
-        uint32_t bss_end_addr;
-        uint32_t entry_addr;
-        uint32_t mode_type;
-        uint32_t width;
-        uint32_t height;
-        uint32_t depth;
-};
-
-struct mboot_info {
-        uint32_t flags;
-        uint32_t mem_lower;
-        uint32_t mem_upper;
-        uint32_t boot_device;
-        uint32_t cmdline;
-        uint32_t mods_count;
-        uint32_t mods_addr;
-        union {
-                struct aout_symbol_table aout_sym;
-                struct elf_section_header elf_sec;
-        } u;
-        uint32_t mmap_length;
-        uint32_t mmap_addr;
-        uint32_t drives_length;
-        uint32_t drives_addr;
-        uint32_t config_table;
-        uint32_t boot_loader_name;
-        uint32_t apm_table;
-        uint32_t vbe_control_info;
-        uint32_t vbe_mode_info;
-        uint16_t vbe_mode;
-        uint16_t vbe_interface_seg;
-        uint16_t vbe_interface_off;
-        uint16_t vbe_interface_len;
-        uint64_t framebuffer_addr;
-        uint32_t framebuffer_pitch;
-        uint32_t framebuffer_width;
-        uint32_t framebuffer_height;
-        uint8_t framebuffer_bpp;
-        uint8_t framebuffer_type;
-};
-
-struct mboot_mmap_entry {
-        uint32_t size;
-        uint32_t addr_low;
-        uint32_t addr_high;
-        uint32_t len_low;
-        uint32_t len_high;
-        uint32_t type;
-} __attribute__((packed));
-
-#endif
diff --git a/arch/i386/include/kernel/paging.h b/arch/i386/include/kernel/paging.h
deleted file mode 100644
index d8bb8f3..0000000
--- a/arch/i386/include/kernel/paging.h
+++ /dev/null
@@ -1,46 +0,0 @@
-#ifndef I386_PAGING_H
-#define I386_PAGING_H
-
-#include <kernel/asm.h>
-#include <kernel/multiboot.h>
-#include <stdint.h>
-
-#define PAGE_SIZE       4096
-
-#define PD_PRES         0x0001
-#define PD_RW           0x0002
-#define PD_USR          0x0004
-#define PD_PWT          0x0008
-#define PD_PCD          0x0010
-#define PD_ACC          0x0020
-#define PD_DIRTY        0x0040
-#define PD_PS           0x0080
-#define PD_GLOB         0x0100
-#define PD_PAT          0x1000
-
-#define ERR_PRESENT     0x1
-#define ERR_RW          0x2
-#define ERR_USER        0x4
-#define ERR_RESERVED    0x8
-#define ERR_INST        0x10
-
-#define PGROUNDUP(size) (((size)+PAGE_SIZE-1) & ~(PAGE_SIZE-1))
-#define PGROUNDDN(size) (((size)) & ~(PAGE_SIZE-1))
-
-#define GET_PADDR(x)    (((uint32_t)(x)) - 0xC0000000)
-#define GET_VADDR(x)    (((uint32_t)(x)) + 0xC0000000)
-
-#define GET_PDX(x)      ((uintptr_t)(x) >> 22)
-#define GET_PTX(x)      (((uintptr_t)(x) >> 12) & 0x03FF)
-
-uintptr_t get_physaddr(void *vaddr);
-
-void paging_init(void);
-
-uintptr_t init_page_directory(void);
-void map_page(uintptr_t paddr, uintptr_t vaddr, uint32_t flags);
-void unmap_page(uintptr_t vaddr);
-
-void page_fault_handler(struct isr_frame *frame);
-
-#endif
diff --git a/arch/i386/include/kernel/pic.h b/arch/i386/include/kernel/pic.h
deleted file mode 100644
index 187d553..0000000
--- a/arch/i386/include/kernel/pic.h
+++ /dev/null
@@ -1,44 +0,0 @@
-#ifndef I386_PIC_H
-#define I386_PIC_H
-
-#include <kernel/asm.h>
-#include <stdint.h>
-
-#define PIC1            0x20
-#define PIC2            0x28
-#define PIC1_COMMAND    PIC1
-#define PIC1_DATA       (PIC1+1)
-#define PIC2_COMMAND    PIC2
-#define PIC2_DATA       (PIC2+1)
-
-#define ICW1_ICW4       0x01
-#define ICW1_SINGLE     0x02
-#define ICW1_INTERVAL4  0x04
-#define ICW1_LEVEL      0x08
-#define ICW1_INIT       0x10
-
-#define ICW4_8086       0x01
-#define ICW4_AUTO       0x02
-#define ICW4_BUF_SLAVE  0x08
-#define ICW4_BUF_MASTER 0x0C
-#define ICW4_SFNM       0x10
-
-#define PIC_READ_IRR    0x0A
-#define PIC_READ_ISR    0x0B
-
-static inline void io_wait(void) {
-        outb(0x80, 0);
-}
-
-void pic_eoi(uint8_t irq);
-void pic_remap(void);
-uint16_t pic_get_irr(void);
-uint16_t pic_get_isr(void);
-
-void register_irq_handler(uint8_t irq, void (*handler)(struct isr_frame *frame));
-void irq_dispatch(struct isr_frame *frame);
-
-void irq_set_mask(uint8_t irq);
-void irq_clear_mask(uint8_t irq);
-
-#endif
diff --git a/arch/i386/include/kernel/pmem.h b/arch/i386/include/kernel/pmem.h
deleted file mode 100644
index e6e4f57..0000000
--- a/arch/i386/include/kernel/pmem.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef I386_PMEM_H
-#define I386_PMEM_H
-
-#include <kernel/multiboot.h>
-#include <stdint.h>
-#include <stddef.h>
-
-struct pfa_page {
-        struct pfa_page *next;
-};
-
-void pfa_init(struct mboot_info *header);
-
-void pfa_free_dma(uintptr_t paddr, size_t num_pages);
-void pfa_free(uintptr_t paddr, size_t num_pages);
-
-#endif
diff --git a/arch/i386/include/kernel/syscall.h b/arch/i386/include/kernel/syscall.h
deleted file mode 100644
index a657527..0000000
--- a/arch/i386/include/kernel/syscall.h
+++ /dev/null
@@ -1,34 +0,0 @@
-#ifndef I386_SYSCALL_H
-#define I386_SYSCALL_H
-
-#include <kernel/asm.h>
-#include <stdint.h>
-#include <stddef.h>
-
-// Unix standard calls
-#define SYS_FORK        1
-#define SYS_EXIT        2
-#define SYS_WAIT        3
-#define SYS_PIPE        4
-#define SYS_READ        5
-#define SYS_WRITE       6
-#define SYS_KILL        7
-#define SYS_FSTAT       8
-#define SYS_CHDIR       9
-#define SYS_DUP         10
-#define SYS_GETPID      11
-#define SYS_SLEEP       12
-#define SYS_OPEN        13
-#define SYS_MKNOD       14
-#define SYS_UNLINK      15
-#define SYS_LINK        16
-#define SYS_MKDIR       17
-#define SYS_CLOSE       18
-#define SYS_EXEC        19
-
-#define SYS_HALT        87
-#define SYS_REBOOT      88
-
-void handle_syscall(struct isr_frame *frame);
-
-#endif
diff --git a/arch/i386/include/kernel/timer.h b/arch/i386/include/kernel/timer.h
deleted file mode 100644
index c0b3a73..0000000
--- a/arch/i386/include/kernel/timer.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef I386_TIMER_H
-#define I386_TIMER_H
-
-#include <kernel/asm.h>
-
-void timer_handler(struct isr_frame *frame);
-void timer_init(void);
-
-#endif
diff --git a/arch/i386/include/kernel/vmem.h b/arch/i386/include/kernel/vmem.h
deleted file mode 100644
index 94aa32d..0000000
--- a/arch/i386/include/kernel/vmem.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef I386_VMEM_H
-#define I386_VMEM_H
-
-extern uintptr_t _kernel_start;
-extern uintptr_t _kernel_end;
-
-#define KSTART          ((uintptr_t)&_kernel_start)
-#define KEND            ((uintptr_t)&_kernel_end - 0xC0000000)
-
-#define KHEAP_START     (GET_VADDR(KEND) + 0x2000)
-#define KHEAP_STOP      0xFF7FF000
-
-#define PAGE_DIR_MAP    0xFFFFF000
-#define PAGE_TAB_MAP    0xFFC00000
-#define PAGE_TMP_MAP    0xFFBFF000
-
-#endif