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Merge kaleid to boot

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This commit is contained in:
Adrien Bourmault 2018-12-27 09:11:01 +01:00
commit 13d4e41983
37 changed files with 857 additions and 287 deletions
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4
README.md
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@ -2,7 +2,11 @@
Fully open-source operating system from scratch (WIP), released under the GNU GPL version 3.0
<<<<<<< HEAD
Branch boot : Development focused on the bootloader of OS/K
=======
Branch kaleid : Development focused on the Kaleid Kernel.
>>>>>>> kaleid
For changelog, see src/ChangeLog.

2
src/ChangeLog
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@ -10,7 +10,7 @@
//----------------------------------------------------------------------------//
2018/10/?? - Started talking about making our own OS
2018/11/?? - Name decided & creation of gnu-os-k.eu
2018/11/?? - Name decided & creation of os-k.eu
2018/12/06 - Actually started project, began MBR, decided directories organization, created this file and others
2018/12/08 - MBR actually supports Long Mode Compatibility Verification
- Added A20 line Enabling to MBR

92
src/Makefile
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@ -7,13 +7,16 @@
# Desc: Project Makefile #
#----------------------------------------------------------------------------#
CC_NAME="/opt/cross-cc/bin/x86_64-elf-gcc"
CWARNS=-Wall -Wextra -Werror
CCNAME="/opt/cross-cc/bin/x86_64-elf-gcc"
CC2NAME=gcc # compiler for testing
CLDSCR=-T kernel.ld
CWARNS= -pedantic -Wall -Wextra -Werror
CFLAGS=-nostdlib -ffreestanding -mcmodel=large -mno-red-zone -mno-mmx -mno-sse -mno-sse2
CINCLUDES=-I./kaleid
CDEFINES=
CC=$(CC_NAME) $(CWARNS) $(CFLAGS) $(CDEFINES) $(CINCLUDES)
CC=$(CCNAME) $(CWARNS) $(CFLAGS) $(CDEFINES) $(CINCLUDES)
KCC=$(CC) -D_KALEID_KERNEL
ASM=nasm
ASMFLAGS=
@ -26,6 +29,7 @@ BOOTDIR=boot
COMMDIR=kaleid/common
KERNDIR=kaleid/kernel
SYSTDIR=kaleid/system
LINXDIR=kaleid/linux
all: bootloader
@ -52,76 +56,40 @@ testing: bootloader pseudo_kern
# COMMON MAKEFILE
COBJDIR=$(OBJDIR)/$(COMMDIR)
LOBJDIR=$(OBJDIR)/$(LINXDIR)
COMM_DEPS=$(COMMDIR)/common.h $(COMMDIR)/assert.h $(COMMDIR)/atomic.h $(COMMDIR)/config.h \
COMMDEPS=$(COMMDIR)/common.h $(COMMDIR)/assert.h $(COMMDIR)/atomic.h $(COMMDIR)/config.h \
$(COMMDIR)/status.h
COBJECTS=$(COBJDIR)/lib/string.o
COMMOBJS=$(COBJDIR)/lib/string.o $(COBJDIR)/lib/status.o
common: common.lib.string.c $(COMM_DEPS)
common: $(COMMDEPS) $(COMMDIR)/lib/string.c $(COMMDIR)/lib/status.c
$(KCC) -c $(COMMDIR)/lib/string.c -o $(COBJDIR)/lib/string.o
$(KCC) -c $(COMMDIR)/lib/status.c -o $(COBJDIR)/lib/status.o
common.lib.string.c: $(COMMDIR)/lib/string.c $(COMM_DEPS)
$(CC) -c $(COMMDIR)/lib/string.c -o $(OBJDIR)/$(COMMDIR)/lib/string.o
CCC=$(CC2NAME) $(CWARNS) $(CDEFINES) $(CINCLUDES)
common-test:
$(CCC) -c $(COMMDIR)/lib/string.c -o $(COBJDIR)/lib/string.o
$(CCC) -c $(COMMDIR)/lib/status.c -o $(COBJDIR)/lib/status.o
$(CCC) -c $(LINXDIR)/test-common.c -o $(LOBJDIR)/test-common.o
$(CCC) $(COMMOBJS) $(LOBJDIR)/test-common.o -o $(BINDIR)/kaleid-common.elf
#----------------------------------------------------------------------------#
# KERNEL MAKEFILE
KOBJDIR=$(OBJDIR)/$(KERNDIR)
KERN_DEPS=$(COMM_DEPS) $(KERNDIR)/init.h $(KERNDIR)/io/terminal.h $(KERNDIR)/io/ports.h
kernel: common kernel.io.terminal.c kernel.init.c kernel.io.ports.c
$(CC) -o $(BINDIR)/kaleid-kernel.elf \
$(COBJECTS) $(KOBJDIR)/init.o \
$(KOBJDIR)/io/terminal.o $(KOBJDIR)/io/ports.o
kernel.init.c: $(KERNDIR)/init.c $(KERN_DEPS)
$(CC) -c $(KERNDIR)/init.c -o $(KOBJDIR)/init.o
kernel.io.ports.c: $(KERNDIR)/io/ports.c $(KERN_DEPS)
$(CC) -c $(KERNDIR)/io/ports.c -o $(KOBJDIR)/io/ports.o
kernel.io.terminal.c: $(KERNDIR)/io/terminal.c $(KERN_DEPS)
$(CC) -c $(KERNDIR)/io/terminal.c -o $(KOBJDIR)/io/terminal.o
KERNDEPS=common $(KERNDIR)/init.h $(KERNDIR)/io/terminal.h $(KERNDIR)/io/ports.h $(KERNDIR)/ke/panic.h
KERNSRCS=$(KERNDIR)/init.c $(KERNDIR)/ke/panic.c $(KERNDIR)/io/ports.c $(KERNDIR)/io/terminal.c
KERNOBJS=$(KOBJDIR)/init.o $(KOBJDIR)/ke/panic.o $(KOBJDIR)/io/ports.o $(KOBJDIR)/io/terminal.o
kernel: common $(KERNSRCS)
$(KCC) -c $(KERNDIR)/init.c -o $(KOBJDIR)/init.o
$(KCC) -c $(KERNDIR)/ke/panic.c -o $(KOBJDIR)/ke/panic.o
$(KCC) -c $(KERNDIR)/io/ports.c -o $(KOBJDIR)/io/ports.o
$(KCC) -c $(KERNDIR)/io/terminal.c -o $(KOBJDIR)/io/terminal.o
$(KCC) $(CLDSCR) $(COMMOBJS) $(KERNOBJS) -o $(BINDIR)/kaleid-kernel.elf
#----------------------------------------------------------------------------#

3
src/boot/loader.s
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@ -58,7 +58,8 @@ GDT64:
NULL_SELECTOR: ;; null selector within 64 bits
dw GDT_LENGTH ; limit of GDT
dw GDT64 ; linear address of GDT
dd 0x0
dd 0x0 ;
CODE_SELECTOR: ;; 32-bit code selector (ring 0)
dw 0x0FFFF ; Segment Limit
db 0x0, 0x0, 0x0 ; Base Address

4
src/boot/loader64.inc
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@ -7,6 +7,7 @@
; Desc: Kernel (second stage) Loader for OS/K INCLUDED FUNCTIONS ;
; (x86_64 architecture only) ;
;=----------------------------------------------------------------------------=;
[BITS 64]
clear:
@ -33,7 +34,7 @@ write:
; bl : color code ;
; esi : string address ;
;-----------------------------------------------------------------------;
mov edi, [NextTRAM] ;TRAM ADDRESS
mov edi, [NextTRAM] ; TRAM ADDRESS
push rsi
push rdi
.pLoop:
@ -72,3 +73,4 @@ write:
.scroll:
; XXX ;
jmp .pLoop

14
src/boot/mbr.s
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@ -79,8 +79,8 @@ go:
;; INIT STACK
cli
mov ax, STACK_SEG ; Init the staaaaaack
mov ss, ax ; Continue init the staaaaaaaack
mov ax, STACK_SEG ; Init the stack
mov ss, ax ; Continue init the stack
mov sp, STACK_OFF ; Ok man, the stack is in 4K :O
sti
mov bp, (0x7c0-STACK_SEG) << 4 ; Correct bp (the disk description table)
@ -88,7 +88,7 @@ go:
;; INITIALIZE BOOT DISK
or dl, dl ; Verifying dl points actually to the boot drive
jz load_root
mov byte [Bootdrv], dl ; Another soul (the disk) saved !
mov byte [Bootdrv], dl ; Another soul (the disk) saved!
mov ah, 0x08
int 0x13 ; int 0x13 : read drive parameters/geom
jc load_root
@ -97,7 +97,7 @@ go:
mov dl, dh ; Convert the maximum head number to a word with another vaudou magical trip
xor dh, dh
inc dx ; because head numbers start at zero
mov word [heads], dx ; Another soul (the heads number) saved !
mov word [heads], dx ; Another soul (the heads number) saved!
;; LOAD THE ROOT DIRECTORY FROM DISK
@ -117,7 +117,7 @@ load_root:
mov di, BUFFER_SEG ; Set the extra segment to the disk buffer
mov es, di
mov di, BUFFER_OFF ; Set es:di and load the root directory into the disk buffer
call read_sectors ; Read the sectoooooooors !
call read_sectors ; Read the sectors
;; FIND THE SECOND STAGE LOADER
mov di, BUFFER_OFF ; Set es:di to the disk buffer
@ -128,7 +128,7 @@ search_root:
mov si, filename ; Load the filename
mov cx, 11 ; Compare first 11 bytes
rep cmpsb ; Compare si and di cx times
je load_fat ; We found the LOADEEEEEEEER!!!
je load_fat ; We found the loader
add ax, 32 ; File entry offset
mov di, BUFFER_OFF ; Point back to the start of the entry
add di, ax ; Add the offset to point to the next entry
@ -150,7 +150,7 @@ load_fat:
mov cx, ax ; Store in cx
mov ax, word [reservedSectors] ; Convert the first fat on the disk
mov di, BUFFER_OFF ; Set es:di and load the fat sectors into the disk buffer
call read_sectors ; Read the sectooooooooooors !!!
call read_sectors ; Read the sectors
;; LOAD THE CLUSTERS OF THE LOADER AND JUMP
mov di, LOAD_SEG

9
src/boot/types.h
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@ -1,9 +0,0 @@
#ifndef _I386_TYPE_
#define _I386_TYPE_
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned char uchar;
#endif

51
src/kaleid/common/assert.h
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@ -7,28 +7,45 @@
// Desc: Assertions //
//----------------------------------------------------------------------------//
#ifndef __kaleid_assert_h
#define __kaleid_assert_h
#ifndef _KALCOMM_ASSERT_H
#define _KALCOMM_ASSERT_H
#ifndef _KALCOMM_COMMON_H
#error "don't include common/types.h without common/common.h"
#endif
#ifdef _OSK_SOURCE
#if !defined(_NO_DEBUG) && !defined(NDEBUG)
// uses panic() in kernel, abort() in system
noreturn void ___assert_handler(const char *, const char *, int, const char *);
#define assert(x) do{if(unlikely(!(x)))___assert_handler(#x, __FILE__, __LINE__, __func__);}while(0);
#else // not debugging
#if !defined(NDEBUG)
#define NDEBUG 1
#endif
extern const char *panicstr;
extern void panic(const char *) __dead;
#define assert(x) do{if(!(x))panic(#x);}while(0);
#define assert_never_used(x) do{static bool __anu_##x = FALSE; \
assert(__anu_##x == FALSE); __anu_##x = TRUE;}while(0);
#define assert_used_once(x) do{static bool __anu_##x; assert(__anu_##x == TRUE);} while(0);
#else // NDEBUG
#if !defined(_NO_DEBUG)
#define _NO_DEBUG 1
#endif
#define assert(x)
#define assert_never_used(x)
#define assert_used_once(x)
#endif // NDEBUG
#endif
#else // !defined(_OSK_SOURCE)
#if defined(_NO_DEBUG) && !defined(NDEBUG)
#define NDEBUG 1
#endif
#include <assert.h>
#endif
#endif

19
src/kaleid/common/atomic.h
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@ -7,14 +7,23 @@
// Desc: Atomic stuff //
//----------------------------------------------------------------------------//
#ifndef __kaleid_atomic_h
#define __kaleid_atomic_h
#ifndef _KALCOMM_ATOMIC_H
#define _KALCOMM_ATOMIC_H
#ifndef _KALCOMM_COMMON_H
#error "don't include common/types.h without common/common.h"
#endif
// atomic_t defined in common/types.h
#define cli() // XXX
#define sti() // XXX
#define hlt() // XXX
#ifdef _KALEID_KERNEL
// only available in the kernel
#define cli() asm volatile ("cli")
#define sti() asm volatile ("sti")
#define hlt() asm volatile ("hlt")
#endif
#endif

40
src/kaleid/common/common.h
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@ -7,25 +7,39 @@
// Desc: Standard include file for both kernel/ and system/ //
//----------------------------------------------------------------------------//
#ifndef _KALCOMM_COMMON_H
#define _KALCOMM_COMMON_H
#ifndef __kaleid_common_h
#define __kaleid_common_h
#if !defined(_OSK_SOURCE) && (defined(_KALEID_KERNEL) || defined(_KALEID_SYSTEM))
#define _OSK_SOURCE 1
#endif
#define true 1
#define TRUE 1
#define YES 1
#if !defined(TRUE) && !defined(FALSE)
# define TRUE 1
# define FALSE 0
#endif
#define false 0
#define FALSE 0
#define NO 0
#ifdef _OSK_SOURCE
# define YES 1
# define NO 0
#endif
#define NULL ((void*)0)
#ifndef NULL
# define NULL ((void*)0)
#endif
#define PACKED __attribute__((packed))
#define __dead __attribute__((noreturn))
#ifndef PACKED
# define PACKED __attribute__((packed))
#endif
#define THROWS(...)
#define ERRS(...)
#ifndef noreturn
# define noreturn __attribute__((noreturn))
#endif
#if !defined(likely) && !defined(unlikely)
# define likely(x) __builtin_expect((x), 1)
# define unlikely(x) __builtin_expect((x), 0)
#endif
#include "common/types.h"
#include "common/config.h"

21
src/kaleid/common/config.h
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@ -13,18 +13,29 @@
// We may do a script that generates "config.h" for the user, asking about
// the different configuration choices in the terminal.
#ifndef __kaleid_config_h
#define __kaleid_config_h
#ifndef _KALCOMM_CONFIG_H
#define _KALCOMM_CONFIG_H
//------------------------------------------//
// General configuration choices //
//------------------------------------------//
// Enable multiprocessor support?
// Right now this has to be left to NO
//
// Enable/disable multiprocessor support
//
#define MULTIPROCESSOR NO
// etc...
//
// Enable/disable preemptivity
//
#define PREEMPTIVE YES
//
// Size of a tabulation in spaces
// Default: 4 spaces/tab
//
#define TABSIZE 4
// this file is to be progressively filled
#endif

21
src/kaleid/common/config.h.in
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@ -13,18 +13,29 @@
// We may do a script that generates "config.h" for the user, asking about
// the different configuration choices in the terminal.
#ifndef __kaleid_config_h
#define __kaleid_config_h
#ifndef _KALCOMM_CONFIG_H
#define _KALCOMM_CONFIG_H
//------------------------------------------//
// General configuration choices //
//------------------------------------------//
// Enable multiprocessor support?
// Right now this has to be left to NO
//
// Enable/disable multiprocessor support
//
#define MULTIPROCESSOR NO
// etc...
//
// Enable/disable preemptivity
//
#define PREEMPTIVE YES
//
// Size of a tabulation in spaces
// Default: 4 spaces/tab
//
#define TABSIZE 4
// this file is to be progressively filled
#endif

24
src/kaleid/common/convert.h Normal file
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@ -0,0 +1,24 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: Conversion utilities //
//----------------------------------------------------------------------------//
#ifndef _KALCOMM_CONVERT_H
#define _KALCOMM_CONVERT_H
#ifndef _KALCOMM_COMMON_H
#include "common/common.h"
#endif
#ifndef _OSK_SOURCE
# define itoa _osk_itoa
# define atoi _osk_atoi
#endif
char *itoa(int, char *, int);
#endif

52
src/kaleid/common/lib/convert.c Normal file
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@ -0,0 +1,52 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: Conversion utilities //
//----------------------------------------------------------------------------//
#include "common/convert.h"
//
// Digits table for bases <=36
//
static const char digits[36] =
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
//
// Integer to string in any base between 2 and 36 (included)
//
char *itoa(int i, char *str, int base)
{
int neg = 0;
char *orig = str;
if (base < 2 || base > 36)
return NULL;
// deal with negatives
if (i < 0) {
neg = 1;
i = -i;
}
// deal with zero separatly
if (i == 0) {
*str++ = '0';
}
// compute digits... in reverse order
while (i > 0) {
*str++ = digits[i % base];
i /= base;
}
if (neg) *str++ = '-';
*str = '\0';
return reverse(orig);
}

11
src/kaleid/common/lib/memory.c Normal file
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@ -0,0 +1,11 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: mem*() functions //
//----------------------------------------------------------------------------//
#include "common/memory.h"

69
src/kaleid/common/lib/sprintf.c Normal file
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@ -0,0 +1,69 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: sprintf()-related functions //
//----------------------------------------------------------------------------//
#include "common/string.h"
//
// Format str according to fmt using ellipsed arguments
//
int sprintf(char *str, const char *fmt, ...)
{
int ret;
va_list ap;
va_start(ap);
ret = vsnprintf(str, SIZE_T_MAX, fmt, ap);
va_end(ap);
return ret;
}
int vsprintf(char *str, const char *fmt, va_list ap)
{
return vsnprintf(str, SIZE_T_MAX, fmt, ap);
}
//
// (v)sprintf() but with a size limit: no more than n bytes are written in str
// XXX null termination behavior?
//
int snprintf(char *str, size_t n, const char *fmt, ...)
{
int ret;
va_list ap;
va_start(ap);
ret = vsnprintf(str, n, fmt, ap)
va_end(ap);
return ret;
}
int vsnprintf(char *str, size_t n, const char *fmt, va_list ap)
{
int ret = 0;
while (*fmt && ret < n) {
if (*fmt != '%') {
*str++ = *fmt++;
ret++;
continue;
}
switch (*fmt) {
case 'd':
default:
break;
}
}
return ret;
}

31
src/kaleid/common/lib/status.c Normal file
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@ -0,0 +1,31 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: Implementation of describe_status() //
//----------------------------------------------------------------------------//
#include "common/common.h"
static const char *descriptions[] = {
[-SUCCESS] = "Success",
[-FAILED] = "Failed (no precision)",
[-NOT_PERMITTED] = "Operation not permitted",
[-ACCESS_DENIED] = "Access denied",
[-BAD_ARGUMENT] = "Bad argument",
[-BAD_ARG_RANGE] = "Bad argument (not in range)",
[-BAD_ARG_NULL] = "Bad argument (null pointer)",
};
const char *describe_status(status_t status)
{
(void)descriptions;
(void)status;
// XXX
return "";
}

58
src/kaleid/common/lib/string.c
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@ -4,28 +4,64 @@
// Authors: spectral` //
// NeoX //
// //
// Desc: strlen() function //
// Desc: String-related functions //
//----------------------------------------------------------------------------//
#include "common/string.h"
// XXX several of these should be re-wrote in assembly
// TODO multibyte, assembly
size_t strlen(const char *s)
//
// Returns str's length
//
size_t strlen(const char *str)
{
const char *base = str;
while (*str++);
return (str - base - 1);
}
//
// Copy the string src into dest
//
char *strcpy(char *dest, const char *src)
{
char *base = dest;
while ((*dest++ = *src++));
return base;
}
//
// strcpy() but safer
//
char *strncpy(char *dest, const char *src, size_t n)
{
size_t i;
for (i = 0; s; s++, i++);
for (i = 0; i < n && src[i]; i++) {
dest[i] = src[i];
}
return i;
while (i < n) dest[i++] = 0;
return dest;
}
/*size_t wcslen(const wchar_t *s);
//
// Reverses a string
//
char *reverse(char *str)
{
int i;
char ch, *orig = str;
size_t n = strlen(str);
char *temp = str + n - 1;
for (i = 0; s; s++, i++);
return s;
}*/
while (temp > str) {
ch = *temp;
*temp-- = *str;
*str++ = ch;
}
return orig;
}

18
src/kaleid/common/memory.h Normal file
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@ -0,0 +1,18 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: mem*() functions //
//----------------------------------------------------------------------------//
#ifndef _KALCOMM_MEMORY_H
#define _KALCOMM_MEMORY_H
#ifndef _KALCOMM_COMMON_H
#include "common/common.h"
#endif
#endif

17
src/kaleid/common/status.h
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@ -7,9 +7,19 @@
// Desc: Values for status_t //
//----------------------------------------------------------------------------//
#ifndef _KALCOMM_STATUS_H
#define _KALCOMM_STATUS_H
#ifndef __kaleid_status_h
#define __kaleid_status_h
#ifndef _KALCOMM_COMMON_H
#error "don't include common/types.h without common/common.h"
#endif
#ifndef _OSK_SOURCE
# define describe_status _osk_describe_status
#endif
// see in common/lib/status.c for status messages
const char *describe_status(status_t);
#define STATUS_FAILED(x) ((x) < 0))
#define STATUS_SUCCESS(x) (!STATUS_FAILED(x))
@ -23,8 +33,9 @@
#define BAD_ARGUMENT (-4) // invalid arguments, can't be more precise
#define BAD_ARG_RANGE (-5) // arguments out of range
#define BAD_ARG_NULL (-6) // unexpected NULL argument
#define TRY_AGAIN (-6) // EAGAIN
#define TRY_AGAIN (-7) // EAGAIN
#endif

30
src/kaleid/common/string.h
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@ -8,12 +8,36 @@
//----------------------------------------------------------------------------//
#ifndef __kaleid_string_h
#define __kaleid_string_h
#ifndef _KALCOMM_STRING_H
#define _KALCOMM_STRING_H
#ifndef _KALCOMM_COMMON_H
#include "common/common.h"
#endif
size_t strlen(const char *s);
#ifndef _OSK_SOURCE
# define strlen _osk_strlen
# define strcpy _osk_strcpy
# define strncpy _osk_strncpy
# define reverse _osk_reverse
# define sprintf _osk_sprintf
# define snprintf _osk_snprintf
# define vsprintf _osk_vsprintf
# define vsnprintf _osk_vsnprintf
#endif
size_t strlen(const char *);
char *strcpy(char *, const char *);
char *strncpy(char *, const char *, size_t);
char *reverse(char *);
int sprintf(char *, const char *, ...);
int snprintf(char *, size_t, const char *, ...);
int vsprintf(char *, const char *, va_list);
int vsnprintf(char *, size_t, const char *, va_list);
#endif

29
src/kaleid/common/types.h
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@ -8,25 +8,34 @@
//----------------------------------------------------------------------------//
#ifndef __kaleid_types_h
#define __kaleid_types_h
#ifndef _KALCOMM_TYPES_H
#define _KALCOMM_TYPES_H
#ifndef _KALCOMM_COMMON_H
#error "don't include common/types.h without common/common.h"
#endif
#ifndef KEEP_KALCOMM_TYPES_MINIMAL
typedef _Bool bool;
typedef unsigned char uchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulong;
typedef long long llong;
typedef unsigned long long ullong;
typedef long double ldouble;
typedef short status_t;
typedef short port_t;
typedef uint wchar_t;
typedef ulong size_t;
typedef long ssize_t;
// XXX
typedef ullong size_t;
typedef llong ssize_t;
typedef size_t off_t;
typedef int atomic_t;
typedef ulong pid_t; // etc...
typedef ulong pid_t;
typedef void *va_list;
#endif
typedef short port_t;
typedef short status_t;
// XXX limits
#endif

10
src/kaleid/kernel/init.c
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@ -8,13 +8,15 @@
//----------------------------------------------------------------------------//
#include "kernel/init.h"
#include "kernel/ke/panic.h"
#include "kernel/io/terminal.h"
void _start(void)
//
// Entry point of kaleid-kernel.elf
//
void kstart(void)
{
assert(strlen("test") == 4);
kterm_init();
kterm_print("Hello World!");
panic("Goodbye World :(");
}

5
src/kaleid/kernel/init.h
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@ -7,11 +7,10 @@
// Desc: Include file for init.c //
//----------------------------------------------------------------------------//
#ifndef __kaleid_kernel_init_h
#define __kaleid_kernel_init_h
#ifndef _KALKERN_INIT_H
#define _KALKERN_INIT_H
#include "common/common.h"
#include "common/string.h"
// kernel entry point
void kstart(void);

8
src/kaleid/kernel/io/ports.h
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@ -7,15 +7,15 @@
// Desc: Ports I/O //
//----------------------------------------------------------------------------//
#ifndef __kaleid_kernel_io_ports_h
#define __kaleid_kernel_io_ports_h
#ifndef _KALKERN_IO_PORTS_H
#define _KALKERN_IO_PORTS_H
#include "common/common.h"
#define outb(port,val) asm volatile ("outb %1, %0" : : "dN" (port), "a" (value))
uchar inb(port_t port);
ushort inw(port_t port);
uchar inb(port_t);
ushort inw(port_t);
#endif

205
src/kaleid/kernel/io/terminal.c
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@ -9,139 +9,178 @@
#include "kernel/io/terminal.h"
// VGA buffer size
static const size_t kterm_width = 80;
static const size_t kterm_height = 25;
// position in the buffer
static size_t current_row;
static size_t current_col;
static uchar current_color;
// each buffer entry is composed of two bytes
// one is the color code, the other the character
static ushort *const buffer = (ushort *)0xB8000;
//
// VGA-related macros
//
#define ComputeColorCode(fg, bg) ((fg) | (bg) << 4)
#define ComputeEntryOffset(x, y) ((y) * kterm_width + (x))
#define ComputeEntryOffset(kt, x, y) ((y) * kt->kt_width + (x))
#define ComputeEntry(ch, cl) (((ushort)(ch)) | (ushort)(cl) << 8)
//
// VGA output
//
static struct kterm _kt_vga = {
.kt_buffer = (ushort *)0xB8000,
.kt_width = 80,
.kt_height = 25,
.kt_curr_x = 0,
.kt_curr_y = 0,
.kt_color = ComputeColorCode(KTERM_COLOR_LGREY, KTERM_COLOR_BLACK),
.kt_lock = NULL,
#ifndef _NO_DEBUG
.kt_init = FALSE,
#endif
};
//
// Standard output terminal
//
struct kterm *kt_stdout;
//
// Initialize standard output
//
void kterm_init(void)
{
assert_never_used(kterm_init);
assert(!kt_stdout && !_kt_vga.kt_init && "kterm_init() called twice");
kterm_change_color(ComputeColorCode(KTERM_COLOR_LIGHT_GREY, KTERM_COLOR_BLACK));
kterm_clear();
#ifndef _NO_DEBUG
_kt_vga.kt_init = TRUE;
#endif
// to be switched to VESA
kt_stdout = &_kt_vga;
ktclear();
}
void kterm_clear(void)
//
// Fills terminal with spaces
// XXX would '\0' work too?
//
status_t kterm_clear(struct kterm *kt)
{
size_t x, y;
size_t i;
assert_used_once(kterm_init);
if (kt == NULL)
return BAD_ARG_NULL;
for (x = 0; x < kterm_width; x++) {
for (y = 0; y < kterm_height; y++) {
const size_t offset = ComputeEntryOffset(x,y);
buffer[offset] = ComputeEntry(' ', current_color);
}
assert(kt->kt_init && "kterm_clear called before initialization");
kterm_lock(kt);
const ushort filler = ComputeEntry(' ', kt->kt_color);
const size_t bufsize = kt->kt_width * kt->kt_height;
for (i = 0; i < bufsize; i++) {
// XXX implement memset()
kt->kt_buffer[i] = filler;
}
// go back to beginning
current_row = current_col = 0;
kt->kt_curr_x = kt->kt_curr_y = 0;
// XXX cursor update
}
status_t kterm_change_color(uchar color)
{
if (color > KTERM_COLOR_WHITE)
return BAD_ARG_RANGE;
current_color = color;
kterm_unlock(kt);
return SUCCESS;
}
void kterm_putchar(char ch)
//
// Change the color code
//
status_t kterm_change_color(struct kterm *kt, uchar color)
{
if (color > KTERM_COLOR_WHITE)
return BAD_ARG_RANGE;
if (kt == NULL)
return BAD_ARG_NULL;
kterm_lock(kt);
kt->kt_color = color;
kterm_unlock(kt);
return SUCCESS;
}
//
// Writes a single character on the terminal (UNLOCKED version)
//
// DEPRECATED:
// - always use kterm_putch (LOCKED version)
// - doesn't check for NULL input
//
void kterm_putch_unlocked(struct kterm *kt, char ch)
{
int i;
size_t prev;
assert_used_once(kterm_init);
size_t prev_row;
// carriage return takes us back to the beginning of the line
// no further test should be necessary
if (ch == '\r') { current_col = 0; return; }
if (ch == '\r') { kt->kt_curr_x = 0; return; }
// line feed first takes us to the very end of the line
// later in this function we actually do the line feed
else if (ch == '\n') { current_col = kterm_width - 1; }
else if (ch == '\n') { kt->kt_curr_y = kt->kt_width - 1; }
// tabulations account for 4 spaces
else if (ch == '\t') {
prev = current_row;
prev_row = kt->kt_curr_y;
// compiler will optimize this away
for (i = 0; i < 4; i++) {
for (i = 0; i < TABSIZE; i++) {
// tabulations can't spread over two lines
if (current_row != prev) return;
kterm_putchar(' ');
if (kt->kt_curr_y == prev_row) {
kterm_putch_unlocked(kt, ' ');
}
}
}
// XXX check whether we were given a writable character
else {
const size_t offset = ComputeEntryOffset(current_col, current_row);
buffer[offset] = ComputeEntry(ch, current_color);
const size_t offset = ComputeEntryOffset(kt, kt->kt_curr_x, kt->kt_curr_y);
kt->kt_buffer[offset] = ComputeEntry(ch, kt->kt_color);
}
// end of line?
if (++current_col == kterm_width) {
current_col = 0;
if (++kt->kt_curr_x == kt->kt_width) {
kt->kt_curr_x = 0;
// end of buffer?
if (++current_row == kterm_height) {
current_row = 0;
// XXX save previous buffer(?) and clear
// line feed + end of buffer?
if (++kt->kt_curr_y == kt->kt_height) {
kt->kt_curr_y = 0;
}
}
}
void kterm_print(const char *s)
//
// Writes a single character on the terminal (LOCKED version)
//
status_t kterm_putch(struct kterm *kt, char ch)
{
while (*s) {
kterm_putchar(*s);
s++;
}
if (kt == NULL)
return BAD_ARG_NULL;
kterm_lock(kt);
kterm_putch_unlocked(kt, ch);
kterm_unlock(kt);
return SUCCESS;
}
void panic(const char *s)
//
// Print string on kterminal
//
status_t kterm_print(struct kterm *kt, const char *str)
{
cli();
if (kt == NULL)
return BAD_ARG_NULL;
panicstr = s;
kterm_lock(kt);
while (*str) {
kterm_putch_unlocked(kt, *str++);
}
kterm_unlock(kt);
kterm_clear();
kterm_print("panic! - ");
kterm_print(s);
while (1) hlt();
__builtin_unreachable();
return SUCCESS;
}

69
src/kaleid/kernel/io/terminal.h
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@ -7,37 +7,58 @@
// Desc: Early terminal functions //
//----------------------------------------------------------------------------//
#ifndef __kaleid_kernel_io_terminal_h
#define __kaleid_kernel_io_terminal_h
#ifndef _KALKERN_IO_KTERM_H
#define _KALKERN_IO_KTERM_H
#include "common/common.h"
// all available colors
enum {
KTERM_COLOR_BLACK,
KTERM_COLOR_BLUE,
KTERM_COLOR_GREEN,
KTERM_COLOR_CYAN,
KTERM_COLOR_RED,
KTERM_COLOR_MAGENTA,
KTERM_COLOR_BROWN,
KTERM_COLOR_LIGHT_GREY,
KTERM_COLOR_DARK_GREY,
KTERM_COLOR_LIGHT_BLUE,
KTERM_COLOR_LIGHT_GREEN,
KTERM_COLOR_LIGHT_CYAN,
KTERM_COLOR_LIGHT_RED,
KTERM_COLOR_LIGHT_MAGENTA,
KTERM_COLOR_LIGHT_BROWN,
KTERM_COLOR_WHITE
enum kterm_color {
KTERM_COLOR_BLACK, KTERM_COLOR_BLUE,
KTERM_COLOR_GREEN, KTERM_COLOR_CYAN,
KTERM_COLOR_RED, KTERM_COLOR_MAGENTA,
KTERM_COLOR_BROWN, KTERM_COLOR_LGREY,
KTERM_COLOR_DARK_GREY, KTERM_COLOR_LBLUE,
KTERM_COLOR_LGREEN, KTERM_COLOR_LCYAN,
KTERM_COLOR_LRED, KTERM_COLOR_LMAGENTA,
KTERM_COLOR_LBROWN, KTERM_COLOR_WHITE
};
void kterm_init(void);
void kterm_clear(void);
void kterm_putchar(char ch);
void kterm_print(const char *s);
struct kterm {
void *kt_lock;
ushort *kt_buffer;
uchar kt_color;
size_t kt_width;
size_t kt_height;
off_t kt_curr_x;
off_t kt_curr_y;
#ifndef _NO_DEBUG
bool kt_init;
#endif
status_t kterm_change_color(uchar color) ERRS(BAD_ARG_RANGE);
};
// current "standard" terminal
extern struct kterm *kt_stdout;
void kterm_init(void);
status_t kterm_clear(struct kterm *);
status_t kterm_putch(struct kterm *, char);
status_t kterm_print(struct kterm *, const char *);
status_t kterm_change_color(struct kterm *, uchar);
#ifdef _UNLOCKED_IO
void kterm_putch_unlocked(struct kterm *, char);
#endif
#define ktclear() kterm_clear(kt_stdout)
#define ktputch(c) kterm_putch(kt_stdout, (c))
#define ktprint(s) kterm_print(kt_stdout, (s))
#define ktchcol(c) kterm_change_color(kt_stdout, (c))
#define kterm_lock(kt)
#define kterm_trylock(kt)
#define kterm_unlock(kt)
#endif

59
src/kaleid/kernel/ke/panic.c Normal file
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@ -0,0 +1,59 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: How NOT to panic 101 //
//----------------------------------------------------------------------------//
#include "kernel/ke/panic.h"
//
// Panic message
//
const char *panicstr = NULL;
//
// Failed assert() handler
//
noreturn void ___assert_handler(const char *msg, const char *file, int line, const char *func)
{
// not getting out of here
cli();
(void)file; (void)line; (void)func;
// XXX sprintf() to create a proper panicstr
panic(msg);
}
//
// Your best boy panic()
//
void panic(const char *str)
{
cli();
ktclear();
if (str == NULL) {
str = "(no message given)";
}
if (panicstr) {
// shouldn't be possible
ktprint("double panic!\n");
hlt();
}
panicstr = str;
ktprint("panic! - ");
ktprint(str);
while (TRUE) {
hlt();
}
}

18
src/kaleid/kernel/ke/panic.h Normal file
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@ -0,0 +1,18 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: Looking to create some panic? Look no further! //
//----------------------------------------------------------------------------//
#ifndef _KALKERN_KE_PANIC_H
#define _KALKERN_KE_PANIC_H
#include "kernel/io/terminal.h"
extern const char *panicstr;
noreturn void panic(const char *);
#endif

12
src/kaleid/kernel/mm/malloc.c Normal file
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@ -0,0 +1,12 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: Memory allocation routines //
// Only exists to trigger Neox //
//----------------------------------------------------------------------------//
#include "kernel/mm/malloc.h"

16
src/kaleid/kernel/mm/malloc.h Normal file
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@ -0,0 +1,16 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: Memory allocation routines //
//----------------------------------------------------------------------------//
#ifndef _KALKERN_MM_MALLOC_H
#define _KALKERN_MM_MALLOC_H
#include "common/common.h"
#endif

44
src/kaleid/linux/test-common.c Normal file
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@ -0,0 +1,44 @@
//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Authors: spectral` //
// NeoX //
// //
// Desc: Test file for common/ //
//----------------------------------------------------------------------------//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define KEEP_KALCOMM_TYPES_MINIMAL
#include "common/common.h"
#include "common/string.h"
int main(int argc, char *argv[])
{
(void)argc;
(void)argv;
const char *test1 = "test string\n";
char *test2 = malloc(strlen(test1));
char *test3 = malloc(strlen(test1));
printf("1\n");
#undef strlen
assert(strlen("test string") == _osk_strlen("test string"));
#undef strcpy
assert(strcmp(strcpy(test2, test1), _osk_strcpy(test3, test1)) == 0);
// tests done
printf("2\n");
free(test2);
free(test3);
return 0;
}

49
src/kernel.ld Normal file
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@ -0,0 +1,49 @@
ENTRY(kstart)
SECTIONS
{
. = 0x4000; /* XXX 0x4000 is temporary */
.text : AT(ADDR(.text) - 0x4000)
{
_code = .;
*(.text)
*(.rodata*)
. = ALIGN(4096);
}
.data : AT(ADDR(.data) - 0x4000)
{
_data = .;
*(.data)
. = ALIGN(4096);
}
.eh_frame : AT(ADDR(.eh_frame) - 0x4000)
{
_ehframe = .;
*(.eh_frame)
. = ALIGN(4096);
}
.bss : AT(ADDR(.bss) - 0x4000)
{
_bss = .;
*(.bss)
/*
* You usually need to include generated COMMON symbols
* under kernel BSS section or use gcc's -fno-common
*/
*(COMMON)
. = ALIGN(4096);
}
_end = .;
/DISCARD/ :
{
*(.comment)
}
}

0
src/making.sh
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2
src/project-tree.txt
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@ -7,6 +7,8 @@
// Desc: Project Tree //
//----------------------------------------------------------------------------//
// XXX *not* up to date
src/
|
+ boot/

4
src/script.sh
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@ -1,4 +0,0 @@
make
cp ../bin/bootloader.bin "~/Documents/GNU OSK/bin/bootloader.bin"
qemu-system-x86_64 -hda "~/Documents/GNU OSK/bin/bootloader.bin"
qemu-system-i386 -hda "~/Documents/GNU OSK/bin/bootloader.bin"