feat: chargement pmode complet jusqu'à lancement du code pour la décompression
This commit is contained in:
parent
b565d073c7
commit
63f7e530cc
|
@ -1,7 +1,10 @@
|
|||
target remote localhost:1234
|
||||
set disassembly-flavor att
|
||||
symbol-file ./system/realmode/setup.sym
|
||||
add-symbol-file ./system/realmode/setup.sym 0x902f6
|
||||
set architecture i8086
|
||||
break *0x90200
|
||||
cont
|
||||
clear *0x90200
|
||||
break main
|
||||
cont
|
||||
clear main
|
||||
|
|
|
@ -882,7 +882,12 @@ class Source(Dashboard.Module):
|
|||
if not gdb.selected_thread().is_stopped():
|
||||
return []
|
||||
# try to fetch the current line (skip if no line information)
|
||||
sal = gdb.selected_frame().find_sal()
|
||||
arch = gdb.parameter('architecture');
|
||||
if arch=="i8086":
|
||||
realpc=int(gdb.parse_and_eval('$pc'))+int(gdb.parse_and_eval('$cs'))*16
|
||||
sal = gdb.find_pc_line(realpc)
|
||||
else:
|
||||
sal = gdb.selected_frame().find_sal()
|
||||
current_line = sal.line
|
||||
if current_line == 0:
|
||||
return []
|
||||
|
@ -962,7 +967,12 @@ instructions constituting the current statement are marked, if available."""
|
|||
if not gdb.selected_thread().is_stopped():
|
||||
return []
|
||||
line_info = None
|
||||
arch = gdb.parameter('architecture');
|
||||
frame = gdb.selected_frame() # PC is here
|
||||
if arch=="i8086":
|
||||
realpc=frame.pc()+int(gdb.parse_and_eval('$cs'))*16
|
||||
else:
|
||||
realpc=frame.pc()
|
||||
disassemble = frame.architecture().disassemble
|
||||
try:
|
||||
# try to fetch the function boundaries using the disassemble command
|
||||
|
@ -971,21 +981,20 @@ instructions constituting the current statement are marked, if available."""
|
|||
end = int(re.split('[ :]', output[-3][3:], 1)[0], 16)
|
||||
asm = disassemble(start, end_pc=end)
|
||||
# find the location of the PC
|
||||
pc_index = next(index for index, instr in enumerate(asm)
|
||||
if instr['addr'] == frame.pc())
|
||||
pc_index = next(index for index, instr in enumerate(asm) if instr['addr'] == realpc)
|
||||
start = max(pc_index - self.context, 0)
|
||||
end = pc_index + self.context + 1
|
||||
asm = asm[start:end]
|
||||
# if there are line information then use it, it may be that
|
||||
# line_info is not None but line_info.last is None
|
||||
line_info = gdb.find_pc_line(frame.pc())
|
||||
line_info = gdb.find_pc_line(realpc)
|
||||
line_info = line_info if line_info.last else None
|
||||
except (gdb.error, StopIteration):
|
||||
# if it is not possible (stripped binary or the PC is not present in
|
||||
# the output of `disassemble` as per issue #31) start from PC and
|
||||
# end after twice the context
|
||||
try:
|
||||
asm = disassemble(frame.pc(), count=2 * self.context + 1)
|
||||
asm = disassemble(realpc, count=2 * self.context + 1)
|
||||
except gdb.error as e:
|
||||
msg = '{}'.format(e)
|
||||
return [ansi(msg, R.style_error)]
|
||||
|
@ -1046,7 +1055,7 @@ instructions constituting the current statement are marked, if available."""
|
|||
format_string = '{}{}{}{}{}'
|
||||
indicator = ' '
|
||||
text = ' ' + highlighter.process(text)
|
||||
if addr == frame.pc():
|
||||
if addr == realpc:
|
||||
if not R.ansi:
|
||||
indicator = '>'
|
||||
addr_str = ansi(addr_str, R.style_selected_1)
|
||||
|
|
|
@ -91,12 +91,10 @@ u8 testA20(void);
|
|||
void enableA20kbc(void);
|
||||
void enableA20fast(void);
|
||||
u8 enableA20(void);
|
||||
void memset(void *dst, u8 val, u32 count, u32 size);
|
||||
void memcpy(void *src, void *dst, u32 count, u32 size);
|
||||
void initselectors(u32 executingoffset);
|
||||
void memcpyto(void *src, void *dst, u32 count);
|
||||
void makegdtdes(u32 base, u32 limite, u8 acces, u8 flags, gdtdes * desc);
|
||||
void initgdt();
|
||||
void maskinterrupts(void);
|
||||
void initcoprocessor(void);
|
||||
void initpmode(u32 offset);
|
||||
void initpmode();
|
||||
void main(void);
|
||||
|
|
|
@ -1,4 +1,5 @@
|
|||
/*******************************************************************************/
|
||||
/* COS2000 - Compatible Operating System - LGPL v3 - Hordé Nicolas */
|
||||
/* */
|
||||
extern restart;
|
||||
extern restart;
|
||||
int main(u8* info);
|
||||
|
|
52
lib/gdt.c
52
lib/gdt.c
|
@ -6,9 +6,61 @@
|
|||
#include "types.h"
|
||||
#include "memory.h"
|
||||
|
||||
/* registre gdt */
|
||||
static struct gdtr gdtreg;
|
||||
|
||||
/* table de GDT */
|
||||
static gdtdes gdt[GDT_SIZE];
|
||||
|
||||
/* TSS */
|
||||
static struct tss tss0;
|
||||
|
||||
/*******************************************************************************/
|
||||
/* Créé un descripteur GDT */
|
||||
|
||||
void makegdtdes(u32 base, u32 limite, u8 acces, u8 flags, gdtdes * desc)
|
||||
{
|
||||
desc->lim0_15 = (limite & 0xffff);
|
||||
desc->base0_15 = (base & 0xffff);
|
||||
desc->base16_23 = (base & 0xff0000) >> 16;
|
||||
desc->acces = acces;
|
||||
desc->lim16_19 = (limite & 0xf0000) >> 16;
|
||||
desc->flags = (flags & 0xf);
|
||||
desc->base24_31 = (base & 0xff000000) >> 24;
|
||||
return;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
/* Initialise la GDT */
|
||||
|
||||
void initgdt(u32 offset)
|
||||
{
|
||||
makegdtdes(0x0, 0x00000, 0x00, 0x00, &gdt[0]); /* descripteur nul */
|
||||
makegdtdes(0x0, 0xFFFFF, SEG_PRESENT | SEG_NORMAL | SEG_CODE | SEG_RING0 | SEG_READ | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[1]); /* code -> SEL_KERNEL_CODE */
|
||||
makegdtdes(0x0, 0x00000, SEG_PRESENT | SEG_NORMAL | SEG_DATA | SEG_RING0 | SEG_EXPAND_DOWN | SEG_READ_WRITE | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[2]); /* pile -> SEL_KERNEL_STACK */
|
||||
makegdtdes(0x0, 0xFFFFF, SEG_PRESENT | SEG_NORMAL | SEG_CODE | SEG_RING3 | SEG_CONFORMING | SEG_READ | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[3]); /* code -> SEL_USER_CODE */
|
||||
makegdtdes(0x0, 0x00000, SEG_PRESENT | SEG_NORMAL | SEG_DATA | SEG_RING3 | SEG_EXPAND_DOWN | SEG_READ_WRITE | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[4]); /* pile -> SEL_USER_STACK */
|
||||
makegdtdes(0x0, 0xFFFFF, SEG_PRESENT | SEG_NORMAL | SEG_DATA | SEG_RING0 | SEG_READ_WRITE | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[5]); /* data -> SEL_KERNEL_DATA */
|
||||
makegdtdes(0x0, 0xFFFFF, SEG_PRESENT | SEG_NORMAL | SEG_DATA | SEG_RING3 | SEG_READ_WRITE | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[6]); /* data -> SEL_USER_DATA */
|
||||
|
||||
tss0.trapflag = 0x00;
|
||||
tss0.iomap = 0x00;
|
||||
tss0.esp0 = 0x6000;
|
||||
tss0.ss0 = SEL_TSS;
|
||||
|
||||
makegdtdes(&tss0, 0x67, SEG_PRESENT | SEG_CODE | SEG_RING3 | SEG_ACCESSED, 0x00, &gdt[7]); /* descripteur de tss */
|
||||
|
||||
/* initialise le registre gdt */
|
||||
gdtreg.limite = GDT_SIZE * sizeof(gdtdes);
|
||||
gdtreg.base = GDT_ADDR;
|
||||
/* recopie de la GDT a son adresse */
|
||||
memcpy(&gdt, (u8 *) gdtreg.base, gdtreg.limite, 1);
|
||||
/* chargement du registre GDT */
|
||||
lgdt(gdtreg);
|
||||
/* initialisation des segments */
|
||||
initselectors(offset);
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
/* Initialise les selecteurs avec la GDT */
|
||||
|
||||
|
|
14
makefile
14
makefile
|
@ -1,4 +1,4 @@
|
|||
DEBUG=exec gnome-terminal --geometry=120x40+1+1 -x ./debug/debug.sh
|
||||
DEBUG=exec gnome-terminal --geometry=120x55+1+1 -x ./debug/debug.sh
|
||||
REMOVE=rm -f
|
||||
INSTALL=sudo apt-get install
|
||||
COPY=cp
|
||||
|
@ -81,15 +81,15 @@ backup: clean
|
|||
cd ..
|
||||
tar cf - Source\ C | gzip -f - > backup.tar.gz
|
||||
|
||||
test: programs bits32 harddisk qemu
|
||||
test: tools programs bits32 harddisk qemu
|
||||
|
||||
test64: programs bits64 uefi qemu64
|
||||
test64: tools programs bits64 uefi qemu64
|
||||
|
||||
retest: littleclean test
|
||||
|
||||
retest64: littleclean test64
|
||||
|
||||
testbochs: programs bits32 harddisk bochs-debug
|
||||
testbochs: tools programs bits32 harddisk bochs-debug
|
||||
|
||||
view:
|
||||
hexdump -C ./final/harddisk.img.final|head -c10000
|
||||
|
@ -104,15 +104,15 @@ redebug64: littleclean debug-system64
|
|||
|
||||
kernel: debug-kernel
|
||||
|
||||
debug-boot: programs bits32 harddisk qemu-debug
|
||||
debug-boot: tools programs bits32 harddisk qemu-debug
|
||||
sleep 2
|
||||
$(DEBUG) ./debug/boot.txt
|
||||
|
||||
debug-system: programs bits32 harddisk qemu-debug
|
||||
debug-system: tools programs bits32 harddisk qemu-debug
|
||||
sleep 2
|
||||
$(DEBUG) ./debug/system.txt
|
||||
|
||||
debug-system64: programs bits64 uefi qemu-debug64
|
||||
debug-system64: tools programs bits64 uefi qemu-debug64
|
||||
sleep 2
|
||||
$(DEBUG) ./debug/system.txt
|
||||
|
||||
|
|
|
@ -34,7 +34,7 @@ togit: clean indent
|
|||
piggy.o: piggy.S
|
||||
$(ASM) $@ $^
|
||||
|
||||
system: systemc.o system.o ../lib/libs.o
|
||||
system: system.o system_asm.o ../lib/libs.o
|
||||
$(LINK) -T system.ld system.o ../lib/libs.o
|
||||
$(OBJDEBUG) system system.sym
|
||||
$(NM) system > system.map
|
||||
|
@ -51,10 +51,10 @@ piggy.S: system.bin.gz
|
|||
realmode/setup.bin:
|
||||
make -C realmode
|
||||
|
||||
systemc.o: system.c
|
||||
system.o: system.c
|
||||
$(GCC) $@ $^
|
||||
|
||||
system.o: system.S
|
||||
system_asm.o: system_asm.S
|
||||
$(ASM) $@ $^
|
||||
|
||||
clean:
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
GCC=gcc -O0 -g -nostdinc -ffreestanding -Wall -Wstrict-prototypes -fno-stack-protector -march=i386 -m16 -mpreferred-stack-boundary=2 -mregparm=3 -fno-pic -fno-strict-aliasing -mno-mmx -mno-sse -w -I ../../include -c
|
||||
GCC=gcc -O0 -g -nostdinc -ffreestanding -Wall -Wstrict-prototypes -fno-stack-protector -march=i386 -m16 -fno-pic -fno-strict-aliasing -mno-mmx -mno-sse -w -I ../../include -c
|
||||
ASM=gcc -O0 -m16 -march=i386 -fno-pic -D__ASSEMBLY__ -I ../ -I ../../include -c -o
|
||||
LINK=ld -m elf_i386 -n
|
||||
CONVERT=dos2unix
|
||||
|
@ -13,8 +13,8 @@ $(eval VERSION=$(shell git describe --tags))
|
|||
all: setup.bin
|
||||
sync
|
||||
|
||||
setup: setupc.o setup.o
|
||||
$(LINK) -T setup.ld setupc.o setup.o
|
||||
setup: setupc.o setup.o setup32.o
|
||||
$(LINK) -T setup.ld setupc.o setup.o setup32.o
|
||||
|
||||
setup.bin: setup
|
||||
$(OBJCOPY) $^ $@
|
||||
|
@ -27,6 +27,9 @@ setupc.o: setup.c
|
|||
setup.o: setup.S
|
||||
$(ASM) $@ $^
|
||||
|
||||
setup32.o: pmode.S
|
||||
$(ASM) $@ $^
|
||||
|
||||
clean:
|
||||
$(REMOVE) setup
|
||||
$(REMOVE) *.o
|
||||
|
|
|
@ -0,0 +1,40 @@
|
|||
#include "memory.h"
|
||||
#include "gdt.h"
|
||||
.text
|
||||
.code16
|
||||
|
||||
.global gotopmode
|
||||
gotopmode:
|
||||
jmp 1f
|
||||
1:
|
||||
xorl %eax,%eax
|
||||
movl %ds,%ax
|
||||
shl $0x4,%eax
|
||||
add %eax,(2f)
|
||||
movl %cr0, %eax
|
||||
orb $0x01, %al
|
||||
movl %eax, %cr0
|
||||
.byte 0x66, 0xea
|
||||
2: .long pmode
|
||||
.word SEL_KERNEL_CODE
|
||||
|
||||
.code32
|
||||
.section ".text32","ax"
|
||||
.global pmode
|
||||
pmode:
|
||||
movw $SEL_KERNEL_DATA, %ax
|
||||
movw %ax, %ds
|
||||
movw %ax, %es
|
||||
movw %ax, %fs
|
||||
movw %ax, %gs
|
||||
movl $KERNEL_CODE_ADDR, %ebx
|
||||
movw $SEL_KERNEL_STACK, %ax
|
||||
movw %ax, %ss
|
||||
movl $KERNEL_STACK_ADDR, %esp
|
||||
xor %eax,%eax
|
||||
xor %ecx,%ecx
|
||||
xor %edx,%edx
|
||||
xor %esi,%esi
|
||||
xor %edi,%edi
|
||||
xor %ebp,%ebp
|
||||
jmp *%ebx
|
|
@ -123,7 +123,7 @@ setup_move_size: .word 0x8000 # size to move, when setup is not
|
|||
|
||||
code32_start: # here loaders can put a different
|
||||
# start address for 32-bit code.
|
||||
.long 0x100000 # 0x100000 = default for big kernel
|
||||
.long LOAD_PHYSICAL_ADDR # 0x100000 = default for big kernel
|
||||
|
||||
ramdisk_image: .long 0 # address of loaded ramdisk image
|
||||
# Here the loader puts the 32-bit
|
||||
|
|
|
@ -175,86 +175,37 @@ u8 enableA20(void)
|
|||
int loops = LOOPS_A20_ENABLE;
|
||||
int kbcerr;
|
||||
while (loops--) {
|
||||
if (testA20())
|
||||
return 1;
|
||||
if (!testA20())
|
||||
return NULL;
|
||||
kbcerr = empty8042();
|
||||
if (testA20())
|
||||
return 1;
|
||||
if (!testA20())
|
||||
return NULL;
|
||||
if (!kbcerr) {
|
||||
enableA20kbc();
|
||||
if (testA20())
|
||||
return 1;
|
||||
if (!testA20())
|
||||
return NULL;
|
||||
}
|
||||
enableA20fast();
|
||||
if (testA20())
|
||||
if (!testA20())
|
||||
return NULL;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
/* Copie un octet une ou plusieurs fois en mémoire */
|
||||
|
||||
void memset(void *dst, u8 val, u32 count, u32 size)
|
||||
{
|
||||
u8 *d = (u8 *) dst;
|
||||
if (size > 0)
|
||||
size--;
|
||||
for (; count != 0; count--)
|
||||
{
|
||||
*(d++) = val;
|
||||
d += size;
|
||||
}
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
/* Copie une portion de mémoire vers une autre */
|
||||
|
||||
void memcpy(void *src, void *dst, u32 count, u32 size)
|
||||
void memcpyto(void *src, void *dst, u32 count)
|
||||
{
|
||||
u8 *s = (u8 *) src;
|
||||
u8 *d = (u8 *) dst;
|
||||
if (size > 0)
|
||||
size--;
|
||||
for (; count != 0; count--)
|
||||
{
|
||||
*(d++) = *(s++);
|
||||
d += size;
|
||||
}
|
||||
asm("push %%es\n\
|
||||
cld\n\
|
||||
xor %%eax,%%eax\n\
|
||||
mov %%ax,%%es\n\
|
||||
rep movsb\n\
|
||||
pop %%es"::"S" (src), "D" (dst), "c" (count):);
|
||||
}
|
||||
|
||||
|
||||
/*******************************************************************************/
|
||||
/* Initialise les selecteurs avec la GDT */
|
||||
|
||||
void initselectors(u32 executingoffset)
|
||||
{
|
||||
asm(" movl %%cr0, %%eax \n \
|
||||
orb $0x00000001, %%eax \n \
|
||||
movl %%eax, %%cr0 \n \
|
||||
ljmp %[code], $raz\n\
|
||||
raz:\n \
|
||||
.code32\n\
|
||||
movw %[data], %%ax \n \
|
||||
movw %%ax, %%ds \n \
|
||||
movw %%ax, %%es \n \
|
||||
movw %%ax, %%fs \n \
|
||||
movw %%ax, %%gs \n \
|
||||
movl %[offset], %%ebx \n \
|
||||
movw %[stack], %%ax \n \
|
||||
movw %%ax, %%ss \n \
|
||||
movl %[stackoff], %%esp \n \
|
||||
xor %%eax,%%eax\n\
|
||||
xor %%ebx,%%ebx\n\
|
||||
xor %%ecx,%%ecx\n\
|
||||
xor %%edx,%%edx\n\
|
||||
xor %%esi,%%esi\n\
|
||||
xor %%edi,%%edi\n\
|
||||
xor %%ebp,%%ebp\n\
|
||||
jmp %%ebx\n\
|
||||
.code16gcc"::[data] "i"(SEL_KERNEL_DATA),[code] "i"(SEL_KERNEL_CODE),[stack] "i"(SEL_KERNEL_STACK),[stackoff] "i"(KERNEL_STACK_ADDR),[offset] "m"(executingoffset));
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
/* Créé un descripteur GDT */
|
||||
|
||||
|
@ -278,16 +229,16 @@ void initgdt()
|
|||
makegdtdes(0x0, 0x00000, 0x00, 0x00, &gdt[0]); /* descripteur nul */
|
||||
makegdtdes(0x0, 0xFFFFF, SEG_PRESENT | SEG_NORMAL | SEG_CODE | SEG_RING0 | SEG_READ | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[1]); /* code -> SEL_KERNEL_CODE */
|
||||
makegdtdes(0x0, 0x00000, SEG_PRESENT | SEG_NORMAL | SEG_DATA | SEG_RING0 | SEG_EXPAND_DOWN | SEG_READ_WRITE | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[2]); /* pile -> SEL_KERNEL_STACK */
|
||||
makegdtdes(0x0, 0xFFFFF, SEG_PRESENT | SEG_NORMAL | SEG_CODE | SEG_RING3 | SEG_CONFORMING | SEG_READ | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[3]); /* code -> SEL_USER_CODE */
|
||||
makegdtdes(0x0, 0x00000, SEG_PRESENT | SEG_NORMAL | SEG_DATA | SEG_RING3 | SEG_EXPAND_DOWN | SEG_READ_WRITE | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[4]); /* pile -> SEL_USER_STACK */
|
||||
makegdtdes(0x0, 0x00000, 0x00, 0x00, &gdt[3]); /* LIBRE */
|
||||
makegdtdes(0x0, 0x00000, 0x00, 0x00, &gdt[4]); /* LIBRE */
|
||||
makegdtdes(0x0, 0xFFFFF, SEG_PRESENT | SEG_NORMAL | SEG_DATA | SEG_RING0 | SEG_READ_WRITE | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[5]); /* data -> SEL_KERNEL_DATA */
|
||||
makegdtdes(0x0, 0xFFFFF, SEG_PRESENT | SEG_NORMAL | SEG_DATA | SEG_RING3 | SEG_READ_WRITE | SEG_ACCESSED, GRANULARITY_4K | OPSIZE_32B | SYS_AVAILABLE, &gdt[6]); /* data -> SEL_USER_DATA */
|
||||
makegdtdes(0x0, 0x67, SEG_PRESENT | SEG_CODE | SEG_RING3 | SEG_ACCESSED, 0x00, &gdt[7]); /* descripteur de tss */
|
||||
makegdtdes(0x0, 0x00000, 0x00, 0x00, &gdt[6]); /* LIBRE */
|
||||
makegdtdes(0x0, 0x00000, 0x00, 0x00, &gdt[7]); /* LIBRE */
|
||||
/* initialise le registre gdt */
|
||||
gdtreg.limite = GDT_SIZE * sizeof(gdtdes);
|
||||
gdtreg.base = GDT_ADDR;
|
||||
/* recopie de la GDT a son adresse */
|
||||
memcpy(&gdt, (u8 *) gdtreg.base, gdtreg.limite, 1);
|
||||
memcpyto(&gdt, (u8 *) gdtreg.base, gdtreg.limite);
|
||||
/* chargement du registre GDT */
|
||||
lgdt(gdtreg);
|
||||
}
|
||||
|
@ -311,7 +262,7 @@ void initcoprocessor(void)
|
|||
iodelay();
|
||||
}
|
||||
|
||||
void initpmode(u32 offset)
|
||||
void initpmode()
|
||||
{
|
||||
if (enableA20()) {
|
||||
showstr("impossible d'ouvrir la ligne A20...\n");
|
||||
|
@ -319,7 +270,7 @@ void initpmode(u32 offset)
|
|||
}
|
||||
maskinterrupts();
|
||||
initgdt();
|
||||
initselectors(offset);
|
||||
gotopmode();
|
||||
}
|
||||
|
||||
void main(void)
|
||||
|
@ -334,5 +285,5 @@ void main(void)
|
|||
showstr(" -Initialisation du coprocesseur\r\n");
|
||||
initcoprocessor();
|
||||
showstr(" -Passage en mode protege\r\n");
|
||||
initpmode(0x10000);
|
||||
initpmode();
|
||||
}
|
||||
|
|
|
@ -15,6 +15,7 @@
|
|||
#include "shell.h"
|
||||
#include "syscall.h"
|
||||
#include "memory.h"
|
||||
#include "system.h"
|
||||
|
||||
static u8 warnmsg[] =
|
||||
"\033[150C\033[8D\033[37m\033[1m[ \033[36mNON\033[37m ]\033[0m";
|
||||
|
@ -59,6 +60,8 @@ int main(u8* info)
|
|||
logo();
|
||||
|
||||
print("\033[37m\033[0m -Initilisation de la memoire virtuelle");
|
||||
initgdt(&&next);
|
||||
next:
|
||||
initpaging();
|
||||
remap_memory(VESA_FBMEM);
|
||||
ok();
|
||||
|
|
|
@ -8,9 +8,8 @@
|
|||
.code32
|
||||
.section ".text"
|
||||
.global start
|
||||
.extern main
|
||||
start:
|
||||
ljmp $SEL_KERNEL_CODE,$suite
|
||||
suite:
|
||||
movw $SEL_KERNEL_DATA, %ax
|
||||
movw %ax, %ds
|
||||
movw %ax, %es
|
||||
|
@ -26,3 +25,4 @@ suite:
|
|||
xor %esi,%esi
|
||||
xor %edi,%edi
|
||||
xor %ebp,%ebp
|
||||
call main
|
Loading…
Reference in New Issue