;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision: 5130 $
GREEDY_KERNEL equ 0
struct APP_HEADER_00_
banner dq ?
version dd ? ;+8
start dd ? ;+12
i_end dd ? ;+16
mem_size dd ? ;+20
i_param dd ? ;+24
ends
struct APP_HEADER_01_
banner dq ?
version dd ? ;+8
start dd ? ;+12
i_end dd ? ;+16
mem_size dd ? ;+20
stack_top dd ? ;+24
i_param dd ? ;+28
i_icon dd ? ;+32
ends
struct APP_PARAMS
app_cmdline dd ? ;0x00
app_path dd ? ;0x04
app_eip dd ? ;0x08
app_esp dd ? ;0x0C
app_mem dd ? ;0x10
ends
macro _clear_ op
{ mov ecx, op/4
xor eax, eax
cld
rep stosd
}
fs_execute_from_sysdir:
xor ebx, ebx
fs_execute_from_sysdir_param:
xor edx, edx
mov esi, sysdir_path
align 4
proc fs_execute
;fn_read:dword, file_size:dword, cluster:dword
; ebx - cmdline
; edx - flags
; ebp - full filename
; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it
locals
cmdline_size dd ? ; +0 ; cmdline -12
cmdline_adr dd ? ; +4 ; cmdline -8
cmdline_flag dd ? ; +8 ; cmdline -4
cmdline rd 64 ;256/4
filename rd 256 ;1024/4
flags dd ?
save_proc dd ?
slot dd ?
slot_base dd ?
file_base dd ?
file_size dd ?
handle dd ? ;temp. for default cursor handle for curr. thread
;app header data
hdr_cmdline dd ? ;0x00
hdr_path dd ? ;0x04
hdr_eip dd ? ;0x08
hdr_esp dd ? ;0x0C
hdr_mem dd ? ;0x10
hdr_i_end dd ? ;0x14
endl
pushad
cmp [SCR_MODE], word 0x13
jbe @f
pushad
stdcall set_cursor, [def_cursor_clock]
mov [handle], eax
mov [redrawmouse_unconditional], 1
call wakeup_osloop
popad
@@:
mov [flags], edx
; [ebp] pointer to filename
lea edi, [filename]
lea ecx, [edi+1024]
mov al, '/'
stosb
@@:
cmp edi, ecx
jae .bigfilename
lodsb
stosb
test al, al
jnz @b
mov esi, [ebp]
test esi, esi
jz .namecopied
mov byte [edi-1], '/'
@@:
cmp edi, ecx
jae .bigfilename
lodsb
stosb
test al, al
jnz @b
jmp .namecopied
.bigfilename:
popad
mov eax, -ERROR_FILE_NOT_FOUND
jmp .final
.namecopied:
xor eax, eax
mov [cmdline_flag], eax
mov [cmdline_adr], eax
mov [cmdline_size], eax
mov [cmdline], ebx
test ebx, ebx
jz .no_copy
;--------------------------------------
pushad
pushfd
mov esi, ebx
mov ecx, 65536 ; 64 Kb max for ext.cmdline
cld
@@:
dec ecx
jz .end_string
lodsb
test al, al
jnz @b
.end_string:
mov eax, 65536 ; 64 Kb max for ext.cmdline
sub eax, ecx
mov [cmdline_size], eax
cmp eax, 255
ja @f
popfd
popad
jmp .old_copy
@@:
xor eax, eax
dec eax
mov [cmdline_flag], eax
popfd
popad
; get memory for the extended command line
stdcall kernel_alloc, [cmdline_size] ;eax
test eax, eax
jz .old_copy ; get memory failed
mov [cmdline_adr], eax
pushad
pushfd
mov esi, ebx
mov edi, eax
mov ecx, [cmdline_size]
cld
rep movsb
popfd
popad
jmp .no_copy
.old_copy:
; clear flag because old method with 256 bytes
xor eax, eax
mov [cmdline_flag], eax
;--------------------------------------
lea eax, [cmdline]
mov dword [eax+252], 0
.copy:
stdcall strncpy, eax, ebx, 255
.no_copy:
lea eax, [filename]
stdcall load_file, eax
mov esi, -ERROR_FILE_NOT_FOUND
test eax, eax
jz .err_file
mov [file_base], eax
mov [file_size], ebx
lea ebx, [hdr_cmdline]
call test_app_header
mov esi, -0x1F
test eax, eax
jz .err_hdr
call lock_application_table
call alloc_thread_slot
test eax, eax
mov esi, -0x20 ; too many processes
jz .err
mov [slot], eax
shl eax, 8
add eax, SLOT_BASE
mov [slot_base], eax
mov edi, eax
_clear_ 256 ;clean extended information about process
; write application name
lea eax, [filename]
stdcall strrchr, eax, '/' ; now eax points to name without path
lea esi, [eax+1]
test eax, eax
jnz @F
lea esi, [filename]
@@:
mov ecx, 11 ; 11 chars for name! 8 - is old value!
mov edi, [slot_base]
.copy_process_name_loop:
lodsb
cmp al, '.'
jz .copy_process_name_done
test al, al
jz .copy_process_name_done
stosb
loop .copy_process_name_loop
.copy_process_name_done:
mov ebx, [current_process]
mov [save_proc], ebx
stdcall create_process, [hdr_mem], [file_base], [file_size]
mov esi, -30; no memory
test eax, eax
jz .failed
mov ebx, [hdr_mem]
mov [eax+PROC.mem_used], ebx
mov ebx, [slot_base]
mov [ebx+APPDATA.process], eax
lea edx, [ebx+APPDATA.list]
lea ecx, [eax+PROC.thr_list]
list_add_tail edx, ecx
xor edx, edx
cmp word [6], '02'
jne @f
not edx
@@:
mov [ebx+APPDATA.tls_base], edx
if GREEDY_KERNEL
else
mov ecx, [hdr_mem]
mov edi, [file_size]
add edi, 4095
and edi, not 4095
sub ecx, edi
jna @F
xor eax, eax
cld
rep stosb
@@:
end if
; release only virtual space, not phisical memory
stdcall free_kernel_space, [file_base]
lea eax, [hdr_cmdline]
lea ebx, [cmdline]
lea ecx, [filename]
stdcall set_app_params , [slot], eax, ebx, ecx, [flags]
mov eax, [save_proc]
call set_cr3
mov eax, [process_number];set result
call unlock_application_table
jmp .final
.failed:
mov eax, [save_proc]
call set_cr3
.err:
.err_hdr:
stdcall kernel_free, [file_base]
.err_file:
call unlock_application_table
mov eax, esi
.final:
cmp [SCR_MODE], word 0x13
jbe @f
pushad
stdcall set_cursor, [handle]
mov [redrawmouse_unconditional], 1
call wakeup_osloop
popad
@@:
ret
endp
align 4
test_app_header:
virtual at eax
APP_HEADER_00 APP_HEADER_00_
end virtual
virtual at eax
APP_HEADER_01 APP_HEADER_01_
end virtual
cmp dword [eax], 'MENU'
jne .fail
cmp word [eax+4], 'ET'
jne .fail
cmp [eax+6], word '00'
jne .check_01_header
mov ecx, [APP_HEADER_00.start]
mov [ebx+0x08], ecx ;app_eip
mov edx, [APP_HEADER_00.mem_size]
mov [ebx+0x10], edx ;app_mem
shr edx, 1
sub edx, 0x10
mov [ebx+0x0C], edx ;app_esp
mov ecx, [APP_HEADER_00.i_param]
mov [ebx], ecx ;app_cmdline
mov [ebx+4], dword 0 ;app_path
mov edx, [APP_HEADER_00.i_end]
mov [ebx+0x14], edx
ret
.check_01_header:
cmp [eax+6], word '01'
je @f
cmp [eax+6], word '02'
jne .fail
@@:
mov ecx, [APP_HEADER_01.start]
mov [ebx+0x08], ecx ;app_eip
mov edx, [APP_HEADER_01.mem_size]
; \begin{diamond}[20.08.2006]
; sanity check (functions 19,58 load app_i_end bytes and that must
; fit in allocated memory to prevent kernel faults)
cmp edx, [APP_HEADER_01.i_end]
jb .fail
; \end{diamond}[20.08.2006]
mov [ebx+0x10], edx ;app_mem
mov ecx, [APP_HEADER_01.stack_top]
mov [ebx+0x0C], ecx ;app_esp
mov edx, [APP_HEADER_01.i_param]
mov [ebx], edx ;app_cmdline
mov ecx, [APP_HEADER_01.i_icon]
mov [ebx+4], ecx ;app_path
mov edx, [APP_HEADER_01.i_end]
mov [ebx+0x14], edx
ret
.fail:
xor eax, eax
ret
align 4
alloc_thread_slot:
;input:
; none
;result:
; eax=[new_thread_slot]<>0 - ok
; 0 - failed.
;This function find least empty slot.
;It doesn't increase [TASK_COUNT]!
mov edx, thr_slot_map
pushfd
cli
.l1:
bsf eax, [edx]
jnz .found
add edx, 4
cmp edx, thr_slot_map+32
jb .l1
popfd
xor eax, eax
ret
.found:
btr [edx], eax
sub edx, thr_slot_map
lea eax, [eax+edx*8]
popfd
ret
align 4
proc create_process stdcall, app_size:dword,img_base:dword,img_size:dword
locals
app_pages dd ?
img_pages dd ?
process dd ?
app_tabs dd ?
endl
push ebx
push esi
push edi
mov ecx, pg_data.mutex
call mutex_lock
xor eax, eax
mov [process], eax
mov eax, [app_size]
add eax, 4095
and eax, NOT(4095)
mov [app_size], eax
mov ebx, eax
shr eax, 12
mov [app_pages], eax
add ebx, 0x3FFFFF
and ebx, NOT(0x3FFFFF)
shr ebx, 22
mov [app_tabs], ebx
mov ecx, [img_size]
add ecx, 4095
and ecx, NOT(4095)
mov [img_size], ecx
shr ecx, 12
mov [img_pages], ecx
lea eax, [eax+ebx+2];all requested memory
cmp eax, [pg_data.pages_free]
ja .fail
stdcall kernel_alloc, 0x2000
test eax, eax
jz .fail
mov [process], eax
lea edi, [eax+PROC.heap_lock]
mov ecx, (4096-PROC.heap_lock)/4
list_init eax
add eax, PROC.thr_list
list_init eax
xor eax, eax
cld
rep stosd
mov eax, edi
call get_pg_addr
mov [edi-4096+PROC.pdt_0_phys], eax
mov ecx, (OS_BASE shr 20)/4
xor eax, eax
rep stosd
mov ecx, (OS_BASE shr 20)/4
mov esi, sys_proc+PROC.pdt_0+(OS_BASE shr 20)
rep movsd
mov eax, [edi-8192+PROC.pdt_0_phys]
or eax, PG_SW
mov [edi-4096+(page_tabs shr 20)], eax
lea eax, [edi-8192]
call set_cr3
mov edx, [app_tabs]
xor edi, edi
@@:
call alloc_page
test eax, eax
jz .fail
stdcall map_page_table, edi, eax
add edi, 0x00400000
dec edx
jnz @B
mov edi, page_tabs
mov ecx, [app_tabs]
shl ecx, 10
xor eax, eax
rep stosd
mov ecx, [img_pages]
mov ebx, PG_UW
xor edx, edx
mov esi, [img_base]
shr esi, 10
add esi, page_tabs
mov edi, page_tabs
.remap:
lodsd
and eax, 0xFFFFF000
or eax, ebx; force user level r/w access
stosd
add edx, 0x1000
dec [app_pages]
dec ecx
jnz .remap
mov ecx, [app_pages]
test ecx, ecx
jz .done
.alloc:
call alloc_page
test eax, eax
jz .fail
stdcall map_page, edx, eax, dword PG_UW
add edx, 0x1000
dec [app_pages]
jnz .alloc
.done:
mov ecx, pg_data.mutex
call mutex_unlock
mov eax, [process]
pop edi
pop esi
pop ebx
ret
.fail:
mov ecx, pg_data.mutex
call mutex_unlock
cmp [process], 0
je @f
;; stdcall destroy_app_space, [dir_addr], 0
@@:
xor eax, eax
pop edi
pop esi
pop ebx
ret
endp
align 4
set_cr3:
pushfd
cli
mov ebx, [current_slot]
mov [current_process], eax
mov [ebx+APPDATA.process], eax
mov eax, [eax+PROC.pdt_0_phys]
mov cr3, eax
popfd
ret
align 4
proc destroy_page_table stdcall, pg_tab:dword
push esi
mov esi, [pg_tab]
mov ecx, 1024
.free:
mov eax, [esi]
test eax, 1
jz .next
test eax, 2
jz .next
test eax, 1 shl 9
jnz .next ;skip shared pages
call free_page
.next:
add esi, 4
dec ecx
jnz .free
pop esi
ret
endp
align 4
destroy_process: ;fastcall ecx= ptr to process
lea eax, [ecx+PROC.thr_list]
cmp eax, [eax+LHEAD.next]
jne .exit
align 4
.internal:
push ecx
mov esi, [ecx+PROC.dlls_list_ptr]
call destroy_all_hdlls
; mov ecx, pg_data.mutex
; call mutex_lock
mov esi, [esp]
add esi, PROC.pdt_0
mov edi, (0x80000000 shr 20)/4
.destroy:
mov eax, [esi]
test eax, 1
jz .next
and eax, not 0xFFF
stdcall map_page, [tmp_task_ptab], eax, PG_SW
stdcall destroy_page_table, [tmp_task_ptab]
mov eax, [esi]
call free_page
.next:
add esi, 4
dec edi
jnz .destroy
call kernel_free ;ecx still in stack
stdcall map_page, [tmp_task_ptab], 0, PG_UNMAP
; mov ecx, pg_data.mutex
; call mutex_unlock
.exit:
ret
align 4
get_pid:
mov eax, [TASK_BASE]
mov eax, [eax+TASKDATA.pid]
ret
pid_to_slot:
;Input:
; eax - pid of process
;Output:
; eax - slot of process or 0 if process don't exists
;Search process by PID.
push ebx
push ecx
mov ebx, [TASK_COUNT]
shl ebx, 5
mov ecx, 2*32
.loop:
;ecx=offset of current process info entry
;ebx=maximum permitted offset
cmp byte [CURRENT_TASK+ecx+0xa], 9
jz .endloop ;skip empty slots
cmp [CURRENT_TASK+ecx+0x4], eax;check PID
jz .pid_found
.endloop:
add ecx, 32
cmp ecx, ebx
jle .loop
pop ecx
pop ebx
xor eax, eax
ret
.pid_found:
shr ecx, 5
mov eax, ecx ;convert offset to index of slot
pop ecx
pop ebx
ret
check_region:
;input:
; esi - start of buffer
; edx - size of buffer
;result:
; eax = 1 region lays in app memory
; eax = 0 region don't lays in app memory
mov eax, 1
ret
if 0
mov eax, [CURRENT_TASK]
; jmp check_process_region
;-----------------------------------------------------------------------------
;check_process_region:
;input:
; eax - slot
; esi - start of buffer
; edx - size of buffer
;result:
; eax = 1 region lays in app memory
; eax = 0 region don't lays in app memory
test edx, edx
jle .ok
shl eax, 5
cmp word [CURRENT_TASK+eax+0xa], 0
jnz .failed
shl eax, 3
mov eax, [SLOT_BASE+eax+0xb8]
test eax, eax
jz .failed
mov eax, 1
ret
.ok:
mov eax, 1
ret
.failed:
xor eax, eax
ret
end if
align 4
proc read_process_memory
;Input:
; eax - process slot
; ecx - buffer address
; edx - buffer size
; esi - start address in other process
;Output:
; eax - number of bytes read.
locals
slot dd ?
buff dd ?
r_count dd ?
offset dd ?
tmp_r_cnt dd ?
endl
mov [slot], eax
mov [buff], ecx
and [r_count], 0
mov [tmp_r_cnt], edx
mov [offset], esi
pushad
.read_mem:
mov edx, [offset]
mov ebx, [tmp_r_cnt]
mov ecx, 0x400000
and edx, 0x3FFFFF
sub ecx, edx
cmp ecx, ebx
jbe @f
mov ecx, ebx
@@:
cmp ecx, 0x8000
jna @F
mov ecx, 0x8000
@@:
mov ebx, [offset]
push ecx
stdcall map_memEx, [proc_mem_map], \
[slot], ebx, ecx, PG_MAP
pop ecx
mov esi, [offset]
and esi, 0xfff
sub eax, esi
jbe .ret
cmp ecx, eax
jbe @f
mov ecx, eax
mov [tmp_r_cnt], eax
@@:
add esi, [proc_mem_map]
mov edi, [buff]
mov edx, ecx
rep movsb
add [r_count], edx
add [offset], edx
sub [tmp_r_cnt], edx
jnz .read_mem
.ret:
popad
mov eax, [r_count]
ret
endp
align 4
proc write_process_memory
;Input:
; eax - process slot
; ecx - buffer address
; edx - buffer size
; esi - start address in other process
;Output:
; eax - number of bytes written
locals
slot dd ?
buff dd ?
w_count dd ?
offset dd ?
tmp_w_cnt dd ?
endl
mov [slot], eax
mov [buff], ecx
and [w_count], 0
mov [tmp_w_cnt], edx
mov [offset], esi
pushad
.read_mem:
mov edx, [offset]
mov ebx, [tmp_w_cnt]
mov ecx, 0x400000
and edx, 0x3FFFFF
sub ecx, edx
cmp ecx, ebx
jbe @f
mov ecx, ebx
@@:
cmp ecx, 0x8000
jna @F
mov ecx, 0x8000
@@:
mov ebx, [offset]
; add ebx, new_app_base
push ecx
stdcall map_memEx, [proc_mem_map], \
[slot], ebx, ecx, PG_SW
pop ecx
mov edi, [offset]
and edi, 0xfff
sub eax, edi
jbe .ret
cmp ecx, eax
jbe @f
mov ecx, eax
mov [tmp_w_cnt], eax
@@:
add edi, [proc_mem_map]
mov esi, [buff]
mov edx, ecx
rep movsb
add [w_count], edx
add [offset], edx
sub [tmp_w_cnt], edx
jnz .read_mem
.ret:
popad
mov eax, [w_count]
ret
endp
;ebx = 1 - kernel thread
;ecx=thread entry point
;edx=thread stack pointer
;creation flags 0x01 - debugged
; 0x02 - kernel
align 4
proc new_sys_threads
locals
slot dd ?
flags dd ?
app_cmdline dd ? ;0x00
app_path dd ? ;0x04
app_eip dd ? ;0x08
app_esp dd ? ;0x0C
app_mem dd ? ;0x10
endl
shl ebx, 1
mov [flags], ebx
xor eax, eax
mov [app_eip], ecx
mov [app_cmdline], eax
mov [app_esp], edx
mov [app_path], eax
call lock_application_table
call alloc_thread_slot
test eax, eax
jz .failed
mov [slot], eax
mov esi, [current_slot]
mov ebx, esi ;ebx=esi - pointer to extended information about current thread
mov edi, eax
shl edi, 8
add edi, SLOT_BASE
mov edx, edi ;edx=edi - pointer to extended infomation about new thread
mov ecx, 256/4
xor eax, eax
cld
rep stosd ;clean extended information about new thread
mov esi, ebx
mov edi, edx
mov ecx, 11
rep movsb ;copy process name
mov eax, [ebx+APPDATA.process]
mov [edx+APPDATA.process], eax
lea ebx, [edx+APPDATA.list]
lea ecx, [eax+PROC.thr_list]
list_add_tail ebx, ecx ;add thread to process child's list
mov eax, [ebx+APPDATA.tls_base]
test eax, eax
jz @F
push edx
stdcall user_alloc, 4096
pop edx
test eax, eax
jz .failed1;eax=0
@@:
mov [edx+APPDATA.tls_base], eax
lea eax, [app_cmdline]
stdcall set_app_params , [slot], eax, dword 0, \
dword 0, [flags]
mov eax, [process_number] ;set result
call unlock_application_table
ret
.failed:
xor eax, eax
.failed1:
call unlock_application_table
dec eax ;-1
ret
endp
align 4
tls_app_entry:
call init_heap
stdcall user_alloc, 4096
mov edx, [current_slot]
mov [edx+APPDATA.tls_base], eax
mov [tls_data_l+2], ax
shr eax, 16
mov [tls_data_l+4], al
mov [tls_data_l+7], ah
mov dx, app_tls
mov fs, dx
popad
iretd
EFL_IF equ 0x0200
EFL_IOPL1 equ 0x1000
EFL_IOPL2 equ 0x2000
EFL_IOPL3 equ 0x3000
align 4
proc set_app_params stdcall,slot:dword, params:dword,\
cmd_line:dword, app_path:dword, flags:dword
locals
pl0_stack dd ?
endl
stdcall kernel_alloc, RING0_STACK_SIZE+512
mov [pl0_stack], eax
lea edi, [eax+RING0_STACK_SIZE]
mov eax, [slot]
mov ebx, eax
shl eax, 8
mov [eax+SLOT_BASE+APPDATA.fpu_state], edi
mov [eax+SLOT_BASE+APPDATA.exc_handler], 0
mov [eax+SLOT_BASE+APPDATA.except_mask], 0
mov [eax+SLOT_BASE+APPDATA.terminate_protection], 80000001h
;set default io permission map
mov ecx, [SLOT_BASE+256+APPDATA.io_map]
mov [eax+SLOT_BASE+APPDATA.io_map], ecx
mov ecx, [SLOT_BASE+256+APPDATA.io_map+4]
mov [eax+SLOT_BASE+APPDATA.io_map+4], ecx
mov esi, fpu_data
mov ecx, 512/4
rep movsd
cmp ebx, [TASK_COUNT]
jle .noinc
inc dword [TASK_COUNT] ;update number of processes
.noinc:
shl ebx, 8
lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET]
mov [SLOT_BASE+APPDATA.fd_ev+ebx], edx
mov [SLOT_BASE+APPDATA.bk_ev+ebx], edx
add edx, APP_OBJ_OFFSET-APP_EV_OFFSET
mov [SLOT_BASE+APPDATA.fd_obj+ebx], edx
mov [SLOT_BASE+APPDATA.bk_obj+ebx], edx
mov ecx, [def_cursor]
mov [SLOT_BASE+APPDATA.cursor+ebx], ecx
mov eax, [pl0_stack]
mov [SLOT_BASE+APPDATA.pl0_stack+ebx], eax
add eax, RING0_STACK_SIZE
mov [SLOT_BASE+APPDATA.saved_esp0+ebx], eax
push ebx
stdcall kernel_alloc, 0x1000
pop ebx
mov esi, [current_slot]
mov esi, [esi+APPDATA.cur_dir]
mov ecx, 0x1000/4
mov edi, eax
mov [ebx+SLOT_BASE+APPDATA.cur_dir], eax
rep movsd
shr ebx, 3
mov eax, new_app_base
mov dword [CURRENT_TASK+ebx+0x10], eax
.add_command_line:
mov edx, [params]
mov edx, [edx] ;app_cmdline
test edx, edx
jz @f ;application doesn't need parameters
mov eax, edx
add eax, 256
jc @f
; cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8]
; ja @f
mov eax, [cmd_line]
cmp [edx], dword 0xffffffff ; extended destination tag
jne .no_ext_dest
mov edx, [edx+4] ; extended destination for cmdline
jmp .continue
.no_ext_dest:
mov [eax-12], dword 255
.continue:
mov byte [edx], 0 ;force empty string if no cmdline given
test eax, eax
jz @f
;--------------------------------------
cmp [eax-4], dword 0xffffffff ; cmdline_flag
jne .old_copy
push eax
stdcall strncpy, edx, [eax-8], [eax-12]
pop eax
stdcall kernel_free, [eax-8]
jmp @f
.old_copy:
;--------------------------------------
stdcall strncpy, edx, eax, 256
@@:
mov edx, [params]
mov edx, [edx+4];app_path
test edx, edx
jz @F ;application don't need path of file
mov eax, edx
add eax, 1024
jc @f
; cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8]
; ja @f
stdcall strncpy, edx, [app_path], 1024
@@:
mov ebx, [slot]
mov eax, ebx
shl ebx, 5
lea ecx, [draw_data+ebx];ecx - pointer to draw data
mov edx, irq0.return
cmp [ebx*8+SLOT_BASE+APPDATA.tls_base], -1
jne @F
mov edx, tls_app_entry
@@:
; set window state to 'normal' (non-minimized/maximized/rolled-up) state
mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL
mov [ebx+window_data+WDATA.fl_redraw], 1
add ebx, CURRENT_TASK ;ebx - pointer to information about process
mov [ebx+TASKDATA.wnd_number], al;set window number on screen = process slot
mov [ebx+TASKDATA.event_mask], dword 1+2+4;set default event flags (see 40 function)
inc dword [process_number]
mov eax, [process_number]
mov [ebx+4], eax ;set PID
;set draw data to full screen
xor eax, eax
mov [ecx+0], dword eax
mov [ecx+4], dword eax
mov eax, [Screen_Max_X]
mov [ecx+8], eax
mov eax, [Screen_Max_Y]
mov [ecx+12], eax
mov ebx, [pl0_stack]
mov esi, [params]
lea ecx, [ebx+REG_EIP]
xor eax, eax
mov [ebx+REG_RET], edx
mov [ebx+REG_EDI], eax
mov [ebx+REG_ESI], eax
mov [ebx+REG_EBP], eax
mov [ebx+REG_ESP], ecx;ebx+REG_EIP
mov [ebx+REG_EBX], eax
mov [ebx+REG_EDX], eax
mov [ebx+REG_ECX], eax
mov [ebx+REG_EAX], eax
mov eax, [esi+0x08] ;app_eip
mov [ebx+REG_EIP], eax ;app_entry
mov [ebx+REG_CS], dword app_code
mov ecx, USER_PRIORITY
test byte [flags], 2
jz @F
mov [ebx+REG_CS], dword os_code ; kernel thread
mov ecx, MAX_PRIORITY
@@:
mov [ebx+REG_EFLAGS], dword EFL_IOPL1+EFL_IF
mov eax, [esi+0x0C] ;app_esp
mov [ebx+REG_APP_ESP], eax;app_stack
mov [ebx+REG_SS], dword app_data
lea edx, [ebx+REG_RET]
mov ebx, [slot]
shl ebx, 5
mov [ebx*8+SLOT_BASE+APPDATA.saved_esp], edx
xor edx, edx; process state - running
; set if debuggee
test byte [flags], 1
jz .no_debug
inc edx ; process state - suspended
mov eax, [CURRENT_TASK]
mov [SLOT_BASE+ebx*8+APPDATA.debugger_slot], eax
.no_debug:
mov [CURRENT_TASK+ebx+TASKDATA.state], dl
lea edx, [SLOT_BASE+ebx*8]
call scheduler_add_thread
ret
endp
align 4
get_stack_base:
mov eax, [current_slot]
mov eax, [eax+APPDATA.pl0_stack]
ret
include "debug.inc"