2011-10-14 23:38:50 +02:00
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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2012-03-13 17:51:57 +01:00
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;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;
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2011-10-14 23:38:50 +02:00
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision$
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GREEDY_KERNEL equ 0
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2012-02-23 19:52:13 +01:00
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struct APP_HEADER_00_
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banner dq ?
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version dd ? ;+8
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start dd ? ;+12
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i_end dd ? ;+16
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mem_size dd ? ;+20
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i_param dd ? ;+24
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ends
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struct APP_HEADER_01_
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banner dq ?
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version dd ? ;+8
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start dd ? ;+12
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i_end dd ? ;+16
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mem_size dd ? ;+20
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stack_top dd ? ;+24
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i_param dd ? ;+28
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i_icon dd ? ;+32
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ends
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struct APP_PARAMS
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app_cmdline dd ? ;0x00
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app_path dd ? ;0x04
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app_eip dd ? ;0x08
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app_esp dd ? ;0x0C
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app_mem dd ? ;0x10
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ends
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2011-10-14 23:38:50 +02:00
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macro _clear_ op
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{ mov ecx, op/4
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xor eax, eax
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cld
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rep stosd
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}
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fs_execute_from_sysdir:
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xor ebx, ebx
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fs_execute_from_sysdir_param:
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xor edx, edx
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mov esi, sysdir_path
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align 4
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proc fs_execute
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;fn_read:dword, file_size:dword, cluster:dword
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; ebx - cmdline
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; edx - flags
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; ebp - full filename
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; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it
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locals
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cmdline rd 64 ;256/4
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filename rd 256 ;1024/4
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flags dd ?
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save_cr3 dd ?
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slot dd ?
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slot_base dd ?
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file_base dd ?
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file_size dd ?
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2012-03-23 21:13:09 +01:00
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handle dd ? ;temp. for default cursor handle for curr. thread
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2011-10-14 23:38:50 +02:00
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;app header data
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hdr_cmdline dd ? ;0x00
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hdr_path dd ? ;0x04
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hdr_eip dd ? ;0x08
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hdr_esp dd ? ;0x0C
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hdr_mem dd ? ;0x10
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hdr_i_end dd ? ;0x14
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endl
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2012-03-22 23:09:59 +01:00
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pushad
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2012-03-23 21:13:09 +01:00
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pushad
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stdcall set_cursor, [def_cursor_clock]
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mov [handle], eax
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mov [redrawmouse_unconditional], 1
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call __sys_draw_pointer
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popad
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2011-10-14 23:38:50 +02:00
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mov [flags], edx
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; [ebp] pointer to filename
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lea edi, [filename]
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lea ecx, [edi+1024]
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mov al, '/'
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stosb
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@@:
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cmp edi, ecx
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jae .bigfilename
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lodsb
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stosb
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test al, al
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jnz @b
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mov esi, [ebp]
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test esi, esi
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jz .namecopied
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mov byte [edi-1], '/'
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@@:
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cmp edi, ecx
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jae .bigfilename
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lodsb
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stosb
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test al, al
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jnz @b
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jmp .namecopied
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.bigfilename:
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popad
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mov eax, -ERROR_FILE_NOT_FOUND
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2012-03-23 21:13:09 +01:00
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jmp .final
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2011-10-14 23:38:50 +02:00
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.namecopied:
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mov [cmdline], ebx
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test ebx, ebx
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jz @F
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lea eax, [cmdline]
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mov dword [eax+252], 0
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stdcall strncpy, eax, ebx, 255
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@@:
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lea eax, [filename]
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stdcall load_file, eax
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2012-03-22 20:12:53 +01:00
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2011-10-14 23:38:50 +02:00
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mov esi, -ERROR_FILE_NOT_FOUND
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test eax, eax
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jz .err_file
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mov [file_base], eax
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mov [file_size], ebx
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lea ebx, [hdr_cmdline]
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call test_app_header
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mov esi, -0x1F
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test eax, eax
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jz .err_hdr
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.wait_lock:
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cmp [application_table_status], 0
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je .get_lock
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call change_task
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jmp .wait_lock
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.get_lock:
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mov eax, 1
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xchg eax, [application_table_status]
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test eax, eax
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jnz .wait_lock
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call set_application_table_status
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call get_new_process_place
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test eax, eax
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mov esi, -0x20 ; too many processes
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jz .err
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mov [slot], eax
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shl eax, 8
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add eax, SLOT_BASE
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mov [slot_base], eax
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mov edi, eax
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_clear_ 256 ;clean extended information about process
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; write application name
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lea eax, [filename]
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stdcall strrchr, eax, '/' ; now eax points to name without path
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lea esi, [eax+1]
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test eax, eax
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jnz @F
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lea esi, [filename]
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@@:
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mov ecx, 8; 8 chars for name
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mov edi, [slot_base]
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.copy_process_name_loop:
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lodsb
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cmp al, '.'
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jz .copy_process_name_done
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test al, al
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jz .copy_process_name_done
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stosb
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loop .copy_process_name_loop
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.copy_process_name_done:
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mov ebx, cr3
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mov [save_cr3], ebx
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stdcall create_app_space, [hdr_mem], [file_base], [file_size]
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mov esi, -30; no memory
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test eax, eax
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jz .failed
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mov ebx, [slot_base]
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mov [ebx+APPDATA.dir_table], eax
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mov eax, [hdr_mem]
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mov [ebx+APPDATA.mem_size], eax
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xor edx, edx
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cmp word [6], '02'
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jne @f
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not edx
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@@:
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mov [ebx+APPDATA.tls_base], edx
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if GREEDY_KERNEL
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else
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mov ecx, [hdr_mem]
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mov edi, [file_size]
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add edi, 4095
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and edi, not 4095
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sub ecx, edi
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jna @F
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xor eax, eax
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cld
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rep stosb
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@@:
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end if
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; release only virtual space, not phisical memory
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stdcall free_kernel_space, [file_base]
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lea eax, [hdr_cmdline]
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lea ebx, [cmdline]
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lea ecx, [filename]
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stdcall set_app_params , [slot], eax, ebx, ecx, [flags]
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mov eax, [save_cr3]
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call set_cr3
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xor ebx, ebx
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mov [application_table_status], ebx;unlock application_table_status mutex
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mov eax, [process_number];set result
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2012-03-23 21:13:09 +01:00
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jmp .final
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2011-10-14 23:38:50 +02:00
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.failed:
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mov eax, [save_cr3]
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call set_cr3
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.err:
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.err_hdr:
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stdcall kernel_free, [file_base]
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.err_file:
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xor eax, eax
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mov [application_table_status], eax
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mov eax, esi
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2012-03-23 21:13:09 +01:00
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.final:
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pushad
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stdcall set_cursor, [handle]
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mov [redrawmouse_unconditional], 1
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call __sys_draw_pointer
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popad
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2011-10-14 23:38:50 +02:00
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ret
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endp
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align 4
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test_app_header:
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virtual at eax
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2012-02-23 19:52:13 +01:00
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APP_HEADER_00 APP_HEADER_00_
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2011-10-14 23:38:50 +02:00
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end virtual
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virtual at eax
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2012-02-23 19:52:13 +01:00
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APP_HEADER_01 APP_HEADER_01_
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2011-10-14 23:38:50 +02:00
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end virtual
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cmp dword [eax], 'MENU'
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jne .fail
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cmp word [eax+4], 'ET'
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jne .fail
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cmp [eax+6], word '00'
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jne .check_01_header
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mov ecx, [APP_HEADER_00.start]
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mov [ebx+0x08], ecx ;app_eip
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mov edx, [APP_HEADER_00.mem_size]
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mov [ebx+0x10], edx ;app_mem
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shr edx, 1
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sub edx, 0x10
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mov [ebx+0x0C], edx ;app_esp
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mov ecx, [APP_HEADER_00.i_param]
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mov [ebx], ecx ;app_cmdline
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mov [ebx+4], dword 0 ;app_path
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mov edx, [APP_HEADER_00.i_end]
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mov [ebx+0x14], edx
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ret
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.check_01_header:
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cmp [eax+6], word '01'
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je @f
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cmp [eax+6], word '02'
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jne .fail
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@@:
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mov ecx, [APP_HEADER_01.start]
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mov [ebx+0x08], ecx ;app_eip
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mov edx, [APP_HEADER_01.mem_size]
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; \begin{diamond}[20.08.2006]
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; sanity check (functions 19,58 load app_i_end bytes and that must
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; fit in allocated memory to prevent kernel faults)
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cmp edx, [APP_HEADER_01.i_end]
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jb .fail
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; \end{diamond}[20.08.2006]
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mov [ebx+0x10], edx ;app_mem
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mov ecx, [APP_HEADER_01.stack_top]
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mov [ebx+0x0C], ecx ;app_esp
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mov edx, [APP_HEADER_01.i_param]
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mov [ebx], edx ;app_cmdline
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mov ecx, [APP_HEADER_01.i_icon]
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mov [ebx+4], ecx ;app_path
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mov edx, [APP_HEADER_01.i_end]
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mov [ebx+0x14], edx
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ret
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.fail:
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xor eax, eax
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ret
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align 4
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proc get_new_process_place
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;input:
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; none
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;result:
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; eax=[new_process_place]<>0 - ok
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; 0 - failed.
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;This function find least empty slot.
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;It doesn't increase [TASK_COUNT]!
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mov eax, CURRENT_TASK
|
|
|
|
|
mov ebx, [TASK_COUNT]
|
|
|
|
|
inc ebx
|
|
|
|
|
shl ebx, 5
|
|
|
|
|
add ebx, eax ;ebx - address of process information for (last+1) slot
|
|
|
|
|
.newprocessplace:
|
|
|
|
|
;eax = address of process information for current slot
|
|
|
|
|
cmp eax, ebx
|
|
|
|
|
jz .endnewprocessplace ;empty slot after high boundary
|
|
|
|
|
add eax, 0x20
|
|
|
|
|
cmp word [eax+0xa], 9;check process state, 9 means that process slot is empty
|
|
|
|
|
jnz .newprocessplace
|
|
|
|
|
.endnewprocessplace:
|
|
|
|
|
mov ebx, eax
|
|
|
|
|
sub eax, CURRENT_TASK
|
|
|
|
|
shr eax, 5 ;calculate slot index
|
|
|
|
|
cmp eax, 256
|
|
|
|
|
jge .failed ;it should be <256
|
|
|
|
|
mov word [ebx+0xa], 9;set process state to 9 (for slot after hight boundary)
|
|
|
|
|
ret
|
|
|
|
|
.failed:
|
|
|
|
|
xor eax, eax
|
|
|
|
|
ret
|
|
|
|
|
endp
|
|
|
|
|
|
|
|
|
|
align 4
|
|
|
|
|
proc create_app_space stdcall, app_size:dword,img_base:dword,img_size:dword
|
|
|
|
|
locals
|
|
|
|
|
app_pages dd ?
|
|
|
|
|
img_pages dd ?
|
|
|
|
|
dir_addr dd ?
|
|
|
|
|
app_tabs dd ?
|
|
|
|
|
endl
|
|
|
|
|
|
|
|
|
|
mov ecx, pg_data.mutex
|
|
|
|
|
call mutex_lock
|
|
|
|
|
|
|
|
|
|
xor eax, eax
|
|
|
|
|
mov [dir_addr], 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
|
|
|
|
|
|
|
|
|
|
if GREEDY_KERNEL
|
|
|
|
|
lea eax, [ecx+ebx+2];only image size
|
|
|
|
|
else
|
|
|
|
|
lea eax, [eax+ebx+2];all requested memory
|
|
|
|
|
end if
|
|
|
|
|
cmp eax, [pg_data.pages_free]
|
|
|
|
|
ja .fail
|
|
|
|
|
|
|
|
|
|
call alloc_page
|
|
|
|
|
test eax, eax
|
|
|
|
|
jz .fail
|
|
|
|
|
mov [dir_addr], eax
|
|
|
|
|
stdcall map_page, [tmp_task_pdir], eax, dword PG_SW
|
|
|
|
|
|
|
|
|
|
mov edi, [tmp_task_pdir]
|
|
|
|
|
mov ecx, (OS_BASE shr 20)/4
|
|
|
|
|
xor eax, eax
|
|
|
|
|
cld
|
|
|
|
|
rep stosd
|
|
|
|
|
|
|
|
|
|
mov ecx, (OS_BASE shr 20)/4
|
|
|
|
|
mov esi, sys_pgdir+(OS_BASE shr 20)
|
|
|
|
|
rep movsd
|
|
|
|
|
|
|
|
|
|
mov eax, [dir_addr]
|
|
|
|
|
or eax, PG_SW
|
|
|
|
|
mov [edi-4096+(page_tabs shr 20)], eax
|
|
|
|
|
|
|
|
|
|
and eax, -4096
|
|
|
|
|
call set_cr3
|
|
|
|
|
|
|
|
|
|
mov edx, [app_tabs]
|
|
|
|
|
mov edi, new_app_base
|
|
|
|
|
@@:
|
|
|
|
|
call alloc_page
|
|
|
|
|
test eax, eax
|
|
|
|
|
jz .fail
|
|
|
|
|
|
|
|
|
|
stdcall map_page_table, edi, eax
|
|
|
|
|
add edi, 0x00400000
|
|
|
|
|
dec edx
|
|
|
|
|
jnz @B
|
|
|
|
|
|
|
|
|
|
mov edi, new_app_base
|
|
|
|
|
shr edi, 10
|
|
|
|
|
add edi, page_tabs
|
|
|
|
|
|
|
|
|
|
mov ecx, [app_tabs]
|
|
|
|
|
shl ecx, 10
|
|
|
|
|
xor eax, eax
|
|
|
|
|
rep stosd
|
|
|
|
|
|
|
|
|
|
mov ecx, [img_pages]
|
|
|
|
|
mov ebx, PG_UW
|
|
|
|
|
mov edx, new_app_base
|
|
|
|
|
mov esi, [img_base]
|
|
|
|
|
mov edi, new_app_base
|
|
|
|
|
shr esi, 10
|
|
|
|
|
shr edi, 10
|
|
|
|
|
add esi, page_tabs
|
|
|
|
|
add edi, page_tabs
|
|
|
|
|
.remap:
|
|
|
|
|
lodsd
|
|
|
|
|
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
|
|
|
|
|
|
|
|
|
|
if GREEDY_KERNEL
|
|
|
|
|
mov eax, 0x02
|
|
|
|
|
rep stosd
|
|
|
|
|
else
|
|
|
|
|
|
|
|
|
|
.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
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
.done:
|
|
|
|
|
stdcall map_page, [tmp_task_pdir], dword 0, dword PG_UNMAP
|
|
|
|
|
|
|
|
|
|
mov ecx, pg_data.mutex
|
|
|
|
|
call mutex_unlock
|
|
|
|
|
mov eax, [dir_addr]
|
|
|
|
|
ret
|
|
|
|
|
.fail:
|
|
|
|
|
mov ecx, pg_data.mutex
|
|
|
|
|
call mutex_unlock
|
|
|
|
|
cmp [dir_addr], 0
|
|
|
|
|
je @f
|
|
|
|
|
stdcall destroy_app_space, [dir_addr], 0
|
|
|
|
|
@@:
|
|
|
|
|
xor eax, eax
|
|
|
|
|
ret
|
|
|
|
|
endp
|
|
|
|
|
|
|
|
|
|
align 4
|
|
|
|
|
set_cr3:
|
|
|
|
|
|
|
|
|
|
mov ebx, [current_slot]
|
|
|
|
|
mov [ebx+APPDATA.dir_table], eax
|
|
|
|
|
mov cr3, eax
|
|
|
|
|
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, 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
|
|
|
|
|
proc destroy_app_space stdcall, pg_dir:dword, dlls_list:dword
|
|
|
|
|
|
|
|
|
|
xor edx, edx
|
|
|
|
|
push edx
|
|
|
|
|
mov eax, 0x2
|
|
|
|
|
mov ebx, [pg_dir]
|
|
|
|
|
.loop:
|
|
|
|
|
;eax = current slot of process
|
|
|
|
|
mov ecx, eax
|
|
|
|
|
shl ecx, 5
|
|
|
|
|
cmp byte [CURRENT_TASK+ecx+0xa], 9;if process running?
|
|
|
|
|
jz @f ;skip empty slots
|
|
|
|
|
shl ecx, 3
|
|
|
|
|
add ecx, SLOT_BASE
|
|
|
|
|
cmp [ecx+APPDATA.dir_table], ebx;compare page directory addresses
|
|
|
|
|
jnz @f
|
|
|
|
|
mov [ebp-4], ecx
|
|
|
|
|
inc edx ;thread found
|
|
|
|
|
@@:
|
|
|
|
|
inc eax
|
|
|
|
|
cmp eax, [TASK_COUNT] ;exit loop if we look through all processes
|
|
|
|
|
jle .loop
|
|
|
|
|
|
|
|
|
|
;edx = number of threads
|
|
|
|
|
;our process is zombi so it isn't counted
|
|
|
|
|
pop ecx
|
|
|
|
|
cmp edx, 1
|
|
|
|
|
jg .ret
|
|
|
|
|
;if there isn't threads then clear memory.
|
|
|
|
|
mov esi, [dlls_list]
|
|
|
|
|
call destroy_all_hdlls;ecx=APPDATA
|
|
|
|
|
|
|
|
|
|
mov ecx, pg_data.mutex
|
|
|
|
|
call mutex_lock
|
|
|
|
|
|
|
|
|
|
mov eax, [pg_dir]
|
|
|
|
|
and eax, not 0xFFF
|
|
|
|
|
stdcall map_page, [tmp_task_pdir], eax, PG_SW
|
|
|
|
|
mov esi, [tmp_task_pdir]
|
|
|
|
|
mov edi, (OS_BASE 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
|
|
|
|
|
|
|
|
|
|
mov eax, [pg_dir]
|
|
|
|
|
call free_page
|
|
|
|
|
.exit:
|
|
|
|
|
stdcall map_page, [tmp_task_ptab], 0, PG_UNMAP
|
|
|
|
|
stdcall map_page, [tmp_task_pdir], 0, PG_UNMAP
|
|
|
|
|
mov ecx, pg_data.mutex
|
|
|
|
|
call mutex_unlock
|
|
|
|
|
.ret:
|
|
|
|
|
ret
|
|
|
|
|
endp
|
|
|
|
|
|
|
|
|
|
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, [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
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; call MEM_Get_Linear_Address
|
|
|
|
|
; push ebx
|
|
|
|
|
; push ecx
|
|
|
|
|
; push edx
|
|
|
|
|
; mov edx,ebx
|
|
|
|
|
; and edx,not (4096-1)
|
|
|
|
|
; sub ebx,edx
|
|
|
|
|
; add ecx,ebx
|
|
|
|
|
; mov ebx,edx
|
|
|
|
|
; add ecx,(4096-1)
|
|
|
|
|
; and ecx,not (4096-1)
|
|
|
|
|
;.loop:
|
|
|
|
|
;;eax - linear address of page directory
|
|
|
|
|
;;ebx - current page
|
|
|
|
|
;;ecx - current size
|
|
|
|
|
; mov edx,ebx
|
|
|
|
|
; shr edx,22
|
|
|
|
|
; mov edx,[eax+4*edx]
|
|
|
|
|
; and edx,not (4096-1)
|
|
|
|
|
; test edx,edx
|
|
|
|
|
; jz .failed1
|
|
|
|
|
; push eax
|
|
|
|
|
; mov eax,edx
|
|
|
|
|
; call MEM_Get_Linear_Address
|
|
|
|
|
; mov edx,ebx
|
|
|
|
|
; shr edx,12
|
|
|
|
|
; and edx,(1024-1)
|
|
|
|
|
; mov eax,[eax+4*edx]
|
|
|
|
|
; and eax,not (4096-1)
|
|
|
|
|
; test eax,eax
|
|
|
|
|
; pop eax
|
|
|
|
|
; jz .failed1
|
|
|
|
|
; add ebx,4096
|
|
|
|
|
; sub ecx,4096
|
|
|
|
|
; jg .loop
|
|
|
|
|
; pop edx
|
|
|
|
|
; pop ecx
|
|
|
|
|
; pop ebx
|
|
|
|
|
.ok:
|
|
|
|
|
mov eax, 1
|
|
|
|
|
ret
|
|
|
|
|
;
|
|
|
|
|
;.failed1:
|
|
|
|
|
; pop edx
|
|
|
|
|
; pop ecx
|
|
|
|
|
; pop ebx
|
|
|
|
|
.failed:
|
|
|
|
|
xor eax, eax
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
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
|
|
|
|
|
|
|
|
|
|
align 4
|
|
|
|
|
proc new_sys_threads
|
|
|
|
|
locals
|
|
|
|
|
slot dd ?
|
|
|
|
|
app_cmdline dd ? ;0x00
|
|
|
|
|
app_path dd ? ;0x04
|
|
|
|
|
app_eip dd ? ;0x08
|
|
|
|
|
app_esp dd ? ;0x0C
|
|
|
|
|
app_mem dd ? ;0x10
|
|
|
|
|
endl
|
|
|
|
|
|
|
|
|
|
cmp ebx, 1
|
|
|
|
|
jne .failed ;other subfunctions
|
|
|
|
|
|
|
|
|
|
xor eax, eax
|
|
|
|
|
mov [app_eip], ecx
|
|
|
|
|
mov [app_cmdline], eax
|
|
|
|
|
mov [app_esp], edx
|
|
|
|
|
mov [app_path], eax
|
|
|
|
|
;mov esi,new_process_loading
|
|
|
|
|
;call sys_msg_board_str
|
|
|
|
|
.wait_lock:
|
|
|
|
|
cmp [application_table_status], 0
|
|
|
|
|
je .get_lock
|
|
|
|
|
call change_task
|
|
|
|
|
jmp .wait_lock
|
|
|
|
|
|
|
|
|
|
.get_lock:
|
|
|
|
|
mov eax, 1
|
|
|
|
|
xchg eax, [application_table_status]
|
|
|
|
|
test eax, eax
|
|
|
|
|
jnz .wait_lock
|
|
|
|
|
|
|
|
|
|
call set_application_table_status
|
|
|
|
|
|
|
|
|
|
call get_new_process_place
|
|
|
|
|
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.heap_base]
|
|
|
|
|
mov [edx+APPDATA.heap_base], eax
|
|
|
|
|
|
|
|
|
|
mov ecx, [ebx+APPDATA.heap_top]
|
|
|
|
|
mov [edx+APPDATA.heap_top], ecx
|
|
|
|
|
|
|
|
|
|
mov eax, [ebx+APPDATA.mem_size]
|
|
|
|
|
mov [edx+APPDATA.mem_size], eax
|
|
|
|
|
|
|
|
|
|
mov ecx, [ebx+APPDATA.dir_table]
|
|
|
|
|
mov [edx+APPDATA.dir_table], ecx;copy page directory
|
|
|
|
|
|
|
|
|
|
mov eax, [ebx+APPDATA.dlls_list_ptr]
|
|
|
|
|
mov [edx+APPDATA.dlls_list_ptr], eax
|
|
|
|
|
|
|
|
|
|
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,dword 0
|
|
|
|
|
|
|
|
|
|
;mov esi,new_process_running
|
|
|
|
|
;call sys_msg_board_str ;output information about succefull startup
|
|
|
|
|
xor eax, eax
|
|
|
|
|
mov [application_table_status], eax ;unlock application_table_status mutex
|
|
|
|
|
mov eax, [process_number] ;set result
|
|
|
|
|
ret
|
|
|
|
|
.failed:
|
|
|
|
|
xor eax, eax
|
|
|
|
|
.failed1:
|
|
|
|
|
mov [application_table_status], eax
|
|
|
|
|
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
|
|
|
|
|
|
|
|
|
|
;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
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pop ebx
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mov esi, [current_slot]
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mov esi, [esi+APPDATA.cur_dir]
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mov ecx, 0x1000/4
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mov edi, eax
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mov [ebx+SLOT_BASE+APPDATA.cur_dir], eax
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rep movsd
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shr ebx, 3
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mov eax, new_app_base
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mov dword [CURRENT_TASK+ebx+0x10], eax
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.add_command_line:
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mov edx, [params]
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mov edx, [edx] ;app_cmdline
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test edx, edx
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jz @f ;application doesn't need parameters
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mov eax, edx
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add eax, 256
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jc @f
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cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8]
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ja @f
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mov byte [edx], 0 ;force empty string if no cmdline given
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mov eax, [cmd_line]
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test eax, eax
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jz @f
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stdcall strncpy, edx, eax, 256
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|
@@:
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|
mov edx, [params]
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mov edx, [edx+4];app_path
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test edx, edx
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jz @F ;application don't need path of file
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mov eax, edx
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add eax, 1024
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|
jc @f
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cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8]
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|
|
ja @f
|
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|
|
stdcall strncpy, edx, [app_path], 1024
|
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|
|
@@:
|
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|
|
mov ebx, [slot]
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|
mov eax, ebx
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|
|
shl ebx, 5
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|
|
lea ecx, [draw_data+ebx];ecx - pointer to draw data
|
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|
|
mov edx, irq0.return
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|
|
cmp [ebx*8+SLOT_BASE+APPDATA.tls_base], -1
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|
|
jne @F
|
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|
|
mov edx, tls_app_entry
|
|
|
|
|
@@:
|
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|
|
|
; set window state to 'normal' (non-minimized/maximized/rolled-up) state
|
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|
|
|
mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL
|
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|
|
|
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
|
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|
|
|
|
|
|
|
|
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 [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 ecx, [ebx+REG_RET]
|
|
|
|
|
mov ebx, [slot]
|
|
|
|
|
shl ebx, 5
|
|
|
|
|
mov [ebx*8+SLOT_BASE+APPDATA.saved_esp], ecx
|
|
|
|
|
|
|
|
|
|
xor ecx, ecx; process state - running
|
|
|
|
|
; set if debuggee
|
|
|
|
|
test byte [flags], 1
|
|
|
|
|
jz .no_debug
|
|
|
|
|
inc ecx ; process state - suspended
|
|
|
|
|
mov eax, [CURRENT_TASK]
|
|
|
|
|
mov [SLOT_BASE+ebx*8+APPDATA.debugger_slot], eax
|
|
|
|
|
.no_debug:
|
|
|
|
|
mov [CURRENT_TASK+ebx+TASKDATA.state], cl
|
|
|
|
|
;mov esi,new_process_running
|
|
|
|
|
;call sys_msg_board_str ;output information about succefull startup
|
|
|
|
|
ret
|
|
|
|
|
endp
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
align 4
|
|
|
|
|
|
|
|
|
|
get_stack_base:
|
|
|
|
|
mov eax, [current_slot]
|
|
|
|
|
mov eax, [eax+APPDATA.pl0_stack]
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
include "debug.inc"
|
