forked from KolibriOS/kolibrios
Rustem Gimadutdinov (rgimad)
d4bf03befc
- rename event_mask in APPDATA to occured_events, cause TASKDATA already has event_mask and they have different meaning and usage - small fixes git-svn-id: svn://kolibrios.org@8867 a494cfbc-eb01-0410-851d-a64ba20cac60
1059 lines
27 KiB
PHP
1059 lines
27 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2021. All rights reserved. ;;
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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 = 0
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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_HDR
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cmdline rd 1 ;0x00
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path rd 1 ;0x04
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eip rd 1 ;0x08
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esp rd 1 ;0x0C
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_edata rd 1 ;0x10
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_emem rd 1 ;0x14
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img_base rd 1 ;0x18
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img_size rd 1
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filename_size rd 1
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cmdline_size rd 1
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path_string rd 1
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ends
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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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align 4
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_strnlen:
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mov edx, ecx
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xor eax, eax
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repne scasb
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jne @F
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inc ecx
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@@:
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mov eax, edx
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sub eax, ecx
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retn
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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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stdcall kernel_alloc, maxPathLength
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push eax ebx
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mov esi, ebp
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mov edi, eax
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xor eax, eax
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call getFullPath
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pop ecx ebx
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xor edx, edx
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proc fs_execute
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; edx = flags
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; ecx -> cmdline
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; ebx -> absolute file path
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; eax = string length
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locals
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cmdline rd 1
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flags rd 1
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slot rd 1 ; index of new thread slot
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slot_base rd 1 ; base address of it
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; app header data
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hdr_cmdline rd 1
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hdr_path rd 1
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hdr_eip rd 1
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hdr_esp rd 1
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hdr_edata rd 1
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hdr_emem rd 1
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file_base rd 1
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file_size rd 1
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filename_size rd 1
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cmdline_size rd 1
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path_string rd 1
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endl
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mov [flags], edx
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mov [cmdline], ecx
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mov [path_string], ebx
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mov [filename_size], eax
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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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stdcall load_file, ebx
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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 ; fill our app header data locals with values from header of given program (if its correct)
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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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call lock_application_table
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call alloc_thread_slot ; create a slot for new thread
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mov esi, -0x20 ; too many processes
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test eax, eax
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jz .err_0
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mov [slot], eax
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shl eax, 8
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lea edi, [SLOT_BASE+eax]
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mov [slot_base], edi
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; clean extended information about process
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mov ecx, sizeof.APPDATA/4
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xor eax, eax
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cld
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rep stosd
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; write application name ( APPDATA.appname )
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stdcall strrchr, [path_string], '/'
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lea esi, [eax+1] ; -> name without path
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mov ecx, 11
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mov edi, [slot_base]
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@@:
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call utf8to16
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call uni2ansi_char
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cmp al, '.'
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jz @f
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test al, al
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jz @f
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stosb
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loop @b
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@@:
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mov edi, [cmdline]
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xor eax, eax
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test edi, edi
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jz @f
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mov ecx, 65535
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call _strnlen
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cmp eax, 256
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jb @f
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; if cmdline length >= 256 then increase needed memory size by this length
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lea ebx, [eax+1]
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add [hdr_emem], ebx
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@@:
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mov [cmdline_size], eax
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stdcall create_process, [hdr_emem] ; create a new process
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mov esi, -30 ; no memory
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test eax, eax
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jz .err_hdr
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; add new process to the list
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mov ebx, [sys_proc+LHEAD.prev]
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__list_add eax, ebx, sys_proc
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; fill the structure fields:
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mov ebx, [hdr_emem]
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mov [eax+PROC.mem_used], ebx
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; write that main thread of app belongs to new process
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mov ebx, [slot_base]
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mov [ebx+APPDATA.process], eax
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; initialize the thread list of process: at this moment it consists only of one main thread
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lea edx, [ebx+APPDATA.list]
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lea ecx, [eax+PROC.thr_list]
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list_add_tail edx, ecx
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; allocate space and copy app header data locals and cmdline string there, put pointer to exec_params of new thread
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mov eax, [cmdline_size]
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add eax, sizeof.APP_HDR
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stdcall kernel_alloc, eax
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mov [ebx+APPDATA.exec_params], eax
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mov edi, eax
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lea esi, [hdr_cmdline]
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mov ecx, sizeof.APP_HDR/4
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rep movsd
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mov ecx, [cmdline_size]
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mov esi, [cmdline]
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rep movsb
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; set other parameters of application
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lea eax, [hdr_cmdline]
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stdcall set_app_params , [slot], eax, [flags]
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mov eax, [process_number] ; return process number
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call unlock_application_table
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ret
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.err_0:
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call unlock_application_table
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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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stdcall kernel_free, [path_string]
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mov eax, esi
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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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APP_HEADER_00 APP_HEADER_00_
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end virtual
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virtual at eax
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APP_HEADER_01 APP_HEADER_01_
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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+APP_HDR.eip], ecx
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mov edx, [APP_HEADER_00.mem_size]
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mov [ebx+APP_HDR._emem], edx
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shr edx, 1
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sub edx, 0x10
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mov [ebx+APP_HDR.esp], edx
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mov ecx, [APP_HEADER_00.i_param]
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mov [ebx+APP_HDR.cmdline], ecx
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mov [ebx+APP_HDR.path], 0
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mov edx, [APP_HEADER_00.i_end]
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mov [ebx+APP_HDR._edata], 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
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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+APP_HDR._emem], edx
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mov ecx, [APP_HEADER_01.stack_top]
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mov [ebx+APP_HDR.esp], ecx
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mov edx, [APP_HEADER_01.i_param]
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mov [ebx+APP_HDR.cmdline], edx
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mov ecx, [APP_HEADER_01.i_icon]
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mov [ebx+APP_HDR.path], ecx
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mov edx, [APP_HEADER_01.i_end]
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mov [ebx+APP_HDR._edata], 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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alloc_thread_slot:
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;input:
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; none
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;result:
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; eax=[new_thread_slot]<>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 [thread_count]!
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mov edx, thr_slot_map
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pushfd
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cli
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.l1:
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bsf eax, [edx]
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jnz .found
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add edx, 4
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cmp edx, thr_slot_map+32
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jb .l1
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popfd
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xor eax, eax
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ret
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.found:
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btr [edx], eax
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sub edx, thr_slot_map
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lea eax, [eax+edx*8]
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popfd
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ret
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align 4
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proc create_process stdcall, app_size:dword
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locals
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process dd ?
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app_tabs dd ?
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endl
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push ebx
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push esi
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push edi
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xor eax, eax
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mov [process], eax
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mov eax, [app_size]
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add eax, 0x3FFFFF
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shr eax, 22
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mov [app_tabs], eax
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stdcall kernel_alloc, 0x2000
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test eax, eax
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jz .fail
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mov [process], eax
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lea edi, [eax+PROC.heap_lock]
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mov ecx, (PROC.ht_free-PROC.heap_lock)/4
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list_init eax
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add eax, PROC.thr_list
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list_init eax
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xor eax, eax
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cld
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rep stosd
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mov [edi], dword (PROC.pdt_0 - PROC.htab)/4 - 3
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mov [edi+4], dword 3 ;reserve handles for stdin stdout and stderr
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mov ecx, (PROC.pdt_0 - PROC.htab)/4
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add edi, 8
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inc eax
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@@:
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stosd
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inc eax
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cmp eax, ecx
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jbe @B
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mov eax, edi
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call get_pg_addr
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mov [edi-4096+PROC.pdt_0_phys], eax
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mov ecx, (OS_BASE shr 20)/4
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xor eax, eax
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rep stosd
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mov ecx, (OS_BASE shr 20)/4
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mov esi, sys_proc+PROC.pdt_0+(OS_BASE shr 20)
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rep movsd
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mov eax, [edi-8192+PROC.pdt_0_phys]
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or eax, PG_SWR
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mov [edi-4096+(page_tabs shr 20)], eax
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lea edx, [edi-4096]
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mov esi, [app_tabs]
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.alloc_page_dir:
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call alloc_page
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test eax, eax
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jz .fail
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or eax, PG_UWR
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mov [edx], eax
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mov edi, [tmp_task_ptab]
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stdcall map_page, edi, eax, PG_SWR
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mov ecx, 1024
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xor eax, eax
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rep stosd
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add edx, 4
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dec esi
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jnz .alloc_page_dir
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stdcall map_page, [tmp_task_ptab], 0, PG_UNMAP
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mov eax, [process]
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pop edi
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pop esi
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pop ebx
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ret
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.fail:
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mov ecx, [process]
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jcxz @F
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call destroy_process
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@@:
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xor eax, eax
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pop edi
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pop esi
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pop ebx
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ret
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endp
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align 4
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proc destroy_page_table stdcall, pg_tab:dword
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push esi
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mov esi, [pg_tab]
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mov ecx, 1024
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.free:
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mov eax, [esi]
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test eax, 1
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jz .next
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test eax, 2
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jz .next
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test eax, 1 shl 9
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jnz .next ;skip shared pages
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call free_page
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.next:
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add esi, 4
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dec ecx
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jnz .free
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pop esi
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ret
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endp
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align 4
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destroy_process: ;fastcall ecx= ptr to process
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lea eax, [ecx+PROC.thr_list]
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cmp eax, [eax+LHEAD.next]
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jne .exit
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align 4
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.internal:
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push ecx
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mov esi, ecx
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list_del esi
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mov esi, [esi+PROC.dlls_list_ptr]
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call destroy_all_hdlls
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mov esi, [esp]
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add esi, PROC.pdt_0
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mov edi, (0x80000000 shr 20)/4
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.destroy:
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mov eax, [esi]
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test eax, 1
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jz .next
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and eax, not 0xFFF
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stdcall map_page, [tmp_task_ptab], eax, PG_SWR
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stdcall destroy_page_table, [tmp_task_ptab]
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mov eax, [esi]
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call free_page
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.next:
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add esi, 4
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dec edi
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jnz .destroy
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call kernel_free ;ecx still in stack
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stdcall map_page, [tmp_task_ptab], 0, PG_UNMAP
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.exit:
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ret
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align 4
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get_pid:
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mov eax, [TASK_BASE]
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mov eax, [eax+TASKDATA.pid]
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ret
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pid_to_slot:
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;Input:
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; eax - pid of process
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;Output:
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; eax - slot of process or 0 if process don't exists
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;Search process by PID.
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push ebx
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push ecx
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mov ebx, [thread_count]
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shl ebx, BSF sizeof.TASKDATA ; multiply by size
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; add 2*32 cause:
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; [TASK_TABLE; TASK_TABLE + 32) isnt a task actually
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; skip first process in the task table
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mov ecx, 2*32
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.loop:
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;ecx = offset of current process info entry
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;ebx = maximum permitted offset
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; state 9 means "not used"
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cmp byte [TASK_TABLE+ecx+TASKDATA.state], 9
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jz .endloop ;skip empty slots
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cmp [TASK_TABLE+ecx+TASKDATA.pid], eax;check PID
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jz .pid_found
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.endloop:
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add ecx, 32
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cmp ecx, ebx
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jle .loop
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pop ecx
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pop ebx
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xor eax, eax
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ret
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.pid_found:
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shr ecx, BSF sizeof.TASKDATA ; divide by size
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mov eax, ecx ;convert offset to index of slot
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pop ecx
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pop ebx
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ret
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align 4
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proc read_process_memory
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;Input:
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; eax - process slot
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; ecx - buffer address
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; edx - buffer size
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; esi - start address in other process
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;Output:
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; eax - number of bytes read.
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locals
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slot dd ?
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buff dd ?
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r_count dd ?
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offset dd ?
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tmp_r_cnt dd ?
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endl
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mov [slot], eax
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mov [buff], ecx
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and [r_count], 0
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mov [tmp_r_cnt], edx
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mov [offset], esi
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pushad
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.read_mem:
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mov edx, [offset]
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mov ebx, [tmp_r_cnt]
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mov ecx, 0x400000
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and edx, 0x3FFFFF
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sub ecx, edx
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cmp ecx, ebx
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jbe @f
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mov ecx, ebx
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@@:
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cmp ecx, 0x8000
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jna @F
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mov ecx, 0x8000
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@@:
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mov ebx, [offset]
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|
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push ecx
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stdcall map_memEx, [proc_mem_map], \
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[slot], ebx, ecx, PG_READ
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pop ecx
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mov esi, [offset]
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and esi, 0xfff
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sub eax, esi
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jbe .ret
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cmp ecx, eax
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jbe @f
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mov ecx, eax
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mov [tmp_r_cnt], eax
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@@:
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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]
|
|
push ecx
|
|
stdcall map_memEx, [proc_mem_map], \
|
|
[slot], ebx, ecx, PG_SWR
|
|
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, sizeof.APPDATA/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.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
|
|
|
|
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
|
|
|
|
lea eax, [app_cmdline]
|
|
stdcall set_app_params , [slot], eax, [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
|
|
|
|
proc map_process_image stdcall, img_size:dword, file_base:dword, file_size:dword
|
|
|
|
mov edx, [img_size]
|
|
mov esi, [file_base]
|
|
mov ecx, [file_size]
|
|
add edx, 4095
|
|
add ecx, 4095
|
|
shr edx, 12 ; total pages
|
|
shr ecx, 12 ; image pages
|
|
|
|
mov edi, page_tabs
|
|
shr esi, 10
|
|
add esi, edi
|
|
|
|
.map_image:
|
|
lodsd
|
|
and eax, -4096
|
|
or eax, PG_UWR
|
|
stosd
|
|
dec edx
|
|
loop .map_image
|
|
|
|
test edx, edx
|
|
jz .done
|
|
.map_bss:
|
|
call alloc_page
|
|
test eax, eax
|
|
jz .fail
|
|
|
|
or eax, PG_UWR
|
|
stosd
|
|
dec edx
|
|
jnz .map_bss
|
|
|
|
mov edi, [file_size]
|
|
mov ecx, [img_size]
|
|
add edi, 4095
|
|
and edi, -4096
|
|
add ecx, 4095
|
|
and ecx, -4096
|
|
sub ecx, edi
|
|
shr ecx, 2
|
|
xor eax, eax
|
|
rep stosd
|
|
.done:
|
|
.fail:
|
|
ret
|
|
endp
|
|
|
|
align 4
|
|
common_app_entry:
|
|
mov ebp, [current_slot]
|
|
mov ebp, [ebp+APPDATA.exec_params]
|
|
test ebp, ebp
|
|
jz .exit
|
|
; APPDATA.exec_params have first thread only,
|
|
; so second and next threads don't get here (they jump to .exit)
|
|
stdcall map_process_image, [ebp+APP_HDR._emem],\
|
|
[ebp+APP_HDR.img_base], [ebp+APP_HDR.img_size]
|
|
mov esi, [ebp+APP_HDR.path_string]
|
|
mov edi, [ebp+APP_HDR.path]
|
|
mov ecx, [ebp+APP_HDR.filename_size]
|
|
cmp ecx, 1023
|
|
jc @f
|
|
mov ecx, 1022
|
|
@@:
|
|
push esi
|
|
test edi, edi
|
|
jz @f
|
|
stdcall is_region_userspace, edi, [ebp+APP_HDR.filename_size]
|
|
jz @f
|
|
mov al, '/'
|
|
stosb
|
|
rep movsb
|
|
mov byte [edi], 0
|
|
@@:
|
|
call kernel_free
|
|
mov edi, [ebp+APP_HDR.cmdline]
|
|
test edi, edi
|
|
jz .check_tls_header
|
|
lea esi, [ebp+sizeof.APP_HDR]
|
|
mov ecx, [ebp+APP_HDR.cmdline_size]
|
|
cmp ecx, 256
|
|
jb .copy_cmdline
|
|
mov edi, [ebp+APP_HDR._emem]
|
|
add edi, 4095
|
|
and edi, -4096
|
|
sub edi, ecx
|
|
dec edi
|
|
cmp word [6], '00'
|
|
jne @f
|
|
mov [APP_HEADER_00_.i_param], edi
|
|
jmp .copy_cmdline
|
|
@@:
|
|
mov [APP_HEADER_01_.i_param], edi
|
|
.copy_cmdline:
|
|
inc ecx ; keep in mind about 0 in the end
|
|
stdcall is_region_userspace, edi, ecx
|
|
jz .check_tls_header
|
|
dec ecx
|
|
rep movsb
|
|
mov byte [edi], 0
|
|
.check_tls_header:
|
|
cmp word [6], '02'
|
|
jne .try_load_dll ;.cleanup
|
|
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
|
|
; { Patch by Coldy, For DLL autoload
|
|
.try_load_dll:
|
|
; Test app header version
|
|
mov ecx, dword[ebp+APP_HDR.img_base]
|
|
cmp dword[ecx+8], 2
|
|
jne .cleanup
|
|
;if APP_HEADER.version = 2 => load lib/dll.obj & change eip to APP_STARTUP_THUNK
|
|
DEBUGF 1, 'K : App header version 2\n'
|
|
stdcall load_library, dll_lib_path, 0
|
|
cmp eax, 0
|
|
jne @f
|
|
; Something went wrong (TODO: Next 2 line is code copy after .cleanup)
|
|
stdcall free_kernel_space, [ebp+APP_HDR.img_base]
|
|
stdcall kernel_free, ebp
|
|
DEBUGF 1, 'K : DLL.OBJ not found! Terminate application!\n'
|
|
mov ebx, dll_error_msg
|
|
mov ebp, notifyapp
|
|
call fs_execute_from_sysdir_param
|
|
; Terminate process (TODO: Need jump to .cleanup after sys_end ?)
|
|
call sys_end
|
|
|
|
@@:
|
|
; Find APP_STARTUP_THUNK in DLL.OBJ
|
|
sub eax, 4
|
|
mov eax, [eax]
|
|
|
|
;.change_eip:
|
|
mov ecx, [current_slot]
|
|
mov ecx, [ecx+APPDATA.pl0_stack]
|
|
mov [ecx+REG_EIP], eax
|
|
|
|
; } End patch by Coldy, For DLL autoload
|
|
.cleanup:
|
|
stdcall free_kernel_space, [ebp+APP_HDR.img_base]
|
|
stdcall kernel_free, ebp
|
|
mov ebx, [current_slot]
|
|
cmp [ebx+APPDATA.debugger_slot], 0
|
|
je .exit
|
|
mov eax, [TASK_BASE]
|
|
mov [eax+TASKDATA.state], 1
|
|
call change_task
|
|
.exit:
|
|
popad
|
|
iretd
|
|
|
|
EFL_IF = 0x0200
|
|
EFL_IOPL1 = 0x1000
|
|
EFL_IOPL2 = 0x2000
|
|
EFL_IOPL3 = 0x3000
|
|
|
|
align 4
|
|
proc set_app_params stdcall,slot:dword, params:dword, flags:dword
|
|
|
|
locals
|
|
pl0_stack dd ?
|
|
endl
|
|
|
|
mov eax, [xsave_area_size]
|
|
add eax, RING0_STACK_SIZE
|
|
stdcall kernel_alloc, eax
|
|
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+sizeof.APPDATA+APPDATA.io_map]
|
|
mov [eax+SLOT_BASE+APPDATA.io_map], ecx
|
|
mov ecx, [SLOT_BASE+sizeof.APPDATA+APPDATA.io_map+4]
|
|
mov [eax+SLOT_BASE+APPDATA.io_map+4], ecx
|
|
|
|
mov esi, fpu_data
|
|
mov ecx, [xsave_area_size]
|
|
add ecx, 3
|
|
shr ecx, 2
|
|
rep movsd
|
|
|
|
cmp [thread_count], ebx
|
|
adc [thread_count], 0 ; update number of processes
|
|
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, maxPathLength
|
|
pop ebx
|
|
mov esi, [current_slot]
|
|
mov esi, [esi+APPDATA.cur_dir]
|
|
mov ecx, maxPathLength/4
|
|
mov edi, eax
|
|
mov [ebx+SLOT_BASE+APPDATA.cur_dir], eax
|
|
rep movsd
|
|
|
|
shr ebx, 3
|
|
mov dword [CURRENT_TASK+ebx+0x10], 0
|
|
|
|
mov ebx, [slot]
|
|
mov eax, ebx
|
|
shl ebx, 5
|
|
lea ecx, [draw_data+ebx];ecx - pointer to draw data
|
|
|
|
; 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_workarea.right]
|
|
mov [ecx+8], eax
|
|
mov eax, [screen_workarea.bottom]
|
|
mov [ecx+12], eax
|
|
|
|
mov ebx, [pl0_stack]
|
|
mov esi, [params]
|
|
lea ecx, [ebx+REG_EIP]
|
|
xor eax, eax
|
|
|
|
mov [ebx+REG_RET], dword common_app_entry
|
|
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+APP_HDR.eip]
|
|
mov [ebx+REG_EIP], eax
|
|
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+APP_HDR.esp]
|
|
mov [ebx+REG_APP_ESP], eax
|
|
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
|
|
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"
|