850 lines
18 KiB
PHP
850 lines
18 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; MenuetOS process management, protected ring3 ;;
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;; ;;
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;; Distributed under GPL. See file COPYING for details. ;;
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;; Copyright 2003 Ville Turjanmaa ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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align 4
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idtreg:
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dw 8*0x41-1
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dd idts+8
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build_process_gdt_tss_pointer:
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mov ecx,tss_data
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mov edi,0
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setgdtl2:
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mov [edi+gdts+ tss0 +0], word tss_step
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mov [edi+gdts+ tss0 +2], cx
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mov eax,ecx
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shr eax,16
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mov [edi+gdts+ tss0 +4], al
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mov [edi+gdts+ tss0 +7], ah
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mov [edi+gdts+ tss0 +5], word 01010000b *256 +11101001b
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add ecx,tss_step
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add edi,8
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cmp edi,8*(max_processes+5)
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jbe setgdtl2
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ret
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build_interrupt_table:
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mov edi, idts+8
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mov esi, sys_int
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mov ecx, 0x40
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@@:
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mov eax, [esi]
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mov [edi], ax ; lower part of offset
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mov [edi+2], word os_code ; segment selector
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shr eax, 16
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mov [edi+4], word 10001110b shl 8 ; interrupt descriptor
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mov [edi+6], ax
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add esi, 4
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add edi, 8
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dec ecx
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jnz @b
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;mov edi,8*0x40+idts+8
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mov [edi + 0], word (i40 and ((1 shl 16)-1))
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mov [edi + 2], word os_code
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mov [edi + 4], word 11101110b*256
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mov [edi + 6], word (i40 shr 16)
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ret
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iglobal
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sys_int:
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dd e0,debug_exc,e2,e3
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dd e4,e5,e6,e7
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dd e8,e9,e10,e11
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dd e12,e13,page_fault_handler,e15
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dd except_16, e17,e18, except_19
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times 12 dd unknown_interrupt
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dd irq0 , irq_serv.irq_1, p_irq2 , p_irq3 ;irq_serv.irq_3
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dd irq_serv.irq_4 ,irq_serv.irq_5,p_irq6,irq_serv.irq_7
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dd irq_serv.irq_8, irq_serv.irq_9, irq_serv.irq_10
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dd irq_serv.irq_11,p_irq12,irqD ,p_irq14,p_irq15
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times 16 dd unknown_interrupt
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dd i40
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endg
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macro save_ring3_context
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{
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push ds es
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pushad
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}
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macro restore_ring3_context
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{
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popad
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pop es ds
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}
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; simply return control to interrupted process
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unknown_interrupt:
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iret
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macro exc_wo_code [num]
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{
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forward
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e#num :
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save_ring3_context
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mov bl, num
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jmp exc_c
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}
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macro exc_w_code [num]
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{
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forward
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e#num :
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add esp, 4
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save_ring3_context
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mov bl, num
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jmp exc_c
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}
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exc_wo_code 0, 1, 2, 3, 4, 5, 6, 9, 15, 18
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exc_w_code 8, 10, 11, 12, 13, 14, 17
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exc_c:
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mov ax, os_data
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mov ds, ax
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mov es, ax
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; test if debugging
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cli
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mov eax, [CURRENT_TASK]
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shl eax, 8
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mov eax, [SLOT_BASE+eax+APPDATA.debugger_slot]
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test eax, eax
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jnz .debug
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sti
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; not debuggee => say error and terminate
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add esp, 28h
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movzx eax, bl
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mov [error_interrupt], eax
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call show_error_parameters
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mov edx, [TASK_BASE]
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mov [edx + TASKDATA.state], byte 4
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jmp change_task
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.debug:
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; we are debugged process, notify debugger and suspend ourself
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; eax=debugger PID
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cld
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movzx ecx, bl
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push ecx
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mov ecx, [TASK_BASE]
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push dword [ecx+TASKDATA.pid] ; PID of current process
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push 12
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pop ecx
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push 1 ; 1=exception
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call debugger_notify
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pop ecx
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pop ecx
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pop ecx
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mov edx, [TASK_BASE]
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mov byte [edx+TASKDATA.state], 1 ; suspended
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call change_task
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restore_ring3_context
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iretd
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writehex:
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pusha
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mov edi, [write_error_to]
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mov esi, 8
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@@:
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mov ecx, eax
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and ecx, 0xf
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mov cl,[ecx+hexletters]
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mov [edi],cl
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dec edi
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shr eax,4
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dec esi
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jnz @b
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popa
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ret
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iglobal
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hexletters db '0123456789ABCDEF'
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error_interrupt dd -1
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process_error db 'K : Process - forced terminate INT: 00000000',13,10,0
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process_pid db 'K : Process - forced terminate PID: 00000000',13,10,0
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process_eip db 'K : Process - forced terminate EIP: 00000000',13,10,0
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system_error db 'K : Kernel error',13,10,0
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endg
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uglobal
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write_error_to dd 0x0
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endg
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show_error_parameters:
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mov [write_error_to],process_pid+43
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mov eax,[CURRENT_TASK]
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shl eax, 5
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mov eax,[CURRENT_TASK+TASKDATA.pid+eax]
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call writehex
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mov [write_error_to],process_error+43
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mov eax,[error_interrupt]
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call writehex
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cmp dword [esp+4+4], os_code ; CS
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jnz @f
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mov esi,system_error
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call sys_msg_board_str
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@@:
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mov eax, [esp+4] ; EIP
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mov [write_error_to],process_eip+43
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call writehex
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mov esi,process_error
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call sys_msg_board_str
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mov esi,process_pid
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call sys_msg_board_str
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mov esi,process_eip
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call sys_msg_board_str
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ret
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; irq1 -> hid/keyboard.inc
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macro irqh [num]
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{
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forward
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p_irq#num :
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save_ring3_context
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mov edi, num
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jmp irq_c
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}
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irqh 2,5,7,8,9,10,11
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irq_c:
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mov ax, os_data
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mov ds, ax
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mov es, ax
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call irqhandler
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restore_ring3_context
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iret
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p_irq6:
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save_ring3_context
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mov ax, os_data
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mov ds, ax
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mov es, ax
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call fdc_irq
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call ready_for_next_irq
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restore_ring3_context
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iret
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p_irq3:
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save_ring3_context
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mov ax, os_data
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mov ds, ax
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mov es, ax
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cmp [com2_mouse_detected],0
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je old_irq3_handler
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call check_mouse_data_com2
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jmp p_irq3_1
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old_irq3_handler:
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mov edi,3
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call irqhandler
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p_irq3_1:
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restore_ring3_context
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iret
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p_irq4:
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save_ring3_context
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mov ax, os_data
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mov ds, ax
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mov es, ax
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cmp [com1_mouse_detected],0
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je old_irq4_handler
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call check_mouse_data_com1
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jmp p_irq4_1
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old_irq4_handler:
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mov edi,4
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call irqhandler
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p_irq4_1:
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restore_ring3_context
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iret
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p_irq12:
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save_ring3_context
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mov ax, os_data
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mov ds, ax
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mov es, ax
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call check_mouse_data_ps2
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restore_ring3_context
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iret
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p_irq14:
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save_ring3_context
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mov ax, os_data
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mov ds, ax
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mov es, ax
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call [irq14_func]
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call ready_for_next_irq_1
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restore_ring3_context
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iret
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p_irq15:
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save_ring3_context
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mov ax, os_data
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mov ds, ax
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mov es, ax
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call [irq15_func]
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call ready_for_next_irq_1
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restore_ring3_context
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iret
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ready_for_next_irq:
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mov [check_idle_semaphore],5
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mov al, 0x20
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out 0x20, al
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ret
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ready_for_next_irq_1:
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mov [check_idle_semaphore],5
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mov al, 0x20
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out 0xa0,al
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out 0x20, al
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ret
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irqD:
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save_ring3_context
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov dx,0xf0
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mov al,0
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out dx,al
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mov dx,0xa0
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mov al,0x20
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out dx,al
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mov dx,0x20
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out dx,al
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restore_ring3_context
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iret
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irqhandler:
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push edi
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mov esi,edi ; 1
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shl esi,6 ; 1
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add esi,irq00read ; 1
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shl edi,12 ; 1
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add edi,IRQ_SAVE
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mov ecx,16
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mov [check_idle_semaphore],5
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irqnewread:
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dec ecx
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js irqover
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mov dx,[esi] ; 2+
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cmp dx,0 ; 1
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jz irqover
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cmp [esi+3],byte 1 ; 2 ; byte read
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jne noirqbyte ; 4-11
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in al,dx
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mov edx,[edi]
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cmp edx,4000
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je irqfull
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mov ebx,edi
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add ebx,0x10
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add ebx,edx
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mov [ebx],al
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inc edx
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mov [edi],edx
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add esi,4
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jmp irqnewread
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noirqbyte:
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cmp [esi+3],byte 2 ; word read
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jne noirqword
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in ax,dx
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mov edx,[edi]
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cmp edx,4000
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je irqfull
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mov ebx,edi
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add ebx,0x10
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add ebx,edx
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mov [ebx],ax
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add edx,2
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mov [edi],edx
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add esi,4
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jmp irqnewread
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noirqword:
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irqfull:
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irqover:
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mov al,0x20 ; ready for next irq
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out 0x20,al
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pop ebx
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cmp ebx,7
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jbe noa0
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out 0xa0,al
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noa0:
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ret
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set_application_table_status:
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push eax
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mov eax,[CURRENT_TASK]
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shl eax, 5
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add eax,CURRENT_TASK+TASKDATA.pid
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mov eax,[eax]
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mov [application_table_status],eax
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pop eax
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ret
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clear_application_table_status:
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push eax
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mov eax,[CURRENT_TASK]
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shl eax, 5
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add eax,CURRENT_TASK+TASKDATA.pid
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mov eax,[eax]
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cmp eax,[application_table_status]
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jne apptsl1
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mov [application_table_status],0
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apptsl1:
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pop eax
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ret
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sys_resize_app_memory:
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; eax = 1 - resize
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; ebx = new amount of memory
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cmp eax,1
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jne .no_application_mem_resize
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stdcall new_mem_resize, ebx
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mov [esp+36], eax
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ret
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.no_application_mem_resize:
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ret
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sys_threads:
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; eax=1 create thread
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;
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; ebx=thread start
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; ecx=thread stack value
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;
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; on return : eax = pid
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jmp new_sys_threads
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iglobal
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process_terminating db 'K : Process - terminating',13,10,0
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process_terminated db 'K : Process - done',13,10,0
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msg_obj_destroy db 'K : destroy app object',13,10,0
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endg
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; param
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; esi= slot
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terminate: ; terminate application
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.slot equ esp ;locals
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push esi ;save .slot
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shl esi, 8
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cmp [SLOT_BASE+esi+APPDATA.dir_table], 0
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jne @F
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add esp, 4
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ret
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@@:
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mov esi,process_terminating
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call sys_msg_board_str
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@@:
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cli
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cmp [application_table_status],0
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je term9
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sti
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call change_task
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jmp @b
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term9:
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call set_application_table_status
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mov esi, [.slot]
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shl esi,8
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add esi, SLOT_BASE+APP_OBJ_OFFSET
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@@:
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mov eax, [esi+APPOBJ.fd]
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test eax, eax
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jz @F
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cmp eax, esi
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je @F
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push esi
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call [eax+APPOBJ.destroy]
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mov esi, msg_obj_destroy
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call sys_msg_board_str
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pop esi
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jmp @B
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@@:
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mov eax, [.slot]
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shl eax, 8
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mov eax,[SLOT_BASE+eax+APPDATA.dir_table]
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stdcall destroy_app_space, eax
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mov esi, [.slot]
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cmp [fpu_owner],esi ; if user fpu last -> fpu user = 1
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jne @F
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mov [fpu_owner],1
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mov eax, [256+SLOT_BASE+APPDATA.fpu_state]
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clts
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bt [cpu_caps], CAPS_SSE
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jnc .no_SSE
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fxrstor [eax]
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jmp @F
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.no_SSE:
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fnclex
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frstor [eax]
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@@:
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mov [KEY_COUNT],byte 0 ; empty keyboard buffer
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mov [BTN_COUNT],byte 0 ; empty button buffer
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; remove defined hotkeys
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mov eax, hotkey_list
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.loop:
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cmp [eax+8], esi
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jnz .cont
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mov ecx, [eax]
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jecxz @f
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push dword [eax+12]
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pop dword [ecx+12]
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@@:
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mov ecx, [eax+12]
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push dword [eax]
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pop dword [ecx]
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xor ecx, ecx
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mov [eax], ecx
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mov [eax+4], ecx
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mov [eax+8], ecx
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mov [eax+12], ecx
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.cont:
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add eax, 16
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cmp eax, hotkey_list+256*16
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jb .loop
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; remove hotkeys in buffer
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mov eax, hotkey_buffer
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.loop2:
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cmp [eax], esi
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jnz .cont2
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and dword [eax+4], 0
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and dword [eax], 0
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.cont2:
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add eax, 8
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cmp eax, hotkey_buffer+120*8
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jb .loop2
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mov ecx,esi ; remove buttons
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bnewba2:
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mov edi,[BTN_ADDR]
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mov eax,edi
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cld
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movzx ebx,word [edi]
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inc bx
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bnewba:
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dec bx
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jz bnmba
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add eax,0x10
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cmp cx,[eax]
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jnz bnewba
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pusha
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mov ecx,ebx
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inc ecx
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shl ecx,4
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mov ebx,eax
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add eax,0x10
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call memmove
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dec dword [edi]
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popa
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jmp bnewba2
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bnmba:
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pusha ; save window coordinates for window restoring
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cld
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shl esi,5
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add esi,window_data
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|
mov eax,[esi+WDATA.box.left]
|
|
mov [dlx],eax
|
|
add eax,[esi+WDATA.box.width]
|
|
mov [dlxe],eax
|
|
mov eax,[esi+WDATA.box.top]
|
|
mov [dly],eax
|
|
add eax,[esi+WDATA.box.height]
|
|
mov [dlye],eax
|
|
|
|
xor eax, eax
|
|
mov [esi+WDATA.box.left],eax
|
|
mov [esi+WDATA.box.width],eax
|
|
mov [esi+WDATA.box.top],eax
|
|
mov [esi+WDATA.box.height],eax
|
|
mov [esi+WDATA.cl_workarea],eax
|
|
mov [esi+WDATA.cl_titlebar],eax
|
|
mov [esi+WDATA.cl_frames],eax
|
|
mov dword [esi+WDATA.reserved],eax ; clear all flags: wstate, redraw, wdrawn
|
|
lea edi, [esi-window_data+draw_data]
|
|
mov ecx,32/4
|
|
rep stosd
|
|
popa
|
|
|
|
; debuggee test
|
|
pushad
|
|
mov edi, esi
|
|
shl edi, 5
|
|
mov eax, [SLOT_BASE+edi*8+APPDATA.debugger_slot]
|
|
test eax, eax
|
|
jz .nodebug
|
|
push 8
|
|
pop ecx
|
|
push dword [CURRENT_TASK+edi+TASKDATA.pid] ; PID
|
|
push 2
|
|
call debugger_notify
|
|
pop ecx
|
|
pop ecx
|
|
.nodebug:
|
|
popad
|
|
|
|
mov ebx, [.slot]
|
|
shl ebx, 8
|
|
mov ebx,[SLOT_BASE+ebx+APPDATA.pl0_stack]
|
|
|
|
stdcall kernel_free, ebx
|
|
|
|
mov edi, [.slot]
|
|
shl edi,8
|
|
add edi,SLOT_BASE
|
|
mov eax, 0x20202020
|
|
stosd
|
|
stosd
|
|
stosd
|
|
mov ecx,244/4
|
|
xor eax, eax
|
|
rep stosd
|
|
|
|
; activate window
|
|
movzx eax, word [WIN_STACK + esi*2]
|
|
cmp eax, [TASK_COUNT]
|
|
jne .dont_activate
|
|
pushad
|
|
.check_next_window:
|
|
dec eax
|
|
cmp eax, 1
|
|
jbe .nothing_to_activate
|
|
lea esi, [WIN_POS+eax*2]
|
|
movzx edi, word [esi] ; edi = process
|
|
shl edi, 5
|
|
cmp [CURRENT_TASK + edi + TASKDATA.state], byte 9 ; skip dead slots
|
|
je .check_next_window
|
|
add edi, window_data
|
|
; \begin{diamond}[19.09.2006]
|
|
; skip minimized windows
|
|
test [edi + WDATA.fl_wstate], WSTATE_MINIMIZED
|
|
jnz .check_next_window
|
|
; \end{diamond}
|
|
call waredraw
|
|
.nothing_to_activate:
|
|
popad
|
|
.dont_activate:
|
|
|
|
push esi ; remove hd1 & cd & flp reservation
|
|
shl esi, 5
|
|
mov esi, [esi+CURRENT_TASK+TASKDATA.pid]
|
|
cmp [hd1_status], esi
|
|
jnz @f
|
|
call free_hd_channel
|
|
mov [hd1_status], 0
|
|
@@:
|
|
cmp [cd_status], esi
|
|
jnz @f
|
|
call free_cd_channel
|
|
mov [cd_status], 0
|
|
@@:
|
|
cmp [flp_status], esi
|
|
jnz @f
|
|
mov [flp_status], 0
|
|
@@:
|
|
pop esi
|
|
|
|
pusha ; remove all irq reservations
|
|
mov eax,esi
|
|
shl eax, 5
|
|
mov eax,[eax+CURRENT_TASK+TASKDATA.pid]
|
|
mov edi,irq_owner
|
|
mov ecx,16
|
|
newirqfree:
|
|
scasd
|
|
jne nofreeirq
|
|
mov [edi-4],dword 0
|
|
nofreeirq:
|
|
loop newirqfree
|
|
popa
|
|
|
|
pusha ; remove all port reservations
|
|
mov edx,esi
|
|
shl edx, 5
|
|
add edx,CURRENT_TASK
|
|
mov edx,[edx+TASKDATA.pid]
|
|
|
|
rmpr0:
|
|
|
|
mov esi,[RESERVED_PORTS]
|
|
|
|
cmp esi,0
|
|
je rmpr9
|
|
|
|
rmpr3:
|
|
|
|
mov edi,esi
|
|
shl edi,4
|
|
add edi,RESERVED_PORTS
|
|
|
|
cmp edx,[edi]
|
|
je rmpr4
|
|
|
|
dec esi
|
|
jnz rmpr3
|
|
|
|
jmp rmpr9
|
|
|
|
rmpr4:
|
|
|
|
mov ecx,256
|
|
sub ecx,esi
|
|
shl ecx,4
|
|
|
|
mov esi,edi
|
|
add esi,16
|
|
cld
|
|
rep movsb
|
|
|
|
dec dword [RESERVED_PORTS]
|
|
|
|
jmp rmpr0
|
|
|
|
rmpr9:
|
|
|
|
popa
|
|
mov edi,esi ; do not run this process slot
|
|
shl edi, 5
|
|
mov [edi+CURRENT_TASK + TASKDATA.state],byte 9
|
|
; debugger test - terminate all debuggees
|
|
mov eax, 2
|
|
mov ecx, SLOT_BASE+2*0x100+APPDATA.debugger_slot
|
|
.xd0:
|
|
cmp eax, [TASK_COUNT]
|
|
ja .xd1
|
|
cmp dword [ecx], esi
|
|
jnz @f
|
|
and dword [ecx], 0
|
|
pushad
|
|
xchg eax, ebx
|
|
mov eax, 2
|
|
call sys_system
|
|
popad
|
|
@@:
|
|
inc eax
|
|
add ecx, 0x100
|
|
jmp .xd0
|
|
.xd1:
|
|
; call systest
|
|
sti ; .. and life goes on
|
|
|
|
mov eax, [dlx]
|
|
mov ebx, [dly]
|
|
mov ecx, [dlxe]
|
|
mov edx, [dlye]
|
|
call calculatescreen
|
|
xor eax, eax
|
|
xor esi, esi
|
|
call redrawscreen
|
|
|
|
mov [MOUSE_BACKGROUND],byte 0 ; no mouse background
|
|
mov [DONT_DRAW_MOUSE],byte 0 ; draw mouse
|
|
|
|
mov [application_table_status],0
|
|
mov esi,process_terminated
|
|
call sys_msg_board_str
|
|
add esp, 4
|
|
ret
|
|
restore .slot
|
|
|
|
iglobal
|
|
boot_sched_1 db 'Building gdt tss pointer',0
|
|
boot_sched_2 db 'Building IDT table',0
|
|
endg
|
|
|
|
|
|
build_scheduler:
|
|
|
|
mov esi,boot_sched_1
|
|
call boot_log
|
|
call build_process_gdt_tss_pointer
|
|
|
|
mov esi,boot_sched_2
|
|
call boot_log
|
|
call build_interrupt_table
|
|
|
|
ret
|
|
|