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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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5363 | yogev_ezra | 3 | ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; |
2288 | clevermous | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; ;; |
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7 | ;; MenuetOS process management, protected ring3 ;; |
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8 | ;; ;; |
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9 | ;; Distributed under GPL. See file COPYING for details. ;; |
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10 | ;; Copyright 2003 Ville Turjanmaa ;; |
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11 | ;; ;; |
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12 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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13 | |||
14 | $Revision: 5836 $ |
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15 | |||
16 | align 4 ;3A08 |
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17 | build_interrupt_table: |
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18 | mov edi, idts |
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19 | mov esi, sys_int |
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20 | mov ecx, 0x40 |
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21 | mov eax, (10001110b shl 24) + os_code |
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22 | @@: |
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23 | movsw ;low word of code-entry |
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24 | stosd ;interrupt gate type : os_code selector |
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25 | movsw ;high word of code-entry |
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26 | loop @b |
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27 | movsd ;copy low dword of trap gate for int 0x40 |
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28 | movsd ;copy high dword of trap gate for int 0x40 |
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29 | lidt [esi] |
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30 | ret |
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31 | |||
32 | iglobal |
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33 | align 4 |
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34 | sys_int: |
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35 | ;exception handlers addresses (for interrupt gate construction) |
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36 | dd e0,e1,e2,e3,e4,e5,e6,except_7 ; SEE: core/fpu.inc |
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37 | dd e8,e9,e10,e11,e12,e13,page_fault_exc,e15 |
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38 | dd e16, e17,e18, e19 |
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39 | times 12 dd unknown_interrupt ;int_20..int_31 |
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40 | |||
41 | ;interrupt handlers addresses (for interrupt gate construction) |
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42 | ; 0x20 .. 0x2F - IRQ handlers |
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43 | dd irq0, irq_serv.irq_1, irq_serv.irq_2 |
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44 | dd irq_serv.irq_3, irq_serv.irq_4 |
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45 | dd irq_serv.irq_5, irq_serv.irq_6, irq_serv.irq_7 |
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46 | dd irq_serv.irq_8, irq_serv.irq_9, irq_serv.irq_10 |
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47 | dd irq_serv.irq_11, irq_serv.irq_12, irqD, irq_serv.irq_14, irq_serv.irq_15 |
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48 | dd irq_serv.irq_16 |
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49 | dd irq_serv.irq_17 |
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50 | dd irq_serv.irq_18 |
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51 | dd irq_serv.irq_19 |
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52 | dd irq_serv.irq_20 |
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53 | dd irq_serv.irq_21 |
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54 | dd irq_serv.irq_22 |
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55 | dd irq_serv.irq_23 |
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56 | |||
57 | times 32 - IRQ_RESERVED dd unknown_interrupt |
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58 | ;int_0x40 gate trap (for directly copied) |
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59 | dw i40 and 0xFFFF, os_code, 11101111b shl 8, i40 shr 16 |
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60 | |||
61 | idtreg: ; data for LIDT instruction (!!! must be immediately below sys_int data) |
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62 | dw 2*($-sys_int-4)-1 |
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63 | dd idts ;0x8000B100 |
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3539 | clevermous | 64 | dw 0 ;просто выравнивание |
2288 | clevermous | 65 | |
66 | msg_fault_sel dd msg_exc_8,msg_exc_u,msg_exc_a,msg_exc_b |
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67 | dd msg_exc_c,msg_exc_d,msg_exc_e |
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68 | |||
69 | msg_exc_8 db "Double fault", 0 |
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70 | msg_exc_u db "Undefined Exception", 0 |
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71 | msg_exc_a db "Invalid TSS", 0 |
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72 | msg_exc_b db "Segment not present", 0 |
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73 | msg_exc_c db "Stack fault", 0 |
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74 | msg_exc_d db "General protection fault", 0 |
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75 | msg_exc_e db "Page fault", 0 |
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76 | |||
3342 | yogev_ezra | 77 | if lang eq sp |
3344 | yogev_ezra | 78 | include 'core/sys32-sp.inc' |
3342 | yogev_ezra | 79 | else |
80 | msg_sel_ker db "kernel", 0 |
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81 | msg_sel_app db "application", 0 |
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3309 | esevece | 82 | end if |
2288 | clevermous | 83 | |
84 | endg |
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85 | |||
86 | macro save_ring3_context { |
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87 | pushad |
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88 | } |
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89 | macro restore_ring3_context { |
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90 | popad |
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91 | } |
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92 | macro exc_wo_code [num] { |
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93 | e#num : |
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94 | save_ring3_context |
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95 | mov bl, num |
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96 | jmp exc_c |
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97 | } exc_wo_code 0,1,2,3,4,5,6,15,16,19 |
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98 | |||
99 | macro exc_w_code [num] { |
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100 | e#num : |
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101 | add esp, 4 |
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102 | save_ring3_context |
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103 | mov bl, num |
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104 | jmp exc_c |
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105 | } exc_w_code 8,9,10,11,12,13,17,18 |
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106 | |||
107 | |||
108 | uglobal |
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109 | pf_err_code dd ? |
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110 | endg |
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111 | |||
3539 | clevermous | 112 | page_fault_exc: ; дуракоусточивость: селекторы испорчены... |
113 | pop [ss:pf_err_code]; действительно до следующего #PF |
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2288 | clevermous | 114 | save_ring3_context |
115 | mov bl, 14 |
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116 | |||
3539 | clevermous | 117 | exc_c: ; исключения (все, кроме 7-го - #NM) |
118 | ; Фрэйм стека при исключении/прерывании из 3-го кольца + pushad (т.е., именно здесь) |
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2288 | clevermous | 119 | reg_ss equ esp+0x30 |
120 | reg_esp3 equ esp+0x2C |
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121 | reg_eflags equ esp+0x28 |
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122 | reg_cs3 equ esp+0x24 |
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123 | reg_eip equ esp+0x20 |
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3539 | clevermous | 124 | ; это фрэйм от pushad |
2288 | clevermous | 125 | reg_eax equ esp+0x1C |
126 | reg_ecx equ esp+0x18 |
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127 | reg_edx equ esp+0x14 |
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128 | reg_ebx equ esp+0x10 |
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129 | reg_esp0 equ esp+0x0C |
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130 | reg_ebp equ esp+0x08 |
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131 | reg_esi equ esp+0x04 |
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132 | reg_edi equ esp+0x00 |
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133 | |||
3539 | clevermous | 134 | mov ax, app_data ;исключение |
135 | mov ds, ax ;загрузим правильные значения |
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136 | mov es, ax ;в регистры |
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137 | cld ; и приводим DF к стандарту |
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2288 | clevermous | 138 | movzx ebx, bl |
139 | ; redirect to V86 manager? (EFLAGS & 0x20000) != 0? |
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140 | test byte[reg_eflags+2], 2 |
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141 | jnz v86_exc_c |
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142 | cmp bl, 14 ; #PF |
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143 | jne @f |
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144 | call page_fault_handler ; SEE: core/memory.inc |
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145 | @@: |
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146 | mov esi, [current_slot] |
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147 | btr [esi+APPDATA.except_mask], ebx |
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148 | jnc @f |
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149 | mov eax, [esi+APPDATA.exc_handler] |
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150 | test eax, eax |
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151 | jnz IRetToUserHook |
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152 | @@: |
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153 | cli |
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154 | mov eax, [esi+APPDATA.debugger_slot] |
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155 | test eax, eax |
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156 | jnz .debug |
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157 | sti |
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158 | ; not debuggee => say error and terminate |
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159 | call show_error_parameters ;; only ONE using, inline ??? |
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160 | ;mov edx, [TASK_BASE] |
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161 | mov [edx + TASKDATA.state], byte 4 ; terminate |
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3534 | clevermous | 162 | call wakeup_osloop |
3615 | clevermous | 163 | call change_task |
164 | ; If we're here, then the main OS thread has crashed before initializing IDLE thread. |
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165 | ; Or they both have crashed. Anyway, things are hopelessly broken. |
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166 | hlt |
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167 | jmp $-1 |
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2288 | clevermous | 168 | .debug: |
169 | ; we are debugged process, notify debugger and suspend ourself |
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170 | ; eax=debugger PID |
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171 | mov ecx, 1 ; debug_message code=other_exception |
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172 | cmp bl, 1 ; #DB |
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173 | jne .notify ; notify debugger and suspend ourself |
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174 | mov ebx, dr6 ; debug_message data=DR6_image |
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175 | xor edx, edx |
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176 | mov dr6, edx |
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177 | mov edx, dr7 |
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178 | mov cl, not 8 |
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179 | .l1: |
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180 | shl dl, 2 |
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181 | jc @f |
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182 | and bl, cl |
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183 | @@: |
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184 | sar cl, 1 |
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185 | jc .l1 |
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186 | mov cl, 3 ; debug_message code=debug_exception |
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187 | .notify: |
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188 | push ebx ; debug_message data |
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189 | mov ebx, [TASK_BASE] |
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190 | push [ebx+TASKDATA.pid] ; PID |
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191 | push ecx ; debug_message code ((here: ecx==1/3)) |
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192 | mov cl, 12 ; debug_message size |
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193 | call debugger_notify ;; only ONE using, inline ??? SEE: core/debug.inc |
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194 | add esp, 12 |
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195 | mov edx, [TASK_BASE] |
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196 | mov byte [edx+TASKDATA.state], 1 ; suspended |
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197 | call change_task ; SEE: core/shed.inc |
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198 | restore_ring3_context |
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199 | iretd |
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200 | |||
201 | IRetToUserHook: |
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202 | xchg eax, [reg_eip] |
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203 | sub dword[reg_esp3], 8 |
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204 | mov edi, [reg_esp3] |
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205 | stosd |
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206 | mov [edi], ebx |
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207 | restore_ring3_context |
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208 | ; simply return control to interrupted process |
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209 | unknown_interrupt: |
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210 | iretd |
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211 | |||
212 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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213 | ; bl - error vector |
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214 | show_error_parameters: |
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215 | cmp bl, 0x06 |
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216 | jnz .no_ud |
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217 | push ebx |
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218 | mov ebx, ud_user_message |
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219 | mov ebp, notifyapp |
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220 | call fs_execute_from_sysdir_param |
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221 | pop ebx |
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222 | .no_ud: |
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223 | mov edx, [TASK_BASE];not scratched below |
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3309 | esevece | 224 | if lang eq sp |
225 | DEBUGF 1, "K : Proceso - terminado forzado PID: %x [%s]\n", [edx+TASKDATA.pid], [current_slot] |
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226 | else |
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3294 | clevermous | 227 | DEBUGF 1, "K : Process - forced terminate PID: %x [%s]\n", [edx+TASKDATA.pid], [current_slot] |
3309 | esevece | 228 | end if |
2288 | clevermous | 229 | cmp bl, 0x08 |
230 | jb .l0 |
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231 | cmp bl, 0x0e |
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232 | jbe .l1 |
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233 | .l0: |
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234 | mov bl, 0x09 |
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235 | .l1: |
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236 | mov eax, [msg_fault_sel+ebx*4 - 0x08*4] |
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237 | DEBUGF 1, "K : %s\n", eax |
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238 | mov eax, [reg_cs3+4] |
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239 | mov edi, msg_sel_app |
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240 | mov ebx, [reg_esp3+4] |
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241 | cmp eax, app_code |
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242 | je @f |
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243 | mov edi, msg_sel_ker |
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244 | mov ebx, [reg_esp0+4] |
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245 | @@: |
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246 | DEBUGF 1, "K : EAX : %x EBX : %x ECX : %x\n", [reg_eax+4], [reg_ebx+4], [reg_ecx+4] |
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247 | DEBUGF 1, "K : EDX : %x ESI : %x EDI : %x\n", [reg_edx+4], [reg_esi+4], [reg_edi+4] |
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248 | DEBUGF 1, "K : EBP : %x EIP : %x ESP : %x\n", [reg_ebp+4], [reg_eip+4], ebx |
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249 | DEBUGF 1, "K : Flags : %x CS : %x (%s)\n", [reg_eflags+4], eax, edi |
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3911 | mario79 | 250 | |
3909 | mario79 | 251 | DEBUGF 1, "K : Stack dump:\n" |
3911 | mario79 | 252 | push eax ebx ecx edx |
253 | call .check_ESP |
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254 | test eax, eax |
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255 | jnz .error_ESP |
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256 | DEBUGF 1, "K : [ESP+00]: %x",[ebx] |
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257 | add ebx, 4 |
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258 | call .check_ESP |
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259 | test eax, eax |
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260 | jnz .error_ESP |
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261 | DEBUGF 1, " [ESP+04]: %x",[ebx] |
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262 | add ebx, 4 |
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263 | call .check_ESP |
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264 | test eax, eax |
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265 | jnz .error_ESP |
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5356 | serge | 266 | DEBUGF 1, " [ESP+08]: %x\n",[ebx] |
3911 | mario79 | 267 | add ebx, 4 |
268 | call .check_ESP |
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269 | test eax, eax |
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270 | jnz .error_ESP |
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271 | DEBUGF 1, "K : [ESP+12]: %x",[ebx] |
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272 | add ebx, 4 |
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273 | call .check_ESP |
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274 | test eax, eax |
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275 | jnz .error_ESP |
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276 | DEBUGF 1, " [ESP+16]: %x",[ebx] |
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277 | add ebx, 4 |
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278 | call .check_ESP |
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279 | test eax, eax |
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280 | jnz .error_ESP |
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281 | DEBUGF 1, " [ESP+20]: %x\n",[ebx] |
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282 | add ebx, 4 |
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283 | call .check_ESP |
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284 | test eax, eax |
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285 | jnz .error_ESP |
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286 | DEBUGF 1, "K : [ESP+24]: %x",[ebx] |
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287 | add ebx, 4 |
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288 | call .check_ESP |
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289 | test eax, eax |
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290 | jnz .error_ESP |
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291 | DEBUGF 1, " [ESP+28]: %x",[ebx] |
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292 | add ebx, 4 |
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293 | call .check_ESP |
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294 | test eax, eax |
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295 | jnz .error_ESP |
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5356 | serge | 296 | DEBUGF 1, " [ESP+32]: %x\n",[ebx] |
3911 | mario79 | 297 | pop edx ecx ebx eax |
2288 | clevermous | 298 | ret |
3911 | mario79 | 299 | .error_ESP: |
300 | pop edx ecx ebx eax |
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301 | DEBUGF 1, "\n" |
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302 | DEBUGF 1, "K : Unexpected end of the stack\n" |
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303 | ret |
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304 | ;-------------------------------------- |
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305 | .check_ESP: |
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306 | push ebx |
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307 | shr ebx, 12 |
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308 | mov ecx, ebx |
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309 | shr ecx, 10 |
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310 | mov edx, [master_tab+ecx*4] |
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5356 | serge | 311 | test edx, PG_READ |
3911 | mario79 | 312 | jz .fail ;page table is not created |
313 | ;incorrect address in the program |
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314 | |||
315 | mov eax, [page_tabs+ebx*4] |
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316 | test eax, 2 |
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317 | jz .fail ;address not reserved for use. error |
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5356 | serge | 318 | |
319 | pop ebx |
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3911 | mario79 | 320 | xor eax, eax |
5356 | serge | 321 | ret |
322 | |||
3911 | mario79 | 323 | .fail: |
324 | pop ebx |
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325 | xor eax, eax |
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326 | dec eax |
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327 | ret |
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2288 | clevermous | 328 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
329 | |||
330 | restore reg_ss |
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331 | restore reg_esp3 |
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332 | restore reg_eflags |
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333 | restore reg_cs |
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334 | restore reg_eip |
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335 | restore reg_eax |
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336 | restore reg_ecx |
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337 | restore reg_edx |
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338 | restore reg_ebx |
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339 | restore reg_esp0 |
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340 | restore reg_ebp |
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341 | restore reg_esi |
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342 | restore reg_edi |
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343 | |||
344 | |||
345 | align 4 |
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3534 | clevermous | 346 | lock_application_table: |
347 | push eax ecx edx |
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348 | mov ecx, application_table_mutex |
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349 | call mutex_lock |
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2288 | clevermous | 350 | |
351 | mov eax, [CURRENT_TASK] |
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352 | shl eax, 5 |
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353 | add eax, CURRENT_TASK+TASKDATA.pid |
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354 | mov eax, [eax] |
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355 | |||
3534 | clevermous | 356 | mov [application_table_owner], eax |
2288 | clevermous | 357 | |
3534 | clevermous | 358 | pop edx ecx eax |
2288 | clevermous | 359 | |
360 | ret |
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361 | |||
362 | align 4 |
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3534 | clevermous | 363 | unlock_application_table: |
364 | push eax ecx edx |
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2288 | clevermous | 365 | |
3534 | clevermous | 366 | mov [application_table_owner], 0 |
367 | mov ecx, application_table_mutex |
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368 | call mutex_unlock |
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2288 | clevermous | 369 | |
3534 | clevermous | 370 | pop edx ecx eax |
2288 | clevermous | 371 | |
372 | ret |
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373 | |||
3539 | clevermous | 374 | ; * eax = 64 - номер функции |
375 | ; * ebx = 1 - единственная подфункция |
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376 | ; * ecx = новый размер памяти |
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377 | ;Возвращаемое значение: |
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378 | ; * eax = 0 - успешно |
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379 | ; * eax = 1 - недостаточно памяти |
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2288 | clevermous | 380 | |
381 | align 4 |
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382 | sys_resize_app_memory: |
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383 | ; ebx = 1 - resize |
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384 | ; ecx = new amount of memory |
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385 | |||
386 | ; cmp eax,1 |
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387 | dec ebx |
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388 | jnz .no_application_mem_resize |
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4313 | mario79 | 389 | |
390 | mov eax, [pg_data.pages_free] |
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391 | shl eax, 12 |
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392 | cmp eax, ecx |
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393 | jae @f |
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394 | |||
395 | xor eax, eax |
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396 | inc eax |
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397 | jmp .store_result |
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398 | @@: |
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2288 | clevermous | 399 | stdcall new_mem_resize, ecx |
4313 | mario79 | 400 | .store_result: |
2288 | clevermous | 401 | mov [esp+32], eax |
402 | .no_application_mem_resize: |
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403 | ret |
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404 | |||
405 | iglobal |
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406 | ; process_terminating db 'K : Process - terminating',13,10,0 |
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407 | ; process_terminated db 'K : Process - done',13,10,0 |
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408 | msg_obj_destroy db 'K : destroy app object',13,10,0 |
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409 | endg |
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410 | |||
411 | ; param |
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412 | ; esi= slot |
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413 | |||
414 | align 4 |
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415 | terminate: ; terminate application |
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5130 | serge | 416 | destroy_thread: |
2288 | clevermous | 417 | |
5130 | serge | 418 | .slot equ esp+4 ;locals |
419 | .process equ esp ;ptr to parent process |
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2288 | clevermous | 420 | |
5130 | serge | 421 | |
2288 | clevermous | 422 | push esi ;save .slot |
423 | |||
424 | shl esi, 8 |
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5130 | serge | 425 | mov edx, [SLOT_BASE+esi+APPDATA.process] |
426 | test edx, edx |
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427 | jnz @F |
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2288 | clevermous | 428 | pop esi |
429 | shl esi, 5 |
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430 | mov [CURRENT_TASK+esi+TASKDATA.state], 9 |
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431 | ret |
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432 | @@: |
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5130 | serge | 433 | push edx ;save .process |
3534 | clevermous | 434 | lea edx, [SLOT_BASE+esi] |
435 | call scheduler_remove_thread |
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436 | call lock_application_table |
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2288 | clevermous | 437 | |
438 | ; if the process is in V86 mode... |
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439 | mov eax, [.slot] |
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440 | shl eax, 8 |
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441 | mov esi, [eax+SLOT_BASE+APPDATA.pl0_stack] |
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442 | add esi, RING0_STACK_SIZE |
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443 | cmp [eax+SLOT_BASE+APPDATA.saved_esp0], esi |
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444 | jz .nov86 |
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445 | ; ...it has page directory for V86 mode |
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446 | mov esi, [eax+SLOT_BASE+APPDATA.saved_esp0] |
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447 | mov ecx, [esi+4] |
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5130 | serge | 448 | mov [eax+SLOT_BASE+APPDATA.process], ecx |
2288 | clevermous | 449 | ; ...and I/O permission map for V86 mode |
450 | mov ecx, [esi+12] |
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451 | mov [eax+SLOT_BASE+APPDATA.io_map], ecx |
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452 | mov ecx, [esi+8] |
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453 | mov [eax+SLOT_BASE+APPDATA.io_map+4], ecx |
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454 | .nov86: |
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5130 | serge | 455 | ;destroy per-thread kernel objects |
2288 | clevermous | 456 | mov esi, [.slot] |
457 | shl esi, 8 |
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458 | add esi, SLOT_BASE+APP_OBJ_OFFSET |
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459 | @@: |
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460 | mov eax, [esi+APPOBJ.fd] |
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461 | test eax, eax |
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462 | jz @F |
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463 | |||
464 | cmp eax, esi |
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465 | je @F |
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466 | |||
467 | push esi |
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468 | call [eax+APPOBJ.destroy] |
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469 | DEBUGF 1,"%s",msg_obj_destroy |
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470 | pop esi |
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471 | jmp @B |
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472 | @@: |
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473 | mov esi, [.slot] |
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3534 | clevermous | 474 | cmp [fpu_owner], esi ; if user fpu last -> fpu user = 2 |
2288 | clevermous | 475 | jne @F |
476 | |||
3534 | clevermous | 477 | mov [fpu_owner], 2 |
478 | mov eax, [256*2+SLOT_BASE+APPDATA.fpu_state] |
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2288 | clevermous | 479 | clts |
480 | bt [cpu_caps], CAPS_SSE |
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481 | jnc .no_SSE |
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482 | fxrstor [eax] |
||
483 | jmp @F |
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484 | .no_SSE: |
||
485 | fnclex |
||
486 | frstor [eax] |
||
487 | @@: |
||
488 | |||
489 | mov [KEY_COUNT], byte 0 ; empty keyboard buffer |
||
490 | mov [BTN_COUNT], byte 0 ; empty button buffer |
||
491 | |||
492 | |||
493 | ; remove defined hotkeys |
||
494 | mov eax, hotkey_list |
||
495 | .loop: |
||
496 | cmp [eax+8], esi |
||
497 | jnz .cont |
||
498 | mov ecx, [eax] |
||
499 | jecxz @f |
||
500 | push dword [eax+12] |
||
501 | pop dword [ecx+12] |
||
502 | @@: |
||
503 | mov ecx, [eax+12] |
||
504 | push dword [eax] |
||
505 | pop dword [ecx] |
||
506 | xor ecx, ecx |
||
507 | mov [eax], ecx |
||
508 | mov [eax+4], ecx |
||
509 | mov [eax+8], ecx |
||
510 | mov [eax+12], ecx |
||
511 | .cont: |
||
512 | add eax, 16 |
||
513 | cmp eax, hotkey_list+256*16 |
||
514 | jb .loop |
||
2709 | mario79 | 515 | ; get process PID |
516 | mov eax, esi |
||
517 | shl eax, 5 |
||
518 | mov eax, [eax+CURRENT_TASK+TASKDATA.pid] |
||
519 | ; compare current lock input with process PID |
||
520 | cmp eax, [PID_lock_input] |
||
521 | jne @f |
||
522 | |||
523 | xor eax, eax |
||
524 | mov [PID_lock_input], eax |
||
525 | @@: |
||
2288 | clevermous | 526 | ; remove hotkeys in buffer |
527 | mov eax, hotkey_buffer |
||
528 | .loop2: |
||
529 | cmp [eax], esi |
||
530 | jnz .cont2 |
||
531 | and dword [eax+4], 0 |
||
532 | and dword [eax], 0 |
||
533 | .cont2: |
||
534 | add eax, 8 |
||
535 | cmp eax, hotkey_buffer+120*8 |
||
536 | jb .loop2 |
||
537 | |||
538 | mov ecx, esi ; remove buttons |
||
539 | bnewba2: |
||
540 | mov edi, [BTN_ADDR] |
||
541 | mov eax, edi |
||
542 | cld |
||
543 | movzx ebx, word [edi] |
||
544 | inc bx |
||
545 | bnewba: |
||
546 | dec bx |
||
547 | jz bnmba |
||
548 | add eax, 0x10 |
||
549 | cmp cx, [eax] |
||
550 | jnz bnewba |
||
551 | pusha |
||
552 | mov ecx, ebx |
||
553 | inc ecx |
||
554 | shl ecx, 4 |
||
555 | mov ebx, eax |
||
556 | add eax, 0x10 |
||
557 | call memmove |
||
558 | dec dword [edi] |
||
559 | popa |
||
560 | jmp bnewba2 |
||
561 | bnmba: |
||
562 | |||
563 | pusha ; save window coordinates for window restoring |
||
564 | cld |
||
565 | shl esi, 5 |
||
566 | add esi, window_data |
||
567 | mov eax, [esi+WDATA.box.left] |
||
568 | mov [draw_limits.left], eax |
||
569 | add eax, [esi+WDATA.box.width] |
||
570 | mov [draw_limits.right], eax |
||
571 | mov eax, [esi+WDATA.box.top] |
||
572 | mov [draw_limits.top], eax |
||
573 | add eax, [esi+WDATA.box.height] |
||
574 | mov [draw_limits.bottom], eax |
||
575 | |||
576 | xor eax, eax |
||
577 | mov [esi+WDATA.box.left], eax |
||
578 | mov [esi+WDATA.box.width], eax |
||
579 | mov [esi+WDATA.box.top], eax |
||
580 | mov [esi+WDATA.box.height], eax |
||
581 | mov [esi+WDATA.cl_workarea], eax |
||
582 | mov [esi+WDATA.cl_titlebar], eax |
||
583 | mov [esi+WDATA.cl_frames], eax |
||
5836 | GerdtR | 584 | mov dword [esi+WDATA.z_modif], eax; clear all flags: z_modif, wstate, redraw, wdrawn |
2288 | clevermous | 585 | lea edi, [esi-window_data+draw_data] |
586 | mov ecx, 32/4 |
||
587 | rep stosd |
||
588 | popa |
||
589 | |||
590 | ; debuggee test |
||
591 | pushad |
||
592 | mov edi, esi |
||
593 | shl edi, 5 |
||
594 | mov eax, [SLOT_BASE+edi*8+APPDATA.debugger_slot] |
||
595 | test eax, eax |
||
596 | jz .nodebug |
||
3598 | clevermous | 597 | movi ecx, 8 |
2288 | clevermous | 598 | push dword [CURRENT_TASK+edi+TASKDATA.pid]; PID |
599 | push 2 |
||
600 | call debugger_notify |
||
601 | pop ecx |
||
602 | pop ecx |
||
603 | .nodebug: |
||
604 | popad |
||
605 | |||
606 | mov ebx, [.slot] |
||
607 | shl ebx, 8 |
||
608 | push ebx |
||
609 | mov ebx, [SLOT_BASE+ebx+APPDATA.pl0_stack] |
||
610 | |||
611 | stdcall kernel_free, ebx |
||
612 | |||
613 | pop ebx |
||
614 | mov ebx, [SLOT_BASE+ebx+APPDATA.cur_dir] |
||
615 | stdcall kernel_free, ebx |
||
616 | |||
617 | mov edi, [.slot] |
||
618 | shl edi, 8 |
||
619 | add edi, SLOT_BASE |
||
620 | |||
621 | mov eax, [edi+APPDATA.io_map] |
||
622 | cmp eax, [SLOT_BASE+256+APPDATA.io_map] |
||
623 | je @F |
||
624 | call free_page |
||
625 | @@: |
||
626 | mov eax, [edi+APPDATA.io_map+4] |
||
627 | cmp eax, [SLOT_BASE+256+APPDATA.io_map+4] |
||
628 | je @F |
||
629 | call free_page |
||
630 | @@: |
||
5130 | serge | 631 | lea ebx, [edi+APPDATA.list] |
632 | list_del ebx ;destroys edx, ecx |
||
633 | |||
2288 | clevermous | 634 | mov eax, 0x20202020 |
635 | stosd |
||
636 | stosd |
||
637 | stosd |
||
638 | mov ecx, 244/4 |
||
639 | xor eax, eax |
||
640 | rep stosd |
||
641 | |||
642 | ; activate window |
||
643 | movzx eax, word [WIN_STACK + esi*2] |
||
644 | cmp eax, [TASK_COUNT] |
||
645 | jne .dont_activate |
||
646 | pushad |
||
647 | .check_next_window: |
||
648 | dec eax |
||
649 | cmp eax, 1 |
||
650 | jbe .nothing_to_activate |
||
651 | lea esi, [WIN_POS+eax*2] |
||
652 | movzx edi, word [esi] ; edi = process |
||
653 | shl edi, 5 |
||
654 | cmp [CURRENT_TASK + edi + TASKDATA.state], byte 9 ; skip dead slots |
||
655 | je .check_next_window |
||
656 | add edi, window_data |
||
657 | ; \begin{diamond}[19.09.2006] |
||
658 | ; skip minimized windows |
||
659 | test [edi + WDATA.fl_wstate], WSTATE_MINIMIZED |
||
660 | jnz .check_next_window |
||
661 | ; \end{diamond} |
||
662 | call waredraw |
||
663 | .nothing_to_activate: |
||
664 | popad |
||
665 | .dont_activate: |
||
666 | |||
667 | push esi ; remove hd1 & cd & flp reservation |
||
668 | shl esi, 5 |
||
669 | mov esi, [esi+CURRENT_TASK+TASKDATA.pid] |
||
670 | cmp [cd_status], esi |
||
671 | jnz @f |
||
672 | call free_cd_channel |
||
673 | and [cd_status], 0 |
||
674 | @@: |
||
675 | pop esi |
||
676 | cmp [bgrlockpid], esi |
||
677 | jnz @f |
||
678 | and [bgrlockpid], 0 |
||
679 | and [bgrlock], 0 |
||
680 | @@: |
||
681 | |||
682 | pusha ; remove all port reservations |
||
683 | mov edx, esi |
||
684 | shl edx, 5 |
||
685 | add edx, CURRENT_TASK |
||
686 | mov edx, [edx+TASKDATA.pid] |
||
687 | |||
688 | rmpr0: |
||
689 | |||
690 | mov esi, [RESERVED_PORTS] |
||
691 | |||
692 | test esi, esi |
||
693 | jz rmpr9 |
||
694 | |||
695 | rmpr3: |
||
696 | |||
697 | mov edi, esi |
||
698 | shl edi, 4 |
||
699 | add edi, RESERVED_PORTS |
||
700 | |||
701 | cmp edx, [edi] |
||
702 | je rmpr4 |
||
703 | |||
704 | dec esi |
||
705 | jnz rmpr3 |
||
706 | |||
707 | jmp rmpr9 |
||
708 | |||
709 | rmpr4: |
||
710 | |||
711 | mov ecx, 256 |
||
712 | sub ecx, esi |
||
713 | shl ecx, 4 |
||
714 | |||
715 | mov esi, edi |
||
716 | add esi, 16 |
||
717 | cld |
||
718 | rep movsb |
||
719 | |||
720 | dec dword [RESERVED_PORTS] |
||
721 | |||
722 | jmp rmpr0 |
||
723 | |||
724 | rmpr9: |
||
725 | |||
726 | popa |
||
727 | mov edi, esi ; do not run this process slot |
||
728 | shl edi, 5 |
||
729 | mov [edi+CURRENT_TASK + TASKDATA.state], byte 9 |
||
730 | ; debugger test - terminate all debuggees |
||
731 | mov eax, 2 |
||
732 | mov ecx, SLOT_BASE+2*0x100+APPDATA.debugger_slot |
||
733 | .xd0: |
||
734 | cmp eax, [TASK_COUNT] |
||
735 | ja .xd1 |
||
736 | cmp dword [ecx], esi |
||
737 | jnz @f |
||
738 | and dword [ecx], 0 |
||
739 | pushad |
||
740 | xchg eax, ecx |
||
741 | mov ebx, 2 |
||
742 | call sys_system |
||
743 | popad |
||
744 | @@: |
||
745 | inc eax |
||
746 | add ecx, 0x100 |
||
747 | jmp .xd0 |
||
748 | .xd1: |
||
5130 | serge | 749 | ;release slot |
750 | |||
751 | bts [thr_slot_map], esi |
||
752 | |||
753 | mov ecx, [.process] |
||
754 | lea eax, [ecx+PROC.thr_list] |
||
755 | cmp eax, [eax+LHEAD.next] |
||
756 | jne @F |
||
757 | |||
758 | call destroy_process.internal |
||
759 | @@: |
||
2288 | clevermous | 760 | sti ; .. and life goes on |
761 | |||
762 | mov eax, [draw_limits.left] |
||
763 | mov ebx, [draw_limits.top] |
||
764 | mov ecx, [draw_limits.right] |
||
765 | mov edx, [draw_limits.bottom] |
||
766 | call calculatescreen |
||
767 | xor eax, eax |
||
768 | xor esi, esi |
||
769 | call redrawscreen |
||
770 | |||
3534 | clevermous | 771 | call unlock_application_table |
2288 | clevermous | 772 | ;mov esi,process_terminated |
773 | ;call sys_msg_board_str |
||
5130 | serge | 774 | add esp, 8 |
2288 | clevermous | 775 | ret |
776 | restore .slot |
||
5130 | serge | 777 | restore .process |
2288 | clevermous | 778 | |
3296 | clevermous | 779 | ; Three following procedures are used to guarantee that |
780 | ; some part of kernel code will not be terminated from outside |
||
781 | ; while it is running. |
||
782 | ; Note: they do not protect a thread from terminating due to errors inside |
||
783 | ; the thread; accessing a nonexisting memory would still terminate it. |
||
784 | |||
785 | ; First two procedures must be used in pair by thread-to-be-protected |
||
786 | ; to signal the beginning and the end of an important part. |
||
787 | ; It is OK to have nested areas. |
||
788 | |||
789 | ; The last procedure must be used by outside wanna-be-terminators; |
||
790 | ; if it is safe to terminate the given thread immediately, it returns eax=1; |
||
791 | ; otherwise, it returns eax=0 and notifies the target thread that it should |
||
792 | ; terminate itself when leaving a critical area (the last critical area if |
||
793 | ; they are nested). |
||
794 | |||
795 | ; Implementation. Those procedures use one dword in APPDATA for the thread, |
||
796 | ; APPDATA.terminate_protection. |
||
797 | ; * The upper bit is 1 during normal operations and 0 when terminate is requested. |
||
798 | ; * Other bits form a number = depth of critical regions, |
||
799 | ; plus 1 if the upper bit is 1. |
||
800 | ; * When this dword goes to zero, the thread should be destructed, |
||
801 | ; and the procedure in which it happened becomes responsible for destruction. |
||
802 | |||
803 | ; Enter critical area. Called by thread which wants to be protected. |
||
804 | proc protect_from_terminate |
||
805 | mov edx, [current_slot] |
||
806 | ; Atomically increment depth of critical areas and get the old value. |
||
807 | mov eax, 1 |
||
808 | lock xadd [edx+APPDATA.terminate_protection], eax |
||
809 | ; If the old value was zero, somebody has started to terminate us, |
||
810 | ; so we are destructing and cannot do anything protected. |
||
811 | ; Otherwise, return to the caller. |
||
812 | test eax, eax |
||
813 | jz @f |
||
814 | ret |
||
815 | @@: |
||
816 | ; Wait for somebody to finish us. |
||
817 | call change_task |
||
818 | jmp @b |
||
819 | endp |
||
820 | |||
821 | ; Leave critical area. Called by thread which wants to be protected. |
||
822 | proc unprotect_from_terminate |
||
823 | mov edx, [current_slot] |
||
824 | ; Atomically decrement depth of critical areas. |
||
825 | lock dec [edx+APPDATA.terminate_protection] |
||
826 | ; If the result of decrement is zero, somebody has requested termination, |
||
827 | ; but at that moment we were inside a critical area; terminate now. |
||
828 | jz sys_end |
||
829 | ; Otherwise, return to the caller. |
||
830 | ret |
||
831 | endp |
||
832 | |||
833 | ; Request termination of thread identified by edx = SLOT_BASE + slot*256. |
||
834 | ; Called by anyone. |
||
835 | proc request_terminate |
||
836 | xor eax, eax ; set return value |
||
837 | ; Atomically clear the upper bit. If it was already zero, then |
||
838 | ; somebody has requested termination before us, so just exit. |
||
839 | lock btr [edx+APPDATA.terminate_protection], 31 |
||
840 | jnc .unsafe |
||
841 | ; Atomically decrement depth of critical areas. |
||
842 | lock dec [edx+APPDATA.terminate_protection] |
||
843 | ; If the result of decrement is nonzero, the target thread is inside a |
||
844 | ; critical area; leave termination to leaving that area. |
||
845 | jnz .unsafe |
||
846 | ; Otherwise, it is safe to kill the target now and the caller is responsible |
||
847 | ; for this. Return eax=1. |
||
848 | inc eax |
||
849 | .unsafe: |
||
850 | ret |
||
851 | endp |
||
852 |