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Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2465 | Serge | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
431 | serge | 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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1 | ha | 13 | |
593 | mikedld | 14 | $Revision: 4423 $ |
15 | |||
1056 | Galkov | 16 | align 4 ;3A08 |
1 | ha | 17 | build_interrupt_table: |
1056 | Galkov | 18 | mov edi, idts |
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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2434 | Serge | 22 | @@: |
23 | movsw ;low word of code-entry |
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1056 | Galkov | 24 | stosd ;interrupt gate type : os_code selector |
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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1 | ha | 31 | |
1056 | Galkov | 32 | iglobal |
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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1076 | Galkov | 36 | dd e0,e1,e2,e3,e4,e5,e6,except_7 ; SEE: core/fpu.inc |
1056 | Galkov | 37 | dd e8,e9,e10,e11,e12,e13,page_fault_exc,e15 |
38 | dd e16, e17,e18, e19 |
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39 | times 12 dd unknown_interrupt ;int_20..int_31 |
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164 | serge | 40 | |
1056 | Galkov | 41 | ;interrupt handlers addresses (for interrupt gate construction) |
2434 | Serge | 42 | ; 0x20 .. 0x2F - IRQ handlers |
1056 | Galkov | 43 | dd irq0, irq_serv.irq_1, irq_serv.irq_2 |
44 | dd irq_serv.irq_3, irq_serv.irq_4 |
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2010 | serge | 45 | dd irq_serv.irq_5, irq_serv.irq_6, irq_serv.irq_7 |
1056 | Galkov | 46 | dd irq_serv.irq_8, irq_serv.irq_9, irq_serv.irq_10 |
2010 | serge | 47 | dd irq_serv.irq_11, irq_serv.irq_12, irqD, irq_serv.irq_14, irq_serv.irq_15 |
2434 | Serge | 48 | dd irq_serv.irq_16 |
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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1 | ha | 56 | |
2130 | serge | 57 | times 32 - IRQ_RESERVED dd unknown_interrupt |
1056 | Galkov | 58 | ;int_0x40 gate trap (for directly copied) |
59 | dw i40 and 0xFFFF, os_code, 11101111b shl 8, i40 shr 16 |
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656 | mikedld | 60 | |
1076 | Galkov | 61 | idtreg: ; data for LIDT instruction (!!! must be immediately below sys_int data) |
1056 | Galkov | 62 | dw 2*($-sys_int-4)-1 |
63 | dd idts ;0x8000B100 |
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3555 | Serge | 64 | dw 0 ;просто выравнивание |
656 | mikedld | 65 | |
1056 | Galkov | 66 | msg_fault_sel dd msg_exc_8,msg_exc_u,msg_exc_a,msg_exc_b |
67 | dd msg_exc_c,msg_exc_d,msg_exc_e |
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164 | serge | 68 | |
1056 | Galkov | 69 | msg_exc_8 db "Double fault", 0 |
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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1 | ha | 76 | |
3500 | Serge | 77 | if lang eq sp |
78 | include 'core/sys32-sp.inc' |
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79 | else |
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3908 | Serge | 80 | msg_sel_ker db "kernel", 0 |
81 | msg_sel_app db "application", 0 |
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3500 | Serge | 82 | end if |
1 | ha | 83 | |
84 | endg |
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85 | |||
1056 | Galkov | 86 | macro save_ring3_context { |
87 | pushad |
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40 | halyavin | 88 | } |
1056 | Galkov | 89 | macro restore_ring3_context { |
90 | popad |
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40 | halyavin | 91 | } |
1056 | Galkov | 92 | macro exc_wo_code [num] { |
8 | poddubny | 93 | e#num : |
1056 | Galkov | 94 | save_ring3_context |
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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1 | ha | 98 | |
1056 | Galkov | 99 | macro exc_w_code [num] { |
22 | poddubny | 100 | e#num : |
1056 | Galkov | 101 | add esp, 4 |
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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22 | poddubny | 106 | |
107 | |||
1056 | Galkov | 108 | uglobal |
109 | pf_err_code dd ? |
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110 | endg |
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1 | ha | 111 | |
3555 | Serge | 112 | page_fault_exc: ; дуракоусточивость: селекторы испорчены... |
113 | pop [ss:pf_err_code]; действительно до следующего #PF |
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1056 | Galkov | 114 | save_ring3_context |
2434 | Serge | 115 | mov bl, 14 |
1086 | Galkov | 116 | |
3555 | Serge | 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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1056 | Galkov | 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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3555 | Serge | 124 | ; это фрэйм от pushad |
1056 | Galkov | 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 | |||
3555 | Serge | 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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2434 | Serge | 138 | movzx ebx, bl |
709 | diamond | 139 | ; redirect to V86 manager? (EFLAGS & 0x20000) != 0? |
2434 | Serge | 140 | test byte[reg_eflags+2], 2 |
1056 | Galkov | 141 | jnz v86_exc_c |
2434 | Serge | 142 | cmp bl, 14 ; #PF |
1074 | Galkov | 143 | jne @f |
1076 | Galkov | 144 | call page_fault_handler ; SEE: core/memory.inc |
2434 | Serge | 145 | @@: |
146 | mov esi, [current_slot] |
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1074 | Galkov | 147 | btr [esi+APPDATA.except_mask], ebx |
148 | jnc @f |
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2434 | Serge | 149 | mov eax, [esi+APPDATA.exc_handler] |
1074 | Galkov | 150 | test eax, eax |
1056 | Galkov | 151 | jnz IRetToUserHook |
2434 | Serge | 152 | @@: |
153 | cli |
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1056 | Galkov | 154 | mov eax, [esi+APPDATA.debugger_slot] |
155 | test eax, eax |
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156 | jnz .debug |
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157 | sti |
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40 | halyavin | 158 | ; not debuggee => say error and terminate |
1056 | Galkov | 159 | call show_error_parameters ;; only ONE using, inline ??? |
160 | ;mov edx, [TASK_BASE] |
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161 | mov [edx + TASKDATA.state], byte 4 ; terminate |
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3555 | Serge | 162 | call wakeup_osloop |
3626 | Serge | 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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40 | halyavin | 168 | .debug: |
169 | ; we are debugged process, notify debugger and suspend ourself |
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170 | ; eax=debugger PID |
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2434 | Serge | 171 | mov ecx, 1 ; debug_message code=other_exception |
172 | cmp bl, 1 ; #DB |
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1076 | Galkov | 173 | jne .notify ; notify debugger and suspend ourself |
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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2434 | Serge | 179 | .l1: |
180 | shl dl, 2 |
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1076 | Galkov | 181 | jc @f |
182 | and bl, cl |
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2434 | Serge | 183 | @@: |
184 | sar cl, 1 |
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1076 | Galkov | 185 | jc .l1 |
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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2434 | Serge | 194 | add esp, 12 |
1076 | Galkov | 195 | mov edx, [TASK_BASE] |
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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1 | ha | 200 | |
1056 | Galkov | 201 | IRetToUserHook: |
202 | xchg eax, [reg_eip] |
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1074 | Galkov | 203 | sub dword[reg_esp3], 8 |
1056 | Galkov | 204 | mov edi, [reg_esp3] |
205 | stosd |
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1074 | Galkov | 206 | mov [edi], ebx |
1056 | Galkov | 207 | restore_ring3_context |
1638 | serge | 208 | ; simply return control to interrupted process |
1056 | Galkov | 209 | unknown_interrupt: |
210 | iretd |
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1 | ha | 211 | |
658 | Ghost | 212 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
1638 | serge | 213 | ; bl - error vector |
1 | ha | 214 | show_error_parameters: |
2010 | serge | 215 | cmp bl, 0x06 |
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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2434 | Serge | 223 | mov edx, [TASK_BASE];not scratched below |
3500 | Serge | 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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227 | DEBUGF 1, "K : Process - forced terminate PID: %x [%s]\n", [edx+TASKDATA.pid], [current_slot] |
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228 | end if |
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1056 | Galkov | 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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2434 | Serge | 233 | .l0: |
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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1056 | Galkov | 237 | DEBUGF 1, "K : %s\n", eax |
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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2434 | Serge | 245 | @@: |
246 | DEBUGF 1, "K : EAX : %x EBX : %x ECX : %x\n", [reg_eax+4], [reg_ebx+4], [reg_ecx+4] |
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1056 | Galkov | 247 | DEBUGF 1, "K : EDX : %x ESI : %x EDI : %x\n", [reg_edx+4], [reg_esi+4], [reg_edi+4] |
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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4265 | Serge | 250 | |
251 | DEBUGF 1, "K : Stack dump:\n" |
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252 | push eax ebx ecx edx |
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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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266 | DEBUGF 1, " [ESP+08]: %x\n",[ebx] |
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267 | add ebx, 4 |
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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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296 | DEBUGF 1, " [ESP+32]: %x\n",[ebx] |
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297 | pop edx ecx ebx eax |
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1056 | Galkov | 298 | ret |
4265 | Serge | 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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311 | test edx, PG_MAP |
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312 | jz .fail ;page table is not created |
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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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318 | |||
319 | pop ebx |
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320 | xor eax, eax |
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321 | ret |
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322 | |||
323 | .fail: |
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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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658 | Ghost | 328 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
164 | serge | 329 | |
1056 | Galkov | 330 | restore reg_ss |
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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16 | poddubny | 343 | |
1638 | serge | 344 | |
2106 | serge | 345 | align 4 |
3555 | Serge | 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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1 | ha | 350 | |
2434 | Serge | 351 | mov eax, [CURRENT_TASK] |
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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1 | ha | 355 | |
3555 | Serge | 356 | mov [application_table_owner], eax |
1 | ha | 357 | |
3555 | Serge | 358 | pop edx ecx eax |
1 | ha | 359 | |
1056 | Galkov | 360 | ret |
1 | ha | 361 | |
2106 | serge | 362 | align 4 |
3555 | Serge | 363 | unlock_application_table: |
364 | push eax ecx edx |
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1 | ha | 365 | |
3555 | Serge | 366 | mov [application_table_owner], 0 |
367 | mov ecx, application_table_mutex |
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368 | call mutex_unlock |
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1 | ha | 369 | |
3555 | Serge | 370 | pop edx ecx eax |
1 | ha | 371 | |
1056 | Galkov | 372 | ret |
1 | ha | 373 | |
3555 | Serge | 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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1306 | Lrz | 380 | |
2106 | serge | 381 | align 4 |
1 | ha | 382 | sys_resize_app_memory: |
1306 | Lrz | 383 | ; ebx = 1 - resize |
384 | ; ecx = new amount of memory |
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1 | ha | 385 | |
1306 | Lrz | 386 | ; cmp eax,1 |
2434 | Serge | 387 | dec ebx |
388 | jnz .no_application_mem_resize |
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4423 | Serge | 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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1307 | Lrz | 399 | stdcall new_mem_resize, ecx |
4423 | Serge | 400 | .store_result: |
2434 | Serge | 401 | mov [esp+32], eax |
164 | serge | 402 | .no_application_mem_resize: |
1056 | Galkov | 403 | ret |
1 | ha | 404 | |
405 | iglobal |
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1056 | Galkov | 406 | ; process_terminating db 'K : Process - terminating',13,10,0 |
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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1 | ha | 409 | endg |
410 | |||
329 | serge | 411 | ; param |
412 | ; esi= slot |
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1 | ha | 413 | |
2106 | serge | 414 | align 4 |
1 | ha | 415 | terminate: ; terminate application |
416 | |||
1056 | Galkov | 417 | .slot equ esp ;locals |
329 | serge | 418 | |
2434 | Serge | 419 | push esi ;save .slot |
334 | serge | 420 | |
2434 | Serge | 421 | shl esi, 8 |
422 | cmp [SLOT_BASE+esi+APPDATA.dir_table], 0 |
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423 | jne @F |
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424 | pop esi |
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425 | shl esi, 5 |
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426 | mov [CURRENT_TASK+esi+TASKDATA.state], 9 |
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427 | ret |
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334 | serge | 428 | @@: |
3555 | Serge | 429 | lea edx, [SLOT_BASE+esi] |
430 | call scheduler_remove_thread |
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1056 | Galkov | 431 | ;mov esi,process_terminating |
432 | ;call sys_msg_board_str |
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3555 | Serge | 433 | call lock_application_table |
1 | ha | 434 | |
709 | diamond | 435 | ; if the process is in V86 mode... |
1056 | Galkov | 436 | mov eax, [.slot] |
437 | shl eax, 8 |
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438 | mov esi, [eax+SLOT_BASE+APPDATA.pl0_stack] |
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439 | add esi, RING0_STACK_SIZE |
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440 | cmp [eax+SLOT_BASE+APPDATA.saved_esp0], esi |
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441 | jz .nov86 |
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709 | diamond | 442 | ; ...it has page directory for V86 mode |
1056 | Galkov | 443 | mov esi, [eax+SLOT_BASE+APPDATA.saved_esp0] |
444 | mov ecx, [esi+4] |
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445 | mov [eax+SLOT_BASE+APPDATA.dir_table], ecx |
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709 | diamond | 446 | ; ...and I/O permission map for V86 mode |
1056 | Galkov | 447 | mov ecx, [esi+12] |
448 | mov [eax+SLOT_BASE+APPDATA.io_map], ecx |
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449 | mov ecx, [esi+8] |
||
450 | mov [eax+SLOT_BASE+APPDATA.io_map+4], ecx |
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709 | diamond | 451 | .nov86: |
452 | |||
2434 | Serge | 453 | mov esi, [.slot] |
454 | shl esi, 8 |
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455 | add esi, SLOT_BASE+APP_OBJ_OFFSET |
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329 | serge | 456 | @@: |
2434 | Serge | 457 | mov eax, [esi+APPOBJ.fd] |
458 | test eax, eax |
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459 | jz @F |
||
334 | serge | 460 | |
2434 | Serge | 461 | cmp eax, esi |
462 | je @F |
||
164 | serge | 463 | |
2434 | Serge | 464 | push esi |
465 | call [eax+APPOBJ.destroy] |
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1056 | Galkov | 466 | DEBUGF 1,"%s",msg_obj_destroy |
2434 | Serge | 467 | pop esi |
468 | jmp @B |
||
329 | serge | 469 | @@: |
1311 | diamond | 470 | |
2434 | Serge | 471 | mov eax, [.slot] |
472 | shl eax, 8 |
||
473 | stdcall destroy_app_space, [SLOT_BASE+eax+APPDATA.dir_table], [SLOT_BASE+eax+APPDATA.dlls_list_ptr] |
||
1 | ha | 474 | |
2434 | Serge | 475 | mov esi, [.slot] |
3555 | Serge | 476 | cmp [fpu_owner], esi ; if user fpu last -> fpu user = 2 |
2434 | Serge | 477 | jne @F |
164 | serge | 478 | |
3555 | Serge | 479 | mov [fpu_owner], 2 |
480 | mov eax, [256*2+SLOT_BASE+APPDATA.fpu_state] |
||
2434 | Serge | 481 | clts |
482 | bt [cpu_caps], CAPS_SSE |
||
483 | jnc .no_SSE |
||
484 | fxrstor [eax] |
||
485 | jmp @F |
||
203 | serge | 486 | .no_SSE: |
2434 | Serge | 487 | fnclex |
488 | frstor [eax] |
||
357 | serge | 489 | @@: |
203 | serge | 490 | |
2434 | Serge | 491 | mov [KEY_COUNT], byte 0 ; empty keyboard buffer |
492 | mov [BTN_COUNT], byte 0 ; empty button buffer |
||
1 | ha | 493 | |
494 | |||
92 | diamond | 495 | ; remove defined hotkeys |
1056 | Galkov | 496 | mov eax, hotkey_list |
92 | diamond | 497 | .loop: |
1056 | Galkov | 498 | cmp [eax+8], esi |
499 | jnz .cont |
||
500 | mov ecx, [eax] |
||
501 | jecxz @f |
||
502 | push dword [eax+12] |
||
503 | pop dword [ecx+12] |
||
92 | diamond | 504 | @@: |
1056 | Galkov | 505 | mov ecx, [eax+12] |
506 | push dword [eax] |
||
507 | pop dword [ecx] |
||
508 | xor ecx, ecx |
||
509 | mov [eax], ecx |
||
510 | mov [eax+4], ecx |
||
511 | mov [eax+8], ecx |
||
512 | mov [eax+12], ecx |
||
92 | diamond | 513 | .cont: |
1056 | Galkov | 514 | add eax, 16 |
515 | cmp eax, hotkey_list+256*16 |
||
516 | jb .loop |
||
2987 | Serge | 517 | ; get process PID |
518 | mov eax, esi |
||
519 | shl eax, 5 |
||
520 | mov eax, [eax+CURRENT_TASK+TASKDATA.pid] |
||
521 | ; compare current lock input with process PID |
||
522 | cmp eax, [PID_lock_input] |
||
523 | jne @f |
||
524 | |||
525 | xor eax, eax |
||
526 | mov [PID_lock_input], eax |
||
527 | @@: |
||
92 | diamond | 528 | ; remove hotkeys in buffer |
1056 | Galkov | 529 | mov eax, hotkey_buffer |
92 | diamond | 530 | .loop2: |
1056 | Galkov | 531 | cmp [eax], esi |
532 | jnz .cont2 |
||
533 | and dword [eax+4], 0 |
||
534 | and dword [eax], 0 |
||
92 | diamond | 535 | .cont2: |
1056 | Galkov | 536 | add eax, 8 |
537 | cmp eax, hotkey_buffer+120*8 |
||
538 | jb .loop2 |
||
92 | diamond | 539 | |
2434 | Serge | 540 | mov ecx, esi ; remove buttons |
1 | ha | 541 | bnewba2: |
2434 | Serge | 542 | mov edi, [BTN_ADDR] |
543 | mov eax, edi |
||
544 | cld |
||
545 | movzx ebx, word [edi] |
||
546 | inc bx |
||
1 | ha | 547 | bnewba: |
2434 | Serge | 548 | dec bx |
549 | jz bnmba |
||
550 | add eax, 0x10 |
||
551 | cmp cx, [eax] |
||
552 | jnz bnewba |
||
553 | pusha |
||
554 | mov ecx, ebx |
||
555 | inc ecx |
||
556 | shl ecx, 4 |
||
557 | mov ebx, eax |
||
558 | add eax, 0x10 |
||
559 | call memmove |
||
560 | dec dword [edi] |
||
561 | popa |
||
562 | jmp bnewba2 |
||
1 | ha | 563 | bnmba: |
564 | |||
2434 | Serge | 565 | pusha ; save window coordinates for window restoring |
566 | cld |
||
567 | shl esi, 5 |
||
568 | add esi, window_data |
||
569 | mov eax, [esi+WDATA.box.left] |
||
570 | mov [draw_limits.left], eax |
||
571 | add eax, [esi+WDATA.box.width] |
||
572 | mov [draw_limits.right], eax |
||
573 | mov eax, [esi+WDATA.box.top] |
||
574 | mov [draw_limits.top], eax |
||
575 | add eax, [esi+WDATA.box.height] |
||
576 | mov [draw_limits.bottom], eax |
||
1 | ha | 577 | |
2434 | Serge | 578 | xor eax, eax |
579 | mov [esi+WDATA.box.left], eax |
||
580 | mov [esi+WDATA.box.width], eax |
||
581 | mov [esi+WDATA.box.top], eax |
||
582 | mov [esi+WDATA.box.height], eax |
||
583 | mov [esi+WDATA.cl_workarea], eax |
||
584 | mov [esi+WDATA.cl_titlebar], eax |
||
585 | mov [esi+WDATA.cl_frames], eax |
||
586 | mov dword [esi+WDATA.reserved], eax; clear all flags: wstate, redraw, wdrawn |
||
587 | lea edi, [esi-window_data+draw_data] |
||
588 | mov ecx, 32/4 |
||
589 | rep stosd |
||
590 | popa |
||
1 | ha | 591 | |
40 | halyavin | 592 | ; debuggee test |
2434 | Serge | 593 | pushad |
594 | mov edi, esi |
||
595 | shl edi, 5 |
||
596 | mov eax, [SLOT_BASE+edi*8+APPDATA.debugger_slot] |
||
597 | test eax, eax |
||
598 | jz .nodebug |
||
3626 | Serge | 599 | movi ecx, 8 |
2434 | Serge | 600 | push dword [CURRENT_TASK+edi+TASKDATA.pid]; PID |
601 | push 2 |
||
602 | call debugger_notify |
||
603 | pop ecx |
||
604 | pop ecx |
||
40 | halyavin | 605 | .nodebug: |
2434 | Serge | 606 | popad |
40 | halyavin | 607 | |
2434 | Serge | 608 | mov ebx, [.slot] |
609 | shl ebx, 8 |
||
610 | push ebx |
||
611 | mov ebx, [SLOT_BASE+ebx+APPDATA.pl0_stack] |
||
1 | ha | 612 | |
2434 | Serge | 613 | stdcall kernel_free, ebx |
1 | ha | 614 | |
2434 | Serge | 615 | pop ebx |
616 | mov ebx, [SLOT_BASE+ebx+APPDATA.cur_dir] |
||
617 | stdcall kernel_free, ebx |
||
521 | diamond | 618 | |
2434 | Serge | 619 | mov edi, [.slot] |
620 | shl edi, 8 |
||
621 | add edi, SLOT_BASE |
||
465 | serge | 622 | |
2434 | Serge | 623 | mov eax, [edi+APPDATA.io_map] |
624 | cmp eax, [SLOT_BASE+256+APPDATA.io_map] |
||
625 | je @F |
||
626 | call free_page |
||
465 | serge | 627 | @@: |
2434 | Serge | 628 | mov eax, [edi+APPDATA.io_map+4] |
629 | cmp eax, [SLOT_BASE+256+APPDATA.io_map+4] |
||
630 | je @F |
||
631 | call free_page |
||
465 | serge | 632 | @@: |
2434 | Serge | 633 | mov eax, 0x20202020 |
634 | stosd |
||
635 | stosd |
||
636 | stosd |
||
637 | mov ecx, 244/4 |
||
638 | xor eax, eax |
||
639 | rep stosd |
||
1 | ha | 640 | |
102 | poddubny | 641 | ; activate window |
2434 | Serge | 642 | movzx eax, word [WIN_STACK + esi*2] |
643 | cmp eax, [TASK_COUNT] |
||
644 | jne .dont_activate |
||
1056 | Galkov | 645 | pushad |
102 | poddubny | 646 | .check_next_window: |
2434 | Serge | 647 | dec eax |
648 | cmp eax, 1 |
||
649 | jbe .nothing_to_activate |
||
650 | lea esi, [WIN_POS+eax*2] |
||
651 | movzx edi, word [esi] ; edi = process |
||
652 | shl edi, 5 |
||
653 | cmp [CURRENT_TASK + edi + TASKDATA.state], byte 9 ; skip dead slots |
||
654 | je .check_next_window |
||
655 | add edi, window_data |
||
154 | diamond | 656 | ; \begin{diamond}[19.09.2006] |
657 | ; skip minimized windows |
||
2434 | Serge | 658 | test [edi + WDATA.fl_wstate], WSTATE_MINIMIZED |
659 | jnz .check_next_window |
||
154 | diamond | 660 | ; \end{diamond} |
2434 | Serge | 661 | call waredraw |
102 | poddubny | 662 | .nothing_to_activate: |
1056 | Galkov | 663 | popad |
102 | poddubny | 664 | .dont_activate: |
665 | |||
1056 | Galkov | 666 | push esi ; remove hd1 & cd & flp reservation |
667 | shl esi, 5 |
||
668 | mov esi, [esi+CURRENT_TASK+TASKDATA.pid] |
||
669 | cmp [cd_status], esi |
||
670 | jnz @f |
||
671 | call free_cd_channel |
||
1306 | Lrz | 672 | and [cd_status], 0 |
92 | diamond | 673 | @@: |
1056 | Galkov | 674 | pop esi |
675 | cmp [bgrlockpid], esi |
||
676 | jnz @f |
||
677 | and [bgrlockpid], 0 |
||
1306 | Lrz | 678 | and [bgrlock], 0 |
546 | diamond | 679 | @@: |
1 | ha | 680 | |
2434 | Serge | 681 | pusha ; remove all port reservations |
682 | mov edx, esi |
||
683 | shl edx, 5 |
||
684 | add edx, CURRENT_TASK |
||
685 | mov edx, [edx+TASKDATA.pid] |
||
1 | ha | 686 | |
687 | rmpr0: |
||
688 | |||
2434 | Serge | 689 | mov esi, [RESERVED_PORTS] |
1 | ha | 690 | |
2434 | Serge | 691 | test esi, esi |
692 | jz rmpr9 |
||
1 | ha | 693 | |
694 | rmpr3: |
||
695 | |||
2434 | Serge | 696 | mov edi, esi |
697 | shl edi, 4 |
||
698 | add edi, RESERVED_PORTS |
||
1 | ha | 699 | |
2434 | Serge | 700 | cmp edx, [edi] |
701 | je rmpr4 |
||
1 | ha | 702 | |
2434 | Serge | 703 | dec esi |
704 | jnz rmpr3 |
||
1 | ha | 705 | |
2434 | Serge | 706 | jmp rmpr9 |
1 | ha | 707 | |
708 | rmpr4: |
||
709 | |||
2434 | Serge | 710 | mov ecx, 256 |
711 | sub ecx, esi |
||
712 | shl ecx, 4 |
||
1 | ha | 713 | |
2434 | Serge | 714 | mov esi, edi |
715 | add esi, 16 |
||
716 | cld |
||
717 | rep movsb |
||
1 | ha | 718 | |
2434 | Serge | 719 | dec dword [RESERVED_PORTS] |
1 | ha | 720 | |
2434 | Serge | 721 | jmp rmpr0 |
1 | ha | 722 | |
723 | rmpr9: |
||
724 | |||
2434 | Serge | 725 | popa |
726 | mov edi, esi ; do not run this process slot |
||
727 | shl edi, 5 |
||
728 | mov [edi+CURRENT_TASK + TASKDATA.state], byte 9 |
||
40 | halyavin | 729 | ; debugger test - terminate all debuggees |
2434 | Serge | 730 | mov eax, 2 |
731 | mov ecx, SLOT_BASE+2*0x100+APPDATA.debugger_slot |
||
40 | halyavin | 732 | .xd0: |
2434 | Serge | 733 | cmp eax, [TASK_COUNT] |
734 | ja .xd1 |
||
735 | cmp dword [ecx], esi |
||
736 | jnz @f |
||
737 | and dword [ecx], 0 |
||
738 | pushad |
||
739 | xchg eax, ecx |
||
740 | mov ebx, 2 |
||
741 | call sys_system |
||
742 | popad |
||
40 | halyavin | 743 | @@: |
2434 | Serge | 744 | inc eax |
745 | add ecx, 0x100 |
||
746 | jmp .xd0 |
||
40 | halyavin | 747 | .xd1: |
1 | ha | 748 | ; call systest |
2434 | Serge | 749 | sti ; .. and life goes on |
1 | ha | 750 | |
2434 | Serge | 751 | mov eax, [draw_limits.left] |
752 | mov ebx, [draw_limits.top] |
||
753 | mov ecx, [draw_limits.right] |
||
754 | mov edx, [draw_limits.bottom] |
||
755 | call calculatescreen |
||
756 | xor eax, eax |
||
757 | xor esi, esi |
||
758 | call redrawscreen |
||
1 | ha | 759 | |
3555 | Serge | 760 | call unlock_application_table |
506 | mikedld | 761 | ;mov esi,process_terminated |
762 | ;call sys_msg_board_str |
||
2434 | Serge | 763 | add esp, 4 |
764 | ret |
||
345 | serge | 765 | restore .slot |
1 | ha | 766 | |
2987 | Serge | 767 | ;build_scheduler: |
768 | ; mov esi, boot_sched_1 |
||
769 | ; call boot_log |
||
770 | ; call build_process_gdt_tss_pointer |
||
1 | ha | 771 | |
2987 | Serge | 772 | ; mov esi,boot_sched_2 |
773 | ; call boot_log |
||
774 | ; ret |
||
3500 | Serge | 775 | |
776 | ; Three following procedures are used to guarantee that |
||
777 | ; some part of kernel code will not be terminated from outside |
||
778 | ; while it is running. |
||
779 | ; Note: they do not protect a thread from terminating due to errors inside |
||
780 | ; the thread; accessing a nonexisting memory would still terminate it. |
||
781 | |||
782 | ; First two procedures must be used in pair by thread-to-be-protected |
||
783 | ; to signal the beginning and the end of an important part. |
||
784 | ; It is OK to have nested areas. |
||
785 | |||
786 | ; The last procedure must be used by outside wanna-be-terminators; |
||
787 | ; if it is safe to terminate the given thread immediately, it returns eax=1; |
||
788 | ; otherwise, it returns eax=0 and notifies the target thread that it should |
||
789 | ; terminate itself when leaving a critical area (the last critical area if |
||
790 | ; they are nested). |
||
791 | |||
792 | ; Implementation. Those procedures use one dword in APPDATA for the thread, |
||
793 | ; APPDATA.terminate_protection. |
||
794 | ; * The upper bit is 1 during normal operations and 0 when terminate is requested. |
||
795 | ; * Other bits form a number = depth of critical regions, |
||
796 | ; plus 1 if the upper bit is 1. |
||
797 | ; * When this dword goes to zero, the thread should be destructed, |
||
798 | ; and the procedure in which it happened becomes responsible for destruction. |
||
799 | |||
800 | ; Enter critical area. Called by thread which wants to be protected. |
||
801 | proc protect_from_terminate |
||
802 | mov edx, [current_slot] |
||
803 | ; Atomically increment depth of critical areas and get the old value. |
||
804 | mov eax, 1 |
||
805 | lock xadd [edx+APPDATA.terminate_protection], eax |
||
806 | ; If the old value was zero, somebody has started to terminate us, |
||
807 | ; so we are destructing and cannot do anything protected. |
||
808 | ; Otherwise, return to the caller. |
||
809 | test eax, eax |
||
810 | jz @f |
||
811 | ret |
||
812 | @@: |
||
813 | ; Wait for somebody to finish us. |
||
814 | call change_task |
||
815 | jmp @b |
||
816 | endp |
||
817 | |||
818 | ; Leave critical area. Called by thread which wants to be protected. |
||
819 | proc unprotect_from_terminate |
||
820 | mov edx, [current_slot] |
||
821 | ; Atomically decrement depth of critical areas. |
||
822 | lock dec [edx+APPDATA.terminate_protection] |
||
823 | ; If the result of decrement is zero, somebody has requested termination, |
||
824 | ; but at that moment we were inside a critical area; terminate now. |
||
825 | jz sys_end |
||
826 | ; Otherwise, return to the caller. |
||
827 | ret |
||
828 | endp |
||
829 | |||
830 | ; Request termination of thread identified by edx = SLOT_BASE + slot*256. |
||
831 | ; Called by anyone. |
||
832 | proc request_terminate |
||
833 | xor eax, eax ; set return value |
||
834 | ; Atomically clear the upper bit. If it was already zero, then |
||
835 | ; somebody has requested termination before us, so just exit. |
||
836 | lock btr [edx+APPDATA.terminate_protection], 31 |
||
837 | jnc .unsafe |
||
838 | ; Atomically decrement depth of critical areas. |
||
839 | lock dec [edx+APPDATA.terminate_protection] |
||
840 | ; If the result of decrement is nonzero, the target thread is inside a |
||
841 | ; critical area; leave termination to leaving that area. |
||
842 | jnz .unsafe |
||
843 | ; Otherwise, it is safe to kill the target now and the caller is responsible |
||
844 | ; for this. Return eax=1. |
||
845 | inc eax |
||
846 | .unsafe: |
||
847 | ret |
||
848 | endp |
||
849 |