Rev 10002 | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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10051 | ace_dent | 3 | ;; Copyright (C) KolibriOS team 2004-2024. All rights reserved. ;; |
6793 | pathoswith | 4 | ;; Distributed under terms of the GNU General Public License. ;; |
2288 | clevermous | 5 | ;; ;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | |||
9975 | Jurgen | 9 | struct EXCEPT_STACK |
10 | RegEIP dd ? |
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11 | ExcCode dd ? ; only exception 12 overflow stack |
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12 | OldESP dd ? |
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13 | RegCR2 dd ? |
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14 | LockAccess dd ? |
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15 | ends |
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16 | |||
2288 | clevermous | 17 | align 4 ;3A08 |
18 | build_interrupt_table: |
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19 | mov edi, idts |
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20 | mov esi, sys_int |
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21 | mov ecx, 0x40 |
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22 | mov eax, (10001110b shl 24) + os_code |
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23 | @@: |
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8050 | rgimad | 24 | movsw ; low word of code-entry |
25 | stosd ; interrupt gate type : os_code selector |
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26 | movsw ; high word of code-entry |
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2288 | clevermous | 27 | loop @b |
8050 | rgimad | 28 | movsd ; copy low dword of trap gate for int 0x40 |
29 | movsd ; copy high dword of trap gate for int 0x40 |
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7733 | dunkaist | 30 | mov ecx, 23 |
31 | mov eax, (10001110b shl 24) + os_code |
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32 | @@: |
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8050 | rgimad | 33 | movsw ; low word of code-entry |
34 | stosd ; interrupt gate type : os_code selector |
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35 | movsw ; high word of code-entry |
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7733 | dunkaist | 36 | loop @b |
2288 | clevermous | 37 | lidt [esi] |
38 | ret |
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39 | |||
40 | iglobal |
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41 | align 4 |
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42 | sys_int: |
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8050 | rgimad | 43 | ; exception handlers addresses (for interrupt gate construction) |
2288 | clevermous | 44 | dd e0,e1,e2,e3,e4,e5,e6,except_7 ; SEE: core/fpu.inc |
45 | dd e8,e9,e10,e11,e12,e13,page_fault_exc,e15 |
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46 | dd e16, e17,e18, e19 |
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47 | times 12 dd unknown_interrupt ;int_20..int_31 |
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48 | |||
8050 | rgimad | 49 | ; interrupt handlers addresses (for interrupt gate construction) |
7733 | dunkaist | 50 | ; 0x20+ are IRQ handlers |
51 | dd irq0 |
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52 | rept 12 irqn:1 \{dd irq_serv.irq_\#irqn\} |
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53 | dd irqD |
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54 | rept 18 irqn:14 \{dd irq_serv.irq_\#irqn\} |
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2288 | clevermous | 55 | |
7733 | dunkaist | 56 | ; int_0x40 gate trap (for directly copied) |
57 | dw i40 and 0xFFFF, os_code, 11101111b shl 8, i40 shr 16 |
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2288 | clevermous | 58 | |
7733 | dunkaist | 59 | rept 23 irqn:33 \{dd irq_serv.irq_\#irqn\} |
60 | |||
2288 | clevermous | 61 | idtreg: ; data for LIDT instruction (!!! must be immediately below sys_int data) |
62 | dw 2*($-sys_int-4)-1 |
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8050 | rgimad | 63 | dd idts ; 0x8000B100 |
64 | dw 0 ; alignment |
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2288 | clevermous | 65 | |
66 | msg_fault_sel dd msg_exc_8,msg_exc_u,msg_exc_a,msg_exc_b |
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6817 | dunkaist | 67 | dd msg_exc_c,msg_exc_d,msg_exc_e,msg_exc_u |
68 | dd msg_exc_u,msg_exc_11 |
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2288 | clevermous | 69 | |
70 | msg_exc_8 db "Double fault", 0 |
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71 | msg_exc_u db "Undefined Exception", 0 |
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72 | msg_exc_a db "Invalid TSS", 0 |
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73 | msg_exc_b db "Segment not present", 0 |
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74 | msg_exc_c db "Stack fault", 0 |
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75 | msg_exc_d db "General protection fault", 0 |
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76 | msg_exc_e db "Page fault", 0 |
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6817 | dunkaist | 77 | msg_exc_11 db "Alignment Check", 0 |
2288 | clevermous | 78 | |
3342 | yogev_ezra | 79 | if lang eq sp |
3344 | yogev_ezra | 80 | include 'core/sys32-sp.inc' |
3342 | yogev_ezra | 81 | else |
82 | msg_sel_ker db "kernel", 0 |
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83 | msg_sel_app db "application", 0 |
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3309 | esevece | 84 | end if |
2288 | clevermous | 85 | |
86 | endg |
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87 | |||
88 | macro save_ring3_context { |
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89 | pushad |
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90 | } |
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91 | macro restore_ring3_context { |
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92 | popad |
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93 | } |
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94 | macro exc_wo_code [num] { |
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95 | e#num : |
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96 | save_ring3_context |
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97 | mov bl, num |
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98 | jmp exc_c |
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99 | } exc_wo_code 0,1,2,3,4,5,6,15,16,19 |
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100 | |||
101 | macro exc_w_code [num] { |
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102 | e#num : |
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103 | add esp, 4 |
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104 | save_ring3_context |
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105 | mov bl, num |
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106 | jmp exc_c |
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107 | } exc_w_code 8,9,10,11,12,13,17,18 |
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108 | |||
109 | |||
110 | uglobal |
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111 | pf_err_code dd ? |
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112 | endg |
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113 | |||
8050 | rgimad | 114 | page_fault_exc: ; foolproof: selectors are clobbered ... |
115 | pop [ss:pf_err_code] ; actually, until the next #PF |
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10002 | Jurgen | 116 | |
117 | cmp edi, CONTROL_EXCEPTION ; equ 'EXPT' |
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118 | jne .no_ctrl_exc |
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119 | bt dword [esp], 31 |
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120 | jc .setret |
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121 | test esi, esi |
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122 | jl .no_ctrl_exc |
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123 | .setret: |
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124 | mov [esp], esi |
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125 | iret |
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126 | |||
127 | .no_ctrl_exc: |
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2288 | clevermous | 128 | save_ring3_context |
129 | mov bl, 14 |
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130 | |||
8050 | rgimad | 131 | exc_c: ; exceptions (all but 7th - #NM) |
132 | ; stack frame when exception/interrupt from ring3 + pushad (i.e right here) |
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2288 | clevermous | 133 | reg_ss equ esp+0x30 |
134 | reg_esp3 equ esp+0x2C |
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135 | reg_eflags equ esp+0x28 |
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136 | reg_cs3 equ esp+0x24 |
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137 | reg_eip equ esp+0x20 |
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8050 | rgimad | 138 | ; this if frame from pushad |
2288 | clevermous | 139 | reg_eax equ esp+0x1C |
140 | reg_ecx equ esp+0x18 |
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141 | reg_edx equ esp+0x14 |
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142 | reg_ebx equ esp+0x10 |
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143 | reg_esp0 equ esp+0x0C |
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144 | reg_ebp equ esp+0x08 |
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145 | reg_esi equ esp+0x04 |
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146 | reg_edi equ esp+0x00 |
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147 | |||
8050 | rgimad | 148 | mov ax, app_data ; exception |
149 | mov ds, ax ; load proper values |
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150 | mov es, ax ; to registers |
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8051 | rgimad | 151 | cld ; clear the direction flag |
2288 | clevermous | 152 | movzx ebx, bl |
153 | ; redirect to V86 manager? (EFLAGS & 0x20000) != 0? |
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154 | test byte[reg_eflags+2], 2 |
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155 | jnz v86_exc_c |
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8050 | rgimad | 156 | cmp bl, 14 ; #PF |
2288 | clevermous | 157 | jne @f |
158 | call page_fault_handler ; SEE: core/memory.inc |
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159 | @@: |
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160 | mov esi, [current_slot] |
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9715 | Doczom | 161 | btr [esi + APPDATA.except_mask], ebx |
2288 | clevermous | 162 | jnc @f |
9715 | Doczom | 163 | mov eax, [esi + APPDATA.exc_handler] |
2288 | clevermous | 164 | test eax, eax |
165 | jnz IRetToUserHook |
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166 | @@: |
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167 | cli |
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9715 | Doczom | 168 | mov eax, [esi + APPDATA.debugger_slot] |
2288 | clevermous | 169 | test eax, eax |
170 | jnz .debug |
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6793 | pathoswith | 171 | ; not debuggee => say error and terminate |
9709 | Doczom | 172 | call show_error_parameters ; this function output in edx = current_slot |
2288 | clevermous | 173 | sti |
9709 | Doczom | 174 | mov [edx + APPDATA.state], TSTATE_TERMINATING |
3534 | clevermous | 175 | call wakeup_osloop |
3615 | clevermous | 176 | call change_task |
177 | ; If we're here, then the main OS thread has crashed before initializing IDLE thread. |
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178 | ; Or they both have crashed. Anyway, things are hopelessly broken. |
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179 | hlt |
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180 | jmp $-1 |
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2288 | clevermous | 181 | .debug: |
182 | ; we are debugged process, notify debugger and suspend ourself |
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183 | ; eax=debugger PID |
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184 | mov ecx, 1 ; debug_message code=other_exception |
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185 | cmp bl, 1 ; #DB |
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186 | jne .notify ; notify debugger and suspend ourself |
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187 | mov ebx, dr6 ; debug_message data=DR6_image |
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188 | xor edx, edx |
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189 | mov dr6, edx |
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190 | mov edx, dr7 |
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191 | mov cl, not 8 |
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192 | .l1: |
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193 | shl dl, 2 |
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194 | jc @f |
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195 | and bl, cl |
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196 | @@: |
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197 | sar cl, 1 |
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198 | jc .l1 |
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199 | mov cl, 3 ; debug_message code=debug_exception |
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200 | .notify: |
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201 | push ebx ; debug_message data |
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9692 | Doczom | 202 | mov ebx, [current_slot] |
203 | push [ebx + APPDATA.tid] ; PID |
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2288 | clevermous | 204 | push ecx ; debug_message code ((here: ecx==1/3)) |
205 | mov cl, 12 ; debug_message size |
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206 | call debugger_notify ;; only ONE using, inline ??? SEE: core/debug.inc |
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207 | add esp, 12 |
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9709 | Doczom | 208 | mov edx, [current_slot] |
209 | mov [edx + APPDATA.state], TSTATE_RUN_SUSPENDED |
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2288 | clevermous | 210 | call change_task ; SEE: core/shed.inc |
211 | restore_ring3_context |
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212 | iretd |
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213 | |||
214 | IRetToUserHook: |
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9976 | Jurgen | 215 | cmp ebx, 12 |
216 | je .ex_stack |
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217 | cmp ebx, 14 |
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218 | jne .nostack |
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219 | mov ecx, cr2 |
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220 | sub ecx, [reg_esp3] |
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221 | jg .nostack |
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222 | add ecx, 1000h |
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223 | jl .nostack |
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224 | .ex_stack: |
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10002 | Jurgen | 225 | mov ecx, [esi+APPDATA.exc_reserve_stack] |
9976 | Jurgen | 226 | test ecx, ecx |
227 | jle .nostack |
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228 | xchg edi, eax |
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229 | sub ecx, sizeof.EXCEPT_STACK |
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230 | push ebx |
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231 | push 1 |
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232 | pop ebx |
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233 | .lock: |
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234 | lock bts [ecx+EXCEPT_STACK.LockAccess], 0 |
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235 | jnc .lock1 |
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236 | call delay_hs_unprotected |
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237 | jmp .lock |
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238 | .lock1: |
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239 | pop ebx |
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240 | cmp ebx, 14 |
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241 | jne .ex12 |
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242 | btr [esi+APPDATA.except_mask], 12 |
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243 | jc .ex_stack1 |
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244 | xchg eax, edi |
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245 | jmp .nostack |
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246 | .ex_stack1: |
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247 | bts [esi+APPDATA.except_mask], ebx |
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248 | dec ebx |
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249 | dec ebx |
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250 | .ex12: |
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251 | mov [ecx+EXCEPT_STACK.ExcCode], ebx |
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252 | mov eax, ecx |
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253 | xchg [reg_esp3], eax |
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254 | mov [ecx+EXCEPT_STACK.OldESP], eax |
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255 | mov eax, cr2 |
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256 | mov [ecx+EXCEPT_STACK.RegCR2], eax |
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257 | xchg edi, [reg_eip] |
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258 | mov [ecx+EXCEPT_STACK.RegEIP], edi |
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259 | jmp .end |
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260 | .nostack: |
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2288 | clevermous | 261 | xchg eax, [reg_eip] |
262 | sub dword[reg_esp3], 8 |
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263 | mov edi, [reg_esp3] |
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264 | stosd |
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265 | mov [edi], ebx |
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9976 | Jurgen | 266 | .end: |
2288 | clevermous | 267 | restore_ring3_context |
268 | ; simply return control to interrupted process |
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269 | unknown_interrupt: |
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270 | iretd |
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271 | |||
272 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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273 | ; bl - error vector |
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274 | show_error_parameters: |
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275 | cmp bl, 0x06 |
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276 | jnz .no_ud |
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277 | push ebx |
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278 | mov ebx, ud_user_message |
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279 | mov ebp, notifyapp |
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280 | call fs_execute_from_sysdir_param |
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281 | pop ebx |
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282 | .no_ud: |
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9692 | Doczom | 283 | mov edx, [current_slot];not scratched below |
3309 | esevece | 284 | if lang eq sp |
9692 | Doczom | 285 | DEBUGF 1, "K : Proceso - terminado forzado PID: %x [%s]\n", [edx + APPDATA.tid], [current_slot] |
3309 | esevece | 286 | else |
9692 | Doczom | 287 | DEBUGF 1, "K : Process - forced terminate PID: %x [%s]\n", [edx + APPDATA.tid], [current_slot] |
3309 | esevece | 288 | end if |
2288 | clevermous | 289 | cmp bl, 0x08 |
290 | jb .l0 |
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6817 | dunkaist | 291 | cmp bl, 0x11 |
2288 | clevermous | 292 | jbe .l1 |
293 | .l0: |
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294 | mov bl, 0x09 |
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295 | .l1: |
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296 | mov eax, [msg_fault_sel+ebx*4 - 0x08*4] |
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297 | DEBUGF 1, "K : %s\n", eax |
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298 | mov eax, [reg_cs3+4] |
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299 | mov edi, msg_sel_app |
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300 | mov ebx, [reg_esp3+4] |
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301 | cmp eax, app_code |
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302 | je @f |
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303 | mov edi, msg_sel_ker |
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304 | mov ebx, [reg_esp0+4] |
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305 | @@: |
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306 | DEBUGF 1, "K : EAX : %x EBX : %x ECX : %x\n", [reg_eax+4], [reg_ebx+4], [reg_ecx+4] |
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307 | DEBUGF 1, "K : EDX : %x ESI : %x EDI : %x\n", [reg_edx+4], [reg_esi+4], [reg_edi+4] |
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308 | DEBUGF 1, "K : EBP : %x EIP : %x ESP : %x\n", [reg_ebp+4], [reg_eip+4], ebx |
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309 | DEBUGF 1, "K : Flags : %x CS : %x (%s)\n", [reg_eflags+4], eax, edi |
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3911 | mario79 | 310 | |
3909 | mario79 | 311 | DEBUGF 1, "K : Stack dump:\n" |
3911 | mario79 | 312 | push eax ebx ecx edx |
313 | call .check_ESP |
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314 | test eax, eax |
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315 | jnz .error_ESP |
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316 | DEBUGF 1, "K : [ESP+00]: %x",[ebx] |
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317 | add ebx, 4 |
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318 | call .check_ESP |
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319 | test eax, eax |
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320 | jnz .error_ESP |
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321 | DEBUGF 1, " [ESP+04]: %x",[ebx] |
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322 | add ebx, 4 |
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323 | call .check_ESP |
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324 | test eax, eax |
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325 | jnz .error_ESP |
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5356 | serge | 326 | DEBUGF 1, " [ESP+08]: %x\n",[ebx] |
3911 | mario79 | 327 | add ebx, 4 |
328 | call .check_ESP |
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329 | test eax, eax |
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330 | jnz .error_ESP |
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331 | DEBUGF 1, "K : [ESP+12]: %x",[ebx] |
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332 | add ebx, 4 |
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333 | call .check_ESP |
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334 | test eax, eax |
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335 | jnz .error_ESP |
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336 | DEBUGF 1, " [ESP+16]: %x",[ebx] |
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337 | add ebx, 4 |
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338 | call .check_ESP |
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339 | test eax, eax |
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340 | jnz .error_ESP |
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341 | DEBUGF 1, " [ESP+20]: %x\n",[ebx] |
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342 | add ebx, 4 |
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343 | call .check_ESP |
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344 | test eax, eax |
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345 | jnz .error_ESP |
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346 | DEBUGF 1, "K : [ESP+24]: %x",[ebx] |
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347 | add ebx, 4 |
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348 | call .check_ESP |
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349 | test eax, eax |
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350 | jnz .error_ESP |
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351 | DEBUGF 1, " [ESP+28]: %x",[ebx] |
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352 | add ebx, 4 |
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353 | call .check_ESP |
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354 | test eax, eax |
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355 | jnz .error_ESP |
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5356 | serge | 356 | DEBUGF 1, " [ESP+32]: %x\n",[ebx] |
3911 | mario79 | 357 | pop edx ecx ebx eax |
2288 | clevermous | 358 | ret |
3911 | mario79 | 359 | .error_ESP: |
360 | pop edx ecx ebx eax |
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361 | DEBUGF 1, "\n" |
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362 | DEBUGF 1, "K : Unexpected end of the stack\n" |
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363 | ret |
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364 | ;-------------------------------------- |
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365 | .check_ESP: |
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366 | push ebx |
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367 | shr ebx, 12 |
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368 | mov ecx, ebx |
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369 | shr ecx, 10 |
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9715 | Doczom | 370 | mov edx, [master_tab + ecx*4] |
5356 | serge | 371 | test edx, PG_READ |
8050 | rgimad | 372 | jz .fail ; page table is not created |
373 | ; incorrect address in the program |
||
3911 | mario79 | 374 | |
9715 | Doczom | 375 | mov eax, [page_tabs + ebx*4] |
3911 | mario79 | 376 | test eax, 2 |
8050 | rgimad | 377 | jz .fail ; address not reserved for use. error |
5356 | serge | 378 | |
379 | pop ebx |
||
3911 | mario79 | 380 | xor eax, eax |
5356 | serge | 381 | ret |
382 | |||
3911 | mario79 | 383 | .fail: |
384 | pop ebx |
||
385 | xor eax, eax |
||
386 | dec eax |
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387 | ret |
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2288 | clevermous | 388 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
389 | |||
390 | restore reg_ss |
||
391 | restore reg_esp3 |
||
392 | restore reg_eflags |
||
393 | restore reg_cs |
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394 | restore reg_eip |
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395 | restore reg_eax |
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396 | restore reg_ecx |
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397 | restore reg_edx |
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398 | restore reg_ebx |
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399 | restore reg_esp0 |
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400 | restore reg_ebp |
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401 | restore reg_esi |
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402 | restore reg_edi |
||
403 | |||
404 | |||
405 | align 4 |
||
3534 | clevermous | 406 | lock_application_table: |
407 | push eax ecx edx |
||
408 | mov ecx, application_table_mutex |
||
409 | call mutex_lock |
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2288 | clevermous | 410 | |
9828 | Doczom | 411 | mov eax, [current_slot] |
412 | mov eax, [eax + APPDATA.tid] |
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2288 | clevermous | 413 | |
3534 | clevermous | 414 | mov [application_table_owner], eax |
2288 | clevermous | 415 | |
3534 | clevermous | 416 | pop edx ecx eax |
2288 | clevermous | 417 | |
418 | ret |
||
419 | |||
420 | align 4 |
||
3534 | clevermous | 421 | unlock_application_table: |
422 | push eax ecx edx |
||
2288 | clevermous | 423 | |
3534 | clevermous | 424 | mov [application_table_owner], 0 |
425 | mov ecx, application_table_mutex |
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426 | call mutex_unlock |
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2288 | clevermous | 427 | |
3534 | clevermous | 428 | pop edx ecx eax |
2288 | clevermous | 429 | |
430 | ret |
||
431 | |||
8050 | rgimad | 432 | ; sysfn 64 implementation |
2288 | clevermous | 433 | align 4 |
434 | sys_resize_app_memory: |
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8050 | rgimad | 435 | ; in: eax = 64 - function number |
436 | ; ebx = 1 - number of its only subfunction |
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437 | ; ecx = new amount of memory |
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438 | ; out: |
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439 | ; eax = 0 - success |
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440 | ; eax = 1 - out of memory |
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2288 | clevermous | 441 | |
442 | ; cmp eax,1 |
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443 | dec ebx |
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444 | jnz .no_application_mem_resize |
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4313 | mario79 | 445 | |
446 | mov eax, [pg_data.pages_free] |
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447 | shl eax, 12 |
||
448 | cmp eax, ecx |
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449 | jae @f |
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450 | |||
451 | xor eax, eax |
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452 | inc eax |
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453 | jmp .store_result |
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454 | @@: |
||
2288 | clevermous | 455 | stdcall new_mem_resize, ecx |
4313 | mario79 | 456 | .store_result: |
9831 | dunkaist | 457 | mov [esp + SYSCALL_STACK.eax], eax |
2288 | clevermous | 458 | .no_application_mem_resize: |
459 | ret |
||
460 | |||
461 | iglobal |
||
462 | ; process_terminating db 'K : Process - terminating',13,10,0 |
||
463 | ; process_terminated db 'K : Process - done',13,10,0 |
||
464 | msg_obj_destroy db 'K : destroy app object',13,10,0 |
||
465 | endg |
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466 | |||
467 | ; param |
||
468 | ; esi= slot |
||
469 | |||
470 | align 4 |
||
471 | terminate: ; terminate application |
||
5130 | serge | 472 | destroy_thread: |
2288 | clevermous | 473 | |
5130 | serge | 474 | .slot equ esp+4 ;locals |
475 | .process equ esp ;ptr to parent process |
||
2288 | clevermous | 476 | |
5130 | serge | 477 | |
2288 | clevermous | 478 | push esi ;save .slot |
479 | |||
9709 | Doczom | 480 | shl esi, BSF sizeof.APPDATA |
9715 | Doczom | 481 | mov edx, [SLOT_BASE + esi + APPDATA.process] |
5130 | serge | 482 | test edx, edx |
483 | jnz @F |
||
9709 | Doczom | 484 | mov [SLOT_BASE + esi + APPDATA.state], TSTATE_FREE |
2288 | clevermous | 485 | pop esi |
486 | ret |
||
487 | @@: |
||
5130 | serge | 488 | push edx ;save .process |
9715 | Doczom | 489 | lea edx, [SLOT_BASE + esi] |
3534 | clevermous | 490 | call scheduler_remove_thread |
491 | call lock_application_table |
||
2288 | clevermous | 492 | |
493 | ; if the process is in V86 mode... |
||
494 | mov eax, [.slot] |
||
9709 | Doczom | 495 | shl eax, BSF sizeof.APPDATA |
9715 | Doczom | 496 | mov esi, [SLOT_BASE + eax + APPDATA.pl0_stack] |
2288 | clevermous | 497 | add esi, RING0_STACK_SIZE |
9715 | Doczom | 498 | cmp [SLOT_BASE + eax + APPDATA.saved_esp0], esi |
2288 | clevermous | 499 | jz .nov86 |
500 | ; ...it has page directory for V86 mode |
||
9715 | Doczom | 501 | mov esi, [SLOT_BASE + eax + APPDATA.saved_esp0] |
2288 | clevermous | 502 | mov ecx, [esi+4] |
9715 | Doczom | 503 | mov [SLOT_BASE + eax + APPDATA.process], ecx |
2288 | clevermous | 504 | ; ...and I/O permission map for V86 mode |
505 | mov ecx, [esi+12] |
||
9715 | Doczom | 506 | mov [SLOT_BASE + eax + APPDATA.io_map], ecx |
2288 | clevermous | 507 | mov ecx, [esi+8] |
9715 | Doczom | 508 | mov [SLOT_BASE + eax + APPDATA.io_map+4], ecx |
2288 | clevermous | 509 | .nov86: |
8050 | rgimad | 510 | ; destroy per-thread kernel objects |
2288 | clevermous | 511 | mov esi, [.slot] |
9709 | Doczom | 512 | shl esi, BSF sizeof.APPDATA |
9715 | Doczom | 513 | add esi, SLOT_BASE + APP_OBJ_OFFSET |
2288 | clevermous | 514 | @@: |
9715 | Doczom | 515 | mov eax, [esi + APPOBJ.fd] |
2288 | clevermous | 516 | test eax, eax |
517 | jz @F |
||
518 | |||
519 | cmp eax, esi |
||
520 | je @F |
||
521 | |||
522 | push esi |
||
9715 | Doczom | 523 | call [eax + APPOBJ.destroy] |
2288 | clevermous | 524 | DEBUGF 1,"%s",msg_obj_destroy |
525 | pop esi |
||
526 | jmp @B |
||
527 | @@: |
||
528 | mov esi, [.slot] |
||
3534 | clevermous | 529 | cmp [fpu_owner], esi ; if user fpu last -> fpu user = 2 |
2288 | clevermous | 530 | jne @F |
531 | |||
3534 | clevermous | 532 | mov [fpu_owner], 2 |
9715 | Doczom | 533 | mov eax, [SLOT_BASE + sizeof.APPDATA*2 + APPDATA.fpu_state] |
2288 | clevermous | 534 | clts |
535 | bt [cpu_caps], CAPS_SSE |
||
536 | jnc .no_SSE |
||
537 | fxrstor [eax] |
||
538 | jmp @F |
||
539 | .no_SSE: |
||
540 | fnclex |
||
541 | frstor [eax] |
||
542 | @@: |
||
543 | |||
544 | mov [KEY_COUNT], byte 0 ; empty keyboard buffer |
||
545 | mov [BTN_COUNT], byte 0 ; empty button buffer |
||
546 | |||
547 | |||
548 | ; remove defined hotkeys |
||
549 | mov eax, hotkey_list |
||
550 | .loop: |
||
551 | cmp [eax+8], esi |
||
552 | jnz .cont |
||
553 | mov ecx, [eax] |
||
554 | jecxz @f |
||
555 | push dword [eax+12] |
||
556 | pop dword [ecx+12] |
||
557 | @@: |
||
558 | mov ecx, [eax+12] |
||
559 | push dword [eax] |
||
560 | pop dword [ecx] |
||
561 | xor ecx, ecx |
||
562 | mov [eax], ecx |
||
563 | mov [eax+4], ecx |
||
564 | mov [eax+8], ecx |
||
565 | mov [eax+12], ecx |
||
566 | .cont: |
||
567 | add eax, 16 |
||
568 | cmp eax, hotkey_list+256*16 |
||
569 | jb .loop |
||
2709 | mario79 | 570 | ; get process PID |
571 | mov eax, esi |
||
9692 | Doczom | 572 | shl eax, BSF sizeof.APPDATA |
573 | mov eax, [eax + SLOT_BASE + APPDATA.tid] |
||
2709 | mario79 | 574 | ; compare current lock input with process PID |
575 | cmp eax, [PID_lock_input] |
||
576 | jne @f |
||
577 | |||
578 | xor eax, eax |
||
579 | mov [PID_lock_input], eax |
||
580 | @@: |
||
2288 | clevermous | 581 | ; remove hotkeys in buffer |
582 | mov eax, hotkey_buffer |
||
583 | .loop2: |
||
584 | cmp [eax], esi |
||
585 | jnz .cont2 |
||
586 | and dword [eax+4], 0 |
||
587 | and dword [eax], 0 |
||
588 | .cont2: |
||
589 | add eax, 8 |
||
590 | cmp eax, hotkey_buffer+120*8 |
||
591 | jb .loop2 |
||
592 | |||
593 | mov ecx, esi ; remove buttons |
||
9910 | Doczom | 594 | .bnewba2: |
2288 | clevermous | 595 | mov edi, [BTN_ADDR] |
596 | mov eax, edi |
||
597 | cld |
||
598 | movzx ebx, word [edi] |
||
599 | inc bx |
||
9910 | Doczom | 600 | .bnewba: |
2288 | clevermous | 601 | dec bx |
9910 | Doczom | 602 | jz .bnmba |
2288 | clevermous | 603 | add eax, 0x10 |
604 | cmp cx, [eax] |
||
9910 | Doczom | 605 | jnz .bnewba |
2288 | clevermous | 606 | pusha |
607 | mov ecx, ebx |
||
608 | inc ecx |
||
609 | shl ecx, 4 |
||
610 | mov ebx, eax |
||
611 | add eax, 0x10 |
||
612 | call memmove |
||
613 | dec dword [edi] |
||
614 | popa |
||
9910 | Doczom | 615 | jmp .bnewba2 |
616 | .bnmba: |
||
2288 | clevermous | 617 | |
618 | pusha ; save window coordinates for window restoring |
||
619 | cld |
||
8858 | rgimad | 620 | shl esi, BSF sizeof.WDATA |
2288 | clevermous | 621 | add esi, window_data |
9715 | Doczom | 622 | mov eax, [esi + WDATA.box.left] |
2288 | clevermous | 623 | mov [draw_limits.left], eax |
9715 | Doczom | 624 | add eax, [esi + WDATA.box.width] |
2288 | clevermous | 625 | mov [draw_limits.right], eax |
9715 | Doczom | 626 | mov eax, [esi + WDATA.box.top] |
2288 | clevermous | 627 | mov [draw_limits.top], eax |
9715 | Doczom | 628 | add eax, [esi + WDATA.box.height] |
2288 | clevermous | 629 | mov [draw_limits.bottom], eax |
630 | |||
631 | xor eax, eax |
||
8858 | rgimad | 632 | mov edi, esi |
633 | mov ecx, sizeof.WDATA/4 |
||
634 | rep stosd |
||
2288 | clevermous | 635 | popa |
636 | |||
637 | ; debuggee test |
||
638 | pushad |
||
639 | mov edi, esi |
||
9692 | Doczom | 640 | shl edi, BSF sizeof.APPDATA |
641 | mov eax, [SLOT_BASE + edi + APPDATA.debugger_slot] |
||
2288 | clevermous | 642 | test eax, eax |
643 | jz .nodebug |
||
3598 | clevermous | 644 | movi ecx, 8 |
9692 | Doczom | 645 | push dword [SLOT_BASE + edi + APPDATA.tid]; PID |
2288 | clevermous | 646 | push 2 |
647 | call debugger_notify |
||
648 | pop ecx |
||
649 | pop ecx |
||
650 | .nodebug: |
||
651 | popad |
||
652 | |||
653 | mov ebx, [.slot] |
||
9709 | Doczom | 654 | shl ebx, BSF sizeof.APPDATA |
2288 | clevermous | 655 | push ebx |
9715 | Doczom | 656 | mov ebx, [SLOT_BASE + ebx + APPDATA.pl0_stack] |
2288 | clevermous | 657 | |
658 | stdcall kernel_free, ebx |
||
659 | |||
660 | pop ebx |
||
9715 | Doczom | 661 | mov ebx, [SLOT_BASE + ebx + APPDATA.cur_dir] |
2288 | clevermous | 662 | stdcall kernel_free, ebx |
663 | |||
664 | mov edi, [.slot] |
||
9709 | Doczom | 665 | shl edi, BSF sizeof.APPDATA |
2288 | clevermous | 666 | add edi, SLOT_BASE |
667 | |||
9715 | Doczom | 668 | mov eax, [edi + APPDATA.io_map] |
669 | cmp eax, [SLOT_BASE + sizeof.APPDATA+APPDATA.io_map] |
||
2288 | clevermous | 670 | je @F |
671 | call free_page |
||
672 | @@: |
||
673 | mov eax, [edi+APPDATA.io_map+4] |
||
8093 | dunkaist | 674 | cmp eax, [SLOT_BASE+sizeof.APPDATA+APPDATA.io_map+4] |
2288 | clevermous | 675 | je @F |
676 | call free_page |
||
677 | @@: |
||
9715 | Doczom | 678 | lea ebx, [edi + APPDATA.list] |
5130 | serge | 679 | list_del ebx ;destroys edx, ecx |
680 | |||
2288 | clevermous | 681 | ; activate window |
682 | movzx eax, word [WIN_STACK + esi*2] |
||
8866 | rgimad | 683 | cmp eax, [thread_count] |
2288 | clevermous | 684 | jne .dont_activate |
685 | pushad |
||
686 | .check_next_window: |
||
687 | dec eax |
||
688 | cmp eax, 1 |
||
689 | jbe .nothing_to_activate |
||
9715 | Doczom | 690 | lea esi, [WIN_POS + eax*2] |
2288 | clevermous | 691 | movzx edi, word [esi] ; edi = process |
9709 | Doczom | 692 | shl edi, BSF sizeof.APPDATA |
693 | cmp [SLOT_BASE + edi + APPDATA.state], TSTATE_FREE ; skip free slots |
||
2288 | clevermous | 694 | je .check_next_window |
9926 | Doczom | 695 | shr edi, (BSF sizeof.APPDATA - BSF sizeof.WDATA) |
2288 | clevermous | 696 | add edi, window_data |
697 | ; \begin{diamond}[19.09.2006] |
||
698 | ; skip minimized windows |
||
699 | test [edi + WDATA.fl_wstate], WSTATE_MINIMIZED |
||
700 | jnz .check_next_window |
||
701 | ; \end{diamond} |
||
702 | call waredraw |
||
703 | .nothing_to_activate: |
||
704 | popad |
||
705 | .dont_activate: |
||
706 | |||
707 | push esi ; remove hd1 & cd & flp reservation |
||
9692 | Doczom | 708 | shl esi, BSF sizeof.APPDATA |
9715 | Doczom | 709 | mov esi, [SLOT_BASE + esi + APPDATA.tid] |
2288 | clevermous | 710 | cmp [cd_status], esi |
711 | jnz @f |
||
712 | call free_cd_channel |
||
713 | and [cd_status], 0 |
||
714 | @@: |
||
715 | pop esi |
||
716 | cmp [bgrlockpid], esi |
||
717 | jnz @f |
||
718 | and [bgrlockpid], 0 |
||
719 | and [bgrlock], 0 |
||
720 | @@: |
||
721 | |||
722 | pusha ; remove all port reservations |
||
723 | mov edx, esi |
||
9692 | Doczom | 724 | shl edx, BSF sizeof.APPDATA |
9715 | Doczom | 725 | mov edx, [SLOT_BASE + edx + APPDATA.tid] |
2288 | clevermous | 726 | |
9910 | Doczom | 727 | .rmpr0: |
2288 | clevermous | 728 | mov esi, [RESERVED_PORTS] |
729 | |||
730 | test esi, esi |
||
9910 | Doczom | 731 | jz .rmpr9 |
2288 | clevermous | 732 | |
9910 | Doczom | 733 | .rmpr3: |
2288 | clevermous | 734 | |
735 | mov edi, esi |
||
736 | shl edi, 4 |
||
737 | add edi, RESERVED_PORTS |
||
738 | |||
739 | cmp edx, [edi] |
||
9910 | Doczom | 740 | je .rmpr4 |
2288 | clevermous | 741 | |
742 | dec esi |
||
9910 | Doczom | 743 | jnz .rmpr3 |
2288 | clevermous | 744 | |
9910 | Doczom | 745 | jmp .rmpr9 |
2288 | clevermous | 746 | |
9910 | Doczom | 747 | .rmpr4: |
2288 | clevermous | 748 | |
749 | mov ecx, 256 |
||
750 | sub ecx, esi |
||
751 | shl ecx, 4 |
||
752 | |||
753 | mov esi, edi |
||
754 | add esi, 16 |
||
755 | cld |
||
756 | rep movsb |
||
757 | |||
758 | dec dword [RESERVED_PORTS] |
||
759 | |||
9910 | Doczom | 760 | jmp .rmpr0 |
2288 | clevermous | 761 | |
9910 | Doczom | 762 | .rmpr9: |
9743 | Doczom | 763 | popa |
2288 | clevermous | 764 | |
9743 | Doczom | 765 | ; clearing APPDATA structure this thread |
766 | pushad |
||
767 | mov edi, esi |
||
768 | shl edi, BSF sizeof.APPDATA |
||
769 | add edi, SLOT_BASE |
||
770 | mov eax, 0x20202020 |
||
771 | stosd |
||
772 | stosd |
||
773 | stosd |
||
774 | mov ecx, 244/4 |
||
775 | xor eax, eax |
||
776 | rep stosd |
||
777 | popad |
||
778 | |||
2288 | clevermous | 779 | mov edi, esi ; do not run this process slot |
9709 | Doczom | 780 | shl edi, BSF sizeof.APPDATA |
9715 | Doczom | 781 | mov [SLOT_BASE + edi + APPDATA.state], TSTATE_FREE |
2288 | clevermous | 782 | ; debugger test - terminate all debuggees |
783 | mov eax, 2 |
||
9715 | Doczom | 784 | mov ecx, SLOT_BASE + 2*sizeof.APPDATA + APPDATA.debugger_slot |
2288 | clevermous | 785 | .xd0: |
8866 | rgimad | 786 | cmp eax, [thread_count] |
2288 | clevermous | 787 | ja .xd1 |
788 | cmp dword [ecx], esi |
||
789 | jnz @f |
||
790 | and dword [ecx], 0 |
||
791 | pushad |
||
792 | xchg eax, ecx |
||
793 | mov ebx, 2 |
||
794 | call sys_system |
||
795 | popad |
||
796 | @@: |
||
797 | inc eax |
||
9692 | Doczom | 798 | add ecx, sizeof.APPDATA |
2288 | clevermous | 799 | jmp .xd0 |
800 | .xd1: |
||
5130 | serge | 801 | ;release slot |
802 | |||
803 | bts [thr_slot_map], esi |
||
804 | |||
805 | mov ecx, [.process] |
||
9715 | Doczom | 806 | lea eax, [ecx + PROC.thr_list] |
807 | cmp eax, [eax + LHEAD.next] |
||
5130 | serge | 808 | jne @F |
809 | |||
810 | call destroy_process.internal |
||
811 | @@: |
||
2288 | clevermous | 812 | sti ; .. and life goes on |
813 | |||
814 | mov eax, [draw_limits.left] |
||
815 | mov ebx, [draw_limits.top] |
||
816 | mov ecx, [draw_limits.right] |
||
817 | mov edx, [draw_limits.bottom] |
||
818 | call calculatescreen |
||
819 | xor eax, eax |
||
820 | xor esi, esi |
||
821 | call redrawscreen |
||
822 | |||
3534 | clevermous | 823 | call unlock_application_table |
2288 | clevermous | 824 | ;mov esi,process_terminated |
825 | ;call sys_msg_board_str |
||
5130 | serge | 826 | add esp, 8 |
2288 | clevermous | 827 | ret |
828 | restore .slot |
||
5130 | serge | 829 | restore .process |
2288 | clevermous | 830 | |
3296 | clevermous | 831 | ; Three following procedures are used to guarantee that |
832 | ; some part of kernel code will not be terminated from outside |
||
833 | ; while it is running. |
||
834 | ; Note: they do not protect a thread from terminating due to errors inside |
||
835 | ; the thread; accessing a nonexisting memory would still terminate it. |
||
836 | |||
837 | ; First two procedures must be used in pair by thread-to-be-protected |
||
838 | ; to signal the beginning and the end of an important part. |
||
839 | ; It is OK to have nested areas. |
||
840 | |||
841 | ; The last procedure must be used by outside wanna-be-terminators; |
||
842 | ; if it is safe to terminate the given thread immediately, it returns eax=1; |
||
843 | ; otherwise, it returns eax=0 and notifies the target thread that it should |
||
844 | ; terminate itself when leaving a critical area (the last critical area if |
||
845 | ; they are nested). |
||
846 | |||
847 | ; Implementation. Those procedures use one dword in APPDATA for the thread, |
||
848 | ; APPDATA.terminate_protection. |
||
849 | ; * The upper bit is 1 during normal operations and 0 when terminate is requested. |
||
850 | ; * Other bits form a number = depth of critical regions, |
||
851 | ; plus 1 if the upper bit is 1. |
||
852 | ; * When this dword goes to zero, the thread should be destructed, |
||
853 | ; and the procedure in which it happened becomes responsible for destruction. |
||
854 | |||
855 | ; Enter critical area. Called by thread which wants to be protected. |
||
856 | proc protect_from_terminate |
||
857 | mov edx, [current_slot] |
||
858 | ; Atomically increment depth of critical areas and get the old value. |
||
859 | mov eax, 1 |
||
9715 | Doczom | 860 | lock xadd [edx + APPDATA.terminate_protection], eax |
3296 | clevermous | 861 | ; If the old value was zero, somebody has started to terminate us, |
862 | ; so we are destructing and cannot do anything protected. |
||
863 | ; Otherwise, return to the caller. |
||
864 | test eax, eax |
||
865 | jz @f |
||
866 | ret |
||
867 | @@: |
||
868 | ; Wait for somebody to finish us. |
||
869 | call change_task |
||
870 | jmp @b |
||
871 | endp |
||
872 | |||
873 | ; Leave critical area. Called by thread which wants to be protected. |
||
874 | proc unprotect_from_terminate |
||
875 | mov edx, [current_slot] |
||
876 | ; Atomically decrement depth of critical areas. |
||
9715 | Doczom | 877 | lock dec [edx + APPDATA.terminate_protection] |
3296 | clevermous | 878 | ; If the result of decrement is zero, somebody has requested termination, |
879 | ; but at that moment we were inside a critical area; terminate now. |
||
880 | jz sys_end |
||
881 | ; Otherwise, return to the caller. |
||
882 | ret |
||
883 | endp |
||
884 | |||
8093 | dunkaist | 885 | ; Request termination of thread identified by edx = SLOT_BASE + slot*sizeof.APPDATA. |
3296 | clevermous | 886 | ; Called by anyone. |
887 | proc request_terminate |
||
888 | xor eax, eax ; set return value |
||
889 | ; Atomically clear the upper bit. If it was already zero, then |
||
890 | ; somebody has requested termination before us, so just exit. |
||
9715 | Doczom | 891 | lock btr [edx + APPDATA.terminate_protection], 31 |
3296 | clevermous | 892 | jnc .unsafe |
893 | ; Atomically decrement depth of critical areas. |
||
9715 | Doczom | 894 | lock dec [edx + APPDATA.terminate_protection] |
3296 | clevermous | 895 | ; If the result of decrement is nonzero, the target thread is inside a |
896 | ; critical area; leave termination to leaving that area. |
||
897 | jnz .unsafe |
||
898 | ; Otherwise, it is safe to kill the target now and the caller is responsible |
||
899 | ; for this. Return eax=1. |
||
900 | inc eax |
||
901 | .unsafe: |
||
902 | ret |
||
903 | endp |
||
904 |