Rev 9709 | Rev 9742 | Go to most recent revision | 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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9715 | Doczom | 3 | ;; Copyright (C) KolibriOS team 2004-2022. 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 | $Revision: 9715 $ |
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9 | |||
10 | align 4 ;3A08 |
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11 | build_interrupt_table: |
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12 | mov edi, idts |
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13 | mov esi, sys_int |
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14 | mov ecx, 0x40 |
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15 | mov eax, (10001110b shl 24) + os_code |
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16 | @@: |
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8050 | rgimad | 17 | movsw ; low word of code-entry |
18 | stosd ; interrupt gate type : os_code selector |
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19 | movsw ; high word of code-entry |
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2288 | clevermous | 20 | loop @b |
8050 | rgimad | 21 | movsd ; copy low dword of trap gate for int 0x40 |
22 | movsd ; copy high dword of trap gate for int 0x40 |
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7733 | dunkaist | 23 | mov ecx, 23 |
24 | mov eax, (10001110b shl 24) + os_code |
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25 | @@: |
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8050 | rgimad | 26 | movsw ; low word of code-entry |
27 | stosd ; interrupt gate type : os_code selector |
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28 | movsw ; high word of code-entry |
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7733 | dunkaist | 29 | loop @b |
2288 | clevermous | 30 | lidt [esi] |
31 | ret |
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32 | |||
33 | iglobal |
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34 | align 4 |
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35 | sys_int: |
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8050 | rgimad | 36 | ; exception handlers addresses (for interrupt gate construction) |
2288 | clevermous | 37 | dd e0,e1,e2,e3,e4,e5,e6,except_7 ; SEE: core/fpu.inc |
38 | dd e8,e9,e10,e11,e12,e13,page_fault_exc,e15 |
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39 | dd e16, e17,e18, e19 |
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40 | times 12 dd unknown_interrupt ;int_20..int_31 |
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41 | |||
8050 | rgimad | 42 | ; interrupt handlers addresses (for interrupt gate construction) |
7733 | dunkaist | 43 | ; 0x20+ are IRQ handlers |
44 | dd irq0 |
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45 | rept 12 irqn:1 \{dd irq_serv.irq_\#irqn\} |
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46 | dd irqD |
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47 | rept 18 irqn:14 \{dd irq_serv.irq_\#irqn\} |
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2288 | clevermous | 48 | |
7733 | dunkaist | 49 | ; int_0x40 gate trap (for directly copied) |
50 | dw i40 and 0xFFFF, os_code, 11101111b shl 8, i40 shr 16 |
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2288 | clevermous | 51 | |
7733 | dunkaist | 52 | rept 23 irqn:33 \{dd irq_serv.irq_\#irqn\} |
53 | |||
2288 | clevermous | 54 | idtreg: ; data for LIDT instruction (!!! must be immediately below sys_int data) |
55 | dw 2*($-sys_int-4)-1 |
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8050 | rgimad | 56 | dd idts ; 0x8000B100 |
57 | dw 0 ; alignment |
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2288 | clevermous | 58 | |
59 | msg_fault_sel dd msg_exc_8,msg_exc_u,msg_exc_a,msg_exc_b |
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6817 | dunkaist | 60 | dd msg_exc_c,msg_exc_d,msg_exc_e,msg_exc_u |
61 | dd msg_exc_u,msg_exc_11 |
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2288 | clevermous | 62 | |
63 | msg_exc_8 db "Double fault", 0 |
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64 | msg_exc_u db "Undefined Exception", 0 |
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65 | msg_exc_a db "Invalid TSS", 0 |
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66 | msg_exc_b db "Segment not present", 0 |
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67 | msg_exc_c db "Stack fault", 0 |
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68 | msg_exc_d db "General protection fault", 0 |
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69 | msg_exc_e db "Page fault", 0 |
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6817 | dunkaist | 70 | msg_exc_11 db "Alignment Check", 0 |
2288 | clevermous | 71 | |
3342 | yogev_ezra | 72 | if lang eq sp |
3344 | yogev_ezra | 73 | include 'core/sys32-sp.inc' |
3342 | yogev_ezra | 74 | else |
75 | msg_sel_ker db "kernel", 0 |
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76 | msg_sel_app db "application", 0 |
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3309 | esevece | 77 | end if |
2288 | clevermous | 78 | |
79 | endg |
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80 | |||
81 | macro save_ring3_context { |
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82 | pushad |
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83 | } |
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84 | macro restore_ring3_context { |
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85 | popad |
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86 | } |
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87 | macro exc_wo_code [num] { |
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88 | e#num : |
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89 | save_ring3_context |
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90 | mov bl, num |
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91 | jmp exc_c |
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92 | } exc_wo_code 0,1,2,3,4,5,6,15,16,19 |
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93 | |||
94 | macro exc_w_code [num] { |
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95 | e#num : |
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96 | add esp, 4 |
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97 | save_ring3_context |
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98 | mov bl, num |
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99 | jmp exc_c |
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100 | } exc_w_code 8,9,10,11,12,13,17,18 |
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101 | |||
102 | |||
103 | uglobal |
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104 | pf_err_code dd ? |
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105 | endg |
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106 | |||
8050 | rgimad | 107 | page_fault_exc: ; foolproof: selectors are clobbered ... |
108 | pop [ss:pf_err_code] ; actually, until the next #PF |
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2288 | clevermous | 109 | save_ring3_context |
110 | mov bl, 14 |
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111 | |||
8050 | rgimad | 112 | exc_c: ; exceptions (all but 7th - #NM) |
113 | ; stack frame when exception/interrupt from ring3 + pushad (i.e right here) |
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2288 | clevermous | 114 | reg_ss equ esp+0x30 |
115 | reg_esp3 equ esp+0x2C |
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116 | reg_eflags equ esp+0x28 |
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117 | reg_cs3 equ esp+0x24 |
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118 | reg_eip equ esp+0x20 |
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8050 | rgimad | 119 | ; this if frame from pushad |
2288 | clevermous | 120 | reg_eax equ esp+0x1C |
121 | reg_ecx equ esp+0x18 |
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122 | reg_edx equ esp+0x14 |
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123 | reg_ebx equ esp+0x10 |
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124 | reg_esp0 equ esp+0x0C |
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125 | reg_ebp equ esp+0x08 |
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126 | reg_esi equ esp+0x04 |
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127 | reg_edi equ esp+0x00 |
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128 | |||
8050 | rgimad | 129 | mov ax, app_data ; exception |
130 | mov ds, ax ; load proper values |
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131 | mov es, ax ; to registers |
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8051 | rgimad | 132 | cld ; clear the direction flag |
2288 | clevermous | 133 | movzx ebx, bl |
134 | ; redirect to V86 manager? (EFLAGS & 0x20000) != 0? |
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135 | test byte[reg_eflags+2], 2 |
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136 | jnz v86_exc_c |
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8050 | rgimad | 137 | cmp bl, 14 ; #PF |
2288 | clevermous | 138 | jne @f |
139 | call page_fault_handler ; SEE: core/memory.inc |
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140 | @@: |
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141 | mov esi, [current_slot] |
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9715 | Doczom | 142 | btr [esi + APPDATA.except_mask], ebx |
2288 | clevermous | 143 | jnc @f |
9715 | Doczom | 144 | mov eax, [esi + APPDATA.exc_handler] |
2288 | clevermous | 145 | test eax, eax |
146 | jnz IRetToUserHook |
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147 | @@: |
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148 | cli |
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9715 | Doczom | 149 | mov eax, [esi + APPDATA.debugger_slot] |
2288 | clevermous | 150 | test eax, eax |
151 | jnz .debug |
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6793 | pathoswith | 152 | ; not debuggee => say error and terminate |
9709 | Doczom | 153 | call show_error_parameters ; this function output in edx = current_slot |
2288 | clevermous | 154 | sti |
9709 | Doczom | 155 | mov [edx + APPDATA.state], TSTATE_TERMINATING |
3534 | clevermous | 156 | call wakeup_osloop |
3615 | clevermous | 157 | call change_task |
158 | ; If we're here, then the main OS thread has crashed before initializing IDLE thread. |
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159 | ; Or they both have crashed. Anyway, things are hopelessly broken. |
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160 | hlt |
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161 | jmp $-1 |
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2288 | clevermous | 162 | .debug: |
163 | ; we are debugged process, notify debugger and suspend ourself |
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164 | ; eax=debugger PID |
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165 | mov ecx, 1 ; debug_message code=other_exception |
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166 | cmp bl, 1 ; #DB |
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167 | jne .notify ; notify debugger and suspend ourself |
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168 | mov ebx, dr6 ; debug_message data=DR6_image |
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169 | xor edx, edx |
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170 | mov dr6, edx |
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171 | mov edx, dr7 |
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172 | mov cl, not 8 |
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173 | .l1: |
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174 | shl dl, 2 |
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175 | jc @f |
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176 | and bl, cl |
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177 | @@: |
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178 | sar cl, 1 |
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179 | jc .l1 |
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180 | mov cl, 3 ; debug_message code=debug_exception |
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181 | .notify: |
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182 | push ebx ; debug_message data |
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9692 | Doczom | 183 | mov ebx, [current_slot] |
184 | push [ebx + APPDATA.tid] ; PID |
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2288 | clevermous | 185 | push ecx ; debug_message code ((here: ecx==1/3)) |
186 | mov cl, 12 ; debug_message size |
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187 | call debugger_notify ;; only ONE using, inline ??? SEE: core/debug.inc |
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188 | add esp, 12 |
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9709 | Doczom | 189 | mov edx, [current_slot] |
190 | mov [edx + APPDATA.state], TSTATE_RUN_SUSPENDED |
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2288 | clevermous | 191 | call change_task ; SEE: core/shed.inc |
192 | restore_ring3_context |
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193 | iretd |
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194 | |||
195 | IRetToUserHook: |
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196 | xchg eax, [reg_eip] |
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197 | sub dword[reg_esp3], 8 |
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198 | mov edi, [reg_esp3] |
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199 | stosd |
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200 | mov [edi], ebx |
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201 | restore_ring3_context |
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202 | ; simply return control to interrupted process |
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203 | unknown_interrupt: |
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204 | iretd |
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205 | |||
206 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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207 | ; bl - error vector |
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208 | show_error_parameters: |
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209 | cmp bl, 0x06 |
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210 | jnz .no_ud |
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211 | push ebx |
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212 | mov ebx, ud_user_message |
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213 | mov ebp, notifyapp |
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214 | call fs_execute_from_sysdir_param |
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215 | pop ebx |
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216 | .no_ud: |
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9692 | Doczom | 217 | mov edx, [current_slot];not scratched below |
3309 | esevece | 218 | if lang eq sp |
9692 | Doczom | 219 | DEBUGF 1, "K : Proceso - terminado forzado PID: %x [%s]\n", [edx + APPDATA.tid], [current_slot] |
3309 | esevece | 220 | else |
9692 | Doczom | 221 | DEBUGF 1, "K : Process - forced terminate PID: %x [%s]\n", [edx + APPDATA.tid], [current_slot] |
3309 | esevece | 222 | end if |
2288 | clevermous | 223 | cmp bl, 0x08 |
224 | jb .l0 |
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6817 | dunkaist | 225 | cmp bl, 0x11 |
2288 | clevermous | 226 | jbe .l1 |
227 | .l0: |
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228 | mov bl, 0x09 |
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229 | .l1: |
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230 | mov eax, [msg_fault_sel+ebx*4 - 0x08*4] |
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231 | DEBUGF 1, "K : %s\n", eax |
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232 | mov eax, [reg_cs3+4] |
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233 | mov edi, msg_sel_app |
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234 | mov ebx, [reg_esp3+4] |
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235 | cmp eax, app_code |
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236 | je @f |
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237 | mov edi, msg_sel_ker |
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238 | mov ebx, [reg_esp0+4] |
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239 | @@: |
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240 | DEBUGF 1, "K : EAX : %x EBX : %x ECX : %x\n", [reg_eax+4], [reg_ebx+4], [reg_ecx+4] |
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241 | DEBUGF 1, "K : EDX : %x ESI : %x EDI : %x\n", [reg_edx+4], [reg_esi+4], [reg_edi+4] |
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242 | DEBUGF 1, "K : EBP : %x EIP : %x ESP : %x\n", [reg_ebp+4], [reg_eip+4], ebx |
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243 | DEBUGF 1, "K : Flags : %x CS : %x (%s)\n", [reg_eflags+4], eax, edi |
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3911 | mario79 | 244 | |
3909 | mario79 | 245 | DEBUGF 1, "K : Stack dump:\n" |
3911 | mario79 | 246 | push eax ebx ecx edx |
247 | call .check_ESP |
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248 | test eax, eax |
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249 | jnz .error_ESP |
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250 | DEBUGF 1, "K : [ESP+00]: %x",[ebx] |
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251 | add ebx, 4 |
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252 | call .check_ESP |
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253 | test eax, eax |
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254 | jnz .error_ESP |
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255 | DEBUGF 1, " [ESP+04]: %x",[ebx] |
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256 | add ebx, 4 |
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257 | call .check_ESP |
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258 | test eax, eax |
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259 | jnz .error_ESP |
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5356 | serge | 260 | DEBUGF 1, " [ESP+08]: %x\n",[ebx] |
3911 | mario79 | 261 | add ebx, 4 |
262 | call .check_ESP |
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263 | test eax, eax |
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264 | jnz .error_ESP |
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265 | DEBUGF 1, "K : [ESP+12]: %x",[ebx] |
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266 | add ebx, 4 |
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267 | call .check_ESP |
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268 | test eax, eax |
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269 | jnz .error_ESP |
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270 | DEBUGF 1, " [ESP+16]: %x",[ebx] |
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271 | add ebx, 4 |
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272 | call .check_ESP |
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273 | test eax, eax |
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274 | jnz .error_ESP |
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275 | DEBUGF 1, " [ESP+20]: %x\n",[ebx] |
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276 | add ebx, 4 |
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277 | call .check_ESP |
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278 | test eax, eax |
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279 | jnz .error_ESP |
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280 | DEBUGF 1, "K : [ESP+24]: %x",[ebx] |
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281 | add ebx, 4 |
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282 | call .check_ESP |
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283 | test eax, eax |
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284 | jnz .error_ESP |
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285 | DEBUGF 1, " [ESP+28]: %x",[ebx] |
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286 | add ebx, 4 |
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287 | call .check_ESP |
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288 | test eax, eax |
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289 | jnz .error_ESP |
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5356 | serge | 290 | DEBUGF 1, " [ESP+32]: %x\n",[ebx] |
3911 | mario79 | 291 | pop edx ecx ebx eax |
2288 | clevermous | 292 | ret |
3911 | mario79 | 293 | .error_ESP: |
294 | pop edx ecx ebx eax |
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295 | DEBUGF 1, "\n" |
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296 | DEBUGF 1, "K : Unexpected end of the stack\n" |
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297 | ret |
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298 | ;-------------------------------------- |
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299 | .check_ESP: |
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300 | push ebx |
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301 | shr ebx, 12 |
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302 | mov ecx, ebx |
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303 | shr ecx, 10 |
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9715 | Doczom | 304 | mov edx, [master_tab + ecx*4] |
5356 | serge | 305 | test edx, PG_READ |
8050 | rgimad | 306 | jz .fail ; page table is not created |
307 | ; incorrect address in the program |
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3911 | mario79 | 308 | |
9715 | Doczom | 309 | mov eax, [page_tabs + ebx*4] |
3911 | mario79 | 310 | test eax, 2 |
8050 | rgimad | 311 | jz .fail ; address not reserved for use. error |
5356 | serge | 312 | |
313 | pop ebx |
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3911 | mario79 | 314 | xor eax, eax |
5356 | serge | 315 | ret |
316 | |||
3911 | mario79 | 317 | .fail: |
318 | pop ebx |
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319 | xor eax, eax |
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320 | dec eax |
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321 | ret |
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2288 | clevermous | 322 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
323 | |||
324 | restore reg_ss |
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325 | restore reg_esp3 |
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326 | restore reg_eflags |
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327 | restore reg_cs |
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328 | restore reg_eip |
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329 | restore reg_eax |
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330 | restore reg_ecx |
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331 | restore reg_edx |
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332 | restore reg_ebx |
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333 | restore reg_esp0 |
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334 | restore reg_ebp |
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335 | restore reg_esi |
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336 | restore reg_edi |
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337 | |||
338 | |||
339 | align 4 |
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3534 | clevermous | 340 | lock_application_table: |
341 | push eax ecx edx |
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342 | mov ecx, application_table_mutex |
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343 | call mutex_lock |
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2288 | clevermous | 344 | |
8869 | rgimad | 345 | mov eax, [current_slot_idx] |
9692 | Doczom | 346 | shl eax, BSF sizeof.APPDATA |
347 | mov eax, [eax + SLOT_BASE + APPDATA.tid] |
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2288 | clevermous | 348 | |
3534 | clevermous | 349 | mov [application_table_owner], eax |
2288 | clevermous | 350 | |
3534 | clevermous | 351 | pop edx ecx eax |
2288 | clevermous | 352 | |
353 | ret |
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354 | |||
355 | align 4 |
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3534 | clevermous | 356 | unlock_application_table: |
357 | push eax ecx edx |
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2288 | clevermous | 358 | |
3534 | clevermous | 359 | mov [application_table_owner], 0 |
360 | mov ecx, application_table_mutex |
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361 | call mutex_unlock |
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2288 | clevermous | 362 | |
3534 | clevermous | 363 | pop edx ecx eax |
2288 | clevermous | 364 | |
365 | ret |
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366 | |||
8050 | rgimad | 367 | ; sysfn 64 implementation |
2288 | clevermous | 368 | align 4 |
369 | sys_resize_app_memory: |
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8050 | rgimad | 370 | ; in: eax = 64 - function number |
371 | ; ebx = 1 - number of its only subfunction |
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372 | ; ecx = new amount of memory |
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373 | ; out: |
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374 | ; eax = 0 - success |
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375 | ; eax = 1 - out of memory |
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2288 | clevermous | 376 | |
377 | ; cmp eax,1 |
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378 | dec ebx |
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379 | jnz .no_application_mem_resize |
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4313 | mario79 | 380 | |
381 | mov eax, [pg_data.pages_free] |
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382 | shl eax, 12 |
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383 | cmp eax, ecx |
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384 | jae @f |
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385 | |||
386 | xor eax, eax |
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387 | inc eax |
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388 | jmp .store_result |
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389 | @@: |
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2288 | clevermous | 390 | stdcall new_mem_resize, ecx |
4313 | mario79 | 391 | .store_result: |
2288 | clevermous | 392 | mov [esp+32], eax |
393 | .no_application_mem_resize: |
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394 | ret |
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395 | |||
396 | iglobal |
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397 | ; process_terminating db 'K : Process - terminating',13,10,0 |
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398 | ; process_terminated db 'K : Process - done',13,10,0 |
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399 | msg_obj_destroy db 'K : destroy app object',13,10,0 |
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400 | endg |
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401 | |||
402 | ; param |
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403 | ; esi= slot |
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404 | |||
405 | align 4 |
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406 | terminate: ; terminate application |
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5130 | serge | 407 | destroy_thread: |
2288 | clevermous | 408 | |
5130 | serge | 409 | .slot equ esp+4 ;locals |
410 | .process equ esp ;ptr to parent process |
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2288 | clevermous | 411 | |
5130 | serge | 412 | |
2288 | clevermous | 413 | push esi ;save .slot |
414 | |||
9709 | Doczom | 415 | shl esi, BSF sizeof.APPDATA |
9715 | Doczom | 416 | mov edx, [SLOT_BASE + esi + APPDATA.process] |
5130 | serge | 417 | test edx, edx |
418 | jnz @F |
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9709 | Doczom | 419 | mov [SLOT_BASE + esi + APPDATA.state], TSTATE_FREE |
2288 | clevermous | 420 | pop esi |
421 | ret |
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422 | @@: |
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5130 | serge | 423 | push edx ;save .process |
9715 | Doczom | 424 | lea edx, [SLOT_BASE + esi] |
3534 | clevermous | 425 | call scheduler_remove_thread |
426 | call lock_application_table |
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2288 | clevermous | 427 | |
428 | ; if the process is in V86 mode... |
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429 | mov eax, [.slot] |
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9709 | Doczom | 430 | shl eax, BSF sizeof.APPDATA |
9715 | Doczom | 431 | mov esi, [SLOT_BASE + eax + APPDATA.pl0_stack] |
2288 | clevermous | 432 | add esi, RING0_STACK_SIZE |
9715 | Doczom | 433 | cmp [SLOT_BASE + eax + APPDATA.saved_esp0], esi |
2288 | clevermous | 434 | jz .nov86 |
435 | ; ...it has page directory for V86 mode |
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9715 | Doczom | 436 | mov esi, [SLOT_BASE + eax + APPDATA.saved_esp0] |
2288 | clevermous | 437 | mov ecx, [esi+4] |
9715 | Doczom | 438 | mov [SLOT_BASE + eax + APPDATA.process], ecx |
2288 | clevermous | 439 | ; ...and I/O permission map for V86 mode |
440 | mov ecx, [esi+12] |
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9715 | Doczom | 441 | mov [SLOT_BASE + eax + APPDATA.io_map], ecx |
2288 | clevermous | 442 | mov ecx, [esi+8] |
9715 | Doczom | 443 | mov [SLOT_BASE + eax + APPDATA.io_map+4], ecx |
2288 | clevermous | 444 | .nov86: |
8050 | rgimad | 445 | ; destroy per-thread kernel objects |
2288 | clevermous | 446 | mov esi, [.slot] |
9709 | Doczom | 447 | shl esi, BSF sizeof.APPDATA |
9715 | Doczom | 448 | add esi, SLOT_BASE + APP_OBJ_OFFSET |
2288 | clevermous | 449 | @@: |
9715 | Doczom | 450 | mov eax, [esi + APPOBJ.fd] |
2288 | clevermous | 451 | test eax, eax |
452 | jz @F |
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453 | |||
454 | cmp eax, esi |
||
455 | je @F |
||
456 | |||
457 | push esi |
||
9715 | Doczom | 458 | call [eax + APPOBJ.destroy] |
2288 | clevermous | 459 | DEBUGF 1,"%s",msg_obj_destroy |
460 | pop esi |
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461 | jmp @B |
||
462 | @@: |
||
463 | mov esi, [.slot] |
||
3534 | clevermous | 464 | cmp [fpu_owner], esi ; if user fpu last -> fpu user = 2 |
2288 | clevermous | 465 | jne @F |
466 | |||
3534 | clevermous | 467 | mov [fpu_owner], 2 |
9715 | Doczom | 468 | mov eax, [SLOT_BASE + sizeof.APPDATA*2 + APPDATA.fpu_state] |
2288 | clevermous | 469 | clts |
470 | bt [cpu_caps], CAPS_SSE |
||
471 | jnc .no_SSE |
||
472 | fxrstor [eax] |
||
473 | jmp @F |
||
474 | .no_SSE: |
||
475 | fnclex |
||
476 | frstor [eax] |
||
477 | @@: |
||
478 | |||
479 | mov [KEY_COUNT], byte 0 ; empty keyboard buffer |
||
480 | mov [BTN_COUNT], byte 0 ; empty button buffer |
||
481 | |||
482 | |||
483 | ; remove defined hotkeys |
||
484 | mov eax, hotkey_list |
||
485 | .loop: |
||
486 | cmp [eax+8], esi |
||
487 | jnz .cont |
||
488 | mov ecx, [eax] |
||
489 | jecxz @f |
||
490 | push dword [eax+12] |
||
491 | pop dword [ecx+12] |
||
492 | @@: |
||
493 | mov ecx, [eax+12] |
||
494 | push dword [eax] |
||
495 | pop dword [ecx] |
||
496 | xor ecx, ecx |
||
497 | mov [eax], ecx |
||
498 | mov [eax+4], ecx |
||
499 | mov [eax+8], ecx |
||
500 | mov [eax+12], ecx |
||
501 | .cont: |
||
502 | add eax, 16 |
||
503 | cmp eax, hotkey_list+256*16 |
||
504 | jb .loop |
||
2709 | mario79 | 505 | ; get process PID |
506 | mov eax, esi |
||
9692 | Doczom | 507 | shl eax, BSF sizeof.APPDATA |
508 | mov eax, [eax + SLOT_BASE + APPDATA.tid] |
||
2709 | mario79 | 509 | ; compare current lock input with process PID |
510 | cmp eax, [PID_lock_input] |
||
511 | jne @f |
||
512 | |||
513 | xor eax, eax |
||
514 | mov [PID_lock_input], eax |
||
515 | @@: |
||
2288 | clevermous | 516 | ; remove hotkeys in buffer |
517 | mov eax, hotkey_buffer |
||
518 | .loop2: |
||
519 | cmp [eax], esi |
||
520 | jnz .cont2 |
||
521 | and dword [eax+4], 0 |
||
522 | and dword [eax], 0 |
||
523 | .cont2: |
||
524 | add eax, 8 |
||
525 | cmp eax, hotkey_buffer+120*8 |
||
526 | jb .loop2 |
||
527 | |||
528 | mov ecx, esi ; remove buttons |
||
529 | bnewba2: |
||
530 | mov edi, [BTN_ADDR] |
||
531 | mov eax, edi |
||
532 | cld |
||
533 | movzx ebx, word [edi] |
||
534 | inc bx |
||
535 | bnewba: |
||
536 | dec bx |
||
537 | jz bnmba |
||
538 | add eax, 0x10 |
||
539 | cmp cx, [eax] |
||
540 | jnz bnewba |
||
541 | pusha |
||
542 | mov ecx, ebx |
||
543 | inc ecx |
||
544 | shl ecx, 4 |
||
545 | mov ebx, eax |
||
546 | add eax, 0x10 |
||
547 | call memmove |
||
548 | dec dword [edi] |
||
549 | popa |
||
550 | jmp bnewba2 |
||
551 | bnmba: |
||
552 | |||
553 | pusha ; save window coordinates for window restoring |
||
554 | cld |
||
8858 | rgimad | 555 | shl esi, BSF sizeof.WDATA |
2288 | clevermous | 556 | add esi, window_data |
9715 | Doczom | 557 | mov eax, [esi + WDATA.box.left] |
2288 | clevermous | 558 | mov [draw_limits.left], eax |
9715 | Doczom | 559 | add eax, [esi + WDATA.box.width] |
2288 | clevermous | 560 | mov [draw_limits.right], eax |
9715 | Doczom | 561 | mov eax, [esi + WDATA.box.top] |
2288 | clevermous | 562 | mov [draw_limits.top], eax |
9715 | Doczom | 563 | add eax, [esi + WDATA.box.height] |
2288 | clevermous | 564 | mov [draw_limits.bottom], eax |
565 | |||
566 | xor eax, eax |
||
8858 | rgimad | 567 | mov edi, esi |
568 | mov ecx, sizeof.WDATA/4 |
||
569 | rep stosd |
||
570 | |||
9715 | Doczom | 571 | lea edi, [esi - window_data + draw_data] |
8858 | rgimad | 572 | mov ecx, sizeof.WDATA/4 |
2288 | clevermous | 573 | rep stosd |
574 | popa |
||
575 | |||
576 | ; debuggee test |
||
577 | pushad |
||
578 | mov edi, esi |
||
9692 | Doczom | 579 | shl edi, BSF sizeof.APPDATA |
580 | mov eax, [SLOT_BASE + edi + APPDATA.debugger_slot] |
||
2288 | clevermous | 581 | test eax, eax |
582 | jz .nodebug |
||
3598 | clevermous | 583 | movi ecx, 8 |
9692 | Doczom | 584 | push dword [SLOT_BASE + edi + APPDATA.tid]; PID |
2288 | clevermous | 585 | push 2 |
586 | call debugger_notify |
||
587 | pop ecx |
||
588 | pop ecx |
||
589 | .nodebug: |
||
590 | popad |
||
591 | |||
592 | mov ebx, [.slot] |
||
9709 | Doczom | 593 | shl ebx, BSF sizeof.APPDATA |
2288 | clevermous | 594 | push ebx |
9715 | Doczom | 595 | mov ebx, [SLOT_BASE + ebx + APPDATA.pl0_stack] |
2288 | clevermous | 596 | |
597 | stdcall kernel_free, ebx |
||
598 | |||
599 | pop ebx |
||
9715 | Doczom | 600 | mov ebx, [SLOT_BASE + ebx + APPDATA.cur_dir] |
2288 | clevermous | 601 | stdcall kernel_free, ebx |
602 | |||
603 | mov edi, [.slot] |
||
9709 | Doczom | 604 | shl edi, BSF sizeof.APPDATA |
2288 | clevermous | 605 | add edi, SLOT_BASE |
606 | |||
9715 | Doczom | 607 | mov eax, [edi + APPDATA.io_map] |
608 | cmp eax, [SLOT_BASE + sizeof.APPDATA+APPDATA.io_map] |
||
2288 | clevermous | 609 | je @F |
610 | call free_page |
||
611 | @@: |
||
612 | mov eax, [edi+APPDATA.io_map+4] |
||
8093 | dunkaist | 613 | cmp eax, [SLOT_BASE+sizeof.APPDATA+APPDATA.io_map+4] |
2288 | clevermous | 614 | je @F |
615 | call free_page |
||
616 | @@: |
||
9715 | Doczom | 617 | lea ebx, [edi + APPDATA.list] |
5130 | serge | 618 | list_del ebx ;destroys edx, ecx |
619 | |||
2288 | clevermous | 620 | mov eax, 0x20202020 |
621 | stosd |
||
622 | stosd |
||
623 | stosd |
||
624 | mov ecx, 244/4 |
||
625 | xor eax, eax |
||
626 | rep stosd |
||
627 | |||
628 | ; activate window |
||
629 | movzx eax, word [WIN_STACK + esi*2] |
||
8866 | rgimad | 630 | cmp eax, [thread_count] |
2288 | clevermous | 631 | jne .dont_activate |
632 | pushad |
||
633 | .check_next_window: |
||
634 | dec eax |
||
635 | cmp eax, 1 |
||
636 | jbe .nothing_to_activate |
||
9715 | Doczom | 637 | lea esi, [WIN_POS + eax*2] |
2288 | clevermous | 638 | movzx edi, word [esi] ; edi = process |
9709 | Doczom | 639 | shl edi, BSF sizeof.APPDATA |
640 | cmp [SLOT_BASE + edi + APPDATA.state], TSTATE_FREE ; skip free slots |
||
2288 | clevermous | 641 | je .check_next_window |
9709 | Doczom | 642 | shr edi, 3 |
2288 | clevermous | 643 | add edi, window_data |
644 | ; \begin{diamond}[19.09.2006] |
||
645 | ; skip minimized windows |
||
646 | test [edi + WDATA.fl_wstate], WSTATE_MINIMIZED |
||
647 | jnz .check_next_window |
||
648 | ; \end{diamond} |
||
649 | call waredraw |
||
650 | .nothing_to_activate: |
||
651 | popad |
||
652 | .dont_activate: |
||
653 | |||
654 | push esi ; remove hd1 & cd & flp reservation |
||
9692 | Doczom | 655 | shl esi, BSF sizeof.APPDATA |
9715 | Doczom | 656 | mov esi, [SLOT_BASE + esi + APPDATA.tid] |
2288 | clevermous | 657 | cmp [cd_status], esi |
658 | jnz @f |
||
659 | call free_cd_channel |
||
660 | and [cd_status], 0 |
||
661 | @@: |
||
662 | pop esi |
||
663 | cmp [bgrlockpid], esi |
||
664 | jnz @f |
||
665 | and [bgrlockpid], 0 |
||
666 | and [bgrlock], 0 |
||
667 | @@: |
||
668 | |||
669 | pusha ; remove all port reservations |
||
670 | mov edx, esi |
||
9692 | Doczom | 671 | shl edx, BSF sizeof.APPDATA |
9715 | Doczom | 672 | mov edx, [SLOT_BASE + edx + APPDATA.tid] |
2288 | clevermous | 673 | |
674 | rmpr0: |
||
675 | |||
676 | mov esi, [RESERVED_PORTS] |
||
677 | |||
678 | test esi, esi |
||
679 | jz rmpr9 |
||
680 | |||
681 | rmpr3: |
||
682 | |||
683 | mov edi, esi |
||
684 | shl edi, 4 |
||
685 | add edi, RESERVED_PORTS |
||
686 | |||
687 | cmp edx, [edi] |
||
688 | je rmpr4 |
||
689 | |||
690 | dec esi |
||
691 | jnz rmpr3 |
||
692 | |||
693 | jmp rmpr9 |
||
694 | |||
695 | rmpr4: |
||
696 | |||
697 | mov ecx, 256 |
||
698 | sub ecx, esi |
||
699 | shl ecx, 4 |
||
700 | |||
701 | mov esi, edi |
||
702 | add esi, 16 |
||
703 | cld |
||
704 | rep movsb |
||
705 | |||
706 | dec dword [RESERVED_PORTS] |
||
707 | |||
708 | jmp rmpr0 |
||
709 | |||
710 | rmpr9: |
||
711 | |||
712 | popa |
||
713 | mov edi, esi ; do not run this process slot |
||
9709 | Doczom | 714 | shl edi, BSF sizeof.APPDATA |
9715 | Doczom | 715 | mov [SLOT_BASE + edi + APPDATA.state], TSTATE_FREE |
2288 | clevermous | 716 | ; debugger test - terminate all debuggees |
717 | mov eax, 2 |
||
9715 | Doczom | 718 | mov ecx, SLOT_BASE + 2*sizeof.APPDATA + APPDATA.debugger_slot |
2288 | clevermous | 719 | .xd0: |
8866 | rgimad | 720 | cmp eax, [thread_count] |
2288 | clevermous | 721 | ja .xd1 |
722 | cmp dword [ecx], esi |
||
723 | jnz @f |
||
724 | and dword [ecx], 0 |
||
725 | pushad |
||
726 | xchg eax, ecx |
||
727 | mov ebx, 2 |
||
728 | call sys_system |
||
729 | popad |
||
730 | @@: |
||
731 | inc eax |
||
9692 | Doczom | 732 | add ecx, sizeof.APPDATA |
2288 | clevermous | 733 | jmp .xd0 |
734 | .xd1: |
||
5130 | serge | 735 | ;release slot |
736 | |||
737 | bts [thr_slot_map], esi |
||
738 | |||
739 | mov ecx, [.process] |
||
9715 | Doczom | 740 | lea eax, [ecx + PROC.thr_list] |
741 | cmp eax, [eax + LHEAD.next] |
||
5130 | serge | 742 | jne @F |
743 | |||
744 | call destroy_process.internal |
||
745 | @@: |
||
2288 | clevermous | 746 | sti ; .. and life goes on |
747 | |||
748 | mov eax, [draw_limits.left] |
||
749 | mov ebx, [draw_limits.top] |
||
750 | mov ecx, [draw_limits.right] |
||
751 | mov edx, [draw_limits.bottom] |
||
752 | call calculatescreen |
||
753 | xor eax, eax |
||
754 | xor esi, esi |
||
755 | call redrawscreen |
||
756 | |||
3534 | clevermous | 757 | call unlock_application_table |
2288 | clevermous | 758 | ;mov esi,process_terminated |
759 | ;call sys_msg_board_str |
||
5130 | serge | 760 | add esp, 8 |
2288 | clevermous | 761 | ret |
762 | restore .slot |
||
5130 | serge | 763 | restore .process |
2288 | clevermous | 764 | |
3296 | clevermous | 765 | ; Three following procedures are used to guarantee that |
766 | ; some part of kernel code will not be terminated from outside |
||
767 | ; while it is running. |
||
768 | ; Note: they do not protect a thread from terminating due to errors inside |
||
769 | ; the thread; accessing a nonexisting memory would still terminate it. |
||
770 | |||
771 | ; First two procedures must be used in pair by thread-to-be-protected |
||
772 | ; to signal the beginning and the end of an important part. |
||
773 | ; It is OK to have nested areas. |
||
774 | |||
775 | ; The last procedure must be used by outside wanna-be-terminators; |
||
776 | ; if it is safe to terminate the given thread immediately, it returns eax=1; |
||
777 | ; otherwise, it returns eax=0 and notifies the target thread that it should |
||
778 | ; terminate itself when leaving a critical area (the last critical area if |
||
779 | ; they are nested). |
||
780 | |||
781 | ; Implementation. Those procedures use one dword in APPDATA for the thread, |
||
782 | ; APPDATA.terminate_protection. |
||
783 | ; * The upper bit is 1 during normal operations and 0 when terminate is requested. |
||
784 | ; * Other bits form a number = depth of critical regions, |
||
785 | ; plus 1 if the upper bit is 1. |
||
786 | ; * When this dword goes to zero, the thread should be destructed, |
||
787 | ; and the procedure in which it happened becomes responsible for destruction. |
||
788 | |||
789 | ; Enter critical area. Called by thread which wants to be protected. |
||
790 | proc protect_from_terminate |
||
791 | mov edx, [current_slot] |
||
792 | ; Atomically increment depth of critical areas and get the old value. |
||
793 | mov eax, 1 |
||
9715 | Doczom | 794 | lock xadd [edx + APPDATA.terminate_protection], eax |
3296 | clevermous | 795 | ; If the old value was zero, somebody has started to terminate us, |
796 | ; so we are destructing and cannot do anything protected. |
||
797 | ; Otherwise, return to the caller. |
||
798 | test eax, eax |
||
799 | jz @f |
||
800 | ret |
||
801 | @@: |
||
802 | ; Wait for somebody to finish us. |
||
803 | call change_task |
||
804 | jmp @b |
||
805 | endp |
||
806 | |||
807 | ; Leave critical area. Called by thread which wants to be protected. |
||
808 | proc unprotect_from_terminate |
||
809 | mov edx, [current_slot] |
||
810 | ; Atomically decrement depth of critical areas. |
||
9715 | Doczom | 811 | lock dec [edx + APPDATA.terminate_protection] |
3296 | clevermous | 812 | ; If the result of decrement is zero, somebody has requested termination, |
813 | ; but at that moment we were inside a critical area; terminate now. |
||
814 | jz sys_end |
||
815 | ; Otherwise, return to the caller. |
||
816 | ret |
||
817 | endp |
||
818 | |||
8093 | dunkaist | 819 | ; Request termination of thread identified by edx = SLOT_BASE + slot*sizeof.APPDATA. |
3296 | clevermous | 820 | ; Called by anyone. |
821 | proc request_terminate |
||
822 | xor eax, eax ; set return value |
||
823 | ; Atomically clear the upper bit. If it was already zero, then |
||
824 | ; somebody has requested termination before us, so just exit. |
||
9715 | Doczom | 825 | lock btr [edx + APPDATA.terminate_protection], 31 |
3296 | clevermous | 826 | jnc .unsafe |
827 | ; Atomically decrement depth of critical areas. |
||
9715 | Doczom | 828 | lock dec [edx + APPDATA.terminate_protection] |
3296 | clevermous | 829 | ; If the result of decrement is nonzero, the target thread is inside a |
830 | ; critical area; leave termination to leaving that area. |
||
831 | jnz .unsafe |
||
832 | ; Otherwise, it is safe to kill the target now and the caller is responsible |
||
833 | ; for this. Return eax=1. |
||
834 | inc eax |
||
835 | .unsafe: |
||
836 | ret |
||
837 | endp |
||
838 |