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Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
593 | mikedld | 8 | $Revision: 1074 $ |
9 | |||
10 | |||
357 | serge | 11 | GREEDY_KERNEL equ 0 |
164 | serge | 12 | |
13 | struc APP_HEADER_00 |
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14 | { .banner dq ? |
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15 | .version dd ? ;+8 |
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16 | .start dd ? ;+12 |
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17 | .i_end dd ? ;+16 |
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18 | .mem_size dd ? ;+20 |
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19 | .i_param dd ? ;+24 |
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20 | } |
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21 | |||
22 | struc APP_HEADER_01 |
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23 | { .banner dq ? |
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24 | .version dd ? ;+8 |
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25 | .start dd ? ;+12 |
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26 | .i_end dd ? ;+16 |
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27 | .mem_size dd ? ;+20 |
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28 | .stack_top dd ? ;+24 |
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29 | .i_param dd ? ;+28 |
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30 | .i_icon dd ? ;+32 |
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31 | } |
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32 | |||
237 | serge | 33 | |
34 | struc APP_PARAMS |
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1074 | Galkov | 35 | { .app_cmdline ;0x00 |
36 | .app_path ;0x04 |
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37 | .app_eip ;0x08 |
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38 | .app_esp ;0x0C |
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39 | .app_mem ;0x10 |
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237 | serge | 40 | } |
41 | |||
42 | macro _clear_ op |
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43 | { mov ecx, op/4 |
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44 | xor eax, eax |
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45 | cld |
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46 | rep stosd |
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47 | } |
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48 | |||
521 | diamond | 49 | fs_execute_from_sysdir: |
1074 | Galkov | 50 | xor ebx, ebx |
51 | xor edx, edx |
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52 | mov esi, sysdir_path |
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363 | serge | 53 | |
164 | serge | 54 | align 4 |
363 | serge | 55 | proc fs_execute |
56 | |||
57 | ;fn_read:dword, file_size:dword, cluster:dword |
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58 | |||
59 | ; ebx - cmdline |
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60 | ; edx - flags |
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61 | ; ebp - full filename |
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62 | ; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it |
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63 | |||
1074 | Galkov | 64 | locals |
65 | cmdline rd 64 ;256/4 |
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66 | filename rd 256 ;1024/4 |
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67 | flags dd ? |
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363 | serge | 68 | |
1074 | Galkov | 69 | save_cr3 dd ? |
70 | slot dd ? |
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71 | slot_base dd ? |
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72 | file_base dd ? |
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73 | file_size dd ? |
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74 | ;app header data |
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75 | hdr_cmdline dd ? ;0x00 |
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76 | hdr_path dd ? ;0x04 |
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77 | hdr_eip dd ? ;0x08 |
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78 | hdr_esp dd ? ;0x0C |
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79 | hdr_mem dd ? ;0x10 |
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80 | hdr_i_end dd ? ;0x14 |
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81 | endl |
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164 | serge | 82 | |
1074 | Galkov | 83 | pushad |
363 | serge | 84 | |
1074 | Galkov | 85 | mov [flags], edx |
363 | serge | 86 | |
87 | ; [ebp] pointer to filename |
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88 | |||
1074 | Galkov | 89 | lea edi, [filename] |
90 | lea ecx, [edi+1024] |
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91 | mov al, '/' |
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92 | stosb |
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521 | diamond | 93 | @@: |
1074 | Galkov | 94 | cmp edi, ecx |
95 | jae .bigfilename |
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96 | lodsb |
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97 | stosb |
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98 | test al, al |
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99 | jnz @b |
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100 | mov esi, [ebp] |
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101 | test esi, esi |
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102 | jz .namecopied |
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103 | mov byte [edi-1], '/' |
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521 | diamond | 104 | @@: |
1074 | Galkov | 105 | cmp edi, ecx |
106 | jae .bigfilename |
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107 | lodsb |
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108 | stosb |
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109 | test al, al |
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110 | jnz @b |
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111 | jmp .namecopied |
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521 | diamond | 112 | .bigfilename: |
1074 | Galkov | 113 | popad |
114 | mov eax, -ERROR_FILE_NOT_FOUND |
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115 | ret |
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521 | diamond | 116 | .namecopied: |
363 | serge | 117 | |
1074 | Galkov | 118 | mov [cmdline], ebx |
119 | test ebx, ebx |
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120 | jz @F |
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519 | serge | 121 | |
1074 | Galkov | 122 | lea eax, [cmdline] |
123 | mov dword [eax+252], 0 |
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124 | stdcall strncpy, eax, ebx, 255 |
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519 | serge | 125 | @@: |
1074 | Galkov | 126 | lea eax, [filename] |
127 | stdcall load_file, eax |
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128 | mov ecx, -ERROR_FILE_NOT_FOUND |
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129 | test eax, eax |
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130 | jz .err_file |
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237 | serge | 131 | |
1074 | Galkov | 132 | mov [file_base], eax |
133 | mov [file_size], ebx |
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237 | serge | 134 | |
1074 | Galkov | 135 | lea ebx, [hdr_cmdline] |
136 | call test_app_header |
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137 | mov ecx, -0x1F |
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138 | test eax, eax |
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139 | jz .err_hdr |
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237 | serge | 140 | |
1074 | Galkov | 141 | ;mov esi, new_process_loading |
142 | ;call sys_msg_board_str ; write message to message board |
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237 | serge | 143 | |
144 | .wait_lock: |
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1074 | Galkov | 145 | cmp [application_table_status],0 |
146 | je .get_lock |
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147 | call change_task |
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148 | jmp .wait_lock |
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237 | serge | 149 | |
150 | .get_lock: |
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1074 | Galkov | 151 | mov eax, 1 |
152 | xchg eax, [application_table_status] |
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153 | cmp eax, 0 |
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154 | jne .wait_lock |
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237 | serge | 155 | |
1074 | Galkov | 156 | call set_application_table_status |
237 | serge | 157 | |
1074 | Galkov | 158 | call get_new_process_place |
159 | test eax, eax |
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160 | mov ecx, -0x20 ; too many processes |
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161 | jz .err |
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237 | serge | 162 | |
1074 | Galkov | 163 | mov [slot], eax |
164 | shl eax, 8 |
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165 | add eax, SLOT_BASE |
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166 | mov [slot_base], eax |
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167 | mov edi, eax |
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168 | _clear_ 256 ;clean extended information about process |
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237 | serge | 169 | |
170 | ; write application name |
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1074 | Galkov | 171 | lea eax, [filename] |
172 | stdcall strrchr, eax, '/' ; now eax points to name without path |
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237 | serge | 173 | |
1074 | Galkov | 174 | lea esi, [eax+1] |
175 | test eax, eax |
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176 | jnz @F |
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177 | lea esi, [filename] |
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237 | serge | 178 | @@: |
1074 | Galkov | 179 | mov ecx, 8 ; 8 chars for name |
180 | mov edi, [slot_base] |
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237 | serge | 181 | .copy_process_name_loop: |
1074 | Galkov | 182 | lodsb |
183 | cmp al, '.' |
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184 | jz .copy_process_name_done |
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185 | test al, al |
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186 | jz .copy_process_name_done |
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187 | stosb |
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188 | loop .copy_process_name_loop |
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237 | serge | 189 | .copy_process_name_done: |
190 | |||
1074 | Galkov | 191 | mov ebx, cr3 |
192 | mov [save_cr3], ebx |
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269 | serge | 193 | |
1074 | Galkov | 194 | stdcall create_app_space,[hdr_mem],[file_base],[file_size] |
195 | mov ecx, -30 ; no memory |
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196 | test eax, eax |
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197 | jz .failed |
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237 | serge | 198 | |
1074 | Galkov | 199 | mov ebx,[slot_base] |
200 | mov [ebx+APPDATA.dir_table],eax |
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201 | mov eax,[hdr_mem] |
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202 | mov [ebx+APPDATA.mem_size],eax |
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237 | serge | 203 | |
357 | serge | 204 | if GREEDY_KERNEL |
205 | else |
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1074 | Galkov | 206 | mov ecx, [hdr_mem] |
207 | mov edi, [file_size] |
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208 | add edi, 4095 |
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209 | and edi, not 4095 |
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210 | sub ecx, edi |
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211 | jna @F |
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269 | serge | 212 | |
1074 | Galkov | 213 | xor eax, eax |
819 | serge | 214 | cld |
1074 | Galkov | 215 | rep stosb |
247 | serge | 216 | @@: |
269 | serge | 217 | end if |
218 | |||
219 | ; release only virtual space, not phisical memory |
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220 | |||
1074 | Galkov | 221 | stdcall free_kernel_space, [file_base] |
222 | lea eax, [hdr_cmdline] |
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223 | lea ebx, [cmdline] |
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224 | lea ecx, [filename] |
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225 | stdcall set_app_params ,[slot],eax,ebx,ecx,[flags] |
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237 | serge | 226 | |
1074 | Galkov | 227 | mov eax, [save_cr3] |
228 | call set_cr3 |
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237 | serge | 229 | |
1074 | Galkov | 230 | xor ebx, ebx |
231 | mov [application_table_status],ebx ;unlock application_table_status mutex |
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232 | mov eax,[process_number] ;set result |
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233 | ret |
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237 | serge | 234 | .failed: |
1074 | Galkov | 235 | mov eax, [save_cr3] |
236 | call set_cr3 |
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269 | serge | 237 | .err: |
247 | serge | 238 | .err_hdr: |
1074 | Galkov | 239 | stdcall kernel_free,[file_base] |
247 | serge | 240 | .err_file: |
1074 | Galkov | 241 | xor eax, eax |
242 | mov [application_table_status],eax |
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243 | mov eax, ecx |
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244 | ret |
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237 | serge | 245 | endp |
164 | serge | 246 | |
237 | serge | 247 | align 4 |
248 | test_app_header: |
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1074 | Galkov | 249 | virtual at eax |
250 | APP_HEADER_00 APP_HEADER_00 |
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251 | end virtual |
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252 | virtual at eax |
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253 | APP_HEADER_01 APP_HEADER_01 |
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254 | end virtual |
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164 | serge | 255 | |
1074 | Galkov | 256 | cmp dword [eax], 'MENU' |
257 | jne .fail |
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258 | cmp word [eax+4],'ET' |
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259 | jne .fail |
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164 | serge | 260 | |
1074 | Galkov | 261 | cmp [eax+6], word '00' |
262 | jne .check_01_header |
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164 | serge | 263 | |
1074 | Galkov | 264 | mov ecx,[APP_HEADER_00.start] |
265 | mov [ebx+0x08], ecx ;app_eip |
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266 | mov edx,[APP_HEADER_00.mem_size] |
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267 | mov [ebx+0x10], edx ;app_mem |
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268 | shr edx,1 |
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269 | sub edx,0x10 |
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270 | mov [ebx+0x0C], edx ;app_esp |
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271 | mov ecx,[APP_HEADER_00.i_param] |
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272 | mov [ebx], ecx ;app_cmdline |
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273 | mov [ebx+4], dword 0 ;app_path |
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274 | mov edx, [APP_HEADER_00.i_end] |
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275 | mov [ebx+0x14], edx |
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276 | ret |
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164 | serge | 277 | |
237 | serge | 278 | .check_01_header: |
164 | serge | 279 | |
1074 | Galkov | 280 | cmp [eax+6],word '01' |
281 | jne .fail |
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237 | serge | 282 | |
1074 | Galkov | 283 | mov ecx,[APP_HEADER_01.start] |
284 | mov [ebx+0x08], ecx ;app_eip |
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285 | mov edx,[APP_HEADER_01.mem_size] |
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381 | serge | 286 | |
287 | ; \begin{diamond}[20.08.2006] |
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288 | ; sanity check (functions 19,58 load app_i_end bytes and that must |
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289 | ; fit in allocated memory to prevent kernel faults) |
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1074 | Galkov | 290 | cmp edx,[APP_HEADER_01.i_end] |
291 | jb .fail |
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381 | serge | 292 | ; \end{diamond}[20.08.2006] |
293 | |||
1074 | Galkov | 294 | mov [ebx+0x10], edx ;app_mem |
295 | mov ecx,[APP_HEADER_01.stack_top] |
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296 | mov [ebx+0x0C], ecx ;app_esp |
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297 | mov edx,[APP_HEADER_01.i_param] |
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298 | mov [ebx], edx ;app_cmdline |
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299 | mov ecx,[APP_HEADER_01.i_icon] |
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300 | mov [ebx+4], ecx ;app_path |
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301 | mov edx, [APP_HEADER_01.i_end] |
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302 | mov [ebx+0x14], edx |
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303 | ret |
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237 | serge | 304 | .fail: |
1074 | Galkov | 305 | xor eax, eax |
306 | ret |
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164 | serge | 307 | |
308 | align 4 |
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309 | proc get_new_process_place |
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310 | ;input: |
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311 | ; none |
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312 | ;result: |
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313 | ; eax=[new_process_place]<>0 - ok |
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314 | ; 0 - failed. |
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315 | ;This function find least empty slot. |
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316 | ;It doesn't increase [TASK_COUNT]! |
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1074 | Galkov | 317 | mov eax,CURRENT_TASK |
318 | mov ebx,[TASK_COUNT] |
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319 | inc ebx |
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320 | shl ebx,5 |
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321 | add ebx,eax ;ebx - address of process information for (last+1) slot |
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164 | serge | 322 | .newprocessplace: |
323 | ;eax = address of process information for current slot |
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1074 | Galkov | 324 | cmp eax,ebx |
325 | jz .endnewprocessplace ;empty slot after high boundary |
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326 | add eax,0x20 |
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327 | cmp word [eax+0xa],9 ;check process state, 9 means that process slot is empty |
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328 | jnz .newprocessplace |
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164 | serge | 329 | .endnewprocessplace: |
1074 | Galkov | 330 | mov ebx,eax |
331 | sub eax,CURRENT_TASK |
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332 | shr eax,5 ;calculate slot index |
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333 | cmp eax,256 |
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334 | jge .failed ;it should be <256 |
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335 | mov word [ebx+0xa],9 ;set process state to 9 (for slot after hight boundary) |
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336 | ret |
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164 | serge | 337 | .failed: |
1074 | Galkov | 338 | xor eax,eax |
339 | ret |
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164 | serge | 340 | endp |
341 | |||
342 | align 4 |
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269 | serge | 343 | proc create_app_space stdcall, app_size:dword,img_base:dword,img_size:dword |
1074 | Galkov | 344 | locals |
345 | app_pages dd ? |
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346 | img_pages dd ? |
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347 | dir_addr dd ? |
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348 | app_tabs dd ? |
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349 | endl |
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164 | serge | 350 | |
1074 | Galkov | 351 | mov ebx, pg_data.pg_mutex |
352 | call wait_mutex ;ebx |
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164 | serge | 353 | |
1074 | Galkov | 354 | xor eax, eax |
355 | mov [dir_addr], eax |
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164 | serge | 356 | |
1074 | Galkov | 357 | mov eax, [app_size] |
358 | add eax, 4095 |
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359 | and eax, NOT(4095) |
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360 | mov [app_size], eax |
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361 | mov ebx, eax |
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362 | shr eax, 12 |
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363 | mov [app_pages], eax |
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170 | serge | 364 | |
1074 | Galkov | 365 | add ebx, 0x3FFFFF |
366 | and ebx, NOT(0x3FFFFF) |
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367 | shr ebx, 22 |
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368 | mov [app_tabs], ebx |
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164 | serge | 369 | |
1074 | Galkov | 370 | mov ecx, [img_size] |
371 | add ecx, 4095 |
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372 | and ecx, NOT(4095) |
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164 | serge | 373 | |
1074 | Galkov | 374 | mov [img_size], ecx |
375 | shr ecx, 12 |
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376 | mov [img_pages], ecx |
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164 | serge | 377 | |
170 | serge | 378 | if GREEDY_KERNEL |
1074 | Galkov | 379 | lea eax, [ecx+ebx+2] ;only image size |
170 | serge | 380 | else |
1074 | Galkov | 381 | lea eax, [eax+ebx+2] ;all requested memory |
170 | serge | 382 | end if |
1074 | Galkov | 383 | cmp eax, [pg_data.pages_free] |
384 | ja .fail |
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170 | serge | 385 | |
1074 | Galkov | 386 | call alloc_page |
387 | test eax, eax |
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388 | jz .fail |
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389 | mov [dir_addr], eax |
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390 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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164 | serge | 391 | |
1074 | Galkov | 392 | mov edi, [tmp_task_pdir] |
393 | mov ecx, (OS_BASE shr 20)/4 |
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394 | xor eax, eax |
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395 | cld |
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396 | rep stosd |
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465 | serge | 397 | |
1074 | Galkov | 398 | mov ecx, (OS_BASE shr 20)/4 |
399 | mov esi, sys_pgdir+(OS_BASE shr 20) |
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400 | rep movsd |
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164 | serge | 401 | |
1074 | Galkov | 402 | mov eax, [dir_addr] |
403 | or eax, PG_SW |
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404 | mov [edi-4096+(page_tabs shr 20)], eax |
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378 | serge | 405 | |
1074 | Galkov | 406 | and eax, -4096 |
407 | call set_cr3 |
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164 | serge | 408 | |
1074 | Galkov | 409 | mov edx, [app_tabs] |
410 | mov edi, new_app_base |
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164 | serge | 411 | @@: |
1074 | Galkov | 412 | call alloc_page |
413 | test eax, eax |
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414 | jz .fail |
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164 | serge | 415 | |
1074 | Galkov | 416 | stdcall map_page_table, edi, eax |
417 | add edi, 0x00400000 |
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418 | dec edx |
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419 | jnz @B |
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164 | serge | 420 | |
1074 | Galkov | 421 | mov edi, new_app_base |
422 | shr edi, 10 |
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423 | add edi, page_tabs |
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269 | serge | 424 | |
1074 | Galkov | 425 | mov ecx, [app_tabs] |
426 | shl ecx, 10 |
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427 | xor eax, eax |
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428 | rep stosd |
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164 | serge | 429 | |
1074 | Galkov | 430 | mov ecx, [img_pages] |
431 | mov ebx, PG_UW |
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432 | mov edx, new_app_base |
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433 | mov esi, [img_base] |
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434 | mov edi, new_app_base |
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435 | shr esi, 10 |
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436 | shr edi, 10 |
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437 | add esi, page_tabs |
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438 | add edi, page_tabs |
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269 | serge | 439 | .remap: |
1074 | Galkov | 440 | lodsd |
441 | or eax, ebx ; force user level r/w access |
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442 | stosd |
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443 | add edx, 0x1000 |
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444 | dec [app_pages] |
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445 | dec ecx |
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446 | jnz .remap |
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269 | serge | 447 | |
1074 | Galkov | 448 | mov ecx, [app_pages] |
449 | test ecx, ecx |
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450 | jz .done |
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269 | serge | 451 | |
452 | if GREEDY_KERNEL |
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1074 | Galkov | 453 | mov eax, 0x02 |
819 | serge | 454 | rep stosd |
269 | serge | 455 | else |
456 | |||
164 | serge | 457 | .alloc: |
1074 | Galkov | 458 | call alloc_page |
459 | test eax, eax |
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460 | jz .fail |
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164 | serge | 461 | |
1074 | Galkov | 462 | stdcall map_page,edx,eax,dword PG_UW |
463 | add edx, 0x1000 |
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464 | dec [app_pages] |
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465 | jnz .alloc |
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269 | serge | 466 | end if |
164 | serge | 467 | |
269 | serge | 468 | .done: |
1074 | Galkov | 469 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
164 | serge | 470 | |
1074 | Galkov | 471 | dec [pg_data.pg_mutex] |
472 | mov eax, [dir_addr] |
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473 | ret |
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164 | serge | 474 | .fail: |
1074 | Galkov | 475 | dec [pg_data.pg_mutex] |
476 | cmp [dir_addr], 0 |
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477 | je @f |
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478 | stdcall destroy_app_space, [dir_addr] |
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164 | serge | 479 | @@: |
1074 | Galkov | 480 | xor eax, eax |
481 | ret |
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164 | serge | 482 | endp |
483 | |||
484 | align 4 |
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485 | set_cr3: |
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465 | serge | 486 | |
1074 | Galkov | 487 | mov ebx, [current_slot] |
488 | mov [ebx+APPDATA.dir_table], eax |
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489 | mov cr3, eax |
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490 | ret |
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164 | serge | 491 | |
492 | align 4 |
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493 | proc destroy_page_table stdcall, pg_tab:dword |
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494 | |||
1074 | Galkov | 495 | push esi |
164 | serge | 496 | |
1074 | Galkov | 497 | mov esi, [pg_tab] |
498 | mov ecx, 1024 |
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164 | serge | 499 | .free: |
1074 | Galkov | 500 | mov eax, [esi] |
501 | test eax, 1 |
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502 | jz .next |
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819 | serge | 503 | test eax, 1 shl 9 |
504 | jnz .next ;skip shared pages |
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1074 | Galkov | 505 | call free_page |
164 | serge | 506 | .next: |
1074 | Galkov | 507 | add esi, 4 |
508 | dec ecx |
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509 | jnz .free |
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510 | pop esi |
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511 | ret |
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164 | serge | 512 | endp |
513 | |||
514 | align 4 |
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515 | proc destroy_app_space stdcall, pg_dir:dword |
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516 | |||
1074 | Galkov | 517 | mov ebx, pg_data.pg_mutex |
518 | call wait_mutex ;ebx |
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164 | serge | 519 | |
1074 | Galkov | 520 | xor edx,edx |
521 | mov eax,0x2 |
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522 | mov ebx, [pg_dir] |
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164 | serge | 523 | .loop: |
524 | ;eax = current slot of process |
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1074 | Galkov | 525 | mov ecx,eax |
526 | shl ecx,5 |
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527 | cmp byte [CURRENT_TASK+ecx+0xa],9 ;if process running? |
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528 | jz @f ;skip empty slots |
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529 | shl ecx,3 |
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530 | cmp [SLOT_BASE+ecx+0xB8],ebx ;compare page directory addresses |
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531 | jnz @f |
||
532 | inc edx ;thread found |
||
164 | serge | 533 | @@: |
1074 | Galkov | 534 | inc eax |
535 | cmp eax,[TASK_COUNT] ;exit loop if we look through all processes |
||
536 | jle .loop |
||
164 | serge | 537 | |
538 | ;edx = number of threads |
||
539 | ;our process is zombi so it isn't counted |
||
1074 | Galkov | 540 | cmp edx,1 |
541 | jg .exit |
||
164 | serge | 542 | ;if there isn't threads then clear memory. |
543 | |||
1074 | Galkov | 544 | mov eax, [pg_dir] |
545 | and eax, not 0xFFF |
||
546 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
||
547 | mov esi, [tmp_task_pdir] |
||
548 | mov edi, (OS_BASE shr 20)/4 |
||
164 | serge | 549 | .destroy: |
1074 | Galkov | 550 | mov eax, [esi] |
551 | test eax, 1 |
||
552 | jz .next |
||
553 | and eax, not 0xFFF |
||
554 | stdcall map_page,[tmp_task_ptab],eax,dword PG_SW |
||
555 | stdcall destroy_page_table, [tmp_task_ptab] |
||
556 | mov eax, [esi] |
||
557 | call free_page |
||
164 | serge | 558 | .next: |
1074 | Galkov | 559 | add esi, 4 |
560 | dec edi |
||
561 | jnz .destroy |
||
164 | serge | 562 | |
1074 | Galkov | 563 | mov eax, [pg_dir] |
564 | call free_page |
||
164 | serge | 565 | .exit: |
1074 | Galkov | 566 | stdcall map_page,[tmp_task_ptab],dword 0,dword PG_UNMAP |
567 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
||
568 | dec [pg_data.pg_mutex] |
||
569 | ret |
||
164 | serge | 570 | endp |
571 | |||
520 | serge | 572 | align 4 |
573 | get_pid: |
||
1074 | Galkov | 574 | mov eax, [TASK_BASE] |
819 | serge | 575 | mov eax, [eax+TASKDATA.pid] |
1074 | Galkov | 576 | ret |
520 | serge | 577 | |
164 | serge | 578 | pid_to_slot: |
579 | ;Input: |
||
580 | ; eax - pid of process |
||
581 | ;Output: |
||
582 | ; eax - slot of process or 0 if process don't exists |
||
583 | ;Search process by PID. |
||
584 | push ebx |
||
585 | push ecx |
||
586 | mov ebx,[TASK_COUNT] |
||
587 | shl ebx,5 |
||
588 | mov ecx,2*32 |
||
589 | |||
590 | .loop: |
||
591 | ;ecx=offset of current process info entry |
||
592 | ;ebx=maximum permitted offset |
||
593 | cmp byte [CURRENT_TASK+ecx+0xa],9 |
||
1074 | Galkov | 594 | jz .endloop ;skip empty slots |
164 | serge | 595 | cmp [CURRENT_TASK+ecx+0x4],eax ;check PID |
1074 | Galkov | 596 | jz .pid_found |
164 | serge | 597 | .endloop: |
598 | add ecx,32 |
||
599 | cmp ecx,ebx |
||
600 | jle .loop |
||
601 | |||
602 | pop ecx |
||
603 | pop ebx |
||
604 | xor eax,eax |
||
605 | ret |
||
606 | |||
607 | .pid_found: |
||
608 | shr ecx,5 |
||
1074 | Galkov | 609 | mov eax,ecx ;convert offset to index of slot |
164 | serge | 610 | pop ecx |
611 | pop ebx |
||
612 | ret |
||
613 | |||
614 | check_region: |
||
615 | ;input: |
||
616 | ; ebx - start of buffer |
||
617 | ; ecx - size of buffer |
||
618 | ;result: |
||
619 | ; eax = 1 region lays in app memory |
||
620 | ; eax = 0 region don't lays in app memory |
||
621 | mov eax,[CURRENT_TASK] |
||
622 | jmp check_process_region |
||
623 | ;----------------------------------------------------------------------------- |
||
624 | check_process_region: |
||
625 | ;input: |
||
626 | ; eax - slot |
||
627 | ; ebx - start of buffer |
||
628 | ; ecx - size of buffer |
||
629 | ;result: |
||
630 | ; eax = 1 region lays in app memory |
||
631 | ; eax = 0 region don't lays in app memory |
||
632 | |||
633 | test ecx,ecx |
||
634 | jle .ok |
||
635 | shl eax,5 |
||
636 | cmp word [CURRENT_TASK+eax+0xa],0 |
||
637 | jnz .failed |
||
638 | shl eax,3 |
||
380 | serge | 639 | mov eax,[SLOT_BASE+eax+0xb8] |
164 | serge | 640 | test eax,eax |
641 | jz .failed |
||
642 | |||
643 | mov eax,1 |
||
644 | ret |
||
645 | |||
646 | |||
647 | ; call MEM_Get_Linear_Address |
||
648 | ; push ebx |
||
649 | ; push ecx |
||
650 | ; push edx |
||
651 | ; mov edx,ebx |
||
652 | ; and edx,not (4096-1) |
||
653 | ; sub ebx,edx |
||
654 | ; add ecx,ebx |
||
655 | ; mov ebx,edx |
||
656 | ; add ecx,(4096-1) |
||
657 | ; and ecx,not (4096-1) |
||
658 | ;.loop: |
||
659 | ;;eax - linear address of page directory |
||
660 | ;;ebx - current page |
||
661 | ;;ecx - current size |
||
662 | ; mov edx,ebx |
||
663 | ; shr edx,22 |
||
664 | ; mov edx,[eax+4*edx] |
||
665 | ; and edx,not (4096-1) |
||
666 | ; test edx,edx |
||
667 | ; jz .failed1 |
||
668 | ; push eax |
||
669 | ; mov eax,edx |
||
670 | ; call MEM_Get_Linear_Address |
||
671 | ; mov edx,ebx |
||
672 | ; shr edx,12 |
||
673 | ; and edx,(1024-1) |
||
674 | ; mov eax,[eax+4*edx] |
||
675 | ; and eax,not (4096-1) |
||
676 | ; test eax,eax |
||
677 | ; pop eax |
||
678 | ; jz .failed1 |
||
679 | ; add ebx,4096 |
||
680 | ; sub ecx,4096 |
||
681 | ; jg .loop |
||
682 | ; pop edx |
||
683 | ; pop ecx |
||
684 | ; pop ebx |
||
685 | .ok: |
||
686 | mov eax,1 |
||
687 | ret |
||
688 | ; |
||
689 | ;.failed1: |
||
690 | ; pop edx |
||
691 | ; pop ecx |
||
692 | ; pop ebx |
||
693 | .failed: |
||
694 | xor eax,eax |
||
695 | ret |
||
696 | |||
697 | align 4 |
||
698 | proc read_process_memory |
||
699 | ;Input: |
||
700 | ; eax - process slot |
||
701 | ; ebx - buffer address |
||
702 | ; ecx - buffer size |
||
703 | ; edx - start address in other process |
||
704 | ;Output: |
||
705 | ; eax - number of bytes read. |
||
1074 | Galkov | 706 | locals |
707 | slot dd ? |
||
708 | buff dd ? |
||
709 | r_count dd ? |
||
710 | offset dd ? |
||
711 | tmp_r_cnt dd ? |
||
712 | endl |
||
164 | serge | 713 | |
1074 | Galkov | 714 | mov [slot], eax |
715 | mov [buff], ebx |
||
716 | and [r_count], 0 |
||
717 | mov [tmp_r_cnt], ecx |
||
718 | mov [offset], edx |
||
164 | serge | 719 | |
1074 | Galkov | 720 | pushad |
164 | serge | 721 | .read_mem: |
1074 | Galkov | 722 | mov edx, [offset] |
723 | mov ebx, [tmp_r_cnt] |
||
164 | serge | 724 | |
1074 | Galkov | 725 | mov ecx, 0x400000 |
726 | and edx, 0x3FFFFF |
||
727 | sub ecx, edx |
||
728 | cmp ecx, ebx |
||
729 | jbe @f |
||
730 | mov ecx, ebx |
||
164 | serge | 731 | @@: |
1074 | Galkov | 732 | cmp ecx, 0x8000 |
733 | jna @F |
||
734 | mov ecx, 0x8000 |
||
164 | serge | 735 | @@: |
1074 | Galkov | 736 | mov eax, [slot] |
737 | shl eax,8 |
||
738 | mov ebx, [offset] |
||
465 | serge | 739 | ; add ebx, new_app_base |
1074 | Galkov | 740 | push ecx |
741 | stdcall map_memEx, [proc_mem_map],\ |
||
742 | [SLOT_BASE+eax+0xB8],\ |
||
743 | ebx, ecx |
||
744 | pop ecx |
||
164 | serge | 745 | |
1074 | Galkov | 746 | mov esi, [offset] |
747 | and esi, 0xfff |
||
748 | add esi, [proc_mem_map] |
||
749 | mov edi, [buff] |
||
750 | mov edx, ecx |
||
751 | rep movsb |
||
752 | add [r_count], edx |
||
164 | serge | 753 | |
1074 | Galkov | 754 | add [offset], edx |
755 | sub [tmp_r_cnt], edx |
||
756 | jnz .read_mem |
||
164 | serge | 757 | |
1074 | Galkov | 758 | popad |
759 | mov eax, [r_count] |
||
760 | ret |
||
164 | serge | 761 | endp |
762 | |||
763 | align 4 |
||
764 | proc write_process_memory |
||
765 | ;Input: |
||
766 | ; eax - process slot |
||
767 | ; ebx - buffer address |
||
768 | ; ecx - buffer size |
||
769 | ; edx - start address in other process |
||
770 | ;Output: |
||
771 | ; eax - number of bytes written |
||
772 | |||
1074 | Galkov | 773 | locals |
774 | slot dd ? |
||
775 | buff dd ? |
||
776 | w_count dd ? |
||
777 | offset dd ? |
||
778 | tmp_w_cnt dd ? |
||
779 | endl |
||
164 | serge | 780 | |
1074 | Galkov | 781 | mov [slot], eax |
782 | mov [buff], ebx |
||
783 | and [w_count], 0 |
||
784 | mov [tmp_w_cnt], ecx |
||
785 | mov [offset], edx |
||
164 | serge | 786 | |
1074 | Galkov | 787 | pushad |
164 | serge | 788 | .read_mem: |
1074 | Galkov | 789 | mov edx, [offset] |
790 | mov ebx, [tmp_w_cnt] |
||
164 | serge | 791 | |
1074 | Galkov | 792 | mov ecx, 0x400000 |
793 | and edx, 0x3FFFFF |
||
794 | sub ecx, edx |
||
795 | cmp ecx, ebx |
||
796 | jbe @f |
||
797 | mov ecx, ebx |
||
164 | serge | 798 | @@: |
1074 | Galkov | 799 | cmp ecx, 0x8000 |
800 | jna @F |
||
801 | mov ecx, 0x8000 |
||
164 | serge | 802 | @@: |
1074 | Galkov | 803 | mov eax, [slot] |
804 | shl eax,8 |
||
805 | mov ebx, [offset] |
||
465 | serge | 806 | ; add ebx, new_app_base |
1074 | Galkov | 807 | push ecx |
808 | stdcall map_memEx, [proc_mem_map],\ |
||
809 | [SLOT_BASE+eax+0xB8],\ |
||
810 | ebx, ecx |
||
811 | pop ecx |
||
164 | serge | 812 | |
1074 | Galkov | 813 | mov edi, [offset] |
814 | and edi, 0xfff |
||
815 | add edi, [proc_mem_map] |
||
816 | mov esi, [buff] |
||
817 | mov edx, ecx |
||
818 | rep movsb |
||
164 | serge | 819 | |
1074 | Galkov | 820 | add [w_count], edx |
821 | add [offset], edx |
||
822 | sub [tmp_w_cnt], edx |
||
823 | jnz .read_mem |
||
164 | serge | 824 | |
1074 | Galkov | 825 | popad |
826 | mov eax, [w_count] |
||
827 | ret |
||
164 | serge | 828 | endp |
829 | |||
830 | align 4 |
||
831 | proc new_sys_threads |
||
1074 | Galkov | 832 | locals |
833 | slot dd ? |
||
834 | app_cmdline dd ? ;0x00 |
||
835 | app_path dd ? ;0x04 |
||
836 | app_eip dd ? ;0x08 |
||
837 | app_esp dd ? ;0x0C |
||
838 | app_mem dd ? ;0x10 |
||
839 | endl |
||
164 | serge | 840 | |
1074 | Galkov | 841 | cmp eax,1 |
842 | jne .failed ;other subfunctions |
||
164 | serge | 843 | |
1074 | Galkov | 844 | xor eax,eax |
845 | mov [app_cmdline], eax |
||
846 | mov [app_path], eax |
||
847 | mov [app_eip], ebx |
||
848 | mov [app_esp], ecx |
||
164 | serge | 849 | |
1074 | Galkov | 850 | ;mov esi,new_process_loading |
851 | ;call sys_msg_board_str |
||
164 | serge | 852 | .wait_lock: |
1074 | Galkov | 853 | cmp [application_table_status],0 |
854 | je .get_lock |
||
855 | call change_task |
||
856 | jmp .wait_lock |
||
164 | serge | 857 | |
858 | .get_lock: |
||
1074 | Galkov | 859 | mov eax, 1 |
860 | xchg eax, [application_table_status] |
||
861 | cmp eax, 0 |
||
862 | jne .wait_lock |
||
164 | serge | 863 | |
1074 | Galkov | 864 | call set_application_table_status |
164 | serge | 865 | |
1074 | Galkov | 866 | call get_new_process_place |
867 | test eax, eax |
||
868 | jz .failed |
||
164 | serge | 869 | |
1074 | Galkov | 870 | mov [slot], eax |
164 | serge | 871 | |
1074 | Galkov | 872 | mov esi,[current_slot] |
873 | mov ebx,esi ;ebx=esi - pointer to extended information about current thread |
||
164 | serge | 874 | |
1074 | Galkov | 875 | mov edi, eax |
876 | shl edi,8 |
||
877 | add edi,SLOT_BASE |
||
878 | mov edx,edi ;edx=edi - pointer to extended infomation about new thread |
||
879 | mov ecx,256/4 |
||
880 | xor eax, eax |
||
881 | cld |
||
882 | rep stosd ;clean extended information about new thread |
||
883 | mov esi,ebx |
||
884 | mov edi,edx |
||
885 | mov ecx,11 |
||
886 | rep movsb ;copy process name |
||
164 | serge | 887 | |
1074 | Galkov | 888 | mov eax,[ebx+APPDATA.heap_base] |
889 | mov [edx+APPDATA.heap_base], eax |
||
164 | serge | 890 | |
1074 | Galkov | 891 | mov ecx,[ebx+APPDATA.heap_top] |
892 | mov [edx+APPDATA.heap_top], ecx |
||
237 | serge | 893 | |
1074 | Galkov | 894 | mov eax,[ebx+APPDATA.mem_size] |
895 | mov [edx+APPDATA.mem_size], eax |
||
237 | serge | 896 | |
1074 | Galkov | 897 | mov ecx,[ebx+APPDATA.dir_table] |
898 | mov [edx+APPDATA.dir_table],ecx ;copy page directory |
||
237 | serge | 899 | |
1074 | Galkov | 900 | lea eax, [app_cmdline] |
901 | stdcall set_app_params ,[slot],eax,dword 0,\ |
||
902 | dword 0,dword 0 |
||
237 | serge | 903 | |
1074 | Galkov | 904 | ;mov esi,new_process_running |
905 | ;call sys_msg_board_str ;output information about succefull startup |
||
164 | serge | 906 | |
1074 | Galkov | 907 | mov [application_table_status],0 ;unlock application_table_status mutex |
908 | mov eax,[process_number] ;set result |
||
909 | ret |
||
164 | serge | 910 | .failed: |
1074 | Galkov | 911 | mov [application_table_status],0 |
912 | mov eax,-1 |
||
913 | ret |
||
164 | serge | 914 | endp |
915 | |||
276 | serge | 916 | ; param |
917 | ; ebx=mutex |
||
918 | |||
164 | serge | 919 | align 4 |
276 | serge | 920 | wait_mutex: |
1072 | diamond | 921 | ;;Maxis use atomic bts for mutex 4.4.2009 |
1074 | Galkov | 922 | push eax |
923 | push ebx |
||
321 | diamond | 924 | .do_wait: |
1072 | diamond | 925 | bts dword [ebx],0 |
926 | jnc .locked |
||
1074 | Galkov | 927 | call change_task |
928 | jmp .do_wait |
||
1072 | diamond | 929 | .locked: |
1074 | Galkov | 930 | pop ebx |
931 | pop eax |
||
932 | ret |
||
164 | serge | 933 | |
1074 | Galkov | 934 | EFL_IF equ 0x0200 |
465 | serge | 935 | EFL_IOPL1 equ 0x1000 |
936 | EFL_IOPL2 equ 0x2000 |
||
937 | EFL_IOPL3 equ 0x3000 |
||
938 | |||
939 | |||
237 | serge | 940 | align 4 |
941 | proc set_app_params stdcall,slot:dword, params:dword,\ |
||
1074 | Galkov | 942 | cmd_line:dword, app_path:dword, flags:dword |
164 | serge | 943 | |
1074 | Galkov | 944 | locals |
945 | pl0_stack dd ? |
||
946 | endl |
||
237 | serge | 947 | |
1074 | Galkov | 948 | stdcall kernel_alloc, RING0_STACK_SIZE+512 |
949 | mov [pl0_stack], eax |
||
357 | serge | 950 | |
1074 | Galkov | 951 | lea edi, [eax+RING0_STACK_SIZE] |
357 | serge | 952 | |
1074 | Galkov | 953 | mov eax, [slot] |
954 | mov ebx, eax |
||
357 | serge | 955 | |
1074 | Galkov | 956 | shl eax, 8 |
957 | mov [eax+SLOT_BASE+APPDATA.fpu_state], edi |
||
958 | mov [eax+SLOT_BASE+APPDATA.exc_handler], 0 |
||
959 | mov [eax+SLOT_BASE+APPDATA.except_mask], 0 |
||
357 | serge | 960 | |
465 | serge | 961 | ;set default io permission map |
1074 | Galkov | 962 | mov [eax+SLOT_BASE+APPDATA.io_map],\ |
963 | (tss._io_map_0-OS_BASE+PG_MAP) |
||
964 | mov [eax+SLOT_BASE+APPDATA.io_map+4],\ |
||
965 | (tss._io_map_1-OS_BASE+PG_MAP) |
||
465 | serge | 966 | |
1074 | Galkov | 967 | mov esi, fpu_data |
968 | mov ecx, 512/4 |
||
969 | rep movsd |
||
237 | serge | 970 | |
1074 | Galkov | 971 | cmp ebx,[TASK_COUNT] |
972 | jle .noinc |
||
973 | inc dword [TASK_COUNT] ;update number of processes |
||
237 | serge | 974 | .noinc: |
1074 | Galkov | 975 | shl ebx,8 |
976 | lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET] |
||
977 | mov [SLOT_BASE+APPDATA.fd_ev+ebx],edx |
||
978 | mov [SLOT_BASE+APPDATA.bk_ev+ebx],edx |
||
354 | serge | 979 | |
1074 | Galkov | 980 | add edx, APP_OBJ_OFFSET-APP_EV_OFFSET |
981 | mov [SLOT_BASE+APPDATA.fd_obj+ebx],edx |
||
982 | mov [SLOT_BASE+APPDATA.bk_obj+ebx],edx |
||
237 | serge | 983 | |
1074 | Galkov | 984 | mov ecx, [def_cursor] |
985 | mov [SLOT_BASE+APPDATA.cursor+ebx],ecx |
||
986 | mov eax, [pl0_stack] |
||
987 | mov [SLOT_BASE+APPDATA.pl0_stack+ebx],eax |
||
988 | add eax, RING0_STACK_SIZE |
||
989 | mov [SLOT_BASE+APPDATA.saved_esp0+ebx], eax |
||
281 | serge | 990 | |
1074 | Galkov | 991 | push ebx |
992 | stdcall kernel_alloc, 0x1000 |
||
993 | pop ebx |
||
994 | mov esi,[current_slot] |
||
995 | mov esi,[esi+APPDATA.cur_dir] |
||
996 | mov ecx,0x1000/4 |
||
997 | mov edi,eax |
||
998 | mov [ebx+SLOT_BASE+APPDATA.cur_dir],eax |
||
999 | rep movsd |
||
521 | diamond | 1000 | |
1074 | Galkov | 1001 | shr ebx,3 |
1002 | mov eax, new_app_base |
||
1003 | mov dword [CURRENT_TASK+ebx+0x10],eax |
||
237 | serge | 1004 | |
1005 | .add_command_line: |
||
1074 | Galkov | 1006 | mov edx,[params] |
1007 | mov edx,[edx] ;app_cmdline |
||
1008 | test edx,edx |
||
1009 | jz @f ;application doesn't need parameters |
||
281 | serge | 1010 | |
1074 | Galkov | 1011 | mov eax, edx |
1012 | add eax, 256 |
||
1013 | jc @f |
||
281 | serge | 1014 | |
1074 | Galkov | 1015 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
1016 | ja @f |
||
281 | serge | 1017 | |
1074 | Galkov | 1018 | mov byte [edx], 0 ;force empty string if no cmdline given |
1019 | mov eax, [cmd_line] |
||
1020 | test eax, eax |
||
1021 | jz @f |
||
1022 | stdcall strncpy, edx, eax, 256 |
||
237 | serge | 1023 | @@: |
1074 | Galkov | 1024 | mov edx,[params] |
1025 | mov edx, [edx+4] ;app_path |
||
1026 | test edx,edx |
||
1027 | jz @F ;application don't need path of file |
||
1028 | mov eax, edx |
||
1029 | add eax, 1024 |
||
1030 | jc @f |
||
1031 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
||
1032 | ja @f |
||
1033 | stdcall strncpy, edx, [app_path], 1024 |
||
237 | serge | 1034 | @@: |
1074 | Galkov | 1035 | mov ebx,[slot] |
1036 | mov eax,ebx |
||
1037 | shl ebx,5 |
||
1038 | lea ecx,[draw_data+ebx] ;ecx - pointer to draw data |
||
465 | serge | 1039 | |
237 | serge | 1040 | ; set window state to 'normal' (non-minimized/maximized/rolled-up) state |
1074 | Galkov | 1041 | mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL |
1042 | mov [ebx+window_data+WDATA.fl_redraw], 1 |
||
1043 | add ebx,CURRENT_TASK ;ebx - pointer to information about process |
||
1044 | mov [ebx+TASKDATA.wnd_number],al;set window number on screen = process slot |
||
237 | serge | 1045 | |
1074 | Galkov | 1046 | mov [ebx+TASKDATA.event_mask],dword 1+2+4 ;set default event flags (see 40 function) |
237 | serge | 1047 | |
1074 | Galkov | 1048 | inc dword [process_number] |
1049 | mov eax,[process_number] |
||
1050 | mov [ebx+4],eax ;set PID |
||
237 | serge | 1051 | |
1052 | ;set draw data to full screen |
||
1053 | |||
1074 | Galkov | 1054 | mov [ecx+0],dword 0 |
1055 | mov [ecx+4],dword 0 |
||
1056 | mov eax,[Screen_Max_X] |
||
1057 | mov [ecx+8],eax |
||
1058 | mov eax,[Screen_Max_Y] |
||
1059 | mov [ecx+12],eax |
||
237 | serge | 1060 | |
1074 | Galkov | 1061 | mov ebx, [pl0_stack] |
1062 | mov esi,[params] |
||
1063 | lea ecx, [ebx+REG_EIP] |
||
1064 | xor eax, eax |
||
237 | serge | 1065 | |
1074 | Galkov | 1066 | mov [ebx+REG_RET], dword irq0.return |
1067 | mov [ebx+REG_EDI], eax |
||
1068 | mov [ebx+REG_ESI], eax |
||
1069 | mov [ebx+REG_EBP], eax |
||
1070 | mov [ebx+REG_ESP], ecx ;ebx+REG_EIP |
||
1071 | mov [ebx+REG_EBX], eax |
||
1072 | mov [ebx+REG_EDX], eax |
||
1073 | mov [ebx+REG_ECX], eax |
||
1074 | mov [ebx+REG_EAX], eax |
||
237 | serge | 1075 | |
1074 | Galkov | 1076 | mov eax, [esi+0x08] ;app_eip |
1077 | mov [ebx+REG_EIP], eax ;app_entry |
||
1078 | mov [ebx+REG_CS], dword app_code |
||
1079 | mov [ebx+REG_EFLAGS], dword EFL_IOPL1+EFL_IF |
||
465 | serge | 1080 | |
1074 | Galkov | 1081 | mov eax, [esi+0x0C] ;app_esp |
1082 | mov [ebx+REG_APP_ESP], eax ;app_stack |
||
1083 | mov [ebx+REG_SS], dword app_data |
||
237 | serge | 1084 | |
1074 | Galkov | 1085 | lea ecx, [ebx+REG_RET] |
1086 | mov ebx, [slot] |
||
1087 | shl ebx, 5 |
||
1088 | mov [ebx*8+SLOT_BASE+APPDATA.saved_esp], ecx |
||
237 | serge | 1089 | |
1074 | Galkov | 1090 | xor ecx, ecx ; process state - running |
237 | serge | 1091 | ; set if debuggee |
1074 | Galkov | 1092 | test byte [flags], 1 |
1093 | jz .no_debug |
||
1094 | inc ecx ; process state - suspended |
||
1095 | mov eax,[CURRENT_TASK] |
||
1096 | mov [SLOT_BASE+ebx*8+APPDATA.debugger_slot],eax |
||
237 | serge | 1097 | .no_debug: |
1074 | Galkov | 1098 | mov [CURRENT_TASK+ebx+TASKDATA.state], cl |
1099 | ;mov esi,new_process_running |
||
1100 | ;call sys_msg_board_str ;output information about succefull startup |
||
1101 | ret |
||
237 | serge | 1102 | endp |
1103 | |||
164 | serge | 1104 | include "debug.inc"256 |