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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: 774 $ |
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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774 | Rus | 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: |
774 | Rus | 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 | |||
774 | Rus | 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 | |
774 | Rus | 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 | |
774 | Rus | 83 | pushad |
363 | serge | 84 | |
774 | Rus | 85 | mov [flags], edx |
363 | serge | 86 | |
87 | ; [ebp] pointer to filename |
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88 | |||
774 | Rus | 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 | @@: |
774 | Rus | 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 | @@: |
774 | Rus | 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: |
774 | Rus | 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 | |
774 | Rus | 118 | mov [cmdline], ebx |
119 | test ebx, ebx |
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120 | jz @F |
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519 | serge | 121 | |
774 | Rus | 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 | @@: |
774 | Rus | 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 | |
774 | Rus | 132 | mov [file_base], eax |
133 | mov [file_size], ebx |
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237 | serge | 134 | |
774 | Rus | 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 | |
774 | Rus | 141 | ;mov esi, new_process_loading |
142 | ;call sys_msg_board_str ; write message to message board |
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143 | DEBUGF 1,"%s",new_process_loading |
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237 | serge | 144 | |
145 | .wait_lock: |
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774 | Rus | 146 | cmp [application_table_status],0 |
147 | je .get_lock |
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148 | call change_task |
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149 | jmp .wait_lock |
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237 | serge | 150 | |
151 | .get_lock: |
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774 | Rus | 152 | mov eax, 1 |
153 | xchg eax, [application_table_status] |
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154 | cmp eax, 0 |
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155 | jne .wait_lock |
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237 | serge | 156 | |
774 | Rus | 157 | call set_application_table_status |
237 | serge | 158 | |
774 | Rus | 159 | call get_new_process_place |
160 | test eax, eax |
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161 | mov ecx, -0x20 ; too many processes |
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162 | jz .err |
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237 | serge | 163 | |
774 | Rus | 164 | mov [slot], eax |
165 | shl eax, 8 |
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166 | add eax, SLOT_BASE |
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167 | mov [slot_base], eax |
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168 | mov edi, eax |
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169 | _clear_ 256 ;clean extended information about process |
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237 | serge | 170 | |
171 | ; write application name |
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774 | Rus | 172 | lea eax, [filename] |
173 | stdcall strrchr, eax, '/' ; now eax points to name without path |
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237 | serge | 174 | |
774 | Rus | 175 | lea esi, [eax+1] |
176 | test eax, eax |
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177 | jnz @F |
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178 | lea esi, [filename] |
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237 | serge | 179 | @@: |
774 | Rus | 180 | mov ecx, 8 ; 8 chars for name |
181 | mov edi, [slot_base] |
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237 | serge | 182 | .copy_process_name_loop: |
774 | Rus | 183 | lodsb |
184 | cmp al, '.' |
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185 | jz .copy_process_name_done |
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186 | test al, al |
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187 | jz .copy_process_name_done |
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188 | stosb |
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189 | loop .copy_process_name_loop |
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237 | serge | 190 | .copy_process_name_done: |
191 | |||
774 | Rus | 192 | mov ebx, cr3 |
193 | mov [save_cr3], ebx |
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269 | serge | 194 | |
774 | Rus | 195 | stdcall create_app_space,[hdr_mem],[file_base],[file_size] |
196 | mov ecx, -30 ; no memory |
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197 | test eax, eax |
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198 | jz .failed |
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237 | serge | 199 | |
774 | Rus | 200 | mov ebx,[slot_base] |
201 | mov [ebx+APPDATA.dir_table],eax |
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202 | mov eax,[hdr_mem] |
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203 | mov [ebx+APPDATA.mem_size],eax |
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237 | serge | 204 | |
357 | serge | 205 | if GREEDY_KERNEL |
206 | else |
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774 | Rus | 207 | mov ecx, [hdr_mem] |
208 | mov edi, [file_size] |
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209 | add edi, 4095 |
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210 | and edi, not 4095 |
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211 | sub ecx, edi |
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212 | jna @F |
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269 | serge | 213 | |
774 | Rus | 214 | xor eax, eax |
465 | serge | 215 | ; add edi, new_app_base |
774 | Rus | 216 | cld |
217 | rep stosb |
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247 | serge | 218 | @@: |
269 | serge | 219 | end if |
220 | |||
221 | ; release only virtual space, not phisical memory |
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222 | |||
774 | Rus | 223 | stdcall free_kernel_space, [file_base] |
224 | lea eax, [hdr_cmdline] |
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225 | lea ebx, [cmdline] |
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226 | lea ecx, [filename] |
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227 | stdcall set_app_params ,[slot],eax,ebx,ecx,[flags] |
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237 | serge | 228 | |
774 | Rus | 229 | mov eax, [save_cr3] |
230 | call set_cr3 |
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237 | serge | 231 | |
774 | Rus | 232 | xor ebx, ebx |
233 | mov [application_table_status],ebx ;unlock application_table_status mutex |
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234 | mov eax,[process_number] ;set result |
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235 | ret |
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237 | serge | 236 | .failed: |
774 | Rus | 237 | mov eax, [save_cr3] |
238 | call set_cr3 |
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269 | serge | 239 | .err: |
247 | serge | 240 | .err_hdr: |
774 | Rus | 241 | stdcall kernel_free,[file_base] |
247 | serge | 242 | .err_file: |
774 | Rus | 243 | xor eax, eax |
244 | mov [application_table_status],eax |
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245 | mov eax, ecx |
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246 | ret |
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237 | serge | 247 | endp |
164 | serge | 248 | |
237 | serge | 249 | align 4 |
250 | test_app_header: |
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774 | Rus | 251 | virtual at eax |
252 | APP_HEADER_00 APP_HEADER_00 |
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253 | end virtual |
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254 | virtual at eax |
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255 | APP_HEADER_01 APP_HEADER_01 |
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256 | end virtual |
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164 | serge | 257 | |
774 | Rus | 258 | cmp dword [eax], 'MENU' |
259 | jne .fail |
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260 | cmp word [eax+4],'ET' |
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261 | jne .fail |
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164 | serge | 262 | |
774 | Rus | 263 | cmp [eax+6], word '00' |
264 | jne .check_01_header |
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164 | serge | 265 | |
774 | Rus | 266 | mov ecx,[APP_HEADER_00.start] |
267 | mov [ebx+0x08], ecx ;app_eip |
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268 | mov edx,[APP_HEADER_00.mem_size] |
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269 | mov [ebx+0x10], edx ;app_mem |
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270 | shr edx,1 |
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271 | sub edx,0x10 |
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272 | mov [ebx+0x0C], edx ;app_esp |
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273 | mov ecx,[APP_HEADER_00.i_param] |
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274 | mov [ebx], ecx ;app_cmdline |
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275 | mov [ebx+4], dword 0 ;app_path |
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276 | mov edx, [APP_HEADER_00.i_end] |
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277 | mov [ebx+0x14], edx |
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278 | ret |
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164 | serge | 279 | |
237 | serge | 280 | .check_01_header: |
164 | serge | 281 | |
774 | Rus | 282 | cmp [eax+6],word '01' |
283 | jne .fail |
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237 | serge | 284 | |
774 | Rus | 285 | mov ecx,[APP_HEADER_01.start] |
286 | mov [ebx+0x08], ecx ;app_eip |
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287 | mov edx,[APP_HEADER_01.mem_size] |
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381 | serge | 288 | |
289 | ; \begin{diamond}[20.08.2006] |
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290 | ; sanity check (functions 19,58 load app_i_end bytes and that must |
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291 | ; fit in allocated memory to prevent kernel faults) |
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774 | Rus | 292 | cmp edx,[APP_HEADER_01.i_end] |
293 | jb .fail |
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381 | serge | 294 | ; \end{diamond}[20.08.2006] |
295 | |||
774 | Rus | 296 | mov [ebx+0x10], edx ;app_mem |
297 | mov ecx,[APP_HEADER_01.stack_top] |
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298 | mov [ebx+0x0C], ecx ;app_esp |
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299 | mov edx,[APP_HEADER_01.i_param] |
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300 | mov [ebx], edx ;app_cmdline |
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301 | mov ecx,[APP_HEADER_01.i_icon] |
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302 | mov [ebx+4], ecx ;app_path |
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303 | mov edx, [APP_HEADER_01.i_end] |
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304 | mov [ebx+0x14], edx |
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305 | ret |
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237 | serge | 306 | .fail: |
774 | Rus | 307 | xor eax, eax |
308 | ret |
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164 | serge | 309 | |
310 | align 4 |
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311 | proc get_new_process_place |
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312 | ;input: |
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313 | ; none |
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314 | ;result: |
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315 | ; eax=[new_process_place]<>0 - ok |
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316 | ; 0 - failed. |
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317 | ;This function find least empty slot. |
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318 | ;It doesn't increase [TASK_COUNT]! |
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774 | Rus | 319 | mov eax,CURRENT_TASK |
320 | mov ebx,[TASK_COUNT] |
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321 | inc ebx |
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322 | shl ebx,5 |
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323 | add ebx,eax ;ebx - address of process information for (last+1) slot |
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164 | serge | 324 | .newprocessplace: |
325 | ;eax = address of process information for current slot |
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774 | Rus | 326 | cmp eax,ebx |
327 | jz .endnewprocessplace ;empty slot after high boundary |
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328 | add eax,0x20 |
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329 | cmp word [eax+0xa],9 ;check process state, 9 means that process slot is empty |
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330 | jnz .newprocessplace |
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164 | serge | 331 | .endnewprocessplace: |
774 | Rus | 332 | mov ebx,eax |
333 | sub eax,CURRENT_TASK |
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334 | shr eax,5 ;calculate slot index |
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335 | cmp eax,256 |
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336 | jge .failed ;it should be <256 |
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337 | mov word [ebx+0xa],9 ;set process state to 9 (for slot after hight boundary) |
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338 | ret |
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164 | serge | 339 | .failed: |
774 | Rus | 340 | xor eax,eax |
341 | ret |
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164 | serge | 342 | endp |
343 | |||
344 | align 4 |
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269 | serge | 345 | proc create_app_space stdcall, app_size:dword,img_base:dword,img_size:dword |
774 | Rus | 346 | locals |
347 | app_pages dd ? |
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348 | img_pages dd ? |
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349 | dir_addr dd ? |
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350 | app_tabs dd ? |
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351 | endl |
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164 | serge | 352 | |
774 | Rus | 353 | mov ebx, pg_data.pg_mutex |
354 | call wait_mutex ;ebx |
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164 | serge | 355 | |
774 | Rus | 356 | xor eax, eax |
357 | mov [dir_addr], eax |
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164 | serge | 358 | |
774 | Rus | 359 | mov eax, [app_size] |
360 | add eax, 4095 |
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361 | and eax, NOT(4095) |
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362 | mov [app_size], eax |
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363 | mov ebx, eax |
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364 | shr eax, 12 |
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365 | mov [app_pages], eax |
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170 | serge | 366 | |
774 | Rus | 367 | add ebx, 0x3FFFFF |
368 | and ebx, NOT(0x3FFFFF) |
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369 | shr ebx, 22 |
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370 | mov [app_tabs], ebx |
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164 | serge | 371 | |
774 | Rus | 372 | mov ecx, [img_size] |
373 | add ecx, 4095 |
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374 | and ecx, NOT(4095) |
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164 | serge | 375 | |
774 | Rus | 376 | mov [img_size], ecx |
377 | shr ecx, 12 |
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378 | mov [img_pages], ecx |
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164 | serge | 379 | |
170 | serge | 380 | if GREEDY_KERNEL |
774 | Rus | 381 | lea eax, [ecx+ebx+2] ;only image size |
170 | serge | 382 | else |
774 | Rus | 383 | lea eax, [eax+ebx+2] ;all requested memory |
170 | serge | 384 | end if |
774 | Rus | 385 | cmp eax, [pg_data.pages_free] |
386 | ja .fail |
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170 | serge | 387 | |
774 | Rus | 388 | call alloc_page |
389 | test eax, eax |
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390 | jz .fail |
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391 | mov [dir_addr], eax |
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392 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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164 | serge | 393 | |
774 | Rus | 394 | mov edi, [tmp_task_pdir] |
395 | mov ecx, (OS_BASE shr 20)/4 |
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396 | xor eax, eax |
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397 | cld |
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398 | rep stosd |
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465 | serge | 399 | |
774 | Rus | 400 | mov ecx, (OS_BASE shr 20)/4 |
401 | mov esi, sys_pgdir+(OS_BASE shr 20) |
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402 | rep movsd |
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164 | serge | 403 | |
774 | Rus | 404 | mov eax, [dir_addr] |
405 | or eax, PG_SW |
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406 | mov [edi-4096+(page_tabs shr 20)], eax |
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378 | serge | 407 | |
774 | Rus | 408 | and eax, -4096 |
409 | call set_cr3 |
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164 | serge | 410 | |
774 | Rus | 411 | mov edx, [app_tabs] |
412 | mov edi, new_app_base |
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164 | serge | 413 | @@: |
774 | Rus | 414 | call alloc_page |
415 | test eax, eax |
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416 | jz .fail |
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164 | serge | 417 | |
774 | Rus | 418 | stdcall map_page_table, edi, eax |
419 | add edi, 0x00400000 |
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420 | dec edx |
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421 | jnz @B |
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164 | serge | 422 | |
774 | Rus | 423 | mov edi, new_app_base |
424 | shr edi, 10 |
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425 | add edi, page_tabs |
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269 | serge | 426 | |
774 | Rus | 427 | mov ecx, [app_tabs] |
428 | shl ecx, 10 |
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429 | xor eax, eax |
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430 | rep stosd |
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164 | serge | 431 | |
774 | Rus | 432 | mov ecx, [img_pages] |
433 | mov ebx, PG_UW |
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434 | mov edx, new_app_base |
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435 | mov esi, [img_base] |
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436 | mov edi, new_app_base |
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437 | shr esi, 10 |
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438 | shr edi, 10 |
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439 | add esi, page_tabs |
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440 | add edi, page_tabs |
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269 | serge | 441 | .remap: |
774 | Rus | 442 | lodsd |
443 | or eax, ebx ; force user level r/w access |
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444 | stosd |
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445 | add edx, 0x1000 |
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446 | dec [app_pages] |
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447 | dec ecx |
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448 | jnz .remap |
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269 | serge | 449 | |
774 | Rus | 450 | mov ecx, [app_pages] |
451 | test ecx, ecx |
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452 | jz .done |
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269 | serge | 453 | |
454 | if GREEDY_KERNEL |
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774 | Rus | 455 | mov eax, 0x02 |
269 | serge | 456 | .reserve: |
774 | Rus | 457 | stosd |
458 | invlpg [edx] |
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459 | add edx, 4096 |
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460 | dec ecx |
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461 | jnz .reserve |
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269 | serge | 462 | else |
463 | |||
164 | serge | 464 | .alloc: |
774 | Rus | 465 | call alloc_page |
466 | test eax, eax |
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467 | jz .fail |
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164 | serge | 468 | |
774 | Rus | 469 | stdcall map_page,edx,eax,dword PG_UW |
470 | add edx, 0x1000 |
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471 | dec [app_pages] |
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472 | jnz .alloc |
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269 | serge | 473 | end if |
164 | serge | 474 | |
269 | serge | 475 | .done: |
774 | Rus | 476 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
164 | serge | 477 | |
774 | Rus | 478 | dec [pg_data.pg_mutex] |
479 | mov eax, [dir_addr] |
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480 | ret |
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164 | serge | 481 | .fail: |
774 | Rus | 482 | dec [pg_data.pg_mutex] |
483 | cmp [dir_addr], 0 |
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484 | je @f |
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485 | stdcall destroy_app_space, [dir_addr] |
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164 | serge | 486 | @@: |
774 | Rus | 487 | xor eax, eax |
488 | ret |
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164 | serge | 489 | endp |
490 | |||
491 | align 4 |
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492 | set_cr3: |
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465 | serge | 493 | |
774 | Rus | 494 | mov ebx, [current_slot] |
495 | mov [ebx+APPDATA.dir_table], eax |
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496 | mov cr3, eax |
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497 | ret |
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164 | serge | 498 | |
499 | align 4 |
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500 | proc destroy_page_table stdcall, pg_tab:dword |
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501 | |||
774 | Rus | 502 | push esi |
164 | serge | 503 | |
774 | Rus | 504 | mov esi, [pg_tab] |
505 | mov ecx, 1024 |
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164 | serge | 506 | .free: |
774 | Rus | 507 | mov eax, [esi] |
508 | test eax, 1 |
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509 | jz .next |
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510 | call free_page |
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164 | serge | 511 | .next: |
774 | Rus | 512 | add esi, 4 |
513 | dec ecx |
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514 | jnz .free |
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515 | pop esi |
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516 | ret |
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164 | serge | 517 | endp |
518 | |||
519 | align 4 |
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520 | proc destroy_app_space stdcall, pg_dir:dword |
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521 | |||
774 | Rus | 522 | mov ebx, pg_data.pg_mutex |
523 | call wait_mutex ;ebx |
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164 | serge | 524 | |
774 | Rus | 525 | xor edx,edx |
526 | mov eax,0x2 |
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527 | mov ebx, [pg_dir] |
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164 | serge | 528 | .loop: |
529 | ;eax = current slot of process |
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774 | Rus | 530 | mov ecx,eax |
531 | shl ecx,5 |
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532 | cmp byte [CURRENT_TASK+ecx+0xa],9 ;if process running? |
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533 | jz @f ;skip empty slots |
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534 | shl ecx,3 |
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535 | cmp [SLOT_BASE+ecx+0xB8],ebx ;compare page directory addresses |
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536 | jnz @f |
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537 | inc edx ;thread found |
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164 | serge | 538 | @@: |
774 | Rus | 539 | inc eax |
540 | cmp eax,[TASK_COUNT] ;exit loop if we look through all processes |
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541 | jle .loop |
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164 | serge | 542 | |
543 | ;edx = number of threads |
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544 | ;our process is zombi so it isn't counted |
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774 | Rus | 545 | cmp edx,1 |
546 | jg .exit |
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164 | serge | 547 | ;if there isn't threads then clear memory. |
548 | |||
774 | Rus | 549 | mov eax, [pg_dir] |
550 | and eax, not 0xFFF |
||
551 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
||
552 | mov esi, [tmp_task_pdir] |
||
553 | mov edi, (OS_BASE shr 20)/4 |
||
164 | serge | 554 | .destroy: |
774 | Rus | 555 | mov eax, [esi] |
556 | test eax, 1 |
||
557 | jz .next |
||
558 | and eax, not 0xFFF |
||
559 | stdcall map_page,[tmp_task_ptab],eax,dword PG_SW |
||
560 | stdcall destroy_page_table, [tmp_task_ptab] |
||
561 | mov eax, [esi] |
||
562 | call free_page |
||
164 | serge | 563 | .next: |
774 | Rus | 564 | add esi, 4 |
565 | dec edi |
||
566 | jnz .destroy |
||
164 | serge | 567 | |
774 | Rus | 568 | mov eax, [pg_dir] |
569 | call free_page |
||
164 | serge | 570 | .exit: |
774 | Rus | 571 | stdcall map_page,[tmp_task_ptab],dword 0,dword PG_UNMAP |
572 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
||
573 | dec [pg_data.pg_mutex] |
||
574 | ret |
||
164 | serge | 575 | endp |
576 | |||
520 | serge | 577 | align 4 |
578 | get_pid: |
||
774 | Rus | 579 | ;mov eax, [TASK_DATA] ; I think it's the bug. (Rus) |
580 | mov eax, [TASK_BASE] |
||
581 | mov eax, [eax+4] |
||
582 | ret |
||
520 | serge | 583 | |
164 | serge | 584 | pid_to_slot: |
585 | ;Input: |
||
586 | ; eax - pid of process |
||
587 | ;Output: |
||
588 | ; eax - slot of process or 0 if process don't exists |
||
589 | ;Search process by PID. |
||
590 | push ebx |
||
591 | push ecx |
||
592 | mov ebx,[TASK_COUNT] |
||
593 | shl ebx,5 |
||
594 | mov ecx,2*32 |
||
595 | |||
596 | .loop: |
||
597 | ;ecx=offset of current process info entry |
||
598 | ;ebx=maximum permitted offset |
||
599 | cmp byte [CURRENT_TASK+ecx+0xa],9 |
||
774 | Rus | 600 | jz .endloop ;skip empty slots |
164 | serge | 601 | cmp [CURRENT_TASK+ecx+0x4],eax ;check PID |
774 | Rus | 602 | jz .pid_found |
164 | serge | 603 | .endloop: |
604 | add ecx,32 |
||
605 | cmp ecx,ebx |
||
606 | jle .loop |
||
607 | |||
608 | pop ecx |
||
609 | pop ebx |
||
610 | xor eax,eax |
||
611 | ret |
||
612 | |||
613 | .pid_found: |
||
614 | shr ecx,5 |
||
774 | Rus | 615 | mov eax,ecx ;convert offset to index of slot |
164 | serge | 616 | pop ecx |
617 | pop ebx |
||
618 | ret |
||
619 | |||
620 | check_region: |
||
621 | ;input: |
||
622 | ; ebx - start of buffer |
||
623 | ; ecx - size of buffer |
||
624 | ;result: |
||
625 | ; eax = 1 region lays in app memory |
||
626 | ; eax = 0 region don't lays in app memory |
||
627 | mov eax,[CURRENT_TASK] |
||
628 | jmp check_process_region |
||
629 | ;----------------------------------------------------------------------------- |
||
630 | check_process_region: |
||
631 | ;input: |
||
632 | ; eax - slot |
||
633 | ; ebx - start of buffer |
||
634 | ; ecx - size of buffer |
||
635 | ;result: |
||
636 | ; eax = 1 region lays in app memory |
||
637 | ; eax = 0 region don't lays in app memory |
||
638 | |||
639 | test ecx,ecx |
||
640 | jle .ok |
||
641 | shl eax,5 |
||
642 | cmp word [CURRENT_TASK+eax+0xa],0 |
||
643 | jnz .failed |
||
644 | shl eax,3 |
||
380 | serge | 645 | mov eax,[SLOT_BASE+eax+0xb8] |
164 | serge | 646 | test eax,eax |
647 | jz .failed |
||
648 | |||
649 | mov eax,1 |
||
650 | ret |
||
651 | |||
652 | |||
653 | ; call MEM_Get_Linear_Address |
||
654 | ; push ebx |
||
655 | ; push ecx |
||
656 | ; push edx |
||
657 | ; mov edx,ebx |
||
658 | ; and edx,not (4096-1) |
||
659 | ; sub ebx,edx |
||
660 | ; add ecx,ebx |
||
661 | ; mov ebx,edx |
||
662 | ; add ecx,(4096-1) |
||
663 | ; and ecx,not (4096-1) |
||
664 | ;.loop: |
||
665 | ;;eax - linear address of page directory |
||
666 | ;;ebx - current page |
||
667 | ;;ecx - current size |
||
668 | ; mov edx,ebx |
||
669 | ; shr edx,22 |
||
670 | ; mov edx,[eax+4*edx] |
||
671 | ; and edx,not (4096-1) |
||
672 | ; test edx,edx |
||
673 | ; jz .failed1 |
||
674 | ; push eax |
||
675 | ; mov eax,edx |
||
676 | ; call MEM_Get_Linear_Address |
||
677 | ; mov edx,ebx |
||
678 | ; shr edx,12 |
||
679 | ; and edx,(1024-1) |
||
680 | ; mov eax,[eax+4*edx] |
||
681 | ; and eax,not (4096-1) |
||
682 | ; test eax,eax |
||
683 | ; pop eax |
||
684 | ; jz .failed1 |
||
685 | ; add ebx,4096 |
||
686 | ; sub ecx,4096 |
||
687 | ; jg .loop |
||
688 | ; pop edx |
||
689 | ; pop ecx |
||
690 | ; pop ebx |
||
691 | .ok: |
||
692 | mov eax,1 |
||
693 | ret |
||
694 | ; |
||
695 | ;.failed1: |
||
696 | ; pop edx |
||
697 | ; pop ecx |
||
698 | ; pop ebx |
||
699 | .failed: |
||
700 | xor eax,eax |
||
701 | ret |
||
702 | |||
703 | align 4 |
||
704 | proc read_process_memory |
||
705 | ;Input: |
||
706 | ; eax - process slot |
||
707 | ; ebx - buffer address |
||
708 | ; ecx - buffer size |
||
709 | ; edx - start address in other process |
||
710 | ;Output: |
||
711 | ; eax - number of bytes read. |
||
774 | Rus | 712 | locals |
713 | slot dd ? |
||
714 | buff dd ? |
||
715 | r_count dd ? |
||
716 | offset dd ? |
||
717 | tmp_r_cnt dd ? |
||
718 | endl |
||
164 | serge | 719 | |
774 | Rus | 720 | mov [slot], eax |
721 | mov [buff], ebx |
||
722 | and [r_count], 0 |
||
723 | mov [tmp_r_cnt], ecx |
||
724 | mov [offset], edx |
||
164 | serge | 725 | |
774 | Rus | 726 | pushad |
164 | serge | 727 | .read_mem: |
774 | Rus | 728 | mov edx, [offset] |
729 | mov ebx, [tmp_r_cnt] |
||
164 | serge | 730 | |
774 | Rus | 731 | mov ecx, 0x400000 |
732 | and edx, 0x3FFFFF |
||
733 | sub ecx, edx |
||
734 | cmp ecx, ebx |
||
735 | jbe @f |
||
736 | mov ecx, ebx |
||
164 | serge | 737 | @@: |
774 | Rus | 738 | cmp ecx, 0x8000 |
739 | jna @F |
||
740 | mov ecx, 0x8000 |
||
164 | serge | 741 | @@: |
774 | Rus | 742 | mov eax, [slot] |
743 | shl eax,8 |
||
744 | mov ebx, [offset] |
||
465 | serge | 745 | ; add ebx, new_app_base |
774 | Rus | 746 | push ecx |
747 | stdcall map_memEx, [proc_mem_map],\ |
||
748 | [SLOT_BASE+eax+0xB8],\ |
||
749 | ebx, ecx |
||
750 | pop ecx |
||
164 | serge | 751 | |
774 | Rus | 752 | mov esi, [offset] |
753 | and esi, 0xfff |
||
754 | add esi, [proc_mem_map] |
||
755 | mov edi, [buff] |
||
756 | mov edx, ecx |
||
757 | rep movsb |
||
758 | add [r_count], edx |
||
164 | serge | 759 | |
774 | Rus | 760 | add [offset], edx |
761 | sub [tmp_r_cnt], edx |
||
762 | jnz .read_mem |
||
164 | serge | 763 | |
774 | Rus | 764 | popad |
765 | mov eax, [r_count] |
||
766 | ret |
||
164 | serge | 767 | endp |
768 | |||
769 | align 4 |
||
770 | proc write_process_memory |
||
771 | ;Input: |
||
772 | ; eax - process slot |
||
773 | ; ebx - buffer address |
||
774 | ; ecx - buffer size |
||
775 | ; edx - start address in other process |
||
776 | ;Output: |
||
777 | ; eax - number of bytes written |
||
778 | |||
774 | Rus | 779 | locals |
780 | slot dd ? |
||
781 | buff dd ? |
||
782 | w_count dd ? |
||
783 | offset dd ? |
||
784 | tmp_w_cnt dd ? |
||
785 | endl |
||
164 | serge | 786 | |
774 | Rus | 787 | mov [slot], eax |
788 | mov [buff], ebx |
||
789 | and [w_count], 0 |
||
790 | mov [tmp_w_cnt], ecx |
||
791 | mov [offset], edx |
||
164 | serge | 792 | |
774 | Rus | 793 | pushad |
164 | serge | 794 | .read_mem: |
774 | Rus | 795 | mov edx, [offset] |
796 | mov ebx, [tmp_w_cnt] |
||
164 | serge | 797 | |
774 | Rus | 798 | mov ecx, 0x400000 |
799 | and edx, 0x3FFFFF |
||
800 | sub ecx, edx |
||
801 | cmp ecx, ebx |
||
802 | jbe @f |
||
803 | mov ecx, ebx |
||
164 | serge | 804 | @@: |
774 | Rus | 805 | cmp ecx, 0x8000 |
806 | jna @F |
||
807 | mov ecx, 0x8000 |
||
164 | serge | 808 | @@: |
774 | Rus | 809 | mov eax, [slot] |
810 | shl eax,8 |
||
811 | mov ebx, [offset] |
||
465 | serge | 812 | ; add ebx, new_app_base |
774 | Rus | 813 | push ecx |
814 | stdcall map_memEx, [proc_mem_map],\ |
||
815 | [SLOT_BASE+eax+0xB8],\ |
||
816 | ebx, ecx |
||
817 | pop ecx |
||
164 | serge | 818 | |
774 | Rus | 819 | mov edi, [offset] |
820 | and edi, 0xfff |
||
821 | add edi, [proc_mem_map] |
||
822 | mov esi, [buff] |
||
823 | mov edx, ecx |
||
824 | rep movsb |
||
164 | serge | 825 | |
774 | Rus | 826 | add [w_count], edx |
827 | add [offset], edx |
||
828 | sub [tmp_w_cnt], edx |
||
829 | jnz .read_mem |
||
164 | serge | 830 | |
774 | Rus | 831 | popad |
832 | mov eax, [w_count] |
||
833 | ret |
||
164 | serge | 834 | endp |
835 | |||
836 | align 4 |
||
837 | proc new_sys_threads |
||
774 | Rus | 838 | locals |
839 | slot dd ? |
||
840 | app_cmdline dd ? ;0x00 |
||
841 | app_path dd ? ;0x04 |
||
842 | app_eip dd ? ;0x08 |
||
843 | app_esp dd ? ;0x0C |
||
844 | app_mem dd ? ;0x10 |
||
845 | endl |
||
164 | serge | 846 | |
774 | Rus | 847 | cmp eax,1 |
848 | jne .failed ;other subfunctions |
||
164 | serge | 849 | |
774 | Rus | 850 | xor eax,eax |
851 | mov [app_cmdline], eax |
||
852 | mov [app_path], eax |
||
853 | mov [app_eip], ebx |
||
854 | mov [app_esp], ecx |
||
164 | serge | 855 | |
774 | Rus | 856 | ;mov esi,new_process_loading |
857 | ;call sys_msg_board_str |
||
858 | DEBUGF 1,"%s",new_process_loading |
||
164 | serge | 859 | .wait_lock: |
774 | Rus | 860 | cmp [application_table_status],0 |
861 | je .get_lock |
||
862 | call change_task |
||
863 | jmp .wait_lock |
||
164 | serge | 864 | |
865 | .get_lock: |
||
774 | Rus | 866 | mov eax, 1 |
867 | xchg eax, [application_table_status] |
||
868 | cmp eax, 0 |
||
869 | jne .wait_lock |
||
164 | serge | 870 | |
774 | Rus | 871 | call set_application_table_status |
164 | serge | 872 | |
774 | Rus | 873 | call get_new_process_place |
874 | test eax, eax |
||
875 | jz .failed |
||
164 | serge | 876 | |
774 | Rus | 877 | mov [slot], eax |
164 | serge | 878 | |
774 | Rus | 879 | mov esi,[current_slot] |
880 | mov ebx,esi ;ebx=esi - pointer to extended information about current thread |
||
164 | serge | 881 | |
774 | Rus | 882 | mov edi, eax |
883 | shl edi,8 |
||
884 | add edi,SLOT_BASE |
||
885 | mov edx,edi ;edx=edi - pointer to extended infomation about new thread |
||
886 | mov ecx,256/4 |
||
887 | xor eax, eax |
||
888 | cld |
||
889 | rep stosd ;clean extended information about new thread |
||
890 | mov esi,ebx |
||
891 | mov edi,edx |
||
892 | mov ecx,11 |
||
893 | rep movsb ;copy process name |
||
164 | serge | 894 | |
774 | Rus | 895 | mov eax,[ebx+APPDATA.heap_base] |
896 | mov [edx+APPDATA.heap_base], eax |
||
164 | serge | 897 | |
774 | Rus | 898 | mov ecx,[ebx+APPDATA.heap_top] |
899 | mov [edx+APPDATA.heap_top], ecx |
||
237 | serge | 900 | |
774 | Rus | 901 | mov eax,[ebx+APPDATA.mem_size] |
902 | mov [edx+APPDATA.mem_size], eax |
||
237 | serge | 903 | |
774 | Rus | 904 | mov ecx,[ebx+APPDATA.dir_table] |
905 | mov [edx+APPDATA.dir_table],ecx ;copy page directory |
||
237 | serge | 906 | |
774 | Rus | 907 | lea eax, [app_cmdline] |
908 | stdcall set_app_params ,[slot],eax,dword 0,\ |
||
909 | dword 0,dword 0 |
||
237 | serge | 910 | |
774 | Rus | 911 | ;mov esi,new_process_running |
912 | ;call sys_msg_board_str ;output information about succefull startup |
||
913 | DEBUGF 1,"%s",new_process_running |
||
164 | serge | 914 | |
774 | Rus | 915 | mov [application_table_status],0 ;unlock application_table_status mutex |
916 | mov eax,[process_number] ;set result |
||
917 | ret |
||
164 | serge | 918 | .failed: |
774 | Rus | 919 | mov [application_table_status],0 |
920 | mov eax,-1 |
||
921 | ret |
||
164 | serge | 922 | endp |
923 | |||
276 | serge | 924 | ; param |
925 | ; ebx=mutex |
||
926 | |||
164 | serge | 927 | align 4 |
276 | serge | 928 | wait_mutex: |
774 | Rus | 929 | push eax |
930 | push ebx |
||
321 | diamond | 931 | .do_wait: |
774 | Rus | 932 | cmp dword [ebx],0 |
933 | je .get_lock |
||
934 | call change_task |
||
935 | jmp .do_wait |
||
164 | serge | 936 | .get_lock: |
774 | Rus | 937 | mov eax, 1 |
938 | xchg eax, [ebx] |
||
939 | test eax, eax |
||
940 | jnz .do_wait |
||
941 | pop ebx |
||
942 | pop eax |
||
943 | ret |
||
164 | serge | 944 | |
774 | Rus | 945 | EFL_IF equ 0x0200 |
465 | serge | 946 | EFL_IOPL1 equ 0x1000 |
947 | EFL_IOPL2 equ 0x2000 |
||
948 | EFL_IOPL3 equ 0x3000 |
||
949 | |||
950 | |||
237 | serge | 951 | align 4 |
952 | proc set_app_params stdcall,slot:dword, params:dword,\ |
||
774 | Rus | 953 | cmd_line:dword, app_path:dword, flags:dword |
164 | serge | 954 | |
774 | Rus | 955 | locals |
956 | pl0_stack dd ? |
||
957 | endl |
||
237 | serge | 958 | |
774 | Rus | 959 | stdcall kernel_alloc, RING0_STACK_SIZE+512 |
960 | mov [pl0_stack], eax |
||
357 | serge | 961 | |
774 | Rus | 962 | lea edi, [eax+RING0_STACK_SIZE] |
357 | serge | 963 | |
774 | Rus | 964 | mov eax, [slot] |
965 | mov ebx, eax |
||
357 | serge | 966 | |
774 | Rus | 967 | shl eax, 8 |
968 | mov [eax+SLOT_BASE+APPDATA.fpu_state], edi |
||
969 | mov [eax+SLOT_BASE+APPDATA.fpu_handler], 0 |
||
970 | mov [eax+SLOT_BASE+APPDATA.sse_handler], 0 |
||
357 | serge | 971 | |
465 | serge | 972 | ;set default io permission map |
774 | Rus | 973 | mov [eax+SLOT_BASE+APPDATA.io_map],\ |
974 | (tss._io_map_0-OS_BASE+PG_MAP) |
||
975 | mov [eax+SLOT_BASE+APPDATA.io_map+4],\ |
||
976 | (tss._io_map_1-OS_BASE+PG_MAP) |
||
465 | serge | 977 | |
774 | Rus | 978 | mov esi, fpu_data |
979 | mov ecx, 512/4 |
||
980 | rep movsd |
||
237 | serge | 981 | |
774 | Rus | 982 | cmp ebx,[TASK_COUNT] |
983 | jle .noinc |
||
984 | inc dword [TASK_COUNT] ;update number of processes |
||
237 | serge | 985 | .noinc: |
774 | Rus | 986 | shl ebx,8 |
987 | lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET] |
||
988 | mov [SLOT_BASE+APPDATA.fd_ev+ebx],edx |
||
989 | mov [SLOT_BASE+APPDATA.bk_ev+ebx],edx |
||
354 | serge | 990 | |
774 | Rus | 991 | add edx, APP_OBJ_OFFSET-APP_EV_OFFSET |
992 | mov [SLOT_BASE+APPDATA.fd_obj+ebx],edx |
||
993 | mov [SLOT_BASE+APPDATA.bk_obj+ebx],edx |
||
237 | serge | 994 | |
774 | Rus | 995 | mov ecx, [def_cursor] |
996 | mov [SLOT_BASE+APPDATA.cursor+ebx],ecx |
||
997 | mov eax, [pl0_stack] |
||
998 | mov [SLOT_BASE+APPDATA.pl0_stack+ebx],eax |
||
999 | add eax, RING0_STACK_SIZE |
||
1000 | mov [SLOT_BASE+APPDATA.saved_esp0+ebx], eax |
||
281 | serge | 1001 | |
774 | Rus | 1002 | push ebx |
1003 | stdcall kernel_alloc, 0x1000 |
||
1004 | pop ebx |
||
1005 | mov esi,[current_slot] |
||
1006 | mov esi,[esi+APPDATA.cur_dir] |
||
1007 | mov ecx,0x1000/4 |
||
1008 | mov edi,eax |
||
1009 | mov [ebx+SLOT_BASE+APPDATA.cur_dir],eax |
||
1010 | rep movsd |
||
521 | diamond | 1011 | |
774 | Rus | 1012 | shr ebx,3 |
1013 | mov eax, new_app_base |
||
1014 | mov dword [CURRENT_TASK+ebx+0x10],eax |
||
237 | serge | 1015 | |
1016 | .add_command_line: |
||
774 | Rus | 1017 | mov edx,[params] |
1018 | mov edx,[edx] ;app_cmdline |
||
1019 | test edx,edx |
||
1020 | jz @f ;application doesn't need parameters |
||
281 | serge | 1021 | |
774 | Rus | 1022 | mov eax, edx |
1023 | add eax, 256 |
||
1024 | jc @f |
||
281 | serge | 1025 | |
774 | Rus | 1026 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
1027 | ja @f |
||
281 | serge | 1028 | |
774 | Rus | 1029 | mov byte [edx], 0 ;force empty string if no cmdline given |
1030 | mov eax, [cmd_line] |
||
1031 | test eax, eax |
||
1032 | jz @f |
||
1033 | stdcall strncpy, edx, eax, 256 |
||
237 | serge | 1034 | @@: |
774 | Rus | 1035 | mov edx,[params] |
1036 | mov edx, [edx+4] ;app_path |
||
1037 | test edx,edx |
||
1038 | jz @F ;application don't need path of file |
||
1039 | mov eax, edx |
||
1040 | add eax, 1024 |
||
1041 | jc @f |
||
1042 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
||
1043 | ja @f |
||
1044 | stdcall strncpy, edx, [app_path], 1024 |
||
237 | serge | 1045 | @@: |
774 | Rus | 1046 | mov ebx,[slot] |
1047 | mov eax,ebx |
||
1048 | shl ebx,5 |
||
1049 | lea ecx,[draw_data+ebx] ;ecx - pointer to draw data |
||
465 | serge | 1050 | |
237 | serge | 1051 | ; set window state to 'normal' (non-minimized/maximized/rolled-up) state |
774 | Rus | 1052 | mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL |
1053 | mov [ebx+window_data+WDATA.fl_redraw], 1 |
||
1054 | add ebx,CURRENT_TASK ;ebx - pointer to information about process |
||
1055 | mov [ebx+TASKDATA.wnd_number],al;set window number on screen = process slot |
||
237 | serge | 1056 | |
774 | Rus | 1057 | mov [ebx+TASKDATA.event_mask],dword 1+2+4 ;set default event flags (see 40 function) |
237 | serge | 1058 | |
774 | Rus | 1059 | inc dword [process_number] |
1060 | mov eax,[process_number] |
||
1061 | mov [ebx+4],eax ;set PID |
||
237 | serge | 1062 | |
1063 | ;set draw data to full screen |
||
1064 | |||
774 | Rus | 1065 | mov [ecx+0],dword 0 |
1066 | mov [ecx+4],dword 0 |
||
1067 | mov eax,[Screen_Max_X] |
||
1068 | mov [ecx+8],eax |
||
1069 | mov eax,[Screen_Max_Y] |
||
1070 | mov [ecx+12],eax |
||
237 | serge | 1071 | |
774 | Rus | 1072 | mov ebx, [pl0_stack] |
1073 | mov esi,[params] |
||
1074 | lea ecx, [ebx+REG_EIP] |
||
1075 | xor eax, eax |
||
237 | serge | 1076 | |
774 | Rus | 1077 | mov [ebx+REG_RET], dword irq0.return |
1078 | mov [ebx+REG_EDI], eax |
||
1079 | mov [ebx+REG_ESI], eax |
||
1080 | mov [ebx+REG_EBP], eax |
||
1081 | mov [ebx+REG_ESP], ecx ;ebx+REG_EIP |
||
1082 | mov [ebx+REG_EBX], eax |
||
1083 | mov [ebx+REG_EDX], eax |
||
1084 | mov [ebx+REG_ECX], eax |
||
1085 | mov [ebx+REG_EAX], eax |
||
237 | serge | 1086 | |
774 | Rus | 1087 | mov eax, [esi+0x08] ;app_eip |
1088 | mov [ebx+REG_EIP], eax ;app_entry |
||
1089 | mov [ebx+REG_CS], dword app_code |
||
1090 | mov [ebx+REG_EFLAGS], dword EFL_IOPL1+EFL_IF |
||
465 | serge | 1091 | |
774 | Rus | 1092 | mov eax, [esi+0x0C] ;app_esp |
1093 | mov [ebx+REG_APP_ESP], eax ;app_stack |
||
1094 | mov [ebx+REG_SS], dword app_data |
||
237 | serge | 1095 | |
774 | Rus | 1096 | lea ecx, [ebx+REG_RET] |
1097 | mov ebx, [slot] |
||
1098 | shl ebx, 5 |
||
1099 | mov [ebx*8+SLOT_BASE+APPDATA.saved_esp], ecx |
||
237 | serge | 1100 | |
774 | Rus | 1101 | xor ecx, ecx ; process state - running |
237 | serge | 1102 | ; set if debuggee |
774 | Rus | 1103 | test byte [flags], 1 |
1104 | jz .no_debug |
||
1105 | inc ecx ; process state - suspended |
||
1106 | mov eax,[CURRENT_TASK] |
||
1107 | mov [SLOT_BASE+ebx*8+APPDATA.debugger_slot],eax |
||
237 | serge | 1108 | .no_debug: |
774 | Rus | 1109 | mov [CURRENT_TASK+ebx+TASKDATA.state], cl |
1110 | ;mov esi,new_process_running |
||
1111 | ;call sys_msg_board_str ;output information about succefull startup |
||
1112 | DEBUGF 1,"%s",new_process_running |
||
1113 | ret |
||
237 | serge | 1114 | endp |
1115 | |||
164 | serge | 1116 | include "debug.inc"256 |