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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: 593 $ |
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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35 | { .app_cmdline ;0x00 |
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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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40 | } |
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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: |
50 | xor ebx, ebx |
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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 | |||
237 | serge | 64 | locals |
363 | serge | 65 | cmdline rd 64 ;256/4 |
66 | filename rd 256 ;1024/4 |
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67 | flags dd ? |
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68 | |||
237 | serge | 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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363 | serge | 74 | ;app header data |
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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237 | serge | 81 | endl |
164 | serge | 82 | |
363 | serge | 83 | pushad |
84 | |||
85 | mov [flags], edx |
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86 | |||
87 | ; [ebp] pointer to filename |
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88 | |||
521 | diamond | 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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93 | @@: |
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94 | cmp edi, ecx |
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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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104 | @@: |
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105 | cmp edi, ecx |
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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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112 | .bigfilename: |
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113 | popad |
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114 | mov eax, -ERROR_FILE_NOT_FOUND |
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115 | ret |
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116 | .namecopied: |
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363 | serge | 117 | |
519 | serge | 118 | mov [cmdline], ebx |
119 | test ebx, ebx |
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120 | jz @F |
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121 | |||
363 | serge | 122 | lea eax, [cmdline] |
123 | mov dword [eax+252], 0 |
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519 | serge | 124 | stdcall strncpy, eax, ebx, 255 |
125 | @@: |
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363 | serge | 126 | lea eax, [filename] |
127 | stdcall load_file, eax |
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237 | serge | 128 | mov ecx, -ERROR_FILE_NOT_FOUND |
129 | test eax, eax |
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247 | serge | 130 | jz .err_file |
237 | serge | 131 | |
132 | mov [file_base], eax |
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133 | mov [file_size], ebx |
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134 | |||
363 | serge | 135 | lea ebx, [hdr_cmdline] |
237 | serge | 136 | call test_app_header |
137 | mov ecx, -0x1F |
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138 | test eax, eax |
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247 | serge | 139 | jz .err_hdr |
237 | serge | 140 | |
506 | mikedld | 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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146 | cmp [application_table_status],0 |
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147 | je .get_lock |
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148 | call change_task |
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149 | jmp .wait_lock |
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150 | |||
151 | .get_lock: |
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152 | mov eax, 1 |
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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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156 | |||
157 | call set_application_table_status |
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158 | |||
159 | call get_new_process_place |
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160 | test eax, eax |
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161 | mov ecx, -0x20 ; too many processes |
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269 | serge | 162 | jz .err |
237 | serge | 163 | |
164 | mov [slot], eax |
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165 | shl eax, 8 |
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380 | serge | 166 | add eax, SLOT_BASE |
237 | serge | 167 | mov [slot_base], eax |
168 | mov edi, eax |
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169 | _clear_ 256 ;clean extended information about process |
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170 | |||
171 | ; write application name |
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519 | serge | 172 | lea eax, [filename] |
173 | stdcall strrchr, eax, '/' ; now eax points to name without path |
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237 | serge | 174 | |
175 | lea esi, [eax+1] |
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176 | test eax, eax |
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177 | jnz @F |
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363 | serge | 178 | lea esi, [filename] |
237 | serge | 179 | @@: |
180 | mov ecx, 8 ; 8 chars for name |
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181 | mov edi, [slot_base] |
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182 | .copy_process_name_loop: |
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183 | lodsb |
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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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190 | .copy_process_name_done: |
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191 | |||
192 | mov ebx, cr3 |
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193 | mov [save_cr3], ebx |
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269 | serge | 194 | |
363 | serge | 195 | stdcall create_app_space,[hdr_mem],[file_base],[file_size] |
364 | diamond | 196 | mov ecx, -30 ; no memory |
237 | serge | 197 | test eax, eax |
198 | jz .failed |
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199 | |||
200 | mov ebx,[slot_base] |
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201 | mov [ebx+APPDATA.dir_table],eax |
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363 | serge | 202 | mov eax,[hdr_mem] |
237 | serge | 203 | mov [ebx+APPDATA.mem_size],eax |
204 | |||
357 | serge | 205 | if GREEDY_KERNEL |
206 | else |
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363 | serge | 207 | mov ecx, [hdr_mem] |
269 | serge | 208 | mov edi, [file_size] |
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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213 | |||
214 | xor eax, eax |
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465 | serge | 215 | ; add edi, new_app_base |
237 | serge | 216 | cld |
269 | serge | 217 | rep stosb |
247 | serge | 218 | @@: |
269 | serge | 219 | end if |
220 | |||
221 | ; release only virtual space, not phisical memory |
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222 | |||
223 | stdcall free_kernel_space, [file_base] |
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363 | serge | 224 | lea eax, [hdr_cmdline] |
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 | |
229 | mov eax, [save_cr3] |
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230 | call set_cr3 |
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231 | |||
247 | serge | 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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164 | serge | 235 | ret |
237 | serge | 236 | .failed: |
237 | mov eax, [save_cr3] |
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238 | call set_cr3 |
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269 | serge | 239 | .err: |
247 | serge | 240 | .err_hdr: |
241 | stdcall kernel_free,[file_base] |
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242 | .err_file: |
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237 | serge | 243 | xor eax, eax |
244 | mov [application_table_status],eax |
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321 | diamond | 245 | mov eax, ecx |
237 | serge | 246 | ret |
247 | endp |
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164 | serge | 248 | |
237 | serge | 249 | align 4 |
250 | test_app_header: |
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251 | virtual at eax |
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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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164 | serge | 255 | APP_HEADER_01 APP_HEADER_01 |
256 | end virtual |
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257 | |||
237 | serge | 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 | |
237 | serge | 263 | cmp [eax+6], word '00' |
264 | jne .check_01_header |
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164 | serge | 265 | |
237 | serge | 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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269 | serge | 276 | mov edx, [APP_HEADER_00.i_end] |
277 | mov [ebx+0x14], edx |
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164 | serge | 278 | ret |
279 | |||
237 | serge | 280 | .check_01_header: |
164 | serge | 281 | |
237 | serge | 282 | cmp [eax+6],word '01' |
283 | jne .fail |
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284 | |||
285 | mov ecx,[APP_HEADER_01.start] |
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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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292 | cmp edx,[APP_HEADER_01.i_end] |
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293 | jb .fail |
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294 | ; \end{diamond}[20.08.2006] |
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295 | |||
237 | serge | 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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269 | serge | 303 | mov edx, [APP_HEADER_01.i_end] |
304 | mov [ebx+0x14], edx |
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237 | serge | 305 | ret |
306 | .fail: |
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164 | serge | 307 | xor eax, eax |
308 | ret |
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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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319 | mov eax,CURRENT_TASK |
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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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324 | .newprocessplace: |
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325 | ;eax = address of process information for current slot |
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326 | cmp eax,ebx |
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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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331 | .endnewprocessplace: |
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332 | mov ebx,eax |
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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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339 | .failed: |
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340 | xor eax,eax |
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341 | ret |
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342 | endp |
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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 |
164 | serge | 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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352 | |||
276 | serge | 353 | mov ebx, pg_data.pg_mutex |
354 | call wait_mutex ;ebx |
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164 | serge | 355 | |
356 | xor eax, eax |
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357 | mov [dir_addr], eax |
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358 | |||
359 | mov eax, [app_size] |
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172 | serge | 360 | add eax, 4095 |
164 | serge | 361 | and eax, NOT(4095) |
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 | |
164 | serge | 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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371 | |||
170 | serge | 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 | |
170 | serge | 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 |
381 | lea eax, [ecx+ebx+2] ;only image size |
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382 | else |
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383 | lea eax, [eax+ebx+2] ;all requested memory |
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384 | end if |
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385 | cmp eax, [pg_data.pages_free] |
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386 | ja .fail |
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387 | |||
164 | serge | 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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393 | |||
394 | mov edi, [tmp_task_pdir] |
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465 | serge | 395 | mov ecx, (OS_BASE shr 20)/4 |
396 | xor eax, eax |
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164 | serge | 397 | cld |
465 | serge | 398 | rep stosd |
399 | |||
400 | mov ecx, (OS_BASE shr 20)/4 |
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401 | mov esi, sys_pgdir+(OS_BASE shr 20) |
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164 | serge | 402 | rep movsd |
403 | |||
378 | serge | 404 | mov eax, [dir_addr] |
405 | or eax, PG_SW |
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465 | serge | 406 | mov [edi-4096+(page_tabs shr 20)], eax |
378 | serge | 407 | |
465 | serge | 408 | and eax, -4096 |
164 | serge | 409 | call set_cr3 |
410 | |||
411 | mov edx, [app_tabs] |
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412 | mov edi, new_app_base |
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413 | @@: |
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414 | call alloc_page |
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415 | test eax, eax |
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416 | jz .fail |
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417 | |||
188 | serge | 418 | stdcall map_page_table, edi, eax |
164 | serge | 419 | add edi, 0x00400000 |
420 | dec edx |
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421 | jnz @B |
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422 | |||
423 | mov edi, new_app_base |
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424 | shr edi, 10 |
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365 | serge | 425 | add edi, page_tabs |
269 | serge | 426 | |
164 | serge | 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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431 | |||
269 | serge | 432 | mov ecx, [img_pages] |
433 | mov ebx, PG_UW |
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164 | serge | 434 | mov edx, new_app_base |
269 | serge | 435 | mov esi, [img_base] |
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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365 | serge | 439 | add esi, page_tabs |
440 | add edi, page_tabs |
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269 | serge | 441 | .remap: |
442 | lodsd |
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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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449 | |||
450 | mov ecx, [app_pages] |
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451 | test ecx, ecx |
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452 | jz .done |
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453 | |||
454 | if GREEDY_KERNEL |
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455 | mov eax, 0x02 |
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456 | .reserve: |
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457 | stosd |
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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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462 | else |
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463 | |||
164 | serge | 464 | .alloc: |
465 | call alloc_page |
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466 | test eax, eax |
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467 | jz .fail |
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468 | |||
469 | stdcall map_page,edx,eax,dword PG_UW |
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470 | add edx, 0x1000 |
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269 | serge | 471 | dec [app_pages] |
164 | serge | 472 | jnz .alloc |
269 | serge | 473 | end if |
164 | serge | 474 | |
269 | serge | 475 | .done: |
164 | serge | 476 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
477 | |||
478 | dec [pg_data.pg_mutex] |
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479 | mov eax, [dir_addr] |
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480 | ret |
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481 | .fail: |
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482 | dec [pg_data.pg_mutex] |
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483 | cmp [dir_addr], 0 |
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357 | serge | 484 | je @f |
164 | serge | 485 | stdcall destroy_app_space, [dir_addr] |
486 | @@: |
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487 | xor eax, eax |
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488 | ret |
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489 | endp |
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490 | |||
491 | align 4 |
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492 | set_cr3: |
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465 | serge | 493 | |
494 | mov ebx, [current_slot] |
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495 | mov [ebx+APPDATA.dir_table], eax |
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164 | serge | 496 | mov cr3, eax |
497 | ret |
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498 | |||
499 | align 4 |
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500 | proc destroy_page_table stdcall, pg_tab:dword |
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501 | |||
502 | push esi |
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503 | |||
504 | mov esi, [pg_tab] |
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505 | mov ecx, 1024 |
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506 | .free: |
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507 | mov eax, [esi] |
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508 | test eax, 1 |
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509 | jz .next |
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510 | call free_page |
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511 | .next: |
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512 | add esi, 4 |
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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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517 | endp |
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518 | |||
519 | align 4 |
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520 | proc destroy_app_space stdcall, pg_dir:dword |
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521 | |||
276 | serge | 522 | mov ebx, pg_data.pg_mutex |
523 | call wait_mutex ;ebx |
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164 | serge | 524 | |
525 | xor edx,edx |
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526 | mov eax,0x2 |
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527 | mov ebx, [pg_dir] |
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528 | .loop: |
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529 | ;eax = current slot of process |
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530 | mov ecx,eax |
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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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380 | serge | 535 | cmp [SLOT_BASE+ecx+0xB8],ebx ;compare page directory addresses |
164 | serge | 536 | jnz @f |
537 | inc edx ;thread found |
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538 | @@: |
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539 | inc eax |
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540 | cmp eax,[TASK_COUNT] ;exit loop if we look through all processes |
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541 | jle .loop |
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542 | |||
543 | ;edx = number of threads |
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544 | ;our process is zombi so it isn't counted |
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545 | cmp edx,1 |
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546 | jg .exit |
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547 | ;if there isn't threads then clear memory. |
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548 | |||
549 | mov eax, [pg_dir] |
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550 | and eax, not 0xFFF |
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551 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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552 | mov esi, [tmp_task_pdir] |
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465 | serge | 553 | mov edi, (OS_BASE shr 20)/4 |
164 | serge | 554 | .destroy: |
555 | mov eax, [esi] |
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556 | test eax, 1 |
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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 |
||
563 | .next: |
||
564 | add esi, 4 |
||
565 | dec edi |
||
566 | jnz .destroy |
||
567 | |||
568 | mov eax, [pg_dir] |
||
569 | call free_page |
||
570 | .exit: |
||
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 |
||
575 | endp |
||
576 | |||
520 | serge | 577 | align 4 |
578 | get_pid: |
||
579 | mov eax, [TASK_DATA] |
||
580 | mov eax, [eax+4] |
||
581 | ret |
||
582 | |||
164 | serge | 583 | pid_to_slot: |
584 | ;Input: |
||
585 | ; eax - pid of process |
||
586 | ;Output: |
||
587 | ; eax - slot of process or 0 if process don't exists |
||
588 | ;Search process by PID. |
||
589 | push ebx |
||
590 | push ecx |
||
591 | mov ebx,[TASK_COUNT] |
||
592 | shl ebx,5 |
||
593 | mov ecx,2*32 |
||
594 | |||
595 | .loop: |
||
596 | ;ecx=offset of current process info entry |
||
597 | ;ebx=maximum permitted offset |
||
598 | cmp byte [CURRENT_TASK+ecx+0xa],9 |
||
599 | jz .endloop ;skip empty slots |
||
600 | cmp [CURRENT_TASK+ecx+0x4],eax ;check PID |
||
601 | jz .pid_found |
||
602 | .endloop: |
||
603 | add ecx,32 |
||
604 | cmp ecx,ebx |
||
605 | jle .loop |
||
606 | |||
607 | pop ecx |
||
608 | pop ebx |
||
609 | xor eax,eax |
||
610 | ret |
||
611 | |||
612 | .pid_found: |
||
613 | shr ecx,5 |
||
614 | mov eax,ecx ;convert offset to index of slot |
||
615 | pop ecx |
||
616 | pop ebx |
||
617 | ret |
||
618 | |||
619 | check_region: |
||
620 | ;input: |
||
621 | ; ebx - start of buffer |
||
622 | ; ecx - size of buffer |
||
623 | ;result: |
||
624 | ; eax = 1 region lays in app memory |
||
625 | ; eax = 0 region don't lays in app memory |
||
626 | mov eax,[CURRENT_TASK] |
||
627 | jmp check_process_region |
||
628 | ;----------------------------------------------------------------------------- |
||
629 | check_process_region: |
||
630 | ;input: |
||
631 | ; eax - slot |
||
632 | ; ebx - start of buffer |
||
633 | ; ecx - size of buffer |
||
634 | ;result: |
||
635 | ; eax = 1 region lays in app memory |
||
636 | ; eax = 0 region don't lays in app memory |
||
637 | |||
638 | test ecx,ecx |
||
639 | jle .ok |
||
640 | shl eax,5 |
||
641 | cmp word [CURRENT_TASK+eax+0xa],0 |
||
642 | jnz .failed |
||
643 | shl eax,3 |
||
380 | serge | 644 | mov eax,[SLOT_BASE+eax+0xb8] |
164 | serge | 645 | test eax,eax |
646 | jz .failed |
||
647 | |||
648 | mov eax,1 |
||
649 | ret |
||
650 | |||
651 | |||
652 | ; call MEM_Get_Linear_Address |
||
653 | ; push ebx |
||
654 | ; push ecx |
||
655 | ; push edx |
||
656 | ; mov edx,ebx |
||
657 | ; and edx,not (4096-1) |
||
658 | ; sub ebx,edx |
||
659 | ; add ecx,ebx |
||
660 | ; mov ebx,edx |
||
661 | ; add ecx,(4096-1) |
||
662 | ; and ecx,not (4096-1) |
||
663 | ;.loop: |
||
664 | ;;eax - linear address of page directory |
||
665 | ;;ebx - current page |
||
666 | ;;ecx - current size |
||
667 | ; mov edx,ebx |
||
668 | ; shr edx,22 |
||
669 | ; mov edx,[eax+4*edx] |
||
670 | ; and edx,not (4096-1) |
||
671 | ; test edx,edx |
||
672 | ; jz .failed1 |
||
673 | ; push eax |
||
674 | ; mov eax,edx |
||
675 | ; call MEM_Get_Linear_Address |
||
676 | ; mov edx,ebx |
||
677 | ; shr edx,12 |
||
678 | ; and edx,(1024-1) |
||
679 | ; mov eax,[eax+4*edx] |
||
680 | ; and eax,not (4096-1) |
||
681 | ; test eax,eax |
||
682 | ; pop eax |
||
683 | ; jz .failed1 |
||
684 | ; add ebx,4096 |
||
685 | ; sub ecx,4096 |
||
686 | ; jg .loop |
||
687 | ; pop edx |
||
688 | ; pop ecx |
||
689 | ; pop ebx |
||
690 | .ok: |
||
691 | mov eax,1 |
||
692 | ret |
||
693 | ; |
||
694 | ;.failed1: |
||
695 | ; pop edx |
||
696 | ; pop ecx |
||
697 | ; pop ebx |
||
698 | .failed: |
||
699 | xor eax,eax |
||
700 | ret |
||
701 | |||
702 | align 4 |
||
703 | proc read_process_memory |
||
704 | ;Input: |
||
705 | ; eax - process slot |
||
706 | ; ebx - buffer address |
||
707 | ; ecx - buffer size |
||
708 | ; edx - start address in other process |
||
709 | ;Output: |
||
710 | ; eax - number of bytes read. |
||
711 | locals |
||
712 | slot dd ? |
||
713 | buff dd ? |
||
714 | r_count dd ? |
||
715 | offset dd ? |
||
716 | tmp_r_cnt dd ? |
||
717 | endl |
||
718 | |||
719 | mov [slot], eax |
||
720 | mov [buff], ebx |
||
521 | diamond | 721 | and [r_count], 0 |
164 | serge | 722 | mov [tmp_r_cnt], ecx |
723 | mov [offset], edx |
||
724 | |||
725 | pushad |
||
726 | .read_mem: |
||
727 | mov edx, [offset] |
||
728 | mov ebx, [tmp_r_cnt] |
||
729 | |||
730 | mov ecx, 0x400000 |
||
731 | and edx, 0x3FFFFF |
||
732 | sub ecx, edx |
||
733 | cmp ecx, ebx |
||
734 | jbe @f |
||
735 | mov ecx, ebx |
||
736 | @@: |
||
737 | cmp ecx, 0x8000 |
||
738 | jna @F |
||
739 | mov ecx, 0x8000 |
||
740 | @@: |
||
741 | mov eax, [slot] |
||
742 | shl eax,8 |
||
743 | mov ebx, [offset] |
||
465 | serge | 744 | ; add ebx, new_app_base |
164 | serge | 745 | push ecx |
746 | stdcall map_memEx, [proc_mem_map],\ |
||
380 | serge | 747 | [SLOT_BASE+eax+0xB8],\ |
164 | serge | 748 | ebx, ecx |
749 | pop ecx |
||
750 | |||
751 | mov esi, [offset] |
||
752 | and esi, 0xfff |
||
753 | add esi, [proc_mem_map] |
||
754 | mov edi, [buff] |
||
755 | mov edx, ecx |
||
756 | rep movsb |
||
521 | diamond | 757 | add [r_count], edx |
164 | serge | 758 | |
759 | add [offset], edx |
||
760 | sub [tmp_r_cnt], edx |
||
761 | jnz .read_mem |
||
762 | |||
763 | popad |
||
764 | mov eax, [r_count] |
||
765 | ret |
||
766 | endp |
||
767 | |||
768 | align 4 |
||
769 | proc write_process_memory |
||
770 | ;Input: |
||
771 | ; eax - process slot |
||
772 | ; ebx - buffer address |
||
773 | ; ecx - buffer size |
||
774 | ; edx - start address in other process |
||
775 | ;Output: |
||
776 | ; eax - number of bytes written |
||
777 | |||
778 | locals |
||
779 | slot dd ? |
||
780 | buff dd ? |
||
781 | w_count dd ? |
||
782 | offset dd ? |
||
783 | tmp_w_cnt dd ? |
||
784 | endl |
||
785 | |||
786 | mov [slot], eax |
||
787 | mov [buff], ebx |
||
521 | diamond | 788 | and [w_count], 0 |
164 | serge | 789 | mov [tmp_w_cnt], ecx |
790 | mov [offset], edx |
||
791 | |||
792 | pushad |
||
793 | .read_mem: |
||
794 | mov edx, [offset] |
||
795 | mov ebx, [tmp_w_cnt] |
||
796 | |||
797 | mov ecx, 0x400000 |
||
798 | and edx, 0x3FFFFF |
||
799 | sub ecx, edx |
||
800 | cmp ecx, ebx |
||
801 | jbe @f |
||
802 | mov ecx, ebx |
||
803 | @@: |
||
804 | cmp ecx, 0x8000 |
||
805 | jna @F |
||
806 | mov ecx, 0x8000 |
||
807 | @@: |
||
808 | mov eax, [slot] |
||
809 | shl eax,8 |
||
810 | mov ebx, [offset] |
||
465 | serge | 811 | ; add ebx, new_app_base |
164 | serge | 812 | push ecx |
813 | stdcall map_memEx, [proc_mem_map],\ |
||
380 | serge | 814 | [SLOT_BASE+eax+0xB8],\ |
164 | serge | 815 | ebx, ecx |
816 | pop ecx |
||
817 | |||
818 | mov edi, [offset] |
||
819 | and edi, 0xfff |
||
820 | add edi, [proc_mem_map] |
||
821 | mov esi, [buff] |
||
822 | mov edx, ecx |
||
823 | rep movsb |
||
824 | |||
521 | diamond | 825 | add [w_count], edx |
164 | serge | 826 | add [offset], edx |
827 | sub [tmp_w_cnt], edx |
||
828 | jnz .read_mem |
||
829 | |||
830 | popad |
||
831 | mov eax, [w_count] |
||
832 | ret |
||
833 | endp |
||
834 | |||
835 | align 4 |
||
836 | proc new_sys_threads |
||
837 | locals |
||
838 | slot dd ? |
||
237 | serge | 839 | app_cmdline dd ? ;0x00 |
840 | app_path dd ? ;0x04 |
||
841 | app_eip dd ? ;0x08 |
||
842 | app_esp dd ? ;0x0C |
||
843 | app_mem dd ? ;0x10 |
||
164 | serge | 844 | endl |
845 | |||
237 | serge | 846 | cmp eax,1 |
847 | jne .failed ;other subfunctions |
||
164 | serge | 848 | |
237 | serge | 849 | xor eax,eax |
850 | mov [app_cmdline], eax |
||
851 | mov [app_path], eax |
||
852 | mov [app_eip], ebx |
||
853 | mov [app_esp], ecx |
||
164 | serge | 854 | |
506 | mikedld | 855 | ;mov esi,new_process_loading |
856 | ;call sys_msg_board_str |
||
857 | DEBUGF 1,"%s",new_process_loading |
||
164 | serge | 858 | .wait_lock: |
859 | cmp [application_table_status],0 |
||
860 | je .get_lock |
||
861 | call change_task |
||
862 | jmp .wait_lock |
||
863 | |||
864 | .get_lock: |
||
865 | mov eax, 1 |
||
866 | xchg eax, [application_table_status] |
||
867 | cmp eax, 0 |
||
868 | jne .wait_lock |
||
869 | |||
870 | call set_application_table_status |
||
871 | |||
872 | call get_new_process_place |
||
873 | test eax, eax |
||
874 | jz .failed |
||
875 | |||
876 | mov [slot], eax |
||
877 | |||
465 | serge | 878 | mov esi,[current_slot] |
237 | serge | 879 | mov ebx,esi ;ebx=esi - pointer to extended information about current thread |
164 | serge | 880 | |
237 | serge | 881 | mov edi, eax |
164 | serge | 882 | shl edi,8 |
380 | serge | 883 | add edi,SLOT_BASE |
237 | serge | 884 | mov edx,edi ;edx=edi - pointer to extended infomation about new thread |
164 | serge | 885 | mov ecx,256/4 |
237 | serge | 886 | xor eax, eax |
887 | cld |
||
888 | rep stosd ;clean extended information about new thread |
||
889 | mov esi,ebx |
||
164 | serge | 890 | mov edi,edx |
891 | mov ecx,11 |
||
237 | serge | 892 | rep movsb ;copy process name |
164 | serge | 893 | |
237 | serge | 894 | mov eax,[ebx+APPDATA.heap_base] |
895 | mov [edx+APPDATA.heap_base], eax |
||
164 | serge | 896 | |
237 | serge | 897 | mov ecx,[ebx+APPDATA.heap_top] |
898 | mov [edx+APPDATA.heap_top], ecx |
||
899 | |||
900 | mov eax,[ebx+APPDATA.mem_size] |
||
901 | mov [edx+APPDATA.mem_size], eax |
||
902 | |||
903 | mov ecx,[ebx+APPDATA.dir_table] |
||
904 | mov [edx+APPDATA.dir_table],ecx ;copy page directory |
||
905 | |||
906 | lea eax, [app_cmdline] |
||
907 | stdcall set_app_params ,[slot],eax,dword 0,\ |
||
908 | dword 0,dword 0 |
||
909 | |||
506 | mikedld | 910 | ;mov esi,new_process_running |
911 | ;call sys_msg_board_str ;output information about succefull startup |
||
912 | DEBUGF 1,"%s",new_process_running |
||
164 | serge | 913 | |
914 | mov [application_table_status],0 ;unlock application_table_status mutex |
||
915 | mov eax,[process_number] ;set result |
||
916 | ret |
||
917 | .failed: |
||
918 | mov [application_table_status],0 |
||
919 | mov eax,-1 |
||
920 | ret |
||
921 | endp |
||
922 | |||
276 | serge | 923 | ; param |
924 | ; ebx=mutex |
||
925 | |||
164 | serge | 926 | align 4 |
276 | serge | 927 | wait_mutex: |
928 | push eax |
||
929 | push ebx |
||
321 | diamond | 930 | .do_wait: |
164 | serge | 931 | cmp dword [ebx],0 |
932 | je .get_lock |
||
933 | call change_task |
||
321 | diamond | 934 | jmp .do_wait |
164 | serge | 935 | .get_lock: |
936 | mov eax, 1 |
||
937 | xchg eax, [ebx] |
||
938 | test eax, eax |
||
321 | diamond | 939 | jnz .do_wait |
276 | serge | 940 | pop ebx |
941 | pop eax |
||
164 | serge | 942 | ret |
943 | |||
465 | serge | 944 | EFL_IF equ 0x0200 |
945 | EFL_IOPL1 equ 0x1000 |
||
946 | EFL_IOPL2 equ 0x2000 |
||
947 | EFL_IOPL3 equ 0x3000 |
||
948 | |||
949 | |||
237 | serge | 950 | align 4 |
951 | proc set_app_params stdcall,slot:dword, params:dword,\ |
||
952 | cmd_line:dword, app_path:dword, flags:dword |
||
164 | serge | 953 | |
357 | serge | 954 | locals |
955 | pl0_stack dd ? |
||
956 | endl |
||
237 | serge | 957 | |
392 | serge | 958 | stdcall kernel_alloc, RING0_STACK_SIZE+512 |
357 | serge | 959 | mov [pl0_stack], eax |
960 | |||
392 | serge | 961 | lea edi, [eax+RING0_STACK_SIZE] |
357 | serge | 962 | |
963 | mov eax, [slot] |
||
964 | mov ebx, eax |
||
965 | |||
966 | shl eax, 8 |
||
380 | serge | 967 | mov [eax+SLOT_BASE+APPDATA.fpu_state], edi |
968 | mov [eax+SLOT_BASE+APPDATA.fpu_handler], 0 |
||
969 | mov [eax+SLOT_BASE+APPDATA.sse_handler], 0 |
||
357 | serge | 970 | |
465 | serge | 971 | ;set default io permission map |
972 | mov [eax+SLOT_BASE+APPDATA.io_map],\ |
||
973 | (tss._io_map_0-OS_BASE+PG_MAP) |
||
974 | mov [eax+SLOT_BASE+APPDATA.io_map+4],\ |
||
975 | (tss._io_map_1-OS_BASE+PG_MAP) |
||
976 | |||
357 | serge | 977 | mov esi, fpu_data |
237 | serge | 978 | mov ecx, 512/4 |
979 | rep movsd |
||
980 | |||
357 | serge | 981 | cmp ebx,[TASK_COUNT] |
982 | jle .noinc |
||
983 | inc dword [TASK_COUNT] ;update number of processes |
||
237 | serge | 984 | .noinc: |
281 | serge | 985 | shl ebx,8 |
380 | serge | 986 | lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET] |
987 | mov [SLOT_BASE+APPDATA.fd_ev+ebx],edx |
||
988 | mov [SLOT_BASE+APPDATA.bk_ev+ebx],edx |
||
354 | serge | 989 | |
990 | add edx, APP_OBJ_OFFSET-APP_EV_OFFSET |
||
380 | serge | 991 | mov [SLOT_BASE+APPDATA.fd_obj+ebx],edx |
992 | mov [SLOT_BASE+APPDATA.bk_obj+ebx],edx |
||
237 | serge | 993 | |
281 | serge | 994 | mov ecx, [def_cursor] |
380 | serge | 995 | mov [SLOT_BASE+APPDATA.cursor+ebx],ecx |
357 | serge | 996 | mov eax, [pl0_stack] |
380 | serge | 997 | mov [SLOT_BASE+APPDATA.pl0_stack+ebx],eax |
281 | serge | 998 | |
521 | diamond | 999 | push ebx |
1000 | stdcall kernel_alloc, 0x1000 |
||
1001 | pop ebx |
||
1002 | mov esi,[current_slot] |
||
1003 | mov esi,[esi+APPDATA.cur_dir] |
||
1004 | mov ecx,0x1000/4 |
||
1005 | mov edi,eax |
||
1006 | mov [ebx+SLOT_BASE+APPDATA.cur_dir],eax |
||
1007 | rep movsd |
||
1008 | |||
281 | serge | 1009 | shr ebx,3 |
237 | serge | 1010 | mov eax, new_app_base |
1011 | mov dword [CURRENT_TASK+ebx+0x10],eax |
||
1012 | |||
1013 | .add_command_line: |
||
1014 | mov edx,[params] |
||
1015 | mov edx,[edx] ;app_cmdline |
||
525 | diamond | 1016 | test edx,edx |
1017 | jz @f ;application doesn't need parameters |
||
281 | serge | 1018 | |
1019 | mov eax, edx |
||
1020 | add eax, 256 |
||
1021 | jc @f |
||
1022 | |||
380 | serge | 1023 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
281 | serge | 1024 | ja @f |
1025 | |||
525 | diamond | 1026 | mov byte [edx], 0 ;force empty string if no cmdline given |
1027 | mov eax, [cmd_line] |
||
1028 | test eax, eax |
||
1029 | jz @f |
||
1030 | stdcall strncpy, edx, eax, 256 |
||
237 | serge | 1031 | @@: |
1032 | mov edx,[params] |
||
1033 | mov edx, [edx+4] ;app_path |
||
1034 | test edx,edx |
||
1035 | jz @F ;application don't need path of file |
||
465 | serge | 1036 | mov eax, edx |
1037 | add eax, 1024 |
||
1038 | jc @f |
||
1039 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
||
1040 | ja @f |
||
519 | serge | 1041 | stdcall strncpy, edx, [app_path], 1024 |
237 | serge | 1042 | @@: |
1043 | mov ebx,[slot] |
||
1044 | mov eax,ebx |
||
1045 | shl ebx,5 |
||
465 | serge | 1046 | lea ecx,[draw_data+ebx] ;ecx - pointer to draw data |
1047 | |||
237 | serge | 1048 | ; set window state to 'normal' (non-minimized/maximized/rolled-up) state |
1049 | mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL |
||
1050 | mov [ebx+window_data+WDATA.fl_redraw], 1 |
||
1051 | add ebx,CURRENT_TASK ;ebx - pointer to information about process |
||
1052 | mov [ebx+TASKDATA.wnd_number],al;set window number on screen = process slot |
||
1053 | |||
1054 | mov [ebx+TASKDATA.event_mask],dword 1+2+4 ;set default event flags (see 40 function) |
||
1055 | |||
1056 | inc dword [process_number] |
||
1057 | mov eax,[process_number] |
||
1058 | mov [ebx+4],eax ;set PID |
||
1059 | |||
1060 | ;set draw data to full screen |
||
1061 | |||
1062 | mov [ecx+0],dword 0 |
||
1063 | mov [ecx+4],dword 0 |
||
381 | serge | 1064 | mov eax,[ScreenWidth] |
237 | serge | 1065 | mov [ecx+8],eax |
381 | serge | 1066 | mov eax,[ScreenHeight] |
237 | serge | 1067 | mov [ecx+12],eax |
1068 | |||
465 | serge | 1069 | mov ebx, [pl0_stack] |
1070 | mov esi,[params] |
||
1071 | lea ecx, [ebx+REG_EIP] |
||
237 | serge | 1072 | xor eax, eax |
1073 | |||
465 | serge | 1074 | mov [ebx+REG_RET], dword irq0.return |
1075 | mov [ebx+REG_EDI], eax |
||
1076 | mov [ebx+REG_ESI], eax |
||
1077 | mov [ebx+REG_EBP], eax |
||
1078 | mov [ebx+REG_ESP], ecx ;ebx+REG_EIP |
||
1079 | mov [ebx+REG_EBX], eax |
||
1080 | mov [ebx+REG_EDX], eax |
||
1081 | mov [ebx+REG_ECX], eax |
||
1082 | mov [ebx+REG_EAX], eax |
||
237 | serge | 1083 | |
1084 | mov eax, [esi+0x08] ;app_eip |
||
465 | serge | 1085 | mov [ebx+REG_EIP], eax ;app_entry |
1086 | mov [ebx+REG_CS], dword app_code |
||
1087 | mov [ebx+REG_EFLAGS], dword EFL_IOPL1+EFL_IF |
||
1088 | |||
237 | serge | 1089 | mov eax, [esi+0x0C] ;app_esp |
465 | serge | 1090 | mov [ebx+REG_APP_ESP], eax ;app_stack |
1091 | mov [ebx+REG_SS], dword app_data |
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237 | serge | 1092 | |
465 | serge | 1093 | lea ecx, [ebx+REG_RET] |
1094 | mov ebx, [slot] |
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569 | diamond | 1095 | shl ebx, 5 |
1096 | mov [ebx*8+SLOT_BASE+APPDATA.saved_esp], ecx |
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237 | serge | 1097 | |
569 | diamond | 1098 | xor ecx, ecx ; process state - running |
237 | serge | 1099 | ; set if debuggee |
1100 | test byte [flags], 1 |
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1101 | jz .no_debug |
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569 | diamond | 1102 | inc ecx ; process state - suspended |
237 | serge | 1103 | mov eax,[CURRENT_TASK] |
569 | diamond | 1104 | mov [SLOT_BASE+ebx*8+APPDATA.debugger_slot],eax |
237 | serge | 1105 | .no_debug: |
569 | diamond | 1106 | mov [CURRENT_TASK+ebx+TASKDATA.state], cl |
506 | mikedld | 1107 | ;mov esi,new_process_running |
1108 | ;call sys_msg_board_str ;output information about succefull startup |
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1109 | DEBUGF 1,"%s",new_process_running |
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237 | serge | 1110 | ret |
1111 | endp |
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1112 | |||
164 | serge | 1113 | include "debug.inc"256 |