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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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10051 | ace_dent | 3 | ;; Copyright (C) KolibriOS team 2004-2024. All rights reserved. ;; |
6502 | pathoswith | 4 | ;; Distributed under terms of the GNU General Public License. ;; |
2288 | clevermous | 5 | ;; ;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | |||
7136 | dunkaist | 9 | GREEDY_KERNEL = 0 |
2288 | clevermous | 10 | |
2384 | hidnplayr | 11 | struct APP_HEADER_01_ |
12 | banner dq ? |
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13 | version dd ? ;+8 |
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14 | start dd ? ;+12 |
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15 | i_end dd ? ;+16 |
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16 | mem_size dd ? ;+20 |
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17 | stack_top dd ? ;+24 |
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18 | i_param dd ? ;+28 |
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19 | i_icon dd ? ;+32 |
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20 | ends |
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2288 | clevermous | 21 | |
6333 | serge | 22 | struct APP_HDR |
23 | cmdline rd 1 ;0x00 |
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24 | path rd 1 ;0x04 |
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25 | eip rd 1 ;0x08 |
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26 | esp rd 1 ;0x0C |
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27 | _edata rd 1 ;0x10 |
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28 | _emem rd 1 ;0x14 |
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29 | img_base rd 1 ;0x18 |
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30 | img_size rd 1 |
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31 | filename_size rd 1 |
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32 | cmdline_size rd 1 |
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6502 | pathoswith | 33 | path_string rd 1 |
2384 | hidnplayr | 34 | ends |
2288 | clevermous | 35 | |
36 | macro _clear_ op |
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37 | { mov ecx, op/4 |
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38 | xor eax, eax |
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39 | cld |
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40 | rep stosd |
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41 | } |
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42 | |||
6333 | serge | 43 | align 4 |
44 | _strnlen: |
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45 | mov edx, ecx |
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46 | xor eax, eax |
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47 | repne scasb |
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48 | jne @F |
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49 | inc ecx |
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50 | @@: |
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51 | mov eax, edx |
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52 | sub eax, ecx |
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53 | retn |
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54 | |||
2288 | clevermous | 55 | fs_execute_from_sysdir: |
56 | xor ebx, ebx |
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57 | fs_execute_from_sysdir_param: |
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6792 | pathoswith | 58 | stdcall kernel_alloc, maxPathLength |
59 | push eax ebx |
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60 | mov esi, ebp |
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61 | mov edi, eax |
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62 | xor eax, eax |
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63 | call getFullPath |
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64 | pop ecx ebx |
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2288 | clevermous | 65 | xor edx, edx |
9031 | Boppan | 66 | ; @brief Executes a program |
67 | ; @param edx Flags |
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68 | ; @param ecx Commandline |
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69 | ; @param ebx Absolute file path |
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70 | ; @param eax String length |
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9032 | Boppan | 71 | ; @returns Negated error code or new process number |
2288 | clevermous | 72 | proc fs_execute |
6502 | pathoswith | 73 | locals |
74 | cmdline rd 1 |
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75 | flags rd 1 |
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8593 | rgimad | 76 | slot rd 1 ; index of new thread slot |
8592 | rgimad | 77 | slot_base rd 1 ; base address of it |
6502 | pathoswith | 78 | ; app header data |
79 | hdr_cmdline rd 1 |
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80 | hdr_path rd 1 |
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81 | hdr_eip rd 1 |
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82 | hdr_esp rd 1 |
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83 | hdr_edata rd 1 |
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84 | hdr_emem rd 1 |
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85 | file_base rd 1 |
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86 | file_size rd 1 |
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87 | filename_size rd 1 |
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88 | cmdline_size rd 1 |
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89 | path_string rd 1 |
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90 | endl |
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2288 | clevermous | 91 | |
9248 | Doczom | 92 | and edx, 1 ;clear flags user. TODO: add api for start apps with user flags |
6333 | serge | 93 | mov [flags], edx |
6792 | pathoswith | 94 | mov [cmdline], ecx |
95 | mov [path_string], ebx |
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96 | mov [filename_size], eax |
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97 | mov esi, -ERROR_FILE_NOT_FOUND |
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6502 | pathoswith | 98 | test eax, eax |
99 | jz .err_file |
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6792 | pathoswith | 100 | stdcall load_file, ebx |
2288 | clevermous | 101 | test eax, eax |
102 | jz .err_file |
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103 | |||
104 | mov [file_base], eax |
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105 | mov [file_size], ebx |
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106 | lea ebx, [hdr_cmdline] |
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8593 | rgimad | 107 | call test_app_header ; fill our app header data locals with values from header of given program (if its correct) |
9038 | Boppan | 108 | mov esi, -TASKMAN_ERROR_NOT_A_EXECUTABLE |
2288 | clevermous | 109 | test eax, eax |
110 | jz .err_hdr |
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111 | |||
3534 | clevermous | 112 | call lock_application_table |
8592 | rgimad | 113 | call alloc_thread_slot ; create a slot for new thread |
9038 | Boppan | 114 | mov esi, -TASKMAN_ERROR_TOO_MANY_PROCESSES |
2288 | clevermous | 115 | test eax, eax |
6333 | serge | 116 | jz .err_0 |
2288 | clevermous | 117 | |
118 | mov [slot], eax |
||
9715 | Doczom | 119 | shl eax, BSF sizeof.APPDATA |
120 | lea edi, [SLOT_BASE + eax] |
||
6333 | serge | 121 | mov [slot_base], edi |
6502 | pathoswith | 122 | ; clean extended information about process |
8093 | dunkaist | 123 | mov ecx, sizeof.APPDATA/4 |
6333 | serge | 124 | xor eax, eax |
125 | cld |
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126 | rep stosd |
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8592 | rgimad | 127 | ; write application name ( APPDATA.appname ) |
6502 | pathoswith | 128 | stdcall strrchr, [path_string], '/' |
129 | lea esi, [eax+1] ; -> name without path |
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130 | mov ecx, 11 |
||
131 | mov edi, [slot_base] |
||
2288 | clevermous | 132 | @@: |
6502 | pathoswith | 133 | call utf8to16 |
134 | call uni2ansi_char |
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2288 | clevermous | 135 | cmp al, '.' |
6502 | pathoswith | 136 | jz @f |
2288 | clevermous | 137 | test al, al |
6502 | pathoswith | 138 | jz @f |
2288 | clevermous | 139 | stosb |
6502 | pathoswith | 140 | loop @b |
141 | @@: |
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6333 | serge | 142 | mov edi, [cmdline] |
143 | xor eax, eax |
||
144 | test edi, edi |
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6502 | pathoswith | 145 | jz @f |
6333 | serge | 146 | mov ecx, 65535 |
147 | call _strnlen |
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148 | cmp eax, 256 |
||
6502 | pathoswith | 149 | jb @f |
8592 | rgimad | 150 | ; if cmdline length >= 256 then increase needed memory size by this length |
6333 | serge | 151 | lea ebx, [eax+1] |
152 | add [hdr_emem], ebx |
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153 | @@: |
||
154 | mov [cmdline_size], eax |
||
8592 | rgimad | 155 | stdcall create_process, [hdr_emem] ; create a new process |
9038 | Boppan | 156 | mov esi, -TASKMAN_ERROR_OUT_OF_MEMORY |
2288 | clevermous | 157 | test eax, eax |
6333 | serge | 158 | jz .err_hdr |
2288 | clevermous | 159 | |
8592 | rgimad | 160 | ; add new process to the list |
9715 | Doczom | 161 | mov ebx, [sys_proc + LHEAD.prev] |
6263 | serge | 162 | __list_add eax, ebx, sys_proc |
8592 | rgimad | 163 | ; fill the structure fields: |
6333 | serge | 164 | mov ebx, [hdr_emem] |
9715 | Doczom | 165 | mov [eax + PROC.mem_used], ebx |
8592 | rgimad | 166 | |
167 | ; write that main thread of app belongs to new process |
||
2288 | clevermous | 168 | mov ebx, [slot_base] |
9715 | Doczom | 169 | mov [ebx + APPDATA.process], eax |
8592 | rgimad | 170 | |
171 | ; initialize the thread list of process: at this moment it consists only of one main thread |
||
9715 | Doczom | 172 | lea edx, [ebx + APPDATA.list] |
173 | lea ecx, [eax + PROC.thr_list] |
||
5130 | serge | 174 | list_add_tail edx, ecx |
8592 | rgimad | 175 | |
176 | ; allocate space and copy app header data locals and cmdline string there, put pointer to exec_params of new thread |
||
6502 | pathoswith | 177 | mov eax, [cmdline_size] |
178 | add eax, sizeof.APP_HDR |
||
179 | stdcall kernel_alloc, eax |
||
9715 | Doczom | 180 | mov [ebx + APPDATA.exec_params], eax |
6333 | serge | 181 | mov edi, eax |
182 | lea esi, [hdr_cmdline] |
||
183 | mov ecx, sizeof.APP_HDR/4 |
||
184 | rep movsd |
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185 | mov ecx, [cmdline_size] |
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186 | mov esi, [cmdline] |
||
187 | rep movsb |
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8592 | rgimad | 188 | ; set other parameters of application |
2288 | clevermous | 189 | lea eax, [hdr_cmdline] |
6333 | serge | 190 | stdcall set_app_params , [slot], eax, [flags] |
8592 | rgimad | 191 | mov eax, [process_number] ; return process number |
6333 | serge | 192 | call unlock_application_table |
193 | ret |
||
2288 | clevermous | 194 | |
6333 | serge | 195 | .err_0: |
3534 | clevermous | 196 | call unlock_application_table |
2288 | clevermous | 197 | .err_hdr: |
198 | stdcall kernel_free, [file_base] |
||
199 | .err_file: |
||
6502 | pathoswith | 200 | stdcall kernel_free, [path_string] |
2288 | clevermous | 201 | mov eax, esi |
202 | ret |
||
203 | endp |
||
204 | |||
205 | align 4 |
||
206 | test_app_header: |
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207 | virtual at eax |
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2384 | hidnplayr | 208 | APP_HEADER_01 APP_HEADER_01_ |
2288 | clevermous | 209 | end virtual |
210 | |||
211 | cmp dword [eax], 'MENU' |
||
212 | jne .fail |
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213 | cmp word [eax+4], 'ET' |
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214 | jne .fail |
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215 | |||
216 | cmp [eax+6], word '01' |
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217 | je @f |
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218 | cmp [eax+6], word '02' |
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219 | jne .fail |
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220 | @@: |
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221 | mov ecx, [APP_HEADER_01.start] |
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9715 | Doczom | 222 | mov [ebx + 0x08], ecx |
2288 | clevermous | 223 | mov edx, [APP_HEADER_01.mem_size] |
224 | |||
225 | ; \begin{diamond}[20.08.2006] |
||
226 | ; sanity check (functions 19,58 load app_i_end bytes and that must |
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227 | ; fit in allocated memory to prevent kernel faults) |
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228 | cmp edx, [APP_HEADER_01.i_end] |
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229 | jb .fail |
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230 | ; \end{diamond}[20.08.2006] |
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9794 | Doczom | 231 | cmp edx, OS_BASE ;check memory |
232 | jae .fail |
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233 | mov ecx, [pg_data.pages_free] |
||
234 | shl ecx, 12 ; ecx * 4kb |
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235 | cmp edx, ecx |
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236 | jae .fail |
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2288 | clevermous | 237 | |
9715 | Doczom | 238 | mov [ebx + APP_HDR._emem], edx |
2288 | clevermous | 239 | mov ecx, [APP_HEADER_01.stack_top] |
9715 | Doczom | 240 | mov [ebx + APP_HDR.esp], ecx |
2288 | clevermous | 241 | mov edx, [APP_HEADER_01.i_param] |
9715 | Doczom | 242 | mov [ebx + APP_HDR.cmdline], edx |
2288 | clevermous | 243 | mov ecx, [APP_HEADER_01.i_icon] |
9715 | Doczom | 244 | mov [ebx + APP_HDR.path], ecx |
2288 | clevermous | 245 | mov edx, [APP_HEADER_01.i_end] |
9715 | Doczom | 246 | mov [ebx + APP_HDR._edata], edx |
2288 | clevermous | 247 | ret |
248 | .fail: |
||
249 | xor eax, eax |
||
250 | ret |
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251 | |||
252 | align 4 |
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5130 | serge | 253 | alloc_thread_slot: |
2288 | clevermous | 254 | ;input: |
255 | ; none |
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256 | ;result: |
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5130 | serge | 257 | ; eax=[new_thread_slot]<>0 - ok |
2288 | clevermous | 258 | ; 0 - failed. |
259 | ;This function find least empty slot. |
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8866 | rgimad | 260 | ;It doesn't increase [thread_count]! |
5130 | serge | 261 | |
262 | |||
263 | mov edx, thr_slot_map |
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264 | pushfd |
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265 | cli |
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266 | .l1: |
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267 | bsf eax, [edx] |
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268 | jnz .found |
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269 | add edx, 4 |
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9715 | Doczom | 270 | cmp edx, thr_slot_map + 32 |
5130 | serge | 271 | jb .l1 |
272 | |||
273 | popfd |
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2288 | clevermous | 274 | xor eax, eax |
275 | ret |
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5130 | serge | 276 | .found: |
277 | btr [edx], eax |
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278 | sub edx, thr_slot_map |
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9715 | Doczom | 279 | lea eax, [eax + edx*8] |
5130 | serge | 280 | popfd |
281 | ret |
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2288 | clevermous | 282 | |
283 | align 4 |
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6333 | serge | 284 | proc create_process stdcall, app_size:dword |
2288 | clevermous | 285 | locals |
5130 | serge | 286 | process dd ? |
2288 | clevermous | 287 | app_tabs dd ? |
288 | endl |
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289 | |||
5130 | serge | 290 | push ebx |
291 | push esi |
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292 | push edi |
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293 | |||
2288 | clevermous | 294 | xor eax, eax |
5130 | serge | 295 | mov [process], eax |
2288 | clevermous | 296 | |
297 | mov eax, [app_size] |
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6333 | serge | 298 | add eax, 0x3FFFFF |
299 | shr eax, 22 |
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300 | mov [app_tabs], eax |
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2288 | clevermous | 301 | |
5130 | serge | 302 | stdcall kernel_alloc, 0x2000 |
2288 | clevermous | 303 | test eax, eax |
304 | jz .fail |
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5130 | serge | 305 | mov [process], eax |
2288 | clevermous | 306 | |
9715 | Doczom | 307 | lea edi, [eax + PROC.heap_lock] |
308 | mov ecx, (PROC.ht_free - PROC.heap_lock)/4 |
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5130 | serge | 309 | |
310 | list_init eax |
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311 | add eax, PROC.thr_list |
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312 | list_init eax |
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313 | |||
2288 | clevermous | 314 | xor eax, eax |
315 | cld |
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316 | rep stosd |
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317 | |||
5595 | serge | 318 | mov [edi], dword (PROC.pdt_0 - PROC.htab)/4 - 3 |
319 | mov [edi+4], dword 3 ;reserve handles for stdin stdout and stderr |
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5202 | serge | 320 | mov ecx, (PROC.pdt_0 - PROC.htab)/4 |
5595 | serge | 321 | add edi, 8 |
322 | inc eax |
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5202 | serge | 323 | @@: |
324 | stosd |
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325 | inc eax |
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326 | cmp eax, ecx |
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327 | jbe @B |
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328 | |||
5130 | serge | 329 | mov eax, edi |
330 | call get_pg_addr |
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9900 | Doczom | 331 | mov [edi - PAGE_SIZE + PROC.pdt_0_phys], eax |
5130 | serge | 332 | |
2288 | clevermous | 333 | mov ecx, (OS_BASE shr 20)/4 |
5130 | serge | 334 | xor eax, eax |
335 | rep stosd |
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336 | |||
337 | mov ecx, (OS_BASE shr 20)/4 |
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9715 | Doczom | 338 | mov esi, sys_proc + PROC.pdt_0 + (OS_BASE shr 20) |
2288 | clevermous | 339 | rep movsd |
340 | |||
9715 | Doczom | 341 | mov eax, [edi - 8192 + PROC.pdt_0_phys] |
5356 | serge | 342 | or eax, PG_SWR |
9900 | Doczom | 343 | mov [edi - PAGE_SIZE + (page_tabs shr 20)], eax |
2288 | clevermous | 344 | |
9900 | Doczom | 345 | lea edx, [edi - PAGE_SIZE] |
6333 | serge | 346 | mov esi, [app_tabs] |
2288 | clevermous | 347 | |
6333 | serge | 348 | .alloc_page_dir: |
2288 | clevermous | 349 | call alloc_page |
350 | test eax, eax |
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351 | jz .fail |
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6333 | serge | 352 | or eax, PG_UWR |
353 | mov [edx], eax |
||
2288 | clevermous | 354 | |
6333 | serge | 355 | mov edi, [tmp_task_ptab] |
356 | stdcall map_page, edi, eax, PG_SWR |
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9932 | Doczom | 357 | mov ecx, PAGE_SIZE/4 |
2288 | clevermous | 358 | xor eax, eax |
359 | rep stosd |
||
360 | |||
6333 | serge | 361 | add edx, 4 |
362 | dec esi |
||
363 | jnz .alloc_page_dir |
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2288 | clevermous | 364 | |
6333 | serge | 365 | stdcall map_page, [tmp_task_ptab], 0, PG_UNMAP |
5130 | serge | 366 | mov eax, [process] |
367 | |||
368 | pop edi |
||
369 | pop esi |
||
370 | pop ebx |
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2288 | clevermous | 371 | ret |
372 | .fail: |
||
6333 | serge | 373 | mov ecx, [process] |
374 | jcxz @F |
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375 | |||
376 | call destroy_process |
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2288 | clevermous | 377 | @@: |
378 | xor eax, eax |
||
5130 | serge | 379 | pop edi |
380 | pop esi |
||
381 | pop ebx |
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2288 | clevermous | 382 | ret |
383 | endp |
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384 | |||
385 | align 4 |
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386 | proc destroy_page_table stdcall, pg_tab:dword |
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387 | |||
388 | push esi |
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389 | |||
390 | mov esi, [pg_tab] |
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391 | mov ecx, 1024 |
||
392 | .free: |
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393 | mov eax, [esi] |
||
394 | test eax, 1 |
||
395 | jz .next |
||
5130 | serge | 396 | test eax, 2 |
397 | jz .next |
||
2288 | clevermous | 398 | test eax, 1 shl 9 |
399 | jnz .next ;skip shared pages |
||
400 | call free_page |
||
401 | .next: |
||
402 | add esi, 4 |
||
403 | dec ecx |
||
404 | jnz .free |
||
405 | pop esi |
||
406 | ret |
||
407 | endp |
||
408 | |||
409 | align 4 |
||
5130 | serge | 410 | destroy_process: ;fastcall ecx= ptr to process |
2288 | clevermous | 411 | |
5130 | serge | 412 | lea eax, [ecx+PROC.thr_list] |
413 | cmp eax, [eax+LHEAD.next] |
||
414 | jne .exit |
||
2288 | clevermous | 415 | |
5130 | serge | 416 | align 4 |
417 | .internal: |
||
418 | push ecx |
||
2288 | clevermous | 419 | |
6263 | serge | 420 | mov esi, ecx |
421 | list_del esi |
||
422 | |||
9715 | Doczom | 423 | mov esi, [esi + PROC.dlls_list_ptr] |
5130 | serge | 424 | call destroy_all_hdlls |
2288 | clevermous | 425 | |
5130 | serge | 426 | mov esi, [esp] |
427 | add esi, PROC.pdt_0 |
||
428 | mov edi, (0x80000000 shr 20)/4 |
||
2288 | clevermous | 429 | .destroy: |
430 | mov eax, [esi] |
||
431 | test eax, 1 |
||
432 | jz .next |
||
9900 | Doczom | 433 | and eax, -PAGE_SIZE |
5356 | serge | 434 | stdcall map_page, [tmp_task_ptab], eax, PG_SWR |
2288 | clevermous | 435 | stdcall destroy_page_table, [tmp_task_ptab] |
436 | mov eax, [esi] |
||
437 | call free_page |
||
438 | .next: |
||
439 | add esi, 4 |
||
440 | dec edi |
||
441 | jnz .destroy |
||
442 | |||
5130 | serge | 443 | call kernel_free ;ecx still in stack |
444 | stdcall map_page, [tmp_task_ptab], 0, PG_UNMAP |
||
2288 | clevermous | 445 | .exit: |
446 | ret |
||
447 | |||
448 | align 4 |
||
449 | get_pid: |
||
9613 | Doczom | 450 | mov eax, [current_slot] |
9715 | Doczom | 451 | mov eax, [eax + APPDATA.tid] |
2288 | clevermous | 452 | ret |
453 | |||
454 | pid_to_slot: |
||
455 | ;Input: |
||
456 | ; eax - pid of process |
||
457 | ;Output: |
||
458 | ; eax - slot of process or 0 if process don't exists |
||
459 | ;Search process by PID. |
||
460 | push ebx |
||
461 | push ecx |
||
8866 | rgimad | 462 | mov ebx, [thread_count] |
9709 | Doczom | 463 | shl ebx, BSF sizeof.APPDATA ; multiply by size |
8851 | rgimad | 464 | ; skip first process in the task table |
9709 | Doczom | 465 | mov ecx, sizeof.APPDATA |
2288 | clevermous | 466 | |
467 | .loop: |
||
8851 | rgimad | 468 | ;ecx = offset of current process info entry |
469 | ;ebx = maximum permitted offset |
||
9709 | Doczom | 470 | cmp [SLOT_BASE + ecx + APPDATA.state], TSTATE_FREE |
2288 | clevermous | 471 | jz .endloop ;skip empty slots |
9715 | Doczom | 472 | cmp [SLOT_BASE + ecx + APPDATA.tid], eax |
9692 | Doczom | 473 | jz .pid_found |
2288 | clevermous | 474 | .endloop: |
9709 | Doczom | 475 | add ecx, sizeof.APPDATA |
2288 | clevermous | 476 | cmp ecx, ebx |
477 | jle .loop |
||
478 | |||
479 | pop ecx |
||
480 | pop ebx |
||
481 | xor eax, eax |
||
482 | ret |
||
483 | |||
484 | .pid_found: |
||
9709 | Doczom | 485 | shr ecx, BSF sizeof.APPDATA ; divide by size |
2288 | clevermous | 486 | mov eax, ecx ;convert offset to index of slot |
487 | pop ecx |
||
488 | pop ebx |
||
489 | ret |
||
490 | |||
5130 | serge | 491 | |
2288 | clevermous | 492 | align 4 |
493 | proc read_process_memory |
||
494 | ;Input: |
||
495 | ; eax - process slot |
||
496 | ; ecx - buffer address |
||
497 | ; edx - buffer size |
||
498 | ; esi - start address in other process |
||
499 | ;Output: |
||
500 | ; eax - number of bytes read. |
||
501 | locals |
||
502 | slot dd ? |
||
503 | buff dd ? |
||
504 | r_count dd ? |
||
505 | offset dd ? |
||
506 | tmp_r_cnt dd ? |
||
507 | endl |
||
508 | |||
509 | mov [slot], eax |
||
510 | mov [buff], ecx |
||
511 | and [r_count], 0 |
||
512 | mov [tmp_r_cnt], edx |
||
513 | mov [offset], esi |
||
514 | |||
515 | pushad |
||
516 | .read_mem: |
||
517 | mov edx, [offset] |
||
518 | mov ebx, [tmp_r_cnt] |
||
519 | |||
520 | mov ecx, 0x400000 |
||
521 | and edx, 0x3FFFFF |
||
522 | sub ecx, edx |
||
523 | cmp ecx, ebx |
||
524 | jbe @f |
||
525 | mov ecx, ebx |
||
526 | @@: |
||
527 | cmp ecx, 0x8000 |
||
528 | jna @F |
||
529 | mov ecx, 0x8000 |
||
530 | @@: |
||
531 | mov ebx, [offset] |
||
532 | |||
533 | push ecx |
||
534 | stdcall map_memEx, [proc_mem_map], \ |
||
5356 | serge | 535 | [slot], ebx, ecx, PG_READ |
2288 | clevermous | 536 | pop ecx |
537 | |||
538 | mov esi, [offset] |
||
539 | and esi, 0xfff |
||
540 | sub eax, esi |
||
541 | jbe .ret |
||
542 | cmp ecx, eax |
||
543 | jbe @f |
||
544 | mov ecx, eax |
||
545 | mov [tmp_r_cnt], eax |
||
546 | @@: |
||
547 | add esi, [proc_mem_map] |
||
548 | mov edi, [buff] |
||
549 | mov edx, ecx |
||
550 | rep movsb |
||
551 | add [r_count], edx |
||
552 | |||
553 | add [offset], edx |
||
554 | sub [tmp_r_cnt], edx |
||
555 | jnz .read_mem |
||
556 | .ret: |
||
557 | popad |
||
558 | mov eax, [r_count] |
||
559 | ret |
||
560 | endp |
||
561 | |||
562 | align 4 |
||
563 | proc write_process_memory |
||
564 | ;Input: |
||
565 | ; eax - process slot |
||
566 | ; ecx - buffer address |
||
567 | ; edx - buffer size |
||
568 | ; esi - start address in other process |
||
569 | ;Output: |
||
570 | ; eax - number of bytes written |
||
571 | |||
572 | locals |
||
573 | slot dd ? |
||
574 | buff dd ? |
||
575 | w_count dd ? |
||
576 | offset dd ? |
||
577 | tmp_w_cnt dd ? |
||
578 | endl |
||
579 | |||
580 | mov [slot], eax |
||
581 | mov [buff], ecx |
||
582 | and [w_count], 0 |
||
583 | mov [tmp_w_cnt], edx |
||
584 | mov [offset], esi |
||
585 | |||
586 | pushad |
||
587 | .read_mem: |
||
588 | mov edx, [offset] |
||
589 | mov ebx, [tmp_w_cnt] |
||
590 | |||
591 | mov ecx, 0x400000 |
||
592 | and edx, 0x3FFFFF |
||
593 | sub ecx, edx |
||
594 | cmp ecx, ebx |
||
595 | jbe @f |
||
596 | mov ecx, ebx |
||
597 | @@: |
||
598 | cmp ecx, 0x8000 |
||
599 | jna @F |
||
600 | mov ecx, 0x8000 |
||
601 | @@: |
||
602 | mov ebx, [offset] |
||
603 | push ecx |
||
604 | stdcall map_memEx, [proc_mem_map], \ |
||
5356 | serge | 605 | [slot], ebx, ecx, PG_SWR |
2288 | clevermous | 606 | pop ecx |
607 | |||
608 | mov edi, [offset] |
||
609 | and edi, 0xfff |
||
610 | sub eax, edi |
||
611 | jbe .ret |
||
612 | cmp ecx, eax |
||
613 | jbe @f |
||
614 | mov ecx, eax |
||
615 | mov [tmp_w_cnt], eax |
||
616 | @@: |
||
617 | add edi, [proc_mem_map] |
||
618 | mov esi, [buff] |
||
619 | mov edx, ecx |
||
620 | rep movsb |
||
621 | |||
622 | add [w_count], edx |
||
623 | add [offset], edx |
||
624 | sub [tmp_w_cnt], edx |
||
625 | jnz .read_mem |
||
626 | .ret: |
||
627 | popad |
||
628 | mov eax, [w_count] |
||
629 | ret |
||
630 | endp |
||
631 | |||
4105 | Serge | 632 | ;ebx = 1 - kernel thread |
633 | ;ecx=thread entry point |
||
634 | ;edx=thread stack pointer |
||
635 | ;creation flags 0x01 - debugged |
||
636 | ; 0x02 - kernel |
||
637 | |||
2288 | clevermous | 638 | align 4 |
639 | proc new_sys_threads |
||
640 | locals |
||
4105 | Serge | 641 | slot dd ? |
642 | flags dd ? |
||
2288 | clevermous | 643 | app_cmdline dd ? ;0x00 |
644 | app_path dd ? ;0x04 |
||
645 | app_eip dd ? ;0x08 |
||
646 | app_esp dd ? ;0x0C |
||
647 | app_mem dd ? ;0x10 |
||
648 | endl |
||
649 | |||
4105 | Serge | 650 | shl ebx, 1 |
651 | mov [flags], ebx |
||
2288 | clevermous | 652 | |
653 | xor eax, eax |
||
654 | mov [app_eip], ecx |
||
655 | mov [app_cmdline], eax |
||
656 | mov [app_esp], edx |
||
657 | mov [app_path], eax |
||
4105 | Serge | 658 | |
3534 | clevermous | 659 | call lock_application_table |
2288 | clevermous | 660 | |
5130 | serge | 661 | call alloc_thread_slot |
2288 | clevermous | 662 | test eax, eax |
663 | jz .failed |
||
664 | |||
665 | mov [slot], eax |
||
666 | |||
667 | mov esi, [current_slot] |
||
9941 | Doczom | 668 | mov ebx, esi ;ebx=esi - pointer to information about current thread |
2288 | clevermous | 669 | |
670 | mov edi, eax |
||
9715 | Doczom | 671 | shl edi, BSF sizeof.APPDATA |
2288 | clevermous | 672 | add edi, SLOT_BASE |
9941 | Doczom | 673 | mov edx, edi ;edx=edi - pointer to infomation about new thread |
8093 | dunkaist | 674 | mov ecx, sizeof.APPDATA/4 |
2288 | clevermous | 675 | xor eax, eax |
676 | cld |
||
9941 | Doczom | 677 | rep stosd ;clean information about new thread |
2288 | clevermous | 678 | mov esi, ebx |
679 | mov edi, edx |
||
680 | mov ecx, 11 |
||
681 | rep movsb ;copy process name |
||
682 | |||
683 | |||
9715 | Doczom | 684 | mov eax, [ebx + APPDATA.tls_base] |
2288 | clevermous | 685 | test eax, eax |
686 | jz @F |
||
687 | |||
688 | push edx |
||
9900 | Doczom | 689 | stdcall user_alloc, PAGE_SIZE |
2288 | clevermous | 690 | pop edx |
691 | test eax, eax |
||
692 | jz .failed1;eax=0 |
||
693 | @@: |
||
9715 | Doczom | 694 | mov [edx + APPDATA.tls_base], eax |
2288 | clevermous | 695 | |
9715 | Doczom | 696 | mov eax, [ebx + APPDATA.process] |
697 | mov [edx + APPDATA.process], eax |
||
6090 | serge | 698 | |
9715 | Doczom | 699 | lea ebx, [edx + APPDATA.list] |
700 | lea ecx, [eax + PROC.thr_list] |
||
6090 | serge | 701 | list_add_tail ebx, ecx ;add thread to process child's list |
702 | |||
2288 | clevermous | 703 | lea eax, [app_cmdline] |
6333 | serge | 704 | stdcall set_app_params , [slot], eax, [flags] |
2288 | clevermous | 705 | |
706 | mov eax, [process_number] ;set result |
||
3534 | clevermous | 707 | call unlock_application_table |
2288 | clevermous | 708 | ret |
709 | .failed: |
||
710 | xor eax, eax |
||
711 | .failed1: |
||
3534 | clevermous | 712 | call unlock_application_table |
2288 | clevermous | 713 | dec eax ;-1 |
714 | ret |
||
715 | endp |
||
716 | |||
6333 | serge | 717 | proc map_process_image stdcall, img_size:dword, file_base:dword, file_size:dword |
718 | |||
719 | mov edx, [img_size] |
||
720 | mov esi, [file_base] |
||
721 | mov ecx, [file_size] |
||
9900 | Doczom | 722 | add edx, PAGE_SIZE-1 |
723 | add ecx, PAGE_SIZE-1 |
||
6333 | serge | 724 | shr edx, 12 ; total pages |
725 | shr ecx, 12 ; image pages |
||
726 | |||
727 | mov edi, page_tabs |
||
728 | shr esi, 10 |
||
729 | add esi, edi |
||
730 | |||
731 | .map_image: |
||
732 | lodsd |
||
9900 | Doczom | 733 | and eax, -PAGE_SIZE |
6333 | serge | 734 | or eax, PG_UWR |
735 | stosd |
||
736 | dec edx |
||
737 | loop .map_image |
||
738 | |||
739 | test edx, edx |
||
740 | jz .done |
||
741 | .map_bss: |
||
742 | call alloc_page |
||
743 | test eax, eax |
||
744 | jz .fail |
||
745 | |||
746 | or eax, PG_UWR |
||
747 | stosd |
||
748 | dec edx |
||
749 | jnz .map_bss |
||
750 | |||
751 | mov edi, [file_size] |
||
752 | mov ecx, [img_size] |
||
9900 | Doczom | 753 | add edi, PAGE_SIZE-1 |
754 | and edi, -PAGE_SIZE |
||
755 | add ecx, PAGE_SIZE-1 |
||
756 | and ecx, -PAGE_SIZE |
||
6333 | serge | 757 | sub ecx, edi |
758 | shr ecx, 2 |
||
759 | xor eax, eax |
||
760 | rep stosd |
||
761 | .done: |
||
762 | .fail: |
||
763 | ret |
||
764 | endp |
||
765 | |||
2288 | clevermous | 766 | align 4 |
6333 | serge | 767 | common_app_entry: |
768 | mov ebp, [current_slot] |
||
9715 | Doczom | 769 | mov ebp, [ebp + APPDATA.exec_params] |
6333 | serge | 770 | test ebp, ebp |
771 | jz .exit |
||
8709 | Coldy | 772 | ; APPDATA.exec_params have first thread only, |
10051 | ace_dent | 773 | ; so second and next threads don't get here (they jump to .exit) |
9715 | Doczom | 774 | stdcall map_process_image, [ebp + APP_HDR._emem],\ |
775 | [ebp + APP_HDR.img_base], [ebp + APP_HDR.img_size] |
||
776 | mov esi, [ebp + APP_HDR.path_string] |
||
777 | mov edi, [ebp + APP_HDR.path] |
||
778 | mov ecx, [ebp + APP_HDR.filename_size] |
||
6758 | pathoswith | 779 | cmp ecx, 1023 |
780 | jc @f |
||
781 | mov ecx, 1022 |
||
782 | @@: |
||
6502 | pathoswith | 783 | push esi |
784 | test edi, edi |
||
785 | jz @f |
||
9715 | Doczom | 786 | stdcall is_region_userspace, edi, [ebp + APP_HDR.filename_size] |
9045 | dunkaist | 787 | jnz @f |
6758 | pathoswith | 788 | mov al, '/' |
789 | stosb |
||
6502 | pathoswith | 790 | rep movsb |
791 | mov byte [edi], 0 |
||
6338 | serge | 792 | @@: |
6502 | pathoswith | 793 | call kernel_free |
9715 | Doczom | 794 | mov edi, [ebp + APP_HDR.cmdline] |
6333 | serge | 795 | test edi, edi |
796 | jz .check_tls_header |
||
9715 | Doczom | 797 | lea esi, [ebp + sizeof.APP_HDR] |
798 | mov ecx, [ebp + APP_HDR.cmdline_size] |
||
6333 | serge | 799 | cmp ecx, 256 |
800 | jb .copy_cmdline |
||
9715 | Doczom | 801 | mov edi, [ebp + APP_HDR._emem] |
9900 | Doczom | 802 | add edi, PAGE_SIZE-1 |
803 | and edi, -PAGE_SIZE |
||
6333 | serge | 804 | sub edi, ecx |
805 | dec edi |
||
10008 | Doczom | 806 | |
6333 | serge | 807 | mov [APP_HEADER_01_.i_param], edi |
808 | .copy_cmdline: |
||
8593 | rgimad | 809 | inc ecx ; keep in mind about 0 in the end |
810 | stdcall is_region_userspace, edi, ecx |
||
9045 | dunkaist | 811 | jnz .check_tls_header |
8593 | rgimad | 812 | dec ecx |
6333 | serge | 813 | rep movsb |
6502 | pathoswith | 814 | mov byte [edi], 0 |
6333 | serge | 815 | .check_tls_header: |
816 | cmp word [6], '02' |
||
8671 | Coldy | 817 | jne .try_load_dll ;.cleanup |
2288 | clevermous | 818 | call init_heap |
9900 | Doczom | 819 | stdcall user_alloc, PAGE_SIZE |
2288 | clevermous | 820 | mov edx, [current_slot] |
9715 | Doczom | 821 | mov [edx + APPDATA.tls_base], eax |
2288 | clevermous | 822 | mov [tls_data_l+2], ax |
823 | shr eax, 16 |
||
824 | mov [tls_data_l+4], al |
||
825 | mov [tls_data_l+7], ah |
||
826 | mov dx, app_tls |
||
10051 | ace_dent | 827 | mov fs, dx |
828 | ; { Patch by Coldy, For DLL autoload |
||
829 | .try_load_dll: |
||
830 | ; Test app header version |
||
9715 | Doczom | 831 | mov ecx, dword[ebp + APP_HDR.img_base] |
8671 | Coldy | 832 | cmp dword[ecx+8], 2 |
833 | jne .cleanup |
||
8709 | Coldy | 834 | ;if APP_HEADER.version = 2 => load lib/dll.obj & change eip to APP_STARTUP_THUNK |
8671 | Coldy | 835 | DEBUGF 1, 'K : App header version 2\n' |
836 | stdcall load_library, dll_lib_path, 0 |
||
837 | cmp eax, 0 |
||
838 | jne @f |
||
10051 | ace_dent | 839 | ; Something went wrong (TODO: Next 2 line is code copy after .cleanup) |
8671 | Coldy | 840 | stdcall free_kernel_space, [ebp+APP_HDR.img_base] |
841 | stdcall kernel_free, ebp |
||
8709 | Coldy | 842 | DEBUGF 1, 'K : DLL.OBJ not found! Terminate application!\n' |
8671 | Coldy | 843 | mov ebx, dll_error_msg |
844 | mov ebp, notifyapp |
||
845 | call fs_execute_from_sysdir_param |
||
10051 | ace_dent | 846 | ; Terminate process (TODO: Need jump to .cleanup after sys_end ?) |
8671 | Coldy | 847 | call sys_end |
10051 | ace_dent | 848 | |
849 | @@: |
||
8709 | Coldy | 850 | ; Find APP_STARTUP_THUNK in DLL.OBJ |
8671 | Coldy | 851 | sub eax, 4 |
8709 | Coldy | 852 | mov eax, [eax] |
10051 | ace_dent | 853 | |
8671 | Coldy | 854 | ;.change_eip: |
855 | mov ecx, [current_slot] |
||
9715 | Doczom | 856 | mov ecx, [ecx + APPDATA.pl0_stack] |
8671 | Coldy | 857 | mov [ecx+REG_EIP], eax |
10051 | ace_dent | 858 | |
8671 | Coldy | 859 | ; } End patch by Coldy, For DLL autoload |
6333 | serge | 860 | .cleanup: |
861 | stdcall free_kernel_space, [ebp+APP_HDR.img_base] |
||
862 | stdcall kernel_free, ebp |
||
6345 | serge | 863 | mov ebx, [current_slot] |
9715 | Doczom | 864 | cmp [ebx + APPDATA.debugger_slot], 0 |
6345 | serge | 865 | je .exit |
9709 | Doczom | 866 | mov [ebx + APPDATA.state], TSTATE_RUN_SUSPENDED |
9715 | Doczom | 867 | mov [ebx + APPDATA.state], TSTATE_RUN_SUSPENDED |
6345 | serge | 868 | call change_task |
6333 | serge | 869 | .exit: |
2288 | clevermous | 870 | popad |
871 | iretd |
||
872 | |||
7136 | dunkaist | 873 | EFL_IF = 0x0200 |
874 | EFL_IOPL1 = 0x1000 |
||
875 | EFL_IOPL2 = 0x2000 |
||
876 | EFL_IOPL3 = 0x3000 |
||
2288 | clevermous | 877 | |
878 | align 4 |
||
6333 | serge | 879 | proc set_app_params stdcall,slot:dword, params:dword, flags:dword |
2288 | clevermous | 880 | |
881 | locals |
||
882 | pl0_stack dd ? |
||
883 | endl |
||
884 | |||
7124 | dunkaist | 885 | mov eax, [xsave_area_size] |
886 | add eax, RING0_STACK_SIZE |
||
887 | stdcall kernel_alloc, eax |
||
2288 | clevermous | 888 | mov [pl0_stack], eax |
889 | |||
890 | lea edi, [eax+RING0_STACK_SIZE] |
||
891 | |||
892 | mov eax, [slot] |
||
893 | mov ebx, eax |
||
894 | |||
9709 | Doczom | 895 | shl eax, BSF sizeof.APPDATA |
9715 | Doczom | 896 | mov [SLOT_BASE + eax + APPDATA.fpu_state], edi |
897 | mov [SLOT_BASE + eax + APPDATA.exc_handler], 0 |
||
898 | mov [SLOT_BASE + eax + APPDATA.except_mask], 0 |
||
899 | mov [SLOT_BASE + eax + APPDATA.terminate_protection], 80000001h |
||
2288 | clevermous | 900 | |
901 | ;set default io permission map |
||
9715 | Doczom | 902 | mov ecx, [SLOT_BASE + sizeof.APPDATA + APPDATA.io_map] |
903 | mov [SLOT_BASE + eax + APPDATA.io_map], ecx |
||
904 | mov ecx, [SLOT_BASE + sizeof.APPDATA + APPDATA.io_map + 4] |
||
905 | mov [SLOT_BASE + eax + APPDATA.io_map + 4], ecx |
||
2288 | clevermous | 906 | |
907 | mov esi, fpu_data |
||
7165 | clevermous | 908 | mov ecx, [xsave_area_size] |
909 | add ecx, 3 |
||
910 | shr ecx, 2 |
||
2288 | clevermous | 911 | rep movsd |
912 | |||
8866 | rgimad | 913 | cmp [thread_count], ebx |
8867 | rgimad | 914 | adc [thread_count], 0 ; update number of processes |
9709 | Doczom | 915 | shl ebx, BSF sizeof.APPDATA |
9715 | Doczom | 916 | lea edx, [SLOT_BASE + ebx + APP_EV_OFFSET] |
917 | mov [SLOT_BASE + ebx + APPDATA.fd_ev], edx |
||
918 | mov [SLOT_BASE + ebx + APPDATA.bk_ev], edx |
||
2288 | clevermous | 919 | |
9715 | Doczom | 920 | add edx, APP_OBJ_OFFSET - APP_EV_OFFSET |
921 | mov [SLOT_BASE + ebx + APPDATA.fd_obj], edx |
||
922 | mov [SLOT_BASE + ebx + APPDATA.bk_obj], edx |
||
2288 | clevermous | 923 | |
924 | mov eax, [pl0_stack] |
||
9715 | Doczom | 925 | mov [SLOT_BASE + ebx + APPDATA.pl0_stack], eax |
2288 | clevermous | 926 | add eax, RING0_STACK_SIZE |
9715 | Doczom | 927 | mov [SLOT_BASE + ebx + APPDATA.saved_esp0], eax |
2288 | clevermous | 928 | |
929 | push ebx |
||
9925 | Doczom | 930 | stdcall kernel_alloc, maxPathLength ;TODO |
2288 | clevermous | 931 | pop ebx |
932 | mov esi, [current_slot] |
||
9715 | Doczom | 933 | mov esi, [esi + APPDATA.cur_dir] |
6502 | pathoswith | 934 | mov ecx, maxPathLength/4 |
2288 | clevermous | 935 | mov edi, eax |
9715 | Doczom | 936 | mov [SLOT_BASE + ebx + APPDATA.cur_dir], eax |
2288 | clevermous | 937 | rep movsd |
938 | |||
9715 | Doczom | 939 | mov [SLOT_BASE + ebx + APPDATA.event_mask], dword 1+2+4;set default event flags (see 40 function) |
9613 | Doczom | 940 | inc dword [process_number] |
941 | mov eax, [process_number] |
||
9715 | Doczom | 942 | mov [SLOT_BASE + ebx + APPDATA.tid], eax ;set TID |
2288 | clevermous | 943 | |
9608 | Doczom | 944 | mov eax, [slot] |
9715 | Doczom | 945 | mov [SLOT_BASE + ebx + APPDATA.wnd_number], al |
9930 | Doczom | 946 | ;mov ebx, eax |
947 | shl eax, BSF sizeof.WDATA |
||
948 | add eax, window_data |
||
949 | mov ecx, eax |
||
950 | mov [SLOT_BASE + ebx + APPDATA.window], eax |
||
951 | mov [eax + WDATA.thread], ebx |
||
952 | add [eax + WDATA.thread], SLOT_BASE |
||
2288 | clevermous | 953 | |
954 | ; set window state to 'normal' (non-minimized/maximized/rolled-up) state |
||
9930 | Doczom | 955 | mov [eax + WDATA.fl_wstate], WSTATE_NORMAL + WSTATE_USED |
956 | mov [eax + WDATA.fl_redraw], WSTATE_REDRAW |
||
2288 | clevermous | 957 | |
9930 | Doczom | 958 | mov edx, [def_cursor] |
959 | mov [eax + WDATA.cursor], edx |
||
960 | |||
2288 | clevermous | 961 | ;set draw data to full screen |
962 | xor eax, eax |
||
10002 | Jurgen | 963 | mov [SLOT_BASE + ebx + APPDATA.def_priority], al |
9930 | Doczom | 964 | mov [ecx + WDATA.draw_data.left], eax |
965 | mov [ecx + WDATA.draw_data.top], eax |
||
5350 | serge | 966 | mov eax, [screen_workarea.right] |
9930 | Doczom | 967 | mov [ecx + WDATA.draw_data.right], eax |
5350 | serge | 968 | mov eax, [screen_workarea.bottom] |
9930 | Doczom | 969 | mov [ecx + WDATA.draw_data.bottom], eax |
2288 | clevermous | 970 | |
971 | mov ebx, [pl0_stack] |
||
972 | mov esi, [params] |
||
9715 | Doczom | 973 | lea ecx, [ebx + REG_EIP] |
2288 | clevermous | 974 | xor eax, eax |
975 | |||
9715 | Doczom | 976 | mov [ebx + REG_RET], dword common_app_entry |
977 | mov [ebx + REG_EDI], eax |
||
978 | mov [ebx + REG_ESI], eax |
||
979 | mov [ebx + REG_EBP], eax |
||
980 | mov [ebx + REG_ESP], ecx;ebx+REG_EIP |
||
981 | mov [ebx + REG_EBX], eax |
||
982 | mov [ebx + REG_EDX], eax |
||
983 | mov [ebx + REG_ECX], eax |
||
984 | mov [ebx + REG_EAX], eax |
||
2288 | clevermous | 985 | |
9715 | Doczom | 986 | mov eax, [esi + APP_HDR.eip] |
987 | mov [ebx + REG_EIP], eax |
||
988 | mov [ebx + REG_CS], dword app_code |
||
3534 | clevermous | 989 | mov ecx, USER_PRIORITY |
4105 | Serge | 990 | |
991 | test byte [flags], 2 |
||
992 | jz @F |
||
993 | |||
9715 | Doczom | 994 | mov [ebx + REG_CS], dword os_code ; kernel thread |
3534 | clevermous | 995 | mov ecx, MAX_PRIORITY |
3325 | clevermous | 996 | @@: |
9715 | Doczom | 997 | mov [ebx + REG_EFLAGS], dword EFL_IOPL1+EFL_IF |
2288 | clevermous | 998 | |
9715 | Doczom | 999 | mov eax, [esi + APP_HDR.esp] |
1000 | mov [ebx + REG_APP_ESP], eax |
||
1001 | mov [ebx + REG_SS], dword app_data |
||
2288 | clevermous | 1002 | |
9715 | Doczom | 1003 | lea edx, [ebx + REG_RET] |
2288 | clevermous | 1004 | mov ebx, [slot] |
9709 | Doczom | 1005 | shl ebx, BSF sizeof.APPDATA |
9715 | Doczom | 1006 | mov [SLOT_BASE + ebx + APPDATA.saved_esp], edx |
2288 | clevermous | 1007 | |
3534 | clevermous | 1008 | xor edx, edx; process state - running |
2288 | clevermous | 1009 | ; set if debuggee |
1010 | test byte [flags], 1 |
||
1011 | jz .no_debug |
||
8869 | rgimad | 1012 | mov eax, [current_slot_idx] |
9715 | Doczom | 1013 | mov [SLOT_BASE + ebx + APPDATA.debugger_slot], eax |
2288 | clevermous | 1014 | .no_debug: |
9709 | Doczom | 1015 | mov [SLOT_BASE + ebx + APPDATA.state], dl |
9715 | Doczom | 1016 | lea edx, [SLOT_BASE + ebx] |
3534 | clevermous | 1017 | call scheduler_add_thread |
2288 | clevermous | 1018 | ret |
1019 | endp |
||
1020 | |||
1021 | align 4 |
||
1022 | get_stack_base: |
||
1023 | mov eax, [current_slot] |
||
9715 | Doczom | 1024 | mov eax, [eax + APPDATA.pl0_stack] |
2288 | clevermous | 1025 | ret |
1026 | |||
9832 | turbocat | 1027 | align 4 |
1028 | get_curr_slot: |
||
1029 | mov eax, [current_slot] |
||
1030 | ret |
||
2288 | clevermous | 1031 | |
9911 | Doczom | 1032 | pid_to_appdata: |
1033 | ;Input: |
||
1034 | ; eax - pid of process |
||
1035 | ;Output: |
||
1036 | ; eax - 0 - not found or pointer on APPDATA |
||
1037 | push ebx |
||
1038 | push ecx |
||
1039 | mov ebx, [thread_count] |
||
1040 | shl ebx, BSF sizeof.APPDATA ; multiply by size |
||
1041 | ; skip first process in the task table |
||
9932 | Doczom | 1042 | mov ecx, SLOT_BASE |
1043 | add ebx, ecx |
||
9911 | Doczom | 1044 | .loop: |
1045 | add ecx, sizeof.APPDATA |
||
9932 | Doczom | 1046 | cmp [ecx + APPDATA.state], TSTATE_FREE |
9925 | Doczom | 1047 | jz @f ;skip empty slots |
9932 | Doczom | 1048 | cmp [ecx + APPDATA.tid], eax |
9911 | Doczom | 1049 | jz .pid_found |
9925 | Doczom | 1050 | @@: |
9911 | Doczom | 1051 | cmp ecx, ebx |
1052 | jb .loop |
||
1053 | |||
1054 | pop ecx |
||
1055 | pop ebx |
||
1056 | xor eax, eax |
||
1057 | ret |
||
1058 | .pid_found: |
||
1059 | mov eax, ecx |
||
1060 | pop ecx |
||
1061 | pop ebx |
||
1062 | ret |
||
1063 | |||
2288 | clevermous | 1064 | include "debug.inc"> |