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Rev | Author | Line No. | Line |
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357 | serge | 1 | GREEDY_KERNEL equ 0 |
164 | serge | 2 | |
170 | serge | 3 | |
164 | serge | 4 | struc APP_HEADER_00 |
5 | { .banner dq ? |
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6 | .version dd ? ;+8 |
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7 | .start dd ? ;+12 |
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8 | .i_end dd ? ;+16 |
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9 | .mem_size dd ? ;+20 |
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10 | .i_param dd ? ;+24 |
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11 | } |
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12 | |||
13 | struc APP_HEADER_01 |
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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 | .stack_top dd ? ;+24 |
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20 | .i_param dd ? ;+28 |
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21 | .i_icon dd ? ;+32 |
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22 | } |
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23 | |||
237 | serge | 24 | |
25 | struc APP_PARAMS |
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26 | { .app_cmdline ;0x00 |
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27 | .app_path ;0x04 |
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28 | .app_eip ;0x08 |
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29 | .app_esp ;0x0C |
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30 | .app_mem ;0x10 |
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31 | } |
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32 | |||
33 | macro _clear_ op |
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34 | { mov ecx, op/4 |
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35 | xor eax, eax |
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36 | cld |
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37 | rep stosd |
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38 | } |
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39 | |||
363 | serge | 40 | |
164 | serge | 41 | align 4 |
363 | serge | 42 | proc fs_execute |
43 | |||
44 | ;fn_read:dword, file_size:dword, cluster:dword |
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45 | |||
46 | ; ebx - cmdline |
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47 | ; edx - flags |
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48 | ; ebp - full filename |
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49 | ; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it |
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50 | |||
237 | serge | 51 | locals |
363 | serge | 52 | cmdline rd 64 ;256/4 |
53 | filename rd 256 ;1024/4 |
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54 | flags dd ? |
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55 | |||
237 | serge | 56 | save_cr3 dd ? |
57 | slot dd ? |
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58 | slot_base dd ? |
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59 | file_base dd ? |
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60 | file_size dd ? |
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363 | serge | 61 | ;app header data |
62 | hdr_cmdline dd ? ;0x00 |
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63 | hdr_path dd ? ;0x04 |
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64 | hdr_eip dd ? ;0x08 |
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65 | hdr_esp dd ? ;0x0C |
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66 | hdr_mem dd ? ;0x10 |
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67 | hdr_i_end dd ? ;0x14 |
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237 | serge | 68 | endl |
164 | serge | 69 | |
363 | serge | 70 | pushad |
71 | |||
72 | mov [cmdline], ebx |
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73 | mov [flags], edx |
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74 | |||
75 | ; [ebp] pointer to filename |
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76 | |||
77 | lea eax, [filename] |
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78 | mov dword [eax+1020],0 ;force terminate |
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79 | ;string |
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80 | stdcall k_strncpy, eax, [ebp], 1023 |
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81 | |||
82 | lea eax, [cmdline] |
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83 | mov dword [eax+252], 0 |
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84 | stdcall k_strncpy, eax, [cmdline], 255 |
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85 | |||
86 | lea eax, [filename] |
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87 | stdcall load_file, eax |
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237 | serge | 88 | mov ecx, -ERROR_FILE_NOT_FOUND |
89 | test eax, eax |
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247 | serge | 90 | jz .err_file |
237 | serge | 91 | |
92 | mov [file_base], eax |
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93 | mov [file_size], ebx |
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94 | |||
363 | serge | 95 | lea ebx, [hdr_cmdline] |
237 | serge | 96 | call test_app_header |
97 | mov ecx, -0x1F |
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98 | test eax, eax |
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247 | serge | 99 | jz .err_hdr |
237 | serge | 100 | |
101 | mov esi, new_process_loading |
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102 | call sys_msg_board_str ; write message to message board |
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103 | |||
104 | .wait_lock: |
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105 | cmp [application_table_status],0 |
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106 | je .get_lock |
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107 | call change_task |
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108 | jmp .wait_lock |
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109 | |||
110 | .get_lock: |
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111 | mov eax, 1 |
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112 | xchg eax, [application_table_status] |
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113 | cmp eax, 0 |
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114 | jne .wait_lock |
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115 | |||
116 | call set_application_table_status |
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117 | |||
118 | call get_new_process_place |
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119 | test eax, eax |
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120 | mov ecx, -0x20 ; too many processes |
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269 | serge | 121 | jz .err |
237 | serge | 122 | |
123 | mov [slot], eax |
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124 | shl eax, 8 |
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380 | serge | 125 | add eax, SLOT_BASE |
237 | serge | 126 | mov [slot_base], eax |
127 | mov edi, eax |
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128 | _clear_ 256 ;clean extended information about process |
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129 | |||
130 | ; write application name |
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363 | serge | 131 | lea edi, [filename] |
237 | serge | 132 | mov al, '/' |
133 | call k_strrchr ; now eax points to name without path |
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134 | |||
135 | lea esi, [eax+1] |
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136 | test eax, eax |
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137 | jnz @F |
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363 | serge | 138 | lea esi, [filename] |
237 | serge | 139 | @@: |
140 | mov ecx, 8 ; 8 chars for name |
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141 | mov edi, [slot_base] |
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142 | .copy_process_name_loop: |
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143 | lodsb |
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144 | cmp al, '.' |
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145 | jz .copy_process_name_done |
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146 | test al, al |
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147 | jz .copy_process_name_done |
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148 | stosb |
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149 | loop .copy_process_name_loop |
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150 | .copy_process_name_done: |
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151 | |||
152 | mov ebx, cr3 |
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153 | mov [save_cr3], ebx |
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269 | serge | 154 | |
363 | serge | 155 | stdcall create_app_space,[hdr_mem],[file_base],[file_size] |
364 | diamond | 156 | mov ecx, -30 ; no memory |
237 | serge | 157 | test eax, eax |
158 | jz .failed |
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159 | |||
160 | mov ebx,[slot_base] |
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161 | mov [ebx+APPDATA.dir_table],eax |
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363 | serge | 162 | mov eax,[hdr_mem] |
237 | serge | 163 | mov [ebx+APPDATA.mem_size],eax |
164 | |||
357 | serge | 165 | if GREEDY_KERNEL |
166 | else |
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363 | serge | 167 | mov ecx, [hdr_mem] |
269 | serge | 168 | mov edi, [file_size] |
169 | add edi, 4095 |
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170 | and edi, not 4095 |
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171 | sub ecx, edi |
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172 | jna @F |
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173 | |||
174 | xor eax, eax |
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419 | serge | 175 | ; add edi, new_app_base |
237 | serge | 176 | cld |
269 | serge | 177 | rep stosb |
247 | serge | 178 | @@: |
269 | serge | 179 | end if |
180 | |||
181 | ; release only virtual space, not phisical memory |
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182 | |||
183 | stdcall free_kernel_space, [file_base] |
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363 | serge | 184 | lea eax, [hdr_cmdline] |
185 | lea ebx, [cmdline] |
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186 | lea ecx, [filename] |
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187 | stdcall set_app_params ,[slot],eax,ebx,ecx,[flags] |
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237 | serge | 188 | |
189 | mov eax, [save_cr3] |
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190 | call set_cr3 |
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191 | |||
247 | serge | 192 | xor ebx, ebx |
193 | mov [application_table_status],ebx ;unlock application_table_status mutex |
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194 | mov eax,[process_number] ;set result |
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164 | serge | 195 | ret |
237 | serge | 196 | .failed: |
197 | mov eax, [save_cr3] |
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198 | call set_cr3 |
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269 | serge | 199 | .err: |
247 | serge | 200 | .err_hdr: |
201 | stdcall kernel_free,[file_base] |
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202 | .err_file: |
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237 | serge | 203 | xor eax, eax |
204 | mov [application_table_status],eax |
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321 | diamond | 205 | mov eax, ecx |
237 | serge | 206 | ret |
207 | endp |
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164 | serge | 208 | |
237 | serge | 209 | align 4 |
210 | test_app_header: |
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211 | virtual at eax |
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212 | APP_HEADER_00 APP_HEADER_00 |
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213 | end virtual |
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214 | virtual at eax |
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164 | serge | 215 | APP_HEADER_01 APP_HEADER_01 |
216 | end virtual |
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217 | |||
237 | serge | 218 | cmp dword [eax], 'MENU' |
219 | jne .fail |
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220 | cmp word [eax+4],'ET' |
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221 | jne .fail |
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164 | serge | 222 | |
237 | serge | 223 | cmp [eax+6], word '00' |
224 | jne .check_01_header |
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164 | serge | 225 | |
237 | serge | 226 | mov ecx,[APP_HEADER_00.start] |
227 | mov [ebx+0x08], ecx ;app_eip |
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228 | mov edx,[APP_HEADER_00.mem_size] |
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229 | mov [ebx+0x10], edx ;app_mem |
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230 | shr edx,1 |
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231 | sub edx,0x10 |
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232 | mov [ebx+0x0C], edx ;app_esp |
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233 | mov ecx,[APP_HEADER_00.i_param] |
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234 | mov [ebx], ecx ;app_cmdline |
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235 | mov [ebx+4], dword 0 ;app_path |
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269 | serge | 236 | mov edx, [APP_HEADER_00.i_end] |
237 | mov [ebx+0x14], edx |
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164 | serge | 238 | ret |
239 | |||
237 | serge | 240 | .check_01_header: |
164 | serge | 241 | |
237 | serge | 242 | cmp [eax+6],word '01' |
243 | jne .fail |
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244 | |||
245 | mov ecx,[APP_HEADER_01.start] |
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246 | mov [ebx+0x08], ecx ;app_eip |
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247 | mov edx,[APP_HEADER_01.mem_size] |
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381 | serge | 248 | |
249 | ; \begin{diamond}[20.08.2006] |
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250 | ; sanity check (functions 19,58 load app_i_end bytes and that must |
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251 | ; fit in allocated memory to prevent kernel faults) |
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252 | cmp edx,[APP_HEADER_01.i_end] |
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253 | jb .fail |
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254 | ; \end{diamond}[20.08.2006] |
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255 | |||
237 | serge | 256 | mov [ebx+0x10], edx ;app_mem |
257 | mov ecx,[APP_HEADER_01.stack_top] |
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258 | mov [ebx+0x0C], ecx ;app_esp |
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259 | mov edx,[APP_HEADER_01.i_param] |
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260 | mov [ebx], edx ;app_cmdline |
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261 | mov ecx,[APP_HEADER_01.i_icon] |
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262 | mov [ebx+4], ecx ;app_path |
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269 | serge | 263 | mov edx, [APP_HEADER_01.i_end] |
264 | mov [ebx+0x14], edx |
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237 | serge | 265 | ret |
266 | .fail: |
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164 | serge | 267 | xor eax, eax |
268 | ret |
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269 | |||
270 | align 4 |
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271 | proc get_new_process_place |
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272 | ;input: |
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273 | ; none |
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274 | ;result: |
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275 | ; eax=[new_process_place]<>0 - ok |
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276 | ; 0 - failed. |
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277 | ;This function find least empty slot. |
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278 | ;It doesn't increase [TASK_COUNT]! |
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279 | mov eax,CURRENT_TASK |
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280 | mov ebx,[TASK_COUNT] |
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281 | inc ebx |
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282 | shl ebx,5 |
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283 | add ebx,eax ;ebx - address of process information for (last+1) slot |
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284 | .newprocessplace: |
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285 | ;eax = address of process information for current slot |
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286 | cmp eax,ebx |
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287 | jz .endnewprocessplace ;empty slot after high boundary |
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288 | add eax,0x20 |
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289 | cmp word [eax+0xa],9 ;check process state, 9 means that process slot is empty |
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290 | jnz .newprocessplace |
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291 | .endnewprocessplace: |
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292 | mov ebx,eax |
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293 | sub eax,CURRENT_TASK |
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294 | shr eax,5 ;calculate slot index |
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295 | cmp eax,256 |
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296 | jge .failed ;it should be <256 |
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297 | mov word [ebx+0xa],9 ;set process state to 9 (for slot after hight boundary) |
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298 | ret |
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299 | .failed: |
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300 | xor eax,eax |
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301 | ret |
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302 | endp |
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303 | |||
304 | align 4 |
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269 | serge | 305 | proc create_app_space stdcall, app_size:dword,img_base:dword,img_size:dword |
164 | serge | 306 | locals |
307 | app_pages dd ? |
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308 | img_pages dd ? |
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309 | dir_addr dd ? |
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310 | app_tabs dd ? |
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311 | endl |
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312 | |||
276 | serge | 313 | mov ebx, pg_data.pg_mutex |
314 | call wait_mutex ;ebx |
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164 | serge | 315 | |
316 | xor eax, eax |
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317 | mov [dir_addr], eax |
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318 | |||
319 | mov eax, [app_size] |
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172 | serge | 320 | add eax, 4095 |
164 | serge | 321 | and eax, NOT(4095) |
322 | mov [app_size], eax |
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323 | mov ebx, eax |
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324 | shr eax, 12 |
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325 | mov [app_pages], eax |
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170 | serge | 326 | |
164 | serge | 327 | add ebx, 0x3FFFFF |
328 | and ebx, NOT(0x3FFFFF) |
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329 | shr ebx, 22 |
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330 | mov [app_tabs], ebx |
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331 | |||
170 | serge | 332 | mov ecx, [img_size] |
333 | add ecx, 4095 |
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334 | and ecx, NOT(4095) |
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164 | serge | 335 | |
170 | serge | 336 | mov [img_size], ecx |
337 | shr ecx, 12 |
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338 | mov [img_pages], ecx |
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164 | serge | 339 | |
170 | serge | 340 | if GREEDY_KERNEL |
341 | lea eax, [ecx+ebx+2] ;only image size |
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342 | else |
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343 | lea eax, [eax+ebx+2] ;all requested memory |
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344 | end if |
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345 | cmp eax, [pg_data.pages_free] |
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346 | ja .fail |
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347 | |||
164 | serge | 348 | call alloc_page |
349 | test eax, eax |
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350 | jz .fail |
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351 | mov [dir_addr], eax |
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352 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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353 | |||
354 | mov edi, [tmp_task_pdir] |
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418 | serge | 355 | mov ecx, (OS_BASE shr 20)/4 |
394 | serge | 356 | xor eax, eax |
418 | serge | 357 | cld |
394 | serge | 358 | rep stosd |
359 | |||
418 | serge | 360 | mov ecx, (OS_BASE shr 20)/4 |
400 | serge | 361 | mov esi, sys_pgdir+(OS_BASE shr 20) |
164 | serge | 362 | rep movsd |
363 | |||
378 | serge | 364 | mov eax, [dir_addr] |
418 | serge | 365 | or eax, PG_SW |
366 | mov [edi-4096+(page_tabs shr 20)], eax |
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367 | |||
368 | and eax, -4096 |
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164 | serge | 369 | call set_cr3 |
370 | |||
371 | mov edx, [app_tabs] |
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372 | mov edi, new_app_base |
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373 | @@: |
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374 | call alloc_page |
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375 | test eax, eax |
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376 | jz .fail |
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377 | |||
188 | serge | 378 | stdcall map_page_table, edi, eax |
164 | serge | 379 | add edi, 0x00400000 |
380 | dec edx |
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381 | jnz @B |
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382 | |||
383 | mov edi, new_app_base |
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384 | shr edi, 10 |
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365 | serge | 385 | add edi, page_tabs |
269 | serge | 386 | |
164 | serge | 387 | mov ecx, [app_tabs] |
388 | shl ecx, 10 |
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389 | xor eax, eax |
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390 | rep stosd |
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391 | |||
269 | serge | 392 | mov ecx, [img_pages] |
393 | mov ebx, PG_UW |
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164 | serge | 394 | mov edx, new_app_base |
269 | serge | 395 | mov esi, [img_base] |
396 | mov edi, new_app_base |
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397 | shr esi, 10 |
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398 | shr edi, 10 |
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365 | serge | 399 | add esi, page_tabs |
400 | add edi, page_tabs |
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269 | serge | 401 | .remap: |
402 | lodsd |
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403 | or eax, ebx ; force user level r/w access |
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404 | stosd |
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405 | add edx, 0x1000 |
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406 | dec [app_pages] |
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407 | dec ecx |
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408 | jnz .remap |
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409 | |||
410 | mov ecx, [app_pages] |
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411 | test ecx, ecx |
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412 | jz .done |
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413 | |||
414 | if GREEDY_KERNEL |
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415 | mov eax, 0x02 |
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416 | .reserve: |
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417 | stosd |
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418 | invlpg [edx] |
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419 | add edx, 4096 |
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420 | dec ecx |
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421 | jnz .reserve |
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422 | else |
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423 | |||
164 | serge | 424 | .alloc: |
425 | call alloc_page |
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426 | test eax, eax |
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427 | jz .fail |
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428 | |||
429 | stdcall map_page,edx,eax,dword PG_UW |
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430 | add edx, 0x1000 |
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269 | serge | 431 | dec [app_pages] |
164 | serge | 432 | jnz .alloc |
269 | serge | 433 | end if |
164 | serge | 434 | |
269 | serge | 435 | .done: |
164 | serge | 436 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
437 | |||
438 | dec [pg_data.pg_mutex] |
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439 | mov eax, [dir_addr] |
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440 | ret |
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441 | .fail: |
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442 | dec [pg_data.pg_mutex] |
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443 | cmp [dir_addr], 0 |
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357 | serge | 444 | je @f |
164 | serge | 445 | stdcall destroy_app_space, [dir_addr] |
446 | @@: |
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447 | xor eax, eax |
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448 | ret |
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449 | endp |
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450 | |||
451 | align 4 |
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452 | set_cr3: |
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427 | serge | 453 | |
454 | mov ebx, [current_slot] |
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455 | mov [ebx+APPDATA.dir_table], eax |
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164 | serge | 456 | mov cr3, eax |
457 | ret |
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458 | |||
459 | align 4 |
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460 | proc destroy_page_table stdcall, pg_tab:dword |
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461 | |||
462 | push esi |
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463 | |||
464 | mov esi, [pg_tab] |
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465 | mov ecx, 1024 |
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466 | .free: |
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467 | mov eax, [esi] |
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468 | test eax, 1 |
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469 | jz .next |
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470 | call free_page |
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471 | .next: |
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472 | add esi, 4 |
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473 | dec ecx |
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474 | jnz .free |
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475 | pop esi |
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476 | ret |
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477 | endp |
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478 | |||
479 | align 4 |
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480 | proc destroy_app_space stdcall, pg_dir:dword |
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481 | |||
276 | serge | 482 | mov ebx, pg_data.pg_mutex |
483 | call wait_mutex ;ebx |
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164 | serge | 484 | |
485 | xor edx,edx |
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486 | mov eax,0x2 |
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487 | mov ebx, [pg_dir] |
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488 | .loop: |
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489 | ;eax = current slot of process |
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490 | mov ecx,eax |
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491 | shl ecx,5 |
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492 | cmp byte [CURRENT_TASK+ecx+0xa],9 ;if process running? |
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493 | jz @f ;skip empty slots |
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494 | shl ecx,3 |
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380 | serge | 495 | cmp [SLOT_BASE+ecx+0xB8],ebx ;compare page directory addresses |
164 | serge | 496 | jnz @f |
497 | inc edx ;thread found |
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498 | @@: |
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499 | inc eax |
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500 | cmp eax,[TASK_COUNT] ;exit loop if we look through all processes |
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501 | jle .loop |
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502 | |||
503 | ;edx = number of threads |
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504 | ;our process is zombi so it isn't counted |
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505 | cmp edx,1 |
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506 | jg .exit |
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507 | ;if there isn't threads then clear memory. |
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508 | |||
509 | mov eax, [pg_dir] |
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510 | and eax, not 0xFFF |
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511 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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512 | mov esi, [tmp_task_pdir] |
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418 | serge | 513 | mov edi, (OS_BASE shr 20)/4 |
164 | serge | 514 | .destroy: |
515 | mov eax, [esi] |
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516 | test eax, 1 |
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517 | jz .next |
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518 | and eax, not 0xFFF |
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519 | stdcall map_page,[tmp_task_ptab],eax,dword PG_SW |
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520 | stdcall destroy_page_table, [tmp_task_ptab] |
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521 | mov eax, [esi] |
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522 | call free_page |
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523 | .next: |
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524 | add esi, 4 |
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525 | dec edi |
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526 | jnz .destroy |
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527 | |||
528 | mov eax, [pg_dir] |
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529 | call free_page |
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530 | .exit: |
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531 | stdcall map_page,[tmp_task_ptab],dword 0,dword PG_UNMAP |
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532 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
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533 | dec [pg_data.pg_mutex] |
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534 | ret |
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535 | endp |
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536 | |||
537 | pid_to_slot: |
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538 | ;Input: |
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539 | ; eax - pid of process |
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540 | ;Output: |
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541 | ; eax - slot of process or 0 if process don't exists |
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542 | ;Search process by PID. |
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543 | push ebx |
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544 | push ecx |
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545 | mov ebx,[TASK_COUNT] |
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546 | shl ebx,5 |
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547 | mov ecx,2*32 |
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548 | |||
549 | .loop: |
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550 | ;ecx=offset of current process info entry |
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551 | ;ebx=maximum permitted offset |
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552 | cmp byte [CURRENT_TASK+ecx+0xa],9 |
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553 | jz .endloop ;skip empty slots |
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554 | cmp [CURRENT_TASK+ecx+0x4],eax ;check PID |
||
555 | jz .pid_found |
||
556 | .endloop: |
||
557 | add ecx,32 |
||
558 | cmp ecx,ebx |
||
559 | jle .loop |
||
560 | |||
561 | pop ecx |
||
562 | pop ebx |
||
563 | xor eax,eax |
||
564 | ret |
||
565 | |||
566 | .pid_found: |
||
567 | shr ecx,5 |
||
568 | mov eax,ecx ;convert offset to index of slot |
||
569 | pop ecx |
||
570 | pop ebx |
||
571 | ret |
||
572 | |||
573 | check_region: |
||
574 | ;input: |
||
575 | ; ebx - start of buffer |
||
576 | ; ecx - size of buffer |
||
577 | ;result: |
||
578 | ; eax = 1 region lays in app memory |
||
579 | ; eax = 0 region don't lays in app memory |
||
580 | mov eax,[CURRENT_TASK] |
||
581 | jmp check_process_region |
||
582 | ;----------------------------------------------------------------------------- |
||
583 | check_process_region: |
||
584 | ;input: |
||
585 | ; eax - slot |
||
586 | ; ebx - start of buffer |
||
587 | ; ecx - size of buffer |
||
588 | ;result: |
||
589 | ; eax = 1 region lays in app memory |
||
590 | ; eax = 0 region don't lays in app memory |
||
591 | |||
592 | test ecx,ecx |
||
593 | jle .ok |
||
594 | shl eax,5 |
||
595 | cmp word [CURRENT_TASK+eax+0xa],0 |
||
596 | jnz .failed |
||
597 | shl eax,3 |
||
380 | serge | 598 | mov eax,[SLOT_BASE+eax+0xb8] |
164 | serge | 599 | test eax,eax |
600 | jz .failed |
||
601 | |||
602 | mov eax,1 |
||
603 | ret |
||
604 | |||
605 | |||
606 | ; call MEM_Get_Linear_Address |
||
607 | ; push ebx |
||
608 | ; push ecx |
||
609 | ; push edx |
||
610 | ; mov edx,ebx |
||
611 | ; and edx,not (4096-1) |
||
612 | ; sub ebx,edx |
||
613 | ; add ecx,ebx |
||
614 | ; mov ebx,edx |
||
615 | ; add ecx,(4096-1) |
||
616 | ; and ecx,not (4096-1) |
||
617 | ;.loop: |
||
618 | ;;eax - linear address of page directory |
||
619 | ;;ebx - current page |
||
620 | ;;ecx - current size |
||
621 | ; mov edx,ebx |
||
622 | ; shr edx,22 |
||
623 | ; mov edx,[eax+4*edx] |
||
624 | ; and edx,not (4096-1) |
||
625 | ; test edx,edx |
||
626 | ; jz .failed1 |
||
627 | ; push eax |
||
628 | ; mov eax,edx |
||
629 | ; call MEM_Get_Linear_Address |
||
630 | ; mov edx,ebx |
||
631 | ; shr edx,12 |
||
632 | ; and edx,(1024-1) |
||
633 | ; mov eax,[eax+4*edx] |
||
634 | ; and eax,not (4096-1) |
||
635 | ; test eax,eax |
||
636 | ; pop eax |
||
637 | ; jz .failed1 |
||
638 | ; add ebx,4096 |
||
639 | ; sub ecx,4096 |
||
640 | ; jg .loop |
||
641 | ; pop edx |
||
642 | ; pop ecx |
||
643 | ; pop ebx |
||
644 | .ok: |
||
645 | mov eax,1 |
||
646 | ret |
||
647 | ; |
||
648 | ;.failed1: |
||
649 | ; pop edx |
||
650 | ; pop ecx |
||
651 | ; pop ebx |
||
652 | .failed: |
||
653 | xor eax,eax |
||
654 | ret |
||
655 | |||
656 | align 4 |
||
657 | proc read_process_memory |
||
658 | ;Input: |
||
659 | ; eax - process slot |
||
660 | ; ebx - buffer address |
||
661 | ; ecx - buffer size |
||
662 | ; edx - start address in other process |
||
663 | ;Output: |
||
664 | ; eax - number of bytes read. |
||
665 | locals |
||
666 | slot dd ? |
||
667 | buff dd ? |
||
668 | r_count dd ? |
||
669 | offset dd ? |
||
670 | tmp_r_cnt dd ? |
||
671 | endl |
||
672 | |||
673 | mov [slot], eax |
||
674 | mov [buff], ebx |
||
675 | mov [r_count], ecx |
||
676 | mov [tmp_r_cnt], ecx |
||
677 | mov [offset], edx |
||
678 | |||
679 | pushad |
||
680 | .read_mem: |
||
681 | mov edx, [offset] |
||
682 | mov ebx, [tmp_r_cnt] |
||
683 | |||
684 | mov ecx, 0x400000 |
||
685 | and edx, 0x3FFFFF |
||
686 | sub ecx, edx |
||
687 | cmp ecx, ebx |
||
688 | jbe @f |
||
689 | mov ecx, ebx |
||
690 | @@: |
||
691 | cmp ecx, 0x8000 |
||
692 | jna @F |
||
693 | mov ecx, 0x8000 |
||
694 | @@: |
||
695 | mov eax, [slot] |
||
696 | shl eax,8 |
||
697 | mov ebx, [offset] |
||
419 | serge | 698 | ; add ebx, new_app_base |
164 | serge | 699 | push ecx |
700 | stdcall map_memEx, [proc_mem_map],\ |
||
380 | serge | 701 | [SLOT_BASE+eax+0xB8],\ |
164 | serge | 702 | ebx, ecx |
703 | pop ecx |
||
704 | |||
705 | mov esi, [offset] |
||
706 | and esi, 0xfff |
||
707 | add esi, [proc_mem_map] |
||
708 | mov edi, [buff] |
||
709 | mov edx, ecx |
||
710 | rep movsb |
||
711 | |||
712 | add [offset], edx |
||
713 | sub [tmp_r_cnt], edx |
||
714 | jnz .read_mem |
||
715 | |||
716 | popad |
||
717 | mov eax, [r_count] |
||
718 | ret |
||
719 | endp |
||
720 | |||
721 | align 4 |
||
722 | proc write_process_memory |
||
723 | ;Input: |
||
724 | ; eax - process slot |
||
725 | ; ebx - buffer address |
||
726 | ; ecx - buffer size |
||
727 | ; edx - start address in other process |
||
728 | ;Output: |
||
729 | ; eax - number of bytes written |
||
730 | |||
731 | locals |
||
732 | slot dd ? |
||
733 | buff dd ? |
||
734 | w_count dd ? |
||
735 | offset dd ? |
||
736 | tmp_w_cnt dd ? |
||
737 | endl |
||
738 | |||
739 | mov [slot], eax |
||
740 | mov [buff], ebx |
||
741 | mov [w_count], ecx |
||
742 | mov [tmp_w_cnt], ecx |
||
743 | mov [offset], edx |
||
744 | |||
745 | pushad |
||
746 | .read_mem: |
||
747 | mov edx, [offset] |
||
748 | mov ebx, [tmp_w_cnt] |
||
749 | |||
750 | mov ecx, 0x400000 |
||
751 | and edx, 0x3FFFFF |
||
752 | sub ecx, edx |
||
753 | cmp ecx, ebx |
||
754 | jbe @f |
||
755 | mov ecx, ebx |
||
756 | @@: |
||
757 | cmp ecx, 0x8000 |
||
758 | jna @F |
||
759 | mov ecx, 0x8000 |
||
760 | @@: |
||
761 | mov eax, [slot] |
||
762 | shl eax,8 |
||
763 | mov ebx, [offset] |
||
419 | serge | 764 | ; add ebx, new_app_base |
164 | serge | 765 | push ecx |
766 | stdcall map_memEx, [proc_mem_map],\ |
||
380 | serge | 767 | [SLOT_BASE+eax+0xB8],\ |
164 | serge | 768 | ebx, ecx |
769 | pop ecx |
||
770 | |||
771 | mov edi, [offset] |
||
772 | and edi, 0xfff |
||
773 | add edi, [proc_mem_map] |
||
774 | mov esi, [buff] |
||
775 | mov edx, ecx |
||
776 | rep movsb |
||
777 | |||
778 | add [offset], edx |
||
779 | sub [tmp_w_cnt], edx |
||
780 | jnz .read_mem |
||
781 | |||
782 | popad |
||
783 | mov eax, [w_count] |
||
784 | ret |
||
785 | endp |
||
786 | |||
787 | align 4 |
||
788 | proc new_sys_threads |
||
789 | locals |
||
790 | slot dd ? |
||
237 | serge | 791 | app_cmdline dd ? ;0x00 |
792 | app_path dd ? ;0x04 |
||
793 | app_eip dd ? ;0x08 |
||
794 | app_esp dd ? ;0x0C |
||
795 | app_mem dd ? ;0x10 |
||
164 | serge | 796 | endl |
797 | |||
237 | serge | 798 | cmp eax,1 |
799 | jne .failed ;other subfunctions |
||
164 | serge | 800 | |
237 | serge | 801 | xor eax,eax |
802 | mov [app_cmdline], eax |
||
803 | mov [app_path], eax |
||
804 | mov [app_eip], ebx |
||
805 | mov [app_esp], ecx |
||
164 | serge | 806 | |
807 | mov esi,new_process_loading |
||
808 | call sys_msg_board_str |
||
809 | .wait_lock: |
||
810 | cmp [application_table_status],0 |
||
811 | je .get_lock |
||
812 | call change_task |
||
813 | jmp .wait_lock |
||
814 | |||
815 | .get_lock: |
||
816 | mov eax, 1 |
||
817 | xchg eax, [application_table_status] |
||
818 | cmp eax, 0 |
||
819 | jne .wait_lock |
||
820 | |||
821 | call set_application_table_status |
||
822 | |||
823 | call get_new_process_place |
||
824 | test eax, eax |
||
825 | jz .failed |
||
826 | |||
827 | mov [slot], eax |
||
828 | |||
427 | serge | 829 | mov esi,[current_slot] |
237 | serge | 830 | mov ebx,esi ;ebx=esi - pointer to extended information about current thread |
164 | serge | 831 | |
237 | serge | 832 | mov edi, eax |
164 | serge | 833 | shl edi,8 |
380 | serge | 834 | add edi,SLOT_BASE |
237 | serge | 835 | mov edx,edi ;edx=edi - pointer to extended infomation about new thread |
164 | serge | 836 | mov ecx,256/4 |
237 | serge | 837 | xor eax, eax |
838 | cld |
||
839 | rep stosd ;clean extended information about new thread |
||
840 | mov esi,ebx |
||
164 | serge | 841 | mov edi,edx |
419 | serge | 842 | mov byte [edi], '@' |
843 | inc edi |
||
164 | serge | 844 | mov ecx,11 |
237 | serge | 845 | rep movsb ;copy process name |
164 | serge | 846 | |
237 | serge | 847 | mov eax,[ebx+APPDATA.heap_base] |
848 | mov [edx+APPDATA.heap_base], eax |
||
164 | serge | 849 | |
237 | serge | 850 | mov ecx,[ebx+APPDATA.heap_top] |
851 | mov [edx+APPDATA.heap_top], ecx |
||
852 | |||
853 | mov eax,[ebx+APPDATA.mem_size] |
||
854 | mov [edx+APPDATA.mem_size], eax |
||
855 | |||
856 | mov ecx,[ebx+APPDATA.dir_table] |
||
857 | mov [edx+APPDATA.dir_table],ecx ;copy page directory |
||
858 | |||
859 | lea eax, [app_cmdline] |
||
860 | stdcall set_app_params ,[slot],eax,dword 0,\ |
||
861 | dword 0,dword 0 |
||
862 | |||
164 | serge | 863 | mov esi,new_process_running |
864 | call sys_msg_board_str ;output information about succefull startup |
||
865 | |||
866 | mov [application_table_status],0 ;unlock application_table_status mutex |
||
867 | mov eax,[process_number] ;set result |
||
868 | ret |
||
869 | .failed: |
||
870 | mov [application_table_status],0 |
||
871 | mov eax,-1 |
||
872 | ret |
||
873 | endp |
||
874 | |||
276 | serge | 875 | ; param |
876 | ; ebx=mutex |
||
877 | |||
164 | serge | 878 | align 4 |
276 | serge | 879 | wait_mutex: |
880 | push eax |
||
881 | push ebx |
||
321 | diamond | 882 | .do_wait: |
164 | serge | 883 | cmp dword [ebx],0 |
884 | je .get_lock |
||
885 | call change_task |
||
321 | diamond | 886 | jmp .do_wait |
164 | serge | 887 | .get_lock: |
888 | mov eax, 1 |
||
889 | xchg eax, [ebx] |
||
890 | test eax, eax |
||
321 | diamond | 891 | jnz .do_wait |
276 | serge | 892 | pop ebx |
893 | pop eax |
||
164 | serge | 894 | ret |
895 | |||
237 | serge | 896 | align 4 |
897 | proc set_app_params stdcall,slot:dword, params:dword,\ |
||
898 | cmd_line:dword, app_path:dword, flags:dword |
||
164 | serge | 899 | |
357 | serge | 900 | locals |
901 | pl0_stack dd ? |
||
902 | endl |
||
237 | serge | 903 | |
418 | serge | 904 | stdcall kernel_alloc, RING0_STACK_SIZE+512 |
357 | serge | 905 | mov [pl0_stack], eax |
906 | |||
418 | serge | 907 | lea edi, [eax+RING0_STACK_SIZE] |
357 | serge | 908 | |
909 | mov eax, [slot] |
||
910 | mov ebx, eax |
||
911 | |||
912 | shl eax, 8 |
||
380 | serge | 913 | mov [eax+SLOT_BASE+APPDATA.fpu_state], edi |
914 | mov [eax+SLOT_BASE+APPDATA.fpu_handler], 0 |
||
915 | mov [eax+SLOT_BASE+APPDATA.sse_handler], 0 |
||
357 | serge | 916 | |
430 | serge | 917 | ;set default io permission map |
918 | mov [eax+SLOT_BASE+APPDATA.io_map],\ |
||
919 | (tss._io_map_0-OS_BASE+PG_MAP) |
||
920 | mov [eax+SLOT_BASE+APPDATA.io_map+4],\ |
||
921 | (tss._io_map_1-OS_BASE+PG_MAP) |
||
922 | |||
357 | serge | 923 | mov esi, fpu_data |
237 | serge | 924 | mov ecx, 512/4 |
925 | rep movsd |
||
926 | |||
357 | serge | 927 | cmp ebx,[TASK_COUNT] |
928 | jle .noinc |
||
929 | inc dword [TASK_COUNT] ;update number of processes |
||
237 | serge | 930 | .noinc: |
281 | serge | 931 | shl ebx,8 |
380 | serge | 932 | lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET] |
933 | mov [SLOT_BASE+APPDATA.fd_ev+ebx],edx |
||
934 | mov [SLOT_BASE+APPDATA.bk_ev+ebx],edx |
||
354 | serge | 935 | |
936 | add edx, APP_OBJ_OFFSET-APP_EV_OFFSET |
||
380 | serge | 937 | mov [SLOT_BASE+APPDATA.fd_obj+ebx],edx |
938 | mov [SLOT_BASE+APPDATA.bk_obj+ebx],edx |
||
237 | serge | 939 | |
281 | serge | 940 | mov ecx, [def_cursor] |
380 | serge | 941 | mov [SLOT_BASE+APPDATA.cursor+ebx],ecx |
357 | serge | 942 | mov eax, [pl0_stack] |
380 | serge | 943 | mov [SLOT_BASE+APPDATA.pl0_stack+ebx],eax |
281 | serge | 944 | |
945 | shr ebx,3 |
||
237 | serge | 946 | mov eax, new_app_base |
947 | mov dword [CURRENT_TASK+ebx+0x10],eax |
||
948 | |||
949 | .add_command_line: |
||
950 | mov edx,[params] |
||
951 | mov edx,[edx] ;app_cmdline |
||
952 | test edx,edx |
||
953 | jz @F ;application don't need parameters |
||
281 | serge | 954 | |
955 | mov eax, edx |
||
956 | add eax, 256 |
||
957 | jc @f |
||
958 | |||
380 | serge | 959 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
281 | serge | 960 | ja @f |
961 | |||
262 | diamond | 962 | stdcall k_strncpy, edx, [cmd_line], 256 |
237 | serge | 963 | @@: |
964 | mov edx,[params] |
||
965 | mov edx, [edx+4] ;app_path |
||
966 | test edx,edx |
||
967 | jz @F ;application don't need path of file |
||
432 | serge | 968 | mov eax, edx |
969 | add eax, 1024 |
||
970 | jc @f |
||
971 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
||
972 | ja @f |
||
262 | diamond | 973 | stdcall k_strncpy, edx, [app_path], 1024 |
237 | serge | 974 | @@: |
975 | mov ebx,[slot] |
||
976 | mov eax,ebx |
||
977 | shl ebx,5 |
||
420 | serge | 978 | lea ecx,[draw_data+ebx] ;ecx - pointer to draw data |
979 | |||
237 | serge | 980 | ; set window state to 'normal' (non-minimized/maximized/rolled-up) state |
981 | mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL |
||
982 | mov [ebx+window_data+WDATA.fl_redraw], 1 |
||
983 | add ebx,CURRENT_TASK ;ebx - pointer to information about process |
||
984 | mov [ebx+TASKDATA.wnd_number],al;set window number on screen = process slot |
||
985 | |||
986 | mov [ebx+TASKDATA.event_mask],dword 1+2+4 ;set default event flags (see 40 function) |
||
987 | |||
988 | inc dword [process_number] |
||
989 | mov eax,[process_number] |
||
990 | mov [ebx+4],eax ;set PID |
||
991 | |||
992 | ;set draw data to full screen |
||
993 | |||
994 | mov [ecx+0],dword 0 |
||
995 | mov [ecx+4],dword 0 |
||
381 | serge | 996 | mov eax,[ScreenWidth] |
237 | serge | 997 | mov [ecx+8],eax |
381 | serge | 998 | mov eax,[ScreenHeight] |
237 | serge | 999 | mov [ecx+12],eax |
1000 | |||
430 | serge | 1001 | mov ebx, [pl0_stack] |
237 | serge | 1002 | mov esi,[params] |
430 | serge | 1003 | lea ecx, [ebx+REG_EIP] |
420 | serge | 1004 | xor eax, eax |
1005 | |||
1006 | mov [ebx+REG_RET], dword irq0.return |
||
1007 | mov [ebx+REG_EDI], eax |
||
1008 | mov [ebx+REG_ESI], eax |
||
1009 | mov [ebx+REG_EBP], eax |
||
1010 | mov [ebx+REG_ESP], ecx ;ebx+REG_EIP |
||
1011 | mov [ebx+REG_EBX], eax |
||
1012 | mov [ebx+REG_EDX], eax |
||
1013 | mov [ebx+REG_ECX], eax |
||
1014 | mov [ebx+REG_EAX], eax |
||
1015 | |||
1016 | mov [ebx+REG_EFL_2], dword 0x1002 |
||
1017 | |||
1018 | mov eax, [esi+0x08] ;app_eip |
||
1019 | mov [ebx+REG_EIP], eax ;app_entry |
||
1020 | mov [ebx+REG_CS], dword app_code |
||
1021 | mov [ebx+REG_EFLAGS], dword 0x1202 |
||
1022 | |||
1023 | mov eax, [esi+0x0C] ;app_esp |
||
1024 | mov [ebx+REG_APP_ESP], eax ;app_stack |
||
1025 | mov [ebx+REG_SS], dword app_data |
||
1026 | |||
1027 | lea ecx, [ebx+REG_RET] |
||
1028 | mov ebx, [slot] |
||
1029 | shl ebx, 8 |
||
1030 | mov [ebx+SLOT_BASE+APPDATA.saved_esp], ecx |
||
1031 | |||
237 | serge | 1032 | ;flush keyboard and buttons queue |
1033 | mov [KEY_COUNT],byte 0 |
||
1034 | mov [BTN_COUNT],byte 0 |
||
1035 | |||
1036 | mov edi,[slot] |
||
1037 | shl edi,5 |
||
1038 | add edi,window_data |
||
1039 | mov ebx,[slot] |
||
1040 | movzx esi,word [WIN_STACK+ebx*2] |
||
1041 | lea esi,[WIN_POS+esi*2] |
||
1042 | call windowactivate ;gui initialization |
||
1043 | |||
1044 | mov ebx,[slot] |
||
1045 | shl ebx,5 |
||
1046 | mov [CURRENT_TASK+ebx+0xa],byte 0 ;set process state - running |
||
1047 | ; set if debuggee |
||
1048 | mov eax, [flags] |
||
1049 | test byte [flags], 1 |
||
1050 | jz .no_debug |
||
1051 | mov [CURRENT_TASK+ebx+0xa],byte 1 ;set process state - suspended |
||
1052 | mov eax,[CURRENT_TASK] |
||
380 | serge | 1053 | mov [SLOT_BASE+ebx*8+0xac],eax ;set debugger PID - current |
237 | serge | 1054 | .no_debug: |
1055 | mov esi,new_process_running |
||
1056 | call sys_msg_board_str ;output information about succefull startup |
||
1057 | ret |
||
1058 | endp |
||
1059 | |||
164 | serge | 1060 | include "debug.inc"256 |
1061 |