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Rev | Author | Line No. | Line |
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425 | victor | 1 | $Revision: 525 $ |
431 | serge | 2 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
3 | ;; ;; |
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4 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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5 | ;; Distributed under terms of the GNU General Public License ;; |
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6 | ;; ;; |
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7 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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8 | |||
357 | serge | 9 | GREEDY_KERNEL equ 0 |
164 | serge | 10 | |
11 | struc APP_HEADER_00 |
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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 | .i_param dd ? ;+24 |
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18 | } |
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19 | |||
20 | struc APP_HEADER_01 |
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21 | { .banner dq ? |
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22 | .version dd ? ;+8 |
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23 | .start dd ? ;+12 |
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24 | .i_end dd ? ;+16 |
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25 | .mem_size dd ? ;+20 |
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26 | .stack_top dd ? ;+24 |
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27 | .i_param dd ? ;+28 |
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28 | .i_icon dd ? ;+32 |
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29 | } |
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30 | |||
237 | serge | 31 | |
32 | struc APP_PARAMS |
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33 | { .app_cmdline ;0x00 |
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34 | .app_path ;0x04 |
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35 | .app_eip ;0x08 |
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36 | .app_esp ;0x0C |
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37 | .app_mem ;0x10 |
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38 | } |
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39 | |||
40 | macro _clear_ op |
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41 | { mov ecx, op/4 |
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42 | xor eax, eax |
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43 | cld |
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44 | rep stosd |
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45 | } |
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46 | |||
521 | diamond | 47 | fs_execute_from_sysdir: |
48 | xor ebx, ebx |
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49 | xor edx, edx |
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50 | mov esi, sysdir_path |
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363 | serge | 51 | |
164 | serge | 52 | align 4 |
363 | serge | 53 | proc fs_execute |
54 | |||
55 | ;fn_read:dword, file_size:dword, cluster:dword |
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56 | |||
57 | ; ebx - cmdline |
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58 | ; edx - flags |
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59 | ; ebp - full filename |
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60 | ; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it |
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61 | |||
237 | serge | 62 | locals |
363 | serge | 63 | cmdline rd 64 ;256/4 |
64 | filename rd 256 ;1024/4 |
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65 | flags dd ? |
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66 | |||
237 | serge | 67 | save_cr3 dd ? |
68 | slot dd ? |
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69 | slot_base dd ? |
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70 | file_base dd ? |
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71 | file_size dd ? |
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363 | serge | 72 | ;app header data |
73 | hdr_cmdline dd ? ;0x00 |
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74 | hdr_path dd ? ;0x04 |
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75 | hdr_eip dd ? ;0x08 |
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76 | hdr_esp dd ? ;0x0C |
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77 | hdr_mem dd ? ;0x10 |
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78 | hdr_i_end dd ? ;0x14 |
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237 | serge | 79 | endl |
164 | serge | 80 | |
363 | serge | 81 | pushad |
82 | |||
83 | mov [flags], edx |
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84 | |||
85 | ; [ebp] pointer to filename |
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86 | |||
521 | diamond | 87 | lea edi, [filename] |
88 | lea ecx, [edi+1024] |
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89 | mov al, '/' |
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90 | stosb |
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91 | @@: |
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92 | cmp edi, ecx |
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93 | jae .bigfilename |
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94 | lodsb |
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95 | stosb |
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96 | test al, al |
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97 | jnz @b |
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98 | mov esi, [ebp] |
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99 | test esi, esi |
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100 | jz .namecopied |
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101 | mov byte [edi-1], '/' |
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102 | @@: |
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103 | cmp edi, ecx |
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104 | jae .bigfilename |
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105 | lodsb |
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106 | stosb |
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107 | test al, al |
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108 | jnz @b |
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109 | jmp .namecopied |
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110 | .bigfilename: |
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111 | popad |
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112 | mov eax, -ERROR_FILE_NOT_FOUND |
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113 | ret |
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114 | .namecopied: |
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363 | serge | 115 | |
519 | serge | 116 | mov [cmdline], ebx |
117 | test ebx, ebx |
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118 | jz @F |
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119 | |||
363 | serge | 120 | lea eax, [cmdline] |
121 | mov dword [eax+252], 0 |
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519 | serge | 122 | stdcall strncpy, eax, ebx, 255 |
123 | @@: |
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363 | serge | 124 | lea eax, [filename] |
125 | stdcall load_file, eax |
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237 | serge | 126 | mov ecx, -ERROR_FILE_NOT_FOUND |
127 | test eax, eax |
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247 | serge | 128 | jz .err_file |
237 | serge | 129 | |
130 | mov [file_base], eax |
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131 | mov [file_size], ebx |
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132 | |||
363 | serge | 133 | lea ebx, [hdr_cmdline] |
237 | serge | 134 | call test_app_header |
135 | mov ecx, -0x1F |
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136 | test eax, eax |
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247 | serge | 137 | jz .err_hdr |
237 | serge | 138 | |
506 | mikedld | 139 | ;mov esi, new_process_loading |
140 | ;call sys_msg_board_str ; write message to message board |
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141 | DEBUGF 1,"%s",new_process_loading |
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237 | serge | 142 | |
143 | .wait_lock: |
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144 | cmp [application_table_status],0 |
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145 | je .get_lock |
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146 | call change_task |
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147 | jmp .wait_lock |
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148 | |||
149 | .get_lock: |
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150 | mov eax, 1 |
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151 | xchg eax, [application_table_status] |
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152 | cmp eax, 0 |
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153 | jne .wait_lock |
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154 | |||
155 | call set_application_table_status |
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156 | |||
157 | call get_new_process_place |
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158 | test eax, eax |
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159 | mov ecx, -0x20 ; too many processes |
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269 | serge | 160 | jz .err |
237 | serge | 161 | |
162 | mov [slot], eax |
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163 | shl eax, 8 |
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380 | serge | 164 | add eax, SLOT_BASE |
237 | serge | 165 | mov [slot_base], eax |
166 | mov edi, eax |
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167 | _clear_ 256 ;clean extended information about process |
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168 | |||
169 | ; write application name |
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519 | serge | 170 | lea eax, [filename] |
171 | stdcall strrchr, eax, '/' ; now eax points to name without path |
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237 | serge | 172 | |
173 | lea esi, [eax+1] |
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174 | test eax, eax |
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175 | jnz @F |
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363 | serge | 176 | lea esi, [filename] |
237 | serge | 177 | @@: |
178 | mov ecx, 8 ; 8 chars for name |
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179 | mov edi, [slot_base] |
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180 | .copy_process_name_loop: |
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181 | lodsb |
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182 | cmp al, '.' |
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183 | jz .copy_process_name_done |
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184 | test al, al |
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185 | jz .copy_process_name_done |
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186 | stosb |
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187 | loop .copy_process_name_loop |
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188 | .copy_process_name_done: |
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189 | |||
190 | mov ebx, cr3 |
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191 | mov [save_cr3], ebx |
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269 | serge | 192 | |
363 | serge | 193 | stdcall create_app_space,[hdr_mem],[file_base],[file_size] |
364 | diamond | 194 | mov ecx, -30 ; no memory |
237 | serge | 195 | test eax, eax |
196 | jz .failed |
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197 | |||
198 | mov ebx,[slot_base] |
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199 | mov [ebx+APPDATA.dir_table],eax |
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363 | serge | 200 | mov eax,[hdr_mem] |
237 | serge | 201 | mov [ebx+APPDATA.mem_size],eax |
202 | |||
357 | serge | 203 | if GREEDY_KERNEL |
204 | else |
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363 | serge | 205 | mov ecx, [hdr_mem] |
269 | serge | 206 | mov edi, [file_size] |
207 | add edi, 4095 |
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208 | and edi, not 4095 |
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209 | sub ecx, edi |
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210 | jna @F |
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211 | |||
212 | xor eax, eax |
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465 | serge | 213 | ; add edi, new_app_base |
237 | serge | 214 | cld |
269 | serge | 215 | rep stosb |
247 | serge | 216 | @@: |
269 | serge | 217 | end if |
218 | |||
219 | ; release only virtual space, not phisical memory |
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220 | |||
221 | stdcall free_kernel_space, [file_base] |
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363 | serge | 222 | lea eax, [hdr_cmdline] |
223 | lea ebx, [cmdline] |
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224 | lea ecx, [filename] |
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225 | stdcall set_app_params ,[slot],eax,ebx,ecx,[flags] |
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237 | serge | 226 | |
227 | mov eax, [save_cr3] |
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228 | call set_cr3 |
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229 | |||
247 | serge | 230 | xor ebx, ebx |
231 | mov [application_table_status],ebx ;unlock application_table_status mutex |
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232 | mov eax,[process_number] ;set result |
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164 | serge | 233 | ret |
237 | serge | 234 | .failed: |
235 | mov eax, [save_cr3] |
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236 | call set_cr3 |
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269 | serge | 237 | .err: |
247 | serge | 238 | .err_hdr: |
239 | stdcall kernel_free,[file_base] |
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240 | .err_file: |
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237 | serge | 241 | xor eax, eax |
242 | mov [application_table_status],eax |
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321 | diamond | 243 | mov eax, ecx |
237 | serge | 244 | ret |
245 | endp |
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164 | serge | 246 | |
237 | serge | 247 | align 4 |
248 | test_app_header: |
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249 | virtual at eax |
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250 | APP_HEADER_00 APP_HEADER_00 |
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251 | end virtual |
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252 | virtual at eax |
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164 | serge | 253 | APP_HEADER_01 APP_HEADER_01 |
254 | end virtual |
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255 | |||
237 | serge | 256 | cmp dword [eax], 'MENU' |
257 | jne .fail |
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258 | cmp word [eax+4],'ET' |
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259 | jne .fail |
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164 | serge | 260 | |
237 | serge | 261 | cmp [eax+6], word '00' |
262 | jne .check_01_header |
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164 | serge | 263 | |
237 | serge | 264 | mov ecx,[APP_HEADER_00.start] |
265 | mov [ebx+0x08], ecx ;app_eip |
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266 | mov edx,[APP_HEADER_00.mem_size] |
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267 | mov [ebx+0x10], edx ;app_mem |
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268 | shr edx,1 |
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269 | sub edx,0x10 |
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270 | mov [ebx+0x0C], edx ;app_esp |
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271 | mov ecx,[APP_HEADER_00.i_param] |
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272 | mov [ebx], ecx ;app_cmdline |
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273 | mov [ebx+4], dword 0 ;app_path |
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269 | serge | 274 | mov edx, [APP_HEADER_00.i_end] |
275 | mov [ebx+0x14], edx |
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164 | serge | 276 | ret |
277 | |||
237 | serge | 278 | .check_01_header: |
164 | serge | 279 | |
237 | serge | 280 | cmp [eax+6],word '01' |
281 | jne .fail |
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282 | |||
283 | mov ecx,[APP_HEADER_01.start] |
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284 | mov [ebx+0x08], ecx ;app_eip |
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285 | mov edx,[APP_HEADER_01.mem_size] |
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381 | serge | 286 | |
287 | ; \begin{diamond}[20.08.2006] |
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288 | ; sanity check (functions 19,58 load app_i_end bytes and that must |
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289 | ; fit in allocated memory to prevent kernel faults) |
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290 | cmp edx,[APP_HEADER_01.i_end] |
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291 | jb .fail |
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292 | ; \end{diamond}[20.08.2006] |
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293 | |||
237 | serge | 294 | mov [ebx+0x10], edx ;app_mem |
295 | mov ecx,[APP_HEADER_01.stack_top] |
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296 | mov [ebx+0x0C], ecx ;app_esp |
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297 | mov edx,[APP_HEADER_01.i_param] |
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298 | mov [ebx], edx ;app_cmdline |
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299 | mov ecx,[APP_HEADER_01.i_icon] |
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300 | mov [ebx+4], ecx ;app_path |
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269 | serge | 301 | mov edx, [APP_HEADER_01.i_end] |
302 | mov [ebx+0x14], edx |
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237 | serge | 303 | ret |
304 | .fail: |
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164 | serge | 305 | xor eax, eax |
306 | ret |
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307 | |||
308 | align 4 |
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309 | proc get_new_process_place |
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310 | ;input: |
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311 | ; none |
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312 | ;result: |
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313 | ; eax=[new_process_place]<>0 - ok |
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314 | ; 0 - failed. |
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315 | ;This function find least empty slot. |
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316 | ;It doesn't increase [TASK_COUNT]! |
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317 | mov eax,CURRENT_TASK |
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318 | mov ebx,[TASK_COUNT] |
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319 | inc ebx |
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320 | shl ebx,5 |
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321 | add ebx,eax ;ebx - address of process information for (last+1) slot |
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322 | .newprocessplace: |
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323 | ;eax = address of process information for current slot |
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324 | cmp eax,ebx |
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325 | jz .endnewprocessplace ;empty slot after high boundary |
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326 | add eax,0x20 |
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327 | cmp word [eax+0xa],9 ;check process state, 9 means that process slot is empty |
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328 | jnz .newprocessplace |
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329 | .endnewprocessplace: |
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330 | mov ebx,eax |
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331 | sub eax,CURRENT_TASK |
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332 | shr eax,5 ;calculate slot index |
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333 | cmp eax,256 |
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334 | jge .failed ;it should be <256 |
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335 | mov word [ebx+0xa],9 ;set process state to 9 (for slot after hight boundary) |
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336 | ret |
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337 | .failed: |
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338 | xor eax,eax |
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339 | ret |
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340 | endp |
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341 | |||
342 | align 4 |
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269 | serge | 343 | proc create_app_space stdcall, app_size:dword,img_base:dword,img_size:dword |
164 | serge | 344 | locals |
345 | app_pages dd ? |
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346 | img_pages dd ? |
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347 | dir_addr dd ? |
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348 | app_tabs dd ? |
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349 | endl |
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350 | |||
276 | serge | 351 | mov ebx, pg_data.pg_mutex |
352 | call wait_mutex ;ebx |
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164 | serge | 353 | |
354 | xor eax, eax |
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355 | mov [dir_addr], eax |
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356 | |||
357 | mov eax, [app_size] |
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172 | serge | 358 | add eax, 4095 |
164 | serge | 359 | and eax, NOT(4095) |
360 | mov [app_size], eax |
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361 | mov ebx, eax |
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362 | shr eax, 12 |
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363 | mov [app_pages], eax |
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170 | serge | 364 | |
164 | serge | 365 | add ebx, 0x3FFFFF |
366 | and ebx, NOT(0x3FFFFF) |
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367 | shr ebx, 22 |
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368 | mov [app_tabs], ebx |
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369 | |||
170 | serge | 370 | mov ecx, [img_size] |
371 | add ecx, 4095 |
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372 | and ecx, NOT(4095) |
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164 | serge | 373 | |
170 | serge | 374 | mov [img_size], ecx |
375 | shr ecx, 12 |
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376 | mov [img_pages], ecx |
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164 | serge | 377 | |
170 | serge | 378 | if GREEDY_KERNEL |
379 | lea eax, [ecx+ebx+2] ;only image size |
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380 | else |
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381 | lea eax, [eax+ebx+2] ;all requested memory |
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382 | end if |
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383 | cmp eax, [pg_data.pages_free] |
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384 | ja .fail |
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385 | |||
164 | serge | 386 | call alloc_page |
387 | test eax, eax |
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388 | jz .fail |
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389 | mov [dir_addr], eax |
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390 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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391 | |||
392 | mov edi, [tmp_task_pdir] |
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465 | serge | 393 | mov ecx, (OS_BASE shr 20)/4 |
394 | xor eax, eax |
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164 | serge | 395 | cld |
465 | serge | 396 | rep stosd |
397 | |||
398 | mov ecx, (OS_BASE shr 20)/4 |
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399 | mov esi, sys_pgdir+(OS_BASE shr 20) |
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164 | serge | 400 | rep movsd |
401 | |||
378 | serge | 402 | mov eax, [dir_addr] |
403 | or eax, PG_SW |
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465 | serge | 404 | mov [edi-4096+(page_tabs shr 20)], eax |
378 | serge | 405 | |
465 | serge | 406 | and eax, -4096 |
164 | serge | 407 | call set_cr3 |
408 | |||
409 | mov edx, [app_tabs] |
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410 | mov edi, new_app_base |
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411 | @@: |
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412 | call alloc_page |
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413 | test eax, eax |
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414 | jz .fail |
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415 | |||
188 | serge | 416 | stdcall map_page_table, edi, eax |
164 | serge | 417 | add edi, 0x00400000 |
418 | dec edx |
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419 | jnz @B |
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420 | |||
421 | mov edi, new_app_base |
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422 | shr edi, 10 |
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365 | serge | 423 | add edi, page_tabs |
269 | serge | 424 | |
164 | serge | 425 | mov ecx, [app_tabs] |
426 | shl ecx, 10 |
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427 | xor eax, eax |
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428 | rep stosd |
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429 | |||
269 | serge | 430 | mov ecx, [img_pages] |
431 | mov ebx, PG_UW |
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164 | serge | 432 | mov edx, new_app_base |
269 | serge | 433 | mov esi, [img_base] |
434 | mov edi, new_app_base |
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435 | shr esi, 10 |
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436 | shr edi, 10 |
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365 | serge | 437 | add esi, page_tabs |
438 | add edi, page_tabs |
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269 | serge | 439 | .remap: |
440 | lodsd |
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441 | or eax, ebx ; force user level r/w access |
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442 | stosd |
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443 | add edx, 0x1000 |
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444 | dec [app_pages] |
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445 | dec ecx |
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446 | jnz .remap |
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447 | |||
448 | mov ecx, [app_pages] |
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449 | test ecx, ecx |
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450 | jz .done |
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451 | |||
452 | if GREEDY_KERNEL |
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453 | mov eax, 0x02 |
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454 | .reserve: |
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455 | stosd |
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456 | invlpg [edx] |
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457 | add edx, 4096 |
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458 | dec ecx |
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459 | jnz .reserve |
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460 | else |
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461 | |||
164 | serge | 462 | .alloc: |
463 | call alloc_page |
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464 | test eax, eax |
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465 | jz .fail |
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466 | |||
467 | stdcall map_page,edx,eax,dword PG_UW |
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468 | add edx, 0x1000 |
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269 | serge | 469 | dec [app_pages] |
164 | serge | 470 | jnz .alloc |
269 | serge | 471 | end if |
164 | serge | 472 | |
269 | serge | 473 | .done: |
164 | serge | 474 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
475 | |||
476 | dec [pg_data.pg_mutex] |
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477 | mov eax, [dir_addr] |
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478 | ret |
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479 | .fail: |
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480 | dec [pg_data.pg_mutex] |
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481 | cmp [dir_addr], 0 |
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357 | serge | 482 | je @f |
164 | serge | 483 | stdcall destroy_app_space, [dir_addr] |
484 | @@: |
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485 | xor eax, eax |
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486 | ret |
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487 | endp |
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488 | |||
489 | align 4 |
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490 | set_cr3: |
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465 | serge | 491 | |
492 | mov ebx, [current_slot] |
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493 | mov [ebx+APPDATA.dir_table], eax |
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164 | serge | 494 | mov cr3, eax |
495 | ret |
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496 | |||
497 | align 4 |
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498 | proc destroy_page_table stdcall, pg_tab:dword |
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499 | |||
500 | push esi |
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501 | |||
502 | mov esi, [pg_tab] |
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503 | mov ecx, 1024 |
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504 | .free: |
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505 | mov eax, [esi] |
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506 | test eax, 1 |
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507 | jz .next |
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508 | call free_page |
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509 | .next: |
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510 | add esi, 4 |
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511 | dec ecx |
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512 | jnz .free |
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513 | pop esi |
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514 | ret |
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515 | endp |
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516 | |||
517 | align 4 |
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518 | proc destroy_app_space stdcall, pg_dir:dword |
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519 | |||
276 | serge | 520 | mov ebx, pg_data.pg_mutex |
521 | call wait_mutex ;ebx |
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164 | serge | 522 | |
523 | xor edx,edx |
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524 | mov eax,0x2 |
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525 | mov ebx, [pg_dir] |
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526 | .loop: |
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527 | ;eax = current slot of process |
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528 | mov ecx,eax |
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529 | shl ecx,5 |
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530 | cmp byte [CURRENT_TASK+ecx+0xa],9 ;if process running? |
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531 | jz @f ;skip empty slots |
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532 | shl ecx,3 |
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380 | serge | 533 | cmp [SLOT_BASE+ecx+0xB8],ebx ;compare page directory addresses |
164 | serge | 534 | jnz @f |
535 | inc edx ;thread found |
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536 | @@: |
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537 | inc eax |
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538 | cmp eax,[TASK_COUNT] ;exit loop if we look through all processes |
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539 | jle .loop |
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540 | |||
541 | ;edx = number of threads |
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542 | ;our process is zombi so it isn't counted |
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543 | cmp edx,1 |
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544 | jg .exit |
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545 | ;if there isn't threads then clear memory. |
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546 | |||
547 | mov eax, [pg_dir] |
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548 | and eax, not 0xFFF |
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549 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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550 | mov esi, [tmp_task_pdir] |
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465 | serge | 551 | mov edi, (OS_BASE shr 20)/4 |
164 | serge | 552 | .destroy: |
553 | mov eax, [esi] |
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554 | test eax, 1 |
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555 | jz .next |
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556 | and eax, not 0xFFF |
||
557 | stdcall map_page,[tmp_task_ptab],eax,dword PG_SW |
||
558 | stdcall destroy_page_table, [tmp_task_ptab] |
||
559 | mov eax, [esi] |
||
560 | call free_page |
||
561 | .next: |
||
562 | add esi, 4 |
||
563 | dec edi |
||
564 | jnz .destroy |
||
565 | |||
566 | mov eax, [pg_dir] |
||
567 | call free_page |
||
568 | .exit: |
||
569 | stdcall map_page,[tmp_task_ptab],dword 0,dword PG_UNMAP |
||
570 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
||
571 | dec [pg_data.pg_mutex] |
||
572 | ret |
||
573 | endp |
||
574 | |||
520 | serge | 575 | align 4 |
576 | get_pid: |
||
577 | mov eax, [TASK_DATA] |
||
578 | mov eax, [eax+4] |
||
579 | ret |
||
580 | |||
164 | serge | 581 | pid_to_slot: |
582 | ;Input: |
||
583 | ; eax - pid of process |
||
584 | ;Output: |
||
585 | ; eax - slot of process or 0 if process don't exists |
||
586 | ;Search process by PID. |
||
587 | push ebx |
||
588 | push ecx |
||
589 | mov ebx,[TASK_COUNT] |
||
590 | shl ebx,5 |
||
591 | mov ecx,2*32 |
||
592 | |||
593 | .loop: |
||
594 | ;ecx=offset of current process info entry |
||
595 | ;ebx=maximum permitted offset |
||
596 | cmp byte [CURRENT_TASK+ecx+0xa],9 |
||
597 | jz .endloop ;skip empty slots |
||
598 | cmp [CURRENT_TASK+ecx+0x4],eax ;check PID |
||
599 | jz .pid_found |
||
600 | .endloop: |
||
601 | add ecx,32 |
||
602 | cmp ecx,ebx |
||
603 | jle .loop |
||
604 | |||
605 | pop ecx |
||
606 | pop ebx |
||
607 | xor eax,eax |
||
608 | ret |
||
609 | |||
610 | .pid_found: |
||
611 | shr ecx,5 |
||
612 | mov eax,ecx ;convert offset to index of slot |
||
613 | pop ecx |
||
614 | pop ebx |
||
615 | ret |
||
616 | |||
617 | check_region: |
||
618 | ;input: |
||
619 | ; ebx - start of buffer |
||
620 | ; ecx - size of buffer |
||
621 | ;result: |
||
622 | ; eax = 1 region lays in app memory |
||
623 | ; eax = 0 region don't lays in app memory |
||
624 | mov eax,[CURRENT_TASK] |
||
625 | jmp check_process_region |
||
626 | ;----------------------------------------------------------------------------- |
||
627 | check_process_region: |
||
628 | ;input: |
||
629 | ; eax - slot |
||
630 | ; ebx - start of buffer |
||
631 | ; ecx - size of buffer |
||
632 | ;result: |
||
633 | ; eax = 1 region lays in app memory |
||
634 | ; eax = 0 region don't lays in app memory |
||
635 | |||
636 | test ecx,ecx |
||
637 | jle .ok |
||
638 | shl eax,5 |
||
639 | cmp word [CURRENT_TASK+eax+0xa],0 |
||
640 | jnz .failed |
||
641 | shl eax,3 |
||
380 | serge | 642 | mov eax,[SLOT_BASE+eax+0xb8] |
164 | serge | 643 | test eax,eax |
644 | jz .failed |
||
645 | |||
646 | mov eax,1 |
||
647 | ret |
||
648 | |||
649 | |||
650 | ; call MEM_Get_Linear_Address |
||
651 | ; push ebx |
||
652 | ; push ecx |
||
653 | ; push edx |
||
654 | ; mov edx,ebx |
||
655 | ; and edx,not (4096-1) |
||
656 | ; sub ebx,edx |
||
657 | ; add ecx,ebx |
||
658 | ; mov ebx,edx |
||
659 | ; add ecx,(4096-1) |
||
660 | ; and ecx,not (4096-1) |
||
661 | ;.loop: |
||
662 | ;;eax - linear address of page directory |
||
663 | ;;ebx - current page |
||
664 | ;;ecx - current size |
||
665 | ; mov edx,ebx |
||
666 | ; shr edx,22 |
||
667 | ; mov edx,[eax+4*edx] |
||
668 | ; and edx,not (4096-1) |
||
669 | ; test edx,edx |
||
670 | ; jz .failed1 |
||
671 | ; push eax |
||
672 | ; mov eax,edx |
||
673 | ; call MEM_Get_Linear_Address |
||
674 | ; mov edx,ebx |
||
675 | ; shr edx,12 |
||
676 | ; and edx,(1024-1) |
||
677 | ; mov eax,[eax+4*edx] |
||
678 | ; and eax,not (4096-1) |
||
679 | ; test eax,eax |
||
680 | ; pop eax |
||
681 | ; jz .failed1 |
||
682 | ; add ebx,4096 |
||
683 | ; sub ecx,4096 |
||
684 | ; jg .loop |
||
685 | ; pop edx |
||
686 | ; pop ecx |
||
687 | ; pop ebx |
||
688 | .ok: |
||
689 | mov eax,1 |
||
690 | ret |
||
691 | ; |
||
692 | ;.failed1: |
||
693 | ; pop edx |
||
694 | ; pop ecx |
||
695 | ; pop ebx |
||
696 | .failed: |
||
697 | xor eax,eax |
||
698 | ret |
||
699 | |||
700 | align 4 |
||
701 | proc read_process_memory |
||
702 | ;Input: |
||
703 | ; eax - process slot |
||
704 | ; ebx - buffer address |
||
705 | ; ecx - buffer size |
||
706 | ; edx - start address in other process |
||
707 | ;Output: |
||
708 | ; eax - number of bytes read. |
||
709 | locals |
||
710 | slot dd ? |
||
711 | buff dd ? |
||
712 | r_count dd ? |
||
713 | offset dd ? |
||
714 | tmp_r_cnt dd ? |
||
715 | endl |
||
716 | |||
717 | mov [slot], eax |
||
718 | mov [buff], ebx |
||
521 | diamond | 719 | and [r_count], 0 |
164 | serge | 720 | mov [tmp_r_cnt], ecx |
721 | mov [offset], edx |
||
722 | |||
723 | pushad |
||
724 | .read_mem: |
||
725 | mov edx, [offset] |
||
726 | mov ebx, [tmp_r_cnt] |
||
727 | |||
728 | mov ecx, 0x400000 |
||
729 | and edx, 0x3FFFFF |
||
730 | sub ecx, edx |
||
731 | cmp ecx, ebx |
||
732 | jbe @f |
||
733 | mov ecx, ebx |
||
734 | @@: |
||
735 | cmp ecx, 0x8000 |
||
736 | jna @F |
||
737 | mov ecx, 0x8000 |
||
738 | @@: |
||
739 | mov eax, [slot] |
||
740 | shl eax,8 |
||
741 | mov ebx, [offset] |
||
465 | serge | 742 | ; add ebx, new_app_base |
164 | serge | 743 | push ecx |
744 | stdcall map_memEx, [proc_mem_map],\ |
||
380 | serge | 745 | [SLOT_BASE+eax+0xB8],\ |
164 | serge | 746 | ebx, ecx |
747 | pop ecx |
||
748 | |||
749 | mov esi, [offset] |
||
750 | and esi, 0xfff |
||
751 | add esi, [proc_mem_map] |
||
752 | mov edi, [buff] |
||
753 | mov edx, ecx |
||
754 | rep movsb |
||
521 | diamond | 755 | add [r_count], edx |
164 | serge | 756 | |
757 | add [offset], edx |
||
758 | sub [tmp_r_cnt], edx |
||
759 | jnz .read_mem |
||
760 | |||
761 | popad |
||
762 | mov eax, [r_count] |
||
763 | ret |
||
764 | endp |
||
765 | |||
766 | align 4 |
||
767 | proc write_process_memory |
||
768 | ;Input: |
||
769 | ; eax - process slot |
||
770 | ; ebx - buffer address |
||
771 | ; ecx - buffer size |
||
772 | ; edx - start address in other process |
||
773 | ;Output: |
||
774 | ; eax - number of bytes written |
||
775 | |||
776 | locals |
||
777 | slot dd ? |
||
778 | buff dd ? |
||
779 | w_count dd ? |
||
780 | offset dd ? |
||
781 | tmp_w_cnt dd ? |
||
782 | endl |
||
783 | |||
784 | mov [slot], eax |
||
785 | mov [buff], ebx |
||
521 | diamond | 786 | and [w_count], 0 |
164 | serge | 787 | mov [tmp_w_cnt], ecx |
788 | mov [offset], edx |
||
789 | |||
790 | pushad |
||
791 | .read_mem: |
||
792 | mov edx, [offset] |
||
793 | mov ebx, [tmp_w_cnt] |
||
794 | |||
795 | mov ecx, 0x400000 |
||
796 | and edx, 0x3FFFFF |
||
797 | sub ecx, edx |
||
798 | cmp ecx, ebx |
||
799 | jbe @f |
||
800 | mov ecx, ebx |
||
801 | @@: |
||
802 | cmp ecx, 0x8000 |
||
803 | jna @F |
||
804 | mov ecx, 0x8000 |
||
805 | @@: |
||
806 | mov eax, [slot] |
||
807 | shl eax,8 |
||
808 | mov ebx, [offset] |
||
465 | serge | 809 | ; add ebx, new_app_base |
164 | serge | 810 | push ecx |
811 | stdcall map_memEx, [proc_mem_map],\ |
||
380 | serge | 812 | [SLOT_BASE+eax+0xB8],\ |
164 | serge | 813 | ebx, ecx |
814 | pop ecx |
||
815 | |||
816 | mov edi, [offset] |
||
817 | and edi, 0xfff |
||
818 | add edi, [proc_mem_map] |
||
819 | mov esi, [buff] |
||
820 | mov edx, ecx |
||
821 | rep movsb |
||
822 | |||
521 | diamond | 823 | add [w_count], edx |
164 | serge | 824 | add [offset], edx |
825 | sub [tmp_w_cnt], edx |
||
826 | jnz .read_mem |
||
827 | |||
828 | popad |
||
829 | mov eax, [w_count] |
||
830 | ret |
||
831 | endp |
||
832 | |||
833 | align 4 |
||
834 | proc new_sys_threads |
||
835 | locals |
||
836 | slot dd ? |
||
237 | serge | 837 | app_cmdline dd ? ;0x00 |
838 | app_path dd ? ;0x04 |
||
839 | app_eip dd ? ;0x08 |
||
840 | app_esp dd ? ;0x0C |
||
841 | app_mem dd ? ;0x10 |
||
164 | serge | 842 | endl |
843 | |||
237 | serge | 844 | cmp eax,1 |
845 | jne .failed ;other subfunctions |
||
164 | serge | 846 | |
237 | serge | 847 | xor eax,eax |
848 | mov [app_cmdline], eax |
||
849 | mov [app_path], eax |
||
850 | mov [app_eip], ebx |
||
851 | mov [app_esp], ecx |
||
164 | serge | 852 | |
506 | mikedld | 853 | ;mov esi,new_process_loading |
854 | ;call sys_msg_board_str |
||
855 | DEBUGF 1,"%s",new_process_loading |
||
164 | serge | 856 | .wait_lock: |
857 | cmp [application_table_status],0 |
||
858 | je .get_lock |
||
859 | call change_task |
||
860 | jmp .wait_lock |
||
861 | |||
862 | .get_lock: |
||
863 | mov eax, 1 |
||
864 | xchg eax, [application_table_status] |
||
865 | cmp eax, 0 |
||
866 | jne .wait_lock |
||
867 | |||
868 | call set_application_table_status |
||
869 | |||
870 | call get_new_process_place |
||
871 | test eax, eax |
||
872 | jz .failed |
||
873 | |||
874 | mov [slot], eax |
||
875 | |||
465 | serge | 876 | mov esi,[current_slot] |
237 | serge | 877 | mov ebx,esi ;ebx=esi - pointer to extended information about current thread |
164 | serge | 878 | |
237 | serge | 879 | mov edi, eax |
164 | serge | 880 | shl edi,8 |
380 | serge | 881 | add edi,SLOT_BASE |
237 | serge | 882 | mov edx,edi ;edx=edi - pointer to extended infomation about new thread |
164 | serge | 883 | mov ecx,256/4 |
237 | serge | 884 | xor eax, eax |
885 | cld |
||
886 | rep stosd ;clean extended information about new thread |
||
887 | mov esi,ebx |
||
164 | serge | 888 | mov edi,edx |
889 | mov ecx,11 |
||
237 | serge | 890 | rep movsb ;copy process name |
164 | serge | 891 | |
237 | serge | 892 | mov eax,[ebx+APPDATA.heap_base] |
893 | mov [edx+APPDATA.heap_base], eax |
||
164 | serge | 894 | |
237 | serge | 895 | mov ecx,[ebx+APPDATA.heap_top] |
896 | mov [edx+APPDATA.heap_top], ecx |
||
897 | |||
898 | mov eax,[ebx+APPDATA.mem_size] |
||
899 | mov [edx+APPDATA.mem_size], eax |
||
900 | |||
901 | mov ecx,[ebx+APPDATA.dir_table] |
||
902 | mov [edx+APPDATA.dir_table],ecx ;copy page directory |
||
903 | |||
904 | lea eax, [app_cmdline] |
||
905 | stdcall set_app_params ,[slot],eax,dword 0,\ |
||
906 | dword 0,dword 0 |
||
907 | |||
506 | mikedld | 908 | ;mov esi,new_process_running |
909 | ;call sys_msg_board_str ;output information about succefull startup |
||
910 | DEBUGF 1,"%s",new_process_running |
||
164 | serge | 911 | |
912 | mov [application_table_status],0 ;unlock application_table_status mutex |
||
913 | mov eax,[process_number] ;set result |
||
914 | ret |
||
915 | .failed: |
||
916 | mov [application_table_status],0 |
||
917 | mov eax,-1 |
||
918 | ret |
||
919 | endp |
||
920 | |||
276 | serge | 921 | ; param |
922 | ; ebx=mutex |
||
923 | |||
164 | serge | 924 | align 4 |
276 | serge | 925 | wait_mutex: |
926 | push eax |
||
927 | push ebx |
||
321 | diamond | 928 | .do_wait: |
164 | serge | 929 | cmp dword [ebx],0 |
930 | je .get_lock |
||
931 | call change_task |
||
321 | diamond | 932 | jmp .do_wait |
164 | serge | 933 | .get_lock: |
934 | mov eax, 1 |
||
935 | xchg eax, [ebx] |
||
936 | test eax, eax |
||
321 | diamond | 937 | jnz .do_wait |
276 | serge | 938 | pop ebx |
939 | pop eax |
||
164 | serge | 940 | ret |
941 | |||
465 | serge | 942 | EFL_IF equ 0x0200 |
943 | EFL_IOPL1 equ 0x1000 |
||
944 | EFL_IOPL2 equ 0x2000 |
||
945 | EFL_IOPL3 equ 0x3000 |
||
946 | |||
947 | |||
237 | serge | 948 | align 4 |
949 | proc set_app_params stdcall,slot:dword, params:dword,\ |
||
950 | cmd_line:dword, app_path:dword, flags:dword |
||
164 | serge | 951 | |
357 | serge | 952 | locals |
953 | pl0_stack dd ? |
||
954 | endl |
||
237 | serge | 955 | |
392 | serge | 956 | stdcall kernel_alloc, RING0_STACK_SIZE+512 |
357 | serge | 957 | mov [pl0_stack], eax |
958 | |||
392 | serge | 959 | lea edi, [eax+RING0_STACK_SIZE] |
357 | serge | 960 | |
961 | mov eax, [slot] |
||
962 | mov ebx, eax |
||
963 | |||
964 | shl eax, 8 |
||
380 | serge | 965 | mov [eax+SLOT_BASE+APPDATA.fpu_state], edi |
966 | mov [eax+SLOT_BASE+APPDATA.fpu_handler], 0 |
||
967 | mov [eax+SLOT_BASE+APPDATA.sse_handler], 0 |
||
357 | serge | 968 | |
465 | serge | 969 | ;set default io permission map |
970 | mov [eax+SLOT_BASE+APPDATA.io_map],\ |
||
971 | (tss._io_map_0-OS_BASE+PG_MAP) |
||
972 | mov [eax+SLOT_BASE+APPDATA.io_map+4],\ |
||
973 | (tss._io_map_1-OS_BASE+PG_MAP) |
||
974 | |||
357 | serge | 975 | mov esi, fpu_data |
237 | serge | 976 | mov ecx, 512/4 |
977 | rep movsd |
||
978 | |||
357 | serge | 979 | cmp ebx,[TASK_COUNT] |
980 | jle .noinc |
||
981 | inc dword [TASK_COUNT] ;update number of processes |
||
237 | serge | 982 | .noinc: |
281 | serge | 983 | shl ebx,8 |
380 | serge | 984 | lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET] |
985 | mov [SLOT_BASE+APPDATA.fd_ev+ebx],edx |
||
986 | mov [SLOT_BASE+APPDATA.bk_ev+ebx],edx |
||
354 | serge | 987 | |
988 | add edx, APP_OBJ_OFFSET-APP_EV_OFFSET |
||
380 | serge | 989 | mov [SLOT_BASE+APPDATA.fd_obj+ebx],edx |
990 | mov [SLOT_BASE+APPDATA.bk_obj+ebx],edx |
||
237 | serge | 991 | |
281 | serge | 992 | mov ecx, [def_cursor] |
380 | serge | 993 | mov [SLOT_BASE+APPDATA.cursor+ebx],ecx |
357 | serge | 994 | mov eax, [pl0_stack] |
380 | serge | 995 | mov [SLOT_BASE+APPDATA.pl0_stack+ebx],eax |
281 | serge | 996 | |
521 | diamond | 997 | push ebx |
998 | stdcall kernel_alloc, 0x1000 |
||
999 | pop ebx |
||
1000 | mov esi,[current_slot] |
||
1001 | mov esi,[esi+APPDATA.cur_dir] |
||
1002 | mov ecx,0x1000/4 |
||
1003 | mov edi,eax |
||
1004 | mov [ebx+SLOT_BASE+APPDATA.cur_dir],eax |
||
1005 | rep movsd |
||
1006 | |||
281 | serge | 1007 | shr ebx,3 |
237 | serge | 1008 | mov eax, new_app_base |
1009 | mov dword [CURRENT_TASK+ebx+0x10],eax |
||
1010 | |||
1011 | .add_command_line: |
||
1012 | mov edx,[params] |
||
1013 | mov edx,[edx] ;app_cmdline |
||
525 | diamond | 1014 | test edx,edx |
1015 | jz @f ;application doesn't need parameters |
||
281 | serge | 1016 | |
1017 | mov eax, edx |
||
1018 | add eax, 256 |
||
1019 | jc @f |
||
1020 | |||
380 | serge | 1021 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
281 | serge | 1022 | ja @f |
1023 | |||
525 | diamond | 1024 | mov byte [edx], 0 ;force empty string if no cmdline given |
1025 | mov eax, [cmd_line] |
||
1026 | test eax, eax |
||
1027 | jz @f |
||
1028 | stdcall strncpy, edx, eax, 256 |
||
237 | serge | 1029 | @@: |
1030 | mov edx,[params] |
||
1031 | mov edx, [edx+4] ;app_path |
||
1032 | test edx,edx |
||
1033 | jz @F ;application don't need path of file |
||
465 | serge | 1034 | mov eax, edx |
1035 | add eax, 1024 |
||
1036 | jc @f |
||
1037 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
||
1038 | ja @f |
||
519 | serge | 1039 | stdcall strncpy, edx, [app_path], 1024 |
237 | serge | 1040 | @@: |
1041 | mov ebx,[slot] |
||
1042 | mov eax,ebx |
||
1043 | shl ebx,5 |
||
465 | serge | 1044 | lea ecx,[draw_data+ebx] ;ecx - pointer to draw data |
1045 | |||
237 | serge | 1046 | ; set window state to 'normal' (non-minimized/maximized/rolled-up) state |
1047 | mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL |
||
1048 | mov [ebx+window_data+WDATA.fl_redraw], 1 |
||
1049 | add ebx,CURRENT_TASK ;ebx - pointer to information about process |
||
1050 | mov [ebx+TASKDATA.wnd_number],al;set window number on screen = process slot |
||
1051 | |||
1052 | mov [ebx+TASKDATA.event_mask],dword 1+2+4 ;set default event flags (see 40 function) |
||
1053 | |||
1054 | inc dword [process_number] |
||
1055 | mov eax,[process_number] |
||
1056 | mov [ebx+4],eax ;set PID |
||
1057 | |||
1058 | ;set draw data to full screen |
||
1059 | |||
1060 | mov [ecx+0],dword 0 |
||
1061 | mov [ecx+4],dword 0 |
||
381 | serge | 1062 | mov eax,[ScreenWidth] |
237 | serge | 1063 | mov [ecx+8],eax |
381 | serge | 1064 | mov eax,[ScreenHeight] |
237 | serge | 1065 | mov [ecx+12],eax |
1066 | |||
465 | serge | 1067 | mov ebx, [pl0_stack] |
1068 | mov esi,[params] |
||
1069 | lea ecx, [ebx+REG_EIP] |
||
237 | serge | 1070 | xor eax, eax |
1071 | |||
465 | serge | 1072 | mov [ebx+REG_RET], dword irq0.return |
1073 | mov [ebx+REG_EDI], eax |
||
1074 | mov [ebx+REG_ESI], eax |
||
1075 | mov [ebx+REG_EBP], eax |
||
1076 | mov [ebx+REG_ESP], ecx ;ebx+REG_EIP |
||
1077 | mov [ebx+REG_EBX], eax |
||
1078 | mov [ebx+REG_EDX], eax |
||
1079 | mov [ebx+REG_ECX], eax |
||
1080 | mov [ebx+REG_EAX], eax |
||
237 | serge | 1081 | |
1082 | mov eax, [esi+0x08] ;app_eip |
||
465 | serge | 1083 | mov [ebx+REG_EIP], eax ;app_entry |
1084 | mov [ebx+REG_CS], dword app_code |
||
1085 | mov [ebx+REG_EFLAGS], dword EFL_IOPL1+EFL_IF |
||
1086 | |||
237 | serge | 1087 | mov eax, [esi+0x0C] ;app_esp |
465 | serge | 1088 | mov [ebx+REG_APP_ESP], eax ;app_stack |
1089 | mov [ebx+REG_SS], dword app_data |
||
237 | serge | 1090 | |
465 | serge | 1091 | lea ecx, [ebx+REG_RET] |
1092 | mov ebx, [slot] |
||
1093 | shl ebx, 8 |
||
1094 | mov [ebx+SLOT_BASE+APPDATA.saved_esp], ecx |
||
237 | serge | 1095 | |
1096 | ;flush keyboard and buttons queue |
||
1097 | mov [KEY_COUNT],byte 0 |
||
1098 | mov [BTN_COUNT],byte 0 |
||
1099 | |||
1100 | mov edi,[slot] |
||
1101 | shl edi,5 |
||
1102 | add edi,window_data |
||
1103 | mov ebx,[slot] |
||
1104 | movzx esi,word [WIN_STACK+ebx*2] |
||
1105 | lea esi,[WIN_POS+esi*2] |
||
1106 | call windowactivate ;gui initialization |
||
1107 | |||
1108 | mov ebx,[slot] |
||
1109 | shl ebx,5 |
||
1110 | mov [CURRENT_TASK+ebx+0xa],byte 0 ;set process state - running |
||
1111 | ; set if debuggee |
||
1112 | mov eax, [flags] |
||
1113 | test byte [flags], 1 |
||
1114 | jz .no_debug |
||
1115 | mov [CURRENT_TASK+ebx+0xa],byte 1 ;set process state - suspended |
||
1116 | mov eax,[CURRENT_TASK] |
||
380 | serge | 1117 | mov [SLOT_BASE+ebx*8+0xac],eax ;set debugger PID - current |
237 | serge | 1118 | .no_debug: |
506 | mikedld | 1119 | ;mov esi,new_process_running |
1120 | ;call sys_msg_board_str ;output information about succefull startup |
||
1121 | DEBUGF 1,"%s",new_process_running |
||
237 | serge | 1122 | ret |
1123 | endp |
||
1124 | |||
164 | serge | 1125 | include "debug.inc"256 |
1126 |