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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2455 | mario79 | 3 | ;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;; |
2288 | clevermous | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | $Revision: 2625 $ |
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9 | |||
10 | |||
11 | GREEDY_KERNEL equ 0 |
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12 | |||
2384 | hidnplayr | 13 | struct APP_HEADER_00_ |
14 | banner dq ? |
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15 | version dd ? ;+8 |
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16 | start dd ? ;+12 |
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17 | i_end dd ? ;+16 |
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18 | mem_size dd ? ;+20 |
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19 | i_param dd ? ;+24 |
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20 | ends |
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2288 | clevermous | 21 | |
2384 | hidnplayr | 22 | struct APP_HEADER_01_ |
23 | banner dq ? |
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24 | version dd ? ;+8 |
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25 | start dd ? ;+12 |
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26 | i_end dd ? ;+16 |
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27 | mem_size dd ? ;+20 |
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28 | stack_top dd ? ;+24 |
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29 | i_param dd ? ;+28 |
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30 | i_icon dd ? ;+32 |
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31 | ends |
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2288 | clevermous | 32 | |
33 | |||
2384 | hidnplayr | 34 | struct APP_PARAMS |
35 | app_cmdline dd ? ;0x00 |
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36 | app_path dd ? ;0x04 |
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37 | app_eip dd ? ;0x08 |
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38 | app_esp dd ? ;0x0C |
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39 | app_mem dd ? ;0x10 |
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40 | ends |
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2288 | clevermous | 41 | |
42 | macro _clear_ op |
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43 | { mov ecx, op/4 |
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44 | xor eax, eax |
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45 | cld |
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46 | rep stosd |
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47 | } |
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48 | |||
49 | fs_execute_from_sysdir: |
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50 | xor ebx, ebx |
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51 | fs_execute_from_sysdir_param: |
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52 | xor edx, edx |
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53 | mov esi, sysdir_path |
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54 | |||
55 | align 4 |
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56 | proc fs_execute |
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57 | |||
58 | ;fn_read:dword, file_size:dword, cluster:dword |
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59 | |||
60 | ; ebx - cmdline |
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61 | ; edx - flags |
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62 | ; ebp - full filename |
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63 | ; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it |
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64 | |||
65 | locals |
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66 | cmdline rd 64 ;256/4 |
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67 | filename rd 256 ;1024/4 |
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68 | flags dd ? |
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69 | |||
70 | save_cr3 dd ? |
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71 | slot dd ? |
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72 | slot_base dd ? |
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73 | file_base dd ? |
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74 | file_size dd ? |
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2503 | mario79 | 75 | handle dd ? ;temp. for default cursor handle for curr. thread |
2288 | clevermous | 76 | ;app header data |
77 | hdr_cmdline dd ? ;0x00 |
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78 | hdr_path dd ? ;0x04 |
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79 | hdr_eip dd ? ;0x08 |
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80 | hdr_esp dd ? ;0x0C |
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81 | hdr_mem dd ? ;0x10 |
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82 | hdr_i_end dd ? ;0x14 |
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83 | endl |
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84 | |||
2498 | mario79 | 85 | pushad |
2288 | clevermous | 86 | |
2586 | mario79 | 87 | cmp [SCR_MODE], word 0x13 |
88 | jbe @f |
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2503 | mario79 | 89 | pushad |
90 | stdcall set_cursor, [def_cursor_clock] |
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91 | mov [handle], eax |
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92 | mov [redrawmouse_unconditional], 1 |
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93 | call __sys_draw_pointer |
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94 | popad |
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2586 | mario79 | 95 | @@: |
2288 | clevermous | 96 | mov [flags], edx |
97 | |||
98 | ; [ebp] pointer to filename |
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99 | |||
100 | lea edi, [filename] |
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101 | lea ecx, [edi+1024] |
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102 | mov al, '/' |
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103 | stosb |
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104 | @@: |
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105 | cmp edi, ecx |
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106 | jae .bigfilename |
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107 | lodsb |
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108 | stosb |
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109 | test al, al |
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110 | jnz @b |
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111 | mov esi, [ebp] |
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112 | test esi, esi |
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113 | jz .namecopied |
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114 | mov byte [edi-1], '/' |
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115 | @@: |
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116 | cmp edi, ecx |
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117 | jae .bigfilename |
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118 | lodsb |
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119 | stosb |
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120 | test al, al |
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121 | jnz @b |
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122 | jmp .namecopied |
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123 | .bigfilename: |
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124 | popad |
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125 | mov eax, -ERROR_FILE_NOT_FOUND |
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126 | |||
2503 | mario79 | 127 | jmp .final |
128 | |||
2288 | clevermous | 129 | .namecopied: |
130 | |||
131 | mov [cmdline], ebx |
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132 | test ebx, ebx |
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133 | jz @F |
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134 | |||
135 | lea eax, [cmdline] |
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136 | mov dword [eax+252], 0 |
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137 | stdcall strncpy, eax, ebx, 255 |
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138 | @@: |
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139 | lea eax, [filename] |
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140 | stdcall load_file, eax |
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2497 | mario79 | 141 | |
2288 | clevermous | 142 | mov esi, -ERROR_FILE_NOT_FOUND |
143 | test eax, eax |
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144 | jz .err_file |
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145 | |||
146 | mov [file_base], eax |
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147 | mov [file_size], ebx |
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148 | |||
149 | lea ebx, [hdr_cmdline] |
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150 | call test_app_header |
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151 | mov esi, -0x1F |
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152 | test eax, eax |
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153 | jz .err_hdr |
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154 | |||
155 | .wait_lock: |
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156 | cmp [application_table_status], 0 |
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157 | je .get_lock |
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158 | call change_task |
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159 | jmp .wait_lock |
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160 | |||
161 | .get_lock: |
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162 | mov eax, 1 |
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163 | xchg eax, [application_table_status] |
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164 | test eax, eax |
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165 | jnz .wait_lock |
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166 | |||
167 | call set_application_table_status |
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168 | |||
169 | call get_new_process_place |
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170 | test eax, eax |
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171 | mov esi, -0x20 ; too many processes |
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172 | jz .err |
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173 | |||
174 | mov [slot], eax |
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175 | shl eax, 8 |
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176 | add eax, SLOT_BASE |
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177 | mov [slot_base], eax |
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178 | mov edi, eax |
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179 | _clear_ 256 ;clean extended information about process |
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180 | |||
181 | ; write application name |
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182 | lea eax, [filename] |
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183 | stdcall strrchr, eax, '/' ; now eax points to name without path |
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184 | |||
185 | lea esi, [eax+1] |
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186 | test eax, eax |
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187 | jnz @F |
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188 | lea esi, [filename] |
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189 | @@: |
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2625 | mario79 | 190 | mov ecx, 11 ; 11 chars for name! 8 - is old value! |
2288 | clevermous | 191 | mov edi, [slot_base] |
192 | .copy_process_name_loop: |
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193 | lodsb |
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194 | cmp al, '.' |
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195 | jz .copy_process_name_done |
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196 | test al, al |
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197 | jz .copy_process_name_done |
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198 | stosb |
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199 | loop .copy_process_name_loop |
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200 | .copy_process_name_done: |
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201 | |||
202 | mov ebx, cr3 |
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203 | mov [save_cr3], ebx |
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204 | |||
205 | stdcall create_app_space, [hdr_mem], [file_base], [file_size] |
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206 | mov esi, -30; no memory |
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207 | test eax, eax |
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208 | jz .failed |
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209 | |||
210 | mov ebx, [slot_base] |
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211 | mov [ebx+APPDATA.dir_table], eax |
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212 | mov eax, [hdr_mem] |
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213 | mov [ebx+APPDATA.mem_size], eax |
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214 | |||
215 | xor edx, edx |
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216 | cmp word [6], '02' |
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217 | jne @f |
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218 | |||
219 | not edx |
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220 | @@: |
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221 | mov [ebx+APPDATA.tls_base], edx |
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222 | |||
223 | if GREEDY_KERNEL |
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224 | else |
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225 | mov ecx, [hdr_mem] |
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226 | mov edi, [file_size] |
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227 | add edi, 4095 |
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228 | and edi, not 4095 |
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229 | sub ecx, edi |
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230 | jna @F |
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231 | |||
232 | xor eax, eax |
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233 | cld |
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234 | rep stosb |
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235 | @@: |
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236 | end if |
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237 | |||
238 | ; release only virtual space, not phisical memory |
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239 | |||
240 | stdcall free_kernel_space, [file_base] |
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241 | lea eax, [hdr_cmdline] |
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242 | lea ebx, [cmdline] |
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243 | lea ecx, [filename] |
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244 | stdcall set_app_params , [slot], eax, ebx, ecx, [flags] |
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245 | |||
246 | mov eax, [save_cr3] |
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247 | call set_cr3 |
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248 | |||
249 | xor ebx, ebx |
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250 | mov [application_table_status], ebx;unlock application_table_status mutex |
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251 | mov eax, [process_number];set result |
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2503 | mario79 | 252 | |
253 | jmp .final |
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254 | |||
2288 | clevermous | 255 | .failed: |
256 | mov eax, [save_cr3] |
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257 | call set_cr3 |
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258 | .err: |
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259 | .err_hdr: |
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260 | stdcall kernel_free, [file_base] |
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261 | .err_file: |
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262 | xor eax, eax |
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263 | mov [application_table_status], eax |
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264 | mov eax, esi |
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2503 | mario79 | 265 | .final: |
2586 | mario79 | 266 | cmp [SCR_MODE], word 0x13 |
267 | jbe @f |
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2503 | mario79 | 268 | pushad |
269 | stdcall set_cursor, [handle] |
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270 | mov [redrawmouse_unconditional], 1 |
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271 | call __sys_draw_pointer |
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272 | popad |
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2586 | mario79 | 273 | @@: |
2288 | clevermous | 274 | ret |
275 | endp |
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276 | |||
277 | align 4 |
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278 | test_app_header: |
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279 | virtual at eax |
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2384 | hidnplayr | 280 | APP_HEADER_00 APP_HEADER_00_ |
2288 | clevermous | 281 | end virtual |
282 | virtual at eax |
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2384 | hidnplayr | 283 | APP_HEADER_01 APP_HEADER_01_ |
2288 | clevermous | 284 | end virtual |
285 | |||
286 | cmp dword [eax], 'MENU' |
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287 | jne .fail |
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288 | cmp word [eax+4], 'ET' |
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289 | jne .fail |
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290 | |||
291 | cmp [eax+6], word '00' |
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292 | jne .check_01_header |
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293 | |||
294 | mov ecx, [APP_HEADER_00.start] |
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295 | mov [ebx+0x08], ecx ;app_eip |
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296 | mov edx, [APP_HEADER_00.mem_size] |
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297 | mov [ebx+0x10], edx ;app_mem |
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298 | shr edx, 1 |
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299 | sub edx, 0x10 |
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300 | mov [ebx+0x0C], edx ;app_esp |
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301 | mov ecx, [APP_HEADER_00.i_param] |
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302 | mov [ebx], ecx ;app_cmdline |
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303 | mov [ebx+4], dword 0 ;app_path |
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304 | mov edx, [APP_HEADER_00.i_end] |
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305 | mov [ebx+0x14], edx |
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306 | ret |
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307 | |||
308 | .check_01_header: |
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309 | |||
310 | cmp [eax+6], word '01' |
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311 | je @f |
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312 | cmp [eax+6], word '02' |
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313 | jne .fail |
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314 | @@: |
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315 | mov ecx, [APP_HEADER_01.start] |
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316 | mov [ebx+0x08], ecx ;app_eip |
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317 | mov edx, [APP_HEADER_01.mem_size] |
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318 | |||
319 | ; \begin{diamond}[20.08.2006] |
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320 | ; sanity check (functions 19,58 load app_i_end bytes and that must |
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321 | ; fit in allocated memory to prevent kernel faults) |
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322 | cmp edx, [APP_HEADER_01.i_end] |
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323 | jb .fail |
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324 | ; \end{diamond}[20.08.2006] |
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325 | |||
326 | mov [ebx+0x10], edx ;app_mem |
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327 | mov ecx, [APP_HEADER_01.stack_top] |
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328 | mov [ebx+0x0C], ecx ;app_esp |
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329 | mov edx, [APP_HEADER_01.i_param] |
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330 | mov [ebx], edx ;app_cmdline |
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331 | mov ecx, [APP_HEADER_01.i_icon] |
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332 | mov [ebx+4], ecx ;app_path |
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333 | mov edx, [APP_HEADER_01.i_end] |
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334 | mov [ebx+0x14], edx |
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335 | ret |
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336 | .fail: |
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337 | xor eax, eax |
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338 | ret |
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339 | |||
340 | align 4 |
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341 | proc get_new_process_place |
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342 | ;input: |
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343 | ; none |
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344 | ;result: |
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345 | ; eax=[new_process_place]<>0 - ok |
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346 | ; 0 - failed. |
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347 | ;This function find least empty slot. |
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348 | ;It doesn't increase [TASK_COUNT]! |
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349 | mov eax, CURRENT_TASK |
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350 | mov ebx, [TASK_COUNT] |
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351 | inc ebx |
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352 | shl ebx, 5 |
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353 | add ebx, eax ;ebx - address of process information for (last+1) slot |
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354 | .newprocessplace: |
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355 | ;eax = address of process information for current slot |
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356 | cmp eax, ebx |
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357 | jz .endnewprocessplace ;empty slot after high boundary |
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358 | add eax, 0x20 |
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359 | cmp word [eax+0xa], 9;check process state, 9 means that process slot is empty |
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360 | jnz .newprocessplace |
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361 | .endnewprocessplace: |
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362 | mov ebx, eax |
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363 | sub eax, CURRENT_TASK |
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364 | shr eax, 5 ;calculate slot index |
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365 | cmp eax, 256 |
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366 | jge .failed ;it should be <256 |
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367 | mov word [ebx+0xa], 9;set process state to 9 (for slot after hight boundary) |
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368 | ret |
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369 | .failed: |
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370 | xor eax, eax |
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371 | ret |
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372 | endp |
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373 | |||
374 | align 4 |
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375 | proc create_app_space stdcall, app_size:dword,img_base:dword,img_size:dword |
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376 | locals |
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377 | app_pages dd ? |
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378 | img_pages dd ? |
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379 | dir_addr dd ? |
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380 | app_tabs dd ? |
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381 | endl |
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382 | |||
383 | mov ecx, pg_data.mutex |
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384 | call mutex_lock |
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385 | |||
386 | xor eax, eax |
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387 | mov [dir_addr], eax |
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388 | |||
389 | mov eax, [app_size] |
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390 | add eax, 4095 |
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391 | and eax, NOT(4095) |
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392 | mov [app_size], eax |
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393 | mov ebx, eax |
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394 | shr eax, 12 |
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395 | mov [app_pages], eax |
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396 | |||
397 | add ebx, 0x3FFFFF |
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398 | and ebx, NOT(0x3FFFFF) |
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399 | shr ebx, 22 |
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400 | mov [app_tabs], ebx |
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401 | |||
402 | mov ecx, [img_size] |
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403 | add ecx, 4095 |
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404 | and ecx, NOT(4095) |
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405 | |||
406 | mov [img_size], ecx |
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407 | shr ecx, 12 |
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408 | mov [img_pages], ecx |
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409 | |||
410 | if GREEDY_KERNEL |
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411 | lea eax, [ecx+ebx+2];only image size |
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412 | else |
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413 | lea eax, [eax+ebx+2];all requested memory |
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414 | end if |
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415 | cmp eax, [pg_data.pages_free] |
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416 | ja .fail |
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417 | |||
418 | call alloc_page |
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419 | test eax, eax |
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420 | jz .fail |
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421 | mov [dir_addr], eax |
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422 | stdcall map_page, [tmp_task_pdir], eax, dword PG_SW |
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423 | |||
424 | mov edi, [tmp_task_pdir] |
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425 | mov ecx, (OS_BASE shr 20)/4 |
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426 | xor eax, eax |
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427 | cld |
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428 | rep stosd |
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429 | |||
430 | mov ecx, (OS_BASE shr 20)/4 |
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431 | mov esi, sys_pgdir+(OS_BASE shr 20) |
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432 | rep movsd |
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433 | |||
434 | mov eax, [dir_addr] |
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435 | or eax, PG_SW |
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436 | mov [edi-4096+(page_tabs shr 20)], eax |
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437 | |||
438 | and eax, -4096 |
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439 | call set_cr3 |
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440 | |||
441 | mov edx, [app_tabs] |
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442 | mov edi, new_app_base |
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443 | @@: |
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444 | call alloc_page |
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445 | test eax, eax |
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446 | jz .fail |
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447 | |||
448 | stdcall map_page_table, edi, eax |
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449 | add edi, 0x00400000 |
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450 | dec edx |
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451 | jnz @B |
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452 | |||
453 | mov edi, new_app_base |
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454 | shr edi, 10 |
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455 | add edi, page_tabs |
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456 | |||
457 | mov ecx, [app_tabs] |
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458 | shl ecx, 10 |
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459 | xor eax, eax |
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460 | rep stosd |
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461 | |||
462 | mov ecx, [img_pages] |
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463 | mov ebx, PG_UW |
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464 | mov edx, new_app_base |
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465 | mov esi, [img_base] |
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466 | mov edi, new_app_base |
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467 | shr esi, 10 |
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468 | shr edi, 10 |
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469 | add esi, page_tabs |
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470 | add edi, page_tabs |
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471 | .remap: |
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472 | lodsd |
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473 | or eax, ebx; force user level r/w access |
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474 | stosd |
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475 | add edx, 0x1000 |
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476 | dec [app_pages] |
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477 | dec ecx |
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478 | jnz .remap |
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479 | |||
480 | mov ecx, [app_pages] |
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481 | test ecx, ecx |
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482 | jz .done |
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483 | |||
484 | if GREEDY_KERNEL |
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485 | mov eax, 0x02 |
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486 | rep stosd |
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487 | else |
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488 | |||
489 | .alloc: |
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490 | call alloc_page |
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491 | test eax, eax |
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492 | jz .fail |
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493 | |||
494 | stdcall map_page, edx, eax, dword PG_UW |
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495 | add edx, 0x1000 |
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496 | dec [app_pages] |
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497 | jnz .alloc |
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498 | end if |
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499 | |||
500 | .done: |
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501 | stdcall map_page, [tmp_task_pdir], dword 0, dword PG_UNMAP |
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502 | |||
503 | mov ecx, pg_data.mutex |
||
504 | call mutex_unlock |
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505 | mov eax, [dir_addr] |
||
506 | ret |
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507 | .fail: |
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508 | mov ecx, pg_data.mutex |
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509 | call mutex_unlock |
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510 | cmp [dir_addr], 0 |
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511 | je @f |
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512 | stdcall destroy_app_space, [dir_addr], 0 |
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513 | @@: |
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514 | xor eax, eax |
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515 | ret |
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516 | endp |
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517 | |||
518 | align 4 |
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519 | set_cr3: |
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520 | |||
521 | mov ebx, [current_slot] |
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522 | mov [ebx+APPDATA.dir_table], eax |
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523 | mov cr3, eax |
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524 | ret |
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525 | |||
526 | align 4 |
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527 | proc destroy_page_table stdcall, pg_tab:dword |
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528 | |||
529 | push esi |
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530 | |||
531 | mov esi, [pg_tab] |
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532 | mov ecx, 1024 |
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533 | .free: |
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534 | mov eax, [esi] |
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535 | test eax, 1 |
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536 | jz .next |
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537 | test eax, 1 shl 9 |
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538 | jnz .next ;skip shared pages |
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539 | call free_page |
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540 | .next: |
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541 | add esi, 4 |
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542 | dec ecx |
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543 | jnz .free |
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544 | pop esi |
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545 | ret |
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546 | endp |
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547 | |||
548 | align 4 |
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549 | proc destroy_app_space stdcall, pg_dir:dword, dlls_list:dword |
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550 | |||
551 | xor edx, edx |
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552 | push edx |
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553 | mov eax, 0x2 |
||
554 | mov ebx, [pg_dir] |
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555 | .loop: |
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556 | ;eax = current slot of process |
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557 | mov ecx, eax |
||
558 | shl ecx, 5 |
||
559 | cmp byte [CURRENT_TASK+ecx+0xa], 9;if process running? |
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560 | jz @f ;skip empty slots |
||
561 | shl ecx, 3 |
||
562 | add ecx, SLOT_BASE |
||
563 | cmp [ecx+APPDATA.dir_table], ebx;compare page directory addresses |
||
564 | jnz @f |
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565 | mov [ebp-4], ecx |
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566 | inc edx ;thread found |
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567 | @@: |
||
568 | inc eax |
||
569 | cmp eax, [TASK_COUNT] ;exit loop if we look through all processes |
||
570 | jle .loop |
||
571 | |||
572 | ;edx = number of threads |
||
573 | ;our process is zombi so it isn't counted |
||
574 | pop ecx |
||
575 | cmp edx, 1 |
||
576 | jg .ret |
||
577 | ;if there isn't threads then clear memory. |
||
578 | mov esi, [dlls_list] |
||
579 | call destroy_all_hdlls;ecx=APPDATA |
||
580 | |||
581 | mov ecx, pg_data.mutex |
||
582 | call mutex_lock |
||
583 | |||
584 | mov eax, [pg_dir] |
||
585 | and eax, not 0xFFF |
||
586 | stdcall map_page, [tmp_task_pdir], eax, PG_SW |
||
587 | mov esi, [tmp_task_pdir] |
||
588 | mov edi, (OS_BASE shr 20)/4 |
||
589 | .destroy: |
||
590 | mov eax, [esi] |
||
591 | test eax, 1 |
||
592 | jz .next |
||
593 | and eax, not 0xFFF |
||
594 | stdcall map_page, [tmp_task_ptab], eax, PG_SW |
||
595 | stdcall destroy_page_table, [tmp_task_ptab] |
||
596 | mov eax, [esi] |
||
597 | call free_page |
||
598 | .next: |
||
599 | add esi, 4 |
||
600 | dec edi |
||
601 | jnz .destroy |
||
602 | |||
603 | mov eax, [pg_dir] |
||
604 | call free_page |
||
605 | .exit: |
||
606 | stdcall map_page, [tmp_task_ptab], 0, PG_UNMAP |
||
607 | stdcall map_page, [tmp_task_pdir], 0, PG_UNMAP |
||
608 | mov ecx, pg_data.mutex |
||
609 | call mutex_unlock |
||
610 | .ret: |
||
611 | ret |
||
612 | endp |
||
613 | |||
614 | align 4 |
||
615 | get_pid: |
||
616 | mov eax, [TASK_BASE] |
||
617 | mov eax, [eax+TASKDATA.pid] |
||
618 | ret |
||
619 | |||
620 | pid_to_slot: |
||
621 | ;Input: |
||
622 | ; eax - pid of process |
||
623 | ;Output: |
||
624 | ; eax - slot of process or 0 if process don't exists |
||
625 | ;Search process by PID. |
||
626 | push ebx |
||
627 | push ecx |
||
628 | mov ebx, [TASK_COUNT] |
||
629 | shl ebx, 5 |
||
630 | mov ecx, 2*32 |
||
631 | |||
632 | .loop: |
||
633 | ;ecx=offset of current process info entry |
||
634 | ;ebx=maximum permitted offset |
||
635 | cmp byte [CURRENT_TASK+ecx+0xa], 9 |
||
636 | jz .endloop ;skip empty slots |
||
637 | cmp [CURRENT_TASK+ecx+0x4], eax;check PID |
||
638 | jz .pid_found |
||
639 | .endloop: |
||
640 | add ecx, 32 |
||
641 | cmp ecx, ebx |
||
642 | jle .loop |
||
643 | |||
644 | pop ecx |
||
645 | pop ebx |
||
646 | xor eax, eax |
||
647 | ret |
||
648 | |||
649 | .pid_found: |
||
650 | shr ecx, 5 |
||
651 | mov eax, ecx ;convert offset to index of slot |
||
652 | pop ecx |
||
653 | pop ebx |
||
654 | ret |
||
655 | |||
656 | check_region: |
||
657 | ;input: |
||
658 | ; esi - start of buffer |
||
659 | ; edx - size of buffer |
||
660 | ;result: |
||
661 | ; eax = 1 region lays in app memory |
||
662 | ; eax = 0 region don't lays in app memory |
||
663 | mov eax, [CURRENT_TASK] |
||
664 | ; jmp check_process_region |
||
665 | ;----------------------------------------------------------------------------- |
||
666 | ;check_process_region: |
||
667 | ;input: |
||
668 | ; eax - slot |
||
669 | ; esi - start of buffer |
||
670 | ; edx - size of buffer |
||
671 | ;result: |
||
672 | ; eax = 1 region lays in app memory |
||
673 | ; eax = 0 region don't lays in app memory |
||
674 | |||
675 | test edx, edx |
||
676 | jle .ok |
||
677 | shl eax, 5 |
||
678 | cmp word [CURRENT_TASK+eax+0xa], 0 |
||
679 | jnz .failed |
||
680 | shl eax, 3 |
||
681 | mov eax, [SLOT_BASE+eax+0xb8] |
||
682 | test eax, eax |
||
683 | jz .failed |
||
684 | |||
685 | mov eax, 1 |
||
686 | ret |
||
687 | |||
688 | |||
689 | ; call MEM_Get_Linear_Address |
||
690 | ; push ebx |
||
691 | ; push ecx |
||
692 | ; push edx |
||
693 | ; mov edx,ebx |
||
694 | ; and edx,not (4096-1) |
||
695 | ; sub ebx,edx |
||
696 | ; add ecx,ebx |
||
697 | ; mov ebx,edx |
||
698 | ; add ecx,(4096-1) |
||
699 | ; and ecx,not (4096-1) |
||
700 | ;.loop: |
||
701 | ;;eax - linear address of page directory |
||
702 | ;;ebx - current page |
||
703 | ;;ecx - current size |
||
704 | ; mov edx,ebx |
||
705 | ; shr edx,22 |
||
706 | ; mov edx,[eax+4*edx] |
||
707 | ; and edx,not (4096-1) |
||
708 | ; test edx,edx |
||
709 | ; jz .failed1 |
||
710 | ; push eax |
||
711 | ; mov eax,edx |
||
712 | ; call MEM_Get_Linear_Address |
||
713 | ; mov edx,ebx |
||
714 | ; shr edx,12 |
||
715 | ; and edx,(1024-1) |
||
716 | ; mov eax,[eax+4*edx] |
||
717 | ; and eax,not (4096-1) |
||
718 | ; test eax,eax |
||
719 | ; pop eax |
||
720 | ; jz .failed1 |
||
721 | ; add ebx,4096 |
||
722 | ; sub ecx,4096 |
||
723 | ; jg .loop |
||
724 | ; pop edx |
||
725 | ; pop ecx |
||
726 | ; pop ebx |
||
727 | .ok: |
||
728 | mov eax, 1 |
||
729 | ret |
||
730 | ; |
||
731 | ;.failed1: |
||
732 | ; pop edx |
||
733 | ; pop ecx |
||
734 | ; pop ebx |
||
735 | .failed: |
||
736 | xor eax, eax |
||
737 | ret |
||
738 | |||
739 | align 4 |
||
740 | proc read_process_memory |
||
741 | ;Input: |
||
742 | ; eax - process slot |
||
743 | ; ecx - buffer address |
||
744 | ; edx - buffer size |
||
745 | ; esi - start address in other process |
||
746 | ;Output: |
||
747 | ; eax - number of bytes read. |
||
748 | locals |
||
749 | slot dd ? |
||
750 | buff dd ? |
||
751 | r_count dd ? |
||
752 | offset dd ? |
||
753 | tmp_r_cnt dd ? |
||
754 | endl |
||
755 | |||
756 | mov [slot], eax |
||
757 | mov [buff], ecx |
||
758 | and [r_count], 0 |
||
759 | mov [tmp_r_cnt], edx |
||
760 | mov [offset], esi |
||
761 | |||
762 | pushad |
||
763 | .read_mem: |
||
764 | mov edx, [offset] |
||
765 | mov ebx, [tmp_r_cnt] |
||
766 | |||
767 | mov ecx, 0x400000 |
||
768 | and edx, 0x3FFFFF |
||
769 | sub ecx, edx |
||
770 | cmp ecx, ebx |
||
771 | jbe @f |
||
772 | mov ecx, ebx |
||
773 | @@: |
||
774 | cmp ecx, 0x8000 |
||
775 | jna @F |
||
776 | mov ecx, 0x8000 |
||
777 | @@: |
||
778 | mov ebx, [offset] |
||
779 | |||
780 | push ecx |
||
781 | stdcall map_memEx, [proc_mem_map], \ |
||
782 | [slot], ebx, ecx, PG_MAP |
||
783 | pop ecx |
||
784 | |||
785 | mov esi, [offset] |
||
786 | and esi, 0xfff |
||
787 | sub eax, esi |
||
788 | jbe .ret |
||
789 | cmp ecx, eax |
||
790 | jbe @f |
||
791 | mov ecx, eax |
||
792 | mov [tmp_r_cnt], eax |
||
793 | @@: |
||
794 | add esi, [proc_mem_map] |
||
795 | mov edi, [buff] |
||
796 | mov edx, ecx |
||
797 | rep movsb |
||
798 | add [r_count], edx |
||
799 | |||
800 | add [offset], edx |
||
801 | sub [tmp_r_cnt], edx |
||
802 | jnz .read_mem |
||
803 | .ret: |
||
804 | popad |
||
805 | mov eax, [r_count] |
||
806 | ret |
||
807 | endp |
||
808 | |||
809 | align 4 |
||
810 | proc write_process_memory |
||
811 | ;Input: |
||
812 | ; eax - process slot |
||
813 | ; ecx - buffer address |
||
814 | ; edx - buffer size |
||
815 | ; esi - start address in other process |
||
816 | ;Output: |
||
817 | ; eax - number of bytes written |
||
818 | |||
819 | locals |
||
820 | slot dd ? |
||
821 | buff dd ? |
||
822 | w_count dd ? |
||
823 | offset dd ? |
||
824 | tmp_w_cnt dd ? |
||
825 | endl |
||
826 | |||
827 | mov [slot], eax |
||
828 | mov [buff], ecx |
||
829 | and [w_count], 0 |
||
830 | mov [tmp_w_cnt], edx |
||
831 | mov [offset], esi |
||
832 | |||
833 | pushad |
||
834 | .read_mem: |
||
835 | mov edx, [offset] |
||
836 | mov ebx, [tmp_w_cnt] |
||
837 | |||
838 | mov ecx, 0x400000 |
||
839 | and edx, 0x3FFFFF |
||
840 | sub ecx, edx |
||
841 | cmp ecx, ebx |
||
842 | jbe @f |
||
843 | mov ecx, ebx |
||
844 | @@: |
||
845 | cmp ecx, 0x8000 |
||
846 | jna @F |
||
847 | mov ecx, 0x8000 |
||
848 | @@: |
||
849 | mov ebx, [offset] |
||
850 | ; add ebx, new_app_base |
||
851 | push ecx |
||
852 | stdcall map_memEx, [proc_mem_map], \ |
||
853 | [slot], ebx, ecx, PG_SW |
||
854 | pop ecx |
||
855 | |||
856 | mov edi, [offset] |
||
857 | and edi, 0xfff |
||
858 | sub eax, edi |
||
859 | jbe .ret |
||
860 | cmp ecx, eax |
||
861 | jbe @f |
||
862 | mov ecx, eax |
||
863 | mov [tmp_w_cnt], eax |
||
864 | @@: |
||
865 | add edi, [proc_mem_map] |
||
866 | mov esi, [buff] |
||
867 | mov edx, ecx |
||
868 | rep movsb |
||
869 | |||
870 | add [w_count], edx |
||
871 | add [offset], edx |
||
872 | sub [tmp_w_cnt], edx |
||
873 | jnz .read_mem |
||
874 | .ret: |
||
875 | popad |
||
876 | mov eax, [w_count] |
||
877 | ret |
||
878 | endp |
||
879 | |||
880 | align 4 |
||
881 | proc new_sys_threads |
||
882 | locals |
||
883 | slot dd ? |
||
884 | app_cmdline dd ? ;0x00 |
||
885 | app_path dd ? ;0x04 |
||
886 | app_eip dd ? ;0x08 |
||
887 | app_esp dd ? ;0x0C |
||
888 | app_mem dd ? ;0x10 |
||
889 | endl |
||
890 | |||
891 | cmp ebx, 1 |
||
892 | jne .failed ;other subfunctions |
||
893 | |||
894 | xor eax, eax |
||
895 | mov [app_eip], ecx |
||
896 | mov [app_cmdline], eax |
||
897 | mov [app_esp], edx |
||
898 | mov [app_path], eax |
||
899 | ;mov esi,new_process_loading |
||
900 | ;call sys_msg_board_str |
||
901 | .wait_lock: |
||
902 | cmp [application_table_status], 0 |
||
903 | je .get_lock |
||
904 | call change_task |
||
905 | jmp .wait_lock |
||
906 | |||
907 | .get_lock: |
||
908 | mov eax, 1 |
||
909 | xchg eax, [application_table_status] |
||
910 | test eax, eax |
||
911 | jnz .wait_lock |
||
912 | |||
913 | call set_application_table_status |
||
914 | |||
915 | call get_new_process_place |
||
916 | test eax, eax |
||
917 | jz .failed |
||
918 | |||
919 | mov [slot], eax |
||
920 | |||
921 | mov esi, [current_slot] |
||
922 | mov ebx, esi ;ebx=esi - pointer to extended information about current thread |
||
923 | |||
924 | mov edi, eax |
||
925 | shl edi, 8 |
||
926 | add edi, SLOT_BASE |
||
927 | mov edx, edi ;edx=edi - pointer to extended infomation about new thread |
||
928 | mov ecx, 256/4 |
||
929 | xor eax, eax |
||
930 | cld |
||
931 | rep stosd ;clean extended information about new thread |
||
932 | mov esi, ebx |
||
933 | mov edi, edx |
||
934 | mov ecx, 11 |
||
935 | rep movsb ;copy process name |
||
936 | |||
937 | mov eax, [ebx+APPDATA.heap_base] |
||
938 | mov [edx+APPDATA.heap_base], eax |
||
939 | |||
940 | mov ecx, [ebx+APPDATA.heap_top] |
||
941 | mov [edx+APPDATA.heap_top], ecx |
||
942 | |||
943 | mov eax, [ebx+APPDATA.mem_size] |
||
944 | mov [edx+APPDATA.mem_size], eax |
||
945 | |||
946 | mov ecx, [ebx+APPDATA.dir_table] |
||
947 | mov [edx+APPDATA.dir_table], ecx;copy page directory |
||
948 | |||
949 | mov eax, [ebx+APPDATA.dlls_list_ptr] |
||
950 | mov [edx+APPDATA.dlls_list_ptr], eax |
||
951 | |||
952 | mov eax, [ebx+APPDATA.tls_base] |
||
953 | test eax, eax |
||
954 | jz @F |
||
955 | |||
956 | push edx |
||
957 | stdcall user_alloc, 4096 |
||
958 | pop edx |
||
959 | test eax, eax |
||
960 | jz .failed1;eax=0 |
||
961 | @@: |
||
962 | mov [edx+APPDATA.tls_base], eax |
||
963 | |||
964 | lea eax, [app_cmdline] |
||
965 | stdcall set_app_params , [slot], eax, dword 0, \ |
||
966 | dword 0,dword 0 |
||
967 | |||
968 | ;mov esi,new_process_running |
||
969 | ;call sys_msg_board_str ;output information about succefull startup |
||
970 | xor eax, eax |
||
971 | mov [application_table_status], eax ;unlock application_table_status mutex |
||
972 | mov eax, [process_number] ;set result |
||
973 | ret |
||
974 | .failed: |
||
975 | xor eax, eax |
||
976 | .failed1: |
||
977 | mov [application_table_status], eax |
||
978 | dec eax ;-1 |
||
979 | ret |
||
980 | endp |
||
981 | |||
982 | align 4 |
||
983 | tls_app_entry: |
||
984 | |||
985 | call init_heap |
||
986 | stdcall user_alloc, 4096 |
||
987 | |||
988 | mov edx, [current_slot] |
||
989 | mov [edx+APPDATA.tls_base], eax |
||
990 | mov [tls_data_l+2], ax |
||
991 | shr eax, 16 |
||
992 | mov [tls_data_l+4], al |
||
993 | mov [tls_data_l+7], ah |
||
994 | mov dx, app_tls |
||
995 | mov fs, dx |
||
996 | popad |
||
997 | iretd |
||
998 | |||
999 | |||
1000 | EFL_IF equ 0x0200 |
||
1001 | EFL_IOPL1 equ 0x1000 |
||
1002 | EFL_IOPL2 equ 0x2000 |
||
1003 | EFL_IOPL3 equ 0x3000 |
||
1004 | |||
1005 | |||
1006 | align 4 |
||
1007 | proc set_app_params stdcall,slot:dword, params:dword,\ |
||
1008 | cmd_line:dword, app_path:dword, flags:dword |
||
1009 | |||
1010 | locals |
||
1011 | pl0_stack dd ? |
||
1012 | endl |
||
1013 | |||
1014 | stdcall kernel_alloc, RING0_STACK_SIZE+512 |
||
1015 | mov [pl0_stack], eax |
||
1016 | |||
1017 | lea edi, [eax+RING0_STACK_SIZE] |
||
1018 | |||
1019 | mov eax, [slot] |
||
1020 | mov ebx, eax |
||
1021 | |||
1022 | shl eax, 8 |
||
1023 | mov [eax+SLOT_BASE+APPDATA.fpu_state], edi |
||
1024 | mov [eax+SLOT_BASE+APPDATA.exc_handler], 0 |
||
1025 | mov [eax+SLOT_BASE+APPDATA.except_mask], 0 |
||
1026 | |||
1027 | ;set default io permission map |
||
1028 | mov ecx, [SLOT_BASE+256+APPDATA.io_map] |
||
1029 | mov [eax+SLOT_BASE+APPDATA.io_map], ecx |
||
1030 | mov ecx, [SLOT_BASE+256+APPDATA.io_map+4] |
||
1031 | mov [eax+SLOT_BASE+APPDATA.io_map+4], ecx |
||
1032 | |||
1033 | mov esi, fpu_data |
||
1034 | mov ecx, 512/4 |
||
1035 | rep movsd |
||
1036 | |||
1037 | cmp ebx, [TASK_COUNT] |
||
1038 | jle .noinc |
||
1039 | inc dword [TASK_COUNT] ;update number of processes |
||
1040 | .noinc: |
||
1041 | shl ebx, 8 |
||
1042 | lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET] |
||
1043 | mov [SLOT_BASE+APPDATA.fd_ev+ebx], edx |
||
1044 | mov [SLOT_BASE+APPDATA.bk_ev+ebx], edx |
||
1045 | |||
1046 | add edx, APP_OBJ_OFFSET-APP_EV_OFFSET |
||
1047 | mov [SLOT_BASE+APPDATA.fd_obj+ebx], edx |
||
1048 | mov [SLOT_BASE+APPDATA.bk_obj+ebx], edx |
||
1049 | |||
1050 | mov ecx, [def_cursor] |
||
1051 | mov [SLOT_BASE+APPDATA.cursor+ebx], ecx |
||
1052 | mov eax, [pl0_stack] |
||
1053 | mov [SLOT_BASE+APPDATA.pl0_stack+ebx], eax |
||
1054 | add eax, RING0_STACK_SIZE |
||
1055 | mov [SLOT_BASE+APPDATA.saved_esp0+ebx], eax |
||
1056 | |||
1057 | push ebx |
||
1058 | stdcall kernel_alloc, 0x1000 |
||
1059 | pop ebx |
||
1060 | mov esi, [current_slot] |
||
1061 | mov esi, [esi+APPDATA.cur_dir] |
||
1062 | mov ecx, 0x1000/4 |
||
1063 | mov edi, eax |
||
1064 | mov [ebx+SLOT_BASE+APPDATA.cur_dir], eax |
||
1065 | rep movsd |
||
1066 | |||
1067 | shr ebx, 3 |
||
1068 | mov eax, new_app_base |
||
1069 | mov dword [CURRENT_TASK+ebx+0x10], eax |
||
1070 | |||
1071 | .add_command_line: |
||
1072 | mov edx, [params] |
||
1073 | mov edx, [edx] ;app_cmdline |
||
1074 | test edx, edx |
||
1075 | jz @f ;application doesn't need parameters |
||
1076 | |||
1077 | mov eax, edx |
||
1078 | add eax, 256 |
||
1079 | jc @f |
||
1080 | |||
1081 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
||
1082 | ja @f |
||
1083 | |||
1084 | mov byte [edx], 0 ;force empty string if no cmdline given |
||
1085 | mov eax, [cmd_line] |
||
1086 | test eax, eax |
||
1087 | jz @f |
||
1088 | stdcall strncpy, edx, eax, 256 |
||
1089 | @@: |
||
1090 | mov edx, [params] |
||
1091 | mov edx, [edx+4];app_path |
||
1092 | test edx, edx |
||
1093 | jz @F ;application don't need path of file |
||
1094 | mov eax, edx |
||
1095 | add eax, 1024 |
||
1096 | jc @f |
||
1097 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
||
1098 | ja @f |
||
1099 | stdcall strncpy, edx, [app_path], 1024 |
||
1100 | @@: |
||
1101 | mov ebx, [slot] |
||
1102 | mov eax, ebx |
||
1103 | shl ebx, 5 |
||
1104 | lea ecx, [draw_data+ebx];ecx - pointer to draw data |
||
1105 | |||
1106 | mov edx, irq0.return |
||
1107 | cmp [ebx*8+SLOT_BASE+APPDATA.tls_base], -1 |
||
1108 | jne @F |
||
1109 | mov edx, tls_app_entry |
||
1110 | @@: |
||
1111 | ; set window state to 'normal' (non-minimized/maximized/rolled-up) state |
||
1112 | mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL |
||
1113 | mov [ebx+window_data+WDATA.fl_redraw], 1 |
||
1114 | add ebx, CURRENT_TASK ;ebx - pointer to information about process |
||
1115 | mov [ebx+TASKDATA.wnd_number], al;set window number on screen = process slot |
||
1116 | |||
1117 | mov [ebx+TASKDATA.event_mask], dword 1+2+4;set default event flags (see 40 function) |
||
1118 | |||
1119 | inc dword [process_number] |
||
1120 | mov eax, [process_number] |
||
1121 | mov [ebx+4], eax ;set PID |
||
1122 | |||
1123 | ;set draw data to full screen |
||
1124 | xor eax, eax |
||
1125 | mov [ecx+0], dword eax |
||
1126 | mov [ecx+4], dword eax |
||
1127 | mov eax, [Screen_Max_X] |
||
1128 | mov [ecx+8], eax |
||
1129 | mov eax, [Screen_Max_Y] |
||
1130 | mov [ecx+12], eax |
||
1131 | |||
1132 | mov ebx, [pl0_stack] |
||
1133 | mov esi, [params] |
||
1134 | lea ecx, [ebx+REG_EIP] |
||
1135 | xor eax, eax |
||
1136 | |||
1137 | mov [ebx+REG_RET], edx |
||
1138 | mov [ebx+REG_EDI], eax |
||
1139 | mov [ebx+REG_ESI], eax |
||
1140 | mov [ebx+REG_EBP], eax |
||
1141 | mov [ebx+REG_ESP], ecx;ebx+REG_EIP |
||
1142 | mov [ebx+REG_EBX], eax |
||
1143 | mov [ebx+REG_EDX], eax |
||
1144 | mov [ebx+REG_ECX], eax |
||
1145 | mov [ebx+REG_EAX], eax |
||
1146 | |||
1147 | mov eax, [esi+0x08] ;app_eip |
||
1148 | mov [ebx+REG_EIP], eax;app_entry |
||
1149 | mov [ebx+REG_CS], dword app_code |
||
1150 | mov [ebx+REG_EFLAGS], dword EFL_IOPL1+EFL_IF |
||
1151 | |||
1152 | mov eax, [esi+0x0C] ;app_esp |
||
1153 | mov [ebx+REG_APP_ESP], eax;app_stack |
||
1154 | mov [ebx+REG_SS], dword app_data |
||
1155 | |||
1156 | lea ecx, [ebx+REG_RET] |
||
1157 | mov ebx, [slot] |
||
1158 | shl ebx, 5 |
||
1159 | mov [ebx*8+SLOT_BASE+APPDATA.saved_esp], ecx |
||
1160 | |||
1161 | xor ecx, ecx; process state - running |
||
1162 | ; set if debuggee |
||
1163 | test byte [flags], 1 |
||
1164 | jz .no_debug |
||
1165 | inc ecx ; process state - suspended |
||
1166 | mov eax, [CURRENT_TASK] |
||
1167 | mov [SLOT_BASE+ebx*8+APPDATA.debugger_slot], eax |
||
1168 | .no_debug: |
||
1169 | mov [CURRENT_TASK+ebx+TASKDATA.state], cl |
||
1170 | ;mov esi,new_process_running |
||
1171 | ;call sys_msg_board_str ;output information about succefull startup |
||
1172 | ret |
||
1173 | endp |
||
1174 | |||
1175 | |||
1176 | align 4 |
||
1177 | |||
1178 | get_stack_base: |
||
1179 | mov eax, [current_slot] |
||
1180 | mov eax, [eax+APPDATA.pl0_stack] |
||
1181 | ret |
||
1182 | |||
1183 | |||
1184 | include "debug.inc"256 |