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