Rev 164 | Rev 172 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
170 | serge | 1 | GREEDY_KERNEL equ 0; 1 |
164 | serge | 2 | |
170 | serge | 3 | |
164 | serge | 4 | struc APP_HEADER_00 |
5 | { .banner dq ? |
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6 | .version dd ? ;+8 |
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7 | .start dd ? ;+12 |
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8 | .i_end dd ? ;+16 |
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9 | .mem_size dd ? ;+20 |
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10 | .i_param dd ? ;+24 |
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11 | } |
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12 | |||
13 | struc APP_HEADER_01 |
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14 | { .banner dq ? |
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15 | .version dd ? ;+8 |
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16 | .start dd ? ;+12 |
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17 | .i_end dd ? ;+16 |
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18 | .mem_size dd ? ;+20 |
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19 | .stack_top dd ? ;+24 |
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20 | .i_param dd ? ;+28 |
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21 | .i_icon dd ? ;+32 |
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22 | } |
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23 | |||
24 | align 4 |
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25 | proc test_app_header stdcall, header:dword |
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26 | virtual at ebx |
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27 | APP_HEADER_00 APP_HEADER_00 |
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28 | end virtual |
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29 | |||
30 | mov ebx, [header] |
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31 | cmp [ebx+6], word '00' |
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32 | jne .check_01_header |
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33 | |||
34 | mov eax,[APP_HEADER_00.start] |
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35 | mov [app_start],eax |
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36 | mov eax,[APP_HEADER_00.i_end] |
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37 | mov [app_i_end],eax |
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38 | mov eax,[APP_HEADER_00.mem_size] |
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39 | mov [app_mem],eax |
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40 | shr eax,1 |
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41 | sub eax,0x10 |
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42 | mov [app_esp],eax |
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43 | mov eax,[APP_HEADER_00.i_param] |
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44 | mov [app_i_param],eax |
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45 | mov [app_i_icon],dword 0 |
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46 | |||
47 | mov eax,1 |
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48 | ret |
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49 | |||
50 | .check_01_header: |
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51 | virtual at ebx |
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52 | APP_HEADER_01 APP_HEADER_01 |
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53 | end virtual |
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54 | |||
55 | cmp [ebx+6],word '01' |
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56 | jne .no_01_header |
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57 | |||
58 | mov eax,[APP_HEADER_01.start] |
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59 | mov [app_start],eax |
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60 | mov eax,[APP_HEADER_01.i_end] |
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61 | mov [app_i_end],eax |
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62 | mov eax,[APP_HEADER_01.mem_size] |
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63 | mov [app_mem],eax |
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64 | mov eax,[APP_HEADER_01.stack_top] |
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65 | mov [app_esp],eax |
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66 | mov eax,[APP_HEADER_01.i_param] |
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67 | mov [app_i_param],eax |
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68 | mov eax,[APP_HEADER_01.i_icon] |
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69 | mov [app_i_icon],eax |
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70 | |||
71 | mov eax,1 |
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72 | ret |
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73 | |||
74 | .no_01_header: |
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75 | |||
76 | xor eax, eax |
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77 | ret |
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78 | endp |
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79 | |||
80 | align 4 |
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81 | proc get_new_process_place |
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82 | ;input: |
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83 | ; none |
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84 | ;result: |
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85 | ; eax=[new_process_place]<>0 - ok |
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86 | ; 0 - failed. |
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87 | ;This function find least empty slot. |
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88 | ;It doesn't increase [TASK_COUNT]! |
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89 | mov eax,CURRENT_TASK |
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90 | mov ebx,[TASK_COUNT] |
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91 | inc ebx |
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92 | shl ebx,5 |
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93 | add ebx,eax ;ebx - address of process information for (last+1) slot |
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94 | .newprocessplace: |
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95 | ;eax = address of process information for current slot |
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96 | cmp eax,ebx |
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97 | jz .endnewprocessplace ;empty slot after high boundary |
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98 | add eax,0x20 |
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99 | cmp word [eax+0xa],9 ;check process state, 9 means that process slot is empty |
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100 | jnz .newprocessplace |
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101 | .endnewprocessplace: |
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102 | mov ebx,eax |
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103 | sub eax,CURRENT_TASK |
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104 | shr eax,5 ;calculate slot index |
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105 | cmp eax,256 |
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106 | jge .failed ;it should be <256 |
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107 | mov word [ebx+0xa],9 ;set process state to 9 (for slot after hight boundary) |
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108 | ; mov [new_process_place], eax |
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109 | ret |
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110 | |||
111 | .failed: |
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112 | xor eax,eax |
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113 | ret |
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114 | endp |
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115 | |||
116 | align 4 |
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117 | proc create_app_space stdcall, app_size:dword,img_size:dword |
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118 | locals |
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119 | app_pages dd ? |
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120 | img_pages dd ? |
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121 | dir_addr dd ? |
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122 | master_addr dd ? |
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123 | app_tabs dd ? |
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124 | endl |
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125 | |||
126 | stdcall wait_mutex, pg_data.pg_mutex |
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127 | |||
128 | xor eax, eax |
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129 | mov [dir_addr], eax |
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130 | mov [master_addr], eax |
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131 | |||
132 | mov eax, [app_size] |
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133 | add eax, 4095+4096 |
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134 | and eax, NOT(4095) |
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135 | mov [app_size], eax |
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136 | mov ebx, eax |
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137 | shr eax, 12 |
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138 | mov [app_pages], eax |
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170 | serge | 139 | |
164 | serge | 140 | add ebx, 0x3FFFFF |
141 | and ebx, NOT(0x3FFFFF) |
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142 | shr ebx, 22 |
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143 | mov [app_tabs], ebx |
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144 | |||
170 | serge | 145 | mov ecx, [img_size] |
146 | add ecx, 4095 |
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147 | and ecx, NOT(4095) |
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164 | serge | 148 | |
170 | serge | 149 | mov [img_size], ecx |
150 | shr ecx, 12 |
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151 | mov [img_pages], ecx |
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164 | serge | 152 | |
170 | serge | 153 | if GREEDY_KERNEL |
154 | lea eax, [ecx+ebx+2] ;only image size |
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155 | else |
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156 | lea eax, [eax+ebx+2] ;all requested memory |
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157 | end if |
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158 | cmp eax, [pg_data.pages_free] |
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159 | ja .fail |
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160 | |||
164 | serge | 161 | call alloc_page |
162 | test eax, eax |
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163 | jz .fail |
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164 | mov [dir_addr], eax |
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165 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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166 | |||
167 | mov esi, sys_pgdir |
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168 | mov edi, [tmp_task_pdir] |
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169 | mov ecx, 384 |
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170 | cld |
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171 | rep movsd |
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172 | |||
173 | mov ecx, 384 |
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174 | xor eax, eax |
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175 | cld |
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176 | rep stosd |
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177 | |||
178 | mov ecx, 256 |
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179 | mov esi, sys_pgdir+0xc00 |
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180 | rep movsd |
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181 | |||
182 | call alloc_page |
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183 | test eax, eax |
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184 | jz .fail |
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185 | mov [master_addr], eax |
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186 | stdcall map_page,[tmp_task_ptab],eax,dword PG_SW |
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187 | |||
188 | mov ecx, 384 |
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189 | mov edi, [tmp_task_ptab] |
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190 | mov esi, master_tab |
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191 | cld |
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192 | rep movsd |
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193 | |||
194 | mov ecx, 384 |
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195 | xor eax, eax |
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196 | rep stosd |
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197 | |||
198 | mov ecx, 256 |
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199 | mov esi, master_tab+0xc00 |
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200 | rep movsd |
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201 | |||
202 | mov eax, [master_addr] |
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203 | or eax, PG_SW |
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204 | mov ebx, [tmp_task_pdir] |
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205 | mov [ebx+0x600], eax |
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206 | mov ecx, [tmp_task_ptab] |
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207 | mov [ecx+0x600],eax |
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208 | |||
209 | mov eax, [dir_addr] |
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210 | call set_cr3 |
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211 | |||
212 | mov edx, [app_tabs] |
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213 | mov edi, new_app_base |
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214 | @@: |
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215 | call alloc_page |
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216 | test eax, eax |
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217 | jz .fail |
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218 | |||
219 | stdcall map_page_table,[tmp_task_pdir], edi, eax |
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220 | add edi, 0x00400000 |
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221 | dec edx |
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222 | jnz @B |
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223 | |||
224 | mov edi, new_app_base |
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225 | shr edi, 10 |
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226 | add edi, pages_tab |
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227 | mov ecx, [app_tabs] |
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228 | shl ecx, 10 |
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229 | xor eax, eax |
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230 | rep stosd |
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231 | |||
232 | mov edx, new_app_base |
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233 | |||
234 | .alloc: |
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235 | call alloc_page |
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236 | test eax, eax |
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237 | jz .fail |
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238 | |||
239 | stdcall map_page,edx,eax,dword PG_UW |
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240 | add edx, 0x1000 |
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241 | sub [app_pages], 1 |
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242 | sub [img_pages], 1 |
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243 | jnz .alloc |
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244 | |||
245 | mov ecx, [app_pages] |
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246 | and ecx, ecx |
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247 | jz .next |
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248 | |||
249 | mov ebx, edx |
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250 | shr edx, 12 |
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251 | .reserve: |
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252 | mov dword [pages_tab+edx*4], 0x02 |
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253 | invlpg [ebx] |
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254 | inc edx |
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255 | dec ecx |
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256 | jnz .reserve |
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257 | .next: |
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258 | mov edi, new_app_base |
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259 | mov ecx, [img_size] |
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260 | shr ecx, 2 |
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261 | xor eax, eax |
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262 | cld |
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263 | rep stosd |
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264 | |||
265 | stdcall map_page,[tmp_task_ptab],dword 0,dword PG_UNMAP |
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266 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
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267 | |||
268 | dec [pg_data.pg_mutex] |
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269 | mov eax, [dir_addr] |
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270 | ret |
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271 | .fail: |
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272 | dec [pg_data.pg_mutex] |
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273 | cmp [dir_addr], 0 |
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274 | jz @f |
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275 | stdcall destroy_app_space, [dir_addr] |
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276 | @@: |
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277 | xor eax, eax |
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278 | ret |
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279 | endp |
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280 | |||
281 | align 4 |
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282 | set_cr3: |
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283 | mov esi, [CURRENT_TASK] |
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284 | mov ebx, esi |
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285 | shl esi,8 |
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286 | mov [PROC_BASE+esi+0xB8],eax |
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287 | imul ebx,tss_step |
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288 | add ebx,tss_data |
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289 | mov [ebx+28], eax |
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290 | mov cr3, eax |
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291 | ret |
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292 | |||
293 | align 4 |
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294 | proc destroy_page_table stdcall, pg_tab:dword |
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295 | |||
296 | push esi |
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297 | |||
298 | mov esi, [pg_tab] |
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299 | mov ecx, 1024 |
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300 | .free: |
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301 | mov eax, [esi] |
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302 | test eax, 1 |
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303 | jz .next |
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304 | call free_page |
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305 | .next: |
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306 | add esi, 4 |
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307 | dec ecx |
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308 | jnz .free |
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309 | pop esi |
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310 | ret |
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311 | endp |
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312 | |||
313 | align 4 |
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314 | proc destroy_app_space stdcall, pg_dir:dword |
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315 | |||
316 | stdcall wait_mutex, pg_data.pg_mutex |
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317 | |||
318 | xor edx,edx |
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319 | mov eax,0x2 |
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320 | mov ebx, [pg_dir] |
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321 | |||
322 | .loop: |
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323 | ;eax = current slot of process |
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324 | mov ecx,eax |
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325 | shl ecx,5 |
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326 | cmp byte [CURRENT_TASK+ecx+0xa],9 ;if process running? |
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327 | jz @f ;skip empty slots |
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328 | shl ecx,3 |
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329 | cmp [PROC_BASE+ecx+0xB8],ebx ;compare page directory addresses |
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330 | jnz @f |
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331 | inc edx ;thread found |
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332 | @@: |
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333 | inc eax |
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334 | cmp eax,[TASK_COUNT] ;exit loop if we look through all processes |
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335 | jle .loop |
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336 | |||
337 | ;edx = number of threads |
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338 | ;our process is zombi so it isn't counted |
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339 | cmp edx,1 |
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340 | jg .exit |
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341 | ;if there isn't threads then clear memory. |
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342 | |||
343 | mov eax, [pg_dir] |
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344 | and eax, not 0xFFF |
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345 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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346 | mov esi, [tmp_task_pdir] |
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347 | add esi, 0x600 |
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348 | mov eax, [esi] |
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349 | call free_page ;destroy master table |
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350 | add esi, 4 |
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351 | mov edi, 383 |
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352 | .destroy: |
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353 | mov eax, [esi] |
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354 | test eax, 1 |
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355 | jz .next |
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356 | and eax, not 0xFFF |
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357 | stdcall map_page,[tmp_task_ptab],eax,dword PG_SW |
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358 | stdcall destroy_page_table, [tmp_task_ptab] |
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359 | mov eax, [esi] |
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360 | call free_page |
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361 | .next: |
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362 | add esi, 4 |
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363 | dec edi |
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364 | jnz .destroy |
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365 | |||
366 | mov eax, [pg_dir] |
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367 | call free_page |
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368 | .exit: |
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369 | stdcall map_page,[tmp_task_ptab],dword 0,dword PG_UNMAP |
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370 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
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371 | dec [pg_data.pg_mutex] |
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372 | ret |
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373 | endp |
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374 | |||
375 | align 4 |
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376 | proc fs_execute |
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377 | |||
378 | ;fn_read:dword, file_size:dword, cluster:dword |
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379 | |||
380 | ; ebx - cmdline |
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381 | ; edx - flags |
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382 | ; ebp - full filename |
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383 | ; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it |
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384 | |||
385 | locals |
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386 | cmdline dd ? |
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387 | flags dd ? |
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388 | filename dd ? |
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389 | retval dd ? |
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390 | endl |
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391 | |||
392 | pushad |
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393 | |||
394 | mov [cmdline], ebx |
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395 | mov [flags], edx |
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396 | mov eax, [ebp] |
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397 | mov [filename], eax |
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398 | |||
399 | stdcall wait_mutex, pg_data.tmp_task_mutex |
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400 | |||
401 | mov edi, [tmp_task_data] |
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402 | mov ecx, (2048+256)/4 |
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403 | xor eax, eax |
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404 | rep stosd |
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405 | |||
406 | mov esi, [filename] |
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407 | mov edi, [tmp_task_data] |
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408 | add edi, TMP_FILE_NAME |
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409 | mov ecx, 1024 |
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410 | rep movsb |
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411 | |||
412 | mov esi, [filename] |
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413 | mov edi, [tmp_task_data] |
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414 | add edi, TMP_ICON_OFFS |
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415 | mov ecx, 1024 |
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416 | rep movsb |
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417 | |||
418 | mov esi, [cmdline] |
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419 | test esi, esi |
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420 | jz @f |
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421 | mov edi, [tmp_task_data] |
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422 | add edi, TMP_CMD_LINE |
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423 | mov ecx, 256 |
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424 | rep movsb |
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425 | @@: |
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426 | mov eax, TMP_FILE_NAME |
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427 | add eax, [tmp_task_data] |
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428 | mov ebx, [tmp_task_data] ;cmd line |
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429 | add ebx, TMP_CMD_LINE |
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430 | |||
431 | stdcall fs_exec, eax, ebx, [flags], [ebp+8],\ |
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432 | [ebp+12], [ebp+16],[ebp+20] |
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433 | mov [retval], eax |
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434 | popad |
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435 | mov [pg_data.tmp_task_mutex], 0 |
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436 | mov eax, [retval] |
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437 | ret |
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438 | |||
439 | endp |
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440 | |||
441 | align 4 |
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442 | proc fs_exec stdcall file_name:dword, cmd_line:dword, flags:dword,\ |
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443 | fn_read:dword, file_size:dword,\ |
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444 | cluster:dword, some_data:dword |
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445 | |||
446 | locals |
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447 | slot dd ? |
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448 | app_path_size dd ? |
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449 | save_cr3 dd ? |
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450 | img_size dd ? |
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451 | endl |
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452 | |||
453 | ; check filename length - with terminating NULL must be no more than 1024 symbols |
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454 | |||
455 | mov edi, [file_name] |
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456 | mov ecx, 1024 |
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457 | xor eax, eax |
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458 | repnz scasb |
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459 | jz @f |
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460 | mov eax, -ERROR_FILE_NOT_FOUND |
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461 | ret |
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462 | @@: |
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463 | sub edi, [file_name] |
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464 | mov [app_path_size], edi |
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465 | |||
466 | mov esi, new_process_loading |
||
467 | call sys_msg_board_str ; write message to message board |
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468 | |||
469 | pushfd |
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470 | cli |
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471 | |||
472 | .wait_lock: |
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473 | cmp [application_table_status],0 |
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474 | je .get_lock |
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475 | call change_task |
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476 | jmp .wait_lock |
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477 | |||
478 | .get_lock: |
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479 | mov eax, 1 |
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480 | xchg eax, [application_table_status] |
||
481 | cmp eax, 0 |
||
482 | jne .wait_lock |
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483 | |||
484 | call set_application_table_status |
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485 | |||
486 | call get_new_process_place |
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487 | test eax, eax |
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488 | mov ecx, -0x20 ; too many processes |
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489 | jz .err |
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490 | mov [slot], eax |
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491 | |||
492 | mov edi,eax |
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493 | shl edi,8 |
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494 | add edi,PROC_BASE |
||
495 | mov ecx,256/4 |
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496 | xor eax,eax |
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497 | cld |
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498 | rep stosd ;clean extended information about process |
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499 | |||
500 | ; write application name |
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501 | |||
502 | mov edi, [file_name] |
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503 | mov ecx, [app_path_size] |
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504 | add edi, ecx |
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505 | dec edi |
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506 | std |
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507 | mov al, '/' |
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508 | repnz scasb |
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509 | cld |
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510 | jnz @f |
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511 | inc edi |
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512 | @@: |
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513 | inc edi |
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514 | ; now edi points to name without path |
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515 | |||
516 | mov esi, edi |
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517 | mov ecx, 8 ; 8 chars for name |
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518 | mov edi, [slot] |
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519 | shl edi, cl |
||
520 | add edi, PROC_BASE |
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521 | .copy_process_name_loop: |
||
522 | lodsb |
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523 | cmp al, '.' |
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524 | jz .copy_process_name_done |
||
525 | test al, al |
||
526 | jz .copy_process_name_done |
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527 | stosb |
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528 | loop .copy_process_name_loop |
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529 | .copy_process_name_done: |
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530 | mov al, ' ' |
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531 | rep stosb |
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532 | pop eax |
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533 | mov cl, 3 ; 3 chars for extension |
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534 | dec esi |
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535 | @@: |
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536 | dec eax |
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537 | cmp eax, esi |
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538 | jbe .copy_process_ext_done |
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539 | cmp byte [eax], '.' |
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540 | jnz @b |
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541 | lea esi, [eax+1] |
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542 | .copy_process_ext_loop: |
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543 | lodsb |
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544 | test al, al |
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545 | jz .copy_process_ext_done |
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546 | stosb |
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547 | loop .copy_process_ext_loop |
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548 | .copy_process_ext_done: |
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549 | mov al, ' ' |
||
550 | rep stosb |
||
551 | |||
552 | ; read header |
||
553 | lea eax, [file_size] |
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170 | serge | 554 | mov ebx, [eax] |
555 | mov [img_size], ebx |
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164 | serge | 556 | mov edi, TMP_BUFF |
557 | call [fn_read] |
||
170 | serge | 558 | |
164 | serge | 559 | test eax, eax |
560 | jnz .err |
||
561 | |||
562 | ; check menuet signature |
||
563 | |||
564 | mov ecx, -0x1F |
||
565 | ;check MENUET signature |
||
566 | cmp [TMP_BUFF],dword 'MENU' |
||
567 | jnz .err |
||
568 | cmp [TMP_BUFF+4],word 'ET' |
||
569 | jnz .err |
||
570 | |||
571 | stdcall test_app_header, TMP_BUFF |
||
572 | test eax, eax |
||
573 | jz .err |
||
574 | |||
575 | mov eax, cr3 |
||
576 | mov [save_cr3], eax |
||
170 | serge | 577 | if GREEDY_KERNEL |
578 | stdcall create_app_space,[app_mem],[img_size] |
||
579 | else |
||
580 | stdcall create_app_space,[app_mem],[app_mem] |
||
581 | end if |
||
164 | serge | 582 | test eax, eax |
583 | jz .failed |
||
584 | |||
585 | mov ebx,[slot] |
||
586 | shl ebx,8 |
||
587 | mov [PROC_BASE+ebx+0xB8],eax |
||
588 | |||
589 | mov esi, TMP_BUFF |
||
590 | mov edi, new_app_base |
||
591 | mov ecx, 512/4 |
||
592 | cld |
||
593 | rep movsd |
||
594 | |||
595 | ;read file |
||
596 | @@: |
||
597 | lea eax, [file_size] |
||
598 | cmp dword [eax], 0 |
||
599 | jz .done |
||
600 | push edi |
||
601 | call [fn_read] |
||
602 | pop edi |
||
603 | add edi, 512 |
||
604 | test eax, eax |
||
605 | jz @b |
||
606 | cmp ebx, 6 |
||
607 | jne .failed |
||
608 | .done: |
||
609 | stdcall add_app_parameters, [slot], new_app_base,\ |
||
610 | [cmd_line],[file_name],[flags] |
||
611 | |||
612 | mov eax, [save_cr3] |
||
613 | call set_cr3 |
||
614 | |||
615 | xor eax, eax |
||
616 | mov [application_table_status],eax ;unlock application_table_status mutex |
||
617 | popfd |
||
618 | mov eax,[process_number] ;set result |
||
619 | ret |
||
620 | |||
621 | .failed: |
||
622 | mov eax, [save_cr3] |
||
623 | call set_cr3 |
||
624 | .err: |
||
625 | |||
626 | popfd |
||
627 | xor eax, eax |
||
628 | mov [application_table_status],eax |
||
629 | ret |
||
630 | endp |
||
631 | |||
632 | align 4 |
||
633 | proc add_app_parameters stdcall,slot:dword,img_base:dword,\ |
||
634 | cmd_line:dword, app_path:dword, flags:dword |
||
635 | |||
636 | mov eax,[slot] |
||
637 | bt [cpu_caps], CAPS_SSE |
||
638 | jnc .no_SSE |
||
639 | shl eax, 8 |
||
640 | mov ebx, eax |
||
641 | add eax, eax |
||
642 | add eax, [fpu_data] |
||
643 | mov [ebx+PROC_BASE+APPDATA.fpu_state], eax |
||
644 | mov [ebx+PROC_BASE+APPDATA.fpu_handler], 0 |
||
645 | mov [ebx+PROC_BASE+APPDATA.sse_handler], 0 |
||
646 | jmp .m1 |
||
647 | .no_SSE: |
||
648 | mov ecx, eax |
||
649 | mov ebx, eax |
||
650 | shl eax, 7 |
||
651 | shl ebx, 4 |
||
652 | sub eax, ebx ;eax*=112 |
||
653 | add eax, [fpu_data] |
||
654 | shl ecx, 8 |
||
655 | mov [ecx+PROC_BASE+APPDATA.fpu_state], eax |
||
656 | mov [ecx+PROC_BASE+APPDATA.fpu_handler], 0 |
||
657 | mov [ecx+PROC_BASE+APPDATA.sse_handler], 0 |
||
658 | .m1: |
||
659 | mov ebx,[slot] |
||
660 | cmp ebx,[TASK_COUNT] |
||
661 | jle .noinc |
||
662 | inc dword [TASK_COUNT] ;update number of processes |
||
663 | .noinc: |
||
664 | shl ebx,8 |
||
665 | mov eax,[app_mem] |
||
666 | mov [PROC_BASE+0x8c+ebx],eax |
||
667 | |||
668 | shr ebx,3 |
||
669 | mov eax, new_app_base |
||
670 | mov dword [CURRENT_TASK+ebx+0x10],eax |
||
671 | |||
672 | .add_command_line: |
||
673 | mov edx,[app_i_param] |
||
674 | test edx,edx |
||
675 | jz .no_command_line ;application don't need parameters |
||
676 | mov eax,[cmd_line] |
||
677 | test eax,eax |
||
678 | jz .no_command_line ;no parameters specified |
||
679 | ;calculate parameter length |
||
680 | xor ecx,ecx |
||
681 | .command_line_len: |
||
682 | cmp byte [eax],0 |
||
683 | jz .command_line_len_end |
||
684 | inc eax |
||
685 | inc ecx |
||
686 | cmp ecx,255 |
||
687 | jl .command_line_len |
||
688 | |||
689 | .command_line_len_end: |
||
690 | ;ecx - parameter length |
||
691 | ;edx - address of parameters in new process address space |
||
692 | inc ecx |
||
693 | mov edi, [img_base] |
||
694 | add edi, edx |
||
695 | mov esi, [cmd_line] |
||
696 | rep movsb |
||
697 | |||
698 | .no_command_line: |
||
699 | |||
700 | mov edx,[app_i_icon] |
||
701 | test edx,edx |
||
702 | jz .no_command_line_1 ;application don't need path of file |
||
703 | mov esi,[app_path] |
||
704 | test esi, esi |
||
705 | jz .no_command_line_1 ;application don't need path of file |
||
706 | mov ecx, 64 |
||
707 | mov edi, [img_base] |
||
708 | add edi, edx |
||
709 | rep movsb |
||
710 | |||
711 | .no_command_line_1: |
||
712 | mov ebx,[slot] |
||
713 | mov eax,ebx |
||
714 | shl ebx,5 |
||
715 | add ebx,CURRENT_TASK ;ebx - pointer to information about process |
||
716 | mov [ebx+0xe],al ;set window number on screen = process slot |
||
717 | |||
718 | mov [ebx],dword 1+2+4 ;set default event flags (see 40 function) |
||
719 | |||
720 | inc dword [process_number] |
||
721 | mov eax,[process_number] |
||
722 | mov [ebx+4],eax ;set PID |
||
723 | |||
724 | mov ecx,ebx |
||
725 | add ecx,(draw_data-CURRENT_TASK) ;ecx - pointer to draw data |
||
726 | ;set draw data to full screen |
||
727 | |||
728 | mov [ecx+0],dword 0 |
||
729 | mov [ecx+4],dword 0 |
||
730 | mov eax,[SCR_X_SIZE] |
||
731 | mov [ecx+8],eax |
||
732 | mov eax,[SCR_Y_SIZE] |
||
733 | mov [ecx+12],eax |
||
734 | ;set window state to 'normal' (non-minimized/maximized/rolled-up) state |
||
735 | mov [ecx+WDATA.fl_wstate],WSTATE_NORMAL |
||
736 | ;set cr3 register in TSS of application |
||
737 | |||
738 | mov ecx,[slot] |
||
739 | shl ecx,8 |
||
740 | mov eax,[PROC_BASE+0xB8+ecx] |
||
741 | ;or eax, PG_NOCACHE |
||
742 | mov [l.cr3],eax |
||
743 | |||
744 | mov eax,[app_start] |
||
745 | mov [l.eip],eax ;set eip in TSS |
||
746 | mov eax,[app_esp] |
||
747 | mov [l.esp],eax ;set stack in TSS |
||
748 | |||
749 | ;gdt |
||
750 | mov ax,app_code ;ax - selector of code segment |
||
751 | mov [l.cs],ax |
||
752 | mov ax,app_data |
||
753 | mov [l.ss],ax |
||
754 | mov [l.ds],ax |
||
755 | mov [l.es],ax |
||
756 | mov [l.fs],ax |
||
757 | mov ax,graph_data ;ax - selector of graphic segment |
||
758 | mov [l.gs],ax |
||
759 | mov [l.io],word 128 |
||
760 | mov [l.eflags],dword 0x3202 |
||
761 | |||
762 | mov [l.ss0],os_data |
||
763 | mov ebx,[slot] |
||
764 | shl ebx,12 |
||
765 | add ebx,sysint_stack_data+4096 |
||
766 | mov [l.esp0],ebx |
||
767 | |||
768 | ;copy tss to it place |
||
769 | mov eax,tss_sceleton |
||
770 | mov ebx,[slot] |
||
771 | imul ebx,tss_step |
||
772 | add ebx,tss_data ;ebx - address of application TSS |
||
773 | mov ecx,120 |
||
774 | call memmove |
||
775 | |||
776 | ;Add IO access table - bit array of permitted ports |
||
777 | or eax,-1 |
||
778 | mov edi,[slot] |
||
779 | imul edi,tss_step |
||
780 | add edi,tss_data+128 |
||
781 | mov ecx,2048 |
||
782 | cld |
||
783 | rep stosd ;full access to 2048*8=16384 ports |
||
784 | |||
785 | mov ecx,ebx ;ecx - address of application TSS |
||
786 | mov edi,[slot] |
||
787 | shl edi,3 |
||
788 | ;set TSS descriptor |
||
789 | mov [edi+gdts+tss0+0],word tss_step ;limit (size) |
||
790 | mov [edi+gdts+tss0+2],cx ;part of offset |
||
791 | mov eax,ecx |
||
792 | shr eax,16 |
||
793 | mov [edi+gdts+tss0+4],al ;part of offset |
||
794 | mov [edi+gdts+tss0+7],ah ;part of offset |
||
795 | mov [edi+gdts+tss0+5],word 01010000b*256+11101001b ;system flags |
||
796 | |||
797 | ;flush keyboard and buttons queue |
||
798 | mov [KEY_COUNT],byte 0 |
||
799 | mov [BTN_COUNT],byte 0 |
||
800 | |||
801 | mov edi,[slot] |
||
802 | shl edi,5 |
||
803 | add edi,window_data |
||
804 | mov ebx,[slot] |
||
805 | movzx esi,word [WIN_STACK+ebx*2] |
||
806 | lea esi,[WIN_POS+esi*2] |
||
807 | call windowactivate ;gui initialization |
||
808 | |||
809 | mov ebx,[slot] |
||
810 | shl ebx,5 |
||
811 | mov [CURRENT_TASK+ebx+0xa],byte 0 ;set process state - running |
||
812 | ; set if debuggee |
||
813 | mov eax, [flags] |
||
814 | test byte [flags], 1 |
||
815 | jz .no_debug |
||
816 | mov [CURRENT_TASK+ebx+0xa],byte 1 ;set process state - suspended |
||
817 | mov eax,[CURRENT_TASK] |
||
818 | mov [PROC_BASE+ebx*8+0xac],eax ;set debugger PID - current |
||
819 | .no_debug: |
||
820 | |||
821 | mov esi,new_process_running |
||
822 | call sys_msg_board_str ;output information about succefull startup |
||
823 | |||
824 | ret |
||
825 | endp |
||
826 | |||
827 | pid_to_slot: |
||
828 | ;Input: |
||
829 | ; eax - pid of process |
||
830 | ;Output: |
||
831 | ; eax - slot of process or 0 if process don't exists |
||
832 | ;Search process by PID. |
||
833 | push ebx |
||
834 | push ecx |
||
835 | mov ebx,[TASK_COUNT] |
||
836 | shl ebx,5 |
||
837 | mov ecx,2*32 |
||
838 | |||
839 | .loop: |
||
840 | ;ecx=offset of current process info entry |
||
841 | ;ebx=maximum permitted offset |
||
842 | cmp byte [CURRENT_TASK+ecx+0xa],9 |
||
843 | jz .endloop ;skip empty slots |
||
844 | cmp [CURRENT_TASK+ecx+0x4],eax ;check PID |
||
845 | jz .pid_found |
||
846 | .endloop: |
||
847 | add ecx,32 |
||
848 | cmp ecx,ebx |
||
849 | jle .loop |
||
850 | |||
851 | pop ecx |
||
852 | pop ebx |
||
853 | xor eax,eax |
||
854 | ret |
||
855 | |||
856 | .pid_found: |
||
857 | shr ecx,5 |
||
858 | mov eax,ecx ;convert offset to index of slot |
||
859 | pop ecx |
||
860 | pop ebx |
||
861 | ret |
||
862 | |||
863 | check_region: |
||
864 | ;input: |
||
865 | ; ebx - start of buffer |
||
866 | ; ecx - size of buffer |
||
867 | ;result: |
||
868 | ; eax = 1 region lays in app memory |
||
869 | ; eax = 0 region don't lays in app memory |
||
870 | mov eax,[CURRENT_TASK] |
||
871 | jmp check_process_region |
||
872 | ;----------------------------------------------------------------------------- |
||
873 | check_process_region: |
||
874 | ;input: |
||
875 | ; eax - slot |
||
876 | ; ebx - start of buffer |
||
877 | ; ecx - size of buffer |
||
878 | ;result: |
||
879 | ; eax = 1 region lays in app memory |
||
880 | ; eax = 0 region don't lays in app memory |
||
881 | |||
882 | test ecx,ecx |
||
883 | jle .ok |
||
884 | shl eax,5 |
||
885 | cmp word [CURRENT_TASK+eax+0xa],0 |
||
886 | jnz .failed |
||
887 | shl eax,3 |
||
888 | mov eax,[PROC_BASE+eax+0xb8] |
||
889 | test eax,eax |
||
890 | jz .failed |
||
891 | |||
892 | mov eax,1 |
||
893 | ret |
||
894 | |||
895 | |||
896 | ; call MEM_Get_Linear_Address |
||
897 | ; push ebx |
||
898 | ; push ecx |
||
899 | ; push edx |
||
900 | ; mov edx,ebx |
||
901 | ; and edx,not (4096-1) |
||
902 | ; sub ebx,edx |
||
903 | ; add ecx,ebx |
||
904 | ; mov ebx,edx |
||
905 | ; add ecx,(4096-1) |
||
906 | ; and ecx,not (4096-1) |
||
907 | ;.loop: |
||
908 | ;;eax - linear address of page directory |
||
909 | ;;ebx - current page |
||
910 | ;;ecx - current size |
||
911 | ; mov edx,ebx |
||
912 | ; shr edx,22 |
||
913 | ; mov edx,[eax+4*edx] |
||
914 | ; and edx,not (4096-1) |
||
915 | ; test edx,edx |
||
916 | ; jz .failed1 |
||
917 | ; push eax |
||
918 | ; mov eax,edx |
||
919 | ; call MEM_Get_Linear_Address |
||
920 | ; mov edx,ebx |
||
921 | ; shr edx,12 |
||
922 | ; and edx,(1024-1) |
||
923 | ; mov eax,[eax+4*edx] |
||
924 | ; and eax,not (4096-1) |
||
925 | ; test eax,eax |
||
926 | ; pop eax |
||
927 | ; jz .failed1 |
||
928 | ; add ebx,4096 |
||
929 | ; sub ecx,4096 |
||
930 | ; jg .loop |
||
931 | ; pop edx |
||
932 | ; pop ecx |
||
933 | ; pop ebx |
||
934 | .ok: |
||
935 | mov eax,1 |
||
936 | ret |
||
937 | ; |
||
938 | ;.failed1: |
||
939 | ; pop edx |
||
940 | ; pop ecx |
||
941 | ; pop ebx |
||
942 | .failed: |
||
943 | xor eax,eax |
||
944 | ret |
||
945 | |||
946 | align 4 |
||
947 | proc read_process_memory |
||
948 | ;Input: |
||
949 | ; eax - process slot |
||
950 | ; ebx - buffer address |
||
951 | ; ecx - buffer size |
||
952 | ; edx - start address in other process |
||
953 | ;Output: |
||
954 | ; eax - number of bytes read. |
||
955 | locals |
||
956 | slot dd ? |
||
957 | buff dd ? |
||
958 | r_count dd ? |
||
959 | offset dd ? |
||
960 | tmp_r_cnt dd ? |
||
961 | endl |
||
962 | |||
963 | mov [slot], eax |
||
964 | mov [buff], ebx |
||
965 | mov [r_count], ecx |
||
966 | mov [tmp_r_cnt], ecx |
||
967 | mov [offset], edx |
||
968 | |||
969 | pushad |
||
970 | .read_mem: |
||
971 | mov edx, [offset] |
||
972 | mov ebx, [tmp_r_cnt] |
||
973 | |||
974 | mov ecx, 0x400000 |
||
975 | and edx, 0x3FFFFF |
||
976 | sub ecx, edx |
||
977 | cmp ecx, ebx |
||
978 | jbe @f |
||
979 | mov ecx, ebx |
||
980 | @@: |
||
981 | cmp ecx, 0x8000 |
||
982 | jna @F |
||
983 | mov ecx, 0x8000 |
||
984 | @@: |
||
985 | mov eax, [slot] |
||
986 | shl eax,8 |
||
987 | mov ebx, [offset] |
||
988 | add ebx, new_app_base |
||
989 | push ecx |
||
990 | stdcall map_memEx, [proc_mem_map],\ |
||
991 | [PROC_BASE+eax+0xB8],\ |
||
992 | ebx, ecx |
||
993 | pop ecx |
||
994 | |||
995 | mov esi, [offset] |
||
996 | and esi, 0xfff |
||
997 | add esi, [proc_mem_map] |
||
998 | mov edi, [buff] |
||
999 | mov edx, ecx |
||
1000 | rep movsb |
||
1001 | |||
1002 | add [offset], edx |
||
1003 | sub [tmp_r_cnt], edx |
||
1004 | jnz .read_mem |
||
1005 | |||
1006 | popad |
||
1007 | mov eax, [r_count] |
||
1008 | ret |
||
1009 | |||
1010 | endp |
||
1011 | |||
1012 | align 4 |
||
1013 | proc write_process_memory |
||
1014 | ;Input: |
||
1015 | ; eax - process slot |
||
1016 | ; ebx - buffer address |
||
1017 | ; ecx - buffer size |
||
1018 | ; edx - start address in other process |
||
1019 | ;Output: |
||
1020 | ; eax - number of bytes written |
||
1021 | |||
1022 | locals |
||
1023 | slot dd ? |
||
1024 | buff dd ? |
||
1025 | w_count dd ? |
||
1026 | offset dd ? |
||
1027 | tmp_w_cnt dd ? |
||
1028 | endl |
||
1029 | |||
1030 | mov [slot], eax |
||
1031 | mov [buff], ebx |
||
1032 | mov [w_count], ecx |
||
1033 | mov [tmp_w_cnt], ecx |
||
1034 | mov [offset], edx |
||
1035 | |||
1036 | pushad |
||
1037 | .read_mem: |
||
1038 | mov edx, [offset] |
||
1039 | mov ebx, [tmp_w_cnt] |
||
1040 | |||
1041 | mov ecx, 0x400000 |
||
1042 | and edx, 0x3FFFFF |
||
1043 | sub ecx, edx |
||
1044 | cmp ecx, ebx |
||
1045 | jbe @f |
||
1046 | mov ecx, ebx |
||
1047 | @@: |
||
1048 | cmp ecx, 0x8000 |
||
1049 | jna @F |
||
1050 | mov ecx, 0x8000 |
||
1051 | @@: |
||
1052 | mov eax, [slot] |
||
1053 | shl eax,8 |
||
1054 | mov ebx, [offset] |
||
1055 | add ebx, new_app_base |
||
1056 | push ecx |
||
1057 | stdcall map_memEx, [proc_mem_map],\ |
||
1058 | [PROC_BASE+eax+0xB8],\ |
||
1059 | ebx, ecx |
||
1060 | pop ecx |
||
1061 | |||
1062 | mov edi, [offset] |
||
1063 | and edi, 0xfff |
||
1064 | add edi, [proc_mem_map] |
||
1065 | mov esi, [buff] |
||
1066 | mov edx, ecx |
||
1067 | rep movsb |
||
1068 | |||
1069 | add [offset], edx |
||
1070 | sub [tmp_w_cnt], edx |
||
1071 | jnz .read_mem |
||
1072 | |||
1073 | popad |
||
1074 | mov eax, [w_count] |
||
1075 | ret |
||
1076 | endp |
||
1077 | |||
1078 | |||
1079 | align 4 |
||
1080 | proc new_sys_threads |
||
1081 | locals |
||
1082 | thread_start dd ? |
||
1083 | thread_stack dd ? |
||
1084 | params dd ? |
||
1085 | slot dd ? |
||
1086 | endl |
||
1087 | |||
1088 | mov [thread_start], ebx |
||
1089 | mov [thread_stack], ecx |
||
1090 | mov [params], 0 |
||
1091 | |||
1092 | xor edx,edx ; flags=0 |
||
1093 | |||
1094 | cmp eax,1 |
||
1095 | jnz .failed ;other subfunctions |
||
1096 | mov esi,new_process_loading |
||
1097 | call sys_msg_board_str |
||
1098 | |||
1099 | .wait_lock: |
||
1100 | cmp [application_table_status],0 |
||
1101 | je .get_lock |
||
1102 | call change_task |
||
1103 | jmp .wait_lock |
||
1104 | |||
1105 | .get_lock: |
||
1106 | mov eax, 1 |
||
1107 | xchg eax, [application_table_status] |
||
1108 | cmp eax, 0 |
||
1109 | jne .wait_lock |
||
1110 | |||
1111 | call set_application_table_status |
||
1112 | |||
1113 | call get_new_process_place |
||
1114 | test eax, eax |
||
1115 | jz .failed |
||
1116 | |||
1117 | mov [slot], eax |
||
1118 | |||
1119 | xor eax,eax |
||
1120 | mov [app_i_param],eax |
||
1121 | mov [app_i_icon],eax |
||
1122 | |||
1123 | mov ebx, [thread_start] |
||
1124 | mov ecx, [thread_stack] |
||
1125 | |||
1126 | mov [app_start],ebx |
||
1127 | mov [app_esp],ecx |
||
1128 | |||
1129 | mov esi,[CURRENT_TASK] |
||
1130 | shl esi,8 |
||
1131 | add esi,PROC_BASE |
||
1132 | mov ebx,esi ;ebx=esi - pointer to extended information about current thread |
||
1133 | |||
1134 | mov edi,[slot] |
||
1135 | shl edi,8 |
||
1136 | add edi,PROC_BASE |
||
1137 | mov edx,edi ;edx=edi - pointer to extended infomation about new thread |
||
1138 | mov ecx,256/4 |
||
1139 | rep stosd ;clean extended information about new thread |
||
1140 | mov edi,edx |
||
1141 | mov ecx,11 |
||
1142 | rep movsb ;copy process name |
||
1143 | mov eax,[ebx+0x8c] |
||
1144 | mov [app_mem],eax ;set memory size |
||
1145 | mov eax,[ebx+0xb8] |
||
1146 | mov [edx+0xb8],eax ;copy page directory |
||
1147 | |||
1148 | stdcall add_app_parameters, [slot], new_app_base,\ |
||
1149 | [params], dword 0,dword 0 |
||
1150 | |||
1151 | mov esi,new_process_running |
||
1152 | call sys_msg_board_str ;output information about succefull startup |
||
1153 | |||
1154 | mov [application_table_status],0 ;unlock application_table_status mutex |
||
1155 | mov eax,[process_number] ;set result |
||
1156 | ret |
||
1157 | .failed: |
||
1158 | mov [application_table_status],0 |
||
1159 | mov eax,-1 |
||
1160 | ret |
||
1161 | endp |
||
1162 | |||
1163 | align 4 |
||
1164 | proc wait_mutex stdcall, mutex:dword |
||
1165 | mov ebx, [mutex] |
||
1166 | .wait_lock: |
||
1167 | cmp dword [ebx],0 |
||
1168 | je .get_lock |
||
1169 | push ebx |
||
1170 | call change_task |
||
1171 | pop ebx |
||
1172 | jmp .wait_lock |
||
1173 | |||
1174 | .get_lock: |
||
1175 | mov eax, 1 |
||
1176 | xchg eax, [ebx] |
||
1177 | test eax, eax |
||
1178 | jnz .wait_lock |
||
1179 | ret |
||
1180 | endp |
||
1181 | |||
1182 | |||
1183 | include "debug.inc" |
||
1184 | |||
1185 | iglobal |
||
1186 | new_process_loading db 'K : New Process - loading',13,10,0 |
||
1187 | new_process_running db 'K : New Process - done',13,10,0 |
||
1188 | start_not_enough_memory db 'K : New Process - not enough memory',13,10,0 |
||
1189 | endg256 |
||
1190 |