Rev 5201 | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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5565 | serge | 3 | ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; |
431 | serge | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
593 | mikedld | 8 | $Revision: 5565 $ |
9 | |||
10 | |||
40 | halyavin | 11 | ; diamond, 2006 |
12 | sys_debug_services: |
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1329 | Lrz | 13 | cmp ebx, 9 |
1056 | Galkov | 14 | ja @f |
1329 | Lrz | 15 | jmp dword [sys_debug_services_table+ebx*4] |
2434 | Serge | 16 | @@: |
17 | ret |
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1329 | Lrz | 18 | iglobal |
19 | align 4 |
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40 | halyavin | 20 | sys_debug_services_table: |
1056 | Galkov | 21 | dd debug_set_event_data |
22 | dd debug_getcontext |
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23 | dd debug_setcontext |
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24 | dd debug_detach |
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25 | dd debug_suspend |
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26 | dd debug_resume |
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27 | dd debug_read_process_memory |
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28 | dd debug_write_process_memory |
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29 | dd debug_terminate |
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30 | dd debug_set_drx |
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1329 | Lrz | 31 | endg |
40 | halyavin | 32 | debug_set_event_data: |
1329 | Lrz | 33 | ; in: ecx = pointer |
40 | halyavin | 34 | ; destroys eax |
465 | serge | 35 | mov eax, [current_slot] |
1329 | Lrz | 36 | mov [eax+APPDATA.dbg_event_mem], ecx |
1056 | Galkov | 37 | ret |
40 | halyavin | 38 | |
39 | get_debuggee_slot: |
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1329 | Lrz | 40 | ; in: ecx=PID |
40 | halyavin | 41 | ; out: CF=1 if error |
42 | ; CF=0 and eax=slot*0x20 if ok |
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43 | ; out: interrupts disabled |
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1056 | Galkov | 44 | cli |
1329 | Lrz | 45 | mov eax, ecx |
1056 | Galkov | 46 | call pid_to_slot |
47 | test eax, eax |
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48 | jz .ret_bad |
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49 | shl eax, 5 |
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50 | push ebx |
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379 | serge | 51 | mov ebx, [CURRENT_TASK] |
380 | serge | 52 | cmp [SLOT_BASE+eax*8+APPDATA.debugger_slot], ebx |
1056 | Galkov | 53 | pop ebx |
54 | jnz .ret_bad |
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55 | ; clc ; automatically |
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56 | ret |
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40 | halyavin | 57 | .ret_bad: |
1056 | Galkov | 58 | stc |
59 | ret |
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40 | halyavin | 60 | |
61 | debug_detach: |
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1329 | Lrz | 62 | ; in: ecx=pid |
40 | halyavin | 63 | ; destroys eax,ebx |
1056 | Galkov | 64 | call get_debuggee_slot |
65 | jc .ret |
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380 | serge | 66 | and dword [eax*8+SLOT_BASE+APPDATA.debugger_slot], 0 |
1056 | Galkov | 67 | call do_resume |
40 | halyavin | 68 | .ret: |
1056 | Galkov | 69 | sti |
70 | ret |
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40 | halyavin | 71 | |
72 | debug_terminate: |
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1329 | Lrz | 73 | ; in: ecx=pid |
1056 | Galkov | 74 | call get_debuggee_slot |
75 | jc debug_detach.ret |
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76 | mov ecx, eax |
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77 | shr ecx, 5 |
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1329 | Lrz | 78 | ; push 2 |
79 | ; pop ebx |
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2434 | Serge | 80 | mov edx, esi |
1329 | Lrz | 81 | jmp sysfn_terminate |
40 | halyavin | 82 | |
83 | debug_suspend: |
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1329 | Lrz | 84 | ; in: ecx=pid |
85 | ; destroys eax,ecx |
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667 | diamond | 86 | cli |
1329 | Lrz | 87 | mov eax, ecx |
667 | diamond | 88 | call pid_to_slot |
680 | diamond | 89 | shl eax, 5 |
667 | diamond | 90 | jz .ret |
1329 | Lrz | 91 | mov cl, [CURRENT_TASK+eax+TASKDATA.state] ; process state |
92 | test cl, cl |
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1056 | Galkov | 93 | jz .1 |
1329 | Lrz | 94 | cmp cl, 5 |
1056 | Galkov | 95 | jnz .ret |
1329 | Lrz | 96 | mov cl, 2 |
2434 | Serge | 97 | .2: |
98 | mov [CURRENT_TASK+eax+TASKDATA.state], cl |
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40 | halyavin | 99 | .ret: |
1056 | Galkov | 100 | sti |
101 | ret |
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40 | halyavin | 102 | .1: |
1329 | Lrz | 103 | inc ecx |
1056 | Galkov | 104 | jmp .2 |
40 | halyavin | 105 | |
106 | do_resume: |
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1329 | Lrz | 107 | mov cl, [CURRENT_TASK+eax+TASKDATA.state] |
108 | cmp cl, 1 |
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1056 | Galkov | 109 | jz .1 |
1329 | Lrz | 110 | cmp cl, 2 |
1056 | Galkov | 111 | jnz .ret |
1329 | Lrz | 112 | mov cl, 5 |
2434 | Serge | 113 | .2: |
114 | mov [CURRENT_TASK+eax+TASKDATA.state], cl |
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115 | .ret: |
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116 | ret |
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117 | .1: |
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118 | dec ecx |
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1056 | Galkov | 119 | jmp .2 |
40 | halyavin | 120 | |
121 | debug_resume: |
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1329 | Lrz | 122 | ; in: ecx=pid |
40 | halyavin | 123 | ; destroys eax,ebx |
667 | diamond | 124 | cli |
1329 | Lrz | 125 | mov eax, ecx |
667 | diamond | 126 | call pid_to_slot |
680 | diamond | 127 | shl eax, 5 |
667 | diamond | 128 | jz .ret |
129 | call do_resume |
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2434 | Serge | 130 | .ret: |
131 | sti |
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1056 | Galkov | 132 | ret |
40 | halyavin | 133 | |
134 | debug_getcontext: |
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135 | ; in: |
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1329 | Lrz | 136 | ; ecx=pid |
137 | ; edx=sizeof(CONTEXT) |
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138 | ; esi->CONTEXT |
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5201 | serge | 139 | ; destroys eax,ebx,ecx,edx,esi,edi |
140 | |||
141 | xor ebx, ebx ; 0 - get only gp regs |
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142 | cmp edx, 40 |
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143 | je .std_ctx |
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144 | |||
145 | cmp edx, 48+288 |
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146 | jne .ret |
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147 | |||
148 | inc ebx ; 1 - get sse context |
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149 | ; TODO legacy 32-bit FPU/MMX context |
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150 | .std_ctx: |
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1329 | Lrz | 151 | ; push ecx |
152 | ; mov ecx, esi |
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1056 | Galkov | 153 | call check_region |
1329 | Lrz | 154 | ; pop ecx |
1056 | Galkov | 155 | dec eax |
156 | jnz .ret |
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157 | call get_debuggee_slot |
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158 | jc .ret |
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5201 | serge | 159 | |
160 | shr eax, 5 |
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161 | cmp eax, [fpu_owner] |
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162 | jne @f |
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163 | inc bh ; set swap context flag |
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164 | @@: |
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165 | shl eax, 8 |
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1329 | Lrz | 166 | mov edi, esi |
5201 | serge | 167 | mov eax, [eax+SLOT_BASE+APPDATA.pl0_stack] |
2434 | Serge | 168 | lea esi, [eax+RING0_STACK_SIZE] |
1329 | Lrz | 169 | |
40 | halyavin | 170 | .ring0: |
171 | ; note that following code assumes that all interrupt/exception handlers |
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465 | serge | 172 | ; saves ring-3 context by pushad in this order |
173 | ; top of ring0 stack: ring3 stack ptr (ss+esp), iret data (cs+eip+eflags), pushad |
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174 | sub esi, 8+12+20h |
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175 | lodsd ;edi |
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1056 | Galkov | 176 | mov [edi+24h], eax |
465 | serge | 177 | lodsd ;esi |
1056 | Galkov | 178 | mov [edi+20h], eax |
465 | serge | 179 | lodsd ; ebp |
1056 | Galkov | 180 | mov [edi+1Ch], eax |
465 | serge | 181 | lodsd ;esp |
182 | lodsd ;ebx |
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1056 | Galkov | 183 | mov [edi+14h], eax |
465 | serge | 184 | lodsd ;edx |
1056 | Galkov | 185 | mov [edi+10h], eax |
465 | serge | 186 | lodsd ;ecx |
1056 | Galkov | 187 | mov [edi+0Ch], eax |
465 | serge | 188 | lodsd ;eax |
1056 | Galkov | 189 | mov [edi+8], eax |
465 | serge | 190 | lodsd ;eip |
1056 | Galkov | 191 | mov [edi], eax |
465 | serge | 192 | lodsd ;cs |
193 | lodsd ;eflags |
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1056 | Galkov | 194 | mov [edi+4], eax |
465 | serge | 195 | lodsd ;esp |
1056 | Galkov | 196 | mov [edi+18h], eax |
5201 | serge | 197 | |
198 | dec bl |
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199 | js .ret |
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200 | dec bl |
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201 | jns .ret |
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202 | |||
203 | test bh, bh ; check swap flag |
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204 | jz @F |
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205 | |||
206 | ffree st0 ; swap context |
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207 | @@: |
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208 | |||
209 | add esi, 4 ;top of ring0 stack |
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210 | ;fpu/sse context saved here |
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211 | add edi, 40 |
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212 | mov eax, 1 ;sse context |
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213 | stosd |
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214 | xor eax, eax ;reserved dword |
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215 | stosd |
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216 | |||
217 | mov ecx, 288/4 |
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218 | rep movsd ;copy sse context |
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219 | |||
40 | halyavin | 220 | .ret: |
1056 | Galkov | 221 | sti |
222 | ret |
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40 | halyavin | 223 | |
224 | debug_setcontext: |
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225 | ; in: |
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1329 | Lrz | 226 | ; ecx=pid |
227 | ; edx=sizeof(CONTEXT) |
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228 | ; esi->CONTEXT |
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40 | halyavin | 229 | ; destroys eax,ecx,edx,esi,edi |
1329 | Lrz | 230 | cmp edx, 28h |
1056 | Galkov | 231 | jnz .ret |
1329 | Lrz | 232 | ; push ebx |
233 | ; mov ebx, edx |
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1056 | Galkov | 234 | call check_region |
1329 | Lrz | 235 | ; pop ebx |
1056 | Galkov | 236 | dec eax |
237 | jnz .ret |
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238 | call get_debuggee_slot |
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239 | jc .stiret |
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1329 | Lrz | 240 | ; mov esi, edx |
2434 | Serge | 241 | mov eax, [eax*8+SLOT_BASE+APPDATA.pl0_stack] |
242 | lea edi, [eax+RING0_STACK_SIZE] |
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1329 | Lrz | 243 | |
40 | halyavin | 244 | .ring0: |
465 | serge | 245 | sub edi, 8+12+20h |
246 | mov eax, [esi+24h] ;edi |
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1056 | Galkov | 247 | stosd |
465 | serge | 248 | mov eax, [esi+20h] ;esi |
1056 | Galkov | 249 | stosd |
465 | serge | 250 | mov eax, [esi+1Ch] ;ebp |
1056 | Galkov | 251 | stosd |
465 | serge | 252 | scasd |
253 | mov eax, [esi+14h] ;ebx |
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1056 | Galkov | 254 | stosd |
465 | serge | 255 | mov eax, [esi+10h] ;edx |
1056 | Galkov | 256 | stosd |
465 | serge | 257 | mov eax, [esi+0Ch] ;ecx |
1056 | Galkov | 258 | stosd |
465 | serge | 259 | mov eax, [esi+8] ;eax |
1056 | Galkov | 260 | stosd |
465 | serge | 261 | mov eax, [esi] ;eip |
1056 | Galkov | 262 | stosd |
263 | scasd |
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465 | serge | 264 | mov eax, [esi+4] ;eflags |
1056 | Galkov | 265 | stosd |
465 | serge | 266 | mov eax, [esi+18h] ;esp |
1056 | Galkov | 267 | stosd |
40 | halyavin | 268 | .stiret: |
1056 | Galkov | 269 | sti |
40 | halyavin | 270 | .ret: |
1056 | Galkov | 271 | ret |
40 | halyavin | 272 | |
66 | diamond | 273 | debug_set_drx: |
1056 | Galkov | 274 | call get_debuggee_slot |
275 | jc .errret |
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276 | mov ebp, eax |
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380 | serge | 277 | lea eax, [eax*8+SLOT_BASE+APPDATA.dbg_regs] |
66 | diamond | 278 | ; [eax]=dr0, [eax+4]=dr1, [eax+8]=dr2, [eax+C]=dr3 |
279 | ; [eax+10]=dr7 |
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1329 | Lrz | 280 | cmp esi, OS_BASE |
2434 | Serge | 281 | jae .errret |
1329 | Lrz | 282 | cmp dl, 3 |
1056 | Galkov | 283 | ja .errret |
1329 | Lrz | 284 | mov ecx, dr7 |
285 | ;fix me |
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2434 | Serge | 286 | xchg ecx, edx |
1329 | Lrz | 287 | shr edx, cl |
288 | shr edx, cl |
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2434 | Serge | 289 | xchg ecx, edx |
1329 | Lrz | 290 | |
291 | test ecx, 2 ; bit 1+2*index = G0..G3, global break enable |
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1056 | Galkov | 292 | jnz .errret2 |
1329 | Lrz | 293 | test dh, dh |
1056 | Galkov | 294 | jns .new |
66 | diamond | 295 | ; clear breakpoint |
1329 | Lrz | 296 | movzx edx, dl |
297 | add edx, edx |
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298 | and dword [eax+edx*2], 0 ; clear DR |
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299 | btr dword [eax+10h], edx ; clear L bit |
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1056 | Galkov | 300 | test byte [eax+10h], 55h |
301 | jnz .okret |
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465 | serge | 302 | ; imul eax, ebp, tss_step/32 |
303 | ; and byte [eax + tss_data + TSS._trap], not 1 |
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2434 | Serge | 304 | and [ebp*8 + SLOT_BASE+APPDATA.dbg_state], not 1 |
66 | diamond | 305 | .okret: |
1329 | Lrz | 306 | and dword [esp+32], 0 |
1056 | Galkov | 307 | sti |
308 | ret |
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66 | diamond | 309 | .errret: |
1056 | Galkov | 310 | sti |
1329 | Lrz | 311 | mov dword [esp+32], 1 |
1056 | Galkov | 312 | ret |
66 | diamond | 313 | .errret2: |
1056 | Galkov | 314 | sti |
1329 | Lrz | 315 | mov dword [esp+32], 2 |
1056 | Galkov | 316 | ret |
66 | diamond | 317 | .new: |
318 | ; add new breakpoint |
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1329 | Lrz | 319 | ; dl=index; dh=flags; esi=address |
320 | test dh, 0xF0 |
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1056 | Galkov | 321 | jnz .errret |
1329 | Lrz | 322 | mov cl, dh |
323 | and cl, 3 |
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324 | cmp cl, 2 |
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1056 | Galkov | 325 | jz .errret |
1329 | Lrz | 326 | mov cl, dh |
327 | shr cl, 2 |
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328 | cmp cl, 2 |
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1056 | Galkov | 329 | jz .errret |
1329 | Lrz | 330 | |
2434 | Serge | 331 | mov ebx, esi |
1329 | Lrz | 332 | test bl, dl |
333 | |||
1056 | Galkov | 334 | jnz .errret |
335 | or byte [eax+10h+1], 3 ; set GE and LE flags |
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1329 | Lrz | 336 | |
337 | movzx edx, dh |
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338 | movzx ecx, dl |
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1056 | Galkov | 339 | add ecx, ecx |
340 | bts dword [eax+10h], ecx ; set L flag |
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341 | add ecx, ecx |
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1329 | Lrz | 342 | mov [eax+ecx], ebx;esi ; set DR |
343 | shl edx, cl |
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344 | mov ebx, 0xF |
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1056 | Galkov | 345 | shl ebx, cl |
1329 | Lrz | 346 | not ebx |
347 | and [eax+10h+2], bx |
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348 | or [eax+10h+2], dx ; set R/W and LEN fields |
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465 | serge | 349 | ; imul eax, ebp, tss_step/32 |
350 | ; or byte [eax + tss_data + TSS._trap], 1 |
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2434 | Serge | 351 | or [ebp*8 + SLOT_BASE+APPDATA.dbg_state], 1 |
1056 | Galkov | 352 | jmp .okret |
66 | diamond | 353 | |
40 | halyavin | 354 | debug_read_process_memory: |
355 | ; in: |
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1329 | Lrz | 356 | ; ecx=pid |
357 | ; edx=length |
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358 | ; edi->buffer in debugger |
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359 | ; esi=address in debuggee |
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44 | halyavin | 360 | ; out: [esp+36]=sizeof(read) |
40 | halyavin | 361 | ; destroys all |
1329 | Lrz | 362 | ; push ebx |
363 | ; mov ebx, esi |
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1056 | Galkov | 364 | call check_region |
1329 | Lrz | 365 | ; pop ebx |
1056 | Galkov | 366 | dec eax |
367 | jnz .err |
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368 | call get_debuggee_slot |
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369 | jc .err |
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370 | shr eax, 5 |
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1394 | diamond | 371 | mov ecx, edi |
1056 | Galkov | 372 | call read_process_memory |
373 | sti |
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1329 | Lrz | 374 | mov dword [esp+32], eax |
1056 | Galkov | 375 | ret |
44 | halyavin | 376 | .err: |
1329 | Lrz | 377 | or dword [esp+32], -1 |
1056 | Galkov | 378 | ret |
40 | halyavin | 379 | |
380 | debug_write_process_memory: |
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381 | ; in: |
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1329 | Lrz | 382 | ; ecx=pid |
383 | ; edx=length |
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384 | ; edi->buffer in debugger |
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385 | ; esi=address in debuggee |
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44 | halyavin | 386 | ; out: [esp+36]=sizeof(write) |
40 | halyavin | 387 | ; destroys all |
1329 | Lrz | 388 | ; push ebx |
389 | ; mov ebx, esi |
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1056 | Galkov | 390 | call check_region |
1329 | Lrz | 391 | ; pop ebx |
1056 | Galkov | 392 | dec eax |
393 | jnz debug_read_process_memory.err |
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394 | call get_debuggee_slot |
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395 | jc debug_read_process_memory.err |
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396 | shr eax, 5 |
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1394 | diamond | 397 | mov ecx, edi |
1056 | Galkov | 398 | call write_process_memory |
399 | sti |
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1329 | Lrz | 400 | mov [esp+32], eax |
1056 | Galkov | 401 | ret |
40 | halyavin | 402 | |
403 | debugger_notify: |
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404 | ; in: eax=debugger slot |
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405 | ; ecx=size of debug message |
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406 | ; [esp+4]..[esp+4+ecx]=message |
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407 | ; interrupts must be disabled! |
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408 | ; destroys all general registers |
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409 | ; interrupts remain disabled |
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1056 | Galkov | 410 | xchg ebp, eax |
411 | mov edi, [timer_ticks] |
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412 | add edi, 500 ; 5 sec timeout |
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40 | halyavin | 413 | .1: |
1056 | Galkov | 414 | mov eax, ebp |
415 | shl eax, 8 |
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1394 | diamond | 416 | mov esi, [SLOT_BASE+eax+APPDATA.dbg_event_mem] |
417 | test esi, esi |
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1056 | Galkov | 418 | jz .ret |
40 | halyavin | 419 | ; read buffer header |
1056 | Galkov | 420 | push ecx |
421 | push eax |
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422 | push eax |
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423 | mov eax, ebp |
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1394 | diamond | 424 | mov ecx, esp |
425 | mov edx, 8 |
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1056 | Galkov | 426 | call read_process_memory |
1394 | diamond | 427 | cmp eax, edx |
1056 | Galkov | 428 | jz @f |
429 | add esp, 12 |
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430 | jmp .ret |
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40 | halyavin | 431 | @@: |
1394 | diamond | 432 | cmp dword [ecx], 0 |
1056 | Galkov | 433 | jg @f |
40 | halyavin | 434 | .2: |
1056 | Galkov | 435 | pop ecx |
436 | pop ecx |
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437 | pop ecx |
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379 | serge | 438 | cmp dword [CURRENT_TASK], 1 |
1056 | Galkov | 439 | jnz .notos |
440 | cmp [timer_ticks], edi |
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441 | jae .ret |
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66 | diamond | 442 | .notos: |
1056 | Galkov | 443 | sti |
444 | call change_task |
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445 | cli |
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446 | jmp .1 |
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40 | halyavin | 447 | @@: |
1394 | diamond | 448 | mov edx, [ecx+8] |
449 | add edx, [ecx+4] |
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450 | cmp edx, [ecx] |
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1056 | Galkov | 451 | ja .2 |
40 | halyavin | 452 | ; advance buffer position |
1394 | diamond | 453 | push edx |
454 | mov edx, 4 |
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455 | sub ecx, edx |
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1056 | Galkov | 456 | mov eax, ebp |
1394 | diamond | 457 | add esi, edx |
1056 | Galkov | 458 | call write_process_memory |
459 | pop eax |
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40 | halyavin | 460 | ; write message |
1056 | Galkov | 461 | mov eax, ebp |
1394 | diamond | 462 | add esi, edx |
463 | add esi, [ecx+8] |
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464 | add ecx, 20 |
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465 | pop edx |
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466 | pop edx |
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467 | pop edx |
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1056 | Galkov | 468 | call write_process_memory |
40 | halyavin | 469 | ; new debug event |
1056 | Galkov | 470 | mov eax, ebp |
471 | shl eax, 8 |
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380 | serge | 472 | or byte [SLOT_BASE+eax+APPDATA.event_mask+1], 1 ; set flag 100h |
40 | halyavin | 473 | .ret: |
1056 | Galkov | 474 | ret |