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IntelFrameworkModulePkg: Remove X86 ASM and S files
[mirror_edk2.git] / SourceLevelDebugPkg / Library / DebugAgent / DebugAgentCommon / Ia32 / AsmFuncs.asm
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18b144ea 1;------------------------------------------------------------------------------\r
2;\r
d9044ec5 3; Copyright (c) 2010 - 2015, Intel Corporation. All rights reserved.<BR>\r
18b144ea 4; This program and the accompanying materials\r
5; are licensed and made available under the terms and conditions of the BSD License\r
6; which accompanies this distribution. The full text of the license may be found at\r
7; http://opensource.org/licenses/bsd-license.php.\r
8;\r
9; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
10; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
11;\r
12; Module Name:\r
13;\r
14; AsmFuncs.asm\r
15;\r
16; Abstract:\r
17;\r
18; Debug interrupt handle functions.\r
19;\r
20;------------------------------------------------------------------------------\r
21\r
22#include "DebugException.h"\r
23\r
24.686p\r
25.xmm\r
26.model flat,c\r
27\r
28;\r
29; InterruptProcess()\r
30;\r
31InterruptProcess PROTO C\r
32\r
33public Exception0Handle, TimerInterruptHandle, ExceptionStubHeaderSize\r
34\r
8cc26df4
JF		 35AGENT_HANDLER_SIGNATURE MACRO\r
36 db 41h, 47h, 54h, 48h ; SIGNATURE_32('A','G','T','H')\r
37ENDM\r
38\r
18b144ea 39.data\r
40\r
19ee4a90 41ExceptionStubHeaderSize DD Exception1Handle - Exception0Handle\r
18b144ea 42CommonEntryAddr DD CommonEntry\r
43\r
44.code\r
45\r
8cc26df4 46AGENT_HANDLER_SIGNATURE\r
18b144ea 47Exception0Handle:\r
48 cli\r
49 push eax\r
50 mov eax, 0\r
51 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 52AGENT_HANDLER_SIGNATURE\r
18b144ea 53Exception1Handle:\r
54 cli\r
55 push eax\r
56 mov eax, 1\r
57 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 58AGENT_HANDLER_SIGNATURE\r
18b144ea 59Exception2Handle:\r
60 cli\r
61 push eax\r
62 mov eax, 2\r
63 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 64AGENT_HANDLER_SIGNATURE\r
18b144ea 65Exception3Handle:\r
66 cli\r
67 push eax\r
68 mov eax, 3\r
69 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 70AGENT_HANDLER_SIGNATURE\r
18b144ea 71Exception4Handle:\r
72 cli\r
73 push eax\r
74 mov eax, 4\r
75 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 76AGENT_HANDLER_SIGNATURE\r
18b144ea 77Exception5Handle:\r
78 cli\r
79 push eax\r
80 mov eax, 5\r
81 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 82AGENT_HANDLER_SIGNATURE\r
18b144ea 83Exception6Handle:\r
84 cli\r
85 push eax\r
86 mov eax, 6\r
87 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 88AGENT_HANDLER_SIGNATURE\r
18b144ea 89Exception7Handle:\r
90 cli\r
91 push eax\r
92 mov eax, 7\r
93 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 94AGENT_HANDLER_SIGNATURE\r
18b144ea 95Exception8Handle:\r
96 cli\r
97 push eax\r
98 mov eax, 8\r
99 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 100AGENT_HANDLER_SIGNATURE\r
18b144ea 101Exception9Handle:\r
102 cli\r
103 push eax\r
104 mov eax, 9\r
105 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 106AGENT_HANDLER_SIGNATURE\r
18b144ea 107Exception10Handle:\r
108 cli\r
109 push eax\r
110 mov eax, 10\r
111 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 112AGENT_HANDLER_SIGNATURE\r
18b144ea 113Exception11Handle:\r
114 cli\r
115 push eax\r
116 mov eax, 11\r
117 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 118AGENT_HANDLER_SIGNATURE\r
18b144ea 119Exception12Handle:\r
120 cli\r
121 push eax\r
122 mov eax, 12\r
123 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 124AGENT_HANDLER_SIGNATURE\r
18b144ea 125Exception13Handle:\r
126 cli\r
127 push eax\r
128 mov eax, 13\r
129 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 130AGENT_HANDLER_SIGNATURE\r
18b144ea 131Exception14Handle:\r
132 cli\r
133 push eax\r
134 mov eax, 14\r
135 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 136AGENT_HANDLER_SIGNATURE\r
18b144ea 137Exception15Handle:\r
138 cli\r
139 push eax\r
140 mov eax, 15\r
141 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 142AGENT_HANDLER_SIGNATURE\r
18b144ea 143Exception16Handle:\r
144 cli\r
145 push eax\r
146 mov eax, 16\r
147 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 148AGENT_HANDLER_SIGNATURE\r
18b144ea 149Exception17Handle:\r
150 cli\r
151 push eax\r
152 mov eax, 17\r
153 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 154AGENT_HANDLER_SIGNATURE\r
18b144ea 155Exception18Handle:\r
156 cli\r
157 push eax\r
158 mov eax, 18\r
159 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 160AGENT_HANDLER_SIGNATURE\r
18b144ea 161Exception19Handle:\r
162 cli\r
163 push eax\r
164 mov eax, 19\r
165 jmp dword ptr [CommonEntryAddr]\r
8cc26df4 166AGENT_HANDLER_SIGNATURE\r
18b144ea 167TimerInterruptHandle:\r
168 cli\r
169 push eax\r
170 mov eax, 32\r
171 jmp dword ptr [CommonEntryAddr]\r
172\r
173CommonEntry:\r
174;\r
175; +---------------------+\r
176; + EFlags +\r
177; +---------------------+\r
178; + CS +\r
179; +---------------------+\r
180; + EIP +\r
181; +---------------------+\r
182; + Error Code +\r
183; +---------------------+\r
184; + EAX / Vector Number +\r
185; +---------------------+\r
186; + EBP +\r
187; +---------------------+ <-- EBP\r
188;\r
189 cmp eax, DEBUG_EXCEPT_DOUBLE_FAULT\r
190 je NoExtrPush\r
191 cmp eax, DEBUG_EXCEPT_INVALID_TSS\r
192 je NoExtrPush\r
193 cmp eax, DEBUG_EXCEPT_SEG_NOT_PRESENT\r
194 je NoExtrPush\r
195 cmp eax, DEBUG_EXCEPT_STACK_FAULT\r
196 je NoExtrPush\r
197 cmp eax, DEBUG_EXCEPT_GP_FAULT\r
198 je NoExtrPush\r
199 cmp eax, DEBUG_EXCEPT_PAGE_FAULT\r
200 je NoExtrPush\r
201 cmp eax, DEBUG_EXCEPT_ALIGNMENT_CHECK\r
202 je NoExtrPush\r
203\r
204 push [esp]\r
205 mov dword ptr [esp + 4], 0\r
206\r
207NoExtrPush:\r
208\r
209 push ebp\r
210 mov ebp, esp ; save esp in ebp\r
211 ;\r
212 ; Make stack 16-byte alignment to make sure save fxrstor later\r
213 ;\r
214 and esp, 0fffffff0h\r
215 sub esp, 12\r
216\r
217 ; store UINT32 Edi, Esi, Ebp, Ebx, Edx, Ecx, Eax;\r
218 push dword ptr [ebp + 4] ; original eax\r
219 push ebx\r
220 push ecx\r
221 push edx\r
222 mov ebx, eax ; save vector in ebx\r
223 mov eax, ebp\r
224 add eax, 4 * 6\r
225 push eax ; original ESP\r
226 push dword ptr [ebp] ; EBP\r
227 push esi\r
228 push edi\r
229\r
230 ;; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;\r
231 ;; insure FXSAVE/FXRSTOR is enabled in CR4...\r
232 ;; ... while we're at it, make sure DE is also enabled...\r
5f72e68c
MK		 233 mov eax, 1\r
234 push ebx ; temporarily save value of ebx on stack \r
235 cpuid ; use CPUID to determine if FXSAVE/FXRESTOR and\r
236 ; DE are supported\r
237 pop ebx ; retore value of ebx that was overwritten by CPUID \r
18b144ea 238 mov eax, cr4\r
5f72e68c
MK		 239 push eax ; push cr4 firstly\r
240 test edx, BIT24 ; Test for FXSAVE/FXRESTOR support\r
241 jz @F\r
242 or eax, BIT9 ; Set CR4.OSFXSR\r
243@@: \r
244 test edx, BIT2 ; Test for Debugging Extensions support\r
245 jz @F\r
246 or eax, BIT3 ; Set CR4.DE\r
247@@: \r
18b144ea 248 mov cr4, eax\r
249 mov eax, cr3\r
250 push eax\r
251 mov eax, cr2\r
252 push eax\r
253 push 0 ; cr0 will not saved???\r
254 mov eax, cr0\r
255 push eax\r
256\r
257 xor ecx, ecx\r
258 mov ecx, Ss\r
259 push ecx\r
260 mov ecx, Cs\r
261 push ecx\r
262 mov ecx, Ds\r
263 push ecx\r
264 mov ecx, Es\r
265 push ecx\r
266 mov ecx, Fs\r
267 push ecx\r
268 mov ecx, Gs\r
269 push ecx\r
270\r
271 ;; EIP\r
272 mov ecx, [ebp + 4 * 3] ; EIP\r
273 push ecx\r
274\r
275 ;; UINT32 Gdtr[2], Idtr[2];\r
276 sub esp, 8\r
277 sidt fword ptr [esp]\r
278 sub esp, 8\r
279 sgdt fword ptr [esp]\r
280\r
281 ;; UINT32 Ldtr, Tr;\r
282 xor eax, eax\r
283 str ax\r
284 push eax\r
285 sldt ax\r
286 push eax\r
287\r
288 ;; EFlags\r
289 mov ecx, [ebp + 4 * 5]\r
290 push ecx\r
291\r
292 ;; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;\r
293 mov eax, dr7\r
294 push eax\r
295\r
296 ;; clear Dr7 while executing debugger itself\r
297 xor eax, eax\r
b422b62c 298 mov dr7, eax\r
18b144ea 299\r
300 ;; Dr6\r
301 mov eax, dr6\r
302 push eax\r
303\r
304 ;; insure all status bits in dr6 are clear...\r
305 xor eax, eax\r
306 mov dr6, eax\r
307\r
308 mov eax, dr3\r
309 push eax\r
310 mov eax, dr2\r
311 push eax\r
312 mov eax, dr1\r
313 push eax\r
314 mov eax, dr0\r
315 push eax\r
316\r
d9044ec5
RN		 317 ;; Clear Direction Flag\r
318 cld\r
319\r
18b144ea 320 ;; FX_SAVE_STATE_IA32 FxSaveState;\r
d9044ec5
RN		 321 sub esp, 512\r
322 mov edi, esp\r
323 ;; Clear the buffer\r
324 xor eax, eax\r
325 mov ecx, 128 ;= 512 / 4\r
326 rep stosd\r
327 mov edi, esp\r
5f72e68c
MK		 328\r
329 test edx, BIT24 ; Test for FXSAVE/FXRESTOR support.\r
330 ; edx still contains result from CPUID above\r
331 jz @F\r
18b144ea 332 db 0fh, 0aeh, 00000111y ;fxsave [edi]\r
5f72e68c 333@@: \r
18b144ea 334\r
d9044ec5 335 ;; save the exception data\r
93c0bdec 336 push dword ptr [ebp + 8]\r
337\r
18b144ea 338 ; call the C interrupt process function\r
339 push esp ; Structure\r
340 push ebx ; vector\r
341 call InterruptProcess\r
342 add esp, 8\r
343\r
93c0bdec 344 ; skip the exception data\r
345 add esp, 4\r
346\r
18b144ea 347 ;; FX_SAVE_STATE_IA32 FxSaveState;\r
d9044ec5 348 mov esi, esp\r
5f72e68c
MK		 349 mov eax, 1\r
350 cpuid ; use CPUID to determine if FXSAVE/FXRESTOR are supported\r
351 test edx, BIT24 ; Test for FXSAVE/FXRESTOR support\r
352 jz @F\r
18b144ea 353 db 0fh, 0aeh, 00001110y ; fxrstor [esi]\r
5f72e68c 354@@: \r
18b144ea 355 add esp, 512\r
356\r
357 ;; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;\r
358 pop eax\r
359 mov dr0, eax\r
360 pop eax\r
361 mov dr1, eax\r
362 pop eax\r
363 mov dr2, eax\r
364 pop eax\r
365 mov dr3, eax\r
366 ;; skip restore of dr6. We cleared dr6 during the context save.\r
367 add esp, 4\r
368 pop eax\r
369 mov dr7, eax\r
370\r
371 ;; set EFlags\r
372 pop dword ptr [ebp + 4 * 5] ; set EFLAGS in stack\r
373\r
374 ;; UINT32 Ldtr, Tr;\r
375 ;; UINT32 Gdtr[2], Idtr[2];\r
376 ;; Best not let anyone mess with these particular registers...\r
377 add esp, 24\r
378\r
379 ;; UINT32 Eip;\r
380 pop dword ptr [ebp + 4 * 3] ; set EIP in stack\r
381\r
382 ;; UINT32 Gs, Fs, Es, Ds, Cs, Ss;\r
383 ;; NOTE - modified segment registers could hang the debugger... We\r
384 ;; could attempt to insulate ourselves against this possibility,\r
385 ;; but that poses risks as well.\r
386 ;;\r
387 pop gs\r
388 pop fs\r
389 pop es\r
390 pop ds\r
391 pop dword ptr [ebp + 4 * 4] ; set CS in stack\r
392 pop ss\r
393\r
394 ;; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;\r
395 pop eax\r
396 mov cr0, eax\r
397 add esp, 4 ; skip for Cr1\r
398 pop eax\r
399 mov cr2, eax\r
400 pop eax\r
401 mov cr3, eax\r
402 pop eax\r
403 mov cr4, eax\r
404\r
405 ;; restore general register\r
406 pop edi\r
407 pop esi\r
408 pop dword ptr [ebp] ; save updated ebp\r
409 pop dword ptr [ebp + 4] ; save updated esp\r
410 pop edx\r
411 pop ecx\r
412 pop ebx\r
413 pop eax\r
414\r
415 mov esp, ebp\r
416 pop ebp ; restore ebp maybe updated\r
417 pop esp ; restore esp maybe updated\r
418 sub esp, 4 * 3 ; restore interupt pushced stack\r
419\r
420 iretd\r
421\r
422END\r
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