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rsabase doesn't use any types now, so remove it.
[wine/dcerpc.git] / programs / winedbg / memory.c
bloba9d0f5f3f19e23eb688a7bc3dd4d25a990b8f187
1 /*
2 * Debugger memory handling
3 *
4 * Copyright 1993 Eric Youngdale
5 * Copyright 1995 Alexandre Julliard
6 * Copyright 2000-2004 Eric Pouech
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 #include "config.h"
24 #include "wine/port.h"
25
26 #include <stdlib.h>
27 #include <string.h>
28 #include <stdio.h>
29
30 #include "debugger.h"
31 #include "wine/debug.h"
32
33 WINE_DEFAULT_DEBUG_CHANNEL(winedbg);
34
35 void* be_cpu_linearize(HANDLE hThread, const ADDRESS* addr)
36 {
37 assert(addr->Mode == AddrModeFlat);
38 return (void*)addr->Offset;
39 }
40
41 unsigned be_cpu_build_addr(HANDLE hThread, const CONTEXT* ctx, ADDRESS* addr,
42 unsigned seg, unsigned long offset)
43 {
44 addr->Mode = AddrModeFlat;
45 addr->Segment = 0; /* don't need segment */
46 addr->Offset = offset;
47 return TRUE;
48 }
49
50 void* memory_to_linear_addr(const ADDRESS* addr)
51 {
52 return be_cpu->linearize(dbg_curr_thread->handle, addr);
53 }
54
55 BOOL memory_get_current_pc(ADDRESS* addr)
56 {
57 assert(be_cpu->get_addr);
58 return be_cpu->get_addr(dbg_curr_thread->handle, &dbg_context,
59 be_cpu_addr_pc, addr);
60 }
61
62 BOOL memory_get_current_stack(ADDRESS* addr)
63 {
64 assert(be_cpu->get_addr);
65 return be_cpu->get_addr(dbg_curr_thread->handle, &dbg_context,
66 be_cpu_addr_stack, addr);
67 }
68
69 BOOL memory_get_current_frame(ADDRESS* addr)
70 {
71 assert(be_cpu->get_addr);
72 return be_cpu->get_addr(dbg_curr_thread->handle, &dbg_context,
73 be_cpu_addr_frame, addr);
74 }
75
76 void memory_report_invalid_addr(const void* addr)
77 {
78 ADDRESS address;
79
80 address.Mode = AddrModeFlat;
81 address.Segment = 0;
82 address.Offset = (unsigned long)addr;
83 dbg_printf("*** Invalid address ");
84 print_address(&address, FALSE);
85 dbg_printf("\n");
86 }
87
88 /***********************************************************************
89 * memory_read_value
90 *
91 * Read a memory value.
92 */
93 BOOL memory_read_value(const struct dbg_lvalue* lvalue, DWORD size, void* result)
94 {
95 if (lvalue->cookie == DLV_TARGET)
96 {
97 if (!dbg_read_memory_verbose(memory_to_linear_addr(&lvalue->addr), result, size))
98 return FALSE;
99 }
100 else
101 {
102 if (!lvalue->addr.Offset) return FALSE;
103 memcpy(result, (void*)lvalue->addr.Offset, size);
104 }
105 return TRUE;
106 }
107
108 /***********************************************************************
109 * memory_write_value
110 *
111 * Store a value in memory.
112 */
113 BOOL memory_write_value(const struct dbg_lvalue* lvalue, DWORD size, void* value)
114 {
115 BOOL ret = TRUE;
116 DWORD os;
117 DWORD linear = (DWORD)memory_to_linear_addr(&lvalue->addr);
118
119 os = ~size;
120 types_get_info(&lvalue->type, TI_GET_LENGTH, &os);
121 assert(size == os);
122
123 /* FIXME: only works on little endian systems */
124 if (lvalue->cookie == DLV_TARGET)
125 {
126 ret = dbg_write_memory_verbose((void*)linear, value, size);
127 }
128 else
129 {
130 memcpy((void*)lvalue->addr.Offset, value, size);
131 }
132 return ret;
133 }
134
135 /***********************************************************************
136 * memory_examine
137 *
138 * Implementation of the 'x' command.
139 */
140 void memory_examine(const struct dbg_lvalue *lvalue, int count, char format)
141 {
142 int i;
143 char buffer[256];
144 ADDRESS addr;
145 void *linear;
146
147 if (lvalue->type.id == dbg_itype_none) addr = lvalue->addr;
148 else
149 {
150 addr.Mode = AddrModeFlat;
151 addr.Offset = types_extract_as_integer( lvalue );
152 }
153 linear = memory_to_linear_addr( &addr );
154
155 if (format != 'i' && count > 1)
156 {
157 print_address(&addr, FALSE);
158 dbg_printf(": ");
159 }
160
161 switch (format)
162 {
163 case 'u':
164 if (count == 1) count = 256;
165 memory_get_string(dbg_curr_process->handle, linear,
166 TRUE, TRUE, buffer, min(count, sizeof(buffer)));
167 dbg_printf("%s\n", buffer);
168 return;
169 case 's':
170 if (count == 1) count = 256;
171 memory_get_string(dbg_curr_process->handle, linear,
172 TRUE, FALSE, buffer, min(count, sizeof(buffer)));
173 dbg_printf("%s\n", buffer);
174 return;
175 case 'i':
176 while (count-- && memory_disasm_one_insn(&addr));
177 return;
178 case 'g':
179 while (count--)
180 {
181 GUID guid;
182 if (!dbg_read_memory_verbose(linear, &guid, sizeof(guid))) break;
183 dbg_printf("{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}\n",
184 guid.Data1, guid.Data2, guid.Data3,
185 guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3],
186 guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]);
187 linear = (char*)linear + sizeof(guid);
188 addr.Offset += sizeof(guid);
189 if (count)
190 {
191 print_address(&addr, FALSE);
192 dbg_printf(": ");
193 }
194 }
195 return;
196
197 #define DO_DUMP2(_t,_l,_f,_vv) { \
198 _t _v; \
199 for (i = 0; i < count; i++) { \
200 if (!dbg_read_memory_verbose(linear, &_v, \
201 sizeof(_t))) break; \
202 dbg_printf(_f, (_vv)); \
203 addr.Offset += sizeof(_t); \
204 linear = (char*)linear + sizeof(_t); \
205 if ((i % (_l)) == (_l) - 1 && i != count - 1) \
206 { \
207 dbg_printf("\n"); \
208 print_address(&addr, FALSE); \
209 dbg_printf(": "); \
210 } \
211 } \
212 dbg_printf("\n"); \
213 } \
214 return
215 #define DO_DUMP(_t,_l,_f) DO_DUMP2(_t,_l,_f,_v)
216
217 case 'x': DO_DUMP(int, 4, " %8.8x");
218 case 'd': DO_DUMP(unsigned int, 4, " %10d");
219 case 'w': DO_DUMP(unsigned short, 8, " %04x");
220 case 'c': DO_DUMP2(char, 32, " %c", (_v < 0x20) ? ' ' : _v);
221 case 'b': DO_DUMP2(char, 16, " %02x", (_v) & 0xff);
222 }
223 }
224
225 BOOL memory_get_string(HANDLE hp, void* addr, BOOL in_debuggee, BOOL unicode,
226 char* buffer, int size)
227 {
228 DWORD sz;
229 WCHAR* buffW;
230
231 buffer[0] = 0;
232 if (!addr) return FALSE;
233 if (in_debuggee)
234 {
235 if (!unicode) return ReadProcessMemory(hp, addr, buffer, size, &sz);
236
237 buffW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(WCHAR));
238 ReadProcessMemory(hp, addr, buffW, size * sizeof(WCHAR), &sz);
239 WideCharToMultiByte(CP_ACP, 0, buffW, sz / sizeof(WCHAR), buffer, size,
240 NULL, NULL);
241 HeapFree(GetProcessHeap(), 0, buffW);
242 }
243 else
244 {
245 lstrcpynA(buffer, addr, size);
246 }
247 return TRUE;
248 }
249
250 BOOL memory_get_string_indirect(HANDLE hp, void* addr, BOOL unicode, char* buffer, int size)
251 {
252 void* ad;
253 DWORD sz;
254
255 buffer[0] = 0;
256 if (addr &&
257 ReadProcessMemory(hp, addr, &ad, sizeof(ad), &sz) && sz == sizeof(ad) && ad)
258 {
259 return memory_get_string(hp, ad, TRUE, unicode, buffer, size);
260 }
261 return FALSE;
262 }
263
264 static void print_typed_basic(const struct dbg_lvalue* lvalue)
265 {
266 long long int val_int;
267 void* val_ptr;
268 long double val_real;
269 DWORD tag, size, count, bt;
270 struct dbg_type rtype;
271
272 if (lvalue->type.id == dbg_itype_none ||
273 !types_get_info(&lvalue->type, TI_GET_SYMTAG, &tag))
274 return;
275
276 switch (tag)
277 {
278 case SymTagBaseType:
279 if (!types_get_info(&lvalue->type, TI_GET_LENGTH, &size) ||
280 !types_get_info(&lvalue->type, TI_GET_BASETYPE, &bt))
281 {
282 WINE_ERR("Couldn't get information\n");
283 RaiseException(DEBUG_STATUS_INTERNAL_ERROR, 0, 0, NULL);
284 }
285
286 switch (bt)
287 {
288 case btInt:
289 if (!be_cpu->fetch_integer(lvalue, size, TRUE, &val_int)) return;
290 dbg_printf("%lld", val_int);
291 break;
292 case btUInt:
293 if (!be_cpu->fetch_integer(lvalue, size, FALSE, &val_int)) return;
294 dbg_printf("%llu", val_int);
295 break;
296 case btFloat:
297 if (!be_cpu->fetch_float(lvalue, size, &val_real)) return;
298 dbg_printf("%Lf", val_real);
299 break;
300 case btChar:
301 if (!be_cpu->fetch_integer(lvalue, size, TRUE, &val_int)) return;
302 /* FIXME: should do the same for a Unicode character (size == 2) */
303 if (size == 1 && (val_int < 0x20 || val_int > 0x80))
304 dbg_printf("%d", (int)val_int);
305 else
306 dbg_printf("'%c'", (char)val_int);
307 break;
308 default:
309 WINE_FIXME("Unsupported basetype %lu\n", bt);
310 break;
311 }
312 break;
313 case SymTagPointerType:
314 if (!memory_read_value(lvalue, sizeof(void*), &val_ptr)) return;
315
316 if (!types_get_info(&lvalue->type, TI_GET_TYPE, &rtype.id) ||
317 rtype.id == dbg_itype_none)
318 {
319 dbg_printf("Internal symbol error: unable to access memory location %p", val_ptr);
320 break;
321 }
322 rtype.module = lvalue->type.module;
323 if (types_get_info(&rtype, TI_GET_SYMTAG, &tag) && tag == SymTagBaseType &&
324 types_get_info(&rtype, TI_GET_BASETYPE, &bt) && bt == btChar &&
325 types_get_info(&rtype, TI_GET_LENGTH, &size))
326 {
327 char buffer[1024];
328
329 memory_get_string(dbg_curr_process->handle, val_ptr,
330 lvalue->cookie == DLV_TARGET,
331 size == 2, buffer, sizeof(buffer));
332 dbg_printf("\"%s\"", buffer);
333 }
334 else dbg_printf("%p", val_ptr);
335 break;
336 case SymTagArrayType:
337 case SymTagUDT:
338 assert(lvalue->cookie == DLV_TARGET);
339 if (!memory_read_value(lvalue, sizeof(val_ptr), &val_ptr)) return;
340 dbg_printf("%p", val_ptr);
341 break;
342 case SymTagEnum:
343 {
344 BOOL ok = FALSE;
345
346 assert(lvalue->cookie == DLV_TARGET);
347 /* FIXME: it depends on underlying type for enums
348 * (not supported yet in dbghelp)
349 * Assuming 4 as for an int
350 */
351 if (!be_cpu->fetch_integer(lvalue, 4, TRUE, &val_int)) return;
352
353 if (types_get_info(&lvalue->type, TI_GET_CHILDRENCOUNT, &count))
354 {
355 char buffer[sizeof(TI_FINDCHILDREN_PARAMS) + 256 * sizeof(DWORD)];
356 TI_FINDCHILDREN_PARAMS* fcp = (TI_FINDCHILDREN_PARAMS*)buffer;
357 WCHAR* ptr;
358 char tmp[256];
359 VARIANT variant;
360 int i;
361 struct dbg_type type;
362
363 fcp->Start = 0;
364 while (count)
365 {
366 fcp->Count = min(count, 256);
367 if (types_get_info(&lvalue->type, TI_FINDCHILDREN, fcp))
368 {
369 type.module = lvalue->type.module;
370 for (i = 0; i < min(fcp->Count, count); i++)
371 {
372 type.id = fcp->ChildId[i];
373 if (!types_get_info(&type, TI_GET_VALUE, &variant))
374 continue;
375 switch (variant.n1.n2.vt)
376 {
377 case VT_I4: ok = (val_int == variant.n1.n2.n3.lVal); break;
378 default: WINE_FIXME("Unsupported variant type (%u)\n", variant.n1.n2.vt);
379 }
380 if (ok)
381 {
382 ptr = NULL;
383 types_get_info(&type, TI_GET_SYMNAME, &ptr);
384 if (!ptr) continue;
385 WideCharToMultiByte(CP_ACP, 0, ptr, -1, tmp, sizeof(tmp), NULL, NULL);
386 HeapFree(GetProcessHeap(), 0, ptr);
387 dbg_printf("%s", tmp);
388 count = 0; /* so that we'll get away from outter loop */
389 break;
390 }
391 }
392 }
393 }
394 count -= min(count, 256);
395 fcp->Start += 256;
396 }
397 if (!ok) dbg_printf("%lld", val_int);
398 }
399 break;
400 default:
401 WINE_FIXME("Unsupported tag %lu\n", tag);
402 break;
403 }
404 }
405
406 /***********************************************************************
407 * print_basic
408 *
409 * Implementation of the 'print' command.
410 */
411 void print_basic(const struct dbg_lvalue* lvalue, int count, char format)
412 {
413 long int res;
414
415 if (lvalue->type.id == dbg_itype_none)
416 {
417 dbg_printf("Unable to evaluate expression\n");
418 return;
419 }
420
421 res = types_extract_as_integer(lvalue);
422
423 /* FIXME: this implies i386 byte ordering */
424 switch (format)
425 {
426 case 'x':
427 if (lvalue->addr.Mode != AddrModeFlat)
428 dbg_printf("0x%04lx", res);
429 else
430 dbg_printf("0x%08lx", res);
431 break;
432
433 case 'd':
434 dbg_printf("%ld\n", res);
435 break;
436
437 case 'c':
438 dbg_printf("%d = '%c'", (char)(res & 0xff), (char)(res & 0xff));
439 break;
440
441 case 'u':
442 {
443 WCHAR wch = (WCHAR)(res & 0xFFFF);
444 dbg_printf("%d = '", wch);
445 dbg_outputW(&wch, 1);
446 dbg_printf("'");
447 }
448 break;
449
450 case 'i':
451 case 's':
452 case 'w':
453 case 'b':
454 dbg_printf("Format specifier '%c' is meaningless in 'print' command\n", format);
455 case 0:
456 print_typed_basic(lvalue);
457 break;
458 }
459 }
460
461 void print_bare_address(const ADDRESS* addr)
462 {
463 switch (addr->Mode)
464 {
465 case AddrModeFlat:
466 dbg_printf("0x%08lx", addr->Offset);
467 break;
468 case AddrModeReal:
469 case AddrMode1616:
470 dbg_printf("0x%04x:0x%04lx", addr->Segment, addr->Offset);
471 break;
472 case AddrMode1632:
473 dbg_printf("0x%04x:0x%08lx", addr->Segment, addr->Offset);
474 break;
475 default:
476 dbg_printf("Unknown mode %x\n", addr->Mode);
477 break;
478 }
479 }
480
481 /***********************************************************************
482 * print_address
483 *
484 * Print an 16- or 32-bit address, with the nearest symbol if any.
485 */
486 void print_address(const ADDRESS* addr, BOOLEAN with_line)
487 {
488 char buffer[sizeof(SYMBOL_INFO) + 256];
489 SYMBOL_INFO* si = (SYMBOL_INFO*)buffer;
490 void* lin = memory_to_linear_addr(addr);
491 DWORD64 disp64;
492 DWORD disp;
493
494 print_bare_address(addr);
495
496 si->SizeOfStruct = sizeof(*si);
497 si->MaxNameLen = 256;
498 if (!SymFromAddr(dbg_curr_process->handle, (DWORD_PTR)lin, &disp64, si)) return;
499 dbg_printf(" %s", si->Name);
500 if (disp64) dbg_printf("+0x%lx", (DWORD_PTR)disp64);
501 if (with_line)
502 {
503 IMAGEHLP_LINE il;
504 IMAGEHLP_MODULE im;
505
506 il.SizeOfStruct = sizeof(il);
507 if (SymGetLineFromAddr(dbg_curr_process->handle, (DWORD_PTR)lin, &disp, &il))
508 dbg_printf(" [%s:%lu]", il.FileName, il.LineNumber);
509 im.SizeOfStruct = sizeof(im);
510 if (SymGetModuleInfo(dbg_curr_process->handle, (DWORD_PTR)lin, &im))
511 dbg_printf(" in %s", im.ModuleName);
512 }
513 }
514
515 struct sym_enum
516 {
517 char* tmp;
518 DWORD frame;
519 };
520
521 static BOOL WINAPI sym_enum_cb(SYMBOL_INFO* sym_info, ULONG size, void* user)
522 {
523 struct sym_enum* se = (struct sym_enum*)user;
524 DWORD addr;
525 unsigned val;
526 long offset;
527
528 if ((sym_info->Flags & (SYMFLAG_PARAMETER|SYMFLAG_FRAMEREL)) == (SYMFLAG_PARAMETER|SYMFLAG_FRAMEREL))
529 {
530 struct dbg_type type;
531
532 if (se->tmp[0]) strcat(se->tmp, ", ");
533 addr = se->frame;
534 type.module = sym_info->ModBase;
535 type.id = sym_info->TypeIndex;
536 types_get_info(&type, TI_GET_OFFSET, &offset);
537 addr += offset;
538 dbg_read_memory_verbose((char*)addr, &val, sizeof(val));
539 sprintf(se->tmp + strlen(se->tmp), "%s=0x%x", sym_info->Name, val);
540 }
541 return TRUE;
542 }
543
544 void print_addr_and_args(const ADDRESS* pc, const ADDRESS* frame)
545 {
546 char buffer[sizeof(SYMBOL_INFO) + 256];
547 SYMBOL_INFO* si = (SYMBOL_INFO*)buffer;
548 IMAGEHLP_STACK_FRAME isf;
549 IMAGEHLP_LINE il;
550 IMAGEHLP_MODULE im;
551 DWORD64 disp64;
552
553 print_bare_address(pc);
554
555 isf.InstructionOffset = (DWORD_PTR)memory_to_linear_addr(pc);
556 isf.FrameOffset = (DWORD_PTR)memory_to_linear_addr(frame);
557
558 /* grab module where symbol is. If we don't have a module, we cannot print more */
559 im.SizeOfStruct = sizeof(im);
560 if (!SymGetModuleInfo(dbg_curr_process->handle, isf.InstructionOffset, &im))
561 return;
562
563 si->SizeOfStruct = sizeof(*si);
564 si->MaxNameLen = 256;
565 if (SymFromAddr(dbg_curr_process->handle, isf.InstructionOffset, &disp64, si))
566 {
567 struct sym_enum se;
568 char tmp[1024];
569 DWORD disp;
570
571 dbg_printf(" %s", si->Name);
572 if (disp) dbg_printf("+0x%lx", (DWORD_PTR)disp64);
573
574 SymSetContext(dbg_curr_process->handle, &isf, NULL);
575 se.tmp = tmp;
576 se.frame = isf.FrameOffset;
577 tmp[0] = '\0';
578 SymEnumSymbols(dbg_curr_process->handle, 0, NULL, sym_enum_cb, &se);
579 if (tmp[0]) dbg_printf("(%s)", tmp);
580
581 il.SizeOfStruct = sizeof(il);
582 if (SymGetLineFromAddr(dbg_curr_process->handle, isf.InstructionOffset,
583 &disp, &il))
584 dbg_printf(" [%s:%lu]", il.FileName, il.LineNumber);
585 dbg_printf(" in %s", im.ModuleName);
586 }
587 else dbg_printf(" in %s (+0x%lx)",
588 im.ModuleName, (DWORD_PTR)(isf.InstructionOffset - im.BaseOfImage));
589 }
590
591 BOOL memory_disasm_one_insn(ADDRESS* addr)
592 {
593 char ch;
594
595 print_address(addr, TRUE);
596 dbg_printf(": ");
597 if (!dbg_read_memory(memory_to_linear_addr(addr), &ch, sizeof(ch)))
598 {
599 dbg_printf("-- no code accessible --\n");
600 return FALSE;
601 }
602 be_cpu->disasm_one_insn(addr, TRUE);
603 dbg_printf("\n");
604 return TRUE;
605 }
606
607 void memory_disassemble(const struct dbg_lvalue* xstart,
608 const struct dbg_lvalue* xend, int instruction_count)
609 {
610 static ADDRESS last = {0,0,0};
611 int stop = 0;
612 int i;
613
614 if (!xstart && !xend)
615 {
616 if (!last.Segment && !last.Offset) memory_get_current_pc(&last);
617 }
618 else
619 {
620 if (xstart)
621 {
622 last.Mode = AddrModeFlat;
623 last.Offset = types_extract_as_integer(xstart);
624 }
625 if (xend)
626 stop = types_extract_as_integer(xend);
627 }
628 for (i = 0; (instruction_count == 0 || i < instruction_count) &&
629 (stop == 0 || last.Offset <= stop); i++)
630 memory_disasm_one_insn(&last);
631 }
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