2 * Debugger memory handling
4 * Copyright 1993 Eric Youngdale
5 * Copyright 1995 Alexandre Julliard
6 * Copyright 2000-2005 Eric Pouech
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.
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.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 #include <Zydis/Zydis.h>
29 #include "wine/debug.h"
31 WINE_DEFAULT_DEBUG_CHANNEL(winedbg
);
33 void* be_cpu_linearize(HANDLE hThread
, const ADDRESS64
* addr
)
35 assert(addr
->Mode
== AddrModeFlat
);
36 return (void*)(DWORD_PTR
)addr
->Offset
;
39 BOOL
be_cpu_build_addr(HANDLE hThread
, const dbg_ctx_t
*ctx
, ADDRESS64
* addr
,
40 unsigned seg
, DWORD64 offset
)
42 addr
->Mode
= AddrModeFlat
;
43 addr
->Segment
= 0; /* don't need segment */
44 addr
->Offset
= offset
;
48 void* memory_to_linear_addr(const ADDRESS64
* addr
)
50 return dbg_curr_process
->be_cpu
->linearize(dbg_curr_thread
->handle
, addr
);
53 BOOL
memory_get_current_pc(ADDRESS64
* addr
)
55 assert(dbg_curr_process
->be_cpu
->get_addr
);
56 return dbg_curr_process
->be_cpu
->get_addr(dbg_curr_thread
->handle
, &dbg_context
,
57 be_cpu_addr_pc
, addr
);
60 BOOL
memory_get_current_stack(ADDRESS64
* addr
)
62 assert(dbg_curr_process
->be_cpu
->get_addr
);
63 return dbg_curr_process
->be_cpu
->get_addr(dbg_curr_thread
->handle
, &dbg_context
,
64 be_cpu_addr_stack
, addr
);
67 static void memory_report_invalid_addr(const void* addr
)
71 address
.Mode
= AddrModeFlat
;
73 address
.Offset
= (ULONG_PTR
)addr
;
74 dbg_printf("*** Invalid address ");
75 print_address(&address
, FALSE
);
79 /***********************************************************************
82 * Read a memory value.
84 BOOL
memory_read_value(const struct dbg_lvalue
* lvalue
, DWORD size
, void* result
)
88 if (lvalue
->in_debuggee
)
90 void* linear
= memory_to_linear_addr(&lvalue
->addr
);
91 if (!(ret
= dbg_read_memory(linear
, result
, size
)))
92 memory_report_invalid_addr(linear
);
96 if (lvalue
->addr
.Offset
)
98 memcpy(result
, (void*)(DWORD_PTR
)lvalue
->addr
.Offset
, size
);
105 /***********************************************************************
108 * Store a value in memory.
110 BOOL
memory_write_value(const struct dbg_lvalue
* lvalue
, DWORD size
, void* value
)
115 if (!types_get_info(&lvalue
->type
, TI_GET_LENGTH
, &os
)) return FALSE
;
118 dbg_printf("Size mismatch in memory_write_value, got %I64u from type while expecting %lu\n",
123 /* FIXME: only works on little endian systems */
124 if (lvalue
->in_debuggee
)
126 void* linear
= memory_to_linear_addr(&lvalue
->addr
);
127 if (!(ret
= dbg_write_memory(linear
, value
, size
)))
128 memory_report_invalid_addr(linear
);
132 memcpy((void*)(DWORD_PTR
)lvalue
->addr
.Offset
, value
, size
);
137 /* transfer a block of memory
138 * the two lvalue:s are expected to be of same size
140 BOOL
memory_transfer_value(const struct dbg_lvalue
* to
, const struct dbg_lvalue
* from
)
142 DWORD64 size_to
, size_from
;
147 if (to
->bitlen
|| from
->bitlen
) return FALSE
;
148 if (!types_get_info(&to
->type
, TI_GET_LENGTH
, &size_to
) ||
149 !types_get_info(&from
->type
, TI_GET_LENGTH
, &size_from
) ||
150 size_from
!= size_to
) return FALSE
;
151 /* optimize debugger to debugger transfer */
152 if (!to
->in_debuggee
&& !from
->in_debuggee
)
154 memcpy(memory_to_linear_addr(&to
->addr
), memory_to_linear_addr(&from
->addr
), size_from
);
157 if (size_to
> sizeof(tmp
))
159 ptr
= malloc(size_from
);
160 if (!ptr
) return FALSE
;
162 ret
= memory_read_value(from
, size_from
, ptr
) &&
163 memory_write_value(to
, size_from
, ptr
);
164 if (size_to
> sizeof(tmp
)) free(ptr
);
168 /***********************************************************************
171 * Implementation of the 'x' command.
173 void memory_examine(const struct dbg_lvalue
*lvalue
, int count
, char format
)
180 types_extract_as_address(lvalue
, &addr
);
181 linear
= memory_to_linear_addr(&addr
);
183 if (format
!= 'i' && count
> 1)
185 print_address(&addr
, FALSE
);
192 if (count
== 1) count
= 256;
193 memory_get_string(dbg_curr_process
, linear
,
194 TRUE
, TRUE
, buffer
, min(count
, sizeof(buffer
)));
195 dbg_printf("%s\n", buffer
);
198 if (count
== 1) count
= 256;
199 memory_get_string(dbg_curr_process
, linear
,
200 TRUE
, FALSE
, buffer
, min(count
, sizeof(buffer
)));
201 dbg_printf("%s\n", buffer
);
204 while (count
-- && memory_disasm_one_insn(&addr
));
210 if (!dbg_read_memory(linear
, &guid
, sizeof(guid
)))
212 memory_report_invalid_addr(linear
);
215 dbg_printf("{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}\n",
216 guid
.Data1
, guid
.Data2
, guid
.Data3
,
217 guid
.Data4
[0], guid
.Data4
[1], guid
.Data4
[2], guid
.Data4
[3],
218 guid
.Data4
[4], guid
.Data4
[5], guid
.Data4
[6], guid
.Data4
[7]);
219 linear
= (char*)linear
+ sizeof(guid
);
220 addr
.Offset
+= sizeof(guid
);
223 print_address(&addr
, FALSE
);
229 #define DO_DUMP2(_t,_l,_f,_vv) { \
231 for (i = 0; i < count; i++) { \
232 if (!dbg_read_memory(linear, &_v, sizeof(_t))) \
233 { memory_report_invalid_addr(linear); break; } \
234 dbg_printf(_f, (_vv)); \
235 addr.Offset += sizeof(_t); \
236 linear = (char*)linear + sizeof(_t); \
237 if ((i % (_l)) == (_l) - 1 && i != count - 1) \
240 print_address(&addr, FALSE); \
246 #define DO_DUMP(_t,_l,_f) DO_DUMP2(_t,_l,_f,_v)
248 case 'x': DO_DUMP(int, 4, " %8.8x"); break;
249 case 'd': DO_DUMP(unsigned int, 4, " %4.4d"); break;
250 case 'w': DO_DUMP(unsigned short, 8, " %04x"); break;
254 DO_DUMP(DWORD
, 4, " %8.8lx");
258 DO_DUMP(DWORD64
, 2, " %16.16I64x");
261 case 'c': DO_DUMP2(char, 32, " %c", (_v
< 0x20) ? ' ' : _v
); break;
262 case 'b': DO_DUMP2(char, 16, " %02x", (_v
) & 0xff); break;
266 BOOL
memory_fetch_integer(const struct dbg_lvalue
* lvalue
, unsigned size
,
267 BOOL is_signed
, dbg_lgint_t
* ret
)
269 /* size must fit in ret and be a power of two */
270 if (size
> sizeof(*ret
) || (size
& (size
- 1))) return FALSE
;
274 struct dbg_lvalue alt_lvalue
= *lvalue
;
277 /* FIXME: this test isn't sufficient, depending on start of bitfield
278 * (ie a 64 bit field can spread across 9 bytes)
280 if (lvalue
->bitlen
> 8 * sizeof(dbg_lgint_t
)) return FALSE
;
281 alt_lvalue
.addr
.Offset
+= lvalue
->bitstart
>> 3;
283 * Bitfield operation. We have to extract the field.
285 if (!memory_read_value(&alt_lvalue
, sizeof(*ret
), ret
)) return FALSE
;
286 mask
= ~(dbg_lguint_t
)0 << lvalue
->bitlen
;
287 *ret
>>= lvalue
->bitstart
& 7;
291 * OK, now we have the correct part of the number.
292 * Check to see whether the basic type is signed or not, and if so,
293 * we need to sign extend the number.
295 if (types_get_info(&lvalue
->type
, TI_GET_BASETYPE
, &bt
) &&
296 (bt
== btInt
|| bt
== btLong
) && (*ret
& (1 << (lvalue
->bitlen
- 1))))
303 /* we are on little endian CPU */
304 memset(ret
, 0, sizeof(*ret
)); /* clear unread bytes */
305 if (!memory_read_value(lvalue
, size
, ret
)) return FALSE
;
307 /* propagate sign information */
308 if (is_signed
&& size
< 8 && (*ret
>> (size
* 8 - 1)) != 0)
310 dbg_lguint_t neg
= -1;
311 *ret
|= neg
<< (size
* 8);
317 BOOL
memory_store_integer(const struct dbg_lvalue
* lvalue
, dbg_lgint_t val
)
320 if (!types_get_info(&lvalue
->type
, TI_GET_LENGTH
, &size
)) return FALSE
;
323 struct dbg_lvalue alt_lvalue
= *lvalue
;
324 dbg_lguint_t mask
, dst
;
326 /* FIXME: this test isn't sufficient, depending on start of bitfield
327 * (ie a 64 bit field can spread across 9 bytes)
329 if (lvalue
->bitlen
> 8 * sizeof(dbg_lgint_t
)) return FALSE
;
330 /* mask is 1 where bitfield is present, 0 outside */
331 mask
= (~(dbg_lguint_t
)0 >> (sizeof(val
) * 8 - lvalue
->bitlen
)) << (lvalue
->bitstart
& 7);
332 alt_lvalue
.addr
.Offset
+= lvalue
->bitstart
>> 3;
333 val
<<= lvalue
->bitstart
& 7;
334 if (!memory_read_value(&alt_lvalue
, (unsigned)size
, &dst
)) return FALSE
;
335 val
= (dst
& ~mask
) | (val
& mask
);
336 return memory_write_value(&alt_lvalue
, (unsigned)size
, &val
);
338 /* this is simple if we're on a little endian CPU */
339 return memory_write_value(lvalue
, (unsigned)size
, &val
);
342 BOOL
memory_fetch_float(const struct dbg_lvalue
* lvalue
, double *ret
)
345 if (!types_get_info(&lvalue
->type
, TI_GET_LENGTH
, &size
)) return FALSE
;
346 /* FIXME: this assumes that debuggee and debugger use the same
347 * representation for reals
349 if (size
> sizeof(*ret
)) return FALSE
;
350 if (!memory_read_value(lvalue
, size
, ret
)) return FALSE
;
352 if (size
== sizeof(float)) *ret
= *(float*)ret
;
353 else if (size
!= sizeof(double)) return FALSE
;
358 BOOL
memory_store_float(const struct dbg_lvalue
* lvalue
, double *ret
)
361 if (!types_get_info(&lvalue
->type
, TI_GET_LENGTH
, &size
)) return FALSE
;
362 /* FIXME: this assumes that debuggee and debugger use the same
363 * representation for reals
365 if (size
> sizeof(*ret
)) return FALSE
;
366 if (size
== sizeof(float))
369 return memory_write_value(lvalue
, size
, &f
);
371 if (size
!= sizeof(double)) return FALSE
;
372 return memory_write_value(lvalue
, size
, ret
);
375 BOOL
memory_get_string(struct dbg_process
* pcs
, void* addr
, BOOL in_debuggee
,
376 BOOL unicode
, char* buffer
, int size
)
382 if (!addr
) return FALSE
;
387 if (!unicode
) ret
= pcs
->process_io
->read(pcs
->handle
, addr
, buffer
, size
, &sz
);
390 buffW
= malloc(size
* sizeof(WCHAR
));
391 ret
= pcs
->process_io
->read(pcs
->handle
, addr
, buffW
, size
* sizeof(WCHAR
), &sz
);
392 WideCharToMultiByte(CP_ACP
, 0, buffW
, sz
/ sizeof(WCHAR
), buffer
, size
,
396 if (size
) buffer
[size
-1] = 0;
401 lstrcpynA(buffer
, addr
, size
);
406 BOOL
memory_get_string_indirect(struct dbg_process
* pcs
, void* addr
, BOOL unicode
, WCHAR
* buffer
, int size
)
413 pcs
->process_io
->read(pcs
->handle
, addr
, &ad
, pcs
->be_cpu
->pointer_size
, &sz
) && sz
== pcs
->be_cpu
->pointer_size
&& ad
)
419 ret
= pcs
->process_io
->read(pcs
->handle
, ad
, buffer
, size
* sizeof(WCHAR
), &sz
) && sz
!= 0;
422 if ((buff
= malloc(size
)))
424 ret
= pcs
->process_io
->read(pcs
->handle
, ad
, buff
, size
, &sz
) && sz
!= 0;
425 MultiByteToWideChar(CP_ACP
, 0, buff
, sz
, buffer
, size
);
430 if (size
) buffer
[size
-1] = 0;
437 * Convert an address offset to hex string. If mode == 32, treat offset as
438 * 32 bits (discard upper 32 bits), if mode == 64 use all 64 bits, if mode == 0
439 * treat as either 32 or 64 bits, depending on whether we're running as
442 char* memory_offset_to_string(char *str
, DWORD64 offset
, unsigned mode
)
444 if (mode
!= 32 && mode
!= 64)
454 sprintf(str
, "0x%08x", (unsigned int) offset
);
456 sprintf(str
, "%#016I64x", offset
);
461 static void dbg_print_sdecimal(dbg_lgint_t sv
)
463 dbg_printf("%I64d", sv
);
466 static void dbg_print_hex(DWORD size
, dbg_lgint_t sv
)
471 /* clear unneeded high bits, esp. sign extension */
472 dbg_printf("%#I64x", sv
& (~(dbg_lguint_t
)0 >> (8 * (sizeof(dbg_lgint_t
) - size
))));
475 static void print_typed_basic(const struct dbg_lvalue
* lvalue
)
481 DWORD tag
, size
, count
, bt
;
482 struct dbg_type type
= lvalue
->type
;
483 struct dbg_type sub_type
;
484 struct dbg_lvalue sub_lvalue
;
486 if (!types_get_real_type(&type
, &tag
)) return;
491 if (!types_get_info(&type
, TI_GET_LENGTH
, &size64
) ||
492 !types_get_info(&type
, TI_GET_BASETYPE
, &bt
))
494 WINE_ERR("Couldn't get information\n");
495 RaiseException(DEBUG_STATUS_INTERNAL_ERROR
, 0, 0, NULL
);
498 size
= (DWORD
)size64
;
503 if (!memory_fetch_integer(lvalue
, size
, TRUE
, &val_int
)) return;
504 dbg_print_hex(size
, val_int
);
508 if (!memory_fetch_integer(lvalue
, size
, FALSE
, &val_int
)) return;
509 dbg_print_hex(size
, val_int
);
512 if (!memory_fetch_float(lvalue
, &val_real
)) return;
513 dbg_printf("%f", val_real
);
516 if (!memory_fetch_integer(lvalue
, size
, TRUE
, &val_int
)) return;
517 if (size
== 1 && isprint((char)val_int
))
518 dbg_printf("'%c'", (char)val_int
);
520 dbg_print_hex(size
, val_int
);
523 if (!memory_fetch_integer(lvalue
, size
, TRUE
, &val_int
)) return;
524 if (size
== 2 && iswprint((WCHAR
)val_int
))
525 dbg_printf("L'%lc'", (WCHAR
)val_int
);
527 dbg_print_hex(size
, val_int
);
530 if (!memory_fetch_integer(lvalue
, size
, TRUE
, &val_int
)) return;
531 dbg_printf("%s", val_int
? "true" : "false");
534 WINE_FIXME("Unsupported basetype %lu\n", bt
);
538 case SymTagPointerType
:
539 if (!types_array_index(lvalue
, 0, &sub_lvalue
))
541 dbg_printf("Internal symbol error: unable to access memory location %p",
542 memory_to_linear_addr(&lvalue
->addr
));
545 val_ptr
= memory_to_linear_addr(&sub_lvalue
.addr
);
546 if (types_get_real_type(&sub_lvalue
.type
, &tag
) && tag
== SymTagBaseType
&&
547 types_get_info(&sub_lvalue
.type
, TI_GET_BASETYPE
, &bt
) &&
548 types_get_info(&sub_lvalue
.type
, TI_GET_LENGTH
, &size64
))
552 if (!val_ptr
) dbg_printf("0x0");
553 else if ((bt
== btChar
&& size64
== 1) || (bt
== btWChar
&& size64
== 2))
555 if (memory_get_string(dbg_curr_process
, val_ptr
, sub_lvalue
.in_debuggee
,
556 bt
== btWChar
, buffer
, sizeof(buffer
)))
557 dbg_printf("%s\"%s\"", bt
== btWChar
? "L" : "", buffer
);
559 dbg_printf("*** invalid address %p ***", val_ptr
);
563 dbg_printf("%p", val_ptr
);
565 case SymTagArrayType
:
567 if (!memory_read_value(lvalue
, sizeof(val_ptr
), &val_ptr
)) return;
568 dbg_printf("%p", val_ptr
);
574 if (!types_get_info(&type
, TI_GET_LENGTH
, &size64
) ||
575 !memory_fetch_integer(lvalue
, size64
, TRUE
, &val_int
)) return;
577 if (types_get_info(&type
, TI_GET_CHILDRENCOUNT
, &count
))
579 char buffer
[sizeof(TI_FINDCHILDREN_PARAMS
) + 256 * sizeof(DWORD
)];
580 TI_FINDCHILDREN_PARAMS
* fcp
= (TI_FINDCHILDREN_PARAMS
*)buffer
;
588 fcp
->Count
= min(count
, 256);
589 if (types_get_info(&type
, TI_FINDCHILDREN
, fcp
))
591 sub_type
.module
= type
.module
;
592 for (i
= 0; i
< min(fcp
->Count
, count
); i
++)
594 sub_type
.id
= fcp
->ChildId
[i
];
595 if (!types_get_info(&sub_type
, TI_GET_VALUE
, &variant
))
597 switch (V_VT(&variant
))
599 case VT_I1
: ok
= (val_int
== V_I1(&variant
)); break;
600 case VT_I2
: ok
= (val_int
== V_I2(&variant
)); break;
601 case VT_I4
: ok
= (val_int
== V_I4(&variant
)); break;
602 case VT_I8
: ok
= (val_int
== V_I8(&variant
)); break;
603 default: WINE_FIXME("Unsupported variant type (%u)\n", V_VT(&variant
));
605 if (ok
&& types_get_info(&sub_type
, TI_GET_SYMNAME
, &ptr
) && ptr
)
607 dbg_printf("%ls", ptr
);
608 HeapFree(GetProcessHeap(), 0, ptr
);
609 count
= 0; /* so that we'll get away from outer loop */
614 count
-= min(count
, 256);
618 if (!ok
) dbg_print_sdecimal(val_int
);
622 WINE_FIXME("Unsupported tag %lu\n", tag
);
627 /***********************************************************************
630 * Implementation of the 'print' command.
632 void print_basic(const struct dbg_lvalue
* lvalue
, char format
)
634 if (lvalue
->type
.id
== dbg_itype_none
)
636 dbg_printf("Unable to evaluate expression\n");
643 dbg_lgint_t res
= types_extract_as_lgint(lvalue
, &size
, NULL
);
648 dbg_print_hex(size
, res
);
652 dbg_print_sdecimal(res
);
656 dbg_printf("%d = '%c'", (char)(res
& 0xff), (char)(res
& 0xff));
660 dbg_printf("%d = '%lc'", (WCHAR
)(res
& 0xFFFF), (WCHAR
)(res
& 0xFFFF));
667 dbg_printf("Format specifier '%c' is meaningless in 'print' command\n", format
);
670 if (lvalue
->type
.id
== dbg_itype_segptr
)
672 dbg_print_sdecimal(types_extract_as_lgint(lvalue
, NULL
, NULL
));
674 else print_typed_basic(lvalue
);
677 void print_bare_address(const ADDRESS64
* addr
)
679 char hexbuf
[MAX_OFFSET_TO_STR_LEN
];
684 dbg_printf("%s", memory_offset_to_string(hexbuf
, addr
->Offset
, 0));
688 dbg_printf("0x%04x:0x%04x", addr
->Segment
, (unsigned) addr
->Offset
);
691 dbg_printf("0x%04x:%s", addr
->Segment
,
692 memory_offset_to_string(hexbuf
, addr
->Offset
, 32));
695 dbg_printf("Unknown mode %x", addr
->Mode
);
700 static void print_address_symbol(const ADDRESS64
* addr
, BOOL with_line
, const char *sep
)
702 char buffer
[sizeof(SYMBOL_INFO
) + 256];
703 SYMBOL_INFO
* si
= (SYMBOL_INFO
*)buffer
;
704 DWORD_PTR lin
= (DWORD_PTR
)memory_to_linear_addr(addr
);
709 si
->SizeOfStruct
= sizeof(*si
);
710 si
->MaxNameLen
= 256;
712 if (SymFromAddr(dbg_curr_process
->handle
, lin
, &disp64
, si
) && disp64
< si
->Size
)
714 dbg_printf("%s %s", sep
, si
->Name
);
715 if (disp64
) dbg_printf("+0x%I64x", disp64
);
719 im
.SizeOfStruct
= sizeof(im
);
720 if (!SymGetModuleInfo(dbg_curr_process
->handle
, lin
, &im
)) return;
721 dbg_printf("%s %s", sep
, im
.ModuleName
);
722 if (lin
> im
.BaseOfImage
)
723 dbg_printf("+0x%Ix", lin
- (DWORD_PTR
)im
.BaseOfImage
);
729 il
.SizeOfStruct
= sizeof(il
);
730 if (SymGetLineFromAddr64(dbg_curr_process
->handle
, lin
, &disp
, &il
))
731 dbg_printf(" [%s:%lu]", il
.FileName
, il
.LineNumber
);
732 if (im
.SizeOfStruct
== 0) /* don't display again module if address is in module+disp form */
734 im
.SizeOfStruct
= sizeof(im
);
735 if (SymGetModuleInfo(dbg_curr_process
->handle
, lin
, &im
))
736 dbg_printf(" in %s", im
.ModuleName
);
741 /***********************************************************************
744 * Print an 16- or 32-bit address, with the nearest symbol if any.
746 void print_address(const ADDRESS64
* addr
, BOOLEAN with_line
)
748 print_bare_address(addr
);
749 print_address_symbol(addr
, with_line
, "");
752 void memory_disasm_one_x86_insn(ADDRESS64
*addr
, int display
)
754 ZydisDisassembledInstruction instr
= { .runtime_address
= addr
->Offset
};
755 ZydisDecoder decoder
;
756 ZydisDecoderContext ctx
;
757 unsigned char buffer
[16];
761 if (!dbg_curr_process
->process_io
->read( dbg_curr_process
->handle
, memory_to_linear_addr(addr
),
762 buffer
, sizeof(buffer
), &len
)) return;
768 ZydisDecoderInit( &decoder
, ZYDIS_MACHINE_MODE_LEGACY_16
, ZYDIS_STACK_WIDTH_16
);
772 ZydisDecoderInit( &decoder
, ZYDIS_MACHINE_MODE_LEGACY_32
, ZYDIS_STACK_WIDTH_32
);
774 ZydisDecoderInit( &decoder
, ZYDIS_MACHINE_MODE_LONG_64
, ZYDIS_STACK_WIDTH_64
);
777 ZydisDecoderDecodeInstruction( &decoder
, &ctx
, buffer
, len
, &instr
.info
);
778 ZydisDecoderDecodeOperands( &decoder
, &ctx
, &instr
.info
,
779 instr
.operands
, instr
.info
.operand_count
);
783 ZydisFormatter formatter
;
784 ZydisFormatterInit( &formatter
, ZYDIS_FORMATTER_STYLE_ATT
);
785 ZydisFormatterSetProperty( &formatter
, ZYDIS_FORMATTER_PROP_HEX_UPPERCASE
, 0 );
786 ZydisFormatterFormatInstruction( &formatter
, &instr
.info
, instr
.operands
,
787 instr
.info
.operand_count_visible
, instr
.text
,
788 sizeof(instr
.text
), instr
.runtime_address
, NULL
);
789 dbg_printf( "%s", instr
.text
);
790 for (i
= 0; i
< instr
.info
.operand_count_visible
; i
++)
792 ADDRESS64 a
= { .Mode
= AddrModeFlat
};
795 if (!ZYAN_SUCCESS(ZydisCalcAbsoluteAddress( &instr
.info
, &instr
.operands
[i
],
796 instr
.runtime_address
, &addr
)))
799 if (instr
.info
.meta
.branch_type
== ZYDIS_BRANCH_TYPE_NEAR
&&
800 instr
.operands
[i
].type
== ZYDIS_OPERAND_TYPE_MEMORY
&&
801 instr
.operands
[i
].mem
.disp
.has_displacement
&&
802 instr
.operands
[i
].mem
.index
== ZYDIS_REGISTER_NONE
&&
803 (instr
.operands
[i
].mem
.base
== ZYDIS_REGISTER_NONE
||
804 instr
.operands
[i
].mem
.base
== ZYDIS_REGISTER_EIP
||
805 instr
.operands
[i
].mem
.base
== ZYDIS_REGISTER_RIP
))
807 unsigned char dest
[8];
808 if (dbg_read_memory( (void *)(ULONG_PTR
)addr
, dest
, ADDRSIZE
))
810 dbg_printf( " -> " );
811 a
.Offset
= ADDRSIZE
== 4 ? *(DWORD
*)dest
: *(DWORD64
*)dest
;
812 print_address( &a
, TRUE
);
817 print_address_symbol( &a
, TRUE
, instr
.info
.operand_count_visible
> 1 ? " ;" : "" );
821 addr
->Offset
+= instr
.info
.length
;
824 BOOL
memory_disasm_one_insn(ADDRESS64
* addr
)
828 print_address(addr
, TRUE
);
830 if (!dbg_read_memory(memory_to_linear_addr(addr
), &ch
, sizeof(ch
)))
832 dbg_printf("-- no code accessible --\n");
835 dbg_curr_process
->be_cpu
->disasm_one_insn(addr
, TRUE
);
840 void memory_disassemble(const struct dbg_lvalue
* xstart
,
841 const struct dbg_lvalue
* xend
, int instruction_count
)
843 static ADDRESS64 last
= {0,0,0};
844 dbg_lgint_t stop
= 0;
847 if (!xstart
&& !xend
)
849 if (!last
.Segment
&& !last
.Offset
) memory_get_current_pc(&last
);
854 types_extract_as_address(xstart
, &last
);
856 stop
= types_extract_as_integer(xend
);
858 for (i
= 0; (instruction_count
== 0 || i
< instruction_count
) &&
859 (stop
== 0 || last
.Offset
<= stop
); i
++)
860 memory_disasm_one_insn(&last
);
863 BOOL
memory_get_register(DWORD regno
, struct dbg_lvalue
* lvalue
, char* buffer
, int len
)
865 const struct dbg_internal_var
* div
;
867 /* negative register values are wine's dbghelp hacks
868 * see dlls/dbghelp/dbghelp_private.h for the details
873 if (buffer
) snprintf(buffer
, len
, "<internal error>");
876 if (buffer
) snprintf(buffer
, len
, "<couldn't compute location>");
879 if (buffer
) snprintf(buffer
, len
, "<is not available>");
882 if (buffer
) snprintf(buffer
, len
, "<couldn't read memory>");
885 if (buffer
) snprintf(buffer
, len
, "<has been optimized away by compiler>");
889 for (div
= dbg_curr_process
->be_cpu
->context_vars
; div
->name
; div
++)
891 if (div
->val
== regno
)
893 if (!stack_get_register_frame(div
, lvalue
))
895 if (buffer
) snprintf(buffer
, len
, "<register %s not accessible in this frame>", div
->name
);
899 if (buffer
) lstrcpynA(buffer
, div
->name
, len
);
903 if (buffer
) snprintf(buffer
, len
, "<unknown register %lu>", regno
);