VirtualBox

source: vbox/trunk/src/VBox/Disassembler/testcase/tstDisasm-2.cpp@ 58514

Last change on this file since 58514 was 57358, checked in by vboxsync, 9 years ago

*: scm cleanup run.

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1/* $Id: tstDisasm-2.cpp 57358 2015-08-14 15:16:38Z vboxsync $ */
2/** @file
3 * Testcase - Generic Disassembler Tool.
4 */
5
6/*
7 * Copyright (C) 2008-2015 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18
19/*********************************************************************************************************************************
20* Header Files *
21*********************************************************************************************************************************/
22#include <VBox/dis.h>
23#include <VBox/err.h>
24#include <iprt/alloc.h>
25#include <iprt/assert.h>
26#include <iprt/initterm.h>
27#include <iprt/getopt.h>
28#include <iprt/file.h>
29#include <iprt/path.h>
30#include <iprt/stream.h>
31#include <iprt/string.h>
32#include <iprt/ctype.h>
33
34
35/*********************************************************************************************************************************
36* Structures and Typedefs *
37*********************************************************************************************************************************/
38typedef enum { kAsmStyle_Default, kAsmStyle_yasm, kAsmStyle_masm, kAsmStyle_gas, kAsmStyle_invalid } ASMSTYLE;
39typedef enum { kUndefOp_Fail, kUndefOp_All, kUndefOp_DefineByte, kUndefOp_End } UNDEFOPHANDLING;
40
41typedef struct MYDISSTATE
42{
43 DISSTATE Dis;
44 uint64_t uAddress; /**< The current instruction address. */
45 uint8_t *pbInstr; /**< The current instruction (pointer). */
46 uint32_t cbInstr; /**< The size of the current instruction. */
47 bool fUndefOp; /**< Whether the current instruction is really an undefined opcode.*/
48 UNDEFOPHANDLING enmUndefOp; /**< How to treat undefined opcodes. */
49 int rc; /**< Set if we hit EOF. */
50 size_t cbLeft; /**< The number of bytes left. (read) */
51 uint8_t *pbNext; /**< The next byte. (read) */
52 uint64_t uNextAddr; /**< The address of the next byte. (read) */
53 char szLine[256]; /**< The disassembler text output. */
54} MYDISSTATE;
55typedef MYDISSTATE *PMYDISSTATE;
56
57
58
59/**
60 * Default style.
61 *
62 * @param pState The disassembler state.
63 */
64static void MyDisasDefaultFormatter(PMYDISSTATE pState)
65{
66 RTPrintf("%s", pState->szLine);
67}
68
69
70/**
71 * Yasm style.
72 *
73 * @param pState The disassembler state.
74 */
75static void MyDisasYasmFormatter(PMYDISSTATE pState)
76{
77 char szTmp[256];
78#if 0
79 /* a very quick hack. */
80 strcpy(szTmp, RTStrStripL(strchr(pState->szLine, ':') + 1));
81
82 char *psz = strrchr(szTmp, '[');
83 *psz = '\0';
84 RTStrStripR(szTmp);
85
86 psz = strstr(szTmp, " ptr ");
87 if (psz)
88 memset(psz, ' ', 5);
89
90 char *pszEnd = strchr(szTmp, '\0');
91 while (pszEnd - &szTmp[0] < 71)
92 *pszEnd++ = ' ';
93 *pszEnd = '\0';
94
95#else
96 size_t cch = DISFormatYasmEx(&pState->Dis, szTmp, sizeof(szTmp),
97 DIS_FMT_FLAGS_STRICT | DIS_FMT_FLAGS_ADDR_RIGHT | DIS_FMT_FLAGS_ADDR_COMMENT
98 | DIS_FMT_FLAGS_BYTES_RIGHT | DIS_FMT_FLAGS_BYTES_COMMENT | DIS_FMT_FLAGS_BYTES_SPACED,
99 NULL, NULL);
100 Assert(cch < sizeof(szTmp));
101 while (cch < 71)
102 szTmp[cch++] = ' ';
103 szTmp[cch] = '\0';
104#endif
105
106 RTPrintf(" %s ; %s", szTmp, pState->szLine);
107}
108
109
110/**
111 * Masm style.
112 *
113 * @param pState The disassembler state.
114 */
115static void MyDisasMasmFormatter(PMYDISSTATE pState)
116{
117 RTPrintf("masm not implemented: %s", pState->szLine);
118}
119
120
121/**
122 * This is a temporary workaround for catching a few illegal opcodes
123 * that the disassembler is currently letting thru, just enough to make
124 * the assemblers happy.
125 *
126 * We're too close to a release to dare mess with these things now as
127 * they may consequences for performance and let alone introduce bugs.
128 *
129 * @returns true if it's valid. false if it isn't.
130 *
131 * @param pDis The disassembler output.
132 */
133static bool MyDisasIsValidInstruction(DISSTATE const *pDis)
134{
135 switch (pDis->pCurInstr->uOpcode)
136 {
137 /* These doesn't take memory operands. */
138 case OP_MOV_CR:
139 case OP_MOV_DR:
140 case OP_MOV_TR:
141 if (pDis->ModRM.Bits.Mod != 3)
142 return false;
143 break;
144
145 /* The 0x8f /0 variant of this instruction doesn't get its /r value verified. */
146 case OP_POP:
147 if ( pDis->bOpCode == 0x8f
148 && pDis->ModRM.Bits.Reg != 0)
149 return false;
150 break;
151
152 /* The 0xc6 /0 and 0xc7 /0 variants of this instruction don't get their /r values verified. */
153 case OP_MOV:
154 if ( ( pDis->bOpCode == 0xc6
155 || pDis->bOpCode == 0xc7)
156 && pDis->ModRM.Bits.Reg != 0)
157 return false;
158 break;
159
160 default:
161 break;
162 }
163
164 return true;
165}
166
167
168/**
169 * @interface_method_impl{FNDISREADBYTES}
170 */
171static DECLCALLBACK(int) MyDisasInstrRead(PDISSTATE pDis, uint8_t offInstr, uint8_t cbMinRead, uint8_t cbMaxRead)
172{
173 PMYDISSTATE pState = (PMYDISSTATE)pDis;
174 RTUINTPTR uSrcAddr = pState->Dis.uInstrAddr + offInstr;
175 if (RT_LIKELY( pState->uNextAddr == uSrcAddr
176 && pState->cbLeft >= cbMinRead))
177 {
178 /*
179 * Straight forward reading.
180 */
181 //size_t cbToRead = cbMaxRead;
182 size_t cbToRead = cbMinRead;
183 memcpy(&pState->Dis.abInstr[offInstr], pState->pbNext, cbToRead);
184 pState->Dis.cbCachedInstr = offInstr + cbToRead;
185 pState->pbNext += cbToRead;
186 pState->cbLeft -= cbToRead;
187 pState->uNextAddr += cbToRead;
188 return VINF_SUCCESS;
189 }
190
191 if (pState->uNextAddr == uSrcAddr)
192 {
193 /*
194 * Reading too much.
195 */
196 if (pState->cbLeft > 0)
197 {
198 memcpy(&pState->Dis.abInstr[offInstr], pState->pbNext, pState->cbLeft);
199 offInstr += (uint8_t)pState->cbLeft;
200 cbMinRead -= (uint8_t)pState->cbLeft;
201 pState->pbNext += pState->cbLeft;
202 pState->uNextAddr += pState->cbLeft;
203 pState->cbLeft = 0;
204 }
205 memset(&pState->Dis.abInstr[offInstr], 0xcc, cbMinRead);
206 pState->rc = VERR_EOF;
207 }
208 else
209 {
210 /*
211 * Non-sequential read, that's an error.
212 */
213 RTStrmPrintf(g_pStdErr, "Reading before current instruction!\n");
214 memset(&pState->Dis.abInstr[offInstr], 0x90, cbMinRead);
215 pState->rc = VERR_INTERNAL_ERROR;
216 }
217 pState->Dis.cbCachedInstr = offInstr + cbMinRead;
218 return pState->rc;
219}
220
221
222/**
223 * Disassembles a block of memory.
224 *
225 * @returns VBox status code.
226 * @param argv0 Program name (for errors and warnings).
227 * @param enmCpuMode The cpu mode to disassemble in.
228 * @param uAddress The address we're starting to disassemble at.
229 * @param uHighlightAddr The address of the instruction that should be
230 * highlighted. Pass UINT64_MAX to keep quiet.
231 * @param pbFile Where to start disassemble.
232 * @param cbFile How much to disassemble.
233 * @param enmStyle The assembly output style.
234 * @param fListing Whether to print in a listing like mode.
235 * @param enmUndefOp How to deal with undefined opcodes.
236 */
237static int MyDisasmBlock(const char *argv0, DISCPUMODE enmCpuMode, uint64_t uAddress,
238 uint64_t uHighlightAddr, uint8_t *pbFile, size_t cbFile,
239 ASMSTYLE enmStyle, bool fListing, UNDEFOPHANDLING enmUndefOp)
240{
241 /*
242 * Initialize the CPU context.
243 */
244 MYDISSTATE State;
245 State.uAddress = uAddress;
246 State.pbInstr = pbFile;
247 State.cbInstr = 0;
248 State.enmUndefOp = enmUndefOp;
249 State.rc = VINF_SUCCESS;
250 State.cbLeft = cbFile;
251 State.pbNext = pbFile;
252 State.uNextAddr = uAddress;
253
254 void (*pfnFormatter)(PMYDISSTATE pState);
255 switch (enmStyle)
256 {
257 case kAsmStyle_Default:
258 pfnFormatter = MyDisasDefaultFormatter;
259 break;
260
261 case kAsmStyle_yasm:
262 RTPrintf(" BITS %d\n", enmCpuMode == DISCPUMODE_16BIT ? 16 : enmCpuMode == DISCPUMODE_32BIT ? 32 : 64);
263 pfnFormatter = MyDisasYasmFormatter;
264 break;
265
266 case kAsmStyle_masm:
267 pfnFormatter = MyDisasMasmFormatter;
268 break;
269
270 default:
271 AssertFailedReturn(VERR_INTERNAL_ERROR);
272 }
273
274 /*
275 * The loop.
276 */
277 int rcRet = VINF_SUCCESS;
278 while (State.cbLeft > 0)
279 {
280 /*
281 * Disassemble it.
282 */
283 State.cbInstr = 0;
284 State.cbLeft += State.pbNext - State.pbInstr;
285 State.uNextAddr = State.uAddress;
286 State.pbNext = State.pbInstr;
287
288 int rc = DISInstrToStrWithReader(State.uAddress, enmCpuMode, MyDisasInstrRead, &State,
289 &State.Dis, &State.cbInstr, State.szLine, sizeof(State.szLine));
290 if ( RT_SUCCESS(rc)
291 || ( ( rc == VERR_DIS_INVALID_OPCODE
292 || rc == VERR_DIS_GEN_FAILURE)
293 && State.enmUndefOp == kUndefOp_DefineByte))
294 {
295 State.fUndefOp = rc == VERR_DIS_INVALID_OPCODE
296 || rc == VERR_DIS_GEN_FAILURE
297 || State.Dis.pCurInstr->uOpcode == OP_INVALID
298 || State.Dis.pCurInstr->uOpcode == OP_ILLUD2
299 || ( State.enmUndefOp == kUndefOp_DefineByte
300 && !MyDisasIsValidInstruction(&State.Dis));
301 if (State.fUndefOp && State.enmUndefOp == kUndefOp_DefineByte)
302 {
303 if (!State.cbInstr)
304 {
305 State.Dis.abInstr[0] = 0;
306 State.Dis.pfnReadBytes(&State.Dis, 0, 1, 1);
307 State.cbInstr = 1;
308 }
309 RTPrintf(" db");
310 for (unsigned off = 0; off < State.cbInstr; off++)
311 RTPrintf(off ? ", %03xh" : " %03xh", State.Dis.abInstr[off]);
312 RTPrintf(" ; %s\n", State.szLine);
313 }
314 else if (!State.fUndefOp && State.enmUndefOp == kUndefOp_All)
315 {
316 RTPrintf("%s: error at %#RX64: unexpected valid instruction (op=%d)\n", argv0, State.uAddress, State.Dis.pCurInstr->uOpcode);
317 pfnFormatter(&State);
318 rcRet = VERR_GENERAL_FAILURE;
319 }
320 else if (State.fUndefOp && State.enmUndefOp == kUndefOp_Fail)
321 {
322 RTPrintf("%s: error at %#RX64: undefined opcode (op=%d)\n", argv0, State.uAddress, State.Dis.pCurInstr->uOpcode);
323 pfnFormatter(&State);
324 rcRet = VERR_GENERAL_FAILURE;
325 }
326 else
327 {
328 /* Use db for odd encodings that we can't make the assembler use. */
329 if ( State.enmUndefOp == kUndefOp_DefineByte
330 && DISFormatYasmIsOddEncoding(&State.Dis))
331 {
332 RTPrintf(" db");
333 for (unsigned off = 0; off < State.cbInstr; off++)
334 RTPrintf(off ? ", %03xh" : " %03xh", State.Dis.abInstr[off]);
335 RTPrintf(" ; ");
336 }
337
338 pfnFormatter(&State);
339 }
340 }
341 else
342 {
343 State.cbInstr = State.pbNext - State.pbInstr;
344 if (!State.cbLeft)
345 RTPrintf("%s: error at %#RX64: read beyond the end (%Rrc)\n", argv0, State.uAddress, rc);
346 else if (State.cbInstr)
347 RTPrintf("%s: error at %#RX64: %Rrc cbInstr=%d\n", argv0, State.uAddress, rc, State.cbInstr);
348 else
349 {
350 RTPrintf("%s: error at %#RX64: %Rrc cbInstr=%d!\n", argv0, State.uAddress, rc, State.cbInstr);
351 if (rcRet == VINF_SUCCESS)
352 rcRet = rc;
353 break;
354 }
355 }
356
357 /* Highlight this instruction? */
358 if (uHighlightAddr - State.uAddress < State.cbInstr)
359 RTPrintf("; ^^^^^^^^^^^^^^^^^^^^^\n");
360
361 /* Check that the size-only mode returns the smae size on success. */
362 if (RT_SUCCESS(rc))
363 {
364 uint32_t cbInstrOnly = 32;
365 uint8_t abInstr[sizeof(State.Dis.abInstr)];
366 memcpy(abInstr, State.Dis.abInstr, sizeof(State.Dis.abInstr));
367 int rcOnly = DISInstrWithPrefetchedBytes(State.uAddress, enmCpuMode, 0 /*fFilter - none */,
368 abInstr, State.Dis.cbCachedInstr, MyDisasInstrRead, &State,
369 &State.Dis, &cbInstrOnly);
370 if ( rcOnly != rc
371 || cbInstrOnly != State.cbInstr)
372 {
373 RTPrintf("; Instruction size only check failed rc=%Rrc cbInstrOnly=%#x exepcted %Rrc and %#x\n",
374 rcOnly, cbInstrOnly, rc, State.cbInstr);
375 rcRet = VERR_GENERAL_FAILURE;
376 break;
377 }
378 }
379
380 /* next */
381 State.uAddress += State.cbInstr;
382 State.pbInstr += State.cbInstr;
383 }
384
385 return rcRet;
386}
387
388/**
389 * Converts a hex char to a number.
390 *
391 * @returns 0..15 on success, -1 on failure.
392 * @param ch The character.
393 */
394static int HexDigitToNum(char ch)
395{
396 switch (ch)
397 {
398 case '0': return 0;
399 case '1': return 1;
400 case '2': return 2;
401 case '3': return 3;
402 case '4': return 4;
403 case '5': return 5;
404 case '6': return 6;
405 case '7': return 7;
406 case '8': return 8;
407 case '9': return 9;
408 case 'A':
409 case 'a': return 0xa;
410 case 'B':
411 case 'b': return 0xb;
412 case 'C':
413 case 'c': return 0xc;
414 case 'D':
415 case 'd': return 0xd;
416 case 'E':
417 case 'e': return 0xe;
418 case 'F':
419 case 'f': return 0xf;
420 default:
421 RTPrintf("error: Invalid hex digit '%c'\n", ch);
422 return -1;
423 }
424}
425
426/**
427 * Prints usage info.
428 *
429 * @returns 1.
430 * @param argv0 The program name.
431 */
432static int Usage(const char *argv0)
433{
434 RTStrmPrintf(g_pStdErr,
435"usage: %s [options] <file1> [file2..fileN]\n"
436" or: %s [options] <-x|--hex-bytes> <hex byte> [more hex..]\n"
437" or: %s <--help|-h>\n"
438"\n"
439"Options:\n"
440" --address|-a <address>\n"
441" The base address. Default: 0\n"
442" --max-bytes|-b <bytes>\n"
443" The maximum number of bytes to disassemble. Default: 1GB\n"
444" --cpumode|-c <16|32|64>\n"
445" The cpu mode. Default: 32\n"
446" --listing|-l, --no-listing|-L\n"
447" Enables or disables listing mode. Default: --no-listing\n"
448" --offset|-o <offset>\n"
449" The file offset at which to start disassembling. Default: 0\n"
450" --style|-s <default|yasm|masm>\n"
451" The assembly output style. Default: default\n"
452" --undef-op|-u <fail|all|db>\n"
453" How to treat undefined opcodes. Default: fail\n"
454 , argv0, argv0, argv0);
455 return 1;
456}
457
458
459int main(int argc, char **argv)
460{
461 RTR3InitExe(argc, &argv, 0);
462 const char * const argv0 = RTPathFilename(argv[0]);
463
464 /* options */
465 uint64_t uAddress = 0;
466 uint64_t uHighlightAddr = UINT64_MAX;
467 ASMSTYLE enmStyle = kAsmStyle_Default;
468 UNDEFOPHANDLING enmUndefOp = kUndefOp_Fail;
469 bool fListing = true;
470 DISCPUMODE enmCpuMode = DISCPUMODE_32BIT;
471 RTFOFF off = 0;
472 RTFOFF cbMax = _1G;
473 bool fHexBytes = false;
474
475 /*
476 * Parse arguments.
477 */
478 static const RTGETOPTDEF g_aOptions[] =
479 {
480 { "--address", 'a', RTGETOPT_REQ_UINT64 },
481 { "--cpumode", 'c', RTGETOPT_REQ_UINT32 },
482 { "--bytes", 'b', RTGETOPT_REQ_INT64 },
483 { "--listing", 'l', RTGETOPT_REQ_NOTHING },
484 { "--no-listing", 'L', RTGETOPT_REQ_NOTHING },
485 { "--offset", 'o', RTGETOPT_REQ_INT64 },
486 { "--style", 's', RTGETOPT_REQ_STRING },
487 { "--undef-op", 'u', RTGETOPT_REQ_STRING },
488 { "--hex-bytes", 'x', RTGETOPT_REQ_NOTHING },
489 };
490
491 int ch;
492 RTGETOPTUNION ValueUnion;
493 RTGETOPTSTATE GetState;
494 RTGetOptInit(&GetState, argc, argv, g_aOptions, RT_ELEMENTS(g_aOptions), 1, RTGETOPTINIT_FLAGS_OPTS_FIRST);
495 while ( (ch = RTGetOpt(&GetState, &ValueUnion))
496 && ch != VINF_GETOPT_NOT_OPTION)
497 {
498 switch (ch)
499 {
500 case 'a':
501 uAddress = ValueUnion.u64;
502 break;
503
504 case 'b':
505 cbMax = ValueUnion.i64;
506 break;
507
508 case 'c':
509 if (ValueUnion.u32 == 16)
510 enmCpuMode = DISCPUMODE_16BIT;
511 else if (ValueUnion.u32 == 32)
512 enmCpuMode = DISCPUMODE_32BIT;
513 else if (ValueUnion.u32 == 64)
514 enmCpuMode = DISCPUMODE_64BIT;
515 else
516 {
517 RTStrmPrintf(g_pStdErr, "%s: Invalid CPU mode value %RU32\n", argv0, ValueUnion.u32);
518 return 1;
519 }
520 break;
521
522 case 'h':
523 return Usage(argv0);
524
525 case 'l':
526 fListing = true;
527 break;
528
529 case 'L':
530 fListing = false;
531 break;
532
533 case 'o':
534 off = ValueUnion.i64;
535 break;
536
537 case 's':
538 if (!strcmp(ValueUnion.psz, "default"))
539 enmStyle = kAsmStyle_Default;
540 else if (!strcmp(ValueUnion.psz, "yasm"))
541 enmStyle = kAsmStyle_yasm;
542 else if (!strcmp(ValueUnion.psz, "masm"))
543 {
544 enmStyle = kAsmStyle_masm;
545 RTStrmPrintf(g_pStdErr, "%s: masm style isn't implemented yet\n", argv0);
546 return 1;
547 }
548 else
549 {
550 RTStrmPrintf(g_pStdErr, "%s: unknown assembly style: %s\n", argv0, ValueUnion.psz);
551 return 1;
552 }
553 break;
554
555 case 'u':
556 if (!strcmp(ValueUnion.psz, "fail"))
557 enmUndefOp = kUndefOp_Fail;
558 else if (!strcmp(ValueUnion.psz, "all"))
559 enmUndefOp = kUndefOp_All;
560 else if (!strcmp(ValueUnion.psz, "db"))
561 enmUndefOp = kUndefOp_DefineByte;
562 else
563 {
564 RTStrmPrintf(g_pStdErr, "%s: unknown undefined opcode handling method: %s\n", argv0, ValueUnion.psz);
565 return 1;
566 }
567 break;
568
569 case 'x':
570 fHexBytes = true;
571 break;
572
573 case 'V':
574 RTPrintf("$Revision: 57358 $\n");
575 return 0;
576
577 default:
578 return RTGetOptPrintError(ch, &ValueUnion);
579 }
580 }
581 int iArg = GetState.iNext - 1; /** @todo Not pretty, add RTGetOptInit flag for this. */
582 if (iArg >= argc)
583 return Usage(argv0);
584
585 int rc = VINF_SUCCESS;
586 if (fHexBytes)
587 {
588 /*
589 * Convert the remaining arguments from a hex byte string into
590 * a buffer that we disassemble.
591 */
592 size_t cb = 0;
593 uint8_t *pb = NULL;
594 for ( ; iArg < argc; iArg++)
595 {
596 char ch2;
597 const char *psz = argv[iArg];
598 while (*psz)
599 {
600 /** @todo this stuff belongs in IPRT, same stuff as mac address reading. Could be reused for IPv6 with a different item size.*/
601 /* skip white space, and for the benefit of linux panics '<' and '>'. */
602 while (RT_C_IS_SPACE(ch2 = *psz) || ch2 == '<' || ch2 == '>' || ch2 == ',' || ch2 == ';')
603 {
604 if (ch2 == '<')
605 uHighlightAddr = uAddress + cb;
606 psz++;
607 }
608
609 if (ch2 == '0' && (psz[1] == 'x' || psz[1] == 'X'))
610 {
611 psz += 2;
612 ch2 = *psz;
613 }
614
615 if (!ch2)
616 break;
617
618 /* one digit followed by a space or EOS, or two digits. */
619 int iNum = HexDigitToNum(*psz++);
620 if (iNum == -1)
621 return 1;
622 if (!RT_C_IS_SPACE(ch2 = *psz) && ch2 != '\0' && ch2 != '>' && ch2 != ',' && ch2 != ';')
623 {
624 int iDigit = HexDigitToNum(*psz++);
625 if (iDigit == -1)
626 return 1;
627 iNum = iNum * 16 + iDigit;
628 }
629
630 /* add the byte */
631 if (!(cb % 4 /*64*/))
632 {
633 pb = (uint8_t *)RTMemRealloc(pb, cb + 64);
634 if (!pb)
635 {
636 RTPrintf("%s: error: RTMemRealloc failed\n", argv[0]);
637 return 1;
638 }
639 }
640 pb[cb++] = (uint8_t)iNum;
641 }
642 }
643
644 /*
645 * Disassemble it.
646 */
647 rc = MyDisasmBlock(argv0, enmCpuMode, uAddress, uHighlightAddr, pb, cb, enmStyle, fListing, enmUndefOp);
648 }
649 else
650 {
651 /*
652 * Process the files.
653 */
654 for ( ; iArg < argc; iArg++)
655 {
656 /*
657 * Read the file into memory.
658 */
659 void *pvFile;
660 size_t cbFile;
661 rc = RTFileReadAllEx(argv[iArg], off, cbMax, RTFILE_RDALL_O_DENY_NONE, &pvFile, &cbFile);
662 if (RT_FAILURE(rc))
663 {
664 RTStrmPrintf(g_pStdErr, "%s: %s: %Rrc\n", argv0, argv[iArg], rc);
665 break;
666 }
667
668 /*
669 * Disassemble it.
670 */
671 rc = MyDisasmBlock(argv0, enmCpuMode, uAddress, uHighlightAddr, (uint8_t *)pvFile, cbFile, enmStyle, fListing, enmUndefOp);
672 if (RT_FAILURE(rc))
673 break;
674 }
675 }
676
677 return RT_SUCCESS(rc) ? 0 : 1;
678}
679
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