DBGConsole.cpp@ 62481

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1	/* $Id: DBGConsole.cpp 62480 2016-07-22 18:29:41Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console.
4	*/
5
6	/*
7	* Copyright (C) 2006-2016 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	/** @page pg_dbgc DBGC - The Debug Console
20	*
21	* The debugger console is an early attempt to make some interactive
22	* debugging facilities for the VirtualBox VMM. It was initially only
23	* accessible thru a telnet session in debug builds. Later it was hastily built
24	* into the VBoxDbg module with a very simple Qt wrapper around it.
25	*
26	* The current state is that it's by default shipped with all standard
27	* VirtualBox builds. The GUI component is by default accessible in all
28	* non-release builds, while release builds require extra data, environment or
29	* command line options to make it visible.
30	*
31	* Now, even if we ship it with all standard builds we would like it to remain
32	* an optional feature that can be omitted when building VirtualBox. Therefore,
33	* all external code interfacing DBGC need to be enclosed in
34	* \#ifdef VBOX_WITH_DEBUGGER blocks. This is mandatory for components that
35	* register external commands.
36	*
37	*
38	* @section sec_dbgc_op Operation
39	*
40	* The console will process commands in a manner similar to the OS/2 and Windows
41	* kernel debuggers. This means ';' is a command separator and that when
42	* possible we'll use the same command names as these two uses. As an
43	* alternative we intent to provide a set of gdb-like commands as well and let
44	* the user decide which should take precedence.
45	*
46	*
47	* @subsection sec_dbg_op_numbers Numbers
48	*
49	* Numbers are hexadecimal unless specified with a prefix indicating
50	* elsewise. Prefixes:
51	* - '0x' - hexadecimal.
52	* - '0n' - decimal
53	* - '0t' - octal.
54	* - '0y' - binary.
55	*
56	* Some of the prefixes are a bit uncommon, the reason for this that the
57	* typical binary prefix '0b' can also be a hexadecimal value since no prefix or
58	* suffix is required for such values. Ditto for '0n' and '0' for decimal and
59	* octal.
60	*
61	* The '`' can be used in the numeric value to separate parts as the user
62	* wishes. Generally, though the debugger may use it in output as thousand
63	* separator in decimal numbers and 32-bit separator in hex numbers.
64	*
65	* For historical reasons, a 'h' suffix is suffered on hex numbers. Unlike most
66	* assemblers, a leading 0 before a-f is not required with the 'h' suffix.
67	*
68	* The prefix '0i' can be used instead of '0n', as it was the early decimal
69	* prefix employed by DBGC. It's being deprecated and may be removed later.
70	*
71	*
72	* @subsection sec_dbg_op_strings Strings and Symbols
73	*
74	* The debugger will try to guess, convert or promote what the type of an
75	* argument to a command, function or operator based on the input description of
76	* the receiver. If the user wants to make it clear to the debugger that
77	* something is a string, put it inside double quotes. Symbols should use
78	* single quotes, though we're current still a bit flexible on this point.
79	*
80	* If you need to put a quote character inside the quoted text, you escape it by
81	* repating it once: echo "printf(""hello world"");"
82	*
83	*
84	* @subsection sec_dbg_op_address Addressing modes
85	*
86	* - Default is flat. For compatibility '%' also means flat.
87	* - Segmented addresses are specified selector:offset.
88	* - Physical addresses are specified using '%%'.
89	* - The default target for the addressing is the guest context, the '#'
90	* will override this and set it to the host.
91	* Note that several operations won't work on host addresses.
92	*
93	* The '%', '%%' and '#' prefixes is implemented as unary operators, while ':'
94	* is a binary operator. Operator precedence takes care of evaluation order.
95	*
96	*
97	* @subsection sec_dbg_op_c_operators C/C++ Operators
98	*
99	* Most unary and binary arithmetic, comparison, logical and bitwise C/C++
100	* operators are supported by the debugger, with the same precedence rules of
101	* course. There is one notable change made due to the unary '%' and '%%'
102	* operators, and that is that the modulo (remainder) operator is called 'mod'
103	* instead of '%'. This saves a lot of trouble separating argument.
104	*
105	* There are no assignment operators. Instead some simple global variable space
106	* is provided thru the 'set' and 'unset' commands and the unary '$' operator.
107	*
108	*
109	* @subsection sec_dbg_op_registers Registers
110	*
111	* All registers and their sub-fields exposed by the DBGF API are accessible via
112	* the '\@' operator. A few CPU register are accessible directly (as symbols)
113	* without using the '\@' operator. Hypervisor registers are accessible by
114	* prefixing the register name with a dot ('.').
115	*
116	*
117	* @subsection sec_dbg_op_commands Commands
118	*
119	* Commands names are case sensitive. By convention they are lower cased, starts
120	* with a letter but may contain digits and underscores afterwards. Operators
121	* are not allowed in the name (not even part of it), as we would risk
122	* misunderstanding it otherwise.
123	*
124	* Commands returns a status code.
125	*
126	* The '.' prefix indicates the set of external commands. External commands are
127	* command registered by VMM components.
128	*
129	*
130	* @subsection sec_dbg_op_functions Functions
131	*
132	* Functions are similar to commands, but return a variable and can only be used
133	* as part of an expression making up the argument of a command, function,
134	* operator or language statement (if we get around to implement that).
135	*
136	*
137	* @section sec_dbgc_logging Logging
138	*
139	* The idea is to be able to pass thru debug and release logs to the console
140	* if the user so wishes. This feature requires some kind of hook into the
141	* logger instance and while this was sketched it hasn't yet been implemented
142	* (dbgcProcessLog and DBGC::fLog).
143	*
144	* This feature has not materialized and probably never will.
145	*
146	*
147	* @section sec_dbgc_linking Linking and API
148	*
149	* The DBGC code is linked into the VBoxVMM module.
150	*
151	* IMachineDebugger may one day be extended with a DBGC interface so we can work
152	* with DBGC remotely without requiring TCP. Some questions about callbacks
153	* (for output) and security (you may wish to restrict users from debugging a
154	* VM) needs to be answered first though.
155	*/
156
157
158	/*********************************************************************************************************************************
159	* Header Files *
160	*********************************************************************************************************************************/
161	#define LOG_GROUP LOG_GROUP_DBGC
162	#include <VBox/dbg.h>
163	#include <VBox/vmm/cfgm.h>
164	#include <VBox/vmm/dbgf.h>
165	#include <VBox/vmm/vmapi.h> /* VMR3GetVM() */
166	#include <VBox/vmm/hm.h> /* HMR3IsEnabled */
167	#include <VBox/err.h>
168	#include <VBox/log.h>
169
170	#include <iprt/asm.h>
171	#include <iprt/assert.h>
172	#include <iprt/file.h>
173	#include <iprt/mem.h>
174	#include <iprt/path.h>
175	#include <iprt/string.h>
176
177	#include "DBGCInternal.h"
178	#include "DBGPlugIns.h"
179
180
181	/*********************************************************************************************************************************
182	* Internal Functions *
183	*********************************************************************************************************************************/
184	static int dbgcProcessLog(PDBGC pDbgc);
185
186
187	/**
188	* Resolves a symbol (or tries to do so at least).
189	*
190	* @returns 0 on success.
191	* @returns VBox status on failure.
192	* @param pDbgc The debug console instance.
193	* @param pszSymbol The symbol name.
194	* @param enmType The result type. Specifying DBGCVAR_TYPE_GC_FAR may
195	* cause failure, avoid it.
196	* @param pResult Where to store the result.
197	*/
198	int dbgcSymbolGet(PDBGC pDbgc, const char *pszSymbol, DBGCVARTYPE enmType, PDBGCVAR pResult)
199	{
200	int rc;
201
202	/*
203	* Builtin?
204	*/
205	PCDBGCSYM pSymDesc = dbgcLookupRegisterSymbol(pDbgc, pszSymbol);
206	if (pSymDesc)
207	{
208	if (!pSymDesc->pfnGet)
209	return VERR_DBGC_PARSE_WRITEONLY_SYMBOL;
210	return pSymDesc->pfnGet(pSymDesc, &pDbgc->CmdHlp, enmType, pResult);
211	}
212
213	/*
214	* A typical register? (Guest only)
215	*/
216	static const char s_szSixLetterRegisters[] =
217	"rflags;eflags;"
218	;
219	static const char s_szThreeLetterRegisters[] =
220	"eax;rax;" "r10;" "r8d;r8w;r8b;" "cr0;" "dr0;"
221	"ebx;rbx;" "r11;" "r9d;r9w;r8b;" "dr1;"
222	"ecx;rcx;" "r12;" "cr2;" "dr2;"
223	"edx;rdx;" "r13;" "cr3;" "dr3;"
224	"edi;rdi;dil;" "r14;" "cr4;" "dr4;"
225	"esi;rsi;sil;" "r15;" "cr8;"
226	"ebp;rbp;"
227	"esp;rsp;" "dr6;"
228	"rip;eip;" "dr7;"
229	"efl;"
230	;
231	static const char s_szTwoLetterRegisters[] =
232	"ax;al;ah;" "r8;"
233	"bx;bl;bh;" "r9;"
234	"cx;cl;ch;" "cs;"
235	"dx;dl;dh;" "ds;"
236	"di;" "es;"
237	"si;" "fs;"
238	"bp;" "gs;"
239	"sp;" "ss;"
240	"ip;"
241	;
242	const char pszRegSym = pszSymbol == '.' ? pszSymbol + 1 : pszSymbol;
243	size_t const cchRegSym = strlen(pszRegSym);
244	if ( (cchRegSym == 2 && strstr(s_szTwoLetterRegisters, pszRegSym))
245	\|\| (cchRegSym == 3 && strstr(s_szThreeLetterRegisters, pszRegSym))
246	\|\| (cchRegSym == 6 && strstr(s_szSixLetterRegisters, pszRegSym)))
247	{
248	if (!strchr(pszSymbol, ';'))
249	{
250	DBGCVAR Var;
251	DBGCVAR_INIT_SYMBOL(&Var, pszSymbol);
252	rc = dbgcOpRegister(pDbgc, &Var, DBGCVAR_CAT_ANY, pResult);
253	if (RT_SUCCESS(rc))
254	return DBGCCmdHlpConvert(&pDbgc->CmdHlp, pResult, enmType, false /fConvSyms/, pResult);
255	}
256	}
257
258	/*
259	* Ask PDM.
260	*/
261	/** @todo resolve symbols using PDM. */
262
263	/*
264	* Ask the debug info manager.
265	*/
266	RTDBGSYMBOL Symbol;
267	rc = DBGFR3AsSymbolByName(pDbgc->pUVM, pDbgc->hDbgAs, pszSymbol, &Symbol, NULL);
268	if (RT_SUCCESS(rc))
269	{
270	/*
271	* Default return is a flat gc address.
272	*/
273	DBGCVAR_INIT_GC_FLAT(pResult, Symbol.Value);
274	if (Symbol.cb)
275	DBGCVAR_SET_RANGE(pResult, DBGCVAR_RANGE_BYTES, Symbol.cb);
276
277	switch (enmType)
278	{
279	/* nothing to do. */
280	case DBGCVAR_TYPE_GC_FLAT:
281	case DBGCVAR_TYPE_ANY:
282	return VINF_SUCCESS;
283
284	/* impossible at the moment. */
285	case DBGCVAR_TYPE_GC_FAR:
286	return VERR_DBGC_PARSE_CONVERSION_FAILED;
287
288	/* simply make it numeric. */
289	case DBGCVAR_TYPE_NUMBER:
290	pResult->enmType = DBGCVAR_TYPE_NUMBER;
291	pResult->u.u64Number = Symbol.Value;
292	return VINF_SUCCESS;
293
294	/* cast it. */
295	case DBGCVAR_TYPE_GC_PHYS:
296	case DBGCVAR_TYPE_HC_FLAT:
297	case DBGCVAR_TYPE_HC_PHYS:
298	return DBGCCmdHlpConvert(&pDbgc->CmdHlp, pResult, enmType, false /fConvSyms/, pResult);
299
300	default:
301	AssertMsgFailed(("Internal error enmType=%d\n", enmType));
302	return VERR_INVALID_PARAMETER;
303	}
304	}
305
306	return VERR_DBGC_PARSE_NOT_IMPLEMENTED;
307	}
308
309
310	/**
311	* Process all commands currently in the buffer.
312	*
313	* @returns VBox status code. Any error indicates the termination of the console session.
314	* @param pDbgc Debugger console instance data.
315	* @param fNoExecute Indicates that no commands should actually be executed.
316	*/
317	static int dbgcProcessCommands(PDBGC pDbgc, bool fNoExecute)
318	{
319	/** @todo Replace this with a sh/ksh/csh/rexx like toplevel language that
320	* allows doing function, loops, if, cases, and such. */
321	int rc = VINF_SUCCESS;
322	while (pDbgc->cInputLines)
323	{
324	/*
325	* Empty the log buffer if we're hooking the log.
326	*/
327	if (pDbgc->fLog)
328	{
329	rc = dbgcProcessLog(pDbgc);
330	if (RT_FAILURE(rc))
331	break;
332	}
333
334	if (pDbgc->iRead == pDbgc->iWrite)
335	{
336	AssertMsgFailed(("The input buffer is empty while cInputLines=%d!\n", pDbgc->cInputLines));
337	pDbgc->cInputLines = 0;
338	return 0;
339	}
340
341	/*
342	* Copy the command to the parse buffer.
343	*/
344	char ch;
345	char *psz = &pDbgc->achInput[pDbgc->iRead];
346	char *pszTrg = &pDbgc->achScratch[0];
347	while ((pszTrg = ch = psz++) != ';' && ch != '\n' )
348	{
349	if (psz == &pDbgc->achInput[sizeof(pDbgc->achInput)])
350	psz = &pDbgc->achInput[0];
351
352	if (psz == &pDbgc->achInput[pDbgc->iWrite])
353	{
354	AssertMsgFailed(("The buffer contains no commands while cInputLines=%d!\n", pDbgc->cInputLines));
355	pDbgc->cInputLines = 0;
356	return 0;
357	}
358
359	pszTrg++;
360	}
361	*pszTrg = '\0';
362
363	/*
364	* Advance the buffer.
365	*/
366	pDbgc->iRead = psz - &pDbgc->achInput[0];
367	if (ch == '\n')
368	pDbgc->cInputLines--;
369
370	/*
371	* Parse and execute this command.
372	*/
373	pDbgc->pszScratch = pszTrg + 1;
374	pDbgc->iArg = 0;
375	rc = dbgcEvalCommand(pDbgc, &pDbgc->achScratch[0], pszTrg - &pDbgc->achScratch[0] - 1, fNoExecute);
376	if ( rc == VERR_DBGC_QUIT
377	\|\| rc == VWRN_DBGC_CMD_PENDING)
378	break;
379	rc = VINF_SUCCESS; /* ignore other statuses */
380	}
381
382	return rc;
383	}
384
385
386	/**
387	* Handle input buffer overflow.
388	*
389	* Will read any available input looking for a '\n' to reset the buffer on.
390	*
391	* @returns VBox status code.
392	* @param pDbgc Debugger console instance data.
393	*/
394	static int dbgcInputOverflow(PDBGC pDbgc)
395	{
396	/*
397	* Assert overflow status and reset the input buffer.
398	*/
399	if (!pDbgc->fInputOverflow)
400	{
401	pDbgc->fInputOverflow = true;
402	pDbgc->iRead = pDbgc->iWrite = 0;
403	pDbgc->cInputLines = 0;
404	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "Input overflow!!\n");
405	}
406
407	/*
408	* Eat input till no more or there is a '\n'.
409	* When finding a '\n' we'll continue normal processing.
410	*/
411	while (pDbgc->pBack->pfnInput(pDbgc->pBack, 0))
412	{
413	size_t cbRead;
414	int rc = pDbgc->pBack->pfnRead(pDbgc->pBack, &pDbgc->achInput[0], sizeof(pDbgc->achInput) - 1, &cbRead);
415	if (RT_FAILURE(rc))
416	return rc;
417	char psz = (char )memchr(&pDbgc->achInput[0], '\n', cbRead);
418	if (psz)
419	{
420	pDbgc->fInputOverflow = false;
421	pDbgc->iRead = psz - &pDbgc->achInput[0] + 1;
422	pDbgc->iWrite = (unsigned)cbRead;
423	pDbgc->cInputLines = 0;
424	break;
425	}
426	}
427
428	return 0;
429	}
430
431
432	/**
433	* Read input and do some preprocessing.
434	*
435	* @returns VBox status code.
436	* In addition to the iWrite and achInput, cInputLines is maintained.
437	* In case of an input overflow the fInputOverflow flag will be set.
438	* @param pDbgc Debugger console instance data.
439	*/
440	static int dbgcInputRead(PDBGC pDbgc)
441	{
442	/*
443	* We have ready input.
444	* Read it till we don't have any or we have a full input buffer.
445	*/
446	int rc = 0;
447	do
448	{
449	/*
450	* More available buffer space?
451	*/
452	size_t cbLeft;
453	if (pDbgc->iWrite > pDbgc->iRead)
454	cbLeft = sizeof(pDbgc->achInput) - pDbgc->iWrite - (pDbgc->iRead == 0);
455	else
456	cbLeft = pDbgc->iRead - pDbgc->iWrite - 1;
457	if (!cbLeft)
458	{
459	/* overflow? */
460	if (!pDbgc->cInputLines)
461	rc = dbgcInputOverflow(pDbgc);
462	break;
463	}
464
465	/*
466	* Read one char and interpret it.
467	*/
468	char achRead[128];
469	size_t cbRead;
470	rc = pDbgc->pBack->pfnRead(pDbgc->pBack, &achRead[0], RT_MIN(cbLeft, sizeof(achRead)), &cbRead);
471	if (RT_FAILURE(rc))
472	return rc;
473	char *psz = &achRead[0];
474	while (cbRead-- > 0)
475	{
476	char ch = *psz++;
477	switch (ch)
478	{
479	/*
480	* Ignore.
481	*/
482	case '\0':
483	case '\r':
484	case '\a':
485	break;
486
487	/*
488	* Backspace.
489	*/
490	case '\b':
491	Log2(("DBGC: backspace\n"));
492	if (pDbgc->iRead != pDbgc->iWrite)
493	{
494	unsigned iWriteUndo = pDbgc->iWrite;
495	if (pDbgc->iWrite)
496	pDbgc->iWrite--;
497	else
498	pDbgc->iWrite = sizeof(pDbgc->achInput) - 1;
499
500	if (pDbgc->achInput[pDbgc->iWrite] == '\n')
501	pDbgc->iWrite = iWriteUndo;
502	}
503	break;
504
505	/*
506	* Add char to buffer.
507	*/
508	case '\t':
509	case '\n':
510	case ';':
511	switch (ch)
512	{
513	case '\t': ch = ' '; break;
514	case '\n': pDbgc->cInputLines++; break;
515	}
516	default:
517	Log2(("DBGC: ch=%02x\n", (unsigned char)ch));
518	pDbgc->achInput[pDbgc->iWrite] = ch;
519	if (++pDbgc->iWrite >= sizeof(pDbgc->achInput))
520	pDbgc->iWrite = 0;
521	break;
522	}
523	}
524
525	/* Terminate it to make it easier to read in the debugger. */
526	pDbgc->achInput[pDbgc->iWrite] = '\0';
527	} while (pDbgc->pBack->pfnInput(pDbgc->pBack, 0));
528
529	return rc;
530	}
531
532
533	/**
534	* Reads input, parses it and executes commands on '\n'.
535	*
536	* @returns VBox status code.
537	* @param pDbgc Debugger console instance data.
538	* @param fNoExecute Indicates that no commands should actually be executed.
539	*/
540	int dbgcProcessInput(PDBGC pDbgc, bool fNoExecute)
541	{
542	/*
543	* We know there's input ready, so let's read it first.
544	*/
545	int rc = dbgcInputRead(pDbgc);
546	if (RT_FAILURE(rc))
547	return rc;
548
549	/*
550	* Now execute any ready commands.
551	*/
552	if (pDbgc->cInputLines)
553	{
554	pDbgc->pBack->pfnSetReady(pDbgc->pBack, false);
555	pDbgc->fReady = false;
556	rc = dbgcProcessCommands(pDbgc, fNoExecute);
557	if (RT_SUCCESS(rc) && rc != VWRN_DBGC_CMD_PENDING)
558	pDbgc->fReady = true;
559
560	if ( RT_SUCCESS(rc)
561	&& pDbgc->iRead == pDbgc->iWrite
562	&& pDbgc->fReady)
563	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "VBoxDbg> ");
564
565	if ( RT_SUCCESS(rc)
566	&& pDbgc->fReady)
567	pDbgc->pBack->pfnSetReady(pDbgc->pBack, true);
568	}
569	/*
570	* else - we have incomplete line, so leave it in the buffer and
571	* wait for more input.
572	*
573	* Windows telnet client is in "character at a time" mode by
574	* default and putty sends eol as a separate packet that will be
575	* most likely read separately from the command line it
576	* terminates.
577	*/
578
579	return rc;
580	}
581
582
583	/**
584	* Gets the event context identifier string.
585	* @returns Read only string.
586	* @param enmCtx The context.
587	*/
588	static const char *dbgcGetEventCtx(DBGFEVENTCTX enmCtx)
589	{
590	switch (enmCtx)
591	{
592	case DBGFEVENTCTX_RAW: return "raw";
593	case DBGFEVENTCTX_REM: return "rem";
594	case DBGFEVENTCTX_HM: return "hwaccl";
595	case DBGFEVENTCTX_HYPER: return "hyper";
596	case DBGFEVENTCTX_OTHER: return "other";
597
598	case DBGFEVENTCTX_INVALID: return "!Invalid Event Ctx!";
599	default:
600	AssertMsgFailed(("enmCtx=%d\n", enmCtx));
601	return "!Unknown Event Ctx!";
602	}
603	}
604
605
606	/**
607	* Looks up a generic debug event.
608	*
609	* @returns Pointer to DBGCSXEVT structure if found, otherwise NULL.
610	* @param enmType The possibly generic event to find the descriptor for.
611	*/
612	static PCDBGCSXEVT dbgcEventLookup(DBGFEVENTTYPE enmType)
613	{
614	uint32_t i = g_cDbgcSxEvents;
615	while (i-- > 0)
616	if (g_aDbgcSxEvents[i].enmType == enmType)
617	return &g_aDbgcSxEvents[i];
618	return NULL;
619	}
620
621
622	/**
623	* Processes debugger events.
624	*
625	* @returns VBox status code.
626	* @param pDbgc DBGC Instance data.
627	* @param pEvent Pointer to event data.
628	*/
629	static int dbgcProcessEvent(PDBGC pDbgc, PCDBGFEVENT pEvent)
630	{
631	/*
632	* Flush log first.
633	*/
634	if (pDbgc->fLog)
635	{
636	int rc = dbgcProcessLog(pDbgc);
637	if (RT_FAILURE(rc))
638	return rc;
639	}
640
641	/*
642	* Process the event.
643	*/
644	pDbgc->pszScratch = &pDbgc->achInput[0];
645	pDbgc->iArg = 0;
646	bool fPrintPrompt = true;
647	int rc = VINF_SUCCESS;
648	switch (pEvent->enmType)
649	{
650	/*
651	* The first part is events we have initiated with commands.
652	*/
653	case DBGFEVENT_HALT_DONE:
654	{
655	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: VM %p is halted! (%s)\n",
656	pDbgc->pVM, dbgcGetEventCtx(pEvent->enmCtx));
657	pDbgc->fRegCtxGuest = true; /* we're always in guest context when halted. */
658	if (RT_SUCCESS(rc))
659	rc = pDbgc->CmdHlp.pfnExec(&pDbgc->CmdHlp, "r");
660	break;
661	}
662
663
664	/*
665	* The second part is events which can occur at any time.
666	*/
667	case DBGFEVENT_FATAL_ERROR:
668	{
669	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbf event: Fatal error! (%s)\n",
670	dbgcGetEventCtx(pEvent->enmCtx));
671	pDbgc->fRegCtxGuest = false; /* fatal errors are always in hypervisor. */
672	if (RT_SUCCESS(rc))
673	rc = pDbgc->CmdHlp.pfnExec(&pDbgc->CmdHlp, "r");
674	break;
675	}
676
677	case DBGFEVENT_BREAKPOINT:
678	case DBGFEVENT_BREAKPOINT_IO:
679	case DBGFEVENT_BREAKPOINT_MMIO:
680	case DBGFEVENT_BREAKPOINT_HYPER:
681	{
682	bool fRegCtxGuest = pDbgc->fRegCtxGuest;
683	pDbgc->fRegCtxGuest = pEvent->enmType != DBGFEVENT_BREAKPOINT_HYPER;
684
685	rc = dbgcBpExec(pDbgc, pEvent->u.Bp.iBp);
686	switch (rc)
687	{
688	case VERR_DBGC_BP_NOT_FOUND:
689	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: Unknown breakpoint %u! (%s)\n",
690	pEvent->u.Bp.iBp, dbgcGetEventCtx(pEvent->enmCtx));
691	break;
692
693	case VINF_DBGC_BP_NO_COMMAND:
694	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: Breakpoint %u! (%s)\n",
695	pEvent->u.Bp.iBp, dbgcGetEventCtx(pEvent->enmCtx));
696	break;
697
698	case VINF_BUFFER_OVERFLOW:
699	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: Breakpoint %u! Command too long to execute! (%s)\n",
700	pEvent->u.Bp.iBp, dbgcGetEventCtx(pEvent->enmCtx));
701	break;
702
703	default:
704	break;
705	}
706	if (RT_SUCCESS(rc) && DBGFR3IsHalted(pDbgc->pUVM))
707	rc = pDbgc->CmdHlp.pfnExec(&pDbgc->CmdHlp, "r");
708	else
709	pDbgc->fRegCtxGuest = fRegCtxGuest;
710	break;
711	}
712
713	case DBGFEVENT_STEPPED:
714	case DBGFEVENT_STEPPED_HYPER:
715	{
716	pDbgc->fRegCtxGuest = pEvent->enmType == DBGFEVENT_STEPPED;
717
718	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: Single step! (%s)\n", dbgcGetEventCtx(pEvent->enmCtx));
719	if (RT_SUCCESS(rc))
720	rc = pDbgc->CmdHlp.pfnExec(&pDbgc->CmdHlp, "r");
721	break;
722	}
723
724	case DBGFEVENT_ASSERTION_HYPER:
725	{
726	pDbgc->fRegCtxGuest = false;
727
728	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL,
729	"\ndbgf event: Hypervisor Assertion! (%s)\n"
730	"%s"
731	"%s"
732	"\n",
733	dbgcGetEventCtx(pEvent->enmCtx),
734	pEvent->u.Assert.pszMsg1,
735	pEvent->u.Assert.pszMsg2);
736	if (RT_SUCCESS(rc))
737	rc = pDbgc->CmdHlp.pfnExec(&pDbgc->CmdHlp, "r");
738	break;
739	}
740
741	case DBGFEVENT_DEV_STOP:
742	{
743	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL,
744	"\n"
745	"dbgf event: DBGFSTOP (%s)\n"
746	"File: %s\n"
747	"Line: %d\n"
748	"Function: %s\n",
749	dbgcGetEventCtx(pEvent->enmCtx),
750	pEvent->u.Src.pszFile,
751	pEvent->u.Src.uLine,
752	pEvent->u.Src.pszFunction);
753	if (RT_SUCCESS(rc) && pEvent->u.Src.pszMessage && *pEvent->u.Src.pszMessage)
754	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL,
755	"Message: %s\n",
756	pEvent->u.Src.pszMessage);
757	if (RT_SUCCESS(rc))
758	rc = pDbgc->CmdHlp.pfnExec(&pDbgc->CmdHlp, "r");
759	break;
760	}
761
762
763	case DBGFEVENT_INVALID_COMMAND:
764	{
765	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf/dbgc error: Invalid command event!\n");
766	break;
767	}
768
769	case DBGFEVENT_POWERING_OFF:
770	{
771	pDbgc->fReady = false;
772	pDbgc->pBack->pfnSetReady(pDbgc->pBack, false);
773	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\nVM is powering off!\n");
774	fPrintPrompt = false;
775	rc = VERR_GENERAL_FAILURE;
776	break;
777	}
778
779
780	default:
781	{
782	/*
783	* Probably a generic event. Look it up to find its name.
784	*/
785	PCDBGCSXEVT pEvtDesc = dbgcEventLookup(pEvent->enmType);
786	if (pEvtDesc)
787	{
788	if (pEvtDesc->enmKind == kDbgcSxEventKind_Interrupt)
789	{
790	Assert(pEvtDesc->pszDesc);
791	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s no %#llx! (%s)\n",
792	pEvtDesc->pszDesc, pEvent->u.Generic.uArg, pEvtDesc->pszName);
793	}
794	else if ( (pEvtDesc->fFlags & DBGCSXEVT_F_TAKE_ARG)
795	\|\| pEvent->u.Generic.uArg != 0)
796	{
797	if (pEvtDesc->pszDesc)
798	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s - %s! arg=%#llx\n",
799	pEvtDesc->pszName, pEvtDesc->pszDesc, pEvent->u.Generic.uArg);
800	else
801	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s! arg=%#llx\n",
802	pEvtDesc->pszName, pEvent->u.Generic.uArg);
803	}
804	else
805	{
806	if (pEvtDesc->pszDesc)
807	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s - %s!\n",
808	pEvtDesc->pszName, pEvtDesc->pszDesc);
809	else
810	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s!\n", pEvtDesc->pszName);
811	}
812	}
813	else
814	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf/dbgc error: Unknown event %d!\n", pEvent->enmType);
815	break;
816	}
817	}
818
819	/*
820	* Prompt, anyone?
821	*/
822	if (fPrintPrompt && RT_SUCCESS(rc))
823	{
824	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "VBoxDbg> ");
825	pDbgc->fReady = true;
826	if (RT_SUCCESS(rc))
827	pDbgc->pBack->pfnSetReady(pDbgc->pBack, true);
828	}
829
830	return rc;
831	}
832
833
834	/**
835	* Prints any log lines from the log buffer.
836	*
837	* The caller must not call function this unless pDbgc->fLog is set.
838	*
839	* @returns VBox status code. (output related)
840	* @param pDbgc Debugger console instance data.
841	*/
842	static int dbgcProcessLog(PDBGC pDbgc)
843	{
844	/** @todo */
845	NOREF(pDbgc);
846	return 0;
847	}
848
849	/** @callback_method_impl{FNRTDBGCFGLOG} */
850	static DECLCALLBACK(void) dbgcDbgCfgLogCallback(RTDBGCFG hDbgCfg, uint32_t iLevel, const char pszMsg, void pvUser)
851	{
852	/** @todo Add symbol noise setting. */
853	NOREF(hDbgCfg); NOREF(iLevel);
854	PDBGC pDbgc = (PDBGC)pvUser;
855	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%s", pszMsg);
856	}
857
858
859	/**
860	* Run the debugger console.
861	*
862	* @returns VBox status code.
863	* @param pDbgc Pointer to the debugger console instance data.
864	*/
865	int dbgcRun(PDBGC pDbgc)
866	{
867	/*
868	* We're ready for commands now.
869	*/
870	pDbgc->fReady = true;
871	pDbgc->pBack->pfnSetReady(pDbgc->pBack, true);
872
873	/*
874	* Main Debugger Loop.
875	*
876	* This loop will either block on waiting for input or on waiting on
877	* debug events. If we're forwarding the log we cannot wait for long
878	* before we must flush the log.
879	*/
880	int rc;
881	for (;;)
882	{
883	rc = VERR_SEM_OUT_OF_TURN;
884	if (pDbgc->pUVM)
885	rc = DBGFR3QueryWaitable(pDbgc->pUVM);
886
887	if (RT_SUCCESS(rc))
888	{
889	/*
890	* Wait for a debug event.
891	*/
892	PCDBGFEVENT pEvent;
893	rc = DBGFR3EventWait(pDbgc->pUVM, pDbgc->fLog ? 1 : 32, &pEvent);
894	if (RT_SUCCESS(rc))
895	{
896	rc = dbgcProcessEvent(pDbgc, pEvent);
897	if (RT_FAILURE(rc))
898	break;
899	}
900	else if (rc != VERR_TIMEOUT)
901	break;
902
903	/*
904	* Check for input.
905	*/
906	if (pDbgc->pBack->pfnInput(pDbgc->pBack, 0))
907	{
908	rc = dbgcProcessInput(pDbgc, false /* fNoExecute */);
909	if (RT_FAILURE(rc))
910	break;
911	}
912	}
913	else if (rc == VERR_SEM_OUT_OF_TURN)
914	{
915	/*
916	* Wait for input. If Logging is enabled we'll only wait very briefly.
917	*/
918	if (pDbgc->pBack->pfnInput(pDbgc->pBack, pDbgc->fLog ? 1 : 1000))
919	{
920	rc = dbgcProcessInput(pDbgc, false /* fNoExecute */);
921	if (RT_FAILURE(rc))
922	break;
923	}
924	}
925	else
926	break;
927
928	/*
929	* Forward log output.
930	*/
931	if (pDbgc->fLog)
932	{
933	rc = dbgcProcessLog(pDbgc);
934	if (RT_FAILURE(rc))
935	break;
936	}
937	}
938
939	return rc;
940	}
941
942
943	/**
944	* Run the init scripts, if present.
945	*
946	* @param pDbgc The console instance.
947	*/
948	static void dbgcRunInitScripts(PDBGC pDbgc)
949	{
950	/*
951	* Do the global one, if it exists.
952	*/
953	if ( pDbgc->pszGlobalInitScript
954	&& *pDbgc->pszGlobalInitScript != '\0'
955	&& RTFileExists(pDbgc->pszGlobalInitScript))
956	dbgcEvalScript(pDbgc, pDbgc->pszGlobalInitScript, true /fAnnounce/);
957
958	/*
959	* Then do the local one, if it exists.
960	*/
961	if ( pDbgc->pszLocalInitScript
962	&& *pDbgc->pszLocalInitScript != '\0'
963	&& RTFileExists(pDbgc->pszLocalInitScript))
964	dbgcEvalScript(pDbgc, pDbgc->pszLocalInitScript, true /fAnnounce/);
965	}
966
967
968	/**
969	* Reads the CFGM configuration of the DBGC.
970	*
971	* Popuplates the PDBGC::pszHistoryFile, PDBGC::pszGlobalInitScript and
972	* PDBGC::pszLocalInitScript members.
973	*
974	* @returns VBox status code.
975	* @param pDbgc The console instance.
976	* @param pUVM The user mode VM handle.
977	*/
978	static int dbgcReadConfig(PDBGC pDbgc, PUVM pUVM)
979	{
980	/*
981	* Get and validate the configuration node.
982	*/
983	PCFGMNODE pNode = CFGMR3GetChild(CFGMR3GetRootU(pUVM), "DBGC");
984	int rc = CFGMR3ValidateConfig(pNode, "/DBGC/",
985	"Enabled\|"
986	"HistoryFile\|"
987	"LocalInitScript\|"
988	"GlobalInitScript",
989	"", "DBGC", 0);
990	AssertRCReturn(rc, rc);
991
992	/*
993	* Query the values.
994	*/
995	char szHomeDefault[RTPATH_MAX];
996	rc = RTPathUserHome(szHomeDefault, sizeof(szHomeDefault) - 32);
997	AssertLogRelRCReturn(rc, rc);
998	size_t cchHome = strlen(szHomeDefault);
999
1000	/** @cfgm{/DBGC/HistoryFile, string, ${HOME}/.vboxdbgc-history}
1001	* The command history file of the VBox debugger. */
1002	rc = RTPathAppend(szHomeDefault, sizeof(szHomeDefault), ".vboxdbgc-history");
1003	AssertLogRelRCReturn(rc, rc);
1004
1005	char szPath[RTPATH_MAX];
1006	rc = CFGMR3QueryStringDef(pNode, "HistoryFile", szPath, sizeof(szPath), szHomeDefault);
1007	AssertLogRelRCReturn(rc, rc);
1008
1009	pDbgc->pszHistoryFile = RTStrDup(szPath);
1010	AssertReturn(pDbgc->pszHistoryFile, VERR_NO_STR_MEMORY);
1011
1012	/** @cfgm{/DBGC/GlobalInitFile, string, ${HOME}/.vboxdbgc-init}
1013	* The global init script of the VBox debugger. */
1014	szHomeDefault[cchHome] = '\0';
1015	rc = RTPathAppend(szHomeDefault, sizeof(szHomeDefault), ".vboxdbgc-init");
1016	AssertLogRelRCReturn(rc, rc);
1017
1018	rc = CFGMR3QueryStringDef(pNode, "GlobalInitScript", szPath, sizeof(szPath), szHomeDefault);
1019	AssertLogRelRCReturn(rc, rc);
1020
1021	pDbgc->pszGlobalInitScript = RTStrDup(szPath);
1022	AssertReturn(pDbgc->pszGlobalInitScript, VERR_NO_STR_MEMORY);
1023
1024	/** @cfgm{/DBGC/LocalInitFile, string, none}
1025	* The VM local init script of the VBox debugger. */
1026	rc = CFGMR3QueryString(pNode, "LocalInitScript", szPath, sizeof(szPath));
1027	if (RT_SUCCESS(rc))
1028	{
1029	pDbgc->pszLocalInitScript = RTStrDup(szPath);
1030	AssertReturn(pDbgc->pszLocalInitScript, VERR_NO_STR_MEMORY);
1031	}
1032	else
1033	{
1034	AssertLogRelReturn(rc == VERR_CFGM_VALUE_NOT_FOUND \|\| rc == VERR_CFGM_NO_PARENT, rc);
1035	pDbgc->pszLocalInitScript = NULL;
1036	}
1037
1038	return VINF_SUCCESS;
1039	}
1040
1041
1042
1043	/**
1044	* Creates a a new instance.
1045	*
1046	* @returns VBox status code.
1047	* @param ppDbgc Where to store the pointer to the instance data.
1048	* @param pBack Pointer to the backend.
1049	* @param fFlags The flags.
1050	*/
1051	int dbgcCreate(PDBGC *ppDbgc, PDBGCBACK pBack, unsigned fFlags)
1052	{
1053	/*
1054	* Validate input.
1055	*/
1056	AssertPtrReturn(pBack, VERR_INVALID_POINTER);
1057	AssertMsgReturn(!fFlags, ("%#x", fFlags), VERR_INVALID_PARAMETER);
1058
1059	/*
1060	* Allocate and initialize.
1061	*/
1062	PDBGC pDbgc = (PDBGC)RTMemAllocZ(sizeof(*pDbgc));
1063	if (!pDbgc)
1064	return VERR_NO_MEMORY;
1065
1066	dbgcInitCmdHlp(pDbgc);
1067	pDbgc->pBack = pBack;
1068	pDbgc->pVM = NULL;
1069	pDbgc->pUVM = NULL;
1070	pDbgc->idCpu = 0;
1071	pDbgc->hDbgAs = DBGF_AS_GLOBAL;
1072	pDbgc->pszEmulation = "CodeView/WinDbg";
1073	pDbgc->paEmulationCmds = &g_aCmdsCodeView[0];
1074	pDbgc->cEmulationCmds = g_cCmdsCodeView;
1075	pDbgc->paEmulationFuncs = &g_aFuncsCodeView[0];
1076	pDbgc->cEmulationFuncs = g_cFuncsCodeView;
1077	//pDbgc->fLog = false;
1078	pDbgc->fRegCtxGuest = true;
1079	pDbgc->fRegTerse = true;
1080	//pDbgc->cPagingHierarchyDumps = 0;
1081	//pDbgc->DisasmPos = {0};
1082	//pDbgc->SourcePos = {0};
1083	//pDbgc->DumpPos = {0};
1084	pDbgc->pLastPos = &pDbgc->DisasmPos;
1085	//pDbgc->cbDumpElement = 0;
1086	//pDbgc->cVars = 0;
1087	//pDbgc->paVars = NULL;
1088	//pDbgc->pPlugInHead = NULL;
1089	//pDbgc->pFirstBp = NULL;
1090	//pDbgc->abSearch = {0};
1091	//pDbgc->cbSearch = 0;
1092	pDbgc->cbSearchUnit = 1;
1093	pDbgc->cMaxSearchHits = 1;
1094	//pDbgc->SearchAddr = {0};
1095	//pDbgc->cbSearchRange = 0;
1096
1097	//pDbgc->uInputZero = 0;
1098	//pDbgc->iRead = 0;
1099	//pDbgc->iWrite = 0;
1100	//pDbgc->cInputLines = 0;
1101	//pDbgc->fInputOverflow = false;
1102	pDbgc->fReady = true;
1103	pDbgc->pszScratch = &pDbgc->achScratch[0];
1104	//pDbgc->iArg = 0;
1105	//pDbgc->rcOutput = 0;
1106	//pDbgc->rcCmd = 0;
1107
1108	//pDbgc->pszHistoryFile = NULL;
1109	//pDbgc->pszGlobalInitScript = NULL;
1110	//pDbgc->pszLocalInitScript = NULL;
1111
1112	dbgcEvalInit();
1113
1114	*ppDbgc = pDbgc;
1115	return VINF_SUCCESS;
1116	}
1117
1118	/**
1119	* Destroys a DBGC instance created by dbgcCreate.
1120	*
1121	* @param pDbgc Pointer to the debugger console instance data.
1122	*/
1123	void dbgcDestroy(PDBGC pDbgc)
1124	{
1125	AssertPtr(pDbgc);
1126
1127	/* Disable log hook. */
1128	if (pDbgc->fLog)
1129	{
1130
1131	}
1132
1133	/* Detach from the VM. */
1134	if (pDbgc->pUVM)
1135	DBGFR3Detach(pDbgc->pUVM);
1136
1137	/* Free config strings. */
1138	RTStrFree(pDbgc->pszGlobalInitScript);
1139	pDbgc->pszGlobalInitScript = NULL;
1140	RTStrFree(pDbgc->pszLocalInitScript);
1141	pDbgc->pszLocalInitScript = NULL;
1142	RTStrFree(pDbgc->pszHistoryFile);
1143	pDbgc->pszHistoryFile = NULL;
1144
1145	/* Finally, free the instance memory. */
1146	RTMemFree(pDbgc);
1147	}
1148
1149
1150	/**
1151	* Make a console instance.
1152	*
1153	* This will not return until either an 'exit' command is issued or a error code
1154	* indicating connection loss is encountered.
1155	*
1156	* @returns VINF_SUCCESS if console termination caused by the 'exit' command.
1157	* @returns The VBox status code causing the console termination.
1158	*
1159	* @param pUVM The user mode VM handle.
1160	* @param pBack Pointer to the backend structure. This must contain
1161	* a full set of function pointers to service the console.
1162	* @param fFlags Reserved, must be zero.
1163	* @remarks A forced termination of the console is easiest done by forcing the
1164	* callbacks to return fatal failures.
1165	*/
1166	DBGDECL(int) DBGCCreate(PUVM pUVM, PDBGCBACK pBack, unsigned fFlags)
1167	{
1168	/*
1169	* Validate input.
1170	*/
1171	AssertPtrNullReturn(pUVM, VERR_INVALID_VM_HANDLE);
1172	PVM pVM = NULL;
1173	if (pUVM)
1174	{
1175	pVM = VMR3GetVM(pUVM);
1176	AssertPtrReturn(pVM, VERR_INVALID_VM_HANDLE);
1177	}
1178
1179	/*
1180	* Allocate and initialize instance data
1181	*/
1182	PDBGC pDbgc;
1183	int rc = dbgcCreate(&pDbgc, pBack, fFlags);
1184	if (RT_FAILURE(rc))
1185	return rc;
1186	if (!HMR3IsEnabled(pUVM))
1187	pDbgc->hDbgAs = DBGF_AS_RC_AND_GC_GLOBAL;
1188
1189	/*
1190	* Print welcome message.
1191	*/
1192	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL,
1193	"Welcome to the VirtualBox Debugger!\n");
1194
1195	/*
1196	* Attach to the specified VM.
1197	*/
1198	if (RT_SUCCESS(rc) && pUVM)
1199	{
1200	rc = dbgcReadConfig(pDbgc, pUVM);
1201	if (RT_SUCCESS(rc))
1202	{
1203	rc = DBGFR3Attach(pUVM);
1204	if (RT_SUCCESS(rc))
1205	{
1206	pDbgc->pVM = pVM;
1207	pDbgc->pUVM = pUVM;
1208	pDbgc->idCpu = 0;
1209	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL,
1210	"Current VM is %08x, CPU #%u\n" /** @todo get and print the VM name! */
1211	, pDbgc->pVM, pDbgc->idCpu);
1212	}
1213	else
1214	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to attach to VM %p\n", pDbgc->pVM);
1215	}
1216	else
1217	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "Error reading configuration\n");
1218	}
1219
1220	/*
1221	* Load plugins.
1222	*/
1223	if (RT_SUCCESS(rc))
1224	{
1225	if (pVM)
1226	DBGFR3PlugInLoadAll(pDbgc->pUVM);
1227	dbgcEventInit(pDbgc);
1228	dbgcRunInitScripts(pDbgc);
1229
1230	rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "VBoxDbg> ");
1231	if (RT_SUCCESS(rc))
1232	{
1233	/*
1234	* Set debug config log callback.
1235	*/
1236	RTDBGCFG hDbgCfg = DBGFR3AsGetConfig(pUVM);
1237	if ( hDbgCfg != NIL_RTDBGCFG
1238	&& RTDbgCfgRetain(hDbgCfg) != UINT32_MAX)
1239	{
1240	int rc2 = RTDbgCfgSetLogCallback(hDbgCfg, dbgcDbgCfgLogCallback, pDbgc);
1241	if (RT_FAILURE(rc2))
1242	{
1243	hDbgCfg = NIL_RTDBGCFG;
1244	RTDbgCfgRelease(hDbgCfg);
1245	}
1246	}
1247	else
1248	hDbgCfg = NIL_RTDBGCFG;
1249
1250
1251	/*
1252	* Run the debugger main loop.
1253	*/
1254	rc = dbgcRun(pDbgc);
1255
1256
1257	/*
1258	* Remove debug config log callback.
1259	*/
1260	if (hDbgCfg != NIL_RTDBGCFG)
1261	{
1262	RTDbgCfgSetLogCallback(hDbgCfg, NULL, NULL);
1263	RTDbgCfgRelease(hDbgCfg);
1264	}
1265	}
1266	dbgcEventTerm(pDbgc);
1267	}
1268	else
1269	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\nDBGCCreate error: %Rrc\n", rc);
1270
1271
1272	/*
1273	* Cleanup console debugger session.
1274	*/
1275	dbgcDestroy(pDbgc);
1276	return rc == VERR_DBGC_QUIT ? VINF_SUCCESS : rc;
1277	}
1278

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source: vbox/trunk/src/VBox/Debugger/DBGConsole.cpp@ 62481

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