dbg.h@ 35687

Last change on this file since 35687 was 35673, checked in by vboxsync, 14 years ago
Debugger Console: Some cleanups.
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1	/** @file
2	* Debugger Interfaces. (VBoxDbg)
3	*
4	* This header covers all external interfaces of the Debugger module.
5	* However, it does not cover the DBGF interface since that part of the
6	* VMM. Use dbgf.h for that.
7	*/
8
9	/*
10	* Copyright (C) 2006-2007 Oracle Corporation
11	*
12	* This file is part of VirtualBox Open Source Edition (OSE), as
13	* available from http://www.virtualbox.org. This file is free software;
14	* you can redistribute it and/or modify it under the terms of the GNU
15	* General Public License (GPL) as published by the Free Software
16	* Foundation, in version 2 as it comes in the "COPYING" file of the
17	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
18	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
19	*
20	* The contents of this file may alternatively be used under the terms
21	* of the Common Development and Distribution License Version 1.0
22	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
23	* VirtualBox OSE distribution, in which case the provisions of the
24	* CDDL are applicable instead of those of the GPL.
25	*
26	* You may elect to license modified versions of this file under the
27	* terms and conditions of either the GPL or the CDDL or both.
28	*/
29
30	#ifndef ___VBox_dbg_h
31	#define ___VBox_dbg_h
32
33	#include <VBox/cdefs.h>
34	#include <VBox/types.h>
35	#include <VBox/vmm/dbgf.h>
36
37	#include <iprt/stdarg.h>
38	#ifdef IN_RING3
39	# include <iprt/err.h>
40	#endif
41
42	RT_C_DECLS_BEGIN
43
44	/** @def VBOX_WITH_DEBUGGER
45	* The build is with debugger module. Test if this is defined before registering
46	* external debugger commands. This is normally defined in Config.kmk.
47	*/
48	#ifdef DOXYGEN_RUNNING
49	# define VBOX_WITH_DEBUGGER
50	#endif
51
52
53	/**
54	* DBGC variable category.
55	*
56	* Used to describe an argument to a command or function and a functions
57	* return value.
58	*/
59	typedef enum DBGCVARCAT
60	{
61	/** Any type is fine. */
62	DBGCVAR_CAT_ANY = 0,
63	/** Any kind of pointer or number. */
64	DBGCVAR_CAT_POINTER_NUMBER,
65	/** Any kind of pointer or number, no range. */
66	DBGCVAR_CAT_POINTER_NUMBER_NO_RANGE,
67	/** Any kind of pointer. */
68	DBGCVAR_CAT_POINTER,
69	/** Any kind of pointer with no range option. */
70	DBGCVAR_CAT_POINTER_NO_RANGE,
71	/** GC pointer. */
72	DBGCVAR_CAT_GC_POINTER,
73	/** GC pointer with no range option. */
74	DBGCVAR_CAT_GC_POINTER_NO_RANGE,
75	/** Numeric argument. */
76	DBGCVAR_CAT_NUMBER,
77	/** Numeric argument with no range option. */
78	DBGCVAR_CAT_NUMBER_NO_RANGE,
79	/** String. */
80	DBGCVAR_CAT_STRING,
81	/** Symbol. */
82	DBGCVAR_CAT_SYMBOL,
83	/** Option. */
84	DBGCVAR_CAT_OPTION,
85	/** Option + string. */
86	DBGCVAR_CAT_OPTION_STRING,
87	/** Option + number. */
88	DBGCVAR_CAT_OPTION_NUMBER
89	} DBGCVARCAT;
90
91
92	/**
93	* DBGC variable type.
94	*/
95	typedef enum DBGCVARTYPE
96	{
97	/** unknown... */
98	DBGCVAR_TYPE_UNKNOWN = 0,
99	/** Flat GC pointer. */
100	DBGCVAR_TYPE_GC_FLAT,
101	/** Segmented GC pointer. */
102	DBGCVAR_TYPE_GC_FAR,
103	/** Physical GC pointer. */
104	DBGCVAR_TYPE_GC_PHYS,
105	/** Flat HC pointer. */
106	DBGCVAR_TYPE_HC_FLAT,
107	/** Physical HC pointer. */
108	DBGCVAR_TYPE_HC_PHYS,
109	/** String. */
110	DBGCVAR_TYPE_STRING,
111	/** Number. */
112	DBGCVAR_TYPE_NUMBER,
113	/** Symbol.
114	* @todo drop this */
115	DBGCVAR_TYPE_SYMBOL,
116	/** Special type used when querying symbols. */
117	DBGCVAR_TYPE_ANY
118	} DBGCVARTYPE;
119
120	/** @todo Rename to DBGCVAR_IS_xyz. */
121
122	/** Checks if the specified variable type is of a pointer persuasion. */
123	#define DBGCVAR_ISPOINTER(enmType) ((enmType) >= DBGCVAR_TYPE_GC_FLAT && enmType <= DBGCVAR_TYPE_HC_PHYS)
124	/** Checks if the specified variable type is of a pointer persuasion. */
125	#define DBGCVAR_IS_FAR_PTR(enmType) ((enmType) == DBGCVAR_TYPE_GC_FAR)
126	/** Checks if the specified variable type is of a pointer persuasion and of the guest context sort. */
127	#define DBGCVAR_ISGCPOINTER(enmType) ((enmType) >= DBGCVAR_TYPE_GC_FLAT && (enmType) <= DBGCVAR_TYPE_GC_PHYS)
128	/** Checks if the specified variable type is of a pointer persuasion and of the host context sort. */
129	#define DBGCVAR_ISHCPOINTER(enmType) ((enmType) >= DBGCVAR_TYPE_HC_FLAT && (enmType) <= DBGCVAR_TYPE_HC_PHYS)
130
131
132	/**
133	* DBGC variable range type.
134	*/
135	typedef enum DBGCVARRANGETYPE
136	{
137	/** No range appliable or no range specified. */
138	DBGCVAR_RANGE_NONE = 0,
139	/** Number of elements. */
140	DBGCVAR_RANGE_ELEMENTS,
141	/** Number of bytes. */
142	DBGCVAR_RANGE_BYTES
143	} DBGCVARRANGETYPE;
144
145
146	/**
147	* Variable descriptor.
148	*/
149	typedef struct DBGCVARDESC
150	{
151	/** The minimal number of times this argument may occur.
152	* Use 0 here to inidicate that the argument is optional. */
153	unsigned cTimesMin;
154	/** Maximum number of occurrences.
155	* Use ~0 here to indicate infinite. */
156	unsigned cTimesMax;
157	/** Argument category. */
158	DBGCVARCAT enmCategory;
159	/** Flags, DBGCVD_FLAGS_* */
160	unsigned fFlags;
161	/** Argument name. */
162	const char *pszName;
163	/** Argument name. */
164	const char *pszDescription;
165	} DBGCVARDESC;
166	/** Pointer to an argument descriptor. */
167	typedef DBGCVARDESC *PDBGCVARDESC;
168	/** Pointer to a const argument descriptor. */
169	typedef const DBGCVARDESC *PCDBGCVARDESC;
170
171	/** Variable descriptor flags.
172	* @{ */
173	/** Indicates that the variable depends on the previous being present. */
174	#define DBGCVD_FLAGS_DEP_PREV RT_BIT(1)
175	/** @} */
176
177
178	/**
179	* DBGC variable.
180	*/
181	typedef struct DBGCVAR
182	{
183	/** Pointer to the argument descriptor. */
184	PCDBGCVARDESC pDesc;
185	/** Pointer to the next argument. */
186	struct DBGCVAR *pNext;
187
188	/** Argument type. */
189	DBGCVARTYPE enmType;
190	/** Type specific. */
191	union
192	{
193	/** Flat GC Address. (DBGCVAR_TYPE_GC_FLAT) */
194	RTGCPTR GCFlat;
195	/** Far (16:32) GC Address. (DBGCVAR_TYPE_GC_FAR) */
196	RTFAR32 GCFar;
197	/** Physical GC Address. (DBGCVAR_TYPE_GC_PHYS) */
198	RTGCPHYS GCPhys;
199	/** Flat HC Address. (DBGCVAR_TYPE_HC_FLAT) */
200	void *pvHCFlat;
201	/** Physical GC Address. (DBGCVAR_TYPE_HC_PHYS) */
202	RTHCPHYS HCPhys;
203	/** String. (DBGCVAR_TYPE_STRING)
204	* The basic idea is the the this is a pointer to the expression we're
205	* parsing, so no messing with freeing. */
206	const char *pszString;
207	/** Number. (DBGCVAR_TYPE_NUMBER) */
208	uint64_t u64Number;
209	} u;
210
211	/** Range type. */
212	DBGCVARRANGETYPE enmRangeType;
213	/** Range. The use of the content depends on the enmRangeType. */
214	uint64_t u64Range;
215	} DBGCVAR;
216	/** Pointer to a command argument. */
217	typedef DBGCVAR *PDBGCVAR;
218	/** Pointer to a const command argument. */
219	typedef const DBGCVAR *PCDBGCVAR;
220
221
222	/**
223	* Macro for initializing a DBGC variable with defaults.
224	* The result is an unknown variable type without any range.
225	*/
226	#define DBGCVAR_INIT(pVar) \
227	do { \
228	(pVar)->pDesc = NULL;\
229	(pVar)->pNext = NULL; \
230	(pVar)->enmType = DBGCVAR_TYPE_UNKNOWN; \
231	(pVar)->u.u64Number = 0; \
232	(pVar)->enmRangeType = DBGCVAR_RANGE_NONE; \
233	(pVar)->u64Range = 0; \
234	} while (0)
235
236	/**
237	* Macro for initializing a DBGC variable with a HC physical address.
238	*/
239	#define DBGCVAR_INIT_HC_PHYS(pVar, Phys) \
240	do { \
241	DBGCVAR_INIT(pVar); \
242	(pVar)->enmType = DBGCVAR_TYPE_HC_PHYS; \
243	(pVar)->u.HCPhys = (Phys); \
244	} while (0)
245
246	/**
247	* Macro for initializing a DBGC variable with a HC flat address.
248	*/
249	#define DBGCVAR_INIT_HC_FLAT(pVar, Flat) \
250	do { \
251	DBGCVAR_INIT(pVar); \
252	(pVar)->enmType = DBGCVAR_TYPE_HC_FLAT; \
253	(pVar)->u.pvHCFlat = (Flat); \
254	} while (0)
255
256	/**
257	* Macro for initializing a DBGC variable with a GC physical address.
258	*/
259	#define DBGCVAR_INIT_GC_PHYS(pVar, Phys) \
260	do { \
261	DBGCVAR_INIT(pVar); \
262	(pVar)->enmType = DBGCVAR_TYPE_GC_PHYS; \
263	(pVar)->u.GCPhys = (Phys); \
264	} while (0)
265
266	/**
267	* Macro for initializing a DBGC variable with a GC flat address.
268	*/
269	#define DBGCVAR_INIT_GC_FLAT(pVar, Flat) \
270	do { \
271	DBGCVAR_INIT(pVar); \
272	(pVar)->enmType = DBGCVAR_TYPE_GC_FLAT; \
273	(pVar)->u.GCFlat = (Flat); \
274	} while (0)
275
276	/**
277	* Macro for initializing a DBGC variable with a GC flat address.
278	*/
279	#define DBGCVAR_INIT_GC_FLAT_BYTE_RANGE(pVar, Flat, cbRange) \
280	do { \
281	DBGCVAR_INIT(pVar); \
282	(pVar)->enmType = DBGCVAR_TYPE_GC_FLAT; \
283	(pVar)->u.GCFlat = (Flat); \
284	DBGCVAR_SET_RANGE(pVar, DBGCVAR_RANGE_BYTES, cbRange); \
285	} while (0)
286
287	/**
288	* Macro for initializing a DBGC variable with a GC far address.
289	*/
290	#define DBGCVAR_INIT_GC_FAR(pVar, _sel, _off) \
291	do { \
292	DBGCVAR_INIT(pVar); \
293	(pVar)->enmType = DBGCVAR_TYPE_GC_FAR; \
294	(pVar)->u.GCFar.sel = (_sel); \
295	(pVar)->u.GCFar.off = (_off); \
296	} while (0)
297
298	/**
299	* Macro for initializing a DBGC variable with a number.
300	*/
301	#define DBGCVAR_INIT_NUMBER(pVar, Value) \
302	do { \
303	DBGCVAR_INIT(pVar); \
304	(pVar)->enmType = DBGCVAR_TYPE_NUMBER; \
305	(pVar)->u.u64Number = (Value); \
306	} while (0)
307
308	/**
309	* Macro for initializing a DBGC variable with a string.
310	*/
311	#define DBGCVAR_INIT_STRING(pVar, a_pszString) \
312	do { \
313	DBGCVAR_INIT(pVar); \
314	(pVar)->enmType = DBGCVAR_TYPE_STRING; \
315	(pVar)->enmRangeType = DBGCVAR_RANGE_BYTES; \
316	(pVar)->u.pszString = (a_pszString); \
317	(pVar)->u64Range = strlen(a_pszString); \
318	} while (0)
319
320
321	/**
322	* Macro for setting the range of a DBGC variable.
323	* @param pVar The variable.
324	* @param _enmRangeType The range type.
325	* @param Value The range length value.
326	*/
327	#define DBGCVAR_SET_RANGE(pVar, _enmRangeType, Value) \
328	do { \
329	(pVar)->enmRangeType = (_enmRangeType); \
330	(pVar)->u64Range = (Value); \
331	} while (0)
332
333
334	/**
335	* Macro for setting the range of a DBGC variable.
336	* @param a_pVar The variable.
337	* @param a_cbRange The range, in bytes.
338	*/
339	#define DBGCVAR_SET_BYTE_RANGE(a_pVar, a_cbRange) \
340	DBGCVAR_SET_RANGE(a_pVar, DBGCVAR_RANGE_BYTES, a_cbRange)
341
342
343	/**
344	* Macro for resetting the range a DBGC variable.
345	* @param a_pVar The variable.
346	*/
347	#define DBGCVAR_ZAP_RANGE(a_pVar) \
348	do { \
349	(a_pVar)->enmRangeType = DBGCVAR_RANGE_NONE; \
350	(a_pVar)->u64Range = 0; \
351	} while (0)
352
353
354	/**
355	* Macro for assigning one DBGC variable to another.
356	* @param a_pResult The result (target) variable.
357	* @param a_pVar The source variable.
358	*/
359	#define DBGCVAR_ASSIGN(a_pResult, a_pVar) \
360	do { \
361	(a_pResult) = (a_pVar); \
362	} while (0)
363
364
365	/** Pointer to command descriptor. */
366	typedef struct DBGCCMD *PDBGCCMD;
367	/** Pointer to const command descriptor. */
368	typedef const struct DBGCCMD *PCDBGCCMD;
369
370	/** Pointer to helper functions for commands. */
371	typedef struct DBGCCMDHLP *PDBGCCMDHLP;
372
373	/**
374	* Command helper for writing text to the debug console.
375	*
376	* @returns VBox status.
377	* @param pCmdHlp Pointer to the command callback structure.
378	* @param pvBuf What to write.
379	* @param cbBuf Number of bytes to write.
380	* @param pcbWritten Where to store the number of bytes actually written.
381	* If NULL the entire buffer must be successfully written.
382	*/
383	typedef DECLCALLBACK(int) FNDBGCHLPWRITE(PDBGCCMDHLP pCmdHlp, const void pvBuf, size_t cbBuf, size_t pcbWritten);
384	/** Pointer to a FNDBGCHLPWRITE() function. */
385	typedef FNDBGCHLPWRITE *PFNDBGCHLPWRITE;
386
387	/**
388	* Command helper for writing formatted text to the debug console.
389	*
390	* @returns VBox status.
391	* @param pCmdHlp Pointer to the command callback structure.
392	* @param pcb Where to store the number of bytes written.
393	* @param pszFormat The format string.
394	* This is using the log formatter, so it's format extensions can be used.
395	* @param ... Arguments specified in the format string.
396	*/
397	typedef DECLCALLBACK(int) FNDBGCHLPPRINTF(PDBGCCMDHLP pCmdHlp, size_t pcbWritten, const char pszFormat, ...);
398	/** Pointer to a FNDBGCHLPPRINTF() function. */
399	typedef FNDBGCHLPPRINTF *PFNDBGCHLPPRINTF;
400
401	/**
402	* Command helper for writing formatted text to the debug console.
403	*
404	* @returns VBox status.
405	* @param pCmdHlp Pointer to the command callback structure.
406	* @param pcb Where to store the number of bytes written.
407	* @param pszFormat The format string.
408	* This is using the log formatter, so it's format extensions can be used.
409	* @param args Arguments specified in the format string.
410	*/
411	typedef DECLCALLBACK(int) FNDBGCHLPPRINTFV(PDBGCCMDHLP pCmdHlp, size_t pcbWritten, const char pszFormat, va_list args);
412	/** Pointer to a FNDBGCHLPPRINTFV() function. */
413	typedef FNDBGCHLPPRINTFV *PFNDBGCHLPPRINTFV;
414
415	/**
416	* Command helper for formatting and error message for a VBox status code.
417	*
418	* @returns VBox status code appropriate to return from a command.
419	* @param pCmdHlp Pointer to the command callback structure.
420	* @param rc The VBox status code.
421	* @param pszFormat Format string for additional messages. Can be NULL.
422	* @param ... Format arguments, optional.
423	*/
424	typedef DECLCALLBACK(int) FNDBGCHLPVBOXERROR(PDBGCCMDHLP pCmdHlp, int rc, const char *pszFormat, ...);
425	/** Pointer to a FNDBGCHLPVBOXERROR() function. */
426	typedef FNDBGCHLPVBOXERROR *PFNDBGCHLPVBOXERROR;
427
428	/**
429	* Command helper for formatting and error message for a VBox status code.
430	*
431	* @returns VBox status code appropriate to return from a command.
432	* @param pCmdHlp Pointer to the command callback structure.
433	* @param rc The VBox status code.
434	* @param pcb Where to store the number of bytes written.
435	* @param pszFormat Format string for additional messages. Can be NULL.
436	* @param args Format arguments, optional.
437	*/
438	typedef DECLCALLBACK(int) FNDBGCHLPVBOXERRORV(PDBGCCMDHLP pCmdHlp, int rc, const char *pszFormat, va_list args);
439	/** Pointer to a FNDBGCHLPVBOXERRORV() function. */
440	typedef FNDBGCHLPVBOXERRORV *PFNDBGCHLPVBOXERRORV;
441
442	/**
443	* Command helper for reading memory specified by a DBGC variable.
444	*
445	* @returns VBox status code appropriate to return from a command.
446	* @param pCmdHlp Pointer to the command callback structure.
447	* @param pVM VM handle if GC or physical HC address.
448	* @param pvBuffer Where to store the read data.
449	* @param cbRead Number of bytes to read.
450	* @param pVarPointer DBGC variable specifying where to start reading.
451	* @param pcbRead Where to store the number of bytes actually read.
452	* This optional, but it's useful when read GC virtual memory where a
453	* page in the requested range might not be present.
454	* If not specified not-present failure or end of a HC physical page
455	* will cause failure.
456	*/
457	typedef DECLCALLBACK(int) FNDBGCHLPMEMREAD(PDBGCCMDHLP pCmdHlp, PVM pVM, void pvBuffer, size_t cbRead, PCDBGCVAR pVarPointer, size_t pcbRead);
458	/** Pointer to a FNDBGCHLPMEMREAD() function. */
459	typedef FNDBGCHLPMEMREAD *PFNDBGCHLPMEMREAD;
460
461	/**
462	* Command helper for writing memory specified by a DBGC variable.
463	*
464	* @returns VBox status code appropriate to return from a command.
465	* @param pCmdHlp Pointer to the command callback structure.
466	* @param pVM VM handle if GC or physical HC address.
467	* @param pvBuffer What to write.
468	* @param cbWrite Number of bytes to write.
469	* @param pVarPointer DBGC variable specifying where to start reading.
470	* @param pcbWritten Where to store the number of bytes written.
471	* This is optional. If NULL be aware that some of the buffer
472	* might have been written to the specified address.
473	*/
474	typedef DECLCALLBACK(int) FNDBGCHLPMEMWRITE(PDBGCCMDHLP pCmdHlp, PVM pVM, const void pvBuffer, size_t cbWrite, PCDBGCVAR pVarPointer, size_t pcbWritten);
475	/** Pointer to a FNDBGCHLPMEMWRITE() function. */
476	typedef FNDBGCHLPMEMWRITE *PFNDBGCHLPMEMWRITE;
477
478
479
480	/**
481	* Executes command an expression.
482	* (Hopefully the parser and functions are fully reentrant.)
483	*
484	* @returns VBox status code appropriate to return from a command.
485	* @param pCmdHlp Pointer to the command callback structure.
486	* @param pszExpr The expression. Format string with the format DBGC extensions.
487	* @param ... Format arguments.
488	*/
489	typedef DECLCALLBACK(int) FNDBGCHLPEXEC(PDBGCCMDHLP pCmdHlp, const char *pszExpr, ...);
490	/** Pointer to a FNDBGCHLPEVAL() function. */
491	typedef FNDBGCHLPEXEC *PFNDBGCHLPEXEC;
492
493
494	/**
495	* Helper functions for commands.
496	*/
497	typedef struct DBGCCMDHLP
498	{
499	/** Pointer to a FNDBCHLPWRITE() function. */
500	PFNDBGCHLPWRITE pfnWrite;
501	/** Pointer to a FNDBGCHLPPRINTF() function. */
502	PFNDBGCHLPPRINTF pfnPrintf;
503	/** Pointer to a FNDBGCHLPPRINTFV() function. */
504	PFNDBGCHLPPRINTFV pfnPrintfV;
505	/** Pointer to a FNDBGCHLPVBOXERROR() function. */
506	PFNDBGCHLPVBOXERROR pfnVBoxError;
507	/** Pointer to a FNDBGCHLPVBOXERRORV() function. */
508	PFNDBGCHLPVBOXERRORV pfnVBoxErrorV;
509	/** Pointer to a FNDBGCHLPMEMREAD() function. */
510	PFNDBGCHLPMEMREAD pfnMemRead;
511	/** Pointer to a FNDBGCHLPMEMWRITE() function. */
512	PFNDBGCHLPMEMWRITE pfnMemWrite;
513	/** Pointer to a FNDBGCHLPEXEC() function. */
514	PFNDBGCHLPEXEC pfnExec;
515
516	/**
517	* Evaluates an expression.
518	* (Hopefully the parser and functions are fully reentrant.)
519	*
520	* @returns VBox status code appropriate to return from a command.
521	* @param pCmdHlp Pointer to the command callback structure.
522	* @param pResult Where to store the result.
523	* @param pszExpr The expression. Format string with the format DBGC extensions.
524	* @param va Format arguments.
525	*/
526	DECLCALLBACKMEMBER(int, pfnEvalV)(PDBGCCMDHLP pCmdHlp, PDBGCVAR pResult, const char *pszExpr, va_list va);
527
528	/**
529	* Print an error and fail the current command.
530	*
531	* @returns VBox status code to pass upwards.
532	*
533	* @param pCmdHlp Pointer to the command callback structure.
534	* @param pCmd The failing command.
535	* @param pszFormat The error message format string.
536	* @param va Format arguments.
537	*/
538	DECLCALLBACKMEMBER(int, pfnFailV)(PDBGCCMDHLP pCmdHlp, PCDBGCCMD pCmd, const char *pszFormat, va_list va);
539
540	/**
541	* Converts a DBGC variable to a DBGF address structure.
542	*
543	* @returns VBox status code.
544	* @param pCmdHlp Pointer to the command callback structure.
545	* @param pVar The variable to convert.
546	* @param pAddress The target address.
547	*/
548	DECLCALLBACKMEMBER(int, pfnVarToDbgfAddr)(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, PDBGFADDRESS pAddress);
549
550	/**
551	* Converts a DBGF address structure to a DBGC variable.
552	*
553	* @returns VBox status code.
554	* @param pCmdHlp Pointer to the command callback structure.
555	* @param pAddress The source address.
556	* @param pResult The result variable.
557	*/
558	DECLCALLBACKMEMBER(int, pfnVarFromDbgfAddr)(PDBGCCMDHLP pCmdHlp, PCDBGFADDRESS pAddress, PDBGCVAR pResult);
559
560	/**
561	* Converts a DBGC variable to a 64-bit number.
562	*
563	* @returns VBox status code.
564	* @param pCmdHlp Pointer to the command callback structure.
565	* @param pVar The variable to convert.
566	* @param pu64Number Where to store the number.
567	*/
568	DECLCALLBACKMEMBER(int, pfnVarToNumber)(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, uint64_t *pu64Number);
569
570	/**
571	* Converts a DBGC variable to a boolean.
572	*
573	* @returns VBox status code.
574	* @param pCmdHlp Pointer to the command callback structure.
575	* @param pVar The variable to convert.
576	* @param pf Where to store the boolean.
577	*/
578	DECLCALLBACKMEMBER(int, pfnVarToBool)(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, bool *pf);
579
580	/**
581	* Get the range of a variable in bytes, resolving symbols if necessary.
582	*
583	* @returns VBox status code.
584	* @param pCmdHlp Pointer to the command callback structure.
585	* @param pVar The variable to convert.
586	* @param cbElement Conversion factor for element ranges.
587	* @param cbDefault The default range.
588	* @param pcbRange The length of the range.
589	*/
590	DECLCALLBACKMEMBER(int, pfnVarGetRange)(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, uint64_t cbElement, uint64_t cbDefault,
591	uint64_t *pcbRange);
592
593	/**
594	* Converts a variable to one with the specified type.
595	*
596	* This preserves the range.
597	*
598	* @returns VBox status code.
599	* @param pCmdHlp Pointer to the command callback structure.
600	* @param pVar The variable to convert.
601	* @param enmToType The target type.
602	* @param fConvSyms If @c true, then attempt to resolve symbols.
603	* @param pResult The output variable. Can be the same as @a pVar.
604	*/
605	DECLCALLBACKMEMBER(int, pfnVarConvert)(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, DBGCVARTYPE enmToType, bool fConvSyms,
606	PDBGCVAR pResult);
607
608	/**
609	* Gets a DBGF output helper that directs the output to the debugger
610	* console.
611	*
612	* @returns Pointer to the helper structure.
613	* @param pCmdHlp Pointer to the command callback structure.
614	*/
615	DECLCALLBACKMEMBER(PCDBGFINFOHLP, pfnGetDbgfOutputHlp)(PDBGCCMDHLP pCmdHlp);
616
617	} DBGCCMDHLP;
618
619
620	#ifdef IN_RING3
621
622	/**
623	* Command helper for writing formatted text to the debug console.
624	*
625	* @returns VBox status.
626	* @param pCmdHlp Pointer to the command callback structure.
627	* @param pszFormat The format string.
628	* This is using the log formatter, so it's format extensions can be used.
629	* @param ... Arguments specified in the format string.
630	*/
631	DECLINLINE(int) DBGCCmdHlpPrintf(PDBGCCMDHLP pCmdHlp, const char *pszFormat, ...)
632	{
633	va_list va;
634	int rc;
635
636	va_start(va, pszFormat);
637	rc = pCmdHlp->pfnPrintfV(pCmdHlp, NULL, pszFormat, va);
638	va_end(va);
639
640	return rc;
641	}
642
643	/**
644	* @copydoc FNDBGCHLPVBOXERROR
645	*/
646	DECLINLINE(int) DBGCCmdHlpVBoxError(PDBGCCMDHLP pCmdHlp, int rc, const char *pszFormat, ...)
647	{
648	va_list va;
649
650	va_start(va, pszFormat);
651	rc = pCmdHlp->pfnVBoxErrorV(pCmdHlp, rc, pszFormat, va);
652	va_end(va);
653
654	return rc;
655	}
656
657	/**
658	* @copydoc FNDBGCHLPMEMREAD
659	*/
660	DECLINLINE(int) DBGCCmdHlpMemRead(PDBGCCMDHLP pCmdHlp, PVM pVM, void pvBuffer, size_t cbRead, PCDBGCVAR pVarPointer, size_t pcbRead)
661	{
662	return pCmdHlp->pfnMemRead(pCmdHlp, pVM, pvBuffer, cbRead, pVarPointer, pcbRead);
663	}
664
665	/**
666	* Evaluates an expression.
667	* (Hopefully the parser and functions are fully reentrant.)
668	*
669	* @returns VBox status code appropriate to return from a command.
670	* @param pCmdHlp Pointer to the command callback structure.
671	* @param pResult Where to store the result.
672	* @param pszExpr The expression. Format string with the format DBGC extensions.
673	* @param ... Format arguments.
674	*/
675	DECLINLINE(int) DBGCCmdHlpEval(PDBGCCMDHLP pCmdHlp, PDBGCVAR pResult, const char *pszExpr, ...)
676	{
677	va_list va;
678	int rc;
679
680	va_start(va, pszExpr);
681	rc = pCmdHlp->pfnEvalV(pCmdHlp, pResult, pszExpr, va);
682	va_end(va);
683
684	return rc;
685	}
686
687	/**
688	* Print an error and fail the current command.
689	*
690	* @returns VBox status code to pass upwards.
691	*
692	* @param pCmdHlp Pointer to the command callback structure.
693	* @param pCmd The failing command.
694	* @param pszFormat The error message format string.
695	* @param ... Format arguments.
696	*/
697	DECLINLINE(int) DBGCCmdHlpFail(PDBGCCMDHLP pCmdHlp, PCDBGCCMD pCmd, const char *pszFormat, ...)
698	{
699	va_list va;
700	int rc;
701
702	va_start(va, pszFormat);
703	rc = pCmdHlp->pfnFailV(pCmdHlp, pCmd, pszFormat, va);
704	va_end(va);
705
706	return rc;
707	}
708
709	/**
710	* @copydoc DBGCCMDHLP::pfnVarToDbgfAddr
711	*/
712	DECLINLINE(int) DBGCCmdHlpVarToDbgfAddr(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, PDBGFADDRESS pAddress)
713	{
714	return pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pVar, pAddress);
715	}
716
717	/**
718	* @copydoc DBGCCMDHLP::pfnVarToDbgfAddr
719	*/
720	DECLINLINE(int) DBGCCmdHlpVarFromDbgfAddr(PDBGCCMDHLP pCmdHlp, PCDBGFADDRESS pAddress, PDBGCVAR pResult)
721	{
722	return pCmdHlp->pfnVarFromDbgfAddr(pCmdHlp, pAddress, pResult);
723	}
724
725	/**
726	* Converts an variable to a flat address.
727	*
728	* @returns VBox status code.
729	* @param pCmdHlp Pointer to the command callback structure.
730	* @param pVar The variable to convert.
731	* @param pFlatPtr Where to store the flat address.
732	*/
733	DECLINLINE(int) DBGCCmdHlpVarToFlatAddr(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, PRTGCPTR pFlatPtr)
734	{
735	DBGFADDRESS Addr;
736	int rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pVar, &Addr);
737	if (RT_SUCCESS(rc))
738	*pFlatPtr = Addr.FlatPtr;
739	return rc;
740	}
741
742	/**
743	* @copydoc DBGCCMDHLP::pfnVarToNumber
744	*/
745	DECLINLINE(int) DBGCCmdHlpVarToNumber(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, uint64_t *pu64Number)
746	{
747	return pCmdHlp->pfnVarToNumber(pCmdHlp, pVar, pu64Number);
748	}
749
750	/**
751	* @copydoc DBGCCMDHLP::pfnVarToBool
752	*/
753	DECLINLINE(int) DBGCCmdHlpVarToBool(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, bool *pf)
754	{
755	return pCmdHlp->pfnVarToBool(pCmdHlp, pVar, pf);
756	}
757
758	/**
759	* @copydoc DBGCCMDHLP::pfnVarGetRange
760	*/
761	DECLINLINE(int) DBGCCmdHlpVarGetRange(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, uint64_t cbElement, uint64_t cbDefault, uint64_t *pcbRange)
762	{
763	return pCmdHlp->pfnVarGetRange(pCmdHlp, pVar, cbElement, cbDefault, pcbRange);
764	}
765
766	/**
767	* @copydoc DBGCCMDHLP::pfnVarConvert
768	*/
769	DECLINLINE(int) DBGCCmdHlpConvert(PDBGCCMDHLP pCmdHlp, PCDBGCVAR pVar, DBGCVARTYPE enmToType, bool fConvSyms, PDBGCVAR pResult)
770	{
771	return pCmdHlp->pfnVarConvert(pCmdHlp, pVar, enmToType, fConvSyms, pResult);
772	}
773
774	/**
775	* @copydoc DBGCCMDHLP::pfnGetDbgfOutputHlp
776	*/
777	DECLINLINE(PCDBGFINFOHLP) DBGCCmdHlpGetDbgfOutputHlp(PDBGCCMDHLP pCmdHlp)
778	{
779	return pCmdHlp->pfnGetDbgfOutputHlp(pCmdHlp);
780	}
781
782	#endif /* IN_RING3 */
783
784
785
786	/**
787	* Command handler.
788	*
789	* The console will call the handler for a command once it's finished
790	* parsing the user input. The command handler function is responsible
791	* for executing the command itself.
792	*
793	* @returns VBox status.
794	* @param pCmd Pointer to the command descriptor (as registered).
795	* @param pCmdHlp Pointer to command helper functions.
796	* @param pVM Pointer to the current VM (if any).
797	* @param paArgs Pointer to (readonly) array of arguments.
798	* @param cArgs Number of arguments in the array.
799	* @param pResult Where to store the result. NULL if no result descriptor was specified.
800	*/
801	typedef DECLCALLBACK(int) FNDBGCCMD(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pArgs, unsigned cArgs, PDBGCVAR pResult);
802	/** Pointer to a FNDBGCCMD() function. */
803	typedef FNDBGCCMD *PFNDBGCCMD;
804
805	/**
806	* DBGC command descriptor.
807	*
808	* If a pResultDesc is specified the command can be called and used
809	* as a function too. If it's a pure function, set fFlags to
810	* DBGCCMD_FLAGS_FUNCTION.
811	*/
812	typedef struct DBGCCMD
813	{
814	/** Command string. */
815	const char *pszCmd;
816	/** Minimum number of arguments. */
817	unsigned cArgsMin;
818	/** Max number of arguments. */
819	unsigned cArgsMax;
820	/** Argument descriptors (array). */
821	PCDBGCVARDESC paArgDescs;
822	/** Number of argument descriptors. */
823	unsigned cArgDescs;
824	/** Result descriptor. */
825	PCDBGCVARDESC pResultDesc;
826	/** flags. (reserved for now) */
827	unsigned fFlags;
828	/** Handler function. */
829	PFNDBGCCMD pfnHandler;
830	/** Command syntax. */
831	const char *pszSyntax;
832	/** Command description. */
833	const char *pszDescription;
834	} DBGCCMD;
835
836	/** DBGCCMD Flags.
837	* @{
838	*/
839	/** The description is of a pure function which cannot be invoked
840	* as a command from the commandline. */
841	#define DBGCCMD_FLAGS_FUNCTION 1
842	/** @} */
843
844
845
846	/** Pointer to a DBGC backend. */
847	typedef struct DBGCBACK *PDBGCBACK;
848
849	/**
850	* Checks if there is input.
851	*
852	* @returns true if there is input ready.
853	* @returns false if there not input ready.
854	* @param pBack Pointer to the backend structure supplied by
855	* the backend. The backend can use this to find
856	* it's instance data.
857	* @param cMillies Number of milliseconds to wait on input data.
858	*/
859	typedef DECLCALLBACK(bool) FNDBGCBACKINPUT(PDBGCBACK pBack, uint32_t cMillies);
860	/** Pointer to a FNDBGCBACKINPUT() callback. */
861	typedef FNDBGCBACKINPUT *PFNDBGCBACKINPUT;
862
863	/**
864	* Read input.
865	*
866	* @returns VBox status code.
867	* @param pBack Pointer to the backend structure supplied by
868	* the backend. The backend can use this to find
869	* it's instance data.
870	* @param pvBuf Where to put the bytes we read.
871	* @param cbBuf Maximum nymber of bytes to read.
872	* @param pcbRead Where to store the number of bytes actually read.
873	* If NULL the entire buffer must be filled for a
874	* successful return.
875	*/
876	typedef DECLCALLBACK(int) FNDBGCBACKREAD(PDBGCBACK pBack, void pvBuf, size_t cbBuf, size_t pcbRead);
877	/** Pointer to a FNDBGCBACKREAD() callback. */
878	typedef FNDBGCBACKREAD *PFNDBGCBACKREAD;
879
880	/**
881	* Write (output).
882	*
883	* @returns VBox status code.
884	* @param pBack Pointer to the backend structure supplied by
885	* the backend. The backend can use this to find
886	* it's instance data.
887	* @param pvBuf What to write.
888	* @param cbBuf Number of bytes to write.
889	* @param pcbWritten Where to store the number of bytes actually written.
890	* If NULL the entire buffer must be successfully written.
891	*/
892	typedef DECLCALLBACK(int) FNDBGCBACKWRITE(PDBGCBACK pBack, const void pvBuf, size_t cbBuf, size_t pcbWritten);
893	/** Pointer to a FNDBGCBACKWRITE() callback. */
894	typedef FNDBGCBACKWRITE *PFNDBGCBACKWRITE;
895
896	/**
897	* Ready / busy notification.
898	*
899	* @param pBack Pointer to the backend structure supplied by
900	* the backend. The backend can use this to find
901	* it's instance data.
902	* @param fReady Whether it's ready (true) or busy (false).
903	*/
904	typedef DECLCALLBACK(void) FNDBGCBACKSETREADY(PDBGCBACK pBack, bool fReady);
905	/** Pointer to a FNDBGCBACKSETREADY() callback. */
906	typedef FNDBGCBACKSETREADY *PFNDBGCBACKSETREADY;
907
908
909	/**
910	* The communication backend provides the console with a number of callbacks
911	* which can be used
912	*/
913	typedef struct DBGCBACK
914	{
915	/** Check for input. */
916	PFNDBGCBACKINPUT pfnInput;
917	/** Read input. */
918	PFNDBGCBACKREAD pfnRead;
919	/** Write output. */
920	PFNDBGCBACKWRITE pfnWrite;
921	/** Ready / busy notification. */
922	PFNDBGCBACKSETREADY pfnSetReady;
923	} DBGCBACK;
924
925
926	/**
927	* Make a console instance.
928	*
929	* This will not return until either an 'exit' command is issued or a error code
930	* indicating connection loss is encountered.
931	*
932	* @returns VINF_SUCCESS if console termination caused by the 'exit' command.
933	* @returns The VBox status code causing the console termination.
934	*
935	* @param pVM VM Handle.
936	* @param pBack Pointer to the backend structure. This must contain
937	* a full set of function pointers to service the console.
938	* @param fFlags Reserved, must be zero.
939	* @remark A forced termination of the console is easiest done by forcing the
940	* callbacks to return fatal failures.
941	*/
942	DBGDECL(int) DBGCCreate(PVM pVM, PDBGCBACK pBack, unsigned fFlags);
943
944
945	/**
946	* Register one or more external commands.
947	*
948	* @returns VBox status.
949	* @param paCommands Pointer to an array of command descriptors.
950	* The commands must be unique. It's not possible
951	* to register the same commands more than once.
952	* @param cCommands Number of commands.
953	*/
954	DBGDECL(int) DBGCRegisterCommands(PCDBGCCMD paCommands, unsigned cCommands);
955
956
957	/**
958	* Deregister one or more external commands previously registered by
959	* DBGCRegisterCommands().
960	*
961	* @returns VBox status.
962	* @param paCommands Pointer to an array of command descriptors
963	* as given to DBGCRegisterCommands().
964	* @param cCommands Number of commands.
965	*/
966	DBGDECL(int) DBGCDeregisterCommands(PCDBGCCMD paCommands, unsigned cCommands);
967
968
969	/**
970	* Spawns a new thread with a TCP based debugging console service.
971	*
972	* @returns VBox status.
973	* @param pVM VM handle.
974	* @param ppvData Where to store the pointer to instance data.
975	*/
976	DBGDECL(int) DBGCTcpCreate(PVM pVM, void **ppvUser);
977
978	/**
979	* Terminates any running TCP base debugger console service.
980	*
981	* @returns VBox status.
982	* @param pVM VM handle.
983	* @param pvData Instance data set by DBGCTcpCreate().
984	*/
985	DBGDECL(int) DBGCTcpTerminate(PVM pVM, void *pvData);
986
987
988	/** @defgroup grp_dbgc_plug_in The DBGC Plug-in Interface
989	* @{
990	*/
991
992	/** The plug-in module name prefix. */
993	#define DBGC_PLUG_IN_PREFIX "DBGCPlugIn"
994
995	/** The name of the plug-in entry point (FNDBGCPLUGIN) */
996	#define DBGC_PLUG_IN_ENTRYPOINT "DBGCPlugInEntry"
997
998	/**
999	* DBGC plug-in operations.
1000	*/
1001	typedef enum DBGCPLUGINOP
1002	{
1003	/** The usual invalid first value. */
1004	DBGCPLUGINOP_INVALID,
1005	/** Initialize the plug-in, register all the stuff.
1006	* The plug-in will be unloaded on failure.
1007	* uArg: The VirtualBox version (major+minor). */
1008	DBGCPLUGINOP_INIT,
1009	/** Terminate the plug-ing, deregister all the stuff.
1010	* The plug-in will be unloaded after this call regardless of the return
1011	* code. */
1012	DBGCPLUGINOP_TERM,
1013	/** The usual 32-bit hack. */
1014	DBGCPLUGINOP_32BIT_HACK = 0x7fffffff
1015	} DBGCPLUGINOP;
1016
1017	/**
1018	* DBGC plug-in main entry point.
1019	*
1020	* @returns VBox status code.
1021	*
1022	* @param enmOperation The operation.
1023	* @param pVM The VM handle. This may be NULL.
1024	* @param uArg Extra argument.
1025	*/
1026	typedef DECLCALLBACK(int) FNDBGCPLUGIN(DBGCPLUGINOP enmOperation, PVM pVM, uintptr_t uArg);
1027	/** Pointer to a FNDBGCPLUGIN. */
1028	typedef FNDBGCPLUGIN *PFNDBGCPLUGIN;
1029
1030	/** @copydoc FNDBGCPLUGIN */
1031	DECLEXPORT(int) DBGCPlugInEntry(DBGCPLUGINOP enmOperation, PVM pVM, uintptr_t uArg);
1032
1033	/** @} */
1034
1035
1036	RT_C_DECLS_END
1037
1038	#endif

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source: vbox/trunk/include/VBox/dbg.h@ 35687

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