DBGCInternal.h@ 12466

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1	/** $Id: DBGCInternal.h 12466 2008-09-15 15:22:01Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, Internal Header File.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
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	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22	#ifndef ___Debugger_DBGCInternal_h
23	#define ___Debugger_DBGCInternal_h
24
25
26	/*******************************************************************************
27	* Header Files *
28	*******************************************************************************/
29	#include <VBox/dbg.h>
30
31
32	/*******************************************************************************
33	* Defined Constants And Macros *
34	*******************************************************************************/
35	/* to err.h! */
36	#define VERR_DBGC_QUIT (-11999)
37	#define VERR_PARSE_FIRST (-11000)
38	#define VERR_PARSE_TOO_FEW_ARGUMENTS (VERR_PARSE_FIRST - 0)
39	#define VERR_PARSE_TOO_MANY_ARGUMENTS (VERR_PARSE_FIRST - 1)
40	#define VERR_PARSE_ARGUMENT_OVERFLOW (VERR_PARSE_FIRST - 2)
41	#define VERR_PARSE_ARGUMENT_TYPE_MISMATCH (VERR_PARSE_FIRST - 3)
42	#define VERR_PARSE_NO_RANGE_ALLOWED (VERR_PARSE_FIRST - 4)
43	#define VERR_PARSE_UNBALANCED_QUOTE (VERR_PARSE_FIRST - 5)
44	#define VERR_PARSE_UNBALANCED_PARENTHESIS (VERR_PARSE_FIRST - 6)
45	#define VERR_PARSE_EMPTY_ARGUMENT (VERR_PARSE_FIRST - 7)
46	#define VERR_PARSE_UNEXPECTED_OPERATOR (VERR_PARSE_FIRST - 8)
47	#define VERR_PARSE_INVALID_NUMBER (VERR_PARSE_FIRST - 9)
48	#define VERR_PARSE_NUMBER_TOO_BIG (VERR_PARSE_FIRST - 10)
49	#define VERR_PARSE_INVALID_OPERATION (VERR_PARSE_FIRST - 11)
50	#define VERR_PARSE_FUNCTION_NOT_FOUND (VERR_PARSE_FIRST - 12)
51	#define VERR_PARSE_NOT_A_FUNCTION (VERR_PARSE_FIRST - 13)
52	#define VERR_PARSE_NO_MEMORY (VERR_PARSE_FIRST - 14)
53	#define VERR_PARSE_INCORRECT_ARG_TYPE (VERR_PARSE_FIRST - 15)
54	#define VERR_PARSE_VARIABLE_NOT_FOUND (VERR_PARSE_FIRST - 16)
55	#define VERR_PARSE_CONVERSION_FAILED (VERR_PARSE_FIRST - 17)
56	#define VERR_PARSE_NOT_IMPLEMENTED (VERR_PARSE_FIRST - 18)
57	#define VERR_PARSE_BAD_RESULT_TYPE (VERR_PARSE_FIRST - 19)
58	#define VERR_PARSE_WRITEONLY_SYMBOL (VERR_PARSE_FIRST - 20)
59	#define VERR_PARSE_NO_ARGUMENT_MATCH (VERR_PARSE_FIRST - 21)
60	#define VINF_PARSE_COMMAND_NOT_FOUND (VERR_PARSE_FIRST - 22)
61	#define VINF_PARSE_INVALD_COMMAND_NAME (VERR_PARSE_FIRST - 23)
62	#define VERR_PARSE_LAST (VERR_PARSE_FIRST - 30)
63
64	#define VWRN_DBGC_CMD_PENDING 12000
65	#define VWRN_DBGC_ALREADY_REGISTERED 12001
66	#define VERR_DBGC_COMMANDS_NOT_REGISTERED (-12002)
67	#define VERR_DBGC_BP_NOT_FOUND (-12003)
68	#define VERR_DBGC_BP_EXISTS (-12004)
69	#define VINF_DBGC_BP_NO_COMMAND 12005
70	#define VERR_DBGC_COMMAND_FAILED (-12006)
71
72
73	/*******************************************************************************
74	* Structures and Typedefs *
75	*******************************************************************************/
76
77	/**
78	* Debugger console per breakpoint data.
79	*/
80	typedef struct DBGCBP
81	{
82	/** Pointer to the next breakpoint in the list. */
83	struct DBGCBP *pNext;
84	/** The breakpoint identifier. */
85	RTUINT iBp;
86	/** The size of the command. */
87	size_t cchCmd;
88	/** The command to execute when the breakpoint is hit. */
89	char szCmd[1];
90	} DBGCBP;
91	/** Pointer to a breakpoint. */
92	typedef DBGCBP *PDBGCBP;
93
94
95	/**
96	* Named variable.
97	*
98	* Always allocated from heap in one signle block.
99	*/
100	typedef struct DBGCNAMEDVAR
101	{
102	/** The variable. */
103	DBGCVAR Var;
104	/** It's name. */
105	char szName[1];
106	} DBGCNAMEDVAR;
107	/** Pointer to named variable. */
108	typedef DBGCNAMEDVAR *PDBGCNAMEDVAR;
109
110
111	/**
112	* Debugger console status
113	*/
114	typedef enum DBGCSTATUS
115	{
116	/** Normal status, .*/
117	DBGC_HALTED
118
119	} DBGCSTATUS;
120
121
122	/**
123	* Debugger console instance data.
124	*/
125	typedef struct DBGC
126	{
127	/** Command helpers. */
128	DBGCCMDHLP CmdHlp;
129	/** Pointer to backend callback structure. */
130	PDBGCBACK pBack;
131
132	/** Pointer to the current VM. */
133	PVM pVM;
134	/** The current debugger emulation. */
135	const char *pszEmulation;
136	/** Pointer to the command and functions for the current debugger emulation. */
137	PCDBGCCMD paEmulationCmds;
138	/** The number of commands paEmulationCmds points to. */
139	unsigned cEmulationCmds;
140	/** Log indicator. (If set we're writing the log to the console.) */
141	bool fLog;
142
143	/** Indicates whether we're in guest (true) or hypervisor (false) register context. */
144	bool fRegCtxGuest;
145	/** Indicates whether the register are terse or sparse. */
146	bool fRegTerse;
147
148	/** Current dissassembler position. */
149	DBGCVAR DisasmPos;
150	/** Current source position. (flat GC) */
151	DBGCVAR SourcePos;
152	/** Current memory dump position. */
153	DBGCVAR DumpPos;
154	/** Size of the previous dump element. */
155	unsigned cbDumpElement;
156
157	/** Number of variables in papVars. */
158	unsigned cVars;
159	/** Array of global variables.
160	* Global variables can be referenced using the $ operator and set
161	* and unset using command with those names. */
162	PDBGCNAMEDVAR *papVars;
163
164	/** The list of breakpoints. (singly linked) */
165	PDBGCBP pFirstBp;
166
167	/** Save search pattern. */
168	uint8_t abSearch[256];
169	/** The length of the search pattern. */
170	uint32_t cbSearch;
171	/** The search unit */
172	uint32_t cbSearchUnit;
173	/** The max hits. */
174	uint64_t cMaxSearchHits;
175	/** The address to resume searching from. */
176	DBGFADDRESS SearchAddr;
177	/** What's left of the original search range. */
178	RTGCUINTPTR cbSearchRange;
179
180	/** @name Parsing and Execution
181	* @{ */
182
183	/** Input buffer. */
184	char achInput[2048];
185	/** To ease debugging. */
186	unsigned uInputZero;
187	/** Write index in the input buffer. */
188	unsigned iWrite;
189	/** Read index in the input buffer. */
190	unsigned iRead;
191	/** The number of lines in the buffer. */
192	unsigned cInputLines;
193	/** Indicates that we have a buffer overflow condition.
194	* This means that input is ignored up to the next newline. */
195	bool fInputOverflow;
196	/** Indicates whether or we're ready for input. */
197	bool fReady;
198
199	/** Scratch buffer position. */
200	char *pszScratch;
201	/** Scratch buffer. */
202	char achScratch[16384];
203	/** Argument array position. */
204	unsigned iArg;
205	/** Array of argument variables. */
206	DBGCVAR aArgs[100];
207
208	/** rc from the last dbgcHlpPrintfV(). */
209	int rcOutput;
210	/** rc from the last command. */
211	int rcCmd;
212	/** @} */
213	} DBGC;
214	/** Pointer to debugger console instance data. */
215	typedef DBGC *PDBGC;
216
217	/** Converts a Command Helper pointer to a pointer to DBGC instance data. */
218	#define DBGC_CMDHLP2DBGC(pCmdHlp) ( (PDBGC)((uintptr_t)(pCmdHlp) - RT_OFFSETOF(DBGC, CmdHlp)) )
219
220
221	/**
222	* Chunk of external commands.
223	*/
224	typedef struct DBGCEXTCMDS
225	{
226	/** Number of commands descriptors. */
227	unsigned cCmds;
228	/** Pointer to array of command descriptors. */
229	PCDBGCCMD paCmds;
230	/** Pointer to the next chunk. */
231	struct DBGCEXTCMDS *pNext;
232	} DBGCEXTCMDS;
233	/** Pointer to chunk of external commands. */
234	typedef DBGCEXTCMDS *PDBGCEXTCMDS;
235
236
237
238	/**
239	* Unary operator handler function.
240	*
241	* @returns 0 on success.
242	* @returns VBox evaluation / parsing error code on failure.
243	* The caller does the bitching.
244	* @param pDbgc Debugger console instance data.
245	* @param pArg The argument.
246	* @param pResult Where to store the result.
247	*/
248	typedef DECLCALLBACK(int) FNDBGCOPUNARY(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult);
249	/** Pointer to a unary operator handler function. */
250	typedef FNDBGCOPUNARY *PFNDBGCOPUNARY;
251
252
253	/**
254	* Binary operator handler function.
255	*
256	* @returns 0 on success.
257	* @returns VBox evaluation / parsing error code on failure.
258	* The caller does the bitching.
259	* @param pDbgc Debugger console instance data.
260	* @param pArg1 The first argument.
261	* @param pArg2 The 2nd argument.
262	* @param pResult Where to store the result.
263	*/
264	typedef DECLCALLBACK(int) FNDBGCOPBINARY(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
265	/** Pointer to a binary operator handler function. */
266	typedef FNDBGCOPBINARY *PFNDBGCOPBINARY;
267
268
269	/**
270	* Operator descriptor.
271	*/
272	typedef struct DBGCOP
273	{
274	/** Operator mnemonic. */
275	char szName[4];
276	/** Length of name. */
277	const unsigned cchName;
278	/** Whether or not this is a binary operator.
279	* Unary operators are evaluated right-to-left while binary are left-to-right. */
280	bool fBinary;
281	/** Precedence level. */
282	unsigned iPrecedence;
283	/** Unary operator handler. */
284	PFNDBGCOPUNARY pfnHandlerUnary;
285	/** Binary operator handler. */
286	PFNDBGCOPBINARY pfnHandlerBinary;
287	/** Operator description. */
288	const char *pszDescription;
289	} DBGCOP;
290	/** Pointer to an operator descriptor. */
291	typedef DBGCOP *PDBGCOP;
292	/** Pointer to a const operator descriptor. */
293	typedef const DBGCOP *PCDBGCOP;
294
295
296
297	/** Pointer to symbol descriptor. */
298	typedef struct DBGCSYM *PDBGCSYM;
299	/** Pointer to const symbol descriptor. */
300	typedef const struct DBGCSYM *PCDBGCSYM;
301
302	/**
303	* Get builtin symbol.
304	*
305	* @returns 0 on success.
306	* @returns VBox evaluation / parsing error code on failure.
307	* The caller does the bitching.
308	* @param pSymDesc Pointer to the symbol descriptor.
309	* @param pCmdHlp Pointer to the command callback structure.
310	* @param enmType The result type.
311	* @param pResult Where to store the result.
312	*/
313	typedef DECLCALLBACK(int) FNDBGCSYMGET(PCDBGCSYM pSymDesc, PDBGCCMDHLP pCmdHlp, DBGCVARTYPE enmType, PDBGCVAR pResult);
314	/** Pointer to get function for a builtin symbol. */
315	typedef FNDBGCSYMGET *PFNDBGCSYMGET;
316
317	/**
318	* Set builtin symbol.
319	*
320	* @returns 0 on success.
321	* @returns VBox evaluation / parsing error code on failure.
322	* The caller does the bitching.
323	* @param pSymDesc Pointer to the symbol descriptor.
324	* @param pCmdHlp Pointer to the command callback structure.
325	* @param pValue The value to assign the symbol.
326	*/
327	typedef DECLCALLBACK(int) FNDBGCSYMSET(PCDBGCSYM pSymDesc, PDBGCCMDHLP pCmdHlp, PCDBGCVAR pValue);
328	/** Pointer to set function for a builtin symbol. */
329	typedef FNDBGCSYMSET *PFNDBGCSYMSET;
330
331
332	/**
333	* Symbol description (for builtin symbols).
334	*/
335	typedef struct DBGCSYM
336	{
337	/** Symbol name. */
338	const char *pszName;
339	/** Get function. */
340	PFNDBGCSYMGET pfnGet;
341	/** Set function. (NULL if readonly) */
342	PFNDBGCSYMSET pfnSet;
343	/** User data. */
344	unsigned uUser;
345	} DBGCSYM;
346
347
348	/*******************************************************************************
349	* Internal Functions *
350	*******************************************************************************/
351	int dbgcBpAdd(PDBGC pDbgc, RTUINT iBp, const char *pszCmd);
352	int dbgcBpUpdate(PDBGC pDbgc, RTUINT iBp, const char *pszCmd);
353	int dbgcBpDelete(PDBGC pDbgc, RTUINT iBp);
354	PDBGCBP dbgcBpGet(PDBGC pDbgc, RTUINT iBp);
355	int dbgcBpExec(PDBGC pDbgc, RTUINT iBp);
356
357	void dbgcVarInit(PDBGCVAR pVar);
358	void dbgcVarSetGCFlat(PDBGCVAR pVar, RTGCPTR GCFlat);
359	void dbgcVarSetGCFlatByteRange(PDBGCVAR pVar, RTGCPTR GCFlat, uint64_t cb);
360	void dbgcVarSetU64(PDBGCVAR pVar, uint64_t u64);
361	void dbgcVarSetVar(PDBGCVAR pVar, PCDBGCVAR pVar2);
362	void dbgcVarSetDbgfAddr(PDBGCVAR pVar, PCDBGFADDRESS pAddress);
363	void dbgcVarSetNoRange(PDBGCVAR pVar);
364	void dbgcVarSetByteRange(PDBGCVAR pVar, uint64_t cb);
365	int dbgcVarToDbgfAddr(PDBGC pDbgc, PCDBGCVAR pVar, PDBGFADDRESS pAddress);
366
367	int dbgcEvalSub(PDBGC pDbgc, char *pszExpr, size_t cchExpr, PDBGCVAR pResult);
368	int dbgcProcessCommand(PDBGC pDbgc, char *pszCmd, size_t cchCmd, bool fNoExecute);
369
370	int dbgcSymbolGet(PDBGC pDbgc, const char *pszSymbol, DBGCVARTYPE enmType, PDBGCVAR pResult);
371	PCDBGCSYM dbgcLookupRegisterSymbol(PDBGC pDbgc, const char *pszSymbol);
372	PCDBGCOP dbgcOperatorLookup(PDBGC pDbgc, const char *pszExpr, bool fPreferBinary, char chPrev);
373	PCDBGCCMD dbgcRoutineLookup(PDBGC pDbgc, const char *pachName, size_t cchName, bool fExternal);
374
375	DECLCALLBACK(int) dbgcOpAddrFlat(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult);
376	DECLCALLBACK(int) dbgcOpAddrHost(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult);
377	DECLCALLBACK(int) dbgcOpAddrPhys(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult);
378	DECLCALLBACK(int) dbgcOpAddrHostPhys(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult);
379
380	void dbgcInitCmdHlp(PDBGC pDbgc);
381
382	/* For tstDBGCParser: */
383	int dbgcCreate(PDBGC *ppDbgc, PDBGCBACK pBack, unsigned fFlags);
384	int dbgcRun(PDBGC pDbgc);
385	int dbgcProcessInput(PDBGC pDbgc, bool fNoExecute);
386	void dbgcDestroy(PDBGC pDbgc);
387
388
389	/*******************************************************************************
390	* Global Variables *
391	*******************************************************************************/
392	extern const DBGCCMD g_aCmds[];
393	extern const unsigned g_cCmds;
394	extern const DBGCCMD g_aCmdsCodeView[];
395	extern const unsigned g_cCmdsCodeView;
396	extern const DBGCOP g_aOps[];
397	extern const unsigned g_cOps;
398
399
400	#endif

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source: vbox/trunk/src/VBox/Debugger/DBGCInternal.h@ 12466

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