DBGCInternal.h@ 5881

Last change on this file since 5881 was 5731, checked in by vboxsync, 17 years ago
Implemented some search commands in the debugger.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 14.1 KB

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1	/** $Id: DBGCInternal.h 5731 2007-11-13 22:42:00Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, Internal Header File.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 innotek GmbH
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 as published by the Free Software Foundation,
13	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14	* distribution. VirtualBox OSE is distributed in the hope that it will
15	* be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	#ifndef ___DBGCInternal_h
19	#define ___DBGCInternal_h
20
21
22	/*******************************************************************************
23	* Header Files *
24	*******************************************************************************/
25	#include <VBox/dbg.h>
26
27
28	/*******************************************************************************
29	* Defined Constants And Macros *
30	*******************************************************************************/
31	/* to err.h! */
32	#define VERR_DBGC_QUIT (-11999)
33	#define VERR_PARSE_FIRST (-11000)
34	#define VERR_PARSE_TOO_FEW_ARGUMENTS (VERR_PARSE_FIRST - 0)
35	#define VERR_PARSE_TOO_MANY_ARGUMENTS (VERR_PARSE_FIRST - 1)
36	#define VERR_PARSE_ARGUMENT_OVERFLOW (VERR_PARSE_FIRST - 2)
37	#define VERR_PARSE_ARGUMENT_TYPE_MISMATCH (VERR_PARSE_FIRST - 3)
38	#define VERR_PARSE_NO_RANGE_ALLOWED (VERR_PARSE_FIRST - 4)
39	#define VERR_PARSE_UNBALANCED_QUOTE (VERR_PARSE_FIRST - 5)
40	#define VERR_PARSE_UNBALANCED_PARENTHESIS (VERR_PARSE_FIRST - 6)
41	#define VERR_PARSE_EMPTY_ARGUMENT (VERR_PARSE_FIRST - 7)
42	#define VERR_PARSE_UNEXPECTED_OPERATOR (VERR_PARSE_FIRST - 8)
43	#define VERR_PARSE_INVALID_NUMBER (VERR_PARSE_FIRST - 9)
44	#define VERR_PARSE_NUMBER_TOO_BIG (VERR_PARSE_FIRST - 10)
45	#define VERR_PARSE_INVALID_OPERATION (VERR_PARSE_FIRST - 11)
46	#define VERR_PARSE_FUNCTION_NOT_FOUND (VERR_PARSE_FIRST - 12)
47	#define VERR_PARSE_NOT_A_FUNCTION (VERR_PARSE_FIRST - 13)
48	#define VERR_PARSE_NO_MEMORY (VERR_PARSE_FIRST - 14)
49	#define VERR_PARSE_INCORRECT_ARG_TYPE (VERR_PARSE_FIRST - 15)
50	#define VERR_PARSE_VARIABLE_NOT_FOUND (VERR_PARSE_FIRST - 16)
51	#define VERR_PARSE_CONVERSION_FAILED (VERR_PARSE_FIRST - 17)
52	#define VERR_PARSE_NOT_IMPLEMENTED (VERR_PARSE_FIRST - 18)
53	#define VERR_PARSE_BAD_RESULT_TYPE (VERR_PARSE_FIRST - 19)
54	#define VERR_PARSE_WRITEONLY_SYMBOL (VERR_PARSE_FIRST - 20)
55	#define VERR_PARSE_NO_ARGUMENT_MATCH (VERR_PARSE_FIRST - 21)
56	#define VINF_PARSE_COMMAND_NOT_FOUND (VERR_PARSE_FIRST - 22)
57	#define VINF_PARSE_INVALD_COMMAND_NAME (VERR_PARSE_FIRST - 23)
58	#define VERR_PARSE_LAST (VERR_PARSE_FIRST - 30)
59
60	#define VWRN_DBGC_CMD_PENDING 12000
61	#define VWRN_DBGC_ALREADY_REGISTERED 12001
62	#define VERR_DBGC_COMMANDS_NOT_REGISTERED (-12002)
63	#define VERR_DBGC_BP_NOT_FOUND (-12003)
64	#define VERR_DBGC_BP_EXISTS (-12004)
65	#define VINF_DBGC_BP_NO_COMMAND 12005
66	#define VERR_DBGC_COMMAND_FAILED (-12006)
67
68
69	/*******************************************************************************
70	* Structures and Typedefs *
71	*******************************************************************************/
72
73	/**
74	* Debugger console per breakpoint data.
75	*/
76	typedef struct DBGCBP
77	{
78	/** Pointer to the next breakpoint in the list. */
79	struct DBGCBP *pNext;
80	/** The breakpoint identifier. */
81	RTUINT iBp;
82	/** The size of the command. */
83	size_t cchCmd;
84	/** The command to execute when the breakpoint is hit. */
85	char szCmd[1];
86	} DBGCBP;
87	/** Pointer to a breakpoint. */
88	typedef DBGCBP *PDBGCBP;
89
90
91	/**
92	* Named variable.
93	*
94	* Always allocated from heap in one signle block.
95	*/
96	typedef struct DBGCNAMEDVAR
97	{
98	/** The variable. */
99	DBGCVAR Var;
100	/** It's name. */
101	char szName[1];
102	} DBGCNAMEDVAR;
103	/** Pointer to named variable. */
104	typedef DBGCNAMEDVAR *PDBGCNAMEDVAR;
105
106
107	/**
108	* Debugger console status
109	*/
110	typedef enum DBGCSTATUS
111	{
112	/** Normal status, .*/
113	DBGC_HALTED
114
115	} DBGCSTATUS;
116
117
118	/**
119	* Debugger console instance data.
120	*/
121	typedef struct DBGC
122	{
123	/** Command helpers. */
124	DBGCCMDHLP CmdHlp;
125	/** Pointer to backend callback structure. */
126	PDBGCBACK pBack;
127
128	/** Pointer to the current VM. */
129	PVM pVM;
130	/** The current debugger emulation. */
131	const char *pszEmulation;
132	/** Pointer to the command and functions for the current debugger emulation. */
133	PCDBGCCMD paEmulationCmds;
134	/** The number of commands paEmulationCmds points to. */
135	unsigned cEmulationCmds;
136	/** Log indicator. (If set we're writing the log to the console.) */
137	bool fLog;
138
139	/** Indicates whether we're in guest (true) or hypervisor (false) register context. */
140	bool fRegCtxGuest;
141	/** Indicates whether the register are terse or sparse. */
142	bool fRegTerse;
143
144	/** Current dissassembler position. */
145	DBGCVAR DisasmPos;
146	/** Current source position. (flat GC) */
147	DBGCVAR SourcePos;
148	/** Current memory dump position. */
149	DBGCVAR DumpPos;
150	/** Size of the previous dump element. */
151	unsigned cbDumpElement;
152
153	/** Number of variables in papVars. */
154	unsigned cVars;
155	/** Array of global variables.
156	* Global variables can be referenced using the $ operator and set
157	* and unset using command with those names. */
158	PDBGCNAMEDVAR *papVars;
159
160	/** The list of breakpoints. (singly linked) */
161	PDBGCBP pFirstBp;
162
163	/** Save search pattern. */
164	uint8_t abSearch[256];
165	/** The length of the search pattern. */
166	uint32_t cbSearch;
167	/** The search unit */
168	uint32_t cbSearchUnit;
169	/** The max hits. */
170	uint64_t cMaxSearchHits;
171	/** The address to resume searching from. */
172	DBGFADDRESS SearchAddr;
173	/** What's left of the original search range. */
174	RTGCUINTPTR cbSearchRange;
175
176	/** @name Parsing and Execution
177	* @{ */
178
179	/** Input buffer. */
180	char achInput[2048];
181	/** To ease debugging. */
182	unsigned uInputZero;
183	/** Write index in the input buffer. */
184	unsigned iWrite;
185	/** Read index in the input buffer. */
186	unsigned iRead;
187	/** The number of lines in the buffer. */
188	unsigned cInputLines;
189	/** Indicates that we have a buffer overflow condition.
190	* This means that input is ignored up to the next newline. */
191	bool fInputOverflow;
192	/** Indicates whether or we're ready for input. */
193	bool fReady;
194
195	/** Scratch buffer position. */
196	char *pszScratch;
197	/** Scratch buffer. */
198	char achScratch[16384];
199	/** Argument array position. */
200	unsigned iArg;
201	/** Array of argument variables. */
202	DBGCVAR aArgs[100];
203
204	/** rc from the last dbgcHlpPrintfV(). */
205	int rcOutput;
206	/** rc from the last command. */
207	int rcCmd;
208	/** @} */
209	} DBGC;
210	/** Pointer to debugger console instance data. */
211	typedef DBGC *PDBGC;
212
213	/** Converts a Command Helper pointer to a pointer to DBGC instance data. */
214	#define DBGC_CMDHLP2DBGC(pCmdHlp) ( (PDBGC)((uintptr_t)(pCmdHlp) - RT_OFFSETOF(DBGC, CmdHlp)) )
215
216
217	/**
218	* Chunk of external commands.
219	*/
220	typedef struct DBGCEXTCMDS
221	{
222	/** Number of commands descriptors. */
223	unsigned cCmds;
224	/** Pointer to array of command descriptors. */
225	PCDBGCCMD paCmds;
226	/** Pointer to the next chunk. */
227	struct DBGCEXTCMDS *pNext;
228	} DBGCEXTCMDS;
229	/** Pointer to chunk of external commands. */
230	typedef DBGCEXTCMDS *PDBGCEXTCMDS;
231
232
233
234	/**
235	* Unary operator handler function.
236	*
237	* @returns 0 on success.
238	* @returns VBox evaluation / parsing error code on failure.
239	* The caller does the bitching.
240	* @param pDbgc Debugger console instance data.
241	* @param pArg The argument.
242	* @param pResult Where to store the result.
243	*/
244	typedef DECLCALLBACK(int) FNDBGCOPUNARY(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult);
245	/** Pointer to a unary operator handler function. */
246	typedef FNDBGCOPUNARY *PFNDBGCOPUNARY;
247
248
249	/**
250	* Binary operator handler function.
251	*
252	* @returns 0 on success.
253	* @returns VBox evaluation / parsing error code on failure.
254	* The caller does the bitching.
255	* @param pDbgc Debugger console instance data.
256	* @param pArg1 The first argument.
257	* @param pArg2 The 2nd argument.
258	* @param pResult Where to store the result.
259	*/
260	typedef DECLCALLBACK(int) FNDBGCOPBINARY(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
261	/** Pointer to a binary operator handler function. */
262	typedef FNDBGCOPBINARY *PFNDBGCOPBINARY;
263
264
265	/**
266	* Operator descriptor.
267	*/
268	typedef struct DBGCOP
269	{
270	/** Operator mnemonic. */
271	char szName[4];
272	/** Length of name. */
273	const unsigned cchName;
274	/** Whether or not this is a binary operator.
275	* Unary operators are evaluated right-to-left while binary are left-to-right. */
276	bool fBinary;
277	/** Precedence level. */
278	unsigned iPrecedence;
279	/** Unary operator handler. */
280	PFNDBGCOPUNARY pfnHandlerUnary;
281	/** Binary operator handler. */
282	PFNDBGCOPBINARY pfnHandlerBinary;
283	/** Operator description. */
284	const char *pszDescription;
285	} DBGCOP;
286	/** Pointer to an operator descriptor. */
287	typedef DBGCOP *PDBGCOP;
288	/** Pointer to a const operator descriptor. */
289	typedef const DBGCOP *PCDBGCOP;
290
291
292
293	/** Pointer to symbol descriptor. */
294	typedef struct DBGCSYM *PDBGCSYM;
295	/** Pointer to const symbol descriptor. */
296	typedef const struct DBGCSYM *PCDBGCSYM;
297
298	/**
299	* Get builtin symbol.
300	*
301	* @returns 0 on success.
302	* @returns VBox evaluation / parsing error code on failure.
303	* The caller does the bitching.
304	* @param pSymDesc Pointer to the symbol descriptor.
305	* @param pCmdHlp Pointer to the command callback structure.
306	* @param enmType The result type.
307	* @param pResult Where to store the result.
308	*/
309	typedef DECLCALLBACK(int) FNDBGCSYMGET(PCDBGCSYM pSymDesc, PDBGCCMDHLP pCmdHlp, DBGCVARTYPE enmType, PDBGCVAR pResult);
310	/** Pointer to get function for a builtin symbol. */
311	typedef FNDBGCSYMGET *PFNDBGCSYMGET;
312
313	/**
314	* Set builtin symbol.
315	*
316	* @returns 0 on success.
317	* @returns VBox evaluation / parsing error code on failure.
318	* The caller does the bitching.
319	* @param pSymDesc Pointer to the symbol descriptor.
320	* @param pCmdHlp Pointer to the command callback structure.
321	* @param pValue The value to assign the symbol.
322	*/
323	typedef DECLCALLBACK(int) FNDBGCSYMSET(PCDBGCSYM pSymDesc, PDBGCCMDHLP pCmdHlp, PCDBGCVAR pValue);
324	/** Pointer to set function for a builtin symbol. */
325	typedef FNDBGCSYMSET *PFNDBGCSYMSET;
326
327
328	/**
329	* Symbol description (for builtin symbols).
330	*/
331	typedef struct DBGCSYM
332	{
333	/** Symbol name. */
334	const char *pszName;
335	/** Get function. */
336	PFNDBGCSYMGET pfnGet;
337	/** Set function. (NULL if readonly) */
338	PFNDBGCSYMSET pfnSet;
339	/** User data. */
340	unsigned uUser;
341	} DBGCSYM;
342
343
344	/*******************************************************************************
345	* Internal Functions *
346	*******************************************************************************/
347	int dbgcBpAdd(PDBGC pDbgc, RTUINT iBp, const char *pszCmd);
348	int dbgcBpUpdate(PDBGC pDbgc, RTUINT iBp, const char *pszCmd);
349	int dbgcBpDelete(PDBGC pDbgc, RTUINT iBp);
350	PDBGCBP dbgcBpGet(PDBGC pDbgc, RTUINT iBp);
351	int dbgcBpExec(PDBGC pDbgc, RTUINT iBp);
352
353	void dbgcVarInit(PDBGCVAR pVar);
354	void dbgcVarSetGCFlat(PDBGCVAR pVar, RTGCPTR GCFlat);
355	void dbgcVarSetGCFlatByteRange(PDBGCVAR pVar, RTGCPTR GCFlat, uint64_t cb);
356	void dbgcVarSetU64(PDBGCVAR pVar, uint64_t u64);
357	void dbgcVarSetVar(PDBGCVAR pVar, PCDBGCVAR pVar2);
358	void dbgcVarSetDbgfAddr(PDBGCVAR pVar, PCDBGFADDRESS pAddress);
359	void dbgcVarSetNoRange(PDBGCVAR pVar);
360	void dbgcVarSetByteRange(PDBGCVAR pVar, uint64_t cb);
361	int dbgcVarToDbgfAddr(PDBGC pDbgc, PCDBGCVAR pVar, PDBGFADDRESS pAddress);
362
363	int dbgcEvalSub(PDBGC pDbgc, char *pszExpr, size_t cchExpr, PDBGCVAR pResult);
364	int dbgcProcessCommand(PDBGC pDbgc, char *pszCmd, size_t cchCmd, bool fNoExecute);
365
366	int dbgcSymbolGet(PDBGC pDbgc, const char *pszSymbol, DBGCVARTYPE enmType, PDBGCVAR pResult);
367	PCDBGCSYM dbgcLookupRegisterSymbol(PDBGC pDbgc, const char *pszSymbol);
368	PCDBGCOP dbgcOperatorLookup(PDBGC pDbgc, const char *pszExpr, bool fPreferBinary, char chPrev);
369	PCDBGCCMD dbgcRoutineLookup(PDBGC pDbgc, const char *pachName, size_t cchName, bool fExternal);
370
371	DECLCALLBACK(int) dbgcOpAddrFlat(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult);
372	DECLCALLBACK(int) dbgcOpAddrHost(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult);
373	DECLCALLBACK(int) dbgcOpAddrPhys(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult);
374	DECLCALLBACK(int) dbgcOpAddrHostPhys(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult);
375
376	void dbgcInitCmdHlp(PDBGC pDbgc);
377
378	/* For tstDBGCParser: */
379	int dbgcCreate(PDBGC *ppDbgc, PDBGCBACK pBack, unsigned fFlags);
380	int dbgcRun(PDBGC pDbgc);
381	int dbgcProcessInput(PDBGC pDbgc, bool fNoExecute);
382	void dbgcDestroy(PDBGC pDbgc);
383
384
385	/*******************************************************************************
386	* Global Variables *
387	*******************************************************************************/
388	extern const DBGCCMD g_aCmds[];
389	extern const unsigned g_cCmds;
390	extern const DBGCCMD g_aCmdsCodeView[];
391	extern const unsigned g_cCmdsCodeView;
392	extern const DBGCOP g_aOps[];
393	extern const unsigned g_cOps;
394
395
396	#endif

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source: vbox/trunk/src/VBox/Debugger/DBGCInternal.h@ 5881

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