DBGCInternal.h@ 58090

Last change on this file since 58090 was 55881, checked in by vboxsync, 10 years ago
DBGF,DBGC: Moved the plug-ins from DBGC to DBGF so we can make use of them via IMachineDebugger.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 14.0 KB

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1	/* $Id: DBGCInternal.h 55881 2015-05-16 01:02:51Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, Internal Header File.
4	*/
5
6	/*
7	* Copyright (C) 2006-2015 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	#ifndef ___Debugger_DBGCInternal_h
20	#define ___Debugger_DBGCInternal_h
21
22
23	/*******************************************************************************
24	* Header Files *
25	*******************************************************************************/
26	#include <VBox/dbg.h>
27	#include <VBox/err.h>
28
29
30	/*******************************************************************************
31	* Structures and Typedefs *
32	*******************************************************************************/
33
34	/**
35	* Debugger console per breakpoint data.
36	*/
37	typedef struct DBGCBP
38	{
39	/** Pointer to the next breakpoint in the list. */
40	struct DBGCBP *pNext;
41	/** The breakpoint identifier. */
42	uint32_t iBp;
43	/** The size of the command. */
44	size_t cchCmd;
45	/** The command to execute when the breakpoint is hit. */
46	char szCmd[1];
47	} DBGCBP;
48	/** Pointer to a breakpoint. */
49	typedef DBGCBP *PDBGCBP;
50
51
52	/**
53	* Named variable.
54	*
55	* Always allocated from heap in one single block.
56	*/
57	typedef struct DBGCNAMEDVAR
58	{
59	/** The variable. */
60	DBGCVAR Var;
61	/** Its name. */
62	char szName[1];
63	} DBGCNAMEDVAR;
64	/** Pointer to named variable. */
65	typedef DBGCNAMEDVAR *PDBGCNAMEDVAR;
66
67
68	/**
69	* Debugger console status
70	*/
71	typedef enum DBGCSTATUS
72	{
73	/** Normal status, .*/
74	DBGC_HALTED
75
76	} DBGCSTATUS;
77
78
79	/**
80	* Debugger console instance data.
81	*/
82	typedef struct DBGC
83	{
84	/** Command helpers. */
85	DBGCCMDHLP CmdHlp;
86	/** Wrappers for DBGF output. */
87	DBGFINFOHLP DbgfOutputHlp;
88	/** Pointer to backend callback structure. */
89	PDBGCBACK pBack;
90
91	/** Pointer to the current VM. */
92	PVM pVM;
93	/** The user mode handle of the current VM. */
94	PUVM pUVM;
95	/** The ID of current virtual CPU. */
96	VMCPUID idCpu;
97	/** The current address space handle. */
98	RTDBGAS hDbgAs;
99	/** The current debugger emulation. */
100	const char *pszEmulation;
101	/** Pointer to the commands for the current debugger emulation. */
102	PCDBGCCMD paEmulationCmds;
103	/** The number of commands paEmulationCmds points to. */
104	unsigned cEmulationCmds;
105	/** Pointer to the functions for the current debugger emulation. */
106	PCDBGCFUNC paEmulationFuncs;
107	/** The number of functions paEmulationFuncs points to. */
108	uint32_t cEmulationFuncs;
109	/** Log indicator. (If set we're writing the log to the console.) */
110	bool fLog;
111
112	/** Indicates whether we're in guest (true) or hypervisor (false) register context. */
113	bool fRegCtxGuest;
114	/** Indicates whether the register are terse or sparse. */
115	bool fRegTerse;
116	/** Counter use to suppress the printing of the headers. */
117	uint8_t cPagingHierarchyDumps;
118
119	/** Current disassembler position. */
120	DBGCVAR DisasmPos;
121	/** The flags that goes with DisasmPos. */
122	uint32_t fDisasm;
123	/** Current source position. (flat GC) */
124	DBGCVAR SourcePos;
125	/** Current memory dump position. */
126	DBGCVAR DumpPos;
127	/** Size of the previous dump element. */
128	unsigned cbDumpElement;
129	/** Points to DisasmPos, SourcePos or DumpPos depending on which was
130	* used last. */
131	PCDBGCVAR pLastPos;
132
133	/** Number of variables in papVars. */
134	unsigned cVars;
135	/** Array of global variables.
136	* Global variables can be referenced using the $ operator and set
137	* and unset using command with those names. */
138	PDBGCNAMEDVAR *papVars;
139
140	/** The list of breakpoints. (singly linked) */
141	PDBGCBP pFirstBp;
142
143	/** Save search pattern. */
144	uint8_t abSearch[256];
145	/** The length of the search pattern. */
146	uint32_t cbSearch;
147	/** The search unit */
148	uint32_t cbSearchUnit;
149	/** The max hits. */
150	uint64_t cMaxSearchHits;
151	/** The address to resume searching from. */
152	DBGFADDRESS SearchAddr;
153	/** What's left of the original search range. */
154	RTGCUINTPTR cbSearchRange;
155
156	/** @name Parsing and Execution
157	* @{ */
158
159	/** Input buffer. */
160	char achInput[2048];
161	/** To ease debugging. */
162	unsigned uInputZero;
163	/** Write index in the input buffer. */
164	unsigned iWrite;
165	/** Read index in the input buffer. */
166	unsigned iRead;
167	/** The number of lines in the buffer. */
168	unsigned cInputLines;
169	/** Indicates that we have a buffer overflow condition.
170	* This means that input is ignored up to the next newline. */
171	bool fInputOverflow;
172	/** Indicates whether or we're ready for input. */
173	bool fReady;
174	/** Scratch buffer position. */
175	char *pszScratch;
176	/** Scratch buffer. */
177	char achScratch[16384];
178	/** Argument array position. */
179	unsigned iArg;
180	/** Array of argument variables. */
181	DBGCVAR aArgs[100];
182
183	/** rc from the last dbgcHlpPrintfV(). */
184	int rcOutput;
185	/** The last character we wrote. */
186	char chLastOutput;
187
188	/** rc from the last command. */
189	int rcCmd;
190	/** @} */
191	} DBGC;
192	/** Pointer to debugger console instance data. */
193	typedef DBGC *PDBGC;
194
195	/** Converts a Command Helper pointer to a pointer to DBGC instance data. */
196	#define DBGC_CMDHLP2DBGC(pCmdHlp) ( (PDBGC)((uintptr_t)(pCmdHlp) - RT_OFFSETOF(DBGC, CmdHlp)) )
197
198
199	/**
200	* Chunk of external commands.
201	*/
202	typedef struct DBGCEXTCMDS
203	{
204	/** Number of commands descriptors. */
205	unsigned cCmds;
206	/** Pointer to array of command descriptors. */
207	PCDBGCCMD paCmds;
208	/** Pointer to the next chunk. */
209	struct DBGCEXTCMDS *pNext;
210	} DBGCEXTCMDS;
211	/** Pointer to chunk of external commands. */
212	typedef DBGCEXTCMDS *PDBGCEXTCMDS;
213
214
215	/**
216	* Chunk of external functions.
217	*/
218	typedef struct DBGCEXTFUNCS
219	{
220	/** Number of functions descriptors. */
221	uint32_t cFuncs;
222	/** Pointer to array of functions descriptors. */
223	PCDBGCFUNC paFuncs;
224	/** Pointer to the next chunk. */
225	struct DBGCEXTFUNCS *pNext;
226	} DBGCEXTFUNCS;
227	/** Pointer to chunk of external functions. */
228	typedef DBGCEXTFUNCS *PDBGCEXTFUNCS;
229
230
231
232	/**
233	* Unary operator handler function.
234	*
235	* @returns 0 on success.
236	* @returns VBox evaluation / parsing error code on failure.
237	* The caller does the bitching.
238	* @param pDbgc Debugger console instance data.
239	* @param pArg The argument.
240	* @param enmCat The desired result category. Can be ignored.
241	* @param pResult Where to store the result.
242	*/
243	typedef DECLCALLBACK(int) FNDBGCOPUNARY(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
244	/** Pointer to a unary operator handler function. */
245	typedef FNDBGCOPUNARY *PFNDBGCOPUNARY;
246
247
248	/**
249	* Binary operator handler function.
250	*
251	* @returns 0 on success.
252	* @returns VBox evaluation / parsing error code on failure.
253	* The caller does the bitching.
254	* @param pDbgc Debugger console instance data.
255	* @param pArg1 The first argument.
256	* @param pArg2 The 2nd argument.
257	* @param pResult Where to store the result.
258	*/
259	typedef DECLCALLBACK(int) FNDBGCOPBINARY(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
260	/** Pointer to a binary operator handler function. */
261	typedef FNDBGCOPBINARY *PFNDBGCOPBINARY;
262
263
264	/**
265	* Operator descriptor.
266	*/
267	typedef struct DBGCOP
268	{
269	/** Operator mnemonic. */
270	char szName[4];
271	/** Length of name. */
272	const unsigned cchName;
273	/** Whether or not this is a binary operator.
274	* Unary operators are evaluated right-to-left while binary are left-to-right. */
275	bool fBinary;
276	/** Precedence level. */
277	unsigned iPrecedence;
278	/** Unary operator handler. */
279	PFNDBGCOPUNARY pfnHandlerUnary;
280	/** Binary operator handler. */
281	PFNDBGCOPBINARY pfnHandlerBinary;
282	/** The category of the 1st argument.
283	* Set to DBGCVAR_CAT_ANY if anything goes. */
284	DBGCVARCAT enmCatArg1;
285	/** The category of the 2nd argument.
286	* Set to DBGCVAR_CAT_ANY if anything goes. */
287	DBGCVARCAT enmCatArg2;
288	/** Operator description. */
289	const char *pszDescription;
290	} DBGCOP;
291	/** Pointer to an operator descriptor. */
292	typedef DBGCOP *PDBGCOP;
293	/** Pointer to a const operator descriptor. */
294	typedef const DBGCOP *PCDBGCOP;
295
296
297
298	/** Pointer to symbol descriptor. */
299	typedef struct DBGCSYM *PDBGCSYM;
300	/** Pointer to const symbol descriptor. */
301	typedef const struct DBGCSYM *PCDBGCSYM;
302
303	/**
304	* Get builtin symbol.
305	*
306	* @returns 0 on success.
307	* @returns VBox evaluation / parsing error code on failure.
308	* The caller does the bitching.
309	* @param pSymDesc Pointer to the symbol descriptor.
310	* @param pCmdHlp Pointer to the command callback structure.
311	* @param enmType The result type.
312	* @param pResult Where to store the result.
313	*/
314	typedef DECLCALLBACK(int) FNDBGCSYMGET(PCDBGCSYM pSymDesc, PDBGCCMDHLP pCmdHlp, DBGCVARTYPE enmType, PDBGCVAR pResult);
315	/** Pointer to get function for a builtin symbol. */
316	typedef FNDBGCSYMGET *PFNDBGCSYMGET;
317
318	/**
319	* Set builtin symbol.
320	*
321	* @returns 0 on success.
322	* @returns VBox evaluation / parsing error code on failure.
323	* The caller does the bitching.
324	* @param pSymDesc Pointer to the symbol descriptor.
325	* @param pCmdHlp Pointer to the command callback structure.
326	* @param pValue The value to assign the symbol.
327	*/
328	typedef DECLCALLBACK(int) FNDBGCSYMSET(PCDBGCSYM pSymDesc, PDBGCCMDHLP pCmdHlp, PCDBGCVAR pValue);
329	/** Pointer to set function for a builtin symbol. */
330	typedef FNDBGCSYMSET *PFNDBGCSYMSET;
331
332
333	/**
334	* Symbol description (for builtin symbols).
335	*/
336	typedef struct DBGCSYM
337	{
338	/** Symbol name. */
339	const char *pszName;
340	/** Get function. */
341	PFNDBGCSYMGET pfnGet;
342	/** Set function. (NULL if readonly) */
343	PFNDBGCSYMSET pfnSet;
344	/** User data. */
345	unsigned uUser;
346	} DBGCSYM;
347
348
349	/*******************************************************************************
350	* Internal Functions *
351	*******************************************************************************/
352	int dbgcBpAdd(PDBGC pDbgc, RTUINT iBp, const char *pszCmd);
353	int dbgcBpUpdate(PDBGC pDbgc, RTUINT iBp, const char *pszCmd);
354	int dbgcBpDelete(PDBGC pDbgc, RTUINT iBp);
355	PDBGCBP dbgcBpGet(PDBGC pDbgc, RTUINT iBp);
356	int dbgcBpExec(PDBGC pDbgc, RTUINT iBp);
357
358	void dbgcEvalInit(void);
359	int dbgcEvalSub(PDBGC pDbgc, char *pszExpr, size_t cchExpr, DBGCVARCAT enmCategory, PDBGCVAR pResult);
360	int dbgcEvalCommand(PDBGC pDbgc, char *pszCmd, size_t cchCmd, bool fNoExecute);
361
362	int dbgcSymbolGet(PDBGC pDbgc, const char *pszSymbol, DBGCVARTYPE enmType, PDBGCVAR pResult);
363	PCDBGCSYM dbgcLookupRegisterSymbol(PDBGC pDbgc, const char *pszSymbol);
364	PCDBGCOP dbgcOperatorLookup(PDBGC pDbgc, const char *pszExpr, bool fPreferBinary, char chPrev);
365	PCDBGCCMD dbgcCommandLookup(PDBGC pDbgc, const char *pachName, size_t cchName, bool fExternal);
366	PCDBGCFUNC dbgcFunctionLookup(PDBGC pDbgc, const char *pachName, size_t cchName, bool fExternal);
367
368	DECLCALLBACK(int) dbgcOpRegister(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
369	DECLCALLBACK(int) dbgcOpAddrFlat(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
370	DECLCALLBACK(int) dbgcOpAddrHost(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
371	DECLCALLBACK(int) dbgcOpAddrPhys(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
372	DECLCALLBACK(int) dbgcOpAddrHostPhys(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
373
374	void dbgcInitCmdHlp(PDBGC pDbgc);
375
376	/* For tstDBGCParser: */
377	int dbgcCreate(PDBGC *ppDbgc, PDBGCBACK pBack, unsigned fFlags);
378	int dbgcRun(PDBGC pDbgc);
379	int dbgcProcessInput(PDBGC pDbgc, bool fNoExecute);
380	void dbgcDestroy(PDBGC pDbgc);
381
382
383	/*******************************************************************************
384	* Global Variables *
385	*******************************************************************************/
386	extern const DBGCCMD g_aDbgcCmds[];
387	extern const uint32_t g_cDbgcCmds;
388	extern const DBGCFUNC g_aDbgcFuncs[];
389	extern const uint32_t g_cDbgcFuncs;
390	extern const DBGCCMD g_aCmdsCodeView[];
391	extern const uint32_t g_cCmdsCodeView;
392	extern const DBGCFUNC g_aFuncsCodeView[];
393	extern const uint32_t g_cFuncsCodeView;
394	extern const DBGCOP g_aDbgcOps[];
395	extern const uint32_t g_cDbgcOps;
396
397
398	/*******************************************************************************
399	* Defined Constants And Macros *
400	*******************************************************************************/
401	/** Locks the g_pExtCmdsHead and g_pExtFuncsHead lists for reading. */
402	#define DBGCEXTLISTS_LOCK_RD() do { } while (0)
403	/** Locks the g_pExtCmdsHead and g_pExtFuncsHead lists for writing. */
404	#define DBGCEXTLISTS_LOCK_WR() do { } while (0)
405	/** UnLocks the g_pExtCmdsHead and g_pExtFuncsHead lists after reading. */
406	#define DBGCEXTLISTS_UNLOCK_RD() do { } while (0)
407	/** UnLocks the g_pExtCmdsHead and g_pExtFuncsHead lists after writing. */
408	#define DBGCEXTLISTS_UNLOCK_WR() do { } while (0)
409
410
411
412	#endif
413

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source: vbox/trunk/src/VBox/Debugger/DBGCInternal.h@ 58090

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