DBGCInternal.h@ 49762

Last change on this file since 49762 was 47569, checked in by vboxsync, 11 years ago
DBGC: v86 disassembly fixes and tweaks.
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1	/* $Id: DBGCInternal.h 47569 2013-08-07 03:13:21Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, Internal Header File.
4	*/
5
6	/*
7	* Copyright (C) 2006-2013 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	/** The max length of a plug-in name, zero terminator included. */
69	#define DBGCPLUGIN_MAX_NAME 32
70
71	/**
72	* Plug-in tracking record.
73	*/
74	typedef struct DBGCPLUGIN
75	{
76	/** Pointer to the next plug-in. */
77	struct DBGCPLUGIN *pNext;
78	/** The loader handle. */
79	RTLDRMOD hLdrMod;
80	/** The plug-in entry point. */
81	PFNDBGCPLUGIN pfnEntry;
82	/** The plug-in name (variable length). */
83	char szName[DBGCPLUGIN_MAX_NAME];
84	} DBGCPLUGIN;
85	/** Pointer to plug-in tracking record. */
86	typedef DBGCPLUGIN *PDBGCPLUGIN;
87
88
89	/**
90	* Debugger console status
91	*/
92	typedef enum DBGCSTATUS
93	{
94	/** Normal status, .*/
95	DBGC_HALTED
96
97	} DBGCSTATUS;
98
99
100	/**
101	* Debugger console instance data.
102	*/
103	typedef struct DBGC
104	{
105	/** Command helpers. */
106	DBGCCMDHLP CmdHlp;
107	/** Wrappers for DBGF output. */
108	DBGFINFOHLP DbgfOutputHlp;
109	/** Pointer to backend callback structure. */
110	PDBGCBACK pBack;
111
112	/** Pointer to the current VM. */
113	PVM pVM;
114	/** The user mode handle of the current VM. */
115	PUVM pUVM;
116	/** The ID of current virtual CPU. */
117	VMCPUID idCpu;
118	/** The current address space handle. */
119	RTDBGAS hDbgAs;
120	/** The current debugger emulation. */
121	const char *pszEmulation;
122	/** Pointer to the commands for the current debugger emulation. */
123	PCDBGCCMD paEmulationCmds;
124	/** The number of commands paEmulationCmds points to. */
125	unsigned cEmulationCmds;
126	/** Pointer to the functions for the current debugger emulation. */
127	PCDBGCFUNC paEmulationFuncs;
128	/** The number of functions paEmulationFuncs points to. */
129	uint32_t cEmulationFuncs;
130	/** Log indicator. (If set we're writing the log to the console.) */
131	bool fLog;
132
133	/** Indicates whether we're in guest (true) or hypervisor (false) register context. */
134	bool fRegCtxGuest;
135	/** Indicates whether the register are terse or sparse. */
136	bool fRegTerse;
137	/** Counter use to suppress the printing of the headers. */
138	uint8_t cPagingHierarchyDumps;
139
140	/** Current disassembler position. */
141	DBGCVAR DisasmPos;
142	/** The flags that goes with DisasmPos. */
143	uint32_t fDisasm;
144	/** Current source position. (flat GC) */
145	DBGCVAR SourcePos;
146	/** Current memory dump position. */
147	DBGCVAR DumpPos;
148	/** Size of the previous dump element. */
149	unsigned cbDumpElement;
150	/** Points to DisasmPos, SourcePos or DumpPos depending on which was
151	* used last. */
152	PCDBGCVAR pLastPos;
153
154	/** Number of variables in papVars. */
155	unsigned cVars;
156	/** Array of global variables.
157	* Global variables can be referenced using the $ operator and set
158	* and unset using command with those names. */
159	PDBGCNAMEDVAR *papVars;
160
161	/** The list of plug-in. (singly linked) */
162	PDBGCPLUGIN pPlugInHead;
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	/** Scratch buffer position. */
199	char *pszScratch;
200	/** Scratch buffer. */
201	char achScratch[16384];
202	/** Argument array position. */
203	unsigned iArg;
204	/** Array of argument variables. */
205	DBGCVAR aArgs[100];
206
207	/** rc from the last dbgcHlpPrintfV(). */
208	int rcOutput;
209	/** The last character we wrote. */
210	char chLastOutput;
211
212	/** rc from the last command. */
213	int rcCmd;
214	/** @} */
215	} DBGC;
216	/** Pointer to debugger console instance data. */
217	typedef DBGC *PDBGC;
218
219	/** Converts a Command Helper pointer to a pointer to DBGC instance data. */
220	#define DBGC_CMDHLP2DBGC(pCmdHlp) ( (PDBGC)((uintptr_t)(pCmdHlp) - RT_OFFSETOF(DBGC, CmdHlp)) )
221
222
223	/**
224	* Chunk of external commands.
225	*/
226	typedef struct DBGCEXTCMDS
227	{
228	/** Number of commands descriptors. */
229	unsigned cCmds;
230	/** Pointer to array of command descriptors. */
231	PCDBGCCMD paCmds;
232	/** Pointer to the next chunk. */
233	struct DBGCEXTCMDS *pNext;
234	} DBGCEXTCMDS;
235	/** Pointer to chunk of external commands. */
236	typedef DBGCEXTCMDS *PDBGCEXTCMDS;
237
238
239	/**
240	* Chunk of external functions.
241	*/
242	typedef struct DBGCEXTFUNCS
243	{
244	/** Number of functions descriptors. */
245	uint32_t cFuncs;
246	/** Pointer to array of functions descriptors. */
247	PCDBGCFUNC paFuncs;
248	/** Pointer to the next chunk. */
249	struct DBGCEXTFUNCS *pNext;
250	} DBGCEXTFUNCS;
251	/** Pointer to chunk of external functions. */
252	typedef DBGCEXTFUNCS *PDBGCEXTFUNCS;
253
254
255
256	/**
257	* Unary operator handler function.
258	*
259	* @returns 0 on success.
260	* @returns VBox evaluation / parsing error code on failure.
261	* The caller does the bitching.
262	* @param pDbgc Debugger console instance data.
263	* @param pArg The argument.
264	* @param enmCat The desired result category. Can be ignored.
265	* @param pResult Where to store the result.
266	*/
267	typedef DECLCALLBACK(int) FNDBGCOPUNARY(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
268	/** Pointer to a unary operator handler function. */
269	typedef FNDBGCOPUNARY *PFNDBGCOPUNARY;
270
271
272	/**
273	* Binary operator handler function.
274	*
275	* @returns 0 on success.
276	* @returns VBox evaluation / parsing error code on failure.
277	* The caller does the bitching.
278	* @param pDbgc Debugger console instance data.
279	* @param pArg1 The first argument.
280	* @param pArg2 The 2nd argument.
281	* @param pResult Where to store the result.
282	*/
283	typedef DECLCALLBACK(int) FNDBGCOPBINARY(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult);
284	/** Pointer to a binary operator handler function. */
285	typedef FNDBGCOPBINARY *PFNDBGCOPBINARY;
286
287
288	/**
289	* Operator descriptor.
290	*/
291	typedef struct DBGCOP
292	{
293	/** Operator mnemonic. */
294	char szName[4];
295	/** Length of name. */
296	const unsigned cchName;
297	/** Whether or not this is a binary operator.
298	* Unary operators are evaluated right-to-left while binary are left-to-right. */
299	bool fBinary;
300	/** Precedence level. */
301	unsigned iPrecedence;
302	/** Unary operator handler. */
303	PFNDBGCOPUNARY pfnHandlerUnary;
304	/** Binary operator handler. */
305	PFNDBGCOPBINARY pfnHandlerBinary;
306	/** The category of the 1st argument.
307	* Set to DBGCVAR_CAT_ANY if anything goes. */
308	DBGCVARCAT enmCatArg1;
309	/** The category of the 2nd argument.
310	* Set to DBGCVAR_CAT_ANY if anything goes. */
311	DBGCVARCAT enmCatArg2;
312	/** Operator description. */
313	const char *pszDescription;
314	} DBGCOP;
315	/** Pointer to an operator descriptor. */
316	typedef DBGCOP *PDBGCOP;
317	/** Pointer to a const operator descriptor. */
318	typedef const DBGCOP *PCDBGCOP;
319
320
321
322	/** Pointer to symbol descriptor. */
323	typedef struct DBGCSYM *PDBGCSYM;
324	/** Pointer to const symbol descriptor. */
325	typedef const struct DBGCSYM *PCDBGCSYM;
326
327	/**
328	* Get builtin symbol.
329	*
330	* @returns 0 on success.
331	* @returns VBox evaluation / parsing error code on failure.
332	* The caller does the bitching.
333	* @param pSymDesc Pointer to the symbol descriptor.
334	* @param pCmdHlp Pointer to the command callback structure.
335	* @param enmType The result type.
336	* @param pResult Where to store the result.
337	*/
338	typedef DECLCALLBACK(int) FNDBGCSYMGET(PCDBGCSYM pSymDesc, PDBGCCMDHLP pCmdHlp, DBGCVARTYPE enmType, PDBGCVAR pResult);
339	/** Pointer to get function for a builtin symbol. */
340	typedef FNDBGCSYMGET *PFNDBGCSYMGET;
341
342	/**
343	* Set builtin symbol.
344	*
345	* @returns 0 on success.
346	* @returns VBox evaluation / parsing error code on failure.
347	* The caller does the bitching.
348	* @param pSymDesc Pointer to the symbol descriptor.
349	* @param pCmdHlp Pointer to the command callback structure.
350	* @param pValue The value to assign the symbol.
351	*/
352	typedef DECLCALLBACK(int) FNDBGCSYMSET(PCDBGCSYM pSymDesc, PDBGCCMDHLP pCmdHlp, PCDBGCVAR pValue);
353	/** Pointer to set function for a builtin symbol. */
354	typedef FNDBGCSYMSET *PFNDBGCSYMSET;
355
356
357	/**
358	* Symbol description (for builtin symbols).
359	*/
360	typedef struct DBGCSYM
361	{
362	/** Symbol name. */
363	const char *pszName;
364	/** Get function. */
365	PFNDBGCSYMGET pfnGet;
366	/** Set function. (NULL if readonly) */
367	PFNDBGCSYMSET pfnSet;
368	/** User data. */
369	unsigned uUser;
370	} DBGCSYM;
371
372
373	/*******************************************************************************
374	* Internal Functions *
375	*******************************************************************************/
376	int dbgcBpAdd(PDBGC pDbgc, RTUINT iBp, const char *pszCmd);
377	int dbgcBpUpdate(PDBGC pDbgc, RTUINT iBp, const char *pszCmd);
378	int dbgcBpDelete(PDBGC pDbgc, RTUINT iBp);
379	PDBGCBP dbgcBpGet(PDBGC pDbgc, RTUINT iBp);
380	int dbgcBpExec(PDBGC pDbgc, RTUINT iBp);
381
382	void dbgcEvalInit(void);
383	int dbgcEvalSub(PDBGC pDbgc, char *pszExpr, size_t cchExpr, DBGCVARCAT enmCategory, PDBGCVAR pResult);
384	int dbgcEvalCommand(PDBGC pDbgc, char *pszCmd, size_t cchCmd, bool fNoExecute);
385
386	int dbgcSymbolGet(PDBGC pDbgc, const char *pszSymbol, DBGCVARTYPE enmType, PDBGCVAR pResult);
387	PCDBGCSYM dbgcLookupRegisterSymbol(PDBGC pDbgc, const char *pszSymbol);
388	PCDBGCOP dbgcOperatorLookup(PDBGC pDbgc, const char *pszExpr, bool fPreferBinary, char chPrev);
389	PCDBGCCMD dbgcCommandLookup(PDBGC pDbgc, const char *pachName, size_t cchName, bool fExternal);
390	PCDBGCFUNC dbgcFunctionLookup(PDBGC pDbgc, const char *pachName, size_t cchName, bool fExternal);
391
392	DECLCALLBACK(int) dbgcOpRegister(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
393	DECLCALLBACK(int) dbgcOpAddrFlat(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
394	DECLCALLBACK(int) dbgcOpAddrHost(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
395	DECLCALLBACK(int) dbgcOpAddrPhys(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
396	DECLCALLBACK(int) dbgcOpAddrHostPhys(PDBGC pDbgc, PCDBGCVAR pArg, DBGCVARCAT enmCat, PDBGCVAR pResult);
397
398	void dbgcInitCmdHlp(PDBGC pDbgc);
399
400	void dbgcPlugInAutoLoad(PDBGC pDbgc);
401	void dbgcPlugInUnloadAll(PDBGC pDbgc);
402
403	/* For tstDBGCParser: */
404	int dbgcCreate(PDBGC *ppDbgc, PDBGCBACK pBack, unsigned fFlags);
405	int dbgcRun(PDBGC pDbgc);
406	int dbgcProcessInput(PDBGC pDbgc, bool fNoExecute);
407	void dbgcDestroy(PDBGC pDbgc);
408
409
410	/*******************************************************************************
411	* Global Variables *
412	*******************************************************************************/
413	extern const DBGCCMD g_aDbgcCmds[];
414	extern const uint32_t g_cDbgcCmds;
415	extern const DBGCFUNC g_aDbgcFuncs[];
416	extern const uint32_t g_cDbgcFuncs;
417	extern const DBGCCMD g_aCmdsCodeView[];
418	extern const uint32_t g_cCmdsCodeView;
419	extern const DBGCFUNC g_aFuncsCodeView[];
420	extern const uint32_t g_cFuncsCodeView;
421	extern const DBGCOP g_aDbgcOps[];
422	extern const uint32_t g_cDbgcOps;
423
424
425	/*******************************************************************************
426	* Defined Constants And Macros *
427	*******************************************************************************/
428	/** Locks the g_pExtCmdsHead and g_pExtFuncsHead lists for reading. */
429	#define DBGCEXTLISTS_LOCK_RD() do { } while (0)
430	/** Locks the g_pExtCmdsHead and g_pExtFuncsHead lists for writing. */
431	#define DBGCEXTLISTS_LOCK_WR() do { } while (0)
432	/** UnLocks the g_pExtCmdsHead and g_pExtFuncsHead lists after reading. */
433	#define DBGCEXTLISTS_UNLOCK_RD() do { } while (0)
434	/** UnLocks the g_pExtCmdsHead and g_pExtFuncsHead lists after writing. */
435	#define DBGCEXTLISTS_UNLOCK_WR() do { } while (0)
436
437
438
439	#endif
440

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source: vbox/trunk/src/VBox/Debugger/DBGCInternal.h@ 49762

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