DBGCEmulateCodeView.cpp@ 35694

Last change on this file since 35694 was 35694, checked in by vboxsync, 14 years ago
Debugger console: more cleanup.
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File size: 183.4 KB

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1	/* $Id: DBGCEmulateCodeView.cpp 35694 2011-01-24 17:35:59Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, CodeView / WinDbg Emulation.
4	*/
5
6	/*
7	* Copyright (C) 2006-2011 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.215389.xyz. 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	* Header Files *
20	*******************************************************************************/
21	#define LOG_GROUP LOG_GROUP_DBGC
22	#include <VBox/dbg.h>
23	#include <VBox/vmm/dbgf.h>
24	#include <VBox/vmm/pgm.h>
25	#include <VBox/vmm/cpum.h>
26	#include <VBox/dis.h>
27	#include <VBox/param.h>
28	#include <VBox/err.h>
29	#include <VBox/log.h>
30
31	#include <iprt/asm.h>
32	#include <iprt/mem.h>
33	#include <iprt/string.h>
34	#include <iprt/assert.h>
35	#include <iprt/ctype.h>
36
37	#include <stdlib.h>
38	#include <stdio.h>
39
40	#include "DBGCInternal.h"
41
42
43	/*******************************************************************************
44	* Internal Functions *
45	*******************************************************************************/
46	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
47	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
48	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
49	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
50	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
51	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
52	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
53	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
54	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
55	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
56	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
57	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
58	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
59	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
60	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
61	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
62	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
63	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
64	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
65	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
66	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
67	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
68	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
69	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
70	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
71	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
72	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
73	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
74	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
75	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
76	static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
77
78
79	/*******************************************************************************
80	* Global Variables *
81	*******************************************************************************/
82	/** 'ba' arguments. */
83	static const DBGCVARDESC g_aArgBrkAcc[] =
84	{
85	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
86	{ 1, 1, DBGCVAR_CAT_STRING, 0, "access", "The access type: x=execute, rw=read/write (alias r), w=write, i=not implemented." },
87	{ 1, 1, DBGCVAR_CAT_NUMBER, 0, "size", "The access size: 1, 2, 4, or 8. 'x' access requires 1, and 8 requires amd64 long mode." },
88	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
89	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
90	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
91	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
92	};
93
94
95	/** 'bc', 'bd', 'be' arguments. */
96	static const DBGCVARDESC g_aArgBrks[] =
97	{
98	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
99	{ 0, ~0, DBGCVAR_CAT_NUMBER, 0, "#bp", "Breakpoint number." },
100	{ 0, 1, DBGCVAR_CAT_STRING, 0, "all", "All breakpoints." },
101	};
102
103
104	/** 'bp' arguments. */
105	static const DBGCVARDESC g_aArgBrkSet[] =
106	{
107	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
108	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
109	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
110	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
111	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
112	};
113
114
115	/** 'br' arguments. */
116	static const DBGCVARDESC g_aArgBrkREM[] =
117	{
118	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
119	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
120	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
121	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
122	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
123	};
124
125
126	/** 'd?' arguments. */
127	static const DBGCVARDESC g_aArgDumpMem[] =
128	{
129	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
130	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start dumping memory." },
131	};
132
133
134	/** 'dg', 'dga', 'dl', 'dla' arguments. */
135	static const DBGCVARDESC g_aArgDumpDT[] =
136	{
137	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
138	{ 0, ~0, DBGCVAR_CAT_NUMBER, 0, "sel", "Selector or selector range." },
139	{ 0, ~0, DBGCVAR_CAT_POINTER, 0, "address", "Far address which selector should be dumped." },
140	};
141
142
143	/** 'di', 'dia' arguments. */
144	static const DBGCVARDESC g_aArgDumpIDT[] =
145	{
146	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
147	{ 0, ~0, DBGCVAR_CAT_NUMBER, 0, "int", "The interrupt vector or interrupt vector range." },
148	};
149
150
151	/** 'dpd' arguments. /
152	static const DBGCVARDESC g_aArgDumpPD[] =
153	{
154	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
155	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "index", "Index into the page directory." },
156	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from. Range is applied to the page directory." },
157	};
158
159
160	/** 'dpda' arguments. */
161	static const DBGCVARDESC g_aArgDumpPDAddr[] =
162	{
163	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
164	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page directory entry to start dumping from." },
165	};
166
167
168	/** 'dph' arguments. /
169	static const DBGCVARDESC g_aArgDumpPH[] =
170	{
171	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
172	{ 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "Where in the address space to start dumping and for how long (range). The default address/range will be used if omitted." },
173	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "cr3", "The CR3 value to use. The current CR3 of the context will be used if omitted." },
174	{ 0, 1, DBGCVAR_CAT_STRING, DBGCVD_FLAGS_DEP_PREV, "mode", "The paging mode: legacy, pse, pae, long, ept. Append '-np' for nested paging and '-nx' for no-execute. The current mode will be used if omitted." },
175	};
176
177
178	/** 'dpt?' arguments. */
179	static const DBGCVARDESC g_aArgDumpPT[] =
180	{
181	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
182	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from." },
183	};
184
185
186	/** 'dpta' arguments. */
187	static const DBGCVARDESC g_aArgDumpPTAddr[] =
188	{
189	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
190	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page table entry to start dumping from." },
191	};
192
193
194	/** 'dt' arguments. */
195	static const DBGCVARDESC g_aArgDumpTSS[] =
196	{
197	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
198	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "tss", "TSS selector number." },
199	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "tss:ign\|addr", "TSS address. If the selector is a TSS selector, the offset will be ignored." }
200	};
201
202
203	/** 'e?' arguments. */
204	static const DBGCVARDESC g_aArgEditMem[] =
205	{
206	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
207	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to write." },
208	{ 1, ~0, DBGCVAR_CAT_NUMBER, 0, "value", "Value to write." },
209	};
210
211
212	/** 'lm' arguments. */
213	static const DBGCVARDESC g_aArgListMods[] =
214	{
215	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
216	{ 0, ~0, DBGCVAR_CAT_STRING, 0, "module", "Module name." },
217	};
218
219
220	/** 'ln' arguments. */
221	static const DBGCVARDESC g_aArgListNear[] =
222	{
223	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
224	{ 0, ~0, DBGCVAR_CAT_POINTER, 0, "address", "Address of the symbol to look up." },
225	{ 0, ~0, DBGCVAR_CAT_SYMBOL, 0, "symbol", "Symbol to lookup." },
226	};
227
228	/** 'ln' return. */
229	static const DBGCVARDESC g_RetListNear =
230	{
231	1, 1, DBGCVAR_CAT_POINTER, 0, "address", "The last resolved symbol/address with adjusted range."
232	};
233
234
235	/** 'ls' arguments. */
236	static const DBGCVARDESC g_aArgListSource[] =
237	{
238	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
239	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start looking for source lines." },
240	};
241
242
243	/** 'm' argument. */
244	static const DBGCVARDESC g_aArgMemoryInfo[] =
245	{
246	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
247	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Pointer to obtain info about." },
248	};
249
250
251	/** 'r' arguments. */
252	static const DBGCVARDESC g_aArgReg[] =
253	{
254	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
255	{ 0, 1, DBGCVAR_CAT_SYMBOL, 0, "register", "Register to show or set." },
256	{ 0, 1, DBGCVAR_CAT_NUMBER_NO_RANGE, DBGCVD_FLAGS_DEP_PREV, "value", "New register value." },
257	};
258
259
260	/** 's' arguments. */
261	static const DBGCVARDESC g_aArgSearchMem[] =
262	{
263	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
264	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-b", "Byte string." },
265	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-w", "Word string." },
266	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-d", "DWord string." },
267	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-q", "QWord string." },
268	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-a", "ASCII string." },
269	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-u", "Unicode string." },
270	{ 0, 1, DBGCVAR_CAT_OPTION_NUMBER, 0, "-n <Hits>", "Maximum number of hits." },
271	{ 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
272	{ 0, ~0, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
273	};
274
275
276	/** 's?' arguments. */
277	static const DBGCVARDESC g_aArgSearchMemType[] =
278	{
279	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
280	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
281	{ 1, ~0, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
282	};
283
284
285	/** 'u' arguments. */
286	static const DBGCVARDESC g_aArgUnassemble[] =
287	{
288	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
289	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start disassembling." },
290	};
291
292
293	/** Command descriptors for the CodeView / WinDbg emulation.
294	* The emulation isn't attempting to be identical, only somewhat similar.
295	*/
296	const DBGCCMD g_aCmdsCodeView[] =
297	{
298	/* pszCmd, cArgsMin, cArgsMax, paArgDescs, cArgDescs, pResultDesc, fFlags, pfnHandler pszSyntax, ....pszDescription */
299	{ "ba", 3, 6, &g_aArgBrkAcc[0], RT_ELEMENTS(g_aArgBrkAcc), NULL, 0, dbgcCmdBrkAccess, "<access> <size> <address> [passes [max passes]] [cmds]",
300	"Sets a data access breakpoint." },
301	{ "bc", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkClear, "all \| <bp#> [bp# []]", "Enabled a set of breakpoints." },
302	{ "bd", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkDisable, "all \| <bp#> [bp# []]", "Disables a set of breakpoints." },
303	{ "be", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkEnable, "all \| <bp#> [bp# []]", "Enabled a set of breakpoints." },
304	{ "bl", 0, 0, NULL, 0, NULL, 0, dbgcCmdBrkList, "", "Lists all the breakpoints." },
305	{ "bp", 1, 4, &g_aArgBrkSet[0], RT_ELEMENTS(g_aArgBrkSet), NULL, 0, dbgcCmdBrkSet, "<address> [passes [max passes]] [cmds]",
306	"Sets a breakpoint (int 3)." },
307	{ "br", 1, 4, &g_aArgBrkREM[0], RT_ELEMENTS(g_aArgBrkREM), NULL, 0, dbgcCmdBrkREM, "<address> [passes [max passes]] [cmds]",
308	"Sets a recompiler specific breakpoint." },
309	{ "d", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory using last element size." },
310	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
311	{ "db", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in bytes." },
312	{ "dd", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in double words." },
313	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
314	{ "dg", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT)." },
315	{ "dga", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT) including not-present entries." },
316	{ "di", 0, ~0, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), NULL, 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT)." },
317	{ "dia", 0, ~0, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), NULL, 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT) including not-present entries." },
318	{ "dl", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT)." },
319	{ "dla", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT) including not-present entries." },
320	{ "dpd", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the default context." },
321	{ "dpda", 0, 1, &g_aArgDumpPDAddr[0],RT_ELEMENTS(g_aArgDumpPDAddr),NULL, 0, dbgcCmdDumpPageDir, "[addr]", "Dumps specified page directory." },
322	{ "dpdb", 1, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDirBoth, "[addr] [index]", "Dumps page directory entries of the guest and the hypervisor. " },
323	{ "dpdg", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the guest." },
324	{ "dpdh", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the hypervisor. " },
325	{ "dph", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), NULL, 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Default context." },
326	{ "dphg", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), NULL, 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Guest context." },
327	{ "dphh", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), NULL, 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Hypervisor context." },
328	{ "dpt", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the default context." },
329	{ "dpta", 1, 1, &g_aArgDumpPTAddr[0],RT_ELEMENTS(g_aArgDumpPTAddr), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps specified page table." },
330	{ "dptb", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTableBoth,"<addr>", "Dumps page table entries of the guest and the hypervisor." },
331	{ "dptg", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the guest." },
332	{ "dpth", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the hypervisor." },
333	{ "dq", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in quad words." },
334	{ "dt", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), NULL, 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the task state segment (TSS)." },
335	{ "dt16", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), NULL, 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 16-bit task state segment (TSS)." },
336	{ "dt32", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), NULL, 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 32-bit task state segment (TSS)." },
337	{ "dt64", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), NULL, 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 64-bit task state segment (TSS)." },
338	{ "dw", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in words." },
339	/** @todo add 'e', 'ea str', 'eza str', 'eu str' and 'ezu str'. See also
340	* dbgcCmdSearchMem and its dbgcVarsToBytes usage. */
341	{ "eb", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 1-byte value to memory." },
342	{ "ew", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 2-byte value to memory." },
343	{ "ed", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 4-byte value to memory." },
344	{ "eq", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 8-byte value to memory." },
345	{ "g", 0, 0, NULL, 0, NULL, 0, dbgcCmdGo, "", "Continue execution." },
346	{ "k", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack." },
347	{ "kg", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack - guest." },
348	{ "kh", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack - hypervisor." },
349	{ "lm", 0, ~0, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), NULL, 0, dbgcCmdListModules, "[module [..]]", "List modules." },
350	{ "lmo", 0, ~0, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), NULL, 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments." },
351	{ "ln", 0, ~0, &g_aArgListNear[0], RT_ELEMENTS(g_aArgListNear), &g_RetListNear, 0, dbgcCmdListNear, "[addr/sym [..]]", "List symbols near to the address. Default address is CS:EIP." },
352	{ "ls", 0, 1, &g_aArgListSource[0],RT_ELEMENTS(g_aArgListSource),NULL, 0, dbgcCmdListSource, "[addr]", "Source." },
353	{ "m", 1, 1, &g_aArgMemoryInfo[0],RT_ELEMENTS(g_aArgMemoryInfo),NULL, 0, dbgcCmdMemoryInfo, "<addr>", "Display information about that piece of memory." },
354	{ "r", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdReg, "[reg [newval]]", "Show or set register(s) - active reg set." },
355	{ "rg", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdRegGuest, "[reg [newval]]", "Show or set register(s) - guest reg set." },
356	{ "rg32", 0, 0, NULL, 0, NULL, 0, dbgcCmdRegGuest, "", "Show 32-bit guest registers." },
357	{ "rg64", 0, 0, NULL, 0, NULL, 0, dbgcCmdRegGuest, "", "Show 64-bit guest registers." },
358	{ "rh", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdRegHyper, "[reg [newval]]", "Show or set register(s) - hypervisor reg set." },
359	{ "rt", 0, 0, NULL, 0, NULL, 0, dbgcCmdRegTerse, "", "Toggles terse / verbose register info." },
360	{ "s", 0, ~0, &g_aArgSearchMem[0], RT_ELEMENTS(g_aArgSearchMem), NULL, 0, dbgcCmdSearchMem, "[options] <range> <pattern>", "Continue last search." },
361	{ "sa", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an ascii string." },
362	{ "sb", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more bytes." },
363	{ "sd", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more double words." },
364	{ "sq", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more quad words." },
365	{ "su", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an unicode string." },
366	{ "sw", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more words." },
367	{ "t", 0, 0, NULL, 0, NULL, 0, dbgcCmdTrace, "", "Instruction trace (step into)." },
368	{ "u", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble." },
369	{ "u64", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 64-bit code." },
370	{ "u32", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 32-bit code." },
371	{ "u16", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code." },
372	{ "uv86", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code with v8086/real mode addressing." },
373	};
374
375	/** The number of commands in the CodeView/WinDbg emulation. */
376	const unsigned g_cCmdsCodeView = RT_ELEMENTS(g_aCmdsCodeView);
377
378
379
380	/**
381	* The 'go' command.
382	*
383	* @returns VBox status.
384	* @param pCmd Pointer to the command descriptor (as registered).
385	* @param pCmdHlp Pointer to command helper functions.
386	* @param pVM Pointer to the current VM (if any).
387	* @param paArgs Pointer to (readonly) array of arguments.
388	* @param cArgs Number of arguments in the array.
389	*/
390	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
391	{
392	DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
393
394	/*
395	* Check if the VM is halted or not before trying to resume it.
396	*/
397	if (!DBGFR3IsHalted(pVM))
398	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The VM is already running");
399
400	int rc = DBGFR3Resume(pVM);
401	if (RT_FAILURE(rc))
402	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3Resume");
403
404	NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
405	return VINF_SUCCESS;
406	}
407
408
409	/**
410	* The 'ba' command.
411	*
412	* @returns VBox status.
413	* @param pCmd Pointer to the command descriptor (as registered).
414	* @param pCmdHlp Pointer to command helper functions.
415	* @param pVM Pointer to the current VM (if any).
416	* @param paArgs Pointer to (readonly) array of arguments.
417	* @param cArgs Number of arguments in the array.
418	*/
419	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
420	{
421	DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
422
423	/*
424	* Interpret access type.
425	*/
426	if ( !strchr("xrwi", paArgs[0].u.pszString[0])
427	\|\| paArgs[0].u.pszString[1])
428	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access type '%s' for '%s'. Valid types are 'e', 'r', 'w' and 'i'",
429	paArgs[0].u.pszString, pCmd->pszCmd);
430	uint8_t fType = 0;
431	switch (paArgs[0].u.pszString[0])
432	{
433	case 'x': fType = X86_DR7_RW_EO; break;
434	case 'r': fType = X86_DR7_RW_RW; break;
435	case 'w': fType = X86_DR7_RW_WO; break;
436	case 'i': fType = X86_DR7_RW_IO; break;
437	}
438
439	/*
440	* Validate size.
441	*/
442	if (fType == X86_DR7_RW_EO && paArgs[1].u.u64Number != 1)
443	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 'x' access type requires size 1!",
444	paArgs[1].u.u64Number, pCmd->pszCmd);
445	switch (paArgs[1].u.u64Number)
446	{
447	case 1:
448	case 2:
449	case 4:
450	break;
451	/case 8: - later/
452	default:
453	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 1, 2 or 4!",
454	paArgs[1].u.u64Number, pCmd->pszCmd);
455	}
456	uint8_t cb = (uint8_t)paArgs[1].u.u64Number;
457
458	/*
459	* Convert the pointer to a DBGF address.
460	*/
461	DBGFADDRESS Address;
462	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[2], &Address);
463	if (RT_FAILURE(rc))
464	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%DV,)", &paArgs[2]);
465
466	/*
467	* Pick out the optional arguments.
468	*/
469	uint64_t iHitTrigger = 0;
470	uint64_t iHitDisable = ~0;
471	const char *pszCmds = NULL;
472	unsigned iArg = 3;
473	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
474	{
475	iHitTrigger = paArgs[iArg].u.u64Number;
476	iArg++;
477	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
478	{
479	iHitDisable = paArgs[iArg].u.u64Number;
480	iArg++;
481	}
482	}
483	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
484	{
485	pszCmds = paArgs[iArg].u.pszString;
486	iArg++;
487	}
488
489	/*
490	* Try set the breakpoint.
491	*/
492	uint32_t iBp;
493	rc = DBGFR3BpSetReg(pVM, &Address, iHitTrigger, iHitDisable, fType, cb, &iBp);
494	if (RT_SUCCESS(rc))
495	{
496	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
497	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
498	if (RT_SUCCESS(rc))
499	return DBGCCmdHlpPrintf(pCmdHlp, "Set access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
500	if (rc == VERR_DBGC_BP_EXISTS)
501	{
502	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
503	if (RT_SUCCESS(rc))
504	return DBGCCmdHlpPrintf(pCmdHlp, "Updated access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
505	}
506	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
507	AssertRC(rc2);
508	}
509	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set access breakpoint at %RGv", Address.FlatPtr);
510	}
511
512
513	/**
514	* The 'bc' command.
515	*
516	* @returns VBox status.
517	* @param pCmd Pointer to the command descriptor (as registered).
518	* @param pCmdHlp Pointer to command helper functions.
519	* @param pVM Pointer to the current VM (if any).
520	* @param paArgs Pointer to (readonly) array of arguments.
521	* @param cArgs Number of arguments in the array.
522	*/
523	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
524	{
525	DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
526
527	/*
528	* Enumerate the arguments.
529	*/
530	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
531	int rc = VINF_SUCCESS;
532	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
533	{
534	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
535	{
536	/* one */
537	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
538	if (iBp == paArgs[iArg].u.u64Number)
539	{
540	int rc2 = DBGFR3BpClear(pVM, iBp);
541	if (RT_FAILURE(rc2))
542	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
543	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
544	dbgcBpDelete(pDbgc, iBp);
545	}
546	else
547	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
548	}
549	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
550	{
551	/* all */
552	PDBGCBP pBp = pDbgc->pFirstBp;
553	while (pBp)
554	{
555	uint32_t iBp = pBp->iBp;
556	pBp = pBp->pNext;
557
558	int rc2 = DBGFR3BpClear(pVM, iBp);
559	if (RT_FAILURE(rc2))
560	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
561	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
562	dbgcBpDelete(pDbgc, iBp);
563	}
564	}
565	else
566	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
567	}
568	return rc;
569	}
570
571
572	/**
573	* The 'bd' command.
574	*
575	* @returns VBox status.
576	* @param pCmd Pointer to the command descriptor (as registered).
577	* @param pCmdHlp Pointer to command helper functions.
578	* @param pVM Pointer to the current VM (if any).
579	* @param paArgs Pointer to (readonly) array of arguments.
580	* @param cArgs Number of arguments in the array.
581	*/
582	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
583	{
584	/*
585	* Enumerate the arguments.
586	*/
587	int rc = VINF_SUCCESS;
588	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
589	{
590	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
591	{
592	/* one */
593	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
594	if (iBp == paArgs[iArg].u.u64Number)
595	{
596	rc = DBGFR3BpDisable(pVM, iBp);
597	if (RT_FAILURE(rc))
598	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpDisable failed for breakpoint %#x", iBp);
599	}
600	else
601	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
602	}
603	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
604	{
605	/* all */
606	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
607	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
608	{
609	int rc2 = DBGFR3BpDisable(pVM, pBp->iBp);
610	if (RT_FAILURE(rc2))
611	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpDisable failed for breakpoint %#x", pBp->iBp);
612	}
613	}
614	else
615	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
616	}
617	return rc;
618	}
619
620
621	/**
622	* The 'be' command.
623	*
624	* @returns VBox status.
625	* @param pCmd Pointer to the command descriptor (as registered).
626	* @param pCmdHlp Pointer to command helper functions.
627	* @param pVM Pointer to the current VM (if any).
628	* @param paArgs Pointer to (readonly) array of arguments.
629	* @param cArgs Number of arguments in the array.
630	*/
631	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
632	{
633	DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
634
635	/*
636	* Enumerate the arguments.
637	*/
638	int rc = VINF_SUCCESS;
639	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
640	{
641	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
642	{
643	/* one */
644	uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
645	if (iBp == paArgs[iArg].u.u64Number)
646	{
647	rc = DBGFR3BpEnable(pVM, iBp);
648	if (RT_FAILURE(rc))
649	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnable failed for breakpoint %#x", iBp);
650	}
651	else
652	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
653	}
654	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
655	{
656	/* all */
657	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
658	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
659	{
660	int rc2 = DBGFR3BpEnable(pVM, pBp->iBp);
661	if (RT_FAILURE(rc2))
662	rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpEnable failed for breakpoint %#x", pBp->iBp);
663	}
664	}
665	else
666	rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
667	}
668	return rc;
669	}
670
671
672	/**
673	* Breakpoint enumeration callback function.
674	*
675	* @returns VBox status code. Any failure will stop the enumeration.
676	* @param pVM The VM handle.
677	* @param pvUser The user argument.
678	* @param pBp Pointer to the breakpoint information. (readonly)
679	*/
680	static DECLCALLBACK(int) dbgcEnumBreakpointsCallback(PVM pVM, void *pvUser, PCDBGFBP pBp)
681	{
682	PDBGC pDbgc = (PDBGC)pvUser;
683	PDBGCBP pDbgcBp = dbgcBpGet(pDbgc, pBp->iBp);
684
685	/*
686	* BP type and size.
687	*/
688	char chType;
689	char cb = 1;
690	switch (pBp->enmType)
691	{
692	case DBGFBPTYPE_INT3:
693	chType = 'p';
694	break;
695	case DBGFBPTYPE_REG:
696	switch (pBp->u.Reg.fType)
697	{
698	case X86_DR7_RW_EO: chType = 'x'; break;
699	case X86_DR7_RW_WO: chType = 'w'; break;
700	case X86_DR7_RW_IO: chType = 'i'; break;
701	case X86_DR7_RW_RW: chType = 'r'; break;
702	default: chType = '?'; break;
703
704	}
705	cb = pBp->u.Reg.cb;
706	break;
707	case DBGFBPTYPE_REM:
708	chType = 'r';
709	break;
710	default:
711	chType = '?';
712	break;
713	}
714
715	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%4#x %c %d %c %RGv %04RX64 (%04RX64 to ",
716	pBp->iBp, pBp->fEnabled ? 'e' : 'd', cb, chType,
717	pBp->GCPtr, pBp->cHits, pBp->iHitTrigger);
718	if (pBp->iHitDisable == ~(uint64_t)0)
719	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "~0) ");
720	else
721	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%04RX64)");
722
723	/*
724	* Try resolve the address.
725	*/
726	RTDBGSYMBOL Sym;
727	RTINTPTR off;
728	DBGFADDRESS Addr;
729	int rc = DBGFR3AsSymbolByAddr(pVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pVM, &Addr, pBp->GCPtr), &off, &Sym, NULL);
730	if (RT_SUCCESS(rc))
731	{
732	if (!off)
733	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s", Sym.szName);
734	else if (off > 0)
735	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s+%RGv", Sym.szName, off);
736	else
737	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s+%RGv", Sym.szName, -off);
738	}
739
740	/*
741	* The commands.
742	*/
743	if (pDbgcBp)
744	{
745	if (pDbgcBp->cchCmd)
746	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n cmds: '%s'\n", pDbgcBp->szCmd);
747	else
748	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n");
749	}
750	else
751	DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " [unknown bp]\n");
752
753	return VINF_SUCCESS;
754	}
755
756
757	/**
758	* The 'bl' command.
759	*
760	* @returns VBox status.
761	* @param pCmd Pointer to the command descriptor (as registered).
762	* @param pCmdHlp Pointer to command helper functions.
763	* @param pVM Pointer to the current VM (if any).
764	* @param paArgs Pointer to (readonly) array of arguments.
765	* @param cArgs Number of arguments in the array.
766	*/
767	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR /paArgs/, unsigned cArgs, PDBGCVAR /pResult/)
768	{
769	DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
770	DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs == 0);
771
772	/*
773	* Enumerate the breakpoints.
774	*/
775	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
776	int rc = DBGFR3BpEnum(pVM, dbgcEnumBreakpointsCallback, pDbgc);
777	if (RT_FAILURE(rc))
778	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnum");
779	return rc;
780	}
781
782
783	/**
784	* The 'bp' command.
785	*
786	* @returns VBox status.
787	* @param pCmd Pointer to the command descriptor (as registered).
788	* @param pCmdHlp Pointer to command helper functions.
789	* @param pVM Pointer to the current VM (if any).
790	* @param paArgs Pointer to (readonly) array of arguments.
791	* @param cArgs Number of arguments in the array.
792	*/
793	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
794	{
795	/*
796	* Convert the pointer to a DBGF address.
797	*/
798	DBGFADDRESS Address;
799	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
800	if (RT_FAILURE(rc))
801	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
802
803	/*
804	* Pick out the optional arguments.
805	*/
806	uint64_t iHitTrigger = 0;
807	uint64_t iHitDisable = ~0;
808	const char *pszCmds = NULL;
809	unsigned iArg = 1;
810	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
811	{
812	iHitTrigger = paArgs[iArg].u.u64Number;
813	iArg++;
814	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
815	{
816	iHitDisable = paArgs[iArg].u.u64Number;
817	iArg++;
818	}
819	}
820	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
821	{
822	pszCmds = paArgs[iArg].u.pszString;
823	iArg++;
824	}
825
826	/*
827	* Try set the breakpoint.
828	*/
829	uint32_t iBp;
830	rc = DBGFR3BpSet(pVM, &Address, iHitTrigger, iHitDisable, &iBp);
831	if (RT_SUCCESS(rc))
832	{
833	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
834	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
835	if (RT_SUCCESS(rc))
836	return DBGCCmdHlpPrintf(pCmdHlp, "Set breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
837	if (rc == VERR_DBGC_BP_EXISTS)
838	{
839	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
840	if (RT_SUCCESS(rc))
841	return DBGCCmdHlpPrintf(pCmdHlp, "Updated breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
842	}
843	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
844	AssertRC(rc2);
845	}
846	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set breakpoint at %RGv", Address.FlatPtr);
847	}
848
849
850	/**
851	* The 'br' command.
852	*
853	* @returns VBox status.
854	* @param pCmd Pointer to the command descriptor (as registered).
855	* @param pCmdHlp Pointer to command helper functions.
856	* @param pVM Pointer to the current VM (if any).
857	* @param paArgs Pointer to (readonly) array of arguments.
858	* @param cArgs Number of arguments in the array.
859	*/
860	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
861	{
862	/*
863	* Convert the pointer to a DBGF address.
864	*/
865	DBGFADDRESS Address;
866	int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
867	if (RT_FAILURE(rc))
868	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
869
870	/*
871	* Pick out the optional arguments.
872	*/
873	uint64_t iHitTrigger = 0;
874	uint64_t iHitDisable = ~0;
875	const char *pszCmds = NULL;
876	unsigned iArg = 1;
877	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
878	{
879	iHitTrigger = paArgs[iArg].u.u64Number;
880	iArg++;
881	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
882	{
883	iHitDisable = paArgs[iArg].u.u64Number;
884	iArg++;
885	}
886	}
887	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
888	{
889	pszCmds = paArgs[iArg].u.pszString;
890	iArg++;
891	}
892
893	/*
894	* Try set the breakpoint.
895	*/
896	uint32_t iBp;
897	rc = DBGFR3BpSetREM(pVM, &Address, iHitTrigger, iHitDisable, &iBp);
898	if (RT_SUCCESS(rc))
899	{
900	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
901	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
902	if (RT_SUCCESS(rc))
903	return DBGCCmdHlpPrintf(pCmdHlp, "Set REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
904	if (rc == VERR_DBGC_BP_EXISTS)
905	{
906	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
907	if (RT_SUCCESS(rc))
908	return DBGCCmdHlpPrintf(pCmdHlp, "Updated REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
909	}
910	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
911	AssertRC(rc2);
912	}
913	return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set REM breakpoint at %RGv", Address.FlatPtr);
914	}
915
916
917	/**
918	* The 'u' command.
919	*
920	* @returns VBox status.
921	* @param pCmd Pointer to the command descriptor (as registered).
922	* @param pCmdHlp Pointer to command helper functions.
923	* @param pVM Pointer to the current VM (if any).
924	* @param paArgs Pointer to (readonly) array of arguments.
925	* @param cArgs Number of arguments in the array.
926	*/
927	static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
928	{
929	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
930
931	/*
932	* Validate input.
933	*/
934	if ( cArgs > 1
935	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
936	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
937	if (!pVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
938	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Don't know where to start disassembling...\n");
939	if (!pVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
940	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: GC address but no VM.\n");
941
942	unsigned fFlags = DBGF_DISAS_FLAGS_NO_ADDRESS;
943
944	/*
945	* Check the desired mode.
946	*/
947	switch (pCmd->pszCmd[1])
948	{
949	default: AssertFailed();
950	case '\0': fFlags \|= DBGF_DISAS_FLAGS_DEFAULT_MODE; break;
951	case '6': fFlags \|= DBGF_DISAS_FLAGS_64BIT_MODE; break;
952	case '3': fFlags \|= DBGF_DISAS_FLAGS_32BIT_MODE; break;
953	case '1': fFlags \|= DBGF_DISAS_FLAGS_16BIT_MODE; break;
954	case 'v': fFlags \|= DBGF_DISAS_FLAGS_16BIT_REAL_MODE; break;
955	}
956
957	/*
958	* Find address.
959	*/
960	if (!cArgs)
961	{
962	if (!DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
963	{
964	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
965	if ( pDbgc->fRegCtxGuest
966	&& CPUMIsGuestIn64BitCodeEx(CPUMQueryGuestCtxPtr(pVCpu)))
967	{
968	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FLAT;
969	pDbgc->SourcePos.u.GCFlat = CPUMGetGuestRIP(pVCpu);
970	}
971	else
972	{
973	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FAR;
974	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
975	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
976	}
977
978	if (pDbgc->fRegCtxGuest)
979	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_GUEST;
980	else
981	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_HYPER;
982	}
983	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
984	}
985	else
986	pDbgc->DisasmPos = paArgs[0];
987	pDbgc->pLastPos = &pDbgc->DisasmPos;
988
989	/*
990	* Range.
991	*/
992	switch (pDbgc->DisasmPos.enmRangeType)
993	{
994	case DBGCVAR_RANGE_NONE:
995	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
996	pDbgc->DisasmPos.u64Range = 10;
997	break;
998
999	case DBGCVAR_RANGE_ELEMENTS:
1000	if (pDbgc->DisasmPos.u64Range > 2048)
1001	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
1002	break;
1003
1004	case DBGCVAR_RANGE_BYTES:
1005	if (pDbgc->DisasmPos.u64Range > 65536)
1006	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
1007	break;
1008
1009	default:
1010	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DisasmPos.enmRangeType);
1011	}
1012
1013	/*
1014	* Convert physical and host addresses to guest addresses.
1015	*/
1016	int rc;
1017	switch (pDbgc->DisasmPos.enmType)
1018	{
1019	case DBGCVAR_TYPE_GC_FLAT:
1020	case DBGCVAR_TYPE_GC_FAR:
1021	break;
1022	case DBGCVAR_TYPE_GC_PHYS:
1023	case DBGCVAR_TYPE_HC_FLAT:
1024	case DBGCVAR_TYPE_HC_PHYS:
1025	{
1026	DBGCVAR VarTmp;
1027	rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1028	if (RT_FAILURE(rc))
1029	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: failed to evaluate '%%(%Dv)' -> %Rrc .\n", &pDbgc->DisasmPos, rc);
1030	pDbgc->DisasmPos = VarTmp;
1031	break;
1032	}
1033	default: AssertFailed(); break;
1034	}
1035
1036	/*
1037	* Print address.
1038	* todo: Change to list near.
1039	*/
1040	#if 0
1041	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DisasmPos);
1042	if (RT_FAILURE(rc))
1043	return rc;
1044	#endif
1045
1046	/*
1047	* Do the disassembling.
1048	*/
1049	unsigned cTries = 32;
1050	int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1051	if (iRangeLeft == 0) /* kludge for 'r'. */
1052	iRangeLeft = -1;
1053	for (;;)
1054	{
1055	/*
1056	* Disassemble the instruction.
1057	*/
1058	char szDis[256];
1059	uint32_t cbInstr = 1;
1060	if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1061	rc = DBGFR3DisasInstrEx(pVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1062	&szDis[0], sizeof(szDis), &cbInstr);
1063	else
1064	rc = DBGFR3DisasInstrEx(pVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1065	&szDis[0], sizeof(szDis), &cbInstr);
1066	if (RT_SUCCESS(rc))
1067	{
1068	/* print it */
1069	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1070	if (RT_FAILURE(rc))
1071	return rc;
1072	}
1073	else
1074	{
1075	/* bitch. */
1076	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to disassemble instruction, skipping one byte.\n");
1077	if (RT_FAILURE(rc))
1078	return rc;
1079	if (cTries-- > 0)
1080	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Too many disassembly failures. Giving up.\n");
1081	cbInstr = 1;
1082	}
1083
1084	/* advance */
1085	if (iRangeLeft < 0) /* 'r' */
1086	break;
1087	if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1088	iRangeLeft--;
1089	else
1090	iRangeLeft -= cbInstr;
1091	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1092	if (RT_FAILURE(rc))
1093	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DisasmPos, cbInstr);
1094	if (iRangeLeft <= 0)
1095	break;
1096	fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_CURRENT_HYPER);
1097	}
1098
1099	NOREF(pCmd); NOREF(pResult);
1100	return 0;
1101	}
1102
1103
1104	/**
1105	* The 'ls' command.
1106	*
1107	* @returns VBox status.
1108	* @param pCmd Pointer to the command descriptor (as registered).
1109	* @param pCmdHlp Pointer to command helper functions.
1110	* @param pVM Pointer to the current VM (if any).
1111	* @param paArgs Pointer to (readonly) array of arguments.
1112	* @param cArgs Number of arguments in the array.
1113	*/
1114	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1115	{
1116	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1117
1118	/*
1119	* Validate input.
1120	*/
1121	if ( cArgs > 1
1122	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
1123	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
1124	if (!pVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1125	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Don't know where to start disassembling...\n");
1126	if (!pVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1127	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: GC address but no VM.\n");
1128
1129	/*
1130	* Find address.
1131	*/
1132	if (!cArgs)
1133	{
1134	if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1135	{
1136	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
1137	pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1138	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1139	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1140	}
1141	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1142	}
1143	else
1144	pDbgc->SourcePos = paArgs[0];
1145	pDbgc->pLastPos = &pDbgc->SourcePos;
1146
1147	/*
1148	* Ensure the source address is flat GC.
1149	*/
1150	switch (pDbgc->SourcePos.enmType)
1151	{
1152	case DBGCVAR_TYPE_GC_FLAT:
1153	break;
1154	case DBGCVAR_TYPE_GC_PHYS:
1155	case DBGCVAR_TYPE_GC_FAR:
1156	case DBGCVAR_TYPE_HC_FLAT:
1157	case DBGCVAR_TYPE_HC_PHYS:
1158	{
1159	int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1160	if (RT_FAILURE(rc))
1161	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid address or address type. (rc=%d)\n", rc);
1162	break;
1163	}
1164	default: AssertFailed(); break;
1165	}
1166
1167	/*
1168	* Range.
1169	*/
1170	switch (pDbgc->SourcePos.enmRangeType)
1171	{
1172	case DBGCVAR_RANGE_NONE:
1173	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1174	pDbgc->SourcePos.u64Range = 10;
1175	break;
1176
1177	case DBGCVAR_RANGE_ELEMENTS:
1178	if (pDbgc->SourcePos.u64Range > 2048)
1179	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
1180	break;
1181
1182	case DBGCVAR_RANGE_BYTES:
1183	if (pDbgc->SourcePos.u64Range > 65536)
1184	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
1185	break;
1186
1187	default:
1188	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1189	}
1190
1191	/*
1192	* Do the disassembling.
1193	*/
1194	bool fFirst = 1;
1195	DBGFLINE LinePrev = { 0, 0, "" };
1196	int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1197	if (iRangeLeft == 0) /* kludge for 'r'. */
1198	iRangeLeft = -1;
1199	for (;;)
1200	{
1201	/*
1202	* Get line info.
1203	*/
1204	DBGFLINE Line;
1205	RTGCINTPTR off;
1206	int rc = DBGFR3LineByAddr(pVM, pDbgc->SourcePos.u.GCFlat, &off, &Line);
1207	if (RT_FAILURE(rc))
1208	return VINF_SUCCESS;
1209
1210	unsigned cLines = 0;
1211	if (memcmp(&Line, &LinePrev, sizeof(Line)))
1212	{
1213	/*
1214	* Print filenamename
1215	*/
1216	if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1217	fFirst = true;
1218	if (fFirst)
1219	{
1220	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1221	if (RT_FAILURE(rc))
1222	return rc;
1223	}
1224
1225	/*
1226	* Try open the file and read the line.
1227	*/
1228	FILE *phFile = fopen(Line.szFilename, "r");
1229	if (phFile)
1230	{
1231	/* Skip ahead to the desired line. */
1232	char szLine[4096];
1233	unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1234	if (cBefore > 7)
1235	cBefore = 0;
1236	unsigned cLeft = Line.uLineNo - cBefore;
1237	while (cLeft > 0)
1238	{
1239	szLine[0] = '\0';
1240	if (!fgets(szLine, sizeof(szLine), phFile))
1241	break;
1242	cLeft--;
1243	}
1244	if (!cLeft)
1245	{
1246	/* print the before lines */
1247	for (;;)
1248	{
1249	size_t cch = strlen(szLine);
1250	while (cch > 0 && (szLine[cch - 1] == '\r' \|\| szLine[cch - 1] == '\n' \|\| RT_C_IS_SPACE(szLine[cch - 1])) )
1251	szLine[--cch] = '\0';
1252	if (cBefore-- <= 0)
1253	break;
1254
1255	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1256	szLine[0] = '\0';
1257	fgets(szLine, sizeof(szLine), phFile);
1258	cLines++;
1259	}
1260	/* print the actual line */
1261	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1262	}
1263	fclose(phFile);
1264	if (RT_FAILURE(rc))
1265	return rc;
1266	fFirst = false;
1267	}
1268	else
1269	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1270
1271	LinePrev = Line;
1272	}
1273
1274
1275	/*
1276	* Advance
1277	*/
1278	if (iRangeLeft < 0) /* 'r' */
1279	break;
1280	if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1281	iRangeLeft -= cLines;
1282	else
1283	iRangeLeft -= 1;
1284	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1285	if (RT_FAILURE(rc))
1286	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1287	if (iRangeLeft <= 0)
1288	break;
1289	}
1290
1291	NOREF(pCmd); NOREF(pResult);
1292	return 0;
1293	}
1294
1295
1296	/**
1297	* The 'r' command.
1298	*
1299	* @returns VBox status.
1300	* @param pCmd Pointer to the command descriptor (as registered).
1301	* @param pCmdHlp Pointer to command helper functions.
1302	* @param pVM Pointer to the current VM (if any).
1303	* @param paArgs Pointer to (readonly) array of arguments.
1304	* @param cArgs Number of arguments in the array.
1305	*/
1306	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1307	{
1308	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1309	if (!pDbgc->fRegCtxGuest)
1310	return dbgcCmdRegHyper(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
1311	return dbgcCmdRegGuest(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
1312	}
1313
1314
1315	/**
1316	* Common worker for the dbgcCmdReg*() commands.
1317	*
1318	* @returns VBox status.
1319	* @param pCmd Pointer to the command descriptor (as registered).
1320	* @param pCmdHlp Pointer to command helper functions.
1321	* @param pVM Pointer to the current VM (if any).
1322	* @param paArgs Pointer to (readonly) array of arguments.
1323	* @param cArgs Number of arguments in the array.
1324	* @param pszPrefix The symbol prefix.
1325	*/
1326	static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs,
1327	PDBGCVAR pResult, const char *pszPrefix)
1328	{
1329	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1330	Assert(cArgs == 1 \|\| cArgs == 2); /* cArgs == 0 is handled by the caller */
1331	if ( paArgs[0].enmType != DBGCVAR_TYPE_STRING
1332	&& paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL)
1333	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. Try drop the '@' or/and quote the register name\n");
1334
1335	/*
1336	* Parse the register name and kind.
1337	*/
1338	const char *pszReg = paArgs[0].u.pszString;
1339	if (*pszReg == '@')
1340	pszReg++;
1341	VMCPUID idCpu = pDbgc->idCpu;
1342	if (*pszPrefix)
1343	idCpu \|= DBGFREG_HYPER_VMCPUID;
1344	if (*pszReg == '.')
1345	{
1346	pszReg++;
1347	idCpu \|= DBGFREG_HYPER_VMCPUID;
1348	}
1349	const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1350
1351	/*
1352	* Query the register type & value (the setter needs the type).
1353	*/
1354	DBGFREGVALTYPE enmType;
1355	DBGFREGVAL Value;
1356	int rc = DBGFR3RegNmQuery(pVM, idCpu, pszReg, &Value, &enmType);
1357	if (RT_FAILURE(rc))
1358	{
1359	if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1360	return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1361	pszActualPrefix, pszReg);
1362	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1363	pszActualPrefix, pszReg, rc);
1364	}
1365	if (cArgs == 1)
1366	{
1367	/*
1368	* Show the register.
1369	*/
1370	char szValue[160];
1371	rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /fSpecial/);
1372	if (RT_SUCCESS(rc))
1373	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1374	else
1375	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1376	}
1377	else if (cArgs == 2)
1378	{
1379	/*
1380	* Modify the register.
1381	*/
1382	if ( paArgs[1].enmType == DBGCVAR_TYPE_STRING
1383	\|\| paArgs[1].enmType == DBGCVAR_TYPE_SYMBOL)
1384	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly on the 2nd argument yet...\n");
1385	if (enmType != DBGFREGVALTYPE_DTR)
1386	{
1387	enmType = DBGFREGVALTYPE_U64;
1388	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.u64);
1389	}
1390	else
1391	{
1392	enmType = DBGFREGVALTYPE_DTR;
1393	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.dtr.u64Base);
1394	if (RT_SUCCESS(rc) && paArgs[1].enmRangeType != DBGCVAR_RANGE_NONE)
1395	Value.dtr.u32Limit = (uint32_t)paArgs[1].u64Range;
1396	}
1397	if (RT_SUCCESS(rc))
1398	{
1399	rc = DBGFR3RegNmSet(pVM, idCpu, pszReg, &Value, enmType);
1400	if (RT_FAILURE(rc))
1401	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1402	pszActualPrefix, pszReg, rc);
1403	}
1404	else
1405	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1406	}
1407	else
1408	{
1409	NOREF(pCmd); NOREF(paArgs); NOREF(pResult);
1410	rc = DBGCCmdHlpPrintf(pCmdHlp, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1411	}
1412	return rc;
1413	}
1414
1415
1416	/**
1417	* The 'rg', 'rg64' and 'rg32' commands.
1418	*
1419	* @returns VBox status.
1420	* @param pCmd Pointer to the command descriptor (as registered).
1421	* @param pCmdHlp Pointer to command helper functions.
1422	* @param pVM Pointer to the current VM (if any).
1423	* @param paArgs Pointer to (readonly) array of arguments.
1424	* @param cArgs Number of arguments in the array.
1425	*/
1426	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1427	{
1428	/*
1429	* Show all registers our selves.
1430	*/
1431	if (cArgs == 0)
1432	{
1433	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1434	bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1435	\|\| ( !strcmp(pCmd->pszCmd, "rg32")
1436	&& CPUMIsGuestIn64BitCodeEx(CPUMQueryGuestCtxPtr(VMMGetCpuById(pVM, pDbgc->idCpu))));
1437	char szDisAndRegs[8192];
1438	int rc;
1439
1440	if (pDbgc->fRegTerse)
1441	{
1442	if (f64BitMode)
1443	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1444	"u %016VR{rip} L 0\n"
1445	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1446	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1447	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1448	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1449	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1450	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1451	else
1452	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1453	"u %04VR{cs}:%08VR{eip} L 0\n"
1454	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1455	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1456	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1457	}
1458	else
1459	{
1460	if (f64BitMode)
1461	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1462	"u %016VR{rip} L 0\n"
1463	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1464	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1465	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1466	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1467	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1468	"cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1469	"ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1470	"es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1471	"fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1472	"gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1473	"ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1474	"dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1475	"dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1476	"gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1477	"ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1478	"tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1479	" sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1480	" efer=%016VR{efer}\n"
1481	" pat=%016VR{pat}\n"
1482	" sf_mask=%016VR{sf_mask}\n"
1483	"krnl_gs_base=%016VR{krnl_gs_base}\n"
1484	" lstar=%016VR{lstar}\n"
1485	" star=%016VR{star} cstar=%016VR{cstar}\n"
1486	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1487	);
1488	else
1489	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1490	"u %04VR{cs}:%08VR{eip} L 0\n"
1491	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1492	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1493	"cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1494	"ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1495	"es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr6=%08VR{dr6}\n"
1496	"fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr0}\n"
1497	"gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr0} cr4=%08VR{cr0}\n"
1498	"ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1499	"gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1500	"ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1501	"tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1502	"sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1503	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1504	);
1505	}
1506	if (RT_FAILURE(rc))
1507	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1508	char *pszRegs = strchr(szDisAndRegs, '\n');
1509	*pszRegs++ = '\0';
1510	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1511
1512	/*
1513	* Disassemble one instruction at cs:[r\|e]ip.
1514	*/
1515	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1516	}
1517	return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult, "");
1518	}
1519
1520
1521	/**
1522	* The 'rh' command.
1523	*
1524	* @returns VBox status.
1525	* @param pCmd Pointer to the command descriptor (as registered).
1526	* @param pCmdHlp Pointer to command helper functions.
1527	* @param pVM Pointer to the current VM (if any).
1528	* @param paArgs Pointer to (readonly) array of arguments.
1529	* @param cArgs Number of arguments in the array.
1530	*/
1531	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1532	{
1533	/*
1534	* Show all registers our selves.
1535	*/
1536	if (cArgs == 0)
1537	{
1538	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1539	char szDisAndRegs[8192];
1540	int rc;
1541
1542	if (pDbgc->fRegTerse)
1543	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1544	"u %VR{cs}:%VR{eip} L 0\n"
1545	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1546	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1547	".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1548	else
1549	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1550	"u %04VR{cs}:%08VR{eip} L 0\n"
1551	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1552	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1553	".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1554	".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1555	".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1556	".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1557	".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1558	".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1559	".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1560	".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1561	".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1562	);
1563	if (RT_FAILURE(rc))
1564	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1565	char *pszRegs = strchr(szDisAndRegs, '\n');
1566	*pszRegs++ = '\0';
1567	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1568
1569	/*
1570	* Disassemble one instruction at cs:[r\|e]ip.
1571	*/
1572	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1573	}
1574	return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult, ".");
1575	}
1576
1577
1578	/**
1579	* The 'rt' command.
1580	*
1581	* @returns VBox status.
1582	* @param pCmd Pointer to the command descriptor (as registered).
1583	* @param pCmdHlp Pointer to command helper functions.
1584	* @param pVM Pointer to the current VM (if any).
1585	* @param paArgs Pointer to (readonly) array of arguments.
1586	* @param cArgs Number of arguments in the array.
1587	*/
1588	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1589	{
1590	NOREF(pCmd); NOREF(pVM); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1591
1592	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1593	pDbgc->fRegTerse = !pDbgc->fRegTerse;
1594	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1595	}
1596
1597
1598	/**
1599	* The 't' command.
1600	*
1601	* @returns VBox status.
1602	* @param pCmd Pointer to the command descriptor (as registered).
1603	* @param pCmdHlp Pointer to command helper functions.
1604	* @param pVM Pointer to the current VM (if any).
1605	* @param paArgs Pointer to (readonly) array of arguments.
1606	* @param cArgs Number of arguments in the array.
1607	*/
1608	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1609	{
1610	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1611
1612	int rc = DBGFR3Step(pVM, pDbgc->idCpu);
1613	if (RT_SUCCESS(rc))
1614	pDbgc->fReady = false;
1615	else
1616	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1617
1618	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1619	return rc;
1620	}
1621
1622
1623	/**
1624	* The 'k', 'kg' and 'kh' commands.
1625	*
1626	* @returns VBox status.
1627	* @param pCmd Pointer to the command descriptor (as registered).
1628	* @param pCmdHlp Pointer to command helper functions.
1629	* @param pVM Pointer to the current VM (if any).
1630	* @param paArgs Pointer to (readonly) array of arguments.
1631	* @param cArgs Number of arguments in the array.
1632	*/
1633	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1634	{
1635	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1636
1637	/*
1638	* Figure which context we're called for and start walking that stack.
1639	*/
1640	int rc;
1641	PCDBGFSTACKFRAME pFirstFrame;
1642	bool const fGuest = pCmd->pszCmd[1] == 'g'
1643	\|\| (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1644	rc = DBGFR3StackWalkBegin(pVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1645	if (RT_FAILURE(rc))
1646	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to begin stack walk, rc=%Rrc\n", rc);
1647
1648	/*
1649	* Print header.
1650	* 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1651	*/
1652	uint32_t fBitFlags = 0;
1653	for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1654	pFrame;
1655	pFrame = DBGFR3StackWalkNext(pFrame))
1656	{
1657	uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT \| DBGFSTACKFRAME_FLAGS_32BIT \| DBGFSTACKFRAME_FLAGS_64BIT);
1658	if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1659	{
1660	if (fCurBitFlags != fBitFlags)
1661	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1662	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1663	pFrame->AddrFrame.Sel,
1664	(uint16_t)pFrame->AddrFrame.off,
1665	pFrame->AddrReturnFrame.Sel,
1666	(uint16_t)pFrame->AddrReturnFrame.off,
1667	(uint32_t)pFrame->AddrReturnPC.Sel,
1668	(uint32_t)pFrame->AddrReturnPC.off,
1669	pFrame->Args.au32[0],
1670	pFrame->Args.au32[1],
1671	pFrame->Args.au32[2],
1672	pFrame->Args.au32[3]);
1673	}
1674	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1675	{
1676	if (fCurBitFlags != fBitFlags)
1677	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1678	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1679	(uint32_t)pFrame->AddrFrame.off,
1680	(uint32_t)pFrame->AddrReturnFrame.off,
1681	(uint32_t)pFrame->AddrReturnPC.Sel,
1682	(uint32_t)pFrame->AddrReturnPC.off,
1683	pFrame->Args.au32[0],
1684	pFrame->Args.au32[1],
1685	pFrame->Args.au32[2],
1686	pFrame->Args.au32[3]);
1687	}
1688	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1689	{
1690	if (fCurBitFlags != fBitFlags)
1691	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1692	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%016RX64 %04RX16:%016RX64 %016RX64",
1693	(uint64_t)pFrame->AddrFrame.off,
1694	pFrame->AddrReturnFrame.Sel,
1695	(uint64_t)pFrame->AddrReturnFrame.off,
1696	(uint64_t)pFrame->AddrReturnPC.off);
1697	}
1698	if (RT_FAILURE(rc))
1699	break;
1700	if (!pFrame->pSymPC)
1701	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1702	fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1703	? " %RTsel:%016RGv"
1704	: fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1705	? " %RTsel:%08RGv"
1706	: " %RTsel:%04RGv"
1707	, pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1708	else
1709	{
1710	RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1711	if (offDisp > 0)
1712	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1713	else if (offDisp < 0)
1714	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1715	else
1716	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s", pFrame->pSymPC->szName);
1717	}
1718	if (RT_SUCCESS(rc) && pFrame->pLinePC)
1719	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1720	if (RT_SUCCESS(rc))
1721	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
1722	if (RT_FAILURE(rc))
1723	break;
1724
1725	fBitFlags = fCurBitFlags;
1726	}
1727
1728	DBGFR3StackWalkEnd(pFirstFrame);
1729
1730	NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1731	return rc;
1732	}
1733
1734
1735	static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1736	{
1737	/* GUEST64 */
1738	int rc;
1739
1740	const char *pszHyper = fHyper ? " HYPER" : "";
1741	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1742	if (pDesc->Gen.u1DescType)
1743	{
1744	static const char * const s_apszTypes[] =
1745	{
1746	"DataRO", /* 0 Read-Only */
1747	"DataRO", /* 1 Read-Only - Accessed */
1748	"DataRW", /* 2 Read/Write */
1749	"DataRW", /* 3 Read/Write - Accessed */
1750	"DownRO", /* 4 Expand-down, Read-Only */
1751	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1752	"DownRW", /* 6 Expand-down, Read/Write */
1753	"DownRO", /* 7 Expand-down, Read/Write - Accessed */
1754	"CodeEO", /* 8 Execute-Only */
1755	"CodeEO", /* 9 Execute-Only - Accessed */
1756	"CodeER", /* A Execute/Readable */
1757	"CodeER", /* B Execute/Readable - Accessed */
1758	"ConfE0", /* C Conforming, Execute-Only */
1759	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1760	"ConfER", /* E Conforming, Execute/Readable */
1761	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1762	};
1763	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1764	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1765	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1766	uint32_t u32Base = X86DESC_BASE(*pDesc);
1767	uint32_t cbLimit = X86DESC_LIMIT(*pDesc);
1768	if (pDesc->Gen.u1Granularity)
1769	cbLimit <<= PAGE_SHIFT;
1770
1771	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1772	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1773	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1774	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1775	}
1776	else
1777	{
1778	static const char * const s_apszTypes[] =
1779	{
1780	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1781	"Ill-1 ", /* 1 0001 Available 16-bit TSS */
1782	"LDT ", /* 2 0010 LDT */
1783	"Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1784	"Ill-4 ", /* 4 0100 16-bit Call Gate */
1785	"Ill-5 ", /* 5 0101 Task Gate */
1786	"Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1787	"Ill-7 ", /* 7 0111 16-bit Trap Gate */
1788	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1789	"Tss64A", /* 9 1001 Available 32-bit TSS */
1790	"Ill-A ", /* A 1010 Reserved (Illegal) */
1791	"Tss64B", /* B 1011 Busy 32-bit TSS */
1792	"Call64", /* C 1100 32-bit Call Gate */
1793	"Ill-D ", /* D 1101 Reserved (Illegal) */
1794	"Int64 ", /* E 1110 32-bit Interrupt Gate */
1795	"Trap64" /* F 1111 32-bit Trap Gate */
1796	};
1797	switch (pDesc->Gen.u4Type)
1798	{
1799	/* raw */
1800	case X86_SEL_TYPE_SYS_UNDEFINED:
1801	case X86_SEL_TYPE_SYS_UNDEFINED2:
1802	case X86_SEL_TYPE_SYS_UNDEFINED4:
1803	case X86_SEL_TYPE_SYS_UNDEFINED3:
1804	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1805	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1806	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1807	case X86_SEL_TYPE_SYS_286_INT_GATE:
1808	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1809	case X86_SEL_TYPE_SYS_TASK_GATE:
1810	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1811	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1812	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1813	break;
1814
1815	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1816	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1817	case X86_SEL_TYPE_SYS_LDT:
1818	{
1819	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1820	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1821	const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1822
1823	uint64_t u32Base = X86DESC64_BASE(*pDesc);
1824	uint32_t cbLimit = X86DESC_LIMIT(*pDesc);
1825
1826	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1827	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1828	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1829	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1830	pszHyper);
1831	if (pfDblEntry)
1832	*pfDblEntry = true;
1833	break;
1834	}
1835
1836	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1837	{
1838	unsigned cParams = pDesc->au8[4] & 0x1f;
1839	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1840	RTSEL sel = pDesc->au16[1];
1841	uint64_t off = pDesc->au16[0]
1842	\| ((uint64_t)pDesc->au16[3] << 16)
1843	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1844	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1845	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1846	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1847	if (pfDblEntry)
1848	*pfDblEntry = true;
1849	break;
1850	}
1851
1852	case X86_SEL_TYPE_SYS_386_INT_GATE:
1853	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1854	{
1855	RTSEL sel = pDesc->au16[1];
1856	uint64_t off = pDesc->au16[0]
1857	\| ((uint64_t)pDesc->au16[3] << 16)
1858	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1859	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1860	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1861	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1862	if (pfDblEntry)
1863	*pfDblEntry = true;
1864	break;
1865	}
1866
1867	/* impossible, just it's necessary to keep gcc happy. */
1868	default:
1869	return VINF_SUCCESS;
1870	}
1871	}
1872	return VINF_SUCCESS;
1873	}
1874
1875
1876	/**
1877	* Worker function that displays one descriptor entry (GDT, LDT, IDT).
1878	*
1879	* @returns pfnPrintf status code.
1880	* @param pCmdHlp The DBGC command helpers.
1881	* @param pDesc The descriptor to display.
1882	* @param iEntry The descriptor entry number.
1883	* @param fHyper Whether the selector belongs to the hypervisor or not.
1884	*/
1885	static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1886	{
1887	int rc;
1888
1889	const char *pszHyper = fHyper ? " HYPER" : "";
1890	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1891	if (pDesc->Gen.u1DescType)
1892	{
1893	static const char * const s_apszTypes[] =
1894	{
1895	"DataRO", /* 0 Read-Only */
1896	"DataRO", /* 1 Read-Only - Accessed */
1897	"DataRW", /* 2 Read/Write */
1898	"DataRW", /* 3 Read/Write - Accessed */
1899	"DownRO", /* 4 Expand-down, Read-Only */
1900	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1901	"DownRW", /* 6 Expand-down, Read/Write */
1902	"DownRO", /* 7 Expand-down, Read/Write - Accessed */
1903	"CodeEO", /* 8 Execute-Only */
1904	"CodeEO", /* 9 Execute-Only - Accessed */
1905	"CodeER", /* A Execute/Readable */
1906	"CodeER", /* B Execute/Readable - Accessed */
1907	"ConfE0", /* C Conforming, Execute-Only */
1908	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1909	"ConfER", /* E Conforming, Execute/Readable */
1910	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1911	};
1912	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1913	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1914	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1915	uint32_t u32Base = pDesc->Gen.u16BaseLow
1916	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1917	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1918	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1919	if (pDesc->Gen.u1Granularity)
1920	cbLimit <<= PAGE_SHIFT;
1921
1922	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1923	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1924	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1925	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1926	}
1927	else
1928	{
1929	static const char * const s_apszTypes[] =
1930	{
1931	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1932	"Tss16A", /* 1 0001 Available 16-bit TSS */
1933	"LDT ", /* 2 0010 LDT */
1934	"Tss16B", /* 3 0011 Busy 16-bit TSS */
1935	"Call16", /* 4 0100 16-bit Call Gate */
1936	"TaskG ", /* 5 0101 Task Gate */
1937	"Int16 ", /* 6 0110 16-bit Interrupt Gate */
1938	"Trap16", /* 7 0111 16-bit Trap Gate */
1939	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1940	"Tss32A", /* 9 1001 Available 32-bit TSS */
1941	"Ill-A ", /* A 1010 Reserved (Illegal) */
1942	"Tss32B", /* B 1011 Busy 32-bit TSS */
1943	"Call32", /* C 1100 32-bit Call Gate */
1944	"Ill-D ", /* D 1101 Reserved (Illegal) */
1945	"Int32 ", /* E 1110 32-bit Interrupt Gate */
1946	"Trap32" /* F 1111 32-bit Trap Gate */
1947	};
1948	switch (pDesc->Gen.u4Type)
1949	{
1950	/* raw */
1951	case X86_SEL_TYPE_SYS_UNDEFINED:
1952	case X86_SEL_TYPE_SYS_UNDEFINED2:
1953	case X86_SEL_TYPE_SYS_UNDEFINED4:
1954	case X86_SEL_TYPE_SYS_UNDEFINED3:
1955	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1956	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1957	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1958	break;
1959
1960	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1961	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1962	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1963	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1964	case X86_SEL_TYPE_SYS_LDT:
1965	{
1966	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1967	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1968	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1969	uint32_t u32Base = pDesc->Gen.u16BaseLow
1970	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1971	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1972	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1973	if (pDesc->Gen.u1Granularity)
1974	cbLimit <<= PAGE_SHIFT;
1975
1976	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1977	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1978	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1979	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1980	pszHyper);
1981	break;
1982	}
1983
1984	case X86_SEL_TYPE_SYS_TASK_GATE:
1985	{
1986	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s TSS=%04x DPL=%d %s%s\n",
1987	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1988	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1989	break;
1990	}
1991
1992	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1993	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1994	{
1995	unsigned cParams = pDesc->au8[4] & 0x1f;
1996	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1997	RTSEL sel = pDesc->au16[1];
1998	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
1999	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
2000	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2001	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
2002	break;
2003	}
2004
2005	case X86_SEL_TYPE_SYS_286_INT_GATE:
2006	case X86_SEL_TYPE_SYS_386_INT_GATE:
2007	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
2008	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
2009	{
2010	RTSEL sel = pDesc->au16[1];
2011	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
2012	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
2013	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2014	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
2015	break;
2016	}
2017
2018	/* impossible, just it's necessary to keep gcc happy. */
2019	default:
2020	return VINF_SUCCESS;
2021	}
2022	}
2023	return rc;
2024	}
2025
2026
2027	/**
2028	* The 'dg', 'dga', 'dl' and 'dla' commands.
2029	*
2030	* @returns VBox status.
2031	* @param pCmd Pointer to the command descriptor (as registered).
2032	* @param pCmdHlp Pointer to command helper functions.
2033	* @param pVM Pointer to the current VM (if any).
2034	* @param paArgs Pointer to (readonly) array of arguments.
2035	* @param cArgs Number of arguments in the array.
2036	*/
2037	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2038	{
2039	/*
2040	* Validate input.
2041	*/
2042	if (!pVM)
2043	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2044
2045	/*
2046	* Get the CPU mode, check which command variation this is
2047	* and fix a default parameter if needed.
2048	*/
2049	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2050	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
2051	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2052	bool fGdt = pCmd->pszCmd[1] == 'g';
2053	bool fAll = pCmd->pszCmd[2] == 'a';
2054	RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
2055
2056	DBGCVAR Var;
2057	if (!cArgs)
2058	{
2059	cArgs = 1;
2060	paArgs = &Var;
2061	Var.enmType = DBGCVAR_TYPE_NUMBER;
2062	Var.u.u64Number = 0;
2063	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2064	Var.u64Range = 1024;
2065	}
2066
2067	/*
2068	* Process the arguments.
2069	*/
2070	for (unsigned i = 0; i < cArgs; i++)
2071	{
2072	/*
2073	* Retrieve the selector value from the argument.
2074	* The parser may confuse pointers and numbers if more than one
2075	* argument is given, that that into account.
2076	*/
2077	/* check that what we got makes sense as we don't trust the parser yet. */
2078	if ( paArgs[i].enmType != DBGCVAR_TYPE_NUMBER
2079	&& !DBGCVAR_ISPOINTER(paArgs[i].enmType))
2080	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number or pointer type but %d.\n", i, paArgs[i].enmType);
2081	uint64_t u64;
2082	unsigned cSels = 1;
2083	switch (paArgs[i].enmType)
2084	{
2085	case DBGCVAR_TYPE_NUMBER:
2086	u64 = paArgs[i].u.u64Number;
2087	if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2088	cSels = RT_MIN(paArgs[i].u64Range, 1024);
2089	break;
2090	case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2091	case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2092	case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2093	case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2094	case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2095	default: u64 = _64K; break;
2096	}
2097	if (u64 < _64K)
2098	{
2099	unsigned Sel = (RTSEL)u64;
2100
2101	/*
2102	* Dump the specified range.
2103	*/
2104	bool fSingle = cSels == 1;
2105	while ( cSels-- > 0
2106	&& Sel < _64K)
2107	{
2108	DBGFSELINFO SelInfo;
2109	int rc = DBGFR3SelQueryInfo(pVM, pDbgc->idCpu, Sel \| SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2110	if (RT_SUCCESS(rc))
2111	{
2112	if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2113	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x RealM Bas=%04x Lim=%04x\n",
2114	Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2115	else if ( fAll
2116	\|\| fSingle
2117	\|\| SelInfo.u.Raw.Gen.u1Present)
2118	{
2119	if (enmMode == CPUMMODE_PROTECTED)
2120	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2121	else
2122	{
2123	bool fDblSkip = false;
2124	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2125	if (fDblSkip)
2126	Sel += 4;
2127	}
2128	}
2129	}
2130	else
2131	{
2132	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %Rrc\n", Sel, rc);
2133	if (!fAll)
2134	return rc;
2135	}
2136	if (RT_FAILURE(rc))
2137	return rc;
2138
2139	/* next */
2140	Sel += 8;
2141	}
2142	}
2143	else
2144	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds\n", u64);
2145	}
2146
2147	NOREF(pResult);
2148	return VINF_SUCCESS;
2149	}
2150
2151
2152	/**
2153	* The 'di' and 'dia' commands.
2154	*
2155	* @returns VBox status.
2156	* @param pCmd Pointer to the command descriptor (as registered).
2157	* @param pCmdHlp Pointer to command helper functions.
2158	* @param pVM Pointer to the current VM (if any).
2159	* @param paArgs Pointer to (readonly) array of arguments.
2160	* @param cArgs Number of arguments in the array.
2161	*/
2162	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2163	{
2164	/*
2165	* Validate input.
2166	*/
2167	if (!pVM)
2168	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2169
2170	/*
2171	* Establish some stuff like the current IDTR and CPU mode,
2172	* and fix a default parameter.
2173	*/
2174	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2175	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
2176	uint16_t cbLimit;
2177	RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2178	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2179	unsigned cbEntry;
2180	switch (enmMode)
2181	{
2182	case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2183	case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2184	case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2185	default:
2186	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid CPU mode %d.\n", enmMode);
2187	}
2188
2189	bool fAll = pCmd->pszCmd[2] == 'a';
2190	DBGCVAR Var;
2191	if (!cArgs)
2192	{
2193	cArgs = 1;
2194	paArgs = &Var;
2195	Var.enmType = DBGCVAR_TYPE_NUMBER;
2196	Var.u.u64Number = 0;
2197	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2198	Var.u64Range = 256;
2199	}
2200
2201	/*
2202	* Process the arguments.
2203	*/
2204	for (unsigned i = 0; i < cArgs; i++)
2205	{
2206	/* check that what we got makes sense as we don't trust the parser yet. */
2207	if (paArgs[i].enmType != DBGCVAR_TYPE_NUMBER)
2208	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number type but %d.\n", i, paArgs[i].enmType);
2209	if (paArgs[i].u.u64Number < 256)
2210	{
2211	RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2212	unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2213	? paArgs[i].u64Range
2214	: 1;
2215	bool fSingle = cInts == 1;
2216	while ( cInts-- > 0
2217	&& iInt < 256)
2218	{
2219	/*
2220	* Try read it.
2221	*/
2222	union
2223	{
2224	RTFAR16 Real;
2225	X86DESC Prot;
2226	X86DESC64 Long;
2227	} u;
2228	if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2229	{
2230	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x not within the IDT\n", (unsigned)iInt);
2231	if (!fAll && !fSingle)
2232	return VINF_SUCCESS;
2233	}
2234	DBGCVAR AddrVar;
2235	AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2236	AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2237	AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2238	int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &u, cbEntry, &AddrVar, NULL);
2239	if (RT_FAILURE(rc))
2240	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2241
2242	/*
2243	* Display it.
2244	*/
2245	switch (enmMode)
2246	{
2247	case CPUMMODE_REAL:
2248	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2249	/** @todo resolve 16:16 IDTE to a symbol */
2250	break;
2251	case CPUMMODE_PROTECTED:
2252	if (fAll \|\| fSingle \|\| u.Prot.Gen.u1Present)
2253	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2254	break;
2255	case CPUMMODE_LONG:
2256	if (fAll \|\| fSingle \|\| u.Long.Gen.u1Present)
2257	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2258	break;
2259	default: break; /* to shut up gcc */
2260	}
2261	if (RT_FAILURE(rc))
2262	return rc;
2263
2264	/* next */
2265	iInt++;
2266	}
2267	}
2268	else
2269	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2270	}
2271
2272	NOREF(pResult);
2273	return VINF_SUCCESS;
2274	}
2275
2276
2277	/**
2278	* The 'da', 'dq', 'dd', 'dw' and 'db' commands.
2279	*
2280	* @returns VBox status.
2281	* @param pCmd Pointer to the command descriptor (as registered).
2282	* @param pCmdHlp Pointer to command helper functions.
2283	* @param pVM Pointer to the current VM (if any).
2284	* @param paArgs Pointer to (readonly) array of arguments.
2285	* @param cArgs Number of arguments in the array.
2286	*/
2287	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2288	{
2289	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2290
2291	/*
2292	* Validate input.
2293	*/
2294	if ( cArgs > 1
2295	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2296	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2297	if (!pVM)
2298	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2299
2300	/*
2301	* Figure out the element size.
2302	*/
2303	unsigned cbElement;
2304	bool fAscii = false;
2305	switch (pCmd->pszCmd[1])
2306	{
2307	default:
2308	case 'b': cbElement = 1; break;
2309	case 'w': cbElement = 2; break;
2310	case 'd': cbElement = 4; break;
2311	case 'q': cbElement = 8; break;
2312	case 'a':
2313	cbElement = 1;
2314	fAscii = true;
2315	break;
2316	case '\0':
2317	fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2318	cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2319	if (!cbElement)
2320	cbElement = 1;
2321	break;
2322	}
2323
2324	/*
2325	* Find address.
2326	*/
2327	if (!cArgs)
2328	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2329	else
2330	pDbgc->DumpPos = paArgs[0];
2331
2332	/*
2333	* Range.
2334	*/
2335	switch (pDbgc->DumpPos.enmRangeType)
2336	{
2337	case DBGCVAR_RANGE_NONE:
2338	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2339	pDbgc->DumpPos.u64Range = 0x60;
2340	break;
2341
2342	case DBGCVAR_RANGE_ELEMENTS:
2343	if (pDbgc->DumpPos.u64Range > 2048)
2344	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many elements requested. Max is 2048 elements.\n");
2345	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2346	pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2347	break;
2348
2349	case DBGCVAR_RANGE_BYTES:
2350	if (pDbgc->DumpPos.u64Range > 65536)
2351	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
2352	break;
2353
2354	default:
2355	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2356	}
2357
2358	pDbgc->pLastPos = &pDbgc->DumpPos;
2359
2360	/*
2361	* Do the dumping.
2362	*/
2363	pDbgc->cbDumpElement = cbElement \| (fAscii << 31);
2364	int cbLeft = (int)pDbgc->DumpPos.u64Range;
2365	uint8_t u8Prev = '\0';
2366	for (;;)
2367	{
2368	/*
2369	* Read memory.
2370	*/
2371	char achBuffer[16];
2372	size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2373	size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2374	int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2375	if (RT_FAILURE(rc))
2376	{
2377	if (u8Prev && u8Prev != '\n')
2378	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2379	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2380	}
2381
2382	/*
2383	* Display it.
2384	*/
2385	memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2386	if (!fAscii)
2387	{
2388	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:", &pDbgc->DumpPos);
2389	unsigned i;
2390	for (i = 0; i < cb; i += cbElement)
2391	{
2392	const char *pszSpace = " ";
2393	if (cbElement <= 2 && i == 8 && !fAscii)
2394	pszSpace = "-";
2395	switch (cbElement)
2396	{
2397	case 1: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%02x", pszSpace, (uint8_t )&achBuffer[i]); break;
2398	case 2: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%04x", pszSpace, (uint16_t )&achBuffer[i]); break;
2399	case 4: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%08x", pszSpace, (uint32_t )&achBuffer[i]); break;
2400	case 8: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%016llx", pszSpace, (uint64_t )&achBuffer[i]); break;
2401	}
2402	}
2403
2404	/* chars column */
2405	if (pDbgc->cbDumpElement == 1)
2406	{
2407	while (i++ < sizeof(achBuffer))
2408	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2409	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2410	for (i = 0; i < cb; i += cbElement)
2411	{
2412	uint8_t u8 = (uint8_t )&achBuffer[i];
2413	if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2414	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2415	else
2416	pCmdHlp->pfnPrintf(pCmdHlp, NULL, ".");
2417	}
2418	}
2419	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2420	}
2421	else
2422	{
2423	/*
2424	* We print up to the first zero and stop there.
2425	* Only printables + '\t' and '\n' are printed.
2426	*/
2427	if (!u8Prev)
2428	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DumpPos);
2429	uint8_t u8 = '\0';
2430	unsigned i;
2431	for (i = 0; i < cb; i++)
2432	{
2433	u8Prev = u8;
2434	u8 = (uint8_t )&achBuffer[i];
2435	if ( u8 < 127
2436	&& ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2437	\|\| u8 == '\t'
2438	\|\| u8 == '\n'))
2439	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2440	else if (!u8)
2441	break;
2442	else
2443	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\\x%x", u8);
2444	}
2445	if (u8 == '\0')
2446	cb = cbLeft = i + 1;
2447	if (cbLeft - cb <= 0 && u8Prev != '\n')
2448	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2449	}
2450
2451	/*
2452	* Advance
2453	*/
2454	cbLeft -= (int)cb;
2455	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2456	if (RT_FAILURE(rc))
2457	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2458	if (cbLeft <= 0)
2459	break;
2460	}
2461
2462	NOREF(pCmd); NOREF(pResult);
2463	return VINF_SUCCESS;
2464	}
2465
2466
2467	/**
2468	* Best guess at which paging mode currently applies to the guest
2469	* paging structures.
2470	*
2471	* This have to come up with a decent answer even when the guest
2472	* is in non-paged protected mode or real mode.
2473	*
2474	* @returns cr3.
2475	* @param pDbgc The DBGC instance.
2476	* @param pfPAE Where to store the page address extension indicator.
2477	* @param pfLME Where to store the long mode enabled indicator.
2478	* @param pfPSE Where to store the page size extension indicator.
2479	* @param pfPGE Where to store the page global enabled indicator.
2480	* @param pfNXE Where to store the no-execution enabled indicator.
2481	*/
2482	static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2483	{
2484	PVMCPU pVCpu = VMMGetCpuById(pDbgc->pVM, pDbgc->idCpu);
2485	RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2486	*pfPSE = !!(cr4 & X86_CR4_PSE);
2487	*pfPGE = !!(cr4 & X86_CR4_PGE);
2488	if (cr4 & X86_CR4_PAE)
2489	{
2490	*pfPSE = true;
2491	*pfPAE = true;
2492	}
2493	else
2494	*pfPAE = false;
2495
2496	*pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2497	pfNXE = false; / GUEST64 GUESTNX */
2498	return CPUMGetGuestCR3(pVCpu);
2499	}
2500
2501
2502	/**
2503	* Determine the shadow paging mode.
2504	*
2505	* @returns cr3.
2506	* @param pDbgc The DBGC instance.
2507	* @param pfPAE Where to store the page address extension indicator.
2508	* @param pfLME Where to store the long mode enabled indicator.
2509	* @param pfPSE Where to store the page size extension indicator.
2510	* @param pfPGE Where to store the page global enabled indicator.
2511	* @param pfNXE Where to store the no-execution enabled indicator.
2512	*/
2513	static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2514	{
2515	PVMCPU pVCpu = VMMGetCpuById(pDbgc->pVM, pDbgc->idCpu);
2516
2517	*pfPSE = true;
2518	*pfPGE = false;
2519	switch (PGMGetShadowMode(pVCpu))
2520	{
2521	default:
2522	case PGMMODE_32_BIT:
2523	pfPAE = pfLME = *pfNXE = false;
2524	break;
2525	case PGMMODE_PAE:
2526	pfLME = pfNXE = false;
2527	*pfPAE = true;
2528	break;
2529	case PGMMODE_PAE_NX:
2530	*pfLME = false;
2531	pfPAE = pfNXE = true;
2532	break;
2533	case PGMMODE_AMD64:
2534	*pfNXE = false;
2535	pfPAE = pfLME = true;
2536	break;
2537	case PGMMODE_AMD64_NX:
2538	pfPAE = pfLME = *pfNXE = true;
2539	break;
2540	}
2541	return PGMGetHyperCR3(pVCpu);
2542	}
2543
2544
2545	/**
2546	* The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh' commands.
2547	*
2548	* @returns VBox status.
2549	* @param pCmd Pointer to the command descriptor (as registered).
2550	* @param pCmdHlp Pointer to command helper functions.
2551	* @param pVM Pointer to the current VM (if any).
2552	* @param paArgs Pointer to (readonly) array of arguments.
2553	* @param cArgs Number of arguments in the array.
2554	*/
2555	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2556	{
2557	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2558
2559	/*
2560	* Validate input.
2561	*/
2562	if ( cArgs > 1
2563	\|\| (cArgs == 1 && pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2564	\|\| (cArgs == 1 && pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2565	)
2566	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2567	if (!pVM)
2568	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2569
2570	/*
2571	* Guest or shadow page directories? Get the paging parameters.
2572	*/
2573	bool fGuest = pCmd->pszCmd[3] != 'h';
2574	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2575	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2576	? pDbgc->fRegCtxGuest
2577	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2578
2579	bool fPAE, fLME, fPSE, fPGE, fNXE;
2580	uint64_t cr3 = fGuest
2581	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2582	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2583	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2584
2585	/*
2586	* Setup default argument if none was specified.
2587	* Fix address / index confusion.
2588	*/
2589	DBGCVAR VarDefault;
2590	if (!cArgs)
2591	{
2592	if (pCmd->pszCmd[3] == 'a')
2593	{
2594	if (fLME \|\| fPAE)
2595	return DBGCCmdHlpPrintf(pCmdHlp, "Default argument for 'dpda' hasn't been fully implemented yet. Try with an address or use one of the other commands.\n");
2596	if (fGuest)
2597	DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2598	else
2599	DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2600	}
2601	else
2602	DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2603	paArgs = &VarDefault;
2604	cArgs = 1;
2605	}
2606	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2607	{
2608	Assert(pCmd->pszCmd[3] != 'a');
2609	VarDefault = paArgs[0];
2610	if (VarDefault.u.u64Number <= 1024)
2611	{
2612	if (fPAE)
2613	return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2614	if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2615	return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2616	VarDefault.u.u64Number <<= X86_PD_SHIFT;
2617	}
2618	VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2619	paArgs = &VarDefault;
2620	}
2621
2622	/*
2623	* Locate the PDE to start displaying at.
2624	*
2625	* The 'dpda' command takes the address of a PDE, while the others are guest
2626	* virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2627	* while the others require us to do all the tedious walking thru the paging
2628	* hierarchy to find the intended PDE.
2629	*/
2630	unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2631	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2632	DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2633	unsigned cEntries; /* The number of entries to display. */
2634	unsigned cEntriesMax; /* The max number of entries to display. */
2635	int rc;
2636	if (pCmd->pszCmd[3] == 'a')
2637	{
2638	VarPDEAddr = paArgs[0];
2639	switch (VarPDEAddr.enmRangeType)
2640	{
2641	case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2642	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2643	default: cEntries = 10; break;
2644	}
2645	cEntriesMax = PAGE_SIZE / cbEntry;
2646	}
2647	else
2648	{
2649	/*
2650	* Determine the range.
2651	*/
2652	switch (paArgs[0].enmRangeType)
2653	{
2654	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2655	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2656	default: cEntries = 10; break;
2657	}
2658
2659	/*
2660	* Normalize the input address, it must be a flat GC address.
2661	*/
2662	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2663	if (RT_FAILURE(rc))
2664	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2665	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2666	{
2667	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2668	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2669	}
2670	if (fPAE)
2671	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2672	else
2673	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2674
2675	/*
2676	* Do the paging walk until we get to the page directory.
2677	*/
2678	DBGCVAR VarCur;
2679	if (fGuest)
2680	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2681	else
2682	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2683	if (fLME)
2684	{
2685	/* Page Map Level 4 Lookup. */
2686	/* Check if it's a valid address first? */
2687	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2688	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2689	X86PML4E Pml4e;
2690	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2691	if (RT_FAILURE(rc))
2692	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2693	if (!Pml4e.n.u1Present)
2694	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2695
2696	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2697	Assert(fPAE);
2698	}
2699	if (fPAE)
2700	{
2701	/* Page directory pointer table. */
2702	X86PDPE Pdpe;
2703	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2704	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2705	if (RT_FAILURE(rc))
2706	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2707	if (!Pdpe.n.u1Present)
2708	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2709
2710	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2711	VarPDEAddr = VarCur;
2712	VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2713	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2714	}
2715	else
2716	{
2717	/* 32-bit legacy - CR3 == page directory. */
2718	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2719	VarPDEAddr = VarCur;
2720	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2721	}
2722	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2723	iEntry /= cbEntry;
2724	}
2725
2726	/* adjust cEntries */
2727	cEntries = RT_MAX(1, cEntries);
2728	cEntries = RT_MIN(cEntries, cEntriesMax);
2729
2730	/*
2731	* The display loop.
2732	*/
2733	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2734	&VarPDEAddr, iEntry);
2735	do
2736	{
2737	/*
2738	* Read.
2739	*/
2740	X86PDEPAE Pde;
2741	Pde.u = 0;
2742	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, cbEntry, &VarPDEAddr, NULL);
2743	if (RT_FAILURE(rc))
2744	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2745
2746	/*
2747	* Display.
2748	*/
2749	if (iEntry != ~0U)
2750	{
2751	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2752	iEntry++;
2753	}
2754	if (fPSE && Pde.b.u1Size)
2755	DBGCCmdHlpPrintf(pCmdHlp,
2756	fPAE
2757	? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2758	: "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2759	Pde.u,
2760	Pde.u & X86_PDE_PAE_PG_MASK,
2761	Pde.b.u1Present ? "p " : "np",
2762	Pde.b.u1Write ? "w" : "r",
2763	Pde.b.u1User ? "u" : "s",
2764	Pde.b.u1Accessed ? "a " : "na",
2765	Pde.b.u1Dirty ? "d " : "nd",
2766	Pde.b.u3Available,
2767	Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2768	Pde.b.u1WriteThru ? "pwt" : " ",
2769	Pde.b.u1CacheDisable ? "pcd" : " ",
2770	Pde.b.u1PAT ? "pat" : "",
2771	Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2772	else
2773	DBGCCmdHlpPrintf(pCmdHlp,
2774	fPAE
2775	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2776	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2777	Pde.u,
2778	Pde.u & X86_PDE_PAE_PG_MASK,
2779	Pde.n.u1Present ? "p " : "np",
2780	Pde.n.u1Write ? "w" : "r",
2781	Pde.n.u1User ? "u" : "s",
2782	Pde.n.u1Accessed ? "a " : "na",
2783	Pde.u & RT_BIT(6) ? "6 " : " ",
2784	Pde.n.u3Available,
2785	Pde.u & RT_BIT(8) ? "8" : " ",
2786	Pde.n.u1WriteThru ? "pwt" : " ",
2787	Pde.n.u1CacheDisable ? "pcd" : " ",
2788	Pde.u & RT_BIT(7) ? "7" : "",
2789	Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2790	if (Pde.u & UINT64_C(0x7fff000000000000))
2791	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2792	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2793	if (RT_FAILURE(rc))
2794	return rc;
2795
2796	/*
2797	* Advance.
2798	*/
2799	VarPDEAddr.u.u64Number += cbEntry;
2800	if (iEntry != ~0U)
2801	VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2802	} while (cEntries-- > 0);
2803
2804	NOREF(pResult);
2805	return VINF_SUCCESS;
2806	}
2807
2808
2809	/**
2810	* The 'dpdb' command.
2811	*
2812	* @returns VBox status.
2813	* @param pCmd Pointer to the command descriptor (as registered).
2814	* @param pCmdHlp Pointer to command helper functions.
2815	* @param pVM Pointer to the current VM (if any).
2816	* @param paArgs Pointer to (readonly) array of arguments.
2817	* @param cArgs Number of arguments in the array.
2818	*/
2819	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2820	{
2821	if (!pVM)
2822	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2823	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2824	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2825	if (RT_FAILURE(rc1))
2826	return rc1;
2827	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
2828	return rc2;
2829	}
2830
2831
2832	/**
2833	* The 'dph*' commands and main part of 'm'.
2834	*
2835	* @returns VBox status.
2836	* @param pCmd Pointer to the command descriptor (as registered).
2837	* @param pCmdHlp Pointer to command helper functions.
2838	* @param pVM Pointer to the current VM (if any).
2839	* @param paArgs Pointer to (readonly) array of arguments.
2840	* @param cArgs Number of arguments in the array.
2841	*/
2842	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2843	{
2844	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2845	if (!pVM)
2846	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
2847
2848	/*
2849	* Figure the context and base flags.
2850	*/
2851	uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO \| DBGFPGDMP_FLAGS_PRINT_CR3;
2852	if (pCmd->pszCmd[0] == 'm')
2853	fFlags \|= DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW;
2854	else if (pCmd->pszCmd[3] == '\0')
2855	fFlags \|= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2856	else if (pCmd->pszCmd[3] == 'g')
2857	fFlags \|= DBGFPGDMP_FLAGS_GUEST;
2858	else if (pCmd->pszCmd[3] == 'h')
2859	fFlags \|= DBGFPGDMP_FLAGS_SHADOW;
2860	else
2861	AssertFailed();
2862
2863	if (pDbgc->cPagingHierarchyDumps == 0)
2864	fFlags \|= DBGFPGDMP_FLAGS_HEADER;
2865	pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2866
2867	/*
2868	* Get the range.
2869	*/
2870	PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2871	RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2872	int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2873	if (RT_FAILURE(rc))
2874	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2875
2876	uint64_t cbRange;
2877	rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2878	if (RT_FAILURE(rc))
2879	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2880
2881	RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2882	if (cbRange >= GCPtrLast)
2883	GCPtrLast = RTGCPTR_MAX;
2884	else if (!cbRange)
2885	GCPtrLast = GCPtrFirst;
2886	else
2887	GCPtrLast = GCPtrFirst + cbRange - 1;
2888
2889	/*
2890	* Do we have a CR3?
2891	*/
2892	uint64_t cr3 = 0;
2893	if (cArgs > 1)
2894	{
2895	if ((fFlags & (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW))
2896	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2897	if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2898	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2899	cr3 = paArgs[1].u.u64Number;
2900	}
2901	else
2902	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_CR3;
2903
2904	/*
2905	* Do we have a mode?
2906	*/
2907	if (cArgs > 2)
2908	{
2909	if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2910	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2911	static const struct MODETOFLAGS
2912	{
2913	const char *pszName;
2914	uint32_t fFlags;
2915	} s_aModeToFlags[] =
2916	{
2917	{ "ept", DBGFPGDMP_FLAGS_EPT },
2918	{ "legacy", 0 },
2919	{ "legacy-np", DBGFPGDMP_FLAGS_NP },
2920	{ "pse", DBGFPGDMP_FLAGS_PSE },
2921	{ "pse-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_NP },
2922	{ "pae", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE },
2923	{ "pae-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NP },
2924	{ "pae-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE },
2925	{ "pae-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP },
2926	{ "long", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME },
2927	{ "long-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NP },
2928	{ "long-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE },
2929	{ "long-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP }
2930	};
2931	int i = RT_ELEMENTS(s_aModeToFlags);
2932	while (i-- > 0)
2933	if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2934	{
2935	fFlags \|= s_aModeToFlags[i].fFlags;
2936	break;
2937	}
2938	if (i < 0)
2939	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2940	}
2941	else
2942	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_MODE;
2943
2944	/*
2945	* Call the worker.
2946	*/
2947	rc = DBGFR3PagingDumpEx(pVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /cMaxDepth/,
2948	DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2949	if (RT_FAILURE(rc))
2950	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2951	return VINF_SUCCESS;
2952	}
2953
2954
2955
2956	/**
2957	* The 'dpg*' commands.
2958	*
2959	* @returns VBox status.
2960	* @param pCmd Pointer to the command descriptor (as registered).
2961	* @param pCmdHlp Pointer to command helper functions.
2962	* @param pVM Pointer to the current VM (if any).
2963	* @param paArgs Pointer to (readonly) array of arguments.
2964	* @param cArgs Number of arguments in the array.
2965	*/
2966	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2967	{
2968	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2969
2970	/*
2971	* Validate input.
2972	*/
2973	if ( cArgs != 1
2974	\|\| (pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2975	\|\| (pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2976	)
2977	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2978	if (!pVM)
2979	return DBGCCmdHlpPrintf(pCmdHlp, "error: No VM.\n");
2980
2981	/*
2982	* Guest or shadow page tables? Get the paging parameters.
2983	*/
2984	bool fGuest = pCmd->pszCmd[3] != 'h';
2985	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2986	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2987	? pDbgc->fRegCtxGuest
2988	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2989
2990	bool fPAE, fLME, fPSE, fPGE, fNXE;
2991	uint64_t cr3 = fGuest
2992	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2993	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2994	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2995
2996	/*
2997	* Locate the PTE to start displaying at.
2998	*
2999	* The 'dpta' command takes the address of a PTE, while the others are guest
3000	* virtual address which PTEs should be displayed. So, 'pdta' is rather simple
3001	* while the others require us to do all the tedious walking thru the paging
3002	* hierarchy to find the intended PTE.
3003	*/
3004	unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
3005	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
3006	DBGCVAR VarPTEAddr; /* The address of the current PTE. */
3007	unsigned cEntries; /* The number of entries to display. */
3008	unsigned cEntriesMax; /* The max number of entries to display. */
3009	int rc;
3010	if (pCmd->pszCmd[3] == 'a')
3011	{
3012	VarPTEAddr = paArgs[0];
3013	switch (VarPTEAddr.enmRangeType)
3014	{
3015	case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
3016	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
3017	default: cEntries = 10; break;
3018	}
3019	cEntriesMax = PAGE_SIZE / cbEntry;
3020	}
3021	else
3022	{
3023	/*
3024	* Determine the range.
3025	*/
3026	switch (paArgs[0].enmRangeType)
3027	{
3028	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
3029	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
3030	default: cEntries = 10; break;
3031	}
3032
3033	/*
3034	* Normalize the input address, it must be a flat GC address.
3035	*/
3036	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
3037	if (RT_FAILURE(rc))
3038	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3039	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
3040	{
3041	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
3042	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
3043	}
3044	VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
3045
3046	/*
3047	* Do the paging walk until we get to the page table.
3048	*/
3049	DBGCVAR VarCur;
3050	if (fGuest)
3051	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
3052	else
3053	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
3054	if (fLME)
3055	{
3056	/* Page Map Level 4 Lookup. */
3057	/* Check if it's a valid address first? */
3058	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
3059	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
3060	X86PML4E Pml4e;
3061	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
3062	if (RT_FAILURE(rc))
3063	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
3064	if (!Pml4e.n.u1Present)
3065	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
3066
3067	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
3068	Assert(fPAE);
3069	}
3070	if (fPAE)
3071	{
3072	/* Page directory pointer table. */
3073	X86PDPE Pdpe;
3074	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
3075	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
3076	if (RT_FAILURE(rc))
3077	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
3078	if (!Pdpe.n.u1Present)
3079	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
3080
3081	VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
3082
3083	/* Page directory (PAE). */
3084	X86PDEPAE Pde;
3085	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
3086	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
3087	if (RT_FAILURE(rc))
3088	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3089	if (!Pde.n.u1Present)
3090	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3091	if (fPSE && Pde.n.u1Size)
3092	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3093
3094	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
3095	VarPTEAddr = VarCur;
3096	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
3097	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
3098	}
3099	else
3100	{
3101	/* Page directory (legacy). */
3102	X86PDE Pde;
3103	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
3104	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
3105	if (RT_FAILURE(rc))
3106	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3107	if (!Pde.n.u1Present)
3108	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3109	if (fPSE && Pde.n.u1Size)
3110	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3111
3112	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
3113	VarPTEAddr = VarCur;
3114	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
3115	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
3116	}
3117	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
3118	iEntry /= cbEntry;
3119	}
3120
3121	/* adjust cEntries */
3122	cEntries = RT_MAX(1, cEntries);
3123	cEntries = RT_MIN(cEntries, cEntriesMax);
3124
3125	/*
3126	* The display loop.
3127	*/
3128	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3129	&VarPTEAddr, &VarGCPtr, iEntry);
3130	do
3131	{
3132	/*
3133	* Read.
3134	*/
3135	X86PTEPAE Pte;
3136	Pte.u = 0;
3137	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pte, cbEntry, &VarPTEAddr, NULL);
3138	if (RT_FAILURE(rc))
3139	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3140
3141	/*
3142	* Display.
3143	*/
3144	if (iEntry != ~0U)
3145	{
3146	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3147	iEntry++;
3148	}
3149	DBGCCmdHlpPrintf(pCmdHlp,
3150	fPAE
3151	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3152	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3153	Pte.u,
3154	Pte.u & X86_PTE_PAE_PG_MASK,
3155	Pte.n.u1Present ? "p " : "np",
3156	Pte.n.u1Write ? "w" : "r",
3157	Pte.n.u1User ? "u" : "s",
3158	Pte.n.u1Accessed ? "a " : "na",
3159	Pte.n.u1Dirty ? "d " : "nd",
3160	Pte.n.u3Available,
3161	Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3162	Pte.n.u1WriteThru ? "pwt" : " ",
3163	Pte.n.u1CacheDisable ? "pcd" : " ",
3164	Pte.n.u1PAT ? "pat" : " ",
3165	Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3166	);
3167	if (Pte.u & UINT64_C(0x7fff000000000000))
3168	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3169	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3170	if (RT_FAILURE(rc))
3171	return rc;
3172
3173	/*
3174	* Advance.
3175	*/
3176	VarPTEAddr.u.u64Number += cbEntry;
3177	if (iEntry != ~0U)
3178	VarGCPtr.u.GCFlat += PAGE_SIZE;
3179	} while (cEntries-- > 0);
3180
3181	NOREF(pResult);
3182	return VINF_SUCCESS;
3183	}
3184
3185
3186	/**
3187	* The 'dptb' command.
3188	*
3189	* @returns VBox status.
3190	* @param pCmd Pointer to the command descriptor (as registered).
3191	* @param pCmdHlp Pointer to command helper functions.
3192	* @param pVM Pointer to the current VM (if any).
3193	* @param paArgs Pointer to (readonly) array of arguments.
3194	* @param cArgs Number of arguments in the array.
3195	*/
3196	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3197	{
3198	if (!pVM)
3199	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
3200	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3201	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3202	if (RT_FAILURE(rc1))
3203	return rc1;
3204	NOREF(pCmd); NOREF(cArgs); NOREF(pResult);
3205	return rc2;
3206	}
3207
3208
3209	/**
3210	* The 'dt' command.
3211	*
3212	* @returns VBox status.
3213	* @param pCmd Pointer to the command descriptor (as registered).
3214	* @param pCmdHlp Pointer to command helper functions.
3215	* @param pVM Pointer to the current VM (if any).
3216	* @param paArgs Pointer to (readonly) array of arguments.
3217	* @param cArgs Number of arguments in the array.
3218	*/
3219	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
3220	{
3221	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3222	int rc;
3223
3224	if (!pVM)
3225	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
3226	if ( cArgs > 1
3227	\|\| (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_STRING)
3228	\|\| (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL))
3229	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet...\n");
3230
3231	/*
3232	* Check if the command indicates the type.
3233	*/
3234	enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3235	if (!strcmp(pCmd->pszCmd, "dt16"))
3236	enmTssType = kTss16;
3237	else if (!strcmp(pCmd->pszCmd, "dt32"))
3238	enmTssType = kTss32;
3239	else if (!strcmp(pCmd->pszCmd, "dt64"))
3240	enmTssType = kTss64;
3241
3242	/*
3243	* We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3244	*/
3245	uint32_t SelTss = UINT32_MAX;
3246	DBGCVAR VarTssAddr;
3247	if (cArgs == 0)
3248	{
3249	/** @todo consider querying the hidden bits instead (missing API). */
3250	uint16_t SelTR;
3251	rc = DBGFR3RegCpuQueryU16(pVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3252	if (RT_FAILURE(rc))
3253	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3254	DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3255	SelTss = SelTR;
3256	}
3257	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3258	{
3259	if (paArgs[0].u.u64Number < 0xffff)
3260	DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3261	else
3262	{
3263	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3264	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3265	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3266	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3267	{
3268	VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3269	VarTssAddr.u64Range = paArgs[0].u64Range;
3270	}
3271	}
3272	}
3273	else
3274	VarTssAddr = paArgs[0];
3275
3276	/*
3277	* Deal with TSS:ign by means of the GDT.
3278	*/
3279	if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3280	{
3281	SelTss = VarTssAddr.u.GCFar.sel;
3282	DBGFSELINFO SelInfo;
3283	rc = DBGFR3SelQueryInfo(pVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3284	if (RT_FAILURE(rc))
3285	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3286	pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3287
3288	if (SelInfo.u.Raw.Gen.u1DescType)
3289	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3290
3291	switch (SelInfo.u.Raw.Gen.u4Type)
3292	{
3293	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3294	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3295	if (enmTssType == kTssToBeDetermined)
3296	enmTssType = kTss16;
3297	break;
3298
3299	case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3300	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3301	if (enmTssType == kTssToBeDetermined)
3302	enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3303	break;
3304
3305	default:
3306	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3307	VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3308	}
3309
3310	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3311	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3312	}
3313
3314	/*
3315	* Determine the TSS type if none is currently given.
3316	*/
3317	if (enmTssType == kTssToBeDetermined)
3318	{
3319	if ( VarTssAddr.u64Range > 0
3320	&& VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3321	enmTssType = kTss16;
3322	else
3323	{
3324	uint64_t uEfer;
3325	rc = DBGFR3RegCpuQueryU64(pVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3326	if ( RT_FAILURE(rc)
3327	\|\| !(uEfer & MSR_K6_EFER_LMA) )
3328	enmTssType = kTss32;
3329	else
3330	enmTssType = kTss64;
3331	}
3332	}
3333
3334	/*
3335	* Figure the min/max sizes.
3336	* ASSUMES max TSS size is 64 KB.
3337	*/
3338	uint32_t cbTssMin;
3339	uint32_t cbTssMax;
3340	switch (enmTssType)
3341	{
3342	case kTss16:
3343	cbTssMin = cbTssMax = sizeof(X86TSS16);
3344	break;
3345	case kTss32:
3346	cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3347	cbTssMax = _64K;
3348	break;
3349	case kTss64:
3350	cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3351	cbTssMax = _64K;
3352	break;
3353	default:
3354	AssertFailedReturn(VERR_INTERNAL_ERROR);
3355	}
3356	uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3357	if (cbTss == 0)
3358	cbTss = cbTssMin;
3359	else if (cbTss < cbTssMin)
3360	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3361	cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3362	else if (cbTss > cbTssMax)
3363	cbTss = cbTssMax;
3364	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3365
3366	/*
3367	* Read the TSS into a temporary buffer.
3368	*/
3369	uint8_t abBuf[_64K];
3370	size_t cbTssRead;
3371	rc = DBGCCmdHlpMemRead(pCmdHlp, pVM, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3372	if (RT_FAILURE(rc))
3373	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3374	if (cbTssRead < cbTssMin)
3375	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3376	cbTssRead, cbTssMin);
3377	if (cbTssRead < cbTss)
3378	memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3379
3380
3381	/*
3382	* Format the TSS.
3383	*/
3384	uint16_t offIoBitmap;
3385	switch (enmTssType)
3386	{
3387	case kTss16:
3388	{
3389	PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3390	if (SelTss != UINT32_MAX)
3391	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3392	else
3393	DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3394	DBGCCmdHlpPrintf(pCmdHlp,
3395	"ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3396	"ip=%04x sp=%04x bp=%04x\n"
3397	"cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3398	"ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3399	"prev=%04x ldtr=%04x\n"
3400	,
3401	pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3402	pTss->ip, pTss->sp, pTss->bp,
3403	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3404	pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3405	pTss->selPrev, pTss->selLdt);
3406	if (pTss->cs != 0)
3407	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3408	offIoBitmap = 0;
3409	break;
3410	}
3411
3412	case kTss32:
3413	{
3414	PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3415	if (SelTss != UINT32_MAX)
3416	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3417	else
3418	DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3419	DBGCCmdHlpPrintf(pCmdHlp,
3420	"eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3421	"eip=%08x esp=%08x ebp=%08x\n"
3422	"cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3423	"ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3424	"prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3425	,
3426	pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3427	pTss->eip, pTss->esp, pTss->ebp,
3428	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3429	pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3430	pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3431	if (pTss->cs != 0)
3432	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3433	offIoBitmap = pTss->offIoBitmap;
3434	break;
3435	}
3436
3437	case kTss64:
3438	{
3439	PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3440	if (SelTss != UINT32_MAX)
3441	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3442	else
3443	DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3444	DBGCCmdHlpPrintf(pCmdHlp,
3445	"rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3446	"ist1=%016RX16 ist2=%016RX16\n"
3447	"ist3=%016RX16 ist4=%016RX16\n"
3448	"ist5=%016RX16 ist6=%016RX16\n"
3449	"ist7=%016RX16 iomap=%04x\n"
3450	,
3451	pTss->rsp0, pTss->rsp1, pTss->rsp2,
3452	pTss->ist1, pTss->ist2,
3453	pTss->ist3, pTss->ist4,
3454	pTss->ist5, pTss->ist6,
3455	pTss->ist7, pTss->offIoBitmap);
3456	offIoBitmap = pTss->offIoBitmap;
3457	break;
3458	}
3459
3460	default:
3461	AssertFailedReturn(VERR_INTERNAL_ERROR);
3462	}
3463
3464	/*
3465	* Dump the interrupt redirection bitmap.
3466	*/
3467	if (enmTssType != kTss16)
3468	{
3469	if ( offIoBitmap > cbTssMin
3470	&& offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3471	{
3472	if (offIoBitmap - cbTssMin >= 32)
3473	{
3474	DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3475	uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3476	uint32_t iStart = 0;
3477	bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3478	for (uint32_t i = 0; i < 256; i++)
3479	{
3480	bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3481	if (fThis != fPrev)
3482	{
3483	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3484	fPrev = fThis;
3485	iStart = i;
3486	}
3487	}
3488	if (iStart != 255)
3489	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3490	}
3491	else
3492	DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3493	offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3494	}
3495	else if (offIoBitmap > 0)
3496	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3497	else
3498	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3499	}
3500
3501	/*
3502	* Dump the I/O bitmap if present.
3503	*/
3504	if (enmTssType != kTss16)
3505	{
3506	if (offIoBitmap < cbTss)
3507	{
3508	uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3509	DBGCVAR VarAddr;
3510	DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3511	DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3512
3513	uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3514	uint32_t iStart = 0;
3515	bool fPrev = ASMBitTest(pbIoBitmap, 0);
3516	uint32_t cLine = 0;
3517	for (uint32_t i = 1; i < cPorts; i++)
3518	{
3519	bool fThis = ASMBitTest(pbIoBitmap, i);
3520	if (fThis != fPrev)
3521	{
3522	cLine++;
3523	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3524	fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3525	fPrev = fThis;
3526	iStart = i;
3527	}
3528	}
3529	if (iStart != _64K-1)
3530	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3531	}
3532	else if (offIoBitmap > 0)
3533	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3534	else
3535	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3536	}
3537
3538	return VINF_SUCCESS;
3539	}
3540
3541
3542	/**
3543	* The 'm' command.
3544	*
3545	* @returns VBox status.
3546	* @param pCmd Pointer to the command descriptor (as registered).
3547	* @param pCmdHlp Pointer to command helper functions.
3548	* @param pVM Pointer to the current VM (if any).
3549	* @param paArgs Pointer to (readonly) array of arguments.
3550	* @param cArgs Number of arguments in the array.
3551	*/
3552	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3553	{
3554	DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3555	if (!pVM)
3556	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
3557	return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
3558	}
3559
3560
3561	/**
3562	* Converts one or more variables into a byte buffer for a
3563	* given unit size.
3564	*
3565	* @returns VBox status codes:
3566	* @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3567	* @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3568	* @retval VINF_SUCCESS on success.
3569	*
3570	* @param pvBuf The buffer to convert into.
3571	* @param pcbBuf The buffer size on input. The size of the result on output.
3572	* @param cbUnit The unit size to apply when converting.
3573	* The high bit is used to indicate unicode string.
3574	* @param paVars The array of variables to convert.
3575	* @param cVars The number of variables.
3576	*/
3577	int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void pvBuf, uint32_t pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3578	{
3579	union
3580	{
3581	uint8_t *pu8;
3582	uint16_t *pu16;
3583	uint32_t *pu32;
3584	uint64_t *pu64;
3585	} u, uEnd;
3586	u.pu8 = (uint8_t *)pvBuf;
3587	uEnd.pu8 = u.pu8 + *pcbBuf;
3588
3589	unsigned i;
3590	for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3591	{
3592	switch (paVars[i].enmType)
3593	{
3594	case DBGCVAR_TYPE_GC_FAR:
3595	case DBGCVAR_TYPE_GC_FLAT:
3596	case DBGCVAR_TYPE_GC_PHYS:
3597	case DBGCVAR_TYPE_HC_FLAT:
3598	case DBGCVAR_TYPE_HC_PHYS:
3599	case DBGCVAR_TYPE_NUMBER:
3600	{
3601	uint64_t u64 = paVars[i].u.u64Number;
3602	switch (cbUnit & 0x1f)
3603	{
3604	case 1:
3605	do
3606	{
3607	*u.pu8++ = u64;
3608	u64 >>= 8;
3609	} while (u64);
3610	break;
3611	case 2:
3612	do
3613	{
3614	*u.pu16++ = u64;
3615	u64 >>= 16;
3616	} while (u64);
3617	break;
3618	case 4:
3619	*u.pu32++ = u64;
3620	u64 >>= 32;
3621	if (u64)
3622	*u.pu32++ = u64;
3623	break;
3624	case 8:
3625	*u.pu64++ = u64;
3626	break;
3627	}
3628	break;
3629	}
3630
3631	case DBGCVAR_TYPE_STRING:
3632	case DBGCVAR_TYPE_SYMBOL:
3633	{
3634	const char *psz = paVars[i].u.pszString;
3635	size_t cbString = strlen(psz);
3636	if (cbUnit & RT_BIT_32(31))
3637	{
3638	/* Explode char to unit. */
3639	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3640	{
3641	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3642	return VERR_TOO_MUCH_DATA;
3643	}
3644	while (*psz)
3645	{
3646	switch (cbUnit & 0x1f)
3647	{
3648	case 1: u.pu8++ = psz; break;
3649	case 2: u.pu16++ = psz; break;
3650	case 4: u.pu32++ = psz; break;
3651	case 8: u.pu64++ = psz; break;
3652	}
3653	psz++;
3654	}
3655	}
3656	else
3657	{
3658	/* Raw copy with zero padding if the size isn't aligned. */
3659	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3660	{
3661	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3662	return VERR_TOO_MUCH_DATA;
3663	}
3664
3665	size_t cbCopy = cbString & ~(cbUnit - 1);
3666	memcpy(u.pu8, psz, cbCopy);
3667	u.pu8 += cbCopy;
3668	psz += cbCopy;
3669
3670	size_t cbReminder = cbString & (cbUnit - 1);
3671	if (cbReminder)
3672	{
3673	memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3674	memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3675	u.pu8 += cbUnit;
3676	}
3677	}
3678	break;
3679	}
3680
3681	default:
3682	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3683	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3684	"i=%d enmType=%d\n", i, paVars[i].enmType);
3685	return VERR_INTERNAL_ERROR;
3686	}
3687	}
3688	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3689	if (i != cVars)
3690	{
3691	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3692	return VERR_TOO_MUCH_DATA;
3693	}
3694	return VINF_SUCCESS;
3695	}
3696
3697
3698	/**
3699	* The 'eb', 'ew', 'ed' and 'eq' commands.
3700	*
3701	* @returns VBox status.
3702	* @param pCmd Pointer to the command descriptor (as registered).
3703	* @param pCmdHlp Pointer to command helper functions.
3704	* @param pVM Pointer to the current VM (if any).
3705	* @param paArgs Pointer to (readonly) array of arguments.
3706	* @param cArgs Number of arguments in the array.
3707	*/
3708	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3709	{
3710	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3711	unsigned iArg;
3712
3713	/*
3714	* Validate input.
3715	*/
3716	if ( cArgs < 2
3717	\|\| !DBGCVAR_ISPOINTER(paArgs[0].enmType))
3718	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet... It might help to use the '%%' operator.\n");
3719	for (iArg = 1; iArg < cArgs; iArg++)
3720	if (paArgs[iArg].enmType != DBGCVAR_TYPE_NUMBER)
3721	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet: Arg #%u is not a number.\n", iArg);
3722	if (!pVM)
3723	return DBGCCmdHlpFail(pCmdHlp, pCmd, "error: No VM.\n");
3724
3725	/*
3726	* Figure out the element size.
3727	*/
3728	unsigned cbElement;
3729	switch (pCmd->pszCmd[1])
3730	{
3731	default:
3732	case 'b': cbElement = 1; break;
3733	case 'w': cbElement = 2; break;
3734	case 'd': cbElement = 4; break;
3735	case 'q': cbElement = 8; break;
3736	}
3737
3738	/*
3739	* Do setting.
3740	*/
3741	DBGCVAR Addr = paArgs[0];
3742	for (iArg = 1;;)
3743	{
3744	size_t cbWritten;
3745	int rc = pCmdHlp->pfnMemWrite(pCmdHlp, pVM, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3746	if (RT_FAILURE(rc))
3747	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3748	if (cbWritten != cbElement)
3749	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3750
3751	/* advance. */
3752	iArg++;
3753	if (iArg >= cArgs)
3754	break;
3755	rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3756	if (RT_FAILURE(rc))
3757	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3758	}
3759
3760	NOREF(pResult);
3761	return VINF_SUCCESS;
3762	}
3763
3764
3765	/**
3766	* Executes the search.
3767	*
3768	* @returns VBox status code.
3769	* @param pCmdHlp The command helpers.
3770	* @param pVM The VM handle.
3771	* @param pAddress The address to start searching from. (undefined on output)
3772	* @param cbRange The address range to search. Must not wrap.
3773	* @param pabBytes The byte pattern to search for.
3774	* @param cbBytes The size of the pattern.
3775	* @param cbUnit The search unit.
3776	* @param cMaxHits The max number of hits.
3777	* @param pResult Where to store the result if it's a function invocation.
3778	*/
3779	static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3780	const uint8_t *pabBytes, uint32_t cbBytes,
3781	uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3782	{
3783	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3784
3785	/*
3786	* Do the search.
3787	*/
3788	uint64_t cHits = 0;
3789	for (;;)
3790	{
3791	/* search */
3792	DBGFADDRESS HitAddress;
3793	int rc = DBGFR3MemScan(pVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3794	if (RT_FAILURE(rc))
3795	{
3796	if (rc != VERR_DBGF_MEM_NOT_FOUND)
3797	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3798
3799	/* update the current address so we can save it (later). */
3800	pAddress->off += cbRange;
3801	pAddress->FlatPtr += cbRange;
3802	cbRange = 0;
3803	break;
3804	}
3805
3806	/* report result */
3807	DBGCVAR VarCur;
3808	rc = DBGCCmdHlpVarFromDbgfAddr(pCmdHlp, &HitAddress, &VarCur);
3809	if (RT_FAILURE(rc))
3810	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGCCmdHlpVarFromDbgfAddr\n");
3811	if (!pResult)
3812	pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3813	else
3814	DBGCVAR_ASSIGN(pResult, &VarCur);
3815
3816	/* advance */
3817	cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3818	*pAddress = HitAddress;
3819	pAddress->FlatPtr += cbBytes;
3820	pAddress->off += cbBytes;
3821	if (cbRange <= cbBytes)
3822	{
3823	cbRange = 0;
3824	break;
3825	}
3826	cbRange -= cbBytes;
3827
3828	if (++cHits >= cMaxHits)
3829	{
3830	/// @todo save the search.
3831	break;
3832	}
3833	}
3834
3835	/*
3836	* Save the search so we can resume it...
3837	*/
3838	if (pDbgc->abSearch != pabBytes)
3839	{
3840	memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3841	pDbgc->cbSearch = cbBytes;
3842	pDbgc->cbSearchUnit = cbUnit;
3843	}
3844	pDbgc->cMaxSearchHits = cMaxHits;
3845	pDbgc->SearchAddr = *pAddress;
3846	pDbgc->cbSearchRange = cbRange;
3847
3848	return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3849	}
3850
3851
3852	/**
3853	* Resumes the previous search.
3854	*
3855	* @returns VBox status code.
3856	* @param pCmdHlp Pointer to the command helper functions.
3857	* @param pVM Pointer to the current VM (if any).
3858	* @param pResult Where to store the result of a function invocation.
3859	*/
3860	static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGCVAR pResult)
3861	{
3862	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3863
3864	/*
3865	* Make sure there is a previous command.
3866	*/
3867	if (!pDbgc->cbSearch)
3868	{
3869	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Error: No previous search\n");
3870	return VERR_DBGC_COMMAND_FAILED;
3871	}
3872
3873	/*
3874	* Make range and address adjustments.
3875	*/
3876	DBGFADDRESS Address = pDbgc->SearchAddr;
3877	if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3878	{
3879	Address.FlatPtr -= Address.off;
3880	Address.off = 0;
3881	}
3882
3883	RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3884	if (!cbRange)
3885	cbRange = ~(RTGCUINTPTR)0;
3886	if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3887	cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3888
3889	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3890	pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3891	}
3892
3893
3894	/**
3895	* Search memory, worker for the 's' and 's?' functions.
3896	*
3897	* @returns VBox status.
3898	* @param pCmdHlp Pointer to the command helper functions.
3899	* @param pVM Pointer to the current VM (if any).
3900	* @param pAddress Where to start searching. If no range, search till end of address space.
3901	* @param cMaxHits The maximum number of hits.
3902	* @param chType The search type.
3903	* @param paPatArgs The pattern variable array.
3904	* @param cPatArgs Number of pattern variables.
3905	* @param pResult Where to store the result of a function invocation.
3906	*/
3907	static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3908	PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3909	{
3910	DBGCVAR_INIT_GC_FLAT(pResult, 0);
3911
3912	/*
3913	* Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3914	*/
3915	uint32_t cbUnit;
3916	switch (chType)
3917	{
3918	case 'a':
3919	case 'b': cbUnit = 1; break;
3920	case 'u': cbUnit = 2 \| RT_BIT_32(31); break;
3921	case 'w': cbUnit = 2; break;
3922	case 'd': cbUnit = 4; break;
3923	case 'q': cbUnit = 8; break;
3924	default:
3925	return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3926	}
3927	uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3928	uint32_t cbBytes = sizeof(abBytes);
3929	int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3930	if (RT_FAILURE(rc))
3931	return VERR_DBGC_COMMAND_FAILED;
3932
3933	/*
3934	* Make DBGF address and fix the range.
3935	*/
3936	DBGFADDRESS Address;
3937	rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3938	if (RT_FAILURE(rc))
3939	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3940
3941	RTGCUINTPTR cbRange;
3942	switch (pAddress->enmRangeType)
3943	{
3944	case DBGCVAR_RANGE_BYTES:
3945	cbRange = pAddress->u64Range;
3946	if (cbRange != pAddress->u64Range)
3947	cbRange = ~(RTGCUINTPTR)0;
3948	break;
3949
3950	case DBGCVAR_RANGE_ELEMENTS:
3951	cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3952	if ( cbRange != pAddress->u64Range * cbUnit
3953	\|\| cbRange < pAddress->u64Range)
3954	cbRange = ~(RTGCUINTPTR)0;
3955	break;
3956
3957	default:
3958	cbRange = ~(RTGCUINTPTR)0;
3959	break;
3960	}
3961	if (Address.FlatPtr + cbRange < Address.FlatPtr)
3962	cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3963
3964	/*
3965	* Ok, do it.
3966	*/
3967	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3968	}
3969
3970
3971	/**
3972	* The 's' command.
3973	*
3974	* @returns VBox status.
3975	* @param pCmd Pointer to the command descriptor (as registered).
3976	* @param pCmdHlp Pointer to command helper functions.
3977	* @param pVM Pointer to the current VM (if any).
3978	* @param paArgs Pointer to (readonly) array of arguments.
3979	* @param cArgs Number of arguments in the array.
3980	*/
3981	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3982	{
3983	/* check that the parser did what it's supposed to do. */
3984	//if ( cArgs <= 2
3985	// && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3986	// return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
3987
3988	/*
3989	* Repeat previous search?
3990	*/
3991	if (cArgs == 0)
3992	return dbgcCmdWorkerSearchMemResume(pCmdHlp, pVM, pResult);
3993
3994	/*
3995	* Parse arguments.
3996	*/
3997
3998	return -1;
3999	}
4000
4001
4002	/**
4003	* The 's?' command.
4004	*
4005	* @returns VBox status.
4006	* @param pCmd Pointer to the command descriptor (as registered).
4007	* @param pCmdHlp Pointer to command helper functions.
4008	* @param pVM Pointer to the current VM (if any).
4009	* @param paArgs Pointer to (readonly) array of arguments.
4010	* @param cArgs Number of arguments in the array.
4011	*/
4012	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4013	{
4014	/* check that the parser did what it's supposed to do. */
4015	if ( cArgs < 2
4016	\|\| !DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
4017	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
4018	return dbgcCmdWorkerSearchMem(pCmdHlp, pVM, &paArgs[0], pResult ? 1 : 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, pResult);
4019	}
4020
4021
4022	/**
4023	* List near symbol.
4024	*
4025	* @returns VBox status code.
4026	* @param pCmdHlp Pointer to command helper functions.
4027	* @param pVM Pointer to the current VM (if any).
4028	* @param pArg Pointer to the address or symbol to lookup.
4029	*/
4030	static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pArg, PDBGCVAR pResult)
4031	{
4032	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4033	DBGCVAR_INIT_GC_FLAT(pResult, 0);
4034
4035	RTDBGSYMBOL Symbol;
4036	int rc;
4037	if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
4038	{
4039	/*
4040	* Lookup the symbol address.
4041	*/
4042	rc = DBGFR3AsSymbolByName(pVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
4043	if (RT_FAILURE(rc))
4044	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
4045
4046	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%Rptr %s\n", Symbol.Value, Symbol.szName);
4047	DBGCVAR_INIT_GC_FLAT_BYTE_RANGE(pResult, Symbol.Value, Symbol.cb);
4048	}
4049	else
4050	{
4051	/*
4052	* Convert it to a flat GC address and lookup that address.
4053	*/
4054	DBGCVAR AddrVar;
4055	rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
4056	if (RT_FAILURE(rc))
4057	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
4058
4059	DBGCVAR_ASSIGN(pResult, &AddrVar);
4060
4061	RTINTPTR offDisp;
4062	DBGFADDRESS Addr;
4063	rc = DBGFR3AsSymbolByAddr(pVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pVM, &Addr, AddrVar.u.GCFlat), &offDisp, &Symbol, NULL);
4064	if (RT_FAILURE(rc))
4065	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
4066
4067	if (!offDisp)
4068	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s", &AddrVar, Symbol.szName);
4069	else if (offDisp > 0)
4070	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
4071	else
4072	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
4073	if ((RTGCINTPTR)Symbol.cb > -offDisp)
4074	{
4075	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " LB %RGv\n", Symbol.cb + offDisp);
4076	DBGCVAR_SET_BYTE_RANGE(pResult, Symbol.cb + offDisp);
4077	}
4078	else
4079	{
4080	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
4081	DBGCVAR_ZAP_RANGE(pResult);
4082	}
4083	}
4084
4085	return rc;
4086	}
4087
4088
4089	/**
4090	* The 'ln' (listnear) command.
4091	*
4092	* @returns VBox status.
4093	* @param pCmd Pointer to the command descriptor (as registered).
4094	* @param pCmdHlp Pointer to command helper functions.
4095	* @param pVM Pointer to the current VM (if any).
4096	* @param paArgs Pointer to (readonly) array of arguments.
4097	* @param cArgs Number of arguments in the array.
4098	*/
4099	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4100	{
4101	DBGCVAR_INIT_GC_FLAT(pResult, 0);
4102	if (!cArgs)
4103	{
4104	/*
4105	* Current cs:eip symbol.
4106	*/
4107	DBGCVAR AddrVar;
4108	int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(cs:eip)");
4109	if (RT_FAILURE(rc))
4110	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(cs:eip)\n");
4111	return dbgcDoListNear(pCmdHlp, pVM, &AddrVar, pResult);
4112	}
4113
4114	/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
4115	/*
4116	* Iterate arguments.
4117	*/
4118	for (unsigned iArg = 0; iArg < cArgs; iArg++)
4119	{
4120	int rc = dbgcDoListNear(pCmdHlp, pVM, &paArgs[iArg], pResult);
4121	if (RT_FAILURE(rc))
4122	return rc;
4123	}
4124
4125	NOREF(pCmd); NOREF(pResult);
4126	return VINF_SUCCESS;
4127	}
4128
4129
4130	/**
4131	* Matches the module patters against a module name.
4132	*
4133	* @returns true if matching, otherwise false.
4134	* @param pszName The module name.
4135	* @param paArgs The module pattern argument list.
4136	* @param cArgs Number of arguments.
4137	*/
4138	static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
4139	{
4140	for (uint32_t i = 0; i < cArgs; i++)
4141	if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
4142	return true;
4143	return false;
4144	}
4145
4146
4147	/**
4148	* The 'ln' (listnear) command.
4149	*
4150	* @returns VBox status.
4151	* @param pCmd Pointer to the command descriptor (as registered).
4152	* @param pCmdHlp Pointer to command helper functions.
4153	* @param pVM Pointer to the current VM (if any).
4154	* @param paArgs Pointer to (readonly) array of arguments.
4155	* @param cArgs Number of arguments in the array.
4156	*/
4157	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4158	{
4159	bool const fMappings = pCmd->pszCmd[2] == 'o';
4160	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4161
4162	/*
4163	* Iterate the modules in the current address space and print info about
4164	* those matching the input.
4165	*/
4166	RTDBGAS hAs = DBGFR3AsResolveAndRetain(pVM, pDbgc->hDbgAs);
4167	uint32_t cMods = RTDbgAsModuleCount(hAs);
4168	for (uint32_t iMod = 0; iMod < cMods; iMod++)
4169	{
4170	RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
4171	if (hMod != NIL_RTDBGMOD)
4172	{
4173	uint32_t const cSegs = RTDbgModSegmentCount(hMod);
4174	const char * const pszName = RTDbgModName(hMod);
4175	if ( cArgs == 0
4176	\|\| dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
4177	{
4178	/*
4179	* Find the mapping with the lower address, preferring a full
4180	* image mapping, for the main line.
4181	*/
4182	RTDBGASMAPINFO aMappings[128];
4183	uint32_t cMappings = RT_ELEMENTS(aMappings);
4184	int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /fFlags/);
4185	if (RT_SUCCESS(rc))
4186	{
4187	bool fFull = false;
4188	RTUINTPTR uMin = RTUINTPTR_MAX;
4189	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4190	if ( aMappings[iMap].Address < uMin
4191	&& ( !fFull
4192	\|\| aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4193	uMin = aMappings[iMap].Address;
4194	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s\n", (RTGCUINTPTR)uMin, cSegs, pszName);
4195
4196	if (fMappings)
4197	{
4198	/* sort by address first - not very efficient. */
4199	for (uint32_t i = 0; i + 1 < cMappings; i++)
4200	for (uint32_t j = i + 1; j < cMappings; j++)
4201	if (aMappings[j].Address < aMappings[i].Address)
4202	{
4203	RTDBGASMAPINFO Tmp = aMappings[j];
4204	aMappings[j] = aMappings[i];
4205	aMappings[i] = Tmp;
4206	}
4207
4208	/* print */
4209	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4210	if (aMappings[iMap].iSeg != NIL_RTDBGSEGIDX)
4211	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4212	(RTGCUINTPTR)aMappings[iMap].Address,
4213	(RTGCUINTPTR)RTDbgModSegmentSize(hMod, aMappings[iMap].iSeg),
4214	aMappings[iMap].iSeg,
4215	/** @todo RTDbgModSegmentName(hMod, aMappings[iMap].iSeg)*/ "noname");
4216	else
4217	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4218	(RTGCUINTPTR)aMappings[iMap].Address,
4219	(RTGCUINTPTR)RTDbgModImageSize(hMod));
4220	}
4221	}
4222	else
4223	DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4224	sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4225	/** @todo missing address space API for enumerating the mappings. */
4226	}
4227	RTDbgModRelease(hMod);
4228	}
4229	}
4230	RTDbgAsRelease(hAs);
4231
4232	NOREF(pCmd); NOREF(pResult);
4233	return VINF_SUCCESS;
4234	}

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source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 35694

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