DBGCEmulateCodeView.cpp@ 35625

Last change on this file since 35625 was 35625, checked in by vboxsync, 14 years ago
DBGF,CPUM,DBGC: Use DBGFReg in the debugger, stop accessing CPUMCTX structures directly when messing with registers.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 184.1 KB

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1	/* $Id: DBGCEmulateCodeView.cpp 35625 2011-01-19 11:17:34Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, CodeView / WinDbg Emulation.
4	*/
5
6	/*
7	* Copyright (C) 2006-2010 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	/*******************************************************************************
19	* 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/selm.h>
26	#include <VBox/vmm/cpum.h>
27	#include <VBox/dis.h>
28	#include <VBox/param.h>
29	#include <VBox/err.h>
30	#include <VBox/log.h>
31
32	#include <iprt/asm.h>
33	#include <iprt/alloca.h>
34	#include <iprt/mem.h>
35	#include <iprt/string.h>
36	#include <iprt/assert.h>
37	#include <iprt/ctype.h>
38
39	#include <stdlib.h>
40	#include <stdio.h>
41
42	#include "DBGCInternal.h"
43
44
45	/*******************************************************************************
46	* Internal Functions *
47	*******************************************************************************/
48	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
49	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
50	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
51	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
52	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
53	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
54	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
55	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
56	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
57	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
58	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
59	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
60	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
61	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
62	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
63	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
64	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
65	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
66	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
67	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
68	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
69	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
70	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
71	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
72	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
73	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
74	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
75	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
76	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
77	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
78	static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
79
80
81	/*******************************************************************************
82	* Global Variables *
83	*******************************************************************************/
84	/** 'ba' arguments. */
85	static const DBGCVARDESC g_aArgBrkAcc[] =
86	{
87	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
88	{ 1, 1, DBGCVAR_CAT_STRING, 0, "access", "The access type: x=execute, rw=read/write (alias r), w=write, i=not implemented." },
89	{ 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." },
90	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
91	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
92	{ 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)" },
93	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
94	};
95
96
97	/** 'bc', 'bd', 'be' arguments. */
98	static const DBGCVARDESC g_aArgBrks[] =
99	{
100	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
101	{ 0, ~0, DBGCVAR_CAT_NUMBER, 0, "#bp", "Breakpoint number." },
102	{ 0, 1, DBGCVAR_CAT_STRING, 0, "all", "All breakpoints." },
103	};
104
105
106	/** 'bp' arguments. */
107	static const DBGCVARDESC g_aArgBrkSet[] =
108	{
109	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
110	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
111	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
112	{ 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)" },
113	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
114	};
115
116
117	/** 'br' arguments. */
118	static const DBGCVARDESC g_aArgBrkREM[] =
119	{
120	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
121	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
122	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
123	{ 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)" },
124	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
125	};
126
127
128	/** 'd?' arguments. */
129	static const DBGCVARDESC g_aArgDumpMem[] =
130	{
131	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
132	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start dumping memory." },
133	};
134
135
136	/** 'dg', 'dga', 'dl', 'dla' arguments. */
137	static const DBGCVARDESC g_aArgDumpDT[] =
138	{
139	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
140	{ 0, ~0, DBGCVAR_CAT_NUMBER, 0, "sel", "Selector or selector range." },
141	{ 0, ~0, DBGCVAR_CAT_POINTER, 0, "address", "Far address which selector should be dumped." },
142	};
143
144
145	/** 'di', 'dia' arguments. */
146	static const DBGCVARDESC g_aArgDumpIDT[] =
147	{
148	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
149	{ 0, ~0, DBGCVAR_CAT_NUMBER, 0, "int", "The interrupt vector or interrupt vector range." },
150	};
151
152
153	/** 'dpd' arguments. /
154	static const DBGCVARDESC g_aArgDumpPD[] =
155	{
156	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
157	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "index", "Index into the page directory." },
158	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from. Range is applied to the page directory." },
159	};
160
161
162	/** 'dpda' arguments. */
163	static const DBGCVARDESC g_aArgDumpPDAddr[] =
164	{
165	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
166	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page directory entry to start dumping from." },
167	};
168
169
170	/** 'dph' arguments. /
171	static const DBGCVARDESC g_aArgDumpPH[] =
172	{
173	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
174	{ 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." },
175	{ 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." },
176	{ 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." },
177	};
178
179
180	/** 'dpt?' arguments. */
181	static const DBGCVARDESC g_aArgDumpPT[] =
182	{
183	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
184	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from." },
185	};
186
187
188	/** 'dpta' arguments. */
189	static const DBGCVARDESC g_aArgDumpPTAddr[] =
190	{
191	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
192	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page table entry to start dumping from." },
193	};
194
195
196	/** 'dt' arguments. */
197	static const DBGCVARDESC g_aArgDumpTSS[] =
198	{
199	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
200	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "tss", "TSS selector number." },
201	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "tss:ign\|addr", "TSS address. If the selector is a TSS selector, the offset will be ignored." }
202	};
203
204
205	/** 'e?' arguments. */
206	static const DBGCVARDESC g_aArgEditMem[] =
207	{
208	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
209	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to write." },
210	{ 1, ~0, DBGCVAR_CAT_NUMBER, 0, "value", "Value to write." },
211	};
212
213
214	/** 'lm' arguments. */
215	static const DBGCVARDESC g_aArgListMods[] =
216	{
217	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
218	{ 0, ~0, DBGCVAR_CAT_STRING, 0, "module", "Module name." },
219	};
220
221
222	/** 'ln' arguments. */
223	static const DBGCVARDESC g_aArgListNear[] =
224	{
225	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
226	{ 0, ~0, DBGCVAR_CAT_POINTER, 0, "address", "Address of the symbol to look up." },
227	{ 0, ~0, DBGCVAR_CAT_SYMBOL, 0, "symbol", "Symbol to lookup." },
228	};
229
230	/** 'ln' return. */
231	static const DBGCVARDESC g_RetListNear =
232	{
233	1, 1, DBGCVAR_CAT_POINTER, 0, "address", "The last resolved symbol/address with adjusted range."
234	};
235
236
237	/** 'ls' arguments. */
238	static const DBGCVARDESC g_aArgListSource[] =
239	{
240	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
241	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start looking for source lines." },
242	};
243
244
245	/** 'm' argument. */
246	static const DBGCVARDESC g_aArgMemoryInfo[] =
247	{
248	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
249	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Pointer to obtain info about." },
250	};
251
252
253	/** 'r' arguments. */
254	static const DBGCVARDESC g_aArgReg[] =
255	{
256	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
257	{ 0, 1, DBGCVAR_CAT_SYMBOL, 0, "register", "Register to show or set." },
258	{ 0, 1, DBGCVAR_CAT_NUMBER_NO_RANGE, DBGCVD_FLAGS_DEP_PREV, "value", "New register value." },
259	};
260
261
262	/** 's' arguments. */
263	static const DBGCVARDESC g_aArgSearchMem[] =
264	{
265	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
266	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-b", "Byte string." },
267	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-w", "Word string." },
268	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-d", "DWord string." },
269	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-q", "QWord string." },
270	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-a", "ASCII string." },
271	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-u", "Unicode string." },
272	{ 0, 1, DBGCVAR_CAT_OPTION_NUMBER, 0, "-n <Hits>", "Maximum number of hits." },
273	{ 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
274	{ 0, ~0, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
275	};
276
277
278	/** 's?' arguments. */
279	static const DBGCVARDESC g_aArgSearchMemType[] =
280	{
281	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
282	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
283	{ 1, ~0, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
284	};
285
286
287	/** 'u' arguments. */
288	static const DBGCVARDESC g_aArgUnassemble[] =
289	{
290	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
291	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start disassembling." },
292	};
293
294
295	/** Command descriptors for the CodeView / WinDbg emulation.
296	* The emulation isn't attempting to be identical, only somewhat similar.
297	*/
298	const DBGCCMD g_aCmdsCodeView[] =
299	{
300	/* pszCmd, cArgsMin, cArgsMax, paArgDescs, cArgDescs, pResultDesc, fFlags, pfnHandler pszSyntax, ....pszDescription */
301	{ "ba", 3, 6, &g_aArgBrkAcc[0], RT_ELEMENTS(g_aArgBrkAcc), NULL, 0, dbgcCmdBrkAccess, "<access> <size> <address> [passes [max passes]] [cmds]",
302	"Sets a data access breakpoint." },
303	{ "bc", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkClear, "all \| <bp#> [bp# []]", "Enabled a set of breakpoints." },
304	{ "bd", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkDisable, "all \| <bp#> [bp# []]", "Disables a set of breakpoints." },
305	{ "be", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkEnable, "all \| <bp#> [bp# []]", "Enabled a set of breakpoints." },
306	{ "bl", 0, 0, NULL, 0, NULL, 0, dbgcCmdBrkList, "", "Lists all the breakpoints." },
307	{ "bp", 1, 4, &g_aArgBrkSet[0], RT_ELEMENTS(g_aArgBrkSet), NULL, 0, dbgcCmdBrkSet, "<address> [passes [max passes]] [cmds]",
308	"Sets a breakpoint (int 3)." },
309	{ "br", 1, 4, &g_aArgBrkREM[0], RT_ELEMENTS(g_aArgBrkREM), NULL, 0, dbgcCmdBrkREM, "<address> [passes [max passes]] [cmds]",
310	"Sets a recompiler specific breakpoint." },
311	{ "d", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory using last element size." },
312	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
313	{ "db", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in bytes." },
314	{ "dd", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in double words." },
315	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
316	{ "dg", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT)." },
317	{ "dga", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT) including not-present entries." },
318	{ "di", 0, ~0, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), NULL, 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT)." },
319	{ "dia", 0, ~0, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), NULL, 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT) including not-present entries." },
320	{ "dl", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT)." },
321	{ "dla", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT) including not-present entries." },
322	{ "dpd", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the default context." },
323	{ "dpda", 0, 1, &g_aArgDumpPDAddr[0],RT_ELEMENTS(g_aArgDumpPDAddr),NULL, 0, dbgcCmdDumpPageDir, "[addr]", "Dumps specified page directory." },
324	{ "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. " },
325	{ "dpdg", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the guest." },
326	{ "dpdh", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the hypervisor. " },
327	{ "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." },
328	{ "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." },
329	{ "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." },
330	{ "dpt", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the default context." },
331	{ "dpta", 1, 1, &g_aArgDumpPTAddr[0],RT_ELEMENTS(g_aArgDumpPTAddr), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps specified page table." },
332	{ "dptb", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTableBoth,"<addr>", "Dumps page table entries of the guest and the hypervisor." },
333	{ "dptg", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the guest." },
334	{ "dpth", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the hypervisor." },
335	{ "dq", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in quad words." },
336	{ "dt", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), NULL, 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the task state segment (TSS)." },
337	{ "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)." },
338	{ "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)." },
339	{ "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)." },
340	{ "dw", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in words." },
341	/** @todo add 'e', 'ea str', 'eza str', 'eu str' and 'ezu str'. See also
342	* dbgcCmdSearchMem and its dbgcVarsToBytes usage. */
343	{ "eb", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 1-byte value to memory." },
344	{ "ew", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 2-byte value to memory." },
345	{ "ed", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 4-byte value to memory." },
346	{ "eq", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 8-byte value to memory." },
347	{ "g", 0, 0, NULL, 0, NULL, 0, dbgcCmdGo, "", "Continue execution." },
348	{ "k", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack." },
349	{ "kg", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack - guest." },
350	{ "kh", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack - hypervisor." },
351	{ "lm", 0, ~0, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), NULL, 0, dbgcCmdListModules, "[module [..]]", "List modules." },
352	{ "lmo", 0, ~0, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), NULL, 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments." },
353	{ "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." },
354	{ "ls", 0, 1, &g_aArgListSource[0],RT_ELEMENTS(g_aArgListSource),NULL, 0, dbgcCmdListSource, "[addr]", "Source." },
355	{ "m", 1, 1, &g_aArgMemoryInfo[0],RT_ELEMENTS(g_aArgMemoryInfo),NULL, 0, dbgcCmdMemoryInfo, "<addr>", "Display information about that piece of memory." },
356	{ "r", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdReg, "[reg [newval]]", "Show or set register(s) - active reg set." },
357	{ "rg", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdRegGuest, "[reg [newval]]", "Show or set register(s) - guest reg set." },
358	{ "rg32", 0, 0, NULL, 0, NULL, 0, dbgcCmdRegGuest, "", "Show 32-bit guest registers." },
359	{ "rg64", 0, 0, NULL, 0, NULL, 0, dbgcCmdRegGuest, "", "Show 64-bit guest registers." },
360	{ "rh", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdRegHyper, "[reg [newval]]", "Show or set register(s) - hypervisor reg set." },
361	{ "rt", 0, 0, NULL, 0, NULL, 0, dbgcCmdRegTerse, "", "Toggles terse / verbose register info." },
362	{ "s", 0, ~0, &g_aArgSearchMem[0], RT_ELEMENTS(g_aArgSearchMem), NULL, 0, dbgcCmdSearchMem, "[options] <range> <pattern>", "Continue last search." },
363	{ "sa", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an ascii string." },
364	{ "sb", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more bytes." },
365	{ "sd", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more double words." },
366	{ "sq", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more quad words." },
367	{ "su", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an unicode string." },
368	{ "sw", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more words." },
369	{ "t", 0, 0, NULL, 0, NULL, 0, dbgcCmdTrace, "", "Instruction trace (step into)." },
370	{ "u", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble." },
371	{ "u64", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 64-bit code." },
372	{ "u32", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 32-bit code." },
373	{ "u16", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code." },
374	{ "uv86", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code with v8086/real mode addressing." },
375	};
376
377	/** The number of commands in the CodeView/WinDbg emulation. */
378	const unsigned g_cCmdsCodeView = RT_ELEMENTS(g_aCmdsCodeView);
379
380
381
382	/**
383	* The 'go' command.
384	*
385	* @returns VBox status.
386	* @param pCmd Pointer to the command descriptor (as registered).
387	* @param pCmdHlp Pointer to command helper functions.
388	* @param pVM Pointer to the current VM (if any).
389	* @param paArgs Pointer to (readonly) array of arguments.
390	* @param cArgs Number of arguments in the array.
391	*/
392	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
393	{
394	/*
395	* Check if the VM is halted or not before trying to resume it.
396	*/
397	if (!DBGFR3IsHalted(pVM))
398	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "warning: The VM is already running...\n");
399	else
400	{
401	int rc = DBGFR3Resume(pVM);
402	if (RT_FAILURE(rc))
403	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Executing DBGFR3Resume().");
404	}
405
406	NOREF(pCmd);
407	NOREF(paArgs);
408	NOREF(cArgs);
409	NOREF(pResult);
410	return 0;
411	}
412
413
414	/**
415	* The 'ba' command.
416	*
417	* @returns VBox status.
418	* @param pCmd Pointer to the command descriptor (as registered).
419	* @param pCmdHlp Pointer to command helper functions.
420	* @param pVM Pointer to the current VM (if any).
421	* @param paArgs Pointer to (readonly) array of arguments.
422	* @param cArgs Number of arguments in the array.
423	*/
424	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
425	{
426	/*
427	* Interpret access type.
428	*/
429	if ( !strchr("xrwi", paArgs[0].u.pszString[0])
430	\|\| paArgs[0].u.pszString[1])
431	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid access type '%s' for '%s'. Valid types are 'e', 'r', 'w' and 'i'.\n",
432	paArgs[0].u.pszString, pCmd->pszCmd);
433	uint8_t fType = 0;
434	switch (paArgs[0].u.pszString[0])
435	{
436	case 'x': fType = X86_DR7_RW_EO; break;
437	case 'r': fType = X86_DR7_RW_RW; break;
438	case 'w': fType = X86_DR7_RW_WO; break;
439	case 'i': fType = X86_DR7_RW_IO; break;
440	}
441
442	/*
443	* Validate size.
444	*/
445	if (fType == X86_DR7_RW_EO && paArgs[1].u.u64Number != 1)
446	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid access size %RX64 for '%s'. 'x' access type requires size 1!\n",
447	paArgs[1].u.u64Number, pCmd->pszCmd);
448	switch (paArgs[1].u.u64Number)
449	{
450	case 1:
451	case 2:
452	case 4:
453	break;
454	/case 8: - later/
455	default:
456	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid access size %RX64 for '%s'. 1, 2 or 4!\n",
457	paArgs[1].u.u64Number, pCmd->pszCmd);
458	}
459	uint8_t cb = (uint8_t)paArgs[1].u.u64Number;
460
461	/*
462	* Convert the pointer to a DBGF address.
463	*/
464	DBGFADDRESS Address;
465	int rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, &paArgs[2], &Address);
466	if (RT_FAILURE(rc))
467	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Couldn't convert '%DV' to a DBGF address, rc=%Rrc.\n", &paArgs[2], rc);
468
469	/*
470	* Pick out the optional arguments.
471	*/
472	uint64_t iHitTrigger = 0;
473	uint64_t iHitDisable = ~0;
474	const char *pszCmds = NULL;
475	unsigned iArg = 3;
476	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
477	{
478	iHitTrigger = paArgs[iArg].u.u64Number;
479	iArg++;
480	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
481	{
482	iHitDisable = paArgs[iArg].u.u64Number;
483	iArg++;
484	}
485	}
486	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
487	{
488	pszCmds = paArgs[iArg].u.pszString;
489	iArg++;
490	}
491
492	/*
493	* Try set the breakpoint.
494	*/
495	RTUINT iBp;
496	rc = DBGFR3BpSetReg(pVM, &Address, iHitTrigger, iHitDisable, fType, cb, &iBp);
497	if (RT_SUCCESS(rc))
498	{
499	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
500	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
501	if (RT_SUCCESS(rc))
502	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Set access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
503	if (rc == VERR_DBGC_BP_EXISTS)
504	{
505	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
506	if (RT_SUCCESS(rc))
507	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Updated access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
508	}
509	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
510	AssertRC(rc2);
511	}
512	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Failed to set access breakpoint at %RGv, rc=%Rrc.\n", Address.FlatPtr, rc);
513	}
514
515
516	/**
517	* The 'bc' command.
518	*
519	* @returns VBox status.
520	* @param pCmd Pointer to the command descriptor (as registered).
521	* @param pCmdHlp Pointer to command helper functions.
522	* @param pVM Pointer to the current VM (if any).
523	* @param paArgs Pointer to (readonly) array of arguments.
524	* @param cArgs Number of arguments in the array.
525	*/
526	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
527	{
528	/*
529	* Enumerate the arguments.
530	*/
531	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
532	int rc = VINF_SUCCESS;
533	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
534	{
535	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
536	{
537	/* one */
538	RTUINT iBp = (RTUINT)paArgs[iArg].u.u64Number;
539	if (iBp != paArgs[iArg].u.u64Number)
540	{
541	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Breakpoint id %RX64 is too large!\n", paArgs[iArg].u.u64Number);
542	break;
543	}
544	int rc2 = DBGFR3BpClear(pVM, iBp);
545	if (RT_FAILURE(rc2))
546	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc2, "DBGFR3BpClear failed for breakpoint %u!\n", iBp);
547	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
548	dbgcBpDelete(pDbgc, iBp);
549	}
550	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
551	{
552	/* all */
553	PDBGCBP pBp = pDbgc->pFirstBp;
554	while (pBp)
555	{
556	RTUINT iBp = pBp->iBp;
557	pBp = pBp->pNext;
558
559	int rc2 = DBGFR3BpClear(pVM, iBp);
560	if (RT_FAILURE(rc2))
561	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc2, "DBGFR3BpClear failed for breakpoint %u!\n", iBp);
562	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
563	dbgcBpDelete(pDbgc, iBp);
564	}
565	}
566	else
567	{
568	/* invalid parameter */
569	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid argument '%s' to '%s'!\n", paArgs[iArg].u.pszString, pCmd->pszCmd);
570	break;
571	}
572	}
573	return rc;
574	}
575
576
577	/**
578	* The 'bd' command.
579	*
580	* @returns VBox status.
581	* @param pCmd Pointer to the command descriptor (as registered).
582	* @param pCmdHlp Pointer to command helper functions.
583	* @param pVM Pointer to the current VM (if any).
584	* @param paArgs Pointer to (readonly) array of arguments.
585	* @param cArgs Number of arguments in the array.
586	*/
587	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
588	{
589	/*
590	* Enumerate the arguments.
591	*/
592	int rc = VINF_SUCCESS;
593	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
594	{
595	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
596	{
597	/* one */
598	RTUINT iBp = (RTUINT)paArgs[iArg].u.u64Number;
599	if (iBp != paArgs[iArg].u.u64Number)
600	{
601	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Breakpoint id %RX64 is too large!\n", paArgs[iArg].u.u64Number);
602	break;
603	}
604	rc = DBGFR3BpDisable(pVM, iBp);
605	if (RT_FAILURE(rc))
606	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpDisable failed for breakpoint %u!\n", iBp);
607	}
608	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
609	{
610	/* all */
611	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
612	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
613	{
614	rc = DBGFR3BpDisable(pVM, pBp->iBp);
615	if (RT_FAILURE(rc))
616	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpDisable failed for breakpoint %u!\n", pBp->iBp);
617	}
618	}
619	else
620	{
621	/* invalid parameter */
622	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid argument '%s' to '%s'!\n", paArgs[iArg].u.pszString, pCmd->pszCmd);
623	break;
624	}
625	}
626	return rc;
627	}
628
629
630	/**
631	* The 'be' command.
632	*
633	* @returns VBox status.
634	* @param pCmd Pointer to the command descriptor (as registered).
635	* @param pCmdHlp Pointer to command helper functions.
636	* @param pVM Pointer to the current VM (if any).
637	* @param paArgs Pointer to (readonly) array of arguments.
638	* @param cArgs Number of arguments in the array.
639	*/
640	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
641	{
642	/*
643	* Enumerate the arguments.
644	*/
645	int rc = VINF_SUCCESS;
646	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
647	{
648	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
649	{
650	/* one */
651	RTUINT iBp = (RTUINT)paArgs[iArg].u.u64Number;
652	if (iBp != paArgs[iArg].u.u64Number)
653	{
654	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Breakpoint id %RX64 is too large!\n", paArgs[iArg].u.u64Number);
655	break;
656	}
657	rc = DBGFR3BpEnable(pVM, iBp);
658	if (RT_FAILURE(rc))
659	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpEnable failed for breakpoint %u!\n", iBp);
660	}
661	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
662	{
663	/* all */
664	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
665	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
666	{
667	rc = DBGFR3BpEnable(pVM, pBp->iBp);
668	if (RT_FAILURE(rc))
669	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpEnable failed for breakpoint %u!\n", pBp->iBp);
670	}
671	}
672	else
673	{
674	/* invalid parameter */
675	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid argument '%s' to '%s'!\n", paArgs[iArg].u.pszString, pCmd->pszCmd);
676	break;
677	}
678	}
679	return rc;
680	}
681
682
683	/**
684	* Breakpoint enumeration callback function.
685	*
686	* @returns VBox status code. Any failure will stop the enumeration.
687	* @param pVM The VM handle.
688	* @param pvUser The user argument.
689	* @param pBp Pointer to the breakpoint information. (readonly)
690	*/
691	static DECLCALLBACK(int) dbgcEnumBreakpointsCallback(PVM pVM, void *pvUser, PCDBGFBP pBp)
692	{
693	PDBGC pDbgc = (PDBGC)pvUser;
694	PDBGCBP pDbgcBp = dbgcBpGet(pDbgc, pBp->iBp);
695
696	/*
697	* BP type and size.
698	*/
699	char chType;
700	char cb = 1;
701	switch (pBp->enmType)
702	{
703	case DBGFBPTYPE_INT3:
704	chType = 'p';
705	break;
706	case DBGFBPTYPE_REG:
707	switch (pBp->u.Reg.fType)
708	{
709	case X86_DR7_RW_EO: chType = 'x'; break;
710	case X86_DR7_RW_WO: chType = 'w'; break;
711	case X86_DR7_RW_IO: chType = 'i'; break;
712	case X86_DR7_RW_RW: chType = 'r'; break;
713	default: chType = '?'; break;
714
715	}
716	cb = pBp->u.Reg.cb;
717	break;
718	case DBGFBPTYPE_REM:
719	chType = 'r';
720	break;
721	default:
722	chType = '?';
723	break;
724	}
725
726	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%2u %c %d %c %RGv %04RX64 (%04RX64 to ",
727	pBp->iBp, pBp->fEnabled ? 'e' : 'd', cb, chType,
728	pBp->GCPtr, pBp->cHits, pBp->iHitTrigger);
729	if (pBp->iHitDisable == ~(uint64_t)0)
730	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "~0) ");
731	else
732	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%04RX64)");
733
734	/*
735	* Try resolve the address.
736	*/
737	RTDBGSYMBOL Sym;
738	RTINTPTR off;
739	DBGFADDRESS Addr;
740	int rc = DBGFR3AsSymbolByAddr(pVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pVM, &Addr, pBp->GCPtr), &off, &Sym, NULL);
741	if (RT_SUCCESS(rc))
742	{
743	if (!off)
744	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%s", Sym.szName);
745	else if (off > 0)
746	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%s+%RGv", Sym.szName, off);
747	else
748	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%s+%RGv", Sym.szName, -off);
749	}
750
751	/*
752	* The commands.
753	*/
754	if (pDbgcBp)
755	{
756	if (pDbgcBp->cchCmd)
757	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\n cmds: '%s'\n",
758	pDbgcBp->szCmd);
759	else
760	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\n");
761	}
762	else
763	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, " [unknown bp]\n");
764
765	return VINF_SUCCESS;
766	}
767
768
769	/**
770	* The 'bl' command.
771	*
772	* @returns VBox status.
773	* @param pCmd Pointer to the command descriptor (as registered).
774	* @param pCmdHlp Pointer to command helper functions.
775	* @param pVM Pointer to the current VM (if any).
776	* @param paArgs Pointer to (readonly) array of arguments.
777	* @param cArgs Number of arguments in the array.
778	*/
779	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD /pCmd/, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR /paArgs/, unsigned /cArgs/, PDBGCVAR /pResult/)
780	{
781	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
782
783	/*
784	* Enumerate the breakpoints.
785	*/
786	int rc = DBGFR3BpEnum(pVM, dbgcEnumBreakpointsCallback, pDbgc);
787	if (RT_FAILURE(rc))
788	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpEnum failed.\n");
789	return rc;
790	}
791
792
793	/**
794	* The 'bp' command.
795	*
796	* @returns VBox status.
797	* @param pCmd Pointer to the command descriptor (as registered).
798	* @param pCmdHlp Pointer to command helper functions.
799	* @param pVM Pointer to the current VM (if any).
800	* @param paArgs Pointer to (readonly) array of arguments.
801	* @param cArgs Number of arguments in the array.
802	*/
803	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD /pCmd/, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
804	{
805	/*
806	* Convert the pointer to a DBGF address.
807	*/
808	DBGFADDRESS Address;
809	int rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
810	if (RT_FAILURE(rc))
811	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Couldn't convert '%DV' to a DBGF address, rc=%Rrc.\n", &paArgs[0], rc);
812
813	/*
814	* Pick out the optional arguments.
815	*/
816	uint64_t iHitTrigger = 0;
817	uint64_t iHitDisable = ~0;
818	const char *pszCmds = NULL;
819	unsigned iArg = 1;
820	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
821	{
822	iHitTrigger = paArgs[iArg].u.u64Number;
823	iArg++;
824	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
825	{
826	iHitDisable = paArgs[iArg].u.u64Number;
827	iArg++;
828	}
829	}
830	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
831	{
832	pszCmds = paArgs[iArg].u.pszString;
833	iArg++;
834	}
835
836	/*
837	* Try set the breakpoint.
838	*/
839	RTUINT iBp;
840	rc = DBGFR3BpSet(pVM, &Address, iHitTrigger, iHitDisable, &iBp);
841	if (RT_SUCCESS(rc))
842	{
843	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
844	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
845	if (RT_SUCCESS(rc))
846	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Set breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
847	if (rc == VERR_DBGC_BP_EXISTS)
848	{
849	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
850	if (RT_SUCCESS(rc))
851	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Updated breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
852	}
853	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
854	AssertRC(rc2);
855	}
856	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Failed to set breakpoint at %RGv, rc=%Rrc.\n", Address.FlatPtr, rc);
857	}
858
859
860	/**
861	* The 'br' command.
862	*
863	* @returns VBox status.
864	* @param pCmd Pointer to the command descriptor (as registered).
865	* @param pCmdHlp Pointer to command helper functions.
866	* @param pVM Pointer to the current VM (if any).
867	* @param paArgs Pointer to (readonly) array of arguments.
868	* @param cArgs Number of arguments in the array.
869	*/
870	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD /pCmd/, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
871	{
872	/*
873	* Convert the pointer to a DBGF address.
874	*/
875	DBGFADDRESS Address;
876	int rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
877	if (RT_FAILURE(rc))
878	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Couldn't convert '%DV' to a DBGF address, rc=%Rrc.\n", &paArgs[0], rc);
879
880	/*
881	* Pick out the optional arguments.
882	*/
883	uint64_t iHitTrigger = 0;
884	uint64_t iHitDisable = ~0;
885	const char *pszCmds = NULL;
886	unsigned iArg = 1;
887	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
888	{
889	iHitTrigger = paArgs[iArg].u.u64Number;
890	iArg++;
891	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
892	{
893	iHitDisable = paArgs[iArg].u.u64Number;
894	iArg++;
895	}
896	}
897	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
898	{
899	pszCmds = paArgs[iArg].u.pszString;
900	iArg++;
901	}
902
903	/*
904	* Try set the breakpoint.
905	*/
906	RTUINT iBp;
907	rc = DBGFR3BpSetREM(pVM, &Address, iHitTrigger, iHitDisable, &iBp);
908	if (RT_SUCCESS(rc))
909	{
910	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
911	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
912	if (RT_SUCCESS(rc))
913	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Set REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
914	if (rc == VERR_DBGC_BP_EXISTS)
915	{
916	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
917	if (RT_SUCCESS(rc))
918	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Updated REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
919	}
920	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
921	AssertRC(rc2);
922	}
923	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Failed to set REM breakpoint at %RGv, rc=%Rrc.\n", Address.FlatPtr, rc);
924	}
925
926
927	/**
928	* The 'u' command.
929	*
930	* @returns VBox status.
931	* @param pCmd Pointer to the command descriptor (as registered).
932	* @param pCmdHlp Pointer to command helper functions.
933	* @param pVM Pointer to the current VM (if any).
934	* @param paArgs Pointer to (readonly) array of arguments.
935	* @param cArgs Number of arguments in the array.
936	*/
937	static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
938	{
939	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
940
941	/*
942	* Validate input.
943	*/
944	if ( cArgs > 1
945	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
946	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
947	if (!pVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
948	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Don't know where to start disassembling...\n");
949	if (!pVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
950	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: GC address but no VM.\n");
951
952	unsigned fFlags = DBGF_DISAS_FLAGS_NO_ADDRESS;
953
954	/*
955	* Check the desired mode.
956	*/
957	switch (pCmd->pszCmd[1])
958	{
959	default: AssertFailed();
960	case '\0': fFlags \|= DBGF_DISAS_FLAGS_DEFAULT_MODE; break;
961	case '6': fFlags \|= DBGF_DISAS_FLAGS_64BIT_MODE; break;
962	case '3': fFlags \|= DBGF_DISAS_FLAGS_32BIT_MODE; break;
963	case '1': fFlags \|= DBGF_DISAS_FLAGS_16BIT_MODE; break;
964	case 'v': fFlags \|= DBGF_DISAS_FLAGS_16BIT_REAL_MODE; break;
965	}
966
967	/*
968	* Find address.
969	*/
970	if (!cArgs)
971	{
972	if (!DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
973	{
974	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
975	if ( pDbgc->fRegCtxGuest
976	&& CPUMIsGuestIn64BitCodeEx(CPUMQueryGuestCtxPtr(pVCpu)))
977	{
978	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FLAT;
979	pDbgc->SourcePos.u.GCFlat = CPUMGetGuestRIP(pVCpu);
980	}
981	else
982	{
983	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FAR;
984	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
985	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
986	}
987
988	if (pDbgc->fRegCtxGuest)
989	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_GUEST;
990	else
991	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_HYPER;
992	}
993	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
994	}
995	else
996	pDbgc->DisasmPos = paArgs[0];
997	pDbgc->pLastPos = &pDbgc->DisasmPos;
998
999	/*
1000	* Range.
1001	*/
1002	switch (pDbgc->DisasmPos.enmRangeType)
1003	{
1004	case DBGCVAR_RANGE_NONE:
1005	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1006	pDbgc->DisasmPos.u64Range = 10;
1007	break;
1008
1009	case DBGCVAR_RANGE_ELEMENTS:
1010	if (pDbgc->DisasmPos.u64Range > 2048)
1011	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
1012	break;
1013
1014	case DBGCVAR_RANGE_BYTES:
1015	if (pDbgc->DisasmPos.u64Range > 65536)
1016	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
1017	break;
1018
1019	default:
1020	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DisasmPos.enmRangeType);
1021	}
1022
1023	/*
1024	* Convert physical and host addresses to guest addresses.
1025	*/
1026	int rc;
1027	switch (pDbgc->DisasmPos.enmType)
1028	{
1029	case DBGCVAR_TYPE_GC_FLAT:
1030	case DBGCVAR_TYPE_GC_FAR:
1031	break;
1032	case DBGCVAR_TYPE_GC_PHYS:
1033	case DBGCVAR_TYPE_HC_FLAT:
1034	case DBGCVAR_TYPE_HC_PHYS:
1035	case DBGCVAR_TYPE_HC_FAR:
1036	{
1037	DBGCVAR VarTmp;
1038	rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1039	if (RT_FAILURE(rc))
1040	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: failed to evaluate '%%(%Dv)' -> %Rrc .\n", &pDbgc->DisasmPos, rc);
1041	pDbgc->DisasmPos = VarTmp;
1042	break;
1043	}
1044	default: AssertFailed(); break;
1045	}
1046
1047	/*
1048	* Print address.
1049	* todo: Change to list near.
1050	*/
1051	#if 0
1052	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DisasmPos);
1053	if (RT_FAILURE(rc))
1054	return rc;
1055	#endif
1056
1057	/*
1058	* Do the disassembling.
1059	*/
1060	unsigned cTries = 32;
1061	int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1062	if (iRangeLeft == 0) /* kludge for 'r'. */
1063	iRangeLeft = -1;
1064	for (;;)
1065	{
1066	/*
1067	* Disassemble the instruction.
1068	*/
1069	char szDis[256];
1070	uint32_t cbInstr = 1;
1071	if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1072	rc = DBGFR3DisasInstrEx(pVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1073	&szDis[0], sizeof(szDis), &cbInstr);
1074	else
1075	rc = DBGFR3DisasInstrEx(pVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1076	&szDis[0], sizeof(szDis), &cbInstr);
1077	if (RT_SUCCESS(rc))
1078	{
1079	/* print it */
1080	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1081	if (RT_FAILURE(rc))
1082	return rc;
1083	}
1084	else
1085	{
1086	/* bitch. */
1087	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to disassemble instruction, skipping one byte.\n");
1088	if (RT_FAILURE(rc))
1089	return rc;
1090	if (cTries-- > 0)
1091	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Too many disassembly failures. Giving up.\n");
1092	cbInstr = 1;
1093	}
1094
1095	/* advance */
1096	if (iRangeLeft < 0) /* 'r' */
1097	break;
1098	if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1099	iRangeLeft--;
1100	else
1101	iRangeLeft -= cbInstr;
1102	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1103	if (RT_FAILURE(rc))
1104	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DisasmPos, cbInstr);
1105	if (iRangeLeft <= 0)
1106	break;
1107	fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_CURRENT_HYPER);
1108	}
1109
1110	NOREF(pCmd); NOREF(pResult);
1111	return 0;
1112	}
1113
1114
1115	/**
1116	* The 'ls' command.
1117	*
1118	* @returns VBox status.
1119	* @param pCmd Pointer to the command descriptor (as registered).
1120	* @param pCmdHlp Pointer to command helper functions.
1121	* @param pVM Pointer to the current VM (if any).
1122	* @param paArgs Pointer to (readonly) array of arguments.
1123	* @param cArgs Number of arguments in the array.
1124	*/
1125	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1126	{
1127	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1128
1129	/*
1130	* Validate input.
1131	*/
1132	if ( cArgs > 1
1133	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
1134	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
1135	if (!pVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1136	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Don't know where to start disassembling...\n");
1137	if (!pVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1138	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: GC address but no VM.\n");
1139
1140	/*
1141	* Find address.
1142	*/
1143	if (!cArgs)
1144	{
1145	if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1146	{
1147	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
1148	pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1149	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1150	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1151	}
1152	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1153	}
1154	else
1155	pDbgc->SourcePos = paArgs[0];
1156	pDbgc->pLastPos = &pDbgc->SourcePos;
1157
1158	/*
1159	* Ensure the source address is flat GC.
1160	*/
1161	switch (pDbgc->SourcePos.enmType)
1162	{
1163	case DBGCVAR_TYPE_GC_FLAT:
1164	break;
1165	case DBGCVAR_TYPE_GC_PHYS:
1166	case DBGCVAR_TYPE_GC_FAR:
1167	case DBGCVAR_TYPE_HC_FLAT:
1168	case DBGCVAR_TYPE_HC_PHYS:
1169	case DBGCVAR_TYPE_HC_FAR:
1170	{
1171	int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1172	if (RT_FAILURE(rc))
1173	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid address or address type. (rc=%d)\n", rc);
1174	break;
1175	}
1176	default: AssertFailed(); break;
1177	}
1178
1179	/*
1180	* Range.
1181	*/
1182	switch (pDbgc->SourcePos.enmRangeType)
1183	{
1184	case DBGCVAR_RANGE_NONE:
1185	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1186	pDbgc->SourcePos.u64Range = 10;
1187	break;
1188
1189	case DBGCVAR_RANGE_ELEMENTS:
1190	if (pDbgc->SourcePos.u64Range > 2048)
1191	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
1192	break;
1193
1194	case DBGCVAR_RANGE_BYTES:
1195	if (pDbgc->SourcePos.u64Range > 65536)
1196	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
1197	break;
1198
1199	default:
1200	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1201	}
1202
1203	/*
1204	* Do the disassembling.
1205	*/
1206	bool fFirst = 1;
1207	DBGFLINE LinePrev = { 0, 0, "" };
1208	int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1209	if (iRangeLeft == 0) /* kludge for 'r'. */
1210	iRangeLeft = -1;
1211	for (;;)
1212	{
1213	/*
1214	* Get line info.
1215	*/
1216	DBGFLINE Line;
1217	RTGCINTPTR off;
1218	int rc = DBGFR3LineByAddr(pVM, pDbgc->SourcePos.u.GCFlat, &off, &Line);
1219	if (RT_FAILURE(rc))
1220	return VINF_SUCCESS;
1221
1222	unsigned cLines = 0;
1223	if (memcmp(&Line, &LinePrev, sizeof(Line)))
1224	{
1225	/*
1226	* Print filenamename
1227	*/
1228	if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1229	fFirst = true;
1230	if (fFirst)
1231	{
1232	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1233	if (RT_FAILURE(rc))
1234	return rc;
1235	}
1236
1237	/*
1238	* Try open the file and read the line.
1239	*/
1240	FILE *phFile = fopen(Line.szFilename, "r");
1241	if (phFile)
1242	{
1243	/* Skip ahead to the desired line. */
1244	char szLine[4096];
1245	unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1246	if (cBefore > 7)
1247	cBefore = 0;
1248	unsigned cLeft = Line.uLineNo - cBefore;
1249	while (cLeft > 0)
1250	{
1251	szLine[0] = '\0';
1252	if (!fgets(szLine, sizeof(szLine), phFile))
1253	break;
1254	cLeft--;
1255	}
1256	if (!cLeft)
1257	{
1258	/* print the before lines */
1259	for (;;)
1260	{
1261	size_t cch = strlen(szLine);
1262	while (cch > 0 && (szLine[cch - 1] == '\r' \|\| szLine[cch - 1] == '\n' \|\| RT_C_IS_SPACE(szLine[cch - 1])) )
1263	szLine[--cch] = '\0';
1264	if (cBefore-- <= 0)
1265	break;
1266
1267	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1268	szLine[0] = '\0';
1269	fgets(szLine, sizeof(szLine), phFile);
1270	cLines++;
1271	}
1272	/* print the actual line */
1273	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1274	}
1275	fclose(phFile);
1276	if (RT_FAILURE(rc))
1277	return rc;
1278	fFirst = false;
1279	}
1280	else
1281	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1282
1283	LinePrev = Line;
1284	}
1285
1286
1287	/*
1288	* Advance
1289	*/
1290	if (iRangeLeft < 0) /* 'r' */
1291	break;
1292	if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1293	iRangeLeft -= cLines;
1294	else
1295	iRangeLeft -= 1;
1296	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1297	if (RT_FAILURE(rc))
1298	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1299	if (iRangeLeft <= 0)
1300	break;
1301	}
1302
1303	NOREF(pCmd); NOREF(pResult);
1304	return 0;
1305	}
1306
1307
1308	/**
1309	* The 'r' command.
1310	*
1311	* @returns VBox status.
1312	* @param pCmd Pointer to the command descriptor (as registered).
1313	* @param pCmdHlp Pointer to command helper functions.
1314	* @param pVM Pointer to the current VM (if any).
1315	* @param paArgs Pointer to (readonly) array of arguments.
1316	* @param cArgs Number of arguments in the array.
1317	*/
1318	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1319	{
1320	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1321	if (!pDbgc->fRegCtxGuest)
1322	return dbgcCmdRegHyper(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
1323	return dbgcCmdRegGuest(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
1324	}
1325
1326
1327	/**
1328	* Common worker for the dbgcCmdReg*() commands.
1329	*
1330	* @returns VBox status.
1331	* @param pCmd Pointer to the command descriptor (as registered).
1332	* @param pCmdHlp Pointer to command helper functions.
1333	* @param pVM Pointer to the current VM (if any).
1334	* @param paArgs Pointer to (readonly) array of arguments.
1335	* @param cArgs Number of arguments in the array.
1336	* @param pszPrefix The symbol prefix.
1337	*/
1338	static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs,
1339	PDBGCVAR pResult, const char *pszPrefix)
1340	{
1341	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1342	Assert(cArgs == 1 \|\| cArgs == 2); /* cArgs == 0 is handled by the caller */
1343	if ( paArgs[0].enmType != DBGCVAR_TYPE_STRING
1344	&& paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL)
1345	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. Try drop the '@' or/and quote the register name\n");
1346
1347	/*
1348	* Parse the register name and kind.
1349	*/
1350	const char *pszReg = paArgs[0].u.pszString;
1351	if (*pszReg == '@')
1352	pszReg++;
1353	VMCPUID idCpu = pDbgc->idCpu;
1354	if (*pszPrefix)
1355	idCpu \|= DBGFREG_HYPER_VMCPUID;
1356	if (*pszReg == '.')
1357	{
1358	pszReg++;
1359	idCpu \|= DBGFREG_HYPER_VMCPUID;
1360	}
1361	const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1362
1363	/*
1364	* Query the register type & value (the setter needs the type).
1365	*/
1366	DBGFREGVALTYPE enmType;
1367	DBGFREGVAL Value;
1368	int rc = DBGFR3RegNmQuery(pVM, idCpu, pszReg, &Value, &enmType);
1369	if (RT_FAILURE(rc))
1370	{
1371	if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1372	return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1373	pszActualPrefix, pszReg);
1374	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1375	pszActualPrefix, pszReg, rc);
1376	}
1377	if (cArgs == 1)
1378	{
1379	/*
1380	* Show the register.
1381	*/
1382	char szValue[160];
1383	rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /fSpecial/);
1384	if (RT_SUCCESS(rc))
1385	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1386	else
1387	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1388	}
1389	else if (cArgs == 2)
1390	{
1391	/*
1392	* Modify the register.
1393	*/
1394	if ( paArgs[1].enmType == DBGCVAR_TYPE_STRING
1395	\|\| paArgs[1].enmType == DBGCVAR_TYPE_SYMBOL)
1396	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly on the 2nd argument yet...\n");
1397	if (enmType != DBGFREGVALTYPE_DTR)
1398	{
1399	enmType = DBGFREGVALTYPE_U64;
1400	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.u64);
1401	}
1402	else
1403	{
1404	enmType = DBGFREGVALTYPE_DTR;
1405	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.dtr.u64Base);
1406	if (RT_SUCCESS(rc) && paArgs[1].enmRangeType != DBGCVAR_RANGE_NONE)
1407	Value.dtr.u32Limit = (uint32_t)paArgs[1].u64Range;
1408	}
1409	if (RT_SUCCESS(rc))
1410	{
1411	rc = DBGFR3RegNmSet(pVM, idCpu, pszReg, &Value, enmType);
1412	if (RT_FAILURE(rc))
1413	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1414	pszActualPrefix, pszReg, rc);
1415	}
1416	else
1417	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1418	}
1419	else
1420	{
1421	NOREF(pCmd); NOREF(paArgs); NOREF(pResult);
1422	rc = DBGCCmdHlpPrintf(pCmdHlp, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1423	}
1424	return rc;
1425	}
1426
1427
1428	/**
1429	* The 'rg', 'rg64' and 'rg32' commands.
1430	*
1431	* @returns VBox status.
1432	* @param pCmd Pointer to the command descriptor (as registered).
1433	* @param pCmdHlp Pointer to command helper functions.
1434	* @param pVM Pointer to the current VM (if any).
1435	* @param paArgs Pointer to (readonly) array of arguments.
1436	* @param cArgs Number of arguments in the array.
1437	*/
1438	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1439	{
1440	/*
1441	* Show all registers our selves.
1442	*/
1443	if (cArgs == 0)
1444	{
1445	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1446	bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1447	\|\| ( !strcmp(pCmd->pszCmd, "rg32")
1448	&& CPUMIsGuestIn64BitCodeEx(CPUMQueryGuestCtxPtr(VMMGetCpuById(pVM, pDbgc->idCpu))));
1449	char szDisAndRegs[8192];
1450	int rc;
1451
1452	if (pDbgc->fRegTerse)
1453	{
1454	if (f64BitMode)
1455	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1456	"u %016VR{rip} L 0\n"
1457	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1458	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1459	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1460	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1461	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1462	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1463	else
1464	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1465	"u %04VR{cs}:%08VR{eip} L 0\n"
1466	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1467	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1468	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1469	}
1470	else
1471	{
1472	if (f64BitMode)
1473	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1474	"u %016VR{rip} L 0\n"
1475	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1476	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1477	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1478	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1479	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1480	"cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1481	"ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1482	"es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1483	"fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1484	"gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1485	"ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1486	"dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1487	"dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1488	"gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1489	"ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1490	"tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1491	" sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1492	" efer=%016VR{efer}\n"
1493	" pat=%016VR{pat}\n"
1494	" sf_mask=%016VR{sf_mask}\n"
1495	"krnl_gs_base=%016VR{krnl_gs_base}\n"
1496	" lstar=%016VR{lstar}\n"
1497	" star=%016VR{star} cstar=%016VR{cstar}\n"
1498	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1499	);
1500	else
1501	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1502	"u %04VR{cs}:%08VR{eip} L 0\n"
1503	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1504	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1505	"cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1506	"ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1507	"es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr6=%08VR{dr6}\n"
1508	"fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr0}\n"
1509	"gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr0} cr4=%08VR{cr0}\n"
1510	"ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1511	"gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1512	"ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1513	"tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1514	"sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1515	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1516	);
1517	}
1518	if (RT_FAILURE(rc))
1519	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1520	char *pszRegs = strchr(szDisAndRegs, '\n');
1521	*pszRegs++ = '\0';
1522	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1523
1524	/*
1525	* Disassemble one instruction at cs:[r\|e]ip.
1526	*/
1527	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1528	}
1529	return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult, "");
1530	}
1531
1532
1533	/**
1534	* The 'rh' command.
1535	*
1536	* @returns VBox status.
1537	* @param pCmd Pointer to the command descriptor (as registered).
1538	* @param pCmdHlp Pointer to command helper functions.
1539	* @param pVM Pointer to the current VM (if any).
1540	* @param paArgs Pointer to (readonly) array of arguments.
1541	* @param cArgs Number of arguments in the array.
1542	*/
1543	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1544	{
1545	/*
1546	* Show all registers our selves.
1547	*/
1548	if (cArgs == 0)
1549	{
1550	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1551	char szDisAndRegs[8192];
1552	int rc;
1553
1554	if (pDbgc->fRegTerse)
1555	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1556	"u %VR{cs}:%VR{eip} L 0\n"
1557	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1558	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1559	".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1560	else
1561	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1562	"u %04VR{cs}:%08VR{eip} L 0\n"
1563	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1564	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1565	".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1566	".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1567	".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1568	".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1569	".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1570	".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1571	".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1572	".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1573	".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1574	);
1575	if (RT_FAILURE(rc))
1576	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1577	char *pszRegs = strchr(szDisAndRegs, '\n');
1578	*pszRegs++ = '\0';
1579	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1580
1581	/*
1582	* Disassemble one instruction at cs:[r\|e]ip.
1583	*/
1584	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1585	}
1586	return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult, ".");
1587	}
1588
1589
1590	/**
1591	* The 'rt' command.
1592	*
1593	* @returns VBox status.
1594	* @param pCmd Pointer to the command descriptor (as registered).
1595	* @param pCmdHlp Pointer to command helper functions.
1596	* @param pVM Pointer to the current VM (if any).
1597	* @param paArgs Pointer to (readonly) array of arguments.
1598	* @param cArgs Number of arguments in the array.
1599	*/
1600	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1601	{
1602	NOREF(pCmd); NOREF(pVM); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1603
1604	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1605	pDbgc->fRegTerse = !pDbgc->fRegTerse;
1606	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1607	}
1608
1609
1610	/**
1611	* The 't' command.
1612	*
1613	* @returns VBox status.
1614	* @param pCmd Pointer to the command descriptor (as registered).
1615	* @param pCmdHlp Pointer to command helper functions.
1616	* @param pVM Pointer to the current VM (if any).
1617	* @param paArgs Pointer to (readonly) array of arguments.
1618	* @param cArgs Number of arguments in the array.
1619	*/
1620	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1621	{
1622	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1623
1624	int rc = DBGFR3Step(pVM, pDbgc->idCpu);
1625	if (RT_SUCCESS(rc))
1626	pDbgc->fReady = false;
1627	else
1628	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1629
1630	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1631	return rc;
1632	}
1633
1634
1635	/**
1636	* The 'k', 'kg' and 'kh' commands.
1637	*
1638	* @returns VBox status.
1639	* @param pCmd Pointer to the command descriptor (as registered).
1640	* @param pCmdHlp Pointer to command helper functions.
1641	* @param pVM Pointer to the current VM (if any).
1642	* @param paArgs Pointer to (readonly) array of arguments.
1643	* @param cArgs Number of arguments in the array.
1644	*/
1645	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1646	{
1647	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1648
1649	/*
1650	* Figure which context we're called for and start walking that stack.
1651	*/
1652	int rc;
1653	PCDBGFSTACKFRAME pFirstFrame;
1654	bool const fGuest = pCmd->pszCmd[1] == 'g'
1655	\|\| (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1656	rc = DBGFR3StackWalkBegin(pVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1657	if (RT_FAILURE(rc))
1658	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to begin stack walk, rc=%Rrc\n", rc);
1659
1660	/*
1661	* Print header.
1662	* 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1663	*/
1664	uint32_t fBitFlags = 0;
1665	for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1666	pFrame;
1667	pFrame = DBGFR3StackWalkNext(pFrame))
1668	{
1669	uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT \| DBGFSTACKFRAME_FLAGS_32BIT \| DBGFSTACKFRAME_FLAGS_64BIT);
1670	if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1671	{
1672	if (fCurBitFlags != fBitFlags)
1673	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1674	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1675	pFrame->AddrFrame.Sel,
1676	(uint16_t)pFrame->AddrFrame.off,
1677	pFrame->AddrReturnFrame.Sel,
1678	(uint16_t)pFrame->AddrReturnFrame.off,
1679	(uint32_t)pFrame->AddrReturnPC.Sel,
1680	(uint32_t)pFrame->AddrReturnPC.off,
1681	pFrame->Args.au32[0],
1682	pFrame->Args.au32[1],
1683	pFrame->Args.au32[2],
1684	pFrame->Args.au32[3]);
1685	}
1686	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1687	{
1688	if (fCurBitFlags != fBitFlags)
1689	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1690	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1691	(uint32_t)pFrame->AddrFrame.off,
1692	(uint32_t)pFrame->AddrReturnFrame.off,
1693	(uint32_t)pFrame->AddrReturnPC.Sel,
1694	(uint32_t)pFrame->AddrReturnPC.off,
1695	pFrame->Args.au32[0],
1696	pFrame->Args.au32[1],
1697	pFrame->Args.au32[2],
1698	pFrame->Args.au32[3]);
1699	}
1700	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1701	{
1702	if (fCurBitFlags != fBitFlags)
1703	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1704	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%016RX64 %04RX16:%016RX64 %016RX64",
1705	(uint64_t)pFrame->AddrFrame.off,
1706	pFrame->AddrReturnFrame.Sel,
1707	(uint64_t)pFrame->AddrReturnFrame.off,
1708	(uint64_t)pFrame->AddrReturnPC.off);
1709	}
1710	if (RT_FAILURE(rc))
1711	break;
1712	if (!pFrame->pSymPC)
1713	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1714	fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1715	? " %RTsel:%016RGv"
1716	: fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1717	? " %RTsel:%08RGv"
1718	: " %RTsel:%04RGv"
1719	, pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1720	else
1721	{
1722	RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1723	if (offDisp > 0)
1724	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1725	else if (offDisp < 0)
1726	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1727	else
1728	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s", pFrame->pSymPC->szName);
1729	}
1730	if (RT_SUCCESS(rc) && pFrame->pLinePC)
1731	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1732	if (RT_SUCCESS(rc))
1733	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
1734	if (RT_FAILURE(rc))
1735	break;
1736
1737	fBitFlags = fCurBitFlags;
1738	}
1739
1740	DBGFR3StackWalkEnd(pFirstFrame);
1741
1742	NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1743	return rc;
1744	}
1745
1746
1747	static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1748	{
1749	/* GUEST64 */
1750	int rc;
1751
1752	const char *pszHyper = fHyper ? " HYPER" : "";
1753	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1754	if (pDesc->Gen.u1DescType)
1755	{
1756	static const char * const s_apszTypes[] =
1757	{
1758	"DataRO", /* 0 Read-Only */
1759	"DataRO", /* 1 Read-Only - Accessed */
1760	"DataRW", /* 2 Read/Write */
1761	"DataRW", /* 3 Read/Write - Accessed */
1762	"DownRO", /* 4 Expand-down, Read-Only */
1763	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1764	"DownRW", /* 6 Expand-down, Read/Write */
1765	"DownRO", /* 7 Expand-down, Read/Write - Accessed */
1766	"CodeEO", /* 8 Execute-Only */
1767	"CodeEO", /* 9 Execute-Only - Accessed */
1768	"CodeER", /* A Execute/Readable */
1769	"CodeER", /* B Execute/Readable - Accessed */
1770	"ConfE0", /* C Conforming, Execute-Only */
1771	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1772	"ConfER", /* E Conforming, Execute/Readable */
1773	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1774	};
1775	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1776	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1777	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1778	uint32_t u32Base = X86DESC_BASE(*pDesc);
1779	uint32_t cbLimit = X86DESC_LIMIT(*pDesc);
1780	if (pDesc->Gen.u1Granularity)
1781	cbLimit <<= PAGE_SHIFT;
1782
1783	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1784	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1785	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1786	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1787	}
1788	else
1789	{
1790	static const char * const s_apszTypes[] =
1791	{
1792	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1793	"Ill-1 ", /* 1 0001 Available 16-bit TSS */
1794	"LDT ", /* 2 0010 LDT */
1795	"Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1796	"Ill-4 ", /* 4 0100 16-bit Call Gate */
1797	"Ill-5 ", /* 5 0101 Task Gate */
1798	"Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1799	"Ill-7 ", /* 7 0111 16-bit Trap Gate */
1800	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1801	"Tss64A", /* 9 1001 Available 32-bit TSS */
1802	"Ill-A ", /* A 1010 Reserved (Illegal) */
1803	"Tss64B", /* B 1011 Busy 32-bit TSS */
1804	"Call64", /* C 1100 32-bit Call Gate */
1805	"Ill-D ", /* D 1101 Reserved (Illegal) */
1806	"Int64 ", /* E 1110 32-bit Interrupt Gate */
1807	"Trap64" /* F 1111 32-bit Trap Gate */
1808	};
1809	switch (pDesc->Gen.u4Type)
1810	{
1811	/* raw */
1812	case X86_SEL_TYPE_SYS_UNDEFINED:
1813	case X86_SEL_TYPE_SYS_UNDEFINED2:
1814	case X86_SEL_TYPE_SYS_UNDEFINED4:
1815	case X86_SEL_TYPE_SYS_UNDEFINED3:
1816	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1817	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1818	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1819	case X86_SEL_TYPE_SYS_286_INT_GATE:
1820	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1821	case X86_SEL_TYPE_SYS_TASK_GATE:
1822	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1823	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1824	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1825	break;
1826
1827	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1828	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1829	case X86_SEL_TYPE_SYS_LDT:
1830	{
1831	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1832	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1833	const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1834
1835	uint64_t u32Base = X86DESC64_BASE(*pDesc);
1836	uint32_t cbLimit = X86DESC_LIMIT(*pDesc);
1837
1838	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1839	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1840	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1841	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1842	pszHyper);
1843	if (pfDblEntry)
1844	*pfDblEntry = true;
1845	break;
1846	}
1847
1848	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1849	{
1850	unsigned cParams = pDesc->au8[4] & 0x1f;
1851	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1852	RTSEL sel = pDesc->au16[1];
1853	uint64_t off = pDesc->au16[0]
1854	\| ((uint64_t)pDesc->au16[3] << 16)
1855	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1856	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1857	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1858	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1859	if (pfDblEntry)
1860	*pfDblEntry = true;
1861	break;
1862	}
1863
1864	case X86_SEL_TYPE_SYS_386_INT_GATE:
1865	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1866	{
1867	RTSEL sel = pDesc->au16[1];
1868	uint64_t off = pDesc->au16[0]
1869	\| ((uint64_t)pDesc->au16[3] << 16)
1870	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1871	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1872	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1873	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1874	if (pfDblEntry)
1875	*pfDblEntry = true;
1876	break;
1877	}
1878
1879	/* impossible, just it's necessary to keep gcc happy. */
1880	default:
1881	return VINF_SUCCESS;
1882	}
1883	}
1884	return VINF_SUCCESS;
1885	}
1886
1887
1888	/**
1889	* Worker function that displays one descriptor entry (GDT, LDT, IDT).
1890	*
1891	* @returns pfnPrintf status code.
1892	* @param pCmdHlp The DBGC command helpers.
1893	* @param pDesc The descriptor to display.
1894	* @param iEntry The descriptor entry number.
1895	* @param fHyper Whether the selector belongs to the hypervisor or not.
1896	*/
1897	static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1898	{
1899	int rc;
1900
1901	const char *pszHyper = fHyper ? " HYPER" : "";
1902	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1903	if (pDesc->Gen.u1DescType)
1904	{
1905	static const char * const s_apszTypes[] =
1906	{
1907	"DataRO", /* 0 Read-Only */
1908	"DataRO", /* 1 Read-Only - Accessed */
1909	"DataRW", /* 2 Read/Write */
1910	"DataRW", /* 3 Read/Write - Accessed */
1911	"DownRO", /* 4 Expand-down, Read-Only */
1912	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1913	"DownRW", /* 6 Expand-down, Read/Write */
1914	"DownRO", /* 7 Expand-down, Read/Write - Accessed */
1915	"CodeEO", /* 8 Execute-Only */
1916	"CodeEO", /* 9 Execute-Only - Accessed */
1917	"CodeER", /* A Execute/Readable */
1918	"CodeER", /* B Execute/Readable - Accessed */
1919	"ConfE0", /* C Conforming, Execute-Only */
1920	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1921	"ConfER", /* E Conforming, Execute/Readable */
1922	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1923	};
1924	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1925	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1926	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1927	uint32_t u32Base = pDesc->Gen.u16BaseLow
1928	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1929	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1930	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1931	if (pDesc->Gen.u1Granularity)
1932	cbLimit <<= PAGE_SHIFT;
1933
1934	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1935	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1936	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1937	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1938	}
1939	else
1940	{
1941	static const char * const s_apszTypes[] =
1942	{
1943	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1944	"Tss16A", /* 1 0001 Available 16-bit TSS */
1945	"LDT ", /* 2 0010 LDT */
1946	"Tss16B", /* 3 0011 Busy 16-bit TSS */
1947	"Call16", /* 4 0100 16-bit Call Gate */
1948	"TaskG ", /* 5 0101 Task Gate */
1949	"Int16 ", /* 6 0110 16-bit Interrupt Gate */
1950	"Trap16", /* 7 0111 16-bit Trap Gate */
1951	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1952	"Tss32A", /* 9 1001 Available 32-bit TSS */
1953	"Ill-A ", /* A 1010 Reserved (Illegal) */
1954	"Tss32B", /* B 1011 Busy 32-bit TSS */
1955	"Call32", /* C 1100 32-bit Call Gate */
1956	"Ill-D ", /* D 1101 Reserved (Illegal) */
1957	"Int32 ", /* E 1110 32-bit Interrupt Gate */
1958	"Trap32" /* F 1111 32-bit Trap Gate */
1959	};
1960	switch (pDesc->Gen.u4Type)
1961	{
1962	/* raw */
1963	case X86_SEL_TYPE_SYS_UNDEFINED:
1964	case X86_SEL_TYPE_SYS_UNDEFINED2:
1965	case X86_SEL_TYPE_SYS_UNDEFINED4:
1966	case X86_SEL_TYPE_SYS_UNDEFINED3:
1967	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1968	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1969	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1970	break;
1971
1972	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1973	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1974	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1975	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1976	case X86_SEL_TYPE_SYS_LDT:
1977	{
1978	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1979	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1980	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1981	uint32_t u32Base = pDesc->Gen.u16BaseLow
1982	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1983	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1984	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1985	if (pDesc->Gen.u1Granularity)
1986	cbLimit <<= PAGE_SHIFT;
1987
1988	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1989	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1990	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1991	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1992	pszHyper);
1993	break;
1994	}
1995
1996	case X86_SEL_TYPE_SYS_TASK_GATE:
1997	{
1998	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s TSS=%04x DPL=%d %s%s\n",
1999	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
2000	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
2001	break;
2002	}
2003
2004	case X86_SEL_TYPE_SYS_286_CALL_GATE:
2005	case X86_SEL_TYPE_SYS_386_CALL_GATE:
2006	{
2007	unsigned cParams = pDesc->au8[4] & 0x1f;
2008	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
2009	RTSEL sel = pDesc->au16[1];
2010	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
2011	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
2012	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2013	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
2014	break;
2015	}
2016
2017	case X86_SEL_TYPE_SYS_286_INT_GATE:
2018	case X86_SEL_TYPE_SYS_386_INT_GATE:
2019	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
2020	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
2021	{
2022	RTSEL sel = pDesc->au16[1];
2023	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
2024	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
2025	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2026	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
2027	break;
2028	}
2029
2030	/* impossible, just it's necessary to keep gcc happy. */
2031	default:
2032	return VINF_SUCCESS;
2033	}
2034	}
2035	return rc;
2036	}
2037
2038
2039	/**
2040	* The 'dg', 'dga', 'dl' and 'dla' commands.
2041	*
2042	* @returns VBox status.
2043	* @param pCmd Pointer to the command descriptor (as registered).
2044	* @param pCmdHlp Pointer to command helper functions.
2045	* @param pVM Pointer to the current VM (if any).
2046	* @param paArgs Pointer to (readonly) array of arguments.
2047	* @param cArgs Number of arguments in the array.
2048	*/
2049	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2050	{
2051	/*
2052	* Validate input.
2053	*/
2054	if (!pVM)
2055	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2056
2057	/*
2058	* Get the CPU mode, check which command variation this is
2059	* and fix a default parameter if needed.
2060	*/
2061	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2062	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
2063	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2064	bool fGdt = pCmd->pszCmd[1] == 'g';
2065	bool fAll = pCmd->pszCmd[2] == 'a';
2066	RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
2067
2068	DBGCVAR Var;
2069	if (!cArgs)
2070	{
2071	cArgs = 1;
2072	paArgs = &Var;
2073	Var.enmType = DBGCVAR_TYPE_NUMBER;
2074	Var.u.u64Number = 0;
2075	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2076	Var.u64Range = 1024;
2077	}
2078
2079	/*
2080	* Process the arguments.
2081	*/
2082	for (unsigned i = 0; i < cArgs; i++)
2083	{
2084	/*
2085	* Retrieve the selector value from the argument.
2086	* The parser may confuse pointers and numbers if more than one
2087	* argument is given, that that into account.
2088	*/
2089	/* check that what we got makes sense as we don't trust the parser yet. */
2090	if ( paArgs[i].enmType != DBGCVAR_TYPE_NUMBER
2091	&& !DBGCVAR_ISPOINTER(paArgs[i].enmType))
2092	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number or pointer type but %d.\n", i, paArgs[i].enmType);
2093	uint64_t u64;
2094	unsigned cSels = 1;
2095	switch (paArgs[i].enmType)
2096	{
2097	case DBGCVAR_TYPE_NUMBER:
2098	u64 = paArgs[i].u.u64Number;
2099	if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2100	cSels = RT_MIN(paArgs[i].u64Range, 1024);
2101	break;
2102	case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2103	case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2104	case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2105	case DBGCVAR_TYPE_HC_FAR: u64 = paArgs[i].u.HCFar.sel; break;
2106	case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2107	case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2108	default: u64 = _64K; break;
2109	}
2110	if (u64 < _64K)
2111	{
2112	unsigned Sel = (RTSEL)u64;
2113
2114	/*
2115	* Dump the specified range.
2116	*/
2117	bool fSingle = cSels == 1;
2118	while ( cSels-- > 0
2119	&& Sel < _64K)
2120	{
2121	DBGFSELINFO SelInfo;
2122	int rc = DBGFR3SelQueryInfo(pVM, pDbgc->idCpu, Sel \| SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2123	if (RT_SUCCESS(rc))
2124	{
2125	if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2126	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x RealM Bas=%04x Lim=%04x\n",
2127	Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2128	else if ( fAll
2129	\|\| fSingle
2130	\|\| SelInfo.u.Raw.Gen.u1Present)
2131	{
2132	if (enmMode == CPUMMODE_PROTECTED)
2133	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2134	else
2135	{
2136	bool fDblSkip = false;
2137	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2138	if (fDblSkip)
2139	Sel += 4;
2140	}
2141	}
2142	}
2143	else
2144	{
2145	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %Rrc\n", Sel, rc);
2146	if (!fAll)
2147	return rc;
2148	}
2149	if (RT_FAILURE(rc))
2150	return rc;
2151
2152	/* next */
2153	Sel += 8;
2154	}
2155	}
2156	else
2157	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds\n", u64);
2158	}
2159
2160	NOREF(pResult);
2161	return VINF_SUCCESS;
2162	}
2163
2164
2165	/**
2166	* The 'di' and 'dia' commands.
2167	*
2168	* @returns VBox status.
2169	* @param pCmd Pointer to the command descriptor (as registered).
2170	* @param pCmdHlp Pointer to command helper functions.
2171	* @param pVM Pointer to the current VM (if any).
2172	* @param paArgs Pointer to (readonly) array of arguments.
2173	* @param cArgs Number of arguments in the array.
2174	*/
2175	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2176	{
2177	/*
2178	* Validate input.
2179	*/
2180	if (!pVM)
2181	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2182
2183	/*
2184	* Establish some stuff like the current IDTR and CPU mode,
2185	* and fix a default parameter.
2186	*/
2187	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2188	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
2189	uint16_t cbLimit;
2190	RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2191	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2192	unsigned cbEntry;
2193	switch (enmMode)
2194	{
2195	case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2196	case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2197	case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2198	default:
2199	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid CPU mode %d.\n", enmMode);
2200	}
2201
2202	bool fAll = pCmd->pszCmd[2] == 'a';
2203	DBGCVAR Var;
2204	if (!cArgs)
2205	{
2206	cArgs = 1;
2207	paArgs = &Var;
2208	Var.enmType = DBGCVAR_TYPE_NUMBER;
2209	Var.u.u64Number = 0;
2210	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2211	Var.u64Range = 256;
2212	}
2213
2214	/*
2215	* Process the arguments.
2216	*/
2217	for (unsigned i = 0; i < cArgs; i++)
2218	{
2219	/* check that what we got makes sense as we don't trust the parser yet. */
2220	if (paArgs[i].enmType != DBGCVAR_TYPE_NUMBER)
2221	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number type but %d.\n", i, paArgs[i].enmType);
2222	if (paArgs[i].u.u64Number < 256)
2223	{
2224	RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2225	unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2226	? paArgs[i].u64Range
2227	: 1;
2228	bool fSingle = cInts == 1;
2229	while ( cInts-- > 0
2230	&& iInt < 256)
2231	{
2232	/*
2233	* Try read it.
2234	*/
2235	union
2236	{
2237	RTFAR16 Real;
2238	X86DESC Prot;
2239	X86DESC64 Long;
2240	} u;
2241	if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2242	{
2243	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x not within the IDT\n", (unsigned)iInt);
2244	if (!fAll && !fSingle)
2245	return VINF_SUCCESS;
2246	}
2247	DBGCVAR AddrVar;
2248	AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2249	AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2250	AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2251	int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &u, cbEntry, &AddrVar, NULL);
2252	if (RT_FAILURE(rc))
2253	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2254
2255	/*
2256	* Display it.
2257	*/
2258	switch (enmMode)
2259	{
2260	case CPUMMODE_REAL:
2261	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2262	/** @todo resolve 16:16 IDTE to a symbol */
2263	break;
2264	case CPUMMODE_PROTECTED:
2265	if (fAll \|\| fSingle \|\| u.Prot.Gen.u1Present)
2266	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2267	break;
2268	case CPUMMODE_LONG:
2269	if (fAll \|\| fSingle \|\| u.Long.Gen.u1Present)
2270	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2271	break;
2272	default: break; /* to shut up gcc */
2273	}
2274	if (RT_FAILURE(rc))
2275	return rc;
2276
2277	/* next */
2278	iInt++;
2279	}
2280	}
2281	else
2282	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2283	}
2284
2285	NOREF(pResult);
2286	return VINF_SUCCESS;
2287	}
2288
2289
2290	/**
2291	* The 'da', 'dq', 'dd', 'dw' and 'db' commands.
2292	*
2293	* @returns VBox status.
2294	* @param pCmd Pointer to the command descriptor (as registered).
2295	* @param pCmdHlp Pointer to command helper functions.
2296	* @param pVM Pointer to the current VM (if any).
2297	* @param paArgs Pointer to (readonly) array of arguments.
2298	* @param cArgs Number of arguments in the array.
2299	*/
2300	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2301	{
2302	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2303
2304	/*
2305	* Validate input.
2306	*/
2307	if ( cArgs > 1
2308	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2309	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2310	if (!pVM)
2311	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2312
2313	/*
2314	* Figure out the element size.
2315	*/
2316	unsigned cbElement;
2317	bool fAscii = false;
2318	switch (pCmd->pszCmd[1])
2319	{
2320	default:
2321	case 'b': cbElement = 1; break;
2322	case 'w': cbElement = 2; break;
2323	case 'd': cbElement = 4; break;
2324	case 'q': cbElement = 8; break;
2325	case 'a':
2326	cbElement = 1;
2327	fAscii = true;
2328	break;
2329	case '\0':
2330	fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2331	cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2332	if (!cbElement)
2333	cbElement = 1;
2334	break;
2335	}
2336
2337	/*
2338	* Find address.
2339	*/
2340	if (!cArgs)
2341	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2342	else
2343	pDbgc->DumpPos = paArgs[0];
2344
2345	/*
2346	* Range.
2347	*/
2348	switch (pDbgc->DumpPos.enmRangeType)
2349	{
2350	case DBGCVAR_RANGE_NONE:
2351	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2352	pDbgc->DumpPos.u64Range = 0x60;
2353	break;
2354
2355	case DBGCVAR_RANGE_ELEMENTS:
2356	if (pDbgc->DumpPos.u64Range > 2048)
2357	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many elements requested. Max is 2048 elements.\n");
2358	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2359	pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2360	break;
2361
2362	case DBGCVAR_RANGE_BYTES:
2363	if (pDbgc->DumpPos.u64Range > 65536)
2364	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
2365	break;
2366
2367	default:
2368	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2369	}
2370
2371	pDbgc->pLastPos = &pDbgc->DumpPos;
2372
2373	/*
2374	* Do the dumping.
2375	*/
2376	pDbgc->cbDumpElement = cbElement \| (fAscii << 31);
2377	int cbLeft = (int)pDbgc->DumpPos.u64Range;
2378	uint8_t u8Prev = '\0';
2379	for (;;)
2380	{
2381	/*
2382	* Read memory.
2383	*/
2384	char achBuffer[16];
2385	size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2386	size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2387	int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2388	if (RT_FAILURE(rc))
2389	{
2390	if (u8Prev && u8Prev != '\n')
2391	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2392	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2393	}
2394
2395	/*
2396	* Display it.
2397	*/
2398	memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2399	if (!fAscii)
2400	{
2401	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:", &pDbgc->DumpPos);
2402	unsigned i;
2403	for (i = 0; i < cb; i += cbElement)
2404	{
2405	const char *pszSpace = " ";
2406	if (cbElement <= 2 && i == 8 && !fAscii)
2407	pszSpace = "-";
2408	switch (cbElement)
2409	{
2410	case 1: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%02x", pszSpace, (uint8_t )&achBuffer[i]); break;
2411	case 2: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%04x", pszSpace, (uint16_t )&achBuffer[i]); break;
2412	case 4: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%08x", pszSpace, (uint32_t )&achBuffer[i]); break;
2413	case 8: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%016llx", pszSpace, (uint64_t )&achBuffer[i]); break;
2414	}
2415	}
2416
2417	/* chars column */
2418	if (pDbgc->cbDumpElement == 1)
2419	{
2420	while (i++ < sizeof(achBuffer))
2421	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2422	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2423	for (i = 0; i < cb; i += cbElement)
2424	{
2425	uint8_t u8 = (uint8_t )&achBuffer[i];
2426	if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2427	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2428	else
2429	pCmdHlp->pfnPrintf(pCmdHlp, NULL, ".");
2430	}
2431	}
2432	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2433	}
2434	else
2435	{
2436	/*
2437	* We print up to the first zero and stop there.
2438	* Only printables + '\t' and '\n' are printed.
2439	*/
2440	if (!u8Prev)
2441	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DumpPos);
2442	uint8_t u8 = '\0';
2443	unsigned i;
2444	for (i = 0; i < cb; i++)
2445	{
2446	u8Prev = u8;
2447	u8 = (uint8_t )&achBuffer[i];
2448	if ( u8 < 127
2449	&& ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2450	\|\| u8 == '\t'
2451	\|\| u8 == '\n'))
2452	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2453	else if (!u8)
2454	break;
2455	else
2456	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\\x%x", u8);
2457	}
2458	if (u8 == '\0')
2459	cb = cbLeft = i + 1;
2460	if (cbLeft - cb <= 0 && u8Prev != '\n')
2461	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2462	}
2463
2464	/*
2465	* Advance
2466	*/
2467	cbLeft -= (int)cb;
2468	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2469	if (RT_FAILURE(rc))
2470	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2471	if (cbLeft <= 0)
2472	break;
2473	}
2474
2475	NOREF(pCmd); NOREF(pResult);
2476	return VINF_SUCCESS;
2477	}
2478
2479
2480	/**
2481	* Best guess at which paging mode currently applies to the guest
2482	* paging structures.
2483	*
2484	* This have to come up with a decent answer even when the guest
2485	* is in non-paged protected mode or real mode.
2486	*
2487	* @returns cr3.
2488	* @param pDbgc The DBGC instance.
2489	* @param pfPAE Where to store the page address extension indicator.
2490	* @param pfLME Where to store the long mode enabled indicator.
2491	* @param pfPSE Where to store the page size extension indicator.
2492	* @param pfPGE Where to store the page global enabled indicator.
2493	* @param pfNXE Where to store the no-execution enabled indicator.
2494	*/
2495	static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2496	{
2497	PVMCPU pVCpu = VMMGetCpuById(pDbgc->pVM, pDbgc->idCpu);
2498	RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2499	*pfPSE = !!(cr4 & X86_CR4_PSE);
2500	*pfPGE = !!(cr4 & X86_CR4_PGE);
2501	if (cr4 & X86_CR4_PAE)
2502	{
2503	*pfPSE = true;
2504	*pfPAE = true;
2505	}
2506	else
2507	*pfPAE = false;
2508
2509	*pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2510	pfNXE = false; / GUEST64 GUESTNX */
2511	return CPUMGetGuestCR3(pVCpu);
2512	}
2513
2514
2515	/**
2516	* Determine the shadow paging mode.
2517	*
2518	* @returns cr3.
2519	* @param pDbgc The DBGC instance.
2520	* @param pfPAE Where to store the page address extension indicator.
2521	* @param pfLME Where to store the long mode enabled indicator.
2522	* @param pfPSE Where to store the page size extension indicator.
2523	* @param pfPGE Where to store the page global enabled indicator.
2524	* @param pfNXE Where to store the no-execution enabled indicator.
2525	*/
2526	static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2527	{
2528	PVMCPU pVCpu = VMMGetCpuById(pDbgc->pVM, pDbgc->idCpu);
2529
2530	*pfPSE = true;
2531	*pfPGE = false;
2532	switch (PGMGetShadowMode(pVCpu))
2533	{
2534	default:
2535	case PGMMODE_32_BIT:
2536	pfPAE = pfLME = *pfNXE = false;
2537	break;
2538	case PGMMODE_PAE:
2539	pfLME = pfNXE = false;
2540	*pfPAE = true;
2541	break;
2542	case PGMMODE_PAE_NX:
2543	*pfLME = false;
2544	pfPAE = pfNXE = true;
2545	break;
2546	case PGMMODE_AMD64:
2547	*pfNXE = false;
2548	pfPAE = pfLME = true;
2549	break;
2550	case PGMMODE_AMD64_NX:
2551	pfPAE = pfLME = *pfNXE = true;
2552	break;
2553	}
2554	return PGMGetHyperCR3(pVCpu);
2555	}
2556
2557
2558	/**
2559	* The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh' commands.
2560	*
2561	* @returns VBox status.
2562	* @param pCmd Pointer to the command descriptor (as registered).
2563	* @param pCmdHlp Pointer to command helper functions.
2564	* @param pVM Pointer to the current VM (if any).
2565	* @param paArgs Pointer to (readonly) array of arguments.
2566	* @param cArgs Number of arguments in the array.
2567	*/
2568	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2569	{
2570	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2571
2572	/*
2573	* Validate input.
2574	*/
2575	if ( cArgs > 1
2576	\|\| (cArgs == 1 && pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2577	\|\| (cArgs == 1 && pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2578	)
2579	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2580	if (!pVM)
2581	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2582
2583	/*
2584	* Guest or shadow page directories? Get the paging parameters.
2585	*/
2586	bool fGuest = pCmd->pszCmd[3] != 'h';
2587	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2588	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2589	? pDbgc->fRegCtxGuest
2590	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2591
2592	bool fPAE, fLME, fPSE, fPGE, fNXE;
2593	uint64_t cr3 = fGuest
2594	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2595	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2596	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2597
2598	/*
2599	* Setup default argument if none was specified.
2600	* Fix address / index confusion.
2601	*/
2602	DBGCVAR VarDefault;
2603	if (!cArgs)
2604	{
2605	if (pCmd->pszCmd[3] == 'a')
2606	{
2607	if (fLME \|\| fPAE)
2608	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");
2609	if (fGuest)
2610	DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2611	else
2612	DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2613	}
2614	else
2615	DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2616	paArgs = &VarDefault;
2617	cArgs = 1;
2618	}
2619	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2620	{
2621	Assert(pCmd->pszCmd[3] != 'a');
2622	VarDefault = paArgs[0];
2623	if (VarDefault.u.u64Number <= 1024)
2624	{
2625	if (fPAE)
2626	return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2627	if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2628	return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2629	VarDefault.u.u64Number <<= X86_PD_SHIFT;
2630	}
2631	VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2632	paArgs = &VarDefault;
2633	}
2634
2635	/*
2636	* Locate the PDE to start displaying at.
2637	*
2638	* The 'dpda' command takes the address of a PDE, while the others are guest
2639	* virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2640	* while the others require us to do all the tedious walking thru the paging
2641	* hierarchy to find the intended PDE.
2642	*/
2643	unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2644	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2645	DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2646	unsigned cEntries; /* The number of entries to display. */
2647	unsigned cEntriesMax; /* The max number of entries to display. */
2648	int rc;
2649	if (pCmd->pszCmd[3] == 'a')
2650	{
2651	VarPDEAddr = paArgs[0];
2652	switch (VarPDEAddr.enmRangeType)
2653	{
2654	case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2655	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2656	default: cEntries = 10; break;
2657	}
2658	cEntriesMax = PAGE_SIZE / cbEntry;
2659	}
2660	else
2661	{
2662	/*
2663	* Determine the range.
2664	*/
2665	switch (paArgs[0].enmRangeType)
2666	{
2667	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2668	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2669	default: cEntries = 10; break;
2670	}
2671
2672	/*
2673	* Normalize the input address, it must be a flat GC address.
2674	*/
2675	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2676	if (RT_FAILURE(rc))
2677	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2678	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2679	{
2680	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2681	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2682	}
2683	if (fPAE)
2684	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2685	else
2686	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2687
2688	/*
2689	* Do the paging walk until we get to the page directory.
2690	*/
2691	DBGCVAR VarCur;
2692	if (fGuest)
2693	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2694	else
2695	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2696	if (fLME)
2697	{
2698	/* Page Map Level 4 Lookup. */
2699	/* Check if it's a valid address first? */
2700	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2701	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2702	X86PML4E Pml4e;
2703	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2704	if (RT_FAILURE(rc))
2705	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2706	if (!Pml4e.n.u1Present)
2707	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2708
2709	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2710	Assert(fPAE);
2711	}
2712	if (fPAE)
2713	{
2714	/* Page directory pointer table. */
2715	X86PDPE Pdpe;
2716	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2717	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2718	if (RT_FAILURE(rc))
2719	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2720	if (!Pdpe.n.u1Present)
2721	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2722
2723	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2724	VarPDEAddr = VarCur;
2725	VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2726	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2727	}
2728	else
2729	{
2730	/* 32-bit legacy - CR3 == page directory. */
2731	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2732	VarPDEAddr = VarCur;
2733	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2734	}
2735	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2736	iEntry /= cbEntry;
2737	}
2738
2739	/* adjust cEntries */
2740	cEntries = RT_MAX(1, cEntries);
2741	cEntries = RT_MIN(cEntries, cEntriesMax);
2742
2743	/*
2744	* The display loop.
2745	*/
2746	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2747	&VarPDEAddr, iEntry);
2748	do
2749	{
2750	/*
2751	* Read.
2752	*/
2753	X86PDEPAE Pde;
2754	Pde.u = 0;
2755	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, cbEntry, &VarPDEAddr, NULL);
2756	if (RT_FAILURE(rc))
2757	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2758
2759	/*
2760	* Display.
2761	*/
2762	if (iEntry != ~0U)
2763	{
2764	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2765	iEntry++;
2766	}
2767	if (fPSE && Pde.b.u1Size)
2768	DBGCCmdHlpPrintf(pCmdHlp,
2769	fPAE
2770	? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2771	: "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2772	Pde.u,
2773	Pde.u & X86_PDE_PAE_PG_MASK,
2774	Pde.b.u1Present ? "p " : "np",
2775	Pde.b.u1Write ? "w" : "r",
2776	Pde.b.u1User ? "u" : "s",
2777	Pde.b.u1Accessed ? "a " : "na",
2778	Pde.b.u1Dirty ? "d " : "nd",
2779	Pde.b.u3Available,
2780	Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2781	Pde.b.u1WriteThru ? "pwt" : " ",
2782	Pde.b.u1CacheDisable ? "pcd" : " ",
2783	Pde.b.u1PAT ? "pat" : "",
2784	Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2785	else
2786	DBGCCmdHlpPrintf(pCmdHlp,
2787	fPAE
2788	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2789	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2790	Pde.u,
2791	Pde.u & X86_PDE_PAE_PG_MASK,
2792	Pde.n.u1Present ? "p " : "np",
2793	Pde.n.u1Write ? "w" : "r",
2794	Pde.n.u1User ? "u" : "s",
2795	Pde.n.u1Accessed ? "a " : "na",
2796	Pde.u & RT_BIT(6) ? "6 " : " ",
2797	Pde.n.u3Available,
2798	Pde.u & RT_BIT(8) ? "8" : " ",
2799	Pde.n.u1WriteThru ? "pwt" : " ",
2800	Pde.n.u1CacheDisable ? "pcd" : " ",
2801	Pde.u & RT_BIT(7) ? "7" : "",
2802	Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2803	if (Pde.u & UINT64_C(0x7fff000000000000))
2804	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2805	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2806	if (RT_FAILURE(rc))
2807	return rc;
2808
2809	/*
2810	* Advance.
2811	*/
2812	VarPDEAddr.u.u64Number += cbEntry;
2813	if (iEntry != ~0U)
2814	VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2815	} while (cEntries-- > 0);
2816
2817	NOREF(pResult);
2818	return VINF_SUCCESS;
2819	}
2820
2821
2822	/**
2823	* The 'dpdb' command.
2824	*
2825	* @returns VBox status.
2826	* @param pCmd Pointer to the command descriptor (as registered).
2827	* @param pCmdHlp Pointer to command helper functions.
2828	* @param pVM Pointer to the current VM (if any).
2829	* @param paArgs Pointer to (readonly) array of arguments.
2830	* @param cArgs Number of arguments in the array.
2831	*/
2832	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2833	{
2834	if (!pVM)
2835	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2836	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2837	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2838	if (RT_FAILURE(rc1))
2839	return rc1;
2840	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
2841	return rc2;
2842	}
2843
2844
2845	/**
2846	* The 'dph*' commands and main part of 'm'.
2847	*
2848	* @returns VBox status.
2849	* @param pCmd Pointer to the command descriptor (as registered).
2850	* @param pCmdHlp Pointer to command helper functions.
2851	* @param pVM Pointer to the current VM (if any).
2852	* @param paArgs Pointer to (readonly) array of arguments.
2853	* @param cArgs Number of arguments in the array.
2854	*/
2855	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2856	{
2857	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2858	if (!pVM)
2859	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
2860
2861	/*
2862	* Figure the context and base flags.
2863	*/
2864	uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO \| DBGFPGDMP_FLAGS_PRINT_CR3;
2865	if (pCmd->pszCmd[0] == 'm')
2866	fFlags \|= DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW;
2867	else if (pCmd->pszCmd[3] == '\0')
2868	fFlags \|= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2869	else if (pCmd->pszCmd[3] == 'g')
2870	fFlags \|= DBGFPGDMP_FLAGS_GUEST;
2871	else if (pCmd->pszCmd[3] == 'h')
2872	fFlags \|= DBGFPGDMP_FLAGS_SHADOW;
2873	else
2874	AssertFailed();
2875
2876	if (pDbgc->cPagingHierarchyDumps == 0)
2877	fFlags \|= DBGFPGDMP_FLAGS_HEADER;
2878	pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2879
2880	/*
2881	* Get the range.
2882	*/
2883	PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2884	RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2885	int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2886	if (RT_FAILURE(rc))
2887	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2888
2889	uint64_t cbRange;
2890	rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2891	if (RT_FAILURE(rc))
2892	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2893
2894	RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2895	if (cbRange >= GCPtrLast)
2896	GCPtrLast = RTGCPTR_MAX;
2897	else if (!cbRange)
2898	GCPtrLast = GCPtrFirst;
2899	else
2900	GCPtrLast = GCPtrFirst + cbRange - 1;
2901
2902	/*
2903	* Do we have a CR3?
2904	*/
2905	uint64_t cr3 = 0;
2906	if (cArgs > 1)
2907	{
2908	if ((fFlags & (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW))
2909	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2910	if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2911	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2912	cr3 = paArgs[1].u.u64Number;
2913	}
2914	else
2915	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_CR3;
2916
2917	/*
2918	* Do we have a mode?
2919	*/
2920	if (cArgs > 2)
2921	{
2922	if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2923	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2924	static const struct MODETOFLAGS
2925	{
2926	const char *pszName;
2927	uint32_t fFlags;
2928	} s_aModeToFlags[] =
2929	{
2930	{ "ept", DBGFPGDMP_FLAGS_EPT },
2931	{ "legacy", 0 },
2932	{ "legacy-np", DBGFPGDMP_FLAGS_NP },
2933	{ "pse", DBGFPGDMP_FLAGS_PSE },
2934	{ "pse-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_NP },
2935	{ "pae", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE },
2936	{ "pae-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NP },
2937	{ "pae-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE },
2938	{ "pae-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP },
2939	{ "long", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME },
2940	{ "long-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NP },
2941	{ "long-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE },
2942	{ "long-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP }
2943	};
2944	int i = RT_ELEMENTS(s_aModeToFlags);
2945	while (i-- > 0)
2946	if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2947	{
2948	fFlags \|= s_aModeToFlags[i].fFlags;
2949	break;
2950	}
2951	if (i < 0)
2952	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2953	}
2954	else
2955	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_MODE;
2956
2957	/*
2958	* Call the worker.
2959	*/
2960	rc = DBGFR3PagingDumpEx(pVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /cMaxDepth/,
2961	DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2962	if (RT_FAILURE(rc))
2963	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2964	return VINF_SUCCESS;
2965	}
2966
2967
2968
2969	/**
2970	* The 'dpg*' commands.
2971	*
2972	* @returns VBox status.
2973	* @param pCmd Pointer to the command descriptor (as registered).
2974	* @param pCmdHlp Pointer to command helper functions.
2975	* @param pVM Pointer to the current VM (if any).
2976	* @param paArgs Pointer to (readonly) array of arguments.
2977	* @param cArgs Number of arguments in the array.
2978	*/
2979	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2980	{
2981	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2982
2983	/*
2984	* Validate input.
2985	*/
2986	if ( cArgs != 1
2987	\|\| (pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2988	\|\| (pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2989	)
2990	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2991	if (!pVM)
2992	return DBGCCmdHlpPrintf(pCmdHlp, "error: No VM.\n");
2993
2994	/*
2995	* Guest or shadow page tables? Get the paging parameters.
2996	*/
2997	bool fGuest = pCmd->pszCmd[3] != 'h';
2998	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2999	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
3000	? pDbgc->fRegCtxGuest
3001	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
3002
3003	bool fPAE, fLME, fPSE, fPGE, fNXE;
3004	uint64_t cr3 = fGuest
3005	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
3006	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
3007	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
3008
3009	/*
3010	* Locate the PTE to start displaying at.
3011	*
3012	* The 'dpta' command takes the address of a PTE, while the others are guest
3013	* virtual address which PTEs should be displayed. So, 'pdta' is rather simple
3014	* while the others require us to do all the tedious walking thru the paging
3015	* hierarchy to find the intended PTE.
3016	*/
3017	unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
3018	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
3019	DBGCVAR VarPTEAddr; /* The address of the current PTE. */
3020	unsigned cEntries; /* The number of entries to display. */
3021	unsigned cEntriesMax; /* The max number of entries to display. */
3022	int rc;
3023	if (pCmd->pszCmd[3] == 'a')
3024	{
3025	VarPTEAddr = paArgs[0];
3026	switch (VarPTEAddr.enmRangeType)
3027	{
3028	case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
3029	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
3030	default: cEntries = 10; break;
3031	}
3032	cEntriesMax = PAGE_SIZE / cbEntry;
3033	}
3034	else
3035	{
3036	/*
3037	* Determine the range.
3038	*/
3039	switch (paArgs[0].enmRangeType)
3040	{
3041	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
3042	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
3043	default: cEntries = 10; break;
3044	}
3045
3046	/*
3047	* Normalize the input address, it must be a flat GC address.
3048	*/
3049	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
3050	if (RT_FAILURE(rc))
3051	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3052	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
3053	{
3054	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
3055	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
3056	}
3057	VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
3058
3059	/*
3060	* Do the paging walk until we get to the page table.
3061	*/
3062	DBGCVAR VarCur;
3063	if (fGuest)
3064	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
3065	else
3066	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
3067	if (fLME)
3068	{
3069	/* Page Map Level 4 Lookup. */
3070	/* Check if it's a valid address first? */
3071	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
3072	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
3073	X86PML4E Pml4e;
3074	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
3075	if (RT_FAILURE(rc))
3076	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
3077	if (!Pml4e.n.u1Present)
3078	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
3079
3080	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
3081	Assert(fPAE);
3082	}
3083	if (fPAE)
3084	{
3085	/* Page directory pointer table. */
3086	X86PDPE Pdpe;
3087	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
3088	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
3089	if (RT_FAILURE(rc))
3090	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
3091	if (!Pdpe.n.u1Present)
3092	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
3093
3094	VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
3095
3096	/* Page directory (PAE). */
3097	X86PDEPAE Pde;
3098	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
3099	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
3100	if (RT_FAILURE(rc))
3101	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3102	if (!Pde.n.u1Present)
3103	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3104	if (fPSE && Pde.n.u1Size)
3105	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3106
3107	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
3108	VarPTEAddr = VarCur;
3109	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
3110	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
3111	}
3112	else
3113	{
3114	/* Page directory (legacy). */
3115	X86PDE Pde;
3116	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
3117	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
3118	if (RT_FAILURE(rc))
3119	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3120	if (!Pde.n.u1Present)
3121	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3122	if (fPSE && Pde.n.u1Size)
3123	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3124
3125	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
3126	VarPTEAddr = VarCur;
3127	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
3128	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
3129	}
3130	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
3131	iEntry /= cbEntry;
3132	}
3133
3134	/* adjust cEntries */
3135	cEntries = RT_MAX(1, cEntries);
3136	cEntries = RT_MIN(cEntries, cEntriesMax);
3137
3138	/*
3139	* The display loop.
3140	*/
3141	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3142	&VarPTEAddr, &VarGCPtr, iEntry);
3143	do
3144	{
3145	/*
3146	* Read.
3147	*/
3148	X86PTEPAE Pte;
3149	Pte.u = 0;
3150	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pte, cbEntry, &VarPTEAddr, NULL);
3151	if (RT_FAILURE(rc))
3152	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3153
3154	/*
3155	* Display.
3156	*/
3157	if (iEntry != ~0U)
3158	{
3159	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3160	iEntry++;
3161	}
3162	DBGCCmdHlpPrintf(pCmdHlp,
3163	fPAE
3164	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3165	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3166	Pte.u,
3167	Pte.u & X86_PTE_PAE_PG_MASK,
3168	Pte.n.u1Present ? "p " : "np",
3169	Pte.n.u1Write ? "w" : "r",
3170	Pte.n.u1User ? "u" : "s",
3171	Pte.n.u1Accessed ? "a " : "na",
3172	Pte.n.u1Dirty ? "d " : "nd",
3173	Pte.n.u3Available,
3174	Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3175	Pte.n.u1WriteThru ? "pwt" : " ",
3176	Pte.n.u1CacheDisable ? "pcd" : " ",
3177	Pte.n.u1PAT ? "pat" : " ",
3178	Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3179	);
3180	if (Pte.u & UINT64_C(0x7fff000000000000))
3181	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3182	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3183	if (RT_FAILURE(rc))
3184	return rc;
3185
3186	/*
3187	* Advance.
3188	*/
3189	VarPTEAddr.u.u64Number += cbEntry;
3190	if (iEntry != ~0U)
3191	VarGCPtr.u.GCFlat += PAGE_SIZE;
3192	} while (cEntries-- > 0);
3193
3194	NOREF(pResult);
3195	return VINF_SUCCESS;
3196	}
3197
3198
3199	/**
3200	* The 'dptb' command.
3201	*
3202	* @returns VBox status.
3203	* @param pCmd Pointer to the command descriptor (as registered).
3204	* @param pCmdHlp Pointer to command helper functions.
3205	* @param pVM Pointer to the current VM (if any).
3206	* @param paArgs Pointer to (readonly) array of arguments.
3207	* @param cArgs Number of arguments in the array.
3208	*/
3209	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3210	{
3211	if (!pVM)
3212	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
3213	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3214	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3215	if (RT_FAILURE(rc1))
3216	return rc1;
3217	NOREF(pCmd); NOREF(cArgs); NOREF(pResult);
3218	return rc2;
3219	}
3220
3221
3222	/**
3223	* The 'dt' command.
3224	*
3225	* @returns VBox status.
3226	* @param pCmd Pointer to the command descriptor (as registered).
3227	* @param pCmdHlp Pointer to command helper functions.
3228	* @param pVM Pointer to the current VM (if any).
3229	* @param paArgs Pointer to (readonly) array of arguments.
3230	* @param cArgs Number of arguments in the array.
3231	*/
3232	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
3233	{
3234	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3235	int rc;
3236
3237	if (!pVM)
3238	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
3239	if ( cArgs > 1
3240	\|\| (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_STRING)
3241	\|\| (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL))
3242	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet...\n");
3243
3244	/*
3245	* Check if the command indicates the type.
3246	*/
3247	enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3248	if (!strcmp(pCmd->pszCmd, "dt16"))
3249	enmTssType = kTss16;
3250	else if (!strcmp(pCmd->pszCmd, "dt32"))
3251	enmTssType = kTss32;
3252	else if (!strcmp(pCmd->pszCmd, "dt64"))
3253	enmTssType = kTss64;
3254
3255	/*
3256	* We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3257	*/
3258	uint32_t SelTss = UINT32_MAX;
3259	DBGCVAR VarTssAddr;
3260	if (cArgs == 0)
3261	{
3262	/** @todo consider querying the hidden bits instead (missing API). */
3263	uint16_t SelTR;
3264	rc = DBGFR3RegCpuQueryU16(pVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3265	if (RT_FAILURE(rc))
3266	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3267	DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3268	SelTss = SelTR;
3269	}
3270	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3271	{
3272	if (paArgs[0].u.u64Number < 0xffff)
3273	DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3274	else
3275	{
3276	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3277	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3278	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3279	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3280	{
3281	VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3282	VarTssAddr.u64Range = paArgs[0].u64Range;
3283	}
3284	}
3285	}
3286	else
3287	VarTssAddr = paArgs[0];
3288
3289	/*
3290	* Deal with TSS:ign by means of the GDT.
3291	*/
3292	if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3293	{
3294	SelTss = VarTssAddr.u.GCFar.sel;
3295	DBGFSELINFO SelInfo;
3296	rc = DBGFR3SelQueryInfo(pVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3297	if (RT_FAILURE(rc))
3298	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3299	pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3300
3301	if (SelInfo.u.Raw.Gen.u1DescType)
3302	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3303
3304	switch (SelInfo.u.Raw.Gen.u4Type)
3305	{
3306	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3307	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3308	if (enmTssType == kTssToBeDetermined)
3309	enmTssType = kTss16;
3310	break;
3311
3312	case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3313	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3314	if (enmTssType == kTssToBeDetermined)
3315	enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3316	break;
3317
3318	default:
3319	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3320	VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3321	}
3322
3323	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3324	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3325	}
3326
3327	/*
3328	* Determine the TSS type if none is currently given.
3329	*/
3330	if (enmTssType == kTssToBeDetermined)
3331	{
3332	if ( VarTssAddr.u64Range > 0
3333	&& VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3334	enmTssType = kTss16;
3335	else
3336	{
3337	uint64_t uEfer;
3338	rc = DBGFR3RegCpuQueryU64(pVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3339	if ( RT_FAILURE(rc)
3340	\|\| !(uEfer & MSR_K6_EFER_LMA) )
3341	enmTssType = kTss32;
3342	else
3343	enmTssType = kTss64;
3344	}
3345	}
3346
3347	/*
3348	* Figure the min/max sizes.
3349	* ASSUMES max TSS size is 64 KB.
3350	*/
3351	uint32_t cbTssMin;
3352	uint32_t cbTssMax;
3353	switch (enmTssType)
3354	{
3355	case kTss16:
3356	cbTssMin = cbTssMax = sizeof(X86TSS16);
3357	break;
3358	case kTss32:
3359	cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3360	cbTssMax = _64K;
3361	break;
3362	case kTss64:
3363	cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3364	cbTssMax = _64K;
3365	break;
3366	default:
3367	AssertFailedReturn(VERR_INTERNAL_ERROR);
3368	}
3369	uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3370	if (cbTss == 0)
3371	cbTss = cbTssMin;
3372	else if (cbTss < cbTssMin)
3373	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3374	cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3375	else if (cbTss > cbTssMax)
3376	cbTss = cbTssMax;
3377	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3378
3379	/*
3380	* Read the TSS into a temporary buffer.
3381	*/
3382	uint8_t abBuf[_64K];
3383	size_t cbTssRead;
3384	rc = DBGCCmdHlpMemRead(pCmdHlp, pVM, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3385	if (RT_FAILURE(rc))
3386	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3387	if (cbTssRead < cbTssMin)
3388	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3389	cbTssRead, cbTssMin);
3390	if (cbTssRead < cbTss)
3391	memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3392
3393
3394	/*
3395	* Format the TSS.
3396	*/
3397	uint16_t offIoBitmap;
3398	switch (enmTssType)
3399	{
3400	case kTss16:
3401	{
3402	PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3403	if (SelTss != UINT32_MAX)
3404	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3405	else
3406	DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3407	DBGCCmdHlpPrintf(pCmdHlp,
3408	"ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3409	"ip=%04x sp=%04x bp=%04x\n"
3410	"cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3411	"ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3412	"prev=%04x ldtr=%04x\n"
3413	,
3414	pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3415	pTss->ip, pTss->sp, pTss->bp,
3416	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3417	pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3418	pTss->selPrev, pTss->selLdt);
3419	if (pTss->cs != 0)
3420	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3421	offIoBitmap = 0;
3422	break;
3423	}
3424
3425	case kTss32:
3426	{
3427	PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3428	if (SelTss != UINT32_MAX)
3429	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3430	else
3431	DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3432	DBGCCmdHlpPrintf(pCmdHlp,
3433	"eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3434	"eip=%08x esp=%08x ebp=%08x\n"
3435	"cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3436	"ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3437	"prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3438	,
3439	pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3440	pTss->eip, pTss->esp, pTss->ebp,
3441	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3442	pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3443	pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3444	if (pTss->cs != 0)
3445	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3446	offIoBitmap = pTss->offIoBitmap;
3447	break;
3448	}
3449
3450	case kTss64:
3451	{
3452	PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3453	if (SelTss != UINT32_MAX)
3454	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3455	else
3456	DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3457	DBGCCmdHlpPrintf(pCmdHlp,
3458	"rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3459	"ist1=%016RX16 ist2=%016RX16\n"
3460	"ist3=%016RX16 ist4=%016RX16\n"
3461	"ist5=%016RX16 ist6=%016RX16\n"
3462	"ist7=%016RX16 iomap=%04x\n"
3463	,
3464	pTss->rsp0, pTss->rsp1, pTss->rsp2,
3465	pTss->ist1, pTss->ist2,
3466	pTss->ist3, pTss->ist4,
3467	pTss->ist5, pTss->ist6,
3468	pTss->ist7, pTss->offIoBitmap);
3469	offIoBitmap = pTss->offIoBitmap;
3470	break;
3471	}
3472
3473	default:
3474	AssertFailedReturn(VERR_INTERNAL_ERROR);
3475	}
3476
3477	/*
3478	* Dump the interrupt redirection bitmap.
3479	*/
3480	if (enmTssType != kTss16)
3481	{
3482	if ( offIoBitmap > cbTssMin
3483	&& offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3484	{
3485	if (offIoBitmap - cbTssMin >= 32)
3486	{
3487	DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3488	uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3489	uint32_t iStart = 0;
3490	bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3491	for (uint32_t i = 0; i < 256; i++)
3492	{
3493	bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3494	if (fThis != fPrev)
3495	{
3496	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3497	fPrev = fThis;
3498	iStart = i;
3499	}
3500	}
3501	if (iStart != 255)
3502	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3503	}
3504	else
3505	DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3506	offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3507	}
3508	else if (offIoBitmap > 0)
3509	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3510	else
3511	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3512	}
3513
3514	/*
3515	* Dump the I/O bitmap if present.
3516	*/
3517	if (enmTssType != kTss16)
3518	{
3519	if (offIoBitmap < cbTss)
3520	{
3521	uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3522	DBGCVAR VarAddr;
3523	DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3524	DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3525
3526	uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3527	uint32_t iStart = 0;
3528	bool fPrev = ASMBitTest(pbIoBitmap, 0);
3529	uint32_t cLine = 0;
3530	for (uint32_t i = 1; i < cPorts; i++)
3531	{
3532	bool fThis = ASMBitTest(pbIoBitmap, i);
3533	if (fThis != fPrev)
3534	{
3535	cLine++;
3536	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3537	fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3538	fPrev = fThis;
3539	iStart = i;
3540	}
3541	}
3542	if (iStart != _64K-1)
3543	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3544	}
3545	else if (offIoBitmap > 0)
3546	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3547	else
3548	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3549	}
3550
3551	return VINF_SUCCESS;
3552	}
3553
3554
3555	/**
3556	* The 'm' command.
3557	*
3558	* @returns VBox status.
3559	* @param pCmd Pointer to the command descriptor (as registered).
3560	* @param pCmdHlp Pointer to command helper functions.
3561	* @param pVM Pointer to the current VM (if any).
3562	* @param paArgs Pointer to (readonly) array of arguments.
3563	* @param cArgs Number of arguments in the array.
3564	*/
3565	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3566	{
3567	DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3568	if (!pVM)
3569	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
3570	return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
3571	}
3572
3573
3574	/**
3575	* Converts one or more variables into a byte buffer for a
3576	* given unit size.
3577	*
3578	* @returns VBox status codes:
3579	* @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3580	* @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3581	* @retval VINF_SUCCESS on success.
3582	*
3583	* @param pvBuf The buffer to convert into.
3584	* @param pcbBuf The buffer size on input. The size of the result on output.
3585	* @param cbUnit The unit size to apply when converting.
3586	* The high bit is used to indicate unicode string.
3587	* @param paVars The array of variables to convert.
3588	* @param cVars The number of variables.
3589	*/
3590	int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void pvBuf, uint32_t pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3591	{
3592	union
3593	{
3594	uint8_t *pu8;
3595	uint16_t *pu16;
3596	uint32_t *pu32;
3597	uint64_t *pu64;
3598	} u, uEnd;
3599	u.pu8 = (uint8_t *)pvBuf;
3600	uEnd.pu8 = u.pu8 + *pcbBuf;
3601
3602	unsigned i;
3603	for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3604	{
3605	switch (paVars[i].enmType)
3606	{
3607	case DBGCVAR_TYPE_GC_FAR:
3608	case DBGCVAR_TYPE_HC_FAR:
3609	case DBGCVAR_TYPE_GC_FLAT:
3610	case DBGCVAR_TYPE_GC_PHYS:
3611	case DBGCVAR_TYPE_HC_FLAT:
3612	case DBGCVAR_TYPE_HC_PHYS:
3613	case DBGCVAR_TYPE_NUMBER:
3614	{
3615	uint64_t u64 = paVars[i].u.u64Number;
3616	switch (cbUnit & 0x1f)
3617	{
3618	case 1:
3619	do
3620	{
3621	*u.pu8++ = u64;
3622	u64 >>= 8;
3623	} while (u64);
3624	break;
3625	case 2:
3626	do
3627	{
3628	*u.pu16++ = u64;
3629	u64 >>= 16;
3630	} while (u64);
3631	break;
3632	case 4:
3633	*u.pu32++ = u64;
3634	u64 >>= 32;
3635	if (u64)
3636	*u.pu32++ = u64;
3637	break;
3638	case 8:
3639	*u.pu64++ = u64;
3640	break;
3641	}
3642	break;
3643	}
3644
3645	case DBGCVAR_TYPE_STRING:
3646	case DBGCVAR_TYPE_SYMBOL:
3647	{
3648	const char *psz = paVars[i].u.pszString;
3649	size_t cbString = strlen(psz);
3650	if (cbUnit & RT_BIT_32(31))
3651	{
3652	/* Explode char to unit. */
3653	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3654	{
3655	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3656	return VERR_TOO_MUCH_DATA;
3657	}
3658	while (*psz)
3659	{
3660	switch (cbUnit & 0x1f)
3661	{
3662	case 1: u.pu8++ = psz; break;
3663	case 2: u.pu16++ = psz; break;
3664	case 4: u.pu32++ = psz; break;
3665	case 8: u.pu64++ = psz; break;
3666	}
3667	psz++;
3668	}
3669	}
3670	else
3671	{
3672	/* Raw copy with zero padding if the size isn't aligned. */
3673	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3674	{
3675	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3676	return VERR_TOO_MUCH_DATA;
3677	}
3678
3679	size_t cbCopy = cbString & ~(cbUnit - 1);
3680	memcpy(u.pu8, psz, cbCopy);
3681	u.pu8 += cbCopy;
3682	psz += cbCopy;
3683
3684	size_t cbReminder = cbString & (cbUnit - 1);
3685	if (cbReminder)
3686	{
3687	memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3688	memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3689	u.pu8 += cbUnit;
3690	}
3691	}
3692	break;
3693	}
3694
3695	default:
3696	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3697	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3698	"i=%d enmType=%d\n", i, paVars[i].enmType);
3699	return VERR_INTERNAL_ERROR;
3700	}
3701	}
3702	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3703	if (i != cVars)
3704	{
3705	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3706	return VERR_TOO_MUCH_DATA;
3707	}
3708	return VINF_SUCCESS;
3709	}
3710
3711
3712	/**
3713	* The 'eb', 'ew', 'ed' and 'eq' commands.
3714	*
3715	* @returns VBox status.
3716	* @param pCmd Pointer to the command descriptor (as registered).
3717	* @param pCmdHlp Pointer to command helper functions.
3718	* @param pVM Pointer to the current VM (if any).
3719	* @param paArgs Pointer to (readonly) array of arguments.
3720	* @param cArgs Number of arguments in the array.
3721	*/
3722	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3723	{
3724	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3725	unsigned iArg;
3726
3727	/*
3728	* Validate input.
3729	*/
3730	if ( cArgs < 2
3731	\|\| !DBGCVAR_ISPOINTER(paArgs[0].enmType))
3732	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet... It might help to use the '%%' operator.\n");
3733	for (iArg = 1; iArg < cArgs; iArg++)
3734	if (paArgs[iArg].enmType != DBGCVAR_TYPE_NUMBER)
3735	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet: Arg #%u is not a number.\n", iArg);
3736	if (!pVM)
3737	return DBGCCmdHlpFail(pCmdHlp, pCmd, "error: No VM.\n");
3738
3739	/*
3740	* Figure out the element size.
3741	*/
3742	unsigned cbElement;
3743	switch (pCmd->pszCmd[1])
3744	{
3745	default:
3746	case 'b': cbElement = 1; break;
3747	case 'w': cbElement = 2; break;
3748	case 'd': cbElement = 4; break;
3749	case 'q': cbElement = 8; break;
3750	}
3751
3752	/*
3753	* Do setting.
3754	*/
3755	DBGCVAR Addr = paArgs[0];
3756	for (iArg = 1;;)
3757	{
3758	size_t cbWritten;
3759	int rc = pCmdHlp->pfnMemWrite(pCmdHlp, pVM, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3760	if (RT_FAILURE(rc))
3761	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3762	if (cbWritten != cbElement)
3763	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3764
3765	/* advance. */
3766	iArg++;
3767	if (iArg >= cArgs)
3768	break;
3769	rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3770	if (RT_FAILURE(rc))
3771	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3772	}
3773
3774	NOREF(pResult);
3775	return VINF_SUCCESS;
3776	}
3777
3778
3779	/**
3780	* Executes the search.
3781	*
3782	* @returns VBox status code.
3783	* @param pCmdHlp The command helpers.
3784	* @param pVM The VM handle.
3785	* @param pAddress The address to start searching from. (undefined on output)
3786	* @param cbRange The address range to search. Must not wrap.
3787	* @param pabBytes The byte pattern to search for.
3788	* @param cbBytes The size of the pattern.
3789	* @param cbUnit The search unit.
3790	* @param cMaxHits The max number of hits.
3791	* @param pResult Where to store the result if it's a function invocation.
3792	*/
3793	static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3794	const uint8_t *pabBytes, uint32_t cbBytes,
3795	uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3796	{
3797	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3798
3799	/*
3800	* Do the search.
3801	*/
3802	uint64_t cHits = 0;
3803	for (;;)
3804	{
3805	/* search */
3806	DBGFADDRESS HitAddress;
3807	int rc = DBGFR3MemScan(pVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3808	if (RT_FAILURE(rc))
3809	{
3810	if (rc != VERR_DBGF_MEM_NOT_FOUND)
3811	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3812
3813	/* update the current address so we can save it (later). */
3814	pAddress->off += cbRange;
3815	pAddress->FlatPtr += cbRange;
3816	cbRange = 0;
3817	break;
3818	}
3819
3820	/* report result */
3821	DBGCVAR VarCur;
3822	dbgcVarInit(&VarCur);
3823	dbgcVarSetDbgfAddr(&VarCur, &HitAddress);
3824	if (!pResult)
3825	pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3826	else
3827	dbgcVarSetDbgfAddr(pResult, &HitAddress);
3828
3829	/* advance */
3830	cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3831	*pAddress = HitAddress;
3832	pAddress->FlatPtr += cbBytes;
3833	pAddress->off += cbBytes;
3834	if (cbRange <= cbBytes)
3835	{
3836	cbRange = 0;
3837	break;
3838	}
3839	cbRange -= cbBytes;
3840
3841	if (++cHits >= cMaxHits)
3842	{
3843	/// @todo save the search.
3844	break;
3845	}
3846	}
3847
3848	/*
3849	* Save the search so we can resume it...
3850	*/
3851	if (pDbgc->abSearch != pabBytes)
3852	{
3853	memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3854	pDbgc->cbSearch = cbBytes;
3855	pDbgc->cbSearchUnit = cbUnit;
3856	}
3857	pDbgc->cMaxSearchHits = cMaxHits;
3858	pDbgc->SearchAddr = *pAddress;
3859	pDbgc->cbSearchRange = cbRange;
3860
3861	return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3862	}
3863
3864
3865	/**
3866	* Resumes the previous search.
3867	*
3868	* @returns VBox status code.
3869	* @param pCmdHlp Pointer to the command helper functions.
3870	* @param pVM Pointer to the current VM (if any).
3871	* @param pResult Where to store the result of a function invocation.
3872	*/
3873	static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGCVAR pResult)
3874	{
3875	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3876
3877	/*
3878	* Make sure there is a previous command.
3879	*/
3880	if (!pDbgc->cbSearch)
3881	{
3882	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Error: No previous search\n");
3883	return VERR_DBGC_COMMAND_FAILED;
3884	}
3885
3886	/*
3887	* Make range and address adjustments.
3888	*/
3889	DBGFADDRESS Address = pDbgc->SearchAddr;
3890	if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3891	{
3892	Address.FlatPtr -= Address.off;
3893	Address.off = 0;
3894	}
3895
3896	RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3897	if (!cbRange)
3898	cbRange = ~(RTGCUINTPTR)0;
3899	if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3900	cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3901
3902	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3903	pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3904	}
3905
3906
3907	/**
3908	* Search memory, worker for the 's' and 's?' functions.
3909	*
3910	* @returns VBox status.
3911	* @param pCmdHlp Pointer to the command helper functions.
3912	* @param pVM Pointer to the current VM (if any).
3913	* @param pAddress Where to start searching. If no range, search till end of address space.
3914	* @param cMaxHits The maximum number of hits.
3915	* @param chType The search type.
3916	* @param paPatArgs The pattern variable array.
3917	* @param cPatArgs Number of pattern variables.
3918	* @param pResult Where to store the result of a function invocation.
3919	*/
3920	static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3921	PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3922	{
3923	dbgcVarSetGCFlat(pResult, 0);
3924
3925	/*
3926	* Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3927	*/
3928	uint32_t cbUnit;
3929	switch (chType)
3930	{
3931	case 'a':
3932	case 'b': cbUnit = 1; break;
3933	case 'u': cbUnit = 2 \| RT_BIT_32(31); break;
3934	case 'w': cbUnit = 2; break;
3935	case 'd': cbUnit = 4; break;
3936	case 'q': cbUnit = 8; break;
3937	default:
3938	return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3939	}
3940	uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3941	uint32_t cbBytes = sizeof(abBytes);
3942	int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3943	if (RT_FAILURE(rc))
3944	return VERR_DBGC_COMMAND_FAILED;
3945
3946	/*
3947	* Make DBGF address and fix the range.
3948	*/
3949	DBGFADDRESS Address;
3950	rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3951	if (RT_FAILURE(rc))
3952	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3953
3954	RTGCUINTPTR cbRange;
3955	switch (pAddress->enmRangeType)
3956	{
3957	case DBGCVAR_RANGE_BYTES:
3958	cbRange = pAddress->u64Range;
3959	if (cbRange != pAddress->u64Range)
3960	cbRange = ~(RTGCUINTPTR)0;
3961	break;
3962
3963	case DBGCVAR_RANGE_ELEMENTS:
3964	cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3965	if ( cbRange != pAddress->u64Range * cbUnit
3966	\|\| cbRange < pAddress->u64Range)
3967	cbRange = ~(RTGCUINTPTR)0;
3968	break;
3969
3970	default:
3971	cbRange = ~(RTGCUINTPTR)0;
3972	break;
3973	}
3974	if (Address.FlatPtr + cbRange < Address.FlatPtr)
3975	cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3976
3977	/*
3978	* Ok, do it.
3979	*/
3980	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3981	}
3982
3983
3984	/**
3985	* The 's' command.
3986	*
3987	* @returns VBox status.
3988	* @param pCmd Pointer to the command descriptor (as registered).
3989	* @param pCmdHlp Pointer to command helper functions.
3990	* @param pVM Pointer to the current VM (if any).
3991	* @param paArgs Pointer to (readonly) array of arguments.
3992	* @param cArgs Number of arguments in the array.
3993	*/
3994	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3995	{
3996	/* check that the parser did what it's supposed to do. */
3997	//if ( cArgs <= 2
3998	// && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3999	// return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
4000
4001	/*
4002	* Repeat previous search?
4003	*/
4004	if (cArgs == 0)
4005	return dbgcCmdWorkerSearchMemResume(pCmdHlp, pVM, pResult);
4006
4007	/*
4008	* Parse arguments.
4009	*/
4010
4011	return -1;
4012	}
4013
4014
4015	/**
4016	* The 's?' command.
4017	*
4018	* @returns VBox status.
4019	* @param pCmd Pointer to the command descriptor (as registered).
4020	* @param pCmdHlp Pointer to command helper functions.
4021	* @param pVM Pointer to the current VM (if any).
4022	* @param paArgs Pointer to (readonly) array of arguments.
4023	* @param cArgs Number of arguments in the array.
4024	*/
4025	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4026	{
4027	/* check that the parser did what it's supposed to do. */
4028	if ( cArgs < 2
4029	\|\| !DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
4030	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
4031	return dbgcCmdWorkerSearchMem(pCmdHlp, pVM, &paArgs[0], pResult ? 1 : 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, pResult);
4032	}
4033
4034
4035	/**
4036	* List near symbol.
4037	*
4038	* @returns VBox status code.
4039	* @param pCmdHlp Pointer to command helper functions.
4040	* @param pVM Pointer to the current VM (if any).
4041	* @param pArg Pointer to the address or symbol to lookup.
4042	*/
4043	static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pArg, PDBGCVAR pResult)
4044	{
4045	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4046	dbgcVarSetGCFlat(pResult, 0);
4047
4048	RTDBGSYMBOL Symbol;
4049	int rc;
4050	if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
4051	{
4052	/*
4053	* Lookup the symbol address.
4054	*/
4055	rc = DBGFR3AsSymbolByName(pVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
4056	if (RT_FAILURE(rc))
4057	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
4058
4059	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%Rptr %s\n", Symbol.Value, Symbol.szName);
4060	dbgcVarSetGCFlatByteRange(pResult, Symbol.Value, Symbol.cb);
4061	}
4062	else
4063	{
4064	/*
4065	* Convert it to a flat GC address and lookup that address.
4066	*/
4067	DBGCVAR AddrVar;
4068	rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
4069	if (RT_FAILURE(rc))
4070	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
4071
4072	dbgcVarSetVar(pResult, &AddrVar);
4073
4074	RTINTPTR offDisp;
4075	DBGFADDRESS Addr;
4076	rc = DBGFR3AsSymbolByAddr(pVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pVM, &Addr, AddrVar.u.GCFlat), &offDisp, &Symbol, NULL);
4077	if (RT_FAILURE(rc))
4078	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
4079
4080	if (!offDisp)
4081	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s", &AddrVar, Symbol.szName);
4082	else if (offDisp > 0)
4083	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
4084	else
4085	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
4086	if ((RTGCINTPTR)Symbol.cb > -offDisp)
4087	{
4088	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " LB %RGv\n", Symbol.cb + offDisp);
4089	dbgcVarSetByteRange(pResult, Symbol.cb + offDisp);
4090	}
4091	else
4092	{
4093	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
4094	dbgcVarSetNoRange(pResult);
4095	}
4096	}
4097
4098	return rc;
4099	}
4100
4101
4102	/**
4103	* The 'ln' (listnear) command.
4104	*
4105	* @returns VBox status.
4106	* @param pCmd Pointer to the command descriptor (as registered).
4107	* @param pCmdHlp Pointer to command helper functions.
4108	* @param pVM Pointer to the current VM (if any).
4109	* @param paArgs Pointer to (readonly) array of arguments.
4110	* @param cArgs Number of arguments in the array.
4111	*/
4112	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4113	{
4114	dbgcVarSetGCFlat(pResult, 0);
4115	if (!cArgs)
4116	{
4117	/*
4118	* Current cs:eip symbol.
4119	*/
4120	DBGCVAR AddrVar;
4121	int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(cs:eip)");
4122	if (RT_FAILURE(rc))
4123	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(cs:eip)\n");
4124	return dbgcDoListNear(pCmdHlp, pVM, &AddrVar, pResult);
4125	}
4126
4127	/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
4128	/*
4129	* Iterate arguments.
4130	*/
4131	for (unsigned iArg = 0; iArg < cArgs; iArg++)
4132	{
4133	int rc = dbgcDoListNear(pCmdHlp, pVM, &paArgs[iArg], pResult);
4134	if (RT_FAILURE(rc))
4135	return rc;
4136	}
4137
4138	NOREF(pCmd); NOREF(pResult);
4139	return VINF_SUCCESS;
4140	}
4141
4142
4143	/**
4144	* Matches the module patters against a module name.
4145	*
4146	* @returns true if matching, otherwise false.
4147	* @param pszName The module name.
4148	* @param paArgs The module pattern argument list.
4149	* @param cArgs Number of arguments.
4150	*/
4151	static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
4152	{
4153	for (uint32_t i = 0; i < cArgs; i++)
4154	if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
4155	return true;
4156	return false;
4157	}
4158
4159
4160	/**
4161	* The 'ln' (listnear) command.
4162	*
4163	* @returns VBox status.
4164	* @param pCmd Pointer to the command descriptor (as registered).
4165	* @param pCmdHlp Pointer to command helper functions.
4166	* @param pVM Pointer to the current VM (if any).
4167	* @param paArgs Pointer to (readonly) array of arguments.
4168	* @param cArgs Number of arguments in the array.
4169	*/
4170	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4171	{
4172	bool const fMappings = pCmd->pszCmd[2] == 'o';
4173	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4174
4175	/*
4176	* Iterate the modules in the current address space and print info about
4177	* those matching the input.
4178	*/
4179	RTDBGAS hAs = DBGFR3AsResolveAndRetain(pVM, pDbgc->hDbgAs);
4180	uint32_t cMods = RTDbgAsModuleCount(hAs);
4181	for (uint32_t iMod = 0; iMod < cMods; iMod++)
4182	{
4183	RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
4184	if (hMod != NIL_RTDBGMOD)
4185	{
4186	uint32_t const cSegs = RTDbgModSegmentCount(hMod);
4187	const char * const pszName = RTDbgModName(hMod);
4188	if ( cArgs == 0
4189	\|\| dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
4190	{
4191	/*
4192	* Find the mapping with the lower address, preferring a full
4193	* image mapping, for the main line.
4194	*/
4195	RTDBGASMAPINFO aMappings[128];
4196	uint32_t cMappings = RT_ELEMENTS(aMappings);
4197	int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /fFlags/);
4198	if (RT_SUCCESS(rc))
4199	{
4200	bool fFull = false;
4201	RTUINTPTR uMin = RTUINTPTR_MAX;
4202	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4203	if ( aMappings[iMap].Address < uMin
4204	&& ( !fFull
4205	\|\| aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4206	uMin = aMappings[iMap].Address;
4207	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s\n", (RTGCUINTPTR)uMin, cSegs, pszName);
4208
4209	if (fMappings)
4210	{
4211	/* sort by address first - not very efficient. */
4212	for (uint32_t i = 0; i + 1 < cMappings; i++)
4213	for (uint32_t j = i + 1; j < cMappings; j++)
4214	if (aMappings[j].Address < aMappings[i].Address)
4215	{
4216	RTDBGASMAPINFO Tmp = aMappings[j];
4217	aMappings[j] = aMappings[i];
4218	aMappings[i] = Tmp;
4219	}
4220
4221	/* print */
4222	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4223	if (aMappings[iMap].iSeg != NIL_RTDBGSEGIDX)
4224	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4225	(RTGCUINTPTR)aMappings[iMap].Address,
4226	(RTGCUINTPTR)RTDbgModSegmentSize(hMod, aMappings[iMap].iSeg),
4227	aMappings[iMap].iSeg,
4228	/** @todo RTDbgModSegmentName(hMod, aMappings[iMap].iSeg)*/ "noname");
4229	else
4230	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4231	(RTGCUINTPTR)aMappings[iMap].Address,
4232	(RTGCUINTPTR)RTDbgModImageSize(hMod));
4233	}
4234	}
4235	else
4236	DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4237	sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4238	/** @todo missing address space API for enumerating the mappings. */
4239	}
4240	RTDbgModRelease(hMod);
4241	}
4242	}
4243	RTDbgAsRelease(hAs);
4244
4245	NOREF(pCmd); NOREF(pResult);
4246	return VINF_SUCCESS;
4247	}

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source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 35625

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