DBGCEmulateCodeView.cpp@ 35626

Last change on this file since 35626 was 35626, checked in by vboxsync, 14 years ago
Debugger Console: Drop the HC_FAR type.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 183.9 KB

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1	/* $Id: DBGCEmulateCodeView.cpp 35626 2011-01-19 12:29:20Z 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	{
1036	DBGCVAR VarTmp;
1037	rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1038	if (RT_FAILURE(rc))
1039	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: failed to evaluate '%%(%Dv)' -> %Rrc .\n", &pDbgc->DisasmPos, rc);
1040	pDbgc->DisasmPos = VarTmp;
1041	break;
1042	}
1043	default: AssertFailed(); break;
1044	}
1045
1046	/*
1047	* Print address.
1048	* todo: Change to list near.
1049	*/
1050	#if 0
1051	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DisasmPos);
1052	if (RT_FAILURE(rc))
1053	return rc;
1054	#endif
1055
1056	/*
1057	* Do the disassembling.
1058	*/
1059	unsigned cTries = 32;
1060	int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1061	if (iRangeLeft == 0) /* kludge for 'r'. */
1062	iRangeLeft = -1;
1063	for (;;)
1064	{
1065	/*
1066	* Disassemble the instruction.
1067	*/
1068	char szDis[256];
1069	uint32_t cbInstr = 1;
1070	if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1071	rc = DBGFR3DisasInstrEx(pVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1072	&szDis[0], sizeof(szDis), &cbInstr);
1073	else
1074	rc = DBGFR3DisasInstrEx(pVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1075	&szDis[0], sizeof(szDis), &cbInstr);
1076	if (RT_SUCCESS(rc))
1077	{
1078	/* print it */
1079	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1080	if (RT_FAILURE(rc))
1081	return rc;
1082	}
1083	else
1084	{
1085	/* bitch. */
1086	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to disassemble instruction, skipping one byte.\n");
1087	if (RT_FAILURE(rc))
1088	return rc;
1089	if (cTries-- > 0)
1090	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Too many disassembly failures. Giving up.\n");
1091	cbInstr = 1;
1092	}
1093
1094	/* advance */
1095	if (iRangeLeft < 0) /* 'r' */
1096	break;
1097	if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1098	iRangeLeft--;
1099	else
1100	iRangeLeft -= cbInstr;
1101	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1102	if (RT_FAILURE(rc))
1103	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DisasmPos, cbInstr);
1104	if (iRangeLeft <= 0)
1105	break;
1106	fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_CURRENT_HYPER);
1107	}
1108
1109	NOREF(pCmd); NOREF(pResult);
1110	return 0;
1111	}
1112
1113
1114	/**
1115	* The 'ls' command.
1116	*
1117	* @returns VBox status.
1118	* @param pCmd Pointer to the command descriptor (as registered).
1119	* @param pCmdHlp Pointer to command helper functions.
1120	* @param pVM Pointer to the current VM (if any).
1121	* @param paArgs Pointer to (readonly) array of arguments.
1122	* @param cArgs Number of arguments in the array.
1123	*/
1124	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1125	{
1126	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1127
1128	/*
1129	* Validate input.
1130	*/
1131	if ( cArgs > 1
1132	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
1133	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
1134	if (!pVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1135	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Don't know where to start disassembling...\n");
1136	if (!pVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1137	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: GC address but no VM.\n");
1138
1139	/*
1140	* Find address.
1141	*/
1142	if (!cArgs)
1143	{
1144	if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1145	{
1146	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
1147	pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1148	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1149	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1150	}
1151	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1152	}
1153	else
1154	pDbgc->SourcePos = paArgs[0];
1155	pDbgc->pLastPos = &pDbgc->SourcePos;
1156
1157	/*
1158	* Ensure the source address is flat GC.
1159	*/
1160	switch (pDbgc->SourcePos.enmType)
1161	{
1162	case DBGCVAR_TYPE_GC_FLAT:
1163	break;
1164	case DBGCVAR_TYPE_GC_PHYS:
1165	case DBGCVAR_TYPE_GC_FAR:
1166	case DBGCVAR_TYPE_HC_FLAT:
1167	case DBGCVAR_TYPE_HC_PHYS:
1168	{
1169	int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1170	if (RT_FAILURE(rc))
1171	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid address or address type. (rc=%d)\n", rc);
1172	break;
1173	}
1174	default: AssertFailed(); break;
1175	}
1176
1177	/*
1178	* Range.
1179	*/
1180	switch (pDbgc->SourcePos.enmRangeType)
1181	{
1182	case DBGCVAR_RANGE_NONE:
1183	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1184	pDbgc->SourcePos.u64Range = 10;
1185	break;
1186
1187	case DBGCVAR_RANGE_ELEMENTS:
1188	if (pDbgc->SourcePos.u64Range > 2048)
1189	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
1190	break;
1191
1192	case DBGCVAR_RANGE_BYTES:
1193	if (pDbgc->SourcePos.u64Range > 65536)
1194	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
1195	break;
1196
1197	default:
1198	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1199	}
1200
1201	/*
1202	* Do the disassembling.
1203	*/
1204	bool fFirst = 1;
1205	DBGFLINE LinePrev = { 0, 0, "" };
1206	int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1207	if (iRangeLeft == 0) /* kludge for 'r'. */
1208	iRangeLeft = -1;
1209	for (;;)
1210	{
1211	/*
1212	* Get line info.
1213	*/
1214	DBGFLINE Line;
1215	RTGCINTPTR off;
1216	int rc = DBGFR3LineByAddr(pVM, pDbgc->SourcePos.u.GCFlat, &off, &Line);
1217	if (RT_FAILURE(rc))
1218	return VINF_SUCCESS;
1219
1220	unsigned cLines = 0;
1221	if (memcmp(&Line, &LinePrev, sizeof(Line)))
1222	{
1223	/*
1224	* Print filenamename
1225	*/
1226	if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1227	fFirst = true;
1228	if (fFirst)
1229	{
1230	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1231	if (RT_FAILURE(rc))
1232	return rc;
1233	}
1234
1235	/*
1236	* Try open the file and read the line.
1237	*/
1238	FILE *phFile = fopen(Line.szFilename, "r");
1239	if (phFile)
1240	{
1241	/* Skip ahead to the desired line. */
1242	char szLine[4096];
1243	unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1244	if (cBefore > 7)
1245	cBefore = 0;
1246	unsigned cLeft = Line.uLineNo - cBefore;
1247	while (cLeft > 0)
1248	{
1249	szLine[0] = '\0';
1250	if (!fgets(szLine, sizeof(szLine), phFile))
1251	break;
1252	cLeft--;
1253	}
1254	if (!cLeft)
1255	{
1256	/* print the before lines */
1257	for (;;)
1258	{
1259	size_t cch = strlen(szLine);
1260	while (cch > 0 && (szLine[cch - 1] == '\r' \|\| szLine[cch - 1] == '\n' \|\| RT_C_IS_SPACE(szLine[cch - 1])) )
1261	szLine[--cch] = '\0';
1262	if (cBefore-- <= 0)
1263	break;
1264
1265	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1266	szLine[0] = '\0';
1267	fgets(szLine, sizeof(szLine), phFile);
1268	cLines++;
1269	}
1270	/* print the actual line */
1271	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1272	}
1273	fclose(phFile);
1274	if (RT_FAILURE(rc))
1275	return rc;
1276	fFirst = false;
1277	}
1278	else
1279	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1280
1281	LinePrev = Line;
1282	}
1283
1284
1285	/*
1286	* Advance
1287	*/
1288	if (iRangeLeft < 0) /* 'r' */
1289	break;
1290	if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1291	iRangeLeft -= cLines;
1292	else
1293	iRangeLeft -= 1;
1294	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1295	if (RT_FAILURE(rc))
1296	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1297	if (iRangeLeft <= 0)
1298	break;
1299	}
1300
1301	NOREF(pCmd); NOREF(pResult);
1302	return 0;
1303	}
1304
1305
1306	/**
1307	* The 'r' command.
1308	*
1309	* @returns VBox status.
1310	* @param pCmd Pointer to the command descriptor (as registered).
1311	* @param pCmdHlp Pointer to command helper functions.
1312	* @param pVM Pointer to the current VM (if any).
1313	* @param paArgs Pointer to (readonly) array of arguments.
1314	* @param cArgs Number of arguments in the array.
1315	*/
1316	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1317	{
1318	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1319	if (!pDbgc->fRegCtxGuest)
1320	return dbgcCmdRegHyper(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
1321	return dbgcCmdRegGuest(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
1322	}
1323
1324
1325	/**
1326	* Common worker for the dbgcCmdReg*() commands.
1327	*
1328	* @returns VBox status.
1329	* @param pCmd Pointer to the command descriptor (as registered).
1330	* @param pCmdHlp Pointer to command helper functions.
1331	* @param pVM Pointer to the current VM (if any).
1332	* @param paArgs Pointer to (readonly) array of arguments.
1333	* @param cArgs Number of arguments in the array.
1334	* @param pszPrefix The symbol prefix.
1335	*/
1336	static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs,
1337	PDBGCVAR pResult, const char *pszPrefix)
1338	{
1339	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1340	Assert(cArgs == 1 \|\| cArgs == 2); /* cArgs == 0 is handled by the caller */
1341	if ( paArgs[0].enmType != DBGCVAR_TYPE_STRING
1342	&& paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL)
1343	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. Try drop the '@' or/and quote the register name\n");
1344
1345	/*
1346	* Parse the register name and kind.
1347	*/
1348	const char *pszReg = paArgs[0].u.pszString;
1349	if (*pszReg == '@')
1350	pszReg++;
1351	VMCPUID idCpu = pDbgc->idCpu;
1352	if (*pszPrefix)
1353	idCpu \|= DBGFREG_HYPER_VMCPUID;
1354	if (*pszReg == '.')
1355	{
1356	pszReg++;
1357	idCpu \|= DBGFREG_HYPER_VMCPUID;
1358	}
1359	const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1360
1361	/*
1362	* Query the register type & value (the setter needs the type).
1363	*/
1364	DBGFREGVALTYPE enmType;
1365	DBGFREGVAL Value;
1366	int rc = DBGFR3RegNmQuery(pVM, idCpu, pszReg, &Value, &enmType);
1367	if (RT_FAILURE(rc))
1368	{
1369	if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1370	return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1371	pszActualPrefix, pszReg);
1372	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1373	pszActualPrefix, pszReg, rc);
1374	}
1375	if (cArgs == 1)
1376	{
1377	/*
1378	* Show the register.
1379	*/
1380	char szValue[160];
1381	rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /fSpecial/);
1382	if (RT_SUCCESS(rc))
1383	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1384	else
1385	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1386	}
1387	else if (cArgs == 2)
1388	{
1389	/*
1390	* Modify the register.
1391	*/
1392	if ( paArgs[1].enmType == DBGCVAR_TYPE_STRING
1393	\|\| paArgs[1].enmType == DBGCVAR_TYPE_SYMBOL)
1394	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly on the 2nd argument yet...\n");
1395	if (enmType != DBGFREGVALTYPE_DTR)
1396	{
1397	enmType = DBGFREGVALTYPE_U64;
1398	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.u64);
1399	}
1400	else
1401	{
1402	enmType = DBGFREGVALTYPE_DTR;
1403	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.dtr.u64Base);
1404	if (RT_SUCCESS(rc) && paArgs[1].enmRangeType != DBGCVAR_RANGE_NONE)
1405	Value.dtr.u32Limit = (uint32_t)paArgs[1].u64Range;
1406	}
1407	if (RT_SUCCESS(rc))
1408	{
1409	rc = DBGFR3RegNmSet(pVM, idCpu, pszReg, &Value, enmType);
1410	if (RT_FAILURE(rc))
1411	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1412	pszActualPrefix, pszReg, rc);
1413	}
1414	else
1415	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1416	}
1417	else
1418	{
1419	NOREF(pCmd); NOREF(paArgs); NOREF(pResult);
1420	rc = DBGCCmdHlpPrintf(pCmdHlp, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1421	}
1422	return rc;
1423	}
1424
1425
1426	/**
1427	* The 'rg', 'rg64' and 'rg32' commands.
1428	*
1429	* @returns VBox status.
1430	* @param pCmd Pointer to the command descriptor (as registered).
1431	* @param pCmdHlp Pointer to command helper functions.
1432	* @param pVM Pointer to the current VM (if any).
1433	* @param paArgs Pointer to (readonly) array of arguments.
1434	* @param cArgs Number of arguments in the array.
1435	*/
1436	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1437	{
1438	/*
1439	* Show all registers our selves.
1440	*/
1441	if (cArgs == 0)
1442	{
1443	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1444	bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1445	\|\| ( !strcmp(pCmd->pszCmd, "rg32")
1446	&& CPUMIsGuestIn64BitCodeEx(CPUMQueryGuestCtxPtr(VMMGetCpuById(pVM, pDbgc->idCpu))));
1447	char szDisAndRegs[8192];
1448	int rc;
1449
1450	if (pDbgc->fRegTerse)
1451	{
1452	if (f64BitMode)
1453	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1454	"u %016VR{rip} L 0\n"
1455	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1456	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1457	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1458	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1459	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1460	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1461	else
1462	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1463	"u %04VR{cs}:%08VR{eip} L 0\n"
1464	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1465	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1466	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1467	}
1468	else
1469	{
1470	if (f64BitMode)
1471	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1472	"u %016VR{rip} L 0\n"
1473	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1474	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1475	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1476	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1477	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1478	"cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1479	"ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1480	"es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1481	"fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1482	"gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1483	"ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1484	"dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1485	"dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1486	"gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1487	"ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1488	"tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1489	" sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1490	" efer=%016VR{efer}\n"
1491	" pat=%016VR{pat}\n"
1492	" sf_mask=%016VR{sf_mask}\n"
1493	"krnl_gs_base=%016VR{krnl_gs_base}\n"
1494	" lstar=%016VR{lstar}\n"
1495	" star=%016VR{star} cstar=%016VR{cstar}\n"
1496	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1497	);
1498	else
1499	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1500	"u %04VR{cs}:%08VR{eip} L 0\n"
1501	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1502	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1503	"cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1504	"ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1505	"es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr6=%08VR{dr6}\n"
1506	"fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr0}\n"
1507	"gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr0} cr4=%08VR{cr0}\n"
1508	"ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1509	"gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1510	"ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1511	"tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1512	"sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1513	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1514	);
1515	}
1516	if (RT_FAILURE(rc))
1517	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1518	char *pszRegs = strchr(szDisAndRegs, '\n');
1519	*pszRegs++ = '\0';
1520	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1521
1522	/*
1523	* Disassemble one instruction at cs:[r\|e]ip.
1524	*/
1525	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1526	}
1527	return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult, "");
1528	}
1529
1530
1531	/**
1532	* The 'rh' command.
1533	*
1534	* @returns VBox status.
1535	* @param pCmd Pointer to the command descriptor (as registered).
1536	* @param pCmdHlp Pointer to command helper functions.
1537	* @param pVM Pointer to the current VM (if any).
1538	* @param paArgs Pointer to (readonly) array of arguments.
1539	* @param cArgs Number of arguments in the array.
1540	*/
1541	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1542	{
1543	/*
1544	* Show all registers our selves.
1545	*/
1546	if (cArgs == 0)
1547	{
1548	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1549	char szDisAndRegs[8192];
1550	int rc;
1551
1552	if (pDbgc->fRegTerse)
1553	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1554	"u %VR{cs}:%VR{eip} L 0\n"
1555	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1556	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1557	".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1558	else
1559	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1560	"u %04VR{cs}:%08VR{eip} L 0\n"
1561	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1562	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1563	".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1564	".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1565	".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1566	".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1567	".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1568	".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1569	".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1570	".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1571	".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1572	);
1573	if (RT_FAILURE(rc))
1574	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1575	char *pszRegs = strchr(szDisAndRegs, '\n');
1576	*pszRegs++ = '\0';
1577	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1578
1579	/*
1580	* Disassemble one instruction at cs:[r\|e]ip.
1581	*/
1582	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1583	}
1584	return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult, ".");
1585	}
1586
1587
1588	/**
1589	* The 'rt' command.
1590	*
1591	* @returns VBox status.
1592	* @param pCmd Pointer to the command descriptor (as registered).
1593	* @param pCmdHlp Pointer to command helper functions.
1594	* @param pVM Pointer to the current VM (if any).
1595	* @param paArgs Pointer to (readonly) array of arguments.
1596	* @param cArgs Number of arguments in the array.
1597	*/
1598	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1599	{
1600	NOREF(pCmd); NOREF(pVM); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1601
1602	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1603	pDbgc->fRegTerse = !pDbgc->fRegTerse;
1604	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1605	}
1606
1607
1608	/**
1609	* The 't' command.
1610	*
1611	* @returns VBox status.
1612	* @param pCmd Pointer to the command descriptor (as registered).
1613	* @param pCmdHlp Pointer to command helper functions.
1614	* @param pVM Pointer to the current VM (if any).
1615	* @param paArgs Pointer to (readonly) array of arguments.
1616	* @param cArgs Number of arguments in the array.
1617	*/
1618	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1619	{
1620	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1621
1622	int rc = DBGFR3Step(pVM, pDbgc->idCpu);
1623	if (RT_SUCCESS(rc))
1624	pDbgc->fReady = false;
1625	else
1626	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1627
1628	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1629	return rc;
1630	}
1631
1632
1633	/**
1634	* The 'k', 'kg' and 'kh' commands.
1635	*
1636	* @returns VBox status.
1637	* @param pCmd Pointer to the command descriptor (as registered).
1638	* @param pCmdHlp Pointer to command helper functions.
1639	* @param pVM Pointer to the current VM (if any).
1640	* @param paArgs Pointer to (readonly) array of arguments.
1641	* @param cArgs Number of arguments in the array.
1642	*/
1643	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1644	{
1645	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1646
1647	/*
1648	* Figure which context we're called for and start walking that stack.
1649	*/
1650	int rc;
1651	PCDBGFSTACKFRAME pFirstFrame;
1652	bool const fGuest = pCmd->pszCmd[1] == 'g'
1653	\|\| (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1654	rc = DBGFR3StackWalkBegin(pVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1655	if (RT_FAILURE(rc))
1656	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to begin stack walk, rc=%Rrc\n", rc);
1657
1658	/*
1659	* Print header.
1660	* 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1661	*/
1662	uint32_t fBitFlags = 0;
1663	for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1664	pFrame;
1665	pFrame = DBGFR3StackWalkNext(pFrame))
1666	{
1667	uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT \| DBGFSTACKFRAME_FLAGS_32BIT \| DBGFSTACKFRAME_FLAGS_64BIT);
1668	if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1669	{
1670	if (fCurBitFlags != fBitFlags)
1671	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1672	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1673	pFrame->AddrFrame.Sel,
1674	(uint16_t)pFrame->AddrFrame.off,
1675	pFrame->AddrReturnFrame.Sel,
1676	(uint16_t)pFrame->AddrReturnFrame.off,
1677	(uint32_t)pFrame->AddrReturnPC.Sel,
1678	(uint32_t)pFrame->AddrReturnPC.off,
1679	pFrame->Args.au32[0],
1680	pFrame->Args.au32[1],
1681	pFrame->Args.au32[2],
1682	pFrame->Args.au32[3]);
1683	}
1684	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1685	{
1686	if (fCurBitFlags != fBitFlags)
1687	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1688	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1689	(uint32_t)pFrame->AddrFrame.off,
1690	(uint32_t)pFrame->AddrReturnFrame.off,
1691	(uint32_t)pFrame->AddrReturnPC.Sel,
1692	(uint32_t)pFrame->AddrReturnPC.off,
1693	pFrame->Args.au32[0],
1694	pFrame->Args.au32[1],
1695	pFrame->Args.au32[2],
1696	pFrame->Args.au32[3]);
1697	}
1698	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1699	{
1700	if (fCurBitFlags != fBitFlags)
1701	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1702	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%016RX64 %04RX16:%016RX64 %016RX64",
1703	(uint64_t)pFrame->AddrFrame.off,
1704	pFrame->AddrReturnFrame.Sel,
1705	(uint64_t)pFrame->AddrReturnFrame.off,
1706	(uint64_t)pFrame->AddrReturnPC.off);
1707	}
1708	if (RT_FAILURE(rc))
1709	break;
1710	if (!pFrame->pSymPC)
1711	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1712	fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1713	? " %RTsel:%016RGv"
1714	: fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1715	? " %RTsel:%08RGv"
1716	: " %RTsel:%04RGv"
1717	, pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1718	else
1719	{
1720	RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1721	if (offDisp > 0)
1722	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1723	else if (offDisp < 0)
1724	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1725	else
1726	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s", pFrame->pSymPC->szName);
1727	}
1728	if (RT_SUCCESS(rc) && pFrame->pLinePC)
1729	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1730	if (RT_SUCCESS(rc))
1731	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
1732	if (RT_FAILURE(rc))
1733	break;
1734
1735	fBitFlags = fCurBitFlags;
1736	}
1737
1738	DBGFR3StackWalkEnd(pFirstFrame);
1739
1740	NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1741	return rc;
1742	}
1743
1744
1745	static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1746	{
1747	/* GUEST64 */
1748	int rc;
1749
1750	const char *pszHyper = fHyper ? " HYPER" : "";
1751	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1752	if (pDesc->Gen.u1DescType)
1753	{
1754	static const char * const s_apszTypes[] =
1755	{
1756	"DataRO", /* 0 Read-Only */
1757	"DataRO", /* 1 Read-Only - Accessed */
1758	"DataRW", /* 2 Read/Write */
1759	"DataRW", /* 3 Read/Write - Accessed */
1760	"DownRO", /* 4 Expand-down, Read-Only */
1761	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1762	"DownRW", /* 6 Expand-down, Read/Write */
1763	"DownRO", /* 7 Expand-down, Read/Write - Accessed */
1764	"CodeEO", /* 8 Execute-Only */
1765	"CodeEO", /* 9 Execute-Only - Accessed */
1766	"CodeER", /* A Execute/Readable */
1767	"CodeER", /* B Execute/Readable - Accessed */
1768	"ConfE0", /* C Conforming, Execute-Only */
1769	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1770	"ConfER", /* E Conforming, Execute/Readable */
1771	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1772	};
1773	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1774	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1775	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1776	uint32_t u32Base = X86DESC_BASE(*pDesc);
1777	uint32_t cbLimit = X86DESC_LIMIT(*pDesc);
1778	if (pDesc->Gen.u1Granularity)
1779	cbLimit <<= PAGE_SHIFT;
1780
1781	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1782	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1783	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1784	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1785	}
1786	else
1787	{
1788	static const char * const s_apszTypes[] =
1789	{
1790	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1791	"Ill-1 ", /* 1 0001 Available 16-bit TSS */
1792	"LDT ", /* 2 0010 LDT */
1793	"Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1794	"Ill-4 ", /* 4 0100 16-bit Call Gate */
1795	"Ill-5 ", /* 5 0101 Task Gate */
1796	"Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1797	"Ill-7 ", /* 7 0111 16-bit Trap Gate */
1798	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1799	"Tss64A", /* 9 1001 Available 32-bit TSS */
1800	"Ill-A ", /* A 1010 Reserved (Illegal) */
1801	"Tss64B", /* B 1011 Busy 32-bit TSS */
1802	"Call64", /* C 1100 32-bit Call Gate */
1803	"Ill-D ", /* D 1101 Reserved (Illegal) */
1804	"Int64 ", /* E 1110 32-bit Interrupt Gate */
1805	"Trap64" /* F 1111 32-bit Trap Gate */
1806	};
1807	switch (pDesc->Gen.u4Type)
1808	{
1809	/* raw */
1810	case X86_SEL_TYPE_SYS_UNDEFINED:
1811	case X86_SEL_TYPE_SYS_UNDEFINED2:
1812	case X86_SEL_TYPE_SYS_UNDEFINED4:
1813	case X86_SEL_TYPE_SYS_UNDEFINED3:
1814	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1815	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1816	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1817	case X86_SEL_TYPE_SYS_286_INT_GATE:
1818	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1819	case X86_SEL_TYPE_SYS_TASK_GATE:
1820	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1821	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1822	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1823	break;
1824
1825	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1826	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1827	case X86_SEL_TYPE_SYS_LDT:
1828	{
1829	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1830	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1831	const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1832
1833	uint64_t u32Base = X86DESC64_BASE(*pDesc);
1834	uint32_t cbLimit = X86DESC_LIMIT(*pDesc);
1835
1836	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1837	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1838	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1839	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1840	pszHyper);
1841	if (pfDblEntry)
1842	*pfDblEntry = true;
1843	break;
1844	}
1845
1846	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1847	{
1848	unsigned cParams = pDesc->au8[4] & 0x1f;
1849	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1850	RTSEL sel = pDesc->au16[1];
1851	uint64_t off = pDesc->au16[0]
1852	\| ((uint64_t)pDesc->au16[3] << 16)
1853	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1854	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1855	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1856	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1857	if (pfDblEntry)
1858	*pfDblEntry = true;
1859	break;
1860	}
1861
1862	case X86_SEL_TYPE_SYS_386_INT_GATE:
1863	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1864	{
1865	RTSEL sel = pDesc->au16[1];
1866	uint64_t off = pDesc->au16[0]
1867	\| ((uint64_t)pDesc->au16[3] << 16)
1868	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1869	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1870	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1871	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1872	if (pfDblEntry)
1873	*pfDblEntry = true;
1874	break;
1875	}
1876
1877	/* impossible, just it's necessary to keep gcc happy. */
1878	default:
1879	return VINF_SUCCESS;
1880	}
1881	}
1882	return VINF_SUCCESS;
1883	}
1884
1885
1886	/**
1887	* Worker function that displays one descriptor entry (GDT, LDT, IDT).
1888	*
1889	* @returns pfnPrintf status code.
1890	* @param pCmdHlp The DBGC command helpers.
1891	* @param pDesc The descriptor to display.
1892	* @param iEntry The descriptor entry number.
1893	* @param fHyper Whether the selector belongs to the hypervisor or not.
1894	*/
1895	static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1896	{
1897	int rc;
1898
1899	const char *pszHyper = fHyper ? " HYPER" : "";
1900	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1901	if (pDesc->Gen.u1DescType)
1902	{
1903	static const char * const s_apszTypes[] =
1904	{
1905	"DataRO", /* 0 Read-Only */
1906	"DataRO", /* 1 Read-Only - Accessed */
1907	"DataRW", /* 2 Read/Write */
1908	"DataRW", /* 3 Read/Write - Accessed */
1909	"DownRO", /* 4 Expand-down, Read-Only */
1910	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1911	"DownRW", /* 6 Expand-down, Read/Write */
1912	"DownRO", /* 7 Expand-down, Read/Write - Accessed */
1913	"CodeEO", /* 8 Execute-Only */
1914	"CodeEO", /* 9 Execute-Only - Accessed */
1915	"CodeER", /* A Execute/Readable */
1916	"CodeER", /* B Execute/Readable - Accessed */
1917	"ConfE0", /* C Conforming, Execute-Only */
1918	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1919	"ConfER", /* E Conforming, Execute/Readable */
1920	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1921	};
1922	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1923	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1924	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1925	uint32_t u32Base = pDesc->Gen.u16BaseLow
1926	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1927	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1928	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1929	if (pDesc->Gen.u1Granularity)
1930	cbLimit <<= PAGE_SHIFT;
1931
1932	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1933	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1934	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1935	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1936	}
1937	else
1938	{
1939	static const char * const s_apszTypes[] =
1940	{
1941	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1942	"Tss16A", /* 1 0001 Available 16-bit TSS */
1943	"LDT ", /* 2 0010 LDT */
1944	"Tss16B", /* 3 0011 Busy 16-bit TSS */
1945	"Call16", /* 4 0100 16-bit Call Gate */
1946	"TaskG ", /* 5 0101 Task Gate */
1947	"Int16 ", /* 6 0110 16-bit Interrupt Gate */
1948	"Trap16", /* 7 0111 16-bit Trap Gate */
1949	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1950	"Tss32A", /* 9 1001 Available 32-bit TSS */
1951	"Ill-A ", /* A 1010 Reserved (Illegal) */
1952	"Tss32B", /* B 1011 Busy 32-bit TSS */
1953	"Call32", /* C 1100 32-bit Call Gate */
1954	"Ill-D ", /* D 1101 Reserved (Illegal) */
1955	"Int32 ", /* E 1110 32-bit Interrupt Gate */
1956	"Trap32" /* F 1111 32-bit Trap Gate */
1957	};
1958	switch (pDesc->Gen.u4Type)
1959	{
1960	/* raw */
1961	case X86_SEL_TYPE_SYS_UNDEFINED:
1962	case X86_SEL_TYPE_SYS_UNDEFINED2:
1963	case X86_SEL_TYPE_SYS_UNDEFINED4:
1964	case X86_SEL_TYPE_SYS_UNDEFINED3:
1965	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1966	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1967	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1968	break;
1969
1970	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1971	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1972	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1973	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1974	case X86_SEL_TYPE_SYS_LDT:
1975	{
1976	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1977	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1978	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1979	uint32_t u32Base = pDesc->Gen.u16BaseLow
1980	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1981	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1982	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1983	if (pDesc->Gen.u1Granularity)
1984	cbLimit <<= PAGE_SHIFT;
1985
1986	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1987	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1988	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1989	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1990	pszHyper);
1991	break;
1992	}
1993
1994	case X86_SEL_TYPE_SYS_TASK_GATE:
1995	{
1996	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s TSS=%04x DPL=%d %s%s\n",
1997	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1998	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1999	break;
2000	}
2001
2002	case X86_SEL_TYPE_SYS_286_CALL_GATE:
2003	case X86_SEL_TYPE_SYS_386_CALL_GATE:
2004	{
2005	unsigned cParams = pDesc->au8[4] & 0x1f;
2006	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
2007	RTSEL sel = pDesc->au16[1];
2008	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
2009	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
2010	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2011	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
2012	break;
2013	}
2014
2015	case X86_SEL_TYPE_SYS_286_INT_GATE:
2016	case X86_SEL_TYPE_SYS_386_INT_GATE:
2017	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
2018	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
2019	{
2020	RTSEL sel = pDesc->au16[1];
2021	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
2022	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
2023	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2024	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
2025	break;
2026	}
2027
2028	/* impossible, just it's necessary to keep gcc happy. */
2029	default:
2030	return VINF_SUCCESS;
2031	}
2032	}
2033	return rc;
2034	}
2035
2036
2037	/**
2038	* The 'dg', 'dga', 'dl' and 'dla' commands.
2039	*
2040	* @returns VBox status.
2041	* @param pCmd Pointer to the command descriptor (as registered).
2042	* @param pCmdHlp Pointer to command helper functions.
2043	* @param pVM Pointer to the current VM (if any).
2044	* @param paArgs Pointer to (readonly) array of arguments.
2045	* @param cArgs Number of arguments in the array.
2046	*/
2047	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2048	{
2049	/*
2050	* Validate input.
2051	*/
2052	if (!pVM)
2053	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2054
2055	/*
2056	* Get the CPU mode, check which command variation this is
2057	* and fix a default parameter if needed.
2058	*/
2059	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2060	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
2061	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2062	bool fGdt = pCmd->pszCmd[1] == 'g';
2063	bool fAll = pCmd->pszCmd[2] == 'a';
2064	RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
2065
2066	DBGCVAR Var;
2067	if (!cArgs)
2068	{
2069	cArgs = 1;
2070	paArgs = &Var;
2071	Var.enmType = DBGCVAR_TYPE_NUMBER;
2072	Var.u.u64Number = 0;
2073	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2074	Var.u64Range = 1024;
2075	}
2076
2077	/*
2078	* Process the arguments.
2079	*/
2080	for (unsigned i = 0; i < cArgs; i++)
2081	{
2082	/*
2083	* Retrieve the selector value from the argument.
2084	* The parser may confuse pointers and numbers if more than one
2085	* argument is given, that that into account.
2086	*/
2087	/* check that what we got makes sense as we don't trust the parser yet. */
2088	if ( paArgs[i].enmType != DBGCVAR_TYPE_NUMBER
2089	&& !DBGCVAR_ISPOINTER(paArgs[i].enmType))
2090	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number or pointer type but %d.\n", i, paArgs[i].enmType);
2091	uint64_t u64;
2092	unsigned cSels = 1;
2093	switch (paArgs[i].enmType)
2094	{
2095	case DBGCVAR_TYPE_NUMBER:
2096	u64 = paArgs[i].u.u64Number;
2097	if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2098	cSels = RT_MIN(paArgs[i].u64Range, 1024);
2099	break;
2100	case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2101	case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2102	case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2103	case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2104	case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2105	default: u64 = _64K; break;
2106	}
2107	if (u64 < _64K)
2108	{
2109	unsigned Sel = (RTSEL)u64;
2110
2111	/*
2112	* Dump the specified range.
2113	*/
2114	bool fSingle = cSels == 1;
2115	while ( cSels-- > 0
2116	&& Sel < _64K)
2117	{
2118	DBGFSELINFO SelInfo;
2119	int rc = DBGFR3SelQueryInfo(pVM, pDbgc->idCpu, Sel \| SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2120	if (RT_SUCCESS(rc))
2121	{
2122	if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2123	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x RealM Bas=%04x Lim=%04x\n",
2124	Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2125	else if ( fAll
2126	\|\| fSingle
2127	\|\| SelInfo.u.Raw.Gen.u1Present)
2128	{
2129	if (enmMode == CPUMMODE_PROTECTED)
2130	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2131	else
2132	{
2133	bool fDblSkip = false;
2134	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2135	if (fDblSkip)
2136	Sel += 4;
2137	}
2138	}
2139	}
2140	else
2141	{
2142	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %Rrc\n", Sel, rc);
2143	if (!fAll)
2144	return rc;
2145	}
2146	if (RT_FAILURE(rc))
2147	return rc;
2148
2149	/* next */
2150	Sel += 8;
2151	}
2152	}
2153	else
2154	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds\n", u64);
2155	}
2156
2157	NOREF(pResult);
2158	return VINF_SUCCESS;
2159	}
2160
2161
2162	/**
2163	* The 'di' and 'dia' commands.
2164	*
2165	* @returns VBox status.
2166	* @param pCmd Pointer to the command descriptor (as registered).
2167	* @param pCmdHlp Pointer to command helper functions.
2168	* @param pVM Pointer to the current VM (if any).
2169	* @param paArgs Pointer to (readonly) array of arguments.
2170	* @param cArgs Number of arguments in the array.
2171	*/
2172	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2173	{
2174	/*
2175	* Validate input.
2176	*/
2177	if (!pVM)
2178	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2179
2180	/*
2181	* Establish some stuff like the current IDTR and CPU mode,
2182	* and fix a default parameter.
2183	*/
2184	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2185	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
2186	uint16_t cbLimit;
2187	RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2188	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2189	unsigned cbEntry;
2190	switch (enmMode)
2191	{
2192	case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2193	case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2194	case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2195	default:
2196	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid CPU mode %d.\n", enmMode);
2197	}
2198
2199	bool fAll = pCmd->pszCmd[2] == 'a';
2200	DBGCVAR Var;
2201	if (!cArgs)
2202	{
2203	cArgs = 1;
2204	paArgs = &Var;
2205	Var.enmType = DBGCVAR_TYPE_NUMBER;
2206	Var.u.u64Number = 0;
2207	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2208	Var.u64Range = 256;
2209	}
2210
2211	/*
2212	* Process the arguments.
2213	*/
2214	for (unsigned i = 0; i < cArgs; i++)
2215	{
2216	/* check that what we got makes sense as we don't trust the parser yet. */
2217	if (paArgs[i].enmType != DBGCVAR_TYPE_NUMBER)
2218	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number type but %d.\n", i, paArgs[i].enmType);
2219	if (paArgs[i].u.u64Number < 256)
2220	{
2221	RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2222	unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2223	? paArgs[i].u64Range
2224	: 1;
2225	bool fSingle = cInts == 1;
2226	while ( cInts-- > 0
2227	&& iInt < 256)
2228	{
2229	/*
2230	* Try read it.
2231	*/
2232	union
2233	{
2234	RTFAR16 Real;
2235	X86DESC Prot;
2236	X86DESC64 Long;
2237	} u;
2238	if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2239	{
2240	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x not within the IDT\n", (unsigned)iInt);
2241	if (!fAll && !fSingle)
2242	return VINF_SUCCESS;
2243	}
2244	DBGCVAR AddrVar;
2245	AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2246	AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2247	AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2248	int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &u, cbEntry, &AddrVar, NULL);
2249	if (RT_FAILURE(rc))
2250	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2251
2252	/*
2253	* Display it.
2254	*/
2255	switch (enmMode)
2256	{
2257	case CPUMMODE_REAL:
2258	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2259	/** @todo resolve 16:16 IDTE to a symbol */
2260	break;
2261	case CPUMMODE_PROTECTED:
2262	if (fAll \|\| fSingle \|\| u.Prot.Gen.u1Present)
2263	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2264	break;
2265	case CPUMMODE_LONG:
2266	if (fAll \|\| fSingle \|\| u.Long.Gen.u1Present)
2267	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2268	break;
2269	default: break; /* to shut up gcc */
2270	}
2271	if (RT_FAILURE(rc))
2272	return rc;
2273
2274	/* next */
2275	iInt++;
2276	}
2277	}
2278	else
2279	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2280	}
2281
2282	NOREF(pResult);
2283	return VINF_SUCCESS;
2284	}
2285
2286
2287	/**
2288	* The 'da', 'dq', 'dd', 'dw' and 'db' commands.
2289	*
2290	* @returns VBox status.
2291	* @param pCmd Pointer to the command descriptor (as registered).
2292	* @param pCmdHlp Pointer to command helper functions.
2293	* @param pVM Pointer to the current VM (if any).
2294	* @param paArgs Pointer to (readonly) array of arguments.
2295	* @param cArgs Number of arguments in the array.
2296	*/
2297	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2298	{
2299	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2300
2301	/*
2302	* Validate input.
2303	*/
2304	if ( cArgs > 1
2305	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2306	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2307	if (!pVM)
2308	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2309
2310	/*
2311	* Figure out the element size.
2312	*/
2313	unsigned cbElement;
2314	bool fAscii = false;
2315	switch (pCmd->pszCmd[1])
2316	{
2317	default:
2318	case 'b': cbElement = 1; break;
2319	case 'w': cbElement = 2; break;
2320	case 'd': cbElement = 4; break;
2321	case 'q': cbElement = 8; break;
2322	case 'a':
2323	cbElement = 1;
2324	fAscii = true;
2325	break;
2326	case '\0':
2327	fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2328	cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2329	if (!cbElement)
2330	cbElement = 1;
2331	break;
2332	}
2333
2334	/*
2335	* Find address.
2336	*/
2337	if (!cArgs)
2338	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2339	else
2340	pDbgc->DumpPos = paArgs[0];
2341
2342	/*
2343	* Range.
2344	*/
2345	switch (pDbgc->DumpPos.enmRangeType)
2346	{
2347	case DBGCVAR_RANGE_NONE:
2348	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2349	pDbgc->DumpPos.u64Range = 0x60;
2350	break;
2351
2352	case DBGCVAR_RANGE_ELEMENTS:
2353	if (pDbgc->DumpPos.u64Range > 2048)
2354	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many elements requested. Max is 2048 elements.\n");
2355	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2356	pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2357	break;
2358
2359	case DBGCVAR_RANGE_BYTES:
2360	if (pDbgc->DumpPos.u64Range > 65536)
2361	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
2362	break;
2363
2364	default:
2365	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2366	}
2367
2368	pDbgc->pLastPos = &pDbgc->DumpPos;
2369
2370	/*
2371	* Do the dumping.
2372	*/
2373	pDbgc->cbDumpElement = cbElement \| (fAscii << 31);
2374	int cbLeft = (int)pDbgc->DumpPos.u64Range;
2375	uint8_t u8Prev = '\0';
2376	for (;;)
2377	{
2378	/*
2379	* Read memory.
2380	*/
2381	char achBuffer[16];
2382	size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2383	size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2384	int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2385	if (RT_FAILURE(rc))
2386	{
2387	if (u8Prev && u8Prev != '\n')
2388	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2389	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2390	}
2391
2392	/*
2393	* Display it.
2394	*/
2395	memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2396	if (!fAscii)
2397	{
2398	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:", &pDbgc->DumpPos);
2399	unsigned i;
2400	for (i = 0; i < cb; i += cbElement)
2401	{
2402	const char *pszSpace = " ";
2403	if (cbElement <= 2 && i == 8 && !fAscii)
2404	pszSpace = "-";
2405	switch (cbElement)
2406	{
2407	case 1: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%02x", pszSpace, (uint8_t )&achBuffer[i]); break;
2408	case 2: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%04x", pszSpace, (uint16_t )&achBuffer[i]); break;
2409	case 4: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%08x", pszSpace, (uint32_t )&achBuffer[i]); break;
2410	case 8: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%016llx", pszSpace, (uint64_t )&achBuffer[i]); break;
2411	}
2412	}
2413
2414	/* chars column */
2415	if (pDbgc->cbDumpElement == 1)
2416	{
2417	while (i++ < sizeof(achBuffer))
2418	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2419	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2420	for (i = 0; i < cb; i += cbElement)
2421	{
2422	uint8_t u8 = (uint8_t )&achBuffer[i];
2423	if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2424	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2425	else
2426	pCmdHlp->pfnPrintf(pCmdHlp, NULL, ".");
2427	}
2428	}
2429	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2430	}
2431	else
2432	{
2433	/*
2434	* We print up to the first zero and stop there.
2435	* Only printables + '\t' and '\n' are printed.
2436	*/
2437	if (!u8Prev)
2438	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DumpPos);
2439	uint8_t u8 = '\0';
2440	unsigned i;
2441	for (i = 0; i < cb; i++)
2442	{
2443	u8Prev = u8;
2444	u8 = (uint8_t )&achBuffer[i];
2445	if ( u8 < 127
2446	&& ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2447	\|\| u8 == '\t'
2448	\|\| u8 == '\n'))
2449	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2450	else if (!u8)
2451	break;
2452	else
2453	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\\x%x", u8);
2454	}
2455	if (u8 == '\0')
2456	cb = cbLeft = i + 1;
2457	if (cbLeft - cb <= 0 && u8Prev != '\n')
2458	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2459	}
2460
2461	/*
2462	* Advance
2463	*/
2464	cbLeft -= (int)cb;
2465	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2466	if (RT_FAILURE(rc))
2467	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2468	if (cbLeft <= 0)
2469	break;
2470	}
2471
2472	NOREF(pCmd); NOREF(pResult);
2473	return VINF_SUCCESS;
2474	}
2475
2476
2477	/**
2478	* Best guess at which paging mode currently applies to the guest
2479	* paging structures.
2480	*
2481	* This have to come up with a decent answer even when the guest
2482	* is in non-paged protected mode or real mode.
2483	*
2484	* @returns cr3.
2485	* @param pDbgc The DBGC instance.
2486	* @param pfPAE Where to store the page address extension indicator.
2487	* @param pfLME Where to store the long mode enabled indicator.
2488	* @param pfPSE Where to store the page size extension indicator.
2489	* @param pfPGE Where to store the page global enabled indicator.
2490	* @param pfNXE Where to store the no-execution enabled indicator.
2491	*/
2492	static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2493	{
2494	PVMCPU pVCpu = VMMGetCpuById(pDbgc->pVM, pDbgc->idCpu);
2495	RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2496	*pfPSE = !!(cr4 & X86_CR4_PSE);
2497	*pfPGE = !!(cr4 & X86_CR4_PGE);
2498	if (cr4 & X86_CR4_PAE)
2499	{
2500	*pfPSE = true;
2501	*pfPAE = true;
2502	}
2503	else
2504	*pfPAE = false;
2505
2506	*pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2507	pfNXE = false; / GUEST64 GUESTNX */
2508	return CPUMGetGuestCR3(pVCpu);
2509	}
2510
2511
2512	/**
2513	* Determine the shadow paging mode.
2514	*
2515	* @returns cr3.
2516	* @param pDbgc The DBGC instance.
2517	* @param pfPAE Where to store the page address extension indicator.
2518	* @param pfLME Where to store the long mode enabled indicator.
2519	* @param pfPSE Where to store the page size extension indicator.
2520	* @param pfPGE Where to store the page global enabled indicator.
2521	* @param pfNXE Where to store the no-execution enabled indicator.
2522	*/
2523	static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2524	{
2525	PVMCPU pVCpu = VMMGetCpuById(pDbgc->pVM, pDbgc->idCpu);
2526
2527	*pfPSE = true;
2528	*pfPGE = false;
2529	switch (PGMGetShadowMode(pVCpu))
2530	{
2531	default:
2532	case PGMMODE_32_BIT:
2533	pfPAE = pfLME = *pfNXE = false;
2534	break;
2535	case PGMMODE_PAE:
2536	pfLME = pfNXE = false;
2537	*pfPAE = true;
2538	break;
2539	case PGMMODE_PAE_NX:
2540	*pfLME = false;
2541	pfPAE = pfNXE = true;
2542	break;
2543	case PGMMODE_AMD64:
2544	*pfNXE = false;
2545	pfPAE = pfLME = true;
2546	break;
2547	case PGMMODE_AMD64_NX:
2548	pfPAE = pfLME = *pfNXE = true;
2549	break;
2550	}
2551	return PGMGetHyperCR3(pVCpu);
2552	}
2553
2554
2555	/**
2556	* The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh' commands.
2557	*
2558	* @returns VBox status.
2559	* @param pCmd Pointer to the command descriptor (as registered).
2560	* @param pCmdHlp Pointer to command helper functions.
2561	* @param pVM Pointer to the current VM (if any).
2562	* @param paArgs Pointer to (readonly) array of arguments.
2563	* @param cArgs Number of arguments in the array.
2564	*/
2565	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2566	{
2567	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2568
2569	/*
2570	* Validate input.
2571	*/
2572	if ( cArgs > 1
2573	\|\| (cArgs == 1 && pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2574	\|\| (cArgs == 1 && pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2575	)
2576	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2577	if (!pVM)
2578	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2579
2580	/*
2581	* Guest or shadow page directories? Get the paging parameters.
2582	*/
2583	bool fGuest = pCmd->pszCmd[3] != 'h';
2584	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2585	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2586	? pDbgc->fRegCtxGuest
2587	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2588
2589	bool fPAE, fLME, fPSE, fPGE, fNXE;
2590	uint64_t cr3 = fGuest
2591	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2592	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2593	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2594
2595	/*
2596	* Setup default argument if none was specified.
2597	* Fix address / index confusion.
2598	*/
2599	DBGCVAR VarDefault;
2600	if (!cArgs)
2601	{
2602	if (pCmd->pszCmd[3] == 'a')
2603	{
2604	if (fLME \|\| fPAE)
2605	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");
2606	if (fGuest)
2607	DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2608	else
2609	DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2610	}
2611	else
2612	DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2613	paArgs = &VarDefault;
2614	cArgs = 1;
2615	}
2616	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2617	{
2618	Assert(pCmd->pszCmd[3] != 'a');
2619	VarDefault = paArgs[0];
2620	if (VarDefault.u.u64Number <= 1024)
2621	{
2622	if (fPAE)
2623	return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2624	if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2625	return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2626	VarDefault.u.u64Number <<= X86_PD_SHIFT;
2627	}
2628	VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2629	paArgs = &VarDefault;
2630	}
2631
2632	/*
2633	* Locate the PDE to start displaying at.
2634	*
2635	* The 'dpda' command takes the address of a PDE, while the others are guest
2636	* virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2637	* while the others require us to do all the tedious walking thru the paging
2638	* hierarchy to find the intended PDE.
2639	*/
2640	unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2641	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2642	DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2643	unsigned cEntries; /* The number of entries to display. */
2644	unsigned cEntriesMax; /* The max number of entries to display. */
2645	int rc;
2646	if (pCmd->pszCmd[3] == 'a')
2647	{
2648	VarPDEAddr = paArgs[0];
2649	switch (VarPDEAddr.enmRangeType)
2650	{
2651	case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2652	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2653	default: cEntries = 10; break;
2654	}
2655	cEntriesMax = PAGE_SIZE / cbEntry;
2656	}
2657	else
2658	{
2659	/*
2660	* Determine the range.
2661	*/
2662	switch (paArgs[0].enmRangeType)
2663	{
2664	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2665	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2666	default: cEntries = 10; break;
2667	}
2668
2669	/*
2670	* Normalize the input address, it must be a flat GC address.
2671	*/
2672	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2673	if (RT_FAILURE(rc))
2674	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2675	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2676	{
2677	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2678	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2679	}
2680	if (fPAE)
2681	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2682	else
2683	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2684
2685	/*
2686	* Do the paging walk until we get to the page directory.
2687	*/
2688	DBGCVAR VarCur;
2689	if (fGuest)
2690	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2691	else
2692	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2693	if (fLME)
2694	{
2695	/* Page Map Level 4 Lookup. */
2696	/* Check if it's a valid address first? */
2697	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2698	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2699	X86PML4E Pml4e;
2700	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2701	if (RT_FAILURE(rc))
2702	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2703	if (!Pml4e.n.u1Present)
2704	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2705
2706	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2707	Assert(fPAE);
2708	}
2709	if (fPAE)
2710	{
2711	/* Page directory pointer table. */
2712	X86PDPE Pdpe;
2713	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2714	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2715	if (RT_FAILURE(rc))
2716	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2717	if (!Pdpe.n.u1Present)
2718	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2719
2720	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2721	VarPDEAddr = VarCur;
2722	VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2723	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2724	}
2725	else
2726	{
2727	/* 32-bit legacy - CR3 == page directory. */
2728	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2729	VarPDEAddr = VarCur;
2730	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2731	}
2732	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2733	iEntry /= cbEntry;
2734	}
2735
2736	/* adjust cEntries */
2737	cEntries = RT_MAX(1, cEntries);
2738	cEntries = RT_MIN(cEntries, cEntriesMax);
2739
2740	/*
2741	* The display loop.
2742	*/
2743	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2744	&VarPDEAddr, iEntry);
2745	do
2746	{
2747	/*
2748	* Read.
2749	*/
2750	X86PDEPAE Pde;
2751	Pde.u = 0;
2752	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, cbEntry, &VarPDEAddr, NULL);
2753	if (RT_FAILURE(rc))
2754	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2755
2756	/*
2757	* Display.
2758	*/
2759	if (iEntry != ~0U)
2760	{
2761	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2762	iEntry++;
2763	}
2764	if (fPSE && Pde.b.u1Size)
2765	DBGCCmdHlpPrintf(pCmdHlp,
2766	fPAE
2767	? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2768	: "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2769	Pde.u,
2770	Pde.u & X86_PDE_PAE_PG_MASK,
2771	Pde.b.u1Present ? "p " : "np",
2772	Pde.b.u1Write ? "w" : "r",
2773	Pde.b.u1User ? "u" : "s",
2774	Pde.b.u1Accessed ? "a " : "na",
2775	Pde.b.u1Dirty ? "d " : "nd",
2776	Pde.b.u3Available,
2777	Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2778	Pde.b.u1WriteThru ? "pwt" : " ",
2779	Pde.b.u1CacheDisable ? "pcd" : " ",
2780	Pde.b.u1PAT ? "pat" : "",
2781	Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2782	else
2783	DBGCCmdHlpPrintf(pCmdHlp,
2784	fPAE
2785	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2786	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2787	Pde.u,
2788	Pde.u & X86_PDE_PAE_PG_MASK,
2789	Pde.n.u1Present ? "p " : "np",
2790	Pde.n.u1Write ? "w" : "r",
2791	Pde.n.u1User ? "u" : "s",
2792	Pde.n.u1Accessed ? "a " : "na",
2793	Pde.u & RT_BIT(6) ? "6 " : " ",
2794	Pde.n.u3Available,
2795	Pde.u & RT_BIT(8) ? "8" : " ",
2796	Pde.n.u1WriteThru ? "pwt" : " ",
2797	Pde.n.u1CacheDisable ? "pcd" : " ",
2798	Pde.u & RT_BIT(7) ? "7" : "",
2799	Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2800	if (Pde.u & UINT64_C(0x7fff000000000000))
2801	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2802	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2803	if (RT_FAILURE(rc))
2804	return rc;
2805
2806	/*
2807	* Advance.
2808	*/
2809	VarPDEAddr.u.u64Number += cbEntry;
2810	if (iEntry != ~0U)
2811	VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2812	} while (cEntries-- > 0);
2813
2814	NOREF(pResult);
2815	return VINF_SUCCESS;
2816	}
2817
2818
2819	/**
2820	* The 'dpdb' command.
2821	*
2822	* @returns VBox status.
2823	* @param pCmd Pointer to the command descriptor (as registered).
2824	* @param pCmdHlp Pointer to command helper functions.
2825	* @param pVM Pointer to the current VM (if any).
2826	* @param paArgs Pointer to (readonly) array of arguments.
2827	* @param cArgs Number of arguments in the array.
2828	*/
2829	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2830	{
2831	if (!pVM)
2832	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2833	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2834	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2835	if (RT_FAILURE(rc1))
2836	return rc1;
2837	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
2838	return rc2;
2839	}
2840
2841
2842	/**
2843	* The 'dph*' commands and main part of 'm'.
2844	*
2845	* @returns VBox status.
2846	* @param pCmd Pointer to the command descriptor (as registered).
2847	* @param pCmdHlp Pointer to command helper functions.
2848	* @param pVM Pointer to the current VM (if any).
2849	* @param paArgs Pointer to (readonly) array of arguments.
2850	* @param cArgs Number of arguments in the array.
2851	*/
2852	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2853	{
2854	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2855	if (!pVM)
2856	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
2857
2858	/*
2859	* Figure the context and base flags.
2860	*/
2861	uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO \| DBGFPGDMP_FLAGS_PRINT_CR3;
2862	if (pCmd->pszCmd[0] == 'm')
2863	fFlags \|= DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW;
2864	else if (pCmd->pszCmd[3] == '\0')
2865	fFlags \|= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2866	else if (pCmd->pszCmd[3] == 'g')
2867	fFlags \|= DBGFPGDMP_FLAGS_GUEST;
2868	else if (pCmd->pszCmd[3] == 'h')
2869	fFlags \|= DBGFPGDMP_FLAGS_SHADOW;
2870	else
2871	AssertFailed();
2872
2873	if (pDbgc->cPagingHierarchyDumps == 0)
2874	fFlags \|= DBGFPGDMP_FLAGS_HEADER;
2875	pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2876
2877	/*
2878	* Get the range.
2879	*/
2880	PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2881	RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2882	int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2883	if (RT_FAILURE(rc))
2884	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2885
2886	uint64_t cbRange;
2887	rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2888	if (RT_FAILURE(rc))
2889	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2890
2891	RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2892	if (cbRange >= GCPtrLast)
2893	GCPtrLast = RTGCPTR_MAX;
2894	else if (!cbRange)
2895	GCPtrLast = GCPtrFirst;
2896	else
2897	GCPtrLast = GCPtrFirst + cbRange - 1;
2898
2899	/*
2900	* Do we have a CR3?
2901	*/
2902	uint64_t cr3 = 0;
2903	if (cArgs > 1)
2904	{
2905	if ((fFlags & (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW))
2906	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2907	if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2908	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2909	cr3 = paArgs[1].u.u64Number;
2910	}
2911	else
2912	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_CR3;
2913
2914	/*
2915	* Do we have a mode?
2916	*/
2917	if (cArgs > 2)
2918	{
2919	if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2920	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2921	static const struct MODETOFLAGS
2922	{
2923	const char *pszName;
2924	uint32_t fFlags;
2925	} s_aModeToFlags[] =
2926	{
2927	{ "ept", DBGFPGDMP_FLAGS_EPT },
2928	{ "legacy", 0 },
2929	{ "legacy-np", DBGFPGDMP_FLAGS_NP },
2930	{ "pse", DBGFPGDMP_FLAGS_PSE },
2931	{ "pse-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_NP },
2932	{ "pae", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE },
2933	{ "pae-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NP },
2934	{ "pae-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE },
2935	{ "pae-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP },
2936	{ "long", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME },
2937	{ "long-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NP },
2938	{ "long-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE },
2939	{ "long-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP }
2940	};
2941	int i = RT_ELEMENTS(s_aModeToFlags);
2942	while (i-- > 0)
2943	if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2944	{
2945	fFlags \|= s_aModeToFlags[i].fFlags;
2946	break;
2947	}
2948	if (i < 0)
2949	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2950	}
2951	else
2952	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_MODE;
2953
2954	/*
2955	* Call the worker.
2956	*/
2957	rc = DBGFR3PagingDumpEx(pVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /cMaxDepth/,
2958	DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2959	if (RT_FAILURE(rc))
2960	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2961	return VINF_SUCCESS;
2962	}
2963
2964
2965
2966	/**
2967	* The 'dpg*' commands.
2968	*
2969	* @returns VBox status.
2970	* @param pCmd Pointer to the command descriptor (as registered).
2971	* @param pCmdHlp Pointer to command helper functions.
2972	* @param pVM Pointer to the current VM (if any).
2973	* @param paArgs Pointer to (readonly) array of arguments.
2974	* @param cArgs Number of arguments in the array.
2975	*/
2976	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2977	{
2978	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2979
2980	/*
2981	* Validate input.
2982	*/
2983	if ( cArgs != 1
2984	\|\| (pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2985	\|\| (pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2986	)
2987	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2988	if (!pVM)
2989	return DBGCCmdHlpPrintf(pCmdHlp, "error: No VM.\n");
2990
2991	/*
2992	* Guest or shadow page tables? Get the paging parameters.
2993	*/
2994	bool fGuest = pCmd->pszCmd[3] != 'h';
2995	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2996	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2997	? pDbgc->fRegCtxGuest
2998	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2999
3000	bool fPAE, fLME, fPSE, fPGE, fNXE;
3001	uint64_t cr3 = fGuest
3002	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
3003	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
3004	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
3005
3006	/*
3007	* Locate the PTE to start displaying at.
3008	*
3009	* The 'dpta' command takes the address of a PTE, while the others are guest
3010	* virtual address which PTEs should be displayed. So, 'pdta' is rather simple
3011	* while the others require us to do all the tedious walking thru the paging
3012	* hierarchy to find the intended PTE.
3013	*/
3014	unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
3015	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
3016	DBGCVAR VarPTEAddr; /* The address of the current PTE. */
3017	unsigned cEntries; /* The number of entries to display. */
3018	unsigned cEntriesMax; /* The max number of entries to display. */
3019	int rc;
3020	if (pCmd->pszCmd[3] == 'a')
3021	{
3022	VarPTEAddr = paArgs[0];
3023	switch (VarPTEAddr.enmRangeType)
3024	{
3025	case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
3026	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
3027	default: cEntries = 10; break;
3028	}
3029	cEntriesMax = PAGE_SIZE / cbEntry;
3030	}
3031	else
3032	{
3033	/*
3034	* Determine the range.
3035	*/
3036	switch (paArgs[0].enmRangeType)
3037	{
3038	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
3039	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
3040	default: cEntries = 10; break;
3041	}
3042
3043	/*
3044	* Normalize the input address, it must be a flat GC address.
3045	*/
3046	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
3047	if (RT_FAILURE(rc))
3048	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3049	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
3050	{
3051	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
3052	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
3053	}
3054	VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
3055
3056	/*
3057	* Do the paging walk until we get to the page table.
3058	*/
3059	DBGCVAR VarCur;
3060	if (fGuest)
3061	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
3062	else
3063	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
3064	if (fLME)
3065	{
3066	/* Page Map Level 4 Lookup. */
3067	/* Check if it's a valid address first? */
3068	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
3069	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
3070	X86PML4E Pml4e;
3071	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
3072	if (RT_FAILURE(rc))
3073	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
3074	if (!Pml4e.n.u1Present)
3075	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
3076
3077	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
3078	Assert(fPAE);
3079	}
3080	if (fPAE)
3081	{
3082	/* Page directory pointer table. */
3083	X86PDPE Pdpe;
3084	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
3085	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
3086	if (RT_FAILURE(rc))
3087	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
3088	if (!Pdpe.n.u1Present)
3089	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
3090
3091	VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
3092
3093	/* Page directory (PAE). */
3094	X86PDEPAE Pde;
3095	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
3096	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
3097	if (RT_FAILURE(rc))
3098	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3099	if (!Pde.n.u1Present)
3100	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3101	if (fPSE && Pde.n.u1Size)
3102	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3103
3104	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
3105	VarPTEAddr = VarCur;
3106	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
3107	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
3108	}
3109	else
3110	{
3111	/* Page directory (legacy). */
3112	X86PDE Pde;
3113	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
3114	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
3115	if (RT_FAILURE(rc))
3116	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3117	if (!Pde.n.u1Present)
3118	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3119	if (fPSE && Pde.n.u1Size)
3120	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3121
3122	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
3123	VarPTEAddr = VarCur;
3124	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
3125	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
3126	}
3127	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
3128	iEntry /= cbEntry;
3129	}
3130
3131	/* adjust cEntries */
3132	cEntries = RT_MAX(1, cEntries);
3133	cEntries = RT_MIN(cEntries, cEntriesMax);
3134
3135	/*
3136	* The display loop.
3137	*/
3138	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3139	&VarPTEAddr, &VarGCPtr, iEntry);
3140	do
3141	{
3142	/*
3143	* Read.
3144	*/
3145	X86PTEPAE Pte;
3146	Pte.u = 0;
3147	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pte, cbEntry, &VarPTEAddr, NULL);
3148	if (RT_FAILURE(rc))
3149	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3150
3151	/*
3152	* Display.
3153	*/
3154	if (iEntry != ~0U)
3155	{
3156	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3157	iEntry++;
3158	}
3159	DBGCCmdHlpPrintf(pCmdHlp,
3160	fPAE
3161	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3162	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3163	Pte.u,
3164	Pte.u & X86_PTE_PAE_PG_MASK,
3165	Pte.n.u1Present ? "p " : "np",
3166	Pte.n.u1Write ? "w" : "r",
3167	Pte.n.u1User ? "u" : "s",
3168	Pte.n.u1Accessed ? "a " : "na",
3169	Pte.n.u1Dirty ? "d " : "nd",
3170	Pte.n.u3Available,
3171	Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3172	Pte.n.u1WriteThru ? "pwt" : " ",
3173	Pte.n.u1CacheDisable ? "pcd" : " ",
3174	Pte.n.u1PAT ? "pat" : " ",
3175	Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3176	);
3177	if (Pte.u & UINT64_C(0x7fff000000000000))
3178	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3179	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3180	if (RT_FAILURE(rc))
3181	return rc;
3182
3183	/*
3184	* Advance.
3185	*/
3186	VarPTEAddr.u.u64Number += cbEntry;
3187	if (iEntry != ~0U)
3188	VarGCPtr.u.GCFlat += PAGE_SIZE;
3189	} while (cEntries-- > 0);
3190
3191	NOREF(pResult);
3192	return VINF_SUCCESS;
3193	}
3194
3195
3196	/**
3197	* The 'dptb' command.
3198	*
3199	* @returns VBox status.
3200	* @param pCmd Pointer to the command descriptor (as registered).
3201	* @param pCmdHlp Pointer to command helper functions.
3202	* @param pVM Pointer to the current VM (if any).
3203	* @param paArgs Pointer to (readonly) array of arguments.
3204	* @param cArgs Number of arguments in the array.
3205	*/
3206	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3207	{
3208	if (!pVM)
3209	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
3210	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3211	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3212	if (RT_FAILURE(rc1))
3213	return rc1;
3214	NOREF(pCmd); NOREF(cArgs); NOREF(pResult);
3215	return rc2;
3216	}
3217
3218
3219	/**
3220	* The 'dt' command.
3221	*
3222	* @returns VBox status.
3223	* @param pCmd Pointer to the command descriptor (as registered).
3224	* @param pCmdHlp Pointer to command helper functions.
3225	* @param pVM Pointer to the current VM (if any).
3226	* @param paArgs Pointer to (readonly) array of arguments.
3227	* @param cArgs Number of arguments in the array.
3228	*/
3229	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
3230	{
3231	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3232	int rc;
3233
3234	if (!pVM)
3235	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
3236	if ( cArgs > 1
3237	\|\| (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_STRING)
3238	\|\| (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL))
3239	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet...\n");
3240
3241	/*
3242	* Check if the command indicates the type.
3243	*/
3244	enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3245	if (!strcmp(pCmd->pszCmd, "dt16"))
3246	enmTssType = kTss16;
3247	else if (!strcmp(pCmd->pszCmd, "dt32"))
3248	enmTssType = kTss32;
3249	else if (!strcmp(pCmd->pszCmd, "dt64"))
3250	enmTssType = kTss64;
3251
3252	/*
3253	* We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3254	*/
3255	uint32_t SelTss = UINT32_MAX;
3256	DBGCVAR VarTssAddr;
3257	if (cArgs == 0)
3258	{
3259	/** @todo consider querying the hidden bits instead (missing API). */
3260	uint16_t SelTR;
3261	rc = DBGFR3RegCpuQueryU16(pVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3262	if (RT_FAILURE(rc))
3263	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3264	DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3265	SelTss = SelTR;
3266	}
3267	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3268	{
3269	if (paArgs[0].u.u64Number < 0xffff)
3270	DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3271	else
3272	{
3273	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3274	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3275	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3276	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3277	{
3278	VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3279	VarTssAddr.u64Range = paArgs[0].u64Range;
3280	}
3281	}
3282	}
3283	else
3284	VarTssAddr = paArgs[0];
3285
3286	/*
3287	* Deal with TSS:ign by means of the GDT.
3288	*/
3289	if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3290	{
3291	SelTss = VarTssAddr.u.GCFar.sel;
3292	DBGFSELINFO SelInfo;
3293	rc = DBGFR3SelQueryInfo(pVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3294	if (RT_FAILURE(rc))
3295	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3296	pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3297
3298	if (SelInfo.u.Raw.Gen.u1DescType)
3299	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3300
3301	switch (SelInfo.u.Raw.Gen.u4Type)
3302	{
3303	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3304	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3305	if (enmTssType == kTssToBeDetermined)
3306	enmTssType = kTss16;
3307	break;
3308
3309	case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3310	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3311	if (enmTssType == kTssToBeDetermined)
3312	enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3313	break;
3314
3315	default:
3316	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3317	VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3318	}
3319
3320	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3321	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3322	}
3323
3324	/*
3325	* Determine the TSS type if none is currently given.
3326	*/
3327	if (enmTssType == kTssToBeDetermined)
3328	{
3329	if ( VarTssAddr.u64Range > 0
3330	&& VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3331	enmTssType = kTss16;
3332	else
3333	{
3334	uint64_t uEfer;
3335	rc = DBGFR3RegCpuQueryU64(pVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3336	if ( RT_FAILURE(rc)
3337	\|\| !(uEfer & MSR_K6_EFER_LMA) )
3338	enmTssType = kTss32;
3339	else
3340	enmTssType = kTss64;
3341	}
3342	}
3343
3344	/*
3345	* Figure the min/max sizes.
3346	* ASSUMES max TSS size is 64 KB.
3347	*/
3348	uint32_t cbTssMin;
3349	uint32_t cbTssMax;
3350	switch (enmTssType)
3351	{
3352	case kTss16:
3353	cbTssMin = cbTssMax = sizeof(X86TSS16);
3354	break;
3355	case kTss32:
3356	cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3357	cbTssMax = _64K;
3358	break;
3359	case kTss64:
3360	cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3361	cbTssMax = _64K;
3362	break;
3363	default:
3364	AssertFailedReturn(VERR_INTERNAL_ERROR);
3365	}
3366	uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3367	if (cbTss == 0)
3368	cbTss = cbTssMin;
3369	else if (cbTss < cbTssMin)
3370	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3371	cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3372	else if (cbTss > cbTssMax)
3373	cbTss = cbTssMax;
3374	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3375
3376	/*
3377	* Read the TSS into a temporary buffer.
3378	*/
3379	uint8_t abBuf[_64K];
3380	size_t cbTssRead;
3381	rc = DBGCCmdHlpMemRead(pCmdHlp, pVM, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3382	if (RT_FAILURE(rc))
3383	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3384	if (cbTssRead < cbTssMin)
3385	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3386	cbTssRead, cbTssMin);
3387	if (cbTssRead < cbTss)
3388	memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3389
3390
3391	/*
3392	* Format the TSS.
3393	*/
3394	uint16_t offIoBitmap;
3395	switch (enmTssType)
3396	{
3397	case kTss16:
3398	{
3399	PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3400	if (SelTss != UINT32_MAX)
3401	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3402	else
3403	DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3404	DBGCCmdHlpPrintf(pCmdHlp,
3405	"ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3406	"ip=%04x sp=%04x bp=%04x\n"
3407	"cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3408	"ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3409	"prev=%04x ldtr=%04x\n"
3410	,
3411	pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3412	pTss->ip, pTss->sp, pTss->bp,
3413	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3414	pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3415	pTss->selPrev, pTss->selLdt);
3416	if (pTss->cs != 0)
3417	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3418	offIoBitmap = 0;
3419	break;
3420	}
3421
3422	case kTss32:
3423	{
3424	PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3425	if (SelTss != UINT32_MAX)
3426	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3427	else
3428	DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3429	DBGCCmdHlpPrintf(pCmdHlp,
3430	"eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3431	"eip=%08x esp=%08x ebp=%08x\n"
3432	"cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3433	"ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3434	"prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3435	,
3436	pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3437	pTss->eip, pTss->esp, pTss->ebp,
3438	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3439	pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3440	pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3441	if (pTss->cs != 0)
3442	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3443	offIoBitmap = pTss->offIoBitmap;
3444	break;
3445	}
3446
3447	case kTss64:
3448	{
3449	PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3450	if (SelTss != UINT32_MAX)
3451	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3452	else
3453	DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3454	DBGCCmdHlpPrintf(pCmdHlp,
3455	"rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3456	"ist1=%016RX16 ist2=%016RX16\n"
3457	"ist3=%016RX16 ist4=%016RX16\n"
3458	"ist5=%016RX16 ist6=%016RX16\n"
3459	"ist7=%016RX16 iomap=%04x\n"
3460	,
3461	pTss->rsp0, pTss->rsp1, pTss->rsp2,
3462	pTss->ist1, pTss->ist2,
3463	pTss->ist3, pTss->ist4,
3464	pTss->ist5, pTss->ist6,
3465	pTss->ist7, pTss->offIoBitmap);
3466	offIoBitmap = pTss->offIoBitmap;
3467	break;
3468	}
3469
3470	default:
3471	AssertFailedReturn(VERR_INTERNAL_ERROR);
3472	}
3473
3474	/*
3475	* Dump the interrupt redirection bitmap.
3476	*/
3477	if (enmTssType != kTss16)
3478	{
3479	if ( offIoBitmap > cbTssMin
3480	&& offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3481	{
3482	if (offIoBitmap - cbTssMin >= 32)
3483	{
3484	DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3485	uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3486	uint32_t iStart = 0;
3487	bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3488	for (uint32_t i = 0; i < 256; i++)
3489	{
3490	bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3491	if (fThis != fPrev)
3492	{
3493	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3494	fPrev = fThis;
3495	iStart = i;
3496	}
3497	}
3498	if (iStart != 255)
3499	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3500	}
3501	else
3502	DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3503	offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3504	}
3505	else if (offIoBitmap > 0)
3506	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3507	else
3508	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3509	}
3510
3511	/*
3512	* Dump the I/O bitmap if present.
3513	*/
3514	if (enmTssType != kTss16)
3515	{
3516	if (offIoBitmap < cbTss)
3517	{
3518	uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3519	DBGCVAR VarAddr;
3520	DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3521	DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3522
3523	uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3524	uint32_t iStart = 0;
3525	bool fPrev = ASMBitTest(pbIoBitmap, 0);
3526	uint32_t cLine = 0;
3527	for (uint32_t i = 1; i < cPorts; i++)
3528	{
3529	bool fThis = ASMBitTest(pbIoBitmap, i);
3530	if (fThis != fPrev)
3531	{
3532	cLine++;
3533	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3534	fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3535	fPrev = fThis;
3536	iStart = i;
3537	}
3538	}
3539	if (iStart != _64K-1)
3540	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3541	}
3542	else if (offIoBitmap > 0)
3543	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3544	else
3545	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3546	}
3547
3548	return VINF_SUCCESS;
3549	}
3550
3551
3552	/**
3553	* The 'm' command.
3554	*
3555	* @returns VBox status.
3556	* @param pCmd Pointer to the command descriptor (as registered).
3557	* @param pCmdHlp Pointer to command helper functions.
3558	* @param pVM Pointer to the current VM (if any).
3559	* @param paArgs Pointer to (readonly) array of arguments.
3560	* @param cArgs Number of arguments in the array.
3561	*/
3562	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3563	{
3564	DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3565	if (!pVM)
3566	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
3567	return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
3568	}
3569
3570
3571	/**
3572	* Converts one or more variables into a byte buffer for a
3573	* given unit size.
3574	*
3575	* @returns VBox status codes:
3576	* @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3577	* @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3578	* @retval VINF_SUCCESS on success.
3579	*
3580	* @param pvBuf The buffer to convert into.
3581	* @param pcbBuf The buffer size on input. The size of the result on output.
3582	* @param cbUnit The unit size to apply when converting.
3583	* The high bit is used to indicate unicode string.
3584	* @param paVars The array of variables to convert.
3585	* @param cVars The number of variables.
3586	*/
3587	int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void pvBuf, uint32_t pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3588	{
3589	union
3590	{
3591	uint8_t *pu8;
3592	uint16_t *pu16;
3593	uint32_t *pu32;
3594	uint64_t *pu64;
3595	} u, uEnd;
3596	u.pu8 = (uint8_t *)pvBuf;
3597	uEnd.pu8 = u.pu8 + *pcbBuf;
3598
3599	unsigned i;
3600	for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3601	{
3602	switch (paVars[i].enmType)
3603	{
3604	case DBGCVAR_TYPE_GC_FAR:
3605	case DBGCVAR_TYPE_GC_FLAT:
3606	case DBGCVAR_TYPE_GC_PHYS:
3607	case DBGCVAR_TYPE_HC_FLAT:
3608	case DBGCVAR_TYPE_HC_PHYS:
3609	case DBGCVAR_TYPE_NUMBER:
3610	{
3611	uint64_t u64 = paVars[i].u.u64Number;
3612	switch (cbUnit & 0x1f)
3613	{
3614	case 1:
3615	do
3616	{
3617	*u.pu8++ = u64;
3618	u64 >>= 8;
3619	} while (u64);
3620	break;
3621	case 2:
3622	do
3623	{
3624	*u.pu16++ = u64;
3625	u64 >>= 16;
3626	} while (u64);
3627	break;
3628	case 4:
3629	*u.pu32++ = u64;
3630	u64 >>= 32;
3631	if (u64)
3632	*u.pu32++ = u64;
3633	break;
3634	case 8:
3635	*u.pu64++ = u64;
3636	break;
3637	}
3638	break;
3639	}
3640
3641	case DBGCVAR_TYPE_STRING:
3642	case DBGCVAR_TYPE_SYMBOL:
3643	{
3644	const char *psz = paVars[i].u.pszString;
3645	size_t cbString = strlen(psz);
3646	if (cbUnit & RT_BIT_32(31))
3647	{
3648	/* Explode char to unit. */
3649	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3650	{
3651	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3652	return VERR_TOO_MUCH_DATA;
3653	}
3654	while (*psz)
3655	{
3656	switch (cbUnit & 0x1f)
3657	{
3658	case 1: u.pu8++ = psz; break;
3659	case 2: u.pu16++ = psz; break;
3660	case 4: u.pu32++ = psz; break;
3661	case 8: u.pu64++ = psz; break;
3662	}
3663	psz++;
3664	}
3665	}
3666	else
3667	{
3668	/* Raw copy with zero padding if the size isn't aligned. */
3669	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3670	{
3671	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3672	return VERR_TOO_MUCH_DATA;
3673	}
3674
3675	size_t cbCopy = cbString & ~(cbUnit - 1);
3676	memcpy(u.pu8, psz, cbCopy);
3677	u.pu8 += cbCopy;
3678	psz += cbCopy;
3679
3680	size_t cbReminder = cbString & (cbUnit - 1);
3681	if (cbReminder)
3682	{
3683	memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3684	memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3685	u.pu8 += cbUnit;
3686	}
3687	}
3688	break;
3689	}
3690
3691	default:
3692	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3693	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3694	"i=%d enmType=%d\n", i, paVars[i].enmType);
3695	return VERR_INTERNAL_ERROR;
3696	}
3697	}
3698	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3699	if (i != cVars)
3700	{
3701	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3702	return VERR_TOO_MUCH_DATA;
3703	}
3704	return VINF_SUCCESS;
3705	}
3706
3707
3708	/**
3709	* The 'eb', 'ew', 'ed' and 'eq' commands.
3710	*
3711	* @returns VBox status.
3712	* @param pCmd Pointer to the command descriptor (as registered).
3713	* @param pCmdHlp Pointer to command helper functions.
3714	* @param pVM Pointer to the current VM (if any).
3715	* @param paArgs Pointer to (readonly) array of arguments.
3716	* @param cArgs Number of arguments in the array.
3717	*/
3718	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3719	{
3720	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3721	unsigned iArg;
3722
3723	/*
3724	* Validate input.
3725	*/
3726	if ( cArgs < 2
3727	\|\| !DBGCVAR_ISPOINTER(paArgs[0].enmType))
3728	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet... It might help to use the '%%' operator.\n");
3729	for (iArg = 1; iArg < cArgs; iArg++)
3730	if (paArgs[iArg].enmType != DBGCVAR_TYPE_NUMBER)
3731	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet: Arg #%u is not a number.\n", iArg);
3732	if (!pVM)
3733	return DBGCCmdHlpFail(pCmdHlp, pCmd, "error: No VM.\n");
3734
3735	/*
3736	* Figure out the element size.
3737	*/
3738	unsigned cbElement;
3739	switch (pCmd->pszCmd[1])
3740	{
3741	default:
3742	case 'b': cbElement = 1; break;
3743	case 'w': cbElement = 2; break;
3744	case 'd': cbElement = 4; break;
3745	case 'q': cbElement = 8; break;
3746	}
3747
3748	/*
3749	* Do setting.
3750	*/
3751	DBGCVAR Addr = paArgs[0];
3752	for (iArg = 1;;)
3753	{
3754	size_t cbWritten;
3755	int rc = pCmdHlp->pfnMemWrite(pCmdHlp, pVM, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3756	if (RT_FAILURE(rc))
3757	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3758	if (cbWritten != cbElement)
3759	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3760
3761	/* advance. */
3762	iArg++;
3763	if (iArg >= cArgs)
3764	break;
3765	rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3766	if (RT_FAILURE(rc))
3767	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3768	}
3769
3770	NOREF(pResult);
3771	return VINF_SUCCESS;
3772	}
3773
3774
3775	/**
3776	* Executes the search.
3777	*
3778	* @returns VBox status code.
3779	* @param pCmdHlp The command helpers.
3780	* @param pVM The VM handle.
3781	* @param pAddress The address to start searching from. (undefined on output)
3782	* @param cbRange The address range to search. Must not wrap.
3783	* @param pabBytes The byte pattern to search for.
3784	* @param cbBytes The size of the pattern.
3785	* @param cbUnit The search unit.
3786	* @param cMaxHits The max number of hits.
3787	* @param pResult Where to store the result if it's a function invocation.
3788	*/
3789	static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3790	const uint8_t *pabBytes, uint32_t cbBytes,
3791	uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3792	{
3793	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3794
3795	/*
3796	* Do the search.
3797	*/
3798	uint64_t cHits = 0;
3799	for (;;)
3800	{
3801	/* search */
3802	DBGFADDRESS HitAddress;
3803	int rc = DBGFR3MemScan(pVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3804	if (RT_FAILURE(rc))
3805	{
3806	if (rc != VERR_DBGF_MEM_NOT_FOUND)
3807	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3808
3809	/* update the current address so we can save it (later). */
3810	pAddress->off += cbRange;
3811	pAddress->FlatPtr += cbRange;
3812	cbRange = 0;
3813	break;
3814	}
3815
3816	/* report result */
3817	DBGCVAR VarCur;
3818	dbgcVarInit(&VarCur);
3819	dbgcVarSetDbgfAddr(&VarCur, &HitAddress);
3820	if (!pResult)
3821	pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3822	else
3823	dbgcVarSetDbgfAddr(pResult, &HitAddress);
3824
3825	/* advance */
3826	cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3827	*pAddress = HitAddress;
3828	pAddress->FlatPtr += cbBytes;
3829	pAddress->off += cbBytes;
3830	if (cbRange <= cbBytes)
3831	{
3832	cbRange = 0;
3833	break;
3834	}
3835	cbRange -= cbBytes;
3836
3837	if (++cHits >= cMaxHits)
3838	{
3839	/// @todo save the search.
3840	break;
3841	}
3842	}
3843
3844	/*
3845	* Save the search so we can resume it...
3846	*/
3847	if (pDbgc->abSearch != pabBytes)
3848	{
3849	memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3850	pDbgc->cbSearch = cbBytes;
3851	pDbgc->cbSearchUnit = cbUnit;
3852	}
3853	pDbgc->cMaxSearchHits = cMaxHits;
3854	pDbgc->SearchAddr = *pAddress;
3855	pDbgc->cbSearchRange = cbRange;
3856
3857	return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3858	}
3859
3860
3861	/**
3862	* Resumes the previous search.
3863	*
3864	* @returns VBox status code.
3865	* @param pCmdHlp Pointer to the command helper functions.
3866	* @param pVM Pointer to the current VM (if any).
3867	* @param pResult Where to store the result of a function invocation.
3868	*/
3869	static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGCVAR pResult)
3870	{
3871	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3872
3873	/*
3874	* Make sure there is a previous command.
3875	*/
3876	if (!pDbgc->cbSearch)
3877	{
3878	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Error: No previous search\n");
3879	return VERR_DBGC_COMMAND_FAILED;
3880	}
3881
3882	/*
3883	* Make range and address adjustments.
3884	*/
3885	DBGFADDRESS Address = pDbgc->SearchAddr;
3886	if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3887	{
3888	Address.FlatPtr -= Address.off;
3889	Address.off = 0;
3890	}
3891
3892	RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3893	if (!cbRange)
3894	cbRange = ~(RTGCUINTPTR)0;
3895	if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3896	cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3897
3898	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3899	pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3900	}
3901
3902
3903	/**
3904	* Search memory, worker for the 's' and 's?' functions.
3905	*
3906	* @returns VBox status.
3907	* @param pCmdHlp Pointer to the command helper functions.
3908	* @param pVM Pointer to the current VM (if any).
3909	* @param pAddress Where to start searching. If no range, search till end of address space.
3910	* @param cMaxHits The maximum number of hits.
3911	* @param chType The search type.
3912	* @param paPatArgs The pattern variable array.
3913	* @param cPatArgs Number of pattern variables.
3914	* @param pResult Where to store the result of a function invocation.
3915	*/
3916	static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3917	PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3918	{
3919	dbgcVarSetGCFlat(pResult, 0);
3920
3921	/*
3922	* Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3923	*/
3924	uint32_t cbUnit;
3925	switch (chType)
3926	{
3927	case 'a':
3928	case 'b': cbUnit = 1; break;
3929	case 'u': cbUnit = 2 \| RT_BIT_32(31); break;
3930	case 'w': cbUnit = 2; break;
3931	case 'd': cbUnit = 4; break;
3932	case 'q': cbUnit = 8; break;
3933	default:
3934	return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3935	}
3936	uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3937	uint32_t cbBytes = sizeof(abBytes);
3938	int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3939	if (RT_FAILURE(rc))
3940	return VERR_DBGC_COMMAND_FAILED;
3941
3942	/*
3943	* Make DBGF address and fix the range.
3944	*/
3945	DBGFADDRESS Address;
3946	rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3947	if (RT_FAILURE(rc))
3948	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3949
3950	RTGCUINTPTR cbRange;
3951	switch (pAddress->enmRangeType)
3952	{
3953	case DBGCVAR_RANGE_BYTES:
3954	cbRange = pAddress->u64Range;
3955	if (cbRange != pAddress->u64Range)
3956	cbRange = ~(RTGCUINTPTR)0;
3957	break;
3958
3959	case DBGCVAR_RANGE_ELEMENTS:
3960	cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3961	if ( cbRange != pAddress->u64Range * cbUnit
3962	\|\| cbRange < pAddress->u64Range)
3963	cbRange = ~(RTGCUINTPTR)0;
3964	break;
3965
3966	default:
3967	cbRange = ~(RTGCUINTPTR)0;
3968	break;
3969	}
3970	if (Address.FlatPtr + cbRange < Address.FlatPtr)
3971	cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3972
3973	/*
3974	* Ok, do it.
3975	*/
3976	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3977	}
3978
3979
3980	/**
3981	* The 's' command.
3982	*
3983	* @returns VBox status.
3984	* @param pCmd Pointer to the command descriptor (as registered).
3985	* @param pCmdHlp Pointer to command helper functions.
3986	* @param pVM Pointer to the current VM (if any).
3987	* @param paArgs Pointer to (readonly) array of arguments.
3988	* @param cArgs Number of arguments in the array.
3989	*/
3990	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3991	{
3992	/* check that the parser did what it's supposed to do. */
3993	//if ( cArgs <= 2
3994	// && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3995	// return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
3996
3997	/*
3998	* Repeat previous search?
3999	*/
4000	if (cArgs == 0)
4001	return dbgcCmdWorkerSearchMemResume(pCmdHlp, pVM, pResult);
4002
4003	/*
4004	* Parse arguments.
4005	*/
4006
4007	return -1;
4008	}
4009
4010
4011	/**
4012	* The 's?' command.
4013	*
4014	* @returns VBox status.
4015	* @param pCmd Pointer to the command descriptor (as registered).
4016	* @param pCmdHlp Pointer to command helper functions.
4017	* @param pVM Pointer to the current VM (if any).
4018	* @param paArgs Pointer to (readonly) array of arguments.
4019	* @param cArgs Number of arguments in the array.
4020	*/
4021	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4022	{
4023	/* check that the parser did what it's supposed to do. */
4024	if ( cArgs < 2
4025	\|\| !DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
4026	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
4027	return dbgcCmdWorkerSearchMem(pCmdHlp, pVM, &paArgs[0], pResult ? 1 : 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, pResult);
4028	}
4029
4030
4031	/**
4032	* List near symbol.
4033	*
4034	* @returns VBox status code.
4035	* @param pCmdHlp Pointer to command helper functions.
4036	* @param pVM Pointer to the current VM (if any).
4037	* @param pArg Pointer to the address or symbol to lookup.
4038	*/
4039	static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pArg, PDBGCVAR pResult)
4040	{
4041	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4042	dbgcVarSetGCFlat(pResult, 0);
4043
4044	RTDBGSYMBOL Symbol;
4045	int rc;
4046	if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
4047	{
4048	/*
4049	* Lookup the symbol address.
4050	*/
4051	rc = DBGFR3AsSymbolByName(pVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
4052	if (RT_FAILURE(rc))
4053	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
4054
4055	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%Rptr %s\n", Symbol.Value, Symbol.szName);
4056	dbgcVarSetGCFlatByteRange(pResult, Symbol.Value, Symbol.cb);
4057	}
4058	else
4059	{
4060	/*
4061	* Convert it to a flat GC address and lookup that address.
4062	*/
4063	DBGCVAR AddrVar;
4064	rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
4065	if (RT_FAILURE(rc))
4066	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
4067
4068	dbgcVarSetVar(pResult, &AddrVar);
4069
4070	RTINTPTR offDisp;
4071	DBGFADDRESS Addr;
4072	rc = DBGFR3AsSymbolByAddr(pVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pVM, &Addr, AddrVar.u.GCFlat), &offDisp, &Symbol, NULL);
4073	if (RT_FAILURE(rc))
4074	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
4075
4076	if (!offDisp)
4077	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s", &AddrVar, Symbol.szName);
4078	else if (offDisp > 0)
4079	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
4080	else
4081	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
4082	if ((RTGCINTPTR)Symbol.cb > -offDisp)
4083	{
4084	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " LB %RGv\n", Symbol.cb + offDisp);
4085	dbgcVarSetByteRange(pResult, Symbol.cb + offDisp);
4086	}
4087	else
4088	{
4089	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
4090	dbgcVarSetNoRange(pResult);
4091	}
4092	}
4093
4094	return rc;
4095	}
4096
4097
4098	/**
4099	* The 'ln' (listnear) command.
4100	*
4101	* @returns VBox status.
4102	* @param pCmd Pointer to the command descriptor (as registered).
4103	* @param pCmdHlp Pointer to command helper functions.
4104	* @param pVM Pointer to the current VM (if any).
4105	* @param paArgs Pointer to (readonly) array of arguments.
4106	* @param cArgs Number of arguments in the array.
4107	*/
4108	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4109	{
4110	dbgcVarSetGCFlat(pResult, 0);
4111	if (!cArgs)
4112	{
4113	/*
4114	* Current cs:eip symbol.
4115	*/
4116	DBGCVAR AddrVar;
4117	int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(cs:eip)");
4118	if (RT_FAILURE(rc))
4119	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(cs:eip)\n");
4120	return dbgcDoListNear(pCmdHlp, pVM, &AddrVar, pResult);
4121	}
4122
4123	/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
4124	/*
4125	* Iterate arguments.
4126	*/
4127	for (unsigned iArg = 0; iArg < cArgs; iArg++)
4128	{
4129	int rc = dbgcDoListNear(pCmdHlp, pVM, &paArgs[iArg], pResult);
4130	if (RT_FAILURE(rc))
4131	return rc;
4132	}
4133
4134	NOREF(pCmd); NOREF(pResult);
4135	return VINF_SUCCESS;
4136	}
4137
4138
4139	/**
4140	* Matches the module patters against a module name.
4141	*
4142	* @returns true if matching, otherwise false.
4143	* @param pszName The module name.
4144	* @param paArgs The module pattern argument list.
4145	* @param cArgs Number of arguments.
4146	*/
4147	static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
4148	{
4149	for (uint32_t i = 0; i < cArgs; i++)
4150	if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
4151	return true;
4152	return false;
4153	}
4154
4155
4156	/**
4157	* The 'ln' (listnear) command.
4158	*
4159	* @returns VBox status.
4160	* @param pCmd Pointer to the command descriptor (as registered).
4161	* @param pCmdHlp Pointer to command helper functions.
4162	* @param pVM Pointer to the current VM (if any).
4163	* @param paArgs Pointer to (readonly) array of arguments.
4164	* @param cArgs Number of arguments in the array.
4165	*/
4166	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4167	{
4168	bool const fMappings = pCmd->pszCmd[2] == 'o';
4169	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4170
4171	/*
4172	* Iterate the modules in the current address space and print info about
4173	* those matching the input.
4174	*/
4175	RTDBGAS hAs = DBGFR3AsResolveAndRetain(pVM, pDbgc->hDbgAs);
4176	uint32_t cMods = RTDbgAsModuleCount(hAs);
4177	for (uint32_t iMod = 0; iMod < cMods; iMod++)
4178	{
4179	RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
4180	if (hMod != NIL_RTDBGMOD)
4181	{
4182	uint32_t const cSegs = RTDbgModSegmentCount(hMod);
4183	const char * const pszName = RTDbgModName(hMod);
4184	if ( cArgs == 0
4185	\|\| dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
4186	{
4187	/*
4188	* Find the mapping with the lower address, preferring a full
4189	* image mapping, for the main line.
4190	*/
4191	RTDBGASMAPINFO aMappings[128];
4192	uint32_t cMappings = RT_ELEMENTS(aMappings);
4193	int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /fFlags/);
4194	if (RT_SUCCESS(rc))
4195	{
4196	bool fFull = false;
4197	RTUINTPTR uMin = RTUINTPTR_MAX;
4198	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4199	if ( aMappings[iMap].Address < uMin
4200	&& ( !fFull
4201	\|\| aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4202	uMin = aMappings[iMap].Address;
4203	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s\n", (RTGCUINTPTR)uMin, cSegs, pszName);
4204
4205	if (fMappings)
4206	{
4207	/* sort by address first - not very efficient. */
4208	for (uint32_t i = 0; i + 1 < cMappings; i++)
4209	for (uint32_t j = i + 1; j < cMappings; j++)
4210	if (aMappings[j].Address < aMappings[i].Address)
4211	{
4212	RTDBGASMAPINFO Tmp = aMappings[j];
4213	aMappings[j] = aMappings[i];
4214	aMappings[i] = Tmp;
4215	}
4216
4217	/* print */
4218	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4219	if (aMappings[iMap].iSeg != NIL_RTDBGSEGIDX)
4220	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4221	(RTGCUINTPTR)aMappings[iMap].Address,
4222	(RTGCUINTPTR)RTDbgModSegmentSize(hMod, aMappings[iMap].iSeg),
4223	aMappings[iMap].iSeg,
4224	/** @todo RTDbgModSegmentName(hMod, aMappings[iMap].iSeg)*/ "noname");
4225	else
4226	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4227	(RTGCUINTPTR)aMappings[iMap].Address,
4228	(RTGCUINTPTR)RTDbgModImageSize(hMod));
4229	}
4230	}
4231	else
4232	DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4233	sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4234	/** @todo missing address space API for enumerating the mappings. */
4235	}
4236	RTDbgModRelease(hMod);
4237	}
4238	}
4239	RTDbgAsRelease(hAs);
4240
4241	NOREF(pCmd); NOREF(pResult);
4242	return VINF_SUCCESS;
4243	}

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source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 35626

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