DBGCEmulateCodeView.cpp@ 9576

Last change on this file since 9576 was 9465, checked in by vboxsync, 17 years ago
Same for idtr & gdtr
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1	/** $Id: DBGCEmulateCodeView.cpp 9465 2008-06-06 11:38:59Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, CodeView / WinDbg Emulation.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
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	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22	/*******************************************************************************
23	* Header Files *
24	*******************************************************************************/
25	#define LOG_GROUP LOG_GROUP_DBGC
26	#include <VBox/dbg.h>
27	#include <VBox/dbgf.h>
28	#include <VBox/pgm.h>
29	#include <VBox/selm.h>
30	#include <VBox/cpum.h>
31	#include <VBox/dis.h>
32	#include <VBox/param.h>
33	#include <VBox/err.h>
34	#include <VBox/log.h>
35
36	#include <iprt/alloc.h>
37	#include <iprt/alloca.h>
38	#include <iprt/string.h>
39	#include <iprt/assert.h>
40	#include <iprt/ctype.h>
41
42	#include <stdlib.h>
43	#include <stdio.h>
44
45	#include "DBGCInternal.h"
46
47
48	/*******************************************************************************
49	* Internal Functions *
50	*******************************************************************************/
51	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
52	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
53	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
54	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
55	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
56	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
57	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
58	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
59	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
60	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
61	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
62	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
63	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
64	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
65	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
66	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
67	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
68	static DECLCALLBACK(int) dbgcCmdListNear(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	/** 'dpt?' arguments. */
171	static const DBGCVARDESC g_aArgDumpPT[] =
172	{
173	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
174	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from." },
175	};
176
177
178	/** 'dpta' arguments. */
179	static const DBGCVARDESC g_aArgDumpPTAddr[] =
180	{
181	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
182	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page table entry to start dumping from." },
183	};
184
185
186	/** 'dt' arguments. */
187	static const DBGCVARDESC g_aArgDumpTSS[] =
188	{
189	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
190	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "tss", "TSS selector number." },
191	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "tss:ign\|addr", "TSS address. If the selector is a TSS selector, the offset will be ignored." }
192	};
193
194
195	/** 'ln' arguments. */
196	static const DBGCVARDESC g_aArgListNear[] =
197	{
198	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
199	{ 0, ~0, DBGCVAR_CAT_POINTER, 0, "address", "Address of the symbol to look up." },
200	{ 0, ~0, DBGCVAR_CAT_SYMBOL, 0, "symbol", "Symbol to lookup." },
201	};
202
203	/** 'ln' return. */
204	static const DBGCVARDESC g_RetListNear =
205	{
206	1, 1, DBGCVAR_CAT_POINTER, 0, "address", "The last resolved symbol/address with adjusted range."
207	};
208
209
210	/** 'ls' arguments. */
211	static const DBGCVARDESC g_aArgListSource[] =
212	{
213	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
214	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start looking for source lines." },
215	};
216
217
218	/** 'm' argument. */
219	static const DBGCVARDESC g_aArgMemoryInfo[] =
220	{
221	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
222	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Pointer to obtain info about." },
223	};
224
225
226	/** 'r' arguments. */
227	static const DBGCVARDESC g_aArgReg[] =
228	{
229	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
230	{ 0, 1, DBGCVAR_CAT_SYMBOL, 0, "register", "Register to show or set." },
231	{ 0, 1, DBGCVAR_CAT_NUMBER_NO_RANGE, DBGCVD_FLAGS_DEP_PREV, "value", "New register value." },
232	};
233
234
235	/** 's' arguments. */
236	static const DBGCVARDESC g_aArgSearchMem[] =
237	{
238	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
239	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-b", "Byte string." },
240	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-w", "Word string." },
241	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-d", "DWord string." },
242	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-q", "QWord string." },
243	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-a", "ASCII string." },
244	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-u", "Unicode string." },
245	{ 0, 1, DBGCVAR_CAT_OPTION_NUMBER, 0, "-n <Hits>", "Maximum number of hits." },
246	{ 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
247	{ 0, ~0, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
248	};
249
250
251	/** 's?' arguments. */
252	static const DBGCVARDESC g_aArgSearchMemType[] =
253	{
254	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
255	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
256	{ 1, ~0, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
257	};
258
259
260	/** 'u' arguments. */
261	static const DBGCVARDESC g_aArgUnassemble[] =
262	{
263	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
264	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start disassembling." },
265	};
266
267
268	/** Command descriptors for the CodeView / WinDbg emulation.
269	* The emulation isn't attempting to be identical, only somewhat similar.
270	*/
271	const DBGCCMD g_aCmdsCodeView[] =
272	{
273	/* pszCmd, cArgsMin, cArgsMax, paArgDescs, cArgDescs, pResultDesc, fFlags, pfnHandler pszSyntax, ....pszDescription */
274	{ "ba", 3, 6, &g_aArgBrkAcc[0], RT_ELEMENTS(g_aArgBrkAcc), NULL, 0, dbgcCmdBrkAccess, "<access> <size> <address> [passes [max passes]] [cmds]",
275	"Sets a data access breakpoint." },
276	{ "bc", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkClear, "all \| <bp#> [bp# []]", "Enabled a set of breakpoints." },
277	{ "bd", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkDisable, "all \| <bp#> [bp# []]", "Disables a set of breakpoints." },
278	{ "be", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkEnable, "all \| <bp#> [bp# []]", "Enabled a set of breakpoints." },
279	{ "bl", 0, 0, NULL, 0, NULL, 0, dbgcCmdBrkList, "", "Lists all the breakpoints." },
280	{ "bp", 1, 4, &g_aArgBrkSet[0], RT_ELEMENTS(g_aArgBrkSet), NULL, 0, dbgcCmdBrkSet, "<address> [passes [max passes]] [cmds]",
281	"Sets a breakpoint (int 3)." },
282	{ "br", 1, 4, &g_aArgBrkREM[0], RT_ELEMENTS(g_aArgBrkREM), NULL, 0, dbgcCmdBrkREM, "<address> [passes [max passes]] [cmds]",
283	"Sets a recompiler specific breakpoint." },
284	{ "d", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory using last element size." },
285	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
286	{ "db", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in bytes." },
287	{ "dd", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in double words." },
288	{ "dg", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT)." },
289	{ "dga", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT) including not-present entries." },
290	{ "di", 0, ~0, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), NULL, 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT)." },
291	{ "dia", 0, ~0, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), NULL, 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT) including not-present entries." },
292	{ "dl", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT)." },
293	{ "dla", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT) including not-present entries." },
294	{ "dpd", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the default context." },
295	{ "dpda", 0, 1, &g_aArgDumpPDAddr[0],RT_ELEMENTS(g_aArgDumpPDAddr),NULL, 0, dbgcCmdDumpPageDir, "[addr]", "Dumps specified page directory." },
296	{ "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. " },
297	{ "dpdg", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the guest." },
298	{ "dpdh", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the hypervisor. " },
299	{ "dpt", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the default context." },
300	{ "dpta", 1, 1, &g_aArgDumpPTAddr[0],RT_ELEMENTS(g_aArgDumpPTAddr), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps specified page table." },
301	{ "dptb", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTableBoth,"<addr>", "Dumps page table entries of the guest and the hypervisor." },
302	{ "dptg", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the guest." },
303	{ "dpth", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the hypervisor." },
304	{ "dq", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in quad words." },
305	{ "dt", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), NULL, 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the task state segment (TSS)." },
306	{ "dw", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in words." },
307	{ "g", 0, 0, NULL, 0, NULL, 0, dbgcCmdGo, "", "Continue execution." },
308	{ "k", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack." },
309	{ "kg", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack - guest." },
310	{ "kh", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack - hypervisor." },
311	{ "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." },
312	{ "ls", 0, 1, &g_aArgListSource[0],RT_ELEMENTS(g_aArgListSource),NULL, 0, dbgcCmdListSource, "[addr]", "Source." },
313	{ "m", 1, 1, &g_aArgMemoryInfo[0],RT_ELEMENTS(g_aArgMemoryInfo),NULL, 0, dbgcCmdMemoryInfo, "<addr>", "Display information about that piece of memory." },
314	{ "r", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdReg, "[reg [newval]]", "Show or set register(s) - active reg set." },
315	{ "rg", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdRegGuest, "[reg [newval]]", "Show or set register(s) - guest reg set." },
316	{ "rh", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdRegHyper, "[reg [newval]]", "Show or set register(s) - hypervisor reg set." },
317	{ "rt", 0, 0, NULL, 0, NULL, 0, dbgcCmdRegTerse, "", "Toggles terse / verbose register info." },
318	{ "s", 0, ~0, &g_aArgSearchMem[0], RT_ELEMENTS(g_aArgSearchMem), NULL, 0, dbgcCmdSearchMem, "[options] <range> <pattern>", "Continue last search." },
319	{ "sa", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an ascii string." },
320	{ "sb", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more bytes." },
321	{ "sd", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more double words." },
322	{ "sq", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more quad words." },
323	{ "su", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an unicode string." },
324	{ "sw", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more words." },
325	{ "t", 0, 0, NULL, 0, NULL, 0, dbgcCmdTrace, "", "Instruction trace (step into)." },
326	{ "u", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble." },
327	};
328
329	/** The number of commands in the CodeView/WinDbg emulation. */
330	const unsigned g_cCmdsCodeView = RT_ELEMENTS(g_aCmdsCodeView);
331
332
333
334	/**
335	* The 'go' command.
336	*
337	* @returns VBox status.
338	* @param pCmd Pointer to the command descriptor (as registered).
339	* @param pCmdHlp Pointer to command helper functions.
340	* @param pVM Pointer to the current VM (if any).
341	* @param paArgs Pointer to (readonly) array of arguments.
342	* @param cArgs Number of arguments in the array.
343	*/
344	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
345	{
346	/*
347	* Check if the VM is halted or not before trying to resume it.
348	*/
349	if (!DBGFR3IsHalted(pVM))
350	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "warning: The VM is already running...\n");
351	else
352	{
353	int rc = DBGFR3Resume(pVM);
354	if (VBOX_FAILURE(rc))
355	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Executing DBGFR3Resume().");
356	}
357
358	NOREF(pCmd);
359	NOREF(paArgs);
360	NOREF(cArgs);
361	NOREF(pResult);
362	return 0;
363	}
364
365
366	/**
367	* The 'ba' command.
368	*
369	* @returns VBox status.
370	* @param pCmd Pointer to the command descriptor (as registered).
371	* @param pCmdHlp Pointer to command helper functions.
372	* @param pVM Pointer to the current VM (if any).
373	* @param paArgs Pointer to (readonly) array of arguments.
374	* @param cArgs Number of arguments in the array.
375	*/
376	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
377	{
378	/*
379	* Interpret access type.
380	*/
381	if ( !strchr("xrwi", paArgs[0].u.pszString[0])
382	\|\| paArgs[0].u.pszString[1])
383	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid access type '%s' for '%s'. Valid types are 'e', 'r', 'w' and 'i'.\n",
384	paArgs[0].u.pszString, pCmd->pszCmd);
385	uint8_t fType = 0;
386	switch (paArgs[0].u.pszString[0])
387	{
388	case 'x': fType = X86_DR7_RW_EO; break;
389	case 'r': fType = X86_DR7_RW_RW; break;
390	case 'w': fType = X86_DR7_RW_WO; break;
391	case 'i': fType = X86_DR7_RW_IO; break;
392	}
393
394	/*
395	* Validate size.
396	*/
397	if (fType == X86_DR7_RW_EO && paArgs[1].u.u64Number != 1)
398	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid access size %RX64 for '%s'. 'x' access type requires size 1!\n",
399	paArgs[1].u.u64Number, pCmd->pszCmd);
400	switch (paArgs[1].u.u64Number)
401	{
402	case 1:
403	case 2:
404	case 4:
405	break;
406	/case 8: - later/
407	default:
408	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid access size %RX64 for '%s'. 1, 2 or 4!\n",
409	paArgs[1].u.u64Number, pCmd->pszCmd);
410	}
411	uint8_t cb = (uint8_t)paArgs[1].u.u64Number;
412
413	/*
414	* Convert the pointer to a DBGF address.
415	*/
416	DBGFADDRESS Address;
417	int rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, &paArgs[2], &Address);
418	if (VBOX_FAILURE(rc))
419	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Couldn't convert '%DV' to a DBGF address, rc=%Vrc.\n", &paArgs[2], rc);
420
421	/*
422	* Pick out the optional arguments.
423	*/
424	uint64_t iHitTrigger = 0;
425	uint64_t iHitDisable = ~0;
426	const char *pszCmds = NULL;
427	unsigned iArg = 3;
428	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
429	{
430	iHitTrigger = paArgs[iArg].u.u64Number;
431	iArg++;
432	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
433	{
434	iHitDisable = paArgs[iArg].u.u64Number;
435	iArg++;
436	}
437	}
438	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
439	{
440	pszCmds = paArgs[iArg].u.pszString;
441	iArg++;
442	}
443
444	/*
445	* Try set the breakpoint.
446	*/
447	RTUINT iBp;
448	rc = DBGFR3BpSetReg(pVM, &Address, iHitTrigger, iHitDisable, fType, cb, &iBp);
449	if (VBOX_SUCCESS(rc))
450	{
451	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
452	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
453	if (VBOX_SUCCESS(rc))
454	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Set access breakpoint %u at %VGv\n", iBp, Address.FlatPtr);
455	if (rc == VERR_DBGC_BP_EXISTS)
456	{
457	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
458	if (VBOX_SUCCESS(rc))
459	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Updated access breakpoint %u at %VGv\n", iBp, Address.FlatPtr);
460	}
461	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
462	AssertRC(rc2);
463	}
464	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Failed to set access breakpoint at %VGv, rc=%Vrc.\n", Address.FlatPtr, rc);
465	}
466
467
468	/**
469	* The 'bc' command.
470	*
471	* @returns VBox status.
472	* @param pCmd Pointer to the command descriptor (as registered).
473	* @param pCmdHlp Pointer to command helper functions.
474	* @param pVM Pointer to the current VM (if any).
475	* @param paArgs Pointer to (readonly) array of arguments.
476	* @param cArgs Number of arguments in the array.
477	*/
478	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
479	{
480	/*
481	* Enumerate the arguments.
482	*/
483	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
484	int rc = VINF_SUCCESS;
485	for (unsigned iArg = 0; iArg < cArgs && VBOX_SUCCESS(rc); iArg++)
486	{
487	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
488	{
489	/* one */
490	RTUINT iBp = (RTUINT)paArgs[iArg].u.u64Number;
491	if (iBp != paArgs[iArg].u.u64Number)
492	{
493	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Breakpoint id %RX64 is too large!\n", paArgs[iArg].u.u64Number);
494	break;
495	}
496	int rc2 = DBGFR3BpClear(pVM, iBp);
497	if (VBOX_FAILURE(rc2))
498	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc2, "DBGFR3BpClear failed for breakpoint %u!\n", iBp);
499	if (VBOX_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
500	dbgcBpDelete(pDbgc, iBp);
501	}
502	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
503	{
504	/* all */
505	PDBGCBP pBp = pDbgc->pFirstBp;
506	while (pBp)
507	{
508	RTUINT iBp = pBp->iBp;
509	pBp = pBp->pNext;
510
511	int rc2 = DBGFR3BpClear(pVM, iBp);
512	if (VBOX_FAILURE(rc2))
513	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc2, "DBGFR3BpClear failed for breakpoint %u!\n", iBp);
514	if (VBOX_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
515	dbgcBpDelete(pDbgc, iBp);
516	}
517	}
518	else
519	{
520	/* invalid parameter */
521	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid argument '%s' to '%s'!\n", paArgs[iArg].u.pszString, pCmd->pszCmd);
522	break;
523	}
524	}
525	return rc;
526	}
527
528
529	/**
530	* The 'bd' command.
531	*
532	* @returns VBox status.
533	* @param pCmd Pointer to the command descriptor (as registered).
534	* @param pCmdHlp Pointer to command helper functions.
535	* @param pVM Pointer to the current VM (if any).
536	* @param paArgs Pointer to (readonly) array of arguments.
537	* @param cArgs Number of arguments in the array.
538	*/
539	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
540	{
541	/*
542	* Enumerate the arguments.
543	*/
544	int rc = VINF_SUCCESS;
545	for (unsigned iArg = 0; iArg < cArgs && VBOX_SUCCESS(rc); iArg++)
546	{
547	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
548	{
549	/* one */
550	RTUINT iBp = (RTUINT)paArgs[iArg].u.u64Number;
551	if (iBp != paArgs[iArg].u.u64Number)
552	{
553	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Breakpoint id %RX64 is too large!\n", paArgs[iArg].u.u64Number);
554	break;
555	}
556	rc = DBGFR3BpDisable(pVM, iBp);
557	if (VBOX_FAILURE(rc))
558	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpDisable failed for breakpoint %u!\n", iBp);
559	}
560	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
561	{
562	/* all */
563	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
564	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
565	{
566	rc = DBGFR3BpDisable(pVM, pBp->iBp);
567	if (VBOX_FAILURE(rc))
568	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpDisable failed for breakpoint %u!\n", pBp->iBp);
569	}
570	}
571	else
572	{
573	/* invalid parameter */
574	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid argument '%s' to '%s'!\n", paArgs[iArg].u.pszString, pCmd->pszCmd);
575	break;
576	}
577	}
578	return rc;
579	}
580
581
582	/**
583	* The 'be' command.
584	*
585	* @returns VBox status.
586	* @param pCmd Pointer to the command descriptor (as registered).
587	* @param pCmdHlp Pointer to command helper functions.
588	* @param pVM Pointer to the current VM (if any).
589	* @param paArgs Pointer to (readonly) array of arguments.
590	* @param cArgs Number of arguments in the array.
591	*/
592	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
593	{
594	/*
595	* Enumerate the arguments.
596	*/
597	int rc = VINF_SUCCESS;
598	for (unsigned iArg = 0; iArg < cArgs && VBOX_SUCCESS(rc); iArg++)
599	{
600	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
601	{
602	/* one */
603	RTUINT iBp = (RTUINT)paArgs[iArg].u.u64Number;
604	if (iBp != paArgs[iArg].u.u64Number)
605	{
606	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Breakpoint id %RX64 is too large!\n", paArgs[iArg].u.u64Number);
607	break;
608	}
609	rc = DBGFR3BpEnable(pVM, iBp);
610	if (VBOX_FAILURE(rc))
611	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpEnable failed for breakpoint %u!\n", iBp);
612	}
613	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
614	{
615	/* all */
616	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
617	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
618	{
619	rc = DBGFR3BpEnable(pVM, pBp->iBp);
620	if (VBOX_FAILURE(rc))
621	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpEnable failed for breakpoint %u!\n", pBp->iBp);
622	}
623	}
624	else
625	{
626	/* invalid parameter */
627	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid argument '%s' to '%s'!\n", paArgs[iArg].u.pszString, pCmd->pszCmd);
628	break;
629	}
630	}
631	return rc;
632	}
633
634
635	/**
636	* Breakpoint enumeration callback function.
637	*
638	* @returns VBox status code. Any failure will stop the enumeration.
639	* @param pVM The VM handle.
640	* @param pvUser The user argument.
641	* @param pBp Pointer to the breakpoint information. (readonly)
642	*/
643	static DECLCALLBACK(int) dbgcEnumBreakpointsCallback(PVM pVM, void *pvUser, PCDBGFBP pBp)
644	{
645	PDBGC pDbgc = (PDBGC)pvUser;
646	PDBGCBP pDbgcBp = dbgcBpGet(pDbgc, pBp->iBp);
647
648	/*
649	* BP type and size.
650	*/
651	char chType;
652	char cb = 1;
653	switch (pBp->enmType)
654	{
655	case DBGFBPTYPE_INT3:
656	chType = 'p';
657	break;
658	case DBGFBPTYPE_REG:
659	switch (pBp->u.Reg.fType)
660	{
661	case X86_DR7_RW_EO: chType = 'x'; break;
662	case X86_DR7_RW_WO: chType = 'w'; break;
663	case X86_DR7_RW_IO: chType = 'i'; break;
664	case X86_DR7_RW_RW: chType = 'r'; break;
665	default: chType = '?'; break;
666
667	}
668	cb = pBp->u.Reg.cb;
669	break;
670	case DBGFBPTYPE_REM:
671	chType = 'r';
672	break;
673	default:
674	chType = '?';
675	break;
676	}
677
678	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%2u %c %d %c %VGv %04RX64 (%04RX64 to ",
679	pBp->iBp, pBp->fEnabled ? 'e' : 'd', cb, chType,
680	pBp->GCPtr, pBp->cHits, pBp->iHitTrigger);
681	if (pBp->iHitDisable == ~(uint64_t)0)
682	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "~0) ");
683	else
684	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%04RX64)");
685
686	/*
687	* Try resolve the address.
688	*/
689	DBGFSYMBOL Sym;
690	RTGCINTPTR off;
691	int rc = DBGFR3SymbolByAddr(pVM, pBp->GCPtr, &off, &Sym);
692	if (VBOX_SUCCESS(rc))
693	{
694	if (!off)
695	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%s", Sym.szName);
696	else if (off > 0)
697	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%s+%VGv", Sym.szName, off);
698	else
699	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%s+%VGv", Sym.szName, -off);
700	}
701
702	/*
703	* The commands.
704	*/
705	if (pDbgcBp)
706	{
707	if (pDbgcBp->cchCmd)
708	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\n cmds: '%s'\n",
709	pDbgcBp->szCmd);
710	else
711	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\n");
712	}
713	else
714	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, " [unknown bp]\n");
715
716	return VINF_SUCCESS;
717	}
718
719
720	/**
721	* The 'bl' command.
722	*
723	* @returns VBox status.
724	* @param pCmd Pointer to the command descriptor (as registered).
725	* @param pCmdHlp Pointer to command helper functions.
726	* @param pVM Pointer to the current VM (if any).
727	* @param paArgs Pointer to (readonly) array of arguments.
728	* @param cArgs Number of arguments in the array.
729	*/
730	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD /pCmd/, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR /paArgs/, unsigned /cArgs/, PDBGCVAR /pResult/)
731	{
732	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
733
734	/*
735	* Enumerate the breakpoints.
736	*/
737	int rc = DBGFR3BpEnum(pVM, dbgcEnumBreakpointsCallback, pDbgc);
738	if (VBOX_FAILURE(rc))
739	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpEnum failed.\n");
740	return rc;
741	}
742
743
744	/**
745	* The 'bp' command.
746	*
747	* @returns VBox status.
748	* @param pCmd Pointer to the command descriptor (as registered).
749	* @param pCmdHlp Pointer to command helper functions.
750	* @param pVM Pointer to the current VM (if any).
751	* @param paArgs Pointer to (readonly) array of arguments.
752	* @param cArgs Number of arguments in the array.
753	*/
754	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD /pCmd/, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
755	{
756	/*
757	* Convert the pointer to a DBGF address.
758	*/
759	DBGFADDRESS Address;
760	int rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
761	if (VBOX_FAILURE(rc))
762	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Couldn't convert '%DV' to a DBGF address, rc=%Vrc.\n", &paArgs[0], rc);
763
764	/*
765	* Pick out the optional arguments.
766	*/
767	uint64_t iHitTrigger = 0;
768	uint64_t iHitDisable = ~0;
769	const char *pszCmds = NULL;
770	unsigned iArg = 1;
771	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
772	{
773	iHitTrigger = paArgs[iArg].u.u64Number;
774	iArg++;
775	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
776	{
777	iHitDisable = paArgs[iArg].u.u64Number;
778	iArg++;
779	}
780	}
781	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
782	{
783	pszCmds = paArgs[iArg].u.pszString;
784	iArg++;
785	}
786
787	/*
788	* Try set the breakpoint.
789	*/
790	RTUINT iBp;
791	rc = DBGFR3BpSet(pVM, &Address, iHitTrigger, iHitDisable, &iBp);
792	if (VBOX_SUCCESS(rc))
793	{
794	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
795	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
796	if (VBOX_SUCCESS(rc))
797	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Set breakpoint %u at %VGv\n", iBp, Address.FlatPtr);
798	if (rc == VERR_DBGC_BP_EXISTS)
799	{
800	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
801	if (VBOX_SUCCESS(rc))
802	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Updated breakpoint %u at %VGv\n", iBp, Address.FlatPtr);
803	}
804	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
805	AssertRC(rc2);
806	}
807	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Failed to set breakpoint at %VGv, rc=%Vrc.\n", Address.FlatPtr, rc);
808	}
809
810
811	/**
812	* The 'br' command.
813	*
814	* @returns VBox status.
815	* @param pCmd Pointer to the command descriptor (as registered).
816	* @param pCmdHlp Pointer to command helper functions.
817	* @param pVM Pointer to the current VM (if any).
818	* @param paArgs Pointer to (readonly) array of arguments.
819	* @param cArgs Number of arguments in the array.
820	*/
821	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD /pCmd/, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
822	{
823	/*
824	* Convert the pointer to a DBGF address.
825	*/
826	DBGFADDRESS Address;
827	int rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
828	if (VBOX_FAILURE(rc))
829	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Couldn't convert '%DV' to a DBGF address, rc=%Vrc.\n", &paArgs[0], rc);
830
831	/*
832	* Pick out the optional arguments.
833	*/
834	uint64_t iHitTrigger = 0;
835	uint64_t iHitDisable = ~0;
836	const char *pszCmds = NULL;
837	unsigned iArg = 1;
838	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
839	{
840	iHitTrigger = paArgs[iArg].u.u64Number;
841	iArg++;
842	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
843	{
844	iHitDisable = paArgs[iArg].u.u64Number;
845	iArg++;
846	}
847	}
848	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
849	{
850	pszCmds = paArgs[iArg].u.pszString;
851	iArg++;
852	}
853
854	/*
855	* Try set the breakpoint.
856	*/
857	RTUINT iBp;
858	rc = DBGFR3BpSetREM(pVM, &Address, iHitTrigger, iHitDisable, &iBp);
859	if (VBOX_SUCCESS(rc))
860	{
861	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
862	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
863	if (VBOX_SUCCESS(rc))
864	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Set REM breakpoint %u at %VGv\n", iBp, Address.FlatPtr);
865	if (rc == VERR_DBGC_BP_EXISTS)
866	{
867	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
868	if (VBOX_SUCCESS(rc))
869	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Updated REM breakpoint %u at %VGv\n", iBp, Address.FlatPtr);
870	}
871	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
872	AssertRC(rc2);
873	}
874	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Failed to set REM breakpoint at %VGv, rc=%Vrc.\n", Address.FlatPtr, rc);
875	}
876
877
878	/**
879	* The 'u' command.
880	*
881	* @returns VBox status.
882	* @param pCmd Pointer to the command descriptor (as registered).
883	* @param pCmdHlp Pointer to command helper functions.
884	* @param pVM Pointer to the current VM (if any).
885	* @param paArgs Pointer to (readonly) array of arguments.
886	* @param cArgs Number of arguments in the array.
887	*/
888	static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
889	{
890	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
891
892	/*
893	* Validate input.
894	*/
895	if ( cArgs > 1
896	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
897	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
898	if (!pVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
899	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Don't know where to start disassembling...\n");
900	if (!pVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
901	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: GC address but no VM.\n");
902
903	/*
904	* Find address.
905	*/
906	unsigned fFlags = DBGF_DISAS_FLAGS_NO_ADDRESS;
907	if (!cArgs)
908	{
909	if (!DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
910	{
911	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FAR;
912	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVM) : CPUMGetHyperEIP(pVM);
913	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVM) : CPUMGetHyperCS(pVM);
914	if (pDbgc->fRegCtxGuest)
915	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_GUEST;
916	else
917	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_HYPER;
918	}
919	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
920	}
921	else
922	pDbgc->DisasmPos = paArgs[0];
923
924	/*
925	* Range.
926	*/
927	switch (pDbgc->DisasmPos.enmRangeType)
928	{
929	case DBGCVAR_RANGE_NONE:
930	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
931	pDbgc->DisasmPos.u64Range = 10;
932	break;
933
934	case DBGCVAR_RANGE_ELEMENTS:
935	if (pDbgc->DisasmPos.u64Range > 2048)
936	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
937	break;
938
939	case DBGCVAR_RANGE_BYTES:
940	if (pDbgc->DisasmPos.u64Range > 65536)
941	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
942	break;
943
944	default:
945	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DisasmPos.enmRangeType);
946	}
947
948	/*
949	* Convert physical and host addresses to guest addresses.
950	*/
951	int rc;
952	switch (pDbgc->DisasmPos.enmType)
953	{
954	case DBGCVAR_TYPE_GC_FLAT:
955	case DBGCVAR_TYPE_GC_FAR:
956	break;
957	case DBGCVAR_TYPE_GC_PHYS:
958	case DBGCVAR_TYPE_HC_FLAT:
959	case DBGCVAR_TYPE_HC_PHYS:
960	case DBGCVAR_TYPE_HC_FAR:
961	{
962	DBGCVAR VarTmp;
963	rc = pCmdHlp->pfnEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
964	if (VBOX_FAILURE(rc))
965	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: failed to evaluate '%%(%Dv)' -> %Vrc .\n", &pDbgc->DisasmPos, rc);
966	pDbgc->DisasmPos = VarTmp;
967	break;
968	}
969	default: AssertFailed(); break;
970	}
971
972	/*
973	* Print address.
974	* todo: Change to list near.
975	*/
976	#if 0
977	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DisasmPos);
978	if (VBOX_FAILURE(rc))
979	return rc;
980	#endif
981
982	/*
983	* Do the disassembling.
984	*/
985	unsigned cTries = 32;
986	int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
987	if (iRangeLeft == 0) /* klugde for 'r'. */
988	iRangeLeft = -1;
989	for (;;)
990	{
991	/*
992	* Disassemble the instruction.
993	*/
994	char szDis[256];
995	uint32_t cbInstr = 1;
996	if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
997	rc = DBGFR3DisasInstrEx(pVM, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags, &szDis[0], sizeof(szDis), &cbInstr);
998	else
999	rc = DBGFR3DisasInstrEx(pVM, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags, &szDis[0], sizeof(szDis), &cbInstr);
1000	if (VBOX_SUCCESS(rc))
1001	{
1002	/* print it */
1003	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1004	if (VBOX_FAILURE(rc))
1005	return rc;
1006	}
1007	else
1008	{
1009	/* bitch. */
1010	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to disassemble instruction, skipping one byte.\n");
1011	if (VBOX_FAILURE(rc))
1012	return rc;
1013	if (cTries-- > 0)
1014	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Too many disassembly failures. Giving up.\n");
1015	cbInstr = 1;
1016	}
1017
1018	/* advance */
1019	if (iRangeLeft < 0) /* 'r' */
1020	break;
1021	if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1022	iRangeLeft--;
1023	else
1024	iRangeLeft -= cbInstr;
1025	rc = pCmdHlp->pfnEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1026	if (VBOX_FAILURE(rc))
1027	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DisasmPos, cbInstr);
1028	if (iRangeLeft <= 0)
1029	break;
1030	fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_CURRENT_HYPER);
1031	}
1032
1033	NOREF(pCmd); NOREF(pResult);
1034	return 0;
1035	}
1036
1037
1038	/**
1039	* The 'ls' command.
1040	*
1041	* @returns VBox status.
1042	* @param pCmd Pointer to the command descriptor (as registered).
1043	* @param pCmdHlp Pointer to command helper functions.
1044	* @param pVM Pointer to the current VM (if any).
1045	* @param paArgs Pointer to (readonly) array of arguments.
1046	* @param cArgs Number of arguments in the array.
1047	*/
1048	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1049	{
1050	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1051
1052	/*
1053	* Validate input.
1054	*/
1055	if ( cArgs > 1
1056	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
1057	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
1058	if (!pVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1059	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Don't know where to start disassembling...\n");
1060	if (!pVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1061	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: GC address but no VM.\n");
1062
1063	/*
1064	* Find address.
1065	*/
1066	if (!cArgs)
1067	{
1068	if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1069	{
1070	pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1071	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVM) : CPUMGetHyperEIP(pVM);
1072	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVM) : CPUMGetHyperCS(pVM);
1073	}
1074	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1075	}
1076	else
1077	pDbgc->SourcePos = paArgs[0];
1078
1079	/*
1080	* Ensure the the source address is flat GC.
1081	*/
1082	switch (pDbgc->SourcePos.enmType)
1083	{
1084	case DBGCVAR_TYPE_GC_FLAT:
1085	break;
1086	case DBGCVAR_TYPE_GC_PHYS:
1087	case DBGCVAR_TYPE_GC_FAR:
1088	case DBGCVAR_TYPE_HC_FLAT:
1089	case DBGCVAR_TYPE_HC_PHYS:
1090	case DBGCVAR_TYPE_HC_FAR:
1091	{
1092	int rc = pCmdHlp->pfnEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1093	if (VBOX_FAILURE(rc))
1094	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid address or address type. (rc=%d)\n", rc);
1095	break;
1096	}
1097	default: AssertFailed(); break;
1098	}
1099
1100	/*
1101	* Range.
1102	*/
1103	switch (pDbgc->SourcePos.enmRangeType)
1104	{
1105	case DBGCVAR_RANGE_NONE:
1106	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1107	pDbgc->SourcePos.u64Range = 10;
1108	break;
1109
1110	case DBGCVAR_RANGE_ELEMENTS:
1111	if (pDbgc->SourcePos.u64Range > 2048)
1112	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
1113	break;
1114
1115	case DBGCVAR_RANGE_BYTES:
1116	if (pDbgc->SourcePos.u64Range > 65536)
1117	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
1118	break;
1119
1120	default:
1121	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1122	}
1123
1124	/*
1125	* Do the disassembling.
1126	*/
1127	bool fFirst = 1;
1128	DBGFLINE LinePrev = { 0, 0, "" };
1129	int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1130	if (iRangeLeft == 0) /* klugde for 'r'. */
1131	iRangeLeft = -1;
1132	for (;;)
1133	{
1134	/*
1135	* Get line info.
1136	*/
1137	DBGFLINE Line;
1138	RTGCINTPTR off;
1139	int rc = DBGFR3LineByAddr(pVM, pDbgc->SourcePos.u.GCFlat, &off, &Line);
1140	if (VBOX_FAILURE(rc))
1141	return VINF_SUCCESS;
1142
1143	unsigned cLines = 0;
1144	if (memcmp(&Line, &LinePrev, sizeof(Line)))
1145	{
1146	/*
1147	* Print filenamename
1148	*/
1149	if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1150	fFirst = true;
1151	if (fFirst)
1152	{
1153	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1154	if (VBOX_FAILURE(rc))
1155	return rc;
1156	}
1157
1158	/*
1159	* Try open the file and read the line.
1160	*/
1161	FILE *phFile = fopen(Line.szFilename, "r");
1162	if (phFile)
1163	{
1164	/* Skip ahead to the desired line. */
1165	char szLine[4096];
1166	unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1167	if (cBefore > 7)
1168	cBefore = 0;
1169	unsigned cLeft = Line.uLineNo - cBefore;
1170	while (cLeft > 0)
1171	{
1172	szLine[0] = '\0';
1173	if (!fgets(szLine, sizeof(szLine), phFile))
1174	break;
1175	cLeft--;
1176	}
1177	if (!cLeft)
1178	{
1179	/* print the before lines */
1180	for (;;)
1181	{
1182	size_t cch = strlen(szLine);
1183	while (cch > 0 && (szLine[cch - 1] == '\r' \|\| szLine[cch - 1] == '\n' \|\| isspace(szLine[cch - 1])) )
1184	szLine[--cch] = '\0';
1185	if (cBefore-- <= 0)
1186	break;
1187
1188	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1189	szLine[0] = '\0';
1190	fgets(szLine, sizeof(szLine), phFile);
1191	cLines++;
1192	}
1193	/* print the actual line */
1194	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1195	}
1196	fclose(phFile);
1197	if (VBOX_FAILURE(rc))
1198	return rc;
1199	fFirst = false;
1200	}
1201	else
1202	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1203
1204	LinePrev = Line;
1205	}
1206
1207
1208	/*
1209	* Advance
1210	*/
1211	if (iRangeLeft < 0) /* 'r' */
1212	break;
1213	if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1214	iRangeLeft -= cLines;
1215	else
1216	iRangeLeft -= 1;
1217	rc = pCmdHlp->pfnEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1218	if (VBOX_FAILURE(rc))
1219	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1220	if (iRangeLeft <= 0)
1221	break;
1222	}
1223
1224	NOREF(pCmd); NOREF(pResult);
1225	return 0;
1226	}
1227
1228
1229	/**
1230	* The 'r' command.
1231	*
1232	* @returns VBox status.
1233	* @param pCmd Pointer to the command descriptor (as registered).
1234	* @param pCmdHlp Pointer to command helper functions.
1235	* @param pVM Pointer to the current VM (if any).
1236	* @param paArgs Pointer to (readonly) array of arguments.
1237	* @param cArgs Number of arguments in the array.
1238	*/
1239	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1240	{
1241	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1242
1243	if (pDbgc->fRegCtxGuest)
1244	return dbgcCmdRegGuest(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
1245	else
1246	return dbgcCmdRegHyper(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
1247	}
1248
1249
1250	/**
1251	* Common worker for the dbgcCmdReg*() commands.
1252	*
1253	* @returns VBox status.
1254	* @param pCmd Pointer to the command descriptor (as registered).
1255	* @param pCmdHlp Pointer to command helper functions.
1256	* @param pVM Pointer to the current VM (if any).
1257	* @param paArgs Pointer to (readonly) array of arguments.
1258	* @param cArgs Number of arguments in the array.
1259	* @param pszPrefix The symbol prefix.
1260	*/
1261	static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult, const char *pszPrefix)
1262	{
1263	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1264
1265	/*
1266	* cArgs == 0: Show all
1267	*/
1268	if (cArgs == 0)
1269	{
1270	/*
1271	* Get register context.
1272	*/
1273	int rc;
1274	PCPUMCTX pCtx;
1275	PCCPUMCTXCORE pCtxCore;
1276	if (!*pszPrefix)
1277	{
1278	rc = CPUMQueryGuestCtxPtr(pVM, &pCtx);
1279	pCtxCore = CPUMGetGuestCtxCore(pVM);
1280	}
1281	else
1282	{
1283	rc = CPUMQueryHyperCtxPtr(pVM, &pCtx);
1284	pCtxCore = CPUMGetHyperCtxCore(pVM);
1285	}
1286	if (VBOX_FAILURE(rc))
1287	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Getting register context\n");
1288
1289	/*
1290	* Format the flags.
1291	*/
1292	static struct
1293	{
1294	const char pszSet; const char pszClear; uint32_t fFlag;
1295	} aFlags[] =
1296	{
1297	{ "vip",NULL, X86_EFL_VIP },
1298	{ "vif",NULL, X86_EFL_VIF },
1299	{ "ac", NULL, X86_EFL_AC },
1300	{ "vm", NULL, X86_EFL_VM },
1301	{ "rf", NULL, X86_EFL_RF },
1302	{ "nt", NULL, X86_EFL_NT },
1303	{ "ov", "nv", X86_EFL_OF },
1304	{ "dn", "up", X86_EFL_DF },
1305	{ "ei", "di", X86_EFL_IF },
1306	{ "tf", NULL, X86_EFL_TF },
1307	{ "ng", "pl", X86_EFL_SF },
1308	{ "zr", "nz", X86_EFL_ZF },
1309	{ "ac", "na", X86_EFL_AF },
1310	{ "po", "pe", X86_EFL_PF },
1311	{ "cy", "nc", X86_EFL_CF },
1312	};
1313	char szEFlags[80];
1314	char *psz = szEFlags;
1315	uint32_t efl = pCtxCore->eflags.u32;
1316	for (unsigned i = 0; i < ELEMENTS(aFlags); i++)
1317	{
1318	const char *pszAdd = aFlags[i].fFlag & efl ? aFlags[i].pszSet : aFlags[i].pszClear;
1319	if (pszAdd)
1320	{
1321	strcpy(psz, pszAdd);
1322	psz += strlen(pszAdd);
1323	*psz++ = ' ';
1324	}
1325	}
1326	psz[-1] = '\0';
1327
1328
1329	/*
1330	* Format the registers.
1331	*/
1332	if (pDbgc->fRegTerse)
1333	{
1334	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1335	"%seax=%08x %sebx=%08x %secx=%08x %sedx=%08x %sesi=%08x %sedi=%08x\n"
1336	"%seip=%08x %sesp=%08x %sebp=%08x %siopl=%d %*s\n"
1337	"%scs=%04x %sds=%04x %ses=%04x %sfs=%04x %sgs=%04x %sss=%04x %seflags=%08x\n",
1338	pszPrefix, pCtxCore->eax, pszPrefix, pCtxCore->ebx, pszPrefix, pCtxCore->ecx, pszPrefix, pCtxCore->edx, pszPrefix, pCtxCore->esi, pszPrefix, pCtxCore->edi,
1339	pszPrefix, pCtxCore->eip, pszPrefix, pCtxCore->esp, pszPrefix, pCtxCore->ebp, pszPrefix, X86_EFL_GET_IOPL(efl), *pszPrefix ? 34 : 31, szEFlags,
1340	pszPrefix, (RTSEL)pCtxCore->cs, pszPrefix, (RTSEL)pCtxCore->ds, pszPrefix, (RTSEL)pCtxCore->es,
1341	pszPrefix, (RTSEL)pCtxCore->fs, pszPrefix, (RTSEL)pCtxCore->gs, pszPrefix, (RTSEL)pCtxCore->ss, pszPrefix, efl);
1342	}
1343	else
1344	{
1345	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1346	"%seax=%08x %sebx=%08x %secx=%08x %sedx=%08x %sesi=%08x %sedi=%08x\n"
1347	"%seip=%08x %sesp=%08x %sebp=%08x %siopl=%d %*s\n"
1348	"%scs={%04x base=%016RX64 limit=%08x flags=%08x} %sdr0=%016RX64 %sdr1=%016RX64\n"
1349	"%sds={%04x base=%016RX64 limit=%08x flags=%08x} %sdr2=%016RX64 %sdr3=%016RX64\n"
1350	"%ses={%04x base=%016RX64 limit=%08x flags=%08x} %sdr4=%016RX64 %sdr5=%016RX64\n"
1351	"%sfs={%04x base=%016RX64 limit=%08x flags=%08x} %sdr6=%016RX64 %sdr7=%016RX64\n"
1352	"%sgs={%04x base=%016RX64 limit=%08x flags=%08x} %scr0=%016RX64 %scr2=%016RX64\n"
1353	"%sss={%04x base=%016RX64 limit=%08x flags=%08x} %scr3=%016RX64 %scr4=%016RX64\n"
1354	"%sgdtr=%016RX64:%04x %sidtr=%016RX64:%04x %seflags=%08x\n"
1355	"%sldtr={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1356	"%str ={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1357	"%sSysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
1358	"%sFCW=%04x %sFSW=%04x %sFTW=%04x\n"
1359	,
1360	pszPrefix, pCtxCore->eax, pszPrefix, pCtxCore->ebx, pszPrefix, pCtxCore->ecx, pszPrefix, pCtxCore->edx, pszPrefix, pCtxCore->esi, pszPrefix, pCtxCore->edi,
1361	pszPrefix, pCtxCore->eip, pszPrefix, pCtxCore->esp, pszPrefix, pCtxCore->ebp, pszPrefix, X86_EFL_GET_IOPL(efl), *pszPrefix ? 33 : 31, szEFlags,
1362	pszPrefix, (RTSEL)pCtxCore->cs, pCtx->csHid.u64Base, pCtx->csHid.u32Limit, pCtx->csHid.Attr.u, pszPrefix, pCtx->dr0, pszPrefix, pCtx->dr1,
1363	pszPrefix, (RTSEL)pCtxCore->ds, pCtx->dsHid.u64Base, pCtx->dsHid.u32Limit, pCtx->dsHid.Attr.u, pszPrefix, pCtx->dr2, pszPrefix, pCtx->dr3,
1364	pszPrefix, (RTSEL)pCtxCore->es, pCtx->esHid.u64Base, pCtx->esHid.u32Limit, pCtx->esHid.Attr.u, pszPrefix, pCtx->dr4, pszPrefix, pCtx->dr5,
1365	pszPrefix, (RTSEL)pCtxCore->fs, pCtx->fsHid.u64Base, pCtx->fsHid.u32Limit, pCtx->fsHid.Attr.u, pszPrefix, pCtx->dr6, pszPrefix, pCtx->dr7,
1366	pszPrefix, (RTSEL)pCtxCore->gs, pCtx->gsHid.u64Base, pCtx->gsHid.u32Limit, pCtx->gsHid.Attr.u, pszPrefix, pCtx->cr0, pszPrefix, pCtx->cr2,
1367	pszPrefix, (RTSEL)pCtxCore->ss, pCtx->ssHid.u64Base, pCtx->ssHid.u32Limit, pCtx->ssHid.Attr.u, pszPrefix, pCtx->cr3, pszPrefix, pCtx->cr4,
1368	pszPrefix, pCtx->gdtr.pGdt,pCtx->gdtr.cbGdt, pszPrefix, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, pszPrefix, pCtxCore->eflags,
1369	pszPrefix, (RTSEL)pCtx->ldtr, pCtx->ldtrHid.u64Base, pCtx->ldtrHid.u32Limit, pCtx->ldtrHid.Attr.u,
1370	pszPrefix, (RTSEL)pCtx->tr, pCtx->trHid.u64Base, pCtx->trHid.u32Limit, pCtx->trHid.Attr.u,
1371	pszPrefix, pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp,
1372	pszPrefix, pCtx->fpu.FCW, pszPrefix, pCtx->fpu.FSW, pszPrefix, pCtx->fpu.FTW);
1373	}
1374
1375	/*
1376	* Disassemble one instruction at cs:eip.
1377	*/
1378	return pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pCtx->cs, pCtx->eip);
1379	}
1380
1381	/*
1382	* cArgs == 1: Show the register.
1383	* cArgs == 2: Modify the register.
1384	*/
1385	if ( cArgs == 1
1386	\|\| cArgs == 2)
1387	{
1388	/* locate the register symbol. */
1389	const char *pszReg = paArgs[0].u.pszString;
1390	if ( *pszPrefix
1391	&& pszReg[0] != *pszPrefix)
1392	{
1393	/* prepend the prefix. */
1394	char psz = (char )alloca(strlen(pszReg) + 2);
1395	psz[0] = *pszPrefix;
1396	strcpy(psz + 1, paArgs[0].u.pszString);
1397	pszReg = psz;
1398	}
1399	PCDBGCSYM pSym = dbgcLookupRegisterSymbol(pDbgc, pszReg);
1400	if (!pSym)
1401	return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER /* VERR_DBGC_INVALID_REGISTER */, "Invalid register name '%s'.\n", pszReg);
1402
1403	/* show the register */
1404	if (cArgs == 1)
1405	{
1406	DBGCVAR Var;
1407	memset(&Var, 0, sizeof(Var));
1408	int rc = pSym->pfnGet(pSym, pCmdHlp, DBGCVAR_TYPE_NUMBER, &Var);
1409	if (VBOX_FAILURE(rc))
1410	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Failed getting value for register '%s'.\n", pszReg);
1411	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s=%Dv\n", pszReg, &Var);
1412	}
1413
1414	/* change the register */
1415	int rc = pSym->pfnSet(pSym, pCmdHlp, &paArgs[1]);
1416	if (VBOX_FAILURE(rc))
1417	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Failed setting value for register '%s'.\n", pszReg);
1418	return VINF_SUCCESS;
1419	}
1420
1421
1422	NOREF(pCmd); NOREF(paArgs); NOREF(pResult);
1423	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1424	}
1425
1426
1427	/**
1428	* The 'rg' command.
1429	*
1430	* @returns VBox status.
1431	* @param pCmd Pointer to the command descriptor (as registered).
1432	* @param pCmdHlp Pointer to command helper functions.
1433	* @param pVM Pointer to the current VM (if any).
1434	* @param paArgs Pointer to (readonly) array of arguments.
1435	* @param cArgs Number of arguments in the array.
1436	*/
1437	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1438	{
1439	return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult, "");
1440	}
1441
1442
1443	/**
1444	* The 'rh' command.
1445	*
1446	* @returns VBox status.
1447	* @param pCmd Pointer to the command descriptor (as registered).
1448	* @param pCmdHlp Pointer to command helper functions.
1449	* @param pVM Pointer to the current VM (if any).
1450	* @param paArgs Pointer to (readonly) array of arguments.
1451	* @param cArgs Number of arguments in the array.
1452	*/
1453	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1454	{
1455	return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult, ".");
1456	}
1457
1458
1459	/**
1460	* The 'rt' command.
1461	*
1462	* @returns VBox status.
1463	* @param pCmd Pointer to the command descriptor (as registered).
1464	* @param pCmdHlp Pointer to command helper functions.
1465	* @param pVM Pointer to the current VM (if any).
1466	* @param paArgs Pointer to (readonly) array of arguments.
1467	* @param cArgs Number of arguments in the array.
1468	*/
1469	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1470	{
1471	NOREF(pCmd); NOREF(pVM); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1472
1473	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1474	pDbgc->fRegTerse = !pDbgc->fRegTerse;
1475	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1476	}
1477
1478
1479	/**
1480	* The 't' command.
1481	*
1482	* @returns VBox status.
1483	* @param pCmd Pointer to the command descriptor (as registered).
1484	* @param pCmdHlp Pointer to command helper functions.
1485	* @param pVM Pointer to the current VM (if any).
1486	* @param paArgs Pointer to (readonly) array of arguments.
1487	* @param cArgs Number of arguments in the array.
1488	*/
1489	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1490	{
1491	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1492
1493	int rc = DBGFR3Step(pVM);
1494	if (VBOX_SUCCESS(rc))
1495	pDbgc->fReady = false;
1496	else
1497	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1498
1499	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1500	return rc;
1501	}
1502
1503
1504	/**
1505	* The 'k', 'kg' and 'kh' commands.
1506	*
1507	* @returns VBox status.
1508	* @param pCmd Pointer to the command descriptor (as registered).
1509	* @param pCmdHlp Pointer to command helper functions.
1510	* @param pVM Pointer to the current VM (if any).
1511	* @param paArgs Pointer to (readonly) array of arguments.
1512	* @param cArgs Number of arguments in the array.
1513	*/
1514	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1515	{
1516	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1517
1518	/*
1519	* Figure which context we're called for.
1520	*/
1521	bool fGuest = pCmd->pszCmd[1] == 'g'
1522	\|\| (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1523
1524
1525	DBGFSTACKFRAME Frame;
1526	memset(&Frame, 0, sizeof(Frame));
1527	int rc;
1528	if (fGuest)
1529	rc = DBGFR3StackWalkBeginGuest(pVM, &Frame);
1530	else
1531	rc = DBGFR3StackWalkBeginHyper(pVM, &Frame);
1532	if (VBOX_FAILURE(rc))
1533	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to begin stack walk, rc=%Vrc\n", rc);
1534
1535	/*
1536	* Print header.
1537	* 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1538	*/
1539	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1540	if (VBOX_FAILURE(rc))
1541	return rc;
1542	do
1543	{
1544	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1545	(uint32_t)Frame.AddrFrame.off,
1546	(uint32_t)Frame.AddrReturnFrame.off,
1547	(uint32_t)Frame.AddrReturnPC.Sel,
1548	(uint32_t)Frame.AddrReturnPC.off,
1549	Frame.Args.au32[0],
1550	Frame.Args.au32[1],
1551	Frame.Args.au32[2],
1552	Frame.Args.au32[3]);
1553	if (VBOX_FAILURE(rc))
1554	return rc;
1555	if (!Frame.pSymPC)
1556	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %RTsel:%08RGv", Frame.AddrPC.Sel, Frame.AddrPC.off);
1557	else
1558	{
1559	RTGCINTPTR offDisp = Frame.AddrPC.FlatPtr - Frame.pSymPC->Value; /** @todo this isn't 100% correct for segemnted stuff. */
1560	if (offDisp > 0)
1561	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s+%llx", Frame.pSymPC->szName, (int64_t)offDisp);
1562	else if (offDisp < 0)
1563	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s-%llx", Frame.pSymPC->szName, -(int64_t)offDisp);
1564	else
1565	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s", Frame.pSymPC->szName);
1566	}
1567	if (VBOX_SUCCESS(rc) && Frame.pLinePC)
1568	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " [%s @ 0i%d]", Frame.pLinePC->szFilename, Frame.pLinePC->uLineNo);
1569	if (VBOX_SUCCESS(rc))
1570	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
1571	if (VBOX_FAILURE(rc))
1572	return rc;
1573
1574	/* next */
1575	rc = DBGFR3StackWalkNext(pVM, &Frame);
1576	} while (VBOX_SUCCESS(rc));
1577
1578	NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1579	return VINF_SUCCESS;
1580	}
1581
1582
1583	static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP /pCmdHlp/, PCX86DESC64 /pDesc/, unsigned /iEntry/, bool /* fHyper /, bool /fDblEntry/)
1584	{
1585	/* GUEST64 */
1586	return VINF_SUCCESS;
1587	}
1588
1589
1590	/**
1591	* Wroker function that displays one descriptor entry (GDT, LDT, IDT).
1592	*
1593	* @returns pfnPrintf status code.
1594	* @param pCmdHlp The DBGC command helpers.
1595	* @param pDesc The descriptor to display.
1596	* @param iEntry The descriptor entry number.
1597	* @param fHyper Whether the selector belongs to the hypervisor or not.
1598	*/
1599	static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1600	{
1601	int rc;
1602
1603	const char *pszHyper = fHyper ? " HYPER" : "";
1604	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1605	if (pDesc->Gen.u1DescType)
1606	{
1607	static const char * const s_apszTypes[] =
1608	{
1609	"DataRO", /* 0 Read-Only */
1610	"DataRO", /* 1 Read-Only - Accessed */
1611	"DataRW", /* 2 Read/Write */
1612	"DataRW", /* 3 Read/Write - Accessed */
1613	"DownRO", /* 4 Expand-down, Read-Only */
1614	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1615	"DownRW", /* 6 Expand-down, Read/Write */
1616	"DownRO", /* 7 Expand-down, Read/Write - Accessed */
1617	"CodeEO", /* 8 Execute-Only */
1618	"CodeEO", /* 9 Execute-Only - Accessed */
1619	"CodeER", /* A Execute/Readable */
1620	"CodeER", /* B Execute/Readable - Accessed */
1621	"ConfE0", /* C Conforming, Execute-Only */
1622	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1623	"ConfER", /* E Conforming, Execute/Readable */
1624	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1625	};
1626	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1627	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1628	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1629	uint32_t u32Base = pDesc->Gen.u16BaseLow
1630	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1631	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1632	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1633	if (pDesc->Gen.u1Granularity)
1634	cbLimit <<= PAGE_SHIFT;
1635
1636	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1637	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1638	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1639	pDesc->Gen.u1Available, pDesc->Gen.u1Reserved, pszHyper);
1640	}
1641	else
1642	{
1643	static const char * const s_apszTypes[] =
1644	{
1645	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1646	"Tss16A", /* 1 0001 Available 16-bit TSS */
1647	"LDT ", /* 2 0010 LDT */
1648	"Tss16B", /* 3 0011 Busy 16-bit TSS */
1649	"Call16", /* 4 0100 16-bit Call Gate */
1650	"TaskG ", /* 5 0101 Task Gate */
1651	"Int16 ", /* 6 0110 16-bit Interrupt Gate */
1652	"Trap16", /* 7 0111 16-bit Trap Gate */
1653	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1654	"Tss32A", /* 9 1001 Available 32-bit TSS */
1655	"Ill-A ", /* A 1010 Reserved (Illegal) */
1656	"Tss32B", /* B 1011 Busy 32-bit TSS */
1657	"Call32", /* C 1100 32-bit Call Gate */
1658	"Ill-D ", /* D 1101 Reserved (Illegal) */
1659	"Int32 ", /* E 1110 32-bit Interrupt Gate */
1660	"Trap32" /* F 1111 32-bit Trap Gate */
1661	};
1662	switch (pDesc->Gen.u4Type)
1663	{
1664	/* raw */
1665	case X86_SEL_TYPE_SYS_UNDEFINED:
1666	case X86_SEL_TYPE_SYS_UNDEFINED2:
1667	case X86_SEL_TYPE_SYS_UNDEFINED4:
1668	case X86_SEL_TYPE_SYS_UNDEFINED3:
1669	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1670	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1671	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1672	break;
1673
1674	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1675	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1676	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1677	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1678	case X86_SEL_TYPE_SYS_LDT:
1679	{
1680	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1681	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1682	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1683	uint32_t u32Base = pDesc->Gen.u16BaseLow
1684	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1685	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1686	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1687	if (pDesc->Gen.u1Granularity)
1688	cbLimit <<= PAGE_SHIFT;
1689
1690	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1691	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1692	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1693	pDesc->Gen.u1Available, pDesc->Gen.u1Reserved \| (pDesc->Gen.u1DefBig << 1),
1694	pszHyper);
1695	break;
1696	}
1697
1698	case X86_SEL_TYPE_SYS_TASK_GATE:
1699	{
1700	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s TSS=%04x DPL=%d %s%s\n",
1701	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1702	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1703	break;
1704	}
1705
1706	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1707	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1708	{
1709	unsigned cParams = pDesc->au8[0] & 0x1f;
1710	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1711	RTSEL sel = pDesc->au16[1];
1712	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
1713	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
1714	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1715	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1716	break;
1717	}
1718
1719	case X86_SEL_TYPE_SYS_286_INT_GATE:
1720	case X86_SEL_TYPE_SYS_386_INT_GATE:
1721	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1722	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1723	{
1724	RTSEL sel = pDesc->au16[1];
1725	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
1726	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
1727	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1728	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1729	break;
1730	}
1731
1732	/* impossible, just it's necessary to keep gcc happy. */
1733	default:
1734	return VINF_SUCCESS;
1735	}
1736	}
1737	return rc;
1738	}
1739
1740
1741	/**
1742	* The 'dg', 'dga', 'dl' and 'dla' commands.
1743	*
1744	* @returns VBox status.
1745	* @param pCmd Pointer to the command descriptor (as registered).
1746	* @param pCmdHlp Pointer to command helper functions.
1747	* @param pVM Pointer to the current VM (if any).
1748	* @param paArgs Pointer to (readonly) array of arguments.
1749	* @param cArgs Number of arguments in the array.
1750	*/
1751	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1752	{
1753	/*
1754	* Validate input.
1755	*/
1756	if (!pVM)
1757	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
1758
1759	/*
1760	* Get the CPU mode, check which command variation this is
1761	* and fix a default parameter if needed.
1762	*/
1763	CPUMMODE enmMode = CPUMGetGuestMode(pVM);
1764	bool fGdt = pCmd->pszCmd[1] == 'g';
1765	bool fAll = pCmd->pszCmd[2] == 'a';
1766
1767	DBGCVAR Var;
1768	if (!cArgs)
1769	{
1770	cArgs = 1;
1771	paArgs = &Var;
1772	Var.enmType = DBGCVAR_TYPE_NUMBER;
1773	Var.u.u64Number = fGdt ? 0 : 4;
1774	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1775	Var.u64Range = 1024;
1776	}
1777
1778	/*
1779	* Process the arguments.
1780	*/
1781	for (unsigned i = 0; i < cArgs; i++)
1782	{
1783	/*
1784	* Retrive the selector value from the argument.
1785	* The parser may confuse pointers and numbers if more than one
1786	* argument is given, that that into account.
1787	*/
1788	/* check that what've got makes sense as we don't trust the parser yet. */
1789	if ( paArgs[i].enmType != DBGCVAR_TYPE_NUMBER
1790	&& !DBGCVAR_ISPOINTER(paArgs[i].enmType))
1791	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number or pointer type but %d.\n", i, paArgs[i].enmType);
1792	uint64_t u64;
1793	unsigned cSels = 1;
1794	switch (paArgs[i].enmType)
1795	{
1796	case DBGCVAR_TYPE_NUMBER:
1797	u64 = paArgs[i].u.u64Number;
1798	if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
1799	cSels = RT_MIN(paArgs[i].u64Range, 1024);
1800	break;
1801	case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
1802	case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
1803	case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
1804	case DBGCVAR_TYPE_HC_FAR: u64 = paArgs[i].u.HCFar.sel; break;
1805	case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
1806	case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
1807	default: u64 = _64K; break;
1808	}
1809	if (u64 < _64K)
1810	{
1811	unsigned Sel = (RTSEL)u64;
1812
1813	/*
1814	* Dump the specified range.
1815	*/
1816	bool fSingle = cSels == 1;
1817	while ( cSels-- > 0
1818	&& Sel < _64K)
1819	{
1820	SELMSELINFO SelInfo;
1821	int rc = SELMR3GetSelectorInfo(pVM, Sel, &SelInfo);
1822	if (RT_SUCCESS(rc))
1823	{
1824	if (SelInfo.fRealMode)
1825	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x RealM Bas=%04x Lim=%04x\n",
1826	Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
1827	else if (fAll \|\| fSingle \|\| SelInfo.Raw.Gen.u1Present)
1828	{
1829	if (enmMode == CPUMMODE_PROTECTED)
1830	rc = dbgcCmdDumpDTWorker32(pCmdHlp, (PX86DESC)&SelInfo.Raw, Sel, SelInfo.fHyper);
1831	else
1832	{
1833	bool fDblSkip = false;
1834	rc = dbgcCmdDumpDTWorker64(pCmdHlp, (PX86DESC64)&SelInfo.Raw, Sel, SelInfo.fHyper, &fDblSkip);
1835	if (fDblSkip)
1836	Sel += 4;
1837	}
1838	}
1839	}
1840	else
1841	{
1842	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %Vrc\n", Sel, rc);
1843	if (!fAll)
1844	return rc;
1845	}
1846	if (RT_FAILURE(rc))
1847	return rc;
1848
1849	/* next */
1850	Sel += 4;
1851	}
1852	}
1853	else
1854	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds\n", u64);
1855	}
1856
1857	NOREF(pResult);
1858	return VINF_SUCCESS;
1859	}
1860
1861
1862	/**
1863	* The 'di' and 'dia' commands.
1864	*
1865	* @returns VBox status.
1866	* @param pCmd Pointer to the command descriptor (as registered).
1867	* @param pCmdHlp Pointer to command helper functions.
1868	* @param pVM Pointer to the current VM (if any).
1869	* @param paArgs Pointer to (readonly) array of arguments.
1870	* @param cArgs Number of arguments in the array.
1871	*/
1872	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1873	{
1874	/*
1875	* Validate input.
1876	*/
1877	if (!pVM)
1878	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
1879
1880	/*
1881	* Establish some stuff like the current IDTR and CPU mode,
1882	* and fix a default parameter.
1883	*/
1884	uint16_t cbLimit;
1885	RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVM, &cbLimit);
1886	CPUMMODE enmMode = CPUMGetGuestMode(pVM);
1887	unsigned cbEntry;
1888	switch (enmMode)
1889	{
1890	case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
1891	case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
1892	case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
1893	default:
1894	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid CPU mode %d.\n", enmMode);
1895	}
1896
1897	bool fAll = pCmd->pszCmd[2] == 'a';
1898	DBGCVAR Var;
1899	if (!cArgs)
1900	{
1901	cArgs = 1;
1902	paArgs = &Var;
1903	Var.enmType = DBGCVAR_TYPE_NUMBER;
1904	Var.u.u64Number = 0;
1905	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1906	Var.u64Range = 256;
1907	}
1908
1909	/*
1910	* Process the arguments.
1911	*/
1912	for (unsigned i = 0; i < cArgs; i++)
1913	{
1914	/* check that what've got makes sense as we don't trust the parser yet. */
1915	if (paArgs[i].enmType != DBGCVAR_TYPE_NUMBER)
1916	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number type but %d.\n", i, paArgs[i].enmType);
1917	if (paArgs[i].u.u64Number < 256)
1918	{
1919	RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
1920	unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
1921	? paArgs[i].u64Range
1922	: 1;
1923	bool fSingle = cInts == 1;
1924	while ( cInts-- > 0
1925	&& iInt < 256)
1926	{
1927	/*
1928	* Try read it.
1929	*/
1930	union
1931	{
1932	RTFAR16 Real;
1933	X86DESC Prot;
1934	X86DESC64 Long;
1935	} u;
1936	if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
1937	{
1938	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x not within the IDT\n", (unsigned)iInt);
1939	if (!fAll && !fSingle)
1940	return VINF_SUCCESS;
1941	}
1942	DBGCVAR AddrVar;
1943	AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
1944	AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
1945	AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
1946	int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &u, cbEntry, &AddrVar, NULL);
1947	if (VBOX_FAILURE(rc))
1948	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
1949
1950	/*
1951	* Display it.
1952	*/
1953	switch (enmMode)
1954	{
1955	case CPUMMODE_REAL:
1956	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
1957	/** @todo resolve 16:16 IDTE to a symbol */
1958	break;
1959	case CPUMMODE_PROTECTED:
1960	if (fAll \|\| fSingle \|\| u.Prot.Gen.u1Present)
1961	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
1962	break;
1963	case CPUMMODE_LONG:
1964	if (fAll \|\| fSingle \|\| u.Long.Gen.u1Present)
1965	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
1966	break;
1967	default: break; /* to shut up gcc */
1968	}
1969	if (RT_FAILURE(rc))
1970	return rc;
1971
1972	/* next */
1973	iInt++;
1974	}
1975	}
1976	else
1977	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
1978	}
1979
1980	NOREF(pResult);
1981	return VINF_SUCCESS;
1982	}
1983
1984
1985	/**
1986	* The 'da', 'dq', 'dd', 'dw' and 'db' commands.
1987	*
1988	* @returns VBox status.
1989	* @param pCmd Pointer to the command descriptor (as registered).
1990	* @param pCmdHlp Pointer to command helper functions.
1991	* @param pVM Pointer to the current VM (if any).
1992	* @param paArgs Pointer to (readonly) array of arguments.
1993	* @param cArgs Number of arguments in the array.
1994	*/
1995	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1996	{
1997	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1998
1999	/*
2000	* Validate input.
2001	*/
2002	if ( cArgs > 1
2003	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2004	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2005	if (!pVM)
2006	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2007
2008	/*
2009	* Figure out the element size.
2010	*/
2011	unsigned cbElement;
2012	bool fAscii = false;
2013	switch (pCmd->pszCmd[1])
2014	{
2015	default:
2016	case 'b': cbElement = 1; break;
2017	case 'w': cbElement = 2; break;
2018	case 'd': cbElement = 4; break;
2019	case 'q': cbElement = 8; break;
2020	case 'a':
2021	cbElement = 1;
2022	fAscii = true;
2023	break;
2024	case '\0':
2025	fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2026	cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2027	if (!cbElement)
2028	cbElement = 1;
2029	break;
2030	}
2031
2032	/*
2033	* Find address.
2034	*/
2035	if (!cArgs)
2036	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2037	else
2038	pDbgc->DumpPos = paArgs[0];
2039
2040	/*
2041	* Range.
2042	*/
2043	switch (pDbgc->DumpPos.enmRangeType)
2044	{
2045	case DBGCVAR_RANGE_NONE:
2046	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2047	pDbgc->DumpPos.u64Range = 0x60;
2048	break;
2049
2050	case DBGCVAR_RANGE_ELEMENTS:
2051	if (pDbgc->DumpPos.u64Range > 2048)
2052	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many elements requested. Max is 2048 elements.\n");
2053	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2054	pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2055	break;
2056
2057	case DBGCVAR_RANGE_BYTES:
2058	if (pDbgc->DumpPos.u64Range > 65536)
2059	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
2060	break;
2061
2062	default:
2063	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2064	}
2065
2066	/*
2067	* Do the dumping.
2068	*/
2069	pDbgc->cbDumpElement = cbElement \| (fAscii << 31);
2070	int cbLeft = (int)pDbgc->DumpPos.u64Range;
2071	uint8_t u8Prev = '\0';
2072	for (;;)
2073	{
2074	/*
2075	* Read memory.
2076	*/
2077	char achBuffer[16];
2078	size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2079	size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2080	int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2081	if (VBOX_FAILURE(rc))
2082	{
2083	if (u8Prev && u8Prev != '\n')
2084	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2085	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2086	}
2087
2088	/*
2089	* Display it.
2090	*/
2091	memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2092	if (!fAscii)
2093	{
2094	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:", &pDbgc->DumpPos);
2095	unsigned i;
2096	for (i = 0; i < cb; i += cbElement)
2097	{
2098	const char *pszSpace = " ";
2099	if (cbElement <= 2 && i == 8 && !fAscii)
2100	pszSpace = "-";
2101	switch (cbElement)
2102	{
2103	case 1: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%02x", pszSpace, (uint8_t )&achBuffer[i]); break;
2104	case 2: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%04x", pszSpace, (uint16_t )&achBuffer[i]); break;
2105	case 4: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%08x", pszSpace, (uint32_t )&achBuffer[i]); break;
2106	case 8: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%016llx", pszSpace, (uint64_t )&achBuffer[i]); break;
2107	}
2108	}
2109
2110	/* chars column */
2111	if (pDbgc->cbDumpElement == 1)
2112	{
2113	while (i++ < sizeof(achBuffer))
2114	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2115	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2116	for (i = 0; i < cb; i += cbElement)
2117	{
2118	uint8_t u8 = (uint8_t )&achBuffer[i];
2119	if (isprint(u8) && u8 < 127 && u8 >= 32)
2120	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2121	else
2122	pCmdHlp->pfnPrintf(pCmdHlp, NULL, ".");
2123	}
2124	}
2125	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2126	}
2127	else
2128	{
2129	/*
2130	* We print up to the first zero and stop there.
2131	* Only printables + '\t' and '\n' are printed.
2132	*/
2133	if (!u8Prev)
2134	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DumpPos);
2135	uint8_t u8 = '\0';
2136	unsigned i;
2137	for (i = 0; i < cb; i++)
2138	{
2139	u8Prev = u8;
2140	u8 = (uint8_t )&achBuffer[i];
2141	if ( u8 < 127
2142	&& ( (isprint(u8) && u8 >= 32)
2143	\|\| u8 == '\t'
2144	\|\| u8 == '\n'))
2145	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2146	else if (!u8)
2147	break;
2148	else
2149	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\\x%x", u8);
2150	}
2151	if (u8 == '\0')
2152	cb = cbLeft = i + 1;
2153	if (cbLeft - cb <= 0 && u8Prev != '\n')
2154	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2155	}
2156
2157	/*
2158	* Advance
2159	*/
2160	cbLeft -= (int)cb;
2161	rc = pCmdHlp->pfnEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2162	if (VBOX_FAILURE(rc))
2163	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2164	if (cbLeft <= 0)
2165	break;
2166	}
2167
2168	NOREF(pCmd); NOREF(pResult);
2169	return VINF_SUCCESS;
2170	}
2171
2172
2173	/**
2174	* Best guess at which paging mode currently applies to the guest
2175	* paging structures.
2176	*
2177	* This have to come up with a decent answer even when the guest
2178	* is in non-paged protected mode or real mode.
2179	*
2180	* @returns cr3.
2181	* @param pDbgc The DBGC instance.
2182	* @param pfPAE Where to store the page address extension indicator.
2183	* @param pfLME Where to store the long mode enabled indicator.
2184	* @param pfPSE Where to store the page size extension indicator.
2185	* @param pfPGE Where to store the page global enabled indicator.
2186	* @param pfNXE Where to store the no-execution enabled inidicator.
2187	*/
2188	static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2189	{
2190	RTGCUINTREG cr4 = CPUMGetGuestCR4(pDbgc->pVM);
2191	*pfPSE = !!(cr4 & X86_CR4_PSE);
2192	*pfPGE = !!(cr4 & X86_CR4_PGE);
2193	*pfPAE = !!(cr4 & X86_CR4_PAE);
2194	*pfLME = CPUMGetGuestMode(pDbgc->pVM) == CPUMMODE_LONG;
2195	pfNXE = false; / GUEST64 GUESTNX */
2196	return CPUMGetGuestCR3(pDbgc->pVM);
2197	}
2198
2199
2200	/**
2201	* Determin the shadow paging mode.
2202	*
2203	* @returns cr3.
2204	* @param pDbgc The DBGC instance.
2205	* @param pfPAE Where to store the page address extension indicator.
2206	* @param pfLME Where to store the long mode enabled indicator.
2207	* @param pfPSE Where to store the page size extension indicator.
2208	* @param pfPGE Where to store the page global enabled indicator.
2209	* @param pfNXE Where to store the no-execution enabled inidicator.
2210	*/
2211	static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2212	{
2213	*pfPSE = true;
2214	*pfPGE = false;
2215	switch (PGMGetShadowMode(pDbgc->pVM))
2216	{
2217	default:
2218	case PGMMODE_32_BIT:
2219	pfPAE = pfLME = *pfNXE = false;
2220	break;
2221	case PGMMODE_PAE:
2222	pfLME = pfNXE = false;
2223	*pfPAE = true;
2224	break;
2225	case PGMMODE_PAE_NX:
2226	*pfLME = false;
2227	pfPAE = pfNXE = true;
2228	break;
2229	case PGMMODE_AMD64:
2230	*pfNXE = false;
2231	pfPAE = pfLME = true;
2232	break;
2233	case PGMMODE_AMD64_NX:
2234	pfPAE = pfLME = *pfNXE = true;
2235	break;
2236	}
2237	return PGMGetHyperCR3(pDbgc->pVM);
2238	}
2239
2240
2241	/**
2242	* The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh' commands.
2243	*
2244	* @returns VBox status.
2245	* @param pCmd Pointer to the command descriptor (as registered).
2246	* @param pCmdHlp Pointer to command helper functions.
2247	* @param pVM Pointer to the current VM (if any).
2248	* @param paArgs Pointer to (readonly) array of arguments.
2249	* @param cArgs Number of arguments in the array.
2250	*/
2251	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2252	{
2253	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2254
2255	/*
2256	* Validate input.
2257	*/
2258	if ( cArgs > 1
2259	\|\| (cArgs == 1 && pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2260	\|\| (cArgs == 1 && pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2261	)
2262	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2263	if (!pVM)
2264	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2265
2266	/*
2267	* Guest or shadow page directories? Get the paging parameters.
2268	*/
2269	bool fGuest = pCmd->pszCmd[3] != 'h';
2270	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2271	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2272	? pDbgc->fRegCtxGuest
2273	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2274
2275	bool fPAE, fLME, fPSE, fPGE, fNXE;
2276	uint64_t cr3 = fGuest
2277	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2278	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2279	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2280
2281	/*
2282	* Setup default arugment if none was specified.
2283	* Fix address / index confusion.
2284	*/
2285	DBGCVAR VarDefault;
2286	if (!cArgs)
2287	{
2288	if (pCmd->pszCmd[3] == 'a')
2289	{
2290	if (fLME \|\| fPAE)
2291	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");
2292	if (fGuest)
2293	DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2294	else
2295	DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2296	}
2297	else
2298	DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2299	paArgs = &VarDefault;
2300	cArgs = 1;
2301	}
2302	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2303	{
2304	Assert(pCmd->pszCmd[3] != 'a');
2305	VarDefault = paArgs[0];
2306	if (VarDefault.u.u64Number <= 1024)
2307	{
2308	if (fPAE)
2309	return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2310	if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2311	return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2312	VarDefault.u.u64Number <<= X86_PD_SHIFT;
2313	}
2314	VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2315	paArgs = &VarDefault;
2316	}
2317
2318	/*
2319	* Locate the PDE to start displaying at.
2320	*
2321	* The 'dpda' command takes the address of a PDE, while the others are guest
2322	* virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2323	* while the others require us to do all the tedious walking thru the paging
2324	* hierarchy to find the intended PDE.
2325	*/
2326	unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2327	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2328	DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2329	unsigned cEntries; /* The number of entries to display. */
2330	unsigned cEntriesMax; /* The max number of entries to display. */
2331	int rc;
2332	if (pCmd->pszCmd[3] == 'a')
2333	{
2334	VarPDEAddr = paArgs[0];
2335	switch (VarPDEAddr.enmRangeType)
2336	{
2337	case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2338	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2339	default: cEntries = 10; break;
2340	}
2341	cEntriesMax = PAGE_SIZE / cbEntry;
2342	}
2343	else
2344	{
2345	/*
2346	* Determin the range.
2347	*/
2348	switch (paArgs[0].enmRangeType)
2349	{
2350	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2351	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2352	default: cEntries = 10; break;
2353	}
2354
2355	/*
2356	* Normalize the input address, it must be a flat GC address.
2357	*/
2358	rc = pCmdHlp->pfnEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2359	if (VBOX_FAILURE(rc))
2360	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2361	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2362	{
2363	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2364	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2365	}
2366	if (fPAE)
2367	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2368	else
2369	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2370
2371	/*
2372	* Do the paging walk until we get to the page directory.
2373	*/
2374	DBGCVAR VarCur;
2375	if (fGuest)
2376	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2377	else
2378	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2379	if (fLME)
2380	{
2381	/* Page Map Level 4 Lookup. */
2382	/* Check if it's a valid address first? */
2383	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2384	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2385	X86PML4E Pml4e;
2386	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2387	if (VBOX_FAILURE(rc))
2388	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2389	if (!Pml4e.n.u1Present)
2390	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2391
2392	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2393	Assert(fPAE);
2394	}
2395	if (fPAE)
2396	{
2397	/* Page directory pointer table. */
2398	X86PDPE Pdpe;
2399	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2400	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2401	if (VBOX_FAILURE(rc))
2402	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2403	if (!Pdpe.n.u1Present)
2404	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2405
2406	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2407	VarPDEAddr = VarCur;
2408	VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2409	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2410	}
2411	else
2412	{
2413	/* 32-bit legacy - CR3 == page directory. */
2414	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2415	VarPDEAddr = VarCur;
2416	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2417	}
2418	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2419	iEntry /= cbEntry;
2420	}
2421
2422	/* adjust cEntries */
2423	cEntries = RT_MAX(1, cEntries);
2424	cEntries = RT_MIN(cEntries, cEntriesMax);
2425
2426	/*
2427	* The display loop.
2428	*/
2429	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2430	&VarPDEAddr, iEntry);
2431	do
2432	{
2433	/*
2434	* Read.
2435	*/
2436	X86PDEPAE Pde;
2437	Pde.u = 0;
2438	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, cbEntry, &VarPDEAddr, NULL);
2439	if (VBOX_FAILURE(rc))
2440	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2441
2442	/*
2443	* Display.
2444	*/
2445	if (iEntry != ~0U)
2446	{
2447	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2448	iEntry++;
2449	}
2450	if (fPSE && Pde.b.u1Size)
2451	DBGCCmdHlpPrintf(pCmdHlp,
2452	fPAE
2453	? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2454	: "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2455	Pde.u,
2456	Pde.u & X86_PDE_PAE_PG_MASK,
2457	Pde.b.u1Present ? "p " : "np",
2458	Pde.b.u1Write ? "w" : "r",
2459	Pde.b.u1User ? "u" : "s",
2460	Pde.b.u1Accessed ? "a " : "na",
2461	Pde.b.u1Dirty ? "d " : "nd",
2462	Pde.b.u3Available,
2463	Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2464	Pde.b.u1WriteThru ? "pwt" : " ",
2465	Pde.b.u1CacheDisable ? "pcd" : " ",
2466	Pde.b.u1PAT ? "pat" : "",
2467	Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2468	else
2469	DBGCCmdHlpPrintf(pCmdHlp,
2470	fPAE
2471	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2472	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2473	Pde.u,
2474	Pde.u & X86_PDE_PAE_PG_MASK,
2475	Pde.n.u1Present ? "p " : "np",
2476	Pde.n.u1Write ? "w" : "r",
2477	Pde.n.u1User ? "u" : "s",
2478	Pde.n.u1Accessed ? "a " : "na",
2479	Pde.u & RT_BIT(6) ? "6 " : " ",
2480	Pde.n.u3Available,
2481	Pde.u & RT_BIT(8) ? "8" : " ",
2482	Pde.n.u1WriteThru ? "pwt" : " ",
2483	Pde.n.u1CacheDisable ? "pcd" : " ",
2484	Pde.u & RT_BIT(7) ? "7" : "",
2485	Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2486	if (Pde.u & UINT64_C(0x7fff000000000000))
2487	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2488	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2489	if (VBOX_FAILURE(rc))
2490	return rc;
2491
2492	/*
2493	* Advance.
2494	*/
2495	VarPDEAddr.u.u64Number += cbEntry;
2496	if (iEntry != ~0U)
2497	VarGCPtr.u.GCFlat += 1 << (fPAE ? X86_PD_PAE_SHIFT : X86_PD_SHIFT);
2498	} while (cEntries-- > 0);
2499
2500	NOREF(pResult);
2501	return VINF_SUCCESS;
2502	}
2503
2504
2505	/**
2506	* The 'dpdb' command.
2507	*
2508	* @returns VBox status.
2509	* @param pCmd Pointer to the command descriptor (as registered).
2510	* @param pCmdHlp Pointer to command helper functions.
2511	* @param pVM Pointer to the current VM (if any).
2512	* @param paArgs Pointer to (readonly) array of arguments.
2513	* @param cArgs Number of arguments in the array.
2514	*/
2515	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2516	{
2517	if (!pVM)
2518	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2519	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2520	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2521	if (VBOX_FAILURE(rc1))
2522	return rc1;
2523	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
2524	return rc2;
2525	}
2526
2527
2528	/**
2529	* The 'dpg*' commands.
2530	*
2531	* @returns VBox status.
2532	* @param pCmd Pointer to the command descriptor (as registered).
2533	* @param pCmdHlp Pointer to command helper functions.
2534	* @param pVM Pointer to the current VM (if any).
2535	* @param paArgs Pointer to (readonly) array of arguments.
2536	* @param cArgs Number of arguments in the array.
2537	*/
2538	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2539	{
2540	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2541
2542	/*
2543	* Validate input.
2544	*/
2545	if ( cArgs != 1
2546	\|\| (pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2547	\|\| (pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2548	)
2549	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2550	if (!pVM)
2551	return DBGCCmdHlpPrintf(pCmdHlp, "error: No VM.\n");
2552
2553	/*
2554	* Guest or shadow page tables? Get the paging parameters.
2555	*/
2556	bool fGuest = pCmd->pszCmd[3] != 'h';
2557	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2558	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2559	? pDbgc->fRegCtxGuest
2560	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2561
2562	bool fPAE, fLME, fPSE, fPGE, fNXE;
2563	uint64_t cr3 = fGuest
2564	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2565	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2566	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2567
2568	/*
2569	* Locate the PTE to start displaying at.
2570	*
2571	* The 'dpta' command takes the address of a PTE, while the others are guest
2572	* virtual address which PTEs should be displayed. So, 'pdta' is rather simple
2573	* while the others require us to do all the tedious walking thru the paging
2574	* hierarchy to find the intended PTE.
2575	*/
2576	unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
2577	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
2578	DBGCVAR VarPTEAddr; /* The address of the current PTE. */
2579	unsigned cEntries; /* The number of entries to display. */
2580	unsigned cEntriesMax; /* The max number of entries to display. */
2581	int rc;
2582	if (pCmd->pszCmd[3] == 'a')
2583	{
2584	VarPTEAddr = paArgs[0];
2585	switch (VarPTEAddr.enmRangeType)
2586	{
2587	case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
2588	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
2589	default: cEntries = 10; break;
2590	}
2591	cEntriesMax = PAGE_SIZE / cbEntry;
2592	}
2593	else
2594	{
2595	/*
2596	* Determin the range.
2597	*/
2598	switch (paArgs[0].enmRangeType)
2599	{
2600	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2601	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2602	default: cEntries = 10; break;
2603	}
2604
2605	/*
2606	* Normalize the input address, it must be a flat GC address.
2607	*/
2608	rc = pCmdHlp->pfnEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2609	if (VBOX_FAILURE(rc))
2610	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2611	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2612	{
2613	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2614	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2615	}
2616	VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
2617
2618	/*
2619	* Do the paging walk until we get to the page table.
2620	*/
2621	DBGCVAR VarCur;
2622	if (fGuest)
2623	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2624	else
2625	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2626	if (fLME)
2627	{
2628	/* Page Map Level 4 Lookup. */
2629	/* Check if it's a valid address first? */
2630	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2631	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2632	X86PML4E Pml4e;
2633	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2634	if (VBOX_FAILURE(rc))
2635	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2636	if (!Pml4e.n.u1Present)
2637	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2638
2639	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2640	Assert(fPAE);
2641	}
2642	if (fPAE)
2643	{
2644	/* Page directory pointer table. */
2645	X86PDPE Pdpe;
2646	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2647	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2648	if (VBOX_FAILURE(rc))
2649	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2650	if (!Pdpe.n.u1Present)
2651	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2652
2653	VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2654
2655	/* Page directory (PAE). */
2656	X86PDEPAE Pde;
2657	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
2658	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
2659	if (VBOX_FAILURE(rc))
2660	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
2661	if (!Pde.n.u1Present)
2662	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
2663	if (fPSE && Pde.n.u1Size)
2664	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
2665
2666	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
2667	VarPTEAddr = VarCur;
2668	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
2669	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
2670	}
2671	else
2672	{
2673	/* Page directory (legacy). */
2674	X86PDE Pde;
2675	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
2676	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
2677	if (VBOX_FAILURE(rc))
2678	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
2679	if (!Pde.n.u1Present)
2680	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
2681	if (fPSE && Pde.n.u1Size)
2682	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
2683
2684	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
2685	VarPTEAddr = VarCur;
2686	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
2687	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
2688	}
2689	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2690	iEntry /= cbEntry;
2691	}
2692
2693	/* adjust cEntries */
2694	cEntries = RT_MAX(1, cEntries);
2695	cEntries = RT_MIN(cEntries, cEntriesMax);
2696
2697	/*
2698	* The display loop.
2699	*/
2700	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
2701	&VarPTEAddr, &VarGCPtr, iEntry);
2702	do
2703	{
2704	/*
2705	* Read.
2706	*/
2707	X86PTEPAE Pte;
2708	Pte.u = 0;
2709	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pte, cbEntry, &VarPTEAddr, NULL);
2710	if (VBOX_FAILURE(rc))
2711	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
2712
2713	/*
2714	* Display.
2715	*/
2716	if (iEntry != ~0U)
2717	{
2718	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2719	iEntry++;
2720	}
2721	DBGCCmdHlpPrintf(pCmdHlp,
2722	fPAE
2723	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2724	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2725	Pte.u,
2726	Pte.u & X86_PTE_PAE_PG_MASK,
2727	Pte.n.u1Present ? "p " : "np",
2728	Pte.n.u1Write ? "w" : "r",
2729	Pte.n.u1User ? "u" : "s",
2730	Pte.n.u1Accessed ? "a " : "na",
2731	Pte.n.u1Dirty ? "d " : "nd",
2732	Pte.n.u3Available,
2733	Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
2734	Pte.n.u1WriteThru ? "pwt" : " ",
2735	Pte.n.u1CacheDisable ? "pcd" : " ",
2736	Pte.n.u1PAT ? "pat" : " ",
2737	Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
2738	);
2739	if (Pte.u & UINT64_C(0x7fff000000000000))
2740	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
2741	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2742	if (VBOX_FAILURE(rc))
2743	return rc;
2744
2745	/*
2746	* Advance.
2747	*/
2748	VarPTEAddr.u.u64Number += cbEntry;
2749	if (iEntry != ~0U)
2750	VarGCPtr.u.GCFlat += PAGE_SIZE;
2751	} while (cEntries-- > 0);
2752
2753	NOREF(pResult);
2754	return VINF_SUCCESS;
2755	}
2756
2757
2758	/**
2759	* The 'dptb' command.
2760	*
2761	* @returns VBox status.
2762	* @param pCmd Pointer to the command descriptor (as registered).
2763	* @param pCmdHlp Pointer to command helper functions.
2764	* @param pVM Pointer to the current VM (if any).
2765	* @param paArgs Pointer to (readonly) array of arguments.
2766	* @param cArgs Number of arguments in the array.
2767	*/
2768	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2769	{
2770	if (!pVM)
2771	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2772	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
2773	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
2774	if (VBOX_FAILURE(rc1))
2775	return rc1;
2776	NOREF(pCmd); NOREF(cArgs); NOREF(pResult);
2777	return rc2;
2778	}
2779
2780
2781	/**
2782	* The 'dt' command.
2783	*
2784	* @returns VBox status.
2785	* @param pCmd Pointer to the command descriptor (as registered).
2786	* @param pCmdHlp Pointer to command helper functions.
2787	* @param pVM Pointer to the current VM (if any).
2788	* @param paArgs Pointer to (readonly) array of arguments.
2789	* @param cArgs Number of arguments in the array.
2790	*/
2791	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD /pCmd/, PDBGCCMDHLP pCmdHlp, PVM /pVM/, PCDBGCVAR /paArgs/, unsigned /cArgs/, PDBGCVAR /pResult/)
2792	{
2793	/*
2794	* We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
2795	*/
2796
2797	/** @todo */
2798	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "dt is not implemented yet, feel free to do it. \n");
2799	}
2800
2801
2802	/**
2803	* The 'm' command.
2804	*
2805	* @returns VBox status.
2806	* @param pCmd Pointer to the command descriptor (as registered).
2807	* @param pCmdHlp Pointer to command helper functions.
2808	* @param pVM Pointer to the current VM (if any).
2809	* @param paArgs Pointer to (readonly) array of arguments.
2810	* @param cArgs Number of arguments in the array.
2811	*/
2812	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2813	{
2814	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Address: %DV\n", &paArgs[0]);
2815	if (!pVM)
2816	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2817	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2818	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2819	int rc3 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
2820	int rc4 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
2821	if (VBOX_FAILURE(rc1))
2822	return rc1;
2823	if (VBOX_FAILURE(rc2))
2824	return rc2;
2825	if (VBOX_FAILURE(rc3))
2826	return rc3;
2827	NOREF(pCmd); NOREF(cArgs); NOREF(pResult);
2828	return rc4;
2829	}
2830
2831
2832	/**
2833	* Converts one or more variables into a byte buffer for a
2834	* given unit size.
2835	*
2836	* @returns VBox status codes:
2837	* @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
2838	* @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
2839	* @retval VINF_SUCCESS on success.
2840	*
2841	* @param pvBuf The buffer to convert into.
2842	* @param pcbBuf The buffer size on input. The size of the result on output.
2843	* @param cbUnit The unit size to apply when converting.
2844	* The high bit is used to indicate unicode string.
2845	* @param paVars The array of variables to convert.
2846	* @param cVars The number of variables.
2847	*/
2848	int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void pvBuf, uint32_t pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
2849	{
2850	union
2851	{
2852	uint8_t *pu8;
2853	uint16_t *pu16;
2854	uint32_t *pu32;
2855	uint64_t *pu64;
2856	} u, uEnd;
2857	u.pu8 = (uint8_t *)pvBuf;
2858	uEnd.pu8 = u.pu8 + *pcbBuf;
2859
2860	unsigned i;
2861	for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
2862	{
2863	switch (paVars[i].enmType)
2864	{
2865	case DBGCVAR_TYPE_GC_FAR:
2866	case DBGCVAR_TYPE_HC_FAR:
2867	case DBGCVAR_TYPE_GC_FLAT:
2868	case DBGCVAR_TYPE_GC_PHYS:
2869	case DBGCVAR_TYPE_HC_FLAT:
2870	case DBGCVAR_TYPE_HC_PHYS:
2871	case DBGCVAR_TYPE_NUMBER:
2872	{
2873	uint64_t u64 = paVars[i].u.u64Number;
2874	switch (cbUnit & 0x1f)
2875	{
2876	case 1:
2877	do
2878	{
2879	*u.pu8++ = u64;
2880	u64 >>= 8;
2881	} while (u64);
2882	break;
2883	case 2:
2884	do
2885	{
2886	*u.pu16++ = u64;
2887	u64 >>= 16;
2888	} while (u64);
2889	break;
2890	case 4:
2891	*u.pu32++ = u64;
2892	u64 >>= 32;
2893	if (u64)
2894	*u.pu32++ = u64;
2895	break;
2896	case 8:
2897	*u.pu64++ = u64;
2898	break;
2899	}
2900	break;
2901	}
2902
2903	case DBGCVAR_TYPE_STRING:
2904	case DBGCVAR_TYPE_SYMBOL:
2905	{
2906	const char *psz = paVars[i].u.pszString;
2907	size_t cbString = strlen(psz);
2908	if (cbUnit & RT_BIT_32(31))
2909	{
2910	/* Explode char to unit. */
2911	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
2912	{
2913	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
2914	return VERR_TOO_MUCH_DATA;
2915	}
2916	while (*psz)
2917	{
2918	switch (cbUnit & 0x1f)
2919	{
2920	case 1: u.pu8++ = psz; break;
2921	case 2: u.pu16++ = psz; break;
2922	case 4: u.pu32++ = psz; break;
2923	case 8: u.pu64++ = psz; break;
2924	}
2925	psz++;
2926	}
2927	}
2928	else
2929	{
2930	/* Raw copy with zero padding if the size isn't aligned. */
2931	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
2932	{
2933	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
2934	return VERR_TOO_MUCH_DATA;
2935	}
2936
2937	size_t cbCopy = cbString & ~(cbUnit - 1);
2938	memcpy(u.pu8, psz, cbCopy);
2939	u.pu8 += cbCopy;
2940	psz += cbCopy;
2941
2942	size_t cbReminder = cbString & (cbUnit - 1);
2943	if (cbReminder)
2944	{
2945	memcpy(u.pu8, psz, cbString & (cbUnit - 1));
2946	memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
2947	u.pu8 += cbUnit;
2948	}
2949	}
2950	break;
2951	}
2952
2953	default:
2954	pcbBuf = u.pu8 - (uint8_t )pvBuf;
2955	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
2956	"i=%d enmType=%d\n", i, paVars[i].enmType);
2957	return VERR_INTERNAL_ERROR;
2958	}
2959	}
2960	pcbBuf = u.pu8 - (uint8_t )pvBuf;
2961	if (i != cVars)
2962	{
2963	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
2964	return VERR_TOO_MUCH_DATA;
2965	}
2966	return VINF_SUCCESS;
2967	}
2968
2969
2970	/**
2971	* Executes the search.
2972	*
2973	* @returns VBox status code.
2974	* @param pCmdHlp The command helpers.
2975	* @param pVM The VM handle.
2976	* @param pAddress The address to start searching from. (undefined on output)
2977	* @param cbRange The address range to search. Must not wrap.
2978	* @param pabBytes The byte pattern to search for.
2979	* @param cbBytes The size of the pattern.
2980	* @param cbUnit The search unit.
2981	* @param cMaxHits The max number of hits.
2982	* @param pResult Where to store the result if it's a function invocation.
2983	*/
2984	static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
2985	const uint8_t *pabBytes, uint32_t cbBytes,
2986	uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
2987	{
2988	/*
2989	* Do the search.
2990	*/
2991	uint64_t cHits = 0;
2992	for (;;)
2993	{
2994	/* search */
2995	DBGFADDRESS HitAddress;
2996	int rc = DBGFR3MemScan(pVM, pAddress, cbRange, pabBytes, cbBytes, &HitAddress);
2997	if (RT_FAILURE(rc))
2998	{
2999	if (rc != VERR_DBGF_MEM_NOT_FOUND)
3000	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3001
3002	/* update the current address so we can save it (later). */
3003	pAddress->off += cbRange;
3004	pAddress->FlatPtr += cbRange;
3005	cbRange = 0;
3006	break;
3007	}
3008
3009	/* report result */
3010	DBGCVAR VarCur;
3011	dbgcVarInit(&VarCur);
3012	dbgcVarSetDbgfAddr(&VarCur, &HitAddress);
3013	if (!pResult)
3014	pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3015	else
3016	dbgcVarSetDbgfAddr(pResult, &HitAddress);
3017
3018	/* advance */
3019	cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3020	*pAddress = HitAddress;
3021	pAddress->FlatPtr += cbBytes;
3022	pAddress->off += cbBytes;
3023	if (cbRange <= cbBytes)
3024	{
3025	cbRange = 0;
3026	break;
3027	}
3028	cbRange -= cbBytes;
3029
3030	if (++cHits >= cMaxHits)
3031	{
3032	/// @todo save the search.
3033	break;
3034	}
3035	}
3036
3037	/*
3038	* Save the search so we can resume it...
3039	*/
3040	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3041	if (pDbgc->abSearch != pabBytes)
3042	{
3043	memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3044	pDbgc->cbSearch = cbBytes;
3045	pDbgc->cbSearchUnit = cbUnit;
3046	}
3047	pDbgc->cMaxSearchHits = cMaxHits;
3048	pDbgc->SearchAddr = *pAddress;
3049	pDbgc->cbSearchRange = cbRange;
3050
3051	return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3052	}
3053
3054
3055	/**
3056	* Resumes the previous search.
3057	*
3058	* @returns VBox status code.
3059	* @param pCmdHlp Pointer to the command helper functions.
3060	* @param pVM Pointer to the current VM (if any).
3061	* @param pResult Where to store the result of a function invocation.
3062	*/
3063	static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGCVAR pResult)
3064	{
3065	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3066
3067	/*
3068	* Make sure there is a previous command.
3069	*/
3070	if (!pDbgc->cbSearch)
3071	{
3072	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Error: No previous search\n");
3073	return VERR_DBGC_COMMAND_FAILED;
3074	}
3075
3076	/*
3077	* Make range and address adjustments.
3078	*/
3079	DBGFADDRESS Address = pDbgc->SearchAddr;
3080	if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3081	{
3082	Address.FlatPtr -= Address.off;
3083	Address.off = 0;
3084	}
3085
3086	RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3087	if (!cbRange)
3088	cbRange = ~(RTGCUINTPTR)0;
3089	if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3090	cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3091
3092	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3093	pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3094	}
3095
3096
3097	/**
3098	* Search memory, worker for the 's' and 's?' functions.
3099	*
3100	* @returns VBox status.
3101	* @param pCmdHlp Pointer to the command helper functions.
3102	* @param pVM Pointer to the current VM (if any).
3103	* @param pAddress Where to start searching. If no range, search till end of address space.
3104	* @param cMaxHits The maximum number of hits.
3105	* @param chType The search type.
3106	* @param paPatArgs The pattern variable array.
3107	* @param cPatArgs Number of pattern variables.
3108	* @param pResult Where to store the result of a function invocation.
3109	*/
3110	static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3111	PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3112	{
3113	dbgcVarSetGCFlat(pResult, 0);
3114
3115	/*
3116	* Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3117	*/
3118	uint32_t cbUnit;
3119	switch (chType)
3120	{
3121	case 'a':
3122	case 'b': cbUnit = 1; break;
3123	case 'u': cbUnit = 2 \| RT_BIT_32(31); break;
3124	case 'w': cbUnit = 2; break;
3125	case 'd': cbUnit = 4; break;
3126	case 'q': cbUnit = 8; break;
3127	default:
3128	return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3129	}
3130	uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3131	uint32_t cbBytes = sizeof(abBytes);
3132	int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3133	if (RT_FAILURE(rc))
3134	return VERR_DBGC_COMMAND_FAILED;
3135
3136	/*
3137	* Make DBGF address and fix the range.
3138	*/
3139	DBGFADDRESS Address;
3140	rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3141	if (RT_FAILURE(rc))
3142	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3143
3144	RTGCUINTPTR cbRange;
3145	switch (pAddress->enmRangeType)
3146	{
3147	case DBGCVAR_RANGE_BYTES:
3148	cbRange = pAddress->u64Range;
3149	if (cbRange != pAddress->u64Range)
3150	cbRange = ~(RTGCUINTPTR)0;
3151	break;
3152
3153	case DBGCVAR_RANGE_ELEMENTS:
3154	cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3155	if ( cbRange != pAddress->u64Range * cbUnit
3156	\|\| cbRange < pAddress->u64Range)
3157	cbRange = ~(RTGCUINTPTR)0;
3158	break;
3159
3160	default:
3161	cbRange = ~(RTGCUINTPTR)0;
3162	break;
3163	}
3164	if (Address.FlatPtr + cbRange < Address.FlatPtr)
3165	cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3166
3167	/*
3168	* Ok, do it.
3169	*/
3170	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3171	}
3172
3173
3174	/**
3175	* The 's' command.
3176	*
3177	* @returns VBox status.
3178	* @param pCmd Pointer to the command descriptor (as registered).
3179	* @param pCmdHlp Pointer to command helper functions.
3180	* @param pVM Pointer to the current VM (if any).
3181	* @param paArgs Pointer to (readonly) array of arguments.
3182	* @param cArgs Number of arguments in the array.
3183	*/
3184	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3185	{
3186	/* check that the parser did what it's supposed to do. */
3187	//if ( cArgs <= 2
3188	// && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3189	// return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
3190
3191	/*
3192	* Repeate previous search?
3193	*/
3194	if (cArgs == 0)
3195	return dbgcCmdWorkerSearchMemResume(pCmdHlp, pVM, pResult);
3196
3197	/*
3198	* Parse arguments.
3199	*/
3200
3201	return -1;
3202	}
3203
3204
3205	/**
3206	* The 's?' command.
3207	*
3208	* @returns VBox status.
3209	* @param pCmd Pointer to the command descriptor (as registered).
3210	* @param pCmdHlp Pointer to command helper functions.
3211	* @param pVM Pointer to the current VM (if any).
3212	* @param paArgs Pointer to (readonly) array of arguments.
3213	* @param cArgs Number of arguments in the array.
3214	*/
3215	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3216	{
3217	/* check that the parser did what it's supposed to do. */
3218	if ( cArgs < 2
3219	\|\| !DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
3220	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
3221	return dbgcCmdWorkerSearchMem(pCmdHlp, pVM, &paArgs[0], pResult ? 1 : 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, pResult);
3222	}
3223
3224
3225	/**
3226	* List near symbol.
3227	*
3228	* @returns VBox status code.
3229	* @param pCmdHlp Pointer to command helper functions.
3230	* @param pVM Pointer to the current VM (if any).
3231	* @param pArg Pointer to the address or symbol to lookup.
3232	*/
3233	static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pArg, PDBGCVAR pResult)
3234	{
3235	dbgcVarSetGCFlat(pResult, 0);
3236
3237	DBGFSYMBOL Symbol;
3238	int rc;
3239	if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
3240	{
3241	/*
3242	* Lookup the symbol address.
3243	*/
3244	rc = DBGFR3SymbolByName(pVM, pArg->u.pszString, &Symbol);
3245	if (VBOX_FAILURE(rc))
3246	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3SymbolByName(, %s,)\n", pArg->u.pszString);
3247
3248	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%VGv %s\n", (RTGCUINTPTR)Symbol.Value, Symbol.szName); /** @todo remove the RTUINGCPTR cast once DBGF got correct interfaces! */
3249	dbgcVarSetGCFlatByteRange(pResult, Symbol.Value, Symbol.cb);
3250	}
3251	else
3252	{
3253	/*
3254	* Convert it to a flat GC address and lookup that address.
3255	*/
3256	DBGCVAR AddrVar;
3257	rc = pCmdHlp->pfnEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
3258	if (VBOX_FAILURE(rc))
3259	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
3260
3261	dbgcVarSetVar(pResult, &AddrVar);
3262
3263	RTGCINTPTR offDisp = 0;
3264	rc = DBGFR3SymbolByAddr(pVM, AddrVar.u.GCFlat, &offDisp, &Symbol);
3265	if (VBOX_FAILURE(rc))
3266	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3SymbolByAddr(, %VGv,,)\n", AddrVar.u.GCFlat);
3267
3268	if (!offDisp)
3269	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s", &AddrVar, Symbol.szName);
3270	else if (offDisp > 0)
3271	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
3272	else
3273	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
3274	if ((RTGCINTPTR)Symbol.cb > -offDisp)
3275	{
3276	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " LB %RGv\n", Symbol.cb + offDisp);
3277	dbgcVarSetByteRange(pResult, Symbol.cb + offDisp);
3278	}
3279	else
3280	{
3281	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
3282	dbgcVarSetNoRange(pResult);
3283	}
3284	}
3285
3286	return rc;
3287	}
3288
3289
3290	/**
3291	* The 'ln' (listnear) command.
3292	*
3293	* @returns VBox status.
3294	* @param pCmd Pointer to the command descriptor (as registered).
3295	* @param pCmdHlp Pointer to command helper functions.
3296	* @param pVM Pointer to the current VM (if any).
3297	* @param paArgs Pointer to (readonly) array of arguments.
3298	* @param cArgs Number of arguments in the array.
3299	*/
3300	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3301	{
3302	dbgcVarSetGCFlat(pResult, 0);
3303	if (!cArgs)
3304	{
3305	/*
3306	* Current cs:eip symbol.
3307	*/
3308	DBGCVAR AddrVar;
3309	int rc = pCmdHlp->pfnEval(pCmdHlp, &AddrVar, "%%(cs:eip)");
3310	if (VBOX_FAILURE(rc))
3311	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(cs:eip)\n");
3312	return dbgcDoListNear(pCmdHlp, pVM, &AddrVar, pResult);
3313	}
3314
3315	/*
3316	* Iterate arguments.
3317	*/
3318	for (unsigned iArg = 0; iArg < cArgs; iArg++)
3319	{
3320	int rc = dbgcDoListNear(pCmdHlp, pVM, &paArgs[iArg], pResult);
3321	if (VBOX_FAILURE(rc))
3322	return rc;
3323	}
3324
3325	NOREF(pCmd); NOREF(pResult);
3326	return VINF_SUCCESS;
3327	}
3328

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source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 9576

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