VirtualBox

source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 39668

Last change on this file since 39668 was 38537, checked in by vboxsync, 13 years ago

Debugger: don't crash in dbgcCmdWorkerSearchMem()
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1/* $Id: DBGCEmulateCodeView.cpp 38537 2011-08-25 18:36:39Z vboxsync $ */
2/** @file
3 * DBGC - Debugger Console, CodeView / WinDbg Emulation.
4 */
5
6/*
7 * Copyright (C) 2006-2011 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18/*******************************************************************************
19* Header Files *
20*******************************************************************************/
21#define LOG_GROUP LOG_GROUP_DBGC
22#include <VBox/dbg.h>
23#include <VBox/vmm/dbgf.h>
24#include <VBox/vmm/pgm.h>
25#include <VBox/vmm/cpum.h>
26#include <VBox/dis.h>
27#include <VBox/param.h>
28#include <VBox/err.h>
29#include <VBox/log.h>
30
31#include <iprt/asm.h>
32#include <iprt/mem.h>
33#include <iprt/string.h>
34#include <iprt/assert.h>
35#include <iprt/ctype.h>
36
37#include <stdlib.h>
38#include <stdio.h>
39
40#include "DBGCInternal.h"
41
42
43/*******************************************************************************
44* Internal Functions *
45*******************************************************************************/
46static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
47static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
48static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
49static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
50static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
51static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
52static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
53static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
54static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
55static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
56static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
57static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
58static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
59static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
60static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
61static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
62static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
63static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
64static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
65static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
66static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
67static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
68static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
69static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
70static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
71static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
72static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
73static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
74static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
75static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
76static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs);
77
78
79/*******************************************************************************
80* Global Variables *
81*******************************************************************************/
82/** 'ba' arguments. */
83static const DBGCVARDESC g_aArgBrkAcc[] =
84{
85 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
86 { 1, 1, DBGCVAR_CAT_STRING, 0, "access", "The access type: x=execute, rw=read/write (alias r), w=write, i=not implemented." },
87 { 1, 1, DBGCVAR_CAT_NUMBER, 0, "size", "The access size: 1, 2, 4, or 8. 'x' access requires 1, and 8 requires amd64 long mode." },
88 { 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
89 { 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
90 { 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
91 { 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
92};
93
94
95/** 'bc', 'bd', 'be' arguments. */
96static const DBGCVARDESC g_aArgBrks[] =
97{
98 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
99 { 0, ~0, DBGCVAR_CAT_NUMBER, 0, "#bp", "Breakpoint number." },
100 { 0, 1, DBGCVAR_CAT_STRING, 0, "all", "All breakpoints." },
101};
102
103
104/** 'bp' arguments. */
105static const DBGCVARDESC g_aArgBrkSet[] =
106{
107 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
108 { 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
109 { 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
110 { 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
111 { 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
112};
113
114
115/** 'br' arguments. */
116static const DBGCVARDESC g_aArgBrkREM[] =
117{
118 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
119 { 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
120 { 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
121 { 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
122 { 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
123};
124
125
126/** 'd?' arguments. */
127static const DBGCVARDESC g_aArgDumpMem[] =
128{
129 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
130 { 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start dumping memory." },
131};
132
133
134/** 'dg', 'dga', 'dl', 'dla' arguments. */
135static const DBGCVARDESC g_aArgDumpDT[] =
136{
137 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
138 { 0, ~0, DBGCVAR_CAT_NUMBER, 0, "sel", "Selector or selector range." },
139 { 0, ~0, DBGCVAR_CAT_POINTER, 0, "address", "Far address which selector should be dumped." },
140};
141
142
143/** 'di', 'dia' arguments. */
144static const DBGCVARDESC g_aArgDumpIDT[] =
145{
146 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
147 { 0, ~0, DBGCVAR_CAT_NUMBER, 0, "int", "The interrupt vector or interrupt vector range." },
148};
149
150
151/** 'dpd*' arguments. */
152static const DBGCVARDESC g_aArgDumpPD[] =
153{
154 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
155 { 0, 1, DBGCVAR_CAT_NUMBER, 0, "index", "Index into the page directory." },
156 { 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from. Range is applied to the page directory." },
157};
158
159
160/** 'dpda' arguments. */
161static const DBGCVARDESC g_aArgDumpPDAddr[] =
162{
163 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
164 { 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page directory entry to start dumping from." },
165};
166
167
168/** 'dph*' arguments. */
169static const DBGCVARDESC g_aArgDumpPH[] =
170{
171 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
172 { 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "Where in the address space to start dumping and for how long (range). The default address/range will be used if omitted." },
173 { 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "cr3", "The CR3 value to use. The current CR3 of the context will be used if omitted." },
174 { 0, 1, DBGCVAR_CAT_STRING, DBGCVD_FLAGS_DEP_PREV, "mode", "The paging mode: legacy, pse, pae, long, ept. Append '-np' for nested paging and '-nx' for no-execute. The current mode will be used if omitted." },
175};
176
177
178/** 'dpt?' arguments. */
179static const DBGCVARDESC g_aArgDumpPT[] =
180{
181 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
182 { 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from." },
183};
184
185
186/** 'dpta' arguments. */
187static const DBGCVARDESC g_aArgDumpPTAddr[] =
188{
189 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
190 { 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page table entry to start dumping from." },
191};
192
193
194/** 'dt' arguments. */
195static const DBGCVARDESC g_aArgDumpTSS[] =
196{
197 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
198 { 0, 1, DBGCVAR_CAT_NUMBER, 0, "tss", "TSS selector number." },
199 { 0, 1, DBGCVAR_CAT_POINTER, 0, "tss:ign|addr", "TSS address. If the selector is a TSS selector, the offset will be ignored." }
200};
201
202
203/** 'e?' arguments. */
204static const DBGCVARDESC g_aArgEditMem[] =
205{
206 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
207 { 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to write." },
208 { 1, ~0, DBGCVAR_CAT_NUMBER, 0, "value", "Value to write." },
209};
210
211
212/** 'lm' arguments. */
213static const DBGCVARDESC g_aArgListMods[] =
214{
215 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
216 { 0, ~0, DBGCVAR_CAT_STRING, 0, "module", "Module name." },
217};
218
219
220/** 'ln' arguments. */
221static const DBGCVARDESC g_aArgListNear[] =
222{
223 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
224 { 0, ~0, DBGCVAR_CAT_POINTER, 0, "address", "Address of the symbol to look up." },
225 { 0, ~0, DBGCVAR_CAT_SYMBOL, 0, "symbol", "Symbol to lookup." },
226};
227
228
229/** 'ls' arguments. */
230static const DBGCVARDESC g_aArgListSource[] =
231{
232 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
233 { 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start looking for source lines." },
234};
235
236
237/** 'm' argument. */
238static const DBGCVARDESC g_aArgMemoryInfo[] =
239{
240 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
241 { 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Pointer to obtain info about." },
242};
243
244
245/** 'r' arguments. */
246static const DBGCVARDESC g_aArgReg[] =
247{
248 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
249 { 0, 1, DBGCVAR_CAT_SYMBOL, 0, "register", "Register to show or set." },
250 { 0, 1, DBGCVAR_CAT_NUMBER_NO_RANGE, DBGCVD_FLAGS_DEP_PREV, "value", "New register value." },
251};
252
253
254/** 's' arguments. */
255static const DBGCVARDESC g_aArgSearchMem[] =
256{
257 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
258 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-b", "Byte string." },
259 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-w", "Word string." },
260 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-d", "DWord string." },
261 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-q", "QWord string." },
262 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-a", "ASCII string." },
263 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-u", "Unicode string." },
264 { 0, 1, DBGCVAR_CAT_OPTION_NUMBER, 0, "-n <Hits>", "Maximum number of hits." },
265 { 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
266 { 0, ~0, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
267};
268
269
270/** 's?' arguments. */
271static const DBGCVARDESC g_aArgSearchMemType[] =
272{
273 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
274 { 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
275 { 1, ~0, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
276};
277
278
279/** 'u' arguments. */
280static const DBGCVARDESC g_aArgUnassemble[] =
281{
282 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
283 { 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start disassembling." },
284};
285
286
287/** Command descriptors for the CodeView / WinDbg emulation.
288 * The emulation isn't attempting to be identical, only somewhat similar.
289 */
290const DBGCCMD g_aCmdsCodeView[] =
291{
292 /* pszCmd, cArgsMin, cArgsMax, paArgDescs, cArgDescs, fFlags, pfnHandler pszSyntax, ....pszDescription */
293 { "ba", 3, 6, &g_aArgBrkAcc[0], RT_ELEMENTS(g_aArgBrkAcc), 0, dbgcCmdBrkAccess, "<access> <size> <address> [passes [max passes]] [cmds]",
294 "Sets a data access breakpoint." },
295 { "bc", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkClear, "all | <bp#> [bp# []]", "Enabled a set of breakpoints." },
296 { "bd", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkDisable, "all | <bp#> [bp# []]", "Disables a set of breakpoints." },
297 { "be", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkEnable, "all | <bp#> [bp# []]", "Enabled a set of breakpoints." },
298 { "bl", 0, 0, NULL, 0, 0, dbgcCmdBrkList, "", "Lists all the breakpoints." },
299 { "bp", 1, 4, &g_aArgBrkSet[0], RT_ELEMENTS(g_aArgBrkSet), 0, dbgcCmdBrkSet, "<address> [passes [max passes]] [cmds]",
300 "Sets a breakpoint (int 3)." },
301 { "br", 1, 4, &g_aArgBrkREM[0], RT_ELEMENTS(g_aArgBrkREM), 0, dbgcCmdBrkREM, "<address> [passes [max passes]] [cmds]",
302 "Sets a recompiler specific breakpoint." },
303 { "d", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory using last element size." },
304 { "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
305 { "db", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in bytes." },
306 { "dd", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in double words." },
307 { "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
308 { "dg", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT)." },
309 { "dga", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT) including not-present entries." },
310 { "di", 0, ~0, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT)." },
311 { "dia", 0, ~0, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT) including not-present entries." },
312 { "dl", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT)." },
313 { "dla", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT) including not-present entries." },
314 { "dpd", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the default context." },
315 { "dpda", 0, 1, &g_aArgDumpPDAddr[0],RT_ELEMENTS(g_aArgDumpPDAddr), 0, dbgcCmdDumpPageDir, "[addr]", "Dumps specified page directory." },
316 { "dpdb", 1, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDirBoth, "[addr] [index]", "Dumps page directory entries of the guest and the hypervisor. " },
317 { "dpdg", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the guest." },
318 { "dpdh", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the hypervisor. " },
319 { "dph", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Default context." },
320 { "dphg", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Guest context." },
321 { "dphh", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Hypervisor context." },
322 { "dpt", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the default context." },
323 { "dpta", 1, 1, &g_aArgDumpPTAddr[0],RT_ELEMENTS(g_aArgDumpPTAddr), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps specified page table." },
324 { "dptb", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTableBoth,"<addr>", "Dumps page table entries of the guest and the hypervisor." },
325 { "dptg", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the guest." },
326 { "dpth", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the hypervisor." },
327 { "dq", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in quad words." },
328 { "dt", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss|tss:ign|addr]", "Dump the task state segment (TSS)." },
329 { "dt16", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss|tss:ign|addr]", "Dump the 16-bit task state segment (TSS)." },
330 { "dt32", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss|tss:ign|addr]", "Dump the 32-bit task state segment (TSS)." },
331 { "dt64", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss|tss:ign|addr]", "Dump the 64-bit task state segment (TSS)." },
332 { "dw", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in words." },
333 /** @todo add 'e', 'ea str', 'eza str', 'eu str' and 'ezu str'. See also
334 * dbgcCmdSearchMem and its dbgcVarsToBytes usage. */
335 { "eb", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 1-byte value to memory." },
336 { "ew", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 2-byte value to memory." },
337 { "ed", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 4-byte value to memory." },
338 { "eq", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 8-byte value to memory." },
339 { "g", 0, 0, NULL, 0, 0, dbgcCmdGo, "", "Continue execution." },
340 { "k", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack." },
341 { "kg", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack - guest." },
342 { "kh", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack - hypervisor." },
343 { "lm", 0, ~0, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules." },
344 { "lmo", 0, ~0, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments." },
345 { "ln", 0, ~0, &g_aArgListNear[0], RT_ELEMENTS(g_aArgListNear), 0, dbgcCmdListNear, "[addr/sym [..]]", "List symbols near to the address. Default address is CS:EIP." },
346 { "ls", 0, 1, &g_aArgListSource[0],RT_ELEMENTS(g_aArgListSource), 0, dbgcCmdListSource, "[addr]", "Source." },
347 { "m", 1, 1, &g_aArgMemoryInfo[0],RT_ELEMENTS(g_aArgMemoryInfo), 0, dbgcCmdMemoryInfo, "<addr>", "Display information about that piece of memory." },
348 { "r", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdReg, "[reg [newval]]", "Show or set register(s) - active reg set." },
349 { "rg", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegGuest, "[reg [newval]]", "Show or set register(s) - guest reg set." },
350 { "rg32", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 32-bit guest registers." },
351 { "rg64", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 64-bit guest registers." },
352 { "rh", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegHyper, "[reg [newval]]", "Show or set register(s) - hypervisor reg set." },
353 { "rt", 0, 0, NULL, 0, 0, dbgcCmdRegTerse, "", "Toggles terse / verbose register info." },
354 { "s", 0, ~0, &g_aArgSearchMem[0], RT_ELEMENTS(g_aArgSearchMem), 0, dbgcCmdSearchMem, "[options] <range> <pattern>", "Continue last search." },
355 { "sa", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an ascii string." },
356 { "sb", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more bytes." },
357 { "sd", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more double words." },
358 { "sq", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more quad words." },
359 { "su", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an unicode string." },
360 { "sw", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more words." },
361 { "t", 0, 0, NULL, 0, 0, dbgcCmdTrace, "", "Instruction trace (step into)." },
362 { "u", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble." },
363 { "u64", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 64-bit code." },
364 { "u32", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 32-bit code." },
365 { "u16", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code." },
366 { "uv86", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code with v8086/real mode addressing." },
367};
368
369/** The number of commands in the CodeView/WinDbg emulation. */
370const unsigned g_cCmdsCodeView = RT_ELEMENTS(g_aCmdsCodeView);
371
372
373
374/**
375 * The 'go' command.
376 *
377 * @returns VBox status.
378 * @param pCmd Pointer to the command descriptor (as registered).
379 * @param pCmdHlp Pointer to command helper functions.
380 * @param pVM Pointer to the current VM (if any).
381 * @param paArgs Pointer to (readonly) array of arguments.
382 * @param cArgs Number of arguments in the array.
383 */
384static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
385{
386 DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
387
388 /*
389 * Check if the VM is halted or not before trying to resume it.
390 */
391 if (!DBGFR3IsHalted(pVM))
392 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The VM is already running");
393
394 int rc = DBGFR3Resume(pVM);
395 if (RT_FAILURE(rc))
396 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3Resume");
397
398 NOREF(paArgs); NOREF(cArgs);
399 return VINF_SUCCESS;
400}
401
402
403/**
404 * The 'ba' command.
405 *
406 * @returns VBox status.
407 * @param pCmd Pointer to the command descriptor (as registered).
408 * @param pCmdHlp Pointer to command helper functions.
409 * @param pVM Pointer to the current VM (if any).
410 * @param paArgs Pointer to (readonly) array of arguments.
411 * @param cArgs Number of arguments in the array.
412 */
413static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
414{
415 DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
416
417 /*
418 * Interpret access type.
419 */
420 if ( !strchr("xrwi", paArgs[0].u.pszString[0])
421 || paArgs[0].u.pszString[1])
422 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access type '%s' for '%s'. Valid types are 'e', 'r', 'w' and 'i'",
423 paArgs[0].u.pszString, pCmd->pszCmd);
424 uint8_t fType = 0;
425 switch (paArgs[0].u.pszString[0])
426 {
427 case 'x': fType = X86_DR7_RW_EO; break;
428 case 'r': fType = X86_DR7_RW_RW; break;
429 case 'w': fType = X86_DR7_RW_WO; break;
430 case 'i': fType = X86_DR7_RW_IO; break;
431 }
432
433 /*
434 * Validate size.
435 */
436 if (fType == X86_DR7_RW_EO && paArgs[1].u.u64Number != 1)
437 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 'x' access type requires size 1!",
438 paArgs[1].u.u64Number, pCmd->pszCmd);
439 switch (paArgs[1].u.u64Number)
440 {
441 case 1:
442 case 2:
443 case 4:
444 break;
445 /*case 8: - later*/
446 default:
447 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 1, 2 or 4!",
448 paArgs[1].u.u64Number, pCmd->pszCmd);
449 }
450 uint8_t cb = (uint8_t)paArgs[1].u.u64Number;
451
452 /*
453 * Convert the pointer to a DBGF address.
454 */
455 DBGFADDRESS Address;
456 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[2], &Address);
457 if (RT_FAILURE(rc))
458 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%DV,)", &paArgs[2]);
459
460 /*
461 * Pick out the optional arguments.
462 */
463 uint64_t iHitTrigger = 0;
464 uint64_t iHitDisable = ~0;
465 const char *pszCmds = NULL;
466 unsigned iArg = 3;
467 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
468 {
469 iHitTrigger = paArgs[iArg].u.u64Number;
470 iArg++;
471 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
472 {
473 iHitDisable = paArgs[iArg].u.u64Number;
474 iArg++;
475 }
476 }
477 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
478 {
479 pszCmds = paArgs[iArg].u.pszString;
480 iArg++;
481 }
482
483 /*
484 * Try set the breakpoint.
485 */
486 uint32_t iBp;
487 rc = DBGFR3BpSetReg(pVM, &Address, iHitTrigger, iHitDisable, fType, cb, &iBp);
488 if (RT_SUCCESS(rc))
489 {
490 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
491 rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
492 if (RT_SUCCESS(rc))
493 return DBGCCmdHlpPrintf(pCmdHlp, "Set access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
494 if (rc == VERR_DBGC_BP_EXISTS)
495 {
496 rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
497 if (RT_SUCCESS(rc))
498 return DBGCCmdHlpPrintf(pCmdHlp, "Updated access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
499 }
500 int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
501 AssertRC(rc2);
502 }
503 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set access breakpoint at %RGv", Address.FlatPtr);
504}
505
506
507/**
508 * The 'bc' command.
509 *
510 * @returns VBox status.
511 * @param pCmd Pointer to the command descriptor (as registered).
512 * @param pCmdHlp Pointer to command helper functions.
513 * @param pVM Pointer to the current VM (if any).
514 * @param paArgs Pointer to (readonly) array of arguments.
515 * @param cArgs Number of arguments in the array.
516 */
517static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
518{
519 DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
520
521 /*
522 * Enumerate the arguments.
523 */
524 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
525 int rc = VINF_SUCCESS;
526 for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
527 {
528 if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
529 {
530 /* one */
531 uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
532 if (iBp == paArgs[iArg].u.u64Number)
533 {
534 int rc2 = DBGFR3BpClear(pVM, iBp);
535 if (RT_FAILURE(rc2))
536 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
537 if (RT_SUCCESS(rc2) || rc2 == VERR_DBGF_BP_NOT_FOUND)
538 dbgcBpDelete(pDbgc, iBp);
539 }
540 else
541 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
542 }
543 else if (!strcmp(paArgs[iArg].u.pszString, "all"))
544 {
545 /* all */
546 PDBGCBP pBp = pDbgc->pFirstBp;
547 while (pBp)
548 {
549 uint32_t iBp = pBp->iBp;
550 pBp = pBp->pNext;
551
552 int rc2 = DBGFR3BpClear(pVM, iBp);
553 if (RT_FAILURE(rc2))
554 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
555 if (RT_SUCCESS(rc2) || rc2 == VERR_DBGF_BP_NOT_FOUND)
556 dbgcBpDelete(pDbgc, iBp);
557 }
558 }
559 else
560 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
561 }
562 return rc;
563}
564
565
566/**
567 * The 'bd' command.
568 *
569 * @returns VBox status.
570 * @param pCmd Pointer to the command descriptor (as registered).
571 * @param pCmdHlp Pointer to command helper functions.
572 * @param pVM Pointer to the current VM (if any).
573 * @param paArgs Pointer to (readonly) array of arguments.
574 * @param cArgs Number of arguments in the array.
575 */
576static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
577{
578 /*
579 * Enumerate the arguments.
580 */
581 int rc = VINF_SUCCESS;
582 for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
583 {
584 if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
585 {
586 /* one */
587 uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
588 if (iBp == paArgs[iArg].u.u64Number)
589 {
590 rc = DBGFR3BpDisable(pVM, iBp);
591 if (RT_FAILURE(rc))
592 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpDisable failed for breakpoint %#x", iBp);
593 }
594 else
595 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
596 }
597 else if (!strcmp(paArgs[iArg].u.pszString, "all"))
598 {
599 /* all */
600 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
601 for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
602 {
603 int rc2 = DBGFR3BpDisable(pVM, pBp->iBp);
604 if (RT_FAILURE(rc2))
605 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpDisable failed for breakpoint %#x", pBp->iBp);
606 }
607 }
608 else
609 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
610 }
611 return rc;
612}
613
614
615/**
616 * The 'be' command.
617 *
618 * @returns VBox status.
619 * @param pCmd Pointer to the command descriptor (as registered).
620 * @param pCmdHlp Pointer to command helper functions.
621 * @param pVM Pointer to the current VM (if any).
622 * @param paArgs Pointer to (readonly) array of arguments.
623 * @param cArgs Number of arguments in the array.
624 */
625static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
626{
627 DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
628
629 /*
630 * Enumerate the arguments.
631 */
632 int rc = VINF_SUCCESS;
633 for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
634 {
635 if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
636 {
637 /* one */
638 uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
639 if (iBp == paArgs[iArg].u.u64Number)
640 {
641 rc = DBGFR3BpEnable(pVM, iBp);
642 if (RT_FAILURE(rc))
643 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnable failed for breakpoint %#x", iBp);
644 }
645 else
646 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
647 }
648 else if (!strcmp(paArgs[iArg].u.pszString, "all"))
649 {
650 /* all */
651 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
652 for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
653 {
654 int rc2 = DBGFR3BpEnable(pVM, pBp->iBp);
655 if (RT_FAILURE(rc2))
656 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpEnable failed for breakpoint %#x", pBp->iBp);
657 }
658 }
659 else
660 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
661 }
662 return rc;
663}
664
665
666/**
667 * Breakpoint enumeration callback function.
668 *
669 * @returns VBox status code. Any failure will stop the enumeration.
670 * @param pVM The VM handle.
671 * @param pvUser The user argument.
672 * @param pBp Pointer to the breakpoint information. (readonly)
673 */
674static DECLCALLBACK(int) dbgcEnumBreakpointsCallback(PVM pVM, void *pvUser, PCDBGFBP pBp)
675{
676 PDBGC pDbgc = (PDBGC)pvUser;
677 PDBGCBP pDbgcBp = dbgcBpGet(pDbgc, pBp->iBp);
678
679 /*
680 * BP type and size.
681 */
682 char chType;
683 char cb = 1;
684 switch (pBp->enmType)
685 {
686 case DBGFBPTYPE_INT3:
687 chType = 'p';
688 break;
689 case DBGFBPTYPE_REG:
690 switch (pBp->u.Reg.fType)
691 {
692 case X86_DR7_RW_EO: chType = 'x'; break;
693 case X86_DR7_RW_WO: chType = 'w'; break;
694 case X86_DR7_RW_IO: chType = 'i'; break;
695 case X86_DR7_RW_RW: chType = 'r'; break;
696 default: chType = '?'; break;
697
698 }
699 cb = pBp->u.Reg.cb;
700 break;
701 case DBGFBPTYPE_REM:
702 chType = 'r';
703 break;
704 default:
705 chType = '?';
706 break;
707 }
708
709 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%4#x %c %d %c %RGv %04RX64 (%04RX64 to ",
710 pBp->iBp, pBp->fEnabled ? 'e' : 'd', cb, chType,
711 pBp->GCPtr, pBp->cHits, pBp->iHitTrigger);
712 if (pBp->iHitDisable == ~(uint64_t)0)
713 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "~0) ");
714 else
715 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%04RX64)");
716
717 /*
718 * Try resolve the address.
719 */
720 RTDBGSYMBOL Sym;
721 RTINTPTR off;
722 DBGFADDRESS Addr;
723 int rc = DBGFR3AsSymbolByAddr(pVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pVM, &Addr, pBp->GCPtr), &off, &Sym, NULL);
724 if (RT_SUCCESS(rc))
725 {
726 if (!off)
727 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s", Sym.szName);
728 else if (off > 0)
729 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s+%RGv", Sym.szName, off);
730 else
731 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s+%RGv", Sym.szName, -off);
732 }
733
734 /*
735 * The commands.
736 */
737 if (pDbgcBp)
738 {
739 if (pDbgcBp->cchCmd)
740 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n cmds: '%s'\n", pDbgcBp->szCmd);
741 else
742 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n");
743 }
744 else
745 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " [unknown bp]\n");
746
747 return VINF_SUCCESS;
748}
749
750
751/**
752 * The 'bl' command.
753 *
754 * @returns VBox status.
755 * @param pCmd Pointer to the command descriptor (as registered).
756 * @param pCmdHlp Pointer to command helper functions.
757 * @param pVM Pointer to the current VM (if any).
758 * @param paArgs Pointer to (readonly) array of arguments.
759 * @param cArgs Number of arguments in the array.
760 */
761static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR /*paArgs*/, unsigned cArgs)
762{
763 DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
764 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs == 0);
765
766 /*
767 * Enumerate the breakpoints.
768 */
769 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
770 int rc = DBGFR3BpEnum(pVM, dbgcEnumBreakpointsCallback, pDbgc);
771 if (RT_FAILURE(rc))
772 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnum");
773 return rc;
774}
775
776
777/**
778 * The 'bp' command.
779 *
780 * @returns VBox status.
781 * @param pCmd Pointer to the command descriptor (as registered).
782 * @param pCmdHlp Pointer to command helper functions.
783 * @param pVM Pointer to the current VM (if any).
784 * @param paArgs Pointer to (readonly) array of arguments.
785 * @param cArgs Number of arguments in the array.
786 */
787static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
788{
789 /*
790 * Convert the pointer to a DBGF address.
791 */
792 DBGFADDRESS Address;
793 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
794 if (RT_FAILURE(rc))
795 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
796
797 /*
798 * Pick out the optional arguments.
799 */
800 uint64_t iHitTrigger = 0;
801 uint64_t iHitDisable = ~0;
802 const char *pszCmds = NULL;
803 unsigned iArg = 1;
804 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
805 {
806 iHitTrigger = paArgs[iArg].u.u64Number;
807 iArg++;
808 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
809 {
810 iHitDisable = paArgs[iArg].u.u64Number;
811 iArg++;
812 }
813 }
814 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
815 {
816 pszCmds = paArgs[iArg].u.pszString;
817 iArg++;
818 }
819
820 /*
821 * Try set the breakpoint.
822 */
823 uint32_t iBp;
824 rc = DBGFR3BpSet(pVM, &Address, iHitTrigger, iHitDisable, &iBp);
825 if (RT_SUCCESS(rc))
826 {
827 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
828 rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
829 if (RT_SUCCESS(rc))
830 return DBGCCmdHlpPrintf(pCmdHlp, "Set breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
831 if (rc == VERR_DBGC_BP_EXISTS)
832 {
833 rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
834 if (RT_SUCCESS(rc))
835 return DBGCCmdHlpPrintf(pCmdHlp, "Updated breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
836 }
837 int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
838 AssertRC(rc2);
839 }
840 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set breakpoint at %RGv", Address.FlatPtr);
841}
842
843
844/**
845 * The 'br' command.
846 *
847 * @returns VBox status.
848 * @param pCmd Pointer to the command descriptor (as registered).
849 * @param pCmdHlp Pointer to command helper functions.
850 * @param pVM Pointer to the current VM (if any).
851 * @param paArgs Pointer to (readonly) array of arguments.
852 * @param cArgs Number of arguments in the array.
853 */
854static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
855{
856 /*
857 * Convert the pointer to a DBGF address.
858 */
859 DBGFADDRESS Address;
860 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
861 if (RT_FAILURE(rc))
862 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
863
864 /*
865 * Pick out the optional arguments.
866 */
867 uint64_t iHitTrigger = 0;
868 uint64_t iHitDisable = ~0;
869 const char *pszCmds = NULL;
870 unsigned iArg = 1;
871 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
872 {
873 iHitTrigger = paArgs[iArg].u.u64Number;
874 iArg++;
875 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
876 {
877 iHitDisable = paArgs[iArg].u.u64Number;
878 iArg++;
879 }
880 }
881 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
882 {
883 pszCmds = paArgs[iArg].u.pszString;
884 iArg++;
885 }
886
887 /*
888 * Try set the breakpoint.
889 */
890 uint32_t iBp;
891 rc = DBGFR3BpSetREM(pVM, &Address, iHitTrigger, iHitDisable, &iBp);
892 if (RT_SUCCESS(rc))
893 {
894 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
895 rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
896 if (RT_SUCCESS(rc))
897 return DBGCCmdHlpPrintf(pCmdHlp, "Set REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
898 if (rc == VERR_DBGC_BP_EXISTS)
899 {
900 rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
901 if (RT_SUCCESS(rc))
902 return DBGCCmdHlpPrintf(pCmdHlp, "Updated REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
903 }
904 int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
905 AssertRC(rc2);
906 }
907 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set REM breakpoint at %RGv", Address.FlatPtr);
908}
909
910
911/**
912 * The 'u' command.
913 *
914 * @returns VBox status.
915 * @param pCmd Pointer to the command descriptor (as registered).
916 * @param pCmdHlp Pointer to command helper functions.
917 * @param pVM Pointer to the current VM (if any).
918 * @param paArgs Pointer to (readonly) array of arguments.
919 * @param cArgs Number of arguments in the array.
920 */
921static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
922{
923 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
924
925 /*
926 * Validate input.
927 */
928 DBGC_CMDHLP_REQ_VM_RET(pCmdHlp, pCmd, pVM);
929 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs <= 1);
930 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 0 || DBGCVAR_ISPOINTER(paArgs[0].enmType));
931
932 if (!cArgs && !DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
933 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start disassembling");
934
935 /*
936 * Check the desired mode.
937 */
938 unsigned fFlags = DBGF_DISAS_FLAGS_NO_ADDRESS;
939 switch (pCmd->pszCmd[1])
940 {
941 default: AssertFailed();
942 case '\0': fFlags |= DBGF_DISAS_FLAGS_DEFAULT_MODE; break;
943 case '6': fFlags |= DBGF_DISAS_FLAGS_64BIT_MODE; break;
944 case '3': fFlags |= DBGF_DISAS_FLAGS_32BIT_MODE; break;
945 case '1': fFlags |= DBGF_DISAS_FLAGS_16BIT_MODE; break;
946 case 'v': fFlags |= DBGF_DISAS_FLAGS_16BIT_REAL_MODE; break;
947 }
948
949 /*
950 * Find address.
951 */
952 if (!cArgs)
953 {
954 if (!DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
955 {
956 /** @todo Batch query CS, RIP & CPU mode. */
957 PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
958 if ( pDbgc->fRegCtxGuest
959 && CPUMIsGuestIn64BitCodeEx(CPUMQueryGuestCtxPtr(pVCpu)))
960 {
961 pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FLAT;
962 pDbgc->SourcePos.u.GCFlat = CPUMGetGuestRIP(pVCpu);
963 }
964 else
965 {
966 pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FAR;
967 pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
968 pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
969 }
970
971 if (pDbgc->fRegCtxGuest)
972 fFlags |= DBGF_DISAS_FLAGS_CURRENT_GUEST;
973 else
974 fFlags |= DBGF_DISAS_FLAGS_CURRENT_HYPER;
975 }
976 pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
977 }
978 else
979 pDbgc->DisasmPos = paArgs[0];
980 pDbgc->pLastPos = &pDbgc->DisasmPos;
981
982 /*
983 * Range.
984 */
985 switch (pDbgc->DisasmPos.enmRangeType)
986 {
987 case DBGCVAR_RANGE_NONE:
988 pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
989 pDbgc->DisasmPos.u64Range = 10;
990 break;
991
992 case DBGCVAR_RANGE_ELEMENTS:
993 if (pDbgc->DisasmPos.u64Range > 2048)
994 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Too many lines requested. Max is 2048 lines");
995 break;
996
997 case DBGCVAR_RANGE_BYTES:
998 if (pDbgc->DisasmPos.u64Range > 65536)
999 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The requested range is too big. Max is 64KB");
1000 break;
1001
1002 default:
1003 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown range type %d", pDbgc->DisasmPos.enmRangeType);
1004 }
1005
1006 /*
1007 * Convert physical and host addresses to guest addresses.
1008 */
1009 int rc;
1010 switch (pDbgc->DisasmPos.enmType)
1011 {
1012 case DBGCVAR_TYPE_GC_FLAT:
1013 case DBGCVAR_TYPE_GC_FAR:
1014 break;
1015 case DBGCVAR_TYPE_GC_PHYS:
1016 case DBGCVAR_TYPE_HC_FLAT:
1017 case DBGCVAR_TYPE_HC_PHYS:
1018 {
1019 DBGCVAR VarTmp;
1020 rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1021 if (RT_FAILURE(rc))
1022 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "failed to evaluate '%%(%Dv)'", &pDbgc->DisasmPos);
1023 pDbgc->DisasmPos = VarTmp;
1024 break;
1025 }
1026 default: AssertFailed(); break;
1027 }
1028
1029 /*
1030 * Print address.
1031 * todo: Change to list near.
1032 */
1033#if 0
1034 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DisasmPos);
1035 if (RT_FAILURE(rc))
1036 return rc;
1037#endif
1038
1039 /*
1040 * Do the disassembling.
1041 */
1042 unsigned cTries = 32;
1043 int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1044 if (iRangeLeft == 0) /* kludge for 'r'. */
1045 iRangeLeft = -1;
1046 for (;;)
1047 {
1048 /*
1049 * Disassemble the instruction.
1050 */
1051 char szDis[256];
1052 uint32_t cbInstr = 1;
1053 if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1054 rc = DBGFR3DisasInstrEx(pVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1055 &szDis[0], sizeof(szDis), &cbInstr);
1056 else
1057 rc = DBGFR3DisasInstrEx(pVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1058 &szDis[0], sizeof(szDis), &cbInstr);
1059 if (RT_SUCCESS(rc))
1060 {
1061 /* print it */
1062 rc = DBGCCmdHlpPrintf(pCmdHlp, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1063 if (RT_FAILURE(rc))
1064 return rc;
1065 }
1066 else
1067 {
1068 /* bitch. */
1069 rc = DBGCCmdHlpPrintf(pCmdHlp, "Failed to disassemble instruction, skipping one byte.\n");
1070 if (RT_FAILURE(rc))
1071 return rc;
1072 if (cTries-- > 0)
1073 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Too many disassembly failures. Giving up");
1074 cbInstr = 1;
1075 }
1076
1077 /* advance */
1078 if (iRangeLeft < 0) /* 'r' */
1079 break;
1080 if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1081 iRangeLeft--;
1082 else
1083 iRangeLeft -= cbInstr;
1084 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1085 if (RT_FAILURE(rc))
1086 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpEval(,,'(%Dv) + %x')", &pDbgc->DisasmPos, cbInstr);
1087 if (iRangeLeft <= 0)
1088 break;
1089 fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST | DBGF_DISAS_FLAGS_CURRENT_HYPER);
1090 }
1091
1092 NOREF(pCmd);
1093 return VINF_SUCCESS;
1094}
1095
1096
1097/**
1098 * The 'ls' command.
1099 *
1100 * @returns VBox status.
1101 * @param pCmd Pointer to the command descriptor (as registered).
1102 * @param pCmdHlp Pointer to command helper functions.
1103 * @param pVM Pointer to the current VM (if any).
1104 * @param paArgs Pointer to (readonly) array of arguments.
1105 * @param cArgs Number of arguments in the array.
1106 */
1107static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
1108{
1109 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1110
1111 /*
1112 * Validate input.
1113 */
1114 if ( cArgs > 1
1115 || (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
1116 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
1117 if (!pVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1118 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Don't know where to start disassembling...\n");
1119 if (!pVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1120 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: GC address but no VM.\n");
1121
1122 /*
1123 * Find address.
1124 */
1125 if (!cArgs)
1126 {
1127 if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1128 {
1129 PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
1130 pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1131 pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1132 pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1133 }
1134 pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1135 }
1136 else
1137 pDbgc->SourcePos = paArgs[0];
1138 pDbgc->pLastPos = &pDbgc->SourcePos;
1139
1140 /*
1141 * Ensure the source address is flat GC.
1142 */
1143 switch (pDbgc->SourcePos.enmType)
1144 {
1145 case DBGCVAR_TYPE_GC_FLAT:
1146 break;
1147 case DBGCVAR_TYPE_GC_PHYS:
1148 case DBGCVAR_TYPE_GC_FAR:
1149 case DBGCVAR_TYPE_HC_FLAT:
1150 case DBGCVAR_TYPE_HC_PHYS:
1151 {
1152 int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1153 if (RT_FAILURE(rc))
1154 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid address or address type. (rc=%d)\n", rc);
1155 break;
1156 }
1157 default: AssertFailed(); break;
1158 }
1159
1160 /*
1161 * Range.
1162 */
1163 switch (pDbgc->SourcePos.enmRangeType)
1164 {
1165 case DBGCVAR_RANGE_NONE:
1166 pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1167 pDbgc->SourcePos.u64Range = 10;
1168 break;
1169
1170 case DBGCVAR_RANGE_ELEMENTS:
1171 if (pDbgc->SourcePos.u64Range > 2048)
1172 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
1173 break;
1174
1175 case DBGCVAR_RANGE_BYTES:
1176 if (pDbgc->SourcePos.u64Range > 65536)
1177 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
1178 break;
1179
1180 default:
1181 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1182 }
1183
1184 /*
1185 * Do the disassembling.
1186 */
1187 bool fFirst = 1;
1188 DBGFLINE LinePrev = { 0, 0, "" };
1189 int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1190 if (iRangeLeft == 0) /* kludge for 'r'. */
1191 iRangeLeft = -1;
1192 for (;;)
1193 {
1194 /*
1195 * Get line info.
1196 */
1197 DBGFLINE Line;
1198 RTGCINTPTR off;
1199 int rc = DBGFR3LineByAddr(pVM, pDbgc->SourcePos.u.GCFlat, &off, &Line);
1200 if (RT_FAILURE(rc))
1201 return VINF_SUCCESS;
1202
1203 unsigned cLines = 0;
1204 if (memcmp(&Line, &LinePrev, sizeof(Line)))
1205 {
1206 /*
1207 * Print filenamename
1208 */
1209 if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1210 fFirst = true;
1211 if (fFirst)
1212 {
1213 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1214 if (RT_FAILURE(rc))
1215 return rc;
1216 }
1217
1218 /*
1219 * Try open the file and read the line.
1220 */
1221 FILE *phFile = fopen(Line.szFilename, "r");
1222 if (phFile)
1223 {
1224 /* Skip ahead to the desired line. */
1225 char szLine[4096];
1226 unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1227 if (cBefore > 7)
1228 cBefore = 0;
1229 unsigned cLeft = Line.uLineNo - cBefore;
1230 while (cLeft > 0)
1231 {
1232 szLine[0] = '\0';
1233 if (!fgets(szLine, sizeof(szLine), phFile))
1234 break;
1235 cLeft--;
1236 }
1237 if (!cLeft)
1238 {
1239 /* print the before lines */
1240 for (;;)
1241 {
1242 size_t cch = strlen(szLine);
1243 while (cch > 0 && (szLine[cch - 1] == '\r' || szLine[cch - 1] == '\n' || RT_C_IS_SPACE(szLine[cch - 1])) )
1244 szLine[--cch] = '\0';
1245 if (cBefore-- <= 0)
1246 break;
1247
1248 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1249 szLine[0] = '\0';
1250 fgets(szLine, sizeof(szLine), phFile);
1251 cLines++;
1252 }
1253 /* print the actual line */
1254 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1255 }
1256 fclose(phFile);
1257 if (RT_FAILURE(rc))
1258 return rc;
1259 fFirst = false;
1260 }
1261 else
1262 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1263
1264 LinePrev = Line;
1265 }
1266
1267
1268 /*
1269 * Advance
1270 */
1271 if (iRangeLeft < 0) /* 'r' */
1272 break;
1273 if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1274 iRangeLeft -= cLines;
1275 else
1276 iRangeLeft -= 1;
1277 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1278 if (RT_FAILURE(rc))
1279 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1280 if (iRangeLeft <= 0)
1281 break;
1282 }
1283
1284 NOREF(pCmd);
1285 return 0;
1286}
1287
1288
1289/**
1290 * The 'r' command.
1291 *
1292 * @returns VBox status.
1293 * @param pCmd Pointer to the command descriptor (as registered).
1294 * @param pCmdHlp Pointer to command helper functions.
1295 * @param pVM Pointer to the current VM (if any).
1296 * @param paArgs Pointer to (readonly) array of arguments.
1297 * @param cArgs Number of arguments in the array.
1298 */
1299static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
1300{
1301 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1302 if (!pDbgc->fRegCtxGuest)
1303 return dbgcCmdRegHyper(pCmd, pCmdHlp, pVM, paArgs, cArgs);
1304 return dbgcCmdRegGuest(pCmd, pCmdHlp, pVM, paArgs, cArgs);
1305}
1306
1307
1308/**
1309 * Common worker for the dbgcCmdReg*() commands.
1310 *
1311 * @returns VBox status.
1312 * @param pCmd Pointer to the command descriptor (as registered).
1313 * @param pCmdHlp Pointer to command helper functions.
1314 * @param pVM Pointer to the current VM (if any).
1315 * @param paArgs Pointer to (readonly) array of arguments.
1316 * @param cArgs Number of arguments in the array.
1317 * @param pszPrefix The symbol prefix.
1318 */
1319static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs,
1320 const char *pszPrefix)
1321{
1322 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1323 Assert(cArgs == 1 || cArgs == 2); /* cArgs == 0 is handled by the caller */
1324 if ( paArgs[0].enmType != DBGCVAR_TYPE_STRING
1325 && paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL)
1326 return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. Try drop the '@' or/and quote the register name\n");
1327
1328 /*
1329 * Parse the register name and kind.
1330 */
1331 const char *pszReg = paArgs[0].u.pszString;
1332 if (*pszReg == '@')
1333 pszReg++;
1334 VMCPUID idCpu = pDbgc->idCpu;
1335 if (*pszPrefix)
1336 idCpu |= DBGFREG_HYPER_VMCPUID;
1337 if (*pszReg == '.')
1338 {
1339 pszReg++;
1340 idCpu |= DBGFREG_HYPER_VMCPUID;
1341 }
1342 const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1343
1344 /*
1345 * Query the register type & value (the setter needs the type).
1346 */
1347 DBGFREGVALTYPE enmType;
1348 DBGFREGVAL Value;
1349 int rc = DBGFR3RegNmQuery(pVM, idCpu, pszReg, &Value, &enmType);
1350 if (RT_FAILURE(rc))
1351 {
1352 if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1353 return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1354 pszActualPrefix, pszReg);
1355 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1356 pszActualPrefix, pszReg, rc);
1357 }
1358 if (cArgs == 1)
1359 {
1360 /*
1361 * Show the register.
1362 */
1363 char szValue[160];
1364 rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /*fSpecial*/);
1365 if (RT_SUCCESS(rc))
1366 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1367 else
1368 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1369 }
1370 else if (cArgs == 2)
1371 {
1372 /*
1373 * Modify the register.
1374 */
1375 if ( paArgs[1].enmType == DBGCVAR_TYPE_STRING
1376 || paArgs[1].enmType == DBGCVAR_TYPE_SYMBOL)
1377 return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly on the 2nd argument yet...\n");
1378 if (enmType != DBGFREGVALTYPE_DTR)
1379 {
1380 enmType = DBGFREGVALTYPE_U64;
1381 rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.u64);
1382 }
1383 else
1384 {
1385 enmType = DBGFREGVALTYPE_DTR;
1386 rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.dtr.u64Base);
1387 if (RT_SUCCESS(rc) && paArgs[1].enmRangeType != DBGCVAR_RANGE_NONE)
1388 Value.dtr.u32Limit = (uint32_t)paArgs[1].u64Range;
1389 }
1390 if (RT_SUCCESS(rc))
1391 {
1392 rc = DBGFR3RegNmSet(pVM, idCpu, pszReg, &Value, enmType);
1393 if (RT_FAILURE(rc))
1394 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1395 pszActualPrefix, pszReg, rc);
1396 }
1397 else
1398 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1399 }
1400 else
1401 {
1402 NOREF(pCmd); NOREF(paArgs);
1403 rc = DBGCCmdHlpPrintf(pCmdHlp, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1404 }
1405 return rc;
1406}
1407
1408
1409/**
1410 * The 'rg', 'rg64' and 'rg32' commands.
1411 *
1412 * @returns VBox status.
1413 * @param pCmd Pointer to the command descriptor (as registered).
1414 * @param pCmdHlp Pointer to command helper functions.
1415 * @param pVM Pointer to the current VM (if any).
1416 * @param paArgs Pointer to (readonly) array of arguments.
1417 * @param cArgs Number of arguments in the array.
1418 */
1419static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
1420{
1421 /*
1422 * Show all registers our selves.
1423 */
1424 if (cArgs == 0)
1425 {
1426 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1427 bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1428 || ( !strcmp(pCmd->pszCmd, "rg32")
1429 && CPUMIsGuestIn64BitCodeEx(CPUMQueryGuestCtxPtr(VMMGetCpuById(pVM, pDbgc->idCpu))));
1430 char szDisAndRegs[8192];
1431 int rc;
1432
1433 if (pDbgc->fRegTerse)
1434 {
1435 if (f64BitMode)
1436 rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1437 "u %016VR{rip} L 0\n"
1438 "rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1439 "rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1440 "r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1441 "r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1442 "rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1443 "cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1444 else
1445 rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1446 "u %04VR{cs}:%08VR{eip} L 0\n"
1447 "eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1448 "eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1449 "cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1450 }
1451 else
1452 {
1453 if (f64BitMode)
1454 rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1455 "u %016VR{rip} L 0\n"
1456 "rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1457 "rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1458 "r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1459 "r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1460 "rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1461 "cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1462 "ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1463 "es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1464 "fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1465 "gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1466 "ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1467 "dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1468 "dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1469 "gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1470 "ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1471 "tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1472 " sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1473 " efer=%016VR{efer}\n"
1474 " pat=%016VR{pat}\n"
1475 " sf_mask=%016VR{sf_mask}\n"
1476 "krnl_gs_base=%016VR{krnl_gs_base}\n"
1477 " lstar=%016VR{lstar}\n"
1478 " star=%016VR{star} cstar=%016VR{cstar}\n"
1479 "fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1480 );
1481 else
1482 rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1483 "u %04VR{cs}:%08VR{eip} L 0\n"
1484 "eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1485 "eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1486 "cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1487 "ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1488 "es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr7=%08VR{dr7}\n"
1489 "fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr2}\n"
1490 "gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr3} cr4=%08VR{cr4}\n"
1491 "ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1492 "gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1493 "ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1494 "tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1495 "sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1496 "fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1497 );
1498 }
1499 if (RT_FAILURE(rc))
1500 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1501 char *pszRegs = strchr(szDisAndRegs, '\n');
1502 *pszRegs++ = '\0';
1503 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1504
1505 /*
1506 * Disassemble one instruction at cs:[r|e]ip.
1507 */
1508 return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1509 }
1510 return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, "");
1511}
1512
1513
1514/**
1515 * The 'rh' command.
1516 *
1517 * @returns VBox status.
1518 * @param pCmd Pointer to the command descriptor (as registered).
1519 * @param pCmdHlp Pointer to command helper functions.
1520 * @param pVM Pointer to the current VM (if any).
1521 * @param paArgs Pointer to (readonly) array of arguments.
1522 * @param cArgs Number of arguments in the array.
1523 */
1524static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
1525{
1526 /*
1527 * Show all registers our selves.
1528 */
1529 if (cArgs == 0)
1530 {
1531 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1532 char szDisAndRegs[8192];
1533 int rc;
1534
1535 if (pDbgc->fRegTerse)
1536 rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu | DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1537 "u %VR{cs}:%VR{eip} L 0\n"
1538 ".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1539 ".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1540 ".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1541 else
1542 rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu | DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1543 "u %04VR{cs}:%08VR{eip} L 0\n"
1544 ".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1545 ".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1546 ".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1547 ".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1548 ".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1549 ".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1550 ".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1551 ".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1552 ".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1553 ".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1554 ".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1555 );
1556 if (RT_FAILURE(rc))
1557 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1558 char *pszRegs = strchr(szDisAndRegs, '\n');
1559 *pszRegs++ = '\0';
1560 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1561
1562 /*
1563 * Disassemble one instruction at cs:[r|e]ip.
1564 */
1565 return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1566 }
1567 return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, ".");
1568}
1569
1570
1571/**
1572 * The 'rt' command.
1573 *
1574 * @returns VBox status.
1575 * @param pCmd Pointer to the command descriptor (as registered).
1576 * @param pCmdHlp Pointer to command helper functions.
1577 * @param pVM Pointer to the current VM (if any).
1578 * @param paArgs Pointer to (readonly) array of arguments.
1579 * @param cArgs Number of arguments in the array.
1580 */
1581static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
1582{
1583 NOREF(pCmd); NOREF(pVM); NOREF(paArgs); NOREF(cArgs);
1584
1585 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1586 pDbgc->fRegTerse = !pDbgc->fRegTerse;
1587 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1588}
1589
1590
1591/**
1592 * The 't' command.
1593 *
1594 * @returns VBox status.
1595 * @param pCmd Pointer to the command descriptor (as registered).
1596 * @param pCmdHlp Pointer to command helper functions.
1597 * @param pVM Pointer to the current VM (if any).
1598 * @param paArgs Pointer to (readonly) array of arguments.
1599 * @param cArgs Number of arguments in the array.
1600 */
1601static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
1602{
1603 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1604
1605 int rc = DBGFR3Step(pVM, pDbgc->idCpu);
1606 if (RT_SUCCESS(rc))
1607 pDbgc->fReady = false;
1608 else
1609 rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1610
1611 NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
1612 return rc;
1613}
1614
1615
1616/**
1617 * The 'k', 'kg' and 'kh' commands.
1618 *
1619 * @returns VBox status.
1620 * @param pCmd Pointer to the command descriptor (as registered).
1621 * @param pCmdHlp Pointer to command helper functions.
1622 * @param pVM Pointer to the current VM (if any).
1623 * @param paArgs Pointer to (readonly) array of arguments.
1624 * @param cArgs Number of arguments in the array.
1625 */
1626static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
1627{
1628 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1629
1630 /*
1631 * Figure which context we're called for and start walking that stack.
1632 */
1633 int rc;
1634 PCDBGFSTACKFRAME pFirstFrame;
1635 bool const fGuest = pCmd->pszCmd[1] == 'g'
1636 || (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1637 rc = DBGFR3StackWalkBegin(pVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1638 if (RT_FAILURE(rc))
1639 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to begin stack walk, rc=%Rrc\n", rc);
1640
1641 /*
1642 * Print header.
1643 * 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1644 */
1645 uint32_t fBitFlags = 0;
1646 for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1647 pFrame;
1648 pFrame = DBGFR3StackWalkNext(pFrame))
1649 {
1650 uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT | DBGFSTACKFRAME_FLAGS_32BIT | DBGFSTACKFRAME_FLAGS_64BIT);
1651 if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1652 {
1653 if (fCurBitFlags != fBitFlags)
1654 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1655 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1656 pFrame->AddrFrame.Sel,
1657 (uint16_t)pFrame->AddrFrame.off,
1658 pFrame->AddrReturnFrame.Sel,
1659 (uint16_t)pFrame->AddrReturnFrame.off,
1660 (uint32_t)pFrame->AddrReturnPC.Sel,
1661 (uint32_t)pFrame->AddrReturnPC.off,
1662 pFrame->Args.au32[0],
1663 pFrame->Args.au32[1],
1664 pFrame->Args.au32[2],
1665 pFrame->Args.au32[3]);
1666 }
1667 else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1668 {
1669 if (fCurBitFlags != fBitFlags)
1670 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1671 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1672 (uint32_t)pFrame->AddrFrame.off,
1673 (uint32_t)pFrame->AddrReturnFrame.off,
1674 (uint32_t)pFrame->AddrReturnPC.Sel,
1675 (uint32_t)pFrame->AddrReturnPC.off,
1676 pFrame->Args.au32[0],
1677 pFrame->Args.au32[1],
1678 pFrame->Args.au32[2],
1679 pFrame->Args.au32[3]);
1680 }
1681 else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1682 {
1683 if (fCurBitFlags != fBitFlags)
1684 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1685 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%016RX64 %04RX16:%016RX64 %016RX64",
1686 (uint64_t)pFrame->AddrFrame.off,
1687 pFrame->AddrReturnFrame.Sel,
1688 (uint64_t)pFrame->AddrReturnFrame.off,
1689 (uint64_t)pFrame->AddrReturnPC.off);
1690 }
1691 if (RT_FAILURE(rc))
1692 break;
1693 if (!pFrame->pSymPC)
1694 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1695 fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1696 ? " %RTsel:%016RGv"
1697 : fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1698 ? " %RTsel:%08RGv"
1699 : " %RTsel:%04RGv"
1700 , pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1701 else
1702 {
1703 RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1704 if (offDisp > 0)
1705 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1706 else if (offDisp < 0)
1707 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1708 else
1709 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s", pFrame->pSymPC->szName);
1710 }
1711 if (RT_SUCCESS(rc) && pFrame->pLinePC)
1712 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1713 if (RT_SUCCESS(rc))
1714 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
1715 if (RT_FAILURE(rc))
1716 break;
1717
1718 fBitFlags = fCurBitFlags;
1719 }
1720
1721 DBGFR3StackWalkEnd(pFirstFrame);
1722
1723 NOREF(paArgs); NOREF(cArgs);
1724 return rc;
1725}
1726
1727
1728static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1729{
1730 /* GUEST64 */
1731 int rc;
1732
1733 const char *pszHyper = fHyper ? " HYPER" : "";
1734 const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1735 if (pDesc->Gen.u1DescType)
1736 {
1737 static const char * const s_apszTypes[] =
1738 {
1739 "DataRO", /* 0 Read-Only */
1740 "DataRO", /* 1 Read-Only - Accessed */
1741 "DataRW", /* 2 Read/Write */
1742 "DataRW", /* 3 Read/Write - Accessed */
1743 "DownRO", /* 4 Expand-down, Read-Only */
1744 "DownRO", /* 5 Expand-down, Read-Only - Accessed */
1745 "DownRW", /* 6 Expand-down, Read/Write */
1746 "DownRW", /* 7 Expand-down, Read/Write - Accessed */
1747 "CodeEO", /* 8 Execute-Only */
1748 "CodeEO", /* 9 Execute-Only - Accessed */
1749 "CodeER", /* A Execute/Readable */
1750 "CodeER", /* B Execute/Readable - Accessed */
1751 "ConfE0", /* C Conforming, Execute-Only */
1752 "ConfE0", /* D Conforming, Execute-Only - Accessed */
1753 "ConfER", /* E Conforming, Execute/Readable */
1754 "ConfER" /* F Conforming, Execute/Readable - Accessed */
1755 };
1756 const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1757 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1758 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1759 uint32_t u32Base = X86DESC_BASE(*pDesc);
1760 uint32_t cbLimit = X86DESC_LIMIT(*pDesc);
1761 if (pDesc->Gen.u1Granularity)
1762 cbLimit <<= PAGE_SHIFT;
1763
1764 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1765 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1766 pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1767 pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1768 }
1769 else
1770 {
1771 static const char * const s_apszTypes[] =
1772 {
1773 "Ill-0 ", /* 0 0000 Reserved (Illegal) */
1774 "Ill-1 ", /* 1 0001 Available 16-bit TSS */
1775 "LDT ", /* 2 0010 LDT */
1776 "Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1777 "Ill-4 ", /* 4 0100 16-bit Call Gate */
1778 "Ill-5 ", /* 5 0101 Task Gate */
1779 "Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1780 "Ill-7 ", /* 7 0111 16-bit Trap Gate */
1781 "Ill-8 ", /* 8 1000 Reserved (Illegal) */
1782 "Tss64A", /* 9 1001 Available 32-bit TSS */
1783 "Ill-A ", /* A 1010 Reserved (Illegal) */
1784 "Tss64B", /* B 1011 Busy 32-bit TSS */
1785 "Call64", /* C 1100 32-bit Call Gate */
1786 "Ill-D ", /* D 1101 Reserved (Illegal) */
1787 "Int64 ", /* E 1110 32-bit Interrupt Gate */
1788 "Trap64" /* F 1111 32-bit Trap Gate */
1789 };
1790 switch (pDesc->Gen.u4Type)
1791 {
1792 /* raw */
1793 case X86_SEL_TYPE_SYS_UNDEFINED:
1794 case X86_SEL_TYPE_SYS_UNDEFINED2:
1795 case X86_SEL_TYPE_SYS_UNDEFINED4:
1796 case X86_SEL_TYPE_SYS_UNDEFINED3:
1797 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1798 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1799 case X86_SEL_TYPE_SYS_286_CALL_GATE:
1800 case X86_SEL_TYPE_SYS_286_INT_GATE:
1801 case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1802 case X86_SEL_TYPE_SYS_TASK_GATE:
1803 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1804 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1805 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1806 break;
1807
1808 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1809 case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1810 case X86_SEL_TYPE_SYS_LDT:
1811 {
1812 const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1813 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1814 const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1815
1816 uint64_t u32Base = X86DESC64_BASE(*pDesc);
1817 uint32_t cbLimit = X86DESC_LIMIT(*pDesc);
1818
1819 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1820 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1821 pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1822 pDesc->Gen.u1Available, pDesc->Gen.u1Long | (pDesc->Gen.u1DefBig << 1),
1823 pszHyper);
1824 if (pfDblEntry)
1825 *pfDblEntry = true;
1826 break;
1827 }
1828
1829 case X86_SEL_TYPE_SYS_386_CALL_GATE:
1830 {
1831 unsigned cParams = pDesc->au8[4] & 0x1f;
1832 const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1833 RTSEL sel = pDesc->au16[1];
1834 uint64_t off = pDesc->au16[0]
1835 | ((uint64_t)pDesc->au16[3] << 16)
1836 | ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1837 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1838 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1839 pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1840 if (pfDblEntry)
1841 *pfDblEntry = true;
1842 break;
1843 }
1844
1845 case X86_SEL_TYPE_SYS_386_INT_GATE:
1846 case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1847 {
1848 RTSEL sel = pDesc->au16[1];
1849 uint64_t off = pDesc->au16[0]
1850 | ((uint64_t)pDesc->au16[3] << 16)
1851 | ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1852 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1853 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1854 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1855 if (pfDblEntry)
1856 *pfDblEntry = true;
1857 break;
1858 }
1859
1860 /* impossible, just it's necessary to keep gcc happy. */
1861 default:
1862 return VINF_SUCCESS;
1863 }
1864 }
1865 return VINF_SUCCESS;
1866}
1867
1868
1869/**
1870 * Worker function that displays one descriptor entry (GDT, LDT, IDT).
1871 *
1872 * @returns pfnPrintf status code.
1873 * @param pCmdHlp The DBGC command helpers.
1874 * @param pDesc The descriptor to display.
1875 * @param iEntry The descriptor entry number.
1876 * @param fHyper Whether the selector belongs to the hypervisor or not.
1877 */
1878static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1879{
1880 int rc;
1881
1882 const char *pszHyper = fHyper ? " HYPER" : "";
1883 const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1884 if (pDesc->Gen.u1DescType)
1885 {
1886 static const char * const s_apszTypes[] =
1887 {
1888 "DataRO", /* 0 Read-Only */
1889 "DataRO", /* 1 Read-Only - Accessed */
1890 "DataRW", /* 2 Read/Write */
1891 "DataRW", /* 3 Read/Write - Accessed */
1892 "DownRO", /* 4 Expand-down, Read-Only */
1893 "DownRO", /* 5 Expand-down, Read-Only - Accessed */
1894 "DownRW", /* 6 Expand-down, Read/Write */
1895 "DownRW", /* 7 Expand-down, Read/Write - Accessed */
1896 "CodeEO", /* 8 Execute-Only */
1897 "CodeEO", /* 9 Execute-Only - Accessed */
1898 "CodeER", /* A Execute/Readable */
1899 "CodeER", /* B Execute/Readable - Accessed */
1900 "ConfE0", /* C Conforming, Execute-Only */
1901 "ConfE0", /* D Conforming, Execute-Only - Accessed */
1902 "ConfER", /* E Conforming, Execute/Readable */
1903 "ConfER" /* F Conforming, Execute/Readable - Accessed */
1904 };
1905 const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1906 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1907 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1908 uint32_t u32Base = pDesc->Gen.u16BaseLow
1909 | ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1910 | ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1911 uint32_t cbLimit = pDesc->Gen.u16LimitLow | (pDesc->Gen.u4LimitHigh << 16);
1912 if (pDesc->Gen.u1Granularity)
1913 cbLimit <<= PAGE_SHIFT;
1914
1915 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1916 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1917 pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1918 pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1919 }
1920 else
1921 {
1922 static const char * const s_apszTypes[] =
1923 {
1924 "Ill-0 ", /* 0 0000 Reserved (Illegal) */
1925 "Tss16A", /* 1 0001 Available 16-bit TSS */
1926 "LDT ", /* 2 0010 LDT */
1927 "Tss16B", /* 3 0011 Busy 16-bit TSS */
1928 "Call16", /* 4 0100 16-bit Call Gate */
1929 "TaskG ", /* 5 0101 Task Gate */
1930 "Int16 ", /* 6 0110 16-bit Interrupt Gate */
1931 "Trap16", /* 7 0111 16-bit Trap Gate */
1932 "Ill-8 ", /* 8 1000 Reserved (Illegal) */
1933 "Tss32A", /* 9 1001 Available 32-bit TSS */
1934 "Ill-A ", /* A 1010 Reserved (Illegal) */
1935 "Tss32B", /* B 1011 Busy 32-bit TSS */
1936 "Call32", /* C 1100 32-bit Call Gate */
1937 "Ill-D ", /* D 1101 Reserved (Illegal) */
1938 "Int32 ", /* E 1110 32-bit Interrupt Gate */
1939 "Trap32" /* F 1111 32-bit Trap Gate */
1940 };
1941 switch (pDesc->Gen.u4Type)
1942 {
1943 /* raw */
1944 case X86_SEL_TYPE_SYS_UNDEFINED:
1945 case X86_SEL_TYPE_SYS_UNDEFINED2:
1946 case X86_SEL_TYPE_SYS_UNDEFINED4:
1947 case X86_SEL_TYPE_SYS_UNDEFINED3:
1948 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1949 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1950 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1951 break;
1952
1953 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1954 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1955 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1956 case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1957 case X86_SEL_TYPE_SYS_LDT:
1958 {
1959 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1960 const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1961 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1962 uint32_t u32Base = pDesc->Gen.u16BaseLow
1963 | ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1964 | ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1965 uint32_t cbLimit = pDesc->Gen.u16LimitLow | (pDesc->Gen.u4LimitHigh << 16);
1966 if (pDesc->Gen.u1Granularity)
1967 cbLimit <<= PAGE_SHIFT;
1968
1969 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1970 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1971 pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1972 pDesc->Gen.u1Available, pDesc->Gen.u1Long | (pDesc->Gen.u1DefBig << 1),
1973 pszHyper);
1974 break;
1975 }
1976
1977 case X86_SEL_TYPE_SYS_TASK_GATE:
1978 {
1979 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s TSS=%04x DPL=%d %s%s\n",
1980 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1981 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1982 break;
1983 }
1984
1985 case X86_SEL_TYPE_SYS_286_CALL_GATE:
1986 case X86_SEL_TYPE_SYS_386_CALL_GATE:
1987 {
1988 unsigned cParams = pDesc->au8[4] & 0x1f;
1989 const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1990 RTSEL sel = pDesc->au16[1];
1991 uint32_t off = pDesc->au16[0] | ((uint32_t)pDesc->au16[3] << 16);
1992 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
1993 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1994 pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1995 break;
1996 }
1997
1998 case X86_SEL_TYPE_SYS_286_INT_GATE:
1999 case X86_SEL_TYPE_SYS_386_INT_GATE:
2000 case X86_SEL_TYPE_SYS_286_TRAP_GATE:
2001 case X86_SEL_TYPE_SYS_386_TRAP_GATE:
2002 {
2003 RTSEL sel = pDesc->au16[1];
2004 uint32_t off = pDesc->au16[0] | ((uint32_t)pDesc->au16[3] << 16);
2005 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
2006 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2007 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
2008 break;
2009 }
2010
2011 /* impossible, just it's necessary to keep gcc happy. */
2012 default:
2013 return VINF_SUCCESS;
2014 }
2015 }
2016 return rc;
2017}
2018
2019
2020/**
2021 * The 'dg', 'dga', 'dl' and 'dla' commands.
2022 *
2023 * @returns VBox status.
2024 * @param pCmd Pointer to the command descriptor (as registered).
2025 * @param pCmdHlp Pointer to command helper functions.
2026 * @param pVM Pointer to the current VM (if any).
2027 * @param paArgs Pointer to (readonly) array of arguments.
2028 * @param cArgs Number of arguments in the array.
2029 */
2030static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
2031{
2032 /*
2033 * Validate input.
2034 */
2035 if (!pVM)
2036 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2037
2038 /*
2039 * Get the CPU mode, check which command variation this is
2040 * and fix a default parameter if needed.
2041 */
2042 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2043 PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
2044 CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2045 bool fGdt = pCmd->pszCmd[1] == 'g';
2046 bool fAll = pCmd->pszCmd[2] == 'a';
2047 RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
2048
2049 DBGCVAR Var;
2050 if (!cArgs)
2051 {
2052 cArgs = 1;
2053 paArgs = &Var;
2054 Var.enmType = DBGCVAR_TYPE_NUMBER;
2055 Var.u.u64Number = 0;
2056 Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2057 Var.u64Range = 1024;
2058 }
2059
2060 /*
2061 * Process the arguments.
2062 */
2063 for (unsigned i = 0; i < cArgs; i++)
2064 {
2065 /*
2066 * Retrieve the selector value from the argument.
2067 * The parser may confuse pointers and numbers if more than one
2068 * argument is given, that that into account.
2069 */
2070 /* check that what we got makes sense as we don't trust the parser yet. */
2071 if ( paArgs[i].enmType != DBGCVAR_TYPE_NUMBER
2072 && !DBGCVAR_ISPOINTER(paArgs[i].enmType))
2073 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number or pointer type but %d.\n", i, paArgs[i].enmType);
2074 uint64_t u64;
2075 unsigned cSels = 1;
2076 switch (paArgs[i].enmType)
2077 {
2078 case DBGCVAR_TYPE_NUMBER:
2079 u64 = paArgs[i].u.u64Number;
2080 if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2081 cSels = RT_MIN(paArgs[i].u64Range, 1024);
2082 break;
2083 case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2084 case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2085 case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2086 case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2087 case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2088 default: u64 = _64K; break;
2089 }
2090 if (u64 < _64K)
2091 {
2092 unsigned Sel = (RTSEL)u64;
2093
2094 /*
2095 * Dump the specified range.
2096 */
2097 bool fSingle = cSels == 1;
2098 while ( cSels-- > 0
2099 && Sel < _64K)
2100 {
2101 DBGFSELINFO SelInfo;
2102 int rc = DBGFR3SelQueryInfo(pVM, pDbgc->idCpu, Sel | SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2103 if (RT_SUCCESS(rc))
2104 {
2105 if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2106 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x RealM Bas=%04x Lim=%04x\n",
2107 Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2108 else if ( fAll
2109 || fSingle
2110 || SelInfo.u.Raw.Gen.u1Present)
2111 {
2112 if (enmMode == CPUMMODE_PROTECTED)
2113 rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2114 else
2115 {
2116 bool fDblSkip = false;
2117 rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2118 if (fDblSkip)
2119 Sel += 4;
2120 }
2121 }
2122 }
2123 else
2124 {
2125 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %Rrc\n", Sel, rc);
2126 if (!fAll)
2127 return rc;
2128 }
2129 if (RT_FAILURE(rc))
2130 return rc;
2131
2132 /* next */
2133 Sel += 8;
2134 }
2135 }
2136 else
2137 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds\n", u64);
2138 }
2139
2140 return VINF_SUCCESS;
2141}
2142
2143
2144/**
2145 * The 'di' and 'dia' commands.
2146 *
2147 * @returns VBox status.
2148 * @param pCmd Pointer to the command descriptor (as registered).
2149 * @param pCmdHlp Pointer to command helper functions.
2150 * @param pVM Pointer to the current VM (if any).
2151 * @param paArgs Pointer to (readonly) array of arguments.
2152 * @param cArgs Number of arguments in the array.
2153 */
2154static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
2155{
2156 /*
2157 * Validate input.
2158 */
2159 if (!pVM)
2160 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2161
2162 /*
2163 * Establish some stuff like the current IDTR and CPU mode,
2164 * and fix a default parameter.
2165 */
2166 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2167 PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
2168 uint16_t cbLimit;
2169 RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2170 CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2171 unsigned cbEntry;
2172 switch (enmMode)
2173 {
2174 case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2175 case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2176 case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2177 default:
2178 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid CPU mode %d.\n", enmMode);
2179 }
2180
2181 bool fAll = pCmd->pszCmd[2] == 'a';
2182 DBGCVAR Var;
2183 if (!cArgs)
2184 {
2185 cArgs = 1;
2186 paArgs = &Var;
2187 Var.enmType = DBGCVAR_TYPE_NUMBER;
2188 Var.u.u64Number = 0;
2189 Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2190 Var.u64Range = 256;
2191 }
2192
2193 /*
2194 * Process the arguments.
2195 */
2196 for (unsigned i = 0; i < cArgs; i++)
2197 {
2198 /* check that what we got makes sense as we don't trust the parser yet. */
2199 if (paArgs[i].enmType != DBGCVAR_TYPE_NUMBER)
2200 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number type but %d.\n", i, paArgs[i].enmType);
2201 if (paArgs[i].u.u64Number < 256)
2202 {
2203 RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2204 unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2205 ? paArgs[i].u64Range
2206 : 1;
2207 bool fSingle = cInts == 1;
2208 while ( cInts-- > 0
2209 && iInt < 256)
2210 {
2211 /*
2212 * Try read it.
2213 */
2214 union
2215 {
2216 RTFAR16 Real;
2217 X86DESC Prot;
2218 X86DESC64 Long;
2219 } u;
2220 if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2221 {
2222 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x not within the IDT\n", (unsigned)iInt);
2223 if (!fAll && !fSingle)
2224 return VINF_SUCCESS;
2225 }
2226 DBGCVAR AddrVar;
2227 AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2228 AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2229 AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2230 int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &u, cbEntry, &AddrVar, NULL);
2231 if (RT_FAILURE(rc))
2232 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2233
2234 /*
2235 * Display it.
2236 */
2237 switch (enmMode)
2238 {
2239 case CPUMMODE_REAL:
2240 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2241 /** @todo resolve 16:16 IDTE to a symbol */
2242 break;
2243 case CPUMMODE_PROTECTED:
2244 if (fAll || fSingle || u.Prot.Gen.u1Present)
2245 rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2246 break;
2247 case CPUMMODE_LONG:
2248 if (fAll || fSingle || u.Long.Gen.u1Present)
2249 rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2250 break;
2251 default: break; /* to shut up gcc */
2252 }
2253 if (RT_FAILURE(rc))
2254 return rc;
2255
2256 /* next */
2257 iInt++;
2258 }
2259 }
2260 else
2261 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2262 }
2263
2264 return VINF_SUCCESS;
2265}
2266
2267
2268/**
2269 * The 'da', 'dq', 'dd', 'dw' and 'db' commands.
2270 *
2271 * @returns VBox status.
2272 * @param pCmd Pointer to the command descriptor (as registered).
2273 * @param pCmdHlp Pointer to command helper functions.
2274 * @param pVM Pointer to the current VM (if any).
2275 * @param paArgs Pointer to (readonly) array of arguments.
2276 * @param cArgs Number of arguments in the array.
2277 */
2278static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
2279{
2280 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2281
2282 /*
2283 * Validate input.
2284 */
2285 if ( cArgs > 1
2286 || (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2287 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2288 if (!pVM)
2289 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2290
2291 /*
2292 * Figure out the element size.
2293 */
2294 unsigned cbElement;
2295 bool fAscii = false;
2296 switch (pCmd->pszCmd[1])
2297 {
2298 default:
2299 case 'b': cbElement = 1; break;
2300 case 'w': cbElement = 2; break;
2301 case 'd': cbElement = 4; break;
2302 case 'q': cbElement = 8; break;
2303 case 'a':
2304 cbElement = 1;
2305 fAscii = true;
2306 break;
2307 case '\0':
2308 fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2309 cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2310 if (!cbElement)
2311 cbElement = 1;
2312 break;
2313 }
2314
2315 /*
2316 * Find address.
2317 */
2318 if (!cArgs)
2319 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2320 else
2321 pDbgc->DumpPos = paArgs[0];
2322
2323 /*
2324 * Range.
2325 */
2326 switch (pDbgc->DumpPos.enmRangeType)
2327 {
2328 case DBGCVAR_RANGE_NONE:
2329 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2330 pDbgc->DumpPos.u64Range = 0x60;
2331 break;
2332
2333 case DBGCVAR_RANGE_ELEMENTS:
2334 if (pDbgc->DumpPos.u64Range > 2048)
2335 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many elements requested. Max is 2048 elements.\n");
2336 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2337 pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2338 break;
2339
2340 case DBGCVAR_RANGE_BYTES:
2341 if (pDbgc->DumpPos.u64Range > 65536)
2342 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
2343 break;
2344
2345 default:
2346 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2347 }
2348
2349 pDbgc->pLastPos = &pDbgc->DumpPos;
2350
2351 /*
2352 * Do the dumping.
2353 */
2354 pDbgc->cbDumpElement = cbElement | (fAscii << 31);
2355 int cbLeft = (int)pDbgc->DumpPos.u64Range;
2356 uint8_t u8Prev = '\0';
2357 for (;;)
2358 {
2359 /*
2360 * Read memory.
2361 */
2362 char achBuffer[16];
2363 size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2364 size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2365 int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2366 if (RT_FAILURE(rc))
2367 {
2368 if (u8Prev && u8Prev != '\n')
2369 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2370 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2371 }
2372
2373 /*
2374 * Display it.
2375 */
2376 memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2377 if (!fAscii)
2378 {
2379 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:", &pDbgc->DumpPos);
2380 unsigned i;
2381 for (i = 0; i < cb; i += cbElement)
2382 {
2383 const char *pszSpace = " ";
2384 if (cbElement <= 2 && i == 8 && !fAscii)
2385 pszSpace = "-";
2386 switch (cbElement)
2387 {
2388 case 1: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%02x", pszSpace, *(uint8_t *)&achBuffer[i]); break;
2389 case 2: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%04x", pszSpace, *(uint16_t *)&achBuffer[i]); break;
2390 case 4: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%08x", pszSpace, *(uint32_t *)&achBuffer[i]); break;
2391 case 8: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%016llx", pszSpace, *(uint64_t *)&achBuffer[i]); break;
2392 }
2393 }
2394
2395 /* chars column */
2396 if (pDbgc->cbDumpElement == 1)
2397 {
2398 while (i++ < sizeof(achBuffer))
2399 pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2400 pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2401 for (i = 0; i < cb; i += cbElement)
2402 {
2403 uint8_t u8 = *(uint8_t *)&achBuffer[i];
2404 if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2405 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2406 else
2407 pCmdHlp->pfnPrintf(pCmdHlp, NULL, ".");
2408 }
2409 }
2410 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2411 }
2412 else
2413 {
2414 /*
2415 * We print up to the first zero and stop there.
2416 * Only printables + '\t' and '\n' are printed.
2417 */
2418 if (!u8Prev)
2419 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DumpPos);
2420 uint8_t u8 = '\0';
2421 unsigned i;
2422 for (i = 0; i < cb; i++)
2423 {
2424 u8Prev = u8;
2425 u8 = *(uint8_t *)&achBuffer[i];
2426 if ( u8 < 127
2427 && ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2428 || u8 == '\t'
2429 || u8 == '\n'))
2430 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2431 else if (!u8)
2432 break;
2433 else
2434 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\\x%x", u8);
2435 }
2436 if (u8 == '\0')
2437 cb = cbLeft = i + 1;
2438 if (cbLeft - cb <= 0 && u8Prev != '\n')
2439 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2440 }
2441
2442 /*
2443 * Advance
2444 */
2445 cbLeft -= (int)cb;
2446 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2447 if (RT_FAILURE(rc))
2448 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2449 if (cbLeft <= 0)
2450 break;
2451 }
2452
2453 NOREF(pCmd);
2454 return VINF_SUCCESS;
2455}
2456
2457
2458/**
2459 * Best guess at which paging mode currently applies to the guest
2460 * paging structures.
2461 *
2462 * This have to come up with a decent answer even when the guest
2463 * is in non-paged protected mode or real mode.
2464 *
2465 * @returns cr3.
2466 * @param pDbgc The DBGC instance.
2467 * @param pfPAE Where to store the page address extension indicator.
2468 * @param pfLME Where to store the long mode enabled indicator.
2469 * @param pfPSE Where to store the page size extension indicator.
2470 * @param pfPGE Where to store the page global enabled indicator.
2471 * @param pfNXE Where to store the no-execution enabled indicator.
2472 */
2473static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool *pfPAE, bool *pfLME, bool *pfPSE, bool *pfPGE, bool *pfNXE)
2474{
2475 PVMCPU pVCpu = VMMGetCpuById(pDbgc->pVM, pDbgc->idCpu);
2476 RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2477 *pfPSE = !!(cr4 & X86_CR4_PSE);
2478 *pfPGE = !!(cr4 & X86_CR4_PGE);
2479 if (cr4 & X86_CR4_PAE)
2480 {
2481 *pfPSE = true;
2482 *pfPAE = true;
2483 }
2484 else
2485 *pfPAE = false;
2486
2487 *pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2488 *pfNXE = false; /* GUEST64 GUESTNX */
2489 return CPUMGetGuestCR3(pVCpu);
2490}
2491
2492
2493/**
2494 * Determine the shadow paging mode.
2495 *
2496 * @returns cr3.
2497 * @param pDbgc The DBGC instance.
2498 * @param pfPAE Where to store the page address extension indicator.
2499 * @param pfLME Where to store the long mode enabled indicator.
2500 * @param pfPSE Where to store the page size extension indicator.
2501 * @param pfPGE Where to store the page global enabled indicator.
2502 * @param pfNXE Where to store the no-execution enabled indicator.
2503 */
2504static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool *pfPAE, bool *pfLME, bool *pfPSE, bool *pfPGE, bool *pfNXE)
2505{
2506 PVMCPU pVCpu = VMMGetCpuById(pDbgc->pVM, pDbgc->idCpu);
2507
2508 *pfPSE = true;
2509 *pfPGE = false;
2510 switch (PGMGetShadowMode(pVCpu))
2511 {
2512 default:
2513 case PGMMODE_32_BIT:
2514 *pfPAE = *pfLME = *pfNXE = false;
2515 break;
2516 case PGMMODE_PAE:
2517 *pfLME = *pfNXE = false;
2518 *pfPAE = true;
2519 break;
2520 case PGMMODE_PAE_NX:
2521 *pfLME = false;
2522 *pfPAE = *pfNXE = true;
2523 break;
2524 case PGMMODE_AMD64:
2525 *pfNXE = false;
2526 *pfPAE = *pfLME = true;
2527 break;
2528 case PGMMODE_AMD64_NX:
2529 *pfPAE = *pfLME = *pfNXE = true;
2530 break;
2531 }
2532 return PGMGetHyperCR3(pVCpu);
2533}
2534
2535
2536/**
2537 * The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh' commands.
2538 *
2539 * @returns VBox status.
2540 * @param pCmd Pointer to the command descriptor (as registered).
2541 * @param pCmdHlp Pointer to command helper functions.
2542 * @param pVM Pointer to the current VM (if any).
2543 * @param paArgs Pointer to (readonly) array of arguments.
2544 * @param cArgs Number of arguments in the array.
2545 */
2546static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
2547{
2548 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2549
2550 /*
2551 * Validate input.
2552 */
2553 if ( cArgs > 1
2554 || (cArgs == 1 && pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2555 || (cArgs == 1 && pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER || DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2556 )
2557 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2558 if (!pVM)
2559 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2560
2561 /*
2562 * Guest or shadow page directories? Get the paging parameters.
2563 */
2564 bool fGuest = pCmd->pszCmd[3] != 'h';
2565 if (!pCmd->pszCmd[3] || pCmd->pszCmd[3] == 'a')
2566 fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2567 ? pDbgc->fRegCtxGuest
2568 : DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2569
2570 bool fPAE, fLME, fPSE, fPGE, fNXE;
2571 uint64_t cr3 = fGuest
2572 ? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2573 : dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2574 const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2575
2576 /*
2577 * Setup default argument if none was specified.
2578 * Fix address / index confusion.
2579 */
2580 DBGCVAR VarDefault;
2581 if (!cArgs)
2582 {
2583 if (pCmd->pszCmd[3] == 'a')
2584 {
2585 if (fLME || fPAE)
2586 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");
2587 if (fGuest)
2588 DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2589 else
2590 DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2591 }
2592 else
2593 DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2594 paArgs = &VarDefault;
2595 cArgs = 1;
2596 }
2597 else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2598 {
2599 Assert(pCmd->pszCmd[3] != 'a');
2600 VarDefault = paArgs[0];
2601 if (VarDefault.u.u64Number <= 1024)
2602 {
2603 if (fPAE)
2604 return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2605 if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2606 return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2607 VarDefault.u.u64Number <<= X86_PD_SHIFT;
2608 }
2609 VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2610 paArgs = &VarDefault;
2611 }
2612
2613 /*
2614 * Locate the PDE to start displaying at.
2615 *
2616 * The 'dpda' command takes the address of a PDE, while the others are guest
2617 * virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2618 * while the others require us to do all the tedious walking thru the paging
2619 * hierarchy to find the intended PDE.
2620 */
2621 unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2622 DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2623 DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2624 unsigned cEntries; /* The number of entries to display. */
2625 unsigned cEntriesMax; /* The max number of entries to display. */
2626 int rc;
2627 if (pCmd->pszCmd[3] == 'a')
2628 {
2629 VarPDEAddr = paArgs[0];
2630 switch (VarPDEAddr.enmRangeType)
2631 {
2632 case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2633 case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2634 default: cEntries = 10; break;
2635 }
2636 cEntriesMax = PAGE_SIZE / cbEntry;
2637 }
2638 else
2639 {
2640 /*
2641 * Determine the range.
2642 */
2643 switch (paArgs[0].enmRangeType)
2644 {
2645 case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2646 case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2647 default: cEntries = 10; break;
2648 }
2649
2650 /*
2651 * Normalize the input address, it must be a flat GC address.
2652 */
2653 rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2654 if (RT_FAILURE(rc))
2655 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2656 if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2657 {
2658 VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2659 VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2660 }
2661 if (fPAE)
2662 VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2663 else
2664 VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2665
2666 /*
2667 * Do the paging walk until we get to the page directory.
2668 */
2669 DBGCVAR VarCur;
2670 if (fGuest)
2671 DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2672 else
2673 DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2674 if (fLME)
2675 {
2676 /* Page Map Level 4 Lookup. */
2677 /* Check if it's a valid address first? */
2678 VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2679 VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2680 X86PML4E Pml4e;
2681 rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2682 if (RT_FAILURE(rc))
2683 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2684 if (!Pml4e.n.u1Present)
2685 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2686
2687 VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2688 Assert(fPAE);
2689 }
2690 if (fPAE)
2691 {
2692 /* Page directory pointer table. */
2693 X86PDPE Pdpe;
2694 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2695 rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2696 if (RT_FAILURE(rc))
2697 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2698 if (!Pdpe.n.u1Present)
2699 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2700
2701 iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2702 VarPDEAddr = VarCur;
2703 VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2704 VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2705 }
2706 else
2707 {
2708 /* 32-bit legacy - CR3 == page directory. */
2709 iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2710 VarPDEAddr = VarCur;
2711 VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2712 }
2713 cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2714 iEntry /= cbEntry;
2715 }
2716
2717 /* adjust cEntries */
2718 cEntries = RT_MAX(1, cEntries);
2719 cEntries = RT_MIN(cEntries, cEntriesMax);
2720
2721 /*
2722 * The display loop.
2723 */
2724 DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2725 &VarPDEAddr, iEntry);
2726 do
2727 {
2728 /*
2729 * Read.
2730 */
2731 X86PDEPAE Pde;
2732 Pde.u = 0;
2733 rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, cbEntry, &VarPDEAddr, NULL);
2734 if (RT_FAILURE(rc))
2735 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2736
2737 /*
2738 * Display.
2739 */
2740 if (iEntry != ~0U)
2741 {
2742 DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2743 iEntry++;
2744 }
2745 if (fPSE && Pde.b.u1Size)
2746 DBGCCmdHlpPrintf(pCmdHlp,
2747 fPAE
2748 ? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2749 : "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2750 Pde.u,
2751 Pde.u & X86_PDE_PAE_PG_MASK,
2752 Pde.b.u1Present ? "p " : "np",
2753 Pde.b.u1Write ? "w" : "r",
2754 Pde.b.u1User ? "u" : "s",
2755 Pde.b.u1Accessed ? "a " : "na",
2756 Pde.b.u1Dirty ? "d " : "nd",
2757 Pde.b.u3Available,
2758 Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2759 Pde.b.u1WriteThru ? "pwt" : " ",
2760 Pde.b.u1CacheDisable ? "pcd" : " ",
2761 Pde.b.u1PAT ? "pat" : "",
2762 Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2763 else
2764 DBGCCmdHlpPrintf(pCmdHlp,
2765 fPAE
2766 ? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2767 : "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2768 Pde.u,
2769 Pde.u & X86_PDE_PAE_PG_MASK,
2770 Pde.n.u1Present ? "p " : "np",
2771 Pde.n.u1Write ? "w" : "r",
2772 Pde.n.u1User ? "u" : "s",
2773 Pde.n.u1Accessed ? "a " : "na",
2774 Pde.u & RT_BIT(6) ? "6 " : " ",
2775 Pde.n.u3Available,
2776 Pde.u & RT_BIT(8) ? "8" : " ",
2777 Pde.n.u1WriteThru ? "pwt" : " ",
2778 Pde.n.u1CacheDisable ? "pcd" : " ",
2779 Pde.u & RT_BIT(7) ? "7" : "",
2780 Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2781 if (Pde.u & UINT64_C(0x7fff000000000000))
2782 DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2783 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2784 if (RT_FAILURE(rc))
2785 return rc;
2786
2787 /*
2788 * Advance.
2789 */
2790 VarPDEAddr.u.u64Number += cbEntry;
2791 if (iEntry != ~0U)
2792 VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2793 } while (cEntries-- > 0);
2794
2795 return VINF_SUCCESS;
2796}
2797
2798
2799/**
2800 * The 'dpdb' command.
2801 *
2802 * @returns VBox status.
2803 * @param pCmd Pointer to the command descriptor (as registered).
2804 * @param pCmdHlp Pointer to command helper functions.
2805 * @param pVM Pointer to the current VM (if any).
2806 * @param paArgs Pointer to (readonly) array of arguments.
2807 * @param cArgs Number of arguments in the array.
2808 */
2809static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
2810{
2811 if (!pVM)
2812 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2813 int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2814 int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2815 if (RT_FAILURE(rc1))
2816 return rc1;
2817 NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
2818 return rc2;
2819}
2820
2821
2822/**
2823 * The 'dph*' commands and main part of 'm'.
2824 *
2825 * @returns VBox status.
2826 * @param pCmd Pointer to the command descriptor (as registered).
2827 * @param pCmdHlp Pointer to command helper functions.
2828 * @param pVM Pointer to the current VM (if any).
2829 * @param paArgs Pointer to (readonly) array of arguments.
2830 * @param cArgs Number of arguments in the array.
2831 */
2832static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
2833{
2834 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2835 if (!pVM)
2836 return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
2837
2838 /*
2839 * Figure the context and base flags.
2840 */
2841 uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO | DBGFPGDMP_FLAGS_PRINT_CR3;
2842 if (pCmd->pszCmd[0] == 'm')
2843 fFlags |= DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW;
2844 else if (pCmd->pszCmd[3] == '\0')
2845 fFlags |= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2846 else if (pCmd->pszCmd[3] == 'g')
2847 fFlags |= DBGFPGDMP_FLAGS_GUEST;
2848 else if (pCmd->pszCmd[3] == 'h')
2849 fFlags |= DBGFPGDMP_FLAGS_SHADOW;
2850 else
2851 AssertFailed();
2852
2853 if (pDbgc->cPagingHierarchyDumps == 0)
2854 fFlags |= DBGFPGDMP_FLAGS_HEADER;
2855 pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2856
2857 /*
2858 * Get the range.
2859 */
2860 PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2861 RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2862 int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2863 if (RT_FAILURE(rc))
2864 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2865
2866 uint64_t cbRange;
2867 rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2868 if (RT_FAILURE(rc))
2869 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2870
2871 RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2872 if (cbRange >= GCPtrLast)
2873 GCPtrLast = RTGCPTR_MAX;
2874 else if (!cbRange)
2875 GCPtrLast = GCPtrFirst;
2876 else
2877 GCPtrLast = GCPtrFirst + cbRange - 1;
2878
2879 /*
2880 * Do we have a CR3?
2881 */
2882 uint64_t cr3 = 0;
2883 if (cArgs > 1)
2884 {
2885 if ((fFlags & (DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW))
2886 return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2887 if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2888 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2889 cr3 = paArgs[1].u.u64Number;
2890 }
2891 else
2892 fFlags |= DBGFPGDMP_FLAGS_CURRENT_CR3;
2893
2894 /*
2895 * Do we have a mode?
2896 */
2897 if (cArgs > 2)
2898 {
2899 if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2900 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2901 static const struct MODETOFLAGS
2902 {
2903 const char *pszName;
2904 uint32_t fFlags;
2905 } s_aModeToFlags[] =
2906 {
2907 { "ept", DBGFPGDMP_FLAGS_EPT },
2908 { "legacy", 0 },
2909 { "legacy-np", DBGFPGDMP_FLAGS_NP },
2910 { "pse", DBGFPGDMP_FLAGS_PSE },
2911 { "pse-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_NP },
2912 { "pae", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE },
2913 { "pae-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NP },
2914 { "pae-nx", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NXE },
2915 { "pae-nx-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NXE | DBGFPGDMP_FLAGS_NP },
2916 { "long", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME },
2917 { "long-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NP },
2918 { "long-nx", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NXE },
2919 { "long-nx-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NXE | DBGFPGDMP_FLAGS_NP }
2920 };
2921 int i = RT_ELEMENTS(s_aModeToFlags);
2922 while (i-- > 0)
2923 if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2924 {
2925 fFlags |= s_aModeToFlags[i].fFlags;
2926 break;
2927 }
2928 if (i < 0)
2929 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2930 }
2931 else
2932 fFlags |= DBGFPGDMP_FLAGS_CURRENT_MODE;
2933
2934 /*
2935 * Call the worker.
2936 */
2937 rc = DBGFR3PagingDumpEx(pVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /*cMaxDepth*/,
2938 DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2939 if (RT_FAILURE(rc))
2940 return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2941 return VINF_SUCCESS;
2942}
2943
2944
2945
2946/**
2947 * The 'dpg*' commands.
2948 *
2949 * @returns VBox status.
2950 * @param pCmd Pointer to the command descriptor (as registered).
2951 * @param pCmdHlp Pointer to command helper functions.
2952 * @param pVM Pointer to the current VM (if any).
2953 * @param paArgs Pointer to (readonly) array of arguments.
2954 * @param cArgs Number of arguments in the array.
2955 */
2956static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
2957{
2958 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2959
2960 /*
2961 * Validate input.
2962 */
2963 if ( cArgs != 1
2964 || (pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2965 || (pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER || DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2966 )
2967 return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2968 if (!pVM)
2969 return DBGCCmdHlpPrintf(pCmdHlp, "error: No VM.\n");
2970
2971 /*
2972 * Guest or shadow page tables? Get the paging parameters.
2973 */
2974 bool fGuest = pCmd->pszCmd[3] != 'h';
2975 if (!pCmd->pszCmd[3] || pCmd->pszCmd[3] == 'a')
2976 fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2977 ? pDbgc->fRegCtxGuest
2978 : DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2979
2980 bool fPAE, fLME, fPSE, fPGE, fNXE;
2981 uint64_t cr3 = fGuest
2982 ? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2983 : dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2984 const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2985
2986 /*
2987 * Locate the PTE to start displaying at.
2988 *
2989 * The 'dpta' command takes the address of a PTE, while the others are guest
2990 * virtual address which PTEs should be displayed. So, 'pdta' is rather simple
2991 * while the others require us to do all the tedious walking thru the paging
2992 * hierarchy to find the intended PTE.
2993 */
2994 unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
2995 DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
2996 DBGCVAR VarPTEAddr; /* The address of the current PTE. */
2997 unsigned cEntries; /* The number of entries to display. */
2998 unsigned cEntriesMax; /* The max number of entries to display. */
2999 int rc;
3000 if (pCmd->pszCmd[3] == 'a')
3001 {
3002 VarPTEAddr = paArgs[0];
3003 switch (VarPTEAddr.enmRangeType)
3004 {
3005 case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
3006 case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
3007 default: cEntries = 10; break;
3008 }
3009 cEntriesMax = PAGE_SIZE / cbEntry;
3010 }
3011 else
3012 {
3013 /*
3014 * Determine the range.
3015 */
3016 switch (paArgs[0].enmRangeType)
3017 {
3018 case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
3019 case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
3020 default: cEntries = 10; break;
3021 }
3022
3023 /*
3024 * Normalize the input address, it must be a flat GC address.
3025 */
3026 rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
3027 if (RT_FAILURE(rc))
3028 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3029 if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
3030 {
3031 VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
3032 VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
3033 }
3034 VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
3035
3036 /*
3037 * Do the paging walk until we get to the page table.
3038 */
3039 DBGCVAR VarCur;
3040 if (fGuest)
3041 DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
3042 else
3043 DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
3044 if (fLME)
3045 {
3046 /* Page Map Level 4 Lookup. */
3047 /* Check if it's a valid address first? */
3048 VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
3049 VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
3050 X86PML4E Pml4e;
3051 rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
3052 if (RT_FAILURE(rc))
3053 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
3054 if (!Pml4e.n.u1Present)
3055 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
3056
3057 VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
3058 Assert(fPAE);
3059 }
3060 if (fPAE)
3061 {
3062 /* Page directory pointer table. */
3063 X86PDPE Pdpe;
3064 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
3065 rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
3066 if (RT_FAILURE(rc))
3067 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
3068 if (!Pdpe.n.u1Present)
3069 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
3070
3071 VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
3072
3073 /* Page directory (PAE). */
3074 X86PDEPAE Pde;
3075 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
3076 rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
3077 if (RT_FAILURE(rc))
3078 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3079 if (!Pde.n.u1Present)
3080 return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3081 if (fPSE && Pde.n.u1Size)
3082 return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3083
3084 iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
3085 VarPTEAddr = VarCur;
3086 VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
3087 VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
3088 }
3089 else
3090 {
3091 /* Page directory (legacy). */
3092 X86PDE Pde;
3093 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
3094 rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
3095 if (RT_FAILURE(rc))
3096 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3097 if (!Pde.n.u1Present)
3098 return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3099 if (fPSE && Pde.n.u1Size)
3100 return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3101
3102 iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
3103 VarPTEAddr = VarCur;
3104 VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
3105 VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
3106 }
3107 cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
3108 iEntry /= cbEntry;
3109 }
3110
3111 /* adjust cEntries */
3112 cEntries = RT_MAX(1, cEntries);
3113 cEntries = RT_MIN(cEntries, cEntriesMax);
3114
3115 /*
3116 * The display loop.
3117 */
3118 DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3119 &VarPTEAddr, &VarGCPtr, iEntry);
3120 do
3121 {
3122 /*
3123 * Read.
3124 */
3125 X86PTEPAE Pte;
3126 Pte.u = 0;
3127 rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pte, cbEntry, &VarPTEAddr, NULL);
3128 if (RT_FAILURE(rc))
3129 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3130
3131 /*
3132 * Display.
3133 */
3134 if (iEntry != ~0U)
3135 {
3136 DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3137 iEntry++;
3138 }
3139 DBGCCmdHlpPrintf(pCmdHlp,
3140 fPAE
3141 ? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3142 : "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3143 Pte.u,
3144 Pte.u & X86_PTE_PAE_PG_MASK,
3145 Pte.n.u1Present ? "p " : "np",
3146 Pte.n.u1Write ? "w" : "r",
3147 Pte.n.u1User ? "u" : "s",
3148 Pte.n.u1Accessed ? "a " : "na",
3149 Pte.n.u1Dirty ? "d " : "nd",
3150 Pte.n.u3Available,
3151 Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3152 Pte.n.u1WriteThru ? "pwt" : " ",
3153 Pte.n.u1CacheDisable ? "pcd" : " ",
3154 Pte.n.u1PAT ? "pat" : " ",
3155 Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3156 );
3157 if (Pte.u & UINT64_C(0x7fff000000000000))
3158 DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3159 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3160 if (RT_FAILURE(rc))
3161 return rc;
3162
3163 /*
3164 * Advance.
3165 */
3166 VarPTEAddr.u.u64Number += cbEntry;
3167 if (iEntry != ~0U)
3168 VarGCPtr.u.GCFlat += PAGE_SIZE;
3169 } while (cEntries-- > 0);
3170
3171 return VINF_SUCCESS;
3172}
3173
3174
3175/**
3176 * The 'dptb' command.
3177 *
3178 * @returns VBox status.
3179 * @param pCmd Pointer to the command descriptor (as registered).
3180 * @param pCmdHlp Pointer to command helper functions.
3181 * @param pVM Pointer to the current VM (if any).
3182 * @param paArgs Pointer to (readonly) array of arguments.
3183 * @param cArgs Number of arguments in the array.
3184 */
3185static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
3186{
3187 if (!pVM)
3188 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
3189 int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3190 int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3191 if (RT_FAILURE(rc1))
3192 return rc1;
3193 NOREF(pCmd); NOREF(cArgs);
3194 return rc2;
3195}
3196
3197
3198/**
3199 * The 'dt' command.
3200 *
3201 * @returns VBox status.
3202 * @param pCmd Pointer to the command descriptor (as registered).
3203 * @param pCmdHlp Pointer to command helper functions.
3204 * @param pVM Pointer to the current VM (if any).
3205 * @param paArgs Pointer to (readonly) array of arguments.
3206 * @param cArgs Number of arguments in the array.
3207 */
3208static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
3209{
3210 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3211 int rc;
3212
3213 if (!pVM)
3214 return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
3215 if ( cArgs > 1
3216 || (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_STRING)
3217 || (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL))
3218 return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet...\n");
3219
3220 /*
3221 * Check if the command indicates the type.
3222 */
3223 enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3224 if (!strcmp(pCmd->pszCmd, "dt16"))
3225 enmTssType = kTss16;
3226 else if (!strcmp(pCmd->pszCmd, "dt32"))
3227 enmTssType = kTss32;
3228 else if (!strcmp(pCmd->pszCmd, "dt64"))
3229 enmTssType = kTss64;
3230
3231 /*
3232 * We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3233 */
3234 uint32_t SelTss = UINT32_MAX;
3235 DBGCVAR VarTssAddr;
3236 if (cArgs == 0)
3237 {
3238 /** @todo consider querying the hidden bits instead (missing API). */
3239 uint16_t SelTR;
3240 rc = DBGFR3RegCpuQueryU16(pVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3241 if (RT_FAILURE(rc))
3242 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3243 DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3244 SelTss = SelTR;
3245 }
3246 else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3247 {
3248 if (paArgs[0].u.u64Number < 0xffff)
3249 DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3250 else
3251 {
3252 if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3253 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3254 DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3255 if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3256 {
3257 VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3258 VarTssAddr.u64Range = paArgs[0].u64Range;
3259 }
3260 }
3261 }
3262 else
3263 VarTssAddr = paArgs[0];
3264
3265 /*
3266 * Deal with TSS:ign by means of the GDT.
3267 */
3268 if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3269 {
3270 SelTss = VarTssAddr.u.GCFar.sel;
3271 DBGFSELINFO SelInfo;
3272 rc = DBGFR3SelQueryInfo(pVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3273 if (RT_FAILURE(rc))
3274 return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3275 pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3276
3277 if (SelInfo.u.Raw.Gen.u1DescType)
3278 return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3279
3280 switch (SelInfo.u.Raw.Gen.u4Type)
3281 {
3282 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3283 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3284 if (enmTssType == kTssToBeDetermined)
3285 enmTssType = kTss16;
3286 break;
3287
3288 case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3289 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3290 if (enmTssType == kTssToBeDetermined)
3291 enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3292 break;
3293
3294 default:
3295 return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3296 VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3297 }
3298
3299 DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3300 DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3301 }
3302
3303 /*
3304 * Determine the TSS type if none is currently given.
3305 */
3306 if (enmTssType == kTssToBeDetermined)
3307 {
3308 if ( VarTssAddr.u64Range > 0
3309 && VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3310 enmTssType = kTss16;
3311 else
3312 {
3313 uint64_t uEfer;
3314 rc = DBGFR3RegCpuQueryU64(pVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3315 if ( RT_FAILURE(rc)
3316 || !(uEfer & MSR_K6_EFER_LMA) )
3317 enmTssType = kTss32;
3318 else
3319 enmTssType = kTss64;
3320 }
3321 }
3322
3323 /*
3324 * Figure the min/max sizes.
3325 * ASSUMES max TSS size is 64 KB.
3326 */
3327 uint32_t cbTssMin;
3328 uint32_t cbTssMax;
3329 switch (enmTssType)
3330 {
3331 case kTss16:
3332 cbTssMin = cbTssMax = sizeof(X86TSS16);
3333 break;
3334 case kTss32:
3335 cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3336 cbTssMax = _64K;
3337 break;
3338 case kTss64:
3339 cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3340 cbTssMax = _64K;
3341 break;
3342 default:
3343 AssertFailedReturn(VERR_INTERNAL_ERROR);
3344 }
3345 uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3346 if (cbTss == 0)
3347 cbTss = cbTssMin;
3348 else if (cbTss < cbTssMin)
3349 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3350 cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3351 else if (cbTss > cbTssMax)
3352 cbTss = cbTssMax;
3353 DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3354
3355 /*
3356 * Read the TSS into a temporary buffer.
3357 */
3358 uint8_t abBuf[_64K];
3359 size_t cbTssRead;
3360 rc = DBGCCmdHlpMemRead(pCmdHlp, pVM, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3361 if (RT_FAILURE(rc))
3362 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3363 if (cbTssRead < cbTssMin)
3364 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3365 cbTssRead, cbTssMin);
3366 if (cbTssRead < cbTss)
3367 memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3368
3369
3370 /*
3371 * Format the TSS.
3372 */
3373 uint16_t offIoBitmap;
3374 switch (enmTssType)
3375 {
3376 case kTss16:
3377 {
3378 PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3379 if (SelTss != UINT32_MAX)
3380 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3381 else
3382 DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3383 DBGCCmdHlpPrintf(pCmdHlp,
3384 "ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3385 "ip=%04x sp=%04x bp=%04x\n"
3386 "cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3387 "ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3388 "prev=%04x ldtr=%04x\n"
3389 ,
3390 pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3391 pTss->ip, pTss->sp, pTss->bp,
3392 pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3393 pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3394 pTss->selPrev, pTss->selLdt);
3395 if (pTss->cs != 0)
3396 pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3397 offIoBitmap = 0;
3398 break;
3399 }
3400
3401 case kTss32:
3402 {
3403 PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3404 if (SelTss != UINT32_MAX)
3405 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3406 else
3407 DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3408 DBGCCmdHlpPrintf(pCmdHlp,
3409 "eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3410 "eip=%08x esp=%08x ebp=%08x\n"
3411 "cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3412 "ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3413 "prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3414 ,
3415 pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3416 pTss->eip, pTss->esp, pTss->ebp,
3417 pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3418 pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3419 pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3420 if (pTss->cs != 0)
3421 pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3422 offIoBitmap = pTss->offIoBitmap;
3423 break;
3424 }
3425
3426 case kTss64:
3427 {
3428 PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3429 if (SelTss != UINT32_MAX)
3430 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3431 else
3432 DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3433 DBGCCmdHlpPrintf(pCmdHlp,
3434 "rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3435 "ist1=%016RX16 ist2=%016RX16\n"
3436 "ist3=%016RX16 ist4=%016RX16\n"
3437 "ist5=%016RX16 ist6=%016RX16\n"
3438 "ist7=%016RX16 iomap=%04x\n"
3439 ,
3440 pTss->rsp0, pTss->rsp1, pTss->rsp2,
3441 pTss->ist1, pTss->ist2,
3442 pTss->ist3, pTss->ist4,
3443 pTss->ist5, pTss->ist6,
3444 pTss->ist7, pTss->offIoBitmap);
3445 offIoBitmap = pTss->offIoBitmap;
3446 break;
3447 }
3448
3449 default:
3450 AssertFailedReturn(VERR_INTERNAL_ERROR);
3451 }
3452
3453 /*
3454 * Dump the interrupt redirection bitmap.
3455 */
3456 if (enmTssType != kTss16)
3457 {
3458 if ( offIoBitmap > cbTssMin
3459 && offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3460 {
3461 if (offIoBitmap - cbTssMin >= 32)
3462 {
3463 DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3464 uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3465 uint32_t iStart = 0;
3466 bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3467 for (uint32_t i = 0; i < 256; i++)
3468 {
3469 bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3470 if (fThis != fPrev)
3471 {
3472 DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3473 fPrev = fThis;
3474 iStart = i;
3475 }
3476 }
3477 if (iStart != 255)
3478 DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3479 }
3480 else
3481 DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3482 offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3483 }
3484 else if (offIoBitmap > 0)
3485 DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3486 else
3487 DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3488 }
3489
3490 /*
3491 * Dump the I/O bitmap if present.
3492 */
3493 if (enmTssType != kTss16)
3494 {
3495 if (offIoBitmap < cbTss)
3496 {
3497 uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3498 DBGCVAR VarAddr;
3499 DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3500 DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3501
3502 uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3503 uint32_t iStart = 0;
3504 bool fPrev = ASMBitTest(pbIoBitmap, 0);
3505 uint32_t cLine = 0;
3506 for (uint32_t i = 1; i < cPorts; i++)
3507 {
3508 bool fThis = ASMBitTest(pbIoBitmap, i);
3509 if (fThis != fPrev)
3510 {
3511 cLine++;
3512 DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3513 fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3514 fPrev = fThis;
3515 iStart = i;
3516 }
3517 }
3518 if (iStart != _64K-1)
3519 DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3520 }
3521 else if (offIoBitmap > 0)
3522 DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3523 else
3524 DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3525 }
3526
3527 return VINF_SUCCESS;
3528}
3529
3530
3531/**
3532 * The 'm' command.
3533 *
3534 * @returns VBox status.
3535 * @param pCmd Pointer to the command descriptor (as registered).
3536 * @param pCmdHlp Pointer to command helper functions.
3537 * @param pVM Pointer to the current VM (if any).
3538 * @param paArgs Pointer to (readonly) array of arguments.
3539 * @param cArgs Number of arguments in the array.
3540 */
3541static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
3542{
3543 DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3544 if (!pVM)
3545 return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
3546 return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pVM, paArgs, cArgs);
3547}
3548
3549
3550/**
3551 * Converts one or more variables into a byte buffer for a
3552 * given unit size.
3553 *
3554 * @returns VBox status codes:
3555 * @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3556 * @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3557 * @retval VINF_SUCCESS on success.
3558 *
3559 * @param pvBuf The buffer to convert into.
3560 * @param pcbBuf The buffer size on input. The size of the result on output.
3561 * @param cbUnit The unit size to apply when converting.
3562 * The high bit is used to indicate unicode string.
3563 * @param paVars The array of variables to convert.
3564 * @param cVars The number of variables.
3565 */
3566int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void *pvBuf, uint32_t *pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3567{
3568 union
3569 {
3570 uint8_t *pu8;
3571 uint16_t *pu16;
3572 uint32_t *pu32;
3573 uint64_t *pu64;
3574 } u, uEnd;
3575 u.pu8 = (uint8_t *)pvBuf;
3576 uEnd.pu8 = u.pu8 + *pcbBuf;
3577
3578 unsigned i;
3579 for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3580 {
3581 switch (paVars[i].enmType)
3582 {
3583 case DBGCVAR_TYPE_GC_FAR:
3584 case DBGCVAR_TYPE_GC_FLAT:
3585 case DBGCVAR_TYPE_GC_PHYS:
3586 case DBGCVAR_TYPE_HC_FLAT:
3587 case DBGCVAR_TYPE_HC_PHYS:
3588 case DBGCVAR_TYPE_NUMBER:
3589 {
3590 uint64_t u64 = paVars[i].u.u64Number;
3591 switch (cbUnit & 0x1f)
3592 {
3593 case 1:
3594 do
3595 {
3596 *u.pu8++ = u64;
3597 u64 >>= 8;
3598 } while (u64);
3599 break;
3600 case 2:
3601 do
3602 {
3603 *u.pu16++ = u64;
3604 u64 >>= 16;
3605 } while (u64);
3606 break;
3607 case 4:
3608 *u.pu32++ = u64;
3609 u64 >>= 32;
3610 if (u64)
3611 *u.pu32++ = u64;
3612 break;
3613 case 8:
3614 *u.pu64++ = u64;
3615 break;
3616 }
3617 break;
3618 }
3619
3620 case DBGCVAR_TYPE_STRING:
3621 case DBGCVAR_TYPE_SYMBOL:
3622 {
3623 const char *psz = paVars[i].u.pszString;
3624 size_t cbString = strlen(psz);
3625 if (cbUnit & RT_BIT_32(31))
3626 {
3627 /* Explode char to unit. */
3628 if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3629 {
3630 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3631 return VERR_TOO_MUCH_DATA;
3632 }
3633 while (*psz)
3634 {
3635 switch (cbUnit & 0x1f)
3636 {
3637 case 1: *u.pu8++ = *psz; break;
3638 case 2: *u.pu16++ = *psz; break;
3639 case 4: *u.pu32++ = *psz; break;
3640 case 8: *u.pu64++ = *psz; break;
3641 }
3642 psz++;
3643 }
3644 }
3645 else
3646 {
3647 /* Raw copy with zero padding if the size isn't aligned. */
3648 if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3649 {
3650 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3651 return VERR_TOO_MUCH_DATA;
3652 }
3653
3654 size_t cbCopy = cbString & ~(cbUnit - 1);
3655 memcpy(u.pu8, psz, cbCopy);
3656 u.pu8 += cbCopy;
3657 psz += cbCopy;
3658
3659 size_t cbReminder = cbString & (cbUnit - 1);
3660 if (cbReminder)
3661 {
3662 memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3663 memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3664 u.pu8 += cbUnit;
3665 }
3666 }
3667 break;
3668 }
3669
3670 default:
3671 *pcbBuf = u.pu8 - (uint8_t *)pvBuf;
3672 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3673 "i=%d enmType=%d\n", i, paVars[i].enmType);
3674 return VERR_INTERNAL_ERROR;
3675 }
3676 }
3677 *pcbBuf = u.pu8 - (uint8_t *)pvBuf;
3678 if (i != cVars)
3679 {
3680 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3681 return VERR_TOO_MUCH_DATA;
3682 }
3683 return VINF_SUCCESS;
3684}
3685
3686
3687/**
3688 * The 'eb', 'ew', 'ed' and 'eq' commands.
3689 *
3690 * @returns VBox status.
3691 * @param pCmd Pointer to the command descriptor (as registered).
3692 * @param pCmdHlp Pointer to command helper functions.
3693 * @param pVM Pointer to the current VM (if any).
3694 * @param paArgs Pointer to (readonly) array of arguments.
3695 * @param cArgs Number of arguments in the array.
3696 */
3697static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
3698{
3699 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3700 unsigned iArg;
3701
3702 /*
3703 * Validate input.
3704 */
3705 if ( cArgs < 2
3706 || !DBGCVAR_ISPOINTER(paArgs[0].enmType))
3707 return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet... It might help to use the '%%' operator.\n");
3708 for (iArg = 1; iArg < cArgs; iArg++)
3709 if (paArgs[iArg].enmType != DBGCVAR_TYPE_NUMBER)
3710 return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet: Arg #%u is not a number.\n", iArg);
3711 if (!pVM)
3712 return DBGCCmdHlpFail(pCmdHlp, pCmd, "error: No VM.\n");
3713
3714 /*
3715 * Figure out the element size.
3716 */
3717 unsigned cbElement;
3718 switch (pCmd->pszCmd[1])
3719 {
3720 default:
3721 case 'b': cbElement = 1; break;
3722 case 'w': cbElement = 2; break;
3723 case 'd': cbElement = 4; break;
3724 case 'q': cbElement = 8; break;
3725 }
3726
3727 /*
3728 * Do setting.
3729 */
3730 DBGCVAR Addr = paArgs[0];
3731 for (iArg = 1;;)
3732 {
3733 size_t cbWritten;
3734 int rc = pCmdHlp->pfnMemWrite(pCmdHlp, pVM, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3735 if (RT_FAILURE(rc))
3736 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3737 if (cbWritten != cbElement)
3738 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3739
3740 /* advance. */
3741 iArg++;
3742 if (iArg >= cArgs)
3743 break;
3744 rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3745 if (RT_FAILURE(rc))
3746 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3747 }
3748
3749 return VINF_SUCCESS;
3750}
3751
3752
3753/**
3754 * Executes the search.
3755 *
3756 * @returns VBox status code.
3757 * @param pCmdHlp The command helpers.
3758 * @param pVM The VM handle.
3759 * @param pAddress The address to start searching from. (undefined on output)
3760 * @param cbRange The address range to search. Must not wrap.
3761 * @param pabBytes The byte pattern to search for.
3762 * @param cbBytes The size of the pattern.
3763 * @param cbUnit The search unit.
3764 * @param cMaxHits The max number of hits.
3765 * @param pResult Where to store the result if it's a function invocation.
3766 */
3767static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3768 const uint8_t *pabBytes, uint32_t cbBytes,
3769 uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3770{
3771 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3772
3773 /*
3774 * Do the search.
3775 */
3776 uint64_t cHits = 0;
3777 for (;;)
3778 {
3779 /* search */
3780 DBGFADDRESS HitAddress;
3781 int rc = DBGFR3MemScan(pVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3782 if (RT_FAILURE(rc))
3783 {
3784 if (rc != VERR_DBGF_MEM_NOT_FOUND)
3785 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3786
3787 /* update the current address so we can save it (later). */
3788 pAddress->off += cbRange;
3789 pAddress->FlatPtr += cbRange;
3790 cbRange = 0;
3791 break;
3792 }
3793
3794 /* report result */
3795 DBGCVAR VarCur;
3796 rc = DBGCCmdHlpVarFromDbgfAddr(pCmdHlp, &HitAddress, &VarCur);
3797 if (RT_FAILURE(rc))
3798 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGCCmdHlpVarFromDbgfAddr\n");
3799 if (!pResult)
3800 pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3801 else
3802 DBGCVAR_ASSIGN(pResult, &VarCur);
3803
3804 /* advance */
3805 cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3806 *pAddress = HitAddress;
3807 pAddress->FlatPtr += cbBytes;
3808 pAddress->off += cbBytes;
3809 if (cbRange <= cbBytes)
3810 {
3811 cbRange = 0;
3812 break;
3813 }
3814 cbRange -= cbBytes;
3815
3816 if (++cHits >= cMaxHits)
3817 {
3818 /// @todo save the search.
3819 break;
3820 }
3821 }
3822
3823 /*
3824 * Save the search so we can resume it...
3825 */
3826 if (pDbgc->abSearch != pabBytes)
3827 {
3828 memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3829 pDbgc->cbSearch = cbBytes;
3830 pDbgc->cbSearchUnit = cbUnit;
3831 }
3832 pDbgc->cMaxSearchHits = cMaxHits;
3833 pDbgc->SearchAddr = *pAddress;
3834 pDbgc->cbSearchRange = cbRange;
3835
3836 return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3837}
3838
3839
3840/**
3841 * Resumes the previous search.
3842 *
3843 * @returns VBox status code.
3844 * @param pCmdHlp Pointer to the command helper functions.
3845 * @param pVM Pointer to the current VM (if any).
3846 * @param pResult Where to store the result of a function invocation.
3847 */
3848static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGCVAR pResult)
3849{
3850 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3851
3852 /*
3853 * Make sure there is a previous command.
3854 */
3855 if (!pDbgc->cbSearch)
3856 {
3857 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Error: No previous search\n");
3858 return VERR_DBGC_COMMAND_FAILED;
3859 }
3860
3861 /*
3862 * Make range and address adjustments.
3863 */
3864 DBGFADDRESS Address = pDbgc->SearchAddr;
3865 if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3866 {
3867 Address.FlatPtr -= Address.off;
3868 Address.off = 0;
3869 }
3870
3871 RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3872 if (!cbRange)
3873 cbRange = ~(RTGCUINTPTR)0;
3874 if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3875 cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3876
3877 return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3878 pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3879}
3880
3881
3882/**
3883 * Search memory, worker for the 's' and 's?' functions.
3884 *
3885 * @returns VBox status.
3886 * @param pCmdHlp Pointer to the command helper functions.
3887 * @param pVM Pointer to the current VM (if any).
3888 * @param pAddress Where to start searching. If no range, search till end of address space.
3889 * @param cMaxHits The maximum number of hits.
3890 * @param chType The search type.
3891 * @param paPatArgs The pattern variable array.
3892 * @param cPatArgs Number of pattern variables.
3893 * @param pResult Where to store the result of a function invocation.
3894 */
3895static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3896 PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3897{
3898 if (pResult)
3899 DBGCVAR_INIT_GC_FLAT(pResult, 0);
3900
3901 /*
3902 * Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3903 */
3904 uint32_t cbUnit;
3905 switch (chType)
3906 {
3907 case 'a':
3908 case 'b': cbUnit = 1; break;
3909 case 'u': cbUnit = 2 | RT_BIT_32(31); break;
3910 case 'w': cbUnit = 2; break;
3911 case 'd': cbUnit = 4; break;
3912 case 'q': cbUnit = 8; break;
3913 default:
3914 return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3915 }
3916 uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3917 uint32_t cbBytes = sizeof(abBytes);
3918 int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3919 if (RT_FAILURE(rc))
3920 return VERR_DBGC_COMMAND_FAILED;
3921
3922 /*
3923 * Make DBGF address and fix the range.
3924 */
3925 DBGFADDRESS Address;
3926 rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3927 if (RT_FAILURE(rc))
3928 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3929
3930 RTGCUINTPTR cbRange;
3931 switch (pAddress->enmRangeType)
3932 {
3933 case DBGCVAR_RANGE_BYTES:
3934 cbRange = pAddress->u64Range;
3935 if (cbRange != pAddress->u64Range)
3936 cbRange = ~(RTGCUINTPTR)0;
3937 break;
3938
3939 case DBGCVAR_RANGE_ELEMENTS:
3940 cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3941 if ( cbRange != pAddress->u64Range * cbUnit
3942 || cbRange < pAddress->u64Range)
3943 cbRange = ~(RTGCUINTPTR)0;
3944 break;
3945
3946 default:
3947 cbRange = ~(RTGCUINTPTR)0;
3948 break;
3949 }
3950 if (Address.FlatPtr + cbRange < Address.FlatPtr)
3951 cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3952
3953 /*
3954 * Ok, do it.
3955 */
3956 return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3957}
3958
3959
3960/**
3961 * The 's' command.
3962 *
3963 * @returns VBox status.
3964 * @param pCmd Pointer to the command descriptor (as registered).
3965 * @param pCmdHlp Pointer to command helper functions.
3966 * @param pVM Pointer to the current VM (if any).
3967 * @param paArgs Pointer to (readonly) array of arguments.
3968 * @param cArgs Number of arguments in the array.
3969 */
3970static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
3971{
3972 /* check that the parser did what it's supposed to do. */
3973 //if ( cArgs <= 2
3974 // && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3975 // return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
3976
3977 /*
3978 * Repeat previous search?
3979 */
3980 if (cArgs == 0)
3981 return dbgcCmdWorkerSearchMemResume(pCmdHlp, pVM, NULL);
3982
3983 /*
3984 * Parse arguments.
3985 */
3986
3987 return -1;
3988}
3989
3990
3991/**
3992 * The 's?' command.
3993 *
3994 * @returns VBox status.
3995 * @param pCmd Pointer to the command descriptor (as registered).
3996 * @param pCmdHlp Pointer to command helper functions.
3997 * @param pVM Pointer to the current VM (if any).
3998 * @param paArgs Pointer to (readonly) array of arguments.
3999 * @param cArgs Number of arguments in the array.
4000 */
4001static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
4002{
4003 /* check that the parser did what it's supposed to do. */
4004 if ( cArgs < 2
4005 || !DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
4006 return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
4007 return dbgcCmdWorkerSearchMem(pCmdHlp, pVM, &paArgs[0], 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, NULL);
4008}
4009
4010
4011/**
4012 * List near symbol.
4013 *
4014 * @returns VBox status code.
4015 * @param pCmdHlp Pointer to command helper functions.
4016 * @param pVM Pointer to the current VM (if any).
4017 * @param pArg Pointer to the address or symbol to lookup.
4018 */
4019static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pArg)
4020{
4021 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4022
4023 RTDBGSYMBOL Symbol;
4024 int rc;
4025 if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
4026 {
4027 /*
4028 * Lookup the symbol address.
4029 */
4030 rc = DBGFR3AsSymbolByName(pVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
4031 if (RT_FAILURE(rc))
4032 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
4033
4034 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%Rptr %s\n", Symbol.Value, Symbol.szName);
4035 }
4036 else
4037 {
4038 /*
4039 * Convert it to a flat GC address and lookup that address.
4040 */
4041 DBGCVAR AddrVar;
4042 rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
4043 if (RT_FAILURE(rc))
4044 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
4045
4046 RTINTPTR offDisp;
4047 DBGFADDRESS Addr;
4048 rc = DBGFR3AsSymbolByAddr(pVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pVM, &Addr, AddrVar.u.GCFlat), &offDisp, &Symbol, NULL);
4049 if (RT_FAILURE(rc))
4050 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
4051
4052 if (!offDisp)
4053 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s", &AddrVar, Symbol.szName);
4054 else if (offDisp > 0)
4055 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
4056 else
4057 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
4058 if ((RTGCINTPTR)Symbol.cb > -offDisp)
4059 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " LB %RGv\n", Symbol.cb + offDisp);
4060 else
4061 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
4062 }
4063
4064 return rc;
4065}
4066
4067
4068/**
4069 * The 'ln' (listnear) command.
4070 *
4071 * @returns VBox status.
4072 * @param pCmd Pointer to the command descriptor (as registered).
4073 * @param pCmdHlp Pointer to command helper functions.
4074 * @param pVM Pointer to the current VM (if any).
4075 * @param paArgs Pointer to (readonly) array of arguments.
4076 * @param cArgs Number of arguments in the array.
4077 */
4078static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
4079{
4080 if (!cArgs)
4081 {
4082 /*
4083 * Current cs:eip symbol.
4084 */
4085 DBGCVAR AddrVar;
4086 int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(cs:eip)");
4087 if (RT_FAILURE(rc))
4088 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(cs:eip)\n");
4089 return dbgcDoListNear(pCmdHlp, pVM, &AddrVar);
4090 }
4091
4092/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
4093 /*
4094 * Iterate arguments.
4095 */
4096 for (unsigned iArg = 0; iArg < cArgs; iArg++)
4097 {
4098 int rc = dbgcDoListNear(pCmdHlp, pVM, &paArgs[iArg]);
4099 if (RT_FAILURE(rc))
4100 return rc;
4101 }
4102
4103 NOREF(pCmd);
4104 return VINF_SUCCESS;
4105}
4106
4107
4108/**
4109 * Matches the module patters against a module name.
4110 *
4111 * @returns true if matching, otherwise false.
4112 * @param pszName The module name.
4113 * @param paArgs The module pattern argument list.
4114 * @param cArgs Number of arguments.
4115 */
4116static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
4117{
4118 for (uint32_t i = 0; i < cArgs; i++)
4119 if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
4120 return true;
4121 return false;
4122}
4123
4124
4125/**
4126 * The 'ln' (listnear) command.
4127 *
4128 * @returns VBox status.
4129 * @param pCmd Pointer to the command descriptor (as registered).
4130 * @param pCmdHlp Pointer to command helper functions.
4131 * @param pVM Pointer to the current VM (if any).
4132 * @param paArgs Pointer to (readonly) array of arguments.
4133 * @param cArgs Number of arguments in the array.
4134 */
4135static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs)
4136{
4137 bool const fMappings = pCmd->pszCmd[2] == 'o';
4138 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4139
4140 /*
4141 * Iterate the modules in the current address space and print info about
4142 * those matching the input.
4143 */
4144 RTDBGAS hAs = DBGFR3AsResolveAndRetain(pVM, pDbgc->hDbgAs);
4145 uint32_t cMods = RTDbgAsModuleCount(hAs);
4146 for (uint32_t iMod = 0; iMod < cMods; iMod++)
4147 {
4148 RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
4149 if (hMod != NIL_RTDBGMOD)
4150 {
4151 uint32_t const cSegs = RTDbgModSegmentCount(hMod);
4152 const char * const pszName = RTDbgModName(hMod);
4153 if ( cArgs == 0
4154 || dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
4155 {
4156 /*
4157 * Find the mapping with the lower address, preferring a full
4158 * image mapping, for the main line.
4159 */
4160 RTDBGASMAPINFO aMappings[128];
4161 uint32_t cMappings = RT_ELEMENTS(aMappings);
4162 int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /*fFlags*/);
4163 if (RT_SUCCESS(rc))
4164 {
4165 bool fFull = false;
4166 RTUINTPTR uMin = RTUINTPTR_MAX;
4167 for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4168 if ( aMappings[iMap].Address < uMin
4169 && ( !fFull
4170 || aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4171 uMin = aMappings[iMap].Address;
4172 DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s\n", (RTGCUINTPTR)uMin, cSegs, pszName);
4173
4174 if (fMappings)
4175 {
4176 /* sort by address first - not very efficient. */
4177 for (uint32_t i = 0; i + 1 < cMappings; i++)
4178 for (uint32_t j = i + 1; j < cMappings; j++)
4179 if (aMappings[j].Address < aMappings[i].Address)
4180 {
4181 RTDBGASMAPINFO Tmp = aMappings[j];
4182 aMappings[j] = aMappings[i];
4183 aMappings[i] = Tmp;
4184 }
4185
4186 /* print */
4187 for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4188 if (aMappings[iMap].iSeg != NIL_RTDBGSEGIDX)
4189 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4190 (RTGCUINTPTR)aMappings[iMap].Address,
4191 (RTGCUINTPTR)RTDbgModSegmentSize(hMod, aMappings[iMap].iSeg),
4192 aMappings[iMap].iSeg,
4193 /** @todo RTDbgModSegmentName(hMod, aMappings[iMap].iSeg)*/ "noname");
4194 else
4195 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4196 (RTGCUINTPTR)aMappings[iMap].Address,
4197 (RTGCUINTPTR)RTDbgModImageSize(hMod));
4198 }
4199 }
4200 else
4201 DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4202 sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4203 /** @todo missing address space API for enumerating the mappings. */
4204 }
4205 RTDbgModRelease(hMod);
4206 }
4207 }
4208 RTDbgAsRelease(hAs);
4209
4210 NOREF(pCmd);
4211 return VINF_SUCCESS;
4212}
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