VirtualBox

source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 47569

Last change on this file since 47569 was 47569, checked in by vboxsync, 11 years ago

DBGC: v86 disassembly fixes and tweaks.

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1/* $Id: DBGCEmulateCodeView.cpp 47569 2013-08-07 03:13:21Z vboxsync $ */
2/** @file
3 * DBGC - Debugger Console, CodeView / WinDbg Emulation.
4 */
5
6/*
7 * Copyright (C) 2006-2013 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 FNDBGCCMD dbgcCmdBrkAccess;
47static FNDBGCCMD dbgcCmdBrkClear;
48static FNDBGCCMD dbgcCmdBrkDisable;
49static FNDBGCCMD dbgcCmdBrkEnable;
50static FNDBGCCMD dbgcCmdBrkList;
51static FNDBGCCMD dbgcCmdBrkSet;
52static FNDBGCCMD dbgcCmdBrkREM;
53static FNDBGCCMD dbgcCmdDumpMem;
54static FNDBGCCMD dbgcCmdDumpDT;
55static FNDBGCCMD dbgcCmdDumpIDT;
56static FNDBGCCMD dbgcCmdDumpPageDir;
57static FNDBGCCMD dbgcCmdDumpPageDirBoth;
58static FNDBGCCMD dbgcCmdDumpPageHierarchy;
59static FNDBGCCMD dbgcCmdDumpPageTable;
60static FNDBGCCMD dbgcCmdDumpPageTableBoth;
61static FNDBGCCMD dbgcCmdDumpTSS;
62static FNDBGCCMD dbgcCmdEditMem;
63static FNDBGCCMD dbgcCmdGo;
64static FNDBGCCMD dbgcCmdListModules;
65static FNDBGCCMD dbgcCmdListNear;
66static FNDBGCCMD dbgcCmdListSource;
67static FNDBGCCMD dbgcCmdMemoryInfo;
68static FNDBGCCMD dbgcCmdReg;
69static FNDBGCCMD dbgcCmdRegGuest;
70static FNDBGCCMD dbgcCmdRegHyper;
71static FNDBGCCMD dbgcCmdRegTerse;
72static FNDBGCCMD dbgcCmdSearchMem;
73static FNDBGCCMD dbgcCmdSearchMemType;
74static FNDBGCCMD dbgcCmdStack;
75static FNDBGCCMD dbgcCmdTrace;
76static FNDBGCCMD dbgcCmdUnassemble;
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, ~0U, 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, ~0U, DBGCVAR_CAT_NUMBER, 0, "sel", "Selector or selector range." },
139 { 0, ~0U, 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, ~0U, 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, ~0U, 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, ~0U, 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, ~0U, DBGCVAR_CAT_POINTER, 0, "address", "Address of the symbol to look up." },
225 { 0, ~0U, 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, ~0U, 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, ~0U, 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, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkClear, "all | <bp#> [bp# []]", "Deletes a set of breakpoints." },
296 { "bd", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkDisable, "all | <bp#> [bp# []]", "Disables a set of breakpoints." },
297 { "be", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkEnable, "all | <bp#> [bp# []]", "Enables 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, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT)." },
309 { "dga", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT) including not-present entries." },
310 { "di", 0, ~0U, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT)." },
311 { "dia", 0, ~0U, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT) including not-present entries." },
312 { "dl", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT)." },
313 { "dla", 0, ~0U, &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 memory at given address as a page directory." },
316 { "dpdb", 0, 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 memory at given address as a 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, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules." },
344 { "lmv", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules, verbose." },
345 { "lmo", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments." },
346 { "lmov", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments, verbose." },
347 { "ln", 0, ~0U, &g_aArgListNear[0], RT_ELEMENTS(g_aArgListNear), 0, dbgcCmdListNear, "[addr/sym [..]]", "List symbols near to the address. Default address is CS:EIP." },
348 { "ls", 0, 1, &g_aArgListSource[0],RT_ELEMENTS(g_aArgListSource), 0, dbgcCmdListSource, "[addr]", "Source." },
349 { "m", 1, 1, &g_aArgMemoryInfo[0],RT_ELEMENTS(g_aArgMemoryInfo), 0, dbgcCmdMemoryInfo, "<addr>", "Display information about that piece of memory." },
350 { "r", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdReg, "[reg [newval]]", "Show or set register(s) - active reg set." },
351 { "rg", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegGuest, "[reg [newval]]", "Show or set register(s) - guest reg set." },
352 { "rg32", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 32-bit guest registers." },
353 { "rg64", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 64-bit guest registers." },
354 { "rh", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegHyper, "[reg [newval]]", "Show or set register(s) - hypervisor reg set." },
355 { "rt", 0, 0, NULL, 0, 0, dbgcCmdRegTerse, "", "Toggles terse / verbose register info." },
356 { "s", 0, ~0U, &g_aArgSearchMem[0], RT_ELEMENTS(g_aArgSearchMem), 0, dbgcCmdSearchMem, "[options] <range> <pattern>", "Continue last search." },
357 { "sa", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an ascii string." },
358 { "sb", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more bytes." },
359 { "sd", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more double words." },
360 { "sq", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more quad words." },
361 { "su", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an unicode string." },
362 { "sw", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more words." },
363 { "t", 0, 0, NULL, 0, 0, dbgcCmdTrace, "", "Instruction trace (step into)." },
364 { "u", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble." },
365 { "u64", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 64-bit code." },
366 { "u32", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 32-bit code." },
367 { "u16", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code." },
368 { "uv86", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code with v8086/real mode addressing." },
369};
370
371/** The number of commands in the CodeView/WinDbg emulation. */
372const uint32_t g_cCmdsCodeView = RT_ELEMENTS(g_aCmdsCodeView);
373
374
375
376
377/**
378 * @interface_method_impl{FNDBCCMD, The 'go' command.}
379 */
380static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
381{
382 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
383
384 /*
385 * Check if the VM is halted or not before trying to resume it.
386 */
387 if (!DBGFR3IsHalted(pUVM))
388 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The VM is already running");
389
390 int rc = DBGFR3Resume(pUVM);
391 if (RT_FAILURE(rc))
392 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3Resume");
393
394 NOREF(paArgs); NOREF(cArgs);
395 return VINF_SUCCESS;
396}
397
398
399/**
400 * @interface_method_impl{FNDBCCMD, The 'ba' command.}
401 */
402static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
403{
404 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
405
406 /*
407 * Interpret access type.
408 */
409 if ( !strchr("xrwi", paArgs[0].u.pszString[0])
410 || paArgs[0].u.pszString[1])
411 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access type '%s' for '%s'. Valid types are 'e', 'r', 'w' and 'i'",
412 paArgs[0].u.pszString, pCmd->pszCmd);
413 uint8_t fType = 0;
414 switch (paArgs[0].u.pszString[0])
415 {
416 case 'x': fType = X86_DR7_RW_EO; break;
417 case 'r': fType = X86_DR7_RW_RW; break;
418 case 'w': fType = X86_DR7_RW_WO; break;
419 case 'i': fType = X86_DR7_RW_IO; break;
420 }
421
422 /*
423 * Validate size.
424 */
425 if (fType == X86_DR7_RW_EO && paArgs[1].u.u64Number != 1)
426 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 'x' access type requires size 1!",
427 paArgs[1].u.u64Number, pCmd->pszCmd);
428 switch (paArgs[1].u.u64Number)
429 {
430 case 1:
431 case 2:
432 case 4:
433 break;
434 /*case 8: - later*/
435 default:
436 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 1, 2 or 4!",
437 paArgs[1].u.u64Number, pCmd->pszCmd);
438 }
439 uint8_t cb = (uint8_t)paArgs[1].u.u64Number;
440
441 /*
442 * Convert the pointer to a DBGF address.
443 */
444 DBGFADDRESS Address;
445 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[2], &Address);
446 if (RT_FAILURE(rc))
447 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%DV,)", &paArgs[2]);
448
449 /*
450 * Pick out the optional arguments.
451 */
452 uint64_t iHitTrigger = 0;
453 uint64_t iHitDisable = ~0;
454 const char *pszCmds = NULL;
455 unsigned iArg = 3;
456 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
457 {
458 iHitTrigger = paArgs[iArg].u.u64Number;
459 iArg++;
460 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
461 {
462 iHitDisable = paArgs[iArg].u.u64Number;
463 iArg++;
464 }
465 }
466 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
467 {
468 pszCmds = paArgs[iArg].u.pszString;
469 iArg++;
470 }
471
472 /*
473 * Try set the breakpoint.
474 */
475 uint32_t iBp;
476 rc = DBGFR3BpSetReg(pUVM, &Address, iHitTrigger, iHitDisable, fType, cb, &iBp);
477 if (RT_SUCCESS(rc))
478 {
479 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
480 rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
481 if (RT_SUCCESS(rc))
482 return DBGCCmdHlpPrintf(pCmdHlp, "Set access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
483 if (rc == VERR_DBGC_BP_EXISTS)
484 {
485 rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
486 if (RT_SUCCESS(rc))
487 return DBGCCmdHlpPrintf(pCmdHlp, "Updated access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
488 }
489 int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
490 AssertRC(rc2);
491 }
492 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set access breakpoint at %RGv", Address.FlatPtr);
493}
494
495
496/**
497 * @interface_method_impl{FNDBCCMD, The 'bc' command.}
498 */
499static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
500{
501 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
502
503 /*
504 * Enumerate the arguments.
505 */
506 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
507 int rc = VINF_SUCCESS;
508 for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
509 {
510 if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
511 {
512 /* one */
513 uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
514 if (iBp == paArgs[iArg].u.u64Number)
515 {
516 int rc2 = DBGFR3BpClear(pUVM, iBp);
517 if (RT_FAILURE(rc2))
518 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
519 if (RT_SUCCESS(rc2) || rc2 == VERR_DBGF_BP_NOT_FOUND)
520 dbgcBpDelete(pDbgc, iBp);
521 }
522 else
523 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
524 }
525 else if (!strcmp(paArgs[iArg].u.pszString, "all"))
526 {
527 /* all */
528 PDBGCBP pBp = pDbgc->pFirstBp;
529 while (pBp)
530 {
531 uint32_t iBp = pBp->iBp;
532 pBp = pBp->pNext;
533
534 int rc2 = DBGFR3BpClear(pUVM, 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 }
541 else
542 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
543 }
544 return rc;
545}
546
547
548/**
549 * @interface_method_impl{FNDBCCMD, The 'bd' command.}
550 */
551static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
552{
553 /*
554 * Enumerate the arguments.
555 */
556 int rc = VINF_SUCCESS;
557 for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
558 {
559 if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
560 {
561 /* one */
562 uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
563 if (iBp == paArgs[iArg].u.u64Number)
564 {
565 rc = DBGFR3BpDisable(pUVM, iBp);
566 if (RT_FAILURE(rc))
567 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpDisable failed for breakpoint %#x", iBp);
568 }
569 else
570 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
571 }
572 else if (!strcmp(paArgs[iArg].u.pszString, "all"))
573 {
574 /* all */
575 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
576 for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
577 {
578 int rc2 = DBGFR3BpDisable(pUVM, pBp->iBp);
579 if (RT_FAILURE(rc2))
580 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpDisable failed for breakpoint %#x", pBp->iBp);
581 }
582 }
583 else
584 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
585 }
586 return rc;
587}
588
589
590/**
591 * @interface_method_impl{FNDBCCMD, The 'be' command.}
592 */
593static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
594{
595 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
596
597 /*
598 * Enumerate the arguments.
599 */
600 int rc = VINF_SUCCESS;
601 for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
602 {
603 if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
604 {
605 /* one */
606 uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
607 if (iBp == paArgs[iArg].u.u64Number)
608 {
609 rc = DBGFR3BpEnable(pUVM, iBp);
610 if (RT_FAILURE(rc))
611 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnable failed for breakpoint %#x", iBp);
612 }
613 else
614 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
615 }
616 else if (!strcmp(paArgs[iArg].u.pszString, "all"))
617 {
618 /* all */
619 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
620 for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
621 {
622 int rc2 = DBGFR3BpEnable(pUVM, pBp->iBp);
623 if (RT_FAILURE(rc2))
624 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpEnable failed for breakpoint %#x", pBp->iBp);
625 }
626 }
627 else
628 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
629 }
630 return rc;
631}
632
633
634/**
635 * Breakpoint enumeration callback function.
636 *
637 * @returns VBox status code. Any failure will stop the enumeration.
638 * @param pUVM The user mode VM handle.
639 * @param pvUser The user argument.
640 * @param pBp Pointer to the breakpoint information. (readonly)
641 */
642static DECLCALLBACK(int) dbgcEnumBreakpointsCallback(PUVM pUVM, void *pvUser, PCDBGFBP pBp)
643{
644 PDBGC pDbgc = (PDBGC)pvUser;
645 PDBGCBP pDbgcBp = dbgcBpGet(pDbgc, pBp->iBp);
646
647 /*
648 * BP type and size.
649 */
650 char chType;
651 char cb = 1;
652 switch (pBp->enmType)
653 {
654 case DBGFBPTYPE_INT3:
655 chType = 'p';
656 break;
657 case DBGFBPTYPE_REG:
658 switch (pBp->u.Reg.fType)
659 {
660 case X86_DR7_RW_EO: chType = 'x'; break;
661 case X86_DR7_RW_WO: chType = 'w'; break;
662 case X86_DR7_RW_IO: chType = 'i'; break;
663 case X86_DR7_RW_RW: chType = 'r'; break;
664 default: chType = '?'; break;
665
666 }
667 cb = pBp->u.Reg.cb;
668 break;
669 case DBGFBPTYPE_REM:
670 chType = 'r';
671 break;
672 default:
673 chType = '?';
674 break;
675 }
676
677 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%#4x %c %d %c %RGv %04RX64 (%04RX64 to ",
678 pBp->iBp, pBp->fEnabled ? 'e' : 'd', (int)cb, chType,
679 pBp->GCPtr, pBp->cHits, pBp->iHitTrigger);
680 if (pBp->iHitDisable == ~(uint64_t)0)
681 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "~0) ");
682 else
683 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%04RX64)", pBp->iHitDisable);
684
685 /*
686 * Try resolve the address.
687 */
688 RTDBGSYMBOL Sym;
689 RTINTPTR off;
690 DBGFADDRESS Addr;
691 int rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, pBp->GCPtr),
692 RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &off, &Sym, NULL);
693 if (RT_SUCCESS(rc))
694 {
695 if (!off)
696 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s", Sym.szName);
697 else if (off > 0)
698 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s+%RGv", Sym.szName, off);
699 else
700 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s-%RGv", Sym.szName, -off);
701 }
702
703 /*
704 * The commands.
705 */
706 if (pDbgcBp)
707 {
708 if (pDbgcBp->cchCmd)
709 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n cmds: '%s'\n", pDbgcBp->szCmd);
710 else
711 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n");
712 }
713 else
714 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " [unknown bp]\n");
715
716 return VINF_SUCCESS;
717}
718
719
720/**
721 * @interface_method_impl{FNDBCCMD, The 'bl' command.}
722 */
723static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
724{
725 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
726 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs == 0);
727 NOREF(paArgs);
728
729 /*
730 * Enumerate the breakpoints.
731 */
732 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
733 int rc = DBGFR3BpEnum(pUVM, dbgcEnumBreakpointsCallback, pDbgc);
734 if (RT_FAILURE(rc))
735 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnum");
736 return rc;
737}
738
739
740/**
741 * @interface_method_impl{FNDBCCMD, The 'bp' command.}
742 */
743static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
744{
745 /*
746 * Convert the pointer to a DBGF address.
747 */
748 DBGFADDRESS Address;
749 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
750 if (RT_FAILURE(rc))
751 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
752
753 /*
754 * Pick out the optional arguments.
755 */
756 uint64_t iHitTrigger = 0;
757 uint64_t iHitDisable = ~0;
758 const char *pszCmds = NULL;
759 unsigned iArg = 1;
760 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
761 {
762 iHitTrigger = paArgs[iArg].u.u64Number;
763 iArg++;
764 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
765 {
766 iHitDisable = paArgs[iArg].u.u64Number;
767 iArg++;
768 }
769 }
770 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
771 {
772 pszCmds = paArgs[iArg].u.pszString;
773 iArg++;
774 }
775
776 /*
777 * Try set the breakpoint.
778 */
779 uint32_t iBp;
780 rc = DBGFR3BpSet(pUVM, &Address, iHitTrigger, iHitDisable, &iBp);
781 if (RT_SUCCESS(rc))
782 {
783 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
784 rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
785 if (RT_SUCCESS(rc))
786 return DBGCCmdHlpPrintf(pCmdHlp, "Set breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
787 if (rc == VERR_DBGC_BP_EXISTS)
788 {
789 rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
790 if (RT_SUCCESS(rc))
791 return DBGCCmdHlpPrintf(pCmdHlp, "Updated breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
792 }
793 int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
794 AssertRC(rc2);
795 }
796 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set breakpoint at %RGv", Address.FlatPtr);
797}
798
799
800/**
801 * @interface_method_impl{FNDBCCMD, The 'br' command.}
802 */
803static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
804{
805 /*
806 * Convert the pointer to a DBGF address.
807 */
808 DBGFADDRESS Address;
809 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
810 if (RT_FAILURE(rc))
811 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
812
813 /*
814 * Pick out the optional arguments.
815 */
816 uint64_t iHitTrigger = 0;
817 uint64_t iHitDisable = ~0;
818 const char *pszCmds = NULL;
819 unsigned iArg = 1;
820 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
821 {
822 iHitTrigger = paArgs[iArg].u.u64Number;
823 iArg++;
824 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
825 {
826 iHitDisable = paArgs[iArg].u.u64Number;
827 iArg++;
828 }
829 }
830 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
831 {
832 pszCmds = paArgs[iArg].u.pszString;
833 iArg++;
834 }
835
836 /*
837 * Try set the breakpoint.
838 */
839 uint32_t iBp;
840 rc = DBGFR3BpSetREM(pUVM, &Address, iHitTrigger, iHitDisable, &iBp);
841 if (RT_SUCCESS(rc))
842 {
843 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
844 rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
845 if (RT_SUCCESS(rc))
846 return DBGCCmdHlpPrintf(pCmdHlp, "Set REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
847 if (rc == VERR_DBGC_BP_EXISTS)
848 {
849 rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
850 if (RT_SUCCESS(rc))
851 return DBGCCmdHlpPrintf(pCmdHlp, "Updated REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
852 }
853 int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
854 AssertRC(rc2);
855 }
856 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set REM breakpoint at %RGv", Address.FlatPtr);
857}
858
859
860/**
861 * Helps the unassmble ('u') command display symbols it starts at and passes.
862 *
863 * @param pUVM The user mode VM handle.
864 * @param pCmdHlp The command helpers for printing via.
865 * @param hDbgAs The address space to look up addresses in.
866 * @param pAddress The current address.
867 * @param pcbCallAgain Where to return the distance to the next check (in
868 * instruction bytes).
869 */
870static void dbgcCmdUnassambleHelpListNear(PUVM pUVM, PDBGCCMDHLP pCmdHlp, RTDBGAS hDbgAs, PCDBGFADDRESS pAddress,
871 PRTUINTPTR pcbCallAgain)
872{
873 RTDBGSYMBOL Symbol;
874 RTGCINTPTR offDispSym;
875 int rc = DBGFR3AsSymbolByAddr(pUVM, hDbgAs, pAddress, RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &offDispSym, &Symbol, NULL);
876 if (RT_FAILURE(rc) || offDispSym > _1G)
877 rc = DBGFR3AsSymbolByAddr(pUVM, hDbgAs, pAddress, RTDBGSYMADDR_FLAGS_GREATER_OR_EQUAL, &offDispSym, &Symbol, NULL);
878 if (RT_SUCCESS(rc) && offDispSym < _1G)
879 {
880 if (!offDispSym)
881 {
882 DBGCCmdHlpPrintf(pCmdHlp, "%s:\n", Symbol.szName);
883 *pcbCallAgain = Symbol.cb;
884 }
885 else if (offDispSym > 0)
886 {
887 DBGCCmdHlpPrintf(pCmdHlp, "%s+%#llx:\n", Symbol.szName, (uint64_t)offDispSym);
888 *pcbCallAgain = Symbol.cb > (RTGCUINTPTR)offDispSym ? Symbol.cb - (RTGCUINTPTR)offDispSym : 1;
889 }
890 else
891 {
892 DBGCCmdHlpPrintf(pCmdHlp, "%s-%#llx:\n", Symbol.szName, (uint64_t)-offDispSym);
893 *pcbCallAgain = (RTGCUINTPTR)-offDispSym + Symbol.cb;
894 }
895 }
896 else
897 *pcbCallAgain = UINT32_MAX;
898}
899
900
901/**
902 * @interface_method_impl{FNDBCCMD, The 'u' command.}
903 */
904static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
905{
906 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
907
908 /*
909 * Validate input.
910 */
911 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
912 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs <= 1);
913 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 0 || DBGCVAR_ISPOINTER(paArgs[0].enmType));
914
915 if (!cArgs && !DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
916 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start disassembling");
917
918 /*
919 * Check the desired mode.
920 */
921 unsigned fFlags = DBGF_DISAS_FLAGS_NO_ADDRESS | DBGF_DISAS_FLAGS_UNPATCHED_BYTES | DBGF_DISAS_FLAGS_ANNOTATE_PATCHED;
922 switch (pCmd->pszCmd[1])
923 {
924 default: AssertFailed();
925 case '\0': fFlags |= DBGF_DISAS_FLAGS_DEFAULT_MODE; break;
926 case '6': fFlags |= DBGF_DISAS_FLAGS_64BIT_MODE; break;
927 case '3': fFlags |= DBGF_DISAS_FLAGS_32BIT_MODE; break;
928 case '1': fFlags |= DBGF_DISAS_FLAGS_16BIT_MODE; break;
929 case 'v': fFlags |= DBGF_DISAS_FLAGS_16BIT_REAL_MODE; break;
930 }
931
932 /** @todo should use DBGFADDRESS for everything */
933
934 /*
935 * Find address.
936 */
937 if (!cArgs)
938 {
939 if (!DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
940 {
941 /** @todo Batch query CS, RIP, CPU mode and flags. */
942 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
943 if ( pDbgc->fRegCtxGuest
944 && CPUMIsGuestIn64BitCode(pVCpu))
945 {
946 pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FLAT;
947 pDbgc->SourcePos.u.GCFlat = CPUMGetGuestRIP(pVCpu);
948 }
949 else
950 {
951 pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FAR;
952 pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
953 pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
954 if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_DEFAULT_MODE
955 && pDbgc->fRegCtxGuest
956 && (CPUMGetGuestEFlags(pVCpu) & X86_EFL_VM))
957 {
958 fFlags &= ~DBGF_DISAS_FLAGS_MODE_MASK;
959 fFlags |= DBGF_DISAS_FLAGS_16BIT_REAL_MODE;
960 }
961 }
962
963 if (pDbgc->fRegCtxGuest)
964 fFlags |= DBGF_DISAS_FLAGS_CURRENT_GUEST;
965 else
966 fFlags |= DBGF_DISAS_FLAGS_CURRENT_HYPER | DBGF_DISAS_FLAGS_HYPER;
967 }
968 else if ((fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_DEFAULT_MODE && pDbgc->fDisasm)
969 {
970 fFlags &= ~DBGF_DISAS_FLAGS_MODE_MASK;
971 fFlags |= pDbgc->fDisasm & (DBGF_DISAS_FLAGS_MODE_MASK | DBGF_DISAS_FLAGS_HYPER);
972 }
973 pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
974 }
975 else
976 pDbgc->DisasmPos = paArgs[0];
977 pDbgc->pLastPos = &pDbgc->DisasmPos;
978
979 /*
980 * Range.
981 */
982 switch (pDbgc->DisasmPos.enmRangeType)
983 {
984 case DBGCVAR_RANGE_NONE:
985 pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
986 pDbgc->DisasmPos.u64Range = 10;
987 break;
988
989 case DBGCVAR_RANGE_ELEMENTS:
990 if (pDbgc->DisasmPos.u64Range > 2048)
991 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Too many lines requested. Max is 2048 lines");
992 break;
993
994 case DBGCVAR_RANGE_BYTES:
995 if (pDbgc->DisasmPos.u64Range > 65536)
996 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The requested range is too big. Max is 64KB");
997 break;
998
999 default:
1000 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown range type %d", pDbgc->DisasmPos.enmRangeType);
1001 }
1002
1003 /*
1004 * Convert physical and host addresses to guest addresses.
1005 */
1006 RTDBGAS hDbgAs = pDbgc->hDbgAs;
1007 int rc;
1008 switch (pDbgc->DisasmPos.enmType)
1009 {
1010 case DBGCVAR_TYPE_GC_FLAT:
1011 case DBGCVAR_TYPE_GC_FAR:
1012 break;
1013 case DBGCVAR_TYPE_GC_PHYS:
1014 hDbgAs = DBGF_AS_PHYS;
1015 case DBGCVAR_TYPE_HC_FLAT:
1016 case DBGCVAR_TYPE_HC_PHYS:
1017 {
1018 DBGCVAR VarTmp;
1019 rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1020 if (RT_FAILURE(rc))
1021 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "failed to evaluate '%%(%Dv)'", &pDbgc->DisasmPos);
1022 pDbgc->DisasmPos = VarTmp;
1023 break;
1024 }
1025 default: AssertFailed(); break;
1026 }
1027
1028 DBGFADDRESS CurAddr;
1029 if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_16BIT_REAL_MODE
1030 && pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FAR)
1031 DBGFR3AddrFromFlat(pUVM, &CurAddr, ((uint32_t)pDbgc->DisasmPos.u.GCFar.sel << 4) + pDbgc->DisasmPos.u.GCFar.off);
1032 else
1033 {
1034 rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1035 if (RT_FAILURE(rc))
1036 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr failed on '%Dv'", &pDbgc->DisasmPos);
1037 }
1038
1039 if (CurAddr.fFlags & DBGFADDRESS_FLAGS_HMA)
1040 fFlags |= DBGF_DISAS_FLAGS_HYPER; /* This crap is due to not using DBGFADDRESS as DBGFR3Disas* input. */
1041 pDbgc->fDisasm = fFlags;
1042
1043 /*
1044 * Figure out where we are and display it. Also calculate when we need to
1045 * check for a new symbol if possible.
1046 */
1047 RTGCUINTPTR cbCheckSymbol;
1048 dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1049
1050 /*
1051 * Do the disassembling.
1052 */
1053 unsigned cTries = 32;
1054 int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1055 if (iRangeLeft == 0) /* kludge for 'r'. */
1056 iRangeLeft = -1;
1057 for (;;)
1058 {
1059 /*
1060 * Disassemble the instruction.
1061 */
1062 char szDis[256];
1063 uint32_t cbInstr = 1;
1064 if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1065 rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1066 &szDis[0], sizeof(szDis), &cbInstr);
1067 else
1068 rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1069 &szDis[0], sizeof(szDis), &cbInstr);
1070 if (RT_SUCCESS(rc))
1071 {
1072 /* print it */
1073 rc = DBGCCmdHlpPrintf(pCmdHlp, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1074 if (RT_FAILURE(rc))
1075 return rc;
1076 }
1077 else
1078 {
1079 /* bitch. */
1080 int rc2 = DBGCCmdHlpPrintf(pCmdHlp, "Failed to disassemble instruction, skipping one byte.\n");
1081 if (RT_FAILURE(rc2))
1082 return rc2;
1083 if (cTries-- > 0)
1084 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Too many disassembly failures. Giving up");
1085 cbInstr = 1;
1086 }
1087
1088 /* advance */
1089 if (iRangeLeft < 0) /* 'r' */
1090 break;
1091 if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1092 iRangeLeft--;
1093 else
1094 iRangeLeft -= cbInstr;
1095 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1096 if (RT_FAILURE(rc))
1097 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpEval(,,'(%Dv) + %x')", &pDbgc->DisasmPos, cbInstr);
1098 if (iRangeLeft <= 0)
1099 break;
1100 fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST | DBGF_DISAS_FLAGS_CURRENT_HYPER);
1101
1102 /* Print next symbol? */
1103 if (cbCheckSymbol <= cbInstr)
1104 {
1105 if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_16BIT_REAL_MODE
1106 && pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FAR)
1107 DBGFR3AddrFromFlat(pUVM, &CurAddr, ((uint32_t)pDbgc->DisasmPos.u.GCFar.sel << 4) + pDbgc->DisasmPos.u.GCFar.off);
1108 else
1109 rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1110 if (RT_SUCCESS(rc))
1111 dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1112 else
1113 cbCheckSymbol = UINT32_MAX;
1114 }
1115 else
1116 cbCheckSymbol -= cbInstr;
1117 }
1118
1119 NOREF(pCmd);
1120 return VINF_SUCCESS;
1121}
1122
1123
1124/**
1125 * @interface_method_impl{FNDBCCMD, The 'ls' command.}
1126 */
1127static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1128{
1129 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1130
1131 /*
1132 * Validate input.
1133 */
1134 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
1135 if (cArgs == 1)
1136 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
1137 if (!pUVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1138 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start listing...");
1139 if (!pUVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1140 return DBGCCmdHlpFail(pCmdHlp, pCmd, "GC address but no VM");
1141
1142 /*
1143 * Find address.
1144 */
1145 if (!cArgs)
1146 {
1147 if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1148 {
1149 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1150 pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1151 pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1152 pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1153 }
1154 pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1155 }
1156 else
1157 pDbgc->SourcePos = paArgs[0];
1158 pDbgc->pLastPos = &pDbgc->SourcePos;
1159
1160 /*
1161 * Ensure the source address is flat GC.
1162 */
1163 switch (pDbgc->SourcePos.enmType)
1164 {
1165 case DBGCVAR_TYPE_GC_FLAT:
1166 break;
1167 case DBGCVAR_TYPE_GC_PHYS:
1168 case DBGCVAR_TYPE_GC_FAR:
1169 case DBGCVAR_TYPE_HC_FLAT:
1170 case DBGCVAR_TYPE_HC_PHYS:
1171 {
1172 int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1173 if (RT_FAILURE(rc))
1174 return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid address or address type. (rc=%d)\n", rc);
1175 break;
1176 }
1177 default: AssertFailed(); break;
1178 }
1179
1180 /*
1181 * Range.
1182 */
1183 switch (pDbgc->SourcePos.enmRangeType)
1184 {
1185 case DBGCVAR_RANGE_NONE:
1186 pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1187 pDbgc->SourcePos.u64Range = 10;
1188 break;
1189
1190 case DBGCVAR_RANGE_ELEMENTS:
1191 if (pDbgc->SourcePos.u64Range > 2048)
1192 return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many lines requested. Max is 2048 lines.\n");
1193 break;
1194
1195 case DBGCVAR_RANGE_BYTES:
1196 if (pDbgc->SourcePos.u64Range > 65536)
1197 return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
1198 break;
1199
1200 default:
1201 return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1202 }
1203
1204 /*
1205 * Do the disassembling.
1206 */
1207 bool fFirst = 1;
1208 RTDBGLINE LinePrev = { 0, 0, 0, 0, 0, "" };
1209 int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1210 if (iRangeLeft == 0) /* kludge for 'r'. */
1211 iRangeLeft = -1;
1212 for (;;)
1213 {
1214 /*
1215 * Get line info.
1216 */
1217 RTDBGLINE Line;
1218 RTGCINTPTR off;
1219 DBGFADDRESS SourcePosAddr;
1220 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->SourcePos, &SourcePosAddr);
1221 if (RT_FAILURE(rc))
1222 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%Dv)", &pDbgc->SourcePos);
1223 rc = DBGFR3AsLineByAddr(pUVM, pDbgc->hDbgAs, &SourcePosAddr, &off, &Line, NULL);
1224 if (RT_FAILURE(rc))
1225 return VINF_SUCCESS;
1226
1227 unsigned cLines = 0;
1228 if (memcmp(&Line, &LinePrev, sizeof(Line)))
1229 {
1230 /*
1231 * Print filenamename
1232 */
1233 if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1234 fFirst = true;
1235 if (fFirst)
1236 {
1237 rc = DBGCCmdHlpPrintf(pCmdHlp, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1238 if (RT_FAILURE(rc))
1239 return rc;
1240 }
1241
1242 /*
1243 * Try open the file and read the line.
1244 */
1245 FILE *phFile = fopen(Line.szFilename, "r");
1246 if (phFile)
1247 {
1248 /* Skip ahead to the desired line. */
1249 char szLine[4096];
1250 unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1251 if (cBefore > 7)
1252 cBefore = 0;
1253 unsigned cLeft = Line.uLineNo - cBefore;
1254 while (cLeft > 0)
1255 {
1256 szLine[0] = '\0';
1257 if (!fgets(szLine, sizeof(szLine), phFile))
1258 break;
1259 cLeft--;
1260 }
1261 if (!cLeft)
1262 {
1263 /* print the before lines */
1264 for (;;)
1265 {
1266 size_t cch = strlen(szLine);
1267 while (cch > 0 && (szLine[cch - 1] == '\r' || szLine[cch - 1] == '\n' || RT_C_IS_SPACE(szLine[cch - 1])) )
1268 szLine[--cch] = '\0';
1269 if (cBefore-- <= 0)
1270 break;
1271
1272 rc = DBGCCmdHlpPrintf(pCmdHlp, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1273 szLine[0] = '\0';
1274 fgets(szLine, sizeof(szLine), phFile);
1275 cLines++;
1276 }
1277 /* print the actual line */
1278 rc = DBGCCmdHlpPrintf(pCmdHlp, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1279 }
1280 fclose(phFile);
1281 if (RT_FAILURE(rc))
1282 return rc;
1283 fFirst = false;
1284 }
1285 else
1286 return DBGCCmdHlpPrintf(pCmdHlp, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1287
1288 LinePrev = Line;
1289 }
1290
1291
1292 /*
1293 * Advance
1294 */
1295 if (iRangeLeft < 0) /* 'r' */
1296 break;
1297 if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1298 iRangeLeft -= cLines;
1299 else
1300 iRangeLeft -= 1;
1301 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1302 if (RT_FAILURE(rc))
1303 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1304 if (iRangeLeft <= 0)
1305 break;
1306 }
1307
1308 NOREF(pCmd);
1309 return 0;
1310}
1311
1312
1313/**
1314 * @interface_method_impl{FNDBCCMD, The 'r' command.}
1315 */
1316static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1317{
1318 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1319 if (!pDbgc->fRegCtxGuest)
1320 return dbgcCmdRegHyper(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1321 return dbgcCmdRegGuest(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1322}
1323
1324
1325/**
1326 * @interface_method_impl{FNDBCCMD, Common worker for the dbgcCmdReg*()
1327 * commands.}
1328 */
1329static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs,
1330 const char *pszPrefix)
1331{
1332 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1333 Assert(cArgs == 1 || cArgs == 2); /* cArgs == 0 is handled by the caller */
1334 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1 || cArgs == 2);
1335 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_STRING
1336 || paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL);
1337
1338 /*
1339 * Parse the register name and kind.
1340 */
1341 const char *pszReg = paArgs[0].u.pszString;
1342 if (*pszReg == '@')
1343 pszReg++;
1344 VMCPUID idCpu = pDbgc->idCpu;
1345 if (*pszPrefix)
1346 idCpu |= DBGFREG_HYPER_VMCPUID;
1347 if (*pszReg == '.')
1348 {
1349 pszReg++;
1350 idCpu |= DBGFREG_HYPER_VMCPUID;
1351 }
1352 const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1353
1354 /*
1355 * Query the register type & value (the setter needs the type).
1356 */
1357 DBGFREGVALTYPE enmType;
1358 DBGFREGVAL Value;
1359 int rc = DBGFR3RegNmQuery(pUVM, idCpu, pszReg, &Value, &enmType);
1360 if (RT_FAILURE(rc))
1361 {
1362 if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1363 return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1364 pszActualPrefix, pszReg);
1365 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1366 pszActualPrefix, pszReg, rc);
1367 }
1368 if (cArgs == 1)
1369 {
1370 /*
1371 * Show the register.
1372 */
1373 char szValue[160];
1374 rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /*fSpecial*/);
1375 if (RT_SUCCESS(rc))
1376 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1377 else
1378 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1379 }
1380 else if (cArgs == 2)
1381 {
1382 /*
1383 * Modify the register.
1384 */
1385 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 1, paArgs[1].enmType == DBGCVAR_TYPE_STRING
1386 || paArgs[1].enmType == DBGCVAR_TYPE_SYMBOL);
1387 if (enmType != DBGFREGVALTYPE_DTR)
1388 {
1389 enmType = DBGFREGVALTYPE_U64;
1390 rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.u64);
1391 }
1392 else
1393 {
1394 enmType = DBGFREGVALTYPE_DTR;
1395 rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.dtr.u64Base);
1396 if (RT_SUCCESS(rc) && paArgs[1].enmRangeType != DBGCVAR_RANGE_NONE)
1397 Value.dtr.u32Limit = (uint32_t)paArgs[1].u64Range;
1398 }
1399 if (RT_SUCCESS(rc))
1400 {
1401 rc = DBGFR3RegNmSet(pUVM, idCpu, pszReg, &Value, enmType);
1402 if (RT_FAILURE(rc))
1403 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1404 pszActualPrefix, pszReg, rc);
1405 }
1406 else
1407 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1408 }
1409 else
1410 {
1411 NOREF(pCmd); NOREF(paArgs);
1412 rc = DBGCCmdHlpPrintf(pCmdHlp, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1413 }
1414 return rc;
1415}
1416
1417
1418/**
1419 * @interface_method_impl{FNDBCCMD,
1420 * The 'rg', 'rg64' and 'rg32' commands, worker for 'r'.}
1421 */
1422static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1423{
1424 /*
1425 * Show all registers our selves.
1426 */
1427 if (cArgs == 0)
1428 {
1429 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1430 bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1431 || ( strcmp(pCmd->pszCmd, "rg32") != 0
1432 && DBGFR3CpuIsIn64BitCode(pUVM, pDbgc->idCpu));
1433 char szDisAndRegs[8192];
1434 int rc;
1435
1436 if (pDbgc->fRegTerse)
1437 {
1438 if (f64BitMode)
1439 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1440 "u %016VR{rip} L 0\n"
1441 "rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1442 "rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1443 "r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1444 "r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1445 "rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1446 "cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1447 else
1448 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1449 "u %04VR{cs}:%08VR{eip} L 0\n"
1450 "eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1451 "eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1452 "cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1453 }
1454 else
1455 {
1456 if (f64BitMode)
1457 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1458 "u %016VR{rip} L 0\n"
1459 "rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1460 "rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1461 "r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1462 "r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1463 "rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1464 "cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1465 "ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1466 "es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1467 "fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1468 "gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1469 "ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1470 "dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1471 "dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1472 "gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1473 "ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1474 "tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1475 " sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1476 " efer=%016VR{efer}\n"
1477 " pat=%016VR{pat}\n"
1478 " sf_mask=%016VR{sf_mask}\n"
1479 "krnl_gs_base=%016VR{krnl_gs_base}\n"
1480 " lstar=%016VR{lstar}\n"
1481 " star=%016VR{star} cstar=%016VR{cstar}\n"
1482 "fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1483 );
1484 else
1485 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1486 "u %04VR{cs}:%08VR{eip} L 0\n"
1487 "eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1488 "eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1489 "cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1490 "ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1491 "es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr7=%08VR{dr7}\n"
1492 "fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr2}\n"
1493 "gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr3} cr4=%08VR{cr4}\n"
1494 "ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1495 "gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1496 "ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1497 "tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1498 "sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1499 "fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1500 );
1501 }
1502 if (RT_FAILURE(rc))
1503 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1504 char *pszRegs = strchr(szDisAndRegs, '\n');
1505 *pszRegs++ = '\0';
1506 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1507
1508 /*
1509 * Disassemble one instruction at cs:[r|e]ip.
1510 */
1511 if (!f64BitMode && strstr(pszRegs, " vm ")) /* a big ugly... */
1512 return pCmdHlp->pfnExec(pCmdHlp, "uv86 %s", szDisAndRegs + 2);
1513 return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1514 }
1515 return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, "");
1516}
1517
1518
1519/**
1520 * @interface_method_impl{FNDBCCMD, The 'rh' command.}
1521 */
1522static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1523{
1524 /*
1525 * Show all registers our selves.
1526 */
1527 if (cArgs == 0)
1528 {
1529 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1530 char szDisAndRegs[8192];
1531 int rc;
1532
1533 if (pDbgc->fRegTerse)
1534 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu | DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1535 "u %VR{cs}:%VR{eip} L 0\n"
1536 ".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1537 ".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1538 ".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1539 else
1540 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu | DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1541 "u %04VR{cs}:%08VR{eip} L 0\n"
1542 ".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1543 ".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1544 ".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1545 ".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1546 ".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1547 ".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1548 ".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1549 ".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1550 ".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1551 ".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1552 ".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1553 );
1554 if (RT_FAILURE(rc))
1555 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1556 char *pszRegs = strchr(szDisAndRegs, '\n');
1557 *pszRegs++ = '\0';
1558 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1559
1560 /*
1561 * Disassemble one instruction at cs:[r|e]ip.
1562 */
1563 return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1564 }
1565 return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, ".");
1566}
1567
1568
1569/**
1570 * @interface_method_impl{FNDBCCMD, The 'rt' command.}
1571 */
1572static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1573{
1574 NOREF(pCmd); NOREF(pUVM); NOREF(paArgs); NOREF(cArgs);
1575
1576 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1577 pDbgc->fRegTerse = !pDbgc->fRegTerse;
1578 return DBGCCmdHlpPrintf(pCmdHlp, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1579}
1580
1581
1582/**
1583 * @interface_method_impl{FNDBCCMD, The 't' command.}
1584 */
1585static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1586{
1587 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1588
1589 int rc = DBGFR3Step(pUVM, pDbgc->idCpu);
1590 if (RT_SUCCESS(rc))
1591 pDbgc->fReady = false;
1592 else
1593 rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1594
1595 NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
1596 return rc;
1597}
1598
1599
1600/**
1601 * @interface_method_impl{FNDBCCMD, The 'k', 'kg' and 'kh' commands.}
1602 */
1603static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1604{
1605 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1606
1607 /*
1608 * Figure which context we're called for and start walking that stack.
1609 */
1610 int rc;
1611 PCDBGFSTACKFRAME pFirstFrame;
1612 bool const fGuest = pCmd->pszCmd[1] == 'g'
1613 || (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1614 rc = DBGFR3StackWalkBegin(pUVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1615 if (RT_FAILURE(rc))
1616 return DBGCCmdHlpPrintf(pCmdHlp, "Failed to begin stack walk, rc=%Rrc\n", rc);
1617
1618 /*
1619 * Print header.
1620 * 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1621 */
1622 uint32_t fBitFlags = 0;
1623 for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1624 pFrame;
1625 pFrame = DBGFR3StackWalkNext(pFrame))
1626 {
1627 uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT | DBGFSTACKFRAME_FLAGS_32BIT | DBGFSTACKFRAME_FLAGS_64BIT);
1628 if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1629 {
1630 if (fCurBitFlags != fBitFlags)
1631 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1632 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1633 pFrame->AddrFrame.Sel,
1634 (uint16_t)pFrame->AddrFrame.off,
1635 pFrame->AddrReturnFrame.Sel,
1636 (uint16_t)pFrame->AddrReturnFrame.off,
1637 (uint32_t)pFrame->AddrReturnPC.Sel,
1638 (uint32_t)pFrame->AddrReturnPC.off,
1639 pFrame->Args.au32[0],
1640 pFrame->Args.au32[1],
1641 pFrame->Args.au32[2],
1642 pFrame->Args.au32[3]);
1643 }
1644 else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1645 {
1646 if (fCurBitFlags != fBitFlags)
1647 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1648 rc = DBGCCmdHlpPrintf(pCmdHlp, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1649 (uint32_t)pFrame->AddrFrame.off,
1650 (uint32_t)pFrame->AddrReturnFrame.off,
1651 (uint32_t)pFrame->AddrReturnPC.Sel,
1652 (uint32_t)pFrame->AddrReturnPC.off,
1653 pFrame->Args.au32[0],
1654 pFrame->Args.au32[1],
1655 pFrame->Args.au32[2],
1656 pFrame->Args.au32[3]);
1657 }
1658 else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1659 {
1660 if (fCurBitFlags != fBitFlags)
1661 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1662 rc = DBGCCmdHlpPrintf(pCmdHlp, "%016RX64 %04RX16:%016RX64 %016RX64",
1663 (uint64_t)pFrame->AddrFrame.off,
1664 pFrame->AddrReturnFrame.Sel,
1665 (uint64_t)pFrame->AddrReturnFrame.off,
1666 (uint64_t)pFrame->AddrReturnPC.off);
1667 }
1668 if (RT_FAILURE(rc))
1669 break;
1670 if (!pFrame->pSymPC)
1671 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1672 fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1673 ? " %RTsel:%016RGv"
1674 : fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT
1675 ? " %RTsel:%08RGv"
1676 : " %RTsel:%04RGv"
1677 , pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1678 else
1679 {
1680 RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1681 if (offDisp > 0)
1682 rc = DBGCCmdHlpPrintf(pCmdHlp, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1683 else if (offDisp < 0)
1684 rc = DBGCCmdHlpPrintf(pCmdHlp, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1685 else
1686 rc = DBGCCmdHlpPrintf(pCmdHlp, " %s", pFrame->pSymPC->szName);
1687 }
1688 if (RT_SUCCESS(rc) && pFrame->pLinePC)
1689 rc = DBGCCmdHlpPrintf(pCmdHlp, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1690 if (RT_SUCCESS(rc))
1691 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
1692 if (RT_FAILURE(rc))
1693 break;
1694
1695 fBitFlags = fCurBitFlags;
1696 }
1697
1698 DBGFR3StackWalkEnd(pFirstFrame);
1699
1700 NOREF(paArgs); NOREF(cArgs);
1701 return rc;
1702}
1703
1704
1705static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1706{
1707 /* GUEST64 */
1708 int rc;
1709
1710 const char *pszHyper = fHyper ? " HYPER" : "";
1711 const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1712 if (pDesc->Gen.u1DescType)
1713 {
1714 static const char * const s_apszTypes[] =
1715 {
1716 "DataRO", /* 0 Read-Only */
1717 "DataRO", /* 1 Read-Only - Accessed */
1718 "DataRW", /* 2 Read/Write */
1719 "DataRW", /* 3 Read/Write - Accessed */
1720 "DownRO", /* 4 Expand-down, Read-Only */
1721 "DownRO", /* 5 Expand-down, Read-Only - Accessed */
1722 "DownRW", /* 6 Expand-down, Read/Write */
1723 "DownRW", /* 7 Expand-down, Read/Write - Accessed */
1724 "CodeEO", /* 8 Execute-Only */
1725 "CodeEO", /* 9 Execute-Only - Accessed */
1726 "CodeER", /* A Execute/Readable */
1727 "CodeER", /* B Execute/Readable - Accessed */
1728 "ConfE0", /* C Conforming, Execute-Only */
1729 "ConfE0", /* D Conforming, Execute-Only - Accessed */
1730 "ConfER", /* E Conforming, Execute/Readable */
1731 "ConfER" /* F Conforming, Execute/Readable - Accessed */
1732 };
1733 const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1734 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1735 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1736 uint32_t u32Base = X86DESC_BASE(pDesc);
1737 uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1738
1739 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1740 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1741 pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1742 pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1743 }
1744 else
1745 {
1746 static const char * const s_apszTypes[] =
1747 {
1748 "Ill-0 ", /* 0 0000 Reserved (Illegal) */
1749 "Ill-1 ", /* 1 0001 Available 16-bit TSS */
1750 "LDT ", /* 2 0010 LDT */
1751 "Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1752 "Ill-4 ", /* 4 0100 16-bit Call Gate */
1753 "Ill-5 ", /* 5 0101 Task Gate */
1754 "Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1755 "Ill-7 ", /* 7 0111 16-bit Trap Gate */
1756 "Ill-8 ", /* 8 1000 Reserved (Illegal) */
1757 "Tss64A", /* 9 1001 Available 32-bit TSS */
1758 "Ill-A ", /* A 1010 Reserved (Illegal) */
1759 "Tss64B", /* B 1011 Busy 32-bit TSS */
1760 "Call64", /* C 1100 32-bit Call Gate */
1761 "Ill-D ", /* D 1101 Reserved (Illegal) */
1762 "Int64 ", /* E 1110 32-bit Interrupt Gate */
1763 "Trap64" /* F 1111 32-bit Trap Gate */
1764 };
1765 switch (pDesc->Gen.u4Type)
1766 {
1767 /* raw */
1768 case X86_SEL_TYPE_SYS_UNDEFINED:
1769 case X86_SEL_TYPE_SYS_UNDEFINED2:
1770 case X86_SEL_TYPE_SYS_UNDEFINED4:
1771 case X86_SEL_TYPE_SYS_UNDEFINED3:
1772 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1773 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1774 case X86_SEL_TYPE_SYS_286_CALL_GATE:
1775 case X86_SEL_TYPE_SYS_286_INT_GATE:
1776 case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1777 case X86_SEL_TYPE_SYS_TASK_GATE:
1778 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1779 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1780 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1781 break;
1782
1783 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1784 case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1785 case X86_SEL_TYPE_SYS_LDT:
1786 {
1787 const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1788 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1789 const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1790
1791 uint64_t u32Base = X86DESC64_BASE(pDesc);
1792 uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1793
1794 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1795 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1796 pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1797 pDesc->Gen.u1Available, pDesc->Gen.u1Long | (pDesc->Gen.u1DefBig << 1),
1798 pszHyper);
1799 if (pfDblEntry)
1800 *pfDblEntry = true;
1801 break;
1802 }
1803
1804 case X86_SEL_TYPE_SYS_386_CALL_GATE:
1805 {
1806 unsigned cParams = pDesc->au8[4] & 0x1f;
1807 const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1808 RTSEL sel = pDesc->au16[1];
1809 uint64_t off = pDesc->au16[0]
1810 | ((uint64_t)pDesc->au16[3] << 16)
1811 | ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1812 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1813 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1814 pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1815 if (pfDblEntry)
1816 *pfDblEntry = true;
1817 break;
1818 }
1819
1820 case X86_SEL_TYPE_SYS_386_INT_GATE:
1821 case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1822 {
1823 RTSEL sel = pDesc->au16[1];
1824 uint64_t off = pDesc->au16[0]
1825 | ((uint64_t)pDesc->au16[3] << 16)
1826 | ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1827 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1828 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1829 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1830 if (pfDblEntry)
1831 *pfDblEntry = true;
1832 break;
1833 }
1834
1835 /* impossible, just it's necessary to keep gcc happy. */
1836 default:
1837 return VINF_SUCCESS;
1838 }
1839 }
1840 return VINF_SUCCESS;
1841}
1842
1843
1844/**
1845 * Worker function that displays one descriptor entry (GDT, LDT, IDT).
1846 *
1847 * @returns pfnPrintf status code.
1848 * @param pCmdHlp The DBGC command helpers.
1849 * @param pDesc The descriptor to display.
1850 * @param iEntry The descriptor entry number.
1851 * @param fHyper Whether the selector belongs to the hypervisor or not.
1852 */
1853static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1854{
1855 int rc;
1856
1857 const char *pszHyper = fHyper ? " HYPER" : "";
1858 const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1859 if (pDesc->Gen.u1DescType)
1860 {
1861 static const char * const s_apszTypes[] =
1862 {
1863 "DataRO", /* 0 Read-Only */
1864 "DataRO", /* 1 Read-Only - Accessed */
1865 "DataRW", /* 2 Read/Write */
1866 "DataRW", /* 3 Read/Write - Accessed */
1867 "DownRO", /* 4 Expand-down, Read-Only */
1868 "DownRO", /* 5 Expand-down, Read-Only - Accessed */
1869 "DownRW", /* 6 Expand-down, Read/Write */
1870 "DownRW", /* 7 Expand-down, Read/Write - Accessed */
1871 "CodeEO", /* 8 Execute-Only */
1872 "CodeEO", /* 9 Execute-Only - Accessed */
1873 "CodeER", /* A Execute/Readable */
1874 "CodeER", /* B Execute/Readable - Accessed */
1875 "ConfE0", /* C Conforming, Execute-Only */
1876 "ConfE0", /* D Conforming, Execute-Only - Accessed */
1877 "ConfER", /* E Conforming, Execute/Readable */
1878 "ConfER" /* F Conforming, Execute/Readable - Accessed */
1879 };
1880 const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1881 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1882 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1883 uint32_t u32Base = pDesc->Gen.u16BaseLow
1884 | ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1885 | ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1886 uint32_t cbLimit = pDesc->Gen.u16LimitLow | (pDesc->Gen.u4LimitHigh << 16);
1887 if (pDesc->Gen.u1Granularity)
1888 cbLimit <<= PAGE_SHIFT;
1889
1890 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1891 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1892 pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1893 pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1894 }
1895 else
1896 {
1897 static const char * const s_apszTypes[] =
1898 {
1899 "Ill-0 ", /* 0 0000 Reserved (Illegal) */
1900 "Tss16A", /* 1 0001 Available 16-bit TSS */
1901 "LDT ", /* 2 0010 LDT */
1902 "Tss16B", /* 3 0011 Busy 16-bit TSS */
1903 "Call16", /* 4 0100 16-bit Call Gate */
1904 "TaskG ", /* 5 0101 Task Gate */
1905 "Int16 ", /* 6 0110 16-bit Interrupt Gate */
1906 "Trap16", /* 7 0111 16-bit Trap Gate */
1907 "Ill-8 ", /* 8 1000 Reserved (Illegal) */
1908 "Tss32A", /* 9 1001 Available 32-bit TSS */
1909 "Ill-A ", /* A 1010 Reserved (Illegal) */
1910 "Tss32B", /* B 1011 Busy 32-bit TSS */
1911 "Call32", /* C 1100 32-bit Call Gate */
1912 "Ill-D ", /* D 1101 Reserved (Illegal) */
1913 "Int32 ", /* E 1110 32-bit Interrupt Gate */
1914 "Trap32" /* F 1111 32-bit Trap Gate */
1915 };
1916 switch (pDesc->Gen.u4Type)
1917 {
1918 /* raw */
1919 case X86_SEL_TYPE_SYS_UNDEFINED:
1920 case X86_SEL_TYPE_SYS_UNDEFINED2:
1921 case X86_SEL_TYPE_SYS_UNDEFINED4:
1922 case X86_SEL_TYPE_SYS_UNDEFINED3:
1923 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1924 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1925 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1926 break;
1927
1928 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1929 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1930 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1931 case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1932 case X86_SEL_TYPE_SYS_LDT:
1933 {
1934 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1935 const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1936 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1937 uint32_t u32Base = pDesc->Gen.u16BaseLow
1938 | ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1939 | ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1940 uint32_t cbLimit = pDesc->Gen.u16LimitLow | (pDesc->Gen.u4LimitHigh << 16);
1941 if (pDesc->Gen.u1Granularity)
1942 cbLimit <<= PAGE_SHIFT;
1943
1944 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1945 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1946 pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1947 pDesc->Gen.u1Available, pDesc->Gen.u1Long | (pDesc->Gen.u1DefBig << 1),
1948 pszHyper);
1949 break;
1950 }
1951
1952 case X86_SEL_TYPE_SYS_TASK_GATE:
1953 {
1954 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s TSS=%04x DPL=%d %s%s\n",
1955 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1956 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1957 break;
1958 }
1959
1960 case X86_SEL_TYPE_SYS_286_CALL_GATE:
1961 case X86_SEL_TYPE_SYS_386_CALL_GATE:
1962 {
1963 unsigned cParams = pDesc->au8[4] & 0x1f;
1964 const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1965 RTSEL sel = pDesc->au16[1];
1966 uint32_t off = pDesc->au16[0] | ((uint32_t)pDesc->au16[3] << 16);
1967 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
1968 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1969 pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1970 break;
1971 }
1972
1973 case X86_SEL_TYPE_SYS_286_INT_GATE:
1974 case X86_SEL_TYPE_SYS_386_INT_GATE:
1975 case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1976 case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1977 {
1978 RTSEL sel = pDesc->au16[1];
1979 uint32_t off = pDesc->au16[0] | ((uint32_t)pDesc->au16[3] << 16);
1980 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
1981 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1982 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1983 break;
1984 }
1985
1986 /* impossible, just it's necessary to keep gcc happy. */
1987 default:
1988 return VINF_SUCCESS;
1989 }
1990 }
1991 return rc;
1992}
1993
1994
1995/**
1996 * @interface_method_impl{FNDBCCMD, The 'dg', 'dga', 'dl' and 'dla' commands.}
1997 */
1998static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1999{
2000 /*
2001 * Validate input.
2002 */
2003 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2004
2005 /*
2006 * Get the CPU mode, check which command variation this is
2007 * and fix a default parameter if needed.
2008 */
2009 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2010 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2011 CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2012 bool fGdt = pCmd->pszCmd[1] == 'g';
2013 bool fAll = pCmd->pszCmd[2] == 'a';
2014 RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
2015
2016 DBGCVAR Var;
2017 if (!cArgs)
2018 {
2019 cArgs = 1;
2020 paArgs = &Var;
2021 Var.enmType = DBGCVAR_TYPE_NUMBER;
2022 Var.u.u64Number = 0;
2023 Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2024 Var.u64Range = 1024;
2025 }
2026
2027 /*
2028 * Process the arguments.
2029 */
2030 for (unsigned i = 0; i < cArgs; i++)
2031 {
2032 /*
2033 * Retrieve the selector value from the argument.
2034 * The parser may confuse pointers and numbers if more than one
2035 * argument is given, that that into account.
2036 */
2037 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER || DBGCVAR_ISPOINTER(paArgs[i].enmType));
2038 uint64_t u64;
2039 unsigned cSels = 1;
2040 switch (paArgs[i].enmType)
2041 {
2042 case DBGCVAR_TYPE_NUMBER:
2043 u64 = paArgs[i].u.u64Number;
2044 if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2045 cSels = RT_MIN(paArgs[i].u64Range, 1024);
2046 break;
2047 case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2048 case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2049 case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2050 case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2051 case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2052 default: u64 = _64K; break;
2053 }
2054 if (u64 < _64K)
2055 {
2056 unsigned Sel = (RTSEL)u64;
2057
2058 /*
2059 * Dump the specified range.
2060 */
2061 bool fSingle = cSels == 1;
2062 while ( cSels-- > 0
2063 && Sel < _64K)
2064 {
2065 DBGFSELINFO SelInfo;
2066 int rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, Sel | SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2067 if (RT_SUCCESS(rc))
2068 {
2069 if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2070 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x RealM Bas=%04x Lim=%04x\n",
2071 Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2072 else if ( fAll
2073 || fSingle
2074 || SelInfo.u.Raw.Gen.u1Present)
2075 {
2076 if (enmMode == CPUMMODE_PROTECTED)
2077 rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2078 else
2079 {
2080 bool fDblSkip = false;
2081 rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2082 if (fDblSkip)
2083 Sel += 4;
2084 }
2085 }
2086 }
2087 else
2088 {
2089 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %Rrc\n", Sel, rc);
2090 if (!fAll)
2091 return rc;
2092 }
2093 if (RT_FAILURE(rc))
2094 return rc;
2095
2096 /* next */
2097 Sel += 8;
2098 }
2099 }
2100 else
2101 DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds\n", u64);
2102 }
2103
2104 return VINF_SUCCESS;
2105}
2106
2107
2108/**
2109 * @interface_method_impl{FNDBCCMD, The 'di' and 'dia' commands.}
2110 */
2111static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2112{
2113 /*
2114 * Validate input.
2115 */
2116 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2117
2118 /*
2119 * Establish some stuff like the current IDTR and CPU mode,
2120 * and fix a default parameter.
2121 */
2122 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2123 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2124 uint16_t cbLimit;
2125 RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2126 CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2127 unsigned cbEntry;
2128 switch (enmMode)
2129 {
2130 case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2131 case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2132 case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2133 default:
2134 return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid CPU mode %d.\n", enmMode);
2135 }
2136
2137 bool fAll = pCmd->pszCmd[2] == 'a';
2138 DBGCVAR Var;
2139 if (!cArgs)
2140 {
2141 cArgs = 1;
2142 paArgs = &Var;
2143 Var.enmType = DBGCVAR_TYPE_NUMBER;
2144 Var.u.u64Number = 0;
2145 Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2146 Var.u64Range = 256;
2147 }
2148
2149 /*
2150 * Process the arguments.
2151 */
2152 for (unsigned i = 0; i < cArgs; i++)
2153 {
2154 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER);
2155 if (paArgs[i].u.u64Number < 256)
2156 {
2157 RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2158 unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2159 ? paArgs[i].u64Range
2160 : 1;
2161 bool fSingle = cInts == 1;
2162 while ( cInts-- > 0
2163 && iInt < 256)
2164 {
2165 /*
2166 * Try read it.
2167 */
2168 union
2169 {
2170 RTFAR16 Real;
2171 X86DESC Prot;
2172 X86DESC64 Long;
2173 } u;
2174 if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2175 {
2176 DBGCCmdHlpPrintf(pCmdHlp, "%04x not within the IDT\n", (unsigned)iInt);
2177 if (!fAll && !fSingle)
2178 return VINF_SUCCESS;
2179 }
2180 DBGCVAR AddrVar;
2181 AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2182 AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2183 AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2184 int rc = pCmdHlp->pfnMemRead(pCmdHlp, &u, cbEntry, &AddrVar, NULL);
2185 if (RT_FAILURE(rc))
2186 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2187
2188 /*
2189 * Display it.
2190 */
2191 switch (enmMode)
2192 {
2193 case CPUMMODE_REAL:
2194 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2195 /** @todo resolve 16:16 IDTE to a symbol */
2196 break;
2197 case CPUMMODE_PROTECTED:
2198 if (fAll || fSingle || u.Prot.Gen.u1Present)
2199 rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2200 break;
2201 case CPUMMODE_LONG:
2202 if (fAll || fSingle || u.Long.Gen.u1Present)
2203 rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2204 break;
2205 default: break; /* to shut up gcc */
2206 }
2207 if (RT_FAILURE(rc))
2208 return rc;
2209
2210 /* next */
2211 iInt++;
2212 }
2213 }
2214 else
2215 DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2216 }
2217
2218 return VINF_SUCCESS;
2219}
2220
2221
2222/**
2223 * @interface_method_impl{FNDBCCMD, The 'da', 'dq', 'dd', 'dw' and 'db'
2224 * commands.}
2225 */
2226static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2227{
2228 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2229
2230 /*
2231 * Validate input.
2232 */
2233 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2234 if (cArgs == 1)
2235 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2236 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2237
2238 /*
2239 * Figure out the element size.
2240 */
2241 unsigned cbElement;
2242 bool fAscii = false;
2243 switch (pCmd->pszCmd[1])
2244 {
2245 default:
2246 case 'b': cbElement = 1; break;
2247 case 'w': cbElement = 2; break;
2248 case 'd': cbElement = 4; break;
2249 case 'q': cbElement = 8; break;
2250 case 'a':
2251 cbElement = 1;
2252 fAscii = true;
2253 break;
2254 case '\0':
2255 fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2256 cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2257 if (!cbElement)
2258 cbElement = 1;
2259 break;
2260 }
2261
2262 /*
2263 * Find address.
2264 */
2265 if (!cArgs)
2266 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2267 else
2268 pDbgc->DumpPos = paArgs[0];
2269
2270 /*
2271 * Range.
2272 */
2273 switch (pDbgc->DumpPos.enmRangeType)
2274 {
2275 case DBGCVAR_RANGE_NONE:
2276 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2277 pDbgc->DumpPos.u64Range = 0x60;
2278 break;
2279
2280 case DBGCVAR_RANGE_ELEMENTS:
2281 if (pDbgc->DumpPos.u64Range > 2048)
2282 return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many elements requested. Max is 2048 elements.\n");
2283 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2284 pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2285 break;
2286
2287 case DBGCVAR_RANGE_BYTES:
2288 if (pDbgc->DumpPos.u64Range > 65536)
2289 return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
2290 break;
2291
2292 default:
2293 return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2294 }
2295
2296 pDbgc->pLastPos = &pDbgc->DumpPos;
2297
2298 /*
2299 * Do the dumping.
2300 */
2301 pDbgc->cbDumpElement = cbElement | (fAscii << 31);
2302 int cbLeft = (int)pDbgc->DumpPos.u64Range;
2303 uint8_t u8Prev = '\0';
2304 for (;;)
2305 {
2306 /*
2307 * Read memory.
2308 */
2309 char achBuffer[16];
2310 size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2311 size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2312 int rc = pCmdHlp->pfnMemRead(pCmdHlp, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2313 if (RT_FAILURE(rc))
2314 {
2315 if (u8Prev && u8Prev != '\n')
2316 DBGCCmdHlpPrintf(pCmdHlp, "\n");
2317 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2318 }
2319
2320 /*
2321 * Display it.
2322 */
2323 memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2324 if (!fAscii)
2325 {
2326 DBGCCmdHlpPrintf(pCmdHlp, "%DV:", &pDbgc->DumpPos);
2327 unsigned i;
2328 for (i = 0; i < cb; i += cbElement)
2329 {
2330 const char *pszSpace = " ";
2331 if (cbElement <= 2 && i == 8 && !fAscii)
2332 pszSpace = "-";
2333 switch (cbElement)
2334 {
2335 case 1: DBGCCmdHlpPrintf(pCmdHlp, "%s%02x", pszSpace, *(uint8_t *)&achBuffer[i]); break;
2336 case 2: DBGCCmdHlpPrintf(pCmdHlp, "%s%04x", pszSpace, *(uint16_t *)&achBuffer[i]); break;
2337 case 4: DBGCCmdHlpPrintf(pCmdHlp, "%s%08x", pszSpace, *(uint32_t *)&achBuffer[i]); break;
2338 case 8: DBGCCmdHlpPrintf(pCmdHlp, "%s%016llx", pszSpace, *(uint64_t *)&achBuffer[i]); break;
2339 }
2340 }
2341
2342 /* chars column */
2343 if (pDbgc->cbDumpElement == 1)
2344 {
2345 while (i++ < sizeof(achBuffer))
2346 DBGCCmdHlpPrintf(pCmdHlp, " ");
2347 DBGCCmdHlpPrintf(pCmdHlp, " ");
2348 for (i = 0; i < cb; i += cbElement)
2349 {
2350 uint8_t u8 = *(uint8_t *)&achBuffer[i];
2351 if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2352 DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2353 else
2354 DBGCCmdHlpPrintf(pCmdHlp, ".");
2355 }
2356 }
2357 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2358 }
2359 else
2360 {
2361 /*
2362 * We print up to the first zero and stop there.
2363 * Only printables + '\t' and '\n' are printed.
2364 */
2365 if (!u8Prev)
2366 DBGCCmdHlpPrintf(pCmdHlp, "%DV:\n", &pDbgc->DumpPos);
2367 uint8_t u8 = '\0';
2368 unsigned i;
2369 for (i = 0; i < cb; i++)
2370 {
2371 u8Prev = u8;
2372 u8 = *(uint8_t *)&achBuffer[i];
2373 if ( u8 < 127
2374 && ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2375 || u8 == '\t'
2376 || u8 == '\n'))
2377 DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2378 else if (!u8)
2379 break;
2380 else
2381 DBGCCmdHlpPrintf(pCmdHlp, "\\x%x", u8);
2382 }
2383 if (u8 == '\0')
2384 cb = cbLeft = i + 1;
2385 if (cbLeft - cb <= 0 && u8Prev != '\n')
2386 DBGCCmdHlpPrintf(pCmdHlp, "\n");
2387 }
2388
2389 /*
2390 * Advance
2391 */
2392 cbLeft -= (int)cb;
2393 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2394 if (RT_FAILURE(rc))
2395 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2396 if (cbLeft <= 0)
2397 break;
2398 }
2399
2400 NOREF(pCmd);
2401 return VINF_SUCCESS;
2402}
2403
2404
2405/**
2406 * Best guess at which paging mode currently applies to the guest
2407 * paging structures.
2408 *
2409 * This have to come up with a decent answer even when the guest
2410 * is in non-paged protected mode or real mode.
2411 *
2412 * @returns cr3.
2413 * @param pDbgc The DBGC instance.
2414 * @param pfPAE Where to store the page address extension indicator.
2415 * @param pfLME Where to store the long mode enabled indicator.
2416 * @param pfPSE Where to store the page size extension indicator.
2417 * @param pfPGE Where to store the page global enabled indicator.
2418 * @param pfNXE Where to store the no-execution enabled indicator.
2419 */
2420static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool *pfPAE, bool *pfLME, bool *pfPSE, bool *pfPGE, bool *pfNXE)
2421{
2422 PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2423 RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2424 *pfPSE = !!(cr4 & X86_CR4_PSE);
2425 *pfPGE = !!(cr4 & X86_CR4_PGE);
2426 if (cr4 & X86_CR4_PAE)
2427 {
2428 *pfPSE = true;
2429 *pfPAE = true;
2430 }
2431 else
2432 *pfPAE = false;
2433
2434 *pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2435 *pfNXE = false; /* GUEST64 GUESTNX */
2436 return CPUMGetGuestCR3(pVCpu);
2437}
2438
2439
2440/**
2441 * Determine the shadow paging mode.
2442 *
2443 * @returns cr3.
2444 * @param pDbgc The DBGC instance.
2445 * @param pfPAE Where to store the page address extension indicator.
2446 * @param pfLME Where to store the long mode enabled indicator.
2447 * @param pfPSE Where to store the page size extension indicator.
2448 * @param pfPGE Where to store the page global enabled indicator.
2449 * @param pfNXE Where to store the no-execution enabled indicator.
2450 */
2451static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool *pfPAE, bool *pfLME, bool *pfPSE, bool *pfPGE, bool *pfNXE)
2452{
2453 PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2454
2455 *pfPSE = true;
2456 *pfPGE = false;
2457 switch (PGMGetShadowMode(pVCpu))
2458 {
2459 default:
2460 case PGMMODE_32_BIT:
2461 *pfPAE = *pfLME = *pfNXE = false;
2462 break;
2463 case PGMMODE_PAE:
2464 *pfLME = *pfNXE = false;
2465 *pfPAE = true;
2466 break;
2467 case PGMMODE_PAE_NX:
2468 *pfLME = false;
2469 *pfPAE = *pfNXE = true;
2470 break;
2471 case PGMMODE_AMD64:
2472 *pfNXE = false;
2473 *pfPAE = *pfLME = true;
2474 break;
2475 case PGMMODE_AMD64_NX:
2476 *pfPAE = *pfLME = *pfNXE = true;
2477 break;
2478 }
2479 return PGMGetHyperCR3(pVCpu);
2480}
2481
2482
2483/**
2484 * @interface_method_impl{FNDBCCMD, The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh'
2485 * commands.}
2486 */
2487static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2488{
2489 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2490
2491 /*
2492 * Validate input.
2493 */
2494 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2495 if (cArgs == 1 && pCmd->pszCmd[3] == 'a')
2496 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2497 if (cArgs == 1 && pCmd->pszCmd[3] != 'a')
2498 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2499 || DBGCVAR_ISPOINTER(paArgs[0].enmType));
2500 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2501
2502 /*
2503 * Guest or shadow page directories? Get the paging parameters.
2504 */
2505 bool fGuest = pCmd->pszCmd[3] != 'h';
2506 if (!pCmd->pszCmd[3] || pCmd->pszCmd[3] == 'a')
2507 fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2508 ? pDbgc->fRegCtxGuest
2509 : DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2510
2511 bool fPAE, fLME, fPSE, fPGE, fNXE;
2512 uint64_t cr3 = fGuest
2513 ? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2514 : dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2515 const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2516
2517 /*
2518 * Setup default argument if none was specified.
2519 * Fix address / index confusion.
2520 */
2521 DBGCVAR VarDefault;
2522 if (!cArgs)
2523 {
2524 if (pCmd->pszCmd[3] == 'a')
2525 {
2526 if (fLME || fPAE)
2527 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");
2528 if (fGuest)
2529 DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2530 else
2531 DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2532 }
2533 else
2534 DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2535 paArgs = &VarDefault;
2536 cArgs = 1;
2537 }
2538 else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2539 {
2540 /* If it's a number (not an address), it's an index, so convert it to an address. */
2541 Assert(pCmd->pszCmd[3] != 'a');
2542 VarDefault = paArgs[0];
2543 if (fPAE)
2544 return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2545 if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2546 return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2547 VarDefault.u.u64Number <<= X86_PD_SHIFT;
2548 VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2549 paArgs = &VarDefault;
2550 }
2551
2552 /*
2553 * Locate the PDE to start displaying at.
2554 *
2555 * The 'dpda' command takes the address of a PDE, while the others are guest
2556 * virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2557 * while the others require us to do all the tedious walking thru the paging
2558 * hierarchy to find the intended PDE.
2559 */
2560 unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2561 DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2562 DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2563 unsigned cEntries; /* The number of entries to display. */
2564 unsigned cEntriesMax; /* The max number of entries to display. */
2565 int rc;
2566 if (pCmd->pszCmd[3] == 'a')
2567 {
2568 VarPDEAddr = paArgs[0];
2569 switch (VarPDEAddr.enmRangeType)
2570 {
2571 case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2572 case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2573 default: cEntries = 10; break;
2574 }
2575 cEntriesMax = PAGE_SIZE / cbEntry;
2576 }
2577 else
2578 {
2579 /*
2580 * Determine the range.
2581 */
2582 switch (paArgs[0].enmRangeType)
2583 {
2584 case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2585 case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2586 default: cEntries = 10; break;
2587 }
2588
2589 /*
2590 * Normalize the input address, it must be a flat GC address.
2591 */
2592 rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2593 if (RT_FAILURE(rc))
2594 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2595 if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2596 {
2597 VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2598 VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2599 }
2600 if (fPAE)
2601 VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2602 else
2603 VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2604
2605 /*
2606 * Do the paging walk until we get to the page directory.
2607 */
2608 DBGCVAR VarCur;
2609 if (fGuest)
2610 DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2611 else
2612 DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2613 if (fLME)
2614 {
2615 /* Page Map Level 4 Lookup. */
2616 /* Check if it's a valid address first? */
2617 VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2618 VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2619 X86PML4E Pml4e;
2620 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2621 if (RT_FAILURE(rc))
2622 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2623 if (!Pml4e.n.u1Present)
2624 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2625
2626 VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2627 Assert(fPAE);
2628 }
2629 if (fPAE)
2630 {
2631 /* Page directory pointer table. */
2632 X86PDPE Pdpe;
2633 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2634 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2635 if (RT_FAILURE(rc))
2636 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2637 if (!Pdpe.n.u1Present)
2638 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2639
2640 iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2641 VarPDEAddr = VarCur;
2642 VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2643 VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2644 }
2645 else
2646 {
2647 /* 32-bit legacy - CR3 == page directory. */
2648 iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2649 VarPDEAddr = VarCur;
2650 VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2651 }
2652 cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2653 }
2654
2655 /* adjust cEntries */
2656 cEntries = RT_MAX(1, cEntries);
2657 cEntries = RT_MIN(cEntries, cEntriesMax);
2658
2659 /*
2660 * The display loop.
2661 */
2662 DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2663 &VarPDEAddr, iEntry);
2664 do
2665 {
2666 /*
2667 * Read.
2668 */
2669 X86PDEPAE Pde;
2670 Pde.u = 0;
2671 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, cbEntry, &VarPDEAddr, NULL);
2672 if (RT_FAILURE(rc))
2673 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2674
2675 /*
2676 * Display.
2677 */
2678 if (iEntry != ~0U)
2679 {
2680 DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2681 iEntry++;
2682 }
2683 if (fPSE && Pde.b.u1Size)
2684 DBGCCmdHlpPrintf(pCmdHlp,
2685 fPAE
2686 ? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2687 : "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2688 Pde.u,
2689 Pde.u & X86_PDE_PAE_PG_MASK,
2690 Pde.b.u1Present ? "p " : "np",
2691 Pde.b.u1Write ? "w" : "r",
2692 Pde.b.u1User ? "u" : "s",
2693 Pde.b.u1Accessed ? "a " : "na",
2694 Pde.b.u1Dirty ? "d " : "nd",
2695 Pde.b.u3Available,
2696 Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2697 Pde.b.u1WriteThru ? "pwt" : " ",
2698 Pde.b.u1CacheDisable ? "pcd" : " ",
2699 Pde.b.u1PAT ? "pat" : "",
2700 Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2701 else
2702 DBGCCmdHlpPrintf(pCmdHlp,
2703 fPAE
2704 ? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2705 : "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2706 Pde.u,
2707 Pde.u & X86_PDE_PAE_PG_MASK,
2708 Pde.n.u1Present ? "p " : "np",
2709 Pde.n.u1Write ? "w" : "r",
2710 Pde.n.u1User ? "u" : "s",
2711 Pde.n.u1Accessed ? "a " : "na",
2712 Pde.u & RT_BIT(6) ? "6 " : " ",
2713 Pde.n.u3Available,
2714 Pde.u & RT_BIT(8) ? "8" : " ",
2715 Pde.n.u1WriteThru ? "pwt" : " ",
2716 Pde.n.u1CacheDisable ? "pcd" : " ",
2717 Pde.u & RT_BIT(7) ? "7" : "",
2718 Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2719 if (Pde.u & UINT64_C(0x7fff000000000000))
2720 DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2721 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2722 if (RT_FAILURE(rc))
2723 return rc;
2724
2725 /*
2726 * Advance.
2727 */
2728 VarPDEAddr.u.u64Number += cbEntry;
2729 if (iEntry != ~0U)
2730 VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2731 } while (cEntries-- > 0);
2732
2733 return VINF_SUCCESS;
2734}
2735
2736
2737/**
2738 * @interface_method_impl{FNDBCCMD, The 'dpdb' command.}
2739 */
2740static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2741{
2742 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2743 int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2744 int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2745 if (RT_FAILURE(rc1))
2746 return rc1;
2747 NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
2748 return rc2;
2749}
2750
2751
2752/**
2753 * @interface_method_impl{FNDBCCMD, The 'dph*' commands and main part of 'm'.}
2754 */
2755static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2756{
2757 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2758 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2759
2760 /*
2761 * Figure the context and base flags.
2762 */
2763 uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO | DBGFPGDMP_FLAGS_PRINT_CR3;
2764 if (pCmd->pszCmd[0] == 'm')
2765 fFlags |= DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW;
2766 else if (pCmd->pszCmd[3] == '\0')
2767 fFlags |= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2768 else if (pCmd->pszCmd[3] == 'g')
2769 fFlags |= DBGFPGDMP_FLAGS_GUEST;
2770 else if (pCmd->pszCmd[3] == 'h')
2771 fFlags |= DBGFPGDMP_FLAGS_SHADOW;
2772 else
2773 AssertFailed();
2774
2775 if (pDbgc->cPagingHierarchyDumps == 0)
2776 fFlags |= DBGFPGDMP_FLAGS_HEADER;
2777 pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2778
2779 /*
2780 * Get the range.
2781 */
2782 PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2783 RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2784 int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2785 if (RT_FAILURE(rc))
2786 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2787
2788 uint64_t cbRange;
2789 rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2790 if (RT_FAILURE(rc))
2791 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2792
2793 RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2794 if (cbRange >= GCPtrLast)
2795 GCPtrLast = RTGCPTR_MAX;
2796 else if (!cbRange)
2797 GCPtrLast = GCPtrFirst;
2798 else
2799 GCPtrLast = GCPtrFirst + cbRange - 1;
2800
2801 /*
2802 * Do we have a CR3?
2803 */
2804 uint64_t cr3 = 0;
2805 if (cArgs > 1)
2806 {
2807 if ((fFlags & (DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW))
2808 return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2809 if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2810 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2811 cr3 = paArgs[1].u.u64Number;
2812 }
2813 else
2814 fFlags |= DBGFPGDMP_FLAGS_CURRENT_CR3;
2815
2816 /*
2817 * Do we have a mode?
2818 */
2819 if (cArgs > 2)
2820 {
2821 if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2822 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2823 static const struct MODETOFLAGS
2824 {
2825 const char *pszName;
2826 uint32_t fFlags;
2827 } s_aModeToFlags[] =
2828 {
2829 { "ept", DBGFPGDMP_FLAGS_EPT },
2830 { "legacy", 0 },
2831 { "legacy-np", DBGFPGDMP_FLAGS_NP },
2832 { "pse", DBGFPGDMP_FLAGS_PSE },
2833 { "pse-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_NP },
2834 { "pae", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE },
2835 { "pae-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NP },
2836 { "pae-nx", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NXE },
2837 { "pae-nx-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NXE | DBGFPGDMP_FLAGS_NP },
2838 { "long", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME },
2839 { "long-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NP },
2840 { "long-nx", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NXE },
2841 { "long-nx-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NXE | DBGFPGDMP_FLAGS_NP }
2842 };
2843 int i = RT_ELEMENTS(s_aModeToFlags);
2844 while (i-- > 0)
2845 if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2846 {
2847 fFlags |= s_aModeToFlags[i].fFlags;
2848 break;
2849 }
2850 if (i < 0)
2851 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2852 }
2853 else
2854 fFlags |= DBGFPGDMP_FLAGS_CURRENT_MODE;
2855
2856 /*
2857 * Call the worker.
2858 */
2859 rc = DBGFR3PagingDumpEx(pUVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /*cMaxDepth*/,
2860 DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2861 if (RT_FAILURE(rc))
2862 return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2863 return VINF_SUCCESS;
2864}
2865
2866
2867
2868/**
2869 * @interface_method_impl{FNDBCCMD, The 'dpg*' commands.}
2870 */
2871static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2872{
2873 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2874
2875 /*
2876 * Validate input.
2877 */
2878 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1);
2879 if (pCmd->pszCmd[3] == 'a')
2880 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2881 else
2882 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2883 || DBGCVAR_ISPOINTER(paArgs[0].enmType));
2884 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2885
2886 /*
2887 * Guest or shadow page tables? Get the paging parameters.
2888 */
2889 bool fGuest = pCmd->pszCmd[3] != 'h';
2890 if (!pCmd->pszCmd[3] || pCmd->pszCmd[3] == 'a')
2891 fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2892 ? pDbgc->fRegCtxGuest
2893 : DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2894
2895 bool fPAE, fLME, fPSE, fPGE, fNXE;
2896 uint64_t cr3 = fGuest
2897 ? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2898 : dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2899 const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2900
2901 /*
2902 * Locate the PTE to start displaying at.
2903 *
2904 * The 'dpta' command takes the address of a PTE, while the others are guest
2905 * virtual address which PTEs should be displayed. So, 'pdta' is rather simple
2906 * while the others require us to do all the tedious walking thru the paging
2907 * hierarchy to find the intended PTE.
2908 */
2909 unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
2910 DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
2911 DBGCVAR VarPTEAddr; /* The address of the current PTE. */
2912 unsigned cEntries; /* The number of entries to display. */
2913 unsigned cEntriesMax; /* The max number of entries to display. */
2914 int rc;
2915 if (pCmd->pszCmd[3] == 'a')
2916 {
2917 VarPTEAddr = paArgs[0];
2918 switch (VarPTEAddr.enmRangeType)
2919 {
2920 case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
2921 case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
2922 default: cEntries = 10; break;
2923 }
2924 cEntriesMax = PAGE_SIZE / cbEntry;
2925 }
2926 else
2927 {
2928 /*
2929 * Determine the range.
2930 */
2931 switch (paArgs[0].enmRangeType)
2932 {
2933 case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2934 case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2935 default: cEntries = 10; break;
2936 }
2937
2938 /*
2939 * Normalize the input address, it must be a flat GC address.
2940 */
2941 rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2942 if (RT_FAILURE(rc))
2943 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2944 if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2945 {
2946 VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2947 VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2948 }
2949 VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
2950
2951 /*
2952 * Do the paging walk until we get to the page table.
2953 */
2954 DBGCVAR VarCur;
2955 if (fGuest)
2956 DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2957 else
2958 DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2959 if (fLME)
2960 {
2961 /* Page Map Level 4 Lookup. */
2962 /* Check if it's a valid address first? */
2963 VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2964 VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2965 X86PML4E Pml4e;
2966 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2967 if (RT_FAILURE(rc))
2968 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2969 if (!Pml4e.n.u1Present)
2970 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2971
2972 VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2973 Assert(fPAE);
2974 }
2975 if (fPAE)
2976 {
2977 /* Page directory pointer table. */
2978 X86PDPE Pdpe;
2979 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2980 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2981 if (RT_FAILURE(rc))
2982 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2983 if (!Pdpe.n.u1Present)
2984 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2985
2986 VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2987
2988 /* Page directory (PAE). */
2989 X86PDEPAE Pde;
2990 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
2991 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
2992 if (RT_FAILURE(rc))
2993 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
2994 if (!Pde.n.u1Present)
2995 return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
2996 if (fPSE && Pde.n.u1Size)
2997 return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
2998
2999 iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
3000 VarPTEAddr = VarCur;
3001 VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
3002 VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
3003 }
3004 else
3005 {
3006 /* Page directory (legacy). */
3007 X86PDE Pde;
3008 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
3009 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
3010 if (RT_FAILURE(rc))
3011 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3012 if (!Pde.n.u1Present)
3013 return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3014 if (fPSE && Pde.n.u1Size)
3015 return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3016
3017 iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
3018 VarPTEAddr = VarCur;
3019 VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
3020 VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
3021 }
3022 cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
3023 }
3024
3025 /* adjust cEntries */
3026 cEntries = RT_MAX(1, cEntries);
3027 cEntries = RT_MIN(cEntries, cEntriesMax);
3028
3029 /*
3030 * The display loop.
3031 */
3032 DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3033 &VarPTEAddr, &VarGCPtr, iEntry);
3034 do
3035 {
3036 /*
3037 * Read.
3038 */
3039 X86PTEPAE Pte;
3040 Pte.u = 0;
3041 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pte, cbEntry, &VarPTEAddr, NULL);
3042 if (RT_FAILURE(rc))
3043 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3044
3045 /*
3046 * Display.
3047 */
3048 if (iEntry != ~0U)
3049 {
3050 DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3051 iEntry++;
3052 }
3053 DBGCCmdHlpPrintf(pCmdHlp,
3054 fPAE
3055 ? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3056 : "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3057 Pte.u,
3058 Pte.u & X86_PTE_PAE_PG_MASK,
3059 Pte.n.u1Present ? "p " : "np",
3060 Pte.n.u1Write ? "w" : "r",
3061 Pte.n.u1User ? "u" : "s",
3062 Pte.n.u1Accessed ? "a " : "na",
3063 Pte.n.u1Dirty ? "d " : "nd",
3064 Pte.n.u3Available,
3065 Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3066 Pte.n.u1WriteThru ? "pwt" : " ",
3067 Pte.n.u1CacheDisable ? "pcd" : " ",
3068 Pte.n.u1PAT ? "pat" : " ",
3069 Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3070 );
3071 if (Pte.u & UINT64_C(0x7fff000000000000))
3072 DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3073 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3074 if (RT_FAILURE(rc))
3075 return rc;
3076
3077 /*
3078 * Advance.
3079 */
3080 VarPTEAddr.u.u64Number += cbEntry;
3081 if (iEntry != ~0U)
3082 VarGCPtr.u.GCFlat += PAGE_SIZE;
3083 } while (cEntries-- > 0);
3084
3085 return VINF_SUCCESS;
3086}
3087
3088
3089/**
3090 * @interface_method_impl{FNDBCCMD, The 'dptb' command.}
3091 */
3092static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3093{
3094 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3095 int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3096 int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3097 if (RT_FAILURE(rc1))
3098 return rc1;
3099 NOREF(pCmd); NOREF(cArgs);
3100 return rc2;
3101}
3102
3103
3104/**
3105 * @interface_method_impl{FNDBCCMD, The 'dt' command.}
3106 */
3107static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3108{
3109 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3110 int rc;
3111
3112 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3113 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
3114 if (cArgs == 1)
3115 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType != DBGCVAR_TYPE_STRING
3116 && paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL);
3117
3118 /*
3119 * Check if the command indicates the type.
3120 */
3121 enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3122 if (!strcmp(pCmd->pszCmd, "dt16"))
3123 enmTssType = kTss16;
3124 else if (!strcmp(pCmd->pszCmd, "dt32"))
3125 enmTssType = kTss32;
3126 else if (!strcmp(pCmd->pszCmd, "dt64"))
3127 enmTssType = kTss64;
3128
3129 /*
3130 * We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3131 */
3132 uint32_t SelTss = UINT32_MAX;
3133 DBGCVAR VarTssAddr;
3134 if (cArgs == 0)
3135 {
3136 /** @todo consider querying the hidden bits instead (missing API). */
3137 uint16_t SelTR;
3138 rc = DBGFR3RegCpuQueryU16(pUVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3139 if (RT_FAILURE(rc))
3140 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3141 DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3142 SelTss = SelTR;
3143 }
3144 else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3145 {
3146 if (paArgs[0].u.u64Number < 0xffff)
3147 DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3148 else
3149 {
3150 if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3151 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3152 DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3153 if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3154 {
3155 VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3156 VarTssAddr.u64Range = paArgs[0].u64Range;
3157 }
3158 }
3159 }
3160 else
3161 VarTssAddr = paArgs[0];
3162
3163 /*
3164 * Deal with TSS:ign by means of the GDT.
3165 */
3166 if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3167 {
3168 SelTss = VarTssAddr.u.GCFar.sel;
3169 DBGFSELINFO SelInfo;
3170 rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3171 if (RT_FAILURE(rc))
3172 return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3173 pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3174
3175 if (SelInfo.u.Raw.Gen.u1DescType)
3176 return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3177
3178 switch (SelInfo.u.Raw.Gen.u4Type)
3179 {
3180 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3181 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3182 if (enmTssType == kTssToBeDetermined)
3183 enmTssType = kTss16;
3184 break;
3185
3186 case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3187 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3188 if (enmTssType == kTssToBeDetermined)
3189 enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3190 break;
3191
3192 default:
3193 return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3194 VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3195 }
3196
3197 DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3198 DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3199 }
3200
3201 /*
3202 * Determine the TSS type if none is currently given.
3203 */
3204 if (enmTssType == kTssToBeDetermined)
3205 {
3206 if ( VarTssAddr.u64Range > 0
3207 && VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3208 enmTssType = kTss16;
3209 else
3210 {
3211 uint64_t uEfer;
3212 rc = DBGFR3RegCpuQueryU64(pUVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3213 if ( RT_FAILURE(rc)
3214 || !(uEfer & MSR_K6_EFER_LMA) )
3215 enmTssType = kTss32;
3216 else
3217 enmTssType = kTss64;
3218 }
3219 }
3220
3221 /*
3222 * Figure the min/max sizes.
3223 * ASSUMES max TSS size is 64 KB.
3224 */
3225 uint32_t cbTssMin;
3226 uint32_t cbTssMax;
3227 switch (enmTssType)
3228 {
3229 case kTss16:
3230 cbTssMin = cbTssMax = sizeof(X86TSS16);
3231 break;
3232 case kTss32:
3233 cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3234 cbTssMax = _64K;
3235 break;
3236 case kTss64:
3237 cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3238 cbTssMax = _64K;
3239 break;
3240 default:
3241 AssertFailedReturn(VERR_INTERNAL_ERROR);
3242 }
3243 uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3244 if (cbTss == 0)
3245 cbTss = cbTssMin;
3246 else if (cbTss < cbTssMin)
3247 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3248 cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3249 else if (cbTss > cbTssMax)
3250 cbTss = cbTssMax;
3251 DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3252
3253 /*
3254 * Read the TSS into a temporary buffer.
3255 */
3256 uint8_t abBuf[_64K];
3257 size_t cbTssRead;
3258 rc = DBGCCmdHlpMemRead(pCmdHlp, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3259 if (RT_FAILURE(rc))
3260 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3261 if (cbTssRead < cbTssMin)
3262 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3263 cbTssRead, cbTssMin);
3264 if (cbTssRead < cbTss)
3265 memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3266
3267
3268 /*
3269 * Format the TSS.
3270 */
3271 uint16_t offIoBitmap;
3272 switch (enmTssType)
3273 {
3274 case kTss16:
3275 {
3276 PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3277 if (SelTss != UINT32_MAX)
3278 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3279 else
3280 DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3281 DBGCCmdHlpPrintf(pCmdHlp,
3282 "ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3283 "ip=%04x sp=%04x bp=%04x\n"
3284 "cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3285 "ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3286 "prev=%04x ldtr=%04x\n"
3287 ,
3288 pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3289 pTss->ip, pTss->sp, pTss->bp,
3290 pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3291 pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3292 pTss->selPrev, pTss->selLdt);
3293 if (pTss->cs != 0)
3294 pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3295 offIoBitmap = 0;
3296 break;
3297 }
3298
3299 case kTss32:
3300 {
3301 PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3302 if (SelTss != UINT32_MAX)
3303 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3304 else
3305 DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3306 DBGCCmdHlpPrintf(pCmdHlp,
3307 "eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3308 "eip=%08x esp=%08x ebp=%08x\n"
3309 "cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3310 "ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3311 "prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3312 ,
3313 pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3314 pTss->eip, pTss->esp, pTss->ebp,
3315 pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3316 pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3317 pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3318 if (pTss->cs != 0)
3319 pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3320 offIoBitmap = pTss->offIoBitmap;
3321 break;
3322 }
3323
3324 case kTss64:
3325 {
3326 PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3327 if (SelTss != UINT32_MAX)
3328 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3329 else
3330 DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3331 DBGCCmdHlpPrintf(pCmdHlp,
3332 "rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3333 "ist1=%016RX16 ist2=%016RX16\n"
3334 "ist3=%016RX16 ist4=%016RX16\n"
3335 "ist5=%016RX16 ist6=%016RX16\n"
3336 "ist7=%016RX16 iomap=%04x\n"
3337 ,
3338 pTss->rsp0, pTss->rsp1, pTss->rsp2,
3339 pTss->ist1, pTss->ist2,
3340 pTss->ist3, pTss->ist4,
3341 pTss->ist5, pTss->ist6,
3342 pTss->ist7, pTss->offIoBitmap);
3343 offIoBitmap = pTss->offIoBitmap;
3344 break;
3345 }
3346
3347 default:
3348 AssertFailedReturn(VERR_INTERNAL_ERROR);
3349 }
3350
3351 /*
3352 * Dump the interrupt redirection bitmap.
3353 */
3354 if (enmTssType != kTss16)
3355 {
3356 if ( offIoBitmap > cbTssMin
3357 && offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3358 {
3359 if (offIoBitmap - cbTssMin >= 32)
3360 {
3361 DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3362 uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3363 uint32_t iStart = 0;
3364 bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3365 for (uint32_t i = 0; i < 256; i++)
3366 {
3367 bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3368 if (fThis != fPrev)
3369 {
3370 DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3371 fPrev = fThis;
3372 iStart = i;
3373 }
3374 }
3375 if (iStart != 255)
3376 DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3377 }
3378 else
3379 DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3380 offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3381 }
3382 else if (offIoBitmap > 0)
3383 DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3384 else
3385 DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3386 }
3387
3388 /*
3389 * Dump the I/O permission bitmap if present. The IOPM cannot start below offset 0x64
3390 * (that applies to both 32-bit and 64-bit TSSs since their size is the same).
3391 */
3392 if (enmTssType != kTss16)
3393 {
3394 if (offIoBitmap < cbTss && offIoBitmap >= 0x64)
3395 {
3396 uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3397 DBGCVAR VarAddr;
3398 DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3399 DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3400
3401 uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3402 uint32_t iStart = 0;
3403 bool fPrev = ASMBitTest(pbIoBitmap, 0);
3404 uint32_t cLine = 0;
3405 for (uint32_t i = 1; i < cPorts; i++)
3406 {
3407 bool fThis = ASMBitTest(pbIoBitmap, i);
3408 if (fThis != fPrev)
3409 {
3410 cLine++;
3411 DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3412 fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3413 fPrev = fThis;
3414 iStart = i;
3415 }
3416 }
3417 if (iStart != _64K-1)
3418 DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3419 }
3420 else if (offIoBitmap > 0)
3421 DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3422 else
3423 DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3424 }
3425
3426 return VINF_SUCCESS;
3427}
3428
3429
3430/**
3431 * @interface_method_impl{FNDBCCMD, The 'm' command.}
3432 */
3433static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3434{
3435 DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3436 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3437 return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
3438}
3439
3440
3441/**
3442 * Converts one or more variables into a byte buffer for a
3443 * given unit size.
3444 *
3445 * @returns VBox status codes:
3446 * @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3447 * @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3448 * @retval VINF_SUCCESS on success.
3449 *
3450 * @param pvBuf The buffer to convert into.
3451 * @param pcbBuf The buffer size on input. The size of the result on output.
3452 * @param cbUnit The unit size to apply when converting.
3453 * The high bit is used to indicate unicode string.
3454 * @param paVars The array of variables to convert.
3455 * @param cVars The number of variables.
3456 */
3457int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void *pvBuf, uint32_t *pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3458{
3459 union
3460 {
3461 uint8_t *pu8;
3462 uint16_t *pu16;
3463 uint32_t *pu32;
3464 uint64_t *pu64;
3465 } u, uEnd;
3466 u.pu8 = (uint8_t *)pvBuf;
3467 uEnd.pu8 = u.pu8 + *pcbBuf;
3468
3469 unsigned i;
3470 for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3471 {
3472 switch (paVars[i].enmType)
3473 {
3474 case DBGCVAR_TYPE_GC_FAR:
3475 case DBGCVAR_TYPE_GC_FLAT:
3476 case DBGCVAR_TYPE_GC_PHYS:
3477 case DBGCVAR_TYPE_HC_FLAT:
3478 case DBGCVAR_TYPE_HC_PHYS:
3479 case DBGCVAR_TYPE_NUMBER:
3480 {
3481 uint64_t u64 = paVars[i].u.u64Number;
3482 switch (cbUnit & 0x1f)
3483 {
3484 case 1:
3485 do
3486 {
3487 *u.pu8++ = u64;
3488 u64 >>= 8;
3489 } while (u64);
3490 break;
3491 case 2:
3492 do
3493 {
3494 *u.pu16++ = u64;
3495 u64 >>= 16;
3496 } while (u64);
3497 break;
3498 case 4:
3499 *u.pu32++ = u64;
3500 u64 >>= 32;
3501 if (u64)
3502 *u.pu32++ = u64;
3503 break;
3504 case 8:
3505 *u.pu64++ = u64;
3506 break;
3507 }
3508 break;
3509 }
3510
3511 case DBGCVAR_TYPE_STRING:
3512 case DBGCVAR_TYPE_SYMBOL:
3513 {
3514 const char *psz = paVars[i].u.pszString;
3515 size_t cbString = strlen(psz);
3516 if (cbUnit & RT_BIT_32(31))
3517 {
3518 /* Explode char to unit. */
3519 if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3520 {
3521 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3522 return VERR_TOO_MUCH_DATA;
3523 }
3524 while (*psz)
3525 {
3526 switch (cbUnit & 0x1f)
3527 {
3528 case 1: *u.pu8++ = *psz; break;
3529 case 2: *u.pu16++ = *psz; break;
3530 case 4: *u.pu32++ = *psz; break;
3531 case 8: *u.pu64++ = *psz; break;
3532 }
3533 psz++;
3534 }
3535 }
3536 else
3537 {
3538 /* Raw copy with zero padding if the size isn't aligned. */
3539 if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3540 {
3541 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3542 return VERR_TOO_MUCH_DATA;
3543 }
3544
3545 size_t cbCopy = cbString & ~(cbUnit - 1);
3546 memcpy(u.pu8, psz, cbCopy);
3547 u.pu8 += cbCopy;
3548 psz += cbCopy;
3549
3550 size_t cbReminder = cbString & (cbUnit - 1);
3551 if (cbReminder)
3552 {
3553 memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3554 memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3555 u.pu8 += cbUnit;
3556 }
3557 }
3558 break;
3559 }
3560
3561 default:
3562 *pcbBuf = u.pu8 - (uint8_t *)pvBuf;
3563 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3564 "i=%d enmType=%d\n", i, paVars[i].enmType);
3565 return VERR_INTERNAL_ERROR;
3566 }
3567 }
3568 *pcbBuf = u.pu8 - (uint8_t *)pvBuf;
3569 if (i != cVars)
3570 {
3571 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3572 return VERR_TOO_MUCH_DATA;
3573 }
3574 return VINF_SUCCESS;
3575}
3576
3577
3578/**
3579 * @interface_method_impl{FNDBCCMD, The 'eb', 'ew', 'ed' and 'eq' commands.}
3580 */
3581static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3582{
3583 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3584 unsigned iArg;
3585
3586 /*
3587 * Validate input.
3588 */
3589 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2);
3590 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
3591 for (iArg = 1; iArg < cArgs; iArg++)
3592 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER);
3593 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3594
3595 /*
3596 * Figure out the element size.
3597 */
3598 unsigned cbElement;
3599 switch (pCmd->pszCmd[1])
3600 {
3601 default:
3602 case 'b': cbElement = 1; break;
3603 case 'w': cbElement = 2; break;
3604 case 'd': cbElement = 4; break;
3605 case 'q': cbElement = 8; break;
3606 }
3607
3608 /*
3609 * Do setting.
3610 */
3611 DBGCVAR Addr = paArgs[0];
3612 for (iArg = 1;;)
3613 {
3614 size_t cbWritten;
3615 int rc = pCmdHlp->pfnMemWrite(pCmdHlp, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3616 if (RT_FAILURE(rc))
3617 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3618 if (cbWritten != cbElement)
3619 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3620
3621 /* advance. */
3622 iArg++;
3623 if (iArg >= cArgs)
3624 break;
3625 rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3626 if (RT_FAILURE(rc))
3627 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3628 }
3629
3630 return VINF_SUCCESS;
3631}
3632
3633
3634/**
3635 * Executes the search.
3636 *
3637 * @returns VBox status code.
3638 * @param pCmdHlp The command helpers.
3639 * @param pUVM The user mode VM handle.
3640 * @param pAddress The address to start searching from. (undefined on output)
3641 * @param cbRange The address range to search. Must not wrap.
3642 * @param pabBytes The byte pattern to search for.
3643 * @param cbBytes The size of the pattern.
3644 * @param cbUnit The search unit.
3645 * @param cMaxHits The max number of hits.
3646 * @param pResult Where to store the result if it's a function invocation.
3647 */
3648static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3649 const uint8_t *pabBytes, uint32_t cbBytes,
3650 uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3651{
3652 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3653
3654 /*
3655 * Do the search.
3656 */
3657 uint64_t cHits = 0;
3658 for (;;)
3659 {
3660 /* search */
3661 DBGFADDRESS HitAddress;
3662 int rc = DBGFR3MemScan(pUVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3663 if (RT_FAILURE(rc))
3664 {
3665 if (rc != VERR_DBGF_MEM_NOT_FOUND)
3666 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3667
3668 /* update the current address so we can save it (later). */
3669 pAddress->off += cbRange;
3670 pAddress->FlatPtr += cbRange;
3671 cbRange = 0;
3672 break;
3673 }
3674
3675 /* report result */
3676 DBGCVAR VarCur;
3677 rc = DBGCCmdHlpVarFromDbgfAddr(pCmdHlp, &HitAddress, &VarCur);
3678 if (RT_FAILURE(rc))
3679 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGCCmdHlpVarFromDbgfAddr\n");
3680 if (!pResult)
3681 pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3682 else
3683 DBGCVAR_ASSIGN(pResult, &VarCur);
3684
3685 /* advance */
3686 cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3687 *pAddress = HitAddress;
3688 pAddress->FlatPtr += cbBytes;
3689 pAddress->off += cbBytes;
3690 if (cbRange <= cbBytes)
3691 {
3692 cbRange = 0;
3693 break;
3694 }
3695 cbRange -= cbBytes;
3696
3697 if (++cHits >= cMaxHits)
3698 {
3699 /// @todo save the search.
3700 break;
3701 }
3702 }
3703
3704 /*
3705 * Save the search so we can resume it...
3706 */
3707 if (pDbgc->abSearch != pabBytes)
3708 {
3709 memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3710 pDbgc->cbSearch = cbBytes;
3711 pDbgc->cbSearchUnit = cbUnit;
3712 }
3713 pDbgc->cMaxSearchHits = cMaxHits;
3714 pDbgc->SearchAddr = *pAddress;
3715 pDbgc->cbSearchRange = cbRange;
3716
3717 return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3718}
3719
3720
3721/**
3722 * Resumes the previous search.
3723 *
3724 * @returns VBox status code.
3725 * @param pCmdHlp Pointer to the command helper functions.
3726 * @param pUVM The user mode VM handle.
3727 * @param pResult Where to store the result of a function invocation.
3728 */
3729static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGCVAR pResult)
3730{
3731 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3732
3733 /*
3734 * Make sure there is a previous command.
3735 */
3736 if (!pDbgc->cbSearch)
3737 {
3738 DBGCCmdHlpPrintf(pCmdHlp, "Error: No previous search\n");
3739 return VERR_DBGC_COMMAND_FAILED;
3740 }
3741
3742 /*
3743 * Make range and address adjustments.
3744 */
3745 DBGFADDRESS Address = pDbgc->SearchAddr;
3746 if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3747 {
3748 Address.FlatPtr -= Address.off;
3749 Address.off = 0;
3750 }
3751
3752 RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3753 if (!cbRange)
3754 cbRange = ~(RTGCUINTPTR)0;
3755 if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3756 cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3757
3758 return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3759 pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3760}
3761
3762
3763/**
3764 * Search memory, worker for the 's' and 's?' functions.
3765 *
3766 * @returns VBox status.
3767 * @param pCmdHlp Pointer to the command helper functions.
3768 * @param pUVM The user mode VM handle.
3769 * @param pAddress Where to start searching. If no range, search till end of address space.
3770 * @param cMaxHits The maximum number of hits.
3771 * @param chType The search type.
3772 * @param paPatArgs The pattern variable array.
3773 * @param cPatArgs Number of pattern variables.
3774 * @param pResult Where to store the result of a function invocation.
3775 */
3776static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3777 PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3778{
3779 if (pResult)
3780 DBGCVAR_INIT_GC_FLAT(pResult, 0);
3781
3782 /*
3783 * Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3784 */
3785 uint32_t cbUnit;
3786 switch (chType)
3787 {
3788 case 'a':
3789 case 'b': cbUnit = 1; break;
3790 case 'u': cbUnit = 2 | RT_BIT_32(31); break;
3791 case 'w': cbUnit = 2; break;
3792 case 'd': cbUnit = 4; break;
3793 case 'q': cbUnit = 8; break;
3794 default:
3795 return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3796 }
3797 uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3798 uint32_t cbBytes = sizeof(abBytes);
3799 int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3800 if (RT_FAILURE(rc))
3801 return VERR_DBGC_COMMAND_FAILED;
3802
3803 /*
3804 * Make DBGF address and fix the range.
3805 */
3806 DBGFADDRESS Address;
3807 rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3808 if (RT_FAILURE(rc))
3809 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3810
3811 RTGCUINTPTR cbRange;
3812 switch (pAddress->enmRangeType)
3813 {
3814 case DBGCVAR_RANGE_BYTES:
3815 cbRange = pAddress->u64Range;
3816 if (cbRange != pAddress->u64Range)
3817 cbRange = ~(RTGCUINTPTR)0;
3818 break;
3819
3820 case DBGCVAR_RANGE_ELEMENTS:
3821 cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3822 if ( cbRange != pAddress->u64Range * cbUnit
3823 || cbRange < pAddress->u64Range)
3824 cbRange = ~(RTGCUINTPTR)0;
3825 break;
3826
3827 default:
3828 cbRange = ~(RTGCUINTPTR)0;
3829 break;
3830 }
3831 if (Address.FlatPtr + cbRange < Address.FlatPtr)
3832 cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3833
3834 /*
3835 * Ok, do it.
3836 */
3837 return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3838}
3839
3840
3841/**
3842 * @interface_method_impl{FNDBCCMD, The 's' command.}
3843 */
3844static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3845{
3846 /* check that the parser did what it's supposed to do. */
3847 //if ( cArgs <= 2
3848 // && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3849 // return DBGCCmdHlpPrintf(pCmdHlp, "parser error\n");
3850
3851 /*
3852 * Repeat previous search?
3853 */
3854 if (cArgs == 0)
3855 return dbgcCmdWorkerSearchMemResume(pCmdHlp, pUVM, NULL);
3856
3857 /*
3858 * Parse arguments.
3859 */
3860
3861 return -1;
3862}
3863
3864
3865/**
3866 * @interface_method_impl{FNDBCCMD, The 's?' command.}
3867 */
3868static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3869{
3870 /* check that the parser did what it's supposed to do. */
3871 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2 && DBGCVAR_ISGCPOINTER(paArgs[0].enmType));
3872 return dbgcCmdWorkerSearchMem(pCmdHlp, pUVM, &paArgs[0], 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, NULL);
3873}
3874
3875
3876/**
3877 * List near symbol.
3878 *
3879 * @returns VBox status code.
3880 * @param pCmdHlp Pointer to command helper functions.
3881 * @param pUVM The user mode VM handle.
3882 * @param pArg Pointer to the address or symbol to lookup.
3883 */
3884static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pArg)
3885{
3886 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3887
3888 RTDBGSYMBOL Symbol;
3889 int rc;
3890 if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
3891 {
3892 /*
3893 * Lookup the symbol address.
3894 */
3895 rc = DBGFR3AsSymbolByName(pUVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
3896 if (RT_FAILURE(rc))
3897 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
3898
3899 rc = DBGCCmdHlpPrintf(pCmdHlp, "%RTptr %s\n", Symbol.Value, Symbol.szName);
3900 }
3901 else
3902 {
3903 /*
3904 * Convert it to a flat GC address and lookup that address.
3905 */
3906 DBGCVAR AddrVar;
3907 rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
3908 if (RT_FAILURE(rc))
3909 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
3910
3911 RTINTPTR offDisp;
3912 DBGFADDRESS Addr;
3913 rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, AddrVar.u.GCFlat),
3914 RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &offDisp, &Symbol, NULL);
3915 if (RT_FAILURE(rc))
3916 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
3917
3918 if (!offDisp)
3919 rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s", &AddrVar, Symbol.szName);
3920 else if (offDisp > 0)
3921 rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
3922 else
3923 rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
3924 if (Symbol.cb > 0)
3925 rc = DBGCCmdHlpPrintf(pCmdHlp, " (LB %RGv)\n", Symbol.cb);
3926 else
3927 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3928 }
3929
3930 return rc;
3931}
3932
3933
3934/**
3935 * @interface_method_impl{FNDBCCMD, The 'ln' (listnear) command.}
3936 */
3937static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3938{
3939 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3940 if (!cArgs)
3941 {
3942 /*
3943 * Current cs:eip symbol.
3944 */
3945 DBGCVAR AddrVar;
3946 const char *pszFmtExpr = pDbgc->fRegCtxGuest ? "%%(cs:eip)" : "%%(.cs:.eip)";
3947 int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, pszFmtExpr);
3948 if (RT_FAILURE(rc))
3949 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%s\n", pszFmtExpr + 1);
3950 return dbgcDoListNear(pCmdHlp, pUVM, &AddrVar);
3951 }
3952
3953/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
3954 /*
3955 * Iterate arguments.
3956 */
3957 for (unsigned iArg = 0; iArg < cArgs; iArg++)
3958 {
3959 int rc = dbgcDoListNear(pCmdHlp, pUVM, &paArgs[iArg]);
3960 if (RT_FAILURE(rc))
3961 return rc;
3962 }
3963
3964 NOREF(pCmd);
3965 return VINF_SUCCESS;
3966}
3967
3968
3969/**
3970 * Matches the module patters against a module name.
3971 *
3972 * @returns true if matching, otherwise false.
3973 * @param pszName The module name.
3974 * @param paArgs The module pattern argument list.
3975 * @param cArgs Number of arguments.
3976 */
3977static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
3978{
3979 for (uint32_t i = 0; i < cArgs; i++)
3980 if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
3981 return true;
3982 return false;
3983}
3984
3985
3986/**
3987 * @interface_method_impl{FNDBCCMD, The 'ln' (list near) command.}
3988 */
3989static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3990{
3991 bool const fMappings = pCmd->pszCmd[2] == 'o';
3992 bool const fVerbose = pCmd->pszCmd[strlen(pCmd->pszCmd) - 1] == 'v';
3993 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3994
3995 /*
3996 * Iterate the modules in the current address space and print info about
3997 * those matching the input.
3998 */
3999 RTDBGAS hAs = DBGFR3AsResolveAndRetain(pUVM, pDbgc->hDbgAs);
4000 uint32_t cMods = RTDbgAsModuleCount(hAs);
4001 for (uint32_t iMod = 0; iMod < cMods; iMod++)
4002 {
4003 RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
4004 if (hMod != NIL_RTDBGMOD)
4005 {
4006 bool const fDeferred = RTDbgModIsDeferred(hMod);
4007 bool const fExports = RTDbgModIsExports(hMod);
4008 uint32_t const cSegs = fDeferred ? 1 : RTDbgModSegmentCount(hMod);
4009 const char * const pszName = RTDbgModName(hMod);
4010 const char * const pszImgFile = RTDbgModImageFile(hMod);
4011 const char * const pszImgFileUsed = RTDbgModImageFileUsed(hMod);
4012 const char * const pszDbgFile = RTDbgModDebugFile(hMod);
4013 if ( cArgs == 0
4014 || dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
4015 {
4016 /*
4017 * Find the mapping with the lower address, preferring a full
4018 * image mapping, for the main line.
4019 */
4020 RTDBGASMAPINFO aMappings[128];
4021 uint32_t cMappings = RT_ELEMENTS(aMappings);
4022 int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /*fFlags*/);
4023 if (RT_SUCCESS(rc))
4024 {
4025 bool fFull = false;
4026 RTUINTPTR uMin = RTUINTPTR_MAX;
4027 for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4028 if ( aMappings[iMap].Address < uMin
4029 && ( !fFull
4030 || aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4031 uMin = aMappings[iMap].Address;
4032 if (!fVerbose || !pszImgFile)
4033 DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName,
4034 fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4035 else
4036 DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %-12s %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName, pszImgFile,
4037 fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4038 if (fVerbose && pszImgFileUsed)
4039 DBGCCmdHlpPrintf(pCmdHlp, " Local image: %s\n", pszImgFileUsed);
4040 if (fVerbose && pszDbgFile)
4041 DBGCCmdHlpPrintf(pCmdHlp, " Debug file: %s\n", pszDbgFile);
4042
4043 if (fMappings)
4044 {
4045 /* sort by address first - not very efficient. */
4046 for (uint32_t i = 0; i + 1 < cMappings; i++)
4047 for (uint32_t j = i + 1; j < cMappings; j++)
4048 if (aMappings[j].Address < aMappings[i].Address)
4049 {
4050 RTDBGASMAPINFO Tmp = aMappings[j];
4051 aMappings[j] = aMappings[i];
4052 aMappings[i] = Tmp;
4053 }
4054
4055 /* print */
4056 if ( cMappings == 1
4057 && aMappings[0].iSeg == NIL_RTDBGSEGIDX
4058 && !fDeferred)
4059 {
4060 for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
4061 {
4062 RTDBGSEGMENT SegInfo;
4063 rc = RTDbgModSegmentByIndex(hMod, iSeg, &SegInfo);
4064 if (RT_SUCCESS(rc))
4065 {
4066 if (SegInfo.uRva != RTUINTPTR_MAX)
4067 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4068 (RTGCUINTPTR)(aMappings[0].Address + SegInfo.uRva),
4069 (RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4070 else
4071 DBGCCmdHlpPrintf(pCmdHlp, " %*s %RGv #%02x %s\n",
4072 sizeof(RTGCUINTPTR)*2, "noload",
4073 (RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4074 }
4075 else
4076 DBGCCmdHlpPrintf(pCmdHlp, " Error query segment #%u: %Rrc\n", iSeg, rc);
4077 }
4078 }
4079 else
4080 {
4081 for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4082 if (aMappings[iMap].iSeg == NIL_RTDBGSEGIDX)
4083 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4084 (RTGCUINTPTR)aMappings[iMap].Address,
4085 (RTGCUINTPTR)RTDbgModImageSize(hMod));
4086 else if (!fDeferred)
4087 {
4088 RTDBGSEGMENT SegInfo;
4089 rc = RTDbgModSegmentByIndex(hMod, aMappings[iMap].iSeg, &SegInfo);
4090 if (RT_FAILURE(rc))
4091 {
4092 RT_ZERO(SegInfo);
4093 strcpy(SegInfo.szName, "error");
4094 }
4095 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4096 (RTGCUINTPTR)aMappings[iMap].Address,
4097 (RTGCUINTPTR)SegInfo.cb,
4098 aMappings[iMap].iSeg, SegInfo.szName);
4099 }
4100 else
4101 DBGCCmdHlpPrintf(pCmdHlp, " %RGv #%02x\n",
4102 (RTGCUINTPTR)aMappings[iMap].Address, aMappings[iMap].iSeg);
4103 }
4104 }
4105 }
4106 else
4107 DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4108 sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4109 /** @todo missing address space API for enumerating the mappings. */
4110 }
4111 RTDbgModRelease(hMod);
4112 }
4113 }
4114 RTDbgAsRelease(hAs);
4115
4116 NOREF(pCmd);
4117 return VINF_SUCCESS;
4118}
4119
4120
4121
4122/**
4123 * @callback_method_impl{Reads a unsigned 8-bit value.}
4124 */
4125static DECLCALLBACK(int) dbgcFuncReadU8(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4126 PDBGCVAR pResult)
4127{
4128 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4129 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4130 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4131
4132 uint8_t b;
4133 int rc = DBGCCmdHlpMemRead(pCmdHlp, &b, sizeof(b), &paArgs[0], NULL);
4134 if (RT_FAILURE(rc))
4135 return rc;
4136 DBGCVAR_INIT_NUMBER(pResult, b);
4137
4138 NOREF(pFunc);
4139 return VINF_SUCCESS;
4140}
4141
4142
4143/**
4144 * @callback_method_impl{Reads a unsigned 16-bit value.}
4145 */
4146static DECLCALLBACK(int) dbgcFuncReadU16(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4147 PDBGCVAR pResult)
4148{
4149 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4150 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4151 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4152
4153 uint16_t u16;
4154 int rc = DBGCCmdHlpMemRead(pCmdHlp, &u16, sizeof(u16), &paArgs[0], NULL);
4155 if (RT_FAILURE(rc))
4156 return rc;
4157 DBGCVAR_INIT_NUMBER(pResult, u16);
4158
4159 NOREF(pFunc);
4160 return VINF_SUCCESS;
4161}
4162
4163
4164/**
4165 * @callback_method_impl{Reads a unsigned 32-bit value.}
4166 */
4167static DECLCALLBACK(int) dbgcFuncReadU32(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4168 PDBGCVAR pResult)
4169{
4170 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4171 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4172 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4173
4174 uint32_t u32;
4175 int rc = DBGCCmdHlpMemRead(pCmdHlp, &u32, sizeof(u32), &paArgs[0], NULL);
4176 if (RT_FAILURE(rc))
4177 return rc;
4178 DBGCVAR_INIT_NUMBER(pResult, u32);
4179
4180 NOREF(pFunc);
4181 return VINF_SUCCESS;
4182}
4183
4184
4185/**
4186 * @callback_method_impl{Reads a unsigned 64-bit value.}
4187 */
4188static DECLCALLBACK(int) dbgcFuncReadU64(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4189 PDBGCVAR pResult)
4190{
4191 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4192 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4193 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4194
4195 uint64_t u64;
4196 int rc = DBGCCmdHlpMemRead(pCmdHlp, &u64, sizeof(u64), &paArgs[0], NULL);
4197 if (RT_FAILURE(rc))
4198 return rc;
4199 DBGCVAR_INIT_NUMBER(pResult, u64);
4200
4201 NOREF(pFunc);
4202 return VINF_SUCCESS;
4203}
4204
4205
4206/**
4207 * @callback_method_impl{Reads a unsigned pointer-sized value.}
4208 */
4209static DECLCALLBACK(int) dbgcFuncReadPtr(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4210 PDBGCVAR pResult)
4211{
4212 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4213 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4214 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4215
4216 CPUMMODE enmMode = DBGCCmdHlpGetCpuMode(pCmdHlp);
4217 if (enmMode == CPUMMODE_LONG)
4218 return dbgcFuncReadU64(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4219 return dbgcFuncReadU32(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4220}
4221
4222
4223/**
4224 * @callback_method_impl{The hi(value) function implementation.}
4225 */
4226static DECLCALLBACK(int) dbgcFuncHi(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4227 PDBGCVAR pResult)
4228{
4229 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4230
4231 uint16_t uHi;
4232 switch (paArgs[0].enmType)
4233 {
4234 case DBGCVAR_TYPE_GC_FLAT: uHi = (uint16_t)(paArgs[0].u.GCFlat >> 16); break;
4235 case DBGCVAR_TYPE_GC_FAR: uHi = (uint16_t)paArgs[0].u.GCFar.sel; break;
4236 case DBGCVAR_TYPE_GC_PHYS: uHi = (uint16_t)(paArgs[0].u.GCPhys >> 16); break;
4237 case DBGCVAR_TYPE_HC_FLAT: uHi = (uint16_t)((uintptr_t)paArgs[0].u.pvHCFlat >> 16); break;
4238 case DBGCVAR_TYPE_HC_PHYS: uHi = (uint16_t)(paArgs[0].u.HCPhys >> 16); break;
4239 case DBGCVAR_TYPE_NUMBER: uHi = (uint16_t)(paArgs[0].u.u64Number >> 16); break;
4240 default:
4241 AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4242 }
4243 DBGCVAR_INIT_NUMBER(pResult, uHi);
4244 DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4245
4246 NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4247 return VINF_SUCCESS;
4248}
4249
4250
4251/**
4252 * @callback_method_impl{The low(value) function implementation.}
4253 */
4254static DECLCALLBACK(int) dbgcFuncLow(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4255 PDBGCVAR pResult)
4256{
4257 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4258
4259 uint16_t uLow;
4260 switch (paArgs[0].enmType)
4261 {
4262 case DBGCVAR_TYPE_GC_FLAT: uLow = (uint16_t)paArgs[0].u.GCFlat; break;
4263 case DBGCVAR_TYPE_GC_FAR: uLow = (uint16_t)paArgs[0].u.GCFar.off; break;
4264 case DBGCVAR_TYPE_GC_PHYS: uLow = (uint16_t)paArgs[0].u.GCPhys; break;
4265 case DBGCVAR_TYPE_HC_FLAT: uLow = (uint16_t)(uintptr_t)paArgs[0].u.pvHCFlat; break;
4266 case DBGCVAR_TYPE_HC_PHYS: uLow = (uint16_t)paArgs[0].u.HCPhys; break;
4267 case DBGCVAR_TYPE_NUMBER: uLow = (uint16_t)paArgs[0].u.u64Number; break;
4268 default:
4269 AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4270 }
4271 DBGCVAR_INIT_NUMBER(pResult, uLow);
4272 DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4273
4274 NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4275 return VINF_SUCCESS;
4276}
4277
4278
4279/**
4280 * @callback_method_impl{The low(value) function implementation.}
4281 */
4282static DECLCALLBACK(int) dbgcFuncNot(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4283 PDBGCVAR pResult)
4284{
4285 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4286 NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4287 return DBGCCmdHlpEval(pCmdHlp, pResult, "!(%Dv)", &paArgs[0]);
4288}
4289
4290
4291/** Generic pointer argument wo/ range. */
4292static const DBGCVARDESC g_aArgPointerWoRange[] =
4293{
4294 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4295 { 1, 1, DBGCVAR_CAT_POINTER_NO_RANGE, 0, "value", "Address or number." },
4296};
4297
4298/** Generic pointer or number argument. */
4299static const DBGCVARDESC g_aArgPointerNumber[] =
4300{
4301 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4302 { 1, 1, DBGCVAR_CAT_POINTER_NUMBER, 0, "value", "Address or number." },
4303};
4304
4305
4306
4307/** Function descriptors for the CodeView / WinDbg emulation.
4308 * The emulation isn't attempting to be identical, only somewhat similar.
4309 */
4310const DBGCFUNC g_aFuncsCodeView[] =
4311{
4312 { "by", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU8, "address", "Reads a byte at the given address." },
4313 { "dwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU32, "address", "Reads a 32-bit value at the given address." },
4314 { "hi", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncHi, "value", "Returns the high 16-bit bits of a value." },
4315 { "low", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncLow, "value", "Returns the low 16-bit bits of a value." },
4316 { "not", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncNot, "address", "Boolean NOT." },
4317 { "poi", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadPtr, "address", "Reads a pointer sized (CS) value at the given address." },
4318 { "qwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU64, "address", "Reads a 32-bit value at the given address." },
4319 { "wo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU16, "address", "Reads a 16-bit value at the given address." },
4320};
4321
4322/** The number of functions in the CodeView/WinDbg emulation. */
4323const uint32_t g_cFuncsCodeView = RT_ELEMENTS(g_aFuncsCodeView);
4324
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