VirtualBox

source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 46221

Last change on this file since 46221 was 46221, checked in by vboxsync, 12 years ago

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1/* $Id: DBGCEmulateCodeView.cpp 46221 2013-05-22 15:30:41Z 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. */
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 }
955
956 if (pDbgc->fRegCtxGuest)
957 fFlags |= DBGF_DISAS_FLAGS_CURRENT_GUEST;
958 else
959 fFlags |= DBGF_DISAS_FLAGS_CURRENT_HYPER | DBGF_DISAS_FLAGS_HYPER;
960 }
961 pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
962 }
963 else
964 pDbgc->DisasmPos = paArgs[0];
965 pDbgc->pLastPos = &pDbgc->DisasmPos;
966
967 /*
968 * Range.
969 */
970 switch (pDbgc->DisasmPos.enmRangeType)
971 {
972 case DBGCVAR_RANGE_NONE:
973 pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
974 pDbgc->DisasmPos.u64Range = 10;
975 break;
976
977 case DBGCVAR_RANGE_ELEMENTS:
978 if (pDbgc->DisasmPos.u64Range > 2048)
979 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Too many lines requested. Max is 2048 lines");
980 break;
981
982 case DBGCVAR_RANGE_BYTES:
983 if (pDbgc->DisasmPos.u64Range > 65536)
984 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The requested range is too big. Max is 64KB");
985 break;
986
987 default:
988 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown range type %d", pDbgc->DisasmPos.enmRangeType);
989 }
990
991 /*
992 * Convert physical and host addresses to guest addresses.
993 */
994 RTDBGAS hDbgAs = pDbgc->hDbgAs;
995 int rc;
996 switch (pDbgc->DisasmPos.enmType)
997 {
998 case DBGCVAR_TYPE_GC_FLAT:
999 case DBGCVAR_TYPE_GC_FAR:
1000 break;
1001 case DBGCVAR_TYPE_GC_PHYS:
1002 hDbgAs = DBGF_AS_PHYS;
1003 case DBGCVAR_TYPE_HC_FLAT:
1004 case DBGCVAR_TYPE_HC_PHYS:
1005 {
1006 DBGCVAR VarTmp;
1007 rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1008 if (RT_FAILURE(rc))
1009 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "failed to evaluate '%%(%Dv)'", &pDbgc->DisasmPos);
1010 pDbgc->DisasmPos = VarTmp;
1011 break;
1012 }
1013 default: AssertFailed(); break;
1014 }
1015
1016 DBGFADDRESS CurAddr;
1017 rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1018 if (RT_FAILURE(rc))
1019 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr failed on '%Dv'", &pDbgc->DisasmPos);
1020
1021 if (CurAddr.fFlags & DBGFADDRESS_FLAGS_HMA)
1022 fFlags |= DBGF_DISAS_FLAGS_HYPER; /* This crap is due to not using DBGFADDRESS as DBGFR3Disas* input. */
1023
1024 /*
1025 * Figure out where we are and display it. Also calculate when we need to
1026 * check for a new symbol if possible.
1027 */
1028 RTGCUINTPTR cbCheckSymbol;
1029 dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1030
1031 /*
1032 * Do the disassembling.
1033 */
1034 unsigned cTries = 32;
1035 int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1036 if (iRangeLeft == 0) /* kludge for 'r'. */
1037 iRangeLeft = -1;
1038 for (;;)
1039 {
1040 /*
1041 * Disassemble the instruction.
1042 */
1043 char szDis[256];
1044 uint32_t cbInstr = 1;
1045 if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1046 rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1047 &szDis[0], sizeof(szDis), &cbInstr);
1048 else
1049 rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1050 &szDis[0], sizeof(szDis), &cbInstr);
1051 if (RT_SUCCESS(rc))
1052 {
1053 /* print it */
1054 rc = DBGCCmdHlpPrintf(pCmdHlp, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1055 if (RT_FAILURE(rc))
1056 return rc;
1057 }
1058 else
1059 {
1060 /* bitch. */
1061 int rc2 = DBGCCmdHlpPrintf(pCmdHlp, "Failed to disassemble instruction, skipping one byte.\n");
1062 if (RT_FAILURE(rc2))
1063 return rc2;
1064 if (cTries-- > 0)
1065 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Too many disassembly failures. Giving up");
1066 cbInstr = 1;
1067 }
1068
1069 /* advance */
1070 if (iRangeLeft < 0) /* 'r' */
1071 break;
1072 if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1073 iRangeLeft--;
1074 else
1075 iRangeLeft -= cbInstr;
1076 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1077 if (RT_FAILURE(rc))
1078 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpEval(,,'(%Dv) + %x')", &pDbgc->DisasmPos, cbInstr);
1079 if (iRangeLeft <= 0)
1080 break;
1081 fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST | DBGF_DISAS_FLAGS_CURRENT_HYPER);
1082
1083 /* Print next symbol? */
1084 if (cbCheckSymbol <= cbInstr)
1085 {
1086 rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1087 if (RT_SUCCESS(rc))
1088 dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1089 else
1090 cbCheckSymbol = UINT32_MAX;
1091 }
1092 else
1093 cbCheckSymbol -= cbInstr;
1094 }
1095
1096 NOREF(pCmd);
1097 return VINF_SUCCESS;
1098}
1099
1100
1101/**
1102 * @interface_method_impl{FNDBCCMD, The 'ls' command.}
1103 */
1104static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1105{
1106 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1107
1108 /*
1109 * Validate input.
1110 */
1111 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
1112 if (cArgs == 1)
1113 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
1114 if (!pUVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1115 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start listing...");
1116 if (!pUVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1117 return DBGCCmdHlpFail(pCmdHlp, pCmd, "GC address but no VM");
1118
1119 /*
1120 * Find address.
1121 */
1122 if (!cArgs)
1123 {
1124 if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1125 {
1126 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1127 pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1128 pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1129 pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1130 }
1131 pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1132 }
1133 else
1134 pDbgc->SourcePos = paArgs[0];
1135 pDbgc->pLastPos = &pDbgc->SourcePos;
1136
1137 /*
1138 * Ensure the source address is flat GC.
1139 */
1140 switch (pDbgc->SourcePos.enmType)
1141 {
1142 case DBGCVAR_TYPE_GC_FLAT:
1143 break;
1144 case DBGCVAR_TYPE_GC_PHYS:
1145 case DBGCVAR_TYPE_GC_FAR:
1146 case DBGCVAR_TYPE_HC_FLAT:
1147 case DBGCVAR_TYPE_HC_PHYS:
1148 {
1149 int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1150 if (RT_FAILURE(rc))
1151 return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid address or address type. (rc=%d)\n", rc);
1152 break;
1153 }
1154 default: AssertFailed(); break;
1155 }
1156
1157 /*
1158 * Range.
1159 */
1160 switch (pDbgc->SourcePos.enmRangeType)
1161 {
1162 case DBGCVAR_RANGE_NONE:
1163 pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1164 pDbgc->SourcePos.u64Range = 10;
1165 break;
1166
1167 case DBGCVAR_RANGE_ELEMENTS:
1168 if (pDbgc->SourcePos.u64Range > 2048)
1169 return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many lines requested. Max is 2048 lines.\n");
1170 break;
1171
1172 case DBGCVAR_RANGE_BYTES:
1173 if (pDbgc->SourcePos.u64Range > 65536)
1174 return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
1175 break;
1176
1177 default:
1178 return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1179 }
1180
1181 /*
1182 * Do the disassembling.
1183 */
1184 bool fFirst = 1;
1185 RTDBGLINE LinePrev = { 0, 0, 0, 0, 0, "" };
1186 int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1187 if (iRangeLeft == 0) /* kludge for 'r'. */
1188 iRangeLeft = -1;
1189 for (;;)
1190 {
1191 /*
1192 * Get line info.
1193 */
1194 RTDBGLINE Line;
1195 RTGCINTPTR off;
1196 DBGFADDRESS SourcePosAddr;
1197 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->SourcePos, &SourcePosAddr);
1198 if (RT_FAILURE(rc))
1199 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%Dv)", &pDbgc->SourcePos);
1200 rc = DBGFR3AsLineByAddr(pUVM, pDbgc->hDbgAs, &SourcePosAddr, &off, &Line, NULL);
1201 if (RT_FAILURE(rc))
1202 return VINF_SUCCESS;
1203
1204 unsigned cLines = 0;
1205 if (memcmp(&Line, &LinePrev, sizeof(Line)))
1206 {
1207 /*
1208 * Print filenamename
1209 */
1210 if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1211 fFirst = true;
1212 if (fFirst)
1213 {
1214 rc = DBGCCmdHlpPrintf(pCmdHlp, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1215 if (RT_FAILURE(rc))
1216 return rc;
1217 }
1218
1219 /*
1220 * Try open the file and read the line.
1221 */
1222 FILE *phFile = fopen(Line.szFilename, "r");
1223 if (phFile)
1224 {
1225 /* Skip ahead to the desired line. */
1226 char szLine[4096];
1227 unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1228 if (cBefore > 7)
1229 cBefore = 0;
1230 unsigned cLeft = Line.uLineNo - cBefore;
1231 while (cLeft > 0)
1232 {
1233 szLine[0] = '\0';
1234 if (!fgets(szLine, sizeof(szLine), phFile))
1235 break;
1236 cLeft--;
1237 }
1238 if (!cLeft)
1239 {
1240 /* print the before lines */
1241 for (;;)
1242 {
1243 size_t cch = strlen(szLine);
1244 while (cch > 0 && (szLine[cch - 1] == '\r' || szLine[cch - 1] == '\n' || RT_C_IS_SPACE(szLine[cch - 1])) )
1245 szLine[--cch] = '\0';
1246 if (cBefore-- <= 0)
1247 break;
1248
1249 rc = DBGCCmdHlpPrintf(pCmdHlp, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1250 szLine[0] = '\0';
1251 fgets(szLine, sizeof(szLine), phFile);
1252 cLines++;
1253 }
1254 /* print the actual line */
1255 rc = DBGCCmdHlpPrintf(pCmdHlp, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1256 }
1257 fclose(phFile);
1258 if (RT_FAILURE(rc))
1259 return rc;
1260 fFirst = false;
1261 }
1262 else
1263 return DBGCCmdHlpPrintf(pCmdHlp, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1264
1265 LinePrev = Line;
1266 }
1267
1268
1269 /*
1270 * Advance
1271 */
1272 if (iRangeLeft < 0) /* 'r' */
1273 break;
1274 if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1275 iRangeLeft -= cLines;
1276 else
1277 iRangeLeft -= 1;
1278 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1279 if (RT_FAILURE(rc))
1280 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1281 if (iRangeLeft <= 0)
1282 break;
1283 }
1284
1285 NOREF(pCmd);
1286 return 0;
1287}
1288
1289
1290/**
1291 * @interface_method_impl{FNDBCCMD, The 'r' command.}
1292 */
1293static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1294{
1295 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1296 if (!pDbgc->fRegCtxGuest)
1297 return dbgcCmdRegHyper(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1298 return dbgcCmdRegGuest(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1299}
1300
1301
1302/**
1303 * @interface_method_impl{FNDBCCMD, Common worker for the dbgcCmdReg*()
1304 * commands.}
1305 */
1306static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs,
1307 const char *pszPrefix)
1308{
1309 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1310 Assert(cArgs == 1 || cArgs == 2); /* cArgs == 0 is handled by the caller */
1311 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1 || cArgs == 2);
1312 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_STRING
1313 || paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL);
1314
1315 /*
1316 * Parse the register name and kind.
1317 */
1318 const char *pszReg = paArgs[0].u.pszString;
1319 if (*pszReg == '@')
1320 pszReg++;
1321 VMCPUID idCpu = pDbgc->idCpu;
1322 if (*pszPrefix)
1323 idCpu |= DBGFREG_HYPER_VMCPUID;
1324 if (*pszReg == '.')
1325 {
1326 pszReg++;
1327 idCpu |= DBGFREG_HYPER_VMCPUID;
1328 }
1329 const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1330
1331 /*
1332 * Query the register type & value (the setter needs the type).
1333 */
1334 DBGFREGVALTYPE enmType;
1335 DBGFREGVAL Value;
1336 int rc = DBGFR3RegNmQuery(pUVM, idCpu, pszReg, &Value, &enmType);
1337 if (RT_FAILURE(rc))
1338 {
1339 if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1340 return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1341 pszActualPrefix, pszReg);
1342 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1343 pszActualPrefix, pszReg, rc);
1344 }
1345 if (cArgs == 1)
1346 {
1347 /*
1348 * Show the register.
1349 */
1350 char szValue[160];
1351 rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /*fSpecial*/);
1352 if (RT_SUCCESS(rc))
1353 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1354 else
1355 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1356 }
1357 else if (cArgs == 2)
1358 {
1359 /*
1360 * Modify the register.
1361 */
1362 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 1, paArgs[1].enmType == DBGCVAR_TYPE_STRING
1363 || paArgs[1].enmType == DBGCVAR_TYPE_SYMBOL);
1364 if (enmType != DBGFREGVALTYPE_DTR)
1365 {
1366 enmType = DBGFREGVALTYPE_U64;
1367 rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.u64);
1368 }
1369 else
1370 {
1371 enmType = DBGFREGVALTYPE_DTR;
1372 rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.dtr.u64Base);
1373 if (RT_SUCCESS(rc) && paArgs[1].enmRangeType != DBGCVAR_RANGE_NONE)
1374 Value.dtr.u32Limit = (uint32_t)paArgs[1].u64Range;
1375 }
1376 if (RT_SUCCESS(rc))
1377 {
1378 rc = DBGFR3RegNmSet(pUVM, idCpu, pszReg, &Value, enmType);
1379 if (RT_FAILURE(rc))
1380 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1381 pszActualPrefix, pszReg, rc);
1382 }
1383 else
1384 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1385 }
1386 else
1387 {
1388 NOREF(pCmd); NOREF(paArgs);
1389 rc = DBGCCmdHlpPrintf(pCmdHlp, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1390 }
1391 return rc;
1392}
1393
1394
1395/**
1396 * @interface_method_impl{FNDBCCMD,
1397 * The 'rg', 'rg64' and 'rg32' commands, worker for 'r'.}
1398 */
1399static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1400{
1401 /*
1402 * Show all registers our selves.
1403 */
1404 if (cArgs == 0)
1405 {
1406 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1407 bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1408 || ( strcmp(pCmd->pszCmd, "rg32") != 0
1409 && DBGFR3CpuIsIn64BitCode(pUVM, pDbgc->idCpu));
1410 char szDisAndRegs[8192];
1411 int rc;
1412
1413 if (pDbgc->fRegTerse)
1414 {
1415 if (f64BitMode)
1416 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1417 "u %016VR{rip} L 0\n"
1418 "rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1419 "rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1420 "r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1421 "r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1422 "rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1423 "cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1424 else
1425 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1426 "u %04VR{cs}:%08VR{eip} L 0\n"
1427 "eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1428 "eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1429 "cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1430 }
1431 else
1432 {
1433 if (f64BitMode)
1434 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1435 "u %016VR{rip} L 0\n"
1436 "rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1437 "rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1438 "r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1439 "r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1440 "rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1441 "cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1442 "ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1443 "es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1444 "fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1445 "gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1446 "ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1447 "dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1448 "dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1449 "gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1450 "ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1451 "tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1452 " sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1453 " efer=%016VR{efer}\n"
1454 " pat=%016VR{pat}\n"
1455 " sf_mask=%016VR{sf_mask}\n"
1456 "krnl_gs_base=%016VR{krnl_gs_base}\n"
1457 " lstar=%016VR{lstar}\n"
1458 " star=%016VR{star} cstar=%016VR{cstar}\n"
1459 "fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1460 );
1461 else
1462 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1463 "u %04VR{cs}:%08VR{eip} L 0\n"
1464 "eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1465 "eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1466 "cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1467 "ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1468 "es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr7=%08VR{dr7}\n"
1469 "fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr2}\n"
1470 "gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr3} cr4=%08VR{cr4}\n"
1471 "ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1472 "gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1473 "ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1474 "tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1475 "sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1476 "fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1477 );
1478 }
1479 if (RT_FAILURE(rc))
1480 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1481 char *pszRegs = strchr(szDisAndRegs, '\n');
1482 *pszRegs++ = '\0';
1483 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1484
1485 /*
1486 * Disassemble one instruction at cs:[r|e]ip.
1487 */
1488 return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1489 }
1490 return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, "");
1491}
1492
1493
1494/**
1495 * @interface_method_impl{FNDBCCMD, The 'rh' command.}
1496 */
1497static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1498{
1499 /*
1500 * Show all registers our selves.
1501 */
1502 if (cArgs == 0)
1503 {
1504 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1505 char szDisAndRegs[8192];
1506 int rc;
1507
1508 if (pDbgc->fRegTerse)
1509 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu | DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1510 "u %VR{cs}:%VR{eip} L 0\n"
1511 ".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1512 ".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1513 ".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1514 else
1515 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu | DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1516 "u %04VR{cs}:%08VR{eip} L 0\n"
1517 ".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1518 ".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1519 ".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1520 ".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1521 ".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1522 ".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1523 ".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1524 ".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1525 ".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1526 ".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1527 ".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1528 );
1529 if (RT_FAILURE(rc))
1530 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1531 char *pszRegs = strchr(szDisAndRegs, '\n');
1532 *pszRegs++ = '\0';
1533 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1534
1535 /*
1536 * Disassemble one instruction at cs:[r|e]ip.
1537 */
1538 return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1539 }
1540 return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, ".");
1541}
1542
1543
1544/**
1545 * @interface_method_impl{FNDBCCMD, The 'rt' command.}
1546 */
1547static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1548{
1549 NOREF(pCmd); NOREF(pUVM); NOREF(paArgs); NOREF(cArgs);
1550
1551 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1552 pDbgc->fRegTerse = !pDbgc->fRegTerse;
1553 return DBGCCmdHlpPrintf(pCmdHlp, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1554}
1555
1556
1557/**
1558 * @interface_method_impl{FNDBCCMD, The 't' command.}
1559 */
1560static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1561{
1562 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1563
1564 int rc = DBGFR3Step(pUVM, pDbgc->idCpu);
1565 if (RT_SUCCESS(rc))
1566 pDbgc->fReady = false;
1567 else
1568 rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1569
1570 NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
1571 return rc;
1572}
1573
1574
1575/**
1576 * @interface_method_impl{FNDBCCMD, The 'k', 'kg' and 'kh' commands.}
1577 */
1578static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1579{
1580 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1581
1582 /*
1583 * Figure which context we're called for and start walking that stack.
1584 */
1585 int rc;
1586 PCDBGFSTACKFRAME pFirstFrame;
1587 bool const fGuest = pCmd->pszCmd[1] == 'g'
1588 || (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1589 rc = DBGFR3StackWalkBegin(pUVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1590 if (RT_FAILURE(rc))
1591 return DBGCCmdHlpPrintf(pCmdHlp, "Failed to begin stack walk, rc=%Rrc\n", rc);
1592
1593 /*
1594 * Print header.
1595 * 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1596 */
1597 uint32_t fBitFlags = 0;
1598 for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1599 pFrame;
1600 pFrame = DBGFR3StackWalkNext(pFrame))
1601 {
1602 uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT | DBGFSTACKFRAME_FLAGS_32BIT | DBGFSTACKFRAME_FLAGS_64BIT);
1603 if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1604 {
1605 if (fCurBitFlags != fBitFlags)
1606 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1607 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1608 pFrame->AddrFrame.Sel,
1609 (uint16_t)pFrame->AddrFrame.off,
1610 pFrame->AddrReturnFrame.Sel,
1611 (uint16_t)pFrame->AddrReturnFrame.off,
1612 (uint32_t)pFrame->AddrReturnPC.Sel,
1613 (uint32_t)pFrame->AddrReturnPC.off,
1614 pFrame->Args.au32[0],
1615 pFrame->Args.au32[1],
1616 pFrame->Args.au32[2],
1617 pFrame->Args.au32[3]);
1618 }
1619 else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1620 {
1621 if (fCurBitFlags != fBitFlags)
1622 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1623 rc = DBGCCmdHlpPrintf(pCmdHlp, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1624 (uint32_t)pFrame->AddrFrame.off,
1625 (uint32_t)pFrame->AddrReturnFrame.off,
1626 (uint32_t)pFrame->AddrReturnPC.Sel,
1627 (uint32_t)pFrame->AddrReturnPC.off,
1628 pFrame->Args.au32[0],
1629 pFrame->Args.au32[1],
1630 pFrame->Args.au32[2],
1631 pFrame->Args.au32[3]);
1632 }
1633 else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1634 {
1635 if (fCurBitFlags != fBitFlags)
1636 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1637 rc = DBGCCmdHlpPrintf(pCmdHlp, "%016RX64 %04RX16:%016RX64 %016RX64",
1638 (uint64_t)pFrame->AddrFrame.off,
1639 pFrame->AddrReturnFrame.Sel,
1640 (uint64_t)pFrame->AddrReturnFrame.off,
1641 (uint64_t)pFrame->AddrReturnPC.off);
1642 }
1643 if (RT_FAILURE(rc))
1644 break;
1645 if (!pFrame->pSymPC)
1646 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1647 fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1648 ? " %RTsel:%016RGv"
1649 : fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT
1650 ? " %RTsel:%08RGv"
1651 : " %RTsel:%04RGv"
1652 , pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1653 else
1654 {
1655 RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1656 if (offDisp > 0)
1657 rc = DBGCCmdHlpPrintf(pCmdHlp, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1658 else if (offDisp < 0)
1659 rc = DBGCCmdHlpPrintf(pCmdHlp, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1660 else
1661 rc = DBGCCmdHlpPrintf(pCmdHlp, " %s", pFrame->pSymPC->szName);
1662 }
1663 if (RT_SUCCESS(rc) && pFrame->pLinePC)
1664 rc = DBGCCmdHlpPrintf(pCmdHlp, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1665 if (RT_SUCCESS(rc))
1666 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
1667 if (RT_FAILURE(rc))
1668 break;
1669
1670 fBitFlags = fCurBitFlags;
1671 }
1672
1673 DBGFR3StackWalkEnd(pFirstFrame);
1674
1675 NOREF(paArgs); NOREF(cArgs);
1676 return rc;
1677}
1678
1679
1680static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1681{
1682 /* GUEST64 */
1683 int rc;
1684
1685 const char *pszHyper = fHyper ? " HYPER" : "";
1686 const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1687 if (pDesc->Gen.u1DescType)
1688 {
1689 static const char * const s_apszTypes[] =
1690 {
1691 "DataRO", /* 0 Read-Only */
1692 "DataRO", /* 1 Read-Only - Accessed */
1693 "DataRW", /* 2 Read/Write */
1694 "DataRW", /* 3 Read/Write - Accessed */
1695 "DownRO", /* 4 Expand-down, Read-Only */
1696 "DownRO", /* 5 Expand-down, Read-Only - Accessed */
1697 "DownRW", /* 6 Expand-down, Read/Write */
1698 "DownRW", /* 7 Expand-down, Read/Write - Accessed */
1699 "CodeEO", /* 8 Execute-Only */
1700 "CodeEO", /* 9 Execute-Only - Accessed */
1701 "CodeER", /* A Execute/Readable */
1702 "CodeER", /* B Execute/Readable - Accessed */
1703 "ConfE0", /* C Conforming, Execute-Only */
1704 "ConfE0", /* D Conforming, Execute-Only - Accessed */
1705 "ConfER", /* E Conforming, Execute/Readable */
1706 "ConfER" /* F Conforming, Execute/Readable - Accessed */
1707 };
1708 const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1709 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1710 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1711 uint32_t u32Base = X86DESC_BASE(pDesc);
1712 uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1713
1714 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1715 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1716 pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1717 pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1718 }
1719 else
1720 {
1721 static const char * const s_apszTypes[] =
1722 {
1723 "Ill-0 ", /* 0 0000 Reserved (Illegal) */
1724 "Ill-1 ", /* 1 0001 Available 16-bit TSS */
1725 "LDT ", /* 2 0010 LDT */
1726 "Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1727 "Ill-4 ", /* 4 0100 16-bit Call Gate */
1728 "Ill-5 ", /* 5 0101 Task Gate */
1729 "Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1730 "Ill-7 ", /* 7 0111 16-bit Trap Gate */
1731 "Ill-8 ", /* 8 1000 Reserved (Illegal) */
1732 "Tss64A", /* 9 1001 Available 32-bit TSS */
1733 "Ill-A ", /* A 1010 Reserved (Illegal) */
1734 "Tss64B", /* B 1011 Busy 32-bit TSS */
1735 "Call64", /* C 1100 32-bit Call Gate */
1736 "Ill-D ", /* D 1101 Reserved (Illegal) */
1737 "Int64 ", /* E 1110 32-bit Interrupt Gate */
1738 "Trap64" /* F 1111 32-bit Trap Gate */
1739 };
1740 switch (pDesc->Gen.u4Type)
1741 {
1742 /* raw */
1743 case X86_SEL_TYPE_SYS_UNDEFINED:
1744 case X86_SEL_TYPE_SYS_UNDEFINED2:
1745 case X86_SEL_TYPE_SYS_UNDEFINED4:
1746 case X86_SEL_TYPE_SYS_UNDEFINED3:
1747 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1748 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1749 case X86_SEL_TYPE_SYS_286_CALL_GATE:
1750 case X86_SEL_TYPE_SYS_286_INT_GATE:
1751 case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1752 case X86_SEL_TYPE_SYS_TASK_GATE:
1753 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1754 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1755 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1756 break;
1757
1758 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1759 case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1760 case X86_SEL_TYPE_SYS_LDT:
1761 {
1762 const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1763 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1764 const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1765
1766 uint64_t u32Base = X86DESC64_BASE(pDesc);
1767 uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1768
1769 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1770 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1771 pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1772 pDesc->Gen.u1Available, pDesc->Gen.u1Long | (pDesc->Gen.u1DefBig << 1),
1773 pszHyper);
1774 if (pfDblEntry)
1775 *pfDblEntry = true;
1776 break;
1777 }
1778
1779 case X86_SEL_TYPE_SYS_386_CALL_GATE:
1780 {
1781 unsigned cParams = pDesc->au8[4] & 0x1f;
1782 const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1783 RTSEL sel = pDesc->au16[1];
1784 uint64_t off = pDesc->au16[0]
1785 | ((uint64_t)pDesc->au16[3] << 16)
1786 | ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1787 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1788 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1789 pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1790 if (pfDblEntry)
1791 *pfDblEntry = true;
1792 break;
1793 }
1794
1795 case X86_SEL_TYPE_SYS_386_INT_GATE:
1796 case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1797 {
1798 RTSEL sel = pDesc->au16[1];
1799 uint64_t off = pDesc->au16[0]
1800 | ((uint64_t)pDesc->au16[3] << 16)
1801 | ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1802 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1803 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1804 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1805 if (pfDblEntry)
1806 *pfDblEntry = true;
1807 break;
1808 }
1809
1810 /* impossible, just it's necessary to keep gcc happy. */
1811 default:
1812 return VINF_SUCCESS;
1813 }
1814 }
1815 return VINF_SUCCESS;
1816}
1817
1818
1819/**
1820 * Worker function that displays one descriptor entry (GDT, LDT, IDT).
1821 *
1822 * @returns pfnPrintf status code.
1823 * @param pCmdHlp The DBGC command helpers.
1824 * @param pDesc The descriptor to display.
1825 * @param iEntry The descriptor entry number.
1826 * @param fHyper Whether the selector belongs to the hypervisor or not.
1827 */
1828static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1829{
1830 int rc;
1831
1832 const char *pszHyper = fHyper ? " HYPER" : "";
1833 const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1834 if (pDesc->Gen.u1DescType)
1835 {
1836 static const char * const s_apszTypes[] =
1837 {
1838 "DataRO", /* 0 Read-Only */
1839 "DataRO", /* 1 Read-Only - Accessed */
1840 "DataRW", /* 2 Read/Write */
1841 "DataRW", /* 3 Read/Write - Accessed */
1842 "DownRO", /* 4 Expand-down, Read-Only */
1843 "DownRO", /* 5 Expand-down, Read-Only - Accessed */
1844 "DownRW", /* 6 Expand-down, Read/Write */
1845 "DownRW", /* 7 Expand-down, Read/Write - Accessed */
1846 "CodeEO", /* 8 Execute-Only */
1847 "CodeEO", /* 9 Execute-Only - Accessed */
1848 "CodeER", /* A Execute/Readable */
1849 "CodeER", /* B Execute/Readable - Accessed */
1850 "ConfE0", /* C Conforming, Execute-Only */
1851 "ConfE0", /* D Conforming, Execute-Only - Accessed */
1852 "ConfER", /* E Conforming, Execute/Readable */
1853 "ConfER" /* F Conforming, Execute/Readable - Accessed */
1854 };
1855 const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1856 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1857 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1858 uint32_t u32Base = pDesc->Gen.u16BaseLow
1859 | ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1860 | ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1861 uint32_t cbLimit = pDesc->Gen.u16LimitLow | (pDesc->Gen.u4LimitHigh << 16);
1862 if (pDesc->Gen.u1Granularity)
1863 cbLimit <<= PAGE_SHIFT;
1864
1865 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1866 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1867 pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1868 pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1869 }
1870 else
1871 {
1872 static const char * const s_apszTypes[] =
1873 {
1874 "Ill-0 ", /* 0 0000 Reserved (Illegal) */
1875 "Tss16A", /* 1 0001 Available 16-bit TSS */
1876 "LDT ", /* 2 0010 LDT */
1877 "Tss16B", /* 3 0011 Busy 16-bit TSS */
1878 "Call16", /* 4 0100 16-bit Call Gate */
1879 "TaskG ", /* 5 0101 Task Gate */
1880 "Int16 ", /* 6 0110 16-bit Interrupt Gate */
1881 "Trap16", /* 7 0111 16-bit Trap Gate */
1882 "Ill-8 ", /* 8 1000 Reserved (Illegal) */
1883 "Tss32A", /* 9 1001 Available 32-bit TSS */
1884 "Ill-A ", /* A 1010 Reserved (Illegal) */
1885 "Tss32B", /* B 1011 Busy 32-bit TSS */
1886 "Call32", /* C 1100 32-bit Call Gate */
1887 "Ill-D ", /* D 1101 Reserved (Illegal) */
1888 "Int32 ", /* E 1110 32-bit Interrupt Gate */
1889 "Trap32" /* F 1111 32-bit Trap Gate */
1890 };
1891 switch (pDesc->Gen.u4Type)
1892 {
1893 /* raw */
1894 case X86_SEL_TYPE_SYS_UNDEFINED:
1895 case X86_SEL_TYPE_SYS_UNDEFINED2:
1896 case X86_SEL_TYPE_SYS_UNDEFINED4:
1897 case X86_SEL_TYPE_SYS_UNDEFINED3:
1898 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1899 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1900 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1901 break;
1902
1903 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1904 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1905 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1906 case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1907 case X86_SEL_TYPE_SYS_LDT:
1908 {
1909 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1910 const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1911 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1912 uint32_t u32Base = pDesc->Gen.u16BaseLow
1913 | ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1914 | ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1915 uint32_t cbLimit = pDesc->Gen.u16LimitLow | (pDesc->Gen.u4LimitHigh << 16);
1916 if (pDesc->Gen.u1Granularity)
1917 cbLimit <<= PAGE_SHIFT;
1918
1919 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1920 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1921 pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1922 pDesc->Gen.u1Available, pDesc->Gen.u1Long | (pDesc->Gen.u1DefBig << 1),
1923 pszHyper);
1924 break;
1925 }
1926
1927 case X86_SEL_TYPE_SYS_TASK_GATE:
1928 {
1929 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s TSS=%04x DPL=%d %s%s\n",
1930 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1931 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1932 break;
1933 }
1934
1935 case X86_SEL_TYPE_SYS_286_CALL_GATE:
1936 case X86_SEL_TYPE_SYS_386_CALL_GATE:
1937 {
1938 unsigned cParams = pDesc->au8[4] & 0x1f;
1939 const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1940 RTSEL sel = pDesc->au16[1];
1941 uint32_t off = pDesc->au16[0] | ((uint32_t)pDesc->au16[3] << 16);
1942 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
1943 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1944 pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1945 break;
1946 }
1947
1948 case X86_SEL_TYPE_SYS_286_INT_GATE:
1949 case X86_SEL_TYPE_SYS_386_INT_GATE:
1950 case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1951 case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1952 {
1953 RTSEL sel = pDesc->au16[1];
1954 uint32_t off = pDesc->au16[0] | ((uint32_t)pDesc->au16[3] << 16);
1955 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
1956 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1957 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1958 break;
1959 }
1960
1961 /* impossible, just it's necessary to keep gcc happy. */
1962 default:
1963 return VINF_SUCCESS;
1964 }
1965 }
1966 return rc;
1967}
1968
1969
1970/**
1971 * @interface_method_impl{FNDBCCMD, The 'dg', 'dga', 'dl' and 'dla' commands.}
1972 */
1973static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1974{
1975 /*
1976 * Validate input.
1977 */
1978 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
1979
1980 /*
1981 * Get the CPU mode, check which command variation this is
1982 * and fix a default parameter if needed.
1983 */
1984 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1985 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1986 CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
1987 bool fGdt = pCmd->pszCmd[1] == 'g';
1988 bool fAll = pCmd->pszCmd[2] == 'a';
1989 RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
1990
1991 DBGCVAR Var;
1992 if (!cArgs)
1993 {
1994 cArgs = 1;
1995 paArgs = &Var;
1996 Var.enmType = DBGCVAR_TYPE_NUMBER;
1997 Var.u.u64Number = 0;
1998 Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1999 Var.u64Range = 1024;
2000 }
2001
2002 /*
2003 * Process the arguments.
2004 */
2005 for (unsigned i = 0; i < cArgs; i++)
2006 {
2007 /*
2008 * Retrieve the selector value from the argument.
2009 * The parser may confuse pointers and numbers if more than one
2010 * argument is given, that that into account.
2011 */
2012 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER || DBGCVAR_ISPOINTER(paArgs[i].enmType));
2013 uint64_t u64;
2014 unsigned cSels = 1;
2015 switch (paArgs[i].enmType)
2016 {
2017 case DBGCVAR_TYPE_NUMBER:
2018 u64 = paArgs[i].u.u64Number;
2019 if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2020 cSels = RT_MIN(paArgs[i].u64Range, 1024);
2021 break;
2022 case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2023 case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2024 case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2025 case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2026 case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2027 default: u64 = _64K; break;
2028 }
2029 if (u64 < _64K)
2030 {
2031 unsigned Sel = (RTSEL)u64;
2032
2033 /*
2034 * Dump the specified range.
2035 */
2036 bool fSingle = cSels == 1;
2037 while ( cSels-- > 0
2038 && Sel < _64K)
2039 {
2040 DBGFSELINFO SelInfo;
2041 int rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, Sel | SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2042 if (RT_SUCCESS(rc))
2043 {
2044 if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2045 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x RealM Bas=%04x Lim=%04x\n",
2046 Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2047 else if ( fAll
2048 || fSingle
2049 || SelInfo.u.Raw.Gen.u1Present)
2050 {
2051 if (enmMode == CPUMMODE_PROTECTED)
2052 rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2053 else
2054 {
2055 bool fDblSkip = false;
2056 rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2057 if (fDblSkip)
2058 Sel += 4;
2059 }
2060 }
2061 }
2062 else
2063 {
2064 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %Rrc\n", Sel, rc);
2065 if (!fAll)
2066 return rc;
2067 }
2068 if (RT_FAILURE(rc))
2069 return rc;
2070
2071 /* next */
2072 Sel += 8;
2073 }
2074 }
2075 else
2076 DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds\n", u64);
2077 }
2078
2079 return VINF_SUCCESS;
2080}
2081
2082
2083/**
2084 * @interface_method_impl{FNDBCCMD, The 'di' and 'dia' commands.}
2085 */
2086static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2087{
2088 /*
2089 * Validate input.
2090 */
2091 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2092
2093 /*
2094 * Establish some stuff like the current IDTR and CPU mode,
2095 * and fix a default parameter.
2096 */
2097 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2098 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2099 uint16_t cbLimit;
2100 RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2101 CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2102 unsigned cbEntry;
2103 switch (enmMode)
2104 {
2105 case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2106 case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2107 case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2108 default:
2109 return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid CPU mode %d.\n", enmMode);
2110 }
2111
2112 bool fAll = pCmd->pszCmd[2] == 'a';
2113 DBGCVAR Var;
2114 if (!cArgs)
2115 {
2116 cArgs = 1;
2117 paArgs = &Var;
2118 Var.enmType = DBGCVAR_TYPE_NUMBER;
2119 Var.u.u64Number = 0;
2120 Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2121 Var.u64Range = 256;
2122 }
2123
2124 /*
2125 * Process the arguments.
2126 */
2127 for (unsigned i = 0; i < cArgs; i++)
2128 {
2129 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER);
2130 if (paArgs[i].u.u64Number < 256)
2131 {
2132 RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2133 unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2134 ? paArgs[i].u64Range
2135 : 1;
2136 bool fSingle = cInts == 1;
2137 while ( cInts-- > 0
2138 && iInt < 256)
2139 {
2140 /*
2141 * Try read it.
2142 */
2143 union
2144 {
2145 RTFAR16 Real;
2146 X86DESC Prot;
2147 X86DESC64 Long;
2148 } u;
2149 if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2150 {
2151 DBGCCmdHlpPrintf(pCmdHlp, "%04x not within the IDT\n", (unsigned)iInt);
2152 if (!fAll && !fSingle)
2153 return VINF_SUCCESS;
2154 }
2155 DBGCVAR AddrVar;
2156 AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2157 AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2158 AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2159 int rc = pCmdHlp->pfnMemRead(pCmdHlp, &u, cbEntry, &AddrVar, NULL);
2160 if (RT_FAILURE(rc))
2161 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2162
2163 /*
2164 * Display it.
2165 */
2166 switch (enmMode)
2167 {
2168 case CPUMMODE_REAL:
2169 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2170 /** @todo resolve 16:16 IDTE to a symbol */
2171 break;
2172 case CPUMMODE_PROTECTED:
2173 if (fAll || fSingle || u.Prot.Gen.u1Present)
2174 rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2175 break;
2176 case CPUMMODE_LONG:
2177 if (fAll || fSingle || u.Long.Gen.u1Present)
2178 rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2179 break;
2180 default: break; /* to shut up gcc */
2181 }
2182 if (RT_FAILURE(rc))
2183 return rc;
2184
2185 /* next */
2186 iInt++;
2187 }
2188 }
2189 else
2190 DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2191 }
2192
2193 return VINF_SUCCESS;
2194}
2195
2196
2197/**
2198 * @interface_method_impl{FNDBCCMD, The 'da', 'dq', 'dd', 'dw' and 'db'
2199 * commands.}
2200 */
2201static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2202{
2203 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2204
2205 /*
2206 * Validate input.
2207 */
2208 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2209 if (cArgs == 1)
2210 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2211 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2212
2213 /*
2214 * Figure out the element size.
2215 */
2216 unsigned cbElement;
2217 bool fAscii = false;
2218 switch (pCmd->pszCmd[1])
2219 {
2220 default:
2221 case 'b': cbElement = 1; break;
2222 case 'w': cbElement = 2; break;
2223 case 'd': cbElement = 4; break;
2224 case 'q': cbElement = 8; break;
2225 case 'a':
2226 cbElement = 1;
2227 fAscii = true;
2228 break;
2229 case '\0':
2230 fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2231 cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2232 if (!cbElement)
2233 cbElement = 1;
2234 break;
2235 }
2236
2237 /*
2238 * Find address.
2239 */
2240 if (!cArgs)
2241 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2242 else
2243 pDbgc->DumpPos = paArgs[0];
2244
2245 /*
2246 * Range.
2247 */
2248 switch (pDbgc->DumpPos.enmRangeType)
2249 {
2250 case DBGCVAR_RANGE_NONE:
2251 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2252 pDbgc->DumpPos.u64Range = 0x60;
2253 break;
2254
2255 case DBGCVAR_RANGE_ELEMENTS:
2256 if (pDbgc->DumpPos.u64Range > 2048)
2257 return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many elements requested. Max is 2048 elements.\n");
2258 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2259 pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2260 break;
2261
2262 case DBGCVAR_RANGE_BYTES:
2263 if (pDbgc->DumpPos.u64Range > 65536)
2264 return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
2265 break;
2266
2267 default:
2268 return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2269 }
2270
2271 pDbgc->pLastPos = &pDbgc->DumpPos;
2272
2273 /*
2274 * Do the dumping.
2275 */
2276 pDbgc->cbDumpElement = cbElement | (fAscii << 31);
2277 int cbLeft = (int)pDbgc->DumpPos.u64Range;
2278 uint8_t u8Prev = '\0';
2279 for (;;)
2280 {
2281 /*
2282 * Read memory.
2283 */
2284 char achBuffer[16];
2285 size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2286 size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2287 int rc = pCmdHlp->pfnMemRead(pCmdHlp, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2288 if (RT_FAILURE(rc))
2289 {
2290 if (u8Prev && u8Prev != '\n')
2291 DBGCCmdHlpPrintf(pCmdHlp, "\n");
2292 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2293 }
2294
2295 /*
2296 * Display it.
2297 */
2298 memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2299 if (!fAscii)
2300 {
2301 DBGCCmdHlpPrintf(pCmdHlp, "%DV:", &pDbgc->DumpPos);
2302 unsigned i;
2303 for (i = 0; i < cb; i += cbElement)
2304 {
2305 const char *pszSpace = " ";
2306 if (cbElement <= 2 && i == 8 && !fAscii)
2307 pszSpace = "-";
2308 switch (cbElement)
2309 {
2310 case 1: DBGCCmdHlpPrintf(pCmdHlp, "%s%02x", pszSpace, *(uint8_t *)&achBuffer[i]); break;
2311 case 2: DBGCCmdHlpPrintf(pCmdHlp, "%s%04x", pszSpace, *(uint16_t *)&achBuffer[i]); break;
2312 case 4: DBGCCmdHlpPrintf(pCmdHlp, "%s%08x", pszSpace, *(uint32_t *)&achBuffer[i]); break;
2313 case 8: DBGCCmdHlpPrintf(pCmdHlp, "%s%016llx", pszSpace, *(uint64_t *)&achBuffer[i]); break;
2314 }
2315 }
2316
2317 /* chars column */
2318 if (pDbgc->cbDumpElement == 1)
2319 {
2320 while (i++ < sizeof(achBuffer))
2321 DBGCCmdHlpPrintf(pCmdHlp, " ");
2322 DBGCCmdHlpPrintf(pCmdHlp, " ");
2323 for (i = 0; i < cb; i += cbElement)
2324 {
2325 uint8_t u8 = *(uint8_t *)&achBuffer[i];
2326 if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2327 DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2328 else
2329 DBGCCmdHlpPrintf(pCmdHlp, ".");
2330 }
2331 }
2332 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2333 }
2334 else
2335 {
2336 /*
2337 * We print up to the first zero and stop there.
2338 * Only printables + '\t' and '\n' are printed.
2339 */
2340 if (!u8Prev)
2341 DBGCCmdHlpPrintf(pCmdHlp, "%DV:\n", &pDbgc->DumpPos);
2342 uint8_t u8 = '\0';
2343 unsigned i;
2344 for (i = 0; i < cb; i++)
2345 {
2346 u8Prev = u8;
2347 u8 = *(uint8_t *)&achBuffer[i];
2348 if ( u8 < 127
2349 && ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2350 || u8 == '\t'
2351 || u8 == '\n'))
2352 DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2353 else if (!u8)
2354 break;
2355 else
2356 DBGCCmdHlpPrintf(pCmdHlp, "\\x%x", u8);
2357 }
2358 if (u8 == '\0')
2359 cb = cbLeft = i + 1;
2360 if (cbLeft - cb <= 0 && u8Prev != '\n')
2361 DBGCCmdHlpPrintf(pCmdHlp, "\n");
2362 }
2363
2364 /*
2365 * Advance
2366 */
2367 cbLeft -= (int)cb;
2368 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2369 if (RT_FAILURE(rc))
2370 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2371 if (cbLeft <= 0)
2372 break;
2373 }
2374
2375 NOREF(pCmd);
2376 return VINF_SUCCESS;
2377}
2378
2379
2380/**
2381 * Best guess at which paging mode currently applies to the guest
2382 * paging structures.
2383 *
2384 * This have to come up with a decent answer even when the guest
2385 * is in non-paged protected mode or real mode.
2386 *
2387 * @returns cr3.
2388 * @param pDbgc The DBGC instance.
2389 * @param pfPAE Where to store the page address extension indicator.
2390 * @param pfLME Where to store the long mode enabled indicator.
2391 * @param pfPSE Where to store the page size extension indicator.
2392 * @param pfPGE Where to store the page global enabled indicator.
2393 * @param pfNXE Where to store the no-execution enabled indicator.
2394 */
2395static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool *pfPAE, bool *pfLME, bool *pfPSE, bool *pfPGE, bool *pfNXE)
2396{
2397 PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2398 RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2399 *pfPSE = !!(cr4 & X86_CR4_PSE);
2400 *pfPGE = !!(cr4 & X86_CR4_PGE);
2401 if (cr4 & X86_CR4_PAE)
2402 {
2403 *pfPSE = true;
2404 *pfPAE = true;
2405 }
2406 else
2407 *pfPAE = false;
2408
2409 *pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2410 *pfNXE = false; /* GUEST64 GUESTNX */
2411 return CPUMGetGuestCR3(pVCpu);
2412}
2413
2414
2415/**
2416 * Determine the shadow paging mode.
2417 *
2418 * @returns cr3.
2419 * @param pDbgc The DBGC instance.
2420 * @param pfPAE Where to store the page address extension indicator.
2421 * @param pfLME Where to store the long mode enabled indicator.
2422 * @param pfPSE Where to store the page size extension indicator.
2423 * @param pfPGE Where to store the page global enabled indicator.
2424 * @param pfNXE Where to store the no-execution enabled indicator.
2425 */
2426static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool *pfPAE, bool *pfLME, bool *pfPSE, bool *pfPGE, bool *pfNXE)
2427{
2428 PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2429
2430 *pfPSE = true;
2431 *pfPGE = false;
2432 switch (PGMGetShadowMode(pVCpu))
2433 {
2434 default:
2435 case PGMMODE_32_BIT:
2436 *pfPAE = *pfLME = *pfNXE = false;
2437 break;
2438 case PGMMODE_PAE:
2439 *pfLME = *pfNXE = false;
2440 *pfPAE = true;
2441 break;
2442 case PGMMODE_PAE_NX:
2443 *pfLME = false;
2444 *pfPAE = *pfNXE = true;
2445 break;
2446 case PGMMODE_AMD64:
2447 *pfNXE = false;
2448 *pfPAE = *pfLME = true;
2449 break;
2450 case PGMMODE_AMD64_NX:
2451 *pfPAE = *pfLME = *pfNXE = true;
2452 break;
2453 }
2454 return PGMGetHyperCR3(pVCpu);
2455}
2456
2457
2458/**
2459 * @interface_method_impl{FNDBCCMD, The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh'
2460 * commands.}
2461 */
2462static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2463{
2464 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2465
2466 /*
2467 * Validate input.
2468 */
2469 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2470 if (cArgs == 1 && pCmd->pszCmd[3] == 'a')
2471 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2472 if (cArgs == 1 && pCmd->pszCmd[3] != 'a')
2473 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2474 || DBGCVAR_ISPOINTER(paArgs[0].enmType));
2475 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2476
2477 /*
2478 * Guest or shadow page directories? Get the paging parameters.
2479 */
2480 bool fGuest = pCmd->pszCmd[3] != 'h';
2481 if (!pCmd->pszCmd[3] || pCmd->pszCmd[3] == 'a')
2482 fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2483 ? pDbgc->fRegCtxGuest
2484 : DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2485
2486 bool fPAE, fLME, fPSE, fPGE, fNXE;
2487 uint64_t cr3 = fGuest
2488 ? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2489 : dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2490 const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2491
2492 /*
2493 * Setup default argument if none was specified.
2494 * Fix address / index confusion.
2495 */
2496 DBGCVAR VarDefault;
2497 if (!cArgs)
2498 {
2499 if (pCmd->pszCmd[3] == 'a')
2500 {
2501 if (fLME || fPAE)
2502 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");
2503 if (fGuest)
2504 DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2505 else
2506 DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2507 }
2508 else
2509 DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2510 paArgs = &VarDefault;
2511 cArgs = 1;
2512 }
2513 else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2514 {
2515 /* If it's a number (not an address), it's an index, so convert it to an address. */
2516 Assert(pCmd->pszCmd[3] != 'a');
2517 VarDefault = paArgs[0];
2518 if (fPAE)
2519 return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2520 if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2521 return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2522 VarDefault.u.u64Number <<= X86_PD_SHIFT;
2523 VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2524 paArgs = &VarDefault;
2525 }
2526
2527 /*
2528 * Locate the PDE to start displaying at.
2529 *
2530 * The 'dpda' command takes the address of a PDE, while the others are guest
2531 * virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2532 * while the others require us to do all the tedious walking thru the paging
2533 * hierarchy to find the intended PDE.
2534 */
2535 unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2536 DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2537 DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2538 unsigned cEntries; /* The number of entries to display. */
2539 unsigned cEntriesMax; /* The max number of entries to display. */
2540 int rc;
2541 if (pCmd->pszCmd[3] == 'a')
2542 {
2543 VarPDEAddr = paArgs[0];
2544 switch (VarPDEAddr.enmRangeType)
2545 {
2546 case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2547 case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2548 default: cEntries = 10; break;
2549 }
2550 cEntriesMax = PAGE_SIZE / cbEntry;
2551 }
2552 else
2553 {
2554 /*
2555 * Determine the range.
2556 */
2557 switch (paArgs[0].enmRangeType)
2558 {
2559 case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2560 case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2561 default: cEntries = 10; break;
2562 }
2563
2564 /*
2565 * Normalize the input address, it must be a flat GC address.
2566 */
2567 rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2568 if (RT_FAILURE(rc))
2569 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2570 if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2571 {
2572 VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2573 VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2574 }
2575 if (fPAE)
2576 VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2577 else
2578 VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2579
2580 /*
2581 * Do the paging walk until we get to the page directory.
2582 */
2583 DBGCVAR VarCur;
2584 if (fGuest)
2585 DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2586 else
2587 DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2588 if (fLME)
2589 {
2590 /* Page Map Level 4 Lookup. */
2591 /* Check if it's a valid address first? */
2592 VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2593 VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2594 X86PML4E Pml4e;
2595 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2596 if (RT_FAILURE(rc))
2597 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2598 if (!Pml4e.n.u1Present)
2599 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2600
2601 VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2602 Assert(fPAE);
2603 }
2604 if (fPAE)
2605 {
2606 /* Page directory pointer table. */
2607 X86PDPE Pdpe;
2608 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2609 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2610 if (RT_FAILURE(rc))
2611 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2612 if (!Pdpe.n.u1Present)
2613 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2614
2615 iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2616 VarPDEAddr = VarCur;
2617 VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2618 VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2619 }
2620 else
2621 {
2622 /* 32-bit legacy - CR3 == page directory. */
2623 iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2624 VarPDEAddr = VarCur;
2625 VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2626 }
2627 cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2628 }
2629
2630 /* adjust cEntries */
2631 cEntries = RT_MAX(1, cEntries);
2632 cEntries = RT_MIN(cEntries, cEntriesMax);
2633
2634 /*
2635 * The display loop.
2636 */
2637 DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2638 &VarPDEAddr, iEntry);
2639 do
2640 {
2641 /*
2642 * Read.
2643 */
2644 X86PDEPAE Pde;
2645 Pde.u = 0;
2646 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, cbEntry, &VarPDEAddr, NULL);
2647 if (RT_FAILURE(rc))
2648 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2649
2650 /*
2651 * Display.
2652 */
2653 if (iEntry != ~0U)
2654 {
2655 DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2656 iEntry++;
2657 }
2658 if (fPSE && Pde.b.u1Size)
2659 DBGCCmdHlpPrintf(pCmdHlp,
2660 fPAE
2661 ? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2662 : "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2663 Pde.u,
2664 Pde.u & X86_PDE_PAE_PG_MASK,
2665 Pde.b.u1Present ? "p " : "np",
2666 Pde.b.u1Write ? "w" : "r",
2667 Pde.b.u1User ? "u" : "s",
2668 Pde.b.u1Accessed ? "a " : "na",
2669 Pde.b.u1Dirty ? "d " : "nd",
2670 Pde.b.u3Available,
2671 Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2672 Pde.b.u1WriteThru ? "pwt" : " ",
2673 Pde.b.u1CacheDisable ? "pcd" : " ",
2674 Pde.b.u1PAT ? "pat" : "",
2675 Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2676 else
2677 DBGCCmdHlpPrintf(pCmdHlp,
2678 fPAE
2679 ? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2680 : "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2681 Pde.u,
2682 Pde.u & X86_PDE_PAE_PG_MASK,
2683 Pde.n.u1Present ? "p " : "np",
2684 Pde.n.u1Write ? "w" : "r",
2685 Pde.n.u1User ? "u" : "s",
2686 Pde.n.u1Accessed ? "a " : "na",
2687 Pde.u & RT_BIT(6) ? "6 " : " ",
2688 Pde.n.u3Available,
2689 Pde.u & RT_BIT(8) ? "8" : " ",
2690 Pde.n.u1WriteThru ? "pwt" : " ",
2691 Pde.n.u1CacheDisable ? "pcd" : " ",
2692 Pde.u & RT_BIT(7) ? "7" : "",
2693 Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2694 if (Pde.u & UINT64_C(0x7fff000000000000))
2695 DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2696 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2697 if (RT_FAILURE(rc))
2698 return rc;
2699
2700 /*
2701 * Advance.
2702 */
2703 VarPDEAddr.u.u64Number += cbEntry;
2704 if (iEntry != ~0U)
2705 VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2706 } while (cEntries-- > 0);
2707
2708 return VINF_SUCCESS;
2709}
2710
2711
2712/**
2713 * @interface_method_impl{FNDBCCMD, The 'dpdb' command.}
2714 */
2715static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2716{
2717 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2718 int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2719 int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2720 if (RT_FAILURE(rc1))
2721 return rc1;
2722 NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
2723 return rc2;
2724}
2725
2726
2727/**
2728 * @interface_method_impl{FNDBCCMD, The 'dph*' commands and main part of 'm'.}
2729 */
2730static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2731{
2732 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2733 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2734
2735 /*
2736 * Figure the context and base flags.
2737 */
2738 uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO | DBGFPGDMP_FLAGS_PRINT_CR3;
2739 if (pCmd->pszCmd[0] == 'm')
2740 fFlags |= DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW;
2741 else if (pCmd->pszCmd[3] == '\0')
2742 fFlags |= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2743 else if (pCmd->pszCmd[3] == 'g')
2744 fFlags |= DBGFPGDMP_FLAGS_GUEST;
2745 else if (pCmd->pszCmd[3] == 'h')
2746 fFlags |= DBGFPGDMP_FLAGS_SHADOW;
2747 else
2748 AssertFailed();
2749
2750 if (pDbgc->cPagingHierarchyDumps == 0)
2751 fFlags |= DBGFPGDMP_FLAGS_HEADER;
2752 pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2753
2754 /*
2755 * Get the range.
2756 */
2757 PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2758 RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2759 int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2760 if (RT_FAILURE(rc))
2761 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2762
2763 uint64_t cbRange;
2764 rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2765 if (RT_FAILURE(rc))
2766 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2767
2768 RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2769 if (cbRange >= GCPtrLast)
2770 GCPtrLast = RTGCPTR_MAX;
2771 else if (!cbRange)
2772 GCPtrLast = GCPtrFirst;
2773 else
2774 GCPtrLast = GCPtrFirst + cbRange - 1;
2775
2776 /*
2777 * Do we have a CR3?
2778 */
2779 uint64_t cr3 = 0;
2780 if (cArgs > 1)
2781 {
2782 if ((fFlags & (DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW))
2783 return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2784 if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2785 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2786 cr3 = paArgs[1].u.u64Number;
2787 }
2788 else
2789 fFlags |= DBGFPGDMP_FLAGS_CURRENT_CR3;
2790
2791 /*
2792 * Do we have a mode?
2793 */
2794 if (cArgs > 2)
2795 {
2796 if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2797 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2798 static const struct MODETOFLAGS
2799 {
2800 const char *pszName;
2801 uint32_t fFlags;
2802 } s_aModeToFlags[] =
2803 {
2804 { "ept", DBGFPGDMP_FLAGS_EPT },
2805 { "legacy", 0 },
2806 { "legacy-np", DBGFPGDMP_FLAGS_NP },
2807 { "pse", DBGFPGDMP_FLAGS_PSE },
2808 { "pse-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_NP },
2809 { "pae", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE },
2810 { "pae-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NP },
2811 { "pae-nx", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NXE },
2812 { "pae-nx-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NXE | DBGFPGDMP_FLAGS_NP },
2813 { "long", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME },
2814 { "long-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NP },
2815 { "long-nx", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NXE },
2816 { "long-nx-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NXE | DBGFPGDMP_FLAGS_NP }
2817 };
2818 int i = RT_ELEMENTS(s_aModeToFlags);
2819 while (i-- > 0)
2820 if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2821 {
2822 fFlags |= s_aModeToFlags[i].fFlags;
2823 break;
2824 }
2825 if (i < 0)
2826 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2827 }
2828 else
2829 fFlags |= DBGFPGDMP_FLAGS_CURRENT_MODE;
2830
2831 /*
2832 * Call the worker.
2833 */
2834 rc = DBGFR3PagingDumpEx(pUVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /*cMaxDepth*/,
2835 DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2836 if (RT_FAILURE(rc))
2837 return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2838 return VINF_SUCCESS;
2839}
2840
2841
2842
2843/**
2844 * @interface_method_impl{FNDBCCMD, The 'dpg*' commands.}
2845 */
2846static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2847{
2848 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2849
2850 /*
2851 * Validate input.
2852 */
2853 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1);
2854 if (pCmd->pszCmd[3] == 'a')
2855 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2856 else
2857 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2858 || DBGCVAR_ISPOINTER(paArgs[0].enmType));
2859 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2860
2861 /*
2862 * Guest or shadow page tables? Get the paging parameters.
2863 */
2864 bool fGuest = pCmd->pszCmd[3] != 'h';
2865 if (!pCmd->pszCmd[3] || pCmd->pszCmd[3] == 'a')
2866 fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2867 ? pDbgc->fRegCtxGuest
2868 : DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2869
2870 bool fPAE, fLME, fPSE, fPGE, fNXE;
2871 uint64_t cr3 = fGuest
2872 ? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2873 : dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2874 const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2875
2876 /*
2877 * Locate the PTE to start displaying at.
2878 *
2879 * The 'dpta' command takes the address of a PTE, while the others are guest
2880 * virtual address which PTEs should be displayed. So, 'pdta' is rather simple
2881 * while the others require us to do all the tedious walking thru the paging
2882 * hierarchy to find the intended PTE.
2883 */
2884 unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
2885 DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
2886 DBGCVAR VarPTEAddr; /* The address of the current PTE. */
2887 unsigned cEntries; /* The number of entries to display. */
2888 unsigned cEntriesMax; /* The max number of entries to display. */
2889 int rc;
2890 if (pCmd->pszCmd[3] == 'a')
2891 {
2892 VarPTEAddr = paArgs[0];
2893 switch (VarPTEAddr.enmRangeType)
2894 {
2895 case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
2896 case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
2897 default: cEntries = 10; break;
2898 }
2899 cEntriesMax = PAGE_SIZE / cbEntry;
2900 }
2901 else
2902 {
2903 /*
2904 * Determine the range.
2905 */
2906 switch (paArgs[0].enmRangeType)
2907 {
2908 case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2909 case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2910 default: cEntries = 10; break;
2911 }
2912
2913 /*
2914 * Normalize the input address, it must be a flat GC address.
2915 */
2916 rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2917 if (RT_FAILURE(rc))
2918 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2919 if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2920 {
2921 VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2922 VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2923 }
2924 VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
2925
2926 /*
2927 * Do the paging walk until we get to the page table.
2928 */
2929 DBGCVAR VarCur;
2930 if (fGuest)
2931 DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2932 else
2933 DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2934 if (fLME)
2935 {
2936 /* Page Map Level 4 Lookup. */
2937 /* Check if it's a valid address first? */
2938 VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2939 VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2940 X86PML4E Pml4e;
2941 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2942 if (RT_FAILURE(rc))
2943 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2944 if (!Pml4e.n.u1Present)
2945 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2946
2947 VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2948 Assert(fPAE);
2949 }
2950 if (fPAE)
2951 {
2952 /* Page directory pointer table. */
2953 X86PDPE Pdpe;
2954 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2955 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2956 if (RT_FAILURE(rc))
2957 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2958 if (!Pdpe.n.u1Present)
2959 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2960
2961 VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2962
2963 /* Page directory (PAE). */
2964 X86PDEPAE Pde;
2965 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
2966 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
2967 if (RT_FAILURE(rc))
2968 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
2969 if (!Pde.n.u1Present)
2970 return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
2971 if (fPSE && Pde.n.u1Size)
2972 return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
2973
2974 iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
2975 VarPTEAddr = VarCur;
2976 VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
2977 VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
2978 }
2979 else
2980 {
2981 /* Page directory (legacy). */
2982 X86PDE Pde;
2983 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
2984 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
2985 if (RT_FAILURE(rc))
2986 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
2987 if (!Pde.n.u1Present)
2988 return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
2989 if (fPSE && Pde.n.u1Size)
2990 return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
2991
2992 iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
2993 VarPTEAddr = VarCur;
2994 VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
2995 VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
2996 }
2997 cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2998 }
2999
3000 /* adjust cEntries */
3001 cEntries = RT_MAX(1, cEntries);
3002 cEntries = RT_MIN(cEntries, cEntriesMax);
3003
3004 /*
3005 * The display loop.
3006 */
3007 DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3008 &VarPTEAddr, &VarGCPtr, iEntry);
3009 do
3010 {
3011 /*
3012 * Read.
3013 */
3014 X86PTEPAE Pte;
3015 Pte.u = 0;
3016 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pte, cbEntry, &VarPTEAddr, NULL);
3017 if (RT_FAILURE(rc))
3018 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3019
3020 /*
3021 * Display.
3022 */
3023 if (iEntry != ~0U)
3024 {
3025 DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3026 iEntry++;
3027 }
3028 DBGCCmdHlpPrintf(pCmdHlp,
3029 fPAE
3030 ? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3031 : "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3032 Pte.u,
3033 Pte.u & X86_PTE_PAE_PG_MASK,
3034 Pte.n.u1Present ? "p " : "np",
3035 Pte.n.u1Write ? "w" : "r",
3036 Pte.n.u1User ? "u" : "s",
3037 Pte.n.u1Accessed ? "a " : "na",
3038 Pte.n.u1Dirty ? "d " : "nd",
3039 Pte.n.u3Available,
3040 Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3041 Pte.n.u1WriteThru ? "pwt" : " ",
3042 Pte.n.u1CacheDisable ? "pcd" : " ",
3043 Pte.n.u1PAT ? "pat" : " ",
3044 Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3045 );
3046 if (Pte.u & UINT64_C(0x7fff000000000000))
3047 DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3048 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3049 if (RT_FAILURE(rc))
3050 return rc;
3051
3052 /*
3053 * Advance.
3054 */
3055 VarPTEAddr.u.u64Number += cbEntry;
3056 if (iEntry != ~0U)
3057 VarGCPtr.u.GCFlat += PAGE_SIZE;
3058 } while (cEntries-- > 0);
3059
3060 return VINF_SUCCESS;
3061}
3062
3063
3064/**
3065 * @interface_method_impl{FNDBCCMD, The 'dptb' command.}
3066 */
3067static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3068{
3069 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3070 int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3071 int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3072 if (RT_FAILURE(rc1))
3073 return rc1;
3074 NOREF(pCmd); NOREF(cArgs);
3075 return rc2;
3076}
3077
3078
3079/**
3080 * @interface_method_impl{FNDBCCMD, The 'dt' command.}
3081 */
3082static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3083{
3084 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3085 int rc;
3086
3087 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3088 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
3089 if (cArgs == 1)
3090 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType != DBGCVAR_TYPE_STRING
3091 && paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL);
3092
3093 /*
3094 * Check if the command indicates the type.
3095 */
3096 enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3097 if (!strcmp(pCmd->pszCmd, "dt16"))
3098 enmTssType = kTss16;
3099 else if (!strcmp(pCmd->pszCmd, "dt32"))
3100 enmTssType = kTss32;
3101 else if (!strcmp(pCmd->pszCmd, "dt64"))
3102 enmTssType = kTss64;
3103
3104 /*
3105 * We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3106 */
3107 uint32_t SelTss = UINT32_MAX;
3108 DBGCVAR VarTssAddr;
3109 if (cArgs == 0)
3110 {
3111 /** @todo consider querying the hidden bits instead (missing API). */
3112 uint16_t SelTR;
3113 rc = DBGFR3RegCpuQueryU16(pUVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3114 if (RT_FAILURE(rc))
3115 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3116 DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3117 SelTss = SelTR;
3118 }
3119 else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3120 {
3121 if (paArgs[0].u.u64Number < 0xffff)
3122 DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3123 else
3124 {
3125 if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3126 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3127 DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3128 if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3129 {
3130 VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3131 VarTssAddr.u64Range = paArgs[0].u64Range;
3132 }
3133 }
3134 }
3135 else
3136 VarTssAddr = paArgs[0];
3137
3138 /*
3139 * Deal with TSS:ign by means of the GDT.
3140 */
3141 if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3142 {
3143 SelTss = VarTssAddr.u.GCFar.sel;
3144 DBGFSELINFO SelInfo;
3145 rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3146 if (RT_FAILURE(rc))
3147 return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3148 pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3149
3150 if (SelInfo.u.Raw.Gen.u1DescType)
3151 return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3152
3153 switch (SelInfo.u.Raw.Gen.u4Type)
3154 {
3155 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3156 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3157 if (enmTssType == kTssToBeDetermined)
3158 enmTssType = kTss16;
3159 break;
3160
3161 case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3162 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3163 if (enmTssType == kTssToBeDetermined)
3164 enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3165 break;
3166
3167 default:
3168 return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3169 VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3170 }
3171
3172 DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3173 DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3174 }
3175
3176 /*
3177 * Determine the TSS type if none is currently given.
3178 */
3179 if (enmTssType == kTssToBeDetermined)
3180 {
3181 if ( VarTssAddr.u64Range > 0
3182 && VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3183 enmTssType = kTss16;
3184 else
3185 {
3186 uint64_t uEfer;
3187 rc = DBGFR3RegCpuQueryU64(pUVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3188 if ( RT_FAILURE(rc)
3189 || !(uEfer & MSR_K6_EFER_LMA) )
3190 enmTssType = kTss32;
3191 else
3192 enmTssType = kTss64;
3193 }
3194 }
3195
3196 /*
3197 * Figure the min/max sizes.
3198 * ASSUMES max TSS size is 64 KB.
3199 */
3200 uint32_t cbTssMin;
3201 uint32_t cbTssMax;
3202 switch (enmTssType)
3203 {
3204 case kTss16:
3205 cbTssMin = cbTssMax = sizeof(X86TSS16);
3206 break;
3207 case kTss32:
3208 cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3209 cbTssMax = _64K;
3210 break;
3211 case kTss64:
3212 cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3213 cbTssMax = _64K;
3214 break;
3215 default:
3216 AssertFailedReturn(VERR_INTERNAL_ERROR);
3217 }
3218 uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3219 if (cbTss == 0)
3220 cbTss = cbTssMin;
3221 else if (cbTss < cbTssMin)
3222 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3223 cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3224 else if (cbTss > cbTssMax)
3225 cbTss = cbTssMax;
3226 DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3227
3228 /*
3229 * Read the TSS into a temporary buffer.
3230 */
3231 uint8_t abBuf[_64K];
3232 size_t cbTssRead;
3233 rc = DBGCCmdHlpMemRead(pCmdHlp, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3234 if (RT_FAILURE(rc))
3235 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3236 if (cbTssRead < cbTssMin)
3237 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3238 cbTssRead, cbTssMin);
3239 if (cbTssRead < cbTss)
3240 memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3241
3242
3243 /*
3244 * Format the TSS.
3245 */
3246 uint16_t offIoBitmap;
3247 switch (enmTssType)
3248 {
3249 case kTss16:
3250 {
3251 PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3252 if (SelTss != UINT32_MAX)
3253 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3254 else
3255 DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3256 DBGCCmdHlpPrintf(pCmdHlp,
3257 "ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3258 "ip=%04x sp=%04x bp=%04x\n"
3259 "cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3260 "ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3261 "prev=%04x ldtr=%04x\n"
3262 ,
3263 pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3264 pTss->ip, pTss->sp, pTss->bp,
3265 pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3266 pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3267 pTss->selPrev, pTss->selLdt);
3268 if (pTss->cs != 0)
3269 pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3270 offIoBitmap = 0;
3271 break;
3272 }
3273
3274 case kTss32:
3275 {
3276 PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3277 if (SelTss != UINT32_MAX)
3278 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3279 else
3280 DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3281 DBGCCmdHlpPrintf(pCmdHlp,
3282 "eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3283 "eip=%08x esp=%08x ebp=%08x\n"
3284 "cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3285 "ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3286 "prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3287 ,
3288 pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3289 pTss->eip, pTss->esp, pTss->ebp,
3290 pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3291 pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3292 pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3293 if (pTss->cs != 0)
3294 pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3295 offIoBitmap = pTss->offIoBitmap;
3296 break;
3297 }
3298
3299 case kTss64:
3300 {
3301 PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3302 if (SelTss != UINT32_MAX)
3303 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3304 else
3305 DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3306 DBGCCmdHlpPrintf(pCmdHlp,
3307 "rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3308 "ist1=%016RX16 ist2=%016RX16\n"
3309 "ist3=%016RX16 ist4=%016RX16\n"
3310 "ist5=%016RX16 ist6=%016RX16\n"
3311 "ist7=%016RX16 iomap=%04x\n"
3312 ,
3313 pTss->rsp0, pTss->rsp1, pTss->rsp2,
3314 pTss->ist1, pTss->ist2,
3315 pTss->ist3, pTss->ist4,
3316 pTss->ist5, pTss->ist6,
3317 pTss->ist7, pTss->offIoBitmap);
3318 offIoBitmap = pTss->offIoBitmap;
3319 break;
3320 }
3321
3322 default:
3323 AssertFailedReturn(VERR_INTERNAL_ERROR);
3324 }
3325
3326 /*
3327 * Dump the interrupt redirection bitmap.
3328 */
3329 if (enmTssType != kTss16)
3330 {
3331 if ( offIoBitmap > cbTssMin
3332 && offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3333 {
3334 if (offIoBitmap - cbTssMin >= 32)
3335 {
3336 DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3337 uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3338 uint32_t iStart = 0;
3339 bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3340 for (uint32_t i = 0; i < 256; i++)
3341 {
3342 bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3343 if (fThis != fPrev)
3344 {
3345 DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3346 fPrev = fThis;
3347 iStart = i;
3348 }
3349 }
3350 if (iStart != 255)
3351 DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3352 }
3353 else
3354 DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3355 offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3356 }
3357 else if (offIoBitmap > 0)
3358 DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3359 else
3360 DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3361 }
3362
3363 /*
3364 * Dump the I/O permission bitmap if present. The IOPM cannot start below offset 0x64
3365 * (that applies to both 32-bit and 64-bit TSSs since their size is the same).
3366 */
3367 if (enmTssType != kTss16)
3368 {
3369 if (offIoBitmap < cbTss && offIoBitmap >= 0x64)
3370 {
3371 uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3372 DBGCVAR VarAddr;
3373 DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3374 DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3375
3376 uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3377 uint32_t iStart = 0;
3378 bool fPrev = ASMBitTest(pbIoBitmap, 0);
3379 uint32_t cLine = 0;
3380 for (uint32_t i = 1; i < cPorts; i++)
3381 {
3382 bool fThis = ASMBitTest(pbIoBitmap, i);
3383 if (fThis != fPrev)
3384 {
3385 cLine++;
3386 DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3387 fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3388 fPrev = fThis;
3389 iStart = i;
3390 }
3391 }
3392 if (iStart != _64K-1)
3393 DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3394 }
3395 else if (offIoBitmap > 0)
3396 DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3397 else
3398 DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3399 }
3400
3401 return VINF_SUCCESS;
3402}
3403
3404
3405/**
3406 * @interface_method_impl{FNDBCCMD, The 'm' command.}
3407 */
3408static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3409{
3410 DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3411 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3412 return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
3413}
3414
3415
3416/**
3417 * Converts one or more variables into a byte buffer for a
3418 * given unit size.
3419 *
3420 * @returns VBox status codes:
3421 * @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3422 * @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3423 * @retval VINF_SUCCESS on success.
3424 *
3425 * @param pvBuf The buffer to convert into.
3426 * @param pcbBuf The buffer size on input. The size of the result on output.
3427 * @param cbUnit The unit size to apply when converting.
3428 * The high bit is used to indicate unicode string.
3429 * @param paVars The array of variables to convert.
3430 * @param cVars The number of variables.
3431 */
3432int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void *pvBuf, uint32_t *pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3433{
3434 union
3435 {
3436 uint8_t *pu8;
3437 uint16_t *pu16;
3438 uint32_t *pu32;
3439 uint64_t *pu64;
3440 } u, uEnd;
3441 u.pu8 = (uint8_t *)pvBuf;
3442 uEnd.pu8 = u.pu8 + *pcbBuf;
3443
3444 unsigned i;
3445 for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3446 {
3447 switch (paVars[i].enmType)
3448 {
3449 case DBGCVAR_TYPE_GC_FAR:
3450 case DBGCVAR_TYPE_GC_FLAT:
3451 case DBGCVAR_TYPE_GC_PHYS:
3452 case DBGCVAR_TYPE_HC_FLAT:
3453 case DBGCVAR_TYPE_HC_PHYS:
3454 case DBGCVAR_TYPE_NUMBER:
3455 {
3456 uint64_t u64 = paVars[i].u.u64Number;
3457 switch (cbUnit & 0x1f)
3458 {
3459 case 1:
3460 do
3461 {
3462 *u.pu8++ = u64;
3463 u64 >>= 8;
3464 } while (u64);
3465 break;
3466 case 2:
3467 do
3468 {
3469 *u.pu16++ = u64;
3470 u64 >>= 16;
3471 } while (u64);
3472 break;
3473 case 4:
3474 *u.pu32++ = u64;
3475 u64 >>= 32;
3476 if (u64)
3477 *u.pu32++ = u64;
3478 break;
3479 case 8:
3480 *u.pu64++ = u64;
3481 break;
3482 }
3483 break;
3484 }
3485
3486 case DBGCVAR_TYPE_STRING:
3487 case DBGCVAR_TYPE_SYMBOL:
3488 {
3489 const char *psz = paVars[i].u.pszString;
3490 size_t cbString = strlen(psz);
3491 if (cbUnit & RT_BIT_32(31))
3492 {
3493 /* Explode char to unit. */
3494 if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3495 {
3496 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3497 return VERR_TOO_MUCH_DATA;
3498 }
3499 while (*psz)
3500 {
3501 switch (cbUnit & 0x1f)
3502 {
3503 case 1: *u.pu8++ = *psz; break;
3504 case 2: *u.pu16++ = *psz; break;
3505 case 4: *u.pu32++ = *psz; break;
3506 case 8: *u.pu64++ = *psz; break;
3507 }
3508 psz++;
3509 }
3510 }
3511 else
3512 {
3513 /* Raw copy with zero padding if the size isn't aligned. */
3514 if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3515 {
3516 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3517 return VERR_TOO_MUCH_DATA;
3518 }
3519
3520 size_t cbCopy = cbString & ~(cbUnit - 1);
3521 memcpy(u.pu8, psz, cbCopy);
3522 u.pu8 += cbCopy;
3523 psz += cbCopy;
3524
3525 size_t cbReminder = cbString & (cbUnit - 1);
3526 if (cbReminder)
3527 {
3528 memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3529 memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3530 u.pu8 += cbUnit;
3531 }
3532 }
3533 break;
3534 }
3535
3536 default:
3537 *pcbBuf = u.pu8 - (uint8_t *)pvBuf;
3538 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3539 "i=%d enmType=%d\n", i, paVars[i].enmType);
3540 return VERR_INTERNAL_ERROR;
3541 }
3542 }
3543 *pcbBuf = u.pu8 - (uint8_t *)pvBuf;
3544 if (i != cVars)
3545 {
3546 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3547 return VERR_TOO_MUCH_DATA;
3548 }
3549 return VINF_SUCCESS;
3550}
3551
3552
3553/**
3554 * @interface_method_impl{FNDBCCMD, The 'eb', 'ew', 'ed' and 'eq' commands.}
3555 */
3556static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3557{
3558 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3559 unsigned iArg;
3560
3561 /*
3562 * Validate input.
3563 */
3564 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2);
3565 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
3566 for (iArg = 1; iArg < cArgs; iArg++)
3567 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER);
3568 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3569
3570 /*
3571 * Figure out the element size.
3572 */
3573 unsigned cbElement;
3574 switch (pCmd->pszCmd[1])
3575 {
3576 default:
3577 case 'b': cbElement = 1; break;
3578 case 'w': cbElement = 2; break;
3579 case 'd': cbElement = 4; break;
3580 case 'q': cbElement = 8; break;
3581 }
3582
3583 /*
3584 * Do setting.
3585 */
3586 DBGCVAR Addr = paArgs[0];
3587 for (iArg = 1;;)
3588 {
3589 size_t cbWritten;
3590 int rc = pCmdHlp->pfnMemWrite(pCmdHlp, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3591 if (RT_FAILURE(rc))
3592 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3593 if (cbWritten != cbElement)
3594 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3595
3596 /* advance. */
3597 iArg++;
3598 if (iArg >= cArgs)
3599 break;
3600 rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3601 if (RT_FAILURE(rc))
3602 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3603 }
3604
3605 return VINF_SUCCESS;
3606}
3607
3608
3609/**
3610 * Executes the search.
3611 *
3612 * @returns VBox status code.
3613 * @param pCmdHlp The command helpers.
3614 * @param pUVM The user mode VM handle.
3615 * @param pAddress The address to start searching from. (undefined on output)
3616 * @param cbRange The address range to search. Must not wrap.
3617 * @param pabBytes The byte pattern to search for.
3618 * @param cbBytes The size of the pattern.
3619 * @param cbUnit The search unit.
3620 * @param cMaxHits The max number of hits.
3621 * @param pResult Where to store the result if it's a function invocation.
3622 */
3623static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3624 const uint8_t *pabBytes, uint32_t cbBytes,
3625 uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3626{
3627 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3628
3629 /*
3630 * Do the search.
3631 */
3632 uint64_t cHits = 0;
3633 for (;;)
3634 {
3635 /* search */
3636 DBGFADDRESS HitAddress;
3637 int rc = DBGFR3MemScan(pUVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3638 if (RT_FAILURE(rc))
3639 {
3640 if (rc != VERR_DBGF_MEM_NOT_FOUND)
3641 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3642
3643 /* update the current address so we can save it (later). */
3644 pAddress->off += cbRange;
3645 pAddress->FlatPtr += cbRange;
3646 cbRange = 0;
3647 break;
3648 }
3649
3650 /* report result */
3651 DBGCVAR VarCur;
3652 rc = DBGCCmdHlpVarFromDbgfAddr(pCmdHlp, &HitAddress, &VarCur);
3653 if (RT_FAILURE(rc))
3654 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGCCmdHlpVarFromDbgfAddr\n");
3655 if (!pResult)
3656 pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3657 else
3658 DBGCVAR_ASSIGN(pResult, &VarCur);
3659
3660 /* advance */
3661 cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3662 *pAddress = HitAddress;
3663 pAddress->FlatPtr += cbBytes;
3664 pAddress->off += cbBytes;
3665 if (cbRange <= cbBytes)
3666 {
3667 cbRange = 0;
3668 break;
3669 }
3670 cbRange -= cbBytes;
3671
3672 if (++cHits >= cMaxHits)
3673 {
3674 /// @todo save the search.
3675 break;
3676 }
3677 }
3678
3679 /*
3680 * Save the search so we can resume it...
3681 */
3682 if (pDbgc->abSearch != pabBytes)
3683 {
3684 memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3685 pDbgc->cbSearch = cbBytes;
3686 pDbgc->cbSearchUnit = cbUnit;
3687 }
3688 pDbgc->cMaxSearchHits = cMaxHits;
3689 pDbgc->SearchAddr = *pAddress;
3690 pDbgc->cbSearchRange = cbRange;
3691
3692 return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3693}
3694
3695
3696/**
3697 * Resumes the previous search.
3698 *
3699 * @returns VBox status code.
3700 * @param pCmdHlp Pointer to the command helper functions.
3701 * @param pUVM The user mode VM handle.
3702 * @param pResult Where to store the result of a function invocation.
3703 */
3704static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGCVAR pResult)
3705{
3706 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3707
3708 /*
3709 * Make sure there is a previous command.
3710 */
3711 if (!pDbgc->cbSearch)
3712 {
3713 DBGCCmdHlpPrintf(pCmdHlp, "Error: No previous search\n");
3714 return VERR_DBGC_COMMAND_FAILED;
3715 }
3716
3717 /*
3718 * Make range and address adjustments.
3719 */
3720 DBGFADDRESS Address = pDbgc->SearchAddr;
3721 if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3722 {
3723 Address.FlatPtr -= Address.off;
3724 Address.off = 0;
3725 }
3726
3727 RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3728 if (!cbRange)
3729 cbRange = ~(RTGCUINTPTR)0;
3730 if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3731 cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3732
3733 return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3734 pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3735}
3736
3737
3738/**
3739 * Search memory, worker for the 's' and 's?' functions.
3740 *
3741 * @returns VBox status.
3742 * @param pCmdHlp Pointer to the command helper functions.
3743 * @param pUVM The user mode VM handle.
3744 * @param pAddress Where to start searching. If no range, search till end of address space.
3745 * @param cMaxHits The maximum number of hits.
3746 * @param chType The search type.
3747 * @param paPatArgs The pattern variable array.
3748 * @param cPatArgs Number of pattern variables.
3749 * @param pResult Where to store the result of a function invocation.
3750 */
3751static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3752 PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3753{
3754 if (pResult)
3755 DBGCVAR_INIT_GC_FLAT(pResult, 0);
3756
3757 /*
3758 * Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3759 */
3760 uint32_t cbUnit;
3761 switch (chType)
3762 {
3763 case 'a':
3764 case 'b': cbUnit = 1; break;
3765 case 'u': cbUnit = 2 | RT_BIT_32(31); break;
3766 case 'w': cbUnit = 2; break;
3767 case 'd': cbUnit = 4; break;
3768 case 'q': cbUnit = 8; break;
3769 default:
3770 return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3771 }
3772 uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3773 uint32_t cbBytes = sizeof(abBytes);
3774 int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3775 if (RT_FAILURE(rc))
3776 return VERR_DBGC_COMMAND_FAILED;
3777
3778 /*
3779 * Make DBGF address and fix the range.
3780 */
3781 DBGFADDRESS Address;
3782 rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3783 if (RT_FAILURE(rc))
3784 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3785
3786 RTGCUINTPTR cbRange;
3787 switch (pAddress->enmRangeType)
3788 {
3789 case DBGCVAR_RANGE_BYTES:
3790 cbRange = pAddress->u64Range;
3791 if (cbRange != pAddress->u64Range)
3792 cbRange = ~(RTGCUINTPTR)0;
3793 break;
3794
3795 case DBGCVAR_RANGE_ELEMENTS:
3796 cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3797 if ( cbRange != pAddress->u64Range * cbUnit
3798 || cbRange < pAddress->u64Range)
3799 cbRange = ~(RTGCUINTPTR)0;
3800 break;
3801
3802 default:
3803 cbRange = ~(RTGCUINTPTR)0;
3804 break;
3805 }
3806 if (Address.FlatPtr + cbRange < Address.FlatPtr)
3807 cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3808
3809 /*
3810 * Ok, do it.
3811 */
3812 return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3813}
3814
3815
3816/**
3817 * @interface_method_impl{FNDBCCMD, The 's' command.}
3818 */
3819static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3820{
3821 /* check that the parser did what it's supposed to do. */
3822 //if ( cArgs <= 2
3823 // && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3824 // return DBGCCmdHlpPrintf(pCmdHlp, "parser error\n");
3825
3826 /*
3827 * Repeat previous search?
3828 */
3829 if (cArgs == 0)
3830 return dbgcCmdWorkerSearchMemResume(pCmdHlp, pUVM, NULL);
3831
3832 /*
3833 * Parse arguments.
3834 */
3835
3836 return -1;
3837}
3838
3839
3840/**
3841 * @interface_method_impl{FNDBCCMD, The 's?' command.}
3842 */
3843static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3844{
3845 /* check that the parser did what it's supposed to do. */
3846 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2 && DBGCVAR_ISGCPOINTER(paArgs[0].enmType));
3847 return dbgcCmdWorkerSearchMem(pCmdHlp, pUVM, &paArgs[0], 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, NULL);
3848}
3849
3850
3851/**
3852 * List near symbol.
3853 *
3854 * @returns VBox status code.
3855 * @param pCmdHlp Pointer to command helper functions.
3856 * @param pUVM The user mode VM handle.
3857 * @param pArg Pointer to the address or symbol to lookup.
3858 */
3859static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pArg)
3860{
3861 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3862
3863 RTDBGSYMBOL Symbol;
3864 int rc;
3865 if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
3866 {
3867 /*
3868 * Lookup the symbol address.
3869 */
3870 rc = DBGFR3AsSymbolByName(pUVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
3871 if (RT_FAILURE(rc))
3872 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
3873
3874 rc = DBGCCmdHlpPrintf(pCmdHlp, "%RTptr %s\n", Symbol.Value, Symbol.szName);
3875 }
3876 else
3877 {
3878 /*
3879 * Convert it to a flat GC address and lookup that address.
3880 */
3881 DBGCVAR AddrVar;
3882 rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
3883 if (RT_FAILURE(rc))
3884 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
3885
3886 RTINTPTR offDisp;
3887 DBGFADDRESS Addr;
3888 rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, AddrVar.u.GCFlat),
3889 RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &offDisp, &Symbol, NULL);
3890 if (RT_FAILURE(rc))
3891 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
3892
3893 if (!offDisp)
3894 rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s", &AddrVar, Symbol.szName);
3895 else if (offDisp > 0)
3896 rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
3897 else
3898 rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
3899 if (Symbol.cb > 0)
3900 rc = DBGCCmdHlpPrintf(pCmdHlp, " (LB %RGv)\n", Symbol.cb);
3901 else
3902 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3903 }
3904
3905 return rc;
3906}
3907
3908
3909/**
3910 * @interface_method_impl{FNDBCCMD, The 'ln' (listnear) command.}
3911 */
3912static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3913{
3914 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3915 if (!cArgs)
3916 {
3917 /*
3918 * Current cs:eip symbol.
3919 */
3920 DBGCVAR AddrVar;
3921 const char *pszFmtExpr = pDbgc->fRegCtxGuest ? "%%(cs:eip)" : "%%(.cs:.eip)";
3922 int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, pszFmtExpr);
3923 if (RT_FAILURE(rc))
3924 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%s\n", pszFmtExpr + 1);
3925 return dbgcDoListNear(pCmdHlp, pUVM, &AddrVar);
3926 }
3927
3928/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
3929 /*
3930 * Iterate arguments.
3931 */
3932 for (unsigned iArg = 0; iArg < cArgs; iArg++)
3933 {
3934 int rc = dbgcDoListNear(pCmdHlp, pUVM, &paArgs[iArg]);
3935 if (RT_FAILURE(rc))
3936 return rc;
3937 }
3938
3939 NOREF(pCmd);
3940 return VINF_SUCCESS;
3941}
3942
3943
3944/**
3945 * Matches the module patters against a module name.
3946 *
3947 * @returns true if matching, otherwise false.
3948 * @param pszName The module name.
3949 * @param paArgs The module pattern argument list.
3950 * @param cArgs Number of arguments.
3951 */
3952static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
3953{
3954 for (uint32_t i = 0; i < cArgs; i++)
3955 if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
3956 return true;
3957 return false;
3958}
3959
3960
3961/**
3962 * @interface_method_impl{FNDBCCMD, The 'ln' (list near) command.}
3963 */
3964static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3965{
3966 bool const fMappings = pCmd->pszCmd[2] == 'o';
3967 bool const fVerbose = pCmd->pszCmd[strlen(pCmd->pszCmd) - 1] == 'v';
3968 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3969
3970 /*
3971 * Iterate the modules in the current address space and print info about
3972 * those matching the input.
3973 */
3974 RTDBGAS hAs = DBGFR3AsResolveAndRetain(pUVM, pDbgc->hDbgAs);
3975 uint32_t cMods = RTDbgAsModuleCount(hAs);
3976 for (uint32_t iMod = 0; iMod < cMods; iMod++)
3977 {
3978 RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
3979 if (hMod != NIL_RTDBGMOD)
3980 {
3981 bool const fDeferred = RTDbgModIsDeferred(hMod);
3982 bool const fExports = RTDbgModIsExports(hMod);
3983 uint32_t const cSegs = fDeferred ? 1 : RTDbgModSegmentCount(hMod);
3984 const char * const pszName = RTDbgModName(hMod);
3985 const char * const pszImgFile = RTDbgModImageFile(hMod);
3986 const char * const pszImgFileUsed = RTDbgModImageFileUsed(hMod);
3987 const char * const pszDbgFile = RTDbgModDebugFile(hMod);
3988 if ( cArgs == 0
3989 || dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
3990 {
3991 /*
3992 * Find the mapping with the lower address, preferring a full
3993 * image mapping, for the main line.
3994 */
3995 RTDBGASMAPINFO aMappings[128];
3996 uint32_t cMappings = RT_ELEMENTS(aMappings);
3997 int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /*fFlags*/);
3998 if (RT_SUCCESS(rc))
3999 {
4000 bool fFull = false;
4001 RTUINTPTR uMin = RTUINTPTR_MAX;
4002 for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4003 if ( aMappings[iMap].Address < uMin
4004 && ( !fFull
4005 || aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4006 uMin = aMappings[iMap].Address;
4007 if (!fVerbose || !pszImgFile)
4008 DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName,
4009 fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4010 else
4011 DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %-12s %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName, pszImgFile,
4012 fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4013 if (fVerbose && pszImgFileUsed)
4014 DBGCCmdHlpPrintf(pCmdHlp, " Local image: %s\n", pszImgFileUsed);
4015 if (fVerbose && pszDbgFile)
4016 DBGCCmdHlpPrintf(pCmdHlp, " Debug file: %s\n", pszDbgFile);
4017
4018 if (fMappings)
4019 {
4020 /* sort by address first - not very efficient. */
4021 for (uint32_t i = 0; i + 1 < cMappings; i++)
4022 for (uint32_t j = i + 1; j < cMappings; j++)
4023 if (aMappings[j].Address < aMappings[i].Address)
4024 {
4025 RTDBGASMAPINFO Tmp = aMappings[j];
4026 aMappings[j] = aMappings[i];
4027 aMappings[i] = Tmp;
4028 }
4029
4030 /* print */
4031 if ( cMappings == 1
4032 && aMappings[0].iSeg == NIL_RTDBGSEGIDX
4033 && !fDeferred)
4034 {
4035 for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
4036 {
4037 RTDBGSEGMENT SegInfo;
4038 rc = RTDbgModSegmentByIndex(hMod, iSeg, &SegInfo);
4039 if (RT_SUCCESS(rc))
4040 {
4041 if (SegInfo.uRva != RTUINTPTR_MAX)
4042 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4043 (RTGCUINTPTR)(aMappings[0].Address + SegInfo.uRva),
4044 (RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4045 else
4046 DBGCCmdHlpPrintf(pCmdHlp, " %*s %RGv #%02x %s\n",
4047 sizeof(RTGCUINTPTR)*2, "noload",
4048 (RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4049 }
4050 else
4051 DBGCCmdHlpPrintf(pCmdHlp, " Error query segment #%u: %Rrc\n", iSeg, rc);
4052 }
4053 }
4054 else
4055 {
4056 for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4057 if (aMappings[iMap].iSeg == NIL_RTDBGSEGIDX)
4058 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4059 (RTGCUINTPTR)aMappings[iMap].Address,
4060 (RTGCUINTPTR)RTDbgModImageSize(hMod));
4061 else if (!fDeferred)
4062 {
4063 RTDBGSEGMENT SegInfo;
4064 rc = RTDbgModSegmentByIndex(hMod, aMappings[iMap].iSeg, &SegInfo);
4065 if (RT_FAILURE(rc))
4066 {
4067 RT_ZERO(SegInfo);
4068 strcpy(SegInfo.szName, "error");
4069 }
4070 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4071 (RTGCUINTPTR)aMappings[iMap].Address,
4072 (RTGCUINTPTR)SegInfo.cb,
4073 aMappings[iMap].iSeg, SegInfo.szName);
4074 }
4075 else
4076 DBGCCmdHlpPrintf(pCmdHlp, " %RGv #%02x\n",
4077 (RTGCUINTPTR)aMappings[iMap].Address, aMappings[iMap].iSeg);
4078 }
4079 }
4080 }
4081 else
4082 DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4083 sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4084 /** @todo missing address space API for enumerating the mappings. */
4085 }
4086 RTDbgModRelease(hMod);
4087 }
4088 }
4089 RTDbgAsRelease(hAs);
4090
4091 NOREF(pCmd);
4092 return VINF_SUCCESS;
4093}
4094
4095
4096
4097/**
4098 * @callback_method_impl{Reads a unsigned 8-bit value.}
4099 */
4100static DECLCALLBACK(int) dbgcFuncReadU8(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4101 PDBGCVAR pResult)
4102{
4103 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4104 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4105 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4106
4107 uint8_t b;
4108 int rc = DBGCCmdHlpMemRead(pCmdHlp, &b, sizeof(b), &paArgs[0], NULL);
4109 if (RT_FAILURE(rc))
4110 return rc;
4111 DBGCVAR_INIT_NUMBER(pResult, b);
4112
4113 NOREF(pFunc);
4114 return VINF_SUCCESS;
4115}
4116
4117
4118/**
4119 * @callback_method_impl{Reads a unsigned 16-bit value.}
4120 */
4121static DECLCALLBACK(int) dbgcFuncReadU16(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4122 PDBGCVAR pResult)
4123{
4124 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4125 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4126 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4127
4128 uint16_t u16;
4129 int rc = DBGCCmdHlpMemRead(pCmdHlp, &u16, sizeof(u16), &paArgs[0], NULL);
4130 if (RT_FAILURE(rc))
4131 return rc;
4132 DBGCVAR_INIT_NUMBER(pResult, u16);
4133
4134 NOREF(pFunc);
4135 return VINF_SUCCESS;
4136}
4137
4138
4139/**
4140 * @callback_method_impl{Reads a unsigned 32-bit value.}
4141 */
4142static DECLCALLBACK(int) dbgcFuncReadU32(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4143 PDBGCVAR pResult)
4144{
4145 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4146 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4147 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4148
4149 uint32_t u32;
4150 int rc = DBGCCmdHlpMemRead(pCmdHlp, &u32, sizeof(u32), &paArgs[0], NULL);
4151 if (RT_FAILURE(rc))
4152 return rc;
4153 DBGCVAR_INIT_NUMBER(pResult, u32);
4154
4155 NOREF(pFunc);
4156 return VINF_SUCCESS;
4157}
4158
4159
4160/**
4161 * @callback_method_impl{Reads a unsigned 64-bit value.}
4162 */
4163static DECLCALLBACK(int) dbgcFuncReadU64(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4164 PDBGCVAR pResult)
4165{
4166 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4167 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4168 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4169
4170 uint64_t u64;
4171 int rc = DBGCCmdHlpMemRead(pCmdHlp, &u64, sizeof(u64), &paArgs[0], NULL);
4172 if (RT_FAILURE(rc))
4173 return rc;
4174 DBGCVAR_INIT_NUMBER(pResult, u64);
4175
4176 NOREF(pFunc);
4177 return VINF_SUCCESS;
4178}
4179
4180
4181/**
4182 * @callback_method_impl{Reads a unsigned pointer-sized value.}
4183 */
4184static DECLCALLBACK(int) dbgcFuncReadPtr(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4185 PDBGCVAR pResult)
4186{
4187 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4188 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4189 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4190
4191 CPUMMODE enmMode = DBGCCmdHlpGetCpuMode(pCmdHlp);
4192 if (enmMode == CPUMMODE_LONG)
4193 return dbgcFuncReadU64(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4194 return dbgcFuncReadU32(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4195}
4196
4197
4198/**
4199 * @callback_method_impl{The hi(value) function implementation.}
4200 */
4201static DECLCALLBACK(int) dbgcFuncHi(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4202 PDBGCVAR pResult)
4203{
4204 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4205
4206 uint16_t uHi;
4207 switch (paArgs[0].enmType)
4208 {
4209 case DBGCVAR_TYPE_GC_FLAT: uHi = (uint16_t)(paArgs[0].u.GCFlat >> 16); break;
4210 case DBGCVAR_TYPE_GC_FAR: uHi = (uint16_t)paArgs[0].u.GCFar.sel; break;
4211 case DBGCVAR_TYPE_GC_PHYS: uHi = (uint16_t)(paArgs[0].u.GCPhys >> 16); break;
4212 case DBGCVAR_TYPE_HC_FLAT: uHi = (uint16_t)((uintptr_t)paArgs[0].u.pvHCFlat >> 16); break;
4213 case DBGCVAR_TYPE_HC_PHYS: uHi = (uint16_t)(paArgs[0].u.HCPhys >> 16); break;
4214 case DBGCVAR_TYPE_NUMBER: uHi = (uint16_t)(paArgs[0].u.u64Number >> 16); break;
4215 default:
4216 AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4217 }
4218 DBGCVAR_INIT_NUMBER(pResult, uHi);
4219 DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4220
4221 NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4222 return VINF_SUCCESS;
4223}
4224
4225
4226/**
4227 * @callback_method_impl{The low(value) function implementation.}
4228 */
4229static DECLCALLBACK(int) dbgcFuncLow(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4230 PDBGCVAR pResult)
4231{
4232 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4233
4234 uint16_t uLow;
4235 switch (paArgs[0].enmType)
4236 {
4237 case DBGCVAR_TYPE_GC_FLAT: uLow = (uint16_t)paArgs[0].u.GCFlat; break;
4238 case DBGCVAR_TYPE_GC_FAR: uLow = (uint16_t)paArgs[0].u.GCFar.off; break;
4239 case DBGCVAR_TYPE_GC_PHYS: uLow = (uint16_t)paArgs[0].u.GCPhys; break;
4240 case DBGCVAR_TYPE_HC_FLAT: uLow = (uint16_t)(uintptr_t)paArgs[0].u.pvHCFlat; break;
4241 case DBGCVAR_TYPE_HC_PHYS: uLow = (uint16_t)paArgs[0].u.HCPhys; break;
4242 case DBGCVAR_TYPE_NUMBER: uLow = (uint16_t)paArgs[0].u.u64Number; break;
4243 default:
4244 AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4245 }
4246 DBGCVAR_INIT_NUMBER(pResult, uLow);
4247 DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4248
4249 NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4250 return VINF_SUCCESS;
4251}
4252
4253
4254/**
4255 * @callback_method_impl{The low(value) function implementation.}
4256 */
4257static DECLCALLBACK(int) dbgcFuncNot(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4258 PDBGCVAR pResult)
4259{
4260 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4261 NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4262 return DBGCCmdHlpEval(pCmdHlp, pResult, "!(%Dv)", &paArgs[0]);
4263}
4264
4265
4266/** Generic pointer argument wo/ range. */
4267static const DBGCVARDESC g_aArgPointerWoRange[] =
4268{
4269 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4270 { 1, 1, DBGCVAR_CAT_POINTER_NO_RANGE, 0, "value", "Address or number." },
4271};
4272
4273/** Generic pointer or number argument. */
4274static const DBGCVARDESC g_aArgPointerNumber[] =
4275{
4276 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4277 { 1, 1, DBGCVAR_CAT_POINTER_NUMBER, 0, "value", "Address or number." },
4278};
4279
4280
4281
4282/** Function descriptors for the CodeView / WinDbg emulation.
4283 * The emulation isn't attempting to be identical, only somewhat similar.
4284 */
4285const DBGCFUNC g_aFuncsCodeView[] =
4286{
4287 { "by", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU8, "address", "Reads a byte at the given address." },
4288 { "dwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU32, "address", "Reads a 32-bit value at the given address." },
4289 { "hi", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncHi, "value", "Returns the high 16-bit bits of a value." },
4290 { "low", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncLow, "value", "Returns the low 16-bit bits of a value." },
4291 { "not", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncNot, "address", "Boolean NOT." },
4292 { "poi", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadPtr, "address", "Reads a pointer sized (CS) value at the given address." },
4293 { "qwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU64, "address", "Reads a 32-bit value at the given address." },
4294 { "wo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU16, "address", "Reads a 16-bit value at the given address." },
4295};
4296
4297/** The number of functions in the CodeView/WinDbg emulation. */
4298const uint32_t g_cFuncsCodeView = RT_ELEMENTS(g_aFuncsCodeView);
4299
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