VirtualBox

source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 58170

Last change on this file since 58170 was 58170, checked in by vboxsync, 9 years ago

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1/* $Id: DBGCEmulateCodeView.cpp 58170 2015-10-12 09:27:14Z vboxsync $ */
2/** @file
3 * DBGC - Debugger Console, CodeView / WinDbg Emulation.
4 */
5
6/*
7 * Copyright (C) 2006-2015 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/*********************************************************************************************************************************
20* Header Files *
21*********************************************************************************************************************************/
22#define LOG_GROUP LOG_GROUP_DBGC
23#include <VBox/dbg.h>
24#include <VBox/vmm/dbgf.h>
25#include <VBox/vmm/pgm.h>
26#include <VBox/vmm/cpum.h>
27#include <VBox/dis.h>
28#include <VBox/param.h>
29#include <VBox/err.h>
30#include <VBox/log.h>
31
32#include <iprt/asm.h>
33#include <iprt/mem.h>
34#include <iprt/string.h>
35#include <iprt/assert.h>
36#include <iprt/ctype.h>
37
38#include <stdlib.h>
39#include <stdio.h>
40
41#include "DBGCInternal.h"
42
43
44/*********************************************************************************************************************************
45* Internal Functions *
46*********************************************************************************************************************************/
47static FNDBGCCMD dbgcCmdBrkAccess;
48static FNDBGCCMD dbgcCmdBrkClear;
49static FNDBGCCMD dbgcCmdBrkDisable;
50static FNDBGCCMD dbgcCmdBrkEnable;
51static FNDBGCCMD dbgcCmdBrkList;
52static FNDBGCCMD dbgcCmdBrkSet;
53static FNDBGCCMD dbgcCmdBrkREM;
54static FNDBGCCMD dbgcCmdDumpMem;
55static FNDBGCCMD dbgcCmdDumpDT;
56static FNDBGCCMD dbgcCmdDumpIDT;
57static FNDBGCCMD dbgcCmdDumpPageDir;
58static FNDBGCCMD dbgcCmdDumpPageDirBoth;
59static FNDBGCCMD dbgcCmdDumpPageHierarchy;
60static FNDBGCCMD dbgcCmdDumpPageTable;
61static FNDBGCCMD dbgcCmdDumpPageTableBoth;
62static FNDBGCCMD dbgcCmdDumpTSS;
63static FNDBGCCMD dbgcCmdEditMem;
64static FNDBGCCMD dbgcCmdGo;
65static FNDBGCCMD dbgcCmdListModules;
66static FNDBGCCMD dbgcCmdListNear;
67static FNDBGCCMD dbgcCmdListSource;
68static FNDBGCCMD dbgcCmdMemoryInfo;
69static FNDBGCCMD dbgcCmdReg;
70static FNDBGCCMD dbgcCmdRegGuest;
71static FNDBGCCMD dbgcCmdRegHyper;
72static FNDBGCCMD dbgcCmdRegTerse;
73static FNDBGCCMD dbgcCmdSearchMem;
74static FNDBGCCMD dbgcCmdSearchMemType;
75static FNDBGCCMD dbgcCmdStack;
76static FNDBGCCMD dbgcCmdTrace;
77static FNDBGCCMD dbgcCmdUnassemble;
78
79
80/*********************************************************************************************************************************
81* Global Variables *
82*********************************************************************************************************************************/
83/** 'ba' arguments. */
84static const DBGCVARDESC g_aArgBrkAcc[] =
85{
86 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
87 { 1, 1, DBGCVAR_CAT_STRING, 0, "access", "The access type: x=execute, rw=read/write (alias r), w=write, i=not implemented." },
88 { 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." },
89 { 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
90 { 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
91 { 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)" },
92 { 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
93};
94
95
96/** 'bc', 'bd', 'be' arguments. */
97static const DBGCVARDESC g_aArgBrks[] =
98{
99 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
100 { 0, ~0U, DBGCVAR_CAT_NUMBER, 0, "#bp", "Breakpoint number." },
101 { 0, 1, DBGCVAR_CAT_STRING, 0, "all", "All breakpoints." },
102};
103
104
105/** 'bp' arguments. */
106static const DBGCVARDESC g_aArgBrkSet[] =
107{
108 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
109 { 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
110 { 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
111 { 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)" },
112 { 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
113};
114
115
116/** 'br' arguments. */
117static const DBGCVARDESC g_aArgBrkREM[] =
118{
119 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
120 { 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
121 { 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
122 { 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)" },
123 { 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
124};
125
126
127/** 'd?' arguments. */
128static const DBGCVARDESC g_aArgDumpMem[] =
129{
130 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
131 { 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start dumping memory." },
132};
133
134
135/** 'dg', 'dga', 'dl', 'dla' arguments. */
136static const DBGCVARDESC g_aArgDumpDT[] =
137{
138 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
139 { 0, ~0U, DBGCVAR_CAT_NUMBER, 0, "sel", "Selector or selector range." },
140 { 0, ~0U, DBGCVAR_CAT_POINTER, 0, "address", "Far address which selector should be dumped." },
141};
142
143
144/** 'di', 'dia' arguments. */
145static const DBGCVARDESC g_aArgDumpIDT[] =
146{
147 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
148 { 0, ~0U, DBGCVAR_CAT_NUMBER, 0, "int", "The interrupt vector or interrupt vector range." },
149};
150
151
152/** 'dpd*' arguments. */
153static const DBGCVARDESC g_aArgDumpPD[] =
154{
155 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
156 { 0, 1, DBGCVAR_CAT_NUMBER, 0, "index", "Index into the page directory." },
157 { 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from. Range is applied to the page directory." },
158};
159
160
161/** 'dpda' arguments. */
162static const DBGCVARDESC g_aArgDumpPDAddr[] =
163{
164 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
165 { 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page directory entry to start dumping from." },
166};
167
168
169/** 'dph*' arguments. */
170static const DBGCVARDESC g_aArgDumpPH[] =
171{
172 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
173 { 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." },
174 { 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." },
175 { 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." },
176};
177
178
179/** 'dpt?' arguments. */
180static const DBGCVARDESC g_aArgDumpPT[] =
181{
182 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
183 { 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from." },
184};
185
186
187/** 'dpta' arguments. */
188static const DBGCVARDESC g_aArgDumpPTAddr[] =
189{
190 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
191 { 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page table entry to start dumping from." },
192};
193
194
195/** 'dt' arguments. */
196static const DBGCVARDESC g_aArgDumpTSS[] =
197{
198 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
199 { 0, 1, DBGCVAR_CAT_NUMBER, 0, "tss", "TSS selector number." },
200 { 0, 1, DBGCVAR_CAT_POINTER, 0, "tss:ign|addr", "TSS address. If the selector is a TSS selector, the offset will be ignored." }
201};
202
203
204/** 'e?' arguments. */
205static const DBGCVARDESC g_aArgEditMem[] =
206{
207 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
208 { 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to write." },
209 { 1, ~0U, DBGCVAR_CAT_NUMBER, 0, "value", "Value to write." },
210};
211
212
213/** 'lm' arguments. */
214static const DBGCVARDESC g_aArgListMods[] =
215{
216 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
217 { 0, ~0U, DBGCVAR_CAT_STRING, 0, "module", "Module name." },
218};
219
220
221/** 'ln' arguments. */
222static const DBGCVARDESC g_aArgListNear[] =
223{
224 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
225 { 0, ~0U, DBGCVAR_CAT_POINTER, 0, "address", "Address of the symbol to look up." },
226 { 0, ~0U, DBGCVAR_CAT_SYMBOL, 0, "symbol", "Symbol to lookup." },
227};
228
229
230/** 'ls' arguments. */
231static const DBGCVARDESC g_aArgListSource[] =
232{
233 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
234 { 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start looking for source lines." },
235};
236
237
238/** 'm' argument. */
239static const DBGCVARDESC g_aArgMemoryInfo[] =
240{
241 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
242 { 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Pointer to obtain info about." },
243};
244
245
246/** 'r' arguments. */
247static const DBGCVARDESC g_aArgReg[] =
248{
249 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
250 { 0, 1, DBGCVAR_CAT_SYMBOL, 0, "register", "Register to show or set." },
251 { 0, 1, DBGCVAR_CAT_STRING, DBGCVD_FLAGS_DEP_PREV, "=", "Equal sign." },
252 { 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "value", "New register value." },
253};
254
255
256/** 's' arguments. */
257static const DBGCVARDESC g_aArgSearchMem[] =
258{
259 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
260 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-b", "Byte string." },
261 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-w", "Word string." },
262 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-d", "DWord string." },
263 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-q", "QWord string." },
264 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-a", "ASCII string." },
265 { 0, 1, DBGCVAR_CAT_OPTION, 0, "-u", "Unicode string." },
266 { 0, 1, DBGCVAR_CAT_OPTION_NUMBER, 0, "-n <Hits>", "Maximum number of hits." },
267 { 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
268 { 0, ~0U, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
269};
270
271
272/** 's?' arguments. */
273static const DBGCVARDESC g_aArgSearchMemType[] =
274{
275 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
276 { 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
277 { 1, ~0U, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
278};
279
280
281/** 'u' arguments. */
282static const DBGCVARDESC g_aArgUnassemble[] =
283{
284 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
285 { 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start disassembling." },
286};
287
288
289/** Command descriptors for the CodeView / WinDbg emulation.
290 * The emulation isn't attempting to be identical, only somewhat similar.
291 */
292const DBGCCMD g_aCmdsCodeView[] =
293{
294 /* pszCmd, cArgsMin, cArgsMax, paArgDescs, cArgDescs, fFlags, pfnHandler pszSyntax, ....pszDescription */
295 { "ba", 3, 6, &g_aArgBrkAcc[0], RT_ELEMENTS(g_aArgBrkAcc), 0, dbgcCmdBrkAccess, "<access> <size> <address> [passes [max passes]] [cmds]",
296 "Sets a data access breakpoint." },
297 { "bc", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkClear, "all | <bp#> [bp# []]", "Deletes a set of breakpoints." },
298 { "bd", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkDisable, "all | <bp#> [bp# []]", "Disables a set of breakpoints." },
299 { "be", 1, ~0U, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), 0, dbgcCmdBrkEnable, "all | <bp#> [bp# []]", "Enables a set of breakpoints." },
300 { "bl", 0, 0, NULL, 0, 0, dbgcCmdBrkList, "", "Lists all the breakpoints." },
301 { "bp", 1, 4, &g_aArgBrkSet[0], RT_ELEMENTS(g_aArgBrkSet), 0, dbgcCmdBrkSet, "<address> [passes [max passes]] [cmds]",
302 "Sets a breakpoint (int 3)." },
303 { "br", 1, 4, &g_aArgBrkREM[0], RT_ELEMENTS(g_aArgBrkREM), 0, dbgcCmdBrkREM, "<address> [passes [max passes]] [cmds]",
304 "Sets a recompiler specific breakpoint." },
305 { "d", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory using last element size." },
306 { "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
307 { "db", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in bytes." },
308 { "dd", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in double words." },
309 { "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
310 { "dg", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT)." },
311 { "dga", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT) including not-present entries." },
312 { "di", 0, ~0U, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT)." },
313 { "dia", 0, ~0U, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT) including not-present entries." },
314 { "dl", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT)." },
315 { "dla", 0, ~0U, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT) including not-present entries." },
316 { "dpd", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr|index]", "Dumps page directory entries of the default context." },
317 { "dpda", 0, 1, &g_aArgDumpPDAddr[0],RT_ELEMENTS(g_aArgDumpPDAddr), 0, dbgcCmdDumpPageDir, "[addr]", "Dumps memory at given address as a page directory." },
318 { "dpdb", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDirBoth, "[addr|index]", "Dumps page directory entries of the guest and the hypervisor. " },
319 { "dpdg", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr|index]", "Dumps page directory entries of the guest." },
320 { "dpdh", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), 0, dbgcCmdDumpPageDir, "[addr|index]", "Dumps page directory entries of the hypervisor. " },
321 { "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." },
322 { "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." },
323 { "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." },
324 { "dpt", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the default context." },
325 { "dpta", 1, 1, &g_aArgDumpPTAddr[0],RT_ELEMENTS(g_aArgDumpPTAddr), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps memory at given address as a page table." },
326 { "dptb", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTableBoth,"<addr>", "Dumps page table entries of the guest and the hypervisor." },
327 { "dptg", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the guest." },
328 { "dpth", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the hypervisor." },
329 { "dq", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in quad words." },
330 { "dt", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss|tss:ign|addr]", "Dump the task state segment (TSS)." },
331 { "dt16", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss|tss:ign|addr]", "Dump the 16-bit task state segment (TSS)." },
332 { "dt32", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss|tss:ign|addr]", "Dump the 32-bit task state segment (TSS)." },
333 { "dt64", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), 0, dbgcCmdDumpTSS, "[tss|tss:ign|addr]", "Dump the 64-bit task state segment (TSS)." },
334 { "dw", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), 0, dbgcCmdDumpMem, "[addr]", "Dump memory in words." },
335 /** @todo add 'e', 'ea str', 'eza str', 'eu str' and 'ezu str'. See also
336 * dbgcCmdSearchMem and its dbgcVarsToBytes usage. */
337 { "eb", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 1-byte value to memory." },
338 { "ew", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 2-byte value to memory." },
339 { "ed", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 4-byte value to memory." },
340 { "eq", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), 0, dbgcCmdEditMem, "<addr> <value>", "Write a 8-byte value to memory." },
341 { "g", 0, 0, NULL, 0, 0, dbgcCmdGo, "", "Continue execution." },
342 { "k", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack." },
343 { "kg", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack - guest." },
344 { "kh", 0, 0, NULL, 0, 0, dbgcCmdStack, "", "Callstack - hypervisor." },
345 { "lm", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules." },
346 { "lmv", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules, verbose." },
347 { "lmo", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments." },
348 { "lmov", 0, ~0U, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments, verbose." },
349 { "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." },
350 { "ls", 0, 1, &g_aArgListSource[0],RT_ELEMENTS(g_aArgListSource), 0, dbgcCmdListSource, "[addr]", "Source." },
351 { "m", 1, 1, &g_aArgMemoryInfo[0],RT_ELEMENTS(g_aArgMemoryInfo), 0, dbgcCmdMemoryInfo, "<addr>", "Display information about that piece of memory." },
352 { "r", 0, 3, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdReg, "[reg [[=] newval]]", "Show or set register(s) - active reg set." },
353 { "rg", 0, 3, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegGuest, "[reg [[=] newval]]", "Show or set register(s) - guest reg set." },
354 { "rg32", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 32-bit guest registers." },
355 { "rg64", 0, 0, NULL, 0, 0, dbgcCmdRegGuest, "", "Show 64-bit guest registers." },
356 { "rh", 0, 3, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), 0, dbgcCmdRegHyper, "[reg [[=] newval]]", "Show or set register(s) - hypervisor reg set." },
357 { "rt", 0, 0, NULL, 0, 0, dbgcCmdRegTerse, "", "Toggles terse / verbose register info." },
358 { "s", 0, ~0U, &g_aArgSearchMem[0], RT_ELEMENTS(g_aArgSearchMem), 0, dbgcCmdSearchMem, "[options] <range> <pattern>", "Continue last search." },
359 { "sa", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an ascii string." },
360 { "sb", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more bytes." },
361 { "sd", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more double words." },
362 { "sq", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more quad words." },
363 { "su", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an unicode string." },
364 { "sw", 2, ~0U, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType),0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more words." },
365 { "t", 0, 0, NULL, 0, 0, dbgcCmdTrace, "", "Instruction trace (step into)." },
366 { "u", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble." },
367 { "u64", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 64-bit code." },
368 { "u32", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 32-bit code." },
369 { "u16", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code." },
370 { "uv86", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble), 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code with v8086/real mode addressing." },
371};
372
373/** The number of commands in the CodeView/WinDbg emulation. */
374const uint32_t g_cCmdsCodeView = RT_ELEMENTS(g_aCmdsCodeView);
375
376
377
378
379/**
380 * @callback_method_impl{FNDBGCCMD, The 'go' command.}
381 */
382static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
383{
384 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
385
386 /*
387 * Check if the VM is halted or not before trying to resume it.
388 */
389 if (!DBGFR3IsHalted(pUVM))
390 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The VM is already running");
391
392 int rc = DBGFR3Resume(pUVM);
393 if (RT_FAILURE(rc))
394 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3Resume");
395
396 NOREF(paArgs); NOREF(cArgs);
397 return VINF_SUCCESS;
398}
399
400
401/**
402 * @callback_method_impl{FNDBGCCMD, The 'ba' command.}
403 */
404static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
405{
406 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
407
408 /*
409 * Interpret access type.
410 */
411 if ( !strchr("xrwi", paArgs[0].u.pszString[0])
412 || paArgs[0].u.pszString[1])
413 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access type '%s' for '%s'. Valid types are 'e', 'r', 'w' and 'i'",
414 paArgs[0].u.pszString, pCmd->pszCmd);
415 uint8_t fType = 0;
416 switch (paArgs[0].u.pszString[0])
417 {
418 case 'x': fType = X86_DR7_RW_EO; break;
419 case 'r': fType = X86_DR7_RW_RW; break;
420 case 'w': fType = X86_DR7_RW_WO; break;
421 case 'i': fType = X86_DR7_RW_IO; break;
422 }
423
424 /*
425 * Validate size.
426 */
427 if (fType == X86_DR7_RW_EO && paArgs[1].u.u64Number != 1)
428 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 'x' access type requires size 1!",
429 paArgs[1].u.u64Number, pCmd->pszCmd);
430 switch (paArgs[1].u.u64Number)
431 {
432 case 1:
433 case 2:
434 case 4:
435 break;
436 /*case 8: - later*/
437 default:
438 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid access size %RX64 for '%s'. 1, 2 or 4!",
439 paArgs[1].u.u64Number, pCmd->pszCmd);
440 }
441 uint8_t cb = (uint8_t)paArgs[1].u.u64Number;
442
443 /*
444 * Convert the pointer to a DBGF address.
445 */
446 DBGFADDRESS Address;
447 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[2], &Address);
448 if (RT_FAILURE(rc))
449 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%DV,)", &paArgs[2]);
450
451 /*
452 * Pick out the optional arguments.
453 */
454 uint64_t iHitTrigger = 0;
455 uint64_t iHitDisable = ~0;
456 const char *pszCmds = NULL;
457 unsigned iArg = 3;
458 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
459 {
460 iHitTrigger = paArgs[iArg].u.u64Number;
461 iArg++;
462 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
463 {
464 iHitDisable = paArgs[iArg].u.u64Number;
465 iArg++;
466 }
467 }
468 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
469 {
470 pszCmds = paArgs[iArg].u.pszString;
471 iArg++;
472 }
473
474 /*
475 * Try set the breakpoint.
476 */
477 uint32_t iBp;
478 rc = DBGFR3BpSetReg(pUVM, &Address, iHitTrigger, iHitDisable, fType, cb, &iBp);
479 if (RT_SUCCESS(rc))
480 {
481 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
482 rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
483 if (RT_SUCCESS(rc))
484 return DBGCCmdHlpPrintf(pCmdHlp, "Set access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
485 if (rc == VERR_DBGC_BP_EXISTS)
486 {
487 rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
488 if (RT_SUCCESS(rc))
489 return DBGCCmdHlpPrintf(pCmdHlp, "Updated access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
490 }
491 int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
492 AssertRC(rc2);
493 }
494 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set access breakpoint at %RGv", Address.FlatPtr);
495}
496
497
498/**
499 * @callback_method_impl{FNDBGCCMD, The 'bc' command.}
500 */
501static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
502{
503 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
504
505 /*
506 * Enumerate the arguments.
507 */
508 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
509 int rc = VINF_SUCCESS;
510 for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
511 {
512 if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
513 {
514 /* one */
515 uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
516 if (iBp == paArgs[iArg].u.u64Number)
517 {
518 int rc2 = DBGFR3BpClear(pUVM, iBp);
519 if (RT_FAILURE(rc2))
520 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
521 if (RT_SUCCESS(rc2) || rc2 == VERR_DBGF_BP_NOT_FOUND)
522 dbgcBpDelete(pDbgc, iBp);
523 }
524 else
525 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
526 }
527 else if (!strcmp(paArgs[iArg].u.pszString, "all"))
528 {
529 /* all */
530 PDBGCBP pBp = pDbgc->pFirstBp;
531 while (pBp)
532 {
533 uint32_t iBp = pBp->iBp;
534 pBp = pBp->pNext;
535
536 int rc2 = DBGFR3BpClear(pUVM, iBp);
537 if (RT_FAILURE(rc2))
538 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpClear(,%#x)", iBp);
539 if (RT_SUCCESS(rc2) || rc2 == VERR_DBGF_BP_NOT_FOUND)
540 dbgcBpDelete(pDbgc, iBp);
541 }
542 }
543 else
544 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
545 }
546 return rc;
547}
548
549
550/**
551 * @callback_method_impl{FNDBGCCMD, The 'bd' command.}
552 */
553static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
554{
555 /*
556 * Enumerate the arguments.
557 */
558 int rc = VINF_SUCCESS;
559 for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
560 {
561 if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
562 {
563 /* one */
564 uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
565 if (iBp == paArgs[iArg].u.u64Number)
566 {
567 rc = DBGFR3BpDisable(pUVM, iBp);
568 if (RT_FAILURE(rc))
569 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpDisable failed for breakpoint %#x", iBp);
570 }
571 else
572 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
573 }
574 else if (!strcmp(paArgs[iArg].u.pszString, "all"))
575 {
576 /* all */
577 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
578 for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
579 {
580 int rc2 = DBGFR3BpDisable(pUVM, pBp->iBp);
581 if (RT_FAILURE(rc2))
582 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpDisable failed for breakpoint %#x", pBp->iBp);
583 }
584 }
585 else
586 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
587 }
588 return rc;
589}
590
591
592/**
593 * @callback_method_impl{FNDBGCCMD, The 'be' command.}
594 */
595static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
596{
597 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
598
599 /*
600 * Enumerate the arguments.
601 */
602 int rc = VINF_SUCCESS;
603 for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
604 {
605 if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
606 {
607 /* one */
608 uint32_t iBp = (uint32_t)paArgs[iArg].u.u64Number;
609 if (iBp == paArgs[iArg].u.u64Number)
610 {
611 rc = DBGFR3BpEnable(pUVM, iBp);
612 if (RT_FAILURE(rc))
613 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnable failed for breakpoint %#x", iBp);
614 }
615 else
616 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Breakpoint id %RX64 is too large", paArgs[iArg].u.u64Number);
617 }
618 else if (!strcmp(paArgs[iArg].u.pszString, "all"))
619 {
620 /* all */
621 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
622 for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
623 {
624 int rc2 = DBGFR3BpEnable(pUVM, pBp->iBp);
625 if (RT_FAILURE(rc2))
626 rc = DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc2, "DBGFR3BpEnable failed for breakpoint %#x", pBp->iBp);
627 }
628 }
629 else
630 rc = DBGCCmdHlpFail(pCmdHlp, pCmd, "Invalid argument '%s'", paArgs[iArg].u.pszString);
631 }
632 return rc;
633}
634
635
636/**
637 * Breakpoint enumeration callback function.
638 *
639 * @returns VBox status code. Any failure will stop the enumeration.
640 * @param pUVM The user mode VM handle.
641 * @param pvUser The user argument.
642 * @param pBp Pointer to the breakpoint information. (readonly)
643 */
644static DECLCALLBACK(int) dbgcEnumBreakpointsCallback(PUVM pUVM, void *pvUser, PCDBGFBP pBp)
645{
646 PDBGC pDbgc = (PDBGC)pvUser;
647 PDBGCBP pDbgcBp = dbgcBpGet(pDbgc, pBp->iBp);
648
649 /*
650 * BP type and size.
651 */
652 char chType;
653 char cb = 1;
654 switch (pBp->enmType)
655 {
656 case DBGFBPTYPE_INT3:
657 chType = 'p';
658 break;
659 case DBGFBPTYPE_REG:
660 switch (pBp->u.Reg.fType)
661 {
662 case X86_DR7_RW_EO: chType = 'x'; break;
663 case X86_DR7_RW_WO: chType = 'w'; break;
664 case X86_DR7_RW_IO: chType = 'i'; break;
665 case X86_DR7_RW_RW: chType = 'r'; break;
666 default: chType = '?'; break;
667
668 }
669 cb = pBp->u.Reg.cb;
670 break;
671 case DBGFBPTYPE_REM:
672 chType = 'r';
673 break;
674 default:
675 chType = '?';
676 break;
677 }
678
679 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%#4x %c %d %c %RGv %04RX64 (%04RX64 to ",
680 pBp->iBp, pBp->fEnabled ? 'e' : 'd', (int)cb, chType,
681 pBp->GCPtr, pBp->cHits, pBp->iHitTrigger);
682 if (pBp->iHitDisable == ~(uint64_t)0)
683 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "~0) ");
684 else
685 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%04RX64)", pBp->iHitDisable);
686
687 /*
688 * Try resolve the address.
689 */
690 RTDBGSYMBOL Sym;
691 RTINTPTR off;
692 DBGFADDRESS Addr;
693 int rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, pBp->GCPtr),
694 RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &off, &Sym, NULL);
695 if (RT_SUCCESS(rc))
696 {
697 if (!off)
698 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s", Sym.szName);
699 else if (off > 0)
700 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s+%RGv", Sym.szName, off);
701 else
702 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "%s-%RGv", Sym.szName, -off);
703 }
704
705 /*
706 * The commands.
707 */
708 if (pDbgcBp)
709 {
710 if (pDbgcBp->cchCmd)
711 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n cmds: '%s'\n", pDbgcBp->szCmd);
712 else
713 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, "\n");
714 }
715 else
716 DBGCCmdHlpPrintf(&pDbgc->CmdHlp, " [unknown bp]\n");
717
718 return VINF_SUCCESS;
719}
720
721
722/**
723 * @callback_method_impl{FNDBGCCMD, The 'bl' command.}
724 */
725static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
726{
727 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
728 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs == 0);
729 NOREF(paArgs);
730
731 /*
732 * Enumerate the breakpoints.
733 */
734 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
735 int rc = DBGFR3BpEnum(pUVM, dbgcEnumBreakpointsCallback, pDbgc);
736 if (RT_FAILURE(rc))
737 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGFR3BpEnum");
738 return rc;
739}
740
741
742/**
743 * @callback_method_impl{FNDBGCCMD, The 'bp' command.}
744 */
745static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
746{
747 /*
748 * Convert the pointer to a DBGF address.
749 */
750 DBGFADDRESS Address;
751 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
752 if (RT_FAILURE(rc))
753 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
754
755 /*
756 * Pick out the optional arguments.
757 */
758 uint64_t iHitTrigger = 0;
759 uint64_t iHitDisable = ~0;
760 const char *pszCmds = NULL;
761 unsigned iArg = 1;
762 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
763 {
764 iHitTrigger = paArgs[iArg].u.u64Number;
765 iArg++;
766 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
767 {
768 iHitDisable = paArgs[iArg].u.u64Number;
769 iArg++;
770 }
771 }
772 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
773 {
774 pszCmds = paArgs[iArg].u.pszString;
775 iArg++;
776 }
777
778 /*
779 * Try set the breakpoint.
780 */
781 uint32_t iBp;
782 rc = DBGFR3BpSet(pUVM, &Address, iHitTrigger, iHitDisable, &iBp);
783 if (RT_SUCCESS(rc))
784 {
785 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
786 rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
787 if (RT_SUCCESS(rc))
788 return DBGCCmdHlpPrintf(pCmdHlp, "Set breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
789 if (rc == VERR_DBGC_BP_EXISTS)
790 {
791 rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
792 if (RT_SUCCESS(rc))
793 return DBGCCmdHlpPrintf(pCmdHlp, "Updated breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
794 }
795 int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
796 AssertRC(rc2);
797 }
798 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set breakpoint at %RGv", Address.FlatPtr);
799}
800
801
802/**
803 * @callback_method_impl{FNDBGCCMD, The 'br' command.}
804 */
805static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
806{
807 /*
808 * Convert the pointer to a DBGF address.
809 */
810 DBGFADDRESS Address;
811 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
812 if (RT_FAILURE(rc))
813 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,'%DV',)", &paArgs[0]);
814
815 /*
816 * Pick out the optional arguments.
817 */
818 uint64_t iHitTrigger = 0;
819 uint64_t iHitDisable = ~0;
820 const char *pszCmds = NULL;
821 unsigned iArg = 1;
822 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
823 {
824 iHitTrigger = paArgs[iArg].u.u64Number;
825 iArg++;
826 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
827 {
828 iHitDisable = paArgs[iArg].u.u64Number;
829 iArg++;
830 }
831 }
832 if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
833 {
834 pszCmds = paArgs[iArg].u.pszString;
835 iArg++;
836 }
837
838 /*
839 * Try set the breakpoint.
840 */
841 uint32_t iBp;
842 rc = DBGFR3BpSetREM(pUVM, &Address, iHitTrigger, iHitDisable, &iBp);
843 if (RT_SUCCESS(rc))
844 {
845 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
846 rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
847 if (RT_SUCCESS(rc))
848 return DBGCCmdHlpPrintf(pCmdHlp, "Set REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
849 if (rc == VERR_DBGC_BP_EXISTS)
850 {
851 rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
852 if (RT_SUCCESS(rc))
853 return DBGCCmdHlpPrintf(pCmdHlp, "Updated REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
854 }
855 int rc2 = DBGFR3BpClear(pDbgc->pUVM, iBp);
856 AssertRC(rc2);
857 }
858 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Failed to set REM breakpoint at %RGv", Address.FlatPtr);
859}
860
861
862/**
863 * Helps the unassmble ('u') command display symbols it starts at and passes.
864 *
865 * @param pUVM The user mode VM handle.
866 * @param pCmdHlp The command helpers for printing via.
867 * @param hDbgAs The address space to look up addresses in.
868 * @param pAddress The current address.
869 * @param pcbCallAgain Where to return the distance to the next check (in
870 * instruction bytes).
871 */
872static void dbgcCmdUnassambleHelpListNear(PUVM pUVM, PDBGCCMDHLP pCmdHlp, RTDBGAS hDbgAs, PCDBGFADDRESS pAddress,
873 PRTUINTPTR pcbCallAgain)
874{
875 RTDBGSYMBOL Symbol;
876 RTGCINTPTR offDispSym;
877 int rc = DBGFR3AsSymbolByAddr(pUVM, hDbgAs, pAddress, RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &offDispSym, &Symbol, NULL);
878 if (RT_FAILURE(rc) || offDispSym > _1G)
879 rc = DBGFR3AsSymbolByAddr(pUVM, hDbgAs, pAddress, RTDBGSYMADDR_FLAGS_GREATER_OR_EQUAL, &offDispSym, &Symbol, NULL);
880 if (RT_SUCCESS(rc) && offDispSym < _1G)
881 {
882 if (!offDispSym)
883 {
884 DBGCCmdHlpPrintf(pCmdHlp, "%s:\n", Symbol.szName);
885 *pcbCallAgain = !Symbol.cb ? 64 : Symbol.cb;
886 }
887 else if (offDispSym > 0)
888 {
889 DBGCCmdHlpPrintf(pCmdHlp, "%s+%#llx:\n", Symbol.szName, (uint64_t)offDispSym);
890 *pcbCallAgain = !Symbol.cb ? 64 : Symbol.cb > (RTGCUINTPTR)offDispSym ? Symbol.cb - (RTGCUINTPTR)offDispSym : 1;
891 }
892 else
893 {
894 DBGCCmdHlpPrintf(pCmdHlp, "%s-%#llx:\n", Symbol.szName, (uint64_t)-offDispSym);
895 *pcbCallAgain = !Symbol.cb ? 64 : (RTGCUINTPTR)-offDispSym + Symbol.cb;
896 }
897 }
898 else
899 *pcbCallAgain = UINT32_MAX;
900}
901
902
903/**
904 * @callback_method_impl{FNDBGCCMD, The 'u' command.}
905 */
906static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
907{
908 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
909
910 /*
911 * Validate input.
912 */
913 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
914 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, -1, cArgs <= 1);
915 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 0 || DBGCVAR_ISPOINTER(paArgs[0].enmType));
916
917 if (!cArgs && !DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
918 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start disassembling");
919
920 /*
921 * Check the desired mode.
922 */
923 unsigned fFlags = DBGF_DISAS_FLAGS_NO_ADDRESS | DBGF_DISAS_FLAGS_UNPATCHED_BYTES | DBGF_DISAS_FLAGS_ANNOTATE_PATCHED;
924 switch (pCmd->pszCmd[1])
925 {
926 default: AssertFailed();
927 case '\0': fFlags |= DBGF_DISAS_FLAGS_DEFAULT_MODE; break;
928 case '6': fFlags |= DBGF_DISAS_FLAGS_64BIT_MODE; break;
929 case '3': fFlags |= DBGF_DISAS_FLAGS_32BIT_MODE; break;
930 case '1': fFlags |= DBGF_DISAS_FLAGS_16BIT_MODE; break;
931 case 'v': fFlags |= DBGF_DISAS_FLAGS_16BIT_REAL_MODE; break;
932 }
933
934 /** @todo should use DBGFADDRESS for everything */
935
936 /*
937 * Find address.
938 */
939 if (!cArgs)
940 {
941 if (!DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
942 {
943 /** @todo Batch query CS, RIP, CPU mode and flags. */
944 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
945 if ( pDbgc->fRegCtxGuest
946 && CPUMIsGuestIn64BitCode(pVCpu))
947 {
948 pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FLAT;
949 pDbgc->SourcePos.u.GCFlat = CPUMGetGuestRIP(pVCpu);
950 }
951 else
952 {
953 pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FAR;
954 pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
955 pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
956 if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_DEFAULT_MODE
957 && pDbgc->fRegCtxGuest
958 && (CPUMGetGuestEFlags(pVCpu) & X86_EFL_VM))
959 {
960 fFlags &= ~DBGF_DISAS_FLAGS_MODE_MASK;
961 fFlags |= DBGF_DISAS_FLAGS_16BIT_REAL_MODE;
962 }
963 }
964
965 if (pDbgc->fRegCtxGuest)
966 fFlags |= DBGF_DISAS_FLAGS_CURRENT_GUEST;
967 else
968 fFlags |= DBGF_DISAS_FLAGS_CURRENT_HYPER | DBGF_DISAS_FLAGS_HYPER;
969 }
970 else if ((fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_DEFAULT_MODE && pDbgc->fDisasm)
971 {
972 fFlags &= ~DBGF_DISAS_FLAGS_MODE_MASK;
973 fFlags |= pDbgc->fDisasm & (DBGF_DISAS_FLAGS_MODE_MASK | DBGF_DISAS_FLAGS_HYPER);
974 }
975 pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
976 }
977 else
978 pDbgc->DisasmPos = paArgs[0];
979 pDbgc->pLastPos = &pDbgc->DisasmPos;
980
981 /*
982 * Range.
983 */
984 switch (pDbgc->DisasmPos.enmRangeType)
985 {
986 case DBGCVAR_RANGE_NONE:
987 pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
988 pDbgc->DisasmPos.u64Range = 10;
989 break;
990
991 case DBGCVAR_RANGE_ELEMENTS:
992 if (pDbgc->DisasmPos.u64Range > 2048)
993 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Too many lines requested. Max is 2048 lines");
994 break;
995
996 case DBGCVAR_RANGE_BYTES:
997 if (pDbgc->DisasmPos.u64Range > 65536)
998 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The requested range is too big. Max is 64KB");
999 break;
1000
1001 default:
1002 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown range type %d", pDbgc->DisasmPos.enmRangeType);
1003 }
1004
1005 /*
1006 * Convert physical and host addresses to guest addresses.
1007 */
1008 RTDBGAS hDbgAs = pDbgc->hDbgAs;
1009 int rc;
1010 switch (pDbgc->DisasmPos.enmType)
1011 {
1012 case DBGCVAR_TYPE_GC_FLAT:
1013 case DBGCVAR_TYPE_GC_FAR:
1014 break;
1015 case DBGCVAR_TYPE_GC_PHYS:
1016 hDbgAs = DBGF_AS_PHYS;
1017 case DBGCVAR_TYPE_HC_FLAT:
1018 case DBGCVAR_TYPE_HC_PHYS:
1019 {
1020 DBGCVAR VarTmp;
1021 rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1022 if (RT_FAILURE(rc))
1023 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "failed to evaluate '%%(%Dv)'", &pDbgc->DisasmPos);
1024 pDbgc->DisasmPos = VarTmp;
1025 break;
1026 }
1027 default: AssertFailed(); break;
1028 }
1029
1030 DBGFADDRESS CurAddr;
1031 if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_16BIT_REAL_MODE
1032 && pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FAR)
1033 DBGFR3AddrFromFlat(pUVM, &CurAddr, ((uint32_t)pDbgc->DisasmPos.u.GCFar.sel << 4) + pDbgc->DisasmPos.u.GCFar.off);
1034 else
1035 {
1036 rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1037 if (RT_FAILURE(rc))
1038 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr failed on '%Dv'", &pDbgc->DisasmPos);
1039 }
1040
1041 if (CurAddr.fFlags & DBGFADDRESS_FLAGS_HMA)
1042 fFlags |= DBGF_DISAS_FLAGS_HYPER; /* This crap is due to not using DBGFADDRESS as DBGFR3Disas* input. */
1043 pDbgc->fDisasm = fFlags;
1044
1045 /*
1046 * Figure out where we are and display it. Also calculate when we need to
1047 * check for a new symbol if possible.
1048 */
1049 RTGCUINTPTR cbCheckSymbol;
1050 dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1051
1052 /*
1053 * Do the disassembling.
1054 */
1055 unsigned cTries = 32;
1056 int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1057 if (iRangeLeft == 0) /* kludge for 'r'. */
1058 iRangeLeft = -1;
1059 for (;;)
1060 {
1061 /*
1062 * Disassemble the instruction.
1063 */
1064 char szDis[256];
1065 uint32_t cbInstr = 1;
1066 if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1067 rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1068 &szDis[0], sizeof(szDis), &cbInstr);
1069 else
1070 rc = DBGFR3DisasInstrEx(pUVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1071 &szDis[0], sizeof(szDis), &cbInstr);
1072 if (RT_SUCCESS(rc))
1073 {
1074 /* print it */
1075 rc = DBGCCmdHlpPrintf(pCmdHlp, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1076 if (RT_FAILURE(rc))
1077 return rc;
1078 }
1079 else
1080 {
1081 /* bitch. */
1082 int rc2 = DBGCCmdHlpPrintf(pCmdHlp, "Failed to disassemble instruction, skipping one byte.\n");
1083 if (RT_FAILURE(rc2))
1084 return rc2;
1085 if (cTries-- > 0)
1086 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "Too many disassembly failures. Giving up");
1087 cbInstr = 1;
1088 }
1089
1090 /* advance */
1091 if (iRangeLeft < 0) /* 'r' */
1092 break;
1093 if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1094 iRangeLeft--;
1095 else
1096 iRangeLeft -= cbInstr;
1097 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1098 if (RT_FAILURE(rc))
1099 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpEval(,,'(%Dv) + %x')", &pDbgc->DisasmPos, cbInstr);
1100 if (iRangeLeft <= 0)
1101 break;
1102 fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST | DBGF_DISAS_FLAGS_CURRENT_HYPER);
1103
1104 /* Print next symbol? */
1105 if (cbCheckSymbol <= cbInstr)
1106 {
1107 if ( (fFlags & DBGF_DISAS_FLAGS_MODE_MASK) == DBGF_DISAS_FLAGS_16BIT_REAL_MODE
1108 && pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FAR)
1109 DBGFR3AddrFromFlat(pUVM, &CurAddr, ((uint32_t)pDbgc->DisasmPos.u.GCFar.sel << 4) + pDbgc->DisasmPos.u.GCFar.off);
1110 else
1111 rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->DisasmPos, &CurAddr);
1112 if (RT_SUCCESS(rc))
1113 dbgcCmdUnassambleHelpListNear(pUVM, pCmdHlp, hDbgAs, &CurAddr, &cbCheckSymbol);
1114 else
1115 cbCheckSymbol = UINT32_MAX;
1116 }
1117 else
1118 cbCheckSymbol -= cbInstr;
1119 }
1120
1121 NOREF(pCmd);
1122 return VINF_SUCCESS;
1123}
1124
1125
1126/**
1127 * @callback_method_impl{FNDBGCCMD, The 'ls' command.}
1128 */
1129static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1130{
1131 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1132
1133 /*
1134 * Validate input.
1135 */
1136 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
1137 if (cArgs == 1)
1138 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
1139 if (!pUVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1140 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Don't know where to start listing...");
1141 if (!pUVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1142 return DBGCCmdHlpFail(pCmdHlp, pCmd, "GC address but no VM");
1143
1144 /*
1145 * Find address.
1146 */
1147 if (!cArgs)
1148 {
1149 if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1150 {
1151 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
1152 pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1153 pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1154 pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1155 }
1156 pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1157 }
1158 else
1159 pDbgc->SourcePos = paArgs[0];
1160 pDbgc->pLastPos = &pDbgc->SourcePos;
1161
1162 /*
1163 * Ensure the source address is flat GC.
1164 */
1165 switch (pDbgc->SourcePos.enmType)
1166 {
1167 case DBGCVAR_TYPE_GC_FLAT:
1168 break;
1169 case DBGCVAR_TYPE_GC_PHYS:
1170 case DBGCVAR_TYPE_GC_FAR:
1171 case DBGCVAR_TYPE_HC_FLAT:
1172 case DBGCVAR_TYPE_HC_PHYS:
1173 {
1174 int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1175 if (RT_FAILURE(rc))
1176 return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid address or address type. (rc=%d)\n", rc);
1177 break;
1178 }
1179 default: AssertFailed(); break;
1180 }
1181
1182 /*
1183 * Range.
1184 */
1185 switch (pDbgc->SourcePos.enmRangeType)
1186 {
1187 case DBGCVAR_RANGE_NONE:
1188 pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1189 pDbgc->SourcePos.u64Range = 10;
1190 break;
1191
1192 case DBGCVAR_RANGE_ELEMENTS:
1193 if (pDbgc->SourcePos.u64Range > 2048)
1194 return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many lines requested. Max is 2048 lines.\n");
1195 break;
1196
1197 case DBGCVAR_RANGE_BYTES:
1198 if (pDbgc->SourcePos.u64Range > 65536)
1199 return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
1200 break;
1201
1202 default:
1203 return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1204 }
1205
1206 /*
1207 * Do the disassembling.
1208 */
1209 bool fFirst = 1;
1210 RTDBGLINE LinePrev = { 0, 0, 0, 0, 0, "" };
1211 int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1212 if (iRangeLeft == 0) /* kludge for 'r'. */
1213 iRangeLeft = -1;
1214 for (;;)
1215 {
1216 /*
1217 * Get line info.
1218 */
1219 RTDBGLINE Line;
1220 RTGCINTPTR off;
1221 DBGFADDRESS SourcePosAddr;
1222 int rc = DBGCCmdHlpVarToDbgfAddr(pCmdHlp, &pDbgc->SourcePos, &SourcePosAddr);
1223 if (RT_FAILURE(rc))
1224 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "DBGCCmdHlpVarToDbgfAddr(,%Dv)", &pDbgc->SourcePos);
1225 rc = DBGFR3AsLineByAddr(pUVM, pDbgc->hDbgAs, &SourcePosAddr, &off, &Line, NULL);
1226 if (RT_FAILURE(rc))
1227 return VINF_SUCCESS;
1228
1229 unsigned cLines = 0;
1230 if (memcmp(&Line, &LinePrev, sizeof(Line)))
1231 {
1232 /*
1233 * Print filenamename
1234 */
1235 if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1236 fFirst = true;
1237 if (fFirst)
1238 {
1239 rc = DBGCCmdHlpPrintf(pCmdHlp, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1240 if (RT_FAILURE(rc))
1241 return rc;
1242 }
1243
1244 /*
1245 * Try open the file and read the line.
1246 */
1247 FILE *phFile = fopen(Line.szFilename, "r");
1248 if (phFile)
1249 {
1250 /* Skip ahead to the desired line. */
1251 char szLine[4096];
1252 unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1253 if (cBefore > 7)
1254 cBefore = 0;
1255 unsigned cLeft = Line.uLineNo - cBefore;
1256 while (cLeft > 0)
1257 {
1258 szLine[0] = '\0';
1259 if (!fgets(szLine, sizeof(szLine), phFile))
1260 break;
1261 cLeft--;
1262 }
1263 if (!cLeft)
1264 {
1265 /* print the before lines */
1266 for (;;)
1267 {
1268 size_t cch = strlen(szLine);
1269 while (cch > 0 && (szLine[cch - 1] == '\r' || szLine[cch - 1] == '\n' || RT_C_IS_SPACE(szLine[cch - 1])) )
1270 szLine[--cch] = '\0';
1271 if (cBefore-- <= 0)
1272 break;
1273
1274 rc = DBGCCmdHlpPrintf(pCmdHlp, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1275 szLine[0] = '\0';
1276 (void)fgets(szLine, sizeof(szLine), phFile);
1277 cLines++;
1278 }
1279 /* print the actual line */
1280 rc = DBGCCmdHlpPrintf(pCmdHlp, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1281 }
1282 fclose(phFile);
1283 if (RT_FAILURE(rc))
1284 return rc;
1285 fFirst = false;
1286 }
1287 else
1288 return DBGCCmdHlpPrintf(pCmdHlp, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1289
1290 LinePrev = Line;
1291 }
1292
1293
1294 /*
1295 * Advance
1296 */
1297 if (iRangeLeft < 0) /* 'r' */
1298 break;
1299 if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1300 iRangeLeft -= cLines;
1301 else
1302 iRangeLeft -= 1;
1303 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1304 if (RT_FAILURE(rc))
1305 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1306 if (iRangeLeft <= 0)
1307 break;
1308 }
1309
1310 NOREF(pCmd);
1311 return 0;
1312}
1313
1314
1315/**
1316 * @callback_method_impl{FNDBGCCMD, The 'r' command.}
1317 */
1318static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1319{
1320 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1321 if (!pDbgc->fRegCtxGuest)
1322 return dbgcCmdRegHyper(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1323 return dbgcCmdRegGuest(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
1324}
1325
1326
1327/**
1328 * @callback_method_impl{FNDBGCCMD, Common worker for the dbgcCmdReg*()
1329 * commands.}
1330 */
1331static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs,
1332 const char *pszPrefix)
1333{
1334 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1335 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1 || cArgs == 2 || cArgs == 3);
1336 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_STRING
1337 || paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL);
1338
1339 /*
1340 * Parse the register name and kind.
1341 */
1342 const char *pszReg = paArgs[0].u.pszString;
1343 if (*pszReg == '@')
1344 pszReg++;
1345 VMCPUID idCpu = pDbgc->idCpu;
1346 if (*pszPrefix)
1347 idCpu |= DBGFREG_HYPER_VMCPUID;
1348 if (*pszReg == '.')
1349 {
1350 pszReg++;
1351 idCpu |= DBGFREG_HYPER_VMCPUID;
1352 }
1353 const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1354
1355 /*
1356 * Query the register type & value (the setter needs the type).
1357 */
1358 DBGFREGVALTYPE enmType;
1359 DBGFREGVAL Value;
1360 int rc = DBGFR3RegNmQuery(pUVM, idCpu, pszReg, &Value, &enmType);
1361 if (RT_FAILURE(rc))
1362 {
1363 if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1364 return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1365 pszActualPrefix, pszReg);
1366 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1367 pszActualPrefix, pszReg, rc);
1368 }
1369 if (cArgs == 1)
1370 {
1371 /*
1372 * Show the register.
1373 */
1374 char szValue[160];
1375 rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /*fSpecial*/);
1376 if (RT_SUCCESS(rc))
1377 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1378 else
1379 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1380 }
1381 else
1382 {
1383 DBGCVAR NewValueTmp;
1384 PCDBGCVAR pNewValue;
1385 if (cArgs == 3)
1386 {
1387 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 1, paArgs[1].enmType == DBGCVAR_TYPE_STRING);
1388 if (strcmp(paArgs[1].u.pszString, "="))
1389 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Second argument must be '='.");
1390 pNewValue = &paArgs[2];
1391 }
1392 else
1393 {
1394 /* Not possible to convince the parser to support both codeview and
1395 windbg syntax and make the equal sign optional. Try help it. */
1396 /** @todo make DBGCCmdHlpConvert do more with strings. */
1397 rc = DBGCCmdHlpConvert(pCmdHlp, &paArgs[1], DBGCVAR_TYPE_NUMBER, true /*fConvSyms*/, &NewValueTmp);
1398 if (RT_FAILURE(rc))
1399 return DBGCCmdHlpFailRc(pCmdHlp, pCmd, rc, "The last argument must be a value or valid symbol.");
1400 pNewValue = &NewValueTmp;
1401 }
1402
1403 /*
1404 * Modify the register.
1405 */
1406 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 1, pNewValue->enmType == DBGCVAR_TYPE_NUMBER);
1407 if (enmType != DBGFREGVALTYPE_DTR)
1408 {
1409 enmType = DBGFREGVALTYPE_U64;
1410 rc = DBGCCmdHlpVarToNumber(pCmdHlp, pNewValue, &Value.u64);
1411 }
1412 else
1413 {
1414 enmType = DBGFREGVALTYPE_DTR;
1415 rc = DBGCCmdHlpVarToNumber(pCmdHlp, pNewValue, &Value.dtr.u64Base);
1416 if (RT_SUCCESS(rc) && pNewValue->enmRangeType != DBGCVAR_RANGE_NONE)
1417 Value.dtr.u32Limit = (uint32_t)pNewValue->u64Range;
1418 }
1419 if (RT_SUCCESS(rc))
1420 {
1421 rc = DBGFR3RegNmSet(pUVM, idCpu, pszReg, &Value, enmType);
1422 if (RT_FAILURE(rc))
1423 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1424 pszActualPrefix, pszReg, rc);
1425 if (rc != VINF_SUCCESS)
1426 DBGCCmdHlpPrintf(pCmdHlp, "%s: warning: %Rrc\n", pCmd->pszCmd, rc);
1427 }
1428 else
1429 rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1430 }
1431 return rc;
1432}
1433
1434
1435/**
1436 * @callback_method_impl{FNDBGCCMD,
1437 * The 'rg'\, 'rg64' and 'rg32' commands\, worker for 'r'.}
1438 */
1439static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1440{
1441 /*
1442 * Show all registers our selves.
1443 */
1444 if (cArgs == 0)
1445 {
1446 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1447 bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1448 || ( strcmp(pCmd->pszCmd, "rg32") != 0
1449 && DBGFR3CpuIsIn64BitCode(pUVM, pDbgc->idCpu));
1450 char szDisAndRegs[8192];
1451 int rc;
1452
1453 if (pDbgc->fRegTerse)
1454 {
1455 if (f64BitMode)
1456 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1457 "u %016VR{rip} L 0\n"
1458 "rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1459 "rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1460 "r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1461 "r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1462 "rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1463 "cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1464 else
1465 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1466 "u %04VR{cs}:%08VR{eip} L 0\n"
1467 "eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1468 "eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1469 "cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1470 }
1471 else
1472 {
1473 if (f64BitMode)
1474 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1475 "u %016VR{rip} L 0\n"
1476 "rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1477 "rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1478 "r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1479 "r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1480 "rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1481 "cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1482 "ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1483 "es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1484 "fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1485 "gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1486 "ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1487 "dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1488 "dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1489 "gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1490 "ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1491 "tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1492 " sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1493 " efer=%016VR{efer}\n"
1494 " pat=%016VR{pat}\n"
1495 " sf_mask=%016VR{sf_mask}\n"
1496 "krnl_gs_base=%016VR{krnl_gs_base}\n"
1497 " lstar=%016VR{lstar}\n"
1498 " star=%016VR{star} cstar=%016VR{cstar}\n"
1499 "fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1500 );
1501 else
1502 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1503 "u %04VR{cs}:%08VR{eip} L 0\n"
1504 "eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1505 "eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1506 "cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1507 "ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1508 "es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr7=%08VR{dr7}\n"
1509 "fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr2}\n"
1510 "gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr3} cr4=%08VR{cr4}\n"
1511 "ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1512 "gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1513 "ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1514 "tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1515 "sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1516 "fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1517 );
1518 }
1519 if (RT_FAILURE(rc))
1520 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1521 char *pszRegs = strchr(szDisAndRegs, '\n');
1522 *pszRegs++ = '\0';
1523 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1524
1525 /*
1526 * Disassemble one instruction at cs:[r|e]ip.
1527 */
1528 if (!f64BitMode && strstr(pszRegs, " vm ")) /* a big ugly... */
1529 return pCmdHlp->pfnExec(pCmdHlp, "uv86 %s", szDisAndRegs + 2);
1530 return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1531 }
1532 return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, "");
1533}
1534
1535
1536/**
1537 * @callback_method_impl{FNDBGCCMD, The 'rh' command.}
1538 */
1539static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1540{
1541 /*
1542 * Show all registers our selves.
1543 */
1544 if (cArgs == 0)
1545 {
1546 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1547 char szDisAndRegs[8192];
1548 int rc;
1549
1550 if (pDbgc->fRegTerse)
1551 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu | DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1552 "u %VR{cs}:%VR{eip} L 0\n"
1553 ".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1554 ".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1555 ".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1556 else
1557 rc = DBGFR3RegPrintf(pUVM, pDbgc->idCpu | DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1558 "u %04VR{cs}:%08VR{eip} L 0\n"
1559 ".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1560 ".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1561 ".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1562 ".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1563 ".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1564 ".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1565 ".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1566 ".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1567 ".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1568 ".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1569 ".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1570 );
1571 if (RT_FAILURE(rc))
1572 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1573 char *pszRegs = strchr(szDisAndRegs, '\n');
1574 *pszRegs++ = '\0';
1575 rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1576
1577 /*
1578 * Disassemble one instruction at cs:[r|e]ip.
1579 */
1580 return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1581 }
1582 return dbgcCmdRegCommon(pCmd, pCmdHlp, pUVM, paArgs, cArgs, ".");
1583}
1584
1585
1586/**
1587 * @callback_method_impl{FNDBGCCMD, The 'rt' command.}
1588 */
1589static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1590{
1591 NOREF(pCmd); NOREF(pUVM); NOREF(paArgs); NOREF(cArgs);
1592
1593 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1594 pDbgc->fRegTerse = !pDbgc->fRegTerse;
1595 return DBGCCmdHlpPrintf(pCmdHlp, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1596}
1597
1598
1599/**
1600 * @callback_method_impl{FNDBGCCMD, The 't' command.}
1601 */
1602static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1603{
1604 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1605
1606 int rc = DBGFR3Step(pUVM, pDbgc->idCpu);
1607 if (RT_SUCCESS(rc))
1608 pDbgc->fReady = false;
1609 else
1610 rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1611
1612 NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
1613 return rc;
1614}
1615
1616
1617/**
1618 * @callback_method_impl{FNDBGCCMD, The 'k'\, 'kg' and 'kh' commands.}
1619 */
1620static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
1621{
1622 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1623
1624 /*
1625 * Figure which context we're called for and start walking that stack.
1626 */
1627 int rc;
1628 PCDBGFSTACKFRAME pFirstFrame;
1629 bool const fGuest = pCmd->pszCmd[1] == 'g'
1630 || (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1631 rc = DBGFR3StackWalkBegin(pUVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1632 if (RT_FAILURE(rc))
1633 return DBGCCmdHlpPrintf(pCmdHlp, "Failed to begin stack walk, rc=%Rrc\n", rc);
1634
1635 /*
1636 * Print header.
1637 * 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1638 */
1639 uint32_t fBitFlags = 0;
1640 for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1641 pFrame;
1642 pFrame = DBGFR3StackWalkNext(pFrame))
1643 {
1644 uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT | DBGFSTACKFRAME_FLAGS_32BIT | DBGFSTACKFRAME_FLAGS_64BIT);
1645 if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1646 {
1647 if (fCurBitFlags != fBitFlags)
1648 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1649 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1650 pFrame->AddrFrame.Sel,
1651 (uint16_t)pFrame->AddrFrame.off,
1652 pFrame->AddrReturnFrame.Sel,
1653 (uint16_t)pFrame->AddrReturnFrame.off,
1654 (uint32_t)pFrame->AddrReturnPC.Sel,
1655 (uint32_t)pFrame->AddrReturnPC.off,
1656 pFrame->Args.au32[0],
1657 pFrame->Args.au32[1],
1658 pFrame->Args.au32[2],
1659 pFrame->Args.au32[3]);
1660 }
1661 else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1662 {
1663 if (fCurBitFlags != fBitFlags)
1664 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1665 rc = DBGCCmdHlpPrintf(pCmdHlp, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1666 (uint32_t)pFrame->AddrFrame.off,
1667 (uint32_t)pFrame->AddrReturnFrame.off,
1668 (uint32_t)pFrame->AddrReturnPC.Sel,
1669 (uint32_t)pFrame->AddrReturnPC.off,
1670 pFrame->Args.au32[0],
1671 pFrame->Args.au32[1],
1672 pFrame->Args.au32[2],
1673 pFrame->Args.au32[3]);
1674 }
1675 else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1676 {
1677 if (fCurBitFlags != fBitFlags)
1678 pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1679 rc = DBGCCmdHlpPrintf(pCmdHlp, "%016RX64 %04RX16:%016RX64 %016RX64",
1680 (uint64_t)pFrame->AddrFrame.off,
1681 pFrame->AddrReturnFrame.Sel,
1682 (uint64_t)pFrame->AddrReturnFrame.off,
1683 (uint64_t)pFrame->AddrReturnPC.off);
1684 }
1685 if (RT_FAILURE(rc))
1686 break;
1687 if (!pFrame->pSymPC)
1688 rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1689 fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1690 ? " %RTsel:%016RGv"
1691 : fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT
1692 ? " %RTsel:%08RGv"
1693 : " %RTsel:%04RGv"
1694 , pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1695 else
1696 {
1697 RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1698 if (offDisp > 0)
1699 rc = DBGCCmdHlpPrintf(pCmdHlp, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1700 else if (offDisp < 0)
1701 rc = DBGCCmdHlpPrintf(pCmdHlp, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1702 else
1703 rc = DBGCCmdHlpPrintf(pCmdHlp, " %s", pFrame->pSymPC->szName);
1704 }
1705 if (RT_SUCCESS(rc) && pFrame->pLinePC)
1706 rc = DBGCCmdHlpPrintf(pCmdHlp, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1707 if (RT_SUCCESS(rc))
1708 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
1709 if (RT_FAILURE(rc))
1710 break;
1711
1712 fBitFlags = fCurBitFlags;
1713 }
1714
1715 DBGFR3StackWalkEnd(pFirstFrame);
1716
1717 NOREF(paArgs); NOREF(cArgs);
1718 return rc;
1719}
1720
1721
1722static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1723{
1724 /* GUEST64 */
1725 int rc;
1726
1727 const char *pszHyper = fHyper ? " HYPER" : "";
1728 const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1729 if (pDesc->Gen.u1DescType)
1730 {
1731 static const char * const s_apszTypes[] =
1732 {
1733 "DataRO", /* 0 Read-Only */
1734 "DataRO", /* 1 Read-Only - Accessed */
1735 "DataRW", /* 2 Read/Write */
1736 "DataRW", /* 3 Read/Write - Accessed */
1737 "DownRO", /* 4 Expand-down, Read-Only */
1738 "DownRO", /* 5 Expand-down, Read-Only - Accessed */
1739 "DownRW", /* 6 Expand-down, Read/Write */
1740 "DownRW", /* 7 Expand-down, Read/Write - Accessed */
1741 "CodeEO", /* 8 Execute-Only */
1742 "CodeEO", /* 9 Execute-Only - Accessed */
1743 "CodeER", /* A Execute/Readable */
1744 "CodeER", /* B Execute/Readable - Accessed */
1745 "ConfE0", /* C Conforming, Execute-Only */
1746 "ConfE0", /* D Conforming, Execute-Only - Accessed */
1747 "ConfER", /* E Conforming, Execute/Readable */
1748 "ConfER" /* F Conforming, Execute/Readable - Accessed */
1749 };
1750 const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1751 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1752 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1753 uint32_t u32Base = X86DESC_BASE(pDesc);
1754 uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1755
1756 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1757 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1758 pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1759 pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1760 }
1761 else
1762 {
1763 static const char * const s_apszTypes[] =
1764 {
1765 "Ill-0 ", /* 0 0000 Reserved (Illegal) */
1766 "Ill-1 ", /* 1 0001 Available 16-bit TSS */
1767 "LDT ", /* 2 0010 LDT */
1768 "Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1769 "Ill-4 ", /* 4 0100 16-bit Call Gate */
1770 "Ill-5 ", /* 5 0101 Task Gate */
1771 "Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1772 "Ill-7 ", /* 7 0111 16-bit Trap Gate */
1773 "Ill-8 ", /* 8 1000 Reserved (Illegal) */
1774 "Tss64A", /* 9 1001 Available 32-bit TSS */
1775 "Ill-A ", /* A 1010 Reserved (Illegal) */
1776 "Tss64B", /* B 1011 Busy 32-bit TSS */
1777 "Call64", /* C 1100 32-bit Call Gate */
1778 "Ill-D ", /* D 1101 Reserved (Illegal) */
1779 "Int64 ", /* E 1110 32-bit Interrupt Gate */
1780 "Trap64" /* F 1111 32-bit Trap Gate */
1781 };
1782 switch (pDesc->Gen.u4Type)
1783 {
1784 /* raw */
1785 case X86_SEL_TYPE_SYS_UNDEFINED:
1786 case X86_SEL_TYPE_SYS_UNDEFINED2:
1787 case X86_SEL_TYPE_SYS_UNDEFINED4:
1788 case X86_SEL_TYPE_SYS_UNDEFINED3:
1789 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1790 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1791 case X86_SEL_TYPE_SYS_286_CALL_GATE:
1792 case X86_SEL_TYPE_SYS_286_INT_GATE:
1793 case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1794 case X86_SEL_TYPE_SYS_TASK_GATE:
1795 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1796 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1797 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1798 break;
1799
1800 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1801 case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1802 case X86_SEL_TYPE_SYS_LDT:
1803 {
1804 const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1805 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1806 const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1807
1808 uint64_t u64Base = X86DESC64_BASE(pDesc);
1809 uint32_t cbLimit = X86DESC_LIMIT_G(pDesc);
1810
1811 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1812 iEntry, s_apszTypes[pDesc->Gen.u4Type], u64Base, cbLimit,
1813 pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1814 pDesc->Gen.u1Available, pDesc->Gen.u1Long | (pDesc->Gen.u1DefBig << 1),
1815 pszHyper);
1816 if (pfDblEntry)
1817 *pfDblEntry = true;
1818 break;
1819 }
1820
1821 case X86_SEL_TYPE_SYS_386_CALL_GATE:
1822 {
1823 unsigned cParams = pDesc->au8[4] & 0x1f;
1824 const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1825 RTSEL sel = pDesc->au16[1];
1826 uint64_t off = pDesc->au16[0]
1827 | ((uint64_t)pDesc->au16[3] << 16)
1828 | ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1829 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1830 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1831 pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1832 if (pfDblEntry)
1833 *pfDblEntry = true;
1834 break;
1835 }
1836
1837 case X86_SEL_TYPE_SYS_386_INT_GATE:
1838 case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1839 {
1840 RTSEL sel = pDesc->au16[1];
1841 uint64_t off = pDesc->au16[0]
1842 | ((uint64_t)pDesc->au16[3] << 16)
1843 | ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1844 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1845 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1846 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1847 if (pfDblEntry)
1848 *pfDblEntry = true;
1849 break;
1850 }
1851
1852 /* impossible, just it's necessary to keep gcc happy. */
1853 default:
1854 return VINF_SUCCESS;
1855 }
1856 }
1857 return VINF_SUCCESS;
1858}
1859
1860
1861/**
1862 * Worker function that displays one descriptor entry (GDT, LDT, IDT).
1863 *
1864 * @returns pfnPrintf status code.
1865 * @param pCmdHlp The DBGC command helpers.
1866 * @param pDesc The descriptor to display.
1867 * @param iEntry The descriptor entry number.
1868 * @param fHyper Whether the selector belongs to the hypervisor or not.
1869 */
1870static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1871{
1872 int rc;
1873
1874 const char *pszHyper = fHyper ? " HYPER" : "";
1875 const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1876 if (pDesc->Gen.u1DescType)
1877 {
1878 static const char * const s_apszTypes[] =
1879 {
1880 "DataRO", /* 0 Read-Only */
1881 "DataRO", /* 1 Read-Only - Accessed */
1882 "DataRW", /* 2 Read/Write */
1883 "DataRW", /* 3 Read/Write - Accessed */
1884 "DownRO", /* 4 Expand-down, Read-Only */
1885 "DownRO", /* 5 Expand-down, Read-Only - Accessed */
1886 "DownRW", /* 6 Expand-down, Read/Write */
1887 "DownRW", /* 7 Expand-down, Read/Write - Accessed */
1888 "CodeEO", /* 8 Execute-Only */
1889 "CodeEO", /* 9 Execute-Only - Accessed */
1890 "CodeER", /* A Execute/Readable */
1891 "CodeER", /* B Execute/Readable - Accessed */
1892 "ConfE0", /* C Conforming, Execute-Only */
1893 "ConfE0", /* D Conforming, Execute-Only - Accessed */
1894 "ConfER", /* E Conforming, Execute/Readable */
1895 "ConfER" /* F Conforming, Execute/Readable - Accessed */
1896 };
1897 const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1898 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1899 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1900 uint32_t u32Base = pDesc->Gen.u16BaseLow
1901 | ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1902 | ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1903 uint32_t cbLimit = pDesc->Gen.u16LimitLow | (pDesc->Gen.u4LimitHigh << 16);
1904 if (pDesc->Gen.u1Granularity)
1905 cbLimit <<= PAGE_SHIFT;
1906
1907 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1908 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1909 pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1910 pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1911 }
1912 else
1913 {
1914 static const char * const s_apszTypes[] =
1915 {
1916 "Ill-0 ", /* 0 0000 Reserved (Illegal) */
1917 "Tss16A", /* 1 0001 Available 16-bit TSS */
1918 "LDT ", /* 2 0010 LDT */
1919 "Tss16B", /* 3 0011 Busy 16-bit TSS */
1920 "Call16", /* 4 0100 16-bit Call Gate */
1921 "TaskG ", /* 5 0101 Task Gate */
1922 "Int16 ", /* 6 0110 16-bit Interrupt Gate */
1923 "Trap16", /* 7 0111 16-bit Trap Gate */
1924 "Ill-8 ", /* 8 1000 Reserved (Illegal) */
1925 "Tss32A", /* 9 1001 Available 32-bit TSS */
1926 "Ill-A ", /* A 1010 Reserved (Illegal) */
1927 "Tss32B", /* B 1011 Busy 32-bit TSS */
1928 "Call32", /* C 1100 32-bit Call Gate */
1929 "Ill-D ", /* D 1101 Reserved (Illegal) */
1930 "Int32 ", /* E 1110 32-bit Interrupt Gate */
1931 "Trap32" /* F 1111 32-bit Trap Gate */
1932 };
1933 switch (pDesc->Gen.u4Type)
1934 {
1935 /* raw */
1936 case X86_SEL_TYPE_SYS_UNDEFINED:
1937 case X86_SEL_TYPE_SYS_UNDEFINED2:
1938 case X86_SEL_TYPE_SYS_UNDEFINED4:
1939 case X86_SEL_TYPE_SYS_UNDEFINED3:
1940 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1941 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1942 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1943 break;
1944
1945 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1946 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1947 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1948 case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1949 case X86_SEL_TYPE_SYS_LDT:
1950 {
1951 const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1952 const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1953 const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1954 uint32_t u32Base = pDesc->Gen.u16BaseLow
1955 | ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1956 | ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1957 uint32_t cbLimit = pDesc->Gen.u16LimitLow | (pDesc->Gen.u4LimitHigh << 16);
1958 if (pDesc->Gen.u1Granularity)
1959 cbLimit <<= PAGE_SHIFT;
1960
1961 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1962 iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1963 pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1964 pDesc->Gen.u1Available, pDesc->Gen.u1Long | (pDesc->Gen.u1DefBig << 1),
1965 pszHyper);
1966 break;
1967 }
1968
1969 case X86_SEL_TYPE_SYS_TASK_GATE:
1970 {
1971 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s TSS=%04x DPL=%d %s%s\n",
1972 iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1973 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1974 break;
1975 }
1976
1977 case X86_SEL_TYPE_SYS_286_CALL_GATE:
1978 case X86_SEL_TYPE_SYS_386_CALL_GATE:
1979 {
1980 unsigned cParams = pDesc->au8[4] & 0x1f;
1981 const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1982 RTSEL sel = pDesc->au16[1];
1983 uint32_t off = pDesc->au16[0] | ((uint32_t)pDesc->au16[3] << 16);
1984 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
1985 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1986 pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1987 break;
1988 }
1989
1990 case X86_SEL_TYPE_SYS_286_INT_GATE:
1991 case X86_SEL_TYPE_SYS_386_INT_GATE:
1992 case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1993 case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1994 {
1995 RTSEL sel = pDesc->au16[1];
1996 uint32_t off = pDesc->au16[0] | ((uint32_t)pDesc->au16[3] << 16);
1997 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
1998 iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1999 pDesc->Gen.u2Dpl, pszPresent, pszHyper);
2000 break;
2001 }
2002
2003 /* impossible, just it's necessary to keep gcc happy. */
2004 default:
2005 return VINF_SUCCESS;
2006 }
2007 }
2008 return rc;
2009}
2010
2011
2012/**
2013 * @callback_method_impl{FNDBGCCMD, The 'dg'\, 'dga'\, 'dl' and 'dla' commands.}
2014 */
2015static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2016{
2017 /*
2018 * Validate input.
2019 */
2020 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2021
2022 /*
2023 * Get the CPU mode, check which command variation this is
2024 * and fix a default parameter if needed.
2025 */
2026 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2027 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2028 CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2029 bool fGdt = pCmd->pszCmd[1] == 'g';
2030 bool fAll = pCmd->pszCmd[2] == 'a';
2031 RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
2032
2033 DBGCVAR Var;
2034 if (!cArgs)
2035 {
2036 cArgs = 1;
2037 paArgs = &Var;
2038 Var.enmType = DBGCVAR_TYPE_NUMBER;
2039 Var.u.u64Number = 0;
2040 Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2041 Var.u64Range = 1024;
2042 }
2043
2044 /*
2045 * Process the arguments.
2046 */
2047 for (unsigned i = 0; i < cArgs; i++)
2048 {
2049 /*
2050 * Retrieve the selector value from the argument.
2051 * The parser may confuse pointers and numbers if more than one
2052 * argument is given, that that into account.
2053 */
2054 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER || DBGCVAR_ISPOINTER(paArgs[i].enmType));
2055 uint64_t u64;
2056 unsigned cSels = 1;
2057 switch (paArgs[i].enmType)
2058 {
2059 case DBGCVAR_TYPE_NUMBER:
2060 u64 = paArgs[i].u.u64Number;
2061 if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2062 cSels = RT_MIN(paArgs[i].u64Range, 1024);
2063 break;
2064 case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2065 case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2066 case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2067 case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2068 case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2069 default: u64 = _64K; break;
2070 }
2071 if (u64 < _64K)
2072 {
2073 unsigned Sel = (RTSEL)u64;
2074
2075 /*
2076 * Dump the specified range.
2077 */
2078 bool fSingle = cSels == 1;
2079 while ( cSels-- > 0
2080 && Sel < _64K)
2081 {
2082 DBGFSELINFO SelInfo;
2083 int rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, Sel | SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2084 if (RT_SUCCESS(rc))
2085 {
2086 if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2087 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x RealM Bas=%04x Lim=%04x\n",
2088 Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2089 else if ( fAll
2090 || fSingle
2091 || SelInfo.u.Raw.Gen.u1Present)
2092 {
2093 if (enmMode == CPUMMODE_PROTECTED)
2094 rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2095 else
2096 {
2097 bool fDblSkip = false;
2098 rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2099 if (fDblSkip)
2100 Sel += 4;
2101 }
2102 }
2103 }
2104 else
2105 {
2106 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %Rrc\n", Sel, rc);
2107 if (!fAll)
2108 return rc;
2109 }
2110 if (RT_FAILURE(rc))
2111 return rc;
2112
2113 /* next */
2114 Sel += 8;
2115 }
2116 }
2117 else
2118 DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds\n", u64);
2119 }
2120
2121 return VINF_SUCCESS;
2122}
2123
2124
2125/**
2126 * @callback_method_impl{FNDBGCCMD, The 'di' and 'dia' commands.}
2127 */
2128static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2129{
2130 /*
2131 * Validate input.
2132 */
2133 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2134
2135 /*
2136 * Establish some stuff like the current IDTR and CPU mode,
2137 * and fix a default parameter.
2138 */
2139 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2140 PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, pDbgc->idCpu);
2141 uint16_t cbLimit;
2142 RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2143 CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2144 unsigned cbEntry;
2145 switch (enmMode)
2146 {
2147 case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2148 case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2149 case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2150 default:
2151 return DBGCCmdHlpPrintf(pCmdHlp, "error: Invalid CPU mode %d.\n", enmMode);
2152 }
2153
2154 bool fAll = pCmd->pszCmd[2] == 'a';
2155 DBGCVAR Var;
2156 if (!cArgs)
2157 {
2158 cArgs = 1;
2159 paArgs = &Var;
2160 Var.enmType = DBGCVAR_TYPE_NUMBER;
2161 Var.u.u64Number = 0;
2162 Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2163 Var.u64Range = 256;
2164 }
2165
2166 /*
2167 * Process the arguments.
2168 */
2169 for (unsigned i = 0; i < cArgs; i++)
2170 {
2171 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, i, paArgs[i].enmType == DBGCVAR_TYPE_NUMBER);
2172 if (paArgs[i].u.u64Number < 256)
2173 {
2174 RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2175 unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2176 ? paArgs[i].u64Range
2177 : 1;
2178 bool fSingle = cInts == 1;
2179 while ( cInts-- > 0
2180 && iInt < 256)
2181 {
2182 /*
2183 * Try read it.
2184 */
2185 union
2186 {
2187 RTFAR16 Real;
2188 X86DESC Prot;
2189 X86DESC64 Long;
2190 } u;
2191 if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2192 {
2193 DBGCCmdHlpPrintf(pCmdHlp, "%04x not within the IDT\n", (unsigned)iInt);
2194 if (!fAll && !fSingle)
2195 return VINF_SUCCESS;
2196 }
2197 DBGCVAR AddrVar;
2198 AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2199 AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2200 AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2201 int rc = pCmdHlp->pfnMemRead(pCmdHlp, &u, cbEntry, &AddrVar, NULL);
2202 if (RT_FAILURE(rc))
2203 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2204
2205 /*
2206 * Display it.
2207 */
2208 switch (enmMode)
2209 {
2210 case CPUMMODE_REAL:
2211 rc = DBGCCmdHlpPrintf(pCmdHlp, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2212 /** @todo resolve 16:16 IDTE to a symbol */
2213 break;
2214 case CPUMMODE_PROTECTED:
2215 if (fAll || fSingle || u.Prot.Gen.u1Present)
2216 rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2217 break;
2218 case CPUMMODE_LONG:
2219 if (fAll || fSingle || u.Long.Gen.u1Present)
2220 rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2221 break;
2222 default: break; /* to shut up gcc */
2223 }
2224 if (RT_FAILURE(rc))
2225 return rc;
2226
2227 /* next */
2228 iInt++;
2229 }
2230 }
2231 else
2232 DBGCCmdHlpPrintf(pCmdHlp, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2233 }
2234
2235 return VINF_SUCCESS;
2236}
2237
2238
2239/**
2240 * @callback_method_impl{FNDBGCCMD,
2241 * The 'da'\, 'dq'\, 'dd'\, 'dw' and 'db' commands.}
2242 */
2243static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2244{
2245 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2246
2247 /*
2248 * Validate input.
2249 */
2250 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2251 if (cArgs == 1)
2252 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2253 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2254
2255 /*
2256 * Figure out the element size.
2257 */
2258 unsigned cbElement;
2259 bool fAscii = false;
2260 switch (pCmd->pszCmd[1])
2261 {
2262 default:
2263 case 'b': cbElement = 1; break;
2264 case 'w': cbElement = 2; break;
2265 case 'd': cbElement = 4; break;
2266 case 'q': cbElement = 8; break;
2267 case 'a':
2268 cbElement = 1;
2269 fAscii = true;
2270 break;
2271 case '\0':
2272 fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2273 cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2274 if (!cbElement)
2275 cbElement = 1;
2276 break;
2277 }
2278
2279 /*
2280 * Find address.
2281 */
2282 if (!cArgs)
2283 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2284 else
2285 pDbgc->DumpPos = paArgs[0];
2286
2287 /*
2288 * Range.
2289 */
2290 switch (pDbgc->DumpPos.enmRangeType)
2291 {
2292 case DBGCVAR_RANGE_NONE:
2293 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2294 pDbgc->DumpPos.u64Range = 0x60;
2295 break;
2296
2297 case DBGCVAR_RANGE_ELEMENTS:
2298 if (pDbgc->DumpPos.u64Range > 2048)
2299 return DBGCCmdHlpPrintf(pCmdHlp, "error: Too many elements requested. Max is 2048 elements.\n");
2300 pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2301 pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2302 break;
2303
2304 case DBGCVAR_RANGE_BYTES:
2305 if (pDbgc->DumpPos.u64Range > 65536)
2306 return DBGCCmdHlpPrintf(pCmdHlp, "error: The requested range is too big. Max is 64KB.\n");
2307 break;
2308
2309 default:
2310 return DBGCCmdHlpPrintf(pCmdHlp, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2311 }
2312
2313 pDbgc->pLastPos = &pDbgc->DumpPos;
2314
2315 /*
2316 * Do the dumping.
2317 */
2318 pDbgc->cbDumpElement = cbElement | (fAscii << 31);
2319 int cbLeft = (int)pDbgc->DumpPos.u64Range;
2320 uint8_t u8Prev = '\0';
2321 for (;;)
2322 {
2323 /*
2324 * Read memory.
2325 */
2326 char achBuffer[16];
2327 size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2328 size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2329 int rc = pCmdHlp->pfnMemRead(pCmdHlp, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2330 if (RT_FAILURE(rc))
2331 {
2332 if (u8Prev && u8Prev != '\n')
2333 DBGCCmdHlpPrintf(pCmdHlp, "\n");
2334 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2335 }
2336
2337 /*
2338 * Display it.
2339 */
2340 memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2341 if (!fAscii)
2342 {
2343 DBGCCmdHlpPrintf(pCmdHlp, "%DV:", &pDbgc->DumpPos);
2344 unsigned i;
2345 for (i = 0; i < cb; i += cbElement)
2346 {
2347 const char *pszSpace = " ";
2348 if (cbElement <= 2 && i == 8 && !fAscii)
2349 pszSpace = "-";
2350 switch (cbElement)
2351 {
2352 case 1: DBGCCmdHlpPrintf(pCmdHlp, "%s%02x", pszSpace, *(uint8_t *)&achBuffer[i]); break;
2353 case 2: DBGCCmdHlpPrintf(pCmdHlp, "%s%04x", pszSpace, *(uint16_t *)&achBuffer[i]); break;
2354 case 4: DBGCCmdHlpPrintf(pCmdHlp, "%s%08x", pszSpace, *(uint32_t *)&achBuffer[i]); break;
2355 case 8: DBGCCmdHlpPrintf(pCmdHlp, "%s%016llx", pszSpace, *(uint64_t *)&achBuffer[i]); break;
2356 }
2357 }
2358
2359 /* chars column */
2360 if (pDbgc->cbDumpElement == 1)
2361 {
2362 while (i++ < sizeof(achBuffer))
2363 DBGCCmdHlpPrintf(pCmdHlp, " ");
2364 DBGCCmdHlpPrintf(pCmdHlp, " ");
2365 for (i = 0; i < cb; i += cbElement)
2366 {
2367 uint8_t u8 = *(uint8_t *)&achBuffer[i];
2368 if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2369 DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2370 else
2371 DBGCCmdHlpPrintf(pCmdHlp, ".");
2372 }
2373 }
2374 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2375 }
2376 else
2377 {
2378 /*
2379 * We print up to the first zero and stop there.
2380 * Only printables + '\t' and '\n' are printed.
2381 */
2382 if (!u8Prev)
2383 DBGCCmdHlpPrintf(pCmdHlp, "%DV:\n", &pDbgc->DumpPos);
2384 uint8_t u8 = '\0';
2385 unsigned i;
2386 for (i = 0; i < cb; i++)
2387 {
2388 u8Prev = u8;
2389 u8 = *(uint8_t *)&achBuffer[i];
2390 if ( u8 < 127
2391 && ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2392 || u8 == '\t'
2393 || u8 == '\n'))
2394 DBGCCmdHlpPrintf(pCmdHlp, "%c", u8);
2395 else if (!u8)
2396 break;
2397 else
2398 DBGCCmdHlpPrintf(pCmdHlp, "\\x%x", u8);
2399 }
2400 if (u8 == '\0')
2401 cb = cbLeft = i + 1;
2402 if (cbLeft - cb <= 0 && u8Prev != '\n')
2403 DBGCCmdHlpPrintf(pCmdHlp, "\n");
2404 }
2405
2406 /*
2407 * Advance
2408 */
2409 cbLeft -= (int)cb;
2410 rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2411 if (RT_FAILURE(rc))
2412 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2413 if (cbLeft <= 0)
2414 break;
2415 }
2416
2417 NOREF(pCmd);
2418 return VINF_SUCCESS;
2419}
2420
2421
2422/**
2423 * Best guess at which paging mode currently applies to the guest
2424 * paging structures.
2425 *
2426 * This have to come up with a decent answer even when the guest
2427 * is in non-paged protected mode or real mode.
2428 *
2429 * @returns cr3.
2430 * @param pDbgc The DBGC instance.
2431 * @param pfPAE Where to store the page address extension indicator.
2432 * @param pfLME Where to store the long mode enabled indicator.
2433 * @param pfPSE Where to store the page size extension indicator.
2434 * @param pfPGE Where to store the page global enabled indicator.
2435 * @param pfNXE Where to store the no-execution enabled indicator.
2436 */
2437static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool *pfPAE, bool *pfLME, bool *pfPSE, bool *pfPGE, bool *pfNXE)
2438{
2439 PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2440 RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2441 *pfPSE = !!(cr4 & X86_CR4_PSE);
2442 *pfPGE = !!(cr4 & X86_CR4_PGE);
2443 if (cr4 & X86_CR4_PAE)
2444 {
2445 *pfPSE = true;
2446 *pfPAE = true;
2447 }
2448 else
2449 *pfPAE = false;
2450
2451 *pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2452 *pfNXE = false; /* GUEST64 GUESTNX */
2453 return CPUMGetGuestCR3(pVCpu);
2454}
2455
2456
2457/**
2458 * Determine the shadow paging mode.
2459 *
2460 * @returns cr3.
2461 * @param pDbgc The DBGC instance.
2462 * @param pfPAE Where to store the page address extension indicator.
2463 * @param pfLME Where to store the long mode enabled indicator.
2464 * @param pfPSE Where to store the page size extension indicator.
2465 * @param pfPGE Where to store the page global enabled indicator.
2466 * @param pfNXE Where to store the no-execution enabled indicator.
2467 */
2468static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool *pfPAE, bool *pfLME, bool *pfPSE, bool *pfPGE, bool *pfNXE)
2469{
2470 PVMCPU pVCpu = VMMR3GetCpuByIdU(pDbgc->pUVM, pDbgc->idCpu);
2471
2472 *pfPSE = true;
2473 *pfPGE = false;
2474 switch (PGMGetShadowMode(pVCpu))
2475 {
2476 default:
2477 case PGMMODE_32_BIT:
2478 *pfPAE = *pfLME = *pfNXE = false;
2479 break;
2480 case PGMMODE_PAE:
2481 *pfLME = *pfNXE = false;
2482 *pfPAE = true;
2483 break;
2484 case PGMMODE_PAE_NX:
2485 *pfLME = false;
2486 *pfPAE = *pfNXE = true;
2487 break;
2488 case PGMMODE_AMD64:
2489 *pfNXE = false;
2490 *pfPAE = *pfLME = true;
2491 break;
2492 case PGMMODE_AMD64_NX:
2493 *pfPAE = *pfLME = *pfNXE = true;
2494 break;
2495 }
2496 return PGMGetHyperCR3(pVCpu);
2497}
2498
2499
2500/**
2501 * @callback_method_impl{FNDBGCCMD,
2502 * The 'dpd'\, 'dpda'\, 'dpdb'\, 'dpdg' and 'dpdh' commands.}
2503 */
2504static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2505{
2506 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2507
2508 /*
2509 * Validate input.
2510 */
2511 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
2512 if (cArgs == 1 && pCmd->pszCmd[3] == 'a')
2513 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2514 if (cArgs == 1 && pCmd->pszCmd[3] != 'a')
2515 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2516 || DBGCVAR_ISPOINTER(paArgs[0].enmType));
2517 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2518
2519 /*
2520 * Guest or shadow page directories? Get the paging parameters.
2521 */
2522 bool fGuest = pCmd->pszCmd[3] != 'h';
2523 if (!pCmd->pszCmd[3] || pCmd->pszCmd[3] == 'a')
2524 fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2525 ? pDbgc->fRegCtxGuest
2526 : DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2527
2528 bool fPAE, fLME, fPSE, fPGE, fNXE;
2529 uint64_t cr3 = fGuest
2530 ? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2531 : dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2532 const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2533
2534 /*
2535 * Setup default argument if none was specified.
2536 * Fix address / index confusion.
2537 */
2538 DBGCVAR VarDefault;
2539 if (!cArgs)
2540 {
2541 if (pCmd->pszCmd[3] == 'a')
2542 {
2543 if (fLME || fPAE)
2544 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");
2545 if (fGuest)
2546 DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2547 else
2548 DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2549 }
2550 else
2551 DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2552 paArgs = &VarDefault;
2553 cArgs = 1;
2554 }
2555 else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2556 {
2557 /* If it's a number (not an address), it's an index, so convert it to an address. */
2558 Assert(pCmd->pszCmd[3] != 'a');
2559 VarDefault = paArgs[0];
2560 if (fPAE)
2561 return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2562 if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2563 return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2564 VarDefault.u.u64Number <<= X86_PD_SHIFT;
2565 VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2566 paArgs = &VarDefault;
2567 }
2568
2569 /*
2570 * Locate the PDE to start displaying at.
2571 *
2572 * The 'dpda' command takes the address of a PDE, while the others are guest
2573 * virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2574 * while the others require us to do all the tedious walking thru the paging
2575 * hierarchy to find the intended PDE.
2576 */
2577 unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2578 DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2579 DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2580 unsigned cEntries; /* The number of entries to display. */
2581 unsigned cEntriesMax; /* The max number of entries to display. */
2582 int rc;
2583 if (pCmd->pszCmd[3] == 'a')
2584 {
2585 VarPDEAddr = paArgs[0];
2586 switch (VarPDEAddr.enmRangeType)
2587 {
2588 case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2589 case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2590 default: cEntries = 10; break;
2591 }
2592 cEntriesMax = PAGE_SIZE / cbEntry;
2593 }
2594 else
2595 {
2596 /*
2597 * Determine the range.
2598 */
2599 switch (paArgs[0].enmRangeType)
2600 {
2601 case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2602 case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2603 default: cEntries = 10; break;
2604 }
2605
2606 /*
2607 * Normalize the input address, it must be a flat GC address.
2608 */
2609 rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2610 if (RT_FAILURE(rc))
2611 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2612 if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2613 {
2614 VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2615 VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2616 }
2617 if (fPAE)
2618 VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2619 else
2620 VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2621
2622 /*
2623 * Do the paging walk until we get to the page directory.
2624 */
2625 DBGCVAR VarCur;
2626 if (fGuest)
2627 DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2628 else
2629 DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2630 if (fLME)
2631 {
2632 /* Page Map Level 4 Lookup. */
2633 /* Check if it's a valid address first? */
2634 VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2635 VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2636 X86PML4E Pml4e;
2637 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2638 if (RT_FAILURE(rc))
2639 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2640 if (!Pml4e.n.u1Present)
2641 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2642
2643 VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2644 Assert(fPAE);
2645 }
2646 if (fPAE)
2647 {
2648 /* Page directory pointer table. */
2649 X86PDPE Pdpe;
2650 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2651 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2652 if (RT_FAILURE(rc))
2653 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2654 if (!Pdpe.n.u1Present)
2655 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2656
2657 iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2658 VarPDEAddr = VarCur;
2659 VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2660 VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2661 }
2662 else
2663 {
2664 /* 32-bit legacy - CR3 == page directory. */
2665 iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2666 VarPDEAddr = VarCur;
2667 VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2668 }
2669 cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2670 }
2671
2672 /* adjust cEntries */
2673 cEntries = RT_MAX(1, cEntries);
2674 cEntries = RT_MIN(cEntries, cEntriesMax);
2675
2676 /*
2677 * The display loop.
2678 */
2679 DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2680 &VarPDEAddr, iEntry);
2681 do
2682 {
2683 /*
2684 * Read.
2685 */
2686 X86PDEPAE Pde;
2687 Pde.u = 0;
2688 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, cbEntry, &VarPDEAddr, NULL);
2689 if (RT_FAILURE(rc))
2690 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2691
2692 /*
2693 * Display.
2694 */
2695 if (iEntry != ~0U)
2696 {
2697 DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2698 iEntry++;
2699 }
2700 if (fPSE && Pde.b.u1Size)
2701 DBGCCmdHlpPrintf(pCmdHlp,
2702 fPAE
2703 ? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2704 : "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2705 Pde.u,
2706 Pde.u & X86_PDE_PAE_PG_MASK,
2707 Pde.b.u1Present ? "p " : "np",
2708 Pde.b.u1Write ? "w" : "r",
2709 Pde.b.u1User ? "u" : "s",
2710 Pde.b.u1Accessed ? "a " : "na",
2711 Pde.b.u1Dirty ? "d " : "nd",
2712 Pde.b.u3Available,
2713 Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2714 Pde.b.u1WriteThru ? "pwt" : " ",
2715 Pde.b.u1CacheDisable ? "pcd" : " ",
2716 Pde.b.u1PAT ? "pat" : "",
2717 Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2718 else
2719 DBGCCmdHlpPrintf(pCmdHlp,
2720 fPAE
2721 ? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2722 : "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2723 Pde.u,
2724 Pde.u & X86_PDE_PAE_PG_MASK,
2725 Pde.n.u1Present ? "p " : "np",
2726 Pde.n.u1Write ? "w" : "r",
2727 Pde.n.u1User ? "u" : "s",
2728 Pde.n.u1Accessed ? "a " : "na",
2729 Pde.u & RT_BIT(6) ? "6 " : " ",
2730 Pde.n.u3Available,
2731 Pde.u & RT_BIT(8) ? "8" : " ",
2732 Pde.n.u1WriteThru ? "pwt" : " ",
2733 Pde.n.u1CacheDisable ? "pcd" : " ",
2734 Pde.u & RT_BIT(7) ? "7" : "",
2735 Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2736 if (Pde.u & UINT64_C(0x7fff000000000000))
2737 DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2738 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2739 if (RT_FAILURE(rc))
2740 return rc;
2741
2742 /*
2743 * Advance.
2744 */
2745 VarPDEAddr.u.u64Number += cbEntry;
2746 if (iEntry != ~0U)
2747 VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2748 } while (cEntries-- > 0);
2749
2750 return VINF_SUCCESS;
2751}
2752
2753
2754/**
2755 * @callback_method_impl{FNDBGCCMD, The 'dpdb' command.}
2756 */
2757static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2758{
2759 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2760 int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2761 int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2762 if (RT_FAILURE(rc1))
2763 return rc1;
2764 NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
2765 return rc2;
2766}
2767
2768
2769/**
2770 * @callback_method_impl{FNDBGCCMD, The 'dph*' commands and main part of 'm'.}
2771 */
2772static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2773{
2774 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2775 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2776
2777 /*
2778 * Figure the context and base flags.
2779 */
2780 uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO | DBGFPGDMP_FLAGS_PRINT_CR3;
2781 if (pCmd->pszCmd[0] == 'm')
2782 fFlags |= DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW;
2783 else if (pCmd->pszCmd[3] == '\0')
2784 fFlags |= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2785 else if (pCmd->pszCmd[3] == 'g')
2786 fFlags |= DBGFPGDMP_FLAGS_GUEST;
2787 else if (pCmd->pszCmd[3] == 'h')
2788 fFlags |= DBGFPGDMP_FLAGS_SHADOW;
2789 else
2790 AssertFailed();
2791
2792 if (pDbgc->cPagingHierarchyDumps == 0)
2793 fFlags |= DBGFPGDMP_FLAGS_HEADER;
2794 pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2795
2796 /*
2797 * Get the range.
2798 */
2799 PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2800 RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2801 int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2802 if (RT_FAILURE(rc))
2803 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2804
2805 uint64_t cbRange;
2806 rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2807 if (RT_FAILURE(rc))
2808 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2809
2810 RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2811 if (cbRange >= GCPtrLast)
2812 GCPtrLast = RTGCPTR_MAX;
2813 else if (!cbRange)
2814 GCPtrLast = GCPtrFirst;
2815 else
2816 GCPtrLast = GCPtrFirst + cbRange - 1;
2817
2818 /*
2819 * Do we have a CR3?
2820 */
2821 uint64_t cr3 = 0;
2822 if (cArgs > 1)
2823 {
2824 if ((fFlags & (DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST | DBGFPGDMP_FLAGS_SHADOW))
2825 return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2826 if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2827 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2828 cr3 = paArgs[1].u.u64Number;
2829 }
2830 else
2831 fFlags |= DBGFPGDMP_FLAGS_CURRENT_CR3;
2832
2833 /*
2834 * Do we have a mode?
2835 */
2836 if (cArgs > 2)
2837 {
2838 if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2839 return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2840 static const struct MODETOFLAGS
2841 {
2842 const char *pszName;
2843 uint32_t fFlags;
2844 } s_aModeToFlags[] =
2845 {
2846 { "ept", DBGFPGDMP_FLAGS_EPT },
2847 { "legacy", 0 },
2848 { "legacy-np", DBGFPGDMP_FLAGS_NP },
2849 { "pse", DBGFPGDMP_FLAGS_PSE },
2850 { "pse-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_NP },
2851 { "pae", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE },
2852 { "pae-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NP },
2853 { "pae-nx", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NXE },
2854 { "pae-nx-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_NXE | DBGFPGDMP_FLAGS_NP },
2855 { "long", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME },
2856 { "long-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NP },
2857 { "long-nx", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NXE },
2858 { "long-nx-np", DBGFPGDMP_FLAGS_PSE | DBGFPGDMP_FLAGS_PAE | DBGFPGDMP_FLAGS_LME | DBGFPGDMP_FLAGS_NXE | DBGFPGDMP_FLAGS_NP }
2859 };
2860 int i = RT_ELEMENTS(s_aModeToFlags);
2861 while (i-- > 0)
2862 if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2863 {
2864 fFlags |= s_aModeToFlags[i].fFlags;
2865 break;
2866 }
2867 if (i < 0)
2868 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2869 }
2870 else
2871 fFlags |= DBGFPGDMP_FLAGS_CURRENT_MODE;
2872
2873 /*
2874 * Call the worker.
2875 */
2876 rc = DBGFR3PagingDumpEx(pUVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /*cMaxDepth*/,
2877 DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2878 if (RT_FAILURE(rc))
2879 return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2880 return VINF_SUCCESS;
2881}
2882
2883
2884
2885/**
2886 * @callback_method_impl{FNDBGCCMD, The 'dpg*' commands.}
2887 */
2888static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
2889{
2890 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2891
2892 /*
2893 * Validate input.
2894 */
2895 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs == 1);
2896 if (pCmd->pszCmd[3] == 'a')
2897 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
2898 else
2899 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2900 || DBGCVAR_ISPOINTER(paArgs[0].enmType));
2901 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
2902
2903 /*
2904 * Guest or shadow page tables? Get the paging parameters.
2905 */
2906 bool fGuest = pCmd->pszCmd[3] != 'h';
2907 if (!pCmd->pszCmd[3] || pCmd->pszCmd[3] == 'a')
2908 fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2909 ? pDbgc->fRegCtxGuest
2910 : DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2911
2912 bool fPAE, fLME, fPSE, fPGE, fNXE;
2913 uint64_t cr3 = fGuest
2914 ? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2915 : dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2916 const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2917
2918 /*
2919 * Locate the PTE to start displaying at.
2920 *
2921 * The 'dpta' command takes the address of a PTE, while the others are guest
2922 * virtual address which PTEs should be displayed. So, 'pdta' is rather simple
2923 * while the others require us to do all the tedious walking thru the paging
2924 * hierarchy to find the intended PTE.
2925 */
2926 unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
2927 DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
2928 DBGCVAR VarPTEAddr; /* The address of the current PTE. */
2929 unsigned cEntries; /* The number of entries to display. */
2930 unsigned cEntriesMax; /* The max number of entries to display. */
2931 int rc;
2932 if (pCmd->pszCmd[3] == 'a')
2933 {
2934 VarPTEAddr = paArgs[0];
2935 switch (VarPTEAddr.enmRangeType)
2936 {
2937 case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
2938 case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
2939 default: cEntries = 10; break;
2940 }
2941 cEntriesMax = PAGE_SIZE / cbEntry;
2942 }
2943 else
2944 {
2945 /*
2946 * Determine the range.
2947 */
2948 switch (paArgs[0].enmRangeType)
2949 {
2950 case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2951 case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2952 default: cEntries = 10; break;
2953 }
2954
2955 /*
2956 * Normalize the input address, it must be a flat GC address.
2957 */
2958 rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2959 if (RT_FAILURE(rc))
2960 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2961 if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2962 {
2963 VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2964 VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2965 }
2966 VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
2967
2968 /*
2969 * Do the paging walk until we get to the page table.
2970 */
2971 DBGCVAR VarCur;
2972 if (fGuest)
2973 DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2974 else
2975 DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2976 if (fLME)
2977 {
2978 /* Page Map Level 4 Lookup. */
2979 /* Check if it's a valid address first? */
2980 VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2981 VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2982 X86PML4E Pml4e;
2983 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2984 if (RT_FAILURE(rc))
2985 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2986 if (!Pml4e.n.u1Present)
2987 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2988
2989 VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2990 Assert(fPAE);
2991 }
2992 if (fPAE)
2993 {
2994 /* Page directory pointer table. */
2995 X86PDPE Pdpe;
2996 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2997 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2998 if (RT_FAILURE(rc))
2999 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
3000 if (!Pdpe.n.u1Present)
3001 return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
3002
3003 VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
3004
3005 /* Page directory (PAE). */
3006 X86PDEPAE Pde;
3007 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
3008 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
3009 if (RT_FAILURE(rc))
3010 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3011 if (!Pde.n.u1Present)
3012 return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3013 if (fPSE && Pde.n.u1Size)
3014 return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3015
3016 iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
3017 VarPTEAddr = VarCur;
3018 VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
3019 VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
3020 }
3021 else
3022 {
3023 /* Page directory (legacy). */
3024 X86PDE Pde;
3025 VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
3026 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pde, sizeof(Pde), &VarCur, NULL);
3027 if (RT_FAILURE(rc))
3028 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3029 if (!Pde.n.u1Present)
3030 return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3031 if (fPSE && Pde.n.u1Size)
3032 return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3033
3034 iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
3035 VarPTEAddr = VarCur;
3036 VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
3037 VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
3038 }
3039 cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
3040 }
3041
3042 /* adjust cEntries */
3043 cEntries = RT_MAX(1, cEntries);
3044 cEntries = RT_MIN(cEntries, cEntriesMax);
3045
3046 /*
3047 * The display loop.
3048 */
3049 DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3050 &VarPTEAddr, &VarGCPtr, iEntry);
3051 do
3052 {
3053 /*
3054 * Read.
3055 */
3056 X86PTEPAE Pte;
3057 Pte.u = 0;
3058 rc = pCmdHlp->pfnMemRead(pCmdHlp, &Pte, cbEntry, &VarPTEAddr, NULL);
3059 if (RT_FAILURE(rc))
3060 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3061
3062 /*
3063 * Display.
3064 */
3065 if (iEntry != ~0U)
3066 {
3067 DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3068 iEntry++;
3069 }
3070 DBGCCmdHlpPrintf(pCmdHlp,
3071 fPAE
3072 ? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3073 : "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3074 Pte.u,
3075 Pte.u & X86_PTE_PAE_PG_MASK,
3076 Pte.n.u1Present ? "p " : "np",
3077 Pte.n.u1Write ? "w" : "r",
3078 Pte.n.u1User ? "u" : "s",
3079 Pte.n.u1Accessed ? "a " : "na",
3080 Pte.n.u1Dirty ? "d " : "nd",
3081 Pte.n.u3Available,
3082 Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3083 Pte.n.u1WriteThru ? "pwt" : " ",
3084 Pte.n.u1CacheDisable ? "pcd" : " ",
3085 Pte.n.u1PAT ? "pat" : " ",
3086 Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3087 );
3088 if (Pte.u & UINT64_C(0x7fff000000000000))
3089 DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3090 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3091 if (RT_FAILURE(rc))
3092 return rc;
3093
3094 /*
3095 * Advance.
3096 */
3097 VarPTEAddr.u.u64Number += cbEntry;
3098 if (iEntry != ~0U)
3099 VarGCPtr.u.GCFlat += PAGE_SIZE;
3100 } while (cEntries-- > 0);
3101
3102 return VINF_SUCCESS;
3103}
3104
3105
3106/**
3107 * @callback_method_impl{FNDBGCCMD, The 'dptb' command.}
3108 */
3109static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3110{
3111 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3112 int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3113 int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3114 if (RT_FAILURE(rc1))
3115 return rc1;
3116 NOREF(pCmd); NOREF(cArgs);
3117 return rc2;
3118}
3119
3120
3121/**
3122 * @callback_method_impl{FNDBGCCMD, The 'dt' command.}
3123 */
3124static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3125{
3126 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3127 int rc;
3128
3129 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3130 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs <= 1);
3131 if (cArgs == 1)
3132 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[0].enmType != DBGCVAR_TYPE_STRING
3133 && paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL);
3134
3135 /*
3136 * Check if the command indicates the type.
3137 */
3138 enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3139 if (!strcmp(pCmd->pszCmd, "dt16"))
3140 enmTssType = kTss16;
3141 else if (!strcmp(pCmd->pszCmd, "dt32"))
3142 enmTssType = kTss32;
3143 else if (!strcmp(pCmd->pszCmd, "dt64"))
3144 enmTssType = kTss64;
3145
3146 /*
3147 * We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3148 */
3149 uint32_t SelTss = UINT32_MAX;
3150 DBGCVAR VarTssAddr;
3151 if (cArgs == 0)
3152 {
3153 /** @todo consider querying the hidden bits instead (missing API). */
3154 uint16_t SelTR;
3155 rc = DBGFR3RegCpuQueryU16(pUVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3156 if (RT_FAILURE(rc))
3157 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3158 DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3159 SelTss = SelTR;
3160 }
3161 else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3162 {
3163 if (paArgs[0].u.u64Number < 0xffff)
3164 DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3165 else
3166 {
3167 if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3168 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3169 DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3170 if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3171 {
3172 VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3173 VarTssAddr.u64Range = paArgs[0].u64Range;
3174 }
3175 }
3176 }
3177 else
3178 VarTssAddr = paArgs[0];
3179
3180 /*
3181 * Deal with TSS:ign by means of the GDT.
3182 */
3183 if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3184 {
3185 SelTss = VarTssAddr.u.GCFar.sel;
3186 DBGFSELINFO SelInfo;
3187 rc = DBGFR3SelQueryInfo(pUVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3188 if (RT_FAILURE(rc))
3189 return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3190 pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3191
3192 if (SelInfo.u.Raw.Gen.u1DescType)
3193 return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3194
3195 switch (SelInfo.u.Raw.Gen.u4Type)
3196 {
3197 case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3198 case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3199 if (enmTssType == kTssToBeDetermined)
3200 enmTssType = kTss16;
3201 break;
3202
3203 case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3204 case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3205 if (enmTssType == kTssToBeDetermined)
3206 enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3207 break;
3208
3209 default:
3210 return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3211 VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3212 }
3213
3214 DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3215 DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3216 }
3217
3218 /*
3219 * Determine the TSS type if none is currently given.
3220 */
3221 if (enmTssType == kTssToBeDetermined)
3222 {
3223 if ( VarTssAddr.u64Range > 0
3224 && VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3225 enmTssType = kTss16;
3226 else
3227 {
3228 uint64_t uEfer;
3229 rc = DBGFR3RegCpuQueryU64(pUVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3230 if ( RT_FAILURE(rc)
3231 || !(uEfer & MSR_K6_EFER_LMA) )
3232 enmTssType = kTss32;
3233 else
3234 enmTssType = kTss64;
3235 }
3236 }
3237
3238 /*
3239 * Figure the min/max sizes.
3240 * ASSUMES max TSS size is 64 KB.
3241 */
3242 uint32_t cbTssMin;
3243 uint32_t cbTssMax;
3244 switch (enmTssType)
3245 {
3246 case kTss16:
3247 cbTssMin = cbTssMax = sizeof(X86TSS16);
3248 break;
3249 case kTss32:
3250 cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3251 cbTssMax = _64K;
3252 break;
3253 case kTss64:
3254 cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3255 cbTssMax = _64K;
3256 break;
3257 default:
3258 AssertFailedReturn(VERR_INTERNAL_ERROR);
3259 }
3260 uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3261 if (cbTss == 0)
3262 cbTss = cbTssMin;
3263 else if (cbTss < cbTssMin)
3264 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3265 cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3266 else if (cbTss > cbTssMax)
3267 cbTss = cbTssMax;
3268 DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3269
3270 /*
3271 * Read the TSS into a temporary buffer.
3272 */
3273 uint8_t abBuf[_64K];
3274 size_t cbTssRead;
3275 rc = DBGCCmdHlpMemRead(pCmdHlp, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3276 if (RT_FAILURE(rc))
3277 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3278 if (cbTssRead < cbTssMin)
3279 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3280 cbTssRead, cbTssMin);
3281 if (cbTssRead < cbTss)
3282 memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3283
3284
3285 /*
3286 * Format the TSS.
3287 */
3288 uint16_t offIoBitmap;
3289 switch (enmTssType)
3290 {
3291 case kTss16:
3292 {
3293 PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3294 if (SelTss != UINT32_MAX)
3295 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3296 else
3297 DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3298 DBGCCmdHlpPrintf(pCmdHlp,
3299 "ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3300 "ip=%04x sp=%04x bp=%04x\n"
3301 "cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3302 "ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3303 "prev=%04x ldtr=%04x\n"
3304 ,
3305 pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3306 pTss->ip, pTss->sp, pTss->bp,
3307 pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3308 pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3309 pTss->selPrev, pTss->selLdt);
3310 if (pTss->cs != 0)
3311 pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3312 offIoBitmap = 0;
3313 break;
3314 }
3315
3316 case kTss32:
3317 {
3318 PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3319 if (SelTss != UINT32_MAX)
3320 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3321 else
3322 DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3323 DBGCCmdHlpPrintf(pCmdHlp,
3324 "eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3325 "eip=%08x esp=%08x ebp=%08x\n"
3326 "cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3327 "ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3328 "prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3329 ,
3330 pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3331 pTss->eip, pTss->esp, pTss->ebp,
3332 pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3333 pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3334 pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3335 if (pTss->cs != 0)
3336 pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3337 offIoBitmap = pTss->offIoBitmap;
3338 break;
3339 }
3340
3341 case kTss64:
3342 {
3343 PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3344 if (SelTss != UINT32_MAX)
3345 DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3346 else
3347 DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3348 DBGCCmdHlpPrintf(pCmdHlp,
3349 "rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3350 "ist1=%016RX16 ist2=%016RX16\n"
3351 "ist3=%016RX16 ist4=%016RX16\n"
3352 "ist5=%016RX16 ist6=%016RX16\n"
3353 "ist7=%016RX16 iomap=%04x\n"
3354 ,
3355 pTss->rsp0, pTss->rsp1, pTss->rsp2,
3356 pTss->ist1, pTss->ist2,
3357 pTss->ist3, pTss->ist4,
3358 pTss->ist5, pTss->ist6,
3359 pTss->ist7, pTss->offIoBitmap);
3360 offIoBitmap = pTss->offIoBitmap;
3361 break;
3362 }
3363
3364 default:
3365 AssertFailedReturn(VERR_INTERNAL_ERROR);
3366 }
3367
3368 /*
3369 * Dump the interrupt redirection bitmap.
3370 */
3371 if (enmTssType != kTss16)
3372 {
3373 if ( offIoBitmap > cbTssMin
3374 && offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3375 {
3376 if (offIoBitmap - cbTssMin >= 32)
3377 {
3378 DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3379 uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3380 uint32_t iStart = 0;
3381 bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3382 for (uint32_t i = 0; i < 256; i++)
3383 {
3384 bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3385 if (fThis != fPrev)
3386 {
3387 DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3388 fPrev = fThis;
3389 iStart = i;
3390 }
3391 }
3392 if (iStart != 255)
3393 DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3394 }
3395 else
3396 DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3397 offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3398 }
3399 else if (offIoBitmap > 0)
3400 DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3401 else
3402 DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3403 }
3404
3405 /*
3406 * Dump the I/O permission bitmap if present. The IOPM cannot start below offset 0x64
3407 * (that applies to both 32-bit and 64-bit TSSs since their size is the same).
3408 */
3409 if (enmTssType != kTss16)
3410 {
3411 if (offIoBitmap < cbTss && offIoBitmap >= 0x64)
3412 {
3413 uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3414 DBGCVAR VarAddr;
3415 DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3416 DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3417
3418 uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3419 uint32_t iStart = 0;
3420 bool fPrev = ASMBitTest(pbIoBitmap, 0);
3421 uint32_t cLine = 0;
3422 for (uint32_t i = 1; i < cPorts; i++)
3423 {
3424 bool fThis = ASMBitTest(pbIoBitmap, i);
3425 if (fThis != fPrev)
3426 {
3427 cLine++;
3428 DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3429 fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3430 fPrev = fThis;
3431 iStart = i;
3432 }
3433 }
3434 if (iStart != _64K-1)
3435 DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3436 }
3437 else if (offIoBitmap > 0)
3438 DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3439 else
3440 DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3441 }
3442
3443 return VINF_SUCCESS;
3444}
3445
3446
3447/**
3448 * @callback_method_impl{FNDBGCCMD, The 'm' command.}
3449 */
3450static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3451{
3452 DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3453 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3454 return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pUVM, paArgs, cArgs);
3455}
3456
3457
3458/**
3459 * Converts one or more variables into a byte buffer for a
3460 * given unit size.
3461 *
3462 * @returns VBox status codes:
3463 * @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3464 * @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3465 * @retval VINF_SUCCESS on success.
3466 *
3467 * @param pvBuf The buffer to convert into.
3468 * @param pcbBuf The buffer size on input. The size of the result on output.
3469 * @param cbUnit The unit size to apply when converting.
3470 * The high bit is used to indicate unicode string.
3471 * @param paVars The array of variables to convert.
3472 * @param cVars The number of variables.
3473 */
3474int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void *pvBuf, uint32_t *pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3475{
3476 union
3477 {
3478 uint8_t *pu8;
3479 uint16_t *pu16;
3480 uint32_t *pu32;
3481 uint64_t *pu64;
3482 } u, uEnd;
3483 u.pu8 = (uint8_t *)pvBuf;
3484 uEnd.pu8 = u.pu8 + *pcbBuf;
3485
3486 unsigned i;
3487 for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3488 {
3489 switch (paVars[i].enmType)
3490 {
3491 case DBGCVAR_TYPE_GC_FAR:
3492 case DBGCVAR_TYPE_GC_FLAT:
3493 case DBGCVAR_TYPE_GC_PHYS:
3494 case DBGCVAR_TYPE_HC_FLAT:
3495 case DBGCVAR_TYPE_HC_PHYS:
3496 case DBGCVAR_TYPE_NUMBER:
3497 {
3498 uint64_t u64 = paVars[i].u.u64Number;
3499 switch (cbUnit & 0x1f)
3500 {
3501 case 1:
3502 do
3503 {
3504 *u.pu8++ = u64;
3505 u64 >>= 8;
3506 } while (u64);
3507 break;
3508 case 2:
3509 do
3510 {
3511 *u.pu16++ = u64;
3512 u64 >>= 16;
3513 } while (u64);
3514 break;
3515 case 4:
3516 *u.pu32++ = u64;
3517 u64 >>= 32;
3518 if (u64)
3519 *u.pu32++ = u64;
3520 break;
3521 case 8:
3522 *u.pu64++ = u64;
3523 break;
3524 }
3525 break;
3526 }
3527
3528 case DBGCVAR_TYPE_STRING:
3529 case DBGCVAR_TYPE_SYMBOL:
3530 {
3531 const char *psz = paVars[i].u.pszString;
3532 size_t cbString = strlen(psz);
3533 if (cbUnit & RT_BIT_32(31))
3534 {
3535 /* Explode char to unit. */
3536 if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3537 {
3538 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3539 return VERR_TOO_MUCH_DATA;
3540 }
3541 while (*psz)
3542 {
3543 switch (cbUnit & 0x1f)
3544 {
3545 case 1: *u.pu8++ = *psz; break;
3546 case 2: *u.pu16++ = *psz; break;
3547 case 4: *u.pu32++ = *psz; break;
3548 case 8: *u.pu64++ = *psz; break;
3549 }
3550 psz++;
3551 }
3552 }
3553 else
3554 {
3555 /* Raw copy with zero padding if the size isn't aligned. */
3556 if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3557 {
3558 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3559 return VERR_TOO_MUCH_DATA;
3560 }
3561
3562 size_t cbCopy = cbString & ~(cbUnit - 1);
3563 memcpy(u.pu8, psz, cbCopy);
3564 u.pu8 += cbCopy;
3565 psz += cbCopy;
3566
3567 size_t cbReminder = cbString & (cbUnit - 1);
3568 if (cbReminder)
3569 {
3570 memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3571 memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3572 u.pu8 += cbUnit;
3573 }
3574 }
3575 break;
3576 }
3577
3578 default:
3579 *pcbBuf = u.pu8 - (uint8_t *)pvBuf;
3580 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3581 "i=%d enmType=%d\n", i, paVars[i].enmType);
3582 return VERR_INTERNAL_ERROR;
3583 }
3584 }
3585 *pcbBuf = u.pu8 - (uint8_t *)pvBuf;
3586 if (i != cVars)
3587 {
3588 pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3589 return VERR_TOO_MUCH_DATA;
3590 }
3591 return VINF_SUCCESS;
3592}
3593
3594
3595/**
3596 * @callback_method_impl{FNDBGCCMD, The 'eb'\, 'ew'\, 'ed' and 'eq' commands.}
3597 */
3598static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3599{
3600 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3601 unsigned iArg;
3602
3603 /*
3604 * Validate input.
3605 */
3606 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2);
3607 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, DBGCVAR_ISPOINTER(paArgs[0].enmType));
3608 for (iArg = 1; iArg < cArgs; iArg++)
3609 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER);
3610 DBGC_CMDHLP_REQ_UVM_RET(pCmdHlp, pCmd, pUVM);
3611
3612 /*
3613 * Figure out the element size.
3614 */
3615 unsigned cbElement;
3616 switch (pCmd->pszCmd[1])
3617 {
3618 default:
3619 case 'b': cbElement = 1; break;
3620 case 'w': cbElement = 2; break;
3621 case 'd': cbElement = 4; break;
3622 case 'q': cbElement = 8; break;
3623 }
3624
3625 /*
3626 * Do setting.
3627 */
3628 DBGCVAR Addr = paArgs[0];
3629 for (iArg = 1;;)
3630 {
3631 size_t cbWritten;
3632 int rc = pCmdHlp->pfnMemWrite(pCmdHlp, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3633 if (RT_FAILURE(rc))
3634 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3635 if (cbWritten != cbElement)
3636 return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3637
3638 /* advance. */
3639 iArg++;
3640 if (iArg >= cArgs)
3641 break;
3642 rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3643 if (RT_FAILURE(rc))
3644 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3645 }
3646
3647 return VINF_SUCCESS;
3648}
3649
3650
3651/**
3652 * Executes the search.
3653 *
3654 * @returns VBox status code.
3655 * @param pCmdHlp The command helpers.
3656 * @param pUVM The user mode VM handle.
3657 * @param pAddress The address to start searching from. (undefined on output)
3658 * @param cbRange The address range to search. Must not wrap.
3659 * @param pabBytes The byte pattern to search for.
3660 * @param cbBytes The size of the pattern.
3661 * @param cbUnit The search unit.
3662 * @param cMaxHits The max number of hits.
3663 * @param pResult Where to store the result if it's a function invocation.
3664 */
3665static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3666 const uint8_t *pabBytes, uint32_t cbBytes,
3667 uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3668{
3669 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3670
3671 /*
3672 * Do the search.
3673 */
3674 uint64_t cHits = 0;
3675 for (;;)
3676 {
3677 /* search */
3678 DBGFADDRESS HitAddress;
3679 int rc = DBGFR3MemScan(pUVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3680 if (RT_FAILURE(rc))
3681 {
3682 if (rc != VERR_DBGF_MEM_NOT_FOUND)
3683 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3684
3685 /* update the current address so we can save it (later). */
3686 pAddress->off += cbRange;
3687 pAddress->FlatPtr += cbRange;
3688 cbRange = 0;
3689 break;
3690 }
3691
3692 /* report result */
3693 DBGCVAR VarCur;
3694 rc = DBGCCmdHlpVarFromDbgfAddr(pCmdHlp, &HitAddress, &VarCur);
3695 if (RT_FAILURE(rc))
3696 return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGCCmdHlpVarFromDbgfAddr\n");
3697 if (!pResult)
3698 pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3699 else
3700 DBGCVAR_ASSIGN(pResult, &VarCur);
3701
3702 /* advance */
3703 cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3704 *pAddress = HitAddress;
3705 pAddress->FlatPtr += cbBytes;
3706 pAddress->off += cbBytes;
3707 if (cbRange <= cbBytes)
3708 {
3709 cbRange = 0;
3710 break;
3711 }
3712 cbRange -= cbBytes;
3713
3714 if (++cHits >= cMaxHits)
3715 {
3716 /// @todo save the search.
3717 break;
3718 }
3719 }
3720
3721 /*
3722 * Save the search so we can resume it...
3723 */
3724 if (pDbgc->abSearch != pabBytes)
3725 {
3726 memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3727 pDbgc->cbSearch = cbBytes;
3728 pDbgc->cbSearchUnit = cbUnit;
3729 }
3730 pDbgc->cMaxSearchHits = cMaxHits;
3731 pDbgc->SearchAddr = *pAddress;
3732 pDbgc->cbSearchRange = cbRange;
3733
3734 return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3735}
3736
3737
3738/**
3739 * Resumes the previous search.
3740 *
3741 * @returns VBox status code.
3742 * @param pCmdHlp Pointer to the command helper functions.
3743 * @param pUVM The user mode VM handle.
3744 * @param pResult Where to store the result of a function invocation.
3745 */
3746static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PDBGCVAR pResult)
3747{
3748 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3749
3750 /*
3751 * Make sure there is a previous command.
3752 */
3753 if (!pDbgc->cbSearch)
3754 {
3755 DBGCCmdHlpPrintf(pCmdHlp, "Error: No previous search\n");
3756 return VERR_DBGC_COMMAND_FAILED;
3757 }
3758
3759 /*
3760 * Make range and address adjustments.
3761 */
3762 DBGFADDRESS Address = pDbgc->SearchAddr;
3763 if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3764 {
3765 Address.FlatPtr -= Address.off;
3766 Address.off = 0;
3767 }
3768
3769 RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3770 if (!cbRange)
3771 cbRange = ~(RTGCUINTPTR)0;
3772 if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3773 cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3774
3775 return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3776 pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3777}
3778
3779
3780/**
3781 * Search memory, worker for the 's' and 's?' functions.
3782 *
3783 * @returns VBox status code.
3784 * @param pCmdHlp Pointer to the command helper functions.
3785 * @param pUVM The user mode VM handle.
3786 * @param pAddress Where to start searching. If no range, search till end of address space.
3787 * @param cMaxHits The maximum number of hits.
3788 * @param chType The search type.
3789 * @param paPatArgs The pattern variable array.
3790 * @param cPatArgs Number of pattern variables.
3791 * @param pResult Where to store the result of a function invocation.
3792 */
3793static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3794 PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3795{
3796 if (pResult)
3797 DBGCVAR_INIT_GC_FLAT(pResult, 0);
3798
3799 /*
3800 * Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3801 */
3802 uint32_t cbUnit;
3803 switch (chType)
3804 {
3805 case 'a':
3806 case 'b': cbUnit = 1; break;
3807 case 'u': cbUnit = 2 | RT_BIT_32(31); break;
3808 case 'w': cbUnit = 2; break;
3809 case 'd': cbUnit = 4; break;
3810 case 'q': cbUnit = 8; break;
3811 default:
3812 return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3813 }
3814 uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3815 uint32_t cbBytes = sizeof(abBytes);
3816 int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3817 if (RT_FAILURE(rc))
3818 return VERR_DBGC_COMMAND_FAILED;
3819
3820 /*
3821 * Make DBGF address and fix the range.
3822 */
3823 DBGFADDRESS Address;
3824 rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3825 if (RT_FAILURE(rc))
3826 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3827
3828 RTGCUINTPTR cbRange;
3829 switch (pAddress->enmRangeType)
3830 {
3831 case DBGCVAR_RANGE_BYTES:
3832 cbRange = pAddress->u64Range;
3833 if (cbRange != pAddress->u64Range)
3834 cbRange = ~(RTGCUINTPTR)0;
3835 break;
3836
3837 case DBGCVAR_RANGE_ELEMENTS:
3838 cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3839 if ( cbRange != pAddress->u64Range * cbUnit
3840 || cbRange < pAddress->u64Range)
3841 cbRange = ~(RTGCUINTPTR)0;
3842 break;
3843
3844 default:
3845 cbRange = ~(RTGCUINTPTR)0;
3846 break;
3847 }
3848 if (Address.FlatPtr + cbRange < Address.FlatPtr)
3849 cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3850
3851 /*
3852 * Ok, do it.
3853 */
3854 return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pUVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3855}
3856
3857
3858/**
3859 * @callback_method_impl{FNDBGCCMD, The 's' command.}
3860 */
3861static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3862{
3863 /* check that the parser did what it's supposed to do. */
3864 //if ( cArgs <= 2
3865 // && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3866 // return DBGCCmdHlpPrintf(pCmdHlp, "parser error\n");
3867
3868 /*
3869 * Repeat previous search?
3870 */
3871 if (cArgs == 0)
3872 return dbgcCmdWorkerSearchMemResume(pCmdHlp, pUVM, NULL);
3873
3874 /*
3875 * Parse arguments.
3876 */
3877
3878 return -1;
3879}
3880
3881
3882/**
3883 * @callback_method_impl{FNDBGCCMD, The 's?' command.}
3884 */
3885static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3886{
3887 /* check that the parser did what it's supposed to do. */
3888 DBGC_CMDHLP_ASSERT_PARSER_RET(pCmdHlp, pCmd, 0, cArgs >= 2 && DBGCVAR_ISGCPOINTER(paArgs[0].enmType));
3889 return dbgcCmdWorkerSearchMem(pCmdHlp, pUVM, &paArgs[0], 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, NULL);
3890}
3891
3892
3893/**
3894 * List near symbol.
3895 *
3896 * @returns VBox status code.
3897 * @param pCmdHlp Pointer to command helper functions.
3898 * @param pUVM The user mode VM handle.
3899 * @param pArg Pointer to the address or symbol to lookup.
3900 */
3901static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR pArg)
3902{
3903 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3904
3905 RTDBGSYMBOL Symbol;
3906 int rc;
3907 if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
3908 {
3909 /*
3910 * Lookup the symbol address.
3911 */
3912 rc = DBGFR3AsSymbolByName(pUVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
3913 if (RT_FAILURE(rc))
3914 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
3915
3916 rc = DBGCCmdHlpPrintf(pCmdHlp, "%RTptr %s\n", Symbol.Value, Symbol.szName);
3917 }
3918 else
3919 {
3920 /*
3921 * Convert it to a flat GC address and lookup that address.
3922 */
3923 DBGCVAR AddrVar;
3924 rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
3925 if (RT_FAILURE(rc))
3926 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
3927
3928 RTINTPTR offDisp;
3929 DBGFADDRESS Addr;
3930 rc = DBGFR3AsSymbolByAddr(pUVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pDbgc->pUVM, &Addr, AddrVar.u.GCFlat),
3931 RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL, &offDisp, &Symbol, NULL);
3932 if (RT_FAILURE(rc))
3933 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
3934
3935 if (!offDisp)
3936 rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s", &AddrVar, Symbol.szName);
3937 else if (offDisp > 0)
3938 rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
3939 else
3940 rc = DBGCCmdHlpPrintf(pCmdHlp, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
3941 if (Symbol.cb > 0)
3942 rc = DBGCCmdHlpPrintf(pCmdHlp, " (LB %RGv)\n", Symbol.cb);
3943 else
3944 rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3945 }
3946
3947 return rc;
3948}
3949
3950
3951/**
3952 * @callback_method_impl{FNDBGCCMD, The 'ln' (listnear) command.}
3953 */
3954static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
3955{
3956 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3957 if (!cArgs)
3958 {
3959 /*
3960 * Current cs:eip symbol.
3961 */
3962 DBGCVAR AddrVar;
3963 const char *pszFmtExpr = pDbgc->fRegCtxGuest ? "%%(cs:eip)" : "%%(.cs:.eip)";
3964 int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, pszFmtExpr);
3965 if (RT_FAILURE(rc))
3966 return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%s\n", pszFmtExpr + 1);
3967 return dbgcDoListNear(pCmdHlp, pUVM, &AddrVar);
3968 }
3969
3970/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
3971 /*
3972 * Iterate arguments.
3973 */
3974 for (unsigned iArg = 0; iArg < cArgs; iArg++)
3975 {
3976 int rc = dbgcDoListNear(pCmdHlp, pUVM, &paArgs[iArg]);
3977 if (RT_FAILURE(rc))
3978 return rc;
3979 }
3980
3981 NOREF(pCmd);
3982 return VINF_SUCCESS;
3983}
3984
3985
3986/**
3987 * Matches the module patters against a module name.
3988 *
3989 * @returns true if matching, otherwise false.
3990 * @param pszName The module name.
3991 * @param paArgs The module pattern argument list.
3992 * @param cArgs Number of arguments.
3993 */
3994static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
3995{
3996 for (uint32_t i = 0; i < cArgs; i++)
3997 if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
3998 return true;
3999 return false;
4000}
4001
4002
4003/**
4004 * @callback_method_impl{FNDBGCCMD, The 'ln' (list near) command.}
4005 */
4006static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
4007{
4008 bool const fMappings = pCmd->pszCmd[2] == 'o';
4009 bool const fVerbose = pCmd->pszCmd[strlen(pCmd->pszCmd) - 1] == 'v';
4010 PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4011
4012 /*
4013 * Iterate the modules in the current address space and print info about
4014 * those matching the input.
4015 */
4016 RTDBGAS hAs = DBGFR3AsResolveAndRetain(pUVM, pDbgc->hDbgAs);
4017 uint32_t cMods = RTDbgAsModuleCount(hAs);
4018 for (uint32_t iMod = 0; iMod < cMods; iMod++)
4019 {
4020 RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
4021 if (hMod != NIL_RTDBGMOD)
4022 {
4023 bool const fDeferred = RTDbgModIsDeferred(hMod);
4024 bool const fExports = RTDbgModIsExports(hMod);
4025 uint32_t const cSegs = fDeferred ? 1 : RTDbgModSegmentCount(hMod);
4026 const char * const pszName = RTDbgModName(hMod);
4027 const char * const pszImgFile = RTDbgModImageFile(hMod);
4028 const char * const pszImgFileUsed = RTDbgModImageFileUsed(hMod);
4029 const char * const pszDbgFile = RTDbgModDebugFile(hMod);
4030 if ( cArgs == 0
4031 || dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
4032 {
4033 /*
4034 * Find the mapping with the lower address, preferring a full
4035 * image mapping, for the main line.
4036 */
4037 RTDBGASMAPINFO aMappings[128];
4038 uint32_t cMappings = RT_ELEMENTS(aMappings);
4039 int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /*fFlags*/);
4040 if (RT_SUCCESS(rc))
4041 {
4042 bool fFull = false;
4043 RTUINTPTR uMin = RTUINTPTR_MAX;
4044 for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4045 if ( aMappings[iMap].Address < uMin
4046 && ( !fFull
4047 || aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4048 uMin = aMappings[iMap].Address;
4049 if (!fVerbose || !pszImgFile)
4050 DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName,
4051 fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4052 else
4053 DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %-12s %s%s\n", (RTGCUINTPTR)uMin, cSegs, pszName, pszImgFile,
4054 fExports ? " (exports)" : fDeferred ? " (deferred)" : "");
4055 if (fVerbose && pszImgFileUsed)
4056 DBGCCmdHlpPrintf(pCmdHlp, " Local image: %s\n", pszImgFileUsed);
4057 if (fVerbose && pszDbgFile)
4058 DBGCCmdHlpPrintf(pCmdHlp, " Debug file: %s\n", pszDbgFile);
4059
4060 if (fMappings)
4061 {
4062 /* sort by address first - not very efficient. */
4063 for (uint32_t i = 0; i + 1 < cMappings; i++)
4064 for (uint32_t j = i + 1; j < cMappings; j++)
4065 if (aMappings[j].Address < aMappings[i].Address)
4066 {
4067 RTDBGASMAPINFO Tmp = aMappings[j];
4068 aMappings[j] = aMappings[i];
4069 aMappings[i] = Tmp;
4070 }
4071
4072 /* print */
4073 if ( cMappings == 1
4074 && aMappings[0].iSeg == NIL_RTDBGSEGIDX
4075 && !fDeferred)
4076 {
4077 for (uint32_t iSeg = 0; iSeg < cSegs; iSeg++)
4078 {
4079 RTDBGSEGMENT SegInfo;
4080 rc = RTDbgModSegmentByIndex(hMod, iSeg, &SegInfo);
4081 if (RT_SUCCESS(rc))
4082 {
4083 if (SegInfo.uRva != RTUINTPTR_MAX)
4084 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4085 (RTGCUINTPTR)(aMappings[0].Address + SegInfo.uRva),
4086 (RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4087 else
4088 DBGCCmdHlpPrintf(pCmdHlp, " %*s %RGv #%02x %s\n",
4089 sizeof(RTGCUINTPTR)*2, "noload",
4090 (RTGCUINTPTR)SegInfo.cb, iSeg, SegInfo.szName);
4091 }
4092 else
4093 DBGCCmdHlpPrintf(pCmdHlp, " Error query segment #%u: %Rrc\n", iSeg, rc);
4094 }
4095 }
4096 else
4097 {
4098 for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4099 if (aMappings[iMap].iSeg == NIL_RTDBGSEGIDX)
4100 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4101 (RTGCUINTPTR)aMappings[iMap].Address,
4102 (RTGCUINTPTR)RTDbgModImageSize(hMod));
4103 else if (!fDeferred)
4104 {
4105 RTDBGSEGMENT SegInfo;
4106 rc = RTDbgModSegmentByIndex(hMod, aMappings[iMap].iSeg, &SegInfo);
4107 if (RT_FAILURE(rc))
4108 {
4109 RT_ZERO(SegInfo);
4110 strcpy(SegInfo.szName, "error");
4111 }
4112 DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4113 (RTGCUINTPTR)aMappings[iMap].Address,
4114 (RTGCUINTPTR)SegInfo.cb,
4115 aMappings[iMap].iSeg, SegInfo.szName);
4116 }
4117 else
4118 DBGCCmdHlpPrintf(pCmdHlp, " %RGv #%02x\n",
4119 (RTGCUINTPTR)aMappings[iMap].Address, aMappings[iMap].iSeg);
4120 }
4121 }
4122 }
4123 else
4124 DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4125 sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4126 /** @todo missing address space API for enumerating the mappings. */
4127 }
4128 RTDbgModRelease(hMod);
4129 }
4130 }
4131 RTDbgAsRelease(hAs);
4132
4133 NOREF(pCmd);
4134 return VINF_SUCCESS;
4135}
4136
4137
4138
4139/**
4140 * @callback_method_impl{FNDBGCFUNC, Reads a unsigned 8-bit value.}
4141 */
4142static DECLCALLBACK(int) dbgcFuncReadU8(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 uint8_t b;
4150 int rc = DBGCCmdHlpMemRead(pCmdHlp, &b, sizeof(b), &paArgs[0], NULL);
4151 if (RT_FAILURE(rc))
4152 return rc;
4153 DBGCVAR_INIT_NUMBER(pResult, b);
4154
4155 NOREF(pFunc);
4156 return VINF_SUCCESS;
4157}
4158
4159
4160/**
4161 * @callback_method_impl{FNDBGCFUNC, Reads a unsigned 16-bit value.}
4162 */
4163static DECLCALLBACK(int) dbgcFuncReadU16(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 uint16_t u16;
4171 int rc = DBGCCmdHlpMemRead(pCmdHlp, &u16, sizeof(u16), &paArgs[0], NULL);
4172 if (RT_FAILURE(rc))
4173 return rc;
4174 DBGCVAR_INIT_NUMBER(pResult, u16);
4175
4176 NOREF(pFunc);
4177 return VINF_SUCCESS;
4178}
4179
4180
4181/**
4182 * @callback_method_impl{FNDBGCFUNC, Reads a unsigned 32-bit value.}
4183 */
4184static DECLCALLBACK(int) dbgcFuncReadU32(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 uint32_t u32;
4192 int rc = DBGCCmdHlpMemRead(pCmdHlp, &u32, sizeof(u32), &paArgs[0], NULL);
4193 if (RT_FAILURE(rc))
4194 return rc;
4195 DBGCVAR_INIT_NUMBER(pResult, u32);
4196
4197 NOREF(pFunc);
4198 return VINF_SUCCESS;
4199}
4200
4201
4202/**
4203 * @callback_method_impl{FNDBGCFUNC, Reads a unsigned 64-bit value.}
4204 */
4205static DECLCALLBACK(int) dbgcFuncReadU64(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4206 PDBGCVAR pResult)
4207{
4208 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4209 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4210 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4211
4212 uint64_t u64;
4213 int rc = DBGCCmdHlpMemRead(pCmdHlp, &u64, sizeof(u64), &paArgs[0], NULL);
4214 if (RT_FAILURE(rc))
4215 return rc;
4216 DBGCVAR_INIT_NUMBER(pResult, u64);
4217
4218 NOREF(pFunc);
4219 return VINF_SUCCESS;
4220}
4221
4222
4223/**
4224 * @callback_method_impl{FNDBGCFUNC, Reads a unsigned pointer-sized value.}
4225 */
4226static DECLCALLBACK(int) dbgcFuncReadPtr(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4227 PDBGCVAR pResult)
4228{
4229 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4230 AssertReturn(DBGCVAR_ISPOINTER(paArgs[0].enmType), VERR_DBGC_PARSE_BUG);
4231 AssertReturn(paArgs[0].enmRangeType == DBGCVAR_RANGE_NONE, VERR_DBGC_PARSE_BUG);
4232
4233 CPUMMODE enmMode = DBGCCmdHlpGetCpuMode(pCmdHlp);
4234 if (enmMode == CPUMMODE_LONG)
4235 return dbgcFuncReadU64(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4236 return dbgcFuncReadU32(pFunc, pCmdHlp, pUVM, paArgs, cArgs, pResult);
4237}
4238
4239
4240/**
4241 * @callback_method_impl{FNDBGCFUNC, The hi(value) function implementation.}
4242 */
4243static DECLCALLBACK(int) dbgcFuncHi(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4244 PDBGCVAR pResult)
4245{
4246 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4247
4248 uint16_t uHi;
4249 switch (paArgs[0].enmType)
4250 {
4251 case DBGCVAR_TYPE_GC_FLAT: uHi = (uint16_t)(paArgs[0].u.GCFlat >> 16); break;
4252 case DBGCVAR_TYPE_GC_FAR: uHi = (uint16_t)paArgs[0].u.GCFar.sel; break;
4253 case DBGCVAR_TYPE_GC_PHYS: uHi = (uint16_t)(paArgs[0].u.GCPhys >> 16); break;
4254 case DBGCVAR_TYPE_HC_FLAT: uHi = (uint16_t)((uintptr_t)paArgs[0].u.pvHCFlat >> 16); break;
4255 case DBGCVAR_TYPE_HC_PHYS: uHi = (uint16_t)(paArgs[0].u.HCPhys >> 16); break;
4256 case DBGCVAR_TYPE_NUMBER: uHi = (uint16_t)(paArgs[0].u.u64Number >> 16); break;
4257 default:
4258 AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4259 }
4260 DBGCVAR_INIT_NUMBER(pResult, uHi);
4261 DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4262
4263 NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4264 return VINF_SUCCESS;
4265}
4266
4267
4268/**
4269 * @callback_method_impl{FNDBGCFUNC, The low(value) function implementation.}
4270 */
4271static DECLCALLBACK(int) dbgcFuncLow(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4272 PDBGCVAR pResult)
4273{
4274 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4275
4276 uint16_t uLow;
4277 switch (paArgs[0].enmType)
4278 {
4279 case DBGCVAR_TYPE_GC_FLAT: uLow = (uint16_t)paArgs[0].u.GCFlat; break;
4280 case DBGCVAR_TYPE_GC_FAR: uLow = (uint16_t)paArgs[0].u.GCFar.off; break;
4281 case DBGCVAR_TYPE_GC_PHYS: uLow = (uint16_t)paArgs[0].u.GCPhys; break;
4282 case DBGCVAR_TYPE_HC_FLAT: uLow = (uint16_t)(uintptr_t)paArgs[0].u.pvHCFlat; break;
4283 case DBGCVAR_TYPE_HC_PHYS: uLow = (uint16_t)paArgs[0].u.HCPhys; break;
4284 case DBGCVAR_TYPE_NUMBER: uLow = (uint16_t)paArgs[0].u.u64Number; break;
4285 default:
4286 AssertFailedReturn(VERR_DBGC_PARSE_BUG);
4287 }
4288 DBGCVAR_INIT_NUMBER(pResult, uLow);
4289 DBGCVAR_SET_RANGE(pResult, paArgs[0].enmRangeType, paArgs[0].u64Range);
4290
4291 NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4292 return VINF_SUCCESS;
4293}
4294
4295
4296/**
4297 * @callback_method_impl{FNDBGCFUNC,The low(value) function implementation.}
4298 */
4299static DECLCALLBACK(int) dbgcFuncNot(PCDBGCFUNC pFunc, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, uint32_t cArgs,
4300 PDBGCVAR pResult)
4301{
4302 AssertReturn(cArgs == 1, VERR_DBGC_PARSE_BUG);
4303 NOREF(pFunc); NOREF(pCmdHlp); NOREF(pUVM);
4304 return DBGCCmdHlpEval(pCmdHlp, pResult, "!(%Dv)", &paArgs[0]);
4305}
4306
4307
4308/** Generic pointer argument wo/ range. */
4309static const DBGCVARDESC g_aArgPointerWoRange[] =
4310{
4311 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4312 { 1, 1, DBGCVAR_CAT_POINTER_NO_RANGE, 0, "value", "Address or number." },
4313};
4314
4315/** Generic pointer or number argument. */
4316static const DBGCVARDESC g_aArgPointerNumber[] =
4317{
4318 /* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
4319 { 1, 1, DBGCVAR_CAT_POINTER_NUMBER, 0, "value", "Address or number." },
4320};
4321
4322
4323
4324/** Function descriptors for the CodeView / WinDbg emulation.
4325 * The emulation isn't attempting to be identical, only somewhat similar.
4326 */
4327const DBGCFUNC g_aFuncsCodeView[] =
4328{
4329 { "by", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU8, "address", "Reads a byte at the given address." },
4330 { "dwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU32, "address", "Reads a 32-bit value at the given address." },
4331 { "hi", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncHi, "value", "Returns the high 16-bit bits of a value." },
4332 { "low", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncLow, "value", "Returns the low 16-bit bits of a value." },
4333 { "not", 1, 1, &g_aArgPointerNumber[0], RT_ELEMENTS(g_aArgPointerNumber), 0, dbgcFuncNot, "address", "Boolean NOT." },
4334 { "poi", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadPtr, "address", "Reads a pointer sized (CS) value at the given address." },
4335 { "qwo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU64, "address", "Reads a 32-bit value at the given address." },
4336 { "wo", 1, 1, &g_aArgPointerWoRange[0], RT_ELEMENTS(g_aArgPointerWoRange), 0, dbgcFuncReadU16, "address", "Reads a 16-bit value at the given address." },
4337};
4338
4339/** The number of functions in the CodeView/WinDbg emulation. */
4340const uint32_t g_cFuncsCodeView = RT_ELEMENTS(g_aFuncsCodeView);
4341
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