1 | /* $Id: DBGFAddrSpace.cpp 80333 2019-08-16 20:28:38Z vboxsync $ */
|
---|
2 | /** @file
|
---|
3 | * DBGF - Debugger Facility, Address Space Management.
|
---|
4 | */
|
---|
5 |
|
---|
6 | /*
|
---|
7 | * Copyright (C) 2008-2019 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 | /** @page pg_dbgf_addr_space DBGFAddrSpace - Address Space Management
|
---|
20 | *
|
---|
21 | * What's an address space? It's mainly a convenient way of stuffing
|
---|
22 | * module segments and ad-hoc symbols together. It will also help out
|
---|
23 | * when the debugger gets extended to deal with user processes later.
|
---|
24 | *
|
---|
25 | * There are two standard address spaces that will always be present:
|
---|
26 | * - The physical address space.
|
---|
27 | * - The global virtual address space.
|
---|
28 | *
|
---|
29 | * Additional address spaces will be added and removed at runtime for
|
---|
30 | * guest processes. The global virtual address space will be used to
|
---|
31 | * track the kernel parts of the OS, or at least the bits of the kernel
|
---|
32 | * that is part of all address spaces (mac os x and 4G/4G patched linux).
|
---|
33 | *
|
---|
34 | */
|
---|
35 |
|
---|
36 |
|
---|
37 | /*********************************************************************************************************************************
|
---|
38 | * Header Files *
|
---|
39 | *********************************************************************************************************************************/
|
---|
40 | #define LOG_GROUP LOG_GROUP_DBGF
|
---|
41 | #include <VBox/vmm/dbgf.h>
|
---|
42 | #include <VBox/vmm/hm.h>
|
---|
43 | #include <VBox/vmm/pdmapi.h>
|
---|
44 | #include <VBox/vmm/mm.h>
|
---|
45 | #include "DBGFInternal.h"
|
---|
46 | #include <VBox/vmm/uvm.h>
|
---|
47 | #include <VBox/vmm/vm.h>
|
---|
48 | #include <VBox/err.h>
|
---|
49 | #include <VBox/log.h>
|
---|
50 |
|
---|
51 | #include <iprt/asm.h>
|
---|
52 | #include <iprt/assert.h>
|
---|
53 | #include <iprt/ctype.h>
|
---|
54 | #include <iprt/env.h>
|
---|
55 | #include <iprt/mem.h>
|
---|
56 | #include <iprt/path.h>
|
---|
57 | #include <iprt/param.h>
|
---|
58 |
|
---|
59 |
|
---|
60 | /*********************************************************************************************************************************
|
---|
61 | * Structures and Typedefs *
|
---|
62 | *********************************************************************************************************************************/
|
---|
63 | /**
|
---|
64 | * Address space database node.
|
---|
65 | */
|
---|
66 | typedef struct DBGFASDBNODE
|
---|
67 | {
|
---|
68 | /** The node core for DBGF::AsHandleTree, the key is the address space handle. */
|
---|
69 | AVLPVNODECORE HandleCore;
|
---|
70 | /** The node core for DBGF::AsPidTree, the key is the process id. */
|
---|
71 | AVLU32NODECORE PidCore;
|
---|
72 | /** The node core for DBGF::AsNameSpace, the string is the address space name. */
|
---|
73 | RTSTRSPACECORE NameCore;
|
---|
74 |
|
---|
75 | } DBGFASDBNODE;
|
---|
76 | /** Pointer to an address space database node. */
|
---|
77 | typedef DBGFASDBNODE *PDBGFASDBNODE;
|
---|
78 |
|
---|
79 |
|
---|
80 | /**
|
---|
81 | * For dbgfR3AsLoadImageOpenData and dbgfR3AsLoadMapOpenData.
|
---|
82 | */
|
---|
83 | typedef struct DBGFR3ASLOADOPENDATA
|
---|
84 | {
|
---|
85 | const char *pszModName;
|
---|
86 | RTGCUINTPTR uSubtrahend;
|
---|
87 | uint32_t fFlags;
|
---|
88 | RTDBGMOD hMod;
|
---|
89 | } DBGFR3ASLOADOPENDATA;
|
---|
90 |
|
---|
91 | #if 0 /* unused */
|
---|
92 | /**
|
---|
93 | * Callback for dbgfR3AsSearchPath and dbgfR3AsSearchEnvPath.
|
---|
94 | *
|
---|
95 | * @returns VBox status code. If success, then the search is completed.
|
---|
96 | * @param pszFilename The file name under evaluation.
|
---|
97 | * @param pvUser The user argument.
|
---|
98 | */
|
---|
99 | typedef int FNDBGFR3ASSEARCHOPEN(const char *pszFilename, void *pvUser);
|
---|
100 | /** Pointer to a FNDBGFR3ASSEARCHOPEN. */
|
---|
101 | typedef FNDBGFR3ASSEARCHOPEN *PFNDBGFR3ASSEARCHOPEN;
|
---|
102 | #endif
|
---|
103 |
|
---|
104 |
|
---|
105 | /*********************************************************************************************************************************
|
---|
106 | * Defined Constants And Macros *
|
---|
107 | *********************************************************************************************************************************/
|
---|
108 | /** Locks the address space database for writing. */
|
---|
109 | #define DBGF_AS_DB_LOCK_WRITE(pUVM) \
|
---|
110 | do { \
|
---|
111 | int rcSem = RTSemRWRequestWrite((pUVM)->dbgf.s.hAsDbLock, RT_INDEFINITE_WAIT); \
|
---|
112 | AssertRC(rcSem); \
|
---|
113 | } while (0)
|
---|
114 |
|
---|
115 | /** Unlocks the address space database after writing. */
|
---|
116 | #define DBGF_AS_DB_UNLOCK_WRITE(pUVM) \
|
---|
117 | do { \
|
---|
118 | int rcSem = RTSemRWReleaseWrite((pUVM)->dbgf.s.hAsDbLock); \
|
---|
119 | AssertRC(rcSem); \
|
---|
120 | } while (0)
|
---|
121 |
|
---|
122 | /** Locks the address space database for reading. */
|
---|
123 | #define DBGF_AS_DB_LOCK_READ(pUVM) \
|
---|
124 | do { \
|
---|
125 | int rcSem = RTSemRWRequestRead((pUVM)->dbgf.s.hAsDbLock, RT_INDEFINITE_WAIT); \
|
---|
126 | AssertRC(rcSem); \
|
---|
127 | } while (0)
|
---|
128 |
|
---|
129 | /** Unlocks the address space database after reading. */
|
---|
130 | #define DBGF_AS_DB_UNLOCK_READ(pUVM) \
|
---|
131 | do { \
|
---|
132 | int rcSem = RTSemRWReleaseRead((pUVM)->dbgf.s.hAsDbLock); \
|
---|
133 | AssertRC(rcSem); \
|
---|
134 | } while (0)
|
---|
135 |
|
---|
136 |
|
---|
137 |
|
---|
138 | /**
|
---|
139 | * Initializes the address space parts of DBGF.
|
---|
140 | *
|
---|
141 | * @returns VBox status code.
|
---|
142 | * @param pUVM The user mode VM handle.
|
---|
143 | */
|
---|
144 | int dbgfR3AsInit(PUVM pUVM)
|
---|
145 | {
|
---|
146 | Assert(pUVM->pVM);
|
---|
147 |
|
---|
148 | /*
|
---|
149 | * Create the semaphore.
|
---|
150 | */
|
---|
151 | int rc = RTSemRWCreate(&pUVM->dbgf.s.hAsDbLock);
|
---|
152 | AssertRCReturn(rc, rc);
|
---|
153 |
|
---|
154 | /*
|
---|
155 | * Create the debugging config instance and set it up, defaulting to
|
---|
156 | * deferred loading in order to keep things fast.
|
---|
157 | */
|
---|
158 | rc = RTDbgCfgCreate(&pUVM->dbgf.s.hDbgCfg, NULL, true /*fNativePaths*/);
|
---|
159 | AssertRCReturn(rc, rc);
|
---|
160 | rc = RTDbgCfgChangeUInt(pUVM->dbgf.s.hDbgCfg, RTDBGCFGPROP_FLAGS, RTDBGCFGOP_PREPEND,
|
---|
161 | RTDBGCFG_FLAGS_DEFERRED);
|
---|
162 | AssertRCReturn(rc, rc);
|
---|
163 |
|
---|
164 | static struct
|
---|
165 | {
|
---|
166 | RTDBGCFGPROP enmProp;
|
---|
167 | const char *pszEnvName;
|
---|
168 | const char *pszCfgName;
|
---|
169 | } const s_aProps[] =
|
---|
170 | {
|
---|
171 | { RTDBGCFGPROP_FLAGS, "VBOXDBG_FLAGS", "Flags" },
|
---|
172 | { RTDBGCFGPROP_PATH, "VBOXDBG_PATH", "Path" },
|
---|
173 | { RTDBGCFGPROP_SUFFIXES, "VBOXDBG_SUFFIXES", "Suffixes" },
|
---|
174 | { RTDBGCFGPROP_SRC_PATH, "VBOXDBG_SRC_PATH", "SrcPath" },
|
---|
175 | };
|
---|
176 | PCFGMNODE pCfgDbgf = CFGMR3GetChild(CFGMR3GetRootU(pUVM), "/DBGF");
|
---|
177 | for (unsigned i = 0; i < RT_ELEMENTS(s_aProps); i++)
|
---|
178 | {
|
---|
179 | char szEnvValue[8192];
|
---|
180 | rc = RTEnvGetEx(RTENV_DEFAULT, s_aProps[i].pszEnvName, szEnvValue, sizeof(szEnvValue), NULL);
|
---|
181 | if (RT_SUCCESS(rc))
|
---|
182 | {
|
---|
183 | rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, s_aProps[i].enmProp, RTDBGCFGOP_PREPEND, szEnvValue);
|
---|
184 | if (RT_FAILURE(rc))
|
---|
185 | return VMR3SetError(pUVM, rc, RT_SRC_POS,
|
---|
186 | "DBGF Config Error: %s=%s -> %Rrc", s_aProps[i].pszEnvName, szEnvValue, rc);
|
---|
187 | }
|
---|
188 | else if (rc != VERR_ENV_VAR_NOT_FOUND)
|
---|
189 | return VMR3SetError(pUVM, rc, RT_SRC_POS,
|
---|
190 | "DBGF Config Error: Error querying env.var. %s: %Rrc", s_aProps[i].pszEnvName, rc);
|
---|
191 |
|
---|
192 | char *pszCfgValue;
|
---|
193 | rc = CFGMR3QueryStringAllocDef(pCfgDbgf, s_aProps[i].pszCfgName, &pszCfgValue, NULL);
|
---|
194 | if (RT_FAILURE(rc))
|
---|
195 | return VMR3SetError(pUVM, rc, RT_SRC_POS,
|
---|
196 | "DBGF Config Error: Querying /DBGF/%s -> %Rrc", s_aProps[i].pszCfgName, rc);
|
---|
197 | if (pszCfgValue)
|
---|
198 | {
|
---|
199 | rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, s_aProps[i].enmProp, RTDBGCFGOP_PREPEND, pszCfgValue);
|
---|
200 | if (RT_FAILURE(rc))
|
---|
201 | return VMR3SetError(pUVM, rc, RT_SRC_POS,
|
---|
202 | "DBGF Config Error: /DBGF/%s=%s -> %Rrc", s_aProps[i].pszCfgName, pszCfgValue, rc);
|
---|
203 | MMR3HeapFree(pszCfgValue);
|
---|
204 | }
|
---|
205 | }
|
---|
206 |
|
---|
207 | /*
|
---|
208 | * Prepend the NoArch and VBoxDbgSyms directories to the path.
|
---|
209 | */
|
---|
210 | char szPath[RTPATH_MAX];
|
---|
211 | rc = RTPathAppPrivateNoArch(szPath, sizeof(szPath));
|
---|
212 | AssertRCReturn(rc, rc);
|
---|
213 | #ifdef RT_OS_DARWIN
|
---|
214 | rc = RTPathAppend(szPath, sizeof(szPath), "../Resources/VBoxDbgSyms/");
|
---|
215 | #else
|
---|
216 | rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, RTDBGCFGPROP_PATH, RTDBGCFGOP_PREPEND, szPath);
|
---|
217 | AssertRCReturn(rc, rc);
|
---|
218 |
|
---|
219 | rc = RTPathAppend(szPath, sizeof(szPath), "VBoxDbgSyms/");
|
---|
220 | #endif
|
---|
221 | AssertRCReturn(rc, rc);
|
---|
222 | rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, RTDBGCFGPROP_PATH, RTDBGCFGOP_PREPEND, szPath);
|
---|
223 | AssertRCReturn(rc, rc);
|
---|
224 |
|
---|
225 | /*
|
---|
226 | * Create the standard address spaces.
|
---|
227 | */
|
---|
228 | RTDBGAS hDbgAs;
|
---|
229 | rc = RTDbgAsCreate(&hDbgAs, 0, RTGCPTR_MAX, "Global");
|
---|
230 | AssertRCReturn(rc, rc);
|
---|
231 | rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
|
---|
232 | AssertRCReturn(rc, rc);
|
---|
233 | pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_GLOBAL)] = hDbgAs;
|
---|
234 |
|
---|
235 | RTDbgAsRetain(hDbgAs);
|
---|
236 | pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_KERNEL)] = hDbgAs;
|
---|
237 |
|
---|
238 | rc = RTDbgAsCreate(&hDbgAs, 0, RTGCPHYS_MAX, "Physical");
|
---|
239 | AssertRCReturn(rc, rc);
|
---|
240 | rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
|
---|
241 | AssertRCReturn(rc, rc);
|
---|
242 | pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_PHYS)] = hDbgAs;
|
---|
243 |
|
---|
244 | rc = RTDbgAsCreate(&hDbgAs, 0, RTRCPTR_MAX, "HyperRawMode");
|
---|
245 | AssertRCReturn(rc, rc);
|
---|
246 | rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
|
---|
247 | AssertRCReturn(rc, rc);
|
---|
248 | pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_RC)] = hDbgAs;
|
---|
249 | RTDbgAsRetain(hDbgAs);
|
---|
250 | pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_RC_AND_GC_GLOBAL)] = hDbgAs;
|
---|
251 |
|
---|
252 | rc = RTDbgAsCreate(&hDbgAs, 0, RTR0PTR_MAX, "HyperRing0");
|
---|
253 | AssertRCReturn(rc, rc);
|
---|
254 | rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
|
---|
255 | AssertRCReturn(rc, rc);
|
---|
256 | pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_R0)] = hDbgAs;
|
---|
257 |
|
---|
258 | return VINF_SUCCESS;
|
---|
259 | }
|
---|
260 |
|
---|
261 |
|
---|
262 | /**
|
---|
263 | * Callback used by dbgfR3AsTerm / RTAvlPVDestroy to release an address space.
|
---|
264 | *
|
---|
265 | * @returns 0.
|
---|
266 | * @param pNode The address space database node.
|
---|
267 | * @param pvIgnore NULL.
|
---|
268 | */
|
---|
269 | static DECLCALLBACK(int) dbgfR3AsTermDestroyNode(PAVLPVNODECORE pNode, void *pvIgnore)
|
---|
270 | {
|
---|
271 | PDBGFASDBNODE pDbNode = (PDBGFASDBNODE)pNode;
|
---|
272 | RTDbgAsRelease((RTDBGAS)pDbNode->HandleCore.Key);
|
---|
273 | pDbNode->HandleCore.Key = NIL_RTDBGAS;
|
---|
274 | /* Don't bother freeing it here as MM will free it soon and MM is much at
|
---|
275 | it when doing it wholesale instead of piecemeal. */
|
---|
276 | NOREF(pvIgnore);
|
---|
277 | return 0;
|
---|
278 | }
|
---|
279 |
|
---|
280 |
|
---|
281 | /**
|
---|
282 | * Terminates the address space parts of DBGF.
|
---|
283 | *
|
---|
284 | * @param pUVM The user mode VM handle.
|
---|
285 | */
|
---|
286 | void dbgfR3AsTerm(PUVM pUVM)
|
---|
287 | {
|
---|
288 | /*
|
---|
289 | * Create the semaphore.
|
---|
290 | */
|
---|
291 | int rc = RTSemRWDestroy(pUVM->dbgf.s.hAsDbLock);
|
---|
292 | AssertRC(rc);
|
---|
293 | pUVM->dbgf.s.hAsDbLock = NIL_RTSEMRW;
|
---|
294 |
|
---|
295 | /*
|
---|
296 | * Release all the address spaces.
|
---|
297 | */
|
---|
298 | RTAvlPVDestroy(&pUVM->dbgf.s.AsHandleTree, dbgfR3AsTermDestroyNode, NULL);
|
---|
299 | for (size_t i = 0; i < RT_ELEMENTS(pUVM->dbgf.s.ahAsAliases); i++)
|
---|
300 | {
|
---|
301 | RTDbgAsRelease(pUVM->dbgf.s.ahAsAliases[i]);
|
---|
302 | pUVM->dbgf.s.ahAsAliases[i] = NIL_RTDBGAS;
|
---|
303 | }
|
---|
304 |
|
---|
305 | /*
|
---|
306 | * Release the reference to the debugging config.
|
---|
307 | */
|
---|
308 | rc = RTDbgCfgRelease(pUVM->dbgf.s.hDbgCfg);
|
---|
309 | AssertRC(rc);
|
---|
310 | }
|
---|
311 |
|
---|
312 |
|
---|
313 | /**
|
---|
314 | * Relocates the RC address space.
|
---|
315 | *
|
---|
316 | * @param pUVM The user mode VM handle.
|
---|
317 | * @param offDelta The relocation delta.
|
---|
318 | */
|
---|
319 | void dbgfR3AsRelocate(PUVM pUVM, RTGCUINTPTR offDelta)
|
---|
320 | {
|
---|
321 | /*
|
---|
322 | * We will relocate the raw-mode context modules by offDelta if they have
|
---|
323 | * been injected into the DBGF_AS_RC map.
|
---|
324 | */
|
---|
325 | if ( pUVM->dbgf.s.afAsAliasPopuplated[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_RC)]
|
---|
326 | && offDelta != 0)
|
---|
327 | {
|
---|
328 | RTDBGAS hAs = pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_RC)];
|
---|
329 |
|
---|
330 | /* Take a snapshot of the modules as we might have overlapping
|
---|
331 | addresses between the previous and new mapping. */
|
---|
332 | RTDbgAsLockExcl(hAs);
|
---|
333 | uint32_t cModules = RTDbgAsModuleCount(hAs);
|
---|
334 | if (cModules > 0 && cModules < _4K)
|
---|
335 | {
|
---|
336 | struct DBGFASRELOCENTRY
|
---|
337 | {
|
---|
338 | RTDBGMOD hDbgMod;
|
---|
339 | RTRCPTR uOldAddr;
|
---|
340 | } *paEntries = (struct DBGFASRELOCENTRY *)RTMemTmpAllocZ(sizeof(paEntries[0]) * cModules);
|
---|
341 | if (paEntries)
|
---|
342 | {
|
---|
343 | /* Snapshot. */
|
---|
344 | for (uint32_t i = 0; i < cModules; i++)
|
---|
345 | {
|
---|
346 | paEntries[i].hDbgMod = RTDbgAsModuleByIndex(hAs, i);
|
---|
347 | AssertLogRelMsg(paEntries[i].hDbgMod != NIL_RTDBGMOD, ("iModule=%#x\n", i));
|
---|
348 |
|
---|
349 | RTDBGASMAPINFO aMappings[1] = { { 0, 0 } };
|
---|
350 | uint32_t cMappings = 1;
|
---|
351 | int rc = RTDbgAsModuleQueryMapByIndex(hAs, i, &aMappings[0], &cMappings, 0 /*fFlags*/);
|
---|
352 | if (RT_SUCCESS(rc) && cMappings == 1 && aMappings[0].iSeg == NIL_RTDBGSEGIDX)
|
---|
353 | paEntries[i].uOldAddr = (RTRCPTR)aMappings[0].Address;
|
---|
354 | else
|
---|
355 | AssertLogRelMsgFailed(("iModule=%#x rc=%Rrc cMappings=%#x.\n", i, rc, cMappings));
|
---|
356 | }
|
---|
357 |
|
---|
358 | /* Unlink them. */
|
---|
359 | for (uint32_t i = 0; i < cModules; i++)
|
---|
360 | {
|
---|
361 | int rc = RTDbgAsModuleUnlink(hAs, paEntries[i].hDbgMod);
|
---|
362 | AssertLogRelMsg(RT_SUCCESS(rc), ("iModule=%#x rc=%Rrc hDbgMod=%p\n", i, rc, paEntries[i].hDbgMod));
|
---|
363 | }
|
---|
364 |
|
---|
365 | /* Link them at the new locations. */
|
---|
366 | for (uint32_t i = 0; i < cModules; i++)
|
---|
367 | {
|
---|
368 | RTRCPTR uNewAddr = paEntries[i].uOldAddr + offDelta;
|
---|
369 | int rc = RTDbgAsModuleLink(hAs, paEntries[i].hDbgMod, uNewAddr,
|
---|
370 | RTDBGASLINK_FLAGS_REPLACE);
|
---|
371 | AssertLogRelMsg(RT_SUCCESS(rc),
|
---|
372 | ("iModule=%#x rc=%Rrc hDbgMod=%p %RRv -> %RRv\n", i, rc, paEntries[i].hDbgMod,
|
---|
373 | paEntries[i].uOldAddr, uNewAddr));
|
---|
374 | RTDbgModRelease(paEntries[i].hDbgMod);
|
---|
375 | }
|
---|
376 |
|
---|
377 | RTMemTmpFree(paEntries);
|
---|
378 | }
|
---|
379 | else
|
---|
380 | AssertLogRelMsgFailed(("No memory for %#x modules.\n", cModules));
|
---|
381 | }
|
---|
382 | else
|
---|
383 | AssertLogRelMsgFailed(("cModules=%#x\n", cModules));
|
---|
384 | RTDbgAsUnlockExcl(hAs);
|
---|
385 | }
|
---|
386 | }
|
---|
387 |
|
---|
388 |
|
---|
389 | /**
|
---|
390 | * Gets the IPRT debugging configuration handle (no refs retained).
|
---|
391 | *
|
---|
392 | * @returns Config handle or NIL_RTDBGCFG.
|
---|
393 | * @param pUVM The user mode VM handle.
|
---|
394 | */
|
---|
395 | VMMR3DECL(RTDBGCFG) DBGFR3AsGetConfig(PUVM pUVM)
|
---|
396 | {
|
---|
397 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, NIL_RTDBGCFG);
|
---|
398 | return pUVM->dbgf.s.hDbgCfg;
|
---|
399 | }
|
---|
400 |
|
---|
401 |
|
---|
402 | /**
|
---|
403 | * Adds the address space to the database.
|
---|
404 | *
|
---|
405 | * @returns VBox status code.
|
---|
406 | * @param pUVM The user mode VM handle.
|
---|
407 | * @param hDbgAs The address space handle. The reference of the caller
|
---|
408 | * will NOT be consumed.
|
---|
409 | * @param ProcId The process id or NIL_RTPROCESS.
|
---|
410 | */
|
---|
411 | VMMR3DECL(int) DBGFR3AsAdd(PUVM pUVM, RTDBGAS hDbgAs, RTPROCESS ProcId)
|
---|
412 | {
|
---|
413 | /*
|
---|
414 | * Input validation.
|
---|
415 | */
|
---|
416 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
417 | const char *pszName = RTDbgAsName(hDbgAs);
|
---|
418 | if (!pszName)
|
---|
419 | return VERR_INVALID_HANDLE;
|
---|
420 | uint32_t cRefs = RTDbgAsRetain(hDbgAs);
|
---|
421 | if (cRefs == UINT32_MAX)
|
---|
422 | return VERR_INVALID_HANDLE;
|
---|
423 |
|
---|
424 | /*
|
---|
425 | * Allocate a tracking node.
|
---|
426 | */
|
---|
427 | int rc = VERR_NO_MEMORY;
|
---|
428 | PDBGFASDBNODE pDbNode = (PDBGFASDBNODE)MMR3HeapAllocU(pUVM, MM_TAG_DBGF_AS, sizeof(*pDbNode));
|
---|
429 | if (pDbNode)
|
---|
430 | {
|
---|
431 | pDbNode->HandleCore.Key = hDbgAs;
|
---|
432 | pDbNode->PidCore.Key = ProcId;
|
---|
433 | pDbNode->NameCore.pszString = pszName;
|
---|
434 | pDbNode->NameCore.cchString = strlen(pszName);
|
---|
435 | DBGF_AS_DB_LOCK_WRITE(pUVM);
|
---|
436 | if (RTStrSpaceInsert(&pUVM->dbgf.s.AsNameSpace, &pDbNode->NameCore))
|
---|
437 | {
|
---|
438 | if (RTAvlPVInsert(&pUVM->dbgf.s.AsHandleTree, &pDbNode->HandleCore))
|
---|
439 | {
|
---|
440 | DBGF_AS_DB_UNLOCK_WRITE(pUVM);
|
---|
441 | return VINF_SUCCESS;
|
---|
442 | }
|
---|
443 |
|
---|
444 | /* bail out */
|
---|
445 | RTStrSpaceRemove(&pUVM->dbgf.s.AsNameSpace, pszName);
|
---|
446 | }
|
---|
447 | DBGF_AS_DB_UNLOCK_WRITE(pUVM);
|
---|
448 | MMR3HeapFree(pDbNode);
|
---|
449 | }
|
---|
450 | RTDbgAsRelease(hDbgAs);
|
---|
451 | return rc;
|
---|
452 | }
|
---|
453 |
|
---|
454 |
|
---|
455 | /**
|
---|
456 | * Delete an address space from the database.
|
---|
457 | *
|
---|
458 | * The address space must not be engaged as any of the standard aliases.
|
---|
459 | *
|
---|
460 | * @returns VBox status code.
|
---|
461 | * @retval VERR_SHARING_VIOLATION if in use as an alias.
|
---|
462 | * @retval VERR_NOT_FOUND if not found in the address space database.
|
---|
463 | *
|
---|
464 | * @param pUVM The user mode VM handle.
|
---|
465 | * @param hDbgAs The address space handle. Aliases are not allowed.
|
---|
466 | */
|
---|
467 | VMMR3DECL(int) DBGFR3AsDelete(PUVM pUVM, RTDBGAS hDbgAs)
|
---|
468 | {
|
---|
469 | /*
|
---|
470 | * Input validation. Retain the address space so it can be released outside
|
---|
471 | * the lock as well as validated.
|
---|
472 | */
|
---|
473 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
474 | if (hDbgAs == NIL_RTDBGAS)
|
---|
475 | return VINF_SUCCESS;
|
---|
476 | uint32_t cRefs = RTDbgAsRetain(hDbgAs);
|
---|
477 | if (cRefs == UINT32_MAX)
|
---|
478 | return VERR_INVALID_HANDLE;
|
---|
479 | RTDbgAsRelease(hDbgAs);
|
---|
480 |
|
---|
481 | DBGF_AS_DB_LOCK_WRITE(pUVM);
|
---|
482 |
|
---|
483 | /*
|
---|
484 | * You cannot delete any of the aliases.
|
---|
485 | */
|
---|
486 | for (size_t i = 0; i < RT_ELEMENTS(pUVM->dbgf.s.ahAsAliases); i++)
|
---|
487 | if (pUVM->dbgf.s.ahAsAliases[i] == hDbgAs)
|
---|
488 | {
|
---|
489 | DBGF_AS_DB_UNLOCK_WRITE(pUVM);
|
---|
490 | return VERR_SHARING_VIOLATION;
|
---|
491 | }
|
---|
492 |
|
---|
493 | /*
|
---|
494 | * Ok, try remove it from the database.
|
---|
495 | */
|
---|
496 | PDBGFASDBNODE pDbNode = (PDBGFASDBNODE)RTAvlPVRemove(&pUVM->dbgf.s.AsHandleTree, hDbgAs);
|
---|
497 | if (!pDbNode)
|
---|
498 | {
|
---|
499 | DBGF_AS_DB_UNLOCK_WRITE(pUVM);
|
---|
500 | return VERR_NOT_FOUND;
|
---|
501 | }
|
---|
502 | RTStrSpaceRemove(&pUVM->dbgf.s.AsNameSpace, pDbNode->NameCore.pszString);
|
---|
503 | if (pDbNode->PidCore.Key != NIL_RTPROCESS)
|
---|
504 | RTAvlU32Remove(&pUVM->dbgf.s.AsPidTree, pDbNode->PidCore.Key);
|
---|
505 |
|
---|
506 | DBGF_AS_DB_UNLOCK_WRITE(pUVM);
|
---|
507 |
|
---|
508 | /*
|
---|
509 | * Free the resources.
|
---|
510 | */
|
---|
511 | RTDbgAsRelease(hDbgAs);
|
---|
512 | MMR3HeapFree(pDbNode);
|
---|
513 |
|
---|
514 | return VINF_SUCCESS;
|
---|
515 | }
|
---|
516 |
|
---|
517 |
|
---|
518 | /**
|
---|
519 | * Changes an alias to point to a new address space.
|
---|
520 | *
|
---|
521 | * Not all the aliases can be changed, currently it's only DBGF_AS_GLOBAL
|
---|
522 | * and DBGF_AS_KERNEL.
|
---|
523 | *
|
---|
524 | * @returns VBox status code.
|
---|
525 | * @param pUVM The user mode VM handle.
|
---|
526 | * @param hAlias The alias to change.
|
---|
527 | * @param hAliasFor The address space hAlias should be an alias for. This
|
---|
528 | * can be an alias. The caller's reference to this address
|
---|
529 | * space will NOT be consumed.
|
---|
530 | */
|
---|
531 | VMMR3DECL(int) DBGFR3AsSetAlias(PUVM pUVM, RTDBGAS hAlias, RTDBGAS hAliasFor)
|
---|
532 | {
|
---|
533 | /*
|
---|
534 | * Input validation.
|
---|
535 | */
|
---|
536 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
537 | AssertMsgReturn(DBGF_AS_IS_ALIAS(hAlias), ("%p\n", hAlias), VERR_INVALID_PARAMETER);
|
---|
538 | AssertMsgReturn(!DBGF_AS_IS_FIXED_ALIAS(hAlias), ("%p\n", hAlias), VERR_INVALID_PARAMETER);
|
---|
539 | RTDBGAS hRealAliasFor = DBGFR3AsResolveAndRetain(pUVM, hAliasFor);
|
---|
540 | if (hRealAliasFor == NIL_RTDBGAS)
|
---|
541 | return VERR_INVALID_HANDLE;
|
---|
542 |
|
---|
543 | /*
|
---|
544 | * Make sure the handle is already in the database.
|
---|
545 | */
|
---|
546 | int rc = VERR_NOT_FOUND;
|
---|
547 | DBGF_AS_DB_LOCK_WRITE(pUVM);
|
---|
548 | if (RTAvlPVGet(&pUVM->dbgf.s.AsHandleTree, hRealAliasFor))
|
---|
549 | {
|
---|
550 | /*
|
---|
551 | * Update the alias table and release the current address space.
|
---|
552 | */
|
---|
553 | RTDBGAS hAsOld;
|
---|
554 | ASMAtomicXchgHandle(&pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(hAlias)], hRealAliasFor, &hAsOld);
|
---|
555 | uint32_t cRefs = RTDbgAsRelease(hAsOld);
|
---|
556 | Assert(cRefs > 0); Assert(cRefs != UINT32_MAX); NOREF(cRefs);
|
---|
557 | rc = VINF_SUCCESS;
|
---|
558 | }
|
---|
559 | else
|
---|
560 | RTDbgAsRelease(hRealAliasFor);
|
---|
561 | DBGF_AS_DB_UNLOCK_WRITE(pUVM);
|
---|
562 |
|
---|
563 | return rc;
|
---|
564 | }
|
---|
565 |
|
---|
566 |
|
---|
567 | /**
|
---|
568 | * @callback_method_impl{FNPDMR3ENUM}
|
---|
569 | */
|
---|
570 | static DECLCALLBACK(int) dbgfR3AsLazyPopulateR0Callback(PVM pVM, const char *pszFilename, const char *pszName,
|
---|
571 | RTUINTPTR ImageBase, size_t cbImage, PDMLDRCTX enmCtx, void *pvArg)
|
---|
572 | {
|
---|
573 | NOREF(pVM); NOREF(cbImage);
|
---|
574 |
|
---|
575 | /* Only ring-0 modules. */
|
---|
576 | if (enmCtx == PDMLDRCTX_RING_0)
|
---|
577 | {
|
---|
578 | RTDBGMOD hDbgMod;
|
---|
579 | int rc = RTDbgModCreateFromImage(&hDbgMod, pszFilename, pszName, RTLDRARCH_HOST, pVM->pUVM->dbgf.s.hDbgCfg);
|
---|
580 | if (RT_SUCCESS(rc))
|
---|
581 | {
|
---|
582 | rc = RTDbgAsModuleLink((RTDBGAS)pvArg, hDbgMod, ImageBase, 0 /*fFlags*/);
|
---|
583 | if (RT_FAILURE(rc))
|
---|
584 | LogRel(("DBGF: Failed to link module \"%s\" into DBGF_AS_R0 at %RTptr: %Rrc\n",
|
---|
585 | pszName, ImageBase, rc));
|
---|
586 | }
|
---|
587 | else
|
---|
588 | LogRel(("DBGF: RTDbgModCreateFromImage failed with rc=%Rrc for module \"%s\" (%s)\n",
|
---|
589 | rc, pszName, pszFilename));
|
---|
590 | }
|
---|
591 | return VINF_SUCCESS;
|
---|
592 | }
|
---|
593 |
|
---|
594 |
|
---|
595 | /**
|
---|
596 | * @callback_method_impl{FNPDMR3ENUM}
|
---|
597 | */
|
---|
598 | static DECLCALLBACK(int) dbgfR3AsLazyPopulateRCCallback(PVM pVM, const char *pszFilename, const char *pszName,
|
---|
599 | RTUINTPTR ImageBase, size_t cbImage, PDMLDRCTX enmCtx, void *pvArg)
|
---|
600 | {
|
---|
601 | NOREF(pVM); NOREF(cbImage);
|
---|
602 |
|
---|
603 | /* Only raw-mode modules. */
|
---|
604 | if (enmCtx == PDMLDRCTX_RAW_MODE)
|
---|
605 | {
|
---|
606 | RTDBGMOD hDbgMod;
|
---|
607 | int rc = RTDbgModCreateFromImage(&hDbgMod, pszFilename, pszName, RTLDRARCH_X86_32, pVM->pUVM->dbgf.s.hDbgCfg);
|
---|
608 | if (RT_SUCCESS(rc))
|
---|
609 | {
|
---|
610 | rc = RTDbgAsModuleLink((RTDBGAS)pvArg, hDbgMod, ImageBase, 0 /*fFlags*/);
|
---|
611 | if (RT_FAILURE(rc))
|
---|
612 | LogRel(("DBGF: Failed to link module \"%s\" into DBGF_AS_RC at %RTptr: %Rrc\n",
|
---|
613 | pszName, ImageBase, rc));
|
---|
614 | }
|
---|
615 | else
|
---|
616 | LogRel(("DBGF: RTDbgModCreateFromImage failed with rc=%Rrc for module \"%s\" (%s)\n",
|
---|
617 | rc, pszName, pszFilename));
|
---|
618 | }
|
---|
619 | return VINF_SUCCESS;
|
---|
620 | }
|
---|
621 |
|
---|
622 |
|
---|
623 | /**
|
---|
624 | * Lazily populates the specified address space.
|
---|
625 | *
|
---|
626 | * @param pUVM The user mode VM handle.
|
---|
627 | * @param hAlias The alias.
|
---|
628 | */
|
---|
629 | static void dbgfR3AsLazyPopulate(PUVM pUVM, RTDBGAS hAlias)
|
---|
630 | {
|
---|
631 | DBGF_AS_DB_LOCK_WRITE(pUVM);
|
---|
632 | uintptr_t iAlias = DBGF_AS_ALIAS_2_INDEX(hAlias);
|
---|
633 | if (!pUVM->dbgf.s.afAsAliasPopuplated[iAlias])
|
---|
634 | {
|
---|
635 | RTDBGAS hDbgAs = pUVM->dbgf.s.ahAsAliases[iAlias];
|
---|
636 | if (hAlias == DBGF_AS_R0 && pUVM->pVM)
|
---|
637 | PDMR3LdrEnumModules(pUVM->pVM, dbgfR3AsLazyPopulateR0Callback, hDbgAs);
|
---|
638 | else if (hAlias == DBGF_AS_RC && pUVM->pVM && VM_IS_RAW_MODE_ENABLED(pUVM->pVM))
|
---|
639 | {
|
---|
640 | LogRel(("DBGF: Lazy init of RC address space\n"));
|
---|
641 | PDMR3LdrEnumModules(pUVM->pVM, dbgfR3AsLazyPopulateRCCallback, hDbgAs);
|
---|
642 | }
|
---|
643 | else if (hAlias == DBGF_AS_PHYS && pUVM->pVM)
|
---|
644 | {
|
---|
645 | /** @todo Lazy load pc and vga bios symbols or the EFI stuff. */
|
---|
646 | }
|
---|
647 |
|
---|
648 | pUVM->dbgf.s.afAsAliasPopuplated[iAlias] = true;
|
---|
649 | }
|
---|
650 | DBGF_AS_DB_UNLOCK_WRITE(pUVM);
|
---|
651 | }
|
---|
652 |
|
---|
653 |
|
---|
654 | /**
|
---|
655 | * Resolves the address space handle into a real handle if it's an alias.
|
---|
656 | *
|
---|
657 | * @returns Real address space handle. NIL_RTDBGAS if invalid handle.
|
---|
658 | *
|
---|
659 | * @param pUVM The user mode VM handle.
|
---|
660 | * @param hAlias The possibly address space alias.
|
---|
661 | *
|
---|
662 | * @remarks Doesn't take any locks.
|
---|
663 | */
|
---|
664 | VMMR3DECL(RTDBGAS) DBGFR3AsResolve(PUVM pUVM, RTDBGAS hAlias)
|
---|
665 | {
|
---|
666 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
|
---|
667 | AssertCompileNS(NIL_RTDBGAS == (RTDBGAS)0);
|
---|
668 |
|
---|
669 | uintptr_t iAlias = DBGF_AS_ALIAS_2_INDEX(hAlias);
|
---|
670 | if (iAlias < DBGF_AS_COUNT)
|
---|
671 | ASMAtomicReadHandle(&pUVM->dbgf.s.ahAsAliases[iAlias], &hAlias);
|
---|
672 | return hAlias;
|
---|
673 | }
|
---|
674 |
|
---|
675 |
|
---|
676 | /**
|
---|
677 | * Resolves the address space handle into a real handle if it's an alias,
|
---|
678 | * and retains whatever it is.
|
---|
679 | *
|
---|
680 | * @returns Real address space handle. NIL_RTDBGAS if invalid handle.
|
---|
681 | *
|
---|
682 | * @param pUVM The user mode VM handle.
|
---|
683 | * @param hAlias The possibly address space alias.
|
---|
684 | */
|
---|
685 | VMMR3DECL(RTDBGAS) DBGFR3AsResolveAndRetain(PUVM pUVM, RTDBGAS hAlias)
|
---|
686 | {
|
---|
687 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
|
---|
688 | AssertCompileNS(NIL_RTDBGAS == (RTDBGAS)0);
|
---|
689 |
|
---|
690 | uint32_t cRefs;
|
---|
691 | uintptr_t iAlias = DBGF_AS_ALIAS_2_INDEX(hAlias);
|
---|
692 | if (iAlias < DBGF_AS_COUNT)
|
---|
693 | {
|
---|
694 | if (DBGF_AS_IS_FIXED_ALIAS(hAlias))
|
---|
695 | {
|
---|
696 | /* Perform lazy address space population. */
|
---|
697 | if (!pUVM->dbgf.s.afAsAliasPopuplated[iAlias])
|
---|
698 | dbgfR3AsLazyPopulate(pUVM, hAlias);
|
---|
699 |
|
---|
700 | /* Won't ever change, no need to grab the lock. */
|
---|
701 | hAlias = pUVM->dbgf.s.ahAsAliases[iAlias];
|
---|
702 | cRefs = RTDbgAsRetain(hAlias);
|
---|
703 | }
|
---|
704 | else
|
---|
705 | {
|
---|
706 | /* May change, grab the lock so we can read it safely. */
|
---|
707 | DBGF_AS_DB_LOCK_READ(pUVM);
|
---|
708 | hAlias = pUVM->dbgf.s.ahAsAliases[iAlias];
|
---|
709 | cRefs = RTDbgAsRetain(hAlias);
|
---|
710 | DBGF_AS_DB_UNLOCK_READ(pUVM);
|
---|
711 | }
|
---|
712 | }
|
---|
713 | else
|
---|
714 | /* Not an alias, just retain it. */
|
---|
715 | cRefs = RTDbgAsRetain(hAlias);
|
---|
716 |
|
---|
717 | return cRefs != UINT32_MAX ? hAlias : NIL_RTDBGAS;
|
---|
718 | }
|
---|
719 |
|
---|
720 |
|
---|
721 | /**
|
---|
722 | * Query an address space by name.
|
---|
723 | *
|
---|
724 | * @returns Retained address space handle if found, NIL_RTDBGAS if not.
|
---|
725 | *
|
---|
726 | * @param pUVM The user mode VM handle.
|
---|
727 | * @param pszName The name.
|
---|
728 | */
|
---|
729 | VMMR3DECL(RTDBGAS) DBGFR3AsQueryByName(PUVM pUVM, const char *pszName)
|
---|
730 | {
|
---|
731 | /*
|
---|
732 | * Validate the input.
|
---|
733 | */
|
---|
734 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, NIL_RTDBGAS);
|
---|
735 | AssertPtrReturn(pszName, NIL_RTDBGAS);
|
---|
736 | AssertReturn(*pszName, NIL_RTDBGAS);
|
---|
737 |
|
---|
738 | /*
|
---|
739 | * Look it up in the string space and retain the result.
|
---|
740 | */
|
---|
741 | RTDBGAS hDbgAs = NIL_RTDBGAS;
|
---|
742 | DBGF_AS_DB_LOCK_READ(pUVM);
|
---|
743 |
|
---|
744 | PRTSTRSPACECORE pNode = RTStrSpaceGet(&pUVM->dbgf.s.AsNameSpace, pszName);
|
---|
745 | if (pNode)
|
---|
746 | {
|
---|
747 | PDBGFASDBNODE pDbNode = RT_FROM_MEMBER(pNode, DBGFASDBNODE, NameCore);
|
---|
748 | hDbgAs = (RTDBGAS)pDbNode->HandleCore.Key;
|
---|
749 | uint32_t cRefs = RTDbgAsRetain(hDbgAs);
|
---|
750 | if (RT_UNLIKELY(cRefs == UINT32_MAX))
|
---|
751 | hDbgAs = NIL_RTDBGAS;
|
---|
752 | }
|
---|
753 |
|
---|
754 | DBGF_AS_DB_UNLOCK_READ(pUVM);
|
---|
755 | return hDbgAs;
|
---|
756 | }
|
---|
757 |
|
---|
758 |
|
---|
759 | /**
|
---|
760 | * Query an address space by process ID.
|
---|
761 | *
|
---|
762 | * @returns Retained address space handle if found, NIL_RTDBGAS if not.
|
---|
763 | *
|
---|
764 | * @param pUVM The user mode VM handle.
|
---|
765 | * @param ProcId The process ID.
|
---|
766 | */
|
---|
767 | VMMR3DECL(RTDBGAS) DBGFR3AsQueryByPid(PUVM pUVM, RTPROCESS ProcId)
|
---|
768 | {
|
---|
769 | /*
|
---|
770 | * Validate the input.
|
---|
771 | */
|
---|
772 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, NIL_RTDBGAS);
|
---|
773 | AssertReturn(ProcId != NIL_RTPROCESS, NIL_RTDBGAS);
|
---|
774 |
|
---|
775 | /*
|
---|
776 | * Look it up in the PID tree and retain the result.
|
---|
777 | */
|
---|
778 | RTDBGAS hDbgAs = NIL_RTDBGAS;
|
---|
779 | DBGF_AS_DB_LOCK_READ(pUVM);
|
---|
780 |
|
---|
781 | PAVLU32NODECORE pNode = RTAvlU32Get(&pUVM->dbgf.s.AsPidTree, ProcId);
|
---|
782 | if (pNode)
|
---|
783 | {
|
---|
784 | PDBGFASDBNODE pDbNode = RT_FROM_MEMBER(pNode, DBGFASDBNODE, PidCore);
|
---|
785 | hDbgAs = (RTDBGAS)pDbNode->HandleCore.Key;
|
---|
786 | uint32_t cRefs = RTDbgAsRetain(hDbgAs);
|
---|
787 | if (RT_UNLIKELY(cRefs == UINT32_MAX))
|
---|
788 | hDbgAs = NIL_RTDBGAS;
|
---|
789 | }
|
---|
790 | DBGF_AS_DB_UNLOCK_READ(pUVM);
|
---|
791 |
|
---|
792 | return hDbgAs;
|
---|
793 | }
|
---|
794 |
|
---|
795 | #if 0 /* unused */
|
---|
796 |
|
---|
797 | /**
|
---|
798 | * Searches for the file in the path.
|
---|
799 | *
|
---|
800 | * The file is first tested without any path modification, then we walk the path
|
---|
801 | * looking in each directory.
|
---|
802 | *
|
---|
803 | * @returns VBox status code.
|
---|
804 | * @param pszFilename The file to search for.
|
---|
805 | * @param pszPath The search path.
|
---|
806 | * @param pfnOpen The open callback function.
|
---|
807 | * @param pvUser User argument for the callback.
|
---|
808 | */
|
---|
809 | static int dbgfR3AsSearchPath(const char *pszFilename, const char *pszPath, PFNDBGFR3ASSEARCHOPEN pfnOpen, void *pvUser)
|
---|
810 | {
|
---|
811 | char szFound[RTPATH_MAX];
|
---|
812 |
|
---|
813 | /* Check the filename length. */
|
---|
814 | size_t const cchFilename = strlen(pszFilename);
|
---|
815 | if (cchFilename >= sizeof(szFound))
|
---|
816 | return VERR_FILENAME_TOO_LONG;
|
---|
817 | const char *pszName = RTPathFilename(pszFilename);
|
---|
818 | if (!pszName)
|
---|
819 | return VERR_IS_A_DIRECTORY;
|
---|
820 | size_t const cchName = strlen(pszName);
|
---|
821 |
|
---|
822 | /*
|
---|
823 | * Try default location first.
|
---|
824 | */
|
---|
825 | memcpy(szFound, pszFilename, cchFilename + 1);
|
---|
826 | int rc = pfnOpen(szFound, pvUser);
|
---|
827 | if (RT_SUCCESS(rc))
|
---|
828 | return rc;
|
---|
829 |
|
---|
830 | /*
|
---|
831 | * Walk the search path.
|
---|
832 | */
|
---|
833 | const char *psz = pszPath;
|
---|
834 | while (*psz)
|
---|
835 | {
|
---|
836 | /* Skip leading blanks - no directories with leading spaces, thank you. */
|
---|
837 | while (RT_C_IS_BLANK(*psz))
|
---|
838 | psz++;
|
---|
839 |
|
---|
840 | /* Find the end of this element. */
|
---|
841 | const char *pszNext;
|
---|
842 | const char *pszEnd = strchr(psz, ';');
|
---|
843 | if (!pszEnd)
|
---|
844 | pszEnd = pszNext = strchr(psz, '\0');
|
---|
845 | else
|
---|
846 | pszNext = pszEnd + 1;
|
---|
847 | if (pszEnd != psz)
|
---|
848 | {
|
---|
849 | size_t const cch = pszEnd - psz;
|
---|
850 | if (cch + 1 + cchName < sizeof(szFound))
|
---|
851 | {
|
---|
852 | /** @todo RTPathCompose, RTPathComposeN(). This code isn't right
|
---|
853 | * for 'E:' on DOS systems. It may also create unwanted double slashes. */
|
---|
854 | memcpy(szFound, psz, cch);
|
---|
855 | szFound[cch] = '/';
|
---|
856 | memcpy(szFound + cch + 1, pszName, cchName + 1);
|
---|
857 | int rc2 = pfnOpen(szFound, pvUser);
|
---|
858 | if (RT_SUCCESS(rc2))
|
---|
859 | return rc2;
|
---|
860 | if ( rc2 != rc
|
---|
861 | && ( rc == VERR_FILE_NOT_FOUND
|
---|
862 | || rc == VERR_OPEN_FAILED))
|
---|
863 | rc = rc2;
|
---|
864 | }
|
---|
865 | }
|
---|
866 |
|
---|
867 | /* advance */
|
---|
868 | psz = pszNext;
|
---|
869 | }
|
---|
870 |
|
---|
871 | /*
|
---|
872 | * Walk the path once again, this time do a depth search.
|
---|
873 | */
|
---|
874 | /** @todo do a depth search using the specified path. */
|
---|
875 |
|
---|
876 | /* failed */
|
---|
877 | return rc;
|
---|
878 | }
|
---|
879 |
|
---|
880 |
|
---|
881 | /**
|
---|
882 | * Same as dbgfR3AsSearchEnv, except that the path is taken from the environment.
|
---|
883 | *
|
---|
884 | * If the environment variable doesn't exist, the current directory is searched
|
---|
885 | * instead.
|
---|
886 | *
|
---|
887 | * @returns VBox status code.
|
---|
888 | * @param pszFilename The filename.
|
---|
889 | * @param pszEnvVar The environment variable name.
|
---|
890 | * @param pfnOpen The open callback function.
|
---|
891 | * @param pvUser User argument for the callback.
|
---|
892 | */
|
---|
893 | static int dbgfR3AsSearchEnvPath(const char *pszFilename, const char *pszEnvVar, PFNDBGFR3ASSEARCHOPEN pfnOpen, void *pvUser)
|
---|
894 | {
|
---|
895 | int rc;
|
---|
896 | char *pszPath = RTEnvDupEx(RTENV_DEFAULT, pszEnvVar);
|
---|
897 | if (pszPath)
|
---|
898 | {
|
---|
899 | rc = dbgfR3AsSearchPath(pszFilename, pszPath, pfnOpen, pvUser);
|
---|
900 | RTStrFree(pszPath);
|
---|
901 | }
|
---|
902 | else
|
---|
903 | rc = dbgfR3AsSearchPath(pszFilename, ".", pfnOpen, pvUser);
|
---|
904 | return rc;
|
---|
905 | }
|
---|
906 |
|
---|
907 |
|
---|
908 | /**
|
---|
909 | * Same as dbgfR3AsSearchEnv, except that the path is taken from the DBGF config
|
---|
910 | * (CFGM).
|
---|
911 | *
|
---|
912 | * Nothing is done if the CFGM variable isn't set.
|
---|
913 | *
|
---|
914 | * @returns VBox status code.
|
---|
915 | * @param pUVM The user mode VM handle.
|
---|
916 | * @param pszFilename The filename.
|
---|
917 | * @param pszCfgValue The name of the config variable (under /DBGF/).
|
---|
918 | * @param pfnOpen The open callback function.
|
---|
919 | * @param pvUser User argument for the callback.
|
---|
920 | */
|
---|
921 | static int dbgfR3AsSearchCfgPath(PUVM pUVM, const char *pszFilename, const char *pszCfgValue,
|
---|
922 | PFNDBGFR3ASSEARCHOPEN pfnOpen, void *pvUser)
|
---|
923 | {
|
---|
924 | char *pszPath;
|
---|
925 | int rc = CFGMR3QueryStringAllocDef(CFGMR3GetChild(CFGMR3GetRootU(pUVM), "/DBGF"), pszCfgValue, &pszPath, NULL);
|
---|
926 | if (RT_FAILURE(rc))
|
---|
927 | return rc;
|
---|
928 | if (!pszPath)
|
---|
929 | return VERR_FILE_NOT_FOUND;
|
---|
930 | rc = dbgfR3AsSearchPath(pszFilename, pszPath, pfnOpen, pvUser);
|
---|
931 | MMR3HeapFree(pszPath);
|
---|
932 | return rc;
|
---|
933 | }
|
---|
934 |
|
---|
935 | #endif /* unused */
|
---|
936 |
|
---|
937 |
|
---|
938 | /**
|
---|
939 | * Load symbols from an executable module into the specified address space.
|
---|
940 | *
|
---|
941 | * If an module exist at the specified address it will be replaced by this
|
---|
942 | * call, otherwise a new module is created.
|
---|
943 | *
|
---|
944 | * @returns VBox status code.
|
---|
945 | *
|
---|
946 | * @param pUVM The user mode VM handle.
|
---|
947 | * @param hDbgAs The address space.
|
---|
948 | * @param pszFilename The filename of the executable module.
|
---|
949 | * @param pszModName The module name. If NULL, then then the file name
|
---|
950 | * base is used (no extension or nothing).
|
---|
951 | * @param enmArch The desired architecture, use RTLDRARCH_WHATEVER if
|
---|
952 | * it's not relevant or known.
|
---|
953 | * @param pModAddress The load address of the module.
|
---|
954 | * @param iModSeg The segment to load, pass NIL_RTDBGSEGIDX to load
|
---|
955 | * the whole image.
|
---|
956 | * @param fFlags For DBGFR3AsLinkModule, see RTDBGASLINK_FLAGS_*.
|
---|
957 | */
|
---|
958 | VMMR3DECL(int) DBGFR3AsLoadImage(PUVM pUVM, RTDBGAS hDbgAs, const char *pszFilename, const char *pszModName, RTLDRARCH enmArch,
|
---|
959 | PCDBGFADDRESS pModAddress, RTDBGSEGIDX iModSeg, uint32_t fFlags)
|
---|
960 | {
|
---|
961 | /*
|
---|
962 | * Validate input
|
---|
963 | */
|
---|
964 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
965 | AssertPtrReturn(pszFilename, VERR_INVALID_POINTER);
|
---|
966 | AssertReturn(*pszFilename, VERR_INVALID_PARAMETER);
|
---|
967 | AssertReturn(DBGFR3AddrIsValid(pUVM, pModAddress), VERR_INVALID_PARAMETER);
|
---|
968 | AssertReturn(!(fFlags & ~RTDBGASLINK_FLAGS_VALID_MASK), VERR_INVALID_PARAMETER);
|
---|
969 | RTDBGAS hRealAS = DBGFR3AsResolveAndRetain(pUVM, hDbgAs);
|
---|
970 | if (hRealAS == NIL_RTDBGAS)
|
---|
971 | return VERR_INVALID_HANDLE;
|
---|
972 |
|
---|
973 | RTDBGMOD hDbgMod;
|
---|
974 | int rc = RTDbgModCreateFromImage(&hDbgMod, pszFilename, pszModName, enmArch, pUVM->dbgf.s.hDbgCfg);
|
---|
975 | if (RT_SUCCESS(rc))
|
---|
976 | {
|
---|
977 | rc = DBGFR3AsLinkModule(pUVM, hRealAS, hDbgMod, pModAddress, iModSeg, fFlags & RTDBGASLINK_FLAGS_VALID_MASK);
|
---|
978 | if (RT_FAILURE(rc))
|
---|
979 | RTDbgModRelease(hDbgMod);
|
---|
980 | }
|
---|
981 |
|
---|
982 | RTDbgAsRelease(hRealAS);
|
---|
983 | return rc;
|
---|
984 | }
|
---|
985 |
|
---|
986 |
|
---|
987 | /**
|
---|
988 | * Load symbols from a map file into a module at the specified address space.
|
---|
989 | *
|
---|
990 | * If an module exist at the specified address it will be replaced by this
|
---|
991 | * call, otherwise a new module is created.
|
---|
992 | *
|
---|
993 | * @returns VBox status code.
|
---|
994 | *
|
---|
995 | * @param pUVM The user mode VM handle.
|
---|
996 | * @param hDbgAs The address space.
|
---|
997 | * @param pszFilename The map file.
|
---|
998 | * @param pszModName The module name. If NULL, then then the file name
|
---|
999 | * base is used (no extension or nothing).
|
---|
1000 | * @param pModAddress The load address of the module.
|
---|
1001 | * @param iModSeg The segment to load, pass NIL_RTDBGSEGIDX to load
|
---|
1002 | * the whole image.
|
---|
1003 | * @param uSubtrahend Value to to subtract from the symbols in the map
|
---|
1004 | * file. This is useful for the linux System.map and
|
---|
1005 | * /proc/kallsyms.
|
---|
1006 | * @param fFlags Flags reserved for future extensions, must be 0.
|
---|
1007 | */
|
---|
1008 | VMMR3DECL(int) DBGFR3AsLoadMap(PUVM pUVM, RTDBGAS hDbgAs, const char *pszFilename, const char *pszModName,
|
---|
1009 | PCDBGFADDRESS pModAddress, RTDBGSEGIDX iModSeg, RTGCUINTPTR uSubtrahend, uint32_t fFlags)
|
---|
1010 | {
|
---|
1011 | /*
|
---|
1012 | * Validate input
|
---|
1013 | */
|
---|
1014 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
1015 | AssertPtrReturn(pszFilename, VERR_INVALID_POINTER);
|
---|
1016 | AssertReturn(*pszFilename, VERR_INVALID_PARAMETER);
|
---|
1017 | AssertReturn(DBGFR3AddrIsValid(pUVM, pModAddress), VERR_INVALID_PARAMETER);
|
---|
1018 | AssertReturn(fFlags == 0, VERR_INVALID_PARAMETER);
|
---|
1019 | RTDBGAS hRealAS = DBGFR3AsResolveAndRetain(pUVM, hDbgAs);
|
---|
1020 | if (hRealAS == NIL_RTDBGAS)
|
---|
1021 | return VERR_INVALID_HANDLE;
|
---|
1022 |
|
---|
1023 | RTDBGMOD hDbgMod;
|
---|
1024 | int rc = RTDbgModCreateFromMap(&hDbgMod, pszFilename, pszModName, uSubtrahend, pUVM->dbgf.s.hDbgCfg);
|
---|
1025 | if (RT_SUCCESS(rc))
|
---|
1026 | {
|
---|
1027 | rc = DBGFR3AsLinkModule(pUVM, hRealAS, hDbgMod, pModAddress, iModSeg, 0);
|
---|
1028 | if (RT_FAILURE(rc))
|
---|
1029 | RTDbgModRelease(hDbgMod);
|
---|
1030 | }
|
---|
1031 |
|
---|
1032 | RTDbgAsRelease(hRealAS);
|
---|
1033 | return rc;
|
---|
1034 | }
|
---|
1035 |
|
---|
1036 |
|
---|
1037 | /**
|
---|
1038 | * Wrapper around RTDbgAsModuleLink, RTDbgAsModuleLinkSeg and DBGFR3AsResolve.
|
---|
1039 | *
|
---|
1040 | * @returns VBox status code.
|
---|
1041 | * @param pUVM The user mode VM handle.
|
---|
1042 | * @param hDbgAs The address space handle.
|
---|
1043 | * @param hMod The module handle.
|
---|
1044 | * @param pModAddress The link address.
|
---|
1045 | * @param iModSeg The segment to link, NIL_RTDBGSEGIDX for the entire image.
|
---|
1046 | * @param fFlags Flags to pass to the link functions, see RTDBGASLINK_FLAGS_*.
|
---|
1047 | */
|
---|
1048 | VMMR3DECL(int) DBGFR3AsLinkModule(PUVM pUVM, RTDBGAS hDbgAs, RTDBGMOD hMod, PCDBGFADDRESS pModAddress,
|
---|
1049 | RTDBGSEGIDX iModSeg, uint32_t fFlags)
|
---|
1050 | {
|
---|
1051 | /*
|
---|
1052 | * Input validation.
|
---|
1053 | */
|
---|
1054 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
1055 | AssertReturn(DBGFR3AddrIsValid(pUVM, pModAddress), VERR_INVALID_PARAMETER);
|
---|
1056 | RTDBGAS hRealAS = DBGFR3AsResolveAndRetain(pUVM, hDbgAs);
|
---|
1057 | if (hRealAS == NIL_RTDBGAS)
|
---|
1058 | return VERR_INVALID_HANDLE;
|
---|
1059 |
|
---|
1060 | /*
|
---|
1061 | * Do the job.
|
---|
1062 | */
|
---|
1063 | int rc;
|
---|
1064 | if (iModSeg == NIL_RTDBGSEGIDX)
|
---|
1065 | rc = RTDbgAsModuleLink(hRealAS, hMod, pModAddress->FlatPtr, fFlags);
|
---|
1066 | else
|
---|
1067 | rc = RTDbgAsModuleLinkSeg(hRealAS, hMod, iModSeg, pModAddress->FlatPtr, fFlags);
|
---|
1068 |
|
---|
1069 | RTDbgAsRelease(hRealAS);
|
---|
1070 | return rc;
|
---|
1071 | }
|
---|
1072 |
|
---|
1073 |
|
---|
1074 | /**
|
---|
1075 | * Wrapper around RTDbgAsModuleByName and RTDbgAsModuleUnlink.
|
---|
1076 | *
|
---|
1077 | * Unlinks all mappings matching the given module name.
|
---|
1078 | *
|
---|
1079 | * @returns VBox status code.
|
---|
1080 | * @param pUVM The user mode VM handle.
|
---|
1081 | * @param hDbgAs The address space handle.
|
---|
1082 | * @param pszModName The name of the module to unlink.
|
---|
1083 | */
|
---|
1084 | VMMR3DECL(int) DBGFR3AsUnlinkModuleByName(PUVM pUVM, RTDBGAS hDbgAs, const char *pszModName)
|
---|
1085 | {
|
---|
1086 | /*
|
---|
1087 | * Input validation.
|
---|
1088 | */
|
---|
1089 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
1090 | RTDBGAS hRealAS = DBGFR3AsResolveAndRetain(pUVM, hDbgAs);
|
---|
1091 | if (hRealAS == NIL_RTDBGAS)
|
---|
1092 | return VERR_INVALID_HANDLE;
|
---|
1093 |
|
---|
1094 | /*
|
---|
1095 | * Do the job.
|
---|
1096 | */
|
---|
1097 | RTDBGMOD hMod;
|
---|
1098 | int rc = RTDbgAsModuleByName(hRealAS, pszModName, 0, &hMod);
|
---|
1099 | if (RT_SUCCESS(rc))
|
---|
1100 | {
|
---|
1101 | for (;;)
|
---|
1102 | {
|
---|
1103 | rc = RTDbgAsModuleUnlink(hRealAS, hMod);
|
---|
1104 | RTDbgModRelease(hMod);
|
---|
1105 | if (RT_FAILURE(rc))
|
---|
1106 | break;
|
---|
1107 | rc = RTDbgAsModuleByName(hRealAS, pszModName, 0, &hMod);
|
---|
1108 | if (RT_FAILURE_NP(rc))
|
---|
1109 | {
|
---|
1110 | if (rc == VERR_NOT_FOUND)
|
---|
1111 | rc = VINF_SUCCESS;
|
---|
1112 | break;
|
---|
1113 | }
|
---|
1114 | }
|
---|
1115 | }
|
---|
1116 |
|
---|
1117 | RTDbgAsRelease(hRealAS);
|
---|
1118 | return rc;
|
---|
1119 | }
|
---|
1120 |
|
---|
1121 |
|
---|
1122 | /**
|
---|
1123 | * Adds the module name to the symbol name.
|
---|
1124 | *
|
---|
1125 | * @param pSymbol The symbol info (in/out).
|
---|
1126 | * @param hMod The module handle.
|
---|
1127 | */
|
---|
1128 | static void dbgfR3AsSymbolJoinNames(PRTDBGSYMBOL pSymbol, RTDBGMOD hMod)
|
---|
1129 | {
|
---|
1130 | /* Figure the lengths, adjust them if the result is too long. */
|
---|
1131 | const char *pszModName = RTDbgModName(hMod);
|
---|
1132 | size_t cchModName = strlen(pszModName);
|
---|
1133 | size_t cchSymbol = strlen(pSymbol->szName);
|
---|
1134 | if (cchModName + 1 + cchSymbol >= sizeof(pSymbol->szName))
|
---|
1135 | {
|
---|
1136 | if (cchModName >= sizeof(pSymbol->szName) / 4)
|
---|
1137 | cchModName = sizeof(pSymbol->szName) / 4;
|
---|
1138 | if (cchModName + 1 + cchSymbol >= sizeof(pSymbol->szName))
|
---|
1139 | cchSymbol = sizeof(pSymbol->szName) - cchModName - 2;
|
---|
1140 | Assert(cchModName + 1 + cchSymbol < sizeof(pSymbol->szName));
|
---|
1141 | }
|
---|
1142 |
|
---|
1143 | /* Do the moving and copying. */
|
---|
1144 | memmove(&pSymbol->szName[cchModName + 1], &pSymbol->szName[0], cchSymbol + 1);
|
---|
1145 | memcpy(&pSymbol->szName[0], pszModName, cchModName);
|
---|
1146 | pSymbol->szName[cchModName] = '!';
|
---|
1147 | }
|
---|
1148 |
|
---|
1149 |
|
---|
1150 | /**
|
---|
1151 | * Query a symbol by address.
|
---|
1152 | *
|
---|
1153 | * The returned symbol is the one we consider closes to the specified address.
|
---|
1154 | *
|
---|
1155 | * @returns VBox status code. See RTDbgAsSymbolByAddr.
|
---|
1156 | *
|
---|
1157 | * @param pUVM The user mode VM handle.
|
---|
1158 | * @param hDbgAs The address space handle.
|
---|
1159 | * @param pAddress The address to lookup.
|
---|
1160 | * @param fFlags One of the RTDBGSYMADDR_FLAGS_XXX flags.
|
---|
1161 | * @param poffDisp Where to return the distance between the returned
|
---|
1162 | * symbol and pAddress. Optional.
|
---|
1163 | * @param pSymbol Where to return the symbol information. The returned
|
---|
1164 | * symbol name will be prefixed by the module name as
|
---|
1165 | * far as space allows.
|
---|
1166 | * @param phMod Where to return the module handle. Optional.
|
---|
1167 | */
|
---|
1168 | VMMR3DECL(int) DBGFR3AsSymbolByAddr(PUVM pUVM, RTDBGAS hDbgAs, PCDBGFADDRESS pAddress, uint32_t fFlags,
|
---|
1169 | PRTGCINTPTR poffDisp, PRTDBGSYMBOL pSymbol, PRTDBGMOD phMod)
|
---|
1170 | {
|
---|
1171 | /*
|
---|
1172 | * Implement the special address space aliases the lazy way.
|
---|
1173 | */
|
---|
1174 | if (hDbgAs == DBGF_AS_RC_AND_GC_GLOBAL)
|
---|
1175 | {
|
---|
1176 | int rc = DBGFR3AsSymbolByAddr(pUVM, DBGF_AS_RC, pAddress, fFlags, poffDisp, pSymbol, phMod);
|
---|
1177 | if (RT_FAILURE(rc))
|
---|
1178 | rc = DBGFR3AsSymbolByAddr(pUVM, DBGF_AS_GLOBAL, pAddress, fFlags, poffDisp, pSymbol, phMod);
|
---|
1179 | return rc;
|
---|
1180 | }
|
---|
1181 |
|
---|
1182 | /*
|
---|
1183 | * Input validation.
|
---|
1184 | */
|
---|
1185 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
1186 | AssertReturn(DBGFR3AddrIsValid(pUVM, pAddress), VERR_INVALID_PARAMETER);
|
---|
1187 | AssertPtrNullReturn(poffDisp, VERR_INVALID_POINTER);
|
---|
1188 | AssertPtrReturn(pSymbol, VERR_INVALID_POINTER);
|
---|
1189 | AssertPtrNullReturn(phMod, VERR_INVALID_POINTER);
|
---|
1190 | if (poffDisp)
|
---|
1191 | *poffDisp = 0;
|
---|
1192 | if (phMod)
|
---|
1193 | *phMod = NIL_RTDBGMOD;
|
---|
1194 | RTDBGAS hRealAS = DBGFR3AsResolveAndRetain(pUVM, hDbgAs);
|
---|
1195 | if (hRealAS == NIL_RTDBGAS)
|
---|
1196 | return VERR_INVALID_HANDLE;
|
---|
1197 |
|
---|
1198 | /*
|
---|
1199 | * Do the lookup.
|
---|
1200 | */
|
---|
1201 | RTDBGMOD hMod;
|
---|
1202 | int rc = RTDbgAsSymbolByAddr(hRealAS, pAddress->FlatPtr, fFlags, poffDisp, pSymbol, &hMod);
|
---|
1203 | if (RT_SUCCESS(rc))
|
---|
1204 | {
|
---|
1205 | dbgfR3AsSymbolJoinNames(pSymbol, hMod);
|
---|
1206 | if (!phMod)
|
---|
1207 | RTDbgModRelease(hMod);
|
---|
1208 | }
|
---|
1209 |
|
---|
1210 | RTDbgAsRelease(hRealAS);
|
---|
1211 | return rc;
|
---|
1212 | }
|
---|
1213 |
|
---|
1214 |
|
---|
1215 | /**
|
---|
1216 | * Convenience function that combines RTDbgSymbolDup and DBGFR3AsSymbolByAddr.
|
---|
1217 | *
|
---|
1218 | * @returns Pointer to the symbol on success. This must be free using
|
---|
1219 | * RTDbgSymbolFree(). NULL is returned if not found or any error
|
---|
1220 | * occurs.
|
---|
1221 | *
|
---|
1222 | * @param pUVM The user mode VM handle.
|
---|
1223 | * @param hDbgAs See DBGFR3AsSymbolByAddr.
|
---|
1224 | * @param pAddress See DBGFR3AsSymbolByAddr.
|
---|
1225 | * @param fFlags See DBGFR3AsSymbolByAddr.
|
---|
1226 | * @param poffDisp See DBGFR3AsSymbolByAddr.
|
---|
1227 | * @param phMod See DBGFR3AsSymbolByAddr.
|
---|
1228 | */
|
---|
1229 | VMMR3DECL(PRTDBGSYMBOL) DBGFR3AsSymbolByAddrA(PUVM pUVM, RTDBGAS hDbgAs, PCDBGFADDRESS pAddress, uint32_t fFlags,
|
---|
1230 | PRTGCINTPTR poffDisp, PRTDBGMOD phMod)
|
---|
1231 | {
|
---|
1232 | RTDBGSYMBOL SymInfo;
|
---|
1233 | int rc = DBGFR3AsSymbolByAddr(pUVM, hDbgAs, pAddress, fFlags, poffDisp, &SymInfo, phMod);
|
---|
1234 | if (RT_SUCCESS(rc))
|
---|
1235 | return RTDbgSymbolDup(&SymInfo);
|
---|
1236 | return NULL;
|
---|
1237 | }
|
---|
1238 |
|
---|
1239 |
|
---|
1240 | /**
|
---|
1241 | * Query a symbol by name.
|
---|
1242 | *
|
---|
1243 | * The symbol can be prefixed by a module name pattern to scope the search. The
|
---|
1244 | * pattern is a simple string pattern with '*' and '?' as wild chars. See
|
---|
1245 | * RTStrSimplePatternMatch().
|
---|
1246 | *
|
---|
1247 | * @returns VBox status code. See RTDbgAsSymbolByAddr.
|
---|
1248 | *
|
---|
1249 | * @param pUVM The user mode VM handle.
|
---|
1250 | * @param hDbgAs The address space handle.
|
---|
1251 | * @param pszSymbol The symbol to search for, maybe prefixed by a
|
---|
1252 | * module pattern.
|
---|
1253 | * @param pSymbol Where to return the symbol information.
|
---|
1254 | * The returned symbol name will be prefixed by
|
---|
1255 | * the module name as far as space allows.
|
---|
1256 | * @param phMod Where to return the module handle. Optional.
|
---|
1257 | */
|
---|
1258 | VMMR3DECL(int) DBGFR3AsSymbolByName(PUVM pUVM, RTDBGAS hDbgAs, const char *pszSymbol,
|
---|
1259 | PRTDBGSYMBOL pSymbol, PRTDBGMOD phMod)
|
---|
1260 | {
|
---|
1261 | /*
|
---|
1262 | * Implement the special address space aliases the lazy way.
|
---|
1263 | */
|
---|
1264 | if (hDbgAs == DBGF_AS_RC_AND_GC_GLOBAL)
|
---|
1265 | {
|
---|
1266 | int rc = DBGFR3AsSymbolByName(pUVM, DBGF_AS_RC, pszSymbol, pSymbol, phMod);
|
---|
1267 | if (RT_FAILURE(rc))
|
---|
1268 | rc = DBGFR3AsSymbolByName(pUVM, DBGF_AS_GLOBAL, pszSymbol, pSymbol, phMod);
|
---|
1269 | return rc;
|
---|
1270 | }
|
---|
1271 |
|
---|
1272 | /*
|
---|
1273 | * Input validation.
|
---|
1274 | */
|
---|
1275 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
1276 | AssertPtrReturn(pSymbol, VERR_INVALID_POINTER);
|
---|
1277 | AssertPtrNullReturn(phMod, VERR_INVALID_POINTER);
|
---|
1278 | if (phMod)
|
---|
1279 | *phMod = NIL_RTDBGMOD;
|
---|
1280 | RTDBGAS hRealAS = DBGFR3AsResolveAndRetain(pUVM, hDbgAs);
|
---|
1281 | if (hRealAS == NIL_RTDBGAS)
|
---|
1282 | return VERR_INVALID_HANDLE;
|
---|
1283 |
|
---|
1284 |
|
---|
1285 | /*
|
---|
1286 | * Do the lookup.
|
---|
1287 | */
|
---|
1288 | RTDBGMOD hMod;
|
---|
1289 | int rc = RTDbgAsSymbolByName(hRealAS, pszSymbol, pSymbol, &hMod);
|
---|
1290 | if (RT_SUCCESS(rc))
|
---|
1291 | {
|
---|
1292 | dbgfR3AsSymbolJoinNames(pSymbol, hMod);
|
---|
1293 | if (!phMod)
|
---|
1294 | RTDbgModRelease(hMod);
|
---|
1295 | }
|
---|
1296 |
|
---|
1297 | RTDbgAsRelease(hRealAS);
|
---|
1298 | return rc;
|
---|
1299 | }
|
---|
1300 |
|
---|
1301 |
|
---|
1302 | VMMR3DECL(int) DBGFR3AsLineByAddr(PUVM pUVM, RTDBGAS hDbgAs, PCDBGFADDRESS pAddress,
|
---|
1303 | PRTGCINTPTR poffDisp, PRTDBGLINE pLine, PRTDBGMOD phMod)
|
---|
1304 | {
|
---|
1305 | /*
|
---|
1306 | * Implement the special address space aliases the lazy way.
|
---|
1307 | */
|
---|
1308 | if (hDbgAs == DBGF_AS_RC_AND_GC_GLOBAL)
|
---|
1309 | {
|
---|
1310 | int rc = DBGFR3AsLineByAddr(pUVM, DBGF_AS_RC, pAddress, poffDisp, pLine, phMod);
|
---|
1311 | if (RT_FAILURE(rc))
|
---|
1312 | rc = DBGFR3AsLineByAddr(pUVM, DBGF_AS_GLOBAL, pAddress, poffDisp, pLine, phMod);
|
---|
1313 | return rc;
|
---|
1314 | }
|
---|
1315 |
|
---|
1316 | /*
|
---|
1317 | * Input validation.
|
---|
1318 | */
|
---|
1319 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
1320 | AssertReturn(DBGFR3AddrIsValid(pUVM, pAddress), VERR_INVALID_PARAMETER);
|
---|
1321 | AssertPtrNullReturn(poffDisp, VERR_INVALID_POINTER);
|
---|
1322 | AssertPtrReturn(pLine, VERR_INVALID_POINTER);
|
---|
1323 | AssertPtrNullReturn(phMod, VERR_INVALID_POINTER);
|
---|
1324 | if (poffDisp)
|
---|
1325 | *poffDisp = 0;
|
---|
1326 | if (phMod)
|
---|
1327 | *phMod = NIL_RTDBGMOD;
|
---|
1328 | RTDBGAS hRealAS = DBGFR3AsResolveAndRetain(pUVM, hDbgAs);
|
---|
1329 | if (hRealAS == NIL_RTDBGAS)
|
---|
1330 | return VERR_INVALID_HANDLE;
|
---|
1331 |
|
---|
1332 | /*
|
---|
1333 | * Do the lookup.
|
---|
1334 | */
|
---|
1335 | int rc = RTDbgAsLineByAddr(hRealAS, pAddress->FlatPtr, poffDisp, pLine, phMod);
|
---|
1336 |
|
---|
1337 | RTDbgAsRelease(hRealAS);
|
---|
1338 | return rc;
|
---|
1339 | }
|
---|
1340 |
|
---|
1341 |
|
---|
1342 | VMMR3DECL(PRTDBGLINE) DBGFR3AsLineByAddrA(PUVM pUVM, RTDBGAS hDbgAs, PCDBGFADDRESS pAddress,
|
---|
1343 | PRTGCINTPTR poffDisp, PRTDBGMOD phMod)
|
---|
1344 | {
|
---|
1345 | RTDBGLINE Line;
|
---|
1346 | int rc = DBGFR3AsLineByAddr(pUVM, hDbgAs, pAddress, poffDisp, &Line, phMod);
|
---|
1347 | if (RT_SUCCESS(rc))
|
---|
1348 | return RTDbgLineDup(&Line);
|
---|
1349 | return NULL;
|
---|
1350 | }
|
---|
1351 |
|
---|