RTLdrFlt.cpp@ 38573

Last change on this file since 38573 was 38573, checked in by vboxsync, 14 years ago
iprt: Read dwarf line numbers.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 12.2 KB

Line
1	/* $Id: RTLdrFlt.cpp 38573 2011-08-30 14:36:20Z vboxsync $ */
2	/** @file
3	* IPRT - Utility for translating addresses into symbols+offset.
4	*/
5
6	/*
7	* Copyright (C) 2006-2011 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*/
26
27
28	/*******************************************************************************
29	* Header Files *
30	*******************************************************************************/
31	#include <iprt/mem.h>
32	#include <iprt/assert.h>
33	#include <iprt/ctype.h>
34	#include <iprt/dbg.h>
35	#include <iprt/err.h>
36	#include <iprt/getopt.h>
37	#include <iprt/initterm.h>
38	#include <iprt/message.h>
39	#include <iprt/path.h>
40	#include <iprt/stream.h>
41	#include <iprt/string.h>
42
43
44
45	/**
46	* Tries to parse out an address at the head of the string.
47	*
48	* @returns true if found address, false if not.
49	* @param psz Where to start parsing.
50	* @param pcchAddress Where to store the address length.
51	* @param pu64Address Where to store the address value.
52	*/
53	static bool TryParseAddress(const char psz, size_t pcchAddress, uint64_t *pu64Address)
54	{
55	const char *pszStart = psz;
56
57	/*
58	* Hex prefix?
59	*/
60	if (psz[0] == '0' && (psz[1] == 'x' \|\| psz[1] == 'X'))
61	psz += 2;
62
63	/*
64	* How many hex digits? We want at least 4 and at most 16.
65	*/
66	size_t off = 0;
67	while (RT_C_IS_XDIGIT(psz[off]))
68	off++;
69	if (off < 4 \|\| off > 16)
70	return false;
71
72	/*
73	* Check for separator (xxxxxxxx'yyyyyyyy).
74	*/
75	bool fHave64bitSep = off <= 8
76	&& psz[off] == '\''
77	&& RT_C_IS_XDIGIT(psz[off + 1])
78	&& RT_C_IS_XDIGIT(psz[off + 2])
79	&& RT_C_IS_XDIGIT(psz[off + 3])
80	&& RT_C_IS_XDIGIT(psz[off + 4])
81	&& RT_C_IS_XDIGIT(psz[off + 5])
82	&& RT_C_IS_XDIGIT(psz[off + 6])
83	&& RT_C_IS_XDIGIT(psz[off + 7])
84	&& RT_C_IS_XDIGIT(psz[off + 8])
85	&& !RT_C_IS_XDIGIT(psz[off + 9]);
86	if (fHave64bitSep)
87	{
88	uint32_t u32High;
89	int rc = RTStrToUInt32Ex(psz, NULL, 16, &u32High);
90	if (rc != VWRN_TRAILING_CHARS)
91	return false;
92
93	uint32_t u32Low;
94	rc = RTStrToUInt32Ex(&psz[off + 1], NULL, 16, &u32Low);
95	if ( rc != VINF_SUCCESS
96	&& rc != VWRN_TRAILING_SPACES
97	&& rc != VWRN_TRAILING_CHARS)
98	return false;
99
100	*pu64Address = RT_MAKE_U64(u32Low, u32High);
101	off += 1 + 8;
102	}
103	else
104	{
105	int rc = RTStrToUInt64Ex(psz, NULL, 16, pu64Address);
106	if ( rc != VINF_SUCCESS
107	&& rc != VWRN_TRAILING_SPACES
108	&& rc != VWRN_TRAILING_CHARS)
109	return false;
110	}
111
112	*pcchAddress = psz + off - pszStart;
113	return true;
114	}
115
116
117	int main(int argc, char **argv)
118	{
119	int rc = RTR3Init();
120	if (RT_FAILURE(rc))
121	return RTMsgInitFailure(rc);
122
123	/*
124	* Create an empty address space that we can load modules and stuff into
125	* as we parse the parameters.
126	*/
127	RTDBGAS hDbgAs;
128	rc = RTDbgAsCreate(&hDbgAs, 0, RTUINTPTR_MAX, "");
129	if (RT_FAILURE(rc))
130	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTDBgAsCreate -> %Rrc", rc);
131
132
133	/*
134	* Parse arguments.
135	*/
136	static const RTGETOPTDEF s_aOptions[] =
137	{
138	{ "--input", 'i', RTGETOPT_REQ_STRING },
139	{ "--verbose", 'v', RTGETOPT_REQ_NOTHING },
140	};
141
142	PRTSTREAM pInput = g_pStdIn;
143	PRTSTREAM pOutput = g_pStdOut;
144	bool fVerbose = false;
145
146	RTGETOPTUNION ValueUnion;
147	RTGETOPTSTATE GetState;
148	RTGetOptInit(&GetState, argc, argv, s_aOptions, RT_ELEMENTS(s_aOptions), 1, 0);
149	while ((rc = RTGetOpt(&GetState, &ValueUnion)))
150	{
151	switch (rc)
152	{
153	case 'i':
154	rc = RTStrmOpen(ValueUnion.psz, "r", &pInput);
155	if (RT_FAILURE(rc))
156	return RTMsgErrorExit(RTEXITCODE_FAILURE, "Failed to open '%s' for reading: %Rrc", ValueUnion.psz, rc);
157	break;
158
159	case 'v':
160	fVerbose = true;
161	break;
162
163	case 'h':
164	RTPrintf("Usage: %s [options] <module> <address> [<module> <address> [..]]\n"
165	"\n"
166	"Options:\n"
167	" -i,--input=file\n"
168	" Specify a input file instead of standard input.\n"
169	" -v, --verbose\n"
170	" Display the address space before doing the filtering.\n"
171	" -h, -?, --help\n"
172	" Display this help text and exit successfully.\n"
173	" -V, --version\n"
174	" Display the revision and exit successfully.\n"
175	, RTPathFilename(argv[0]));
176	return RTEXITCODE_SUCCESS;
177
178	case 'V':
179	RTPrintf("$Revision: 38573 $\n");
180	return RTEXITCODE_SUCCESS;
181
182	case VINF_GETOPT_NOT_OPTION:
183	{
184	/* <module> <address> */
185	const char *pszModule = ValueUnion.psz;
186
187	rc = RTGetOptFetchValue(&GetState, &ValueUnion, RTGETOPT_REQ_UINT64 \| RTGETOPT_FLAG_HEX);
188	if (RT_FAILURE(rc))
189	return RTGetOptPrintError(rc, &ValueUnion);
190	uint64_t u64Address = ValueUnion.u64;
191
192	RTDBGMOD hMod;
193	rc = RTDbgModCreateFromImage(&hMod, pszModule, NULL, 0 /fFlags/);
194	if (RT_FAILURE(rc))
195	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTDbgModCreateFromImage(,%s,,) -> %Rrc", pszModule, rc);
196
197	rc = RTDbgAsModuleLink(hDbgAs, hMod, u64Address, 0 /* fFlags */);
198	if (RT_FAILURE(rc))
199	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTDbgAsModuleLink(,%s,%llx,) -> %Rrc", pszModule, u64Address, rc);
200	break;
201	}
202
203	default:
204	return RTGetOptPrintError(rc, &ValueUnion);
205	}
206	}
207
208	/*
209	* Display the address space.
210	*/
211	if (fVerbose)
212	{
213	RTPrintf("* Address Space Dump *\n");
214	uint32_t cModules = RTDbgAsModuleCount(hDbgAs);
215	for (uint32_t iModule = 0; iModule < cModules; iModule++)
216	{
217	RTDBGMOD hDbgMod = RTDbgAsModuleByIndex(hDbgAs, iModule);
218	RTPrintf("Module #%u: %s\n", iModule, RTDbgModName(hDbgMod));
219
220	RTDBGASMAPINFO aMappings[128];
221	uint32_t cMappings = RT_ELEMENTS(aMappings);
222	rc = RTDbgAsModuleQueryMapByIndex(hDbgAs, iModule, &aMappings[0], &cMappings, 0 /fFlags/);
223	if (RT_SUCCESS(rc))
224	{
225	for (uint32_t iMapping = 0; iMapping < cMappings; iMapping++)
226	{
227	if (aMappings[iMapping].iSeg == NIL_RTDBGSEGIDX)
228	RTPrintf(" mapping #%u: %RTptr-%RTptr\n",
229	iMapping,
230	aMappings[iMapping].Address,
231	aMappings[iMapping].Address + RTDbgModImageSize(hDbgMod) - 1);
232	else
233	{
234	RTDBGSEGMENT SegInfo;
235	rc = RTDbgModSegmentByIndex(hDbgMod, aMappings[iMapping].iSeg, &SegInfo);
236	if (RT_SUCCESS(rc))
237	RTPrintf(" mapping #%u: %RTptr-%RTptr (segment #%u - '%s')",
238	iMapping,
239	aMappings[iMapping].Address,
240	aMappings[iMapping].Address + SegInfo.cb,
241	SegInfo.iSeg, SegInfo.szName);
242	else
243	RTPrintf(" mapping #%u: %RTptr-???????? (segment #%u)", iMapping, aMappings[iMapping].Address);
244	}
245	}
246	}
247	else
248	RTMsgError("RTDbgAsModuleQueryMapByIndex failed: %Rrc", rc);
249	RTDbgModRelease(hDbgMod);
250	}
251	RTPrintf("* End of Address Space Dump *\n");
252	}
253
254	/*
255	* Read text from standard input and see if there is anything we can translate.
256	*/
257	for (;;)
258	{
259	/* Get a line. */
260	char szLine[_64K];
261	rc = RTStrmGetLine(pInput, szLine, sizeof(szLine));
262	if (rc == VERR_EOF)
263	break;
264	if (RT_FAILURE(rc))
265	return RTMsgErrorExit(RTEXITCODE_FAILURE, "RTStrmGetLine() -> %Rrc\n", rc);
266
267	/*
268	* Search the line for potential addresses and replace them with
269	* symbols+offset.
270	*/
271	const char *pszStart = szLine;
272	const char *psz = szLine;
273	char ch;
274	while ((ch = *psz) != '\0')
275	{
276	size_t cchAddress;
277	uint64_t u64Address;
278
279	if ( ( ch == '0'
280	&& (psz[1] == 'x' \|\| psz[1] == 'X')
281	&& TryParseAddress(psz, &cchAddress, &u64Address))
282	\|\| ( RT_C_IS_XDIGIT(ch)
283	&& TryParseAddress(psz, &cchAddress, &u64Address))
284	)
285	{
286	/* Print. */
287	psz += cchAddress;
288	if (pszStart != psz)
289	RTStrmWrite(pOutput, pszStart, psz - pszStart);
290	pszStart = psz;
291
292	/* Try get the module. */
293	RTUINTPTR uAddr;
294	RTDBGSEGIDX iSeg;
295	RTDBGMOD hDbgMod;
296	rc = RTDbgAsModuleByAddr(hDbgAs, u64Address, &hDbgMod, &uAddr, &iSeg);
297	if (RT_SUCCESS(rc))
298	{
299	if (iSeg != UINT32_MAX)
300	RTStrmPrintf(pOutput, "=[%s:%u", RTDbgModName(hDbgMod), iSeg);
301	else
302	RTStrmPrintf(pOutput, "=[%s", RTDbgModName(hDbgMod), iSeg);
303
304	/*
305	* Do we have symbols?
306	*/
307	RTDBGSYMBOL Symbol;
308	RTINTPTR offSym;
309	rc = RTDbgAsSymbolByAddr(hDbgAs, u64Address, &offSym, &Symbol, NULL);
310	if (RT_SUCCESS(rc))
311	{
312	if (!offSym)
313	RTStrmPrintf(pOutput, "!%s", Symbol.szName);
314	else if (offSym > 0)
315	RTStrmPrintf(pOutput, "!%s+%#llx", Symbol.szName, offSym);
316	else
317	RTStrmPrintf(pOutput, "!%s-%#llx", Symbol.szName, -offSym);
318	}
319	else
320	RTStrmPrintf(pOutput, "+%#llx", u64Address - uAddr);
321
322	/*
323	* Do we have line numbers?
324	*/
325	RTDBGLINE Line;
326	RTINTPTR offLine;
327	rc = RTDbgAsLineByAddr(hDbgAs, u64Address, &offLine, &Line);
328	if (RT_SUCCESS(rc))
329	RTStrmPrintf(pOutput, " %Rbn(%u)", Line.szFilename, Line.uLineNo);
330
331	RTStrmPrintf(pOutput, "]");
332	RTDbgModRelease(hDbgMod);
333	}
334	}
335	else
336	psz++;
337	}
338
339	if (pszStart != psz)
340	RTStrmWrite(pOutput, pszStart, psz - pszStart);
341	RTStrmPutCh(pOutput, '\n');
342
343	}
344
345	return RTEXITCODE_SUCCESS;
346	}
347

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Runtime/tools/RTLdrFlt.cpp@ 38573

Download in other formats: