Mercurial > hg > truffle
comparison src/share/vm/utilities/elfStringTable.hpp @ 2022:2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
Summary: Implemented in-process C native stack frame decoding when symbols are available.
Reviewed-by: coleenp, never
author | zgu |
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date | Sat, 11 Dec 2010 13:20:56 -0500 |
parents | |
children | f08d439fab8c |
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1972:f95d63e2154a | 2022:2d4762ec74af |
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1 /* | |
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #ifndef __ELF_STRING_TABLE_HPP | |
26 #define __ELF_STRING_TABLE_HPP | |
27 | |
28 #ifndef _WINDOWS | |
29 | |
30 #include "memory/allocation.hpp" | |
31 #include "utilities/decoder.hpp" | |
32 #include "utilities/elfFile.hpp" | |
33 | |
34 | |
35 // The string table represents a string table section in an elf file. | |
36 // Whenever there is enough memory, it will load whole string table as | |
37 // one blob. Otherwise, it will load string from file when requested. | |
38 | |
39 #define MAX_SYMBOL_LEN 256 | |
40 | |
41 class ElfStringTable: CHeapObj { | |
42 friend class ElfFile; | |
43 public: | |
44 ElfStringTable(FILE* file, Elf_Shdr shdr, int index); | |
45 ~ElfStringTable(); | |
46 | |
47 // section index | |
48 int index() { return m_index; }; | |
49 | |
50 // get string at specified offset | |
51 const char* string_at(int offset); | |
52 | |
53 // get status code | |
54 Decoder::decoder_status get_status() { return m_status; }; | |
55 | |
56 protected: | |
57 ElfStringTable* m_next; | |
58 | |
59 // section index | |
60 int m_index; | |
61 | |
62 // holds complete string table if can | |
63 // allocate enough memory | |
64 const char* m_table; | |
65 | |
66 // file contains string table | |
67 FILE* m_file; | |
68 | |
69 // section header | |
70 Elf_Shdr m_shdr; | |
71 | |
72 // buffer for reading individual string | |
73 char m_symbol[MAX_SYMBOL_LEN]; | |
74 | |
75 // error code | |
76 Decoder::decoder_status m_status; | |
77 }; | |
78 | |
79 #endif // _WINDOWS | |
80 | |
81 #endif // __ELF_STRING_TABLE_HPP | |
82 |