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comparison src/share/vm/utilities/elfSymbolTable.hpp @ 2022:2d4762ec74af

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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
date Sat, 11 Dec 2010 13:20:56 -0500
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children f08d439fab8c
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1972:f95d63e2154a 2022:2d4762ec74af
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_SYMBOL_TABLE_HPP
26 #define __ELF_SYMBOL_TABLE_HPP
27
28 #ifndef _WINDOWS
29
30
31 #include "memory/allocation.hpp"
32 #include "utilities/decoder.hpp"
33 #include "utilities/elfFile.hpp"
34
35 /*
36 * symbol table object represents a symbol section in an elf file.
37 * Whenever possible, it will load all symbols from the corresponding section
38 * of the elf file into memory. Otherwise, it will walk the section in file
39 * to look up the symbol that nearest the given address.
40 */
41 class ElfSymbolTable: public CHeapObj {
42 friend class ElfFile;
43 public:
44 ElfSymbolTable(FILE* file, Elf_Shdr shdr);
45 ~ElfSymbolTable();
46
47 // search the symbol that is nearest to the specified address.
48 Decoder::decoder_status lookup(address addr, int* stringtableIndex, int* posIndex, int* offset);
49
50 Decoder::decoder_status get_status() { return m_status; };
51
52 protected:
53 ElfSymbolTable* m_next;
54
55 // holds a complete symbol table section if
56 // can allocate enough memory
57 Elf_Sym* m_symbols;
58
59 // file contains string table
60 FILE* m_file;
61
62 // section header
63 Elf_Shdr m_shdr;
64
65 Decoder::decoder_status m_status;
66 };
67
68 #endif // _WINDOWS
69
70 #endif // __ELF_SYMBOL_TABLE_HPP
71
72
73