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annotate src/share/vm/utilities/decoder.cpp @ 2426:1d1603768966

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7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass Summary: Update the copyright to be 2010 on all changed files in OpenJDK Reviewed-by: ohair
author trims
date Tue, 05 Apr 2011 14:12:31 -0700
parents 2d4762ec74af
children f08d439fab8c
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2022
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1 /*
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "prims/jvm.h"
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27 #include "utilities/decoder.hpp"
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28
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29 Decoder::decoder_status Decoder::_decoder_status = Decoder::no_error;
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30 bool Decoder::_initialized = false;
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31
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32 #ifndef _WINDOWS
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33
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34 // Implementation of common functionalities among Solaris and Linux
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35 #include "utilities/elfFile.hpp"
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36
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37 ElfFile* Decoder::_opened_elf_files = NULL;
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38
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39 bool Decoder::can_decode_C_frame_in_vm() {
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40 return true;
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41 }
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42
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43 void Decoder::initialize() {
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44 _initialized = true;
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45 }
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46
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47 void Decoder::uninitialize() {
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48 if (_opened_elf_files != NULL) {
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49 delete _opened_elf_files;
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50 _opened_elf_files = NULL;
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51 }
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52 _initialized = false;
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53 }
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54
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55 Decoder::decoder_status Decoder::decode(address addr, const char* filepath, char *buf, int buflen, int *offset) {
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56 if (_decoder_status != no_error) {
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57 return _decoder_status;
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58 }
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59
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60 ElfFile* file = get_elf_file(filepath);
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61 if (_decoder_status != no_error) {
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62 return _decoder_status;
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63 }
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64
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65 const char* symbol = file->decode(addr, offset);
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66 if (file->get_status() == out_of_memory) {
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67 _decoder_status = out_of_memory;
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68 return _decoder_status;
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69 } else if (symbol != NULL) {
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70 if (!demangle(symbol, buf, buflen)) {
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71 jio_snprintf(buf, buflen, "%s", symbol);
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72 }
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73 return no_error;
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74 } else {
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75 return symbol_not_found;
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76 }
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77 }
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78
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79 ElfFile* Decoder::get_elf_file(const char* filepath) {
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80 if (_decoder_status != no_error) {
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81 return NULL;
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82 }
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83 ElfFile* file = _opened_elf_files;
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84 while (file != NULL) {
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85 if (file->same_elf_file(filepath)) {
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86 return file;
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87 }
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88 file = file->m_next;
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89 }
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90
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91 file = new ElfFile(filepath);
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92 if (file == NULL) {
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93 _decoder_status = out_of_memory;
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94 }
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95 if (_opened_elf_files != NULL) {
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96 file->m_next = _opened_elf_files;
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97 }
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98
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99 _opened_elf_files = file;
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100 return file;
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101 }
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102
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103 #endif
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104