Mercurial > hg > truffle

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

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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 d28def44457d
children f08d439fab8c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2022
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
1 /*
2426
1d1603768966 7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
trims
parents: 2196
diff changeset
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
2022
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
4 *
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
7 * published by the Free Software Foundation.
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
8 *
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
13 * accompanied this code).
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
14 *
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
18 *
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
21 * questions.
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
22 *
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
23 */
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
24
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
25 #include "precompiled.hpp"
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
26
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
27 #ifndef _WINDOWS
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
28
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
29 #include "memory/allocation.inline.hpp"
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
30 #include "utilities/elfSymbolTable.hpp"
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
31
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
32 ElfSymbolTable::ElfSymbolTable(FILE* file, Elf_Shdr shdr) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
33 assert(file, "null file handle");
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
34 m_symbols = NULL;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
35 m_next = NULL;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
36 m_file = file;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
37 m_status = Decoder::no_error;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
38
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
39 // try to load the string table
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
40 long cur_offset = ftell(file);
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
41 if (cur_offset != -1) {
2196
d28def44457d 7017009: Secondary out of c-heap memory error reporting out of memory
coleenp
parents: 2022
diff changeset
42 // call malloc so we can back up if memory allocation fails.
d28def44457d 7017009: Secondary out of c-heap memory error reporting out of memory
coleenp
parents: 2022
diff changeset
43 m_symbols = (Elf_Sym*)os::malloc(shdr.sh_size);
2022
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
44 if (m_symbols) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
45 if (fseek(file, shdr.sh_offset, SEEK_SET) ||
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
46 fread((void*)m_symbols, shdr.sh_size, 1, file) != 1 ||
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
47 fseek(file, cur_offset, SEEK_SET)) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
48 m_status = Decoder::file_invalid;
2196
d28def44457d 7017009: Secondary out of c-heap memory error reporting out of memory
coleenp
parents: 2022
diff changeset
49 os::free(m_symbols);
2022
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
50 m_symbols = NULL;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
51 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
52 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
53 if (m_status == Decoder::no_error) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
54 memcpy(&m_shdr, &shdr, sizeof(Elf_Shdr));
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
55 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
56 } else {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
57 m_status = Decoder::file_invalid;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
58 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
59 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
60
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
61 ElfSymbolTable::~ElfSymbolTable() {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
62 if (m_symbols != NULL) {
2196
d28def44457d 7017009: Secondary out of c-heap memory error reporting out of memory
coleenp
parents: 2022
diff changeset
63 os::free(m_symbols);
2022
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
64 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
65
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
66 if (m_next != NULL) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
67 delete m_next;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
68 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
69 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
70
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
71 Decoder::decoder_status ElfSymbolTable::lookup(address addr, int* stringtableIndex, int* posIndex, int* offset) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
72 assert(stringtableIndex, "null string table index pointer");
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
73 assert(posIndex, "null string table offset pointer");
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
74 assert(offset, "null offset pointer");
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
75
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
76 if (m_status != Decoder::no_error) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
77 return m_status;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
78 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
79
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
80 address pc = 0;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
81 size_t sym_size = sizeof(Elf_Sym);
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
82 assert((m_shdr.sh_size % sym_size) == 0, "check size");
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
83 int count = m_shdr.sh_size / sym_size;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
84 if (m_symbols != NULL) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
85 for (int index = 0; index < count; index ++) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
86 if (STT_FUNC == ELF_ST_TYPE(m_symbols[index].st_info)) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
87 address sym_addr = (address)m_symbols[index].st_value;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
88 if (sym_addr < addr && (addr - sym_addr) < *offset) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
89 pc = (address)m_symbols[index].st_value;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
90 *offset = (int)(addr - pc);
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
91 *posIndex = m_symbols[index].st_name;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
92 *stringtableIndex = m_shdr.sh_link;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
93 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
94 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
95 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
96 } else {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
97 long cur_pos;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
98 if ((cur_pos = ftell(m_file)) == -1 ||
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
99 fseek(m_file, m_shdr.sh_offset, SEEK_SET)) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
100 m_status = Decoder::file_invalid;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
101 return m_status;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
102 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
103
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
104 Elf_Sym sym;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
105 for (int index = 0; index < count; index ++) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
106 if (fread(&sym, sym_size, 1, m_file) == 1) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
107 if (STT_FUNC == ELF_ST_TYPE(sym.st_info)) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
108 address sym_addr = (address)sym.st_value;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
109 if (sym_addr < addr && (addr - sym_addr) < *offset) {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
110 pc = (address)sym.st_value;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
111 *offset = (int)(addr - pc);
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
112 *posIndex = sym.st_name;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
113 *stringtableIndex = m_shdr.sh_link;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
114 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
115 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
116 } else {
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
117 m_status = Decoder::file_invalid;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
118 return m_status;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
119 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
120 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
121 fseek(m_file, cur_pos, SEEK_SET);
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
122 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
123 return m_status;
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
124 }
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
125
2d4762ec74af 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
diff changeset
126 #endif // _WINDOWS