src/share/vm/utilities/decoder_elf.cpp

Tue, 25 Feb 2014 15:11:18 -0800

author
kvn
date
Tue, 25 Feb 2014 15:11:18 -0800
changeset 6507
752ba2e5f6d0
parent 6491
e7cbc95179c4
child 6876
710a3c8b516e
permissions
-rw-r--r--

Merge

zgu@3430 1 /*
mikael@4153 2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
zgu@3430 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
zgu@3430 4 *
zgu@3430 5 * This code is free software; you can redistribute it and/or modify it
zgu@3430 6 * under the terms of the GNU General Public License version 2 only, as
zgu@3430 7 * published by the Free Software Foundation.
zgu@3430 8 *
zgu@3430 9 * This code is distributed in the hope that it will be useful, but WITHOUT
zgu@3430 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
zgu@3430 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
zgu@3430 12 * version 2 for more details (a copy is included in the LICENSE file that
zgu@3430 13 * accompanied this code).
zgu@3430 14 *
zgu@3430 15 * You should have received a copy of the GNU General Public License version
zgu@3430 16 * 2 along with this work; if not, write to the Free Software Foundation,
zgu@3430 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
zgu@3430 18 *
zgu@3430 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
zgu@3430 20 * or visit www.oracle.com if you need additional information or have any
zgu@3430 21 * questions.
zgu@3430 22 *
zgu@3430 23 */
zgu@3430 24
zgu@3430 25 #include "precompiled.hpp"
zgu@3430 26
zgu@3430 27 #if !defined(_WINDOWS) && !defined(__APPLE__)
zgu@3430 28 #include "decoder_elf.hpp"
zgu@3430 29
zgu@3430 30 ElfDecoder::~ElfDecoder() {
zgu@3430 31 if (_opened_elf_files != NULL) {
zgu@3430 32 delete _opened_elf_files;
zgu@3430 33 _opened_elf_files = NULL;
zgu@3430 34 }
zgu@3430 35 }
zgu@3430 36
zgu@3430 37 bool ElfDecoder::decode(address addr, char *buf, int buflen, int* offset, const char* filepath) {
zgu@3430 38 assert(filepath, "null file path");
zgu@3430 39 assert(buf != NULL && buflen > 0, "Invalid buffer");
zgu@3430 40 if (has_error()) return false;
zgu@3430 41 ElfFile* file = get_elf_file(filepath);
zgu@3430 42 if (file == NULL) {
zgu@3430 43 return false;
zgu@3430 44 }
zgu@3430 45
zgu@3430 46 if (!file->decode(addr, buf, buflen, offset)) {
zgu@3430 47 return false;
zgu@3430 48 }
zgu@3430 49 if (buf[0] != '\0') {
zgu@3430 50 demangle(buf, buf, buflen);
zgu@3430 51 }
zgu@3430 52 return true;
zgu@3430 53 }
zgu@3430 54
zgu@3430 55 ElfFile* ElfDecoder::get_elf_file(const char* filepath) {
zgu@3430 56 ElfFile* file;
zgu@3430 57
zgu@3430 58 file = _opened_elf_files;
zgu@3430 59 while (file != NULL) {
zgu@3430 60 if (file->same_elf_file(filepath)) {
zgu@3430 61 return file;
zgu@3430 62 }
zgu@3430 63 file = file->next();
zgu@3430 64 }
zgu@3430 65
zgu@3430 66 file = new (std::nothrow)ElfFile(filepath);
zgu@3430 67 if (file != NULL) {
zgu@3430 68 if (_opened_elf_files != NULL) {
zgu@3430 69 file->set_next(_opened_elf_files);
zgu@3430 70 }
zgu@3430 71 _opened_elf_files = file;
zgu@3430 72 }
zgu@3430 73
zgu@3430 74 return file;
zgu@3430 75 }
simonis@6491 76 #endif // !_WINDOWS && !__APPLE__

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