1/* 2 * Copyright (c) 2011, 2015, 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#include "precompiled.hpp" 26 27#if !defined(_WINDOWS) && !defined(__APPLE__) 28#include "decoder_elf.hpp" 29 30ElfDecoder::~ElfDecoder() { 31 if (_opened_elf_files != NULL) { 32 delete _opened_elf_files; 33 _opened_elf_files = NULL; 34 } 35} 36 37bool ElfDecoder::decode(address addr, char *buf, int buflen, int* offset, const char* filepath, bool demangle_name) { 38 assert(filepath, "null file path"); 39 assert(buf != NULL && buflen > 0, "Invalid buffer"); 40 if (has_error()) return false; 41 ElfFile* file = get_elf_file(filepath); 42 if (file == NULL) { 43 return false; 44 } 45 46 if (!file->decode(addr, buf, buflen, offset)) { 47 return false; 48 } 49 if (demangle_name && (buf[0] != '\0')) { 50 demangle(buf, buf, buflen); 51 } 52 return true; 53} 54 55ElfFile* ElfDecoder::get_elf_file(const char* filepath) { 56 ElfFile* file; 57 58 file = _opened_elf_files; 59 while (file != NULL) { 60 if (file->same_elf_file(filepath)) { 61 return file; 62 } 63 file = file->next(); 64 } 65 66 file = new (std::nothrow)ElfFile(filepath); 67 if (file != NULL) { 68 if (_opened_elf_files != NULL) { 69 file->set_next(_opened_elf_files); 70 } 71 _opened_elf_files = file; 72 } 73 74 return file; 75} 76#endif // !_WINDOWS && !__APPLE__ 77