zgu@2364: /*
zgu@2364:  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
zgu@2364:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
zgu@2364:  *
zgu@2364:  * This code is free software; you can redistribute it and/or modify it
zgu@2364:  * under the terms of the GNU General Public License version 2 only, as
zgu@2364:  * published by the Free Software Foundation.
zgu@2364:  *
zgu@2364:  * This code is distributed in the hope that it will be useful, but WITHOUT
zgu@2364:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
zgu@2364:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
zgu@2364:  * version 2 for more details (a copy is included in the LICENSE file that
zgu@2364:  * accompanied this code).
zgu@2364:  *
zgu@2364:  * You should have received a copy of the GNU General Public License version
zgu@2364:  * 2 along with this work; if not, write to the Free Software Foundation,
zgu@2364:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
zgu@2364:  *
zgu@2364:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
zgu@2364:  * or visit www.oracle.com if you need additional information or have any
zgu@2364:  * questions.
zgu@2364:  *
zgu@2364:  */
zgu@2364: 
zgu@2364: #include "precompiled.hpp"
zgu@2364: #include "prims/jvm.h"
zgu@2364: #include "utilities/decoder.hpp"
zgu@2364: 
zgu@2364: Decoder::decoder_status  Decoder::_decoder_status = Decoder::no_error;
zgu@2364: bool                     Decoder::_initialized = false;
zgu@2364: 
zgu@2364: #ifndef _WINDOWS
zgu@2364: 
zgu@2364: // Implementation of common functionalities among Solaris and Linux
zgu@2364: #include "utilities/elfFile.hpp"
zgu@2364: 
zgu@2364: ElfFile* Decoder::_opened_elf_files = NULL;
zgu@2364: 
zgu@2364: bool Decoder::can_decode_C_frame_in_vm() {
zgu@2364:   return true;
zgu@2364: }
zgu@2364: 
zgu@2364: void Decoder::initialize() {
zgu@2364:   _initialized = true;
zgu@2364: }
zgu@2364: 
zgu@2364: void Decoder::uninitialize() {
zgu@2364:   if (_opened_elf_files != NULL) {
zgu@2364:     delete _opened_elf_files;
zgu@2364:     _opened_elf_files = NULL;
zgu@2364:   }
zgu@2364:   _initialized = false;
zgu@2364: }
zgu@2364: 
zgu@2364: Decoder::decoder_status Decoder::decode(address addr, const char* filepath, char *buf, int buflen, int *offset) {
zgu@2364:   if (_decoder_status != no_error) {
zgu@2364:     return _decoder_status;
zgu@2364:   }
zgu@2364: 
zgu@2364:   ElfFile* file = get_elf_file(filepath);
zgu@2364:   if (_decoder_status != no_error) {
zgu@2364:     return _decoder_status;
zgu@2364:   }
zgu@2364: 
zgu@2364:   const char* symbol = file->decode(addr, offset);
zgu@2364:   if (file->get_status() == out_of_memory) {
zgu@2364:     _decoder_status = out_of_memory;
zgu@2364:     return _decoder_status;
zgu@2364:   } else if (symbol != NULL) {
zgu@2364:     if (!demangle(symbol, buf, buflen)) {
zgu@2364:       jio_snprintf(buf, buflen, "%s", symbol);
zgu@2364:     }
zgu@2364:     return no_error;
zgu@2364:   } else {
zgu@2364:     return symbol_not_found;
zgu@2364:   }
zgu@2364: }
zgu@2364: 
zgu@2364: ElfFile* Decoder::get_elf_file(const char* filepath) {
zgu@2364:   if (_decoder_status != no_error) {
zgu@2364:     return NULL;
zgu@2364:   }
zgu@2364:   ElfFile* file = _opened_elf_files;
zgu@2364:   while (file != NULL) {
zgu@2364:     if (file->same_elf_file(filepath)) {
zgu@2364:       return file;
zgu@2364:     }
zgu@2364:     file = file->m_next;
zgu@2364:   }
zgu@2364: 
zgu@2364:   file = new ElfFile(filepath);
zgu@2364:   if (file == NULL) {
zgu@2364:     _decoder_status = out_of_memory;
zgu@2364:   }
zgu@2364:   if (_opened_elf_files != NULL) {
zgu@2364:     file->m_next = _opened_elf_files;
zgu@2364:   }
zgu@2364: 
zgu@2364:   _opened_elf_files = file;
zgu@2364:   return file;
zgu@2364: }
zgu@2364: 
zgu@2364: #endif
zgu@2364: