Mercurial > hg > truffle
view src/share/vm/utilities/elfFile.hpp @ 4409:9f8e4aeec1a9
Merge
author | Andreas Woess <andreas.woess@jku.at> |
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date | Sun, 29 Jan 2012 11:40:04 +0100 |
parents | f08d439fab8c |
children | d7e3846464d0 |
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/* * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef __ELF_FILE_HPP #define __ELF_FILE_HPP #if !defined(_WINDOWS) && !defined(__APPLE__) #if defined(__OpenBSD__) #include <sys/exec_elf.h> #else #include <elf.h> #endif #include <stdio.h> #ifdef _LP64 typedef Elf64_Half Elf_Half; typedef Elf64_Word Elf_Word; typedef Elf64_Off Elf_Off; typedef Elf64_Addr Elf_Addr; typedef Elf64_Ehdr Elf_Ehdr; typedef Elf64_Shdr Elf_Shdr; typedef Elf64_Sym Elf_Sym; #if !defined(_ALLBSD_SOURCE) || defined(__APPLE__) #define ELF_ST_TYPE ELF64_ST_TYPE #endif #else typedef Elf32_Half Elf_Half; typedef Elf32_Word Elf_Word; typedef Elf32_Off Elf_Off; typedef Elf32_Addr Elf_Addr; typedef Elf32_Ehdr Elf_Ehdr; typedef Elf32_Shdr Elf_Shdr; typedef Elf32_Sym Elf_Sym; #if !defined(_ALLBSD_SOURCE) || defined(__APPLE__) #define ELF_ST_TYPE ELF32_ST_TYPE #endif #endif #include "globalDefinitions.hpp" #include "memory/allocation.hpp" #include "utilities/decoder.hpp" class ElfStringTable; class ElfSymbolTable; // On Solaris/Linux platforms, libjvm.so does contain all private symbols. // ElfFile is basically an elf file parser, which can lookup the symbol // that is the nearest to the given address. // Beware, this code is called from vm error reporting code, when vm is already // in "error" state, so there are scenarios, lookup will fail. We want this // part of code to be very defensive, and bait out if anything went wrong. class ElfFile: public CHeapObj { friend class Decoder; public: ElfFile(const char* filepath); ~ElfFile(); const char* decode(address addr, int* offset); const char* filepath() { return m_filepath; } bool same_elf_file(const char* filepath) { assert(filepath, "null file path"); assert(m_filepath, "already out of memory"); return (m_filepath && !strcmp(filepath, m_filepath)); } Decoder::decoder_status get_status() { return m_status; } private: // sanity check, if the file is a real elf file bool is_elf_file(Elf_Ehdr&); // load string tables from the elf file bool load_tables(); // string tables are stored in a linked list void add_string_table(ElfStringTable* table); // symbol tables are stored in a linked list void add_symbol_table(ElfSymbolTable* table); // return a string table at specified section index ElfStringTable* get_string_table(int index); // look up an address and return the nearest symbol const char* look_up(Elf_Shdr shdr, address addr, int* offset); protected: ElfFile* m_next; private: // file const char* m_filepath; FILE* m_file; // Elf header Elf_Ehdr m_elfHdr; // symbol tables ElfSymbolTable* m_symbol_tables; // string tables ElfStringTable* m_string_tables; Decoder::decoder_status m_status; }; #endif // _WINDOWS #endif // __ELF_FILE_HPP