Mercurial > hg > truffle
diff src/share/vm/utilities/elfSymbolTable.hpp @ 2022:2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
Summary: Implemented in-process C native stack frame decoding when symbols are available.
Reviewed-by: coleenp, never
author | zgu |
---|---|
date | Sat, 11 Dec 2010 13:20:56 -0500 |
parents | |
children | f08d439fab8c |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/utilities/elfSymbolTable.hpp Sat Dec 11 13:20:56 2010 -0500 @@ -0,0 +1,73 @@ +/* + * 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_SYMBOL_TABLE_HPP +#define __ELF_SYMBOL_TABLE_HPP + +#ifndef _WINDOWS + + +#include "memory/allocation.hpp" +#include "utilities/decoder.hpp" +#include "utilities/elfFile.hpp" + +/* + * symbol table object represents a symbol section in an elf file. + * Whenever possible, it will load all symbols from the corresponding section + * of the elf file into memory. Otherwise, it will walk the section in file + * to look up the symbol that nearest the given address. + */ +class ElfSymbolTable: public CHeapObj { + friend class ElfFile; + public: + ElfSymbolTable(FILE* file, Elf_Shdr shdr); + ~ElfSymbolTable(); + + // search the symbol that is nearest to the specified address. + Decoder::decoder_status lookup(address addr, int* stringtableIndex, int* posIndex, int* offset); + + Decoder::decoder_status get_status() { return m_status; }; + + protected: + ElfSymbolTable* m_next; + + // holds a complete symbol table section if + // can allocate enough memory + Elf_Sym* m_symbols; + + // file contains string table + FILE* m_file; + + // section header + Elf_Shdr m_shdr; + + Decoder::decoder_status m_status; +}; + +#endif // _WINDOWS + +#endif // __ELF_SYMBOL_TABLE_HPP + + +