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annotate src/share/vm/utilities/elfSymbolTable.hpp @ 17716:cdb71841f4bc

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6498581: ThreadInterruptTest3 produces wrong output on Windows Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set. Reviewed-by: acorn, kvn Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
author minqi
date Wed, 26 Feb 2014 15:20:41 -0800
parents b9a9ed0f8eeb
children e7cbc95179c4
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1 /*
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_UTILITIES_ELF_SYMBOL_TABLE_HPP
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26 #define SHARE_VM_UTILITIES_ELF_SYMBOL_TABLE_HPP
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27
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28 #if !defined(_WINDOWS) && !defined(__APPLE__)
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31 #include "memory/allocation.hpp"
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32 #include "utilities/decoder.hpp"
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33 #include "utilities/elfFile.hpp"
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34
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35 /*
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36 * symbol table object represents a symbol section in an elf file.
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37 * Whenever possible, it will load all symbols from the corresponding section
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38 * of the elf file into memory. Otherwise, it will walk the section in file
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39 * to look up the symbol that nearest the given address.
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40 */
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41 class ElfSymbolTable: public CHeapObj<mtInternal> {
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42 friend class ElfFile;
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43 public:
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44 ElfSymbolTable(FILE* file, Elf_Shdr shdr);
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45 ~ElfSymbolTable();
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46
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47 // search the symbol that is nearest to the specified address.
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48 bool lookup(address addr, int* stringtableIndex, int* posIndex, int* offset);
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49
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50 NullDecoder::decoder_status get_status() { return m_status; };
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51
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52 protected:
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53 ElfSymbolTable* m_next;
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54
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55 // holds a complete symbol table section if
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56 // can allocate enough memory
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57 Elf_Sym* m_symbols;
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58
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59 // file contains string table
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60 FILE* m_file;
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61
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62 // section header
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63 Elf_Shdr m_shdr;
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64
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65 NullDecoder::decoder_status m_status;
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66 };
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67
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68 #endif // _WINDOWS and _APPLE
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69
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70 #endif // SHARE_VM_UTILITIES_ELF_SYMBOL_TABLE_HPP