hotspot/src/os/linux/vm/decoder_linux.cpp
author tschatzl
Tue, 28 May 2013 09:32:06 +0200
changeset 17854 d65bc1546091
parent 13963 e5b53c306fb5
child 22857 2167396cfc83
permissions -rw-r--r--
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen Summary: Fixed the output of G1SummarizeRSetStats: too small datatype for the number of concurrently processed cards, added concurrent remembered set thread time retrieval for Linux and Windows (BSD uses os::elapsedTime() now), and other cleanup. The information presented during VM operation is now relative to the previous output, not always cumulative if G1SummarizeRSetStatsPeriod > 0. At VM exit, the code prints a cumulative summary. Reviewed-by: johnc, jwilhelm
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/*
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 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "prims/jvm.h"
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#include "utilities/decoder_elf.hpp"
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#include <cxxabi.h>
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bool ElfDecoder::demangle(const char* symbol, char *buf, int buflen) {
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  int   status;
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  char* result;
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  size_t size = (size_t)buflen;
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  // Don't pass buf to __cxa_demangle. In case of the 'buf' is too small,
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  // __cxa_demangle will call system "realloc" for additional memory, which
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  // may use different malloc/realloc mechanism that allocates 'buf'.
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  if ((result = abi::__cxa_demangle(symbol, NULL, NULL, &status)) != NULL) {
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    jio_snprintf(buf, buflen, "%s", result);
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      // call c library's free
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      ::free(result);
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      return true;
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  }
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  return false;
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}
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