author | stefank |
Thu, 13 Apr 2017 09:57:51 +0200 | |
changeset 46620 | 750c6edff33b |
parent 46619 | a3919f5e8d2b |
child 46625 | edefffab74e2 |
permissions | -rw-r--r-- |
25946 | 1 |
/* |
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* Copyright (c) 2014, 2017, 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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#ifndef SHARE_VM_SERVICES_NMT_COMMON_HPP |
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#define SHARE_VM_SERVICES_NMT_COMMON_HPP |
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#include "memory/allocation.hpp" |
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#include "utilities/globalDefinitions.hpp" |
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#define CALC_OBJ_SIZE_IN_TYPE(obj, type) (align_up_(sizeof(obj), sizeof(type))/sizeof(type)) |
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// Native memory tracking level |
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enum NMT_TrackingLevel { |
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NMT_unknown = 0xFF, |
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NMT_off = 0x00, |
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NMT_minimal = 0x01, |
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NMT_summary = 0x02, |
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NMT_detail = 0x03 |
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}; |
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// Number of stack frames to capture. This is a |
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// build time decision. |
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const int NMT_TrackingStackDepth = 4; |
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// A few common utilities for native memory tracking |
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class NMTUtil : AllStatic { |
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public: |
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// Map memory type to index |
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static inline int flag_to_index(MEMFLAGS flag) { |
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const int index = flag & 0xff; |
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assert(index >= 0 && index < (int)mt_number_of_types, "Index out of bounds"); |
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return index; |
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} |
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// Map memory type to human readable name |
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static const char* flag_to_name(MEMFLAGS flag) { |
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return _memory_type_names[flag_to_index(flag)]; |
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} |
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// Map an index to memory type |
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static MEMFLAGS index_to_flag(int index) { |
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assert(index >= 0 && index < (int) mt_number_of_types, "Index out of bounds"); |
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return (MEMFLAGS)index; |
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} |
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// Memory size scale |
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static const char* scale_name(size_t scale); |
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static size_t scale_from_name(const char* scale); |
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// Translate memory size in specified scale |
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static size_t amount_in_scale(size_t amount, size_t scale) { |
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return (amount + scale / 2) / scale; |
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} |
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private: |
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static const char* _memory_type_names[mt_number_of_types]; |
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}; |
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#endif |