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comparison src/share/vm/code/codeCache.hpp @ 10408:836a62f43af9

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Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
author Doug Simon <doug.simon@oracle.com>
date Wed, 19 Jun 2013 10:45:56 +0200
parents 4a7dc38ae96b f2110083203d
children f22cbff51c12
comparison
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10086:e0fb8a213650 10408:836a62f43af9
1 /* 1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
55 static int _number_of_adapters; 55 static int _number_of_adapters;
56 static int _number_of_nmethods; 56 static int _number_of_nmethods;
57 static int _number_of_nmethods_with_dependencies; 57 static int _number_of_nmethods_with_dependencies;
58 static bool _needs_cache_clean; 58 static bool _needs_cache_clean;
59 static nmethod* _scavenge_root_nmethods; // linked via nm->scavenge_root_link() 59 static nmethod* _scavenge_root_nmethods; // linked via nm->scavenge_root_link()
60 static nmethod* _saved_nmethods; // linked via nm->saved_nmethod_look() 60 static nmethod* _saved_nmethods; // Linked list of speculatively disconnected nmethods.
61 61
62 static void verify_if_often() PRODUCT_RETURN; 62 static void verify_if_often() PRODUCT_RETURN;
63 63
64 static void mark_scavenge_root_nmethods() PRODUCT_RETURN; 64 static void mark_scavenge_root_nmethods() PRODUCT_RETURN;
65 static void verify_perm_nmethods(CodeBlobClosure* f_or_null) PRODUCT_RETURN; 65 static void verify_perm_nmethods(CodeBlobClosure* f_or_null) PRODUCT_RETURN;
66 66
67 static int _codemem_full_count;
68
67 public: 69 public:
68 70
69 // Initialization 71 // Initialization
70 static void initialize(); 72 static void initialize();
71 73
74 static void report_codemem_full();
75
72 // Allocation/administration 76 // Allocation/administration
73 static CodeBlob* allocate(int size); // allocates a new CodeBlob 77 static CodeBlob* allocate(int size, bool is_critical = false); // allocates a new CodeBlob
74 static void commit(CodeBlob* cb); // called when the allocated CodeBlob has been filled 78 static void commit(CodeBlob* cb); // called when the allocated CodeBlob has been filled
75 static int alignment_unit(); // guaranteed alignment of all CodeBlobs 79 static int alignment_unit(); // guaranteed alignment of all CodeBlobs
76 static int alignment_offset(); // guaranteed offset of first CodeBlob byte within alignment unit (i.e., allocation header) 80 static int alignment_offset(); // guaranteed offset of first CodeBlob byte within alignment unit (i.e., allocation header)
77 static void free(CodeBlob* cb); // frees a CodeBlob 81 static void free(CodeBlob* cb); // frees a CodeBlob
78 static void flush(); // flushes all CodeBlobs 82 static void flush(); // flushes all CodeBlobs
158 static void log_state(outputStream* st); 162 static void log_state(outputStream* st);
159 163
160 // The full limits of the codeCache 164 // The full limits of the codeCache
161 static address low_bound() { return (address) _heap->low_boundary(); } 165 static address low_bound() { return (address) _heap->low_boundary(); }
162 static address high_bound() { return (address) _heap->high_boundary(); } 166 static address high_bound() { return (address) _heap->high_boundary(); }
163 167 static address high() { return (address) _heap->high(); }
164 static bool has_space(int size) {
165 // Always leave some room in the CodeCache for I2C/C2I adapters
166 return largest_free_block() > (CodeCacheMinimumFreeSpace + size);
167 }
168 168
169 // Profiling 169 // Profiling
170 static address first_address(); // first address used for CodeBlobs 170 static address first_address(); // first address used for CodeBlobs
171 static address last_address(); // last address used for CodeBlobs 171 static address last_address(); // last address used for CodeBlobs
172 static size_t capacity() { return _heap->capacity(); } 172 static size_t capacity() { return _heap->capacity(); }
173 static size_t max_capacity() { return _heap->max_capacity(); } 173 static size_t max_capacity() { return _heap->max_capacity(); }
174 static size_t unallocated_capacity() { return _heap->unallocated_capacity(); } 174 static size_t unallocated_capacity() { return _heap->unallocated_capacity(); }
175 static size_t largest_free_block(); 175 static bool needs_flushing() { return unallocated_capacity() < CodeCacheFlushingMinimumFreeSpace; }
176 static bool needs_flushing() { return largest_free_block() < CodeCacheFlushingMinimumFreeSpace; } 176 static double reverse_free_ratio();
177 177
178 static bool needs_cache_clean() { return _needs_cache_clean; } 178 static bool needs_cache_clean() { return _needs_cache_clean; }
179 static void set_needs_cache_clean(bool v) { _needs_cache_clean = v; } 179 static void set_needs_cache_clean(bool v) { _needs_cache_clean = v; }
180 static void clear_inline_caches(); // clear all inline caches 180 static void clear_inline_caches(); // clear all inline caches
181 181
182 static nmethod* find_and_remove_saved_code(Method* m); 182 static nmethod* reanimate_saved_code(Method* m);
183 static void remove_saved_code(nmethod* nm); 183 static void remove_saved_code(nmethod* nm);
184 static void speculatively_disconnect(nmethod* nm); 184 static void speculatively_disconnect(nmethod* nm);
185 185
186 // Deoptimization 186 // Deoptimization
187 static int mark_for_deoptimization(DepChange& changes); 187 static int mark_for_deoptimization(DepChange& changes);
194 static void make_marked_nmethods_zombies(); 194 static void make_marked_nmethods_zombies();
195 static void make_marked_nmethods_not_entrant(); 195 static void make_marked_nmethods_not_entrant();
196 196
197 // tells how many nmethods have dependencies 197 // tells how many nmethods have dependencies
198 static int number_of_nmethods_with_dependencies(); 198 static int number_of_nmethods_with_dependencies();
199
200 static int get_codemem_full_count() { return _codemem_full_count; }
199 }; 201 };
200 202
201 #endif // SHARE_VM_CODE_CODECACHE_HPP 203 #endif // SHARE_VM_CODE_CODECACHE_HPP