Mercurial > hg > graal-compiler
annotate src/share/vm/services/heapDumper.hpp @ 2142:8012aa3ccede
4926272: methodOopDesc::method_from_bcp is unsafe
Reviewed-by: coleenp, jrose, kvn, dcubed
author | never |
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date | Thu, 13 Jan 2011 22:15:41 -0800 |
parents | f95d63e2154a |
children | da91efe96a93 |
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0 | 1 /* |
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2 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
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 | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_SERVICES_HEAPDUMPER_HPP |
26 #define SHARE_VM_SERVICES_HEAPDUMPER_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 #include "oops/klassOop.hpp" | |
30 #include "oops/oop.hpp" | |
31 #include "runtime/os.hpp" | |
32 | |
0 | 33 // HeapDumper is used to dump the java heap to file in HPROF binary format: |
34 // | |
35 // { HeapDumper dumper(true /* full GC before heap dump */); | |
36 // if (dumper.dump("/export/java.hprof")) { | |
37 // ResourceMark rm; | |
38 // tty->print_cr("Dump failed: %s", dumper.error_as_C_string()); | |
39 // } else { | |
40 // // dump succeeded | |
41 // } | |
42 // } | |
43 // | |
44 | |
45 class HeapDumper : public StackObj { | |
46 private: | |
47 char* _error; | |
48 bool _print_to_tty; | |
49 bool _gc_before_heap_dump; | |
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50 bool _oome; |
0 | 51 elapsedTimer _t; |
52 | |
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53 HeapDumper(bool gc_before_heap_dump, bool print_to_tty, bool oome) : |
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54 _gc_before_heap_dump(gc_before_heap_dump), _error(NULL), _print_to_tty(print_to_tty), _oome(oome) { } |
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55 |
0 | 56 // string representation of error |
57 char* error() const { return _error; } | |
58 void set_error(char* error); | |
59 | |
60 // indicates if progress messages can be sent to tty | |
61 bool print_to_tty() const { return _print_to_tty; } | |
62 | |
63 // internal timer. | |
64 elapsedTimer* timer() { return &_t; } | |
65 | |
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66 static void dump_heap(bool oome); |
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67 |
0 | 68 public: |
69 HeapDumper(bool gc_before_heap_dump) : | |
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70 _gc_before_heap_dump(gc_before_heap_dump), _error(NULL), _print_to_tty(false), _oome(false) { } |
0 | 71 |
72 ~HeapDumper(); | |
73 | |
74 // dumps the heap to the specified file, returns 0 if success. | |
75 int dump(const char* path); | |
76 | |
77 // returns error message (resource allocated), or NULL if no error | |
78 char* error_as_C_string() const; | |
79 | |
80 static void dump_heap() KERNEL_RETURN; | |
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81 |
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82 static void dump_heap_from_oome() KERNEL_RETURN; |
0 | 83 }; |
1972 | 84 |
85 #endif // SHARE_VM_SERVICES_HEAPDUMPER_HPP |