Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/relocator.hpp @ 8804:91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
Summary: In 64bit VM move CDS archive address to 32G on all platforms using new flag SharedBaseAddress. In 32bit VM set CDS archive address to 3Gb on Linux and let other OSs pick the address.
Reviewed-by: kvn, dcubed, zgu, hseigel
| author | coleenp |
|---|---|
| date | Wed, 20 Mar 2013 08:04:54 -0400 |
| parents | da91efe96a93 |
| children |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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_RUNTIME_RELOCATOR_HPP |
| 26 #define SHARE_VM_RUNTIME_RELOCATOR_HPP | |
| 27 | |
| 28 #include "interpreter/bytecodes.hpp" | |
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29 #include "oops/method.hpp" |
| 1972 | 30 #ifdef TARGET_ARCH_x86 |
| 31 # include "bytes_x86.hpp" | |
| 32 #endif | |
| 33 #ifdef TARGET_ARCH_sparc | |
| 34 # include "bytes_sparc.hpp" | |
| 35 #endif | |
| 36 #ifdef TARGET_ARCH_zero | |
| 37 # include "bytes_zero.hpp" | |
| 38 #endif | |
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39 #ifdef TARGET_ARCH_arm |
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40 # include "bytes_arm.hpp" |
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41 #endif |
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42 #ifdef TARGET_ARCH_ppc |
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43 # include "bytes_ppc.hpp" |
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44 #endif |
| 1972 | 45 |
| 0 | 46 // This code has been converted from the 1.1E java virtual machine |
| 47 // Thanks to the JavaTopics group for using the code | |
| 48 | |
| 49 class ChangeItem; | |
| 50 | |
| 51 // Callback object for code relocations | |
| 52 class RelocatorListener : public StackObj { | |
| 53 public: | |
| 54 RelocatorListener() {}; | |
| 55 virtual void relocated(int bci, int delta, int new_method_size) = 0; | |
| 56 }; | |
| 57 | |
| 58 | |
| 59 class Relocator : public ResourceObj { | |
| 60 public: | |
| 61 Relocator(methodHandle method, RelocatorListener* listener); | |
| 62 methodHandle insert_space_at(int bci, int space, u_char inst_buffer[], TRAPS); | |
| 63 | |
| 64 // Callbacks from ChangeItem's | |
| 65 bool handle_code_changes(); | |
| 66 bool handle_widen (int bci, int new_ilen, u_char inst_buffer[]); // handles general instructions | |
| 67 void push_jump_widen (int bci, int delta, int new_delta); // pushes jumps | |
| 68 bool handle_jump_widen (int bci, int delta); // handles jumps | |
| 69 bool handle_switch_pad (int bci, int old_pad, bool is_lookup_switch); // handles table and lookup switches | |
| 70 | |
| 71 private: | |
| 72 unsigned char* _code_array; | |
| 73 int _code_array_length; | |
| 74 int _code_length; | |
| 75 unsigned char* _compressed_line_number_table; | |
| 76 int _compressed_line_number_table_size; | |
| 77 methodHandle _method; | |
| 78 u_char _overwrite[3]; // stores overwritten bytes for shrunken instructions | |
| 79 | |
| 80 GrowableArray<ChangeItem*>* _changes; | |
| 81 | |
| 82 unsigned char* code_array() const { return _code_array; } | |
| 83 void set_code_array(unsigned char* array) { _code_array = array; } | |
| 84 | |
| 85 int code_length() const { return _code_length; } | |
| 86 void set_code_length(int length) { _code_length = length; } | |
| 87 | |
| 88 int code_array_length() const { return _code_array_length; } | |
| 89 void set_code_array_length(int length) { _code_array_length = length; } | |
| 90 | |
| 91 unsigned char* compressed_line_number_table() const { return _compressed_line_number_table; } | |
| 92 void set_compressed_line_number_table(unsigned char* table) { _compressed_line_number_table = table; } | |
| 93 | |
| 94 int compressed_line_number_table_size() const { return _compressed_line_number_table_size; } | |
| 95 void set_compressed_line_number_table_size(int size) { _compressed_line_number_table_size = size; } | |
| 96 | |
| 97 methodHandle method() const { return _method; } | |
| 98 void set_method(methodHandle method) { _method = method; } | |
| 99 | |
| 100 // This will return a raw bytecode, which is possibly rewritten. | |
| 101 Bytecodes::Code code_at(int bci) const { return (Bytecodes::Code) code_array()[bci]; } | |
| 102 void code_at_put(int bci, Bytecodes::Code code) { code_array()[bci] = (char) code; } | |
| 103 | |
| 104 // get and set signed integers in the code_array | |
| 105 inline int int_at(int bci) const { return Bytes::get_Java_u4(&code_array()[bci]); } | |
| 106 inline void int_at_put(int bci, int value) { Bytes::put_Java_u4(&code_array()[bci], value); } | |
| 107 | |
| 108 // get and set signed shorts in the code_array | |
| 109 inline short short_at(int bci) const { return (short)Bytes::get_Java_u2(&code_array()[bci]); } | |
| 110 inline void short_at_put(int bci, short value) { Bytes::put_Java_u2((address) &code_array()[bci], value); } | |
| 111 | |
| 112 // get the address of in the code_array | |
| 113 inline char* addr_at(int bci) const { return (char*) &code_array()[bci]; } | |
| 114 | |
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115 int instruction_length_at(int bci) { return Bytecodes::length_at(NULL, code_array() + bci); } |
| 0 | 116 |
| 117 // Helper methods | |
| 118 int align(int n) const { return (n+3) & ~3; } | |
| 119 int code_slop_pct() const { return 25; } | |
| 120 bool is_opcode_lookupswitch(Bytecodes::Code bc); | |
| 121 | |
| 122 // basic relocation methods | |
| 123 bool relocate_code (int bci, int ilen, int delta); | |
| 124 void change_jumps (int break_bci, int delta); | |
| 125 void change_jump (int bci, int offset, bool is_short, int break_bci, int delta); | |
| 126 void adjust_exception_table(int bci, int delta); | |
| 127 void adjust_line_no_table (int bci, int delta); | |
| 128 void adjust_local_var_table(int bci, int delta); | |
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129 void adjust_stack_map_table(int bci, int delta); |
| 0 | 130 int get_orig_switch_pad (int bci, bool is_lookup_switch); |
| 131 int rc_instr_len (int bci); | |
| 132 bool expand_code_array (int delta); | |
| 133 | |
| 134 // Callback support | |
| 135 RelocatorListener *_listener; | |
| 136 void notify(int bci, int delta, int new_code_length) { | |
| 137 if (_listener != NULL) | |
| 138 _listener->relocated(bci, delta, new_code_length); | |
| 139 } | |
| 140 }; | |
| 1972 | 141 |
| 142 #endif // SHARE_VM_RUNTIME_RELOCATOR_HPP |