Mercurial > hg > graal-compiler
annotate src/share/vm/graal/graalJavaAccess.cpp @ 3632:136ea96eb7f8
Remove the need for VmId (last usage was the constant pool).
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Mon, 14 Nov 2011 22:33:15 +0100 |
parents | 0e3ec0a4eda4 |
children | a59727158259 |
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1 /* |
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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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. |
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22 */ |
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23 |
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24 #include "precompiled.hpp" |
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25 #include "graal/graalJavaAccess.hpp" |
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26 #include "runtime/jniHandles.hpp" |
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27 #include "classfile/symbolTable.hpp" |
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28 // This function is similar to javaClasses.cpp, it computes the field offset of a (static or instance) field. |
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29 // It looks up the name and signature symbols without creating new ones, all the symbols of these classes need to be already loaded. |
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30 |
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31 static void compute_offset(int &dest_offset, klassOop klass_oop, const char* name, const char* signature, bool static_field) { |
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32 Symbol* name_symbol = SymbolTable::probe(name, (int)strlen(name)); |
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33 Symbol* signature_symbol = SymbolTable::probe(signature, (int)strlen(signature)); |
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34 #ifdef DEBUG |
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35 if (name_symbol == NULL) { |
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36 tty->print_cr("symbol with name %s was not found in symbol table (klass=%s)", name, klass_oop->klass_part()->name()->as_C_string()); |
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37 } |
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38 #endif |
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39 assert(name_symbol != NULL, "symbol not found - class layout changed?"); |
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40 assert(signature_symbol != NULL, "symbol not found - class layout changed?"); |
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41 |
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42 instanceKlass* ik = instanceKlass::cast(klass_oop); |
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43 fieldDescriptor fd; |
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44 if (!ik->find_field(name_symbol, signature_symbol, &fd)) { |
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45 ResourceMark rm; |
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46 tty->print_cr("Invalid layout of %s at %s", name_symbol->as_C_string(), ik->external_name()); |
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47 fatal("Invalid layout of preloaded class"); |
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48 } |
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49 assert(fd.is_static() == static_field, "static/instance mismatch"); |
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50 dest_offset = fd.offset(); |
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51 } |
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52 |
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53 // This piece of macro magic creates the contents of the graal_compute_offsets method that initializes the field indices of all the access classes. |
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54 |
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55 #define START_CLASS(name) { klassOop k = SystemDictionary::name##_klass(); assert(k != NULL, "Could not find class " #name ""); |
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56 |
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57 #define END_CLASS } |
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58 |
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59 #define FIELD(klass, name, signature, static_field) compute_offset(klass::_##name##_offset, k, #name, signature, static_field); |
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60 #define CHAR_FIELD(klass, name) FIELD(klass, name, "C", false) |
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61 #define INT_FIELD(klass, name) FIELD(klass, name, "I", false) |
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62 #define BOOLEAN_FIELD(klass, name) FIELD(klass, name, "Z", false) |
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63 #define LONG_FIELD(klass, name) FIELD(klass, name, "J", false) |
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64 #define FLOAT_FIELD(klass, name) FIELD(klass, name, "F", false) |
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65 #define OOP_FIELD(klass, name, signature) FIELD(klass, name, signature, false) |
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66 #define STATIC_OOP_FIELD(klass, name, signature) FIELD(klass, name, signature, true) |
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67 |
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68 |
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69 void graal_compute_offsets() { |
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70 COMPILER_CLASSES_DO(START_CLASS, END_CLASS, CHAR_FIELD, INT_FIELD, BOOLEAN_FIELD, LONG_FIELD, FLOAT_FIELD, OOP_FIELD, STATIC_OOP_FIELD) |
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71 } |
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72 |
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73 #define EMPTY0 |
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74 #define EMPTY1(x) |
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75 #define EMPTY2(x,y) |
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76 #define FIELD2(klass, name) int klass::_##name##_offset = 0; |
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77 #define FIELD3(klass, name, sig) FIELD2(klass, name) |
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78 |
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79 COMPILER_CLASSES_DO(EMPTY1, EMPTY0, FIELD2, FIELD2, FIELD2, FIELD2, FIELD2, FIELD3, FIELD3) |
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80 |
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81 |
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84 |