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annotate src/share/vm/c1x/c1x_TargetMethod.cpp @ 1434:72cfb36c6bb2

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* enabled all jtt tests * added proxy that counts jni calls * honor hotspot stackshadowpages * constant pool caching * monitor enter/exit * arithmetic stubs (frem, drem, ...) * create stack values for debug info * some doc
author Lukas Stadler <lukas.stadler@oracle.com>
date Thu, 30 Sep 2010 17:19:48 -0700
parents b61a43cd1255
children 20a3896518ac
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1 /*
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2 * Copyright 2000-2010 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 # include "incls/_precompiled.incl"
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26 # include "incls/_c1x_TargetMethod.cpp.incl"
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27
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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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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 symbolOop name_symbol = SymbolTable::probe(name, strlen(name));
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33 symbolOop signature_symbol = SymbolTable::probe(signature, strlen(signature));
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34 assert(name_symbol != NULL, "symbol not found - class layout changed?");
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35 assert(signature_symbol != NULL, "symbol not found - class layout changed?");
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36
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37 instanceKlass* ik = instanceKlass::cast(klass_oop);
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38 fieldDescriptor fd;
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39 if (!ik->find_field(name_symbol, signature_symbol, &fd)) {
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40 ResourceMark rm;
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41 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string());
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42 fatal("Invalid layout of preloaded class");
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43 }
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44 assert(fd.is_static() == static_field, "static/instance mismatch");
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45 dest_offset = fd.offset();
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46 }
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47
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48 // This piece of macro magic creates the contents of the c1x_compute_offsets method that initializes the field indices of all the access classes.
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50 #define START_CLASS(name) { klassOop k = SystemDictionary::name##_klass();
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51
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52 #define END_CLASS }
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53
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54 #define FIELD(klass, name, signature, static_field) compute_offset(klass::_##name##_offset, k, #name, signature, static_field);
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55 #define CHAR_FIELD(klass, name) FIELD(klass, name, "C", false)
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56 #define INT_FIELD(klass, name) FIELD(klass, name, "I", false)
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57 #define BOOLEAN_FIELD(klass, name) FIELD(klass, name, "Z", false)
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58 #define LONG_FIELD(klass, name) FIELD(klass, name, "J", false)
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59 #define OOP_FIELD(klass, name, signature) FIELD(klass, name, signature, false)
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60 #define STATIC_OOP_FIELD(klass, name, signature) FIELD(klass, name, signature, true)
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63 void c1x_compute_offsets() {
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64 COMPILER_CLASSES_DO(START_CLASS, END_CLASS, CHAR_FIELD, INT_FIELD, BOOLEAN_FIELD, LONG_FIELD, OOP_FIELD, STATIC_OOP_FIELD)
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65 }
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66
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67 #define EMPTY0
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68 #define EMPTY1(x)
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69 #define EMPTY2(x,y)
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70 #define FIELD2(klass, name) int klass::_##name##_offset = 0;
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71 #define FIELD3(klass, name, sig) FIELD2(klass, name)
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73 COMPILER_CLASSES_DO(EMPTY1, EMPTY0, FIELD2, FIELD2, FIELD2, FIELD2, FIELD3, FIELD3)
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