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comparison src/share/vm/jvmci/jvmciJavaAccess.cpp @ 21559:be896a1983c0

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recast all Graal native code as JVMCI code (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Thu, 28 May 2015 15:36:48 +0200
parents src/share/vm/graal/graalJavaAccess.cpp@29916dcee0b8
children 0e095e2c24e2
comparison
equal deleted inserted replaced
21558:d563baeca9df 21559:be896a1983c0
1 /*
2 * Copyright (c) 2011, 2012 Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "precompiled.hpp"
25 #include "jvmci/jvmciJavaAccess.hpp"
26 #include "runtime/jniHandles.hpp"
27 #include "classfile/symbolTable.hpp"
28 // This function is similar to javaClasses.cpp, it computes the field offset of a (static or instance) field.
29 // It looks up the name and signature symbols without creating new ones, all the symbols of these classes need to be already loaded.
30
31 void compute_offset(int &dest_offset, Klass* klass, const char* name, const char* signature, bool static_field) {
32 InstanceKlass* ik = InstanceKlass::cast(klass);
33 Symbol* name_symbol = SymbolTable::probe(name, (int)strlen(name));
34 Symbol* signature_symbol = SymbolTable::probe(signature, (int)strlen(signature));
35 if (name_symbol == NULL || signature_symbol == NULL) {
36 #ifndef PRODUCT
37 ik->print_on(tty);
38 #endif
39 guarantee(false, err_msg("symbol with name %s and signature %s was not found in symbol table (klass=%s)", name, signature, klass->name()->as_C_string()));
40 }
41
42 fieldDescriptor fd;
43 if (!ik->find_field(name_symbol, signature_symbol, &fd)) {
44 ResourceMark rm;
45 fatal(err_msg("Invalid layout of %s at %s", name_symbol->as_C_string(), ik->external_name()));
46 }
47 guarantee(fd.is_static() == static_field, "static/instance mismatch");
48 dest_offset = fd.offset();
49 }
50
51 // This piece of macro magic creates the contents of the jvmci_compute_offsets method that initializes the field indices of all the access classes.
52
53 #define START_CLASS(name) { Klass* k = SystemDictionary::name##_klass(); assert(k != NULL, "Could not find class " #name "");
54
55 #define END_CLASS }
56
57 #define FIELD(klass, name, signature, static_field) compute_offset(klass::_##name##_offset, k, #name, signature, static_field);
58 #define CHAR_FIELD(klass, name) FIELD(klass, name, "C", false)
59 #define INT_FIELD(klass, name) FIELD(klass, name, "I", false)
60 #define BOOLEAN_FIELD(klass, name) FIELD(klass, name, "Z", false)
61 #define LONG_FIELD(klass, name) FIELD(klass, name, "J", false)
62 #define FLOAT_FIELD(klass, name) FIELD(klass, name, "F", false)
63 #define OOP_FIELD(klass, name, signature) FIELD(klass, name, signature, false)
64 #define STATIC_OOP_FIELD(klass, name, signature) FIELD(klass, name, signature, true)
65 #define STATIC_INT_FIELD(klass, name) FIELD(klass, name, "I", true)
66 #define STATIC_BOOLEAN_FIELD(klass, name) FIELD(klass, name, "Z", true)
67
68
69 void jvmci_compute_offsets() {
70 COMPILER_CLASSES_DO(START_CLASS, END_CLASS, CHAR_FIELD, INT_FIELD, BOOLEAN_FIELD, LONG_FIELD, FLOAT_FIELD, OOP_FIELD, OOP_FIELD, OOP_FIELD, STATIC_OOP_FIELD, STATIC_INT_FIELD, STATIC_BOOLEAN_FIELD)
71 guarantee(InstalledCode::_address_offset == sizeof(oopDesc), "codeBlob must be first field!");
72 }
73
74 #define EMPTY0
75 #define EMPTY1(x)
76 #define EMPTY2(x,y)
77 #define FIELD2(klass, name) int klass::_##name##_offset = 0;
78 #define FIELD3(klass, name, sig) FIELD2(klass, name)
79
80 COMPILER_CLASSES_DO(EMPTY1, EMPTY0, FIELD2, FIELD2, FIELD2, FIELD2, FIELD2, FIELD3, FIELD3, FIELD3, FIELD3, FIELD2, FIELD2)
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