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comparison src/share/vm/graal/graalInterpreterToVM.cpp @ 5747:120820e30baa

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added basic high-level interpreter support to HotSpot
author Christian Haeubl <haeubl@ssw.jku.at>
date Tue, 03 Jul 2012 16:56:40 +0200
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children d5f7e737827f
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5746:17d2c3b72762 5747:120820e30baa
1 /*
2 * Copyright (c) 2011, 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 "prims/jni.h"
26 #include "graal/graalInterpreterToVM.hpp"
27 #include "graal/graalCompiler.hpp"
28 #include "graal/graalCompilerToVM.hpp"
29
30 #ifdef HIGH_LEVEL_INTERPRETER
31
32 // public Object invoke(HotSpotResolvedJavaMethod method, boolean highLevel, Object... args);
33 JNIEXPORT jobject JNICALL Java_com_oracle_graal_hotspot_HotSpotRuntimeInterpreterInterface_invoke(JNIEnv *env, jobject, jobject method, jobject args) {
34 TRACE_graal_3("InterpreterToVM::invoke");
35
36 VM_ENTRY_MARK;
37 HandleMark hm;
38
39 assert(method != NULL, "just checking");
40 assert(thread->is_Java_thread(), "must be");
41 methodHandle mh = getMethodFromHotSpotMethod(method);
42
43 JavaCallArguments jca;
44 JavaArgumentUnboxer jap(mh->signature(), &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
45
46 #ifndef PRODUCT
47 if (PrintHighLevelInterpreterVMTransitions) {
48 ResourceMark rm;
49 tty->print_cr("High level interpreter -> VM (%s)", mh->name_and_sig_as_C_string());
50 }
51 #endif
52
53 JavaValue result(jap.get_ret_type());
54 thread->set_high_level_interpreter_in_vm(true);
55 JavaCalls::call(&result, mh, &jca, THREAD);
56 thread->set_high_level_interpreter_in_vm(false);
57
58 #ifndef PRODUCT
59 if (PrintHighLevelInterpreterVMTransitions) {
60 ResourceMark rm;
61 tty->print_cr("VM (%s) -> high level interpreter", mh->name_and_sig_as_C_string());
62 }
63 #endif
64
65 if (thread->has_pending_exception()) {
66 return NULL;
67 }
68
69 if (jap.get_ret_type() == T_VOID) {
70 return NULL;
71 } else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY) {
72 return JNIHandles::make_local((oop) result.get_jobject());
73 } else {
74 oop o = java_lang_boxing_object::create(jap.get_ret_type(), (jvalue *) result.get_value_addr(), CHECK_NULL);
75 return JNIHandles::make_local(o);
76 }
77 }
78
79 #define CC (char*) /*cast a literal from (const char*)*/
80 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(Java_com_oracle_graal_hotspot_HotSpotRuntimeInterpreterInterface_##f))
81
82 #define RESOLVED_METHOD "Lcom/oracle/graal/api/meta/ResolvedJavaMethod;"
83 #define OBJECT "Ljava/lang/Object;"
84
85 JNINativeMethod InterpreterToVM_methods[] = {
86 {CC"invoke", CC"("RESOLVED_METHOD "["OBJECT")"OBJECT, FN_PTR(invoke)}
87 };
88
89 int InterpreterToVM_methods_count() {
90 return sizeof(InterpreterToVM_methods) / sizeof(JNINativeMethod);
91 }
92
93 #endif // HIGH_LEVEL_INTERPRETER