1692
|
1 /*
|
|
2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.
|
|
3 * Copyright 2008, 2009, 2010 Red Hat, Inc.
|
|
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
5 *
|
|
6 * This code is free software; you can redistribute it and/or modify it
|
|
7 * under the terms of the GNU General Public License version 2 only, as
|
|
8 * published by the Free Software Foundation.
|
|
9 *
|
|
10 * This code is distributed in the hope that it will be useful, but WITHOUT
|
|
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
13 * version 2 for more details (a copy is included in the LICENSE file that
|
|
14 * accompanied this code).
|
|
15 *
|
|
16 * You should have received a copy of the GNU General Public License version
|
|
17 * 2 along with this work; if not, write to the Free Software Foundation,
|
|
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
19 *
|
|
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
21 * or visit www.oracle.com if you need additional information or have any
|
|
22 * questions.
|
|
23 *
|
|
24 */
|
|
25
|
|
26 #include "incls/_precompiled.incl"
|
|
27 #include "incls/_sharkRuntime.cpp.incl"
|
|
28
|
|
29 using namespace llvm;
|
|
30
|
|
31 JRT_ENTRY(int, SharkRuntime::find_exception_handler(JavaThread* thread,
|
|
32 int* indexes,
|
|
33 int num_indexes))
|
|
34 constantPoolHandle pool(thread, method(thread)->constants());
|
|
35 KlassHandle exc_klass(thread, ((oop) tos_at(thread, 0))->klass());
|
|
36
|
|
37 for (int i = 0; i < num_indexes; i++) {
|
|
38 klassOop tmp = pool->klass_at(indexes[i], CHECK_0);
|
|
39 KlassHandle chk_klass(thread, tmp);
|
|
40
|
|
41 if (exc_klass() == chk_klass())
|
|
42 return i;
|
|
43
|
|
44 if (exc_klass()->klass_part()->is_subtype_of(chk_klass()))
|
|
45 return i;
|
|
46 }
|
|
47
|
|
48 return -1;
|
|
49 JRT_END
|
|
50
|
|
51 JRT_ENTRY(void, SharkRuntime::monitorenter(JavaThread* thread,
|
|
52 BasicObjectLock* lock))
|
|
53 if (PrintBiasedLockingStatistics)
|
|
54 Atomic::inc(BiasedLocking::slow_path_entry_count_addr());
|
|
55
|
|
56 Handle object(thread, lock->obj());
|
|
57 assert(Universe::heap()->is_in_reserved_or_null(object()), "should be");
|
|
58 if (UseBiasedLocking) {
|
|
59 // Retry fast entry if bias is revoked to avoid unnecessary inflation
|
|
60 ObjectSynchronizer::fast_enter(object, lock->lock(), true, CHECK);
|
|
61 } else {
|
|
62 ObjectSynchronizer::slow_enter(object, lock->lock(), CHECK);
|
|
63 }
|
|
64 assert(Universe::heap()->is_in_reserved_or_null(lock->obj()), "should be");
|
|
65 JRT_END
|
|
66
|
|
67 JRT_ENTRY(void, SharkRuntime::monitorexit(JavaThread* thread,
|
|
68 BasicObjectLock* lock))
|
|
69 Handle object(thread, lock->obj());
|
|
70 assert(Universe::heap()->is_in_reserved_or_null(object()), "should be");
|
|
71 if (lock == NULL || object()->is_unlocked()) {
|
|
72 THROW(vmSymbols::java_lang_IllegalMonitorStateException());
|
|
73 }
|
|
74 ObjectSynchronizer::slow_exit(object(), lock->lock(), thread);
|
|
75 JRT_END
|
|
76
|
|
77 JRT_ENTRY(void, SharkRuntime::new_instance(JavaThread* thread, int index))
|
|
78 klassOop k_oop = method(thread)->constants()->klass_at(index, CHECK);
|
|
79 instanceKlassHandle klass(THREAD, k_oop);
|
|
80
|
|
81 // Make sure we are not instantiating an abstract klass
|
|
82 klass->check_valid_for_instantiation(true, CHECK);
|
|
83
|
|
84 // Make sure klass is initialized
|
|
85 klass->initialize(CHECK);
|
|
86
|
|
87 // At this point the class may not be fully initialized
|
|
88 // because of recursive initialization. If it is fully
|
|
89 // initialized & has_finalized is not set, we rewrite
|
|
90 // it into its fast version (Note: no locking is needed
|
|
91 // here since this is an atomic byte write and can be
|
|
92 // done more than once).
|
|
93 //
|
|
94 // Note: In case of classes with has_finalized we don't
|
|
95 // rewrite since that saves us an extra check in
|
|
96 // the fast version which then would call the
|
|
97 // slow version anyway (and do a call back into
|
|
98 // Java).
|
|
99 // If we have a breakpoint, then we don't rewrite
|
|
100 // because the _breakpoint bytecode would be lost.
|
|
101 oop obj = klass->allocate_instance(CHECK);
|
|
102 thread->set_vm_result(obj);
|
|
103 JRT_END
|
|
104
|
|
105 JRT_ENTRY(void, SharkRuntime::newarray(JavaThread* thread,
|
|
106 BasicType type,
|
|
107 int size))
|
|
108 oop obj = oopFactory::new_typeArray(type, size, CHECK);
|
|
109 thread->set_vm_result(obj);
|
|
110 JRT_END
|
|
111
|
|
112 JRT_ENTRY(void, SharkRuntime::anewarray(JavaThread* thread,
|
|
113 int index,
|
|
114 int size))
|
|
115 klassOop klass = method(thread)->constants()->klass_at(index, CHECK);
|
|
116 objArrayOop obj = oopFactory::new_objArray(klass, size, CHECK);
|
|
117 thread->set_vm_result(obj);
|
|
118 JRT_END
|
|
119
|
|
120 JRT_ENTRY(void, SharkRuntime::multianewarray(JavaThread* thread,
|
|
121 int index,
|
|
122 int ndims,
|
|
123 int* dims))
|
|
124 klassOop klass = method(thread)->constants()->klass_at(index, CHECK);
|
|
125 oop obj = arrayKlass::cast(klass)->multi_allocate(ndims, dims, CHECK);
|
|
126 thread->set_vm_result(obj);
|
|
127 JRT_END
|
|
128
|
|
129 JRT_ENTRY(void, SharkRuntime::register_finalizer(JavaThread* thread,
|
|
130 oop object))
|
|
131 assert(object->is_oop(), "should be");
|
|
132 assert(object->klass()->klass_part()->has_finalizer(), "should have");
|
|
133 instanceKlass::register_finalizer(instanceOop(object), CHECK);
|
|
134 JRT_END
|
|
135
|
|
136 JRT_ENTRY(void, SharkRuntime::throw_ArithmeticException(JavaThread* thread,
|
|
137 const char* file,
|
|
138 int line))
|
|
139 Exceptions::_throw_msg(
|
|
140 thread, file, line,
|
|
141 vmSymbols::java_lang_ArithmeticException(),
|
|
142 "");
|
|
143 JRT_END
|
|
144
|
|
145 JRT_ENTRY(void, SharkRuntime::throw_ArrayIndexOutOfBoundsException(
|
|
146 JavaThread* thread,
|
|
147 const char* file,
|
|
148 int line,
|
|
149 int index))
|
|
150 char msg[jintAsStringSize];
|
|
151 snprintf(msg, sizeof(msg), "%d", index);
|
|
152 Exceptions::_throw_msg(
|
|
153 thread, file, line,
|
|
154 vmSymbols::java_lang_ArrayIndexOutOfBoundsException(),
|
|
155 msg);
|
|
156 JRT_END
|
|
157
|
|
158 JRT_ENTRY(void, SharkRuntime::throw_ClassCastException(JavaThread* thread,
|
|
159 const char* file,
|
|
160 int line))
|
|
161 Exceptions::_throw_msg(
|
|
162 thread, file, line,
|
|
163 vmSymbols::java_lang_ClassCastException(),
|
|
164 "");
|
|
165 JRT_END
|
|
166
|
|
167 JRT_ENTRY(void, SharkRuntime::throw_NullPointerException(JavaThread* thread,
|
|
168 const char* file,
|
|
169 int line))
|
|
170 Exceptions::_throw_msg(
|
|
171 thread, file, line,
|
|
172 vmSymbols::java_lang_NullPointerException(),
|
|
173 "");
|
|
174 JRT_END
|
|
175
|
|
176 // Non-VM calls
|
|
177 // Nothing in these must ever GC!
|
|
178
|
|
179 void SharkRuntime::dump(const char *name, intptr_t value) {
|
|
180 oop valueOop = (oop) value;
|
|
181 tty->print("%s = ", name);
|
|
182 if (valueOop->is_oop(true))
|
|
183 valueOop->print_on(tty);
|
|
184 else if (value >= ' ' && value <= '~')
|
|
185 tty->print("'%c' (%d)", value, value);
|
|
186 else
|
|
187 tty->print("%p", value);
|
|
188 tty->print_cr("");
|
|
189 }
|
|
190
|
|
191 bool SharkRuntime::is_subtype_of(klassOop check_klass, klassOop object_klass) {
|
|
192 return object_klass->klass_part()->is_subtype_of(check_klass);
|
|
193 }
|
|
194
|
|
195 int SharkRuntime::uncommon_trap(JavaThread* thread, int trap_request) {
|
|
196 Thread *THREAD = thread;
|
|
197
|
|
198 // In C2, uncommon_trap_blob creates a frame, so all the various
|
|
199 // deoptimization functions expect to find the frame of the method
|
|
200 // being deopted one frame down on the stack. We create a dummy
|
|
201 // frame to mirror this.
|
|
202 FakeStubFrame *stubframe = FakeStubFrame::build(CHECK_0);
|
|
203 thread->push_zero_frame(stubframe);
|
|
204
|
|
205 // Initiate the trap
|
|
206 thread->set_last_Java_frame();
|
|
207 Deoptimization::UnrollBlock *urb =
|
|
208 Deoptimization::uncommon_trap(thread, trap_request);
|
|
209 thread->reset_last_Java_frame();
|
|
210
|
|
211 // Pop our dummy frame and the frame being deoptimized
|
|
212 thread->pop_zero_frame();
|
|
213 thread->pop_zero_frame();
|
|
214
|
|
215 // Push skeleton frames
|
|
216 int number_of_frames = urb->number_of_frames();
|
|
217 for (int i = 0; i < number_of_frames; i++) {
|
|
218 intptr_t size = urb->frame_sizes()[i];
|
|
219 InterpreterFrame *frame = InterpreterFrame::build(size, CHECK_0);
|
|
220 thread->push_zero_frame(frame);
|
|
221 }
|
|
222
|
|
223 // Push another dummy frame
|
|
224 stubframe = FakeStubFrame::build(CHECK_0);
|
|
225 thread->push_zero_frame(stubframe);
|
|
226
|
|
227 // Fill in the skeleton frames
|
|
228 thread->set_last_Java_frame();
|
|
229 Deoptimization::unpack_frames(thread, Deoptimization::Unpack_uncommon_trap);
|
|
230 thread->reset_last_Java_frame();
|
|
231
|
|
232 // Pop our dummy frame
|
|
233 thread->pop_zero_frame();
|
|
234
|
|
235 // Fall back into the interpreter
|
|
236 return number_of_frames;
|
|
237 }
|
|
238
|
|
239 FakeStubFrame* FakeStubFrame::build(TRAPS) {
|
|
240 ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack();
|
|
241 stack->overflow_check(header_words, CHECK_NULL);
|
|
242
|
|
243 stack->push(0); // next_frame, filled in later
|
|
244 intptr_t *fp = stack->sp();
|
|
245 assert(fp - stack->sp() == next_frame_off, "should be");
|
|
246
|
|
247 stack->push(FAKE_STUB_FRAME);
|
|
248 assert(fp - stack->sp() == frame_type_off, "should be");
|
|
249
|
|
250 return (FakeStubFrame *) fp;
|
|
251 }
|