1692
|
1 /*
|
1972
|
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
|
1692
|
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
|
1972
|
26 #include "precompiled.hpp"
|
|
27 #include "oops/klassOop.hpp"
|
|
28 #include "runtime/biasedLocking.hpp"
|
|
29 #include "runtime/deoptimization.hpp"
|
|
30 #include "runtime/thread.hpp"
|
|
31 #include "shark/llvmHeaders.hpp"
|
|
32 #include "shark/sharkRuntime.hpp"
|
|
33 #ifdef TARGET_ARCH_zero
|
|
34 # include "stack_zero.inline.hpp"
|
|
35 #endif
|
1692
|
36
|
|
37 using namespace llvm;
|
|
38
|
|
39 JRT_ENTRY(int, SharkRuntime::find_exception_handler(JavaThread* thread,
|
|
40 int* indexes,
|
|
41 int num_indexes))
|
|
42 constantPoolHandle pool(thread, method(thread)->constants());
|
|
43 KlassHandle exc_klass(thread, ((oop) tos_at(thread, 0))->klass());
|
|
44
|
|
45 for (int i = 0; i < num_indexes; i++) {
|
|
46 klassOop tmp = pool->klass_at(indexes[i], CHECK_0);
|
|
47 KlassHandle chk_klass(thread, tmp);
|
|
48
|
|
49 if (exc_klass() == chk_klass())
|
|
50 return i;
|
|
51
|
|
52 if (exc_klass()->klass_part()->is_subtype_of(chk_klass()))
|
|
53 return i;
|
|
54 }
|
|
55
|
|
56 return -1;
|
|
57 JRT_END
|
|
58
|
|
59 JRT_ENTRY(void, SharkRuntime::monitorenter(JavaThread* thread,
|
|
60 BasicObjectLock* lock))
|
|
61 if (PrintBiasedLockingStatistics)
|
|
62 Atomic::inc(BiasedLocking::slow_path_entry_count_addr());
|
|
63
|
|
64 Handle object(thread, lock->obj());
|
|
65 assert(Universe::heap()->is_in_reserved_or_null(object()), "should be");
|
|
66 if (UseBiasedLocking) {
|
|
67 // Retry fast entry if bias is revoked to avoid unnecessary inflation
|
|
68 ObjectSynchronizer::fast_enter(object, lock->lock(), true, CHECK);
|
|
69 } else {
|
|
70 ObjectSynchronizer::slow_enter(object, lock->lock(), CHECK);
|
|
71 }
|
|
72 assert(Universe::heap()->is_in_reserved_or_null(lock->obj()), "should be");
|
|
73 JRT_END
|
|
74
|
|
75 JRT_ENTRY(void, SharkRuntime::monitorexit(JavaThread* thread,
|
|
76 BasicObjectLock* lock))
|
|
77 Handle object(thread, lock->obj());
|
|
78 assert(Universe::heap()->is_in_reserved_or_null(object()), "should be");
|
|
79 if (lock == NULL || object()->is_unlocked()) {
|
|
80 THROW(vmSymbols::java_lang_IllegalMonitorStateException());
|
|
81 }
|
|
82 ObjectSynchronizer::slow_exit(object(), lock->lock(), thread);
|
|
83 JRT_END
|
|
84
|
|
85 JRT_ENTRY(void, SharkRuntime::new_instance(JavaThread* thread, int index))
|
|
86 klassOop k_oop = method(thread)->constants()->klass_at(index, CHECK);
|
|
87 instanceKlassHandle klass(THREAD, k_oop);
|
|
88
|
|
89 // Make sure we are not instantiating an abstract klass
|
|
90 klass->check_valid_for_instantiation(true, CHECK);
|
|
91
|
|
92 // Make sure klass is initialized
|
|
93 klass->initialize(CHECK);
|
|
94
|
|
95 // At this point the class may not be fully initialized
|
|
96 // because of recursive initialization. If it is fully
|
|
97 // initialized & has_finalized is not set, we rewrite
|
|
98 // it into its fast version (Note: no locking is needed
|
|
99 // here since this is an atomic byte write and can be
|
|
100 // done more than once).
|
|
101 //
|
|
102 // Note: In case of classes with has_finalized we don't
|
|
103 // rewrite since that saves us an extra check in
|
|
104 // the fast version which then would call the
|
|
105 // slow version anyway (and do a call back into
|
|
106 // Java).
|
|
107 // If we have a breakpoint, then we don't rewrite
|
|
108 // because the _breakpoint bytecode would be lost.
|
|
109 oop obj = klass->allocate_instance(CHECK);
|
|
110 thread->set_vm_result(obj);
|
|
111 JRT_END
|
|
112
|
|
113 JRT_ENTRY(void, SharkRuntime::newarray(JavaThread* thread,
|
|
114 BasicType type,
|
|
115 int size))
|
|
116 oop obj = oopFactory::new_typeArray(type, size, CHECK);
|
|
117 thread->set_vm_result(obj);
|
|
118 JRT_END
|
|
119
|
|
120 JRT_ENTRY(void, SharkRuntime::anewarray(JavaThread* thread,
|
|
121 int index,
|
|
122 int size))
|
|
123 klassOop klass = method(thread)->constants()->klass_at(index, CHECK);
|
|
124 objArrayOop obj = oopFactory::new_objArray(klass, size, CHECK);
|
|
125 thread->set_vm_result(obj);
|
|
126 JRT_END
|
|
127
|
|
128 JRT_ENTRY(void, SharkRuntime::multianewarray(JavaThread* thread,
|
|
129 int index,
|
|
130 int ndims,
|
|
131 int* dims))
|
|
132 klassOop klass = method(thread)->constants()->klass_at(index, CHECK);
|
|
133 oop obj = arrayKlass::cast(klass)->multi_allocate(ndims, dims, CHECK);
|
|
134 thread->set_vm_result(obj);
|
|
135 JRT_END
|
|
136
|
|
137 JRT_ENTRY(void, SharkRuntime::register_finalizer(JavaThread* thread,
|
|
138 oop object))
|
|
139 assert(object->is_oop(), "should be");
|
|
140 assert(object->klass()->klass_part()->has_finalizer(), "should have");
|
|
141 instanceKlass::register_finalizer(instanceOop(object), CHECK);
|
|
142 JRT_END
|
|
143
|
|
144 JRT_ENTRY(void, SharkRuntime::throw_ArithmeticException(JavaThread* thread,
|
|
145 const char* file,
|
|
146 int line))
|
|
147 Exceptions::_throw_msg(
|
|
148 thread, file, line,
|
|
149 vmSymbols::java_lang_ArithmeticException(),
|
|
150 "");
|
|
151 JRT_END
|
|
152
|
|
153 JRT_ENTRY(void, SharkRuntime::throw_ArrayIndexOutOfBoundsException(
|
|
154 JavaThread* thread,
|
|
155 const char* file,
|
|
156 int line,
|
|
157 int index))
|
|
158 char msg[jintAsStringSize];
|
|
159 snprintf(msg, sizeof(msg), "%d", index);
|
|
160 Exceptions::_throw_msg(
|
|
161 thread, file, line,
|
|
162 vmSymbols::java_lang_ArrayIndexOutOfBoundsException(),
|
|
163 msg);
|
|
164 JRT_END
|
|
165
|
|
166 JRT_ENTRY(void, SharkRuntime::throw_ClassCastException(JavaThread* thread,
|
|
167 const char* file,
|
|
168 int line))
|
|
169 Exceptions::_throw_msg(
|
|
170 thread, file, line,
|
|
171 vmSymbols::java_lang_ClassCastException(),
|
|
172 "");
|
|
173 JRT_END
|
|
174
|
|
175 JRT_ENTRY(void, SharkRuntime::throw_NullPointerException(JavaThread* thread,
|
|
176 const char* file,
|
|
177 int line))
|
|
178 Exceptions::_throw_msg(
|
|
179 thread, file, line,
|
|
180 vmSymbols::java_lang_NullPointerException(),
|
|
181 "");
|
|
182 JRT_END
|
|
183
|
|
184 // Non-VM calls
|
|
185 // Nothing in these must ever GC!
|
|
186
|
|
187 void SharkRuntime::dump(const char *name, intptr_t value) {
|
|
188 oop valueOop = (oop) value;
|
|
189 tty->print("%s = ", name);
|
|
190 if (valueOop->is_oop(true))
|
|
191 valueOop->print_on(tty);
|
|
192 else if (value >= ' ' && value <= '~')
|
|
193 tty->print("'%c' (%d)", value, value);
|
|
194 else
|
|
195 tty->print("%p", value);
|
|
196 tty->print_cr("");
|
|
197 }
|
|
198
|
|
199 bool SharkRuntime::is_subtype_of(klassOop check_klass, klassOop object_klass) {
|
|
200 return object_klass->klass_part()->is_subtype_of(check_klass);
|
|
201 }
|
|
202
|
|
203 int SharkRuntime::uncommon_trap(JavaThread* thread, int trap_request) {
|
|
204 Thread *THREAD = thread;
|
|
205
|
|
206 // In C2, uncommon_trap_blob creates a frame, so all the various
|
|
207 // deoptimization functions expect to find the frame of the method
|
|
208 // being deopted one frame down on the stack. We create a dummy
|
|
209 // frame to mirror this.
|
|
210 FakeStubFrame *stubframe = FakeStubFrame::build(CHECK_0);
|
|
211 thread->push_zero_frame(stubframe);
|
|
212
|
|
213 // Initiate the trap
|
|
214 thread->set_last_Java_frame();
|
|
215 Deoptimization::UnrollBlock *urb =
|
|
216 Deoptimization::uncommon_trap(thread, trap_request);
|
|
217 thread->reset_last_Java_frame();
|
|
218
|
|
219 // Pop our dummy frame and the frame being deoptimized
|
|
220 thread->pop_zero_frame();
|
|
221 thread->pop_zero_frame();
|
|
222
|
|
223 // Push skeleton frames
|
|
224 int number_of_frames = urb->number_of_frames();
|
|
225 for (int i = 0; i < number_of_frames; i++) {
|
|
226 intptr_t size = urb->frame_sizes()[i];
|
|
227 InterpreterFrame *frame = InterpreterFrame::build(size, CHECK_0);
|
|
228 thread->push_zero_frame(frame);
|
|
229 }
|
|
230
|
|
231 // Push another dummy frame
|
|
232 stubframe = FakeStubFrame::build(CHECK_0);
|
|
233 thread->push_zero_frame(stubframe);
|
|
234
|
|
235 // Fill in the skeleton frames
|
|
236 thread->set_last_Java_frame();
|
|
237 Deoptimization::unpack_frames(thread, Deoptimization::Unpack_uncommon_trap);
|
|
238 thread->reset_last_Java_frame();
|
|
239
|
|
240 // Pop our dummy frame
|
|
241 thread->pop_zero_frame();
|
|
242
|
|
243 // Fall back into the interpreter
|
|
244 return number_of_frames;
|
|
245 }
|
|
246
|
|
247 FakeStubFrame* FakeStubFrame::build(TRAPS) {
|
|
248 ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack();
|
|
249 stack->overflow_check(header_words, CHECK_NULL);
|
|
250
|
|
251 stack->push(0); // next_frame, filled in later
|
|
252 intptr_t *fp = stack->sp();
|
|
253 assert(fp - stack->sp() == next_frame_off, "should be");
|
|
254
|
|
255 stack->push(FAKE_STUB_FRAME);
|
|
256 assert(fp - stack->sp() == frame_type_off, "should be");
|
|
257
|
|
258 return (FakeStubFrame *) fp;
|
|
259 }
|