1 /*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "arch/context.h"
18 #include "base/logging.h" // For VLOG_IS_ON.
19 #include "base/mutex.h"
20 #include "callee_save_frame.h"
21 #include "interpreter/interpreter.h"
22 #include "obj_ptr-inl.h" // TODO: Find the other include that isn't complete, and clean this up.
23 #include "quick_exception_handler.h"
24 #include "runtime.h"
25 #include "thread.h"
26
27 namespace art HIDDEN {
28
artDeoptimize(Thread * self,bool skip_method_exit_callbacks)29 extern "C" Context* artDeoptimize(Thread* self, bool skip_method_exit_callbacks)
30 REQUIRES_SHARED(Locks::mutator_lock_) {
31 ScopedQuickEntrypointChecks sqec(self);
32 std::unique_ptr<Context> context = self->Deoptimize(DeoptimizationKind::kFullFrame,
33 /*single_frame=*/ false,
34 skip_method_exit_callbacks);
35 DCHECK(context != nullptr);
36 return context.release();
37 }
38
39 // This is called directly from compiled code by an HDeoptimize.
artDeoptimizeFromCompiledCode(DeoptimizationKind kind,Thread * self)40 extern "C" Context* artDeoptimizeFromCompiledCode(DeoptimizationKind kind, Thread* self)
41 REQUIRES_SHARED(Locks::mutator_lock_) {
42 ScopedQuickEntrypointChecks sqec(self);
43 // Before deoptimizing to interpreter, we must push the deoptimization context.
44 JValue return_value;
45 return_value.SetJ(0); // we never deoptimize from compiled code with an invoke result.
46 self->PushDeoptimizationContext(return_value,
47 /* is_reference= */ false,
48 self->GetException(),
49 /* from_code= */ true,
50 DeoptimizationMethodType::kDefault);
51 // Deopting from compiled code, so method exit haven't run yet. Don't skip method exit callbacks
52 // if required.
53 std::unique_ptr<Context> context = self->Deoptimize(kind,
54 /*single_frame=*/ true,
55 /* skip_method_exit_callbacks= */ false);
56 DCHECK(context != nullptr);
57 return context.release();
58 }
59
60 } // namespace art
61