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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "callee_save_frame.h"
#include "jit/jit.h"
#include "runtime.h"
#include "thread-inl.h"
namespace art {
extern "C" void artDeoptimizeIfNeeded(Thread* self, uintptr_t result, bool is_ref)
REQUIRES_SHARED(Locks::mutator_lock_) {
instrumentation::Instrumentation* instr = Runtime::Current()->GetInstrumentation();
DCHECK(!self->IsExceptionPending());
ArtMethod** sp = self->GetManagedStack()->GetTopQuickFrame();
DCHECK(sp != nullptr && (*sp)->IsRuntimeMethod());
DeoptimizationMethodType type = instr->GetDeoptimizationMethodType(*sp);
JValue jvalue;
jvalue.SetJ(result);
instr->DeoptimizeIfNeeded(self, sp, type, jvalue, is_ref);
}
extern "C" void artTestSuspendFromCode(Thread* self) REQUIRES_SHARED(Locks::mutator_lock_) {
// Called when there is a pending checkpoint or suspend request.
ScopedQuickEntrypointChecks sqec(self);
self->CheckSuspend();
// We could have other dex instructions at the same dex pc as suspend and we need to execute
// those instructions. So we should start executing from the current dex pc.
ArtMethod** sp = self->GetManagedStack()->GetTopQuickFrame();
JValue result;
result.SetJ(0);
Runtime::Current()->GetInstrumentation()->DeoptimizeIfNeeded(
self, sp, DeoptimizationMethodType::kKeepDexPc, result, /* is_ref= */ false);
}
extern "C" void artImplicitSuspendFromCode(Thread* self) REQUIRES_SHARED(Locks::mutator_lock_) {
// Called when there is a pending checkpoint or suspend request.
ScopedQuickEntrypointChecks sqec(self);
self->CheckSuspend(/*implicit=*/ true);
// We could have other dex instructions at the same dex pc as suspend and we need to execute
// those instructions. So we should start executing from the current dex pc.
ArtMethod** sp = self->GetManagedStack()->GetTopQuickFrame();
JValue result;
result.SetJ(0);
Runtime::Current()->GetInstrumentation()->DeoptimizeIfNeeded(
self, sp, DeoptimizationMethodType::kKeepDexPc, result, /* is_ref= */ false);
}
extern "C" void artCompileOptimized(ArtMethod* method, Thread* self)
REQUIRES_SHARED(Locks::mutator_lock_) {
ScopedQuickEntrypointChecks sqec(self);
// It is important this method is not suspended due to:
// * It is called on entry, and object parameters are in locations that are
// not marked in the stack map.
// * Async deoptimization does not expect runtime methods other than the
// suspend entrypoint before executing the first instruction of a Java
// method.
ScopedAssertNoThreadSuspension sants("Enqueuing optimized compilation");
Runtime::Current()->GetJit()->EnqueueOptimizedCompilation(method, self);
}
} // namespace art
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