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      1 /*
      2  * Copyright (C) 2014 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 #ifndef ART_RUNTIME_RUNTIME_INL_H_
     18 #define ART_RUNTIME_RUNTIME_INL_H_
     19 
     20 #include "runtime.h"
     21 
     22 #include "arch/instruction_set.h"
     23 #include "art_method.h"
     24 #include "base/callee_save_type.h"
     25 #include "base/casts.h"
     26 #include "base/mutex.h"
     27 #include "entrypoints/quick/callee_save_frame.h"
     28 #include "gc_root-inl.h"
     29 #include "interpreter/mterp/mterp.h"
     30 #include "obj_ptr-inl.h"
     31 #include "thread_list.h"
     32 
     33 namespace art {
     34 
     35 inline bool Runtime::IsClearedJniWeakGlobal(ObjPtr<mirror::Object> obj) {
     36   return obj == GetClearedJniWeakGlobal();
     37 }
     38 
     39 inline mirror::Object* Runtime::GetClearedJniWeakGlobal() {
     40   mirror::Object* obj = sentinel_.Read();
     41   DCHECK(obj != nullptr);
     42   return obj;
     43 }
     44 
     45 inline QuickMethodFrameInfo Runtime::GetRuntimeMethodFrameInfo(ArtMethod* method) {
     46   DCHECK(method != nullptr);
     47   DCHECK_EQ(instruction_set_, kRuntimeISA);
     48   // Cannot be imt-conflict-method or resolution-method.
     49   DCHECK_NE(method, GetImtConflictMethod());
     50   DCHECK_NE(method, GetResolutionMethod());
     51   // Don't use GetCalleeSaveMethod(), some tests don't set all callee save methods.
     52   if (method == GetCalleeSaveMethodUnchecked(CalleeSaveType::kSaveRefsAndArgs)) {
     53     return RuntimeCalleeSaveFrame::GetMethodFrameInfo(CalleeSaveType::kSaveRefsAndArgs);
     54   } else if (method == GetCalleeSaveMethodUnchecked(CalleeSaveType::kSaveAllCalleeSaves)) {
     55     return RuntimeCalleeSaveFrame::GetMethodFrameInfo(CalleeSaveType::kSaveAllCalleeSaves);
     56   } else if (method == GetCalleeSaveMethodUnchecked(CalleeSaveType::kSaveRefsOnly)) {
     57     return RuntimeCalleeSaveFrame::GetMethodFrameInfo(CalleeSaveType::kSaveRefsOnly);
     58   } else {
     59     DCHECK(method == GetCalleeSaveMethodUnchecked(CalleeSaveType::kSaveEverything) ||
     60            method == GetCalleeSaveMethodUnchecked(CalleeSaveType::kSaveEverythingForClinit) ||
     61            method == GetCalleeSaveMethodUnchecked(CalleeSaveType::kSaveEverythingForSuspendCheck));
     62     return RuntimeCalleeSaveFrame::GetMethodFrameInfo(CalleeSaveType::kSaveEverything);
     63   }
     64 }
     65 
     66 inline ArtMethod* Runtime::GetResolutionMethod() {
     67   CHECK(HasResolutionMethod());
     68   return resolution_method_;
     69 }
     70 
     71 inline ArtMethod* Runtime::GetImtConflictMethod() {
     72   CHECK(HasImtConflictMethod());
     73   return imt_conflict_method_;
     74 }
     75 
     76 inline ArtMethod* Runtime::GetImtUnimplementedMethod() {
     77   CHECK(imt_unimplemented_method_ != nullptr);
     78   return imt_unimplemented_method_;
     79 }
     80 
     81 inline ArtMethod* Runtime::GetCalleeSaveMethod(CalleeSaveType type)
     82     REQUIRES_SHARED(Locks::mutator_lock_) {
     83   DCHECK(HasCalleeSaveMethod(type));
     84   return GetCalleeSaveMethodUnchecked(type);
     85 }
     86 
     87 inline ArtMethod* Runtime::GetCalleeSaveMethodUnchecked(CalleeSaveType type)
     88     REQUIRES_SHARED(Locks::mutator_lock_) {
     89   return reinterpret_cast64<ArtMethod*>(callee_save_methods_[static_cast<size_t>(type)]);
     90 }
     91 
     92 template<typename Action>
     93 void Runtime::DoAndMaybeSwitchInterpreter(Action lamda) {
     94   MutexLock tll_mu(Thread::Current(), *Locks::thread_list_lock_);
     95   lamda();
     96   Runtime::Current()->GetThreadList()->ForEach([](Thread* thread, void*) {
     97       thread->tls32_.use_mterp.store(interpreter::CanUseMterp());
     98   }, nullptr);
     99 }
    100 
    101 }  // namespace art
    102 
    103 #endif  // ART_RUNTIME_RUNTIME_INL_H_
    104