dex_file_to_method_inliner_map.cc revision e4a50ee34695a9d90cf03fbb1e8afd1e434f6ee1 
1/*
2 * Copyright (C) 2013 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 <algorithm>
18#include <utility>
19#include "thread.h"
20#include "thread-inl.h"
21#include "base/mutex.h"
22#include "base/mutex-inl.h"
23#include "base/logging.h"
24#include "driver/compiler_driver.h"
25#include "dex/quick/arm/arm_dex_file_method_inliner.h"
26#include "dex/quick/mips/mips_dex_file_method_inliner.h"
27#include "dex/quick/x86/x86_dex_file_method_inliner.h"
28
29#include "dex_file_to_method_inliner_map.h"
30
31namespace art {
32
33DexFileToMethodInlinerMap::DexFileToMethodInlinerMap(const CompilerDriver* compiler)
34    : compiler_(compiler),
35      mutex_("inline_helper_mutex") {
36}
37
38DexFileToMethodInlinerMap::~DexFileToMethodInlinerMap() {
39  for (auto& entry : inliners_) {
40    delete entry.second;
41  }
42}
43
44const DexFileMethodInliner& DexFileToMethodInlinerMap::GetMethodInliner(const DexFile* dex_file) {
45  Thread* self = Thread::Current();
46  {
47    ReaderMutexLock lock(self, mutex_);
48    auto it = inliners_.find(dex_file);
49    if (it != inliners_.end()) {
50      return *it->second;
51    }
52  }
53
54  WriterMutexLock lock(self, mutex_);
55  DexFileMethodInliner** inliner = &inliners_[dex_file];  // inserts new entry if not found
56  if (*inliner) {
57    return **inliner;
58  }
59  switch (compiler_->GetInstructionSet()) {
60    case kThumb2:
61      *inliner = new ArmDexFileMethodInliner;
62      break;
63    case kX86:
64      *inliner = new X86DexFileMethodInliner;
65      break;
66    case kMips:
67      *inliner = new MipsDexFileMethodInliner;
68      break;
69    default:
70      LOG(FATAL) << "Unexpected instruction set: " << compiler_->GetInstructionSet();
71  }
72  DCHECK(*inliner != nullptr);
73  // TODO: per-dex file locking for the intrinsics container filling.
74  (*inliner)->FindIntrinsics(dex_file);
75  return **inliner;
76}
77
78}  // namespace art
79