1 /*
2  * Copyright (C) 2024 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 "berberis/base/large_mmap.h"
18 #include "berberis/base/macros.h"
19 #include "berberis/base/tracing.h"
20 #include "berberis/guest_os_primitives/guest_map_shadow.h"
21 #include "berberis/guest_os_primitives/guest_thread_manager.h"
22 #include "berberis/guest_state/guest_addr.h"
23 #include "berberis/runtime/init_guest_arch.h"
24 #include "berberis/runtime/translator.h"
25 #include "berberis/runtime_primitives/crash_reporter.h"
26 #include "berberis/runtime_primitives/guest_function_wrapper_impl.h"
27 #include "berberis/runtime_primitives/translation_cache.h"
28 
29 namespace berberis {
30 
31 namespace {
32 
IsAddressGuestExecutable(GuestAddr pc)33 bool IsAddressGuestExecutable(GuestAddr pc) {
34   return GuestMapShadow::GetInstance()->IsExecutable(pc, 1);
35 }
36 
InitBerberisUnsafe()37 bool InitBerberisUnsafe() {
38   InitLargeMmap();
39   InitHostEntries();
40   Tracing::Init();
41   InitGuestThreadManager();
42   InitGuestFunctionWrapper(&IsAddressGuestExecutable);
43   InitTranslator();
44   InitCrashReporter();
45   InitGuestArch();
46   return true;
47 }
48 
49 }  // namespace
50 
InitBerberis()51 void InitBerberis() {
52   // C++11 guarantees this is called only once and is thread-safe.
53   static bool initialized = InitBerberisUnsafe();
54   UNUSED(initialized);
55 }
56 
PreZygoteForkUnsafe()57 void PreZygoteForkUnsafe() {
58   TranslationCache::GetInstance()->PreZygoteForkUnsafe();
59 }
60 
61 }  // namespace berberis
62