1 /*
2 * Copyright (C) 2017 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 "jni.h"
18
19 #include "art_method.h"
20 #include "class_linker.h"
21 #include "mirror/class-inl.h"
22 #include "mirror/dex_cache.h"
23 #include "mirror/executable.h"
24 #include "mirror/object-inl.h"
25 #include "obj_ptr.h"
26 #include "oat_file.h"
27 #include "runtime.h"
28 #include "scoped_thread_state_change-inl.h"
29 #include "thread.h"
30
31 namespace art {
32 namespace {
33
Java_Main_getOatMethodQuickCode(JNIEnv * env,jclass,jobject method)34 extern "C" JNIEXPORT jlong JNICALL Java_Main_getOatMethodQuickCode(JNIEnv* env,
35 jclass,
36 jobject method) {
37 CHECK(method != nullptr);
38 ScopedObjectAccess soa(env);
39 ObjPtr<mirror::Executable> exec = soa.Decode<mirror::Executable>(method);
40 ArtMethod* art_method = exec->GetArtMethod();
41
42 const void* quick_code =
43 art_method->GetOatMethodQuickCode(Runtime::Current()->GetClassLinker()->GetImagePointerSize());
44
45 return static_cast<jlong>(reinterpret_cast<uintptr_t>(quick_code));
46 }
47
Java_Main_hasOatCompiledCode(JNIEnv * env,jclass,jclass kls)48 extern "C" JNIEXPORT jboolean JNICALL Java_Main_hasOatCompiledCode(JNIEnv* env,
49 jclass,
50 jclass kls) {
51 CHECK(kls != nullptr);
52 ScopedObjectAccess soa(env);
53 Thread* self = Thread::Current();
54
55 ObjPtr<mirror::Class> klass_ptr = self->DecodeJObject(kls)->AsClass();
56
57 bool found = false;
58 OatFile::OatClass oat_class = OatFile::FindOatClass(*klass_ptr->GetDexCache()->GetDexFile(),
59 klass_ptr->GetDexClassDefIndex(),
60 /* out */ &found);
61
62 if (!found) {
63 return false;
64 }
65
66 OatClassType type = oat_class.GetType();
67 switch (type) {
68 case kOatClassAllCompiled:
69 case kOatClassSomeCompiled:
70 return true;
71
72 case kOatClassNoneCompiled:
73 case kOatClassMax:
74 return false;
75 }
76
77 LOG(FATAL) << "unhandled switch statement";
78 UNREACHABLE();
79 }
80
81 } // namespace
82 } // namespace art
83