1 /* 2 * Copyright (C) 2012 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_ENTRYPOINTS_QUICK_QUICK_ENTRYPOINTS_H_ 18 #define ART_RUNTIME_ENTRYPOINTS_QUICK_QUICK_ENTRYPOINTS_H_ 19 20 #include <jni.h> 21 22 #include "base/locks.h" 23 #include "base/macros.h" 24 #include "deoptimization_kind.h" 25 #include "offsets.h" 26 27 #define QUICK_ENTRYPOINT_OFFSET(ptr_size, x) \ 28 Thread::QuickEntryPointOffset<ptr_size>(OFFSETOF_MEMBER(QuickEntryPoints, x)) 29 30 namespace art HIDDEN { 31 32 namespace mirror { 33 class Array; 34 class Class; 35 template<class MirrorType> class CompressedReference; 36 class Object; 37 class String; 38 } // namespace mirror 39 40 class ArtMethod; 41 template<class MirrorType> class GcRoot; 42 template<class MirrorType> class StackReference; 43 class Thread; 44 45 // Pointers to functions that are called by quick compiler generated code via thread-local storage. 46 struct QuickEntryPoints { 47 #define ENTRYPOINT_ENUM(name, rettype, ...) \ 48 void* p##name; \ 49 void Set##name(rettype (*fn)(__VA_ARGS__)) { p##name = reinterpret_cast<void*>(fn); } 50 #include "quick_entrypoints_list.h" 51 QUICK_ENTRYPOINT_LIST(ENTRYPOINT_ENUM) 52 #undef QUICK_ENTRYPOINT_LIST 53 #undef ENTRYPOINT_ENUM 54 }; 55 56 57 // JNI entrypoints. 58 extern "C" void artJniMethodStart(Thread* self) UNLOCK_FUNCTION(Locks::mutator_lock_) HOT_ATTR; 59 extern "C" void artJniMethodEnd(Thread* self) SHARED_LOCK_FUNCTION(Locks::mutator_lock_) HOT_ATTR; 60 extern mirror::Object* JniDecodeReferenceResult(jobject result, Thread* self) 61 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 62 extern "C" void artJniReadBarrier(ArtMethod* method) 63 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 64 extern "C" void artJniUnlockObject(mirror::Object* locked, Thread* self) 65 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 66 67 // JNI entrypoints when monitoring entry/exit. 68 extern "C" void artJniMonitoredMethodStart(Thread* self) UNLOCK_FUNCTION(Locks::mutator_lock_); 69 extern "C" void artJniMonitoredMethodEnd(Thread* self) SHARED_LOCK_FUNCTION(Locks::mutator_lock_); 70 extern "C" void artJniMethodEntryHook(Thread* self); 71 72 // StringAppend pattern entrypoint. 73 extern "C" mirror::String* artStringBuilderAppend(uint32_t format, 74 const uint32_t* args, 75 Thread* self) 76 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 77 78 // Read barrier entrypoints. 79 // 80 // Compilers for ARM, ARM64 can insert a call to these 81 // functions directly. For x86 and x86-64, compilers need a wrapper 82 // assembly function, to handle mismatch in ABI. 83 84 // Mark the heap reference `obj`. This entry point is used by read 85 // barrier fast path implementations generated by the compiler to mark 86 // an object that is referenced by a field of a gray object. 87 extern "C" mirror::Object* artReadBarrierMark(mirror::Object* obj) 88 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 89 90 // Read barrier entrypoint for heap references. 91 // This is the read barrier slow path for instance and static fields 92 // and reference type arrays. 93 extern "C" mirror::Object* artReadBarrierSlow(mirror::Object* ref, 94 mirror::Object* obj, 95 uint32_t offset) 96 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 97 98 // Read barrier entrypoint for GC roots. 99 extern "C" mirror::Object* artReadBarrierForRootSlow(GcRoot<mirror::Object>* root) 100 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 101 102 } // namespace art 103 104 #endif // ART_RUNTIME_ENTRYPOINTS_QUICK_QUICK_ENTRYPOINTS_H_ 105