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 { 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 PACKED(4) QuickEntryPoints { 47 #define ENTRYPOINT_ENUM(name, rettype, ...) rettype ( * p ## name )( __VA_ARGS__ ); 48 #include "quick_entrypoints_list.h" 49 QUICK_ENTRYPOINT_LIST(ENTRYPOINT_ENUM) 50 #undef QUICK_ENTRYPOINT_LIST 51 #undef ENTRYPOINT_ENUM 52 }; 53 54 55 // JNI entrypoints. 56 // TODO: NO_THREAD_SAFETY_ANALYSIS due to different control paths depending on fast JNI. 57 extern uint32_t JniMethodStart(Thread* self) NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 58 extern uint32_t JniMethodFastStart(Thread* self) NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 59 extern uint32_t JniMethodStartSynchronized(jobject to_lock, Thread* self) 60 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 61 extern void JniMethodEnd(uint32_t saved_local_ref_cookie, Thread* self) 62 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 63 extern void JniMethodFastEnd(uint32_t saved_local_ref_cookie, Thread* self) 64 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 65 extern void JniMethodEndSynchronized(uint32_t saved_local_ref_cookie, jobject locked, 66 Thread* self) 67 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 68 extern mirror::Object* JniMethodEndWithReference(jobject result, uint32_t saved_local_ref_cookie, 69 Thread* self) 70 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 71 extern mirror::Object* JniMethodFastEndWithReference(jobject result, 72 uint32_t saved_local_ref_cookie, 73 Thread* self) 74 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 75 76 77 extern mirror::Object* JniMethodEndWithReferenceSynchronized(jobject result, 78 uint32_t saved_local_ref_cookie, 79 jobject locked, Thread* self) 80 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 81 82 extern "C" mirror::String* artStringBuilderAppend(uint32_t format, 83 const uint32_t* args, 84 Thread* self) 85 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 86 87 extern void ReadBarrierJni(mirror::CompressedReference<mirror::Object>* handle_on_stack, 88 Thread* self) 89 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 90 91 92 // Read barrier entrypoints. 93 // 94 // Compilers for ARM, ARM64 can insert a call to these 95 // functions directly. For x86 and x86-64, compilers need a wrapper 96 // assembly function, to handle mismatch in ABI. 97 98 // Mark the heap reference `obj`. This entry point is used by read 99 // barrier fast path implementations generated by the compiler to mark 100 // an object that is referenced by a field of a gray object. 101 extern "C" mirror::Object* artReadBarrierMark(mirror::Object* obj) 102 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 103 104 // Read barrier entrypoint for heap references. 105 // This is the read barrier slow path for instance and static fields 106 // and reference type arrays. 107 extern "C" mirror::Object* artReadBarrierSlow(mirror::Object* ref, 108 mirror::Object* obj, 109 uint32_t offset) 110 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 111 112 // Read barrier entrypoint for GC roots. 113 extern "C" mirror::Object* artReadBarrierForRootSlow(GcRoot<mirror::Object>* root) 114 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 115 116 } // namespace art 117 118 #endif // ART_RUNTIME_ENTRYPOINTS_QUICK_QUICK_ENTRYPOINTS_H_ 119