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 } // namespace mirror 38 39 class ArtMethod; 40 template<class MirrorType> class GcRoot; 41 template<class MirrorType> class StackReference; 42 class Thread; 43 44 // Pointers to functions that are called by quick compiler generated code via thread-local storage. 45 struct PACKED(4) QuickEntryPoints { 46 #define ENTRYPOINT_ENUM(name, rettype, ...) rettype ( * p ## name )( __VA_ARGS__ ); 47 #include "quick_entrypoints_list.h" 48 QUICK_ENTRYPOINT_LIST(ENTRYPOINT_ENUM) 49 #undef QUICK_ENTRYPOINT_LIST 50 #undef ENTRYPOINT_ENUM 51 }; 52 53 54 // JNI entrypoints. 55 // TODO: NO_THREAD_SAFETY_ANALYSIS due to different control paths depending on fast JNI. 56 extern uint32_t JniMethodStart(Thread* self) NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 57 extern uint32_t JniMethodFastStart(Thread* self) NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 58 extern uint32_t JniMethodStartSynchronized(jobject to_lock, Thread* self) 59 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 60 extern void JniMethodEnd(uint32_t saved_local_ref_cookie, Thread* self) 61 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 62 extern void JniMethodFastEnd(uint32_t saved_local_ref_cookie, Thread* self) 63 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 64 extern void JniMethodEndSynchronized(uint32_t saved_local_ref_cookie, jobject locked, 65 Thread* self) 66 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 67 extern mirror::Object* JniMethodEndWithReference(jobject result, uint32_t saved_local_ref_cookie, 68 Thread* self) 69 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 70 extern mirror::Object* JniMethodFastEndWithReference(jobject result, 71 uint32_t saved_local_ref_cookie, 72 Thread* self) 73 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 74 75 76 extern mirror::Object* JniMethodEndWithReferenceSynchronized(jobject result, 77 uint32_t saved_local_ref_cookie, 78 jobject locked, Thread* self) 79 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 80 81 extern void ReadBarrierJni(mirror::CompressedReference<mirror::Object>* handle_on_stack, 82 Thread* self) 83 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 84 85 86 // Read barrier entrypoints. 87 // 88 // Compilers for ARM, ARM64, MIPS, MIPS64 can insert a call to these 89 // functions directly. For x86 and x86-64, compilers need a wrapper 90 // assembly function, to handle mismatch in ABI. 91 92 // Mark the heap reference `obj`. This entry point is used by read 93 // barrier fast path implementations generated by the compiler to mark 94 // an object that is referenced by a field of a gray object. 95 extern "C" mirror::Object* artReadBarrierMark(mirror::Object* obj) 96 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 97 98 // Read barrier entrypoint for heap references. 99 // This is the read barrier slow path for instance and static fields 100 // and reference type arrays. 101 extern "C" mirror::Object* artReadBarrierSlow(mirror::Object* ref, 102 mirror::Object* obj, 103 uint32_t offset) 104 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 105 106 // Read barrier entrypoint for GC roots. 107 extern "C" mirror::Object* artReadBarrierForRootSlow(GcRoot<mirror::Object>* root) 108 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 109 110 } // namespace art 111 112 #endif // ART_RUNTIME_ENTRYPOINTS_QUICK_QUICK_ENTRYPOINTS_H_ 113