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/macros.h" 23 #include "base/mutex.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 class Thread; 42 43 // Pointers to functions that are called by quick compiler generated code via thread-local storage. 44 struct PACKED(4) QuickEntryPoints { 45 #define ENTRYPOINT_ENUM(name, rettype, ...) rettype ( * p ## name )( __VA_ARGS__ ); 46 #include "quick_entrypoints_list.h" 47 QUICK_ENTRYPOINT_LIST(ENTRYPOINT_ENUM) 48 #undef QUICK_ENTRYPOINT_LIST 49 #undef ENTRYPOINT_ENUM 50 }; 51 52 53 // JNI entrypoints. 54 // TODO: NO_THREAD_SAFETY_ANALYSIS due to different control paths depending on fast JNI. 55 extern uint32_t JniMethodStart(Thread* self) NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 56 extern uint32_t JniMethodFastStart(Thread* self) NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 57 extern uint32_t JniMethodStartSynchronized(jobject to_lock, Thread* self) 58 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 59 extern void JniMethodEnd(uint32_t saved_local_ref_cookie, Thread* self) 60 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 61 extern void JniMethodFastEnd(uint32_t saved_local_ref_cookie, Thread* self) 62 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 63 extern void JniMethodEndSynchronized(uint32_t saved_local_ref_cookie, jobject locked, 64 Thread* self) 65 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 66 extern mirror::Object* JniMethodEndWithReference(jobject result, uint32_t saved_local_ref_cookie, 67 Thread* self) 68 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 69 extern mirror::Object* JniMethodFastEndWithReference(jobject result, 70 uint32_t saved_local_ref_cookie, 71 Thread* self) 72 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 73 74 75 extern mirror::Object* JniMethodEndWithReferenceSynchronized(jobject result, 76 uint32_t saved_local_ref_cookie, 77 jobject locked, Thread* self) 78 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 79 80 extern void ReadBarrierJni(mirror::CompressedReference<mirror::Object>* handle_on_stack, 81 Thread* self) 82 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 83 84 85 // Read barrier entrypoints. 86 // 87 // Compilers for ARM, ARM64, MIPS, MIPS64 can insert a call to these 88 // functions directly. For x86 and x86-64, compilers need a wrapper 89 // assembly function, to handle mismatch in ABI. 90 91 // Mark the heap reference `obj`. This entry point is used by read 92 // barrier fast path implementations generated by the compiler to mark 93 // an object that is referenced by a field of a gray object. 94 extern "C" mirror::Object* artReadBarrierMark(mirror::Object* obj) 95 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 96 97 // Read barrier entrypoint for heap references. 98 // This is the read barrier slow path for instance and static fields 99 // and reference type arrays. 100 extern "C" mirror::Object* artReadBarrierSlow(mirror::Object* ref, 101 mirror::Object* obj, 102 uint32_t offset) 103 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 104 105 // Read barrier entrypoint for GC roots. 106 extern "C" mirror::Object* artReadBarrierForRootSlow(GcRoot<mirror::Object>* root) 107 REQUIRES_SHARED(Locks::mutator_lock_) HOT_ATTR; 108 109 } // namespace art 110 111 #endif // ART_RUNTIME_ENTRYPOINTS_QUICK_QUICK_ENTRYPOINTS_H_ 112