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 "offsets.h" 25 26#define QUICK_ENTRYPOINT_OFFSET(ptr_size, x) \ 27 Thread::QuickEntryPointOffset<ptr_size>(OFFSETOF_MEMBER(QuickEntryPoints, x)) 28 29namespace art { 30 31namespace mirror { 32class Array; 33class Class; 34template<class MirrorType> class CompressedReference; 35class Object; 36} // namespace mirror 37 38class ArtMethod; 39template<class MirrorType> class GcRoot; 40class Thread; 41 42// Pointers to functions that are called by quick compiler generated code via thread-local storage. 43struct PACKED(4) QuickEntryPoints { 44#define ENTRYPOINT_ENUM(name, rettype, ...) rettype ( * p ## name )( __VA_ARGS__ ); 45#include "quick_entrypoints_list.h" 46 QUICK_ENTRYPOINT_LIST(ENTRYPOINT_ENUM) 47#undef QUICK_ENTRYPOINT_LIST 48#undef ENTRYPOINT_ENUM 49}; 50 51 52// JNI entrypoints. 53// TODO: NO_THREAD_SAFETY_ANALYSIS due to different control paths depending on fast JNI. 54extern uint32_t JniMethodStart(Thread* self) NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 55extern uint32_t JniMethodStartSynchronized(jobject to_lock, Thread* self) 56 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 57extern void JniMethodEnd(uint32_t saved_local_ref_cookie, Thread* self) 58 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 59extern void JniMethodEndSynchronized(uint32_t saved_local_ref_cookie, jobject locked, 60 Thread* self) 61 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 62extern mirror::Object* JniMethodEndWithReference(jobject result, uint32_t saved_local_ref_cookie, 63 Thread* self) 64 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 65 66extern mirror::Object* JniMethodEndWithReferenceSynchronized(jobject result, 67 uint32_t saved_local_ref_cookie, 68 jobject locked, Thread* self) 69 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 70 71extern void ReadBarrierJni(mirror::CompressedReference<mirror::Object>* handle_on_stack, 72 Thread* self) 73 NO_THREAD_SAFETY_ANALYSIS HOT_ATTR; 74 75 76// Read barrier entrypoints. 77// 78// Compilers for ARM, ARM64, MIPS, MIPS64 can insert a call to these 79// functions directly. For x86 and x86-64, compilers need a wrapper 80// assembly function, to handle mismatch in ABI. 81 82// Mark the heap reference `obj`. This entry point is used by read 83// barrier fast path implementations generated by the compiler to mark 84// an object that is referenced by a field of a gray object. 85extern "C" mirror::Object* artReadBarrierMark(mirror::Object* obj) 86 SHARED_REQUIRES(Locks::mutator_lock_) HOT_ATTR; 87 88// Read barrier entrypoint for heap references. 89// This is the read barrier slow path for instance and static fields 90// and reference type arrays. 91extern "C" mirror::Object* artReadBarrierSlow(mirror::Object* ref, 92 mirror::Object* obj, 93 uint32_t offset) 94 SHARED_REQUIRES(Locks::mutator_lock_) HOT_ATTR; 95 96// Read barrier entrypoint for GC roots. 97extern "C" mirror::Object* artReadBarrierForRootSlow(GcRoot<mirror::Object>* root) 98 SHARED_REQUIRES(Locks::mutator_lock_) HOT_ATTR; 99 100} // namespace art 101 102#endif // ART_RUNTIME_ENTRYPOINTS_QUICK_QUICK_ENTRYPOINTS_H_ 103