1 /* 2 * Copyright (C) 2014 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_OAT_OAT_FILE_INL_H_ 18 #define ART_RUNTIME_OAT_OAT_FILE_INL_H_ 19 20 #include "oat_file.h" 21 22 #include "base/utils.h" 23 #include "oat_quick_method_header.h" 24 #include "runtime-inl.h" 25 26 namespace art HIDDEN { 27 GetOatQuickMethodHeader()28inline const OatQuickMethodHeader* OatFile::OatMethod::GetOatQuickMethodHeader() const { 29 const void* code = EntryPointToCodePointer(GetQuickCode()); 30 if (code == nullptr) { 31 return nullptr; 32 } 33 // Return a pointer to the packed struct before the code. 34 return reinterpret_cast<const OatQuickMethodHeader*>(code) - 1; 35 } 36 GetOatQuickMethodHeaderOffset()37inline uint32_t OatFile::OatMethod::GetOatQuickMethodHeaderOffset() const { 38 const OatQuickMethodHeader* method_header = GetOatQuickMethodHeader(); 39 if (method_header == nullptr) { 40 return 0u; 41 } 42 return reinterpret_cast<const uint8_t*>(method_header) - begin_; 43 } 44 GetFrameSizeInBytes()45inline size_t OatFile::OatMethod::GetFrameSizeInBytes() const { 46 const void* code = EntryPointToCodePointer(GetQuickCode()); 47 if (code == nullptr) { 48 return 0u; 49 } 50 return reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].GetFrameInfo().FrameSizeInBytes(); 51 } 52 GetCoreSpillMask()53inline uint32_t OatFile::OatMethod::GetCoreSpillMask() const { 54 const void* code = EntryPointToCodePointer(GetQuickCode()); 55 if (code == nullptr) { 56 return 0u; 57 } 58 return reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].GetFrameInfo().CoreSpillMask(); 59 } 60 GetFpSpillMask()61inline uint32_t OatFile::OatMethod::GetFpSpillMask() const { 62 const void* code = EntryPointToCodePointer(GetQuickCode()); 63 if (code == nullptr) { 64 return 0u; 65 } 66 return reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].GetFrameInfo().FpSpillMask(); 67 } 68 GetVmapTableOffset()69inline uint32_t OatFile::OatMethod::GetVmapTableOffset() const { 70 const uint8_t* vmap_table = GetVmapTable(); 71 return static_cast<uint32_t>(vmap_table != nullptr ? vmap_table - begin_ : 0u); 72 } 73 GetVmapTable()74inline const uint8_t* OatFile::OatMethod::GetVmapTable() const { 75 const void* code = EntryPointToCodePointer(GetQuickCode()); 76 if (code == nullptr) { 77 return nullptr; 78 } 79 uint32_t offset = reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].GetCodeInfoOffset(); 80 if (UNLIKELY(offset == 0u)) { 81 return nullptr; 82 } 83 return reinterpret_cast<const uint8_t*>(code) - offset; 84 } 85 GetQuickCodeSize()86inline uint32_t OatFile::OatMethod::GetQuickCodeSize() const { 87 const void* code = EntryPointToCodePointer(GetQuickCode()); 88 if (code == nullptr) { 89 return 0u; 90 } 91 return reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].GetCodeSize(); 92 } 93 GetQuickCode()94inline const void* OatFile::OatMethod::GetQuickCode() const { 95 if (code_offset_ == 0) { 96 return nullptr; 97 } 98 return reinterpret_cast<const void *>(begin_ + code_offset_); 99 } 100 FindBcpMappingInfo(const DexFile * dex_file)101inline const OatFile::BssMappingInfo* OatFile::FindBcpMappingInfo(const DexFile* dex_file) const { 102 ArrayRef<const OatFile::BssMappingInfo> mapping_info_vector(GetBcpBssInfo()); 103 ArrayRef<const DexFile* const> bcp_dexfiles( 104 Runtime::Current()->GetClassLinker()->GetBootClassPath()); 105 // Create a sub array to limit search range. 106 bcp_dexfiles = bcp_dexfiles.SubArray(/*pos=*/ 0u, mapping_info_vector.size()); 107 auto it = std::find(bcp_dexfiles.begin(), bcp_dexfiles.end(), dex_file); 108 if (it != bcp_dexfiles.end()) { 109 return &mapping_info_vector[std::distance(bcp_dexfiles.begin(), it)]; 110 } else { 111 return nullptr; 112 } 113 } 114 115 } // namespace art 116 117 #endif // ART_RUNTIME_OAT_OAT_FILE_INL_H_ 118