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      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_FILE_INL_H_
     18 #define ART_RUNTIME_OAT_FILE_INL_H_
     19 
     20 #include "oat_file.h"
     21 
     22 #include "base/utils.h"
     23 #include "oat_quick_method_header.h"
     24 
     25 namespace art {
     26 
     27 inline const OatQuickMethodHeader* OatFile::OatMethod::GetOatQuickMethodHeader() const {
     28   const void* code = EntryPointToCodePointer(GetOatPointer<const void*>(code_offset_));
     29   if (code == nullptr) {
     30     return nullptr;
     31   }
     32   // Return a pointer to the packed struct before the code.
     33   return reinterpret_cast<const OatQuickMethodHeader*>(code) - 1;
     34 }
     35 
     36 inline uint32_t OatFile::OatMethod::GetOatQuickMethodHeaderOffset() const {
     37   const OatQuickMethodHeader* method_header = GetOatQuickMethodHeader();
     38   if (method_header == nullptr) {
     39     return 0u;
     40   }
     41   return reinterpret_cast<const uint8_t*>(method_header) - begin_;
     42 }
     43 
     44 inline uint32_t OatFile::OatMethod::GetQuickCodeSizeOffset() const {
     45   const OatQuickMethodHeader* method_header = GetOatQuickMethodHeader();
     46   if (method_header == nullptr) {
     47     return 0u;
     48   }
     49   return reinterpret_cast<const uint8_t*>(method_header->GetCodeSizeAddr()) - begin_;
     50 }
     51 
     52 inline size_t OatFile::OatMethod::GetFrameSizeInBytes() const {
     53   const void* code = EntryPointToCodePointer(GetQuickCode());
     54   if (code == nullptr) {
     55     return 0u;
     56   }
     57   return reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].GetFrameInfo().FrameSizeInBytes();
     58 }
     59 
     60 inline uint32_t OatFile::OatMethod::GetCoreSpillMask() const {
     61   const void* code = EntryPointToCodePointer(GetQuickCode());
     62   if (code == nullptr) {
     63     return 0u;
     64   }
     65   return reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].GetFrameInfo().CoreSpillMask();
     66 }
     67 
     68 inline uint32_t OatFile::OatMethod::GetFpSpillMask() const {
     69   const void* code = EntryPointToCodePointer(GetQuickCode());
     70   if (code == nullptr) {
     71     return 0u;
     72   }
     73   return reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].GetFrameInfo().FpSpillMask();
     74 }
     75 
     76 inline uint32_t OatFile::OatMethod::GetVmapTableOffset() const {
     77   const uint8_t* vmap_table = GetVmapTable();
     78   return static_cast<uint32_t>(vmap_table != nullptr ? vmap_table - begin_ : 0u);
     79 }
     80 
     81 inline uint32_t OatFile::OatMethod::GetVmapTableOffsetOffset() const {
     82   const OatQuickMethodHeader* method_header = GetOatQuickMethodHeader();
     83   if (method_header == nullptr) {
     84     return 0u;
     85   }
     86   return reinterpret_cast<const uint8_t*>(method_header->GetVmapTableOffsetAddr()) - begin_;
     87 }
     88 
     89 inline const uint8_t* OatFile::OatMethod::GetVmapTable() const {
     90   const void* code = EntryPointToCodePointer(GetOatPointer<const void*>(code_offset_));
     91   if (code == nullptr) {
     92     return nullptr;
     93   }
     94   uint32_t offset = reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].GetVmapTableOffset();
     95   if (UNLIKELY(offset == 0u)) {
     96     return nullptr;
     97   }
     98   return reinterpret_cast<const uint8_t*>(code) - offset;
     99 }
    100 
    101 inline uint32_t OatFile::OatMethod::GetQuickCodeSize() const {
    102   const void* code = EntryPointToCodePointer(GetOatPointer<const void*>(code_offset_));
    103   if (code == nullptr) {
    104     return 0u;
    105   }
    106   return reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].GetCodeSize();
    107 }
    108 
    109 inline uint32_t OatFile::OatMethod::GetCodeOffset() const {
    110   return (GetQuickCodeSize() == 0) ? 0 : code_offset_;
    111 }
    112 
    113 inline const void* OatFile::OatMethod::GetQuickCode() const {
    114   return GetOatPointer<const void*>(GetCodeOffset());
    115 }
    116 
    117 }  // namespace art
    118 
    119 #endif  // ART_RUNTIME_OAT_FILE_INL_H_
    120