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