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      1 /*
      2  * Copyright 2011, 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 ELF_SECTION_PROGBITS_H
     18 #define ELF_SECTION_PROGBITS_H
     19 
     20 #include "ELFTypes.h"
     21 #include "ELFSectionBits.h"
     22 #include "ELFSectionHeader.h"
     23 #include "MemChunk.h"
     24 #include "StubLayout.h"
     25 
     26 template <unsigned Bitwidth>
     27 class ELFSectionProgBits : public ELFSectionBits<Bitwidth> {
     28 public:
     29   ELF_TYPE_INTRO_TO_TEMPLATE_SCOPE(Bitwidth);
     30 
     31 private:
     32   StubLayout *stubs;
     33 
     34 public:
     35   template <typename Archiver>
     36   static ELFSectionProgBits *read(Archiver &AR,
     37                                   ELFObjectTy *owner,
     38                                   ELFSectionHeaderTy const *sh);
     39 
     40   StubLayout *getStubLayout() {
     41     return stubs;
     42   }
     43 
     44   ELFSectionProgBits(int machine) {
     45     switch(machine) {
     46     case EM_ARM:
     47         stubs = new StubLayoutARM();
     48       break;
     49 
     50     case EM_MIPS:
     51         stubs = new StubLayoutMIPS();
     52       break;
     53 
     54     default:
     55         stubs = NULL;
     56     }
     57   }
     58 
     59   ~ELFSectionProgBits() {
     60     if (stubs)
     61       delete stubs;
     62   }
     63 
     64 private:
     65   template <typename Archiver>
     66   bool serialize(Archiver &AR) {
     67     ELFSectionHeaderTy const *sh = this->sh;
     68     MemChunk &chunk = this->chunk;
     69 
     70     AR.seek(sh->getOffset(), true);
     71     AR.prologue(sh->getSize());
     72     AR.readBytes(chunk.getBuffer(), sh->getSize());
     73     AR.epilogue(sh->getSize());
     74 
     75     return AR;
     76   }
     77 };
     78 
     79 #include "impl/ELFSectionProgBits.hxx"
     80 
     81 #endif // ELF_SECTION_PROGBITS_H
     82