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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_STR_TAB_HXX
     18 #define ELF_SECTION_STR_TAB_HXX
     19 
     20 #include "utils/helper.h"
     21 #include "utils/raw_ostream.h"
     22 
     23 #include <llvm/ADT/OwningPtr.h>
     24 #include <llvm/Support/Format.h>
     25 #include <llvm/Support/raw_ostream.h>
     26 
     27 template <unsigned Bitwidth>
     28 template <typename Archiver>
     29 ELFSectionStrTab<Bitwidth> *
     30 ELFSectionStrTab<Bitwidth>::read(Archiver &AR,
     31                                  ELFSectionHeaderTy const *sh) {
     32 
     33   llvm::OwningPtr<ELFSectionStrTab> st(new ELFSectionStrTab());
     34   st->buf.resize(sh->getSize());
     35 
     36   // Save section_header
     37   st->section_header = sh;
     38 
     39   AR.seek(sh->getOffset(), true);
     40   AR.prologue(sh->getSize());
     41   AR.readBytes(&*st->buf.begin(), sh->getSize());
     42   AR.epilogue(sh->getSize());
     43 
     44   if (!AR) {
     45     // Unable to read the string table.
     46     return 0;
     47   }
     48 
     49   return st.take();
     50 }
     51 
     52 template <unsigned Bitwidth>
     53 void ELFSectionStrTab<Bitwidth>::print() const {
     54   using namespace llvm;
     55 
     56   out() << '\n' << fillformat('=', 79) << '\n';
     57   out().changeColor(raw_ostream::WHITE, true);
     58   out() << "ELF String Table: " << this->section_header->getName() << '\n';
     59   out().resetColor();
     60   out() << fillformat('-', 79) << '\n';
     61 
     62   dump_hex((unsigned char const *)&*buf.begin(), buf.size(), 0, buf.size());
     63 
     64   out() << fillformat('=', 79) << '\n';
     65 }
     66 
     67 #endif // ELF_SECTION_STR_TAB_HXX
     68