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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_BITS_HXX
     18 #define ELF_SECTION_BITS_HXX
     19 
     20 #include "utils/flush_cpu_cache.h"
     21 #include "utils/helper.h"
     22 
     23 #include <llvm/Support/raw_ostream.h>
     24 
     25 #ifndef USE_MINGW       /* TODO create a proper HAVE_MMAN_H */
     26 #include <sys/mman.h>
     27 #else
     28 #include "mmanWindows.h"
     29 #endif
     30 
     31 template <unsigned Bitwidth>
     32 inline void ELFSectionBits<Bitwidth>::print() const {
     33   using namespace llvm;
     34 
     35   char const *section_type_str =
     36     (sh->getType() == SHT_NOBITS) ? "NOBITS" : "PROGBITS";
     37 
     38   out() << '\n' << fillformat('=', 79) << '\n';
     39   out().changeColor(raw_ostream::WHITE, true);
     40   out() << "ELF " << section_type_str << ": " << sh->getName() << '\n';
     41   out().resetColor();
     42   out() << fillformat('-', 79) << '\n';
     43 
     44   out() << "  Size         : " << sh->getSize() << '\n';
     45   out() << "  Start Address: " << (void *)chunk.getBuffer() << '\n';
     46   out() << fillformat('-', 79) << '\n';
     47 
     48   chunk.print();
     49 
     50   out() << fillformat('=', 79) << '\n';
     51 }
     52 
     53 template <unsigned Bitwidth>
     54 inline bool ELFSectionBits<Bitwidth>::protect() {
     55   int prot = PROT_READ;
     56 
     57   if (sh->getFlags() & SHF_WRITE) {
     58     prot |= PROT_WRITE;
     59   }
     60 
     61   if (sh->getFlags() & SHF_EXECINSTR) {
     62     prot |= PROT_EXEC;
     63   }
     64 
     65   return chunk.protect(prot);
     66 }
     67 
     68 #endif // ELF_SECTION_BITS_HXX
     69