Add support for Linux memory mapping stream and remove ELF header usage

src/processor/exploitability_linux.h

 // Copyright (c) 2013 Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 25 matching lines @@
 
 #ifndef GOOGLE_BREAKPAD_PROCESSOR_EXPLOITABILITY_LINUX_H_
 #define GOOGLE_BREAKPAD_PROCESSOR_EXPLOITABILITY_LINUX_H_
 
 #include "common/scoped_ptr.h"
 #include "google_breakpad/common/breakpad_types.h"
 #include "google_breakpad/processor/exploitability.h"
 
 namespace google_breakpad {
 
-enum LinuxArchitectureType {
-  // A 32-bit Linux architecture.
-  LINUX_32_BIT,
-
-  // A 64-bit Linux architecture.
-  LINUX_64_BIT,
-
-  // Some other architecture that is not Linux.
-  UNSUPPORTED_ARCHITECTURE
-};
-
 class ExploitabilityLinux : public Exploitability {
  public:
   ExploitabilityLinux(Minidump *dump,
                       ProcessState *process_state);
 
   virtual ExploitabilityRating CheckPlatformExploitability();
 
  private:
   // This method takes the address of the instruction pointer and returns
   // whether the instruction pointer lies in a valid instruction region.
   bool InstructionPointerInCode(uint64_t instruction_ptr);
 
   // This method checks the exception that triggered the creation of the
   // minidump and reports whether the exception suggests no exploitability.
   bool BenignCrashTrigger(const MDRawExceptionStream *raw_exception_stream);
-
-  // Checks if the minidump architecture is 32-bit or 64-bit.
-  LinuxArchitectureType ArchitectureType();
-
-  // Loads ELF header data of the module present in the given memory
-  // region into the scoped pointer.
-  // This method takes a scoped pointer in which the ELF header data is
-  // loaded, the memory region containing the ELF header, and the base
-  // address of the ELF header.
-  template<typename T>
-  void LoadElfHeader(MinidumpMemoryRegion *memory,
-                     uint64_t base_address,
-                     T *header) {
-    for (size_t i = 0; i < sizeof(T); i++) {
-      uint8_t my_byte = 0;
-      memory->GetMemoryAtAddress(base_address + i, &my_byte);
-      *(reinterpret_cast<char *>(header) + i) = my_byte;
-    }
-  }
-
-  // Loads the Program Header Table of the module present in the given
-  // memory region into the scoped array.
-  // This method takes a scoped array in which the header table data is
-  // loaded, the memory region containing the table, the base address of
-  // the program header table, and the number of entries in the table.
-  template<typename T>
-  void LoadElfHeaderTable(MinidumpMemoryRegion *memory,
-                          uint64_t base_address,
-                          uint16_t e_phnum,
-                          T table[]) {
-    uint64_t offset = 0;
-    for (size_t i = 0; i < e_phnum; i++) {
-      T *entry = &table[i];
-      for (size_t j = 0; j < sizeof(T); j++) {
-        uint8_t my_byte = 0;
-        memory->GetMemoryAtAddress(base_address + offset++, &my_byte);
-        *(reinterpret_cast<char *>(entry) + j) = my_byte;
-      }
-    }
-  }
 };
 
 }  // namespace google_breakpad
 
 #endif  // GOOGLE_BREAKPAD_PROCESSOR_EXPLOITABILITY_LINUX_H_