Class: Elf::SunW::Capabilities

Inherits:
Elf::Section show all
Defined in:
lib/elf/sunw.rb

Defined Under Namespace

Modules: Hardware1 Classes: Software1, Tag

Constant Summary

Constants inherited from Elf::Section

Elf::Section::Abs, Elf::Section::Common, Elf::Section::FlagsToChars, Elf::Section::OsSpecific, Elf::Section::ProcSpecific, Elf::Section::Reserved, Elf::Section::SunW, Elf::Section::SunWIgnore, Elf::Section::Undef, Elf::Section::XIndex

Instance Attribute Summary

Attributes inherited from Elf::Section

#addr, #addralign, #entsize, #file, #index, #info, #offset, #type

Instance Method Summary collapse

Methods inherited from Elf::Section

#==, #flags, #flags_i, #flags_s, #initialize, #link, #load, #name, read, #summary

Constructor Details

This class inherits a constructor from Elf::Section

Instance Method Details

#[](idx) ⇒ Object 



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# File 'lib/elf/sunw.rb', line 151

def [](idx)
  load unless @entries
  
  @entries[idx]
end

#load_internal ⇒ Object 



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# File 'lib/elf/sunw.rb', line 97

def load_internal
  elf32 = @file.elf_class == Class::Elf32

  @entries = []
  loop do
    entry = {}
    tag = elf32 ? @file.read_word : @file.read_xword
    entry[:tag] = Tag[tag]

    # This marks the end of the array.
    break if entry[:tag] == Tag::Null

    # Right now the only two types used make only use of c_val,
    # but in the future there might be capabilities using c_ptr,
    # so prepare for that.
    case entry[:tag]
    when Tag::SF1
      val = elf32 ? @file.read_word : @file.read_xword
      entry[:flags] = Set.new
      
      Software1.each do |flag|
        entry[:flags].add(flag) if (val & flag.val) == flag.val
      end
    when Tag::HW1
      val = elf32 ? @file.read_word : @file.read_xword
      entry[:flags] = Set.new

      case @file.machine
      when Machine::Sparc
        Hardware1::Sparc.each do |flag|
          entry[:flags].add(flag) if (val & flag.val) == flag.val
        end
      when Machine::I386
        Hardware1::I386.each do |flag|
          entry[:flags].add(flag) if (val & flag.val) == flag.val
        end
      else
        raise "Sun-specific extensions only support i386/Sparc!"
      end
          
    else
      entry[:ptr] = @file.read_addr
    end

    @entries << entry
  end
end

#size ⇒ Object 



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# File 'lib/elf/sunw.rb', line 145

def size
  load unless @entries
  
  @entries.size
end