Class: MachO::Headers::FatArch

Inherits:
MachOStructure show all
Defined in:
lib/macho/headers.rb

Overview

Note:

"32-bit" indicates the fact that this structure stores 32-bit offsets, not that the Mach-Os that it points to necessarily are 32-bit.

32-bit fat binary header architecture structure. A 32-bit fat Mach-O has one or more of these, indicating one or more internal Mach-O blobs.

See Also:

Direct Known Subclasses

FatArch64

Constant Summary collapse

FORMAT =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.

Note:

Always big endian.

See Also:

"L>5".freeze
SIZEOF =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.

See Also:

20

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from MachOStructure

bytesize, new_from_bin

Constructor Details

#initialize(cputype, cpusubtype, offset, size, align) ⇒ FatArch

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of FatArch.



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# File 'lib/macho/headers.rb', line 551

def initialize(cputype, cpusubtype, offset, size, align)
  @cputype = cputype
  @cpusubtype = cpusubtype & ~CPU_SUBTYPE_MASK
  @offset = offset
  @size = size
  @align = align
end

Instance Attribute Details

#align ⇒ Integer (readonly)

Returns the alignment, as a power of 2.

Returns:

  • (Integer) —

    the alignment, as a power of 2



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# File 'lib/macho/headers.rb', line 539

def align
  @align
end

#cpusubtype ⇒ Integer (readonly)

Returns the CPU subtype of the Mach-O.

Returns:

  • (Integer) —

    the CPU subtype of the Mach-O



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# File 'lib/macho/headers.rb', line 530

def cpusubtype
  @cpusubtype
end

#cputype ⇒ Integer (readonly)

Returns the CPU type of the Mach-O.

Returns:

  • (Integer) —

    the CPU type of the Mach-O



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# File 'lib/macho/headers.rb', line 527

def cputype
  @cputype
end

#offset ⇒ Integer (readonly)

Returns the file offset to the beginning of the Mach-O data.

Returns:

  • (Integer) —

    the file offset to the beginning of the Mach-O data



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# File 'lib/macho/headers.rb', line 533

def offset
  @offset
end

#size ⇒ Integer (readonly)

Returns the size, in bytes, of the Mach-O data.

Returns:

  • (Integer) —

    the size, in bytes, of the Mach-O data



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# File 'lib/macho/headers.rb', line 536

def size
  @size
end

Instance Method Details

#serialize ⇒ String

Returns the serialized fields of the fat arch.

Returns:

  • (String) —

    the serialized fields of the fat arch



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# File 'lib/macho/headers.rb', line 560

def serialize
  [cputype, cpusubtype, offset, size, align].pack(FORMAT)
end

#to_h ⇒ Hash

Returns a hash representation of this MachO::Headers::FatArch.

Returns:



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# File 'lib/macho/headers.rb', line 565

def to_h
  {
    "cputype" => cputype,
    "cputype_sym" => CPU_TYPES[cputype],
    "cpusubtype" => cpusubtype,
    "cpusubtype_sym" => CPU_SUBTYPES[cputype][cpusubtype],
    "offset" => offset,
    "size" => size,
    "align" => align,
  }.merge super
end