ELF::Extract::Sections::Scanner::Objdump - An C based section scanner.


ELF-Extract-Sections documentation  | view source Contained in the ELF-Extract-Sections distribution.

Index


NAME

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ELF::Extract::Sections::Scanner::Objdump - An objdump based section scanner.

VERSION

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version 0.02071411

SYNOPSIS

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This module is a model implementation of a Naive and system reliant ELF Section detector. Its currently highly inefficient due to having to run the entire ELF through a disassembly process to determine the section positions and only guesses at section lengths by advertising that it can't compute sizes.

TO use this module, simply initialise ELF::Extract::Sections as so

    my $extractor  = ELF::Extract::Sections->new(
            file => "/path/to/file.so" ,
            scanner => "Objdump",
    );

IMPLEMENTS ROLES

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ELF::Extract::Sections::Meta::Scanner

ELF::Extract::Sections::Meta::Scanner

DEPENDS

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MooseX::Has::Sugar

Lots of keywords.

MooseX::Has::Sugar

MooseX::Types::Moose

Type Constraining Keywords.

MooseX::Types::Moose

MooseX::Types::Path::Class

File Type Constraints w/ Path::Class

MooseX::Types::Path::Class

PUBLIC METHODS

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-> open_file ( file => File ) : Bool ::Scanner

Opens the file and assigns our state to that file.

open_file in ELF::Extract::Sections::Meta::Scanner

-> next_section () : Bool ::Scanner

Advances our state to the next section.

next_section in ELF::Extract::Sections::Meta::Scanner

-> section_offset () : Int | Undef ::Scanner

Reports the offset of the currently open section

section_offset in ELF::Extract::Sections::Meta::Scanner

-> section_size () : Undef ::Scanner

Dies, because this module can't compute section sizes.

section_size in ELF::Extract::Sections::Meta::Scanner

-> section_name () : Str | Undef ::Scanner

Returns the name of the current section

section_name in ELF::Extract::Sections::Meta::Scanner

-> can_compute_size () : Bool ::Scanner

Returns false

can_compute_size in ELF::Extract::Sections::Meta::Scanner

PRIVATE ATTRIBUTES

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-> _header_regex : RegexpRef

A regular expression for identifying the

  <asdasdead>

Style tokens that denote objdump header names.

Note: This is not XML.

-> _offset_regex : RegexpRef

A regular expression for identifying offset blocks in objdump's output.

They look like this:

  File Offset: 0xdeadbeef

-> _section_header_identifier : RegexpRef

A regular expression for extracting Headers and Offsets together

  <headername> File Offset: 0xdeadbeef

-> _file : File

A Path::Class::File reference to a file somewhere on a system

clearer -> _clear_file

-> _filehandle : FileHandle

A perl FileHandle that points to the output of objdump for _file

clearer -> _clear_file_handle

-> _state : HashRef

Keeps track of what we're doing, and what the next header is to return.

predicate -> _has_state

clearer -> _clear_state

PRIVATE ATTRIBUTE BUILDERS

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-> _build__section_header_identifier : RegexpRef

Assembles _header_regex and _offset_regex

_section_header_identifier

PRIVATE METHODS

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-> _objdump : FileHandle | Undef

Calls the system objdump instance for the currently processing file.

AUTHOR

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Kent Fredric <kentnl@cpan.org>

COPYRIGHT AND LICENSE

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ELF-Extract-Sections documentation  | view source Contained in the ELF-Extract-Sections distribution.