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The ELF shell 0.5 takes advantage of a hash based, lazy typed object oriented architecture, a readline based interactive mode (35+ builtin commands, with history, completion, regular expression powered), a scripting mode (sample scripts and session logs available on this page) and brings more modification API (relocation tables, .interp, .dynamic, .dynsym, PAX bits, and +), atomic operations with get/set and add/sub/mul/div/mod commands, section injection by top (insert unlimited amount of data in the executable PT_LOAD, even in non-executable environments), a quiet output for tiny screens, ELFsh modules support, sophisticated write/printf primitives, SPARC PLT infection, experimental ET_EXEC relocation and remapping features, ET_REL injection into ET_EXEC (with bss and symtab merging support), disassembly (with good resolving) on i386 binaries with libasm, and much more.

This is a simple developer's tool for finding circular references in objects and other types of references. Because of Perl's reference-count based memory management, circular references will cause memory leaks.

Devel::Dumpvar is a pure object-orientated reimplementation of the dumpvar.pl script. This makes it much more versatile version to use for dumping information to debug log files or other uses where is no need to reassemble the data.

Devel::BeginLift 'lifts' arbitrary sub calls to running at compile time - sort of a souped up version of "use constant". It does this via some slightly insane perlguts magic.

Devel::CheckOS provides a more friendly interface to $^O, and also lets you check for various OS "families" such as "Unix", which includes things like Linux, Solaris, AIX etc.

If you run your program with perl -d:Trace program, this module will print a message to standard error just before each line is executed. For example, if your program looks like this:

Devel::OverloadInfo returns information about overloaded operators for a given class (or object), including where in the inheritance hierarchy the overloads are declared and where the code implementing it is.

Env::Path presents an object-oriented interface to path variables, defined as that subclass of environment variables which name an ordered list of filesystem elements separated by a platform-standard separator (typically ':' on UNIX and ';' on Windows).

It's often inconvenient to correctly create a platform-independent temporary storage space, manipulate files inside it, then clean it up. This module aims to eliminate that problem by making it easy to do things right.

Doxygen Filter is an input filter for Doxygen enabling support for Perl code documentation. Doxygen is quite a powerful code documentation system that already has built-in support for multiple programming languages.