Free debuggers software for linux

pebugger is an interactive command-line based debugger for PHP, written in PHP. The project vaguely resembles gdb. Its basicaly a dbgp client.

This is currently in an early development stage. Its stable and usable, but not fully featured, yet. Its something I am keen to start using myself, so features should be added fairly quickly.

So far, you can set breakpoints, step through code, and query variables.

FireBugger is a product which makes the Firebug Lite interactive Javascript console available on your Plone site.
Main features:
- Firebug is a Firefox extension that provides an incredible DOM/CSS inspector and Javascript console/debugger.
- Firebug Lite is a bit of Javascript that provides a slimmed down version of the Firebug Javascript console for browsers other than Firefox.
- FireBugger makes Firebug Lite instantly available on your Plone site!
FireBugger was initially built with generator.py from DIYPloneStyle 2.5, a skeleton product ready for building new graphical designs for Plone, and was extensively modified afterwards. Re-generation from DIYPloneStyle will probably break FireBugger.
Works with:
- Plone 2.5.2

JSwat is a graphical, stand-alone Java debugger, using the JPDA library.
JSwat Java Debugger offers breakpoints with monitors and conditions, colorized source code display, single-stepping, displaying variables, viewing stack frames, and expression evaluation.
Main features:
- breakpoints with conditionals and monitors
- colorized source code display
- graphical display panels showing threads
- stack frames
- visible variables
- loaded classes
- command interface for more advanced features
- Java-like expression evaluation, including method invocation.

Packet Debugger presents a debugger-like UI for pcap packet capture files.

The Packet Debugger (pdb) allows users to work with packet streams as if they were working with a source code debugger.

Users can list, inspect, modify, and retransmit any packet from captured files, as well as work with live packet captures.

wsdebug is a debugger for the more or less famous whitespace programming language, coming along with a rather fast interpreter (wsi).

Most programming languages like C or Perl do not care for white space characters (like tab, space or newline/linefeed). The whitespace programming language works just the other way round, dont care for any character but those white space ones.

On the whole its just another geeky language like Brainfuck and others, however more adicting.

If youve written a whole lot of instructions youll probably reach the point, where you get lost. Then just put your script into wsdebug and step through your bunch of whitespace instructions and watch how each command manipulates the stack (or heap).

EDB (Evans Debugger) is a QT4 based binary mode debugger with the goal of having usability on par with OllyDbg.

EDB project uses a plugin architecture, so adding new features can be done with ease. The current release is for Linux, but future releases will target more platforms.

The Assembly Language Debugger is a tool for debugging executable programs at the assembly level. It currently runs only on Intel x86 platforms.
Operating systems supported: Linux, FreeBSD, NetBSD, OpenBSD
Main features:
- Step into / Step over
- Breakpoints
- Powerful ELF format interpreter
- Easy memory manipulation
- Disassembler for intel x86 instructions
- Easy register manipulation
Enhancements:
- added commands: display, ldisplay, undisplay to dump specified memory locations after each single step (thanks to ziberpunk < ziberpunk =at= ziberghetto dhis org > for the suggestion and code)
- all Makefiles are now based on automake in the hopes that this will fix some of the problems integrating ald into the *BSD ports systems
- bug fix where a pointer wasnt set to NULL after clearing program arguments with the "set args" command
- this is related to the previous feature: if the effective address lies inside a symbol/function, the corresponding symbol is now displayed
- for CALL and JMP instructions, exact target/effective addresses are now computed (code for this was contributed by Samuel Falvo II < kc5tja =at= arrl net >)
- upgraded all configure scripts to autoconf v2.59

Major Features:

1. JavaScript debugger for stepping through code one line at a time
2. Status bar icon shows you when there is an error in a web page
3. A console that shows errors from JavaScript and CSS
4. Log messages from JavaScript in your web page to the console (bye bye "alert debugging")
5. An JavaScript command line (no more "javascript:" in the URL bar)
6. Spy on XMLHttpRequest traffic
7. Inspect HTML source, computed style, events, layout and the DOM
   

Enhancements:

• Issue 1763: JavaScript exceptions on some pages [nsIStreamListener.onDataAvailable] and [nsIStreamListener.onStartRequest]
• Remove dubious script tooltip
• Issue 1282: Editing boolean var in watch panel changes it to a string

Requirements: Mozilla Firefox