ObjectDumper, a small GUI for objdump

[max]

Hey guys,

so I recently made a small tool to make it more comfortable for me to disassemble my applications to find where errors occurred and stuff. It's basically a UI for objdump and uses the local installation to disassemble the binary and display it in an outline. You can then navigate through it either by clicking through the calls/jmps, entering a address, searching for functions or navigating through the history.

Here's a little video showing the usage: https://vimeo.com/179351807



I was just curious if anyone else would be interested in using this. If so, I'll put it on a GitHub repository and make it GPL. It's not very advanced yet (I actually started developing it yesterday) - feature ideas are very welcome. It's platform independent (written in Java).

Greets

[matt11235]

Looks great, do you have a setting to use Intel syntax instead of AT&T? I think the parameter to objdump is -mintel or something.

[tsdnz]

Looks great, do you have a windows version?

For me I used a Visual Studio text editor, using find....

[max]

Thanks for the input guys! I appreciate it.

Looks great, do you have a setting to use Intel syntax instead of AT&T? I think the parameter to objdump is -mintel or something.

I'll add this to the settings.

Looks great, do you have a windows version?

Yes it runs on Windows, too

I'll try to get an alpha release ready for you guys in the next days.

[Techel]

Looks great, thanks for sharing

[Octacone]

Looks good! Please make it Ubuntu compatible.

[Roman]

Looks fine, I might try it.

[heat]

Very cool dude, thanks a bunch.

[max]

Here's version 1.0! This is an alpha release, so don't expect it all to work perfectly.

Binary: https://ghostkernel.org/files/ObjectDumper-1.0-bin.zip
Sources: https://ghostkernel.org/files/ObjectDumper-1.0-src.zip

• General features:
• Runs on all platforms that support Java
• Decompiles binaries with objdump
• Displays an outline tree of all functions in all sections
• Filter functions by name (with advanced search, use "*" for any string)
• Which executable to use for objdump is configurable (e.g. your custom i686-myos-objdump)
• Assembly dialect is configurable
  
  Navigation features:
• Use history for navigating back/forward
• Hop through code by clicking on jump/call instructions
• Going to a specific address
• Finding all locations that call a specific function
• Finding all locations that jump to a specific location

I will soon make this a Maven project and then put it on GitHub. Currently it's an Eclipse project.

Would love to hear some feedback, feel free to write me here if you encounter a bug!

[matt11235]

Works perfectly on Java 8 on Debian. I love the find callers feature.
My only (tiny) nitpick is that the file explorer seems a bit clunky.

[max]

Works perfectly on Java 8 on Debian. I love the find callers feature.
My only (tiny) nitpick is that the file explorer seems a bit clunky.

Very nice to hear!
The standard Java filechooser is terrible, I know. I'll add my own implementation for this in one of the next version.

[Ycep]

YOU made this? Wow! Pretty amazing!

[max]

YOU made this? Wow! Pretty amazing!

Thanks friend
It's just a little side project

Just found some bugs and made a little update.

Binaries: https://ghostkernel.org/files/ObjectDumper-1.1-bin.zip
Sources: https://ghostkernel.org/files/ObjectDumper-1.1-src.zip

• Fixed a bug where files would not be parsed correctly
• Added name of the currently open file to the window title

[Roman]

Works perfectly, but only with x86(_64)! objdump for ARM is obviously unable to understand what 'att' and 'intel' are. Aside from ARM support, I'd like to see a history of selected objdump paths and an ability to press 'return' to follow the call on the current line. Many thanks for the tool!

[max]

Hey Roman,

Works perfectly, but only with x86(_64)! objdump for ARM is obviously unable to understand what 'att' and 'intel' are. Aside from ARM support, I'd like to see a history of selected objdump paths[...]

I'll have a look at the ARM problem.

I noted the thing with multiple different objdumps, I think I'll add a kind of "profiles" where you can configure different installations.

[...] and an ability to press 'return' to follow the call on the current line.

What do you mean with that? Do you mean returning on "RET" instructions? I could make this either jump back in history, or show the "Find callers" window?

Thanks for the feedback!