How to Inspect Compiled Binaries (binutils, objdump)

[@ragnus78]

Best KZbin on c-programming.

[@alik250]

Agreed

[@menixator]

Your videos are really conscience and to the point. As a student who's starting out with C on Linux, they're really helpful. Keep them coming 👍

[@JacobSorber]

Will do.

[@Kiarie-mg9th]

Atom editor. Seeing you again broke my heart. You were the best IDE ever.

[@mohammadhosein77]

This video deserves more views, I wonder why it has only 3.8k

[@dotta4981]

Because there are many methods, including better ones to go about doing this...

[@tatterdemalion898]

I was working in embedded, did a lot of stuff, and i am glad i sill find new information on your channel! Thanks fos sharing!

[@90nop]

Very informative videos! This channel is exactly what I was looking for. Thank you very much!

[@nguyenthanhdat93]

This is gold!! Thanks for sharing, Jacob! :) 🚀

[@JacobSorber]

You're welcome. Glad you enjoyed it.

[@urizilber7545]

Best tech channel!!

[@woosukbyun2455]

Thank you so much for a precious information!

[@gareginasatryan6761]

I have a story. Many years ago I copied the guy’s emails out of AOL, but I just dragged and dropped them into a folder. When it was time to restore, they had lost the time stamps so the emails were not sorted by date. Panicked I called a family friend who was a sysadmin. He said that nothing could be done. It took me about a week of non-stop work to get the emails into monthly folders. Years later I learned more about computer science and scripting to find out that this would have been stupid easy. Lookup date string in the files and change the meta-data accordingly.

[@tedburke525]

Concise and very informative 😎👍

[@dontaskme1625]

I love your channel! Thank you very much :D

[@nunustone7133]

Interesting topic... well done... Maybe a video series could go depper in the practical use of inspecting binaries...

[@pitpotputpet]

Super helpful. Especially since gnu's documentation on these utilities can be hard to follow.

[@jorionedwards]

I notice that's a common problem. I tried learning Bison through the info file and I came out not even knowing what it was.

[@cyogerenkundibiza5284]

Thank you for the video. Do you mind recommending a book which goes deep into the process that you were just explaining ?

[@messengerofiexist2139]

The ELF header is huge, you only need 100 bytes for the executable to run, another place to reduce file size. “1 Handmade ELF”

[@tomassimoes7808]

Great video, great channel. Thank you so much :)))

[@JacobSorber]

You're welcome. Glad I could help.

[@SB-rf2ye]

love you man!!!

[@bishakhdutta8427]

This channel uploads only stuff where i get stuck or am confused

[@lovelygirish2242]

Simply nice nd interesting

[@caseyblake8659]

Great video love it. Do you have a video about updating and extracting firmware from devices.

[@EmiPereyra]

Thanks Jacob! All your videos are very useful. Do you use radare2? It seems to be a powerful tool. Maybe you could make a video of that. Saludos desde Argentina!

[@JacobSorber]

I have used it a little. It is pretty powerful. I'll add it to the list and see what I can put together. Thanks!

[@user-mr3mf8lo7y]

A question.. Assuming it is less than 5Mb, how relevant the size of binary with regards to the performance of binary in general, nowadays? Having gHz CPU's, would that make a big difference whether the size of binary is 1Mb or 10Mb (in Laymans terms)? Thanks,.

[@aabdev]

Dear Jacob Sorber, We have a running process that performs something in super loop while(1). Is there a way get a some variable address (by its name in code) and change its value in run time without modification of the code? Regards,

[@ay5662]

What's that text editor?

[@NeerajSharma-oz1mm]

Can't thank you enough

[@黎銘-s9n]

VS code always tells me a.out is not readable, no, it is readable so long as a tool is available. Finally the blackbox is opened and demystified and thanks a lot.

[@vinnierocks007]

Is it possible to explain what each column means when using objdump -d option? As far as I understand, the instruction is provided as hex and symbolic representation. Is there a way to understand how an instruction can be converted to this hex or symbolic representation? Or can the hex format be found by knowing the symbolic format?

[@briansantos9803]

If you use the d option you will receive the code in assembly language

[@Saimon404]

How to decompile cython file to py..? Replay pls sir. Any method or paid method

[@arrahul316]

Awesome.

[@coolguy69verycool]

This shit is so fucking cool

[@scottthornton4220]

This is a great channel dude. Lots of misc. information in here. On topic, people can also checkout Compiler Explorer.

[@JacobSorber]

Thanks, Scott. Yes, definitely. Godbolt.org is a great resource.

[@po210]

I thought he used "assword" as a password for a second.

[@maazahmedpoke]

*assword*