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bash: ./hello.o: cannot execute binary file: Exec format error [message #1851796]

Sat, 16 April 2022 04:33

stuart naylor

Messages: 2
Registered: April 2022

Junior Member

Hi total noob just trying a 1st compile and after a chmod a+x of the release build when I run in the release folder

bash: ./hello.o: cannot execute binary file: Exec format error

hello.o is just the name I used for the hello world template example I get the above error?

What am I doing wrong guys?

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Re: bash: ./hello.o: cannot execute binary file: Exec format error [message #1851800 is a reply to message #1851796]

Sat, 16 April 2022 12:19

Tauno Voipio

Messages: 739
Registered: August 2014

Senior Member

This is a bit off-topic for Eclipse, but I'll respond anyway:

The .o file is a relocatable symbolic binary file, and as such, not fit for being run. That is why it did not have the executable attribute.

The .o file needs to be processed by the linker (GNU ld) to combine it with the appropriate run-time libraries into a runnable file.

Try this:

gcc -o hello hello.o

It seems to me that you have translated the .c code with the -c option. Another way to get it right the first time is to translate:

gcc -o hello hello.c

--

Tauno Voipio

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Re: bash: ./hello.o: cannot execute binary file: Exec format error [message #1851801 is a reply to message #1851800]

Sat, 16 April 2022 12:53

stuart naylor

Messages: 2
Registered: April 2022

Junior Member

Thanks Tauno,

Apologies as it was me being stupid I didn't give the c source an extension and made the presumption that was the c source files and not the compiled result.
Its starting to make sense and apols for my noobness.

[Updated on: Sat, 16 April 2022 13:04]

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