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Assembly files: use .S extension, not .s (error "riscv64-unknown-elf-as: unrecognized option `-x')

 
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 jvillalba
(@jvillalba)
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Joined: 3 years ago
Posts: 3
Topic starter 24/05/2022 10:37 am  

When dealing with assembly files, you must use the extension .S (uppercase) since otherwise (using .s (lowercase)), you can have problems.

The error message is "riscv64-unknown-elf-as: unrecognized option `-x'" and then the final error: "... 'swervolf_nexys'" terminated with exit code: 1".

At first, I used .s extension with no problem, but nowaday this extension produces error. The solution is very easy: rename your file to .S

From the platformio error messages it is very difficult to deduce that the problem is the extension.

Regards,

Julio Villalba


   
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