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7980 :: cosmonim hello world - No such file or directory

• ggibson (orginal) [2021-05-14T20:10:43+02:00] view original

  Anyone have experience with cosmonim?

  I follow the hello world tutorial in their README.md and get this result.

  
  bash: ./hello.com: No such file or directory
  Run

  I've even tried bash -c "./hello.com" Initially I was having a problem where wine was being implicitly invoked and the executable would run, so I uninstalled wine to prevent sly invocation.

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• Yardanico (orginal) [2021-05-15T01:27:17+02:00] view original

  Can you show all commands that you've used for compilation?

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• ggibson (orginal) [2021-05-15T03:25:44+02:00] view original

  Yes, and thanks for cosmonim! Cool idea.

  
  $ git clone https://github.com/Yardanico/cosmonim
  $ cd cosmonim
  $ curl -o cosmo.zip https://justine.lol/cosmopolitan/cosmopolitan.zip
  $ unzip -d cosmopolitan cosmo.zip
  $ nim c -d:danger --opt:size -o:hello.elf hello.nim
  $ objcopy -SO binary hello.elf hello.com
  $ ./hello.com
  bash: ./hello.com: No such file or directory
  $ ls -la hello.com
  -rwxrwxr-x 1  84K  hello.com
  $ mv nim.cfg old.nim.cfg
  $ nim r hello.nim
  Hello, world!
  hellohere
  Run

  nim	1.5.1
  gcc	10.2.0
  glibc	2.31
  bash	5.1.4(1)

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• ggibson (orginal) [2021-05-15T14:37:35+02:00] view original

  I wonder if it's a relic from Wine's installation somehow. I'm trying to research how wine implants itself in the system so the system knows to invoke /usr/bin/wine because maybe that is still here for some reason.

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• Yardanico (orginal) [2021-05-15T15:04:49+02:00] view original

  Oh, then the error is indeed because of wine's binfmt handler - see https://github.com/jart/cosmopolitan/issues/2#issuecomment-682258566

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• ggibson (orginal) [2021-05-15T15:09:04+02:00] view original

  Progress! Thanks - that helped me excise Wine. Now when running hello.com I get the standard linux error. The elf predictably runs fine.

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

  And now I'm actually stumped.

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• ggibson (orginal) [2021-05-16T16:42:24+02:00] view original

  Do you have any hints as to what I might look into in nim compile flags as to why cosmonim might not be working well on a particular linux distribution (Solus Linux)? I tried a fresh VM of both Ubuntu and Solus, and cosmonim yields segfault on solus but runs fine on Ubuntu. However, cosmopolitan itself does work on Solus, so I'm convinced this should be solvable through the right compile flags.

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• ggibson (orginal) [2021-05-24T17:23:45+02:00] view original

  @Yardanico I'm still poking at this - do you have any compiler insights as to how I could introspect why this isn't working on a particular linux distribution?

  https://stackoverflow.com/questions/67665566/how-to-cosmonim-gcc-on-solus-linux-segfault

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• Yardanico (orginal) [2022-08-31T15:54:36+02:00] view original

  Just as an update - I've seen a repo of someone else who used cosmopolitan with Nim - https://github.com/gnu-enjoyer/ActuallyPortableNim and decided to re-check my repo, because it didn't work with an older version of cosmopolitan for some reason. Now it works again, so you're free to use https://github.com/Yardanico/cosmonim (or that other repo, although it has a Makefile that manually compiles Nim-created C files instead of letting Nim compile them).

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