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172 :: nimkernel: a small nimrod "kernel"

• dom96 (orginal) [2013-07-01T01:29:25+02:00] view original

  I finally got around to doing some OS dev in Nimrod, and I finished it just in time with documentation and everything: here it is, nimkernel.

  Now you guys have no excuse not to replace Linux using Nimrod ;)

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• exhu (orginal) [2013-07-01T07:37:45+02:00] view original

  I wrote some OSes long time ago, first 16-bit then 32-bit in asm, freepascal, c. But with modern x86-64 it's not much fun writing miriads of drivers...

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• kashyap (orginal) [2015-01-27T08:56:18+01:00] view original

  Hi Dominik,

  I've been exploring various languages for writing an operating system kernel and had settled on Rust(https://github.com/ckkashyap/rustix). It was by chance that I ran into Nim.

  I tired building nimkernel today and ran into some build issues. I was wondering if it would be trivial to build it with the latest Nim compiler?

  Regards, Kashyap

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• def (orginal) [2015-01-27T12:12:03+01:00] view original

  Works again, should make its way into the main repo soon: https://github.com/dom96/nimkernel/pull/1

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• kashyap (orginal) [2015-01-28T07:21:23+01:00] view original

  I am still struggling to get the gcc cross compiler working. I just noticed tinyc in the source. Would it be possible to use tiny c to build nimkernel?

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• kashyap (orginal) [2015-01-28T08:21:13+01:00] view original

  Sorry...my bad ... looks like I was habitually doing a make all - whereas I needed to do make all-gcc

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• kashyap (orginal) [2015-01-28T08:22:35+01:00] view original

  Pure pleasure indeed!!!

  On my mac though I get this error - In file included from /Users/ckrishi/Documents/kashyap/nimkernel/nimcache/main.c:8:

  /Users/ckrishi/Documents/kashyap/Nim/lib/nimbase.h:385:28: error: 'assert_numbits' declared as an array with a negative size

  typedef int assert_numbits[sizeof(NI) == sizeof(void*) && NIM_INTBITS == sizeof(NI)*8 ? 1 : -1];

  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  /Users/ckrishi/Documents/kashyap/nimkernel/nimcache/main.c:26:8: error: expected string literal in 'asm'

  asm();

  ^

  2 errors generated. In file included from /Users/ckrishi/Documents/kashyap/nimkernel/nimcache/stdlib_system.c:8:

  /Users/ckrishi/Documents/kashyap/Nim/lib/nimbase.h:385:28: error: 'assert_numbits' declared as an array with a negative size

  typedef int assert_numbits[sizeof(NI) == sizeof(void*) && NIM_INTBITS == sizeof(NI)*8 ? 1 : -1];

  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  1 error generated. In file included from /Users/ckrishi/Documents/kashyap/nimkernel/nimcache/ioutils.c:8:

  /Users/ckrishi/Documents/kashyap/Nim/lib/nimbase.h:385:28: error: 'assert_numbits' declared as an array with a negative size

  typedef int assert_numbits[sizeof(NI) == sizeof(void*) && NIM_INTBITS == sizeof(NI)*8 ? 1 : -1];

  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  1 error generated. In file included from /Users/ckrishi/Documents/kashyap/nimkernel/nimcache/stdlib_unsigned.c:8:

  /Users/ckrishi/Documents/kashyap/Nim/lib/nimbase.h:385:28: error: 'assert_numbits' declared as an array with a negative size

  typedef int assert_numbits[sizeof(NI) == sizeof(void*) && NIM_INTBITS == sizeof(NI)*8 ? 1 : -1];

  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  1 error generated.

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• Varriount (orginal) [2015-01-28T09:24:06+01:00] view original

  That error occurs when the Nim executable and the C compiler disagree on pointer sizes.

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• kashyap (orginal) [2015-01-28T09:27:50+01:00] view original

  Strange though, things work fine on 64-bit ubuntu!

  Perhaps I'd have to compile a 32bit nim on mac and things would work!

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