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6210 :: v1.2 fails to compile "==" for standalone & gc=none

• foldl (orginal) [2020-04-14T10:33:41+02:00] view original

  A simple array comparsion will cause error: system module needs: appendString.

  Test code:

  var
    arr1: array[6, uint8] = [0xC2u8, 0x12, 0x35, 0x98, 0x67, 0x00]
    arr2: array[6, uint8] = [0xC3u8, 0x12, 0x35, 0x98, 0x67, 0x00]
  
  proc printf(fmt: cstring) {. varargs, importc: "printf", header: "stdio.h".}
  
  printf("%d", arr1 == arr2)
  Run

  Cfg:

  gc = "none"
  define = "release"
  deadCodeElim = "on"
  os = "standalone"
  LineDir = "off"
  debuginfo
  implicitStatic = "on"
  Run

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• cdome (orginal) [2020-04-14T11:39:51+02:00] view original

  what is the error?

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• foldl (orginal) [2020-04-15T12:47:40+02:00] view original

  Error:

  system module needs: appendString.

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• PMunch (orginal) [2020-04-16T09:27:59+02:00] view original

  It seems like your issue is elsewhere, I tried myself with your cfg and code, and with this panicoverride.nim:

  proc rawoutput(s: string) = discard
  proc panic(s: string) = discard
  Run

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• foldl (orginal) [2020-04-16T15:30:41+02:00] view original

  Here it is:

  https://github.com/ingchips/ING918XX_SDK_SOURCE/blob/master/examples-nim/smart_home_hub/src/panicoverride.nim

  I can't test it at present. Even through, why 1.0.x is OK?

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• leorize (orginal) [2020-04-16T23:21:55+02:00] view original

  --os:standalone has been deprecated I think, the replacement is now --os:any: https://nim-lang.org/docs/nimc.html#nim-for-embedded-systems

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• foldl (orginal) [2020-04-17T05:05:53+02:00] view original

  No, it does not work for me with your panicoverride.nim.

  
  nim -v
  Nim Compiler Version 1.2.0 [Windows: amd64]
  Compiled at 2020-04-03
  Copyright (c) 2006-2020 by Andreas Rumpf
  
  git hash: 7e83adff84be5d0c401a213eccb61e321a3fb1ff
  active boot switches: -d:release
  Run

  The problem is associated with "==".

  @leorize, by changing "standalone" to "any", the error is gone. But, in this case, some warnings appear (Warning: '....' uses GC'ed memory), and panicoverride.nim is not needed any more. See fatal.nim:

  when hostOS == "standalone":
    include "$projectpath/panicoverride"
    
    proc sysFatal(exceptn: typedesc, message: string) {.inline.} =
      panic(message)
  ....
  Run

  So, --os:any is not a replacement of --os:standalone.

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• foldl (orginal) [2020-04-17T05:28:55+02:00] view original

  Each time there a pain in Nim, always look for a cure in C.

  I have to get rid of "==" and call memcmp for a cure.

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