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9679 :: Executable crashes unless compiled with -d:release

• ci4ic4 (orginal) [2022-11-30T13:35:50+01:00] view original

  Nim - just built from the latest sources on GitHub:

  $ nim --version
  Nim Compiler Version 1.7.3 [NetBSD: amd64]
  Compiled at 2022-11-30
  Copyright (c) 2006-2022 by Andreas Rumpf
  
  git hash: 84ea62ea0d64ba454d0f53beb4f3f16d0582ab45
  active boot switches: -d:release

  Tests succeed/fail the same as on the pkgsrc-produced 1.6.10 version.

  If an executable is produced without -d:release, I am getting:

  (gdb) run
  Starting program: /home/xci/src/nimbits/string04
  
  Program received signal SIGSEGV, Segmentation fault.
  0x0000000000415706 in nimZeroMem ()
  (gdb) bt
  #0  0x0000000000415706 in nimZeroMem ()
  #1  0x0000000000415b51 in threadVarAlloc__system_2150 ()
  #2  0x0000000000415bad in initThreadVarsEmulation ()
  #3  0x0000000000415bdd in PreMain ()
  #4  0x0000000000415bff in NimMain ()
  #5  0x0000000000415c3e in main ()

  This happens with any program, even a one-liner containing just 'echo "Hello, world.".

  The executables produced by 1.6.10 do not have the problem.

  I didn't want to raise an issue on GitHub yet, as I might be missing something simple - in the failing case I am running nim without any installation, just by setting the PATH to the Nim/bin directory.

  Any ideas?

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• Araq (orginal) [2022-11-30T19:54:08+01:00] view original

  Use --threads:off or --tlsEmulation:off. I suppose all the BSDs offer working thread local storage implementations these days.

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• ci4ic4 (orginal) [2022-12-01T23:20:19+01:00] view original

  Thanks, it works with both. I guess there should be some build time patch or flag to take care of this in the latest versions, as it doesn't happen with the released version.

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• ci4ic4 (orginal) [2022-12-11T22:52:05+01:00] view original

  On a very -current NetBSD-amd64 my tests now mostly pass:

  
  PASS: tests/stdlib/tyield.nim js                                   ( 0.67 sec)
  FAILURE! total: 302 passed: 288 skipped: 10 failed: 4
  tests failed
  Run

  One needs:

  
  --- config/nim.cfg.ORIG 2022-12-11 21:41:33.973497874 +0000
  +++ config/nim.cfg      2022-12-11 21:45:59.081698599 +0000
  @@ -181,10 +181,9 @@
   
   gcc.maxerrorsimpl = "-fmax-errors=3"
  
  -@if freebsd:
  +@if freebsd or netbsd:
     tlsEmulation:off
   @elif bsd:
  -  # at least NetBSD has problems with thread local storage:
     tlsEmulation:on
   @end
  Run

  (prior to this I had some 170 failures reported).

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