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6347 :: hello world execute on openwrt

• zhouhaiming (orginal) [2020-05-17T04:42:50+02:00] view original

  compile OS is Debian 10.4 x86_64 # nim --version Nim Compiler Version 1.2.0 [Linux: amd64] Compiled at 2020-04-03 Copyright (c) 2006-2020 by Andreas Rumpf

  git hash: 7e83adff84be5d0c401a213eccb61e321a3fb1ff active boot switches: -d:release

  cat hello.nim

  echo "Hello World"

  nim -d:release --opt=size --passL:-s --cpu:arm --os:linux --gcc.exe:arm-openwrt-linux-gcc --gcc.linkerexe:arm-openwrt-linux-gcc c hello.nim

  When I execute the hello program on Openwrt(arm_cortex-a9_vfpv3) # ./hello

  -ash: ./hello: not found

  opkg print_architecture

  arch all 1 arch noarch 1 arch arm_cortex-a9_vfpv3 10

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• PMunch (orginal) [2020-05-18T13:02:52+02:00] view original

  Well it isn't able to find the hello executable. Did you copy it over? Did you copy it over to the place you thought you did? Are you standing in the correct folder?

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• Yardanico (orginal) [2020-05-18T13:21:59+02:00] view original

  It's not about not finding the binary though - that error can also occur if the binary is made for a different architecture than the current one.

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• Clonk (orginal) [2020-05-18T16:11:41+02:00] view original

  I've had a similar problem when developing on Xilinx hardware (ZedBoard) using Rust & Cargo.

  The error was due to linking against a different version of libc that was installed on my board (as @Yardanico said).

  The solution I chose was to use musl-gcc in order to statically link the libc.

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• Yardanico (orginal) [2020-05-18T16:22:02+02:00] view original

  Or you can use Zig (it can act as a C compiler because of libclang and includes musl for a lot of architectures so you can easily cross compile) so you wouldn't have to compile GCC yourself.

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• zhouhaiming (orginal) [2020-05-19T05:30:37+02:00] view original

  Thanks, I have resolved this problem:

  
  nim -d:release --opt=size --passL:'-s -static' --cpu:arm --os:linux --gcc.exe:arm-openwrt-linux-gcc --gcc.linkerexe:arm-openwrt-linux-gcc c hello.nim
  Run

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