[epynonymous]

golang compiler on a raspberry pi 3 compiles applications really slowly, think minutes, but there's a workaround which is to cross compile on x86, think seconds plus sftp transfer. i assume the primary use case is to speed up compilation and create smaller binary sizes? this could be helpful as binary sizes for golang compiled binaries are pretty large, my apps typically are around 2-20MB, but i understand they include all dependencies.

[ori_b]

> i assume the primary use case is to speed up compilation and create smaller binary sizes?

LLVM is going to be much slower than the Go toolchain. It may produce smaller binaries, but mainly through dropping the bulk of the runtime on the floor. The main thing that LLVM does is (apparently) reduce the stack usage.

But it does support the CPUs that the author wants to target out of the box.

[nappy-doo]

I believe LLVM toolchains also (by default) exclude debug information, which gc (go compiler) would need to be told to explicitly exclude.

[dekhn]

I compiled go as an x86-64 to ARM cross compiler (ubuntu to raspi). Worked great. I even confused myself a bit by running the ARM binary on the x86-64 machine (turns out binfmt will detect the binary and run it under QEMU).