On Mon, Apr 30, 2018 at 08:01:35AM +0200, Dmitry Vyukov wrote:
> Hi Ted,
>
> I don't know what's the problem with Go toolchain, maybe Ian's
> hypothesis is true. But we use cross-compilation for arm64 and arm
> from Debian Rodete distors and it's working. I cross-compiled executor
> for arm with arm-linux-gnueabihf-gcc just few days ago. People also
> recommend Linaro-provided toolchains for arm/arm64:
>
> https://www.linaro.org/downloads/
> https://releases.linaro.org/components/toolchain/binaries/latest/aarch64-linux-gnu/
At least historically, Debian's cross compilation environment is not
complete. (e.g., if I'm compiling ima-evm-utils, and it depends on
libssl-dev, do we have all of the headers for libssl-dev set up for
cross compilation if they have any hardware dependencies; etc. etc.)
Also Debian's cross compiler packages have release critical bugs since
forever, so they aren't in Debian stable. And I want to use a Debian
stable build environment so it's not constantly changing on me and
causing other instabilities.
So that's why I've been using a bare-metal machine or userspace qemu
emulation --- it's less work than fighting with trying to make
cross-compilation work (and it's not just for sykaller, but all of the
various components which make up the {gce,kvm,android}-xfstests test
appliance.)
I'm sure if I had a vast amount of time, I could make it all work.
Unfortunately, I don't....
Cheers,
- Ted
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