Using cross compilation toolchains that work from any platform
Adds darwin/arm64 support and bake targets. Static and dynamic
binary targets are available, both with glibc and musl.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit 6423da8)
Signed-off-by: Tibor Vass <tibor@docker.com>

New solution is not hardcoded to amd64 but integrates
with the cross toolchain and support creating arm binaries.

Go has been updated so that ASLR works

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit 8b822c9)
Signed-off-by: Tibor Vass <tibor@docker.com>

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit a2a1de5)
Signed-off-by: Tibor Vass <tibor@docker.com>

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit bd3e853)
Signed-off-by: Tibor Vass <tibor@docker.com>

More can be removed/refactored but avoiding a huge change.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit 706e857)
Signed-off-by: Tibor Vass <tibor@docker.com>

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit b099c9c)
Signed-off-by: Tibor Vass <tibor@docker.com>

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit 26b633d)
Signed-off-by: Tibor Vass <tibor@docker.com>

…ckwards compat

Signed-off-by: Tibor Vass <tibor@docker.com>

Docker 20.10 only supports windows/amd64, and though tonistiigi/xx allows
us to support many other architectures, I preferred to not have to vendor in
12k lines of golang.org/x/sys just to get windows/arm64 working.

This is only meant for 20.10.

Signed-off-by: Tibor Vass <tibor@docker.com>