Merge pull request #36050 from linux-on-ibm-z/master

Automatic merge from submit-queue (batch tested with PRs 37860, 38429, 38451, 36050, 38463)

[Part 2] Adding s390x cross-compilation support for gcr.io images in this repo

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**What this PR does / why we need it**: This PR enables s390x support to kube-dns , pause, addon-manager, etcd, hyperkube, kube-discovery etc. This PR also includes the changes due to which it can be cross compiled on x86 host architecture.

**Which issue this PR fixes #34328

**Special notes for your reviewer**:  In existing file "build-tools/build-image/cross/Dockerfile" the repository mentioned for installing cross build tool chains for supporting architecture does not have a tool chain for s390x hence in my PR I am changing the repository so that it will be cross compiled for s390x.

**Release note**:
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```
Allows cross compilation of Kubernetes on x86 host for s390x also enables s390x support to kube-dns , pause, addon-manager, etcd, hyperkube, kube-discovery etc  
```
This commit is contained in:
Kubernetes Submit Queue
2016-12-09 13:22:18 -08:00
committed by GitHub
18 changed files with 91 additions and 18 deletions

View File

@@ -61,6 +61,7 @@ else
linux/amd64
linux/arm
linux/arm64
linux/s390x
)
if [[ "${KUBE_BUILD_PPC64LE:-}" =~ ^[yY]$ ]]; then
KUBE_SERVER_PLATFORMS+=(linux/ppc64le)
@@ -78,6 +79,7 @@ else
darwin/386
windows/amd64
windows/386
linux/s390x
)
if [[ "${KUBE_BUILD_PPC64LE:-}" =~ ^[yY]$ ]]; then
KUBE_CLIENT_PLATFORMS+=(linux/ppc64le)
@@ -233,18 +235,32 @@ kube::golang::set_platform_envs() {
# Dynamic CGO linking for other server architectures than linux/amd64 goes here
# If you want to include support for more server platforms than these, add arch-specific gcc names here
if [[ ${platform} == "linux/arm" ]]; then
export CGO_ENABLED=1
export CC=arm-linux-gnueabi-gcc
# See https://github.com/kubernetes/kubernetes/issues/29904
export GOROOT=${K8S_PATCHED_GOROOT}
elif [[ ${platform} == "linux/arm64" ]]; then
export CGO_ENABLED=1
export CC=aarch64-linux-gnu-gcc
elif [[ ${platform} == "linux/ppc64le" ]]; then
export CGO_ENABLED=1
export CC=powerpc64le-linux-gnu-gcc
fi
case "${platform}" in
"linux/amd64")
;;
"linux/arm")
export CGO_ENABLED=1
export CC=arm-linux-gnueabi-gcc
# See https://github.com/kubernetes/kubernetes/issues/29904
export GOROOT=${K8S_PATCHED_GOROOT}
;;
"linux/arm64")
export CGO_ENABLED=1
export CC=aarch64-linux-gnu-gcc
;;
"linux/ppc64le")
export CGO_ENABLED=1
export CC=powerpc64le-linux-gnu-gcc
;;
"linux/s390x")
export CGO_ENABLED=1
export CC=s390x-linux-gnu-gcc
;;
*)
echo "Unsupported architecture to cross-compile from linux/amd64." >&2
exit 1
;;
esac
fi
}