go-cross-canadian: add recipe

Enable cross-canadian builds of the Go toolchain.  This
requires an additional patch to the Go source to allow us
to use the native GOTOOLDIR during the bootstrap phase.

(From OE-Core rev: 9daa02f63a0d53ab90a515f2bd3e783187c9415b)

Signed-off-by: Matt Madison <matt@madison.systems>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/meta/recipes-devtools/go/go-1.8/set-gotooldir-during-bootstrap.patch b/meta/recipes-devtools/go/go-1.8/set-gotooldir-during-bootstrap.patch
new file mode 100644
index 0000000000..4b5e424d96
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.8/set-gotooldir-during-bootstrap.patch
@@ -0,0 +1,22 @@
+Set GOTOOLDIR during bootstrap 
+
+Signed-off-by: Matt Madison <matt@madison.systems>
+Upstream-Status: Pending
+
+Index: go/src/make.bash
+===================================================================
+--- go.orig/src/make.bash
++++ go/src/make.bash
+@@ -172,10 +172,11 @@ if [ "$do_host_build" = "yes" ]; then
+        mv cmd/dist/dist "$GOTOOLDIR"/dist
+        echo
+ 
++       GOTOOLDIR_BOOTSTRAP="${GOTOOLDIR_BOOTSTRAP:-$GOTOOLDIR}"
+        echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
+        # CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however,
+        # use the host compiler, CC, from `cmd/dist/dist env` instead.
+-       CC=$CC GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH \
++       CC=$CC GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH GOTOOLDIR="$GOTOOLDIR_BOOTSTRAP" \
+                "$GOTOOLDIR"/go_bootstrap install -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
+        echo
+ fi