initial buildroot for linux 5.15

package/go-bootstrap/Config.in.host

@@ -0,0 +1,7 @@
+config BR2_PACKAGE_HOST_GO_BOOTSTRAP_ARCH_SUPPORTS
+	bool
+	# See src/cmd/dist/unix.c for the list of support
+	# architectures
+	default y if BR2_HOSTARCH = "x86"
+	default y if BR2_HOSTARCH = "x86_64"
+	default y if BR2_HOSTARCH = "arm"

package/go-bootstrap/go-bootstrap.hash

@@ -0,0 +1,3 @@
+# Locally computed:
+sha256  f4ff5b5eb3a3cae1c993723f3eab519c5bae18866b5e5f96fe1102f0cb5c3e52  go1.4-bootstrap-20171003.tar.gz
+sha256  dd26a7abddd02e2d0aba97805b31f248ef7835d9e10da289b22e3b8ab78b324d  LICENSE

package/go-bootstrap/go-bootstrap.mk

@@ -0,0 +1,50 @@
+################################################################################
+#
+# go-bootstrap
+#
+################################################################################
+
+# Use last C-based Go compiler: v1.4.x
+# See https://golang.org/doc/install/source#bootstrapFromSource
+GO_BOOTSTRAP_VERSION = 1.4-bootstrap-20171003
+GO_BOOTSTRAP_SITE = https://dl.google.com/go
+GO_BOOTSTRAP_SOURCE = go$(GO_BOOTSTRAP_VERSION).tar.gz
+
+GO_BOOTSTRAP_LICENSE = BSD-3-Clause
+GO_BOOTSTRAP_LICENSE_FILES = LICENSE
+
+# To build programs that need cgo support the toolchain needs to be
+# available, so the toolchain is not needed to build host-go-bootstrap
+# itself, but needed by other packages that depend on
+# host-go-bootstrap.
+HOST_GO_BOOTSTRAP_DEPENDENCIES = toolchain
+
+HOST_GO_BOOTSTRAP_ROOT = $(HOST_DIR)/lib/go-$(GO_BOOTSTRAP_VERSION)
+
+# The go build system is not compatable with ccache, so use HOSTCC_NOCCACHE
+# here.  See https://github.com/golang/go/issues/11685.
+HOST_GO_BOOTSTRAP_MAKE_ENV = \
+	GOOS=linux \
+	GOROOT_FINAL="$(HOST_GO_BOOTSTRAP_ROOT)" \
+	GOROOT="$(@D)" \
+	GOBIN="$(@D)/bin" \
+	CC=$(HOSTCC_NOCCACHE) \
+	CGO_ENABLED=0
+
+define HOST_GO_BOOTSTRAP_BUILD_CMDS
+	cd $(@D)/src && $(HOST_GO_BOOTSTRAP_MAKE_ENV) ./make.bash
+endef
+
+define HOST_GO_BOOTSTRAP_INSTALL_CMDS
+	$(INSTALL) -D -m 0755 $(@D)/bin/go $(HOST_GO_BOOTSTRAP_ROOT)/bin/go
+	$(INSTALL) -D -m 0755 $(@D)/bin/gofmt $(HOST_GO_BOOTSTRAP_ROOT)/bin/gofmt
+
+	cp -a $(@D)/lib $(HOST_GO_BOOTSTRAP_ROOT)/
+	cp -a $(@D)/pkg $(HOST_GO_BOOTSTRAP_ROOT)/
+
+	# There is a known issue which requires the go sources to be installed
+	# https://golang.org/issue/2775
+	cp -a $(@D)/src $(HOST_GO_BOOTSTRAP_ROOT)/
+endef
+
+$(eval $(host-generic-package))