package/go/go-bin: new host-go provider

This package provides a pre-built version for the host-go virtual
package introduced in the previous commits:

 - host-go-bin installs a pre-built version of the Go compiler.

By default, host-go remains built from sources to keep the same
behavior as the former version.

The menuconfig entry for host-go is updated to expose the host-go-bin
provider. The dependencies are set as such as if host-go-src does not
support the host architecture, it will automatically fall back to
host-go-bin and vice versa.

Signed-off-by: Thomas Perale <thomas.perale@mind.be>
[yann.morin.1998@free.fr:
  - update hashes for 1.22.7
  - add hash for the source tarball
  - set _DL_SUBDIR
  - don't set a prompt to BR2_PACKAGE_HOST_GO_BIN_HOST_ARCH
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/go/Config.in.host

@@ -34,7 +34,7 @@ config BR2_PACKAGE_HOST_GO_TARGET_CGO_LINKING_SUPPORTS
 config BR2_PACKAGE_HOST_GO_HOST_ARCH_SUPPORTS
 	bool
 	default y
-	depends on BR2_PACKAGE_HOST_GO_BOOTSTRAP_STAGE3_ARCH_SUPPORTS
+	depends on BR2_PACKAGE_HOST_GO_BOOTSTRAP_STAGE3_ARCH_SUPPORTS || BR2_PACKAGE_HOST_GO_BIN_HOST_ARCH_SUPPORTS
 
 # CGO linking for the host. Since we use the same compiler for target
 # and host, if the target can't do CGO linking, then the host can't.
@@ -57,7 +57,8 @@ if BR2_PACKAGE_HOST_GO
 
 choice
 	prompt "Go compiler variant"
-	default BR2_PACKAGE_HOST_GO_SRC
+	default BR2_PACKAGE_HOST_GO_SRC if BR2_PACKAGE_HOST_GO_BOOTSTRAP_STAGE3_ARCH_SUPPORTS
+	default BR2_PACKAGE_HOST_GO_BIN if BR2_PACKAGE_HOST_GO_BIN_HOST_ARCH_SUPPORTS
 	help
 	  Select a Go compiler variant.
 
@@ -65,18 +66,27 @@ choice
 
 config BR2_PACKAGE_HOST_GO_SRC
 	bool "host go (source)"
+	depends on BR2_PACKAGE_HOST_GO_BOOTSTRAP_STAGE3_ARCH_SUPPORTS
 	help
 	  This package will build the go compiler for the host.
 
-endchoice
+config BR2_PACKAGE_HOST_GO_BIN
+	bool "host go (pre-built)"
+	depends on BR2_PACKAGE_HOST_GO_BIN_HOST_ARCH_SUPPORTS
+	help
+	  This package will install pre-built versions of the compiler
 
-endif
+endchoice
 
 config BR2_PACKAGE_PROVIDES_HOST_GO
 	string
-	# Default to host-go-src, as the only provider for now
-	default "host-go-src"
+	# Default to host-go-src
+	default "host-go-src" if BR2_PACKAGE_HOST_GO_SRC
+	default "host-go-bin" if BR2_PACKAGE_HOST_GO_BIN
+
+endif
 
+source "package/go/go-bin/Config.in.host"
 source "package/go/go-bootstrap-stage1/Config.in.host"
 source "package/go/go-bootstrap-stage2/Config.in.host"
 source "package/go/go-bootstrap-stage3/Config.in.host"

package/go/go-bin/Config.in.host

@@ -0,0 +1,14 @@
+# Translate the HOSTARCH into the architecture name used by the Go compiler
+config BR2_PACKAGE_HOST_GO_BIN_HOST_ARCH
+	string
+	default "armv6l" if BR2_HOSTARCH = "arm"
+	default "arm64" if BR2_HOSTARCH = "aarch64"
+	default "ppc64le" if BR2_HOSTARCH = "powerpc64le"
+	default "s390x" if BR2_HOSTARCH = "s390x"
+	default "386" if BR2_HOSTARCH = "x86"
+	default "amd64" if BR2_HOSTARCH = "x86_64"
+
+config BR2_PACKAGE_HOST_GO_BIN_HOST_ARCH_SUPPORTS
+	bool
+	default y
+	depends on BR2_PACKAGE_HOST_GO_BIN_HOST_ARCH != ""

package/go/go-bin/go-bin.hash

@@ -0,0 +1,9 @@
+# sha256 checksum from https://go.dev/dl/
+sha256  66432d87d85e0cfac3edffe637d5930fc4ddf5793313fe11e4a0f333023c879f  go1.22.7.src.tar.gz
+sha256  810e4d9f3f2f03b2f11471a9c7a32302968fc09d51f666cecacedb1055f2f873  go1.22.7.linux-386.tar.gz
+sha256  fc5d49b7a5035f1f1b265c17aa86e9819e6dc9af8260ad61430ee7fbe27881bb  go1.22.7.linux-amd64.tar.gz
+sha256  ed695684438facbd7e0f286c30b7bc2411cfc605516d8127dc25c62fe5b03885  go1.22.7.linux-arm64.tar.gz
+sha256  0fd55519819922f51d13503f2c9b1294730be7ffa0ead8dd36c0e540c2a27508  go1.22.7.linux-armv6l.tar.gz
+sha256  a6441d5da40a961039ec22b0aadbc8b513f52b31bb8919c359a7e2c3c5bcf26a  go1.22.7.linux-ppc64le.tar.gz
+sha256  08dc28de0dafb175501b9d1623c9b11a9b734eb4b3a35c9c658cc91d4dfce3f3  go1.22.7.linux-s390x.tar.gz
+sha256  2d36597f7117c38b006835ae7f537487207d8ec407aa9d9980794b2030cbc067  LICENSE

package/go/go-bin/go-bin.mk

@@ -0,0 +1,20 @@
+################################################################################
+#
+# go-bin
+#
+################################################################################
+
+GO_BIN_SITE = https://go.dev/dl
+GO_BIN_SOURCE = go$(GO_VERSION).linux-$(call qstrip, $(BR2_PACKAGE_HOST_GO_BIN_HOST_ARCH)).tar.gz
+GO_BIN_DL_SUBDIR = go
+HOST_GO_BIN_ACTUAL_SOURCE_TARBALL = go$(GO_VERSION).src.tar.gz
+GO_BIN_LICENSE = BSD-3-Clause
+GO_BIN_LICENSE_FILES = LICENSE
+
+HOST_GO_BIN_PROVIDES = host-go
+
+define HOST_GO_BIN_INSTALL_CMDS
+	$(GO_BINARIES_INSTALL)
+endef
+
+$(eval $(host-generic-package))

package/go/go.mk

@@ -71,6 +71,8 @@ HOST_GO_TARGET_ENV = \
 	$(HOST_GO_COMMON_ENV) \
 	GOOS="linux" \
 	GOARCH=$(GO_GOARCH) \
+	$(if $(GO_GO386),GO386=$(GO_GO386)) \
+	$(if $(GO_GOARM),GOARM=$(GO_GOARM)) \
 	CC="$(TARGET_CC)" \
 	CXX="$(TARGET_CXX)" \
 	CGO_CFLAGS="$(TARGET_CFLAGS)" \