@@ -429,3 +429,4 @@ include package/pkg-kconfig.mk
include package/pkg-rebar.mk
include package/pkg-kernel-module.mk
include package/pkg-waf.mk
+include package/pkg-golang.mk
new file mode 100644
@@ -0,0 +1,121 @@
+################################################################################
+# Golang package infrastructure
+#
+# This file implements an infrastructure that eases development of
+# package .mk files for Go packages. It should be used for all
+# packages that are written in go.
+#
+# See the Buildroot documentation for details on the usage of this
+# infrastructure
+#
+#
+# In terms of implementation, this golang infrastructure requires
+# the .mk file to only specify metadata information about the
+# package: name, version, download URL, etc.
+#
+# We still allow the package .mk file to override what the different
+# steps are doing, if needed. For example, if <PKG>_BUILD_CMDS is
+# already defined, it is used as the list of commands to perform to
+# build the package, instead of the default golang behaviour. The
+# package can also define some post operation hooks.
+#
+################################################################################
+
+################################################################################
+# inner-golang-package -- defines how the configuration, compilation and
+# installation of a Go package should be done, implements a few hooks to
+# tune the build process for Go specifities and calls the generic package
+# infrastructure to generate the necessary make targets
+#
+# argument 1 is the lowercase package name
+# argument 2 is the uppercase package name, including a HOST_ prefix
+# for host packages
+# argument 3 is the uppercase package name, without the HOST_ prefix
+# for host packages
+# argument 4 is the type (target or host)
+################################################################################
+
+define inner-golang-package
+
+ifndef $(2)_MAKE_ENV
+define $(2)_MAKE_ENV
+ $$(HOST_GO_TARGET_ENV) \
+ GOPATH="$$(@D)/gopath" \
+ CGO_ENABLED=$$(HOST_GO_CGO_ENABLED)
+endef
+endif
+
+# Target packages need the Go compiler on the host.
+$(2)_DEPENDENCIES += host-go
+
+#
+# go install command doesn't work well when cross compilation is enabled,
+# we set the executable output of the compilation to a specific location.
+# We set this variable here to be used by packages if needed.
+#
+$(2)_EXECUTABLE = $$(@D)/gopath/bin/$(1)
+
+#
+# Source files in Go should be uncompressed in a precise folder in the
+# hiearchy of GOPATH. It usually resolves around domain/vendor/software.
+#
+$(1)_src_path ?= $$(call domain,$($(2)_SITE))/$$(firstword $$(subst /, ,$$(call notdomain,$($(2)_SITE))))
+$(2)_SRC_PATH = $$(@D)/gopath/src/$$($(1)_src_path)/$(1)
+
+#
+# Configure step. Only define it if not already defined by the package
+# .mk file. And take care of the differences between host and target
+# packages.
+#
+ifndef $(2)_CONFIGURE_CMDS
+define $(2)_CONFIGURE_CMDS
+ mkdir -p $$(@D)/gopath/bin
+ mkdir -p $$(@D)/gopath/src/$$($(1)_src_path)
+ ln -sf $$(@D) $$($(2)_SRC_PATH)
+endef
+endif
+
+#
+# Build step. Only define it if not already defined by the package .mk file.
+# There is no differences between host and target packages.
+#
+ifndef $(2)_BUILD_CMDS
+define $(2)_BUILD_CMDS
+ cd $$($(2)_SRC_PATH) && $$($(2)_MAKE_ENV) $(HOST_DIR)/bin/go build \
+ -o $$($(2)_EXECUTABLE) -v $$($(2)_BUILD_OPTS)
+endef
+endif
+
+#
+# Host installation step. Only define it if not already defined by the
+# package .mk file.
+#
+ifndef $(2)_INSTALL_CMDS
+define $(2)_INSTALL_CMDS
+ $(INSTALL) -D -m 0755 $$($(2)_EXECUTABLE) $(HOST_DIR)/usr/bin/
+endef
+endif
+
+#
+# Target installation step. Only define it if not already defined by the
+# package .mk file.
+#
+ifndef $(2)_INSTALL_TARGET_CMDS
+define $(2)_INSTALL_TARGET_CMDS
+ $(INSTALL) -D -m 0755 $$($(2)_EXECUTABLE) $(TARGET_DIR)/usr/bin/
+endef
+endif
+
+# Call the generic package infrastructure to generate the necessary make
+# targets
+$(call inner-generic-package,$(1),$(2),$(3),$(4))
+
+endef # inner-golang-package
+
+################################################################################
+# golang-package -- the target generator macro for Go packages
+################################################################################
+
+golang-package = $(call inner-golang-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
+host-golang-package = $(call inner-golang-package,host-$(pkgname),$(call UPPERCASE,host-$(pkgname)),$(call UPPERCASE,$(pkgname)),host)
+
This patch adds a new infrastructure for golang based packages. Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com> --- package/Makefile.in | 1 + package/pkg-golang.mk | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 122 insertions(+) create mode 100644 package/pkg-golang.mk