7afd262da0
The Go compiler needs to know the "import path" to the root of package source repositories. Previously, this was done by creating a fake _gopath in the build directory and symlinking the package source into that path. Go has deprecated the GOPATH mechanism in favor of a new approach - Modules - which specifies the root import path (and dependencies) in a "go.mod" file. This commit moves Buildroot to use the new go.mod approach, which requires: - Passing GO111MODULE=on when building host or target Go packages. - Passing GOPROXY=off and -mod=vendor to prevent the Go module system from downloading by itself sources from the Internet. We currently only support Go packages that have all their dependencies in their source tree in "vendor" directories. - Specifying a <pkg>_GOMOD variable, which is used both to create a minimal go.mod file in the package source tree if it exists, and to invoke the right build targets. Indeed, all elements in <pkg>_BUILD_TARGETS are now relative to <pkg>_GOMOD. Reference: https://github.com/golang/go/wiki/Modules Signed-off-by: Christian Stewart <christian@paral.in> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
149 lines
4.2 KiB
Makefile
149 lines
4.2 KiB
Makefile
################################################################################
|
|
#
|
|
# go
|
|
#
|
|
################################################################################
|
|
|
|
GO_VERSION = 1.13.14
|
|
GO_SITE = https://storage.googleapis.com/golang
|
|
GO_SOURCE = go$(GO_VERSION).src.tar.gz
|
|
|
|
GO_LICENSE = BSD-3-Clause
|
|
GO_LICENSE_FILES = LICENSE
|
|
|
|
HOST_GO_DEPENDENCIES = host-go-bootstrap
|
|
HOST_GO_GOPATH = $(HOST_DIR)/usr/share/go-path
|
|
HOST_GO_HOST_CACHE = $(HOST_DIR)/usr/share/host-go-cache
|
|
HOST_GO_ROOT = $(HOST_DIR)/lib/go
|
|
HOST_GO_TARGET_CACHE = $(HOST_DIR)/usr/share/go-cache
|
|
|
|
# We pass an empty GOBIN, otherwise "go install: cannot install
|
|
# cross-compiled binaries when GOBIN is set"
|
|
HOST_GO_COMMON_ENV = \
|
|
GO111MODULE=on \
|
|
GOFLAGS=-mod=vendor \
|
|
GOROOT="$(HOST_GO_ROOT)" \
|
|
GOPATH="$(HOST_GO_GOPATH)" \
|
|
GOPROXY=off \
|
|
PATH=$(BR_PATH) \
|
|
GOBIN= \
|
|
CGO_ENABLED=$(HOST_GO_CGO_ENABLED)
|
|
|
|
ifeq ($(BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS),y)
|
|
|
|
ifeq ($(BR2_arm),y)
|
|
GO_GOARCH = arm
|
|
ifeq ($(BR2_ARM_CPU_ARMV5),y)
|
|
GO_GOARM = 5
|
|
else ifeq ($(BR2_ARM_CPU_ARMV6),y)
|
|
GO_GOARM = 6
|
|
else ifeq ($(BR2_ARM_CPU_ARMV7A),y)
|
|
GO_GOARM = 7
|
|
endif
|
|
else ifeq ($(BR2_aarch64),y)
|
|
GO_GOARCH = arm64
|
|
else ifeq ($(BR2_i386),y)
|
|
GO_GOARCH = 386
|
|
else ifeq ($(BR2_x86_64),y)
|
|
GO_GOARCH = amd64
|
|
else ifeq ($(BR2_powerpc64),y)
|
|
GO_GOARCH = ppc64
|
|
else ifeq ($(BR2_powerpc64le),y)
|
|
GO_GOARCH = ppc64le
|
|
else ifeq ($(BR2_mips64),y)
|
|
GO_GOARCH = mips64
|
|
else ifeq ($(BR2_mips64el),y)
|
|
GO_GOARCH = mips64le
|
|
endif
|
|
|
|
# For the convienience of target packages.
|
|
HOST_GO_TOOLDIR = $(HOST_GO_ROOT)/pkg/tool/linux_$(GO_GOARCH)
|
|
HOST_GO_TARGET_ENV = \
|
|
$(HOST_GO_COMMON_ENV) \
|
|
GOARCH=$(GO_GOARCH) \
|
|
GOCACHE="$(HOST_GO_TARGET_CACHE)" \
|
|
CC="$(TARGET_CC)" \
|
|
CXX="$(TARGET_CXX)" \
|
|
CGO_CFLAGS="$(TARGET_CFLAGS)" \
|
|
CGO_CXXFLAGS="$(TARGET_CXXFLAGS)" \
|
|
CGO_LDFLAGS="$(TARGET_LDFLAGS)" \
|
|
GOTOOLDIR="$(HOST_GO_TOOLDIR)"
|
|
|
|
# The go compiler's cgo support uses threads. If BR2_TOOLCHAIN_HAS_THREADS is
|
|
# set, build in cgo support for any go programs that may need it. Note that
|
|
# any target package needing cgo support must include
|
|
# 'depends on BR2_TOOLCHAIN_HAS_THREADS' in its config file.
|
|
ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
|
|
HOST_GO_CGO_ENABLED = 1
|
|
else
|
|
HOST_GO_CGO_ENABLED = 0
|
|
endif
|
|
|
|
HOST_GO_CROSS_ENV = \
|
|
CC_FOR_TARGET="$(TARGET_CC)" \
|
|
CXX_FOR_TARGET="$(TARGET_CXX)" \
|
|
GOARCH=$(GO_GOARCH) \
|
|
$(if $(GO_GOARM),GOARM=$(GO_GOARM)) \
|
|
GO_ASSUME_CROSSCOMPILING=1
|
|
|
|
else # !BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
|
|
# host-go can still be used to build packages for the host. No need to set all
|
|
# the arch stuff since we will not be cross-compiling.
|
|
HOST_GO_CGO_ENABLED = 1
|
|
endif # BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
|
|
|
|
# For the convenience of host golang packages
|
|
HOST_GO_HOST_ENV = \
|
|
$(HOST_GO_COMMON_ENV) \
|
|
GOARCH="" \
|
|
GOCACHE="$(HOST_GO_HOST_CACHE)" \
|
|
CC="$(HOST_CCNOCCACHE)" \
|
|
CXX="$(HOST_CXXNOCCACHE)" \
|
|
CGO_CFLAGS="$(HOST_CFLAGS)" \
|
|
CGO_CXXFLAGS="$(HOST_CXXFLAGS)" \
|
|
CGO_LDFLAGS="$(HOST_LDFLAGS)"
|
|
|
|
# The go build system is not compatible with ccache, so use
|
|
# HOSTCC_NOCCACHE. See https://github.com/golang/go/issues/11685.
|
|
HOST_GO_MAKE_ENV = \
|
|
GO111MODULE=off \
|
|
GOCACHE=$(HOST_GO_HOST_CACHE) \
|
|
GOROOT_BOOTSTRAP=$(HOST_GO_BOOTSTRAP_ROOT) \
|
|
GOROOT_FINAL=$(HOST_GO_ROOT) \
|
|
GOROOT="$(@D)" \
|
|
GOBIN="$(@D)/bin" \
|
|
GOOS=linux \
|
|
CC=$(HOSTCC_NOCCACHE) \
|
|
CXX=$(HOSTCXX_NOCCACHE) \
|
|
CGO_ENABLED=$(HOST_GO_CGO_ENABLED) \
|
|
$(HOST_GO_CROSS_ENV)
|
|
|
|
define HOST_GO_BUILD_CMDS
|
|
cd $(@D)/src && \
|
|
$(HOST_GO_MAKE_ENV) ./make.bash $(if $(VERBOSE),-v)
|
|
endef
|
|
|
|
define HOST_GO_INSTALL_CMDS
|
|
$(INSTALL) -D -m 0755 $(@D)/bin/go $(HOST_GO_ROOT)/bin/go
|
|
$(INSTALL) -D -m 0755 $(@D)/bin/gofmt $(HOST_GO_ROOT)/bin/gofmt
|
|
|
|
ln -sf ../lib/go/bin/go $(HOST_DIR)/bin/
|
|
ln -sf ../lib/go/bin/gofmt $(HOST_DIR)/bin/
|
|
|
|
cp -a $(@D)/lib $(HOST_GO_ROOT)/
|
|
|
|
mkdir -p $(HOST_GO_ROOT)/pkg
|
|
cp -a $(@D)/pkg/include $(@D)/pkg/linux_* $(HOST_GO_ROOT)/pkg/
|
|
cp -a $(@D)/pkg/tool $(HOST_GO_ROOT)/pkg/
|
|
|
|
# There is a known issue which requires the go sources to be installed
|
|
# https://golang.org/issue/2775
|
|
cp -a $(@D)/src $(HOST_GO_ROOT)/
|
|
|
|
# Set all file timestamps to prevent the go compiler from rebuilding any
|
|
# built in packages when programs are built.
|
|
find $(HOST_GO_ROOT) -type f -exec touch -r $(@D)/bin/go {} \;
|
|
endef
|
|
|
|
$(eval $(host-generic-package))
|