1 ################################################################################
5 ################################################################################
8 GO_SITE = https://storage.googleapis.com/golang
9 GO_SOURCE = go$(GO_VERSION).src.tar.gz
11 GO_LICENSE = BSD-3-Clause
12 GO_LICENSE_FILES = LICENSE
16 ifeq ($(BR2_ARM_CPU_ARMV5),y)
18 else ifeq ($(BR2_ARM_CPU_ARMV6),y)
20 else ifeq ($(BR2_ARM_CPU_ARMV7A),y)
23 else ifeq ($(BR2_aarch64),y)
25 else ifeq ($(BR2_i386),y)
27 else ifeq ($(BR2_x86_64),y)
29 else ifeq ($(BR2_powerpc64),y)
31 else ifeq ($(BR2_powerpc64le),y)
33 else ifeq ($(BR2_mips64),y)
35 else ifeq ($(BR2_mips64el),y)
39 HOST_GO_DEPENDENCIES = host-go-bootstrap
40 HOST_GO_ROOT = $(HOST_DIR)/lib/go
42 # For the convienience of target packages.
43 HOST_GO_TOOLDIR = $(HOST_GO_ROOT)/pkg/tool/linux_$(GO_GOARCH)
44 HOST_GO_TARGET_ENV = \
46 GOROOT="$(HOST_GO_ROOT)" \
49 GOTOOLDIR="$(HOST_GO_TOOLDIR)"
51 # The go compiler's cgo support uses threads. If BR2_TOOLCHAIN_HAS_THREADS is
52 # set, build in cgo support for any go programs that may need it. Note that
53 # any target package needing cgo support must include
54 # 'depends on BR2_TOOLCHAIN_HAS_THREADS' in its config file.
55 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
56 HOST_GO_CGO_ENABLED = 1
58 HOST_GO_CGO_ENABLED = 0
61 # The go build system doesn't have the notion of cross compiling, but just the
62 # notion of architecture. When the host and target architectures are different
63 # it expects to be given a target cross compiler in CC_FOR_TARGET. When the
64 # architectures are the same it will use CC_FOR_TARGET for both host and target
65 # compilation. To work around this limitation build and install a set of
66 # compiler and tool binaries built with CC_FOR_TARGET set to the host compiler.
67 # Also, the go build system is not compatible with ccache, so use
68 # HOSTCC_NOCCACHE. See https://github.com/golang/go/issues/11685.
70 GOROOT_BOOTSTRAP=$(HOST_GO_BOOTSTRAP_ROOT) \
71 GOROOT_FINAL=$(HOST_GO_ROOT) \
75 $(if $(GO_GOARM),GOARM=$(GO_GOARM)) \
77 CC=$(HOSTCC_NOCCACHE) \
78 CXX=$(HOSTCXX_NOCCACHE)
81 CC_FOR_TARGET="$(TARGET_CC)" \
82 CXX_FOR_TARGET="$(TARGET_CXX)"
85 CC_FOR_TARGET=$(HOSTCC_NOCCACHE) \
86 CXX_FOR_TARGET=$(HOSTCXX_NOCCACHE)
88 HOST_GO_TMP = $(@D)/host-go-tmp
90 define HOST_GO_BUILD_CMDS
92 $(HOST_GO_MAKE_ENV) $(HOST_GO_HOST_CC) CGO_ENABLED=0 ./make.bash
93 mkdir -p $(HOST_GO_TMP)
94 mv $(@D)/pkg/tool $(HOST_GO_TMP)/
95 mv $(@D)/bin/ $(HOST_GO_TMP)/
97 $(HOST_GO_MAKE_ENV) $(HOST_GO_TARGET_CC) CGO_ENABLED=$(HOST_GO_CGO_ENABLED) ./make.bash
100 define HOST_GO_INSTALL_CMDS
101 $(INSTALL) -D -m 0755 $(HOST_GO_TMP)/bin/go $(HOST_GO_ROOT)/bin/go
102 $(INSTALL) -D -m 0755 $(HOST_GO_TMP)/bin/gofmt $(HOST_GO_ROOT)/bin/gofmt
104 ln -sf ../lib/go/bin/go $(HOST_DIR)/bin/
105 ln -sf ../lib/go/bin/gofmt $(HOST_DIR)/bin/
107 cp -a $(@D)/lib $(HOST_GO_ROOT)/
109 mkdir -p $(HOST_GO_ROOT)/pkg
110 cp -a $(@D)/pkg/include $(@D)/pkg/linux_* $(HOST_GO_ROOT)/pkg/
111 cp -a $(HOST_GO_TMP)/tool $(HOST_GO_ROOT)/pkg/
113 # There is a known issue which requires the go sources to be installed
114 # https://golang.org/issue/2775
115 cp -a $(@D)/src $(HOST_GO_ROOT)/
117 # Set all file timestamps to prevent the go compiler from rebuilding any
118 # built in packages when programs are built.
119 find $(HOST_GO_ROOT) -type f -exec touch -r $(HOST_GO_TMP)/bin/go {} \;
122 $(eval $(host-generic-package))