package/go/go.mk

   1 ################################################################################
   2 #
   3 # go
   4 #
   5 ################################################################################
   6
   7 GO_VERSION = 1.7.4
   8 GO_SITE = https://storage.googleapis.com/golang
   9 GO_SOURCE = go$(GO_VERSION).src.tar.gz
  10
  11 GO_LICENSE = BSD-3c
  12 GO_LICENSE_FILES = LICENSE
  13
  14 ifeq ($(BR2_arm),y)
  15 GO_GOARCH = arm
  16 ifeq ($(BR2_ARM_CPU_ARMV5),y)
  17 GO_GOARM = 5
  18 else ifeq ($(BR2_ARM_CPU_ARMV6),y)
  19 GO_GOARM = 6
  20 else ifeq ($(BR2_ARM_CPU_ARMV7A),y)
  21 GO_GOARM = 7
  22 endif
  23 else ifeq ($(BR2_aarch64),y)
  24 GO_GOARCH = arm64
  25 else ifeq ($(BR2_i386),y)
  26 GO_GOARCH = 386
  27 else ifeq ($(BR2_x86_64),y)
  28 GO_GOARCH = amd64
  29 else ifeq ($(BR2_powerpc64),y)
  30 GO_GOARCH = ppc64
  31 else ifeq ($(BR2_powerpc64le),y)
  32 GO_GOARCH = ppc64le
  33 else ifeq ($(BR2_mips64),y)
  34 GO_GOARCH = mips64
  35 else ifeq ($(BR2_mips64el),y)
  36 GO_GOARCH = mips64le
  37 endif
  38
  39 HOST_GO_DEPENDENCIES = host-go-bootstrap
  40 HOST_GO_ROOT = $(HOST_DIR)/usr/lib/go
  41
  42 # For the convienience of target packages.
  43 HOST_GO_TOOLDIR = $(HOST_GO_ROOT)/pkg/tool/linux_$(GO_GOARCH)
  44 HOST_GO_TARGET_ENV = \
  45         GOARCH=$(GO_GOARCH) \
  46         GOROOT="$(HOST_GO_ROOT)" \
  47         CC="$(TARGET_CC)" \
  48         CXX="$(TARGET_CXX)" \
  49         GOTOOLDIR="$(HOST_GO_TOOLDIR)"
  50
  51 # The go compiler's cgo support uses threads.  If BR2_TOOLCHAIN_HAS_THREADS is
  52 # set, build in cgo support for any go programs that may need it.  Note that
  53 # any target package needing cgo support must include
  54 # 'depends on BR2_TOOLCHAIN_HAS_THREADS' in its config file.
  55 ifeq (BR2_TOOLCHAIN_HAS_THREADS,y)
  56 HOST_GO_CGO_ENABLED = 1
  57 else
  58 HOST_GO_CGO_ENABLED = 0
  59 endif
  60
  61 # The go build system doesn't have the notion of cross compiling, but just the
  62 # notion of architecture.  When the host and target architectures are different
  63 # it expects to be given a target cross compiler in CC_FOR_TARGET.  When the
  64 # architectures are the same it will use CC_FOR_TARGET for both host and target
  65 # compilation.  To work around this limitation build and install a set of
  66 # compiler and tool binaries built with CC_FOR_TARGET set to the host compiler.
  67 # Also, the go build system is not compatible with ccache, so use
  68 # HOSTCC_NOCCACHE.  See https://github.com/golang/go/issues/11685.
  69 HOST_GO_MAKE_ENV = \
  70         GOROOT_BOOTSTRAP=$(HOST_GO_BOOTSTRAP_ROOT) \
  71         GOROOT_FINAL=$(HOST_GO_ROOT) \
  72         GOROOT="$(@D)" \
  73         GOBIN="$(@D)/bin" \
  74         GOARCH=$(GO_GOARCH) \
  75         $(if $(GO_GOARM),GOARM=$(GO_GOARM)) \
  76         GOOS=linux \
  77         CGO_ENABLED=$(HOST_GO_CGO_ENABLED) \
  78         CC=$(HOSTCC_NOCCACHE)
  79
  80 HOST_GO_TARGET_CC = \
  81         CC_FOR_TARGET="$(TARGET_CC)" \
  82         CXX_FOR_TARGET="$(TARGET_CXX)"
  83
  84 HOST_GO_HOST_CC = \
  85         CC_FOR_TARGET=$(HOSTCC_NOCCACHE) \
  86         CXX_FOR_TARGET=$(HOSTCC_NOCCACHE)
  87
  88 HOST_GO_TMP = $(@D)/host-go-tmp
  89
  90 define HOST_GO_BUILD_CMDS
  91         cd $(@D)/src && $(HOST_GO_MAKE_ENV) $(HOST_GO_HOST_CC) ./make.bash
  92         mkdir -p $(HOST_GO_TMP)
  93         mv $(@D)/pkg/tool $(HOST_GO_TMP)/
  94         mv $(@D)/bin/ $(HOST_GO_TMP)/
  95         cd $(@D)/src && $(HOST_GO_MAKE_ENV) $(HOST_GO_TARGET_CC) ./make.bash
  96 endef
  97
  98 define HOST_GO_INSTALL_CMDS
  99         $(INSTALL) -D -m 0755 $(HOST_GO_TMP)/bin/go $(HOST_GO_ROOT)/bin/go
 100         $(INSTALL) -D -m 0755 $(HOST_GO_TMP)/bin/gofmt $(HOST_GO_ROOT)/bin/gofmt
 101
 102         ln -sf ../lib/go/bin/go $(HOST_DIR)/usr/bin/
 103         ln -sf ../lib/go/bin/gofmt $(HOST_DIR)/usr/bin/
 104
 105         cp -a $(@D)/lib $(HOST_GO_ROOT)/
 106
 107         mkdir -p $(HOST_GO_ROOT)/pkg
 108         cp -a $(@D)/pkg/include $(@D)/pkg/linux_* $(HOST_GO_ROOT)/pkg/
 109         cp -a $(HOST_GO_TMP)/tool $(HOST_GO_ROOT)/pkg/
 110
 111         # There is a known issue which requires the go sources to be installed
 112         # https://golang.org/issue/2775
 113         cp -a $(@D)/src $(HOST_GO_ROOT)/
 114
 115         # Set all file timestamps to prevent the go compiler from rebuilding any
 116         # built in packages when programs are built.
 117         find $(HOST_GO_ROOT) -type f -exec touch -r $(HOST_GO_TMP)/bin/go {} \;
 118 endef
 119
 120 $(eval $(host-generic-package))