lang/golang/golang-values.mk

   1 #
   2 # Copyright (C) 2018 Jeffery To
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7
   8 ifeq ($(origin GO_INCLUDE_DIR),undefined)
   9   GO_INCLUDE_DIR:=$(dir $(lastword $(MAKEFILE_LIST)))
  10 endif
  11
  12 include $(GO_INCLUDE_DIR)/golang-version.mk
  13
  14
  15 unexport \
  16   GOARCH GOBIN GOCACHE GODEBUG GOFLAGS GOHOSTARCH GOOS GOPATH GORACE GOROOT GOTMPDIR GCCGO \
  17   CGO_ENABLED \
  18   CGO_CFLAGS CGO_CFLAGS_ALLOW CGO_CFLAGS_DISALLOW \
  19   CGO_CPPFLAGS CGO_CPPFLAGS_ALLOW CGO_CPPFLAGS_DISALLOW \
  20   CGO_CXXFLAGS CGO_CXXFLAGS_ALLOW CGO_CXXFLAGS_DISALLOW \
  21   CGO_FFLAGS CGO_FFLAGS_ALLOW CGO_FFLAGS_DISALLOW \
  22   CGO_LDFLAGS CGO_LDFLAGS_ALLOW CGO_LDFLAGS_DISALLOW \
  23   GOARM GO386 GOMIPS GOMIPS64 \
  24   GO111MODULE \
  25   GOROOT_FINAL GO_EXTLINK_ENABLED GIT_ALLOW_PROTOCOL \
  26   CC_FOR_TARGET CXX_FOR_TARGET GO_DISTFLAGS GO_GCFLAGS GO_LDFLAGS GOBUILDTIMELOGFILE GOROOT_BOOTSTRAP \
  27   BOOT_GO_GCFLAGS GOEXPERIMENT GOBOOTSTRAP_TOOLEXEC
  28   # there are more magic environment variables to track down, but ain't nobody got time for that
  29
  30 go_arch=$(subst \
  31   aarch64,arm64,$(subst \
  32   i386,386,$(subst \
  33   mipsel,mipsle,$(subst \
  34   mips64el,mips64le,$(subst \
  35   powerpc64,ppc64,$(subst \
  36   x86_64,amd64,$(1)))))))
  37
  38 GO_OS:=linux
  39 GO_ARCH:=$(call go_arch,$(ARCH))
  40 GO_OS_ARCH:=$(GO_OS)_$(GO_ARCH)
  41
  42 GO_HOST_OS:=$(call tolower,$(HOST_OS))
  43 GO_HOST_ARCH:=$(call go_arch,$(subst \
  44   armv6l,arm,$(subst \
  45   armv7l,arm,$(subst \
  46   i486,i386,$(subst \
  47   i586,i386,$(subst \
  48   i686,i386,$(HOST_ARCH)))))))
  49 GO_HOST_OS_ARCH:=$(GO_HOST_OS)_$(GO_HOST_ARCH)
  50
  51 GO_HOST_TARGET_SAME:=$(if $(and $(findstring $(GO_OS_ARCH),$(GO_HOST_OS_ARCH)),$(findstring $(GO_HOST_OS_ARCH),$(GO_OS_ARCH))),1)
  52 GO_HOST_TARGET_DIFFERENT:=$(if $(GO_HOST_TARGET_SAME),,1)
  53
  54 # ensure binaries can run on older CPUs
  55 GO_386:=387
  56
  57 GO_ARM:=$(if $(CONFIG_arm_v7),7,$(if $(CONFIG_arm_v6),6,$(if $(findstring $(GO_ARCH),arm),5,)))
  58
  59 GO_MIPS:=$(if $(filter $(GO_ARCH),mips mipsle),$(if $(CONFIG_HAS_FPU),hardfloat,softfloat),)
  60
  61 GO_MIPS64:=$(if $(filter $(GO_ARCH),mips64 mips64le),$(if $(CONFIG_HAS_FPU),hardfloat,softfloat),)
  62
  63 # -fno-plt: causes "unexpected GOT reloc for non-dynamic symbol" errors
  64 # -mips32r2: conflicts with -march=mips32 set by go
  65 GO_CFLAGS_TO_REMOVE:=$(if \
  66 $(filter $(GO_ARCH),386),-fno-plt,$(if \
  67 $(filter $(GO_ARCH),mips mipsle),-mips32r2,))
  68
  69 GO_ARCH_DEPENDS:=@(aarch64||arm||i386||i686||mips||mips64||mips64el||mipsel||powerpc64||x86_64)
  70
  71 GO_TARGET_PREFIX:=/usr
  72 GO_TARGET_VERSION_ID:=$(GO_VERSION_MAJOR_MINOR)
  73 GO_TARGET_ROOT:=$(GO_TARGET_PREFIX)/lib/go-$(GO_TARGET_VERSION_ID)