You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
235 lines
5.2 KiB
235 lines
5.2 KiB
#
|
|
# Copyright (C) 2018, 2020 Jeffery To
|
|
#
|
|
# This is free software, licensed under the GNU General Public License v2.
|
|
# See /LICENSE for more information.
|
|
#
|
|
|
|
ifeq ($(origin GO_INCLUDE_DIR),undefined)
|
|
GO_INCLUDE_DIR:=$(dir $(lastword $(MAKEFILE_LIST)))
|
|
endif
|
|
|
|
|
|
# Unset environment variables
|
|
# There are more magic variables to track down, but ain't nobody got time for that
|
|
|
|
# From https://golang.org/cmd/go/#hdr-Environment_variables
|
|
|
|
# General-purpose environment variables:
|
|
unexport \
|
|
GCCGO \
|
|
GOARCH \
|
|
GOBIN \
|
|
GOCACHE \
|
|
GODEBUG \
|
|
GOENV \
|
|
GOFLAGS \
|
|
GOOS \
|
|
GOPATH \
|
|
GOROOT \
|
|
GOTMPDIR
|
|
# Unmodified:
|
|
# GOINSECURE
|
|
# GOPRIVATE
|
|
# GOPROXY
|
|
# GONOPROXY
|
|
# GOSUMDB
|
|
# GONOSUMDB
|
|
|
|
# Environment variables for use with cgo:
|
|
unexport \
|
|
AR \
|
|
CC \
|
|
CGO_ENABLED \
|
|
CGO_CFLAGS CGO_CFLAGS_ALLOW CGO_CFLAGS_DISALLOW \
|
|
CGO_CPPFLAGS CGO_CPPFLAGS_ALLOW CGO_CPPFLAGS_DISALLOW \
|
|
CGO_CXXFLAGS CGO_CXXFLAGS_ALLOW CGO_CXXFLAGS_DISALLOW \
|
|
CGO_FFLAGS CGO_FFLAGS_ALLOW CGO_FFLAGS_DISALLOW \
|
|
CGO_LDFLAGS CGO_LDFLAGS_ALLOW CGO_LDFLAGS_DISALLOW \
|
|
CXX \
|
|
FC
|
|
# Unmodified:
|
|
# PKG_CONFIG
|
|
|
|
# Architecture-specific environment variables:
|
|
unexport \
|
|
GOARM \
|
|
GO386 \
|
|
GOMIPS \
|
|
GOMIPS64 \
|
|
GOWASM
|
|
|
|
# Special-purpose environment variables:
|
|
unexport \
|
|
GCCGOTOOLDIR \
|
|
GOROOT_FINAL \
|
|
GO_EXTLINK_ENABLED
|
|
# Unmodified:
|
|
# GIT_ALLOW_PROTOCOL
|
|
|
|
# From https://golang.org/cmd/go/#hdr-Module_support
|
|
unexport \
|
|
GO111MODULE
|
|
|
|
# From https://golang.org/pkg/runtime/#hdr-Environment_Variables
|
|
unexport \
|
|
GOGC \
|
|
GOMAXPROCS \
|
|
GORACE \
|
|
GOTRACEBACK
|
|
|
|
# From https://golang.org/cmd/cgo/#hdr-Using_cgo_with_the_go_command
|
|
unexport \
|
|
CC_FOR_TARGET \
|
|
CXX_FOR_TARGET
|
|
# Todo:
|
|
# CC_FOR_${GOOS}_${GOARCH}
|
|
# CXX_FOR_${GOOS}_${GOARCH}
|
|
|
|
# From https://golang.org/doc/install/source#environment
|
|
unexport \
|
|
GOHOSTOS \
|
|
GOHOSTARCH \
|
|
GOPPC64
|
|
|
|
# From https://golang.org/src/make.bash
|
|
unexport \
|
|
GO_GCFLAGS \
|
|
GO_LDFLAGS \
|
|
GO_LDSO \
|
|
GO_DISTFLAGS \
|
|
GOBUILDTIMELOGFILE \
|
|
GOROOT_BOOTSTRAP
|
|
|
|
# From https://golang.org/doc/go1.9#parallel-compile
|
|
unexport \
|
|
GO19CONCURRENTCOMPILATION
|
|
|
|
# From https://golang.org/src/cmd/dist/build.go
|
|
unexport \
|
|
BOOT_GO_GCFLAGS \
|
|
BOOT_GO_LDFLAGS
|
|
|
|
# From https://golang.org/src/cmd/dist/buildtool.go
|
|
unexport \
|
|
GOBOOTSTRAP_TOOLEXEC
|
|
|
|
# From https://golang.org/src/cmd/internal/objabi/util.go
|
|
unexport \
|
|
GOEXPERIMENT
|
|
|
|
|
|
# GOOS / GOARCH
|
|
|
|
go_arch=$(subst \
|
|
aarch64,arm64,$(subst \
|
|
i386,386,$(subst \
|
|
mipsel,mipsle,$(subst \
|
|
mips64el,mips64le,$(subst \
|
|
powerpc64,ppc64,$(subst \
|
|
x86_64,amd64,$(1)))))))
|
|
|
|
GO_OS:=linux
|
|
GO_ARCH:=$(call go_arch,$(ARCH))
|
|
GO_OS_ARCH:=$(GO_OS)_$(GO_ARCH)
|
|
|
|
GO_HOST_OS:=$(call tolower,$(HOST_OS))
|
|
GO_HOST_ARCH:=$(call go_arch,$(subst \
|
|
armv6l,arm,$(subst \
|
|
armv7l,arm,$(subst \
|
|
i686,i386,$(HOST_ARCH)))))
|
|
GO_HOST_OS_ARCH:=$(GO_HOST_OS)_$(GO_HOST_ARCH)
|
|
|
|
ifeq ($(GO_OS_ARCH),$(GO_HOST_OS_ARCH))
|
|
GO_HOST_TARGET_SAME:=1
|
|
else
|
|
GO_HOST_TARGET_DIFFERENT:=1
|
|
endif
|
|
|
|
ifeq ($(GO_ARCH),386)
|
|
# ensure binaries can run on older CPUs
|
|
GO_386:=387
|
|
|
|
# -fno-plt: causes "unexpected GOT reloc for non-dynamic symbol" errors
|
|
GO_CFLAGS_TO_REMOVE:=-fno-plt
|
|
|
|
else ifeq ($(GO_ARCH),arm)
|
|
GO_TARGET_FPU:=$(word 2,$(subst +,$(space),$(call qstrip,$(CONFIG_CPU_TYPE))))
|
|
|
|
# FPU names from https://gcc.gnu.org/onlinedocs/gcc-8.3.0/gcc/ARM-Options.html#index-mfpu-1
|
|
# see also https://github.com/gcc-mirror/gcc/blob/gcc-8_3_0-release/gcc/config/arm/arm-cpus.in
|
|
#
|
|
# Assumptions:
|
|
#
|
|
# * -d16 variants (16 instead of 32 double-precision registers) acceptable
|
|
# Go doesn't appear to check the HWCAP_VFPv3D16 flag in
|
|
# https://github.com/golang/go/blob/release-branch.go1.13/src/runtime/os_linux_arm.go
|
|
#
|
|
# * Double-precision required
|
|
# Based on no evidence(!)
|
|
# Excludes vfpv3xd, vfpv3xd-fp16, fpv4-sp-d16, fpv5-sp-d16
|
|
|
|
GO_ARM_7_FPUS:= \
|
|
vfpv3 vfpv3-fp16 vfpv3-d16 vfpv3-d16-fp16 neon neon-vfpv3 neon-fp16 \
|
|
vfpv4 vfpv4-d16 neon-vfpv4 \
|
|
fpv5-d16 fp-armv8 neon-fp-armv8 crypto-neon-fp-armv8
|
|
|
|
GO_ARM_6_FPUS:=vfp vfpv2
|
|
|
|
ifneq ($(filter $(GO_TARGET_FPU),$(GO_ARM_7_FPUS)),)
|
|
GO_ARM:=7
|
|
else ifneq ($(filter $(GO_TARGET_FPU),$(GO_ARM_6_FPUS)),)
|
|
GO_ARM:=6
|
|
else
|
|
GO_ARM:=5
|
|
endif
|
|
|
|
else ifneq ($(filter $(GO_ARCH),mips mipsle),)
|
|
ifeq ($(CONFIG_HAS_FPU),y)
|
|
GO_MIPS:=hardfloat
|
|
else
|
|
GO_MIPS:=softfloat
|
|
endif
|
|
|
|
# -mips32r2: conflicts with -march=mips32 set by go
|
|
GO_CFLAGS_TO_REMOVE:=-mips32r2
|
|
|
|
else ifneq ($(filter $(GO_ARCH),mips64 mips64le),)
|
|
ifeq ($(CONFIG_HAS_FPU),y)
|
|
GO_MIPS64:=hardfloat
|
|
else
|
|
GO_MIPS64:=softfloat
|
|
endif
|
|
|
|
endif
|
|
|
|
|
|
# Target Go
|
|
|
|
GO_ARCH_DEPENDS:=@(aarch64||arm||i386||i686||mips||mips64||mips64el||mipsel||powerpc64||x86_64)
|
|
|
|
|
|
# ASLR/PIE
|
|
|
|
GO_PIE_SUPPORTED_OS_ARCH:= \
|
|
android_386 android_amd64 android_arm android_arm64 \
|
|
linux_386 linux_amd64 linux_arm linux_arm64 \
|
|
\
|
|
darwin_amd64 \
|
|
freebsd_amd64 \
|
|
\
|
|
aix_ppc64 \
|
|
\
|
|
linux_ppc64le linux_s390x
|
|
|
|
go_pie_install_suffix=$(if $(filter $(1),aix_ppc64),,shared)
|
|
|
|
ifneq ($(filter $(GO_HOST_OS_ARCH),$(GO_PIE_SUPPORTED_OS_ARCH)),)
|
|
GO_HOST_PIE_SUPPORTED:=1
|
|
GO_HOST_PIE_INSTALL_SUFFIX:=$(call go_pie_install_suffix,$(GO_HOST_OS_ARCH))
|
|
endif
|
|
|
|
ifneq ($(filter $(GO_OS_ARCH),$(GO_PIE_SUPPORTED_OS_ARCH)),)
|
|
GO_TARGET_PIE_SUPPORTED:=1
|
|
GO_TARGET_PIE_INSTALL_SUFFIX:=$(call go_pie_install_suffix,$(GO_OS_ARCH))
|
|
endif
|