4c6ac36d52
This fixes how GOARM is selected for arm platforms, based on support for VFP/VFPv3 rather than CPU version. Fixes #10967. Signed-off-by: Jeffery To <jeffery.to@gmail.com>
102 lines
3.4 KiB
Makefile
102 lines
3.4 KiB
Makefile
#
|
|
# Copyright (C) 2018 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
|
|
|
|
include $(GO_INCLUDE_DIR)/golang-version.mk
|
|
|
|
|
|
unexport \
|
|
GOARCH GOBIN GOCACHE GODEBUG GOHOSTARCH GOOS GOPATH GORACE GOROOT GOTMPDIR GCCGO \
|
|
CGO_ENABLED \
|
|
CGO_CFLAGS CGO_CFLAGS_ALLOW CGO_CFLAGS_DISALLOW \
|
|
CGO_CPPFLAGS CGO_CPPFLAGS_ALLOW CGO_CPPFLAGS_DISALLOW \
|
|
CGO_CXXFLAGS CGO_CXXFLAGS_ALLOW CGO_CXXFLAGS_DISALLOW \
|
|
CGO_FFLAGS CGO_FFLAGS_ALLOW CGO_FFLAGS_DISALLOW \
|
|
CGO_LDFLAGS CGO_LDFLAGS_ALLOW CGO_LDFLAGS_DISALLOW \
|
|
GOARM GO386 GOMIPS \
|
|
GOROOT_FINAL GO_EXTLINK_ENABLED GIT_ALLOW_PROTOCOL \
|
|
CC_FOR_TARGET CXX_FOR_TARGET GO_DISTFLAGS GO_GCFLAGS GO_LDFLAGS GOBUILDTIMELOGFILE GOROOT_BOOTSTRAP \
|
|
BOOT_GO_GCFLAGS GOEXPERIMENT GOBOOTSTRAP_TOOLEXEC
|
|
# there are more magic environment variables to track down, but ain't nobody got time for that
|
|
|
|
go_arch=$(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 \
|
|
i486,i386,$(subst \
|
|
i586,i386,$(subst \
|
|
i686,i386,$(HOST_ARCH)))))))
|
|
GO_HOST_OS_ARCH:=$(GO_HOST_OS)_$(GO_HOST_ARCH)
|
|
|
|
GO_HOST_TARGET_SAME:=$(if $(and $(findstring $(GO_OS_ARCH),$(GO_HOST_OS_ARCH)),$(findstring $(GO_HOST_OS_ARCH),$(GO_OS_ARCH))),1)
|
|
GO_HOST_TARGET_DIFFERENT:=$(if $(GO_HOST_TARGET_SAME),,1)
|
|
|
|
# ensure binaries can run on older CPUs
|
|
GO_386:=387
|
|
|
|
ifeq ($(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
|
|
endif
|
|
|
|
GO_MIPS:=$(if $(filter $(GO_ARCH),mips mipsle),$(if $(CONFIG_HAS_FPU),hardfloat,softfloat),)
|
|
|
|
# -fno-plt: causes "unexpected GOT reloc for non-dynamic symbol" errors
|
|
# -mips32r2: conflicts with -march=mips32 set by go
|
|
GO_CFLAGS_TO_REMOVE:=$(if \
|
|
$(filter $(GO_ARCH),386),-fno-plt,$(if \
|
|
$(filter $(GO_ARCH),mips mipsle),-mips32r2,))
|
|
|
|
# mips64 / mips64el doesn't have softfloat support yet
|
|
# https://github.com/golang/go/issues/14635
|
|
GO_ARCH_DEPENDS:=@(aarch64||arm||i386||i686||mips||mipsel||powerpc64||x86_64)
|
|
|
|
GO_TARGET_PREFIX:=/usr
|
|
GO_TARGET_VERSION_ID:=$(GO_VERSION_MAJOR_MINOR)
|
|
GO_TARGET_ROOT:=$(GO_TARGET_PREFIX)/lib/go-$(GO_TARGET_VERSION_ID)
|