1a44f9242c
Building go with cgo support needs to build some .c files to generate target
support code, and thus calls the cross C compiler, which is failing when the
toolchain is not built before host-go:
>>> host-go 1.21.1 Building
cd .../build/host-go-1.21.1/src && GO111MODULE=off GOCACHE=.../per-package/host-go/host/share/host-go-cache GOROOT_BOOTSTRAP=.../per-package/host-go/host/lib/go-1.19.11 GOROOT_FINAL=.../per-package/host-go/host/lib/go GOROOT=".../build/host-go-1.21.1" GOBIN=".../build/host-go-1.21.1/bin" GOOS=linux CC=/usr/bin/gcc CXX=/usr/bin/g++ CGO_ENABLED=1 CC_FOR_TARGET=".../per-package/host-go/host/bin/arm-linux-gcc" CXX_FOR_TARGET=".../per-package/host-go/host/bin/arm-linux-g++" GOOS="linux" GOARCH=arm GOARM=6 GO_ASSUME_CROSSCOMPILING=1 ./make.bash
Building Go cmd/dist using .../per-package/host-go/host/lib/go-1.19.11. (go1.19.11 linux/amd64)
go tool dist: cannot invoke C compiler [".../per-package/host-go/host/bin/arm-linux-gcc"]: fork/exec .../per-package/host-go/host/bin/arm-linux-gcc: no such file or directory
Go needs a system C compiler for use with cgo.
To set a C compiler, set CC=the-compiler.
To disable cgo, set CGO_ENABLED=0.
This happens systematically with PPD, and happens without PPD when
host-go is explicitly built (by running: "make host-go").
Since only CGO support needs to compile C files, only add the toolchain
dependency in that case.
When the target is not supported by go, then there is obviously no need
to depend on the toolchain (even if we unconditionally enable cgo
support in only-for-the-host host-go).
Signed-off-by: Christian Stewart <christian@aperture.us>
[yann.morin@orange.com:
- only add the toolchain dependency for target cgo
- reword commit log
]
Signed-off-by: Yann E. MORIN <yann.morin@orange.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Anisse Astier <anisse@astier.eu>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
168 lines
4.7 KiB
Makefile
168 lines
4.7 KiB
Makefile
################################################################################
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#
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# go
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#
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################################################################################
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GO_VERSION = 1.21.1
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GO_SITE = https://storage.googleapis.com/golang
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GO_SOURCE = go$(GO_VERSION).src.tar.gz
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GO_LICENSE = BSD-3-Clause
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GO_LICENSE_FILES = LICENSE
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GO_CPE_ID_VENDOR = golang
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HOST_GO_DEPENDENCIES = host-go-bootstrap-stage2
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HOST_GO_GOPATH = $(HOST_DIR)/share/go-path
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HOST_GO_HOST_CACHE = $(HOST_DIR)/share/host-go-cache
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HOST_GO_ROOT = $(HOST_DIR)/lib/go
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HOST_GO_TARGET_CACHE = $(HOST_DIR)/share/go-cache
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# We pass an empty GOBIN, otherwise "go install: cannot install
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# cross-compiled binaries when GOBIN is set"
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HOST_GO_COMMON_ENV = \
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GO111MODULE=on \
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GOFLAGS=-mod=vendor \
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GOROOT="$(HOST_GO_ROOT)" \
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GOPATH="$(HOST_GO_GOPATH)" \
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GOCACHE="$(HOST_GO_TARGET_CACHE)" \
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GOMODCACHE="$(HOST_GO_GOPATH)/pkg/mod" \
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GOPROXY=off \
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GOTOOLCHAIN=local \
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PATH=$(BR_PATH) \
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GOBIN= \
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CGO_ENABLED=$(HOST_GO_CGO_ENABLED)
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ifeq ($(BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS),y)
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ifeq ($(BR2_arm),y)
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GO_GOARCH = arm
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ifeq ($(BR2_ARM_CPU_ARMV5),y)
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GO_GOARM = 5
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else ifeq ($(BR2_ARM_CPU_ARMV6),y)
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GO_GOARM = 6
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else ifeq ($(BR2_ARM_CPU_ARMV7A),y)
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GO_GOARM = 7
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else ifeq ($(BR2_ARM_CPU_ARMV8A),y)
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# Go doesn't support 32-bit GOARM=8 (https://github.com/golang/go/issues/29373)
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# but can still benefit from armv7 optimisations
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GO_GOARM = 7
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endif
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else ifeq ($(BR2_aarch64),y)
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GO_GOARCH = arm64
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else ifeq ($(BR2_i386),y)
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GO_GOARCH = 386
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# i386: use softfloat if no SSE2: https://golang.org/doc/go1.16#386
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ifneq ($(BR2_X86_CPU_HAS_SSE2),y)
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GO_GO386 = softfloat
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endif
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else ifeq ($(BR2_x86_64),y)
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GO_GOARCH = amd64
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else ifeq ($(BR2_powerpc64),y)
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GO_GOARCH = ppc64
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else ifeq ($(BR2_powerpc64le),y)
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GO_GOARCH = ppc64le
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else ifeq ($(BR2_mips64),y)
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GO_GOARCH = mips64
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else ifeq ($(BR2_mips64el),y)
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GO_GOARCH = mips64le
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else ifeq ($(BR2_riscv),y)
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GO_GOARCH = riscv64
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else ifeq ($(BR2_s390x),y)
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GO_GOARCH = s390x
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endif
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# For the convienience of target packages.
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HOST_GO_TOOLDIR = $(HOST_GO_ROOT)/pkg/tool/linux_$(GO_GOARCH)
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HOST_GO_TARGET_ENV = \
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$(HOST_GO_COMMON_ENV) \
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GOOS="linux" \
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GOARCH=$(GO_GOARCH) \
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CC="$(TARGET_CC)" \
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CXX="$(TARGET_CXX)" \
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CGO_CFLAGS="$(TARGET_CFLAGS)" \
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CGO_CXXFLAGS="$(TARGET_CXXFLAGS)" \
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CGO_LDFLAGS="$(TARGET_LDFLAGS)" \
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GOTOOLDIR="$(HOST_GO_TOOLDIR)"
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# The go compiler's cgo support uses threads. If BR2_TOOLCHAIN_HAS_THREADS is
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# set, build in cgo support for any go programs that may need it. Note that
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# any target package needing cgo support must include
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# 'depends on BR2_TOOLCHAIN_HAS_THREADS' in its config file.
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ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
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HOST_GO_DEPENDENCIES += toolchain
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HOST_GO_CGO_ENABLED = 1
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else
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HOST_GO_CGO_ENABLED = 0
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endif
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HOST_GO_CROSS_ENV = \
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CC_FOR_TARGET="$(TARGET_CC)" \
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CXX_FOR_TARGET="$(TARGET_CXX)" \
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GOOS="linux" \
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GOARCH=$(GO_GOARCH) \
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$(if $(GO_GO386),GO386=$(GO_GO386)) \
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$(if $(GO_GOARM),GOARM=$(GO_GOARM)) \
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GO_ASSUME_CROSSCOMPILING=1
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else # !BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
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# host-go can still be used to build packages for the host. No need to set all
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# the arch stuff since we will not be cross-compiling.
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HOST_GO_CGO_ENABLED = 1
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endif # BR2_PACKAGE_HOST_GO_TARGET_ARCH_SUPPORTS
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# For the convenience of host golang packages
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HOST_GO_HOST_ENV = \
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$(HOST_GO_COMMON_ENV) \
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GOOS="" \
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GOARCH="" \
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GOCACHE="$(HOST_GO_HOST_CACHE)" \
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CC="$(HOSTCC_NOCCACHE)" \
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CXX="$(HOSTCXX_NOCCACHE)" \
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CGO_CFLAGS="$(HOST_CFLAGS)" \
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CGO_CXXFLAGS="$(HOST_CXXFLAGS)" \
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CGO_LDFLAGS="$(HOST_LDFLAGS)"
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# The go build system is not compatible with ccache, so use
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# HOSTCC_NOCCACHE. See https://github.com/golang/go/issues/11685.
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HOST_GO_MAKE_ENV = \
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GO111MODULE=off \
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GOCACHE=$(HOST_GO_HOST_CACHE) \
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GOROOT_BOOTSTRAP=$(HOST_GO_BOOTSTRAP_STAGE2_ROOT) \
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GOROOT_FINAL=$(HOST_GO_ROOT) \
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GOROOT="$(@D)" \
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GOBIN="$(@D)/bin" \
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GOOS=linux \
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CC=$(HOSTCC_NOCCACHE) \
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CXX=$(HOSTCXX_NOCCACHE) \
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CGO_ENABLED=$(HOST_GO_CGO_ENABLED) \
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$(HOST_GO_CROSS_ENV)
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define HOST_GO_BUILD_CMDS
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cd $(@D)/src && \
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$(HOST_GO_MAKE_ENV) ./make.bash $(if $(VERBOSE),-v)
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endef
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define HOST_GO_INSTALL_CMDS
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$(INSTALL) -D -m 0755 $(@D)/bin/go $(HOST_GO_ROOT)/bin/go
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$(INSTALL) -D -m 0755 $(@D)/bin/gofmt $(HOST_GO_ROOT)/bin/gofmt
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ln -sf ../lib/go/bin/go $(HOST_DIR)/bin/
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ln -sf ../lib/go/bin/gofmt $(HOST_DIR)/bin/
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cp -a $(@D)/lib $(HOST_GO_ROOT)/
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mkdir -p $(HOST_GO_ROOT)/pkg
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cp -a $(@D)/pkg/include $(HOST_GO_ROOT)/pkg/
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cp -a $(@D)/pkg/tool $(HOST_GO_ROOT)/pkg/
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# The Go sources must be installed to the host/ tree for the Go stdlib.
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cp -a $(@D)/src $(HOST_GO_ROOT)/
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# Set file timestamps to prevent the Go compiler from rebuilding the stdlib
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# when compiling other programs.
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find $(HOST_GO_ROOT) -type f -exec touch -r $(@D)/bin/go {} \;
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endef
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$(eval $(host-generic-package))
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