deepcrayon
/
buildroot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

package/go: Build host tools with host CC 

The go build system doesn't have the notion of cross compiling, but just the
notion of architecture.  When the host and target architectures are different
it expects to be given a target cross compiler in CC_FOR_TARGET.  When the
architectures are the same it will use CC_FOR_TARGET for both host and target
compilation.  To work around this limitation build and install a set of
compiler and tool binaries built with CC_FOR_TARGET set to the host compiler.
Also, the go build system is not compatible with ccache, so use
HOSTCC_NOCCACHE.  See https://github.com/golang/go/issues/11685.

Fixes build errors like these:

  host/usr/bin/go: No such file or directory

  http://autobuild.buildroot.net/results/6664189a6f3a815978e8d0a1d7ef408ca47e2874/

Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016.08.x
Geoff Levand 2016-05-26 18:21:32 +00:00 committed by Thomas Petazzoni
parent b5630ad712
commit 60c5c96ae1
1 changed files with 25 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
package/go/go.mk
View File

@ -35,6 +35,14 @@ endif
HOST_GO_DEPENDENCIES = host-go-bootstrap
HOST_GO_ROOT = $(HOST_DIR)/usr/lib/go
# The go build system doesn't have the notion of cross compiling, but just the
# notion of architecture. When the host and target architectures are different
# it expects to be given a target cross compiler in CC_FOR_TARGET. When the
# architectures are the same it will use CC_FOR_TARGET for both host and target
# compilation. To work around this limitation build and install a set of
# compiler and tool binaries built with CC_FOR_TARGET set to the host compiler.
# Also, the go build system is not compatible with ccache, so use
# HOSTCC_NOCCACHE. See https://github.com/golang/go/issues/11685.
HOST_GO_MAKE_ENV = \
GOROOT_BOOTSTRAP=$(HOST_GO_BOOTSTRAP_ROOT) \
GOROOT_FINAL=$(HOST_GO_ROOT) \
@ -44,16 +52,29 @@ HOST_GO_MAKE_ENV = \
$(if $(GO_GOARM),GOARM=$(GO_GOARM)) \
GOOS=linux \
CGO_ENABLED=1 \
CC=$(HOSTCC_NOCCACHE)
HOST_GO_TARGET_CC = \
CC_FOR_TARGET=$(TARGET_CC) \
CXX_FOR_TARGET=$(TARGET_CXX)
HOST_GO_HOST_CC = \
CC_FOR_TARGET=$(HOSTCC_NOCCACHE) \
CXX_FOR_TARGET=$(HOSTCC_NOCCACHE)
HOST_GO_TMP = $(@D)/host-go-tmp
define HOST_GO_BUILD_CMDS
cd $(@D)/src && $(HOST_GO_MAKE_ENV) ./make.bash
cd $(@D)/src && $(HOST_GO_MAKE_ENV) $(HOST_GO_HOST_CC) ./make.bash
mkdir -p $(HOST_GO_TMP)
mv $(@D)/pkg/tool $(HOST_GO_TMP)/
mv $(@D)/bin/ $(HOST_GO_TMP)/
cd $(@D)/src && $(HOST_GO_MAKE_ENV) $(HOST_GO_TARGET_CC) ./make.bash
endef
define HOST_GO_INSTALL_CMDS
$(INSTALL) -D -m 0755 $(@D)/bin/go $(HOST_GO_ROOT)/bin/go
$(INSTALL) -D -m 0755 $(@D)/bin/gofmt $(HOST_GO_ROOT)/bin/gofmt
$(INSTALL) -D -m 0755 $(HOST_GO_TMP)/bin/go $(HOST_GO_ROOT)/bin/go
$(INSTALL) -D -m 0755 $(HOST_GO_TMP)/bin/gofmt $(HOST_GO_ROOT)/bin/gofmt
ln -sf ../lib/go/bin/go $(HOST_DIR)/usr/bin/
ln -sf ../lib/go/bin/gofmt $(HOST_DIR)/usr/bin/
@ -62,7 +83,7 @@ define HOST_GO_INSTALL_CMDS
mkdir -p $(HOST_GO_ROOT)/pkg
cp -a $(@D)/pkg/include $(@D)/pkg/linux_* $(HOST_GO_ROOT)/pkg/
cp -a $(@D)/pkg/tool $(HOST_GO_ROOT)/pkg/
cp -a $(HOST_GO_TMP)/tool $(HOST_GO_ROOT)/pkg/
# There is a known issue which requires the go sources to be installed
# https://golang.org/issue/2775