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# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
export CBUILD=${CBUILD:-${CHOST}}
export CTARGET=${CTARGET:-${CHOST}}
MY_PV=${PV/_/}
inherit toolchain-funcs
BOOTSTRAP_VERSION="bootstrap-1.8"
BOOTSTRAP_DIST="https://dev.gentoo.org/~williamh/dist"
BOOTSTRAP_URI="
${BOOTSTRAP_DIST}/go-linux-amd64-${BOOTSTRAP_VERSION}.tbz
${BOOTSTRAP_DIST}/go-linux-arm-${BOOTSTRAP_VERSION}.tbz
${BOOTSTRAP_DIST}/go-linux-arm64-${BOOTSTRAP_VERSION}.tbz
${BOOTSTRAP_DIST}/go-linux-ppc64-${BOOTSTRAP_VERSION}.tbz
${BOOTSTRAP_DIST}/go-linux-ppc64le-${BOOTSTRAP_VERSION}.tbz
${BOOTSTRAP_DIST}/go-linux-s390x-${BOOTSTRAP_VERSION}.tbz
${BOOTSTRAP_DIST}/go-linux-386-${BOOTSTRAP_VERSION}.tbz
${BOOTSTRAP_DIST}/go-freebsd-amd64-${BOOTSTRAP_VERSION}.tbz
${BOOTSTRAP_DIST}/go-freebsd-386-${BOOTSTRAP_VERSION}.tbz
${BOOTSTRAP_DIST}/go-darwin-amd64-${BOOTSTRAP_VERSION}.tbz
${BOOTSTRAP_DIST}/go-solaris-amd64-${BOOTSTRAP_VERSION}.tbz
"
case ${PV} in
*9999*)
EGIT_REPO_URI="https://github.com/golang/go.git"
inherit git-r3
;;
*)
SRC_URI="https://storage.googleapis.com/golang/go${MY_PV}.src.tar.gz "
S="${WORKDIR}"/go
case ${PV} in
*_beta*|*_rc*) ;;
*)
KEYWORDS="-* amd64 arm arm64 ~ppc64 ~s390 x86 ~amd64-linux ~x86-linux ~x64-macos ~x64-solaris"
# The upstream tests fail under portage but pass if the build is
# run according to their documentation [1].
# I am restricting the tests on released versions until this is
# solved.
# [1] https://golang.org/issues/18442
RESTRICT="test"
;;
esac
esac
# If gccgo or a previously installed version of dev-lang/go is not being
# used to build Go, there is no way to know the architecture or operating system
# of the build machine, so we need to download all of our bootstrap
# archives to allow this ebuild to work under crossdev.
#
# https://bugs.gentoo.org/671394
SRC_URI+="!gccgo? ( !system-bootstrap? ( ${BOOTSTRAP_URI} ) )"
DESCRIPTION="A concurrent garbage collected and typesafe programming language"
HOMEPAGE="https://golang.org"
LICENSE="BSD"
SLOT="0/${PV}"
IUSE="gccgo system-bootstrap"
BDEPEND="gccgo? ( >=sys-devel/gcc-5[go] )"
RDEPEND="!<dev-go/go-tools-0_pre20150902"
# These test data objects have writable/executable stacks.
QA_EXECSTACK="
usr/lib/go/src/debug/elf/testdata/*.obj
usr/lib/go/src/*.gox
"
# Do not complain about CFLAGS, etc, since Go doesn't use them.
QA_FLAGS_IGNORED='.*'
REQUIRES_EXCLUDE="/usr/lib/go/src/debug/elf/testdata/*"
# The tools in /usr/lib/go should not cause the multilib-strict check to fail.
QA_MULTILIB_PATHS="usr/lib/go/pkg/tool/.*/.*"
# Do not strip this package. Stripping is unsupported upstream and may
# fail.
RESTRICT+=" strip"
DOCS=(
AUTHORS
CONTRIBUTING.md
CONTRIBUTORS
PATENTS
README.md
)
go_arch()
{
# By chance most portage arch names match Go
local portage_arch=$(tc-arch $@)
case "${portage_arch}" in
x86) echo 386;;
x64-*) echo amd64;;
ppc64) [[ $(tc-endian $@) = big ]] && echo ppc64 || echo ppc64le ;;
s390) echo s390x ;;
*) echo "${portage_arch}";;
esac
}
go_arm()
{
case "${1:-${CHOST}}" in
armv5*) echo 5;;
armv6*) echo 6;;
armv7*) echo 7;;
*)
die "unknown GOARM for ${1:-${CHOST}}"
;;
esac
}
go_os()
{
case "${1:-${CHOST}}" in
*-linux*) echo linux;;
*-darwin*) echo darwin;;
*-freebsd*) echo freebsd;;
*-netbsd*) echo netbsd;;
*-openbsd*) echo openbsd;;
*-solaris*) echo solaris;;
*-cygwin*|*-interix*|*-winnt*)
echo windows
;;
*)
die "unknown GOOS for ${1:-${CHOST}}"
;;
esac
}
go_tuple()
{
echo "$(go_os $@)_$(go_arch $@)"
}
go_cross_compile()
{
[[ $(go_tuple ${CBUILD}) != $(go_tuple) ]]
}
pkg_pretend()
{
# make.bash does not understand cross-compiling a cross-compiler
if [[ $(go_tuple) != $(go_tuple ${CTARGET}) ]]; then
die "CHOST CTARGET pair unsupported: CHOST=${CHOST} CTARGET=${CTARGET}"
fi
[[ ${MERGE_TYPE} != binary ]] &&
use system-bootstrap && ! has_version "dev-lang/go" &&
die "dev-lang/go must be installed to use the system-bootstrap use flag"
}
src_unpack()
{
if [[ ${PV} = 9999 ]]; then
git-r3_src_unpack
else
unpack "go${MY_PV}.src.tar.gz"
fi
use gccgo || use system-bootstrap ||
unpack "go-$(go_os ${CBUILD})-$(go_arch ${CBUILD})-${BOOTSTRAP_VERSION}.tbz"
}
src_compile()
{
export GOROOT_BOOTSTRAP="${WORKDIR}"/go-$(go_os ${CBUILD})-$(go_arch ${CBUILD})-bootstrap
if use gccgo; then
mkdir -p "${GOROOT_BOOTSTRAP}/bin" || die
local go_binary=$(gcc-config --get-bin-path)/go-$(gcc-major-version)
[[ -x ${go_binary} ]] || go_binary=$(
find "${EPREFIX}"/usr/${CHOST}/gcc-bin/*/go-$(gcc-major-version) |
sort -V | tail -n1)
[[ -x ${go_binary} ]] ||
die "go-$(gcc-major-version): command not found"
ln -s "${go_binary}" "${GOROOT_BOOTSTRAP}/bin/go" || die
elif use system-bootstrap; then
export GOROOT_BOOTSTRAP="${EPREFIX}"/usr/lib/go
fi
export GOROOT_FINAL="${EPREFIX}"/usr/lib/go
export GOROOT="$(pwd)"
export GOBIN="${GOROOT}/bin"
# Go's build script does not use BUILD/HOST/TARGET consistently. :(
export GOHOSTARCH=$(go_arch ${CBUILD})
export GOHOSTOS=$(go_os ${CBUILD})
export CC=$(tc-getBUILD_CC)
export GOARCH=$(go_arch)
export GOOS=$(go_os)
export CC_FOR_TARGET=$(tc-getCC)
export CXX_FOR_TARGET=$(tc-getCXX)
if [[ ${ARCH} == arm ]]; then
export GOARM=$(go_arm)
fi
cd src
./make.bash || die "build failed"
}
src_test()
{
go_cross_compile && return 0
cd src
PATH="${GOBIN}:${PATH}" \
./run.bash -no-rebuild || die "tests failed"
}
src_install()
{
local bin_path f x
dodir /usr/lib/go
# There is a known issue which requires the source tree to be installed [1].
# Once this is fixed, we can consider using the doc use flag to control
# installing the doc and src directories.
# [1] https://golang.org/issue/2775
#
# deliberately use cp to retain permissions
cp -R api bin doc lib pkg misc src test "${ED}"/usr/lib/go
if go_cross_compile; then
bin_path="bin/$(go_tuple)"
else
bin_path=bin
fi
for x in ${bin_path}/*; do
f=${x##*/}
dosym ../lib/go/${bin_path}/${f} /usr/bin/${f}
done
einstalldocs
if [[ ${CHOST} == *-darwin* ]] ; then
# fix install_name for test object (binutils_test) on Darwin, it
# is never used in real circumstances
local libmac64="${EPREFIX}"/usr/lib/go/src/cmd/vendor/github.com/
libmac64+=google/pprof/internal/binutils/testdata/lib_mac_64
install_name_tool -id "${libmac64}" "${D}${libmac64}"
fi
}
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