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coreos-cargo.eclass: Drop the CoreOS board cross-compilation eclass
With amd64 as the only supported board, the SDK host compiler can be used with EAPI=7 and the upstream cargo.eclass to build our Rust projects using 100% upstream Gentoo configuration. This also drops the std library bootstrapping package along with the eclass, since that was its only use.
This commit is contained in:
David Michael
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dd3d4270c9
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416e2c6530
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DIST rustc-1.29.1-src.tar.gz 106095241 BLAKE2B c793824bcf9bd60f5e60cc97c297807d9fb998c1fe7478056a68bcc18f8c9166d71c69d6489d1898448b0b470c152206fbe2107e49dbc9a406d4e0a3c92fc97f SHA512 3151c398a79169af7dd0735d5115112cb64858120a637eda018cb4544dd9988f7540120cc0122d2af7348968285650d8605837e9f40337ec95e549d5e8763f04
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
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<pkgmetadata>
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</pkgmetadata>
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# Copyright 2017-2018 CoreOS, Inc.
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# Distributed under the terms of the GNU General Public License v2
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EAPI=6
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inherit coreos-cargo
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DESCRIPTION="Standard libraries for Rust"
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HOMEPAGE="http://www.rust-lang.org/"
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LICENSE="|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA"
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SRC_URI="https://static.rust-lang.org/dist/rustc-${PV}-src.tar.gz"
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S="${WORKDIR}/rustc-${PV}-src"
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RDEPEND="!dev-lang/rust"
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SLOT="0/${PVR}"
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KEYWORDS="amd64 arm64"
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src_configure() {
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# get rid of the top level Cargo.toml or else cargo tries to use this one
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# too, and we don't want that since we aren't building the whole compiler
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rm src/Cargo.toml
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# Add the vendored crates to the local registry.
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ln -fst "${ECARGO_VENDOR}" "${S}"/src/vendor/*
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}
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src_compile() {
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# put the target dir somewhere predictable
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local -x CARGO_TARGET_DIR="${T}/target"
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# look up required crates in our fake registry
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local -x CARGO_HOME="${ECARGO_HOME}"
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# set this required bootstrapping variable
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local -x CFG_COMPILER_HOST_TRIPLE="${RUST_TARGET}"
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# fake out the compiler so that it lets us use #!feature attributes
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# really building the std libs is bootstrapping anyway, so I don't feel bad
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local -x RUSTC_BOOTSTRAP=1
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# various required flags for compiling thes std libs
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local -x RUSTFLAGS="-C prefer-dynamic -L ${CARGO_TARGET_DIR}/${RUST_TARGET}/release/deps -Z force-unstable-if-unmarked"
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# set the metadata directory for the boostrap build
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local -x RUSTC_ERROR_METADATA_DST="${T}/target/release/build/tmp/extended-error-metadata"
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# build the std lib, which also builds all the other important libraries
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# (core, collections, etc). build it for the target we want for this build.
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# also make sure that the jemalloc libraries are included.
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local -a features=( $(usex debug debug-jemalloc jemalloc) panic-unwind )
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cargo build -p std -v --lib $(usex debug '' --release) \
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--features "${features[*]}" \
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--manifest-path src/libstd/Cargo.toml \
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--target "${RUST_TARGET}" || die
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cargo build -p term -v --lib $(usex debug '' --release) \
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--manifest-path src/libterm/Cargo.toml \
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--target "${RUST_TARGET}" || die
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# Correct the directory name prior to installing it.
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mv "${CARGO_TARGET_DIR}/${RUST_TARGET}/release/deps" "${CARGO_TARGET_DIR}/${RUST_TARGET}/release/lib"
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}
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src_install() {
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insinto "/usr/$(get_libdir)/rustlib/${RUST_TARGET}"
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doins -r "${T}/target/${RUST_TARGET}/release/lib"
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}
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# Copyright 2017-2018 CoreOS, Inc.
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# Distributed under the terms of the GNU General Public License v2
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# @ECLASS: coreos-cargo.eclass
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# @MAINTAINER:
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# team-os@coreos.com
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# @AUTHOR:
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# David Michael <david.michael@coreos.com>
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# @BLURB: cargo cross-compilation support for CoreOS/ChromeOS targets
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if [[ -z ${_COREOS_CARGO_ECLASS} ]]; then
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_COREOS_CARGO_ECLASS=1
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# XXX: Don't require host dependencies to also be in the sysroot.
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CATEGORY=dev-util PN=cargo inherit cargo
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inherit toolchain-funcs
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EXPORT_FUNCTIONS src_unpack
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[[ ${CATEGORY}/${PN} != dev-libs/rustlib ]] && DEPEND="|| (
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dev-libs/rustlib:=
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dev-util/cargo
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)"
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# @FUNCTION: coreos-cargo_src_unpack
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# @DESCRIPTION:
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# This amends the src_unpack from cargo.eclass to add support for Rust
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# cross-compiling to the ChromeOS targets. It maps the host triplet to
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# one built into rustc and uses the board root as its sysroot.
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coreos-cargo_src_unpack() {
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debug-print-function ${FUNCNAME} "$@"
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cargo_src_unpack "$@"
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[[ ${CBUILD:-${CHOST}} != ${CHOST} ]] || return 0
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# Map the SDK host triplet to one that is built into rustc.
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function rust_builtin_target() case "$1" in
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aarch64-*-linux-gnu) echo aarch64-unknown-linux-gnu ;;
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x86_64-*-linux-gnu) echo x86_64-unknown-linux-gnu ;;
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*) die "Unknown host triplet: $1" ;;
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esac
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# Set the gcc-rs flags for cross-compiling.
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export TARGET_CFLAGS="${CFLAGS}"
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export TARGET_CXXFLAGS="${CXXFLAGS}"
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# Wrap ar for gcc-rs to work around rust-lang/cargo#4456.
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export TARGET_AR="${T}/rustproof-ar"
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cat <<- EOF > "${TARGET_AR}" && chmod 0755 "${TARGET_AR}"
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#!/bin/sh
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unset LD_LIBRARY_PATH
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exec $(tc-getAR) "\$@"
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EOF
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# Wrap gcc for gcc-rs to work around rust-lang/cargo#4456.
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export TARGET_CC="${T}/rustproof-cc"
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cat <<- EOF > "${TARGET_CC}" && chmod 0755 "${TARGET_CC}"
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#!/bin/sh
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unset LD_LIBRARY_PATH
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exec $(tc-getCC) "\$@"
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EOF
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# Wrap g++ for gcc-rs to work around rust-lang/cargo#4456.
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export TARGET_CXX="${T}/rustproof-cxx"
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cat <<- EOF > "${TARGET_CXX}" && chmod 0755 "${TARGET_CXX}"
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#!/bin/sh
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unset LD_LIBRARY_PATH
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exec $(tc-getCXX) "\$@"
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EOF
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# Create a compiler wrapper that uses a sysroot for cross-compiling.
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export RUSTC_WRAPPER="${T}/wrustc"
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cat <<- 'EOF' > "${RUSTC_WRAPPER}" && chmod 0755 "${RUSTC_WRAPPER}"
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#!/bin/bash -e
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rustc=${1:?Missing rustc command}
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shift
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xflags=()
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[ "x$*" = "x${*#--target}" ] || xflags=( --sysroot="${ROOT:-/}usr" )
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exec "${rustc}" "${xflags[@]}" "$@"
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EOF
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# Compile for the built-in target, using the SDK cross-tools.
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export RUST_TARGET=$(rust_builtin_target "${CHOST}")
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cat <<- EOF >> "${ECARGO_HOME}/config"
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[build]
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target = "${RUST_TARGET}"
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[target.${RUST_TARGET}]
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ar = "${TARGET_AR}"
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linker = "${TARGET_CC}"
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EOF
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}
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fi
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DEFINED_PHASES=compile configure install unpack
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DESCRIPTION=Standard libraries for Rust
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EAPI=6
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HOMEPAGE=http://www.rust-lang.org/
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IUSE=debug
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KEYWORDS=amd64 arm64
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LICENSE=|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA
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RDEPEND=!dev-lang/rust
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SLOT=0/1.29.1
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SRC_URI=https://static.rust-lang.org/dist/rustc-1.29.1-src.tar.gz
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_eclasses_=cargo c11c4632a7a9d8e0b76e9f4412e76163 coreos-cargo ecc71b7f40f79def52bcee3f1dca6559 multilib b2f01ad412baf81650c23fcf0975fa33 multiprocessing cac3169468f893670dac3e7cb940e045 toolchain-funcs f164325a2cdb5b3ea39311d483988861
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_md5_=d5ff44d34648d4f7fe52a93db0d8195b
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