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Gentoo's Bugzilla – Attachment 894556 Details for
Bug 760405
dev-lang/rust-bin-1.47.0-r1: claims to support x32 ABI but that's not the case
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rust ebuild supporting bootstrapping x32 from amd64
rust-1.77.1.ebuild (text/plain), 25.89 KB, created by
Steven Newbury
on 2024-05-28 12:54:25 UTC
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Description:
rust ebuild supporting bootstrapping x32 from amd64
Filename:
MIME Type:
Creator:
Steven Newbury
Created:
2024-05-28 12:54:25 UTC
Size:
25.89 KB
patch
obsolete
># Copyright 1999-2024 Gentoo Authors ># Distributed under the terms of the GNU General Public License v2 > >EAPI=8 > >PYTHON_COMPAT=( python3_{10..12} ) > >inherit bash-completion-r1 check-reqs estack flag-o-matic llvm multiprocessing \ > multilib multilib-build python-any-r1 rust-toolchain toolchain-funcs verify-sig > >if [[ ${PV} = *beta* ]]; then > betaver=${PV//*beta} > BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}" > MY_P="rustc-beta" > SLOT="beta/${PV}" > SRC="${BETA_SNAPSHOT}/rustc-beta-src.tar.xz -> rustc-${PV}-src.tar.xz" >else > ABI_VER="$(ver_cut 1-2)" > SLOT="stable/${ABI_VER}" > MY_P="rustc-${PV}" > SRC="${MY_P}-src.tar.xz" > KEYWORDS="amd64 arm arm64 ~loong ~mips ppc ppc64 ~riscv sparc x86" >fi > >RUST_STAGE0_VERSION="1.$(($(ver_cut 2) - 1)).0" > >DESCRIPTION="Systems programming language from Mozilla" >HOMEPAGE="https://www.rust-lang.org/" > >SRC_URI=" > https://static.rust-lang.org/dist/${SRC} > verify-sig? ( https://static.rust-lang.org/dist/${SRC}.asc ) > !system-bootstrap? ( $(rust_all_arch_uris rust-${RUST_STAGE0_VERSION}) ) >" > ># keep in sync with llvm ebuild of the same version as bundled one. >ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY DirectX Hexagon Lanai > LoongArch M68k Mips MSP430 NVPTX PowerPC RISCV Sparc SPIRV SystemZ VE > WebAssembly X86 XCore Xtensa ) >ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" ) >LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?} > >LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4" > >IUSE="big-endian clippy cpu_flags_x86_sse2 debug dist doc llvm-libunwind lto miri nightly parallel-compiler profiler rustfmt rust-analyzer rust-src system-bootstrap system-llvm test wasm ${ALL_LLVM_TARGETS[*]}" > ># Please keep the LLVM dependency block separate. Since LLVM is slotted, ># we need to *really* make sure we're not pulling more than one slot ># simultaneously. > ># How to use it: ># List all the working slots in LLVM_VALID_SLOTS, newest first. >LLVM_VALID_SLOTS=( 17 ) >LLVM_MAX_SLOT="${LLVM_VALID_SLOTS[0]}" > ># splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation ># (-) usedep needed because we may build with older llvm without that target >LLVM_DEPEND="|| ( " >for _s in ${LLVM_VALID_SLOTS[@]}; do > LLVM_DEPEND+=" ( " > for _x in ${ALL_LLVM_TARGETS[@]}; do > LLVM_DEPEND+=" > ${_x}? ( sys-devel/llvm:${_s}[${_x}(-)] ) > wasm? ( sys-devel/lld:${_s} )" > done > LLVM_DEPEND+=" )" >done >unset _s _x >LLVM_DEPEND+=" ) > <sys-devel/llvm-$(( LLVM_MAX_SLOT + 1 )):= >" > ># to bootstrap we need at least exactly previous version, or same. ># most of the time previous versions fail to bootstrap with newer ># for example 1.47.x, requires at least 1.46.x, 1.47.x is ok, ># but it fails to bootstrap with 1.48.x ># https://github.com/rust-lang/rust/blob/${PV}/src/stage0.json >RUST_DEP_PREV="$(ver_cut 1).$(($(ver_cut 2) - 1))*" >RUST_DEP_CURR="$(ver_cut 1).$(ver_cut 2)*" >BOOTSTRAP_DEPEND="|| > ( > =dev-lang/rust-"${RUST_DEP_PREV}" > =dev-lang/rust-bin-"${RUST_DEP_PREV}" > =dev-lang/rust-"${RUST_DEP_CURR}" > =dev-lang/rust-bin-"${RUST_DEP_CURR}" > ) >" > >BDEPEND="${PYTHON_DEPS} > app-eselect/eselect-rust > || ( > >=sys-devel/gcc-4.7 > >=sys-devel/clang-3.5 > ) > system-bootstrap? ( ${BOOTSTRAP_DEPEND} ) > !system-llvm? ( > >=dev-build/cmake-3.13.4 > app-alternatives/ninja > ) > test? ( dev-debug/gdb ) > verify-sig? ( sec-keys/openpgp-keys-rust ) >" > >DEPEND=" > >=app-arch/xz-utils-5.2 > net-misc/curl:=[http2,ssl] > sys-libs/zlib:= > dev-libs/openssl:0= > system-llvm? ( > ${LLVM_DEPEND} > llvm-libunwind? ( sys-libs/llvm-libunwind:= ) > ) > !system-llvm? ( > !llvm-libunwind? ( > elibc_musl? ( sys-libs/libunwind:= ) > ) > ) >" > >RDEPEND="${DEPEND} > app-eselect/eselect-rust > sys-apps/lsb-release >" > >REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} ) > miri? ( nightly ) > parallel-compiler? ( nightly ) > rust-analyzer? ( rust-src ) > test? ( ${ALL_LLVM_TARGETS[*]} ) > wasm? ( llvm_targets_WebAssembly ) > x86? ( cpu_flags_x86_sse2 ) >" > ># we don't use cmake.eclass, but can get a warning >CMAKE_WARN_UNUSED_CLI=no > >QA_FLAGS_IGNORED=" > usr/lib/${PN}/${PV}/bin/.* > usr/lib/${PN}/${PV}/libexec/.* > usr/lib/${PN}/${PV}/lib/lib.*.so > usr/lib/${PN}/${PV}/lib/rustlib/.*/bin/.* > usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/lib.*.so >" > >QA_SONAME=" > usr/lib/${PN}/${PV}/lib/lib.*.so.* > usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/lib.*.so >" > >QA_PRESTRIPPED=" > usr/lib/${PN}/${PV}/lib/rustlib/.*/bin/rust-llvm-dwp > usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/self-contained/crtn.o >" > ># An rmeta file is custom binary format that contains the metadata for the crate. ># rmeta files do not support linking, since they do not contain compiled object files. ># so we can safely silence the warning for this QA check. >QA_EXECSTACK="usr/lib/${PN}/${PV}/lib/rustlib/*/lib*.rlib:lib.rmeta" > ># causes double bootstrap >RESTRICT="test" > >VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/rust.asc > >PATCHES=( > "${FILESDIR}"/1.75.0-musl-dynamic-linking.patch > "${FILESDIR}"/1.74.1-cross-compile-libz.patch > #"${FILESDIR}"/1.72.0-bump-libc-deps-to-0.2.146.patch # pending refresh > "${FILESDIR}"/1.70.0-ignore-broken-and-non-applicable-tests.patch > "${FILESDIR}"/1.67.0-doc-wasm.patch > "${FILESDIR}"/1.76.0-loong-code-model.patch # remove for >=1.78.0 >) > >S="${WORKDIR}/${MY_P}-src" > >clear_vendor_checksums() { > sed -i 's/\("files":{\)[^}]*/\1/' "vendor/${1}/.cargo-checksum.json" || die >} > >toml_usex() { > usex "${1}" true false >} > >bootstrap_rust_version_check() { > # never call from pkg_pretend. eselect-rust may be not installed yet. > [[ ${MERGE_TYPE} == binary ]] && return > local rustc_wanted="$(ver_cut 1).$(($(ver_cut 2) - 1))" > local rustc_toonew="$(ver_cut 1).$(($(ver_cut 2) + 1))" > local rustc_version=( $(eselect --brief --root="${BROOT}" rust show 2>/dev/null) ) > rustc_version=${rustc_version[0]#rust-bin-} > rustc_version=${rustc_version#rust-} > > [[ -z "${rustc_version}" ]] && die "Failed to determine rust version, check 'eselect rust' output" > > if ver_test "${rustc_version}" -lt "${rustc_wanted}" ; then > eerror "Rust >=${rustc_wanted} is required" > eerror "please run 'eselect rust' and set correct rust version" > die "selected rust version is too old" > elif ver_test "${rustc_version}" -ge "${rustc_toonew}" ; then > eerror "Rust <${rustc_toonew} is required" > eerror "please run 'eselect rust' and set correct rust version" > die "selected rust version is too new" > else > einfo "Using rust ${rustc_version} to build" > fi >} > >pre_build_checks() { > local M=8192 > # multiply requirements by 1.3 if we are doing x86-multilib > if use amd64; then > M=$(( $(usex abi_x86_32 13 10) * ${M} / 10 )) > fi > M=$(( $(usex clippy 128 0) + ${M} )) > M=$(( $(usex miri 128 0) + ${M} )) > M=$(( $(usex rustfmt 256 0) + ${M} )) > # add 2G if we compile llvm and 256M per llvm_target > if ! use system-llvm; then > M=$(( 2048 + ${M} )) > local ltarget > for ltarget in ${ALL_LLVM_TARGETS[@]}; do > M=$(( $(usex ${ltarget} 256 0) + ${M} )) > done > fi > M=$(( $(usex wasm 256 0) + ${M} )) > M=$(( $(usex debug 2 1) * ${M} )) > eshopts_push -s extglob > if is-flagq '-g?(gdb)?([1-9])'; then > M=$(( 15 * ${M} / 10 )) > fi > eshopts_pop > M=$(( $(usex system-bootstrap 0 1024) + ${M} )) > M=$(( $(usex doc 256 0) + ${M} )) > CHECKREQS_DISK_BUILD=${M}M check-reqs_pkg_${EBUILD_PHASE} >} > >llvm_check_deps() { > has_version -r "sys-devel/llvm:${LLVM_SLOT}[${LLVM_TARGET_USEDEPS// /,}]" >} > ># Is LLVM being linked against libc++? >is_libcxx_linked() { > local code='#include <ciso646> >#if defined(_LIBCPP_VERSION) > HAVE_LIBCXX >#endif >' > local out=$($(tc-getCXX) ${CXXFLAGS} ${CPPFLAGS} -x c++ -E -P - <<<"${code}") || return 1 > [[ ${out} == *HAVE_LIBCXX* ]] >} > >pkg_pretend() { > pre_build_checks >} > >pkg_setup() { > pre_build_checks > python-any-r1_pkg_setup > > export LIBGIT2_NO_PKG_CONFIG=1 #749381 > if tc-is-cross-compiler; then > export PKG_CONFIG_ALLOW_CROSS=1 > export PKG_CONFIG_PATH="${ROOT}/usr/$(get_libdir)/pkgconfig" > export OPENSSL_INCLUDE_DIR="${ROOT}/usr/include" > export OPENSSL_LIB_DIR="${ROOT}/usr/$(get_libdir)" > > use system-bootstrap || die "USE=system-bootstrap is required when cross-compiling" > use system-llvm && die "USE=system-llvm not allowed when cross-compiling" > local cross_llvm_target="$(llvm_tuple_to_target "${CBUILD}")" > use "llvm_targets_${cross_llvm_target}" || \ > die "Must enable LLVM_TARGETS=${cross_llvm_target} matching CBUILD=${CBUILD} when cross-compiling" > elif [[ ${ABI} == x32 ]] && \ > [[ $(rustc --print cfg | \ > awk -F= -v key="target_pointer_width" '$1==key {print $2}') == \"64\" ]]; then > export CBUILD=x86_64-linux-linux-gnu > export CTARGET="${CHOST/pc/unknown}" > export PKG_CONFIG_ALLOW_CROSS=1 > export PKG_CONFIG_PATH="${ROOT}/usr/$(get_libdir)/pkgconfig" > export OPENSSL_INCLUDE_DIR="${ROOT}/usr/include" > export OPENSSL_LIB_DIR="${ROOT}/usr/$(get_libdir)" > use abi_x86_64 || abis+=( amd64 ) > use system-bootstrap || die "USE=system-bootstrap is required when cross-compiling" > fi > > use system-bootstrap && bootstrap_rust_version_check > > if use system-llvm; then > llvm_pkg_setup > > local llvm_config="$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config" > export LLVM_LINK_SHARED=1 > export RUSTFLAGS="${RUSTFLAGS} -Lnative=$("${llvm_config}" --libdir)" > fi >} > >esetup_unwind_hack() { > # https://bugs.gentoo.org/870280 > # this is a hack needed to bootstrap with libgcc_s linked tarball on llvm-libunwind system. > # it should trigger for internal bootstrap or system-bootstrap with rust-bin. > # the whole idea is for stage0 to bootstrap with fake libgcc_s. > # final stage will receive -L${T}/lib but not -lgcc_s args, producing clean compiler. > local fakelib="${T}/fakelib" > mkdir -p "${fakelib}" || die > # we need both symlinks, one for cargo runtime, other for linker. > ln -s "${ESYSROOT}/usr/lib/libunwind.so" "${fakelib}/libgcc_s.so.1" || die > ln -s "${ESYSROOT}/usr/lib/libunwind.so" "${fakelib}/libgcc_s.so" || die > export LD_LIBRARY_PATH="${fakelib}" > export RUSTFLAGS+=" -L${fakelib}" > # this is a literally magic variable that gets through cargo cache, without it some > # crates ignore RUSTFLAGS. > # this variable can not contain leading space. > export MAGIC_EXTRA_RUSTFLAGS+="${MAGIC_EXTRA_RUSTFLAGS:+ }-L${fakelib}" >} > >src_prepare() { > # Clear vendor checksums for crates that we patched to bump libc. > # NOTE: refresh this on each bump. > #for i in addr2line-0.20.0 bstr cranelift-jit crossbeam-channel elasticlunr-rs handlebars icu_locid libffi \ > # terminal_size tracing-tree; do > # clear_vendor_checksums "${i}" > #done > > if ! use system-bootstrap; then > has_version sys-devel/gcc || esetup_unwind_hack > local rust_stage0_root="${WORKDIR}"/rust-stage0 > if [[ ${ABI} == x32 ]]; then > local rust_stage0="rust-${RUST_STAGE0_VERSION}-x86_64-unknown-linux-gnu" > else > local rust_stage0="rust-${RUST_STAGE0_VERSION}-$(rust_abi "${CBUILD}")" > fi > > "${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig \ > --without=rust-docs-json-preview,rust-docs --destdir="${rust_stage0_root}" --prefix=/ || die > fi > > default >} > >src_configure() { > filter-lto # https://bugs.gentoo.org/862109 https://bugs.gentoo.org/866231 > > local rust_target="" rust_targets="" arch_cflags use_libcxx="false" > > # Collect rust target names to compile standard libs for all ABIs. > for v in $(multilib_get_enabled_abi_pairs); do > rust_targets+=",\"$(rust_abi $(get_abi_CHOST ${v##*.}))\"" > done > if use wasm; then > rust_targets+=",\"wasm32-unknown-unknown\"" > if use system-llvm; then > # un-hardcode rust-lld linker for this target > # https://bugs.gentoo.org/715348 > sed -i '/linker:/ s/rust-lld/wasm-ld/' compiler/rustc_target/src/spec/base/wasm.rs || die > fi > fi > rust_targets="${rust_targets#,}" > > # cargo and rustdoc are mandatory and should always be included > local tools='"cargo","rustdoc"' > use clippy && tools+=',"clippy"' > use miri && tools+=',"miri"' > use profiler && tools+=',"rust-demangler"' > use rustfmt && tools+=',"rustfmt"' > use rust-analyzer && tools+=',"rust-analyzer","rust-analyzer-proc-macro-srv"' > use rust-src && tools+=',"src"' > > local rust_stage0_root > if use system-bootstrap; then > local printsysroot > printsysroot="$(rustc --print sysroot || die "Can't determine rust's sysroot")" > rust_stage0_root="${printsysroot}" > else > rust_stage0_root="${WORKDIR}"/rust-stage0 > fi > # in case of prefix it will be already prefixed, as --print sysroot returns full path > [[ -d ${rust_stage0_root} ]] || die "${rust_stage0_root} is not a directory" > > # If this is x32 but using 64 bit rust-bin then "Canadian > # cross-compile". > # This requires amd64 abi to bootstrap the build toolchain even if > # not enabled > rust_target="$(rust_abi ${CTARGET})" > rust_build="$(rust_abi ${CBUILD})" > rust_host="$(rust_abi ${CHOST})" > > local cm_btype="$(usex debug DEBUG RELEASE)" > cat <<- _EOF_ > "${S}"/config.toml > changelog-seen = 2 > [llvm] > download-ci-llvm = false > optimize = $(toml_usex !debug) > release-debuginfo = $(toml_usex debug) > assertions = $(toml_usex debug) > ninja = true > targets = "${LLVM_TARGETS// /;}" > experimental-targets = "" > link-shared = $(toml_usex system-llvm) > $(if [[ ${use_libcxx} == true ]]; then > echo "use-libcxx = true" > echo "static-libstdcpp = false" > fi) > $(case "${rust_target}" in > i586-*-linux-*) > # https://github.com/rust-lang/rust/issues/93059 > echo 'cflags = "-fcf-protection=none"' > echo 'cxxflags = "-fcf-protection=none"' > echo 'ldflags = "-fcf-protection=none"' > ;; > *) > ;; > esac) > enable-warnings = false > [llvm.build-config] > CMAKE_VERBOSE_MAKEFILE = "ON" > $(if ! tc-is-cross-compiler; then > # When cross-compiling, LLVM is compiled twice, once for host and > # once for target. Unfortunately, this build configuration applies > # to both, which means any flags applicable to one target but not > # the other will break. Conditionally disable respecting user > # flags when cross-compiling. > echo "CMAKE_C_FLAGS_${cm_btype} = \"${CFLAGS}\"" > echo "CMAKE_CXX_FLAGS_${cm_btype} = \"${CXXFLAGS}\"" > echo "CMAKE_EXE_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\"" > echo "CMAKE_MODULE_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\"" > echo "CMAKE_SHARED_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\"" > echo "CMAKE_STATIC_LINKER_FLAGS_${cm_btype} = \"${ARFLAGS}\"" > fi) > [build] > build-stage = 2 > test-stage = 2 > build = "${rust_build}" > host = ["${rust_host}"] > target = [${rust_targets}] > cargo = "${rust_stage0_root}/bin/cargo" > rustc = "${rust_stage0_root}/bin/rustc" > rustfmt = "${rust_stage0_root}/bin/rustfmt" > docs = $(toml_usex doc) > compiler-docs = false > submodules = false > python = "${EPYTHON}" > locked-deps = true > vendor = true > extended = true > tools = [${tools}] > verbose = 2 > sanitizers = false > profiler = $(toml_usex profiler) > cargo-native-static = false > [install] > prefix = "${EPREFIX}/usr/lib/${PN}/${PV}" > sysconfdir = "etc" > docdir = "share/doc/rust" > bindir = "bin" > libdir = "lib" > mandir = "share/man" > [rust] > # https://github.com/rust-lang/rust/issues/54872 > codegen-units-std = 1 > optimize = true > debug = $(toml_usex debug) > debug-assertions = $(toml_usex debug) > debug-assertions-std = $(toml_usex debug) > debuginfo-level = $(usex debug 2 0) > debuginfo-level-rustc = $(usex debug 2 0) > debuginfo-level-std = $(usex debug 2 0) > debuginfo-level-tools = $(usex debug 2 0) > debuginfo-level-tests = 0 > backtrace = true > incremental = false > $(if ! tc-is-cross-compiler; then > echo "default-linker = \"$(tc-getCC)\"" > fi) > parallel-compiler = $(toml_usex parallel-compiler) > channel = "$(usex nightly nightly stable)" > description = "gentoo" > rpath = false > verbose-tests = true > optimize-tests = $(toml_usex !debug) > codegen-tests = true > dist-src = false > remap-debuginfo = true > lld = $(usex system-llvm false $(toml_usex wasm)) > # only deny warnings if doc+wasm are NOT requested, documenting stage0 wasm std fails without it > # https://github.com/rust-lang/rust/issues/74976 > # https://github.com/rust-lang/rust/issues/76526 > deny-warnings = $(usex wasm $(usex doc false true) true) > backtrace-on-ice = true > jemalloc = false > # See https://github.com/rust-lang/rust/issues/121124 > lto = "$(usex lto thin off)" > [dist] > src-tarball = false > compression-formats = ["xz"] > compression-profile = "balanced" > _EOF_ > > TARGET_PREFIX=${CTARGET//-/_} > TARGET_PREFIX=${TARGET_PREFIX^^} > export ${TARGET_PREFIX}_OPENSSL_LIB_DIR=/usr/$(get_libdir) > export ${TARGET_PREFIX}_OPENSSL_INCLUDE_DIR=/usr/include > > cat <<- _EOF_ >> "${S}"/config.env > PKG_CONFIG_ALLOW_CROSS=1 > CFG_COMPILER_HOST_TRIPLE=$(rust_abi $(get_abi_CHOST ${DEFAULT_ABI})) > _EOF_ > > for v in $(multilib_get_enabled_abi_pairs); do > rust_target=$(rust_abi $(get_abi_CHOST ${v##*.})) > arch_cflags="$(get_abi_CFLAGS ${v##*.})" > > export CFLAGS_${rust_target//-/_}="${arch_cflags}" > > cat <<- _EOF_ >> "${S}"/config.toml > [target.${rust_target}] > ar = "$(tc-getAR)" > cc = "$(tc-getCC)" > cxx = "$(tc-getCXX)" > linker = "$(tc-getCC)" > ranlib = "$(tc-getRANLIB)" > llvm-libunwind = "$(usex llvm-libunwind $(usex system-llvm system in-tree) no)" > _EOF_ > if use system-llvm; then > cat <<- _EOF_ >> "${S}"/config.toml > llvm-config = "$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config" > _EOF_ > fi > # by default librustc_target/spec/linux_musl_base.rs sets base.crt_static_default = true; > # but we patch it and set to false here as well > if use elibc_musl; then > cat <<- _EOF_ >> "${S}"/config.toml > crt-static = false > _EOF_ > fi > done > if use wasm; then > cat <<- _EOF_ >> "${S}"/config.toml > [target.wasm32-unknown-unknown] > linker = "$(usex system-llvm lld rust-lld)" > # wasm target does not have profiler_builtins https://bugs.gentoo.org/848483 > profiler = false > _EOF_ > fi > > if [[ -n ${I_KNOW_WHAT_I_AM_DOING_CROSS} ]]; then # whitespace intentionally shifted below > # experimental cross support > # discussion: https://bugs.gentoo.org/679878 > # TODO: c*flags, clang, system-llvm, cargo.eclass target support > # it would be much better if we could split out stdlib > # complilation to separate ebuild and abuse CATEGORY to > # just install to /usr/lib/rustlib/<target> > > # extra targets defined as a bash array > # spec format: <LLVM target>:<rust-target>:<CTARGET> > # best place would be /etc/portage/env/dev-lang/rust > # Example: > # RUST_CROSS_TARGETS=( > # "AArch64:aarch64-unknown-linux-gnu:aarch64-unknown-linux-gnu" > # ) > # no extra hand holding is done, no target transformations, all > # values are passed as-is with just basic checks, so it's up to user to supply correct values > # valid rust targets can be obtained with > # rustc --print target-list > # matching cross toolchain has to be installed > # matching LLVM_TARGET has to be enabled for both rust and llvm (if using system one) > # only gcc toolchains installed with crossdev are checked for now. > > # BUG: we can't pass host flags to cross compiler, so just filter for now > # BUG: this should be more fine-grained. > filter-flags '-mcpu=*' '-march=*' '-mtune=*' > > local cross_target_spec > for cross_target_spec in "${RUST_CROSS_TARGETS[@]}";do > # extracts first element form <LLVM target>:<rust-target>:<CTARGET> > local cross_llvm_target="${cross_target_spec%%:*}" > # extracts toolchain triples, <rust-target>:<CTARGET> > local cross_triples="${cross_target_spec#*:}" > # extracts first element after before : separator > local cross_rust_target="${cross_triples%%:*}" > # extracts last element after : separator > local cross_toolchain="${cross_triples##*:}" > use llvm_targets_${cross_llvm_target} || die "need llvm_targets_${cross_llvm_target} target enabled" > command -v ${cross_toolchain}-gcc > /dev/null 2>&1 || die "need ${cross_toolchain} cross toolchain" > > cat <<- _EOF_ >> "${S}"/config.toml > [target.${cross_rust_target}] > ar = "${cross_toolchain}-ar" > cc = "${cross_toolchain}-gcc" > cxx = "${cross_toolchain}-g++" > linker = "${cross_toolchain}-gcc" > ranlib = "${cross_toolchain}-ranlib" > _EOF_ > if use system-llvm; then > cat <<- _EOF_ >> "${S}"/config.toml > llvm-config = "$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config" > _EOF_ > fi > if [[ "${cross_toolchain}" == *-musl* ]]; then > cat <<- _EOF_ >> "${S}"/config.toml > musl-root = "$(${cross_toolchain}-gcc -print-sysroot)/usr" > _EOF_ > fi > > # append cross target to "normal" target list > # example 'target = ["powerpc64le-unknown-linux-gnu"]' > # becomes 'target = ["powerpc64le-unknown-linux-gnu","aarch64-unknown-linux-gnu"]' > > rust_targets="${rust_targets},\"${cross_rust_target}\"" > sed -i "/^target = \[/ s#\[.*\]#\[${rust_targets}\]#" config.toml || die > > ewarn > ewarn "Enabled ${cross_rust_target} rust target" > ewarn "Using ${cross_toolchain} cross toolchain" > ewarn > if ! has_version -b 'sys-devel/binutils[multitarget]' ; then > ewarn "'sys-devel/binutils[multitarget]' is not installed" > ewarn "'strip' will be unable to strip cross libraries" > ewarn "cross targets will be installed with full debug information" > ewarn "enable 'multitarget' USE flag for binutils to be able to strip object files" > ewarn > ewarn "Alternatively llvm-strip can be used, it supports stripping any target" > ewarn "define STRIP=\"llvm-strip\" to use it (experimental)" > ewarn > fi > done > fi # I_KNOW_WHAT_I_AM_DOING_CROSS > > einfo "Rust configured with the following flags:" > echo > echo RUSTFLAGS="\"${RUSTFLAGS}\"" > echo RUSTFLAGS_BOOTSTRAP="\"${RUSTFLAGS_BOOTSTRAP}\"" > echo RUSTFLAGS_NOT_BOOTSTRAP="\"${RUSTFLAGS_NOT_BOOTSTRAP}\"" > echo MAGIC_EXTRA_RUSTFLAGS="\"${MAGIC_EXTRA_RUSTFLAGS}\"" > env | grep "CARGO_TARGET_.*_RUSTFLAGS=" > env | grep "CFLAGS_.*" > echo > einfo "config.toml contents:" > cat "${S}"/config.toml || die > echo >} > >src_compile() { > RUST_BACKTRACE=1 "${EPYTHON}" ./x.py build -vvv --config="${S}"/config.toml -j$(makeopts_jobs) || die >} > >src_test() { > # https://rustc-dev-guide.rust-lang.org/tests/intro.html > > # those are basic and codegen tests. > local tests=( > codegen > codegen-units > compile-fail > incremental > mir-opt > pretty > run-make > ) > > # fails if llvm is not built with ALL targets. > # and known to fail with system llvm sometimes. > use system-llvm || tests+=( assembly ) > > # fragile/expensive/less important tests > # or tests that require extra builds > # TODO: instead of skipping, just make some nonfatal. > if [[ ${ERUST_RUN_EXTRA_TESTS:-no} != no ]]; then > tests+=( > rustdoc > rustdoc-js > rustdoc-js-std > rustdoc-ui > run-make-fulldeps > ui > ui-fulldeps > ) > fi > > local i failed=() > einfo "rust_src_test: enabled tests ${tests[@]/#/src/test/}" > for i in "${tests[@]}"; do > local t="src/test/${i}" > einfo "rust_src_test: running ${t}" > if ! ( > IFS=$'\n' > env $(cat "${S}"/config.env) RUST_BACKTRACE=1 \ > "${EPYTHON}" ./x.py test -vv --config="${S}"/config.toml \ > -j$(makeopts_jobs) --no-doc --no-fail-fast "${t}" > ) > then > failed+=( "${t}" ) > eerror "rust_src_test: ${t} failed" > fi > done > > if [[ ${#failed[@]} -ne 0 ]]; then > eerror "rust_src_test: failure summary: ${failed[@]}" > die "aborting due to test failures" > fi >} > >src_install() { > ( > IFS=$'\n' > env $(cat "${S}"/config.env) DESTDIR="${D}" \ > "${EPYTHON}" ./x.py install -vv --config="${S}"/config.toml -j$(makeopts_jobs) || die > ) > > # bug #689562, #689160 > rm -v "${ED}/usr/lib/${PN}/${PV}/etc/bash_completion.d/cargo" || die > rmdir -v "${ED}/usr/lib/${PN}/${PV}"/etc{/bash_completion.d,} || die > newbashcomp src/tools/cargo/src/etc/cargo.bashcomp.sh cargo > > local symlinks=( > cargo > rustc > rustdoc > rust-gdb > rust-gdbgui > rust-lldb > ) > > use clippy && symlinks+=( clippy-driver cargo-clippy ) > use miri && symlinks+=( miri cargo-miri ) > use profiler && symlinks+=( rust-demangler ) > use rustfmt && symlinks+=( rustfmt cargo-fmt ) > use rust-analyzer && symlinks+=( rust-analyzer ) > > einfo "installing eselect-rust symlinks and paths: ${symlinks[@]}" > local i > for i in "${symlinks[@]}"; do > # we need realpath on /usr/bin/* symlink return version-appended binary path. > # so /usr/bin/rustc should point to /usr/lib/rust/<ver>/bin/rustc-<ver> > # need to fix eselect-rust to remove this hack. > local ver_i="${i}-${PV}" > if [[ -f "${ED}/usr/lib/${PN}/${PV}/bin/${i}" ]]; then > einfo "Installing ${i} symlink" > ln -v "${ED}/usr/lib/${PN}/${PV}/bin/${i}" "${ED}/usr/lib/${PN}/${PV}/bin/${ver_i}" || die > else > ewarn "${i} symlink requested, but source file not found" > ewarn "please report this" > fi > dosym "../lib/${PN}/${PV}/bin/${ver_i}" "/usr/bin/${ver_i}" > done > > # symlinks to switch components to active rust in eselect > dosym "${PV}/lib" "/usr/lib/${PN}/lib-${PV}" > dosym "${PV}/libexec" "/usr/lib/${PN}/libexec-${PV}" > dosym "${PV}/share/man" "/usr/lib/${PN}/man-${PV}" > dosym "rust/${PV}/lib/rustlib" "/usr/lib/rustlib-${PV}" > dosym "../../lib/${PN}/${PV}/share/doc/rust" "/usr/share/doc/${P}" > > newenvd - "50${P}" <<-_EOF_ > LDPATH="${EPREFIX}/usr/lib/rust/lib" > MANPATH="${EPREFIX}/usr/lib/rust/man" > _EOF_ > > rm -rf "${ED}/usr/lib/${PN}/${PV}"/*.old || die > rm -rf "${ED}/usr/lib/${PN}/${PV}/bin"/*.old || die > rm -rf "${ED}/usr/lib/${PN}/${PV}/doc"/*.old || die > > # note: eselect-rust adds EROOT to all paths below > cat <<-_EOF_ > "${T}/provider-${P}" > /usr/bin/cargo > /usr/bin/rustdoc > /usr/bin/rust-gdb > /usr/bin/rust-gdbgui > /usr/bin/rust-lldb > /usr/lib/rustlib > /usr/lib/rust/lib > /usr/lib/rust/libexec > /usr/lib/rust/man > /usr/share/doc/rust > _EOF_ > > if use clippy; then > echo /usr/bin/clippy-driver >> "${T}/provider-${P}" > echo /usr/bin/cargo-clippy >> "${T}/provider-${P}" > fi > if use miri; then > echo /usr/bin/miri >> "${T}/provider-${P}" > echo /usr/bin/cargo-miri >> "${T}/provider-${P}" > fi > if use profiler; then > echo /usr/bin/rust-demangler >> "${T}/provider-${P}" > fi > if use rustfmt; then > echo /usr/bin/rustfmt >> "${T}/provider-${P}" > echo /usr/bin/cargo-fmt >> "${T}/provider-${P}" > fi > if use rust-analyzer; then > echo /usr/bin/rust-analyzer >> "${T}/provider-${P}" > fi > > insinto /etc/env.d/rust > doins "${T}/provider-${P}" > > if use dist; then > insinto "/usr/lib/${PN}/${PV}/dist" > doins -r "${S}/build/dist/." > fi >} > >pkg_postinst() { > eselect rust update > > if has_version dev-debug/gdb || has_version dev-debug/lldb; then > elog "Rust installs a helper script for calling GDB and LLDB," > elog "for your convenience it is installed under /usr/bin/rust-{gdb,lldb}-${PV}." > fi > > if has_version app-editors/emacs; then > elog "install app-emacs/rust-mode to get emacs support for rust." > fi > > if has_version app-editors/gvim || has_version app-editors/vim; then > elog "install app-vim/rust-vim to get vim support for rust." > fi >} > >pkg_postrm() { > eselect rust cleanup >}
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