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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: rust-toolchain.eclass
# @MAINTAINER:
# Rust Project <rust@gentoo.org>
# @SUPPORTED_EAPIS: 6 7
# @BLURB: helps map gentoo arches to rust ABIs
# @DESCRIPTION:
# This eclass contains a src_unpack default phase function, and
# helper functions, to aid in proper rust-ABI handling for various
# gentoo arches.
case ${EAPI} in
6) : ;;
7) : ;;
*) die "EAPI=${EAPI:-0} is not supported" ;;
esac
inherit multilib-build
# @ECLASS-VARIABLE: RUST_TOOLCHAIN_BASEURL
# @DESCRIPTION:
# This variable specifies the base URL used by the
# rust_arch_uri and rust_all_arch_uris functions when
# generating the URI output list.
: ${RUST_TOOLCHAIN_BASEURL:=https://static.rust-lang.org/dist/}
# @FUNCTION: rust_abi
# @USAGE: [CHOST-value]
# @DESCRIPTION:
# Outputs the Rust ABI name from a CHOST value, uses CHOST in the
# environment if none is specified.
rust_abi() {
local CTARGET=${1:-${CHOST}}
case ${CTARGET%%*-} in
aarch64*) echo aarch64-unknown-linux-gnu;;
mips64*) echo mips64-unknown-linux-gnuabi64;;
powerpc64le*) echo powerpc64le-unknown-linux-gnu;;
powerpc64*) echo powerpc64-unknown-linux-gnu;;
x86_64*gnu) echo x86_64-unknown-linux-gnu;;
x86_64*musl) echo x86_64-unknown-linux-musl;;
armv6j*s*) echo arm-unknown-linux-gnueabi;;
armv6j*h*) echo arm-unknown-linux-gnueabihf;;
armv7a*h*) echo armv7-unknown-linux-gnueabihf;;
i?86*) echo i686-unknown-linux-gnu;;
mipsel*) echo mipsel-unknown-linux-gnu;;
mips*) echo mips-unknown-linux-gnu;;
powerpc*) echo powerpc-unknown-linux-gnu;;
s390x*) echo s390x-unknown-linux-gnu;;
*) echo ${CTARGET};;
esac
}
# @FUNCTION: rust_all_abis
# @DESCRIPTION:
# Outputs a list of all the enabled Rust ABIs
rust_all_abis() {
if use multilib; then
local abi
local ALL_ABIS=()
for abi in $(multilib_get_enabled_abis); do
ALL_ABIS+=( $(rust_abi $(get_abi_CHOST ${abi})) )
done
local abi_list
IFS=, eval 'abi_list=${ALL_ABIS[*]}'
echo ${abi_list}
else
rust_abi
fi
}
# @FUNCTION: rust_arch_uri
# @USAGE: <rust-ABI> <base-uri> [alt-distfile-basename]
# @DESCRIPTION:
# Output the URI for use in SRC_URI, combining $RUST_TOOLCHAIN_BASEURL
# and the URI suffix provided in ARG2 with the rust ABI in ARG1, and
# optionally renaming to the distfile basename specified in ARG3.
#
# @EXAMPLE:
# SRC_URI="amd64? (
# $(rust_arch_uri x86_64-unknown-linux-gnu rustc-${STAGE0_VERSION})
# )"
#
rust_arch_uri() {
if [ -n "$3" ]; then
echo "${RUST_TOOLCHAIN_BASEURL}${2}-${1}.tar.xz -> ${3}-${1}.tar.xz"
else
echo "${RUST_TOOLCHAIN_BASEURL}${2}-${1}.tar.xz"
fi
}
# @FUNCTION: rust_all_arch_uris
# @USAGE: <base-uri> [alt-distfile-basename]
# @DESCRIPTION:
# Outputs the URIs for SRC_URI to help fetch dependencies, using a base URI
# provided as an argument. Optionally allows for distfile renaming via a specified
# basename.
#
# @EXAMPLE:
# SRC_URI="$(rust_all_arch_uris rustc-${STAGE0_VERSION})"
#
rust_all_arch_uris()
{
local uris=""
uris+="abi_x86_64? ( elibc_glibc? ( $(rust_arch_uri x86_64-unknown-linux-gnu "$@") )
elibc_musl? ( $(rust_arch_uri x86_64-unknown-linux-musl "$@") ) ) "
uris+="arm? ( $(rust_arch_uri arm-unknown-linux-gnueabi "$@")
$(rust_arch_uri arm-unknown-linux-gnueabihf "$@")
$(rust_arch_uri armv7-unknown-linux-gnueabihf "$@") ) "
uris+="arm64? ( $(rust_arch_uri aarch64-unknown-linux-gnu "$@") ) "
uris+="mips? ( $(rust_arch_uri mips-unknown-linux-gnu "$@")
$(rust_arch_uri mipsel-unknown-linux-gnu "$@")
$(rust_arch_uri mips64-unknown-linux-gnuabi64 "$@") ) "
uris+="ppc? ( $(rust_arch_uri powerpc-unknown-linux-gnu "$@") ) "
uris+="ppc64? ( $(rust_arch_uri powerpc64-unknown-linux-gnu "$@")
$(rust_arch_uri powerpc64le-unknown-linux-gnu "$@") ) "
uris+="s390? ( $(rust_arch_uri s390x-unknown-linux-gnu "$@") ) "
uris+="abi_x86_32? ( $(rust_arch_uri i686-unknown-linux-gnu "$@") ) "
echo "${uris}"
}