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gentoo-overlay/eclass/rust-toolchain.eclass

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4.9 KiB

# Copyright 1999-2024 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: 8
# @BLURB: helps map gentoo arches to rust ABIs
# @DESCRIPTION:
# This eclass contains helper functions, to aid in proper rust-ABI handling for
# various gentoo arches.
case ${EAPI} in
8) ;;
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac
# @ECLASS_VARIABLE: RUST_TOOLCHAIN_BASEURL
# @DESCRIPTION:
# This variable specifies the base URL used by the
# rust_arch_uri and rust_all_arch_uris functions when
# generating the URI output list.
: "${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*gnu) echo aarch64-unknown-linux-gnu;;
aarch64*musl) echo aarch64-unknown-linux-musl;;
armv6j*h*) echo arm-unknown-linux-gnueabihf;;
armv6j*s*) echo arm-unknown-linux-gnueabi;;
armv7a*h*) echo armv7-unknown-linux-gnueabihf;;
i?86*) echo i686-unknown-linux-gnu;;
loongarch64*) echo loongarch64-unknown-linux-gnu;;
mips64el*) echo mips64el-unknown-linux-gnuabi64;;
mips64*) echo mips64-unknown-linux-gnuabi64;;
mipsel*) echo mipsel-unknown-linux-gnu;;
mips*) echo mips-unknown-linux-gnu;;
powerpc64le*gnu) echo powerpc64le-unknown-linux-gnu;;
powerpc64le*musl) echo powerpc64le-unknown-linux-musl;;
powerpc64*gnu) echo powerpc64-unknown-linux-gnu;;
powerpc64*musl) echo powerpc64-unknown-linux-musl;;
powerpc*gnu) echo powerpc-unknown-linux-gnu;;
powerpc*musl) echo powerpc-unknown-linux-musl;;
riscv64*gnu) echo riscv64gc-unknown-linux-gnu;;
riscv64*musl) echo riscv64gc-unknown-linux-musl;;
s390x*) echo s390x-unknown-linux-gnu;;
x86_64*gnu) echo x86_64-unknown-linux-gnu;;
x86_64*musl) echo x86_64-unknown-linux-musl;;
*) echo ${CTARGET};;
esac
}
# @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"
echo "verify-sig? ( ${RUST_TOOLCHAIN_BASEURL}${2}-${1}.tar.xz.asc )"
fi
}
# @FUNCTION: rust_all_arch_uris
# @USAGE: <base-uri> [alt-distfile-basename]
# @DESCRIPTION:
# Outputs the URIs for SRC_URI to help fetch dependencies, using a base URI
# provided as an argument. Optionally allows for distfile renaming via a specified
# basename.
#
# @EXAMPLE:
# SRC_URI="$(rust_all_arch_uris rustc-${STAGE0_VERSION})"
#
rust_all_arch_uris()
{
echo "
abi_x86_32? ( $(rust_arch_uri i686-unknown-linux-gnu "$@") )
abi_x86_64? (
elibc_glibc? ( $(rust_arch_uri x86_64-unknown-linux-gnu "$@") )
elibc_musl? ( $(rust_arch_uri x86_64-unknown-linux-musl "$@") )
)
arm? (
$(rust_arch_uri arm-unknown-linux-gnueabi "$@")
$(rust_arch_uri arm-unknown-linux-gnueabihf "$@")
$(rust_arch_uri armv7-unknown-linux-gnueabihf "$@")
)
arm64? (
elibc_glibc? ( $(rust_arch_uri aarch64-unknown-linux-gnu "$@") )
elibc_musl? ( $(rust_arch_uri aarch64-unknown-linux-musl "$@") )
)
ppc? ( $(rust_arch_uri powerpc-unknown-linux-gnu "$@") )
ppc64? (
big-endian? ( $(rust_arch_uri powerpc64-unknown-linux-gnu "$@") )
!big-endian? ( $(rust_arch_uri powerpc64le-unknown-linux-gnu "$@") )
)
riscv? (
elibc_glibc? ( $(rust_arch_uri riscv64gc-unknown-linux-gnu "$@") )
)
s390? ( $(rust_arch_uri s390x-unknown-linux-gnu "$@") )
"
# Upstream did not gain support for loong until v1.71.0.
# NOTE: Merge this into the block above after every <1.71.0 version is
# gone from tree.
local arg_version="${1##*-}"
arg_version="${arg_version:-$PV}"
if ver_test "${arg_version}" -ge 1.71.0; then
echo "loong? ( $(rust_arch_uri loongarch64-unknown-linux-gnu "$@") )"
fi
# until https://github.com/rust-lang/rust/pull/113274 is resolved, there
# will not be upstream-built mips artifacts
if ver_test "${arg_version}" -lt 1.72.0; then
echo "mips? (
abi_mips_o32? (
big-endian? ( $(rust_arch_uri mips-unknown-linux-gnu "$@") )
!big-endian? ( $(rust_arch_uri mipsel-unknown-linux-gnu "$@") )
)
abi_mips_n64? (
big-endian? ( $(rust_arch_uri mips64-unknown-linux-gnuabi64 "$@") )
!big-endian? ( $(rust_arch_uri mips64el-unknown-linux-gnuabi64 "$@") )
)
)"
fi
}