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# Copyright 2019-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: llvm.org.eclass
# @MAINTAINER:
# Michał Górny <mgorny@gentoo.org>
# @AUTHOR:
# Michał Górny <mgorny@gentoo.org>
# @SUPPORTED_EAPIS: 7 8
# @BLURB: Common bits for fetching & unpacking llvm.org projects
# @DESCRIPTION:
# The llvm.org eclass provides common code to fetch and unpack parts
# of the llvm.org project tree. It takes care of handling both git
# checkouts and source tarballs, making it possible to unify the code
# of live and release ebuilds and effectively reduce the work needed
# to package new releases/RCs/branches.
#
# In order to use this eclass, the ebuild needs to declare
# LLVM_COMPONENTS and then call llvm.org_set_globals. If tests require
# additional components, they need to be listed in LLVM_TEST_COMPONENTS.
# The eclass exports an implementation of src_unpack() phase.
#
# Example:
# @CODE
# inherit llvm.org
#
# LLVM_COMPONENTS=( lld )
# LLVM_TEST_COMPONENTS=( llvm/utils/lit )
# llvm.org_set_globals
# @CODE
case "${EAPI:-0}" in
7|8)
;;
*)
die "Unsupported EAPI=${EAPI} for ${ECLASS}"
;;
esac
# == internal control bits ==
# @ECLASS_VARIABLE: _LLVM_MASTER_MAJOR
# @INTERNAL
# @DESCRIPTION:
# The major version of current LLVM trunk. Used to determine
# the correct branch to use.
_LLVM_MASTER_MAJOR=16
# @ECLASS_VARIABLE: _LLVM_NEWEST_MANPAGE_RELEASE
# @INTERNAL
# @DESCRIPTION:
# The newest release of LLVM for which manpages were generated.
_LLVM_NEWEST_MANPAGE_RELEASE=14.0.6
# @ECLASS_VARIABLE: _LLVM_SOURCE_TYPE
# @INTERNAL
# @DESCRIPTION:
# Source type to use: 'git' or 'tar'.
if [[ -z ${_LLVM_SOURCE_TYPE+1} ]]; then
if [[ ${PV} == *.9999 ]]; then
_LLVM_SOURCE_TYPE=git
else
_LLVM_SOURCE_TYPE=tar
fi
fi
[[ ${_LLVM_SOURCE_TYPE} == git ]] && inherit git-r3
[[ ${PV} == ${_LLVM_MASTER_MAJOR}.* && ${_LLVM_SOURCE_TYPE} == tar ]] &&
die "${ECLASS}: Release ebuild for master branch?!"
inherit multiprocessing
if ver_test -ge 14.0.5; then
inherit verify-sig
fi
# == control variables ==
# @ECLASS_VARIABLE: LLVM_COMPONENTS
# @REQUIRED
# @DESCRIPTION:
# List of components needed unconditionally. Specified as bash array
# with paths relative to llvm-project git. Automatically translated
# for tarball releases.
#
# The first path specified is used to construct default S.
# @ECLASS_VARIABLE: LLVM_TEST_COMPONENTS
# @DEFAULT_UNSET
# @DESCRIPTION:
# List of additional components needed for tests.
# @ECLASS_VARIABLE: LLVM_MANPAGES
# @DEFAULT_UNSET
# @DESCRIPTION:
# Set to a non-empty value in ebuilds that build manpages via Sphinx.
# The eclass will either include the dependency on dev-python/sphinx
# or pull the pregenerated manpage tarball depending on the package
# version.
# @ECLASS_VARIABLE: LLVM_PATCHSET
# @DEFAULT_UNSET
# @DESCRIPTION:
# LLVM patchset version. No patchset is used if unset.
# @ECLASS_VARIABLE: LLVM_USE_TARGETS
# @DEFAULT_UNSET
# @DESCRIPTION:
# Add LLVM_TARGETS flags. The following values are supported:
#
# - provide - this package provides LLVM targets. USE flags
# and REQUIRED_USE will be added but no dependencies.
#
# - llvm - this package uses targets from LLVM. RDEPEND+DEPEND
# on matching sys-devel/llvm versions with requested flags will
# be added.
#
# Note that you still need to pass enabled targets to the build system,
# usually grabbing them from ${LLVM_TARGETS} (via USE_EXPAND).
# == global data ==
# @ECLASS_VARIABLE: ALL_LLVM_EXPERIMENTAL_TARGETS
# @OUTPUT_VARIABLE
# @DESCRIPTION:
# The complete list of LLVM experimental targets available in this LLVM
# version. The value depends on ${PV}.
# @ECLASS_VARIABLE: ALL_LLVM_PRODUCTION_TARGETS
# @OUTPUT_VARIABLE
# @DESCRIPTION:
# The complete list of LLVM production-ready targets available in this
# LLVM version. The value depends on ${PV}.
# @ECLASS_VARIABLE: ALL_LLVM_TARGET_FLAGS
# @OUTPUT_VARIABLE
# @DESCRIPTION:
# The list of USE flags corresponding to all LLVM targets in this LLVM
# version. The value depends on ${PV}.
case ${PV} in
10*|11*|12*)
# this API is not present for old LLVM versions
;;
13*)
ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY M68k VE )
ALL_LLVM_PRODUCTION_TARGETS=(
AArch64 AMDGPU ARM AVR BPF Hexagon Lanai Mips MSP430 NVPTX
PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore
)
;;
14*)
ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY M68k )
ALL_LLVM_PRODUCTION_TARGETS=(
AArch64 AMDGPU ARM AVR BPF Hexagon Lanai Mips MSP430 NVPTX
PowerPC RISCV Sparc SystemZ VE WebAssembly X86 XCore
)
;;
*)
ALL_LLVM_EXPERIMENTAL_TARGETS=(
ARC CSKY DirectX LoongArch M68k SPIRV
)
ALL_LLVM_PRODUCTION_TARGETS=(
AArch64 AMDGPU ARM AVR BPF Hexagon Lanai Mips MSP430 NVPTX
PowerPC RISCV Sparc SystemZ VE WebAssembly X86 XCore
)
;;
esac
ALL_LLVM_TARGET_FLAGS=(
"${ALL_LLVM_PRODUCTION_TARGETS[@]/#/llvm_targets_}"
"${ALL_LLVM_EXPERIMENTAL_TARGETS[@]/#/llvm_targets_}"
)
# == global scope logic ==
# @FUNCTION: llvm.org_set_globals
# @DESCRIPTION:
# Set global variables. This must be called after setting LLVM_*
# variables used by the eclass.
llvm.org_set_globals() {
if [[ $(declare -p LLVM_COMPONENTS) != "declare -a"* ]]; then
die 'LLVM_COMPONENTS must be an array.'
fi
if declare -p LLVM_TEST_COMPONENTS &>/dev/null; then
if [[ $(declare -p LLVM_TEST_COMPONENTS) != "declare -a"* ]]; then
die 'LLVM_TEST_COMPONENTS must be an array.'
fi
fi
if [[ ${_LLVM_SOURCE_TYPE} == git ]]; then
EGIT_REPO_URI="https://github.com/llvm/llvm-project.git"
[[ ${PV} != ${_LLVM_MASTER_MAJOR}.* ]] &&
EGIT_BRANCH="release/${PV%%.*}.x"
elif [[ ${_LLVM_SOURCE_TYPE} == tar ]]; then
if ver_test -ge 14.0.5; then
SRC_URI+="
https://github.com/llvm/llvm-project/releases/download/llvmorg-${PV/_/-}/llvm-project-${PV/_/}.src.tar.xz
verify-sig? (
https://github.com/llvm/llvm-project/releases/download/llvmorg-${PV/_/-}/llvm-project-${PV/_/}.src.tar.xz.sig
)
"
BDEPEND+="
verify-sig? (
>=sec-keys/openpgp-keys-llvm-15
)
"
VERIFY_SIG_OPENPGP_KEY_PATH=${BROOT}/usr/share/openpgp-keys/llvm.asc
else
SRC_URI+="
https://github.com/llvm/llvm-project/archive/llvmorg-${PV/_/-}.tar.gz
"
fi
else
die "Invalid _LLVM_SOURCE_TYPE: ${LLVM_SOURCE_TYPE}"
fi
S=${WORKDIR}/${LLVM_COMPONENTS[0]}
if [[ -n ${LLVM_TEST_COMPONENTS+1} ]]; then
IUSE+=" test"
RESTRICT+=" !test? ( test )"
fi
if [[ ${LLVM_MANPAGES} ]]; then
# use pregenerated tarball for releases
# up to _LLVM_NEWEST_MANPAGE_RELEASE
if llvm_manpage_dist_available; then
IUSE+=" doc"
SRC_URI+="
!doc? (
https://dev.gentoo.org/~mgorny/dist/llvm/llvm-${PV}-manpages.tar.bz2
)
"
else
IUSE+=" doc"
# NB: this is not always the correct dep but it does no harm
BDEPEND+=" dev-python/sphinx"
fi
fi
if [[ -n ${LLVM_PATCHSET} ]]; then
SRC_URI+="
https://dev.gentoo.org/~mgorny/dist/llvm/llvm-gentoo-patchset-${LLVM_PATCHSET}.tar.xz"
fi
local x
case ${LLVM_USE_TARGETS:-__unset__} in
__unset__)
;;
provide|llvm)
IUSE+=" ${ALL_LLVM_TARGET_FLAGS[*]}"
REQUIRED_USE+=" || ( ${ALL_LLVM_TARGET_FLAGS[*]} )"
;;&
llvm)
local dep=
for x in "${ALL_LLVM_TARGET_FLAGS[@]}"; do
dep+="
${x}? ( ~sys-devel/llvm-${PV}[${x}] )"
done
RDEPEND+=" ${dep}"
DEPEND+=" ${dep}"
;;
esac
# === useful defaults for cmake-based packages ===
# least intrusive of all
CMAKE_BUILD_TYPE=RelWithDebInfo
_LLVM_ORG_SET_GLOBALS_CALLED=1
}
# == phase functions ==
EXPORT_FUNCTIONS src_unpack src_prepare
# @FUNCTION: llvm.org_src_unpack
# @DESCRIPTION:
# Unpack or checkout requested LLVM components.
llvm.org_src_unpack() {
if [[ ! ${_LLVM_ORG_SET_GLOBALS_CALLED} ]]; then
die "llvm.org_set_globals must be called in global scope"
fi
local components=( "${LLVM_COMPONENTS[@]}" )
if [[ ${LLVM_TEST_COMPONENTS+1} ]] && use test; then
components+=( "${LLVM_TEST_COMPONENTS[@]}" )
fi
if [[ ${_LLVM_SOURCE_TYPE} == git ]]; then
git-r3_fetch
git-r3_checkout '' . '' "${components[@]}"
default_src_unpack
else
local archive=llvmorg-${PV/_/-}.tar.gz
if ver_test -ge 14.0.5; then
archive=llvm-project-${PV/_/}.src.tar.xz
if use verify-sig; then
verify-sig_verify_detached \
"${DISTDIR}/${archive}" "${DISTDIR}/${archive}.sig"
fi
fi
ebegin "Unpacking from ${archive}"
if ver_test -ge 14.0.5; then
tar -x -J -o --strip-components 1 \
-f "${DISTDIR}/${archive}" \
"${components[@]/#/${archive%.tar*}/}" || die
else
tar -x -z -o --strip-components 1 \
-f "${DISTDIR}/${archive}" \
"${components[@]/#/llvm-project-${archive%.tar*}/}" || die
fi
eend ${?}
# unpack all remaining distfiles
local x
for x in ${A}; do
[[ ${x} != ${archive} ]] && unpack "${x}"
done
fi
if [[ -n ${LLVM_PATCHSET} ]]; then
local nocomp=$(grep -r -L "^Gentoo-Component:" \
"${WORKDIR}/llvm-gentoo-patchset-${LLVM_PATCHSET}")
if [[ -n ${nocomp} ]]; then
die "Patches lacking Gentoo-Component found: ${nocomp}"
fi
# strip patches that don't match current components
local IFS='|'
grep -E -r -L "^Gentoo-Component:.*(${components[*]})" \
"${WORKDIR}/llvm-gentoo-patchset-${LLVM_PATCHSET}" |
xargs rm
local status=( "${PIPESTATUS[@]}" )
[[ ${status[1]} -ne 0 ]] && die "rm failed"
[[ ${status[0]} -ne 0 ]] &&
die "No patches in the patchset apply to the package"
fi
}
# @FUNCTION: llvm.org_src_prepare
# @DESCRIPTION:
# Call appropriate src_prepare (cmake or default) depending on inherited
# eclasses. Make sure that PATCHES and user patches are applied in top
# ${WORKDIR}, so that patches straight from llvm-project repository
# work correctly with -p1.
llvm.org_src_prepare() {
if [[ -n ${LLVM_PATCHSET} ]]; then
local PATCHES=(
"${PATCHES[@]}"
"${WORKDIR}/llvm-gentoo-patchset-${LLVM_PATCHSET}"
)
fi
pushd "${WORKDIR}" >/dev/null || die
if declare -f cmake_src_prepare >/dev/null; then
CMAKE_USE_DIR=${S}
if [[ ${EAPI} == 7 ]]; then
# cmake eclasses force ${S} for default_src_prepare in EAPI 7
# but use ${CMAKE_USE_DIR} for everything else
local S=${WORKDIR}
fi
cmake_src_prepare
else
default_src_prepare
fi
popd >/dev/null || die
}
# == helper functions ==
# @ECLASS_VARIABLE: LIT_JOBS
# @USER_VARIABLE
# @DEFAULT_UNSET
# @DESCRIPTION:
# Number of test jobs to run simultaneously. If unset, defaults
# to '-j' in MAKEOPTS. If that is not found, default to nproc.
# @FUNCTION: get_lit_flags
# @DESCRIPTION:
# Get the standard recommended lit flags for running tests, in CMake
# list form (;-separated).
get_lit_flags() {
echo "-vv;-j;${LIT_JOBS:-$(makeopts_jobs)}"
}
# @FUNCTION: llvm_manpage_dist_available
# @DESCRIPTION:
# Return true (0) if this LLVM version features prebuilt manpage
# tarball, false (1) otherwise.
llvm_manpage_dist_available() {
[[ ${_LLVM_SOURCE_TYPE} == tar ]] &&
ver_test "${PV}" -le "${_LLVM_NEWEST_MANPAGE_RELEASE}"
}
# @FUNCTION: llvm_are_manpages_built
# @DESCRIPTION:
# Return true (0) if manpages are going to be built from source,
# false (1) if preinstalled manpages will be used.
llvm_are_manpages_built() {
use doc || ! llvm_manpage_dist_available
}
# @FUNCTION: llvm_install_manpages
# @DESCRIPTION:
# Install pregenerated manpages if available. No-op otherwise.
llvm_install_manpages() {
# install pre-generated manpages
if ! llvm_are_manpages_built; then
# (doman does not support custom paths)
insinto "/usr/lib/llvm/${SLOT}/share/man/man1"
doins "${WORKDIR}/llvm-${PV}-manpages/${LLVM_COMPONENTS[0]}"/*.1
fi
}
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