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eclass/llvm: Sync with Gentoo

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It's from Gentoo commit 64a5154944610c040453e46284a20b9c2bde4d0e.
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Flatcar Buildbot 2022-10-24 07:49:35 +00:00 committed by Dongsu Park
parent 41738efbd2
commit af99246a92
1 changed files with 63 additions and 0 deletions
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63
sdk_container/src/third_party/portage-stable/eclass/llvm.eclass vendored
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@ -180,6 +180,64 @@ get_llvm_prefix() {
die "No LLVM slot${1:+ <= ${1}} satisfying the package's dependencies found installed!"
}
# @FUNCTION: llvm_fix_clang_version
# @USAGE: <variable-name>...
# @DESCRIPTION:
# Fix the clang compiler name in specified variables to include
# the major version, to prevent PATH alterations from forcing an older
# clang version being used.
llvm_fix_clang_version() {
debug-print-function ${FUNCNAME} "${@}"
local shopt_save=$(shopt -p -o noglob)
set -f
local var
for var; do
local split=( ${!var} )
case ${split[0]} in
*clang|*clang++|*clang-cpp)
local version=()
read -r -a version < <("${split[0]}" --version)
local major=${version[-1]%%.*}
if [[ -n ${major//[0-9]} ]]; then
die "${var}=${!var} produced invalid --version: ${version[*]}"
fi
split[0]+=-${major}
if ! type -P "${split[0]}" &>/dev/null; then
die "${split[0]} does not seem to exist"
fi
declare -g "${var}=${split[*]}"
;;
esac
done
${shopt_save}
}
# @FUNCTION: llvm_fix_tool_path
# @USAGE: <variable-name>...
# @DESCRIPTION:
# Fix the LLVM tools referenced in the specified variables to their
# current location, to prevent PATH alterations from forcing older
# versions being used.
llvm_fix_tool_path() {
debug-print-function ${FUNCNAME} "${@}"
local shopt_save=$(shopt -p -o noglob)
set -f
local var
for var; do
local split=( ${!var} )
local path=$(type -P ${split[0]} 2>/dev/null)
# if it resides in one of the LLVM prefixes, it's an LLVM tool!
if [[ ${path} == "${BROOT}/usr/lib/llvm"* ]]; then
split[0]=${path}
declare -g "${var}=${split[*]}"
fi
done
${shopt_save}
}
# @FUNCTION: llvm_pkg_setup
# @DESCRIPTION:
# Prepend the appropriate executable directory for the newest
@ -198,6 +256,11 @@ llvm_pkg_setup() {
debug-print-function ${FUNCNAME} "${@}"
if [[ ${MERGE_TYPE} != binary ]]; then
llvm_fix_clang_version CC CPP CXX
# keep in sync with profiles/features/llvm/make.defaults!
llvm_fix_tool_path ADDR2LINE AR AS LD NM OBJCOPY OBJDUMP RANLIB
llvm_fix_tool_path READELF STRINGS STRIP
local llvm_path=$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin
local IFS=:
local split_path=( ${PATH} )