llvm-project/libcxx/utils/ci/run-buildbot
Louis Dionne 60fe1f59d0 [runtimes][ci] Run the tests for libunwind in the CI
We should arguably have always been doing that. The state of libunwind
is quite sad, so this commit adds several XFAILs to make the CI pass.
We need to investigate why so many tests are not passing in some
configurations, but I'll defer that to folks who actually work on
libunwind for lack of bandwidth.

Differential Revision: https://reviews.llvm.org/D110872
2021-10-06 11:25:26 -04:00

595 lines
20 KiB
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Executable File

#!/usr/bin/env bash
#===----------------------------------------------------------------------===##
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
#===----------------------------------------------------------------------===##
set -ex
set -o pipefail
unset LANG
unset LC_ALL
unset LC_COLLATE
PROGNAME="$(basename "${0}")"
function usage() {
cat <<EOF
Usage:
${PROGNAME} [options] <BUILDER>
[-h|--help] Display this help and exit.
--llvm-root <DIR> Path to the root of the LLVM monorepo. By default, we try
to figure it out based on the current working directory.
--build-dir <DIR> The directory to use for building the library. By default,
this is '<llvm-root>/build/<builder>'.
--osx-roots <DIR> Path to pre-downloaded macOS dylibs. By default, we download
them from Green Dragon. This is only relevant at all when
running back-deployment testing if one wants to override
the old dylibs we use to run the tests with different ones.
EOF
}
while [[ $# -gt 0 ]]; do
case ${1} in
-h|--help)
usage
exit 0
;;
--llvm-root)
MONOREPO_ROOT="${2}"
shift; shift
;;
--build-dir)
BUILD_DIR="${2}"
shift; shift
;;
--osx-roots)
OSX_ROOTS="${2}"
shift; shift
;;
*)
BUILDER="${1}"
shift
;;
esac
done
MONOREPO_ROOT="${MONOREPO_ROOT:="$(git rev-parse --show-toplevel)"}"
BUILD_DIR="${BUILD_DIR:=${MONOREPO_ROOT}/build/${BUILDER}}"
INSTALL_DIR="${BUILD_DIR}/install"
# If we can find Ninja/CMake provided by Xcode, use those since we know their
# version will generally work with the Clang shipped in Xcode (e.g. if Clang
# knows about -std=c++20, the CMake bundled in Xcode will probably know about
# that flag too).
if xcrun --find ninja &>/dev/null; then NINJA="$(xcrun --find ninja)"; else NINJA="ninja"; fi
if xcrun --find cmake &>/dev/null; then CMAKE="$(xcrun --find cmake)"; else CMAKE="cmake"; fi
function clean() {
rm -rf "${BUILD_DIR}"
}
function generate-cmake-base() {
echo "--- Generating CMake"
${CMAKE} \
-B "${BUILD_DIR}" \
-GNinja -DCMAKE_MAKE_PROGRAM="${NINJA}" \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
-DLLVM_LIT_ARGS="-sv --show-unsupported --xunit-xml-output test-results.xml" \
"${@}"
}
function generate-cmake() {
generate-cmake-base \
-S "${MONOREPO_ROOT}/llvm" \
-DLLVM_ENABLE_PROJECTS="libcxx;libunwind;libcxxabi" \
-DLIBCXX_CXX_ABI=libcxxabi \
"${@}"
}
function generate-cmake-libcxx-win() {
# TODO: Clang-cl in MSVC configurations don't have access to compiler_rt
# builtins helpers for int128 division. See
# https://reviews.llvm.org/D91139#2429595 for a comment about longterm
# intent for handling the issue. In the meantime, define
# -D_LIBCPP_HAS_NO_INT128 (both when building the library itself and
# when building tests) to allow enabling filesystem for running tests,
# even if it uses a non-permanent ABI.
generate-cmake-base \
-S "${MONOREPO_ROOT}/libcxx" \
-DCMAKE_C_COMPILER=clang-cl \
-DCMAKE_CXX_COMPILER=clang-cl \
-DLIBCXX_ENABLE_FILESYSTEM=YES \
-DCMAKE_CXX_FLAGS="-D_LIBCPP_HAS_NO_INT128" \
-DLIBCXX_TEST_COMPILER_FLAGS="-D_LIBCPP_HAS_NO_INT128" \
"${@}"
}
function check-runtimes() {
echo "--- Installing libc++, libc++abi and libunwind to a fake location"
${NINJA} -vC "${BUILD_DIR}" install-cxx install-cxxabi install-unwind
echo "+++ Running the libc++ tests"
${NINJA} -vC "${BUILD_DIR}" check-cxx
echo "+++ Running the libc++abi tests"
${NINJA} -vC "${BUILD_DIR}" check-cxxabi
echo "+++ Running the libunwind tests"
${NINJA} -vC "${BUILD_DIR}" check-unwind
}
# TODO: The goal is to test this against all configurations. We should also move
# this to the Lit test suite instead of being a separate CMake target.
function check-abi-list() {
echo "+++ Running the libc++ ABI list test"
${NINJA} -vC "${BUILD_DIR}" check-cxx-abilist || (
echo "+++ Generating the libc++ ABI list after failed check"
${NINJA} -vC "${BUILD_DIR}" generate-cxx-abilist
false
)
}
function check-cxx-benchmarks() {
echo "--- Running the benchmarks"
${NINJA} -vC "${BUILD_DIR}" check-cxx-benchmarks
}
# Print the version of a few tools to aid diagnostics in some cases
${CMAKE} --version
${NINJA} --version
case "${BUILDER}" in
check-format)
clean
echo "+++ Checking formatting"
# We need to set --extensions so that clang-format checks extensionless files.
mkdir -p ${BUILD_DIR}
git-clang-format \
--binary /usr/bin/clang-format --diff \
--extensions ',h,hh,hpp,hxx,c,cc,cxx,cpp' HEAD~1 \
-- \
libcxx/{benchmarks,include,src,test} \
libcxxabi/{fuzz,include,src,test} \
| tee ${BUILD_DIR}/clang-format.patch
# Check if the diff is empty, fail otherwise.
! grep -q '^--- a' ${BUILD_DIR}/clang-format.patch
;;
check-generated-output)
# `! foo` doesn't work properly with `set -e`, use `! foo || false` instead.
# https://stackoverflow.com/questions/57681955/set-e-does-not-respect-logical-not
clean
generate-cmake
# Reject patches that forgot to re-run the generator scripts.
echo "+++ Making sure the generator scripts were run"
${NINJA} -vC "${BUILD_DIR}" libcxx-generate-files
git diff | tee ${BUILD_DIR}/generated_output.patch
git ls-files -o --exclude-standard | tee ${BUILD_DIR}/generated_output.status
! grep -q '^--- a' ${BUILD_DIR}/generated_output.patch || false
if [ -s ${BUILD_DIR}/generated_output.status ]; then
echo "It looks like not all the generator scripts were run,"
echo "did you forget to build the libcxx-generate-files target?"
echo "Did you add all new files it generated?"
false
fi
# Reject patches that introduce non-ASCII characters or hard tabs.
# Depends on LC_COLLATE set at the top of this script.
! grep -rn '[^ -~]' libcxx/include/ || false
# Reject patches that introduce dependency cycles in the headers.
python3 libcxx/utils/graph_header_deps.py >/dev/null
;;
generic-cxx03)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-cxx03.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
check-abi-list
;;
generic-cxx11)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-cxx11.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
check-abi-list
;;
generic-cxx14)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-cxx14.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
check-abi-list
;;
generic-cxx17)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-cxx17.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
check-abi-list
;;
generic-cxx20)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-cxx20.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
check-abi-list
;;
generic-cxx2b)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-cxx2b.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
check-abi-list
;;
generic-assertions)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-assertions.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
check-abi-list
;;
generic-debug-iterators)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-debug-iterators.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
check-abi-list
;;
generic-noexceptions)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-noexceptions.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-modules)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-modules.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-static)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-static.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-static.cfg.in"
check-runtimes
;;
generic-32bit)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-32bits.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-clang-11)
export CC=clang-11
export CXX=clang++-11
clean
generate-cmake -DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-clang-12)
export CC=clang-12
export CXX=clang++-12
clean
generate-cmake -DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-gcc)
export CC=gcc-11
export CXX=g++-11
clean
generate-cmake
check-runtimes
;;
generic-gcc-cxx11)
export CC=gcc-11
export CXX=g++-11
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-cxx11.cmake"
check-runtimes
;;
generic-asan)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-asan.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-msan)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-msan.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-tsan)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-tsan.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-ubsan)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-ubsan.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-with_llvm_unwinder)
clean
generate-cmake -DLIBCXXABI_USE_LLVM_UNWINDER=ON \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-singlethreaded)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-singlethreaded.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-no-debug)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-no-debug.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-no-filesystem)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-no-filesystem.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-no-random_device)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-no-random_device.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-no-localization)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-no-localization.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
generic-no-unicode)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-no-unicode.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
x86_64-apple-system)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Apple.cmake" \
-DLIBCXX_TEST_CONFIG="apple-libc++-shared.cfg.in"
check-runtimes
;;
x86_64-apple-system-noexceptions)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Apple.cmake" \
-DLIBCXX_ENABLE_EXCEPTIONS=OFF \
-DLIBCXXABI_ENABLE_EXCEPTIONS=OFF \
-DLIBCXX_TEST_CONFIG="apple-libc++-shared.cfg.in"
check-runtimes
;;
x86_64-apple-system-backdeployment-*)
clean
if [[ "${OSX_ROOTS}" == "" ]]; then
echo "--- Downloading previous macOS dylibs"
PREVIOUS_DYLIBS_URL="https://dl.dropboxusercontent.com/s/liu4fmc53qzlfly/libcxx-roots.tar.gz"
OSX_ROOTS="${BUILD_DIR}/macos-roots"
mkdir -p "${OSX_ROOTS}"
curl "${PREVIOUS_DYLIBS_URL}" | tar -xz --strip-components=1 -C "${OSX_ROOTS}"
fi
DEPLOYMENT_TARGET="${BUILDER#x86_64-apple-system-backdeployment-}"
# TODO: On Apple platforms, we never produce libc++abi.1.dylib, always libc++abi.dylib.
# Fix that in the build so that the tests stop searching for @rpath/libc++abi.1.dylib.
cp "${OSX_ROOTS}/macOS/libc++abi/${DEPLOYMENT_TARGET}/libc++abi.dylib" \
"${OSX_ROOTS}/macOS/libc++abi/${DEPLOYMENT_TARGET}/libc++abi.1.dylib"
PARAMS="target_triple=x86_64-apple-macosx${DEPLOYMENT_TARGET}"
PARAMS+=";cxx_runtime_root=${OSX_ROOTS}/macOS/libc++/${DEPLOYMENT_TARGET}"
PARAMS+=";abi_runtime_root=${OSX_ROOTS}/macOS/libc++abi/${DEPLOYMENT_TARGET}"
PARAMS+=";use_system_cxx_lib=True"
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Apple.cmake" \
-DLIBCXX_TEST_PARAMS="${PARAMS}" \
-DLIBCXXABI_TEST_PARAMS="${PARAMS}"
check-runtimes
;;
benchmarks)
clean
generate-cmake -DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-cxx-benchmarks
;;
documentation)
clean
generate-cmake -DLLVM_ENABLE_SPHINX=ON
echo "+++ Generating documentation"
${NINJA} -vC "${BUILD_DIR}" docs-libcxx-html
;;
unified-standalone)
clean
echo "--- Generating CMake"
${CMAKE} \
-S "${MONOREPO_ROOT}/libcxx/utils/ci/runtimes" \
-B "${BUILD_DIR}" \
-GNinja -DCMAKE_MAKE_PROGRAM="${NINJA}" \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
-DLLVM_ENABLE_PROJECTS="libcxx;libcxxabi;libunwind" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
new-standalone)
clean
echo "--- Generating CMake"
${CMAKE} \
-S "${MONOREPO_ROOT}/runtimes" \
-B "${BUILD_DIR}" \
-GNinja -DCMAKE_MAKE_PROGRAM="${NINJA}" \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
-DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi;libunwind" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
runtimes-build)
clean
echo "--- Generating CMake"
# TODO: We currently enable modules and assertions in the runtimes build
# because that provides coverage for some specific Clang failures
# we've been seeing recently, however it would be better to instead
# run all CI configurations against a Clang that has assertions enabled.
${CMAKE} \
-S "${MONOREPO_ROOT}/llvm" \
-B "${BUILD_DIR}" \
-GNinja -DCMAKE_MAKE_PROGRAM="${NINJA}" \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
-DLLVM_ENABLE_PROJECTS="clang" \
-DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi" \
-DLLVM_RUNTIME_TARGETS="x86_64-unknown-linux-gnu" \
-DLLVM_ENABLE_ASSERTIONS=ON \
-C "${MONOREPO_ROOT}/libcxx/cmake/caches/Generic-modules.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
echo "+++ Running the libc++ and libc++abi tests"
${NINJA} -C "${BUILD_DIR}" check-runtimes
echo "--- Installing libc++ and libc++abi to a fake location"
${NINJA} -C "${BUILD_DIR}" install-runtimes
;;
legacy-test-config)
clean
generate-cmake -DLIBCXX_TEST_CONFIG="legacy.cfg.in"
check-runtimes
;;
legacy-standalone)
clean
echo "--- Generating CMake"
${CMAKE} \
-S "${MONOREPO_ROOT}/libcxx" \
-B "${BUILD_DIR}/libcxx" \
-GNinja -DCMAKE_MAKE_PROGRAM="${NINJA}" \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
-DLLVM_PATH="${MONOREPO_ROOT}/llvm" \
-DLIBCXX_CXX_ABI=libcxxabi \
-DLIBCXX_CXX_ABI_INCLUDE_PATHS="${MONOREPO_ROOT}/libcxxabi/include" \
-DLIBCXX_CXX_ABI_LIBRARY_PATH="${BUILD_DIR}/libcxxabi/lib"
${CMAKE} \
-S "${MONOREPO_ROOT}/libcxxabi" \
-B "${BUILD_DIR}/libcxxabi" \
-GNinja -DCMAKE_MAKE_PROGRAM="${NINJA}" \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
-DLLVM_PATH="${MONOREPO_ROOT}/llvm" \
-DLIBCXXABI_LIBCXX_PATH="${MONOREPO_ROOT}/libcxx" \
-DLIBCXXABI_LIBCXX_INCLUDES="${BUILD_DIR}/libcxx/include/c++/v1" \
-DLIBCXXABI_LIBCXX_LIBRARY_PATH="${BUILD_DIR}/libcxx/lib"
echo "+++ Generating libc++ headers"
${NINJA} -vC "${BUILD_DIR}/libcxx" generate-cxx-headers
echo "+++ Building libc++abi"
${NINJA} -vC "${BUILD_DIR}/libcxxabi" cxxabi
echo "+++ Building libc++"
${NINJA} -vC "${BUILD_DIR}/libcxx" cxx
echo "+++ Running the libc++ tests"
${NINJA} -vC "${BUILD_DIR}/libcxx" check-cxx
echo "+++ Running the libc++abi tests"
${NINJA} -vC "${BUILD_DIR}/libcxxabi" check-cxxabi
;;
aarch64)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/AArch64.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
aarch64-noexceptions)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/AArch64.cmake" \
-DLIBCXX_ENABLE_EXCEPTIONS=OFF \
-DLIBCXXABI_ENABLE_EXCEPTIONS=OFF \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
# Aka Armv8 32 bit
armv8)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Armv8Arm.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
armv8-noexceptions)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Armv8Thumb-noexceptions.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
# Armv7 32 bit. One building Arm only one Thumb only code.
armv7)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Armv7Arm.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
armv7-noexceptions)
clean
generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/Armv7Thumb-noexceptions.cmake" \
-DLIBCXX_TEST_CONFIG="llvm-libc++-shared.cfg.in"
check-runtimes
;;
windows-dll)
clean
# TODO: Currently, building with the experimental library breaks running
# tests (the test linking look for the c++experimental library with the
# wrong name, and the statically linked c++experimental can't be linked
# correctly when libc++ visibility attributes indicate dllimport linkage
# anyway), thus just disable the experimental library. Remove this
# setting when cmake and the test driver does the right thing automatically.
generate-cmake-libcxx-win -DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
echo "+++ Running the libc++ tests"
${NINJA} -vC "${BUILD_DIR}" check-cxx
;;
windows-static)
clean
generate-cmake-libcxx-win -DLIBCXX_ENABLE_SHARED=OFF
echo "+++ Running the libc++ tests"
${NINJA} -vC "${BUILD_DIR}" check-cxx
;;
#################################################################
# Insert vendor-specific internal configurations below.
#
# This allows vendors to extend this file with their own internal
# configurations without running into merge conflicts with upstream.
#################################################################
#################################################################
*)
echo "${BUILDER} is not a known configuration"
exit 1
;;
esac