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[runtimes] Remove support for standalone builds
Standalone build have been deprecated for some time now, so this commit removes support for those builds entirely from libc++, libc++abi and libunwind. This, along with the removal of other legacy ways to build, will allow for major build system simplifications. Differential Revision: https://reviews.llvm.org/D119255
This commit is contained in:
Louis Dionne
parent
eceb40183c
commit
6f17768e11
@ -27,6 +27,9 @@ set(LIBCXX_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
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set(LIBCXX_BINARY_INCLUDE_DIR "${LIBCXX_BINARY_DIR}/include/c++build")
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR LIBCXX_STANDALONE_BUILD)
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message(FATAL_ERROR "The Standalone build has been deprecated since LLVM 14, and it is not supported anymore. "
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"Please use one of the ways described at https://libcxx.llvm.org/BuildingLibcxx.html for "
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"building libc++.")
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project(libcxx CXX C)
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set(PACKAGE_NAME libcxx)
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@ -57,3 +57,7 @@ ABI Changes
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Build System Changes
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--------------------
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- Support for standalone builds have been entirely removed from libc++, libc++abi and
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libunwind. Please use :ref:`these instructions <build instructions>` for building
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libc++, libc++abi and/or libunwind.
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@ -297,19 +297,6 @@ steps:
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limit: 2
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timeout_in_minutes: 120
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- label: "Legacy standalone build"
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command: "libcxx/utils/ci/run-buildbot legacy-standalone"
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artifact_paths:
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- "**/test-results.xml"
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agents:
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queue: "libcxx-builders"
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os: "linux"
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retry:
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automatic:
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- exit_status: -1 # Agent was lost
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limit: 2
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timeout_in_minutes: 120
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- label: "Legacy LLVM_ENABLE_PROJECTS build"
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command: "libcxx/utils/ci/run-buildbot legacy-project-build"
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artifact_paths:
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@ -516,48 +516,6 @@ legacy-project-build)
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-DLIBCXX_CXX_ABI=libcxxabi
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check-runtimes
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;;
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legacy-standalone)
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clean
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echo "--- Generating CMake"
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${CMAKE} \
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-S "${MONOREPO_ROOT}/libcxx" \
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-B "${BUILD_DIR}/libcxx" \
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-GNinja -DCMAKE_MAKE_PROGRAM="${NINJA}" \
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-DCMAKE_BUILD_TYPE=RelWithDebInfo \
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-DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
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-DLLVM_PATH="${MONOREPO_ROOT}/llvm" \
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-DLIBCXX_CXX_ABI=libcxxabi \
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-DLIBCXX_INCLUDE_BENCHMARKS=OFF \
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-DLIBCXX_CXX_ABI_INCLUDE_PATHS="${MONOREPO_ROOT}/libcxxabi/include" \
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-DLIBCXX_CXX_ABI_LIBRARY_PATH="${BUILD_DIR}/libcxxabi/lib"
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${CMAKE} \
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-S "${MONOREPO_ROOT}/libcxxabi" \
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-B "${BUILD_DIR}/libcxxabi" \
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-GNinja -DCMAKE_MAKE_PROGRAM="${NINJA}" \
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-DCMAKE_BUILD_TYPE=RelWithDebInfo \
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-DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
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-DLLVM_PATH="${MONOREPO_ROOT}/llvm" \
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-DLIBCXXABI_LIBCXX_PATH="${MONOREPO_ROOT}/libcxx" \
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-DLIBCXXABI_LIBCXX_INCLUDES="${BUILD_DIR}/libcxx/include/c++/v1" \
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-DLIBCXXABI_LIBCXX_LIBRARY_PATH="${BUILD_DIR}/libcxx/lib"
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echo "+++ Generating libc++ headers"
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${NINJA} -vC "${BUILD_DIR}/libcxx" generate-cxx-headers
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echo "+++ Building libc++abi"
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${NINJA} -vC "${BUILD_DIR}/libcxxabi" cxxabi
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echo "+++ Building libc++"
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${NINJA} -vC "${BUILD_DIR}/libcxx" cxx
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echo "+++ Running the libc++ tests"
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${NINJA} -vC "${BUILD_DIR}/libcxx" check-cxx
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echo "+++ Running the libc++abi tests"
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${NINJA} -vC "${BUILD_DIR}/libcxxabi" check-cxxabi
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;;
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aarch64)
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clean
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generate-cmake -C "${MONOREPO_ROOT}/libcxx/cmake/caches/AArch64.cmake" \
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@ -28,6 +28,10 @@ set(LIBCXXABI_LIBCXX_PATH "${CMAKE_CURRENT_LIST_DIR}/../libcxx" CACHE PATH
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"Specify path to libc++ source.")
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR LIBCXXABI_STANDALONE_BUILD)
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message(FATAL_ERROR "The Standalone build has been deprecated since LLVM 14, and it is not supported anymore. "
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"Please use one of the ways described at https://libcxx.llvm.org/BuildingLibcxx.html for "
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"building libc++abi.")
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project(libcxxabi CXX C)
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set(PACKAGE_NAME libcxxabi)
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@ -73,51 +73,13 @@
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<h2>Get it and get involved!</h2>
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<!--=====================================================================-->
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<p>To check out the code (including llvm and others), use:</p>
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<ul>
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<li><code>git clone https://github.com/llvm/llvm-project.git</code></li>
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</ul>
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<p>To build:</p>
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<ul>
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<li><code>cd llvm-project</code></li>
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<li><code>mkdir build && cd build</code></li>
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<li><code>cmake -DLLVM_ENABLE_PROJECTS=libcxxabi ../llvm # on linux you may need to specify -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++</code></li>
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<li><code>make</code></li>
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</ul>
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<p>To do a standalone build:</p>
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<ul>
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<li>
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Check out the source tree. This includes the other subprojects, but you'll only use the libcxxabi part.
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</li>
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<li><code>cd llvm-project</code></li>
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<li><code>mkdir build-libcxxabi && cd build-libcxxabi</code></li>
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<li><code>cmake ../libcxxabi # on linux you may need -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++</code></li>
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<li><code>make</code></li>
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</ul>
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<p> By default CMake uses <code>llvm-config</code> to locate the required
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LLVM sources. If CMake cannot find <code>llvm-config</code> then you must
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configure CMake using either of the following options.
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</p>
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<ul>
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<li><code>-DLLVM_CONFIG_PATH=path/to/llvm-config</code></li>
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<li><code>-DLLVM_PATH=path/to/llvm-source-root</code></li>
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</ul>
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<p>For building libc++abi, please see the libc++ documentation on
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<a href="https://libcxx.llvm.org/BuildingLibcxx.html">building the runtimes</a>.
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</p>
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<p>To run the tests:</p>
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<ul>
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<li><code>make check-cxxabi</code></li>
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</ul>
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<p>Note: in a standalone build, the system's libc++ will be used for tests. If
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the system's libc++ was statically linked against libc++abi (or linked against
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a different ABI library), this may interfere with test results.</p>
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<p>Send discussions to the
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(<a href="https://lists.llvm.org/mailman/listinfo/libcxx-dev">libcxx-dev mailing list</a>).</p>
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<p>For getting involved with libc++abi, please see the libc++ documentation on
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<a href="https://libcxx.llvm.org/Contributing.html">getting involved</a>.
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</p>
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<!--=====================================================================-->
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<h2>Frequently asked questions</h2>
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@ -24,6 +24,10 @@ set(LIBUNWIND_LIBCXX_PATH "${CMAKE_CURRENT_LIST_DIR}/../libcxx" CACHE PATH
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"Specify path to libc++ source.")
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR LIBUNWIND_STANDALONE_BUILD)
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message(FATAL_ERROR "The Standalone build has been deprecated since LLVM 14, and it is not supported anymore. "
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"Please use one of the ways described at https://libcxx.llvm.org/BuildingLibcxx.html for "
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"building libunwind.")
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# We may have an incomplete toolchain - do language support tests without
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# linking.
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include(EnableLanguageNolink)
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