diff options
Diffstat (limited to 'pkgs/development/compilers/llvm/7/clang')
3 files changed, 526 insertions, 6 deletions
diff --git a/pkgs/development/compilers/llvm/7/clang/default.nix b/pkgs/development/compilers/llvm/7/clang/default.nix index 4ab13441e36..187602ef361 100644 --- a/pkgs/development/compilers/llvm/7/clang/default.nix +++ b/pkgs/development/compilers/llvm/7/clang/default.nix @@ -1,4 +1,5 @@ -{ lib, stdenv, fetch, cmake, libxml2, llvm, version, clang-tools-extra_src, python3, lld +{ lib, stdenv, fetch, cmake, libxml2, libllvm, version, clang-tools-extra_src, python3 +, buildLlvmTools , fixDarwinDylibNames , enableManpages ? false , enablePolly ? false # TODO: get this info from llvm (passthru?) @@ -23,17 +24,21 @@ let ++ lib.optional enableManpages python3.pkgs.sphinx ++ lib.optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames; - buildInputs = [ libxml2 llvm lld ]; + buildInputs = [ libxml2 libllvm ]; cmakeFlags = [ "-DCMAKE_CXX_FLAGS=-std=c++11" "-DLLVM_ENABLE_RTTI=ON" + "-DLLVM_CONFIG_PATH=${libllvm.dev}/bin/llvm-config${lib.optionalString (stdenv.hostPlatform != stdenv.buildPlatform) "-native"}" ] ++ lib.optionals enableManpages [ "-DCLANG_INCLUDE_DOCS=ON" "-DLLVM_ENABLE_SPHINX=ON" "-DSPHINX_OUTPUT_MAN=ON" "-DSPHINX_OUTPUT_HTML=OFF" "-DSPHINX_WARNINGS_AS_ERRORS=OFF" + ] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [ + "-DLLVM_TABLEGEN_EXE=${buildLlvmTools.llvm}/bin/llvm-tblgen" + "-DCLANG_TABLEGEN=${buildLlvmTools.libclang.dev}/bin/clang-tblgen" ] ++ lib.optionals enablePolly [ "-DWITH_POLLY=ON" "-DLINK_POLLY_INTO_TOOLS=ON" @@ -43,6 +48,10 @@ let ./purity.patch # make clang -xhip use $PATH to find executables ./HIP-use-PATH-7.patch + # Backport for the `--unwindlib=[libgcc|compiler-rt]` flag, which is + # needed for our bootstrapping to not interfere with C. + ./unwindlib.patch + ./gnu-install-dirs.patch ]; postPatch = '' @@ -59,12 +68,12 @@ let --replace "NOT HAVE_CXX_ATOMICS64_WITHOUT_LIB" FALSE ''; - outputs = [ "out" "lib" "python" ]; + outputs = [ "out" "lib" "dev" "python" ]; # Clang expects to find LLVMgold in its own prefix postInstall = '' - if [ -e ${llvm}/lib/LLVMgold.so ]; then - ln -sv ${llvm}/lib/LLVMgold.so $out/lib + if [ -e ${libllvm.lib}/lib/LLVMgold.so ]; then + ln -sv ${libllvm.lib}/lib/LLVMgold.so $lib/lib fi ln -sv $out/bin/clang $out/bin/cpp @@ -81,11 +90,14 @@ let fi mv $out/share/clang/*.py $python/share/clang rm $out/bin/c-index-test + + mkdir -p $dev/bin + cp bin/clang-tblgen $dev/bin ''; passthru = { isClang = true; - inherit llvm; + inherit libllvm; }; meta = { diff --git a/pkgs/development/compilers/llvm/7/clang/gnu-install-dirs.patch b/pkgs/development/compilers/llvm/7/clang/gnu-install-dirs.patch new file mode 100644 index 00000000000..540c043a2db --- /dev/null +++ b/pkgs/development/compilers/llvm/7/clang/gnu-install-dirs.patch @@ -0,0 +1,281 @@ +diff --git a/CMakeLists.txt b/CMakeLists.txt +index 52b881939499..85662a2113e7 100644 +--- a/CMakeLists.txt ++++ b/CMakeLists.txt +@@ -5,6 +5,8 @@ cmake_minimum_required(VERSION 3.4.3) + if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR ) + project(Clang) + ++ include(GNUInstallDirs) ++ + # Rely on llvm-config. + set(CONFIG_OUTPUT) + find_program(LLVM_CONFIG "llvm-config") +@@ -374,7 +376,7 @@ include_directories(BEFORE + + if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY) + install(DIRECTORY include/clang include/clang-c +- DESTINATION include ++ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} + FILES_MATCHING + PATTERN "*.def" + PATTERN "*.h" +@@ -383,7 +385,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY) + ) + + install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/clang +- DESTINATION include ++ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} + FILES_MATCHING + PATTERN "CMakeFiles" EXCLUDE + PATTERN "*.inc" +@@ -391,7 +393,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY) + ) + + install(PROGRAMS utils/bash-autocomplete.sh +- DESTINATION share/clang ++ DESTINATION ${CMAKE_INSTALL_DATADIR}/clang + ) + endif() + +diff --git a/cmake/modules/AddClang.cmake b/cmake/modules/AddClang.cmake +index c09a8423f9f6..39f37e0097eb 100644 +--- a/cmake/modules/AddClang.cmake ++++ b/cmake/modules/AddClang.cmake +@@ -99,9 +99,9 @@ macro(add_clang_library name) + install(TARGETS ${name} + COMPONENT ${name} + ${export_to_clangtargets} +- LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} +- ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX} +- RUNTIME DESTINATION bin) ++ LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX} ++ ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX} ++ RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) + + if (${ARG_SHARED} AND NOT CMAKE_CONFIGURATION_TYPES) + add_llvm_install_targets(install-${name} +@@ -141,7 +141,7 @@ macro(add_clang_tool name) + + install(TARGETS ${name} + ${export_to_clangtargets} +- RUNTIME DESTINATION bin ++ RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} + COMPONENT ${name}) + + if(NOT CMAKE_CONFIGURATION_TYPES) +@@ -156,5 +156,5 @@ endmacro() + macro(add_clang_symlink name dest) + add_llvm_tool_symlink(${name} ${dest} ALWAYS_GENERATE) + # Always generate install targets +- llvm_install_symlink(${name} ${dest} ALWAYS_GENERATE) ++ llvm_install_symlink(${name} ${dest} ${CMAKE_INSTALL_FULL_BINDIR} ALWAYS_GENERATE) + endmacro() +diff --git a/lib/Headers/CMakeLists.txt b/lib/Headers/CMakeLists.txt +index 1930d8e225c7..bb9158093079 100644 +--- a/lib/Headers/CMakeLists.txt ++++ b/lib/Headers/CMakeLists.txt +@@ -162,19 +162,19 @@ install( + FILES ${files} ${CMAKE_CURRENT_BINARY_DIR}/arm_neon.h + COMPONENT clang-headers + PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ +- DESTINATION lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}/include) ++ DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}/include) + + install( + FILES ${files} ${CMAKE_CURRENT_BINARY_DIR}/arm_fp16.h + COMPONENT clang-headers + PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ +- DESTINATION lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}/include) ++ DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}/include) + + install( + FILES ${cuda_wrapper_files} + COMPONENT clang-headers + PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ +- DESTINATION lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}/include/cuda_wrappers) ++ DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}/include/cuda_wrappers) + + if (NOT CMAKE_CONFIGURATION_TYPES) # don't add this for IDE's. + add_llvm_install_targets(install-clang-headers +diff --git a/tools/c-index-test/CMakeLists.txt b/tools/c-index-test/CMakeLists.txt +index 53e3421f1b35..79ae5bb4c399 100644 +--- a/tools/c-index-test/CMakeLists.txt ++++ b/tools/c-index-test/CMakeLists.txt +@@ -54,7 +54,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY) + set_property(TARGET c-index-test APPEND PROPERTY INSTALL_RPATH + "@executable_path/../../lib") + else() +- set(INSTALL_DESTINATION bin) ++ set(INSTALL_DESTINATION ${CMAKE_INSTALL_BINDIR}) + endif() + + install(TARGETS c-index-test +diff --git a/tools/clang-check/CMakeLists.txt b/tools/clang-check/CMakeLists.txt +index c5ace26c2914..97bdfca7d896 100644 +--- a/tools/clang-check/CMakeLists.txt ++++ b/tools/clang-check/CMakeLists.txt +@@ -20,4 +20,4 @@ target_link_libraries(clang-check + ) + + install(TARGETS clang-check +- RUNTIME DESTINATION bin) ++ RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) +diff --git a/tools/clang-format/CMakeLists.txt b/tools/clang-format/CMakeLists.txt +index a295e8cd0b2a..1973ff82c7f6 100644 +--- a/tools/clang-format/CMakeLists.txt ++++ b/tools/clang-format/CMakeLists.txt +@@ -21,20 +21,20 @@ if( LLVM_LIB_FUZZING_ENGINE OR LLVM_USE_SANITIZE_COVERAGE ) + endif() + + install(PROGRAMS clang-format-bbedit.applescript +- DESTINATION share/clang ++ DESTINATION ${CMAKE_INSTALL_DATADIR}/clang + COMPONENT clang-format) + install(PROGRAMS clang-format-diff.py +- DESTINATION share/clang ++ DESTINATION ${CMAKE_INSTALL_DATADIR}/clang + COMPONENT clang-format) + install(PROGRAMS clang-format-sublime.py +- DESTINATION share/clang ++ DESTINATION ${CMAKE_INSTALL_DATADIR}/clang + COMPONENT clang-format) + install(PROGRAMS clang-format.el +- DESTINATION share/clang ++ DESTINATION ${CMAKE_INSTALL_DATADIR}/clang + COMPONENT clang-format) + install(PROGRAMS clang-format.py +- DESTINATION share/clang ++ DESTINATION ${CMAKE_INSTALL_DATADIR}/clang + COMPONENT clang-format) + install(PROGRAMS git-clang-format +- DESTINATION bin ++ DESTINATION ${CMAKE_INSTALL_BINDIR} + COMPONENT clang-format) +diff --git a/tools/clang-func-mapping/CMakeLists.txt b/tools/clang-func-mapping/CMakeLists.txt +index ae28e28d532d..8ecb2e37a8f7 100644 +--- a/tools/clang-func-mapping/CMakeLists.txt ++++ b/tools/clang-func-mapping/CMakeLists.txt +@@ -20,4 +20,4 @@ target_link_libraries(clang-func-mapping + ) + + install(TARGETS clang-func-mapping +- RUNTIME DESTINATION bin) ++ RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) +diff --git a/tools/clang-offload-bundler/CMakeLists.txt b/tools/clang-offload-bundler/CMakeLists.txt +index 8718015be76a..7a038f39622e 100644 +--- a/tools/clang-offload-bundler/CMakeLists.txt ++++ b/tools/clang-offload-bundler/CMakeLists.txt +@@ -22,4 +22,4 @@ target_link_libraries(clang-offload-bundler + ${CLANG_OFFLOAD_BUNDLER_LIB_DEPS} + ) + +-install(TARGETS clang-offload-bundler RUNTIME DESTINATION bin) ++install(TARGETS clang-offload-bundler RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) +diff --git a/tools/clang-rename/CMakeLists.txt b/tools/clang-rename/CMakeLists.txt +index 3b3ab1540a80..9aca9ba4a2cf 100644 +--- a/tools/clang-rename/CMakeLists.txt ++++ b/tools/clang-rename/CMakeLists.txt +@@ -18,8 +18,8 @@ target_link_libraries(clang-rename + ) + + install(PROGRAMS clang-rename.py +- DESTINATION share/clang ++ DESTINATION ${CMAKE_INSTALL_DATADIR}/clang + COMPONENT clang-rename) + install(PROGRAMS clang-rename.el +- DESTINATION share/clang ++ DESTINATION ${CMAKE_INSTALL_DATADIR}/clang + COMPONENT clang-rename) +diff --git a/tools/diagtool/CMakeLists.txt b/tools/diagtool/CMakeLists.txt +index 96d1c390249c..41c762b37b76 100644 +--- a/tools/diagtool/CMakeLists.txt ++++ b/tools/diagtool/CMakeLists.txt +@@ -21,7 +21,7 @@ target_link_libraries(diagtool + if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY) + install(TARGETS diagtool + COMPONENT diagtool +- RUNTIME DESTINATION bin) ++ RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}) + + if (NOT CMAKE_CONFIGURATION_TYPES) + add_llvm_install_targets(install-diagtool +diff --git a/tools/libclang/CMakeLists.txt b/tools/libclang/CMakeLists.txt +index e539c8308e75..4e1fbccea35d 100644 +--- a/tools/libclang/CMakeLists.txt ++++ b/tools/libclang/CMakeLists.txt +@@ -130,7 +130,7 @@ endif() + if(INTERNAL_INSTALL_PREFIX) + set(LIBCLANG_HEADERS_INSTALL_DESTINATION "${INTERNAL_INSTALL_PREFIX}/include") + else() +- set(LIBCLANG_HEADERS_INSTALL_DESTINATION include) ++ set(LIBCLANG_HEADERS_INSTALL_DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}) + endif() + + install(DIRECTORY ../../include/clang-c +diff --git a/tools/scan-build/CMakeLists.txt b/tools/scan-build/CMakeLists.txt +index 380379300b09..adfd58ed5f7d 100644 +--- a/tools/scan-build/CMakeLists.txt ++++ b/tools/scan-build/CMakeLists.txt +@@ -41,7 +41,7 @@ if(CLANG_INSTALL_SCANBUILD) + ${CMAKE_BINARY_DIR}/bin/ + DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/bin/${BinFile}) + list(APPEND Depends ${CMAKE_BINARY_DIR}/bin/${BinFile}) +- install(PROGRAMS bin/${BinFile} DESTINATION bin) ++ install(PROGRAMS bin/${BinFile} DESTINATION ${CMAKE_INSTALL_BINDIR}) + endforeach() + + foreach(LibexecFile ${LibexecFiles}) +@@ -53,7 +53,7 @@ if(CLANG_INSTALL_SCANBUILD) + ${CMAKE_BINARY_DIR}/libexec/ + DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/libexec/${LibexecFile}) + list(APPEND Depends ${CMAKE_BINARY_DIR}/libexec/${LibexecFile}) +- install(PROGRAMS libexec/${LibexecFile} DESTINATION libexec) ++ install(PROGRAMS libexec/${LibexecFile} DESTINATION ${CMAKE_INSTALL_LIBEXECDIR}) + endforeach() + + foreach(ManPage ${ManPages}) +@@ -77,7 +77,7 @@ if(CLANG_INSTALL_SCANBUILD) + ${CMAKE_BINARY_DIR}/share/scan-build/ + DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/share/scan-build/${ShareFile}) + list(APPEND Depends ${CMAKE_BINARY_DIR}/share/scan-build/${ShareFile}) +- install(FILES share/scan-build/${ShareFile} DESTINATION share/scan-build) ++ install(FILES share/scan-build/${ShareFile} DESTINATION ${CMAKE_INSTALL_DATADIR}/scan-build) + endforeach() + + add_custom_target(scan-build ALL DEPENDS ${Depends}) +diff --git a/tools/scan-view/CMakeLists.txt b/tools/scan-view/CMakeLists.txt +index b305ca562a72..554bcb379061 100644 +--- a/tools/scan-view/CMakeLists.txt ++++ b/tools/scan-view/CMakeLists.txt +@@ -21,7 +21,7 @@ if(CLANG_INSTALL_SCANVIEW) + ${CMAKE_BINARY_DIR}/bin/ + DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/bin/${BinFile}) + list(APPEND Depends ${CMAKE_BINARY_DIR}/bin/${BinFile}) +- install(PROGRAMS bin/${BinFile} DESTINATION bin) ++ install(PROGRAMS bin/${BinFile} DESTINATION ${CMAKE_INSTALL_BINDIR}) + endforeach() + + foreach(ShareFile ${ShareFiles}) +@@ -33,7 +33,7 @@ if(CLANG_INSTALL_SCANVIEW) + ${CMAKE_BINARY_DIR}/share/scan-view/ + DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/share/${ShareFile}) + list(APPEND Depends ${CMAKE_BINARY_DIR}/share/scan-view/${ShareFile}) +- install(FILES share/${ShareFile} DESTINATION share/scan-view) ++ install(FILES share/${ShareFile} DESTINATION ${CMAKE_INSTALL_DATADIR}/scan-view) + endforeach() + + add_custom_target(scan-view ALL DEPENDS ${Depends}) +diff --git a/utils/hmaptool/CMakeLists.txt b/utils/hmaptool/CMakeLists.txt +index 5573009d343a..24b3a90f233f 100644 +--- a/utils/hmaptool/CMakeLists.txt ++++ b/utils/hmaptool/CMakeLists.txt +@@ -9,7 +9,7 @@ add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin/${CLANG_HM + DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${CLANG_HMAPTOOL}) + + list(APPEND Depends ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin/${CLANG_HMAPTOOL}) +-install(PROGRAMS ${CLANG_HMAPTOOL} DESTINATION bin) ++install(PROGRAMS ${CLANG_HMAPTOOL} DESTINATION ${CMAKE_INSTALL_BINDIR}) + + add_custom_target(hmaptool ALL DEPENDS ${Depends}) + set_target_properties(hmaptool PROPERTIES FOLDER "Utils") diff --git a/pkgs/development/compilers/llvm/7/clang/unwindlib.patch b/pkgs/development/compilers/llvm/7/clang/unwindlib.patch new file mode 100644 index 00000000000..59a092d7c70 --- /dev/null +++ b/pkgs/development/compilers/llvm/7/clang/unwindlib.patch @@ -0,0 +1,227 @@ +commit a5cacb5ba7f1f18e7bb6f6709e42683eeb7e6470 +Author: Sterling Augustine <saugustine@google.com> +Date: Tue Mar 19 20:01:59 2019 +0000 + + Add --unwindlib=[libgcc|compiler-rt] to parallel --rtlib= [take 2] + + "clang++ hello.cc --rtlib=compiler-rt" + + now can works without specifying additional unwind or exception + handling libraries. + + This reworked version of the feature no longer modifies today's default + unwind library for compiler-rt: which is nothing. Rather, a user + can specify -DCLANG_DEFAULT_UNWINDLIB=libunwind when configuring + the compiler. + + This should address the issues from the previous version. + + Update tests for new --unwindlib semantics. + + Differential Revision: https://reviews.llvm.org/D59109 + + llvm-svn: 356508 + +diff --git clang/CMakeLists.txt clang/CMakeLists.txt +index 52b881939499..2c3fb62f6e73 100644 +--- clang/CMakeLists.txt ++++ clang/CMakeLists.txt +@@ -244,6 +244,24 @@ if (NOT(CLANG_DEFAULT_RTLIB STREQUAL "" OR + "Default runtime library to use (\"libgcc\" or \"compiler-rt\", empty for platform default)" FORCE) + endif() + ++set(CLANG_DEFAULT_UNWINDLIB "" CACHE STRING ++ "Default unwind library to use (\"none\" \"libgcc\" or \"libunwind\", empty to match runtime library.)") ++if (CLANG_DEFAULT_UNWINDLIB STREQUAL "") ++ if (CLANG_DEFAULT_RTLIB STREQUAL "libgcc") ++ set (CLANG_DEFAULT_UNWINDLIB "libgcc" CACHE STRING "" FORCE) ++ elseif (CLANG_DEFAULT_RTLIBS STREQUAL "libunwind") ++ set (CLANG_DEFAULT_UNWINDLIB "none" CACHE STRING "" FORCE) ++ endif() ++endif() ++ ++if (NOT(CLANG_DEFAULT_UNWINDLIB STREQUAL "none" OR ++ CLANG_DEFAULT_UNWINDLIB STREQUAL "libgcc" OR ++ CLANG_DEFAULT_UNWINDLIB STREQUAL "libunwind")) ++ message(WARNING "Resetting default unwindlib to use platform default") ++ set(CLANG_DEFAULT_UNWINDLIB "" CACHE STRING ++ "Default unwind library to use (\"none\" \"libgcc\" or \"libunwind\", empty for none)" FORCE) ++endif() ++ + set(CLANG_DEFAULT_OBJCOPY "objcopy" CACHE STRING + "Default objcopy executable to use.") + +diff --git clang/include/clang/Basic/DiagnosticDriverKinds.td clang/include/clang/Basic/DiagnosticDriverKinds.td +index 7f75f45c6578..7e1bb33b5cef 100644 +--- clang/include/clang/Basic/DiagnosticDriverKinds.td ++++ clang/include/clang/Basic/DiagnosticDriverKinds.td +@@ -52,6 +52,10 @@ def err_drv_invalid_rtlib_name : Error< + "invalid runtime library name in argument '%0'">; + def err_drv_unsupported_rtlib_for_platform : Error< + "unsupported runtime library '%0' for platform '%1'">; ++def err_drv_invalid_unwindlib_name : Error< ++ "invalid unwind library name in argument '%0'">; ++def err_drv_incompatible_unwindlib : Error< ++ "--rtlib=libgcc requires --unwindlib=libgcc">; + def err_drv_invalid_stdlib_name : Error< + "invalid library name in argument '%0'">; + def err_drv_invalid_output_with_multiple_archs : Error< +diff --git clang/include/clang/Config/config.h.cmake clang/include/clang/Config/config.h.cmake +index 1d624450b9d9..2d4cb747e87e 100644 +--- clang/include/clang/Config/config.h.cmake ++++ clang/include/clang/Config/config.h.cmake +@@ -23,6 +23,9 @@ + /* Default runtime library to use. */ + #define CLANG_DEFAULT_RTLIB "${CLANG_DEFAULT_RTLIB}" + ++/* Default unwind library to use. */ ++#define CLANG_DEFAULT_UNWINDLIB "${CLANG_DEFAULT_UNWINDLIB}" ++ + /* Default objcopy to use */ + #define CLANG_DEFAULT_OBJCOPY "${CLANG_DEFAULT_OBJCOPY}" + +diff --git clang/include/clang/Driver/Options.td clang/include/clang/Driver/Options.td +index 601aa8744967..0e74a2d36dea 100644 +--- clang/include/clang/Driver/Options.td ++++ clang/include/clang/Driver/Options.td +@@ -2428,6 +2428,8 @@ def std_EQ : Joined<["-", "--"], "std=">, Flags<[CC1Option]>, + }]>; + def stdlib_EQ : Joined<["-", "--"], "stdlib=">, Flags<[CC1Option]>, + HelpText<"C++ standard library to use">, Values<"libc++,libstdc++,platform">; ++def unwindlib_EQ : Joined<["-", "--"], "unwindlib=">, Flags<[CC1Option]>, ++ HelpText<"Unwind library to use">, Values<"libgcc,unwindlib,platform">; + def sub__library : JoinedOrSeparate<["-"], "sub_library">; + def sub__umbrella : JoinedOrSeparate<["-"], "sub_umbrella">; + def system_header_prefix : Joined<["--"], "system-header-prefix=">, +diff --git clang/include/clang/Driver/ToolChain.h clang/include/clang/Driver/ToolChain.h +index 2f9c2c190e32..d5b131bcf112 100644 +--- clang/include/clang/Driver/ToolChain.h ++++ clang/include/clang/Driver/ToolChain.h +@@ -99,6 +99,12 @@ public: + RLT_Libgcc + }; + ++ enum UnwindLibType { ++ UNW_None, ++ UNW_CompilerRT, ++ UNW_Libgcc ++ }; ++ + enum RTTIMode { + RM_Enabled, + RM_Disabled, +@@ -352,6 +358,10 @@ public: + return ToolChain::CST_Libstdcxx; + } + ++ virtual UnwindLibType GetDefaultUnwindLibType() const { ++ return ToolChain::UNW_None; ++ } ++ + virtual std::string getCompilerRTPath() const; + + virtual std::string getCompilerRT(const llvm::opt::ArgList &Args, +@@ -484,6 +494,10 @@ public: + // given compilation arguments. + virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const; + ++ // GetUnwindLibType - Determine the unwind library type to use with the ++ // given compilation arguments. ++ virtual UnwindLibType GetUnwindLibType(const llvm::opt::ArgList &Args) const; ++ + /// AddClangCXXStdlibIncludeArgs - Add the clang -cc1 level arguments to set + /// the include paths to use for the given C++ standard library type. + virtual void +diff --git clang/lib/Driver/ToolChain.cpp clang/lib/Driver/ToolChain.cpp +index cf3db34688df..d980dd5d23fb 100644 +--- clang/lib/Driver/ToolChain.cpp ++++ clang/lib/Driver/ToolChain.cpp +@@ -665,6 +665,33 @@ ToolChain::RuntimeLibType ToolChain::GetRuntimeLibType( + return GetDefaultRuntimeLibType(); + } + ++ToolChain::UnwindLibType ToolChain::GetUnwindLibType( ++ const ArgList &Args) const { ++ const Arg *A = Args.getLastArg(options::OPT_unwindlib_EQ); ++ StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_UNWINDLIB; ++ ++ if (LibName == "none") ++ return ToolChain::UNW_None; ++ else if (LibName == "platform" || LibName == "") { ++ ToolChain::RuntimeLibType RtLibType = GetRuntimeLibType(Args); ++ if (RtLibType == ToolChain::RLT_CompilerRT) ++ return ToolChain::UNW_None; ++ else if (RtLibType == ToolChain::RLT_Libgcc) ++ return ToolChain::UNW_Libgcc; ++ } else if (LibName == "libunwind") { ++ if (GetRuntimeLibType(Args) == RLT_Libgcc) ++ getDriver().Diag(diag::err_drv_incompatible_unwindlib); ++ return ToolChain::UNW_CompilerRT; ++ } else if (LibName == "libgcc") ++ return ToolChain::UNW_Libgcc; ++ ++ if (A) ++ getDriver().Diag(diag::err_drv_invalid_unwindlib_name) ++ << A->getAsString(Args); ++ ++ return GetDefaultUnwindLibType(); ++} ++ + ToolChain::CXXStdlibType ToolChain::GetCXXStdlibType(const ArgList &Args) const{ + const Arg *A = Args.getLastArg(options::OPT_stdlib_EQ); + StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_CXX_STDLIB; +diff --git clang/test/Driver/compiler-rt-unwind.c clang/test/Driver/compiler-rt-unwind.c +new file mode 100644 +index 000000000000..00024dfa7ed3 +--- /dev/null ++++ clang/test/Driver/compiler-rt-unwind.c +@@ -0,0 +1,49 @@ ++// General tests that the driver handles combinations of --rtlib=XXX and ++// --unwindlib=XXX properly. ++// ++// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \ ++// RUN: --target=x86_64-unknown-linux \ ++// RUN: --gcc-toolchain="" \ ++// RUN: | FileCheck --check-prefix=RTLIB-EMPTY %s ++// RTLIB-EMPTY: "{{.*}}lgcc" ++// RTLIB-EMPTY: "{{.*}}-lgcc_s" ++// ++// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \ ++// RUN: --target=x86_64-unknown-linux -rtlib=libgcc \ ++// RUN: --gcc-toolchain="" \ ++// RUN: | FileCheck --check-prefix=RTLIB-GCC %s ++// RTLIB-GCC: "{{.*}}lgcc" ++// RTLIB-GCC: "{{.*}}lgcc_s" ++// ++// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \ ++// RUN: --target=x86_64-unknown-linux -rtlib=libgcc --unwindlib=libunwind \ ++// RUN: --gcc-toolchain="" \ ++// RUN: | FileCheck --check-prefix=RTLIB-GCC-UNWINDLIB-COMPILER-RT %s ++// RTLIB-GCC-UNWINDLIB-COMPILER-RT: "{{.*}}lgcc" ++// RTLIB-GCC-UNWINDLIB-COMPILER-RT: "{{.*}}lunwind" ++// ++// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \ ++// RUN: --target=x86_64-unknown-linux -rtlib=compiler-rt \ ++// RUN: --gcc-toolchain="" \ ++// RUN: | FileCheck --check-prefix=RTLIB-COMPILER-RT %s ++// RTLIB-COMPILER-RT: "{{.*}}libclang_rt.builtins-x86_64.a" ++// ++// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \ ++// RUN: --target=x86_64-unknown-linux -rtlib=compiler-rt --unwindlib=libgcc \ ++// RUN: --gcc-toolchain="" \ ++// RUN: | FileCheck --check-prefix=RTLIB-COMPILER-RT-UNWINDLIB-GCC %s ++// RTLIB-COMPILER-RT-UNWINDLIB-GCC: "{{.*}}libclang_rt.builtins-x86_64.a" ++// RTLIB-COMPILER-RT-UNWINDLIB-GCC: "{{.*}}lgcc_s" ++// ++// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \ ++// RUN: --target=x86_64-unknown-linux -rtlib=compiler-rt --unwindlib=libgcc \ ++// RUN: -static --gcc-toolchain="" \ ++// RUN: | FileCheck --check-prefix=RTLIB-COMPILER-RT-UNWINDLIB-GCC-STATIC %s ++// RTLIB-COMPILER-RT-UNWINDLIB-GCC-STATIC: "{{.*}}libclang_rt.builtins-x86_64.a" ++// RTLIB-COMPILER-RT-UNWINDLIB-GCC-STATIC: "{{.*}}lgcc_eh" ++// ++// RUN: not %clang -no-canonical-prefixes %s -o %t.o 2> %t.err \ ++// RUN: --target=x86_64-unknown-linux -rtlib=libgcc --unwindlib=libunwind \ ++// RUN: --gcc-toolchain="" \ ++// RUN: FileCheck --input-file=%t.err --check-prefix=RTLIB-GCC-UNWINDLIB-COMPILER_RT %s ++// RTLIB-GCC-UNWINDLIB-COMPILER_RT: "{{[.|\\\n]*}}--rtlib=libgcc requires --unwindlib=libgcc" |