Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 1 | # See www/CMake.html for instructions on how to build libcxx with CMake. |
| 2 | |
| 3 | #=============================================================================== |
| 4 | # Setup Project |
| 5 | #=============================================================================== |
Chris Bieneman | cad86ff | 2016-05-31 20:21:52 +0000 | [diff] [blame] | 6 | cmake_minimum_required(VERSION 3.4.3) |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 7 | |
Eric Fiselier | e9d4b23 | 2015-01-26 21:56:45 +0000 | [diff] [blame] | 8 | if(POLICY CMP0042) |
| 9 | cmake_policy(SET CMP0042 NEW) # Set MACOSX_RPATH=YES by default |
| 10 | endif() |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 11 | if(POLICY CMP0022) |
| 12 | cmake_policy(SET CMP0022 NEW) # Required when interacting with LLVM and Clang |
| 13 | endif() |
| 14 | |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 15 | # Add path for custom modules |
| 16 | set(CMAKE_MODULE_PATH |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 17 | "${CMAKE_CURRENT_SOURCE_DIR}/cmake" |
| 18 | "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" |
Eric Fiselier | ce5695f | 2015-12-30 03:39:03 +0000 | [diff] [blame] | 19 | ${CMAKE_MODULE_PATH} |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 20 | ) |
| 21 | |
Eric Fiselier | 5e000c6 | 2016-11-14 02:43:12 +0000 | [diff] [blame] | 22 | if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) |
Saleem Abdulrasool | 7adfa03 | 2016-02-08 03:50:18 +0000 | [diff] [blame] | 23 | project(libcxx CXX C) |
| 24 | |
| 25 | set(PACKAGE_NAME libcxx) |
Eugene Zelenko | 96f1017 | 2016-08-08 18:01:50 +0000 | [diff] [blame] | 26 | set(PACKAGE_VERSION 4.0.0svn) |
Saleem Abdulrasool | 7adfa03 | 2016-02-08 03:50:18 +0000 | [diff] [blame] | 27 | set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}") |
| 28 | set(PACKAGE_BUGREPORT "llvm-bugs@lists.llvm.org") |
Eric Fiselier | 5e000c6 | 2016-11-14 02:43:12 +0000 | [diff] [blame] | 29 | |
| 30 | # Find the LLVM sources and simulate LLVM CMake options. |
| 31 | include(HandleOutOfTreeLLVM) |
Eugene Zelenko | 96f1017 | 2016-08-08 18:01:50 +0000 | [diff] [blame] | 32 | endif() |
Saleem Abdulrasool | 7adfa03 | 2016-02-08 03:50:18 +0000 | [diff] [blame] | 33 | |
Petr Hosek | 3508e7a | 2017-01-16 00:33:07 +0000 | [diff] [blame] | 34 | if (LIBCXX_STANDALONE_BUILD) |
| 35 | include(FindPythonInterp) |
| 36 | if( NOT PYTHONINTERP_FOUND ) |
| 37 | message(WARNING "Failed to find python interpreter. " |
| 38 | "The libc++ test suite will be disabled.") |
| 39 | set(LLVM_INCLUDE_TESTS OFF) |
| 40 | endif() |
| 41 | endif() |
| 42 | |
Saleem Abdulrasool | 7adfa03 | 2016-02-08 03:50:18 +0000 | [diff] [blame] | 43 | # Require out of source build. |
| 44 | include(MacroEnsureOutOfSourceBuild) |
| 45 | MACRO_ENSURE_OUT_OF_SOURCE_BUILD( |
| 46 | "${PROJECT_NAME} requires an out of source build. Please create a separate |
| 47 | build directory and run 'cmake /path/to/${PROJECT_NAME} [options]' there." |
| 48 | ) |
| 49 | |
Eric Fiselier | fdd3c91 | 2017-01-14 06:06:47 +0000 | [diff] [blame] | 50 | if (MSVC) |
| 51 | set(LIBCXX_TARGETING_MSVC ON) |
| 52 | else() |
| 53 | set(LIBCXX_TARGETING_MSVC OFF) |
| 54 | endif() |
| 55 | |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 56 | #=============================================================================== |
| 57 | # Setup CMake Options |
| 58 | #=============================================================================== |
Eric Fiselier | 01609af | 2016-09-07 01:15:10 +0000 | [diff] [blame] | 59 | include(CMakeDependentOption) |
Eric Fiselier | c51e0d2 | 2017-03-11 03:24:18 +0000 | [diff] [blame] | 60 | include(HandleCompilerRT) |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 61 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 62 | # Basic options --------------------------------------------------------------- |
Eric Fiselier | b89eba0 | 2017-02-04 23:22:28 +0000 | [diff] [blame] | 63 | option(LIBCXX_ENABLE_ASSERTIONS "Enable assertions independent of build mode." OFF) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 64 | option(LIBCXX_ENABLE_SHARED "Build libc++ as a shared library." ON) |
Petr Hosek | b640da0 | 2016-08-08 22:57:25 +0000 | [diff] [blame] | 65 | option(LIBCXX_ENABLE_STATIC "Build libc++ as a static library." ON) |
Eric Fiselier | 5e4698c | 2016-05-03 21:30:18 +0000 | [diff] [blame] | 66 | option(LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY "Build libc++experimental.a" ON) |
Eric Fiselier | 6e9a694 | 2016-06-17 19:46:40 +0000 | [diff] [blame] | 67 | option(LIBCXX_ENABLE_FILESYSTEM |
| 68 | "Build filesystem as part of libc++experimental.a" ${LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY}) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 69 | option(LIBCXX_INCLUDE_TESTS "Build the libc++ tests." ${LLVM_INCLUDE_TESTS}) |
Eric Fiselier | 2d2f0c0 | 2016-10-30 22:53:00 +0000 | [diff] [blame] | 70 | |
Eric Fiselier | 2d2f0c0 | 2016-10-30 22:53:00 +0000 | [diff] [blame] | 71 | # Benchmark options ----------------------------------------------------------- |
Eric Fiselier | 0a799bd | 2016-08-29 19:50:49 +0000 | [diff] [blame] | 72 | option(LIBCXX_INCLUDE_BENCHMARKS "Build the libc++ benchmarks and their dependancies" ON) |
Eric Fiselier | 2d2f0c0 | 2016-10-30 22:53:00 +0000 | [diff] [blame] | 73 | set(LIBCXX_BENCHMARK_NATIVE_STDLIB "" CACHE STRING |
| 74 | "Build the benchmarks against the specified native STL. |
| 75 | The value must be one of libc++/libstdc++") |
| 76 | set(LIBCXX_BENCHMARK_NATIVE_GCC_TOOLCHAIN "" CACHE STRING |
| 77 | "Use alternate GCC toolchain when building the native benchmarks") |
| 78 | |
| 79 | if (LIBCXX_BENCHMARK_NATIVE_STDLIB) |
| 80 | if (NOT (LIBCXX_BENCHMARK_NATIVE_STDLIB STREQUAL "libc++" |
| 81 | OR LIBCXX_BENCHMARK_NATIVE_STDLIB STREQUAL "libstdc++")) |
| 82 | message(FATAL_ERROR "Invalid value for LIBCXX_BENCHMARK_NATIVE_STDLIB: " |
| 83 | "'${LIBCXX_BENCHMARK_NATIVE_STDLIB}'") |
| 84 | endif() |
| 85 | endif() |
| 86 | |
Eric Fiselier | b9f425a | 2015-08-22 19:40:49 +0000 | [diff] [blame] | 87 | option(LIBCXX_INCLUDE_DOCS "Build the libc++ documentation." ${LLVM_INCLUDE_DOCS}) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 88 | set(LIBCXX_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}" CACHE STRING |
| 89 | "Define suffix of library directory name (32/64)") |
| 90 | option(LIBCXX_INSTALL_HEADERS "Install the libc++ headers." ON) |
Eric Fiselier | 961269d | 2015-08-26 20:18:21 +0000 | [diff] [blame] | 91 | option(LIBCXX_INSTALL_LIBRARY "Install the libc++ library." ON) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 92 | option(LIBCXX_INSTALL_SUPPORT_HEADERS "Install libc++ support headers." ON) |
Eric Fiselier | 01609af | 2016-09-07 01:15:10 +0000 | [diff] [blame] | 93 | cmake_dependent_option(LIBCXX_INSTALL_EXPERIMENTAL_LIBRARY |
| 94 | "Install libc++experimental.a" ON |
| 95 | "LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY;LIBCXX_INSTALL_LIBRARY" OFF) |
Evgeniy Stepanov | 4f01aa8 | 2015-10-13 23:48:28 +0000 | [diff] [blame] | 96 | set(LIBCXX_ABI_VERSION 1 CACHE STRING "ABI version of libc++.") |
| 97 | option(LIBCXX_ABI_UNSTABLE "Unstable ABI of libc++." OFF) |
Saleem Abdulrasool | e146f75 | 2016-08-24 04:22:52 +0000 | [diff] [blame] | 98 | option(LIBCXX_USE_COMPILER_RT "Use compiler-rt instead of libgcc" OFF) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 99 | |
Petr Hosek | b640da0 | 2016-08-08 22:57:25 +0000 | [diff] [blame] | 100 | if (NOT LIBCXX_ENABLE_SHARED AND NOT LIBCXX_ENABLE_STATIC) |
| 101 | message(FATAL_ERROR "libc++ must be built as either a shared or static library.") |
| 102 | endif() |
| 103 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 104 | # ABI Library options --------------------------------------------------------- |
Eric Fiselier | cfc5515 | 2017-01-03 01:18:48 +0000 | [diff] [blame] | 105 | set(LIBCXX_CXX_ABI "default" CACHE STRING |
| 106 | "Specify C++ ABI library to use.") |
Eric Fiselier | bde2871 | 2017-01-16 20:47:35 +0000 | [diff] [blame] | 107 | set(CXXABIS none default libcxxabi libcxxrt libstdc++ libsupc++ vcruntime) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 108 | set_property(CACHE LIBCXX_CXX_ABI PROPERTY STRINGS ;${CXXABIS}) |
| 109 | |
Eric Fiselier | 1cf5a81 | 2015-10-22 20:54:27 +0000 | [diff] [blame] | 110 | # Setup the default options if LIBCXX_CXX_ABI is not specified. |
Eric Fiselier | cfc5515 | 2017-01-03 01:18:48 +0000 | [diff] [blame] | 111 | if (LIBCXX_CXX_ABI STREQUAL "default") |
Petr Hosek | d842fed | 2016-11-09 03:22:28 +0000 | [diff] [blame] | 112 | find_path( |
| 113 | LIBCXX_LIBCXXABI_INCLUDES_INTERNAL |
| 114 | cxxabi.h |
| 115 | PATHS ${LLVM_MAIN_SRC_DIR}/projects/libcxxabi/include |
| 116 | ${LLVM_MAIN_SRC_DIR}/runtimes/libcxxabi/include |
| 117 | NO_DEFAULT_PATH |
| 118 | ) |
Petr Hosek | 6948dbe | 2017-01-16 00:33:11 +0000 | [diff] [blame] | 119 | if ((NOT LIBCXX_STANDALONE_BUILD OR HAVE_LIBCXXABI) AND |
| 120 | IS_DIRECTORY "${LIBCXX_LIBCXXABI_INCLUDES_INTERNAL}") |
Eric Fiselier | 1cf5a81 | 2015-10-22 20:54:27 +0000 | [diff] [blame] | 121 | set(LIBCXX_CXX_ABI_LIBNAME "libcxxabi") |
Petr Hosek | d842fed | 2016-11-09 03:22:28 +0000 | [diff] [blame] | 122 | set(LIBCXX_CXX_ABI_INCLUDE_PATHS "${LIBCXX_LIBCXXABI_INCLUDES_INTERNAL}") |
Eric Fiselier | 1cf5a81 | 2015-10-22 20:54:27 +0000 | [diff] [blame] | 123 | set(LIBCXX_CXX_ABI_INTREE 1) |
Eugene Zelenko | 96f1017 | 2016-08-08 18:01:50 +0000 | [diff] [blame] | 124 | else() |
Eric Fiselier | bde2871 | 2017-01-16 20:47:35 +0000 | [diff] [blame] | 125 | if (LIBCXX_TARGETING_MSVC) |
Eric Fiselier | bab7b41 | 2017-01-06 23:59:52 +0000 | [diff] [blame] | 126 | # FIXME: Figure out how to configure the ABI library on Windows. |
Eric Fiselier | bde2871 | 2017-01-16 20:47:35 +0000 | [diff] [blame] | 127 | set(LIBCXX_CXX_ABI_LIBNAME "vcruntime") |
Eric Fiselier | 1edf316 | 2017-02-10 08:57:35 +0000 | [diff] [blame] | 128 | elseif(APPLE) |
| 129 | set(LIBCXX_CXX_ABI_LIBNAME "libcxxabi") |
| 130 | set(LIBCXX_CXX_ABI_SYSTEM 1) |
Eric Fiselier | bab7b41 | 2017-01-06 23:59:52 +0000 | [diff] [blame] | 131 | else() |
| 132 | set(LIBCXX_CXX_ABI_LIBNAME "default") |
| 133 | endif() |
Eugene Zelenko | 96f1017 | 2016-08-08 18:01:50 +0000 | [diff] [blame] | 134 | endif() |
| 135 | else() |
Eric Fiselier | 1cf5a81 | 2015-10-22 20:54:27 +0000 | [diff] [blame] | 136 | set(LIBCXX_CXX_ABI_LIBNAME "${LIBCXX_CXX_ABI}") |
Eugene Zelenko | 96f1017 | 2016-08-08 18:01:50 +0000 | [diff] [blame] | 137 | endif() |
Eric Fiselier | 1cf5a81 | 2015-10-22 20:54:27 +0000 | [diff] [blame] | 138 | |
Eric Fiselier | bb856cc | 2015-10-15 22:41:51 +0000 | [diff] [blame] | 139 | # Use a static copy of the ABI library when linking libc++. This option |
| 140 | # cannot be used with LIBCXX_ENABLE_ABI_LINKER_SCRIPT. |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 141 | option(LIBCXX_ENABLE_STATIC_ABI_LIBRARY "Statically link the ABI library" OFF) |
| 142 | |
Eric Fiselier | 8cbf020 | 2015-10-14 19:54:03 +0000 | [diff] [blame] | 143 | # Generate and install a linker script inplace of libc++.so. The linker script |
Eric Fiselier | bb856cc | 2015-10-15 22:41:51 +0000 | [diff] [blame] | 144 | # will link libc++ to the correct ABI library. This option is on by default |
| 145 | # On UNIX platforms other than Apple unless 'LIBCXX_ENABLE_STATIC_ABI_LIBRARY' |
Eric Fiselier | 5d5b59b | 2015-10-22 20:50:07 +0000 | [diff] [blame] | 146 | # is on. This option is also disabled when the ABI library is not specified |
| 147 | # or is specified to be "none". |
Eric Fiselier | bb856cc | 2015-10-15 22:41:51 +0000 | [diff] [blame] | 148 | set(ENABLE_LINKER_SCRIPT_DEFAULT_VALUE OFF) |
Eric Fiselier | 1d3716a | 2015-10-15 23:04:54 +0000 | [diff] [blame] | 149 | if (LLVM_HAVE_LINK_VERSION_SCRIPT AND NOT LIBCXX_ENABLE_STATIC_ABI_LIBRARY |
Eric Fiselier | 1cf5a81 | 2015-10-22 20:54:27 +0000 | [diff] [blame] | 150 | AND NOT LIBCXX_CXX_ABI_LIBNAME STREQUAL "none" |
Eric Fiselier | cfc5515 | 2017-01-03 01:18:48 +0000 | [diff] [blame] | 151 | AND NOT LIBCXX_CXX_ABI_LIBNAME STREQUAL "default" |
Asiri Rathnayake | 10a6829 | 2016-05-14 23:58:11 +0000 | [diff] [blame] | 152 | AND PYTHONINTERP_FOUND |
| 153 | AND LIBCXX_ENABLE_SHARED) |
Eric Fiselier | bb856cc | 2015-10-15 22:41:51 +0000 | [diff] [blame] | 154 | set(ENABLE_LINKER_SCRIPT_DEFAULT_VALUE ON) |
| 155 | endif() |
| 156 | |
Eric Fiselier | 8cbf020 | 2015-10-14 19:54:03 +0000 | [diff] [blame] | 157 | option(LIBCXX_ENABLE_ABI_LINKER_SCRIPT |
Eric Fiselier | bb856cc | 2015-10-15 22:41:51 +0000 | [diff] [blame] | 158 | "Use and install a linker script for the given ABI library" |
Eric Fiselier | 1d3716a | 2015-10-15 23:04:54 +0000 | [diff] [blame] | 159 | ${ENABLE_LINKER_SCRIPT_DEFAULT_VALUE}) |
Eric Fiselier | 8cbf020 | 2015-10-14 19:54:03 +0000 | [diff] [blame] | 160 | |
Eric Fiselier | dc69aac | 2017-03-02 19:35:33 +0000 | [diff] [blame] | 161 | set(ENABLE_NEW_DELETE_DEFAULT ON) |
| 162 | if (LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS) |
Eric Fiselier | 0cbd39f | 2017-03-02 21:55:03 +0000 | [diff] [blame] | 163 | # FIXME: This option should default to off. Unfortunatly GCC 4.9 fails to link |
| 164 | # programs to due undefined references to new/delete in libc++abi so to work |
| 165 | # around this libc++abi currently defaults LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS |
| 166 | # to ON. Once the GCC bug has been worked around this option should be changed |
| 167 | # back to OFF. |
| 168 | set(ENABLE_NEW_DELETE_DEFAULT ON) |
Eric Fiselier | dc69aac | 2017-03-02 19:35:33 +0000 | [diff] [blame] | 169 | endif() |
| 170 | |
| 171 | option(LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS |
| 172 | "Build libc++ with definitions for operator new/delete. This option can |
| 173 | be used to disable the definitions when libc++abi is expected to provide |
| 174 | them" ${ENABLE_NEW_DELETE_DEFAULT}) |
| 175 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 176 | # Build libc++abi with libunwind. We need this option to determine whether to |
| 177 | # link with libunwind or libgcc_s while running the test cases. |
| 178 | option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder." OFF) |
Petr Hosek | f4699a5 | 2017-02-09 02:19:43 +0000 | [diff] [blame] | 179 | option(LIBCXXABI_ENABLE_STATIC_UNWINDER "Statically link the LLVM unwinder." OFF) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 180 | |
| 181 | # Target options -------------------------------------------------------------- |
| 182 | option(LIBCXX_BUILD_32_BITS "Build 32 bit libc++." ${LLVM_BUILD_32_BITS}) |
| 183 | set(LIBCXX_SYSROOT "" CACHE STRING "Use alternate sysroot.") |
| 184 | set(LIBCXX_GCC_TOOLCHAIN "" CACHE STRING "Use alternate GCC toolchain.") |
| 185 | |
| 186 | # Feature options ------------------------------------------------------------- |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 187 | option(LIBCXX_ENABLE_EXCEPTIONS "Use exceptions." ON) |
| 188 | option(LIBCXX_ENABLE_RTTI "Use run time type information." ON) |
Ed Schouten | b33ae5b | 2015-03-12 15:44:39 +0000 | [diff] [blame] | 189 | option(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE "Build libc++ with support for the global filesystem namespace." ON) |
Ed Schouten | abd06b4 | 2015-03-26 14:35:46 +0000 | [diff] [blame] | 190 | option(LIBCXX_ENABLE_STDIN "Build libc++ with support for stdin/std::cin." ON) |
| 191 | option(LIBCXX_ENABLE_STDOUT "Build libc++ with support for stdout/std::cout." ON) |
Eric Fiselier | 7330ed3 | 2014-12-06 21:02:58 +0000 | [diff] [blame] | 192 | option(LIBCXX_ENABLE_THREADS "Build libc++ with support for threads." ON) |
Ed Schouten | 323ade3 | 2015-06-24 08:44:38 +0000 | [diff] [blame] | 193 | option(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS "Build libc++ with support for thread-unsafe C functions" ON) |
Eric Fiselier | 7330ed3 | 2014-12-06 21:02:58 +0000 | [diff] [blame] | 194 | option(LIBCXX_ENABLE_MONOTONIC_CLOCK |
| 195 | "Build libc++ with support for a monotonic clock. |
Jonathan Roelofs | 5e91fa1 | 2015-08-24 21:20:07 +0000 | [diff] [blame] | 196 | This option may only be set to OFF when LIBCXX_ENABLE_THREADS=OFF." ON) |
Vasileios Kalintiris | 579b42b | 2015-11-09 10:21:04 +0000 | [diff] [blame] | 197 | option(LIBCXX_HAS_MUSL_LIBC "Build libc++ with support for the Musl C library" OFF) |
Ben Craig | 5163e46 | 2016-05-25 17:40:09 +0000 | [diff] [blame] | 198 | option(LIBCXX_HAS_PTHREAD_API "Ignore auto-detection and force use of pthread API" OFF) |
Asiri Rathnayake | 040945b | 2016-09-11 21:46:40 +0000 | [diff] [blame] | 199 | option(LIBCXX_HAS_EXTERNAL_THREAD_API |
| 200 | "Build libc++ with an externalized threading API. |
| 201 | This option may only be set to ON when LIBCXX_ENABLE_THREADS=ON." OFF) |
Eric Fiselier | 66134e8 | 2017-01-06 20:05:40 +0000 | [diff] [blame] | 202 | option(LIBCXX_BUILD_EXTERNAL_THREAD_LIBRARY |
| 203 | "Build libc++ with an externalized threading library. |
| 204 | This option may only be set to ON when LIBCXX_ENABLE_THREADS=ON" OFF) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 205 | |
| 206 | # Misc options ---------------------------------------------------------------- |
Eric Fiselier | cb23a49 | 2015-10-10 03:34:52 +0000 | [diff] [blame] | 207 | # FIXME: Turn -pedantic back ON. It is currently off because it warns |
| 208 | # about #include_next which is used everywhere. |
| 209 | option(LIBCXX_ENABLE_PEDANTIC "Compile with pedantic enabled." OFF) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 210 | option(LIBCXX_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF) |
Saleem Abdulrasool | ab008f7 | 2016-07-12 14:39:13 +0000 | [diff] [blame] | 211 | option(LIBCXX_DISABLE_MACRO_CONFLICT_WARNINGS "Disable #warnings about conflicting macros." OFF) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 212 | |
Eric Fiselier | bf9653d | 2015-03-31 04:15:45 +0000 | [diff] [blame] | 213 | option(LIBCXX_GENERATE_COVERAGE "Enable generating code coverage." OFF) |
| 214 | set(LIBCXX_COVERAGE_LIBRARY "" CACHE STRING |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 215 | "The Profile-rt library used to build with code coverage") |
| 216 | |
Eric Fiselier | 961269d | 2015-08-26 20:18:21 +0000 | [diff] [blame] | 217 | # Don't allow a user to accidentally overwrite the system libc++ installation on Darwin. |
| 218 | # If the user specifies -DCMAKE_INSTALL_PREFIX=/usr the install rules for libc++ |
| 219 | # will not be generated and a warning will be issued. |
| 220 | option(LIBCXX_OVERRIDE_DARWIN_INSTALL "Enable overwriting darwins libc++ installation." OFF) |
| 221 | mark_as_advanced(LIBCXX_OVERRIDE_DARWIN_INSTALL) # Don't show this option by default. |
| 222 | |
| 223 | if (${CMAKE_SYSTEM_NAME} MATCHES "Darwin" AND NOT LIBCXX_OVERRIDE_DARWIN_INSTALL) |
| 224 | if ("${CMAKE_INSTALL_PREFIX}" STREQUAL "/usr") |
| 225 | message(WARNING "Disabling libc++ install rules because installation would " |
| 226 | "overwrite the systems installation. Configure with " |
| 227 | "-DLIBCXX_OVERRIDE_DARWIN_INSTALL=ON to suppress this behaviour.") |
| 228 | mark_as_advanced(CLEAR LIBCXX_OVERRIDE_DARWIN_INSTALL) # Show the override option. |
| 229 | set(LIBCXX_INSTALL_HEADERS OFF) |
| 230 | set(LIBCXX_INSTALL_LIBRARY OFF) |
| 231 | endif() |
| 232 | endif() |
| 233 | |
Eric Fiselier | 85df7a8 | 2015-12-16 23:41:05 +0000 | [diff] [blame] | 234 | set(LIBCXX_CONFIGURE_IDE_DEFAULT OFF) |
| 235 | if (XCODE OR MSVC_IDE) |
| 236 | set(LIBCXX_CONFIGURE_IDE_DEFAULT ON) |
| 237 | endif() |
| 238 | option(LIBCXX_CONFIGURE_IDE "Configure libcxx for use within an IDE" |
| 239 | ${LIBCXX_CONFIGURE_IDE_DEFAULT}) |
| 240 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 241 | #=============================================================================== |
| 242 | # Check option configurations |
| 243 | #=============================================================================== |
| 244 | |
Eric Fiselier | 6e9a694 | 2016-06-17 19:46:40 +0000 | [diff] [blame] | 245 | if (LIBCXX_ENABLE_FILESYSTEM AND NOT LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY) |
| 246 | message(FATAL_ERROR |
| 247 | "LIBCXX_ENABLE_FILESYSTEM cannot be turned on when LIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF") |
| 248 | endif() |
| 249 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 250 | # Ensure LIBCXX_ENABLE_MONOTONIC_CLOCK is set to ON only when |
| 251 | # LIBCXX_ENABLE_THREADS is on. |
| 252 | if(LIBCXX_ENABLE_THREADS AND NOT LIBCXX_ENABLE_MONOTONIC_CLOCK) |
| 253 | message(FATAL_ERROR "LIBCXX_ENABLE_MONOTONIC_CLOCK can only be set to OFF" |
| 254 | " when LIBCXX_ENABLE_THREADS is also set to OFF.") |
Eric Fiselier | 25a1516 | 2014-08-18 05:03:46 +0000 | [diff] [blame] | 255 | endif() |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 256 | |
Asiri Rathnayake | e262e7b | 2017-01-03 12:59:50 +0000 | [diff] [blame] | 257 | if(NOT LIBCXX_ENABLE_THREADS) |
| 258 | if(LIBCXX_HAS_PTHREAD_API) |
| 259 | message(FATAL_ERROR "LIBCXX_HAS_PTHREAD_API can only be set to ON" |
| 260 | " when LIBCXX_ENABLE_THREADS is also set to ON.") |
| 261 | endif() |
| 262 | if(LIBCXX_HAS_EXTERNAL_THREAD_API) |
| 263 | message(FATAL_ERROR "LIBCXX_HAS_EXTERNAL_THREAD_API can only be set to ON" |
| 264 | " when LIBCXX_ENABLE_THREADS is also set to ON.") |
| 265 | endif() |
Eric Fiselier | 66134e8 | 2017-01-06 20:05:40 +0000 | [diff] [blame] | 266 | if (LIBCXX_BUILD_EXTERNAL_THREAD_LIBRARY) |
| 267 | message(FATAL_ERROR "LIBCXX_BUILD_EXTERNAL_THREAD_LIBRARY can only be set " |
| 268 | "to ON when LIBCXX_ENABLE_THREADS is also set to ON.") |
| 269 | endif() |
| 270 | |
| 271 | endif() |
| 272 | |
Asiri Rathnayake | da39f1b | 2017-01-09 10:38:56 +0000 | [diff] [blame] | 273 | if (LIBCXX_HAS_EXTERNAL_THREAD_API) |
| 274 | if (LIBCXX_BUILD_EXTERNAL_THREAD_LIBRARY) |
| 275 | message(FATAL_ERROR "The options LIBCXX_BUILD_EXTERNAL_THREAD_LIBRARY and " |
| 276 | "LIBCXX_HAS_EXTERNAL_THREAD_API cannot both be ON at " |
| 277 | "the same time") |
| 278 | endif() |
| 279 | if (LIBCXX_HAS_PTHREAD_API) |
| 280 | message(FATAL_ERROR "The options LIBCXX_HAS_EXTERNAL_THREAD_API" |
| 281 | "and LIBCXX_HAS_PTHREAD_API cannot be both" |
| 282 | "set to ON at the same time.") |
| 283 | endif() |
Asiri Rathnayake | 040945b | 2016-09-11 21:46:40 +0000 | [diff] [blame] | 284 | endif() |
| 285 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 286 | # Ensure LLVM_USE_SANITIZER is not specified when LIBCXX_GENERATE_COVERAGE |
| 287 | # is ON. |
| 288 | if (LLVM_USE_SANITIZER AND LIBCXX_GENERATE_COVERAGE) |
| 289 | message(FATAL_ERROR "LLVM_USE_SANITIZER cannot be used with LIBCXX_GENERATE_COVERAGE") |
| 290 | endif() |
| 291 | |
| 292 | # Set LIBCXX_BUILD_32_BITS to (LIBCXX_BUILD_32_BITS OR LLVM_BUILD_32_BITS) |
| 293 | # and check that we can build with 32 bits if requested. |
| 294 | if (CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32) |
| 295 | if (LIBCXX_BUILD_32_BITS AND NOT LLVM_BUILD_32_BITS) # Don't duplicate the output from LLVM |
| 296 | message(STATUS "Building 32 bits executables and libraries.") |
| 297 | endif() |
| 298 | elseif(LIBCXX_BUILD_32_BITS) |
| 299 | message(FATAL_ERROR "LIBCXX_BUILD_32_BITS=ON is not supported on this platform.") |
| 300 | endif() |
| 301 | |
| 302 | # Check that this option is not enabled on Apple and emit a usage warning. |
Eric Fiselier | c0b166e | 2015-03-03 15:59:51 +0000 | [diff] [blame] | 303 | if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY) |
| 304 | if (APPLE) |
| 305 | message(FATAL_ERROR "LIBCXX_ENABLE_STATIC_ABI_LIBRARY is not supported on OS X") |
| 306 | else() |
| 307 | message(WARNING "LIBCXX_ENABLE_STATIC_ABI_LIBRARY is an experimental option") |
| 308 | endif() |
Eric Fiselier | 60479ea | 2016-11-18 19:53:45 +0000 | [diff] [blame] | 309 | if (LIBCXX_ENABLE_STATIC AND NOT PYTHONINTERP_FOUND) |
| 310 | message(FATAL_ERROR "LIBCXX_ENABLE_STATIC_ABI_LIBRARY requires python but it was not found.") |
| 311 | endif() |
Eric Fiselier | c0b166e | 2015-03-03 15:59:51 +0000 | [diff] [blame] | 312 | endif() |
| 313 | |
Eric Fiselier | 8cbf020 | 2015-10-14 19:54:03 +0000 | [diff] [blame] | 314 | if (LIBCXX_ENABLE_ABI_LINKER_SCRIPT) |
| 315 | if (APPLE) |
| 316 | message(FATAL_ERROR "LIBCXX_ENABLE_ABI_LINKER_SCRIPT cannot be used on APPLE targets") |
| 317 | endif() |
| 318 | if (NOT PYTHONINTERP_FOUND) |
| 319 | message(FATAL_ERROR "LIBCXX_ENABLE_ABI_LINKER_SCRIPT requires python but it was not found.") |
| 320 | endif() |
Asiri Rathnayake | 10a6829 | 2016-05-14 23:58:11 +0000 | [diff] [blame] | 321 | if (NOT LIBCXX_ENABLE_SHARED) |
| 322 | message(FATAL_ERROR "LIBCXX_ENABLE_ABI_LINKER_SCRIPT is only available for shared library builds.") |
| 323 | endif() |
Eric Fiselier | 8cbf020 | 2015-10-14 19:54:03 +0000 | [diff] [blame] | 324 | endif() |
| 325 | |
| 326 | if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY AND LIBCXX_ENABLE_ABI_LINKER_SCRIPT) |
| 327 | message(FATAL_ERROR "Conflicting options given. |
| 328 | LIBCXX_ENABLE_STATIC_ABI_LIBRARY cannot be specified with |
| 329 | LIBCXX_ENABLE_ABI_LINKER_SCRIPT") |
| 330 | endif() |
| 331 | |
Vasileios Kalintiris | 579b42b | 2015-11-09 10:21:04 +0000 | [diff] [blame] | 332 | if (LIBCXX_HAS_MUSL_LIBC AND NOT LIBCXX_INSTALL_SUPPORT_HEADERS) |
| 333 | message(FATAL_ERROR "LIBCXX_INSTALL_SUPPORT_HEADERS can not be turned off" |
| 334 | "when building for Musl with LIBCXX_HAS_MUSL_LIBC.") |
| 335 | endif() |
| 336 | |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 337 | #=============================================================================== |
| 338 | # Configure System |
| 339 | #=============================================================================== |
| 340 | |
Eric Fiselier | 4778eed | 2014-12-20 03:16:55 +0000 | [diff] [blame] | 341 | set(LIBCXX_COMPILER ${CMAKE_CXX_COMPILER}) |
| 342 | set(LIBCXX_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) |
| 343 | set(LIBCXX_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) |
Eric Fiselier | bde2871 | 2017-01-16 20:47:35 +0000 | [diff] [blame] | 344 | set(LIBCXX_BINARY_INCLUDE_DIR "${LIBCXX_BINARY_DIR}/include/c++build") |
Chandler Carruth | 7a033ca | 2014-12-29 12:15:47 +0000 | [diff] [blame] | 345 | set(LIBCXX_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXX_LIBDIR_SUFFIX}) |
Eric Fiselier | bde2871 | 2017-01-16 20:47:35 +0000 | [diff] [blame] | 346 | file(MAKE_DIRECTORY "${LIBCXX_BINARY_INCLUDE_DIR}") |
Eric Fiselier | 4778eed | 2014-12-20 03:16:55 +0000 | [diff] [blame] | 347 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 348 | set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LIBCXX_LIBRARY_DIR}) |
| 349 | set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LIBCXX_LIBRARY_DIR}) |
| 350 | |
Eric Fiselier | 8e2855c | 2014-11-15 06:26:30 +0000 | [diff] [blame] | 351 | # Declare libc++ configuration variables. |
| 352 | # They are intended for use as follows: |
| 353 | # LIBCXX_CXX_FLAGS: General flags for both the compiler and linker. |
| 354 | # LIBCXX_COMPILE_FLAGS: Compile only flags. |
| 355 | # LIBCXX_LINK_FLAGS: Linker only flags. |
Eric Fiselier | 3bf8a9c | 2016-10-09 21:34:03 +0000 | [diff] [blame] | 356 | # LIBCXX_LIBRARIES: libraries libc++ is linked to. |
| 357 | # LIBCXX_INTERFACE_LIBRARIES: Libraries that must be linked when using libc++ |
Eric Fiselier | 742d878 | 2016-10-10 14:45:06 +0000 | [diff] [blame] | 358 | # These libraries are exposed in the linker script. |
Eric Fiselier | 8e2855c | 2014-11-15 06:26:30 +0000 | [diff] [blame] | 359 | set(LIBCXX_COMPILE_FLAGS "") |
| 360 | set(LIBCXX_LINK_FLAGS "") |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 361 | set(LIBCXX_LIBRARIES "") |
Eric Fiselier | 3bf8a9c | 2016-10-09 21:34:03 +0000 | [diff] [blame] | 362 | set(LIBCXX_INTERFACE_LIBRARIES "") |
Eric Fiselier | 8e2855c | 2014-11-15 06:26:30 +0000 | [diff] [blame] | 363 | |
Eric Fiselier | a27cbf8 | 2016-06-02 01:10:08 +0000 | [diff] [blame] | 364 | # Include macros for adding and removing libc++ flags. |
| 365 | include(HandleLibcxxFlags) |
| 366 | |
| 367 | # Target flags ================================================================ |
| 368 | # These flags get added to CMAKE_CXX_FLAGS and CMAKE_C_FLAGS so that |
| 369 | # 'config-ix' use them during feature checks. It also adds them to both |
| 370 | # 'LIBCXX_COMPILE_FLAGS' and 'LIBCXX_LINK_FLAGS' |
| 371 | add_target_flags_if(LIBCXX_BUILD_32_BITS "-m32") |
| 372 | add_target_flags_if(LIBCXX_TARGET_TRIPLE "-target ${LIBCXX_TARGET_TRIPLE}") |
| 373 | add_target_flags_if(LIBCXX_SYSROOT "--sysroot=${LIBCXX_SYSROOT}") |
| 374 | add_target_flags_if(LIBCXX_GCC_TOOLCHAIN "-gcc-toolchain ${LIBCXX_GCC_TOOLCHAIN}") |
Eric Fiselier | 6e467a8 | 2016-11-13 22:27:00 +0000 | [diff] [blame] | 375 | if (LIBCXX_TARGET_TRIPLE) |
| 376 | set(TARGET_TRIPLE "${LIBCXX_TARGET_TRIPLE}") |
| 377 | endif() |
Eric Fiselier | a27cbf8 | 2016-06-02 01:10:08 +0000 | [diff] [blame] | 378 | |
Eric Fiselier | 9a1468f | 2014-11-15 17:25:23 +0000 | [diff] [blame] | 379 | # Configure compiler. |
| 380 | include(config-ix) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 381 | |
Saleem Abdulrasool | e146f75 | 2016-08-24 04:22:52 +0000 | [diff] [blame] | 382 | if (LIBCXX_USE_COMPILER_RT) |
| 383 | list(APPEND LIBCXX_LINK_FLAGS "-rtlib=compiler-rt") |
| 384 | endif() |
| 385 | |
Eric Fiselier | bf9653d | 2015-03-31 04:15:45 +0000 | [diff] [blame] | 386 | # Configure coverage options. |
| 387 | if (LIBCXX_GENERATE_COVERAGE) |
| 388 | include(CodeCoverage) |
| 389 | set(CMAKE_BUILD_TYPE "COVERAGE" CACHE STRING "" FORCE) |
| 390 | endif() |
Eric Fiselier | 9a1468f | 2014-11-15 17:25:23 +0000 | [diff] [blame] | 391 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 392 | string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE) |
Eric Fiselier | 157fd34 | 2017-01-14 07:54:39 +0000 | [diff] [blame] | 393 | if (uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG") |
| 394 | set(LIBCXX_DEBUG_BUILD ON) |
| 395 | else() |
| 396 | set(LIBCXX_DEBUG_BUILD OFF) |
| 397 | endif() |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 398 | |
Eric Fiselier | 9a1468f | 2014-11-15 17:25:23 +0000 | [diff] [blame] | 399 | #=============================================================================== |
| 400 | # Setup Compiler Flags |
| 401 | #=============================================================================== |
| 402 | |
JF Bastien | c7c4c77 | 2016-03-05 14:22:02 +0000 | [diff] [blame] | 403 | include(HandleLibCXXABI) # Setup the ABI library flags |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 404 | |
Michal Gorny | b79ca0a | 2016-09-27 07:55:26 +0000 | [diff] [blame] | 405 | if (NOT LIBCXX_STANDALONE_BUILD) |
| 406 | # Remove flags that may have snuck in. |
| 407 | remove_flags(-DNDEBUG -UNDEBUG -D_DEBUG |
Eric Fiselier | 8e39559 | 2017-01-17 23:27:56 +0000 | [diff] [blame] | 408 | -lc++abi) |
Michal Gorny | b79ca0a | 2016-09-27 07:55:26 +0000 | [diff] [blame] | 409 | endif() |
| 410 | remove_flags(-stdlib=libc++ -stdlib=libstdc++) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 411 | |
Eric Fiselier | fdd3c91 | 2017-01-14 06:06:47 +0000 | [diff] [blame] | 412 | # FIXME: Remove all debug flags and flags that change which Windows |
| 413 | # default libraries are linked. Currently we only support linking the |
| 414 | # non-debug DLLs |
Eric Fiselier | 157fd34 | 2017-01-14 07:54:39 +0000 | [diff] [blame] | 415 | remove_flags("/D_DEBUG" "/MTd" "/MDd" "/MT" "/Md") |
Eric Fiselier | fdd3c91 | 2017-01-14 06:06:47 +0000 | [diff] [blame] | 416 | |
Eric Fiselier | 8e39559 | 2017-01-17 23:27:56 +0000 | [diff] [blame] | 417 | # FIXME(EricWF): See the FIXME on LIBCXX_ENABLE_PEqDANTIC. |
Eric Fiselier | 7b081f6 | 2015-10-15 20:27:15 +0000 | [diff] [blame] | 418 | # Remove the -pedantic flag and -Wno-pedantic and -pedantic-errors |
| 419 | # so they don't get transformed into -Wno and -errors respectivly. |
| 420 | remove_flags(-Wno-pedantic -pedantic-errors -pedantic) |
Eric Fiselier | 499d878 | 2015-10-13 23:56:33 +0000 | [diff] [blame] | 421 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 422 | # Required flags ============================================================== |
Eric Fiselier | c9e74dd | 2016-08-14 22:51:54 +0000 | [diff] [blame] | 423 | set(LIBCXX_STANDARD_VER c++11 CACHE INTERNAL "internal option to change build dialect") |
Petr Hosek | 44197a1 | 2016-10-23 21:48:27 +0000 | [diff] [blame] | 424 | if (LIBCXX_HAS_MUSL_LIBC) |
| 425 | # musl's pthread implementations uses volatile types in their structs which is |
| 426 | # not a constexpr in C++11 but is in C++14, so we use C++14 with musl. |
| 427 | set(LIBCXX_STANDARD_VER c++14 CACHE INTERNAL "internal option to change build dialect") |
| 428 | endif() |
Eric Fiselier | c9e74dd | 2016-08-14 22:51:54 +0000 | [diff] [blame] | 429 | add_compile_flags_if_supported(-std=${LIBCXX_STANDARD_VER}) |
| 430 | mangle_name("LIBCXX_SUPPORTS_STD_EQ_${LIBCXX_STANDARD_VER}_FLAG" SUPPORTS_DIALECT_NAME) |
Saleem Abdulrasool | 1ca3c45 | 2017-01-01 20:20:40 +0000 | [diff] [blame] | 431 | if(NOT ${SUPPORTS_DIALECT_NAME}) |
| 432 | if(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC" AND NOT "${CMAKE_CXX_SIMULATE_ID}" STREQUAL "MSVC") |
| 433 | message(FATAL_ERROR "C++11 or greater is required but the compiler does not support ${LIBCXX_STANDARD_VER}") |
| 434 | endif() |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 435 | endif() |
| 436 | |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 437 | # On all systems the system c++ standard library headers need to be excluded. |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 438 | # MSVC only has -X, which disables all default includes; including the crt. |
| 439 | # Thus, we do nothing and hope we don't accidentally include any of the C++ |
| 440 | # headers |
| 441 | add_compile_flags_if_supported(-nostdinc++) |
Eric Fiselier | d74dee9 | 2015-07-29 21:07:28 +0000 | [diff] [blame] | 442 | |
Eric Fiselier | 8330b1e | 2016-10-25 19:43:44 +0000 | [diff] [blame] | 443 | # Hide all inline function definitions which have not explicitly been marked |
| 444 | # visible. This prevents new definitions for inline functions from appearing in |
| 445 | # the dylib when get ODR used by another function. |
| 446 | add_compile_flags_if_supported(-fvisibility-inlines-hidden) |
| 447 | |
Eric Fiselier | 74c9857 | 2016-09-26 22:19:41 +0000 | [diff] [blame] | 448 | # Let the library headers know they are currently being used to build the |
| 449 | # library. |
Eric Fiselier | 6dbed46 | 2016-09-16 00:00:48 +0000 | [diff] [blame] | 450 | add_definitions(-D_LIBCPP_BUILDING_LIBRARY) |
| 451 | |
Eric Fiselier | dc69aac | 2017-03-02 19:35:33 +0000 | [diff] [blame] | 452 | if (NOT LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS) |
| 453 | add_definitions(-D_LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS) |
| 454 | endif() |
| 455 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 456 | # Warning flags =============================================================== |
Eric Fiselier | 692177d | 2015-07-18 20:40:46 +0000 | [diff] [blame] | 457 | add_definitions(-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 458 | add_compile_flags_if_supported( |
Eric Fiselier | 3ec6b84 | 2016-08-29 20:43:38 +0000 | [diff] [blame] | 459 | -Wall -Wextra -W -Wwrite-strings |
| 460 | -Wno-unused-parameter -Wno-long-long |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 461 | -Werror=return-type) |
Eric Fiselier | 3ec6b84 | 2016-08-29 20:43:38 +0000 | [diff] [blame] | 462 | if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") |
| 463 | add_compile_flags_if_supported( |
| 464 | -Wno-user-defined-literals |
| 465 | -Wno-covered-switch-default) |
| 466 | elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU") |
| 467 | add_compile_flags_if_supported( |
Eric Fiselier | 3ec6b84 | 2016-08-29 20:43:38 +0000 | [diff] [blame] | 468 | -Wno-literal-suffix |
| 469 | -Wno-c++14-compat) |
| 470 | endif() |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 471 | if (LIBCXX_ENABLE_WERROR) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 472 | add_compile_flags_if_supported(-Werror) |
| 473 | add_compile_flags_if_supported(-WX) |
Eric Fiselier | 26d2390 | 2015-07-31 01:25:01 +0000 | [diff] [blame] | 474 | else() |
| 475 | # TODO(EricWF) Remove this. We shouldn't be suppressing errors when -Werror is |
| 476 | # added elsewhere. |
| 477 | add_compile_flags_if_supported(-Wno-error) |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 478 | endif() |
| 479 | if (LIBCXX_ENABLE_PEDANTIC) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 480 | add_compile_flags_if_supported(-pedantic) |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 481 | endif() |
Saleem Abdulrasool | ab008f7 | 2016-07-12 14:39:13 +0000 | [diff] [blame] | 482 | if (LIBCXX_DISABLE_MACRO_CONFLICT_WARNINGS) |
| 483 | add_definitions(-D_LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS) |
| 484 | endif() |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 485 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 486 | # Exception flags ============================================================= |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 487 | if (LIBCXX_ENABLE_EXCEPTIONS) |
| 488 | # Catches C++ exceptions only and tells the compiler to assume that extern C |
| 489 | # functions never throw a C++ exception. |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 490 | add_compile_flags_if_supported(-EHsc) |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 491 | else() |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 492 | add_definitions(-D_LIBCPP_NO_EXCEPTIONS) |
| 493 | add_compile_flags_if_supported(-EHs- -EHa-) |
| 494 | add_compile_flags_if_supported(-fno-exceptions) |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 495 | endif() |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 496 | |
| 497 | # RTTI flags ================================================================== |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 498 | if (NOT LIBCXX_ENABLE_RTTI) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 499 | add_definitions(-D_LIBCPP_NO_RTTI) |
| 500 | add_compile_flags_if_supported(-GR-) |
| 501 | add_compile_flags_if_supported(-fno-rtti) |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 502 | endif() |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 503 | |
Asiri Rathnayake | 040945b | 2016-09-11 21:46:40 +0000 | [diff] [blame] | 504 | # Threading flags ============================================================= |
Asiri Rathnayake | da39f1b | 2017-01-09 10:38:56 +0000 | [diff] [blame] | 505 | if (LIBCXX_BUILD_EXTERNAL_THREAD_LIBRARY AND LIBCXX_ENABLE_SHARED) |
Asiri Rathnayake | 040945b | 2016-09-11 21:46:40 +0000 | [diff] [blame] | 506 | # Need to allow unresolved symbols if this is to work with shared library builds |
| 507 | if (APPLE) |
| 508 | add_link_flags("-undefined dynamic_lookup") |
| 509 | else() |
| 510 | # Relax this restriction from HandleLLVMOptions |
| 511 | string(REPLACE "-Wl,-z,defs" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}") |
| 512 | endif() |
| 513 | endif() |
| 514 | |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 515 | # Assertion flags ============================================================= |
| 516 | define_if(LIBCXX_ENABLE_ASSERTIONS -UNDEBUG) |
| 517 | define_if_not(LIBCXX_ENABLE_ASSERTIONS -DNDEBUG) |
Eric Fiselier | b89eba0 | 2017-02-04 23:22:28 +0000 | [diff] [blame] | 518 | define_if(LIBCXX_ENABLE_ASSERTIONS -D_LIBCPP_DEBUG=0) |
Eric Fiselier | 157fd34 | 2017-01-14 07:54:39 +0000 | [diff] [blame] | 519 | define_if(LIBCXX_DEBUG_BUILD -D_DEBUG) |
| 520 | if (LIBCXX_ENABLE_ASSERTIONS AND NOT LIBCXX_DEBUG_BUILD) |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 521 | # MSVC doesn't like _DEBUG on release builds. See PR 4379. |
Eric Fiselier | fdd3c91 | 2017-01-14 06:06:47 +0000 | [diff] [blame] | 522 | define_if_not(LIBCXX_TARGETING_MSVC -D_DEBUG) |
Howard Hinnant | 4a0e74f | 2013-02-25 15:50:36 +0000 | [diff] [blame] | 523 | endif() |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 524 | |
Eric Fiselier | 29026ad | 2016-10-14 12:56:52 +0000 | [diff] [blame] | 525 | # Modules flags =============================================================== |
| 526 | # FIXME The libc++ sources are fundamentally non-modular. They need special |
| 527 | # versions of the headers in order to provide C++03 and legacy ABI definitions. |
| 528 | # NOTE: The public headers can be used with modules in all other contexts. |
| 529 | if (LLVM_ENABLE_MODULES) |
| 530 | # Ignore that the rest of the modules flags are now unused. |
| 531 | add_compile_flags_if_supported(-Wno-unused-command-line-argument) |
| 532 | add_compile_flags(-fno-modules) |
| 533 | endif() |
| 534 | |
Jonathan Roelofs | 5e91fa1 | 2015-08-24 21:20:07 +0000 | [diff] [blame] | 535 | # Sanitizer flags ============================================================= |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 536 | |
Chris Bieneman | 8c22696 | 2016-08-18 21:31:51 +0000 | [diff] [blame] | 537 | # Configure for sanitizers. If LIBCXX_STANDALONE_BUILD then we have to do |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 538 | # the flag translation ourselves. Othewise LLVM's CMakeList.txt will handle it. |
Chris Bieneman | 8c22696 | 2016-08-18 21:31:51 +0000 | [diff] [blame] | 539 | if (LIBCXX_STANDALONE_BUILD) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 540 | set(LLVM_USE_SANITIZER "" CACHE STRING |
| 541 | "Define the sanitizer used to build the library and tests") |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 542 | # NOTE: LLVM_USE_SANITIZER checks for a UNIX like system instead of MSVC. |
| 543 | # But we don't have LLVM_ON_UNIX so checking for MSVC is the best we can do. |
| 544 | if (LLVM_USE_SANITIZER AND NOT MSVC) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 545 | add_flags_if_supported("-fno-omit-frame-pointer") |
| 546 | add_flags_if_supported("-gline-tables-only") |
| 547 | |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 548 | if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG" AND |
| 549 | NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELWITHDEBINFO") |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 550 | add_flags_if_supported("-gline-tables-only") |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 551 | endif() |
| 552 | if (LLVM_USE_SANITIZER STREQUAL "Address") |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 553 | add_flags("-fsanitize=address") |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 554 | elseif (LLVM_USE_SANITIZER MATCHES "Memory(WithOrigins)?") |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 555 | add_flags(-fsanitize=memory) |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 556 | if (LLVM_USE_SANITIZER STREQUAL "MemoryWithOrigins") |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 557 | add_flags("-fsanitize-memory-track-origins") |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 558 | endif() |
| 559 | elseif (LLVM_USE_SANITIZER STREQUAL "Undefined") |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 560 | add_flags("-fsanitize=undefined -fno-sanitize=vptr,function -fno-sanitize-recover=all") |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 561 | elseif (LLVM_USE_SANITIZER STREQUAL "Thread") |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 562 | add_flags(-fsanitize=thread) |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 563 | else() |
| 564 | message(WARNING "Unsupported value of LLVM_USE_SANITIZER: ${LLVM_USE_SANITIZER}") |
| 565 | endif() |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 566 | elseif(LLVM_USE_SANITIZER AND MSVC) |
| 567 | message(WARNING "LLVM_USE_SANITIZER is not supported on this platform.") |
Eric Fiselier | 5514d36 | 2015-07-29 23:46:55 +0000 | [diff] [blame] | 568 | endif() |
| 569 | endif() |
Eric Fiselier | 73ffc78 | 2015-10-13 22:12:02 +0000 | [diff] [blame] | 570 | |
| 571 | # Configuration file flags ===================================================== |
Evgeniy Stepanov | 4f01aa8 | 2015-10-13 23:48:28 +0000 | [diff] [blame] | 572 | if (NOT LIBCXX_ABI_VERSION EQUAL "1") |
| 573 | config_define(${LIBCXX_ABI_VERSION} _LIBCPP_ABI_VERSION) |
| 574 | endif() |
| 575 | config_define_if(LIBCXX_ABI_UNSTABLE _LIBCPP_ABI_UNSTABLE) |
| 576 | |
Eric Fiselier | 73ffc78 | 2015-10-13 22:12:02 +0000 | [diff] [blame] | 577 | config_define_if_not(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE) |
| 578 | config_define_if_not(LIBCXX_ENABLE_STDIN _LIBCPP_HAS_NO_STDIN) |
| 579 | config_define_if_not(LIBCXX_ENABLE_STDOUT _LIBCPP_HAS_NO_STDOUT) |
| 580 | config_define_if_not(LIBCXX_ENABLE_THREADS _LIBCPP_HAS_NO_THREADS) |
| 581 | config_define_if_not(LIBCXX_ENABLE_MONOTONIC_CLOCK _LIBCPP_HAS_NO_MONOTONIC_CLOCK) |
| 582 | config_define_if_not(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS) |
| 583 | |
Ben Craig | 5163e46 | 2016-05-25 17:40:09 +0000 | [diff] [blame] | 584 | config_define_if(LIBCXX_HAS_PTHREAD_API _LIBCPP_HAS_THREAD_API_PTHREAD) |
Asiri Rathnayake | 040945b | 2016-09-11 21:46:40 +0000 | [diff] [blame] | 585 | config_define_if(LIBCXX_HAS_EXTERNAL_THREAD_API _LIBCPP_HAS_THREAD_API_EXTERNAL) |
Eric Fiselier | 66134e8 | 2017-01-06 20:05:40 +0000 | [diff] [blame] | 586 | config_define_if(LIBCXX_BUILD_EXTERNAL_THREAD_LIBRARY _LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL) |
Vasileios Kalintiris | 579b42b | 2015-11-09 10:21:04 +0000 | [diff] [blame] | 587 | config_define_if(LIBCXX_HAS_MUSL_LIBC _LIBCPP_HAS_MUSL_LIBC) |
| 588 | |
Eric Fiselier | 74c9857 | 2016-09-26 22:19:41 +0000 | [diff] [blame] | 589 | # By default libc++ on Windows expects to use a shared library, which requires |
| 590 | # the headers to use DLL import/export semantics. However when building a |
| 591 | # static library only we modify the headers to disable DLL import/export. |
| 592 | if (DEFINED WIN32 AND LIBCXX_ENABLE_STATIC AND NOT LIBCXX_ENABLE_SHARED) |
| 593 | message(STATUS "Generating custom __config for non-DLL Windows build") |
Shoaib Meenai | c6d8e8a | 2016-12-05 19:40:12 +0000 | [diff] [blame] | 594 | config_define(ON _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) |
Eric Fiselier | 74c9857 | 2016-09-26 22:19:41 +0000 | [diff] [blame] | 595 | endif() |
| 596 | |
Eric Fiselier | 73ffc78 | 2015-10-13 22:12:02 +0000 | [diff] [blame] | 597 | if (LIBCXX_NEEDS_SITE_CONFIG) |
Saleem Abdulrasool | 1ca3c45 | 2017-01-01 20:20:40 +0000 | [diff] [blame] | 598 | configure_file("include/__config_site.in" |
| 599 | "${LIBCXX_BINARY_DIR}/__config_site" |
| 600 | @ONLY) |
| 601 | |
Eric Fiselier | a662279 | 2015-10-14 00:22:05 +0000 | [diff] [blame] | 602 | # Provide the config definitions by included the generated __config_site |
| 603 | # file at compile time. |
Saleem Abdulrasool | 1ca3c45 | 2017-01-01 20:20:40 +0000 | [diff] [blame] | 604 | if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC" OR "${CMAKE_CXX_SIMULATE_ID}" STREQUAL "MSVC") |
| 605 | add_compile_flags("/FI\"${LIBCXX_BINARY_DIR}/__config_site\"") |
| 606 | else() |
| 607 | add_compile_flags("-include ${LIBCXX_BINARY_DIR}/__config_site") |
| 608 | endif() |
Eric Fiselier | 73ffc78 | 2015-10-13 22:12:02 +0000 | [diff] [blame] | 609 | endif() |
| 610 | |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 611 | #=============================================================================== |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 612 | # Setup Source Code And Tests |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 613 | #=============================================================================== |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 614 | include_directories(include) |
Howard Hinnant | c4962b3 | 2013-11-15 17:18:57 +0000 | [diff] [blame] | 615 | add_subdirectory(include) |
Michael J. Spencer | 626916f | 2010-12-10 19:47:54 +0000 | [diff] [blame] | 616 | add_subdirectory(lib) |
Eric Fiselier | b9f425a | 2015-08-22 19:40:49 +0000 | [diff] [blame] | 617 | |
Eric Fiselier | 5e000c6 | 2016-11-14 02:43:12 +0000 | [diff] [blame] | 618 | |
Eric Fiselier | d9b9ef7 | 2016-07-19 23:07:03 +0000 | [diff] [blame] | 619 | if (LIBCXX_INCLUDE_BENCHMARKS) |
| 620 | add_subdirectory(benchmarks) |
| 621 | endif() |
Eric Fiselier | c57fb58 | 2017-03-01 21:53:30 +0000 | [diff] [blame] | 622 | |
| 623 | # Create the lit.site.cfg file even when LIBCXX_INCLUDE_TESTS is OFF or |
| 624 | # LLVM_FOUND is OFF. This allows users to run the tests manually using |
| 625 | # LIT without requiring a full LLVM checkout. |
| 626 | add_subdirectory(test) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 627 | if (LIBCXX_INCLUDE_TESTS) |
Eric Fiselier | 5e000c6 | 2016-11-14 02:43:12 +0000 | [diff] [blame] | 628 | add_subdirectory(lib/abi) |
Eric Fiselier | eb6e2ea | 2015-07-30 22:30:34 +0000 | [diff] [blame] | 629 | endif() |
Eric Fiselier | c57fb58 | 2017-03-01 21:53:30 +0000 | [diff] [blame] | 630 | |
Eric Fiselier | b9f425a | 2015-08-22 19:40:49 +0000 | [diff] [blame] | 631 | if (LIBCXX_INCLUDE_DOCS) |
| 632 | add_subdirectory(docs) |
| 633 | endif() |