Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 1 | #=============================================================================== |
Tanya Lattner | c6c7731 | 2015-08-06 23:31:37 +0000 | [diff] [blame] | 2 | # Setup Project |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 3 | #=============================================================================== |
| 4 | |
| 5 | cmake_minimum_required(VERSION 2.8.8) |
| 6 | |
| 7 | if (POLICY CMP0042) |
| 8 | cmake_policy(SET CMP0042 NEW) # Set MACOSX_RPATH=YES by default |
| 9 | endif() |
| 10 | |
| 11 | if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) |
| 12 | project(libunwind) |
| 13 | |
| 14 | # Rely on llvm-config. |
| 15 | set(CONFIG_OUTPUT) |
| 16 | find_program(LLVM_CONFIG "llvm-config") |
| 17 | if (DEFINED LLVM_PATH) |
| 18 | set(LLVM_INCLUDE_DIR ${LLVM_INCLUDE_DIR} CACHE PATH "Path to llvm/include") |
| 19 | set(LLVM_PATH ${LLVM_PATH} CACHE PATH "Path to LLVM source tree") |
| 20 | set(LLVM_MAIN_SRC_DIR ${LLVM_PATH}) |
| 21 | set(LLVM_CMAKE_PATH "${LLVM_PATH}/cmake/modules") |
| 22 | elseif (LLVM_CONFIG) |
| 23 | message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}") |
| 24 | set(CONFIG_COMMAND ${LLVM_CONFIG} "--includedir" "--prefix" "--src-root") |
| 25 | execute_process(COMMAND ${CONFIG_COMMAND} |
| 26 | RESULT_VARIABLE HAD_ERROR |
| 27 | OUTPUT_VARIABLE CONFIG_OUTPUT) |
| 28 | if (NOT HAD_ERROR) |
| 29 | string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" |
| 30 | CONFIG_OUTPUT ${CONFIG_OUTPUT}) |
| 31 | else () |
| 32 | string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}") |
| 33 | message(STATUS "${CONFIG_COMMAND_STR}") |
| 34 | message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}") |
| 35 | endif () |
| 36 | |
| 37 | list(GET CONFIG_OUTPUT 0 INCLUDE_DIR) |
| 38 | list(GET CONFIG_OUTPUT 1 LLVM_OBJ_ROOT) |
| 39 | list(GET CONFIG_OUTPUT 2 MAIN_SRC_DIR) |
| 40 | |
| 41 | set(LLVM_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include") |
| 42 | set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree") |
| 43 | set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree") |
Kamil Rytarowski | 0e5bf1c | 2016-02-06 16:23:18 +0000 | [diff] [blame] | 44 | set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm") |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 45 | set(LLVM_LIT_PATH "${LLVM_PATH}/utils/lit/lit.py") |
| 46 | else () |
| 47 | message(FATAL_ERROR "llvm-config not found and LLVM_MAIN_SRC_DIR not defined. " |
| 48 | "Reconfigure with -DLLVM_CONFIG=path/to/llvm-config " |
| 49 | "or -DLLVM_PATH=path/to/llvm-source-root.") |
| 50 | endif () |
| 51 | |
| 52 | if (EXISTS ${LLVM_CMAKE_PATH}) |
| 53 | list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}") |
| 54 | include("${LLVM_CMAKE_PATH}/AddLLVM.cmake") |
| 55 | include("${LLVM_CMAKE_PATH}/HandleLLVMOptions.cmake") |
| 56 | else () |
| 57 | message(FATAL_ERROR "Not found: ${LLVM_CMAKE_PATH}") |
| 58 | endif () |
| 59 | |
| 60 | set(PACKAGE_NAME libunwind) |
Hans Wennborg | 5283875 | 2015-07-22 21:36:42 +0000 | [diff] [blame] | 61 | set(PACKAGE_VERSION 3.8.0svn) |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 62 | set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}") |
Tanya Lattner | d2257f6 | 2015-08-05 04:01:47 +0000 | [diff] [blame] | 63 | set(PACKAGE_BUGREPORT "llvm-bugs@lists.llvm.org") |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 64 | |
| 65 | if (EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py) |
| 66 | set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py) |
| 67 | else () |
| 68 | # Seek installed Lit. |
| 69 | find_program(LLVM_LIT "lit.py" ${LLVM_MAIN_SRC_DIR}/utils/lit |
| 70 | DOC "Path to lit.py") |
| 71 | endif () |
| 72 | |
| 73 | if (LLVM_LIT) |
| 74 | # Define the default arguments to use with 'lit', and an option for the user |
| 75 | # to override. |
| 76 | set(LIT_ARGS_DEFAULT "-sv") |
| 77 | if (MSVC OR XCODE) |
| 78 | set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar") |
| 79 | endif () |
| 80 | set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit") |
| 81 | |
| 82 | # On Win32 hosts, provide an option to specify the path to the GnuWin32 tools. |
| 83 | if (WIN32 AND NOT CYGWIN) |
| 84 | set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools") |
| 85 | endif () |
| 86 | else () |
| 87 | set(LLVM_INCLUDE_TESTS OFF) |
| 88 | endif () |
| 89 | |
| 90 | set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}) |
| 91 | set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}) |
| 92 | else() |
| 93 | set(LLVM_MAIN_SRC_DIR "${CMAKE_SOURCE_DIR}" CACHE PATH "Path to LLVM source tree") |
| 94 | set(LLVM_LIT "${CMAKE_SOURCE_DIR}/utils/lit/lit.py") |
| 95 | endif() |
| 96 | |
| 97 | #=============================================================================== |
| 98 | # Setup CMake Options |
| 99 | #=============================================================================== |
| 100 | |
| 101 | # Define options. |
Eric Fiselier | c00311e | 2016-06-02 01:02:10 +0000 | [diff] [blame] | 102 | option(LIBUNWIND_BUILD_32_BITS "Build 32 bit libunwind" ${LLVM_BUILD_32_BITS}) |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 103 | option(LIBUNWIND_ENABLE_ASSERTIONS "Enable assertions independent of build mode." ON) |
| 104 | option(LIBUNWIND_ENABLE_PEDANTIC "Compile with pedantic enabled." ON) |
| 105 | option(LIBUNWIND_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF) |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 106 | option(LIBUNWIND_ENABLE_SHARED "Build libunwind as a shared library." ON) |
Asiri Rathnayake | d45afb2 | 2016-05-27 08:29:27 +0000 | [diff] [blame] | 107 | option(LIBUNWIND_ENABLE_CROSS_UNWINDING "Enable cross-platform unwinding support." OFF) |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 108 | |
Eric Fiselier | c00311e | 2016-06-02 01:02:10 +0000 | [diff] [blame] | 109 | set(LIBUNWIND_TARGET_TRIPLE "" CACHE STRING "Target triple for cross compiling.") |
| 110 | set(LIBUNWIND_GCC_TOOLCHAIN "" CACHE PATH "GCC toolchain for cross compiling.") |
| 111 | set(LIBUNWIND_SYSROOT "" CACHE PATH "Sysroot for cross compiling.") |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 112 | |
Eric Fiselier | ced9d77 | 2016-06-02 01:19:52 +0000 | [diff] [blame] | 113 | |
| 114 | # Check that we can build with 32 bits if requested. |
| 115 | if (CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32) |
| 116 | if (LIBUNWIND_BUILD_32_BITS AND NOT LLVM_BUILD_32_BITS) # Don't duplicate the output from LLVM |
| 117 | message(STATUS "Building 32 bits executables and libraries.") |
| 118 | endif() |
| 119 | elseif(LIBUNWIND_BUILD_32_BITS) |
| 120 | message(FATAL_ERROR "LIBUNWIND_BUILD_32_BITS=ON is not supported on this platform.") |
| 121 | endif() |
| 122 | |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 123 | #=============================================================================== |
| 124 | # Configure System |
| 125 | #=============================================================================== |
| 126 | |
| 127 | # Add path for custom modules |
| 128 | set(CMAKE_MODULE_PATH |
| 129 | "${CMAKE_CURRENT_SOURCE_DIR}/cmake" |
| 130 | ${CMAKE_MODULE_PATH}) |
| 131 | |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 132 | set(LIBUNWIND_COMPILER ${CMAKE_CXX_COMPILER}) |
| 133 | set(LIBUNWIND_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) |
| 134 | set(LIBUNWIND_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) |
| 135 | set(LIBUNWIND_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}) |
| 136 | |
Eric Fiselier | c00311e | 2016-06-02 01:02:10 +0000 | [diff] [blame] | 137 | set(LIBUNWIND_C_FLAGS "") |
| 138 | set(LIBUNWIND_CXX_FLAGS "") |
| 139 | set(LIBUNWIND_COMPILE_FLAGS "") |
| 140 | set(LIBUNWIND_LINK_FLAGS "") |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 141 | |
| 142 | # Get required flags. |
| 143 | macro(append_if list condition var) |
| 144 | if (${condition}) |
| 145 | list(APPEND ${list} ${var}) |
| 146 | endif() |
| 147 | endmacro() |
| 148 | |
Eric Fiselier | c00311e | 2016-06-02 01:02:10 +0000 | [diff] [blame] | 149 | macro(add_target_flags_if condition var) |
| 150 | if (${condition}) |
| 151 | set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${var}") |
| 152 | set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${var}") |
| 153 | list(APPEND LINUNWIND_COMPILE_FLAGS ${var}) |
| 154 | list(APPEND LIBUNWIND_LINK_FLAGS ${var}) |
| 155 | endif() |
| 156 | endmacro() |
| 157 | |
| 158 | add_target_flags_if(LIBUNWIND_BUILD_32_BITS "-m32") |
| 159 | add_target_flags_if(LIBUNWIND_TARGET_TRIPLE |
| 160 | "-target ${LIBUNWIND_TARGET_TRIPLE}") |
| 161 | add_target_flags_if(LIBUNWIND_GCC_TOOLCHAIN |
| 162 | "-gcc-toolchain ${LIBUNWIND_GCC_TOOLCHAIN}") |
| 163 | add_target_flags_if(LIBUNWIND_SYSROOT |
| 164 | "--sysroot=${LIBUNWIND_SYSROOT}") |
| 165 | |
| 166 | # Configure compiler. |
| 167 | include(config-ix) |
| 168 | |
| 169 | #=============================================================================== |
| 170 | # Setup Compiler Flags |
| 171 | #=============================================================================== |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 172 | |
| 173 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WERROR_FLAG -Werror=return-type) |
| 174 | |
| 175 | # Get warning flags |
| 176 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_W_FLAG -W) |
| 177 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WALL_FLAG -Wall) |
| 178 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WCHAR_SUBSCRIPTS_FLAG -Wchar-subscripts) |
| 179 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WCONVERSION_FLAG -Wconversion) |
| 180 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WMISMATCHED_TAGS_FLAG -Wmismatched-tags) |
| 181 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WMISSING_BRACES_FLAG -Wmissing-braces) |
| 182 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WNEWLINE_EOF_FLAG -Wnewline-eof) |
| 183 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WNO_UNUSED_FUNCTION_FLAG -Wno-unused-function) |
| 184 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSHADOW_FLAG -Wshadow) |
| 185 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSHORTEN_64_TO_32_FLAG -Wshorten-64-to-32) |
| 186 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSIGN_COMPARE_FLAG -Wsign-compare) |
| 187 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSIGN_CONVERSION_FLAG -Wsign-conversion) |
| 188 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSTRICT_ALIASING_FLAG -Wstrict-aliasing=2) |
| 189 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSTRICT_OVERFLOW_FLAG -Wstrict-overflow=4) |
| 190 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WUNUSED_PARAMETER_FLAG -Wunused-parameter) |
| 191 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WUNUSED_VARIABLE_FLAG -Wunused-variable) |
| 192 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WWRITE_STRINGS_FLAG -Wwrite-strings) |
| 193 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WUNDEF_FLAG -Wundef) |
| 194 | |
| 195 | if (LIBUNWIND_ENABLE_WERROR) |
| 196 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WERROR_FLAG -Werror) |
| 197 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WX_FLAG -WX) |
| 198 | else() |
| 199 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WNO_ERROR_FLAG -Wno-error) |
| 200 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_NO_WX_FLAG -WX-) |
| 201 | endif() |
| 202 | |
| 203 | if (LIBUNWIND_ENABLE_PEDANTIC) |
| 204 | append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_PEDANTIC_FLAG -pedantic) |
| 205 | endif() |
| 206 | |
| 207 | # Get feature flags. |
| 208 | # Exceptions |
| 209 | # Catches C++ exceptions only and tells the compiler to assume that extern C |
| 210 | # functions never throw a C++ exception. |
| 211 | append_if(LIBUNWIND_CXX_FLAGS LIBUNWIND_HAS_FSTRICT_ALIASING_FLAG -fstrict-aliasing) |
| 212 | append_if(LIBUNWIND_CXX_FLAGS LIBUNWIND_HAS_EHSC_FLAG -EHsc) |
| 213 | |
| 214 | append_if(LIBUNWIND_C_FLAGS LIBUNWIND_HAS_FUNWIND_TABLES -funwind-tables) |
| 215 | |
| 216 | # Assert |
| 217 | string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE) |
| 218 | if (LIBUNWIND_ENABLE_ASSERTIONS) |
| 219 | # MSVC doesn't like _DEBUG on release builds. See PR 4379. |
| 220 | if (NOT MSVC) |
| 221 | list(APPEND LIBUNWIND_COMPILE_FLAGS -D_DEBUG) |
| 222 | endif () |
| 223 | |
| 224 | # On Release builds cmake automatically defines NDEBUG, so we |
| 225 | # explicitly undefine it: |
| 226 | if (uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE") |
| 227 | list(APPEND LIBUNWIND_COMPILE_FLAGS -UNDEBUG) |
| 228 | endif () |
| 229 | else() |
| 230 | if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE") |
| 231 | list(APPEND LIBUNWIND_COMPILE_FLAGS -DNDEBUG) |
| 232 | endif () |
| 233 | endif () |
| 234 | |
Asiri Rathnayake | d2d1ea9 | 2016-05-25 12:36:34 +0000 | [diff] [blame] | 235 | # Cross-unwinding |
| 236 | if (NOT LIBUNWIND_ENABLE_CROSS_UNWINDING) |
| 237 | list(APPEND LIBUNWIND_COMPILE_FLAGS -D_LIBUNWIND_IS_NATIVE_ONLY) |
| 238 | endif () |
| 239 | |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 240 | # This is the _ONLY_ place where add_definitions is called. |
| 241 | if (MSVC) |
| 242 | add_definitions(-D_CRT_SECURE_NO_WARNINGS) |
| 243 | endif () |
| 244 | |
Saleem Abdulrasool | a3923ac | 2015-04-25 01:46:35 +0000 | [diff] [blame] | 245 | #=============================================================================== |
| 246 | # Setup Source Code |
| 247 | #=============================================================================== |
| 248 | |
| 249 | include_directories(include) |
| 250 | |
| 251 | add_subdirectory(src) |