forked from OSchip/llvm-project
[CMake] Cache the compiler-rt library search results
There's a lot of duplicated calls to find various compiler-rt libraries from build of runtime libraries like libunwind, libc++, libc++abi and compiler-rt. The compiler-rt helper module already implemented caching for results avoid repeated Clang invocations. This change moves the compiler-rt implementation into a shared location and reuses it from other runtimes to reduce duplication and speed up the build. Differential Revision: https://reviews.llvm.org/D88458
This commit is contained in:
Petr Hosek
parent
3be1f4b8fd
commit
0eed292fba
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@ -0,0 +1,101 @@
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# Check if compile-rt library file path exists.
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# If found, cache the path in:
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# COMPILER_RT_LIBRARY-<name>-<target>
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# If err_flag is true OR path not found, emit a message and set:
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# COMPILER_RT_LIBRARY-<name>-<target> to NOTFOUND
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function(cache_compiler_rt_library err_flag name target library_file)
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if(err_flag OR NOT EXISTS "${library_file}")
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message(STATUS "Failed to find compiler-rt ${name} library for ${target}")
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set(COMPILER_RT_LIBRARY_${name}_${target} "NOTFOUND" CACHE INTERNAL
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"compiler-rt ${name} library for ${target}")
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else()
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message(STATUS "Found compiler-rt ${name} library: ${library_file}")
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set(COMPILER_RT_LIBRARY_${name}_${target} "${library_file}" CACHE INTERNAL
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"compiler-rt ${name} library for ${target}")
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endif()
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endfunction()
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function(get_component_name name variable)
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if(APPLE)
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if(NOT name MATCHES "builtins.*")
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set(component_name "${name}_")
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endif()
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# TODO: Support ios, tvos and watchos as well.
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set(component_name "${component_name}osx")
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else()
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set(component_name "${name}")
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endif()
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set(${variable} "${component_name}" PARENT_SCOPE)
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endfunction()
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# Find the path to compiler-rt library `name` (e.g. "builtins") for the
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# specified `TARGET` (e.g. "x86_64-linux-gnu") and return it in `variable`.
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# This calls cache_compiler_rt_library that caches the path to speed up
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# repeated invocations with the same `name` and `target`.
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function(find_compiler_rt_library name variable)
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cmake_parse_arguments(ARG "" "TARGET" "" ${ARGN})
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# While we can use compiler-rt runtimes with other compilers, we need to
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# query the compiler for runtime location and thus we require Clang.
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if(NOT CMAKE_CXX_COMPILER_ID MATCHES Clang)
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set(${variable} "NOTFOUND" PARENT_SCOPE)
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return()
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endif()
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set(target "${ARG_TARGET}")
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if(NOT target AND CMAKE_CXX_COMPILER_TARGET)
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set(target "${CMAKE_CXX_COMPILER_TARGET}")
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endif()
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if(NOT DEFINED COMPILER_RT_LIBRARY_builtins_${target})
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# If the cache variable is not defined, invoke Clang and then
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# set it with cache_compiler_rt_library.
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set(clang_command ${CMAKE_CXX_COMPILER} ${CMAKE_REQUIRED_FLAGS})
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if(target)
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list(APPEND clang_command "--target=${target}")
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endif()
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get_property(cxx_flags CACHE CMAKE_CXX_FLAGS PROPERTY VALUE)
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string(REPLACE " " ";" cxx_flags "${cxx_flags}")
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list(APPEND clang_command ${cxx_flags})
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execute_process(
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COMMAND ${clang_command} "--rtlib=compiler-rt" "-print-libgcc-file-name"
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RESULT_VARIABLE had_error
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OUTPUT_VARIABLE library_file
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)
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string(STRIP "${library_file}" library_file)
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file(TO_CMAKE_PATH "${library_file}" library_file)
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get_filename_component(dirname ${library_file} DIRECTORY)
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if(APPLE)
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execute_process(
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COMMAND ${clang_command} "--print-resource-dir"
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RESULT_VARIABLE had_error
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OUTPUT_VARIABLE resource_dir
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)
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string(STRIP "${resource_dir}" resource_dir)
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set(dirname "${resource_dir}/lib/darwin")
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endif()
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get_filename_component(basename ${library_file} NAME)
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if(basename MATCHES "libclang_rt\.([a-z0-9_\-]+)\.a")
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set(from_name ${CMAKE_MATCH_1})
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get_component_name(${CMAKE_MATCH_1} to_name)
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string(REPLACE "${from_name}" "${to_name}" basename "${basename}")
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set(library_file "${dirname}/${basename}")
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cache_compiler_rt_library(${had_error} builtins "${target}" "${library_file}")
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endif()
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endif()
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if(NOT COMPILER_RT_LIBRARY_builtins_${target})
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set(${variable} "NOTFOUND" PARENT_SCOPE)
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return()
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endif()
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if(NOT DEFINED COMPILER_RT_LIBRARY_${name}_${target})
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# Clang gives only the builtins library path. Other library paths are
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# obtained by substituting "builtins" with ${name} in the builtins
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# path and then checking if the resultant path exists. The result of
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# this check is also cached by cache_compiler_rt_library.
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set(library_file "${COMPILER_RT_LIBRARY_builtins_${target}}")
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if(library_file MATCHES ".*libclang_rt\.([a-z0-9_\-]+)\.a")
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set(from_name ${CMAKE_MATCH_0})
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get_component_name(${name} to_name)
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string(REPLACE "${from_name}" "${to_name}" library_file "${library_file}")
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cache_compiler_rt_library(FALSE "${name}" "${target}" "${library_file}")
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endif()
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endif()
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set(${variable} "${COMPILER_RT_LIBRARY_${name}_${target}}" PARENT_SCOPE)
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endfunction()
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@ -16,6 +16,8 @@ endif()
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list(INSERT CMAKE_MODULE_PATH 0
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
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"${CMAKE_CURRENT_SOURCE_DIR}/../cmake"
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"${CMAKE_CURRENT_SOURCE_DIR}/../cmake/Modules"
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)
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if(CMAKE_CONFIGURATION_TYPES)
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@ -254,7 +254,7 @@ function(add_compiler_rt_runtime name type)
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if(COMPILER_RT_USE_BUILTINS_LIBRARY AND NOT type STREQUAL "OBJECT" AND
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NOT name STREQUAL "clang_rt.builtins")
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get_compiler_rt_target(${arch} target)
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find_compiler_rt_library(builtins ${target} builtins_${libname})
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find_compiler_rt_library(builtins builtins_${libname} TARGET ${target})
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if(builtins_${libname} STREQUAL "NOTFOUND")
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message(FATAL_ERROR "Cannot find builtins library for the target architecture")
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endif()
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@ -1,65 +0,0 @@
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# Check if compile-rt library file path exists.
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# If found, cache the path in:
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# COMPILER_RT_LIBRARY-<name>-<target>
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# If err_flag is true OR path not found, emit a message and set:
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# COMPILER_RT_LIBRARY-<name>-<target> to NOTFOUND
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function(cache_compiler_rt_library err_flag name target library_file)
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if(err_flag OR NOT EXISTS "${library_file}")
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message(STATUS "Failed to find compiler-rt ${name} library for ${target}")
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set(COMPILER_RT_LIBRARY-${name}-${target} "NOTFOUND" CACHE INTERNAL
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"compiler-rt ${name} library for ${target}")
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else()
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message(STATUS "Found compiler-rt ${name} library: ${library_file}")
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set(COMPILER_RT_LIBRARY-${name}-${target} "${library_file}" CACHE INTERNAL
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"compiler-rt ${name} library for ${target}")
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endif()
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endfunction()
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# Find the path to compiler-rt library `name` (e.g. "builtins") for
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# the specified `target` (e.g. "x86_64-linux") and return it in `variable`.
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# This calls cache_compiler_rt_library that caches the path to speed up
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# repeated invocations with the same `name` and `target`.
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function(find_compiler_rt_library name target variable)
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if(NOT CMAKE_CXX_COMPILER_ID MATCHES Clang)
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set(${variable} "NOTFOUND" PARENT_SCOPE)
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return()
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endif()
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if (NOT target AND CMAKE_CXX_COMPILER_TARGET)
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set(target "${CMAKE_CXX_COMPILER_TARGET}")
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endif()
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if(NOT DEFINED COMPILER_RT_LIBRARY-builtins-${target})
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# If the cache variable is not defined, invoke clang and then
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# set it with cache_compiler_rt_library.
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set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${SANITIZER_COMMON_FLAGS}
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"--rtlib=compiler-rt" "-print-libgcc-file-name")
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if(target)
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list(APPEND CLANG_COMMAND "--target=${target}")
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endif()
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get_property(SANITIZER_CXX_FLAGS CACHE CMAKE_CXX_FLAGS PROPERTY VALUE)
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string(REPLACE " " ";" SANITIZER_CXX_FLAGS "${SANITIZER_CXX_FLAGS}")
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list(APPEND CLANG_COMMAND ${SANITIZER_CXX_FLAGS})
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execute_process(
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COMMAND ${CLANG_COMMAND}
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RESULT_VARIABLE HAD_ERROR
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OUTPUT_VARIABLE LIBRARY_FILE
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)
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string(STRIP "${LIBRARY_FILE}" LIBRARY_FILE)
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file(TO_CMAKE_PATH "${LIBRARY_FILE}" LIBRARY_FILE)
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cache_compiler_rt_library(${HAD_ERROR}
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builtins "${target}" "${LIBRARY_FILE}")
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endif()
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if(NOT COMPILER_RT_LIBRARY-builtins-${target})
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set(${variable} "NOTFOUND" PARENT_SCOPE)
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return()
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endif()
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if(NOT DEFINED COMPILER_RT_LIBRARY-${name}-${target})
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# clang gives only the builtins library path. Other library paths are
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# obtained by substituting "builtins" with ${name} in the builtins
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# path and then checking if the resultant path exists. The result of
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# this check is also cached by cache_compiler_rt_library.
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set(LIBRARY_FILE "${COMPILER_RT_LIBRARY-builtins-${target}}")
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string(REPLACE "builtins" "${name}" LIBRARY_FILE "${LIBRARY_FILE}")
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cache_compiler_rt_library(FALSE "${name}" "${target}" "${LIBRARY_FILE}")
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endif()
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set(${variable} "${COMPILER_RT_LIBRARY-${name}-${target}}" PARENT_SCOPE)
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endfunction()
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@ -16,7 +16,10 @@ endfunction()
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check_library_exists(c fopen "" COMPILER_RT_HAS_LIBC)
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if (COMPILER_RT_USE_BUILTINS_LIBRARY)
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include(HandleCompilerRT)
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find_compiler_rt_library(builtins "" COMPILER_RT_BUILTINS_LIBRARY)
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cmake_push_check_state()
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set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${SANITIZER_COMMON_FLAGS}")
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find_compiler_rt_library(builtins COMPILER_RT_BUILTINS_LIBRARY)
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cmake_pop_check_state()
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# TODO(PR51389): We should check COMPILER_RT_BUILTINS_LIBRARY and report an
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# error if the value is NOTFOUND rather than silenty continuing but we first
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# need to fix find_compiler_rt_library on Darwin.
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@ -11,7 +11,9 @@ if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
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set(COMPILER_RT_BUILTINS_STANDALONE_BUILD TRUE)
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list(INSERT CMAKE_MODULE_PATH 0
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"${CMAKE_SOURCE_DIR}/../../cmake"
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"${CMAKE_SOURCE_DIR}/../../cmake/Modules")
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"${CMAKE_SOURCE_DIR}/../../cmake/Modules"
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"${CMAKE_SOURCE_DIR}/../../../cmake"
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"${CMAKE_SOURCE_DIR}/../../../cmake/Modules")
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include(base-config-ix)
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include(CompilerRTUtils)
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@ -14,6 +14,8 @@ cmake_minimum_required(VERSION 3.13.4)
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set(CMAKE_MODULE_PATH
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
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"${CMAKE_CURRENT_SOURCE_DIR}/../cmake"
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"${CMAKE_CURRENT_SOURCE_DIR}/../cmake/Modules"
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${CMAKE_MODULE_PATH}
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)
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@ -1,64 +0,0 @@
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function(find_compiler_rt_library name dest)
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if (NOT DEFINED LIBCXX_COMPILE_FLAGS)
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message(FATAL_ERROR "LIBCXX_COMPILE_FLAGS must be defined when using this function")
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endif()
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set(dest "" PARENT_SCOPE)
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set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBCXX_COMPILE_FLAGS}
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"--rtlib=compiler-rt" "--print-libgcc-file-name")
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if (CMAKE_CXX_COMPILER_ID MATCHES Clang AND CMAKE_CXX_COMPILER_TARGET)
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list(APPEND CLANG_COMMAND "--target=${CMAKE_CXX_COMPILER_TARGET}")
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endif()
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get_property(LIBCXX_CXX_FLAGS CACHE CMAKE_CXX_FLAGS PROPERTY VALUE)
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string(REPLACE " " ";" LIBCXX_CXX_FLAGS "${LIBCXX_CXX_FLAGS}")
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list(APPEND CLANG_COMMAND ${LIBCXX_CXX_FLAGS})
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execute_process(
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COMMAND ${CLANG_COMMAND}
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RESULT_VARIABLE HAD_ERROR
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OUTPUT_VARIABLE LIBRARY_FILE
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)
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string(STRIP "${LIBRARY_FILE}" LIBRARY_FILE)
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file(TO_CMAKE_PATH "${LIBRARY_FILE}" LIBRARY_FILE)
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string(REPLACE "builtins" "${name}" LIBRARY_FILE "${LIBRARY_FILE}")
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if (NOT HAD_ERROR AND EXISTS "${LIBRARY_FILE}")
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message(STATUS "Found compiler-rt library: ${LIBRARY_FILE}")
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set(${dest} "${LIBRARY_FILE}" PARENT_SCOPE)
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else()
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message(STATUS "Failed to find compiler-rt library")
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endif()
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endfunction()
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function(find_compiler_rt_dir dest)
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if (NOT DEFINED LIBCXX_COMPILE_FLAGS)
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message(FATAL_ERROR "LIBCXX_COMPILE_FLAGS must be defined when using this function")
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endif()
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set(dest "" PARENT_SCOPE)
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if (APPLE)
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set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBCXX_COMPILE_FLAGS}
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"-print-file-name=lib")
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execute_process(
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COMMAND ${CLANG_COMMAND}
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RESULT_VARIABLE HAD_ERROR
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OUTPUT_VARIABLE LIBRARY_DIR
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)
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string(STRIP "${LIBRARY_DIR}" LIBRARY_DIR)
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file(TO_CMAKE_PATH "${LIBRARY_DIR}" LIBRARY_DIR)
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set(LIBRARY_DIR "${LIBRARY_DIR}/darwin")
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else()
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set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBCXX_COMPILE_FLAGS}
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"--rtlib=compiler-rt" "--print-libgcc-file-name")
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execute_process(
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COMMAND ${CLANG_COMMAND}
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RESULT_VARIABLE HAD_ERROR
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OUTPUT_VARIABLE LIBRARY_FILE
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)
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string(STRIP "${LIBRARY_FILE}" LIBRARY_FILE)
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file(TO_CMAKE_PATH "${LIBRARY_FILE}" LIBRARY_FILE)
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get_filename_component(LIBRARY_DIR "${LIBRARY_FILE}" DIRECTORY)
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endif()
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if (NOT HAD_ERROR AND EXISTS "${LIBRARY_DIR}")
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message(STATUS "Found compiler-rt directory: ${LIBRARY_DIR}")
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set(${dest} "${LIBRARY_DIR}" PARENT_SCOPE)
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else()
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message(STATUS "Failed to find compiler-rt directory")
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endif()
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endfunction()
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@ -48,8 +48,10 @@ if (LIBCXX_SUPPORTS_NOSTDLIBXX_FLAG OR LIBCXX_SUPPORTS_NODEFAULTLIBS_FLAG)
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list(APPEND CMAKE_REQUIRED_LIBRARIES c)
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endif ()
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if (LIBCXX_USE_COMPILER_RT)
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set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -rtlib=compiler-rt")
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cmake_push_check_state()
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set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${LIBCXX_COMPILE_FLAGS}")
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find_compiler_rt_library(builtins LIBCXX_BUILTINS_LIBRARY)
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cmake_pop_check_state()
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list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBCXX_BUILTINS_LIBRARY}")
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elseif (LIBCXX_HAS_GCC_LIB)
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list(APPEND CMAKE_REQUIRED_LIBRARIES gcc)
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@ -163,7 +163,8 @@ if (APPLE AND LLVM_USE_SANITIZER)
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message(WARNING "LLVM_USE_SANITIZER=${LLVM_USE_SANITIZER} is not supported on OS X")
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endif()
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if (LIBFILE)
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find_compiler_rt_dir(LIBDIR)
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find_compiler_rt_library(builtins LIBCXX_BUILTINS_LIBRARY)
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get_filename_component(LIBDIR "${LIBCXX_BUILTINS_LIBRARY}" DIRECTORY)
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if (NOT IS_DIRECTORY "${LIBDIR}")
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message(FATAL_ERROR "Cannot find compiler-rt directory on OS X required for LLVM_USE_SANITIZER")
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endif()
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@ -14,6 +14,8 @@ cmake_minimum_required(VERSION 3.13.4)
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set(CMAKE_MODULE_PATH
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
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"${CMAKE_CURRENT_SOURCE_DIR}/../cmake"
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"${CMAKE_CURRENT_SOURCE_DIR}/../cmake/Modules"
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${CMAKE_MODULE_PATH}
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)
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@ -1,64 +0,0 @@
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function(find_compiler_rt_library name dest)
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if (NOT DEFINED LIBCXXABI_COMPILE_FLAGS)
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message(FATAL_ERROR "LIBCXXABI_COMPILE_FLAGS must be defined when using this function")
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endif()
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set(dest "" PARENT_SCOPE)
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set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBCXXABI_COMPILE_FLAGS}
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"--rtlib=compiler-rt" "--print-libgcc-file-name")
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if (CMAKE_CXX_COMPILER_ID MATCHES Clang AND CMAKE_CXX_COMPILER_TARGET)
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list(APPEND CLANG_COMMAND "--target=${CMAKE_CXX_COMPILER_TARGET}")
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endif()
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get_property(LIBCXXABI_CXX_FLAGS CACHE CMAKE_CXX_FLAGS PROPERTY VALUE)
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string(REPLACE " " ";" LIBCXXABI_CXX_FLAGS "${LIBCXXABI_CXX_FLAGS}")
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list(APPEND CLANG_COMMAND ${LIBCXXABI_CXX_FLAGS})
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execute_process(
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COMMAND ${CLANG_COMMAND}
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RESULT_VARIABLE HAD_ERROR
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OUTPUT_VARIABLE LIBRARY_FILE
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)
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string(STRIP "${LIBRARY_FILE}" LIBRARY_FILE)
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file(TO_CMAKE_PATH "${LIBRARY_FILE}" LIBRARY_FILE)
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string(REPLACE "builtins" "${name}" LIBRARY_FILE "${LIBRARY_FILE}")
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if (NOT HAD_ERROR AND EXISTS "${LIBRARY_FILE}")
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message(STATUS "Found compiler-rt library: ${LIBRARY_FILE}")
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set(${dest} "${LIBRARY_FILE}" PARENT_SCOPE)
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else()
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message(STATUS "Failed to find compiler-rt library")
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endif()
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endfunction()
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function(find_compiler_rt_dir dest)
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if (NOT DEFINED LIBCXXABI_COMPILE_FLAGS)
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message(FATAL_ERROR "LIBCXXABI_COMPILE_FLAGS must be defined when using this function")
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endif()
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set(dest "" PARENT_SCOPE)
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if (APPLE)
|
||||
set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBCXXABI_COMPILE_FLAGS}
|
||||
"-print-file-name=lib")
|
||||
execute_process(
|
||||
COMMAND ${CLANG_COMMAND}
|
||||
RESULT_VARIABLE HAD_ERROR
|
||||
OUTPUT_VARIABLE LIBRARY_DIR
|
||||
)
|
||||
string(STRIP "${LIBRARY_DIR}" LIBRARY_DIR)
|
||||
file(TO_CMAKE_PATH "${LIBRARY_DIR}" LIBRARY_DIR)
|
||||
set(LIBRARY_DIR "${LIBRARY_DIR}/darwin")
|
||||
else()
|
||||
set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBCXXABI_COMPILE_FLAGS}
|
||||
"--rtlib=compiler-rt" "--print-libgcc-file-name")
|
||||
execute_process(
|
||||
COMMAND ${CLANG_COMMAND}
|
||||
RESULT_VARIABLE HAD_ERROR
|
||||
OUTPUT_VARIABLE LIBRARY_FILE
|
||||
)
|
||||
string(STRIP "${LIBRARY_FILE}" LIBRARY_FILE)
|
||||
file(TO_CMAKE_PATH "${LIBRARY_FILE}" LIBRARY_FILE)
|
||||
get_filename_component(LIBRARY_DIR "${LIBRARY_FILE}" DIRECTORY)
|
||||
endif()
|
||||
if (NOT HAD_ERROR AND EXISTS "${LIBRARY_DIR}")
|
||||
message(STATUS "Found compiler-rt directory: ${LIBRARY_DIR}")
|
||||
set(${dest} "${LIBRARY_DIR}" PARENT_SCOPE)
|
||||
else()
|
||||
message(STATUS "Failed to find compiler-rt directory")
|
||||
endif()
|
||||
endfunction()
|
||||
|
|
@ -38,8 +38,10 @@ if (LIBCXXABI_SUPPORTS_NOSTDLIBXX_FLAG OR LIBCXXABI_SUPPORTS_NODEFAULTLIBS_FLAG)
|
|||
list(APPEND CMAKE_REQUIRED_LIBRARIES c)
|
||||
endif ()
|
||||
if (LIBCXXABI_USE_COMPILER_RT)
|
||||
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -rtlib=compiler-rt")
|
||||
cmake_push_check_state()
|
||||
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${LIBCXXABI_COMPILE_FLAGS}")
|
||||
find_compiler_rt_library(builtins LIBCXXABI_BUILTINS_LIBRARY)
|
||||
cmake_pop_check_state()
|
||||
list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBCXXABI_BUILTINS_LIBRARY}")
|
||||
else ()
|
||||
if (LIBCXXABI_HAS_GCC_S_LIB)
|
||||
|
|
|
|||
|
|
@ -136,7 +136,8 @@ if ( APPLE )
|
|||
message(WARNING "LLVM_USE_SANITIZER=${LLVM_USE_SANITIZER} is not supported on OS X")
|
||||
endif()
|
||||
if (LIBFILE)
|
||||
find_compiler_rt_dir(LIBDIR)
|
||||
find_compiler_rt_library(builtins LIBCXXABI_BUILTINS_LIBRARY)
|
||||
get_filename_component(LIBDIR "${LIBCXXABI_BUILTINS_LIBRARY}" DIRECTORY)
|
||||
if (NOT IS_DIRECTORY "${LIBDIR}")
|
||||
message(FATAL_ERROR "Cannot find compiler-rt directory on OS X required for LLVM_USE_SANITIZER")
|
||||
endif()
|
||||
|
|
|
|||
|
|
@ -12,6 +12,8 @@ cmake_minimum_required(VERSION 3.13.4)
|
|||
set(CMAKE_MODULE_PATH
|
||||
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
|
||||
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
|
||||
"${CMAKE_CURRENT_SOURCE_DIR}/../cmake"
|
||||
"${CMAKE_CURRENT_SOURCE_DIR}/../cmake/Modules"
|
||||
${CMAKE_MODULE_PATH}
|
||||
)
|
||||
|
||||
|
|
|
|||
|
|
@ -1,64 +0,0 @@
|
|||
function(find_compiler_rt_library name dest)
|
||||
if (NOT DEFINED LIBUNWIND_COMPILE_FLAGS)
|
||||
message(FATAL_ERROR "LIBUNWIND_COMPILE_FLAGS must be defined when using this function")
|
||||
endif()
|
||||
set(dest "" PARENT_SCOPE)
|
||||
set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBUNWIND_COMPILE_FLAGS}
|
||||
"--rtlib=compiler-rt" "--print-libgcc-file-name")
|
||||
if (CMAKE_CXX_COMPILER_ID MATCHES Clang AND CMAKE_CXX_COMPILER_TARGET)
|
||||
list(APPEND CLANG_COMMAND "--target=${CMAKE_CXX_COMPILER_TARGET}")
|
||||
endif()
|
||||
get_property(LIBUNWIND_CXX_FLAGS CACHE CMAKE_CXX_FLAGS PROPERTY VALUE)
|
||||
string(REPLACE " " ";" LIBUNWIND_CXX_FLAGS "${LIBUNWIND_CXX_FLAGS}")
|
||||
list(APPEND CLANG_COMMAND ${LIBUNWIND_CXX_FLAGS})
|
||||
execute_process(
|
||||
COMMAND ${CLANG_COMMAND}
|
||||
RESULT_VARIABLE HAD_ERROR
|
||||
OUTPUT_VARIABLE LIBRARY_FILE
|
||||
)
|
||||
string(STRIP "${LIBRARY_FILE}" LIBRARY_FILE)
|
||||
file(TO_CMAKE_PATH "${LIBRARY_FILE}" LIBRARY_FILE)
|
||||
string(REPLACE "builtins" "${name}" LIBRARY_FILE "${LIBRARY_FILE}")
|
||||
if (NOT HAD_ERROR AND EXISTS "${LIBRARY_FILE}")
|
||||
message(STATUS "Found compiler-rt library: ${LIBRARY_FILE}")
|
||||
set(${dest} "${LIBRARY_FILE}" PARENT_SCOPE)
|
||||
else()
|
||||
message(STATUS "Failed to find compiler-rt library")
|
||||
endif()
|
||||
endfunction()
|
||||
|
||||
function(find_compiler_rt_dir dest)
|
||||
if (NOT DEFINED LIBUNWIND_COMPILE_FLAGS)
|
||||
message(FATAL_ERROR "LIBUNWIND_COMPILE_FLAGS must be defined when using this function")
|
||||
endif()
|
||||
set(dest "" PARENT_SCOPE)
|
||||
if (APPLE)
|
||||
set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBUNWIND_COMPILE_FLAGS}
|
||||
"-print-file-name=lib")
|
||||
execute_process(
|
||||
COMMAND ${CLANG_COMMAND}
|
||||
RESULT_VARIABLE HAD_ERROR
|
||||
OUTPUT_VARIABLE LIBRARY_DIR
|
||||
)
|
||||
string(STRIP "${LIBRARY_DIR}" LIBRARY_DIR)
|
||||
file(TO_CMAKE_PATH "${LIBRARY_DIR}" LIBRARY_DIR)
|
||||
set(LIBRARY_DIR "${LIBRARY_DIR}/darwin")
|
||||
else()
|
||||
set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBUNWIND_COMPILE_FLAGS}
|
||||
"--rtlib=compiler-rt" "--print-libgcc-file-name")
|
||||
execute_process(
|
||||
COMMAND ${CLANG_COMMAND}
|
||||
RESULT_VARIABLE HAD_ERROR
|
||||
OUTPUT_VARIABLE LIBRARY_FILE
|
||||
)
|
||||
string(STRIP "${LIBRARY_FILE}" LIBRARY_FILE)
|
||||
file(TO_CMAKE_PATH "${LIBRARY_FILE}" LIBRARY_FILE)
|
||||
get_filename_component(LIBRARY_DIR "${LIBRARY_FILE}" DIRECTORY)
|
||||
endif()
|
||||
if (NOT HAD_ERROR AND EXISTS "${LIBRARY_DIR}")
|
||||
message(STATUS "Found compiler-rt directory: ${LIBRARY_DIR}")
|
||||
set(${dest} "${LIBRARY_DIR}" PARENT_SCOPE)
|
||||
else()
|
||||
message(STATUS "Failed to find compiler-rt directory")
|
||||
endif()
|
||||
endfunction()
|
||||
|
|
@ -40,7 +40,10 @@ if (LIBUNWIND_SUPPORTS_NOSTDLIBXX_FLAG OR LIBUNWIND_SUPPORTS_NODEFAULTLIBS_FLAG)
|
|||
list(APPEND CMAKE_REQUIRED_LIBRARIES c)
|
||||
endif ()
|
||||
if (LIBUNWIND_USE_COMPILER_RT)
|
||||
cmake_push_check_state()
|
||||
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${LIBUNWIND_COMPILE_FLAGS}")
|
||||
find_compiler_rt_library(builtins LIBUNWIND_BUILTINS_LIBRARY)
|
||||
cmake_pop_check_state()
|
||||
list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBUNWIND_BUILTINS_LIBRARY}")
|
||||
else ()
|
||||
if (LIBUNWIND_HAS_GCC_S_LIB)
|
||||
|
|
|
|||
Loading…
Reference in New Issue