ec841cf36c
After r372209, the compile command can end up including an argument with quotes in it, e.g. -fprofile-instr-use="/foo/bar.profdata" when invoking the compiler with execute_process, the compiler ends up getting that argument with quotes and all, and fails to open the file. This all seems horribly broken, but one way of working around it is to simply strip the quotes from the string here. If they were there to protect a path that's got spaces in it, that wasn't going to work anyway because the string is later split by spaces. llvm-svn: 372312
137 lines
4.9 KiB
CMake
137 lines
4.9 KiB
CMake
include(CMakeCheckCompilerFlagCommonPatterns)
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# Test compiler can compile simple C/C++/Objective-C program without invoking
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# the linker.
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#
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# try_compile_only(
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# OUTPUT_VAR
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# [SOURCE source_text]
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# [FLAGS flag_0 [ flag_1 ]]
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# )
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#
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# OUTPUT_VAR - The variable name to store the result. The result is a boolean
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# `True` or `False`.
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#
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# SOURCE - Optional. If specified use source the source text string
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# specified. If not specified source code will be used that is C,
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# C++, and Objective-C compatible.
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#
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# FLAGS - Optional. If specified pass the one or more specified flags to
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# the compiler.
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#
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# EXAMPLES:
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#
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# try_compile_only(HAS_F_NO_RTTI FLAGS "-fno-rtti")
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#
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# try_compile_only(HAS_CXX_AUTO_TYPE_DECL
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# SOURCE "int foo(int x) { auto y = x + 1; return y;}"
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# FLAGS "-x" "c++" "-std=c++11" "-Werror=c++11-extensions"
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# )
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#
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function(try_compile_only output)
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# NOTE: `SOURCE` needs to be a multi-argument because source code
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# often contains semicolons which happens to be CMake's list separator
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# which confuses `cmake_parse_arguments()`.
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cmake_parse_arguments(ARG "" "" "SOURCE;FLAGS" ${ARGN})
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if (ARG_UNPARSED_ARGUMENTS)
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message(FATAL_ERROR "Unexpected arguments \"${ARG_UNPARSED_ARGUMENTS}\"")
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endif()
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if(NOT ARG_SOURCE)
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set(ARG_SOURCE "int foo(int x, int y) { return x + y; }\n")
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endif()
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set(SIMPLE_C ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/src.c)
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file(WRITE ${SIMPLE_C} "${ARG_SOURCE}\n")
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string(REGEX MATCHALL "<[A-Za-z0-9_]*>" substitutions
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${CMAKE_C_COMPILE_OBJECT})
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set(TRY_COMPILE_FLAGS "${ARG_FLAGS}")
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if(CMAKE_C_COMPILER_ID MATCHES Clang AND CMAKE_C_COMPILER_TARGET)
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list(APPEND TRY_COMPILE_FLAGS "-target ${CMAKE_C_COMPILER_TARGET}")
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endif()
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string(REPLACE ";" " " extra_flags "${TRY_COMPILE_FLAGS}")
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set(test_compile_command "${CMAKE_C_COMPILE_OBJECT}")
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foreach(substitution ${substitutions})
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if(substitution STREQUAL "<CMAKE_C_COMPILER>")
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string(REPLACE "<CMAKE_C_COMPILER>"
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"${CMAKE_C_COMPILER}" test_compile_command ${test_compile_command})
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elseif(substitution STREQUAL "<OBJECT>")
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string(REPLACE "<OBJECT>"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/test.o"
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test_compile_command ${test_compile_command})
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elseif(substitution STREQUAL "<SOURCE>")
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string(REPLACE "<SOURCE>" "${SIMPLE_C}" test_compile_command
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${test_compile_command})
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elseif(substitution STREQUAL "<FLAGS>")
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string(REPLACE "<FLAGS>" "${CMAKE_C_FLAGS} ${extra_flags}"
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test_compile_command ${test_compile_command})
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else()
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string(REPLACE "${substitution}" "" test_compile_command
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${test_compile_command})
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endif()
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endforeach()
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# Strip quotes from the compile command, as the compiler is not expecting
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# quoted arguments (see discussion on D62063 for when this can come up). If
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# the quotes were there for arugments with spaces in them, the quotes were
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# not going to help since the string gets split on spaces below.
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string(REPLACE "\"" "" test_compile_command "${test_compile_command}")
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string(REPLACE " " ";" test_compile_command "${test_compile_command}")
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execute_process(
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COMMAND ${test_compile_command}
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RESULT_VARIABLE result
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OUTPUT_VARIABLE TEST_OUTPUT
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ERROR_VARIABLE TEST_ERROR
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)
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CHECK_COMPILER_FLAG_COMMON_PATTERNS(_CheckCCompilerFlag_COMMON_PATTERNS)
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set(ERRORS_FOUND OFF)
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foreach(var ${_CheckCCompilerFlag_COMMON_PATTERNS})
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if("${var}" STREQUAL "FAIL_REGEX")
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continue()
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endif()
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if("${TEST_ERROR}" MATCHES "${var}" OR "${TEST_OUTPUT}" MATCHES "${var}")
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set(ERRORS_FOUND ON)
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endif()
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endforeach()
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if(result EQUAL 0 AND NOT ERRORS_FOUND)
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set(${output} True PARENT_SCOPE)
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else()
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Testing compiler for supporting " ${ARGN} ":\n"
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"Command: ${test_compile_command}\n"
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"${TEST_OUTPUT}\n${TEST_ERROR}\n${result}\n")
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set(${output} False PARENT_SCOPE)
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endif()
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endfunction()
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function(builtin_check_c_compiler_flag flag output)
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if(NOT DEFINED ${output})
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message(STATUS "Performing Test ${output}")
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try_compile_only(result FLAGS ${flag})
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set(${output} ${result} CACHE INTERNAL "Compiler supports ${flag}")
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if(${result})
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message(STATUS "Performing Test ${output} - Success")
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else()
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message(STATUS "Performing Test ${output} - Failed")
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endif()
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endif()
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endfunction()
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function(builtin_check_c_compiler_source output source)
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if(NOT DEFINED ${output})
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message(STATUS "Performing Test ${output}")
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try_compile_only(result SOURCE ${source})
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set(${output} ${result} CACHE INTERNAL "Compiler supports ${flag}")
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if(${result})
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message(STATUS "Performing Test ${output} - Success")
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else()
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message(STATUS "Performing Test ${output} - Failed")
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endif()
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endif()
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endfunction()
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