41 lines
1.4 KiB
CMake
41 lines
1.4 KiB
CMake
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#===--------------------------------------------------------------------===//
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#
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# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for details.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#
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#===--------------------------------------------------------------------===//
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# Map a target triple to the corresponding CMake system name.
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#
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# Usage:
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# get_triple_cmake_system_name(<triple> <out_var>)
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#
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# Sets <out_var> to the CMake-style system name
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# (e.g. "x86_64-pc-linux-gnu" -> Linux, "arm64-apple-macos" ->
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# "Darwin"). A triple with an OS cmake does not recognize maps to
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# "Generic".
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#
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# The OS/environment -> system name data is derived from
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# llvm/include/llvm/TargetParser/TripleName.def
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get_filename_component(_gtcsn_llvm_dir "${CMAKE_CURRENT_LIST_DIR}/../../llvm"
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ABSOLUTE)
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set(_gtcsn_script "${_gtcsn_llvm_dir}/utils/get_triple_system_name.py")
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function(get_triple_cmake_system_name triple out_var)
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execute_process(
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COMMAND "${Python3_EXECUTABLE}" "${_gtcsn_script}" "--triple" "${triple}"
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OUTPUT_VARIABLE _name
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OUTPUT_STRIP_TRAILING_WHITESPACE
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RESULT_VARIABLE _result)
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if(NOT _result EQUAL 0)
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message(FATAL_ERROR "Failed to derive CMake system name for '${triple}'")
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endif()
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if(_name)
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set(${out_var} "${_name}" PARENT_SCOPE)
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else()
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set(${out_var} "${CMAKE_HOST_SYSTEM_NAME}" PARENT_SCOPE)
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endif()
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endfunction()
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