llvm-capstone/libclc/cmake/CMakeTestLLAsmCompiler.cmake
Jan Vesely 2ce1d090c2 Add cmake build system
Add cmake support for CLC and ll asm language,
the latter includes clang preprocessing stage.
Add ctests to check for external function calls.

v2: fix typos, style

Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Acked-by: Aaron Watry <awatry@gmail.com>
Tested-by: Aaron Watry <awatry@gmail.com>
Acked-by: Vedran Miletić <vedran@miletic.net>
llvm-svn: 347667
2018-11-27 16:07:19 +00:00

57 lines
2.3 KiB
CMake

if(CMAKE_LLAsm_COMPILER_FORCED)
# The compiler configuration was forced by the user.
# Assume the user has configured all compiler information.
set(CMAKE_LLAsm_COMPILER_WORKS TRUE)
return()
endif()
include(CMakeTestCompilerCommon)
# Remove any cached result from an older CMake version.
# We now store this in CMakeCCompiler.cmake.
unset(CMAKE_LLAsm_COMPILER_WORKS CACHE)
# This file is used by EnableLanguage in cmGlobalGenerator to
# determine that that selected llvm assembler can actually compile
# and link the most basic of programs. If not, a fatal error
# is set and cmake stops processing commands and will not generate
# any makefiles or projects.
if(NOT CMAKE_LLAsm_COMPILER_WORKS)
PrintTestCompilerStatus("LLAsm" "")
file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testLLAsmCompiler.ll
"define i32 @test() {\n"
"ret i32 0 }\n" )
try_compile(CMAKE_LLAsm_COMPILER_WORKS ${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testLLAsmCompiler.ll
# We never generate executable so bypass the link step
CMAKE_FLAGS -DCMAKE_LLAsm_LINK_EXECUTABLE='true'
OUTPUT_VARIABLE __CMAKE_LLAsm_COMPILER_OUTPUT)
# Move result from cache to normal variable.
set(CMAKE_LLAsm_COMPILER_WORKS ${CMAKE_LLAsm_COMPILER_WORKS})
unset(CMAKE_LLAsm_COMPILER_WORKS CACHE)
set(LLAsm_TEST_WAS_RUN 1)
endif()
if(NOT CMAKE_LLAsm_COMPILER_WORKS)
PrintTestCompilerStatus("LLAsm" " -- broken")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if the LLAsm compiler works failed with "
"the following output:\n${__CMAKE_LLAsm_COMPILER_OUTPUT}\n\n")
message(FATAL_ERROR "The LLAsm compiler \"${CMAKE_LLAsm_COMPILER}\" "
"is not able to compile a simple test program.\nIt fails "
"with the following output:\n ${__CMAKE_LLAsm_COMPILER_OUTPUT}\n\n"
"CMake will not be able to correctly generate this project.")
else()
if(LLAsm_TEST_WAS_RUN)
PrintTestCompilerStatus("LLAsm" " -- works")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Determining if the LLAsm compiler works passed with "
"the following output:\n${__CMAKE_LLAsm_COMPILER_OUTPUT}\n\n")
endif()
include(${CMAKE_PLATFORM_INFO_DIR}/CMakeLLAsmCompiler.cmake)
endif()
unset(__CMAKE_LLAsm_COMPILER_OUTPUT)