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llvm-6502/cmake/modules/LLVMProcessSources.cmake

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include(AddFileDependencies)
function(llvm_replace_compiler_option var old new)
# Replaces a compiler option or switch `old' in `var' by `new'.
# If `old' is not in `var', appends `new' to `var'.
# Example: llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")
# If the option already is on the variable, don't add it:
if( "${${var}}" MATCHES "(^| )${new}($| )" )
set(n "")
else()
set(n "${new}")
endif()
if( "${${var}}" MATCHES "(^| )${old}($| )" )
string( REGEX REPLACE "(^| )${old}($| )" " ${n} " ${var} "${${var}}" )
else()
set( ${var} "${${var}} ${n}" )
endif()
set( ${var} "${${var}}" PARENT_SCOPE )
endfunction(llvm_replace_compiler_option)
macro(add_td_sources srcs)
file(GLOB tds *.td)
if( tds )
source_group("TableGen descriptions" FILES ${tds})
set_source_files_properties(${tds} PROPERTIES HEADER_FILE_ONLY ON)
list(APPEND ${srcs} ${tds})
endif()
endmacro(add_td_sources)
macro(add_header_files srcs)
file(GLOB hds *.h *.def)
if( hds )
set_source_files_properties(${hds} PROPERTIES HEADER_FILE_ONLY ON)
list(APPEND ${srcs} ${hds})
endif()
endmacro(add_header_files)
function(llvm_process_sources OUT_VAR)
set( sources ${ARGN} )
llvm_check_source_file_list( ${sources} )
# Create file dependencies on the tablegenned files, if any. Seems
# that this is not strictly needed, as dependencies of the .cpp
# sources on the tablegenned .inc files are detected and handled,
# but just in case...
foreach( s ${sources} )
set( f ${CMAKE_CURRENT_SOURCE_DIR}/${s} )
add_file_dependencies( ${f} ${TABLEGEN_OUTPUT} )
endforeach(s)
if( MSVC_IDE )
# This adds .td and .h files to the Visual Studio solution:
add_td_sources(sources)
add_header_files(sources)
endif()
# Set common compiler options:
if( NOT LLVM_REQUIRES_EH )
if( CMAKE_COMPILER_IS_GNUCXX )
add_definitions( -fno-exceptions )
elseif( MSVC )
llvm_replace_compiler_option(CMAKE_CXX_FLAGS "/EHsc" "/EHs-c-")
add_definitions( /D_HAS_EXCEPTIONS=0 )
endif()
endif()
if( NOT LLVM_REQUIRES_RTTI )
if( CMAKE_COMPILER_IS_GNUCXX )
llvm_replace_compiler_option(CMAKE_CXX_FLAGS "-frtti" "-fno-rtti")
elseif( MSVC )
llvm_replace_compiler_option(CMAKE_CXX_FLAGS "/GR" "/GR-")
endif()
endif()
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" PARENT_SCOPE )
set( ${OUT_VAR} ${sources} PARENT_SCOPE )
endfunction(llvm_process_sources)
function(llvm_check_source_file_list)
set(listed ${ARGN})
file(GLOB globbed *.cpp)
foreach(g ${globbed})
get_filename_component(fn ${g} NAME)
list(FIND listed ${fn} idx)
if( idx LESS 0 )
message(SEND_ERROR "Found unknown source file ${g}
Please update ${CMAKE_CURRENT_SOURCE_DIR}/CMakeLists.txt\n")
endif()
endforeach()
endfunction(llvm_check_source_file_list)