1function(add_startup_object name) 2 cmake_parse_arguments( 3 "ADD_STARTUP_OBJECT" 4 "ALIAS" # Option argument 5 "SRC" # Single value arguments 6 "DEPENDS;COMPILE_OPTIONS" # Multi value arguments 7 ${ARGN} 8 ) 9 10 get_fq_target_name(${name} fq_target_name) 11 if(ADD_STARTUP_OBJECT_ALIAS) 12 get_fq_deps_list(fq_dep_list ${ADD_STARTUP_OBJECT_DEPENDS}) 13 add_library(${fq_target_name} ALIAS ${fq_dep_list}) 14 return() 15 endif() 16 17 add_object_library( 18 ${name} 19 SRCS ${ADD_STARTUP_OBJECT_SRC} 20 COMPILE_OPTIONS ${ADD_STARTUP_OBJECT_COMPILE_OPTIONS} 21 ${ADD_STARTUP_OBJECT_UNPARSED_ARGUMENTS} 22 DEPENDS ${ADD_STARTUP_OBJECT_DEPENDS} 23 ) 24 set_target_properties( 25 ${fq_target_name} 26 PROPERTIES 27 OUTPUT_NAME ${name}.o 28 ) 29 30 # Make an executable target of relocatable bitcode for clang if needed. 31 if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR) 32 add_executable(${fq_target_name}.exe $<TARGET_OBJECTS:${fq_target_name}>) 33 set_target_properties(${fq_target_name}.exe PROPERTIES 34 RUNTIME_OUTPUT_DIRECTORY ${LIBC_LIBRARY_DIR} 35 RUNTIME_OUTPUT_NAME ${name}.o) 36 target_link_options(${fq_target_name}.exe PRIVATE 37 "-r" "-nostdlib" "-flto" "-Wl,--lto-emit-llvm") 38 endif() 39endfunction() 40 41if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_ARCHITECTURE}) 42 add_subdirectory(${LIBC_TARGET_ARCHITECTURE}) 43endif() 44 45add_startup_object( 46 crt1 47 ALIAS 48 DEPENDS 49 .${LIBC_TARGET_ARCHITECTURE}.crt1 50) 51 52add_custom_target(libc-startup) 53set(startup_components crt1) 54foreach(target IN LISTS startup_components) 55 set(fq_target_name libc.startup.gpu.${target}) 56 add_dependencies(libc-startup ${fq_target_name}) 57 install(FILES $<TARGET_OBJECTS:${fq_target_name}> 58 DESTINATION ${LIBC_INSTALL_LIBRARY_DIR} 59 RENAME $<TARGET_PROPERTY:${fq_target_name},OUTPUT_NAME> 60 COMPONENT libc) 61endforeach() 62