libc/startup/gpu/CMakeLists.txt

   1 function(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()
  39 endfunction()
  40
  41 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_ARCHITECTURE})
  42   add_subdirectory(${LIBC_TARGET_ARCHITECTURE})
  43 endif()
  44
  45 add_startup_object(
  46   crt1
  47   ALIAS
  48   DEPENDS
  49   .${LIBC_TARGET_ARCHITECTURE}.crt1
  50 )
  51
  52 add_custom_target(libc-startup)
  53 set(startup_components crt1)
  54 foreach(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)
  61 endforeach()