compiler-rt/cmake/Modules/CompilerRTAIXUtils.cmake

   1 include(CMakeParseArguments)
   2 include(CompilerRTUtils)
   3
   4 function(get_aix_libatomic_default_link_flags link_flags export_list)
   5 set(linkopts
   6   -Wl,-H512 -Wl,-D0
   7   -Wl,-T512 -Wl,-bhalt:4 -Wl,-bernotok
   8   -Wl,-bnoentry -Wl,-bexport:${export_list}
   9   -Wl,-bmodtype:SRE -Wl,-lc)
  10   # Add `-Wl,-G`. Quoted from release notes of cmake-3.16.0
  11   # > On AIX, runtime linking is no longer enabled by default.
  12   # See https://cmake.org/cmake/help/latest/release/3.16.html
  13   set(linkopts -Wl,-G ${linkopts})
  14   set(${link_flags} ${linkopts} PARENT_SCOPE)
  15 endfunction()
  16
  17 function(get_aix_libatomic_type type)
  18   set(${type} MODULE PARENT_SCOPE)
  19 endfunction()
  20
  21 macro(archive_aix_libatomic name libname)
  22   cmake_parse_arguments(LIB
  23     ""
  24     ""
  25     "ARCHS;PARENT_TARGET"
  26     ${ARGN})
  27   set(objects_to_archive "")
  28   foreach (arch ${LIB_ARCHS})
  29     if(CAN_TARGET_${arch})
  30       set(output_dir "${CMAKE_CURRENT_BINARY_DIR}/${libname}-${arch}.dir")
  31       # FIXME: Target name should be kept consistent with definition
  32       # in AddCompilerRT.cmake added by
  33       # add_compiler_rt_runtime(<name> SHARED ...)
  34       set(target ${name}-dynamic-${arch})
  35       if(TARGET ${target})
  36         file(MAKE_DIRECTORY ${output_dir})
  37         add_custom_command(OUTPUT "${output_dir}/libatomic.so.1"
  38                            POST_BUILD
  39                            COMMAND ${CMAKE_COMMAND} -E
  40                            copy "$<TARGET_FILE:${target}>"
  41                                 "${output_dir}/libatomic.so.1"
  42                            # If built with MODULE, F_LOADONLY is set.
  43                            # We have to remove this flag at POST_BUILD.
  44                            COMMAND ${CMAKE_STRIP} -X32_64 -E
  45                                 "${output_dir}/libatomic.so.1"
  46                            DEPENDS ${target})
  47         list(APPEND objects_to_archive "${output_dir}/libatomic.so.1")
  48       endif()
  49     endif()
  50   endforeach()
  51   if(objects_to_archive)
  52     set(output_dir "")
  53     set(install_dir "")
  54     # If LLVM defines top level library directory, we want to deliver
  55     # libatomic.a at top level. See `llvm/cmake/modules/AddLLVM.cmake'
  56     # setting _install_rpath on AIX for reference.
  57     if(LLVM_LIBRARY_OUTPUT_INTDIR AND CMAKE_INSTALL_PREFIX)
  58       set(output_dir "${LLVM_LIBRARY_OUTPUT_INTDIR}")
  59       set(install_dir "${CMAKE_INSTALL_PREFIX}/lib${LLVM_LIBDIR_SUFFIX}")
  60     else()
  61       get_compiler_rt_output_dir(${COMPILER_RT_DEFAULT_TARGET_ARCH} output_dir)
  62       get_compiler_rt_install_dir(${COMPILER_RT_DEFAULT_TARGET_ARCH} install_dir)
  63     endif()
  64     add_custom_command(OUTPUT "${output_dir}/${libname}.a"
  65                        COMMAND ${CMAKE_AR} -X32_64 r "${output_dir}/${libname}.a"
  66                        ${objects_to_archive}
  67                        DEPENDS ${objects_to_archive})
  68     install(FILES "${output_dir}/${libname}.a"
  69             DESTINATION ${install_dir})
  70     add_custom_target(aix-${libname}
  71                       DEPENDS "${output_dir}/${libname}.a")
  72     add_dependencies(${LIB_PARENT_TARGET} aix-${libname})
  73   endif()
  74 endmacro()