lib/abi/CMakeLists.txt

   1
   2 # Detect if we are building in the same configuration used to generate
   3 # the abilist files.
   4 if (DEFINED TARGET_TRIPLE
   5     AND EXISTS "${CMAKE_CURRENT_LIST_DIR}/${TARGET_TRIPLE}.abilist"
   6     AND TARGET cxx_shared
   7     AND ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxabi" OR
   8          (APPLE AND "${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "none"))
   9     AND NOT LIBCXX_ABI_UNSTABLE
  10     AND LIBCXX_ABI_VERSION EQUAL "1")
  11     set(LIBCXX_HAS_ABILIST_CONFIGURATION 1 CACHE INTERNAL "")
  12 else()
  13     if (NOT DEFINED LIBCXX_HAS_ABILIST_CONFIGURATION)
  14         message(STATUS "libc++ configuration differs from the abilist configuration. "
  15                 "check-cxx-abilist target is not supported")
  16     endif()
  17     set(LIBCXX_HAS_ABILIST_CONFIGURATION 0 CACHE INTERNAL "")
  18 endif()
  19
  20
  21 if (LIBCXX_HAS_ABILIST_CONFIGURATION)
  22     set(ABILIST_FILE "${CMAKE_CURRENT_LIST_DIR}/${TARGET_TRIPLE}.abilist")
  23     set(SYMDIFF_EXE "${LIBCXX_SOURCE_DIR}/utils/sym_check/sym_diff.py")
  24     add_custom_target(check-cxx-abilist
  25             ${SYMDIFF_EXE} --only-stdlib-symbols ${ABILIST_FILE} $<TARGET_SONAME_FILE:cxx_shared>
  26             DEPENDS cxx_shared
  27             COMMENT "Testing ABI compatibility...")
  28 endif()