Author: Martin Storsjö Date: 2024-03-13T16:01:01-04:00 New Revision: 1f973efd335f34c75fcba1ccbe288fd5ece15a64
URL: https://github.com/llvm/llvm-project/commit/1f973efd335f34c75fcba1ccbe288fd5ece15a64 DIFF: https://github.com/llvm/llvm-project/commit/1f973efd335f34c75fcba1ccbe288fd5ece15a64.diff LOG: [runtimes] Prefer -fvisibility-global-new-delete=force-hidden (#84917) 27ce26b06655cfece3d54b30e442ef93d3e78ac7 added the new option -fvisibility-global-new-delete=, where -fvisibility-global-new-delete=force-hidden is equivalent to the old option -fvisibility-global-new-delete-hidden. At the same time, the old option was deprecated. Test for and use the new option form first; if unsupported, try using the old form. This avoids warnings in the MinGW builds, if built with Clang 18 or newer. Added: Modified: libcxx/src/CMakeLists.txt libcxxabi/src/CMakeLists.txt libunwind/src/CMakeLists.txt Removed: ################################################################################ diff --git a/libcxx/src/CMakeLists.txt b/libcxx/src/CMakeLists.txt index 07ffc8bfdaae3d..1110a79ddcacd5 100644 --- a/libcxx/src/CMakeLists.txt +++ b/libcxx/src/CMakeLists.txt @@ -301,7 +301,10 @@ if (LIBCXX_ENABLE_STATIC) # then its code shouldn't declare them with hidden visibility. They might # actually be provided by a shared library at link time. if (LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS) - append_flags_if_supported(CXX_STATIC_LIBRARY_FLAGS -fvisibility-global-new-delete-hidden) + append_flags_if_supported(CXX_STATIC_LIBRARY_FLAGS -fvisibility-global-new-delete=force-hidden) + if (NOT CXX_SUPPORTS_FVISIBILITY_GLOBAL_NEW_DELETE_EQ_FORCE_HIDDEN_FLAG) + append_flags_if_supported(CXX_STATIC_LIBRARY_FLAGS -fvisibility-global-new-delete-hidden) + endif() endif() target_compile_options(cxx_static PRIVATE ${CXX_STATIC_LIBRARY_FLAGS}) # _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS can be defined in __config_site diff --git a/libcxxabi/src/CMakeLists.txt b/libcxxabi/src/CMakeLists.txt index 0af4dc1448e91a..c8cc93de50777b 100644 --- a/libcxxabi/src/CMakeLists.txt +++ b/libcxxabi/src/CMakeLists.txt @@ -268,7 +268,10 @@ if(LIBCXXABI_HERMETIC_STATIC_LIBRARY) # then its code shouldn't declare them with hidden visibility. They might # actually be provided by a shared library at link time. if (LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS) - target_add_compile_flags_if_supported(cxxabi_static_objects PRIVATE -fvisibility-global-new-delete-hidden) + target_add_compile_flags_if_supported(cxxabi_static_objects PRIVATE -fvisibility-global-new-delete=force-hidden) + if (NOT CXX_SUPPORTS_FVISIBILITY_GLOBAL_NEW_DELETE_EQ_FORCE_HIDDEN_FLAG) + target_add_compile_flags_if_supported(cxxabi_static_objects PRIVATE -fvisibility-global-new-delete-hidden) + endif() endif() # _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS can be defined in libcxx's # __config_site too. Define it in the same way here, to avoid redefinition diff --git a/libunwind/src/CMakeLists.txt b/libunwind/src/CMakeLists.txt index 9c6f5d908b0945..780430ba70ba60 100644 --- a/libunwind/src/CMakeLists.txt +++ b/libunwind/src/CMakeLists.txt @@ -201,7 +201,10 @@ set_target_properties(unwind_static_objects if(LIBUNWIND_HIDE_SYMBOLS) target_add_compile_flags_if_supported(unwind_static_objects PRIVATE -fvisibility=hidden) - target_add_compile_flags_if_supported(unwind_static_objects PRIVATE -fvisibility-global-new-delete-hidden) + target_add_compile_flags_if_supported(unwind_static_objects PRIVATE -fvisibility-global-new-delete=force-hidden) + if (NOT CXX_SUPPORTS_FVISIBILITY_GLOBAL_NEW_DELETE_EQ_FORCE_HIDDEN_FLAG) + target_add_compile_flags_if_supported(unwind_static_objects PRIVATE -fvisibility-global-new-delete-hidden) + endif() target_compile_definitions(unwind_static_objects PRIVATE _LIBUNWIND_HIDE_SYMBOLS) endif() _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
