| # Distributed under the OSI-approved BSD 3-Clause License. See accompanying |
| # file Copyright.txt or https://cmake.org/licensing for details. |
| |
| |
| # This module is shared by multiple languages; use include blocker. |
| if(__AIX_COMPILER_XL) |
| return() |
| endif() |
| set(__AIX_COMPILER_XL 1) |
| |
| # |
| # By default, runtime linking is enabled. All shared objects specified on the command line |
| # will be listed, even if there are no symbols referenced, in the output file. |
| string(APPEND CMAKE_SHARED_LINKER_FLAGS_INIT " -Wl,-brtl") |
| string(APPEND CMAKE_MODULE_LINKER_FLAGS_INIT " -Wl,-brtl") |
| string(APPEND CMAKE_EXE_LINKER_FLAGS_INIT " -Wl,-brtl") |
| |
| |
| macro(__aix_compiler_xl lang) |
| set(CMAKE_SHARED_LIBRARY_RUNTIME_${lang}_FLAG "-Wl,-blibpath:") |
| set(CMAKE_SHARED_LIBRARY_RUNTIME_${lang}_FLAG_SEP ":") |
| set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-G -Wl,-bnoipath") # -shared |
| set(CMAKE_SHARED_LIBRARY_LINK_${lang}_FLAGS "-Wl,-bexpall") |
| set(CMAKE_SHARED_LIBRARY_${lang}_FLAGS " ") |
| set(CMAKE_SHARED_MODULE_${lang}_FLAGS " ") |
| |
| set(CMAKE_${lang}_LINK_FLAGS "-Wl,-bnoipath") |
| |
| # Find the CreateExportList program that comes with this toolchain. |
| find_program(CMAKE_XL_CreateExportList |
| NAMES CreateExportList |
| DOC "IBM XL CreateExportList tool" |
| ) |
| |
| # CMAKE_XL_CreateExportList is part of the AIX XL compilers but not the linux ones. |
| # If we found the tool, we'll use it to create exports, otherwise stick with the regular |
| # create shared library compile line. |
| if (CMAKE_XL_CreateExportList) |
| # The compiler front-end passes all object files, archive files, and shared |
| # library files named on the command line to CreateExportList to create a |
| # list of all symbols to be exported from the shared library. This causes |
| # all archive members to be copied into the shared library whether they are |
| # needed or not. Instead we run the tool ourselves to pass only the object |
| # files so that we export only the symbols actually provided by the sources. |
| set(CMAKE_${lang}_CREATE_SHARED_LIBRARY |
| "${CMAKE_XL_CreateExportList} <OBJECT_DIR>/objects.exp <OBJECTS>" |
| "<CMAKE_${lang}_COMPILER> <CMAKE_SHARED_LIBRARY_${lang}_FLAGS> -Wl,-bE:<OBJECT_DIR>/objects.exp <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" |
| ) |
| endif() |
| endmacro() |