diff options
| -rw-r--r-- | Modules/Compiler/XL.cmake | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Modules/Compiler/XL.cmake b/Modules/Compiler/XL.cmake index f5331d3..d07890f 100644 --- a/Modules/Compiler/XL.cmake +++ b/Modules/Compiler/XL.cmake @@ -18,6 +18,12 @@ if(__COMPILER_XL) endif() set(__COMPILER_XL 1) +# Find the CreateExportList program that comes with this toolchain. +find_program(CMAKE_XL_CreateExportList + NAMES CreateExportList + DOC "IBM XL CreateExportList tool" + ) + macro(__compiler_xl lang) # Feature flags. set(CMAKE_${lang}_VERBOSE_FLAG "-V") @@ -28,4 +34,15 @@ macro(__compiler_xl lang) set(CMAKE_${lang}_FLAGS_RELWITHDEBINFO_INIT "-g") set(CMAKE_${lang}_CREATE_PREPROCESSED_SOURCE "<CMAKE_${lang}_COMPILER> <DEFINES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>") set(CMAKE_${lang}_CREATE_ASSEMBLY_SOURCE "<CMAKE_${lang}_COMPILER> <DEFINES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>") + + # 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> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> -Wl,-bE:<OBJECT_DIR>/objects.exp <CMAKE_SHARED_LIBRARY_SONAME_${lang}_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" + ) endmacro() |