Hi Roman,
you approach ("<CMAKE_XL_CreateExportList_FLAGS> right after
${CMAKE_XL_CreateExportList} in XL.cmake and then add -X32/-X64 into
CMAKE_XL_CreateExportList_FLAGS in your CMakeLists.txt") did not work.
It generated the attached link.txt, where it did not replace
<CMAKE_XL_CreateExportList_FLAGS> with "-X64" (I set it with "set(
CMAKE_XL_CreateExportList_FLAGS -X64 )" in the CMakeLists.txt).
Furthermore, I think the whole handling of 64bit builds on AIX is broken
in cmake. Other tools dealing with object files like ar, nm, and ranlib
also need a "-X64" flag when dealing with 64bit object files. cmake does
not set them itself when CMAKE_SIZEOF_VOID_P indicates a 64bit build and
also does not have CMAKE_${tool}_FLAGS variables to be able to set these
flags manually in a CMakeLists.txt.
Regards,
Michael.
On 02/24/2015 06:57 AM, Roman Bolshakov wrote:
Hi Michael,
Gotcha, thanks for explanation. Right, there should be a way to pass
-X32/-X64 for CreateExportList right prior to
<OBJECT_DIR>/objects.exp. Current definition in
Modules/Compiler/XL.cmake doesn't have a spot for that:
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 <SONAME_FLAG><TARGET_SONAME> -o
<TARGET> <OBJECTS> <LINK_LIBRARIES>"
)
I think it's worth a bug report/contribution. Not sure if it'd work
but if you might try to modify your local installation of CMake and
add something like <CMAKE_XL_CreateExportList_FLAGS> right after
${CMAKE_XL_CreateExportList} in XL.cmake and then add -X32/-X64 into
CMAKE_XL_CreateExportLists_FLAGS in your CMakeLists.txt
Roman
--
Michael Hufer
Senior Software Developer
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/usr/vacpp/bin/CreateExportList CMAKE_XL_CreateExportList_FLAGS
CMakeFiles/xmq_s.dir/objects.exp CMakeFiles/xmq_s.dir/Xmq.cpp.o
CMakeFiles/xmq_s.dir/XmqMsgDump.cpp.o CMakeFiles/xmq_s.dir/xmq_s_version.cpp.o
/usr/vacpp/bin/xlC_r -q64 -qthreaded -qalias=noansi -qhalt=e -qtwolink
-qrtti=all -qinlglue -qnotemplateregistry -qnotempinc -qlanglvl=newexcp -g
-L/home/xgbuild/xgen-trunk/lib/AIX_p64
-L/home/xgbuild/xgen-trunk/external/AIX_p64/libs/mqs-6.0/lib
-qexpfile=export.symbols -q64 -bh:5 -lc -lm -G -Wl,-bnoipath
-Wl,-bE:CMakeFiles/xmq_s.dir/objects.exp -o libxmq_s.so
CMakeFiles/xmq_s.dir/Xmq.cpp.o CMakeFiles/xmq_s.dir/XmqMsgDump.cpp.o
CMakeFiles/xmq_s.dir/xmq_s_version.cpp.o
-L/home/xgbuild/xgen-trunk/lib/AIX_p64 ../libxgencore/libxgencore.so -lmqm_r
-lmqmxa64_r -lACE -lexpat -lpcre
-Wl,-blibpath:/home/xgbuild/xgen-trunk/build/pitbull/src/libxgencore:/home/xgbuild/xgen-trunk/lib/AIX_p64:/usr/lib:/lib
#=============================================================================
# Copyright 2002-2011 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
# This module is shared by multiple languages; use include blocker.
if(__COMPILER_XL)
return()
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")
set(CMAKE_${lang}_COMPILE_OPTIONS_PIC "-qpic")
set(CMAKE_${lang}_FLAGS_DEBUG_INIT "-g")
set(CMAKE_${lang}_FLAGS_RELEASE_INIT "-O")
set(CMAKE_${lang}_FLAGS_MINSIZEREL_INIT "-O")
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_${lang}_COMPILER> <DEFINES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
# CMAKE_XL_CreateExportList is part of the AIX XL compilers but not the linux ones.
# If we found the tool, we'll use it to create exports, otherwise stick with the regular
# create shared library compile line.
if (CMAKE_XL_CreateExportList)
# The compiler front-end passes all object files, archive files, and shared
# library files named on the command line to CreateExportList to create a
# list of all symbols to be exported from the shared library. This causes
# all archive members to be copied into the shared library whether they are
# needed or not. Instead we run the tool ourselves to pass only the object
# files so that we export only the symbols actually provided by the sources.
set(CMAKE_${lang}_CREATE_SHARED_LIBRARY
"${CMAKE_XL_CreateExportList} <CMAKE_XL_CreateExportList_FLAGS> <OBJECT_DIR>/objects.exp <OBJECTS>"
"<CMAKE_${lang}_COMPILER> <CMAKE_SHARED_LIBRARY_${lang}_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> -Wl,-bE:<OBJECT_DIR>/objects.exp <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>"
)
endif()
endmacro()
--
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